CN109547889B - Magnetic connectors and bone conduction speaker devices - Google Patents

Abstract

The application discloses a magnetic connector and a bone conduction loudspeaker device, wherein the magnetic connector comprises: the magnetic adsorption ring, wherein the outer end surface of the magnetic adsorption ring is rotationally symmetrical relative to a preset symmetry point; the first terminal and the second terminal are arranged in the magnetic adsorption ring and are respectively provided with a first contact surface and a second contact surface which are visible from the outer end surface of the magnetic adsorption ring, wherein the first contact surface and the second contact surface are arranged so that the first contact surface and the second contact surface before rotation are respectively overlapped with the first contact surface and the second contact surface after rotation at least partially when the magnetic adsorption ring is symmetrically rotated. Through the mode, the application can improve the accuracy of butt joint with the corresponding joint and is convenient to assemble and use.

Description

Magnetic connectors and bone conduction speaker devices

Technical field

The present application relates to the field of battery technology, and in particular to a magnetic joint and a bone conduction speaker device.

Background technique

With the development of science and technology, the charging methods of electronic devices are constantly changing. In order to adapt to the changes in charging methods, the structure of the corresponding power interface is also constantly undergoing adaptive changes.

As a form of power interface, magnetic power interfaces are increasingly used in various electronic devices, such as bone conduction MP3 players, bone conduction headphones and other bone conduction speaker devices. Since the power supply includes positive and negative terminals, when charging an electronic device, if the positive and negative terminals of the charging interface of the electronic device cannot be aligned with the positive and negative terminals of the charging interface of the charger, it will not be possible to charge the electronic device. Establish a good electrical connection relationship, thereby reducing the charging efficiency of electronic equipment; moreover, there is usually only one alignment method between the positive and negative terminals of the charging interface of the electronic device and the positive and negative terminals of the charging interface of the charger, and at the same time during the production process There is only one relative positional relationship between the middle magnetic structure and the positive terminal and the negative terminal in the power interface for assembly, which brings inconvenience to users and production and assembly.

Contents of the invention

The main technical problem solved by this application is to provide a magnetic joint and a bone conduction speaker device, which can improve the accuracy of docking with the corresponding joint and facilitate assembly and use.

In order to solve the above technical problems, one technical solution adopted by this application is to provide a magnetic joint. The magnetic joint includes: a magnetic suction ring, wherein the outer end surface of the magnetic suction ring is oriented relative to a preset symmetry point. Rotationally symmetrical; the first terminal and the second terminal are arranged in the magnetic adsorption ring, and respectively have a first contact surface and a second contact surface visible from the outer end surface of the magnetic adsorption ring, wherein the first contact surface The surface and the second contact surface are arranged so that when the magnetic adsorption ring rotates symmetrically, the first contact surface and the second contact surface before rotation are at least partially connected to the first contact surface and the second contact surface after rotation. overlapping.

In order to solve the above technical problems, another technical solution adopted by this application is to provide a bone conduction speaker device, which includes the magnetic joint as described above.

The beneficial effects of this application are: different from the prior art, the magnetic adsorption ring of the magnetic joint in this application has an annular design, so that when used in conjunction with the corresponding joint, it can be affected by the "hollow" annular pressure along the magnetic adsorption ring. Adsorption and restraint are carried out from different directions according to the direction of the surface, thereby reducing the situation where the "solid" surface is easily staggered, deviated and cannot be accurately positioned when adsorbed, so as to align the first contact surface and the third contact surface through the alignment of the magnetic adsorption ring. The two contact surfaces are accurately positioned to achieve matching connection with the corresponding joint, thereby improving the accuracy of docking with the corresponding joint; in addition, the outer end surface of the magnetic adsorption ring is rotationally symmetrical relative to the preset symmetry point, thereby making the magnetic joint After being symmetrically rotated with the magnetic adsorption ring, the original position can be restored or at least partially restored. On the one hand, when assembling the magnetic joint, the magnetic adsorption ring can have at least two positions relative to the first contact surface and the second contact surface. Relative assembly position, thereby facilitating assembly; on the other hand, when the magnetic connector is used in the power interface of electronic equipment or power adapters, the magnetic connector can be docked with the corresponding interface at multiple rotation angles to realize the connection of the electronic equipment The normal power supply makes it easy to use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts. in:

Figure 1 is a schematic structural diagram of an embodiment of the bone conduction speaker device of the present application;

Figure 2 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

Figure 3 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

Figure 4 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Figure 5 is a schematic structural diagram of a battery component in an embodiment of the bone conduction speaker device of the present application;

Figure 6 is a schematic structural diagram of a battery assembly in an embodiment of the bone conduction speaker device of the present application;

Figure 7 is a schematic diagram of the wiring of the flexible circuit board at the battery in one embodiment of the bone conduction speaker device of the present application;

Figure 8 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

Figure 9 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Figure 10 is a partial enlarged view of part A in Figure 9;

Figure 11 is a first top view of the magnetic joint in an embodiment of the bone conduction speaker device of the present application;

Figure 12 is a second top view of the magnetic joint in an embodiment of the bone conduction speaker device of the present application;

Figure 13 is a third top view of the magnetic joint in an embodiment of the bone conduction speaker device of the present application;

Figure 14 is a partial enlarged view of part B in Figure 9;

Figure 15 is a partial structural diagram of an embodiment of the bone conduction speaker device of the present application;

Figure 16 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

Figure 17 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Figure 18 is a partial enlarged view of part C in Figure 17;

Figure 19 is a partial structural diagram of an embodiment of the bone conduction speaker device of the present application;

Figure 20 is an exploded view of a partial structure of an embodiment of the bone conduction speaker device of the present application;

Figure 21 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Figure 22 is a partial enlarged view of part D in Figure 21;

Figure 23 is a partial structural cross-sectional view of an embodiment of the bone conduction speaker device of the present application;

Figure 24 is a partial enlarged view of part E in Figure 23;

Figure 25 is a schematic structural diagram of a speaker assembly of an embodiment of the bone conduction speaker device of the present application;

Figure 26 is another structural schematic diagram of the speaker assembly of an embodiment of the bone conduction speaker device of the present application;

Figure 27 is another structural schematic diagram of the speaker assembly of an embodiment of the bone conduction speaker device of the present application;

Figure 28 is a partial structural schematic diagram of the speaker assembly of an embodiment of the bone conduction speaker device of the present application;

Figure 29 is a partial cross-sectional view of the speaker assembly of an embodiment of the bone conduction speaker device of the present application;

Fig. 30 is a partial enlarged view of part F in Fig. 29.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of this application.

Please refer to FIGS. 1 to 30 , which illustrate the bone conduction speaker device of the present application. The bone conduction speaker device in this application may be a bone conduction-based earphone, MP3 player, or other device with a speaker function. Specifically, the bone conduction speaker device may include: a circuit housing 10, an ear hook 20, a rear hook 30, a speaker assembly 40, a control circuit 51, a battery 52, etc. The circuit housing 10 is used to accommodate the control circuit 51 or the battery 52 . The speaker assembly 40 includes a movement housing 41 and an earphone core 42 . The movement housing 41 is connected to the earhook 20 and is used to accommodate the earphone core 42 . The number of the circuit housing 10 , the speaker assembly 40 and the ear hooks 20 can each be two, corresponding to the left and right sides of the user respectively. The movement housing 41 and the circuit housing 10 are respectively disposed at both ends of the earhook 20 , and the backhook 30 is further disposed at an end of the circuit housing 10 away from the earhook 20 .

In one embodiment, the earhook 20 is injection-molded with a shell sheath 21 . Specifically, the earhook 20 includes a first elastic metal wire for supporting the shape of the earhook 20 , and an earhook sheath 22 is injection molded around the first elastic metal wire. The earhook sheath 22 is between the earhook 20 and the circuit housing. The connection point 10 further forms a housing sheath 21 integrally formed with the earhook sheath 22 , that is, the housing sheath 21 is located on the side of the earhook sheath 22 facing the circuit housing 10 .

Similarly, a shell sheath 31 is injection molded on the rear hanger 30 . Specifically, the rear hanger 30 also includes a second elastic metal wire for supporting the shape of the rear hanger 30, and a rear hanger sheath 32 injection molded around the second elastic metal wire. The rear hanger sheath 32 is between the rear hanger 30 and the rear hanger 30. The connection point of the circuit housing 10 further forms a housing sheath 31 integrally formed with the rear hanging sheath 32 , that is, the housing sheath 31 is located on the side of the rear hanging sheath 32 facing the circuit housing 10 .

It should be pointed out that the housing sheath 21, the earhook sheath 22, the housing sheath 31 and the rear hanging sheath 32 can all be made of soft materials with a certain elasticity, such as soft silicone, rubber, etc., for It provides users with a better tactile feel when wearing it.

Specifically, the circuit housing 10, the housing sheath 21, and the housing sheath 31 are formed separately, so that the shape of the inner side wall of the housing sheath 21 is consistent with at least part of the outer side wall of the circuit housing 10 close to the earhook 20. Shape matching, the shape of the inner side wall of the housing sheath 31 matches the shape of at least part of the outer side wall of the circuit housing 10 close to the rear hanger 30, and then after the three are respectively formed, the housing sheath 21 is assembled into a set. way, from the side of the circuit housing 10 facing the earhook 20, it is placed on the periphery of the circuit housing 10 close to the earhook 20, and the housing sheath 31 is hung from the side of the circuit housing 10 toward the back 30 One side of the circuit housing 10 is sleeved on the periphery of the circuit housing 10 close to the rear hanger 30 , so that the circuit housing 10 can be covered by the housing sheath 21 and the housing sheath 31 .

It should be pointed out that since the ambient temperature when the housing sheath 21 and the housing sheath 31 are formed is high, and the high temperature environment may cause certain damage to the control circuit 51 or the battery 52 accommodated in the circuit housing 10, therefore , in the molding stage, the circuit housing 10, the housing sheath 21, and the housing sheath 31 are formed separately and then assembled together, instead of directly injecting the housing sheath 21 and the housing sheath 31 into the circuit housing. The outer periphery of the body 10 can avoid damage to the control circuit 51 or the battery 52 caused by high temperature during integral injection molding, thereby reducing the adverse effects on the control circuit 51 or the battery 52 during the molding stage.

In one embodiment, the circuit housing 10 includes a main side wall 11 , an auxiliary side wall 12 and an end wall 13 connected to each other. The circuit housing 10 may be a flat housing. The flat circuit housing 10 includes a main side wall 11 with a larger area. When the user wears the bone conduction speaker device, the two opposite main side walls 11 respectively It is a side wall for abutting against the head and a side wall opposite to the side wall and located away from the head. The auxiliary side wall 12 and the end wall 13 are both used to connect the two main side walls 11 . Among them, the auxiliary side walls 12 are the two side walls facing the upper and lower sides of the user's head when worn by the user; the end wall 13 is the opposite side wall of the circuit housing 10 and is close to one end of the earhook 20 and The side wall close to one end of the back hanger 30 faces the front side and the back side of the user's head respectively when the user wears the device. The main side wall 11 , the auxiliary side wall 12 and the end wall 13 are connected to each other to jointly form the circuit housing 10 .

Specifically, the housing sheath 21 includes an open end 211 , which extends from the side of the circuit housing 10 toward the earhook 20 and is sleeved on the circuit housing 10 , and covers the side of the circuit housing 10 that faces the earhook 20 . The end wall 13 of the side, as well as the portions of the main side wall 11 and the auxiliary side wall 12 close to the ear hook 20; the housing sheath 31 includes an open end 311, which extends from the circuit housing 10 toward the rear hook 30 side. It is sleeved on the circuit housing 10 and covers the end wall 13 of the circuit housing 10 facing the rear hanger 30 , as well as the portions of the main side wall 11 and the auxiliary side wall 12 close to the rear hanger 30 . And then the open end 211 and the open end 311 are butted with each other on the main side wall 11 and the auxiliary side wall 12 of the circuit housing 10 to cover the circuit housing 10 .

In one application scenario, the housing sheath 21 and the housing sheath 31 do not completely cover the entire circuit housing 10. For example, exposed holes may be provided at positions corresponding to the keys or corresponding to the power interface. The corresponding structure is exposed to facilitate user operation.

Among them, after the housing sheath 21 and the housing sheath 31 are set on the periphery of the circuit housing 10, they can be further fixed on the circuit housing 10 by certain means, thereby connecting the circuit housing 10 with the corresponding ones. The housing jackets are held together.

Specifically, in one embodiment, positioning bumps 212 and positioning bumps 312 are respectively integrally formed on the inner surfaces of the housing sheath 21 and the housing sheath 31 corresponding to the main side wall 11 , and the outer surfaces of the main side wall 11 are integrally formed. Positioning grooves 111 and positioning grooves 112 are respectively provided on the surface.

Wherein, the positioning protrusion 212 is provided on the inner wall close to the opening end 211 . The positioning bump 212 may be an annular bump surrounding the inner wall of the housing sheath 21 , or may be a plurality of bumps arranged at intervals on the inner side wall of the housing sheath 21 , etc., which may be determined according to actual needs. set up. In this embodiment, the number of positioning bumps 212 is two, which are respectively provided on the inner side walls of the housing sheath 21 corresponding to the two main side walls 11 of the circuit housing 10; similarly, the positioning bumps 312 The number also corresponds to two, which are respectively provided on the inner side walls of the housing sheath 31 corresponding to the two main side walls 11 of the circuit housing 10 .

Specifically, after the housing sheath 21 and the housing sheath 31 are respectively placed on both sides of the circuit housing 10, the positioning bumps 212 are further embedded in the positioning grooves 111, and the positioning bumps 312 are embedded in the positioning grooves. The groove 112 is formed so that the open end 211 of the housing sheath 21 and the open end 311 of the housing sheath 31 are elastically abutted together, thereby covering the circuit housing 10 .

Further, in one embodiment, the outer side wall 313 of the housing sheath 31 covering the area of the end wall 13 of the circuit housing 10 is inclined relative to the auxiliary side wall 12 . Specifically, when the user wears it, the outer wall 313 of the shell sheath 31 is inclined in a direction gradually away from the rear hanger 30 from a side close to the upper side of the user's head to a side close to the lower side of the user's head.

Among them, the positioning bumps 212 and the positioning bumps 312 can be arranged in strips along the opening end 211 and the opening end 311 respectively, and can be inclined relative to the auxiliary side wall 12; further, the housing sheath 21 and the housing sheath 31 The joint seam on the main side wall 11 of the circuit housing 10 can also be arranged at an angle relative to the auxiliary side wall 12 . The positioning bump 212 and the positioning bump 312, as well as the inclination direction of the joint between the housing sheath 21 and the housing sheath 31 on the main side wall 11 of the circuit housing 10 can be consistent with the coverage of the housing sheath 31. The inclination directions of the outer side walls 313 in the area of the end wall 13 of the circuit housing 10 are consistent, thereby making the bone conduction speaker device more consistent in appearance.

In one application scenario, the covering area of the circuit housing 10 by any one of the housing sheath 21 and the housing sheath 31 is not less than half of the covering area of the circuit housing 10 by the other one. . For example, the covering area of the circuit housing 10 by the housing sheath 21 is not less than half of the covering area of the circuit housing 10 by the housing sheath 31 , or the coverage area of the circuit housing 10 by the housing sheath 31 The covering area is not less than one-half of the covering area of the circuit housing 10 by the housing sheath 21 . Among them, the covering area of the circuit housing 10 by the housing sheath 21 and the covering area of the circuit housing 10 by the housing sheath 31 and the ratio between the two can be set to other values according to the needs, for example, each can occupy Half, there is no specific limit here.

Among them, the circuit housing 10 and the rear hanger 30 can be integrally formed, or can also be connected together through plugging, snapping, etc.

In one embodiment, the rear hanger 30 further includes a plug end 33 disposed toward the circuit housing 10 , and the housing sheath 31 is sleeved on at least part of the exterior of the plug end 33 . Specifically, the connector end 33 can be injection molded on the end of the second elastic metal wire, and the rear sheath 32 can be further injection molded on the second elastic metal wire and part of the outside of the connector end 33, and be integrated at the connector end 33. The housing sheath 31 is formed so that the housing sheath 31 is further sheathed around the periphery of the area of the connector end 33 that is not covered by the rear hanging sheath 32 .

Furthermore, the circuit housing 10 is provided with a socket hole 14 facing the rear hanger 30 , wherein the socket hole 14 can be provided on the end wall 13 of the circuit housing 10 close to the rear hanger 30 , and on the end wall 13 The side close to the first auxiliary side wall 12 extends toward the rear hanger 30 .

The plug end 33 is at least partially inserted into the plug hole 14 . Among them, slots 331 arranged perpendicularly to the insertion direction of the connector end 33 relative to the connector hole 14 are respectively provided on opposite sides of the connector end 33 . The two slots 331 can be spaced apart and symmetrically arranged on the connector end 33 . both sides. Furthermore, the two slots 331 may both communicate with corresponding side walls of the plug end 33 perpendicular to the insertion direction.

Correspondingly, the side wall 15 defining the socket hole 14 is provided with through holes 151 corresponding to the positions of the two slots 331 . The side wall 15 of the connector hole 14 is disposed around the periphery of the connector hole 14 and faces the lower side of the user's head in the wearing state.

Wherein, the bone conduction speaker device further includes a fixing member 53. The fixing member 53 includes two parallel pins 531 and a connecting portion 532 for connecting the pins 531. In this embodiment, the two pins 531 are arranged in parallel, and the connecting portion 532 can be vertically connected and arranged on the same side of the two pins 531 to form a U-shaped fixing member 53 .

Furthermore, the pin 531 can be inserted into the slot 331 from the outer wall of the side wall 15 of the socket hole 14 through the through hole, thereby blocking the connecting portion 532 from the outside of the socket hole 14 , thereby realizing the connection between the circuit housing 10 and the rear panel. Hang 30mm plug-in fixation.

Furthermore, in one embodiment, a through hole 161 opposite to the through hole 151 is further provided on the side wall 16 of the socket hole 14 opposite to the side wall 15 , and the pin 531 is further inserted into the through hole 161 through the slot 331 Inside. The side wall 16 may be the auxiliary side wall 12 on the side of the circuit housing 10 close to the socket 14. When the bone conduction speaker device is in the wearing state, the auxiliary side wall 12 faces the upper side of the user's head.

In this embodiment, the pins 531 are inserted into the slots 331 through the through holes 151 and further inserted into the through holes 161 through the slots 331. That is to say, the pins 531 can connect the two opposite sides of the connector end 33 of the rear hanger 30. The side wall and the plug end 33 are completely penetrated and connected together, thereby making the connection between the circuit housing 10 and the rear hanger 30 more stable.

Furthermore, in one embodiment, the plug end 33 is further divided into a first plug section 332 and a second plug section 333 along the insertion direction of the plug end relative to the plug hole 14 . In a cross-sectional direction perpendicular to the insertion direction of the plug end 33 relative to the plug hole 14 , the cross section of the first plug section 332 is larger than the cross section of the second plug section 333 .

The rear hanging sheath 32 can be injection molded on the first connector section 332 of the connector end, and the housing sheath 31 can be integrally injection molded at the connection between the first connector section 332 and the second connector section 333 . Further, the slot 331 is provided on the second connector section 333 , and the second connector section 333 is inserted into the connector hole 14 , and the connector end 33 is exposed to the outside of the connector hole 14 .

Further, in one embodiment, the first plug section 332 is provided with a first wiring groove 3321 arranged along the insertion direction of the plug end 33 relative to the plug hole 14 , and the second plug section 333 is away from the first wiring groove 3321 . The outer end surface of the connector section 332 is provided with a second wiring groove 3331 extending perpendicular to the insertion direction and penetrating at least one outer side surface. Specifically, the first wiring groove 3321 is provided on a side of the first plug section 332 close to the auxiliary side wall 12 used to define the plug hole 14, and along the insertion direction of the plug end 33 relative to the plug hole 14. It penetrates both end surfaces of the first connector section 332 . The second wiring trough 3331 can penetrate the outer two side surfaces of the second plug section 333 that are perpendicular to the extension direction of the second wiring trough 3331 .

In addition, the inner wall of the socket hole 14 is provided with a wiring groove 162 that has one end connected to the first wiring groove 3321 and the other end connected to the second wiring groove 3331. The wiring groove 162 is made of an inner part of the side wall 16. The wall is concave.

Further, the circuit housing 10 includes an inner partition wall 17 disposed inside the housing to form an accommodating cavity 18 spaced apart from the connector hole 14 . Specifically, the main side wall 11 , the auxiliary side wall 12 and the end wall 13 of the circuit housing 10 together form an accommodation space, and the arrangement of the inner partition 17 divides the accommodation space into an accommodation cavity 18 and a plug hole 14 Two parts. The inner partition wall 17 is further provided with a wiring hole 171 so as to connect the connecting hole 14 and the accommodating cavity 18 through the wiring hole 171 .

The bone conduction speaker device is further provided with a rear hanging wire 34, which passes through the rear hanging wire 30, and its two ends are connected to the control circuit 51 and the battery 52 respectively. Specifically, the rear hanging wire 34 sequentially passes through the first wiring groove 3321, the wiring groove 162 and the second wiring groove 3331 from the rear hanging wire 30, and passes through the wiring hole 171 and enters the accommodation cavity 18 to communicate with the control Circuit 51 or battery 52 is connected.

In one embodiment, the circuit housing 10 includes a first circuit housing 10a and a second circuit housing 10b. The bone conduction speaker device further includes a flexible circuit board 54, which can be accommodated together with the battery 52. in the accommodating cavity 18 of the first circuit housing 10a. The flexible circuit board 54 may be a flexible printed circuit (FPC). The battery 52 is provided with a positive terminal and a negative terminal.

Specifically, the flexible circuit board 54 includes a first board 541 and a second board 542. One end of the first board 541 is fixed on the battery 52, and the other end is connected to the second board 542. The flexible circuit board 54 can be a whole body, and the first board body 541 and the second board body 542 are respectively two areas of the whole body. Among them, the second board body 542 can be provided with welding pads and flexible traces connecting the welding pads, and the first board body 541 can be provided with only flexible traces for connecting the corresponding welding pads on the second board body 542. Connected to battery 52. Since only flexible leads are provided on the first plate body 541, the first plate body 541 can be bent, as shown in FIG. 6, so that the position of the flexible circuit board 54 can be adjusted according to needs.

A plurality of soldering pads are spaced on the second board body 542 , and the plurality of soldering pads include two soldering pads 543 and a plurality of soldering pads 544 . Further, two consecutive flexible leads 545 are provided on the first plate body 541 and the second plate body 542, and the two pads 543 are electrically connected to the positive terminal of the battery 52 by the two flexible leads 545. and negative extreme.

In addition, the plurality of bonding pads 544 can be divided into at least two groups, and the number of the bonding pads 544 in each group can be set according to requirements. For example, the number of the bonding pads 544 in each group can be two, and the two bonding pads 544 The two pads 544 in each group are electrically connected to each other by flexible leads 546 provided on the second board 542 respectively. The two pads 544 in each group can be connected to functional components through wires, and then the two corresponding functional components are connected through the flexible leads 546. connected together.

In the above method, on the one hand, the pads used for circuit switching are arranged on the second board body 542 of the flexible circuit board 54, and are connected to the battery 52 through the first board body 541 of the flexible circuit board 54. , so that the first plate body 541 can be bent to place the second plate body 542 according to space requirements, etc., thereby optimizing the space utilization of the accommodation cavity 18 of the first circuit housing 10a and improving space utilization. rate; on the other hand, the two pads 543 can be directly connected to the positive and negative terminals of the battery 52 through the flexible leads 545 on the flexible circuit board 54, without the need to set additional pads to connect the positive and negative terminals of the battery 52. The negative electrode is drawn out, thereby reducing the number of pads and simplifying the structure and process.

In one embodiment, the first plate body 541 is further folded so that the second plate body 542 fits on the side surface of the battery 52 so that the first plate body 541 and the battery 52 are stacked, thereby greatly reducing the battery 52 and the space occupied by the flexible circuit board 54.

Specifically, the battery 52 may include a battery core 521. The battery core 521 includes a body area 5211 and a sealing area 5212. The body area 5211 and the sealing area 5212 are arranged flat, and the thickness of the body area 5211 is greater than the thickness of the sealing area 5212, so that the sealing The side surface of the area 5212 and the side surface of the body area 5211 are arranged in steps.

Specifically, the side surfaces of the sealing area 5212 and the body area 5211 in the thickness direction of the battery core 521 are arranged in a stepped manner, so that the second plate body 542 can utilize the space formed by the body area 5211 and the sealing area 5212 of the battery core 521 , there is no need to set up an additional separate space to place the flexible circuit board 54, thereby further improving space utilization.

In one embodiment, the battery 52 further includes a hard circuit board 522 disposed on the side surface of the sealing area 5212 of the battery core 521 . Specifically, the positive terminal and the negative terminal are provided on the hard circuit board 522, and a protection circuit (not shown) is further provided on the hard circuit board 522 to protect the battery 52 from overload through the protection circuit.

In this embodiment, one end of the first board body 541 away from the second board body 542 is attached and fixed to the hard circuit board 522, so that the two flexible leads on the first board body 541 are connected to the hard circuit board 522. The positive and negative terminals are connected. Specifically, the first board body 541 and the hard circuit board 522 can be directly pressed together during the manufacturing stage.

Further, the shapes of the first plate body 541 and the second plate body 542 can be set according to actual conditions. In this embodiment, the shape of the first plate body 541 matches the shape of the sealing area 5212 of the battery core 521, and both can be a long rectangle. The shape of the second plate body 542 can also be a rectangle, and is disposed on the first One end of the plate body 541 in the length direction is perpendicular to the first plate body 541 along the length direction. Further, the first plate body 541 can be connected to the middle area of the second plate body 542 in the length direction, so that the first plate body 541 and the second plate body 542 are arranged in a T shape.

Further, on the second board body 542, the soldering pads 543 and 544 may be arranged in various ways. For example, all the soldering pads may be arranged at intervals along a straight line, or at intervals in other shapes.

In this embodiment, two soldering pads 543 are spaced apart in the middle area of the second board 542 along the length direction of the second board 542 , and a plurality of soldering pads 544 are further distributed along the two soldering pads 543 along the second board 542 on both sides of the length direction, and the pads 544 in each group are arranged adjacently.

In this embodiment, the bonding pads 544 in each group are arranged at intervals along the width direction of the second plate body 542 and are staggered from each other along the length direction of the second plate body 542, so that the bonding pads 544 in each group can be arranged in a stepped shape. Interval settings. In this way, on the one hand, it is possible to avoid the formation of flush spacing areas between two adjacent groups of solder pads 544, thereby making the intensity distribution on the second plate body 542 uniform, thereby reducing the number of adjacent two sets of solder pads. The occurrence of bending between 544 reduces the probability of the second plate body 542 breaking due to bending, so as to protect the second plate body 542; on the other hand, it can enlarge the distance between the pads to facilitate welding. , and reduce short circuits between different pads.

This application also provides a battery assembly. In a battery assembly implementation, the battery assembly includes the battery 52 and the flexible circuit board 54 in the above embodiment. The battery assembly in this embodiment can be used in devices such as headphones and MP3 players that require circuit switching at the battery 52 . For example, it can be used in the bone conduction speaker device in this application.

Furthermore, in the embodiment of the bone conduction speaker device of the present application, the back hook 30 is connected to one end of the first circuit housing 10a and is provided with a plurality of back hook wires 34; the ear hook 20 is connected to the first circuit shell. The other end of the body 10a is provided with a plurality of ear hook wires 23.

Each group of soldering pads 544 includes two soldering pads 544 . The earhook wires 23 and the corresponding rear hanging wires 34 are respectively electrically connected to the two soldering pads 544 in the same group of soldering pads 544 . The flexible leads 546 of the two soldering pads 544 connect the functional components connected to the back hook wire 34 and the functional components connected to the ear hook wire 23 together.

In one embodiment, the movement housing 41 further accommodates auxiliary function modules (not shown) such as key switches 431. In addition, the control circuit 51 is accommodated in the second circuit housing 10b. There are four circuit modules on the second plate 542. Group pad 544.

The earhook wire 23 includes two audio signal wires 231 , namely a first earhook wire 2311 and a second earhook wire 2312 connected to the earphone core 42 . The rear earhook wire 34 includes a rear earhook wire 34 that is connected to the control circuit 51 and is used to provide signals to the earphone. The core 42 carries the audio signal to the first backhook 341 and the second backhaul conductor 342 . Further, the first earhook wire 2311, the first backhook wire 341, the second earhook wire 2312, and the second backhook wire 342 are respectively connected to different pads in different groups of the two groups of pads 544. Specifically, the first earhook wire 2311 and the first backhook wire 341 are respectively connected to two pads 544 in the same group of pads 544, and the second earhook wire 2312 and the second backhook wire 342 are respectively connected to another pad. Two pads 544 in a group of pads 544 are electrically connected to the earphone core 42 and the control circuit 51 to realize the transmission of audio signals.

In addition, the earhook wire 23 also includes at least two auxiliary signal wires 232, for example, the third earhook wire 2321 and the fourth earhook wire 2322 connected to the key switch 431. Correspondingly, the rear earhook wire 34 also includes a control circuit. 51 is connected to the third rear hanging wire 343 and the fourth rear hanging wire 344 for transmitting key signals to the key switch 431 . Further, the third ear hook wire 2321, the third rear hook wire 343, the fourth ear hook wire 2322, and the fourth rear hook wire 344 are respectively connected to different pads 544 in different groups of the two sets of pads 544, The two sets of soldering pads 544 are different from the two sets of soldering pads 544 described above for transmitting audio signals to the earphone core 42 . Further, the third earhook wire 2321 and the third rear hanging wire 343 are respectively connected to two pads 544 in the same group of pads 544, and the fourth earhook wire 2322 and the fourth rear hanging wire 344 are respectively connected to another group of pads 544. Two pads 544 in a group of pads 544 are electrically connected to the key switch 431 and the control circuit 51 to realize the transmission of key signals.

Further, the rear hanging wire 34 also includes a fifth rear hanging wire 345 and a sixth rear hanging wire 346 connected to the control circuit 51 and used to supply power to the control circuit 51 . The fifth rear hanging wire 345 and the sixth rear hanging wire 346 They are connected to two pads 543 respectively, thereby connecting the battery 52 and the control circuit 51 together.

In one embodiment, the bone conduction speaker device further includes a magnetic connector 55 , which can be used as a power interface to charge the bone conduction speaker device in conjunction with the power interface of the charger. Specifically, when charging the bone conduction speaker device, the magnetic connector 55 and the corresponding connector of the charger can form a system. The two structurally match each other and can be adsorbed together, thereby establishing an electrical connection to facilitate bone conduction. The speaker unit is charged. In this embodiment, the magnetic connector 55 includes: a magnetic adsorption ring 551, an insulating base 552, and a first terminal 553 and a second terminal 554.

The magnetic adsorption ring 551 can be a magnet, and the two opposite ends have different magnetic polarities. Correspondingly, the corresponding connector of the charger has a magnetic adsorption structure corresponding to the magnetic adsorption ring 551. The magnetic adsorption structure can be made of magnetic material, such as iron, etc., regardless of the magnetic polarity of the outer end surface of the magnetic adsorption ring 551, Both can be adsorbed together; the magnetic adsorption structure can also be a magnet. In this case, only when the magnetism of the outer end surface of the magnetic adsorption structure is opposite to the magnetic polarity of the outer end surface of the magnetic adsorption ring 551, the two can proceed. Adsorption. Furthermore, the magnetic connector 55 and the corresponding connector can be attracted to each other in a preset relative position relationship through magnetic adsorption, so that the corresponding terminals of the two are butted together to establish an electrical connection.

Specifically, the shape of the outer end surface of the magnetic adsorption ring 551 may be annular, and the annular end surface is adsorbed together with the magnetic adsorption structure of the corresponding joint. It should be pointed out that due to the "hollow" design of the ring, the magnetic adsorption ring 551 will be adsorbed and constrained by the ring in multiple directions when adsorbing the annular magnetic adsorption structure of the corresponding joint, so that the magnetic adsorption ring 551 Can be accurately combined with the corresponding magnetic adsorption structure.

The insulating base 552 is at least partially inserted into the magnetic adsorption ring 551 to fix the magnetic adsorption ring 551 . The insulating base 552 is provided with at least two accommodating holes 5521 . The extending direction of the at least two accommodating holes 5521 is consistent with the height direction of the insulating base 552 and penetrates at least the outer end surface of the insulating base 552 . The insulating base 552 can be made of insulating materials such as PC and PVC.

Further, the first terminal 553 and the second terminal 554 are respectively arranged in a columnar shape, and the number is consistent with the number of accommodating holes 5521 on the insulating base 552, so as to be inserted into the respective accommodating holes 5521, and the corresponding end faces are The receiving hole 5521 is exposed at one end of the top surface of the insulating base 552 so that it is visible from the top surface of the insulating base 552 and can be flush with the top surface of the insulating base 552 to form the first contact surface 5531 and the second contact surface 5531 . Contact surface 5541. The first terminal 553 and the second terminal 554 respectively correspond to the positive terminal and the negative terminal of the power supply, and are used to supply power to the electronic device by connecting the positive terminal and the negative terminal of the power supply. Correspondingly, the first contact surface 5531 and the second contact surface 5541 can be electrically connected to the corresponding connector through contact.

In the above method, when the magnetic joint 55 is matched with the corresponding joint, it can be attracted and constrained from different directions along the direction of the "hollow" annular surface of the magnetic adsorption ring 551, thereby reducing the time when the "solid" surface is adsorbed. It is easy to stagger or deviate and cannot be accurately positioned. By aligning the magnetic adsorption ring 551, the first contact surface 5531 and the second contact surface 5541 are accurately positioned to achieve matching connection with the corresponding connector, thereby improving the connection with the corresponding connector. The accuracy of docking of corresponding joints.

In one embodiment, the insulating base 552 includes a supporting part 5522 and an inserting part 5523. Specifically, the supporting part 5522 and the inserting part 5523 are provided along the extending direction of the accommodating hole 5521. The cross-section of the supporting part 5522 is larger than the cross-section of the inserting part 5523, thereby forming a supporting table 55221 at the connection between the two.

The shape of the outer wall near the end of the insertion portion 5523 matches the shape of the inner wall of the magnetic adsorption ring 551 , so that the insertion portion 5523 can be inserted into the magnetic adsorption ring 551 and lift up the magnetic adsorption ring 551 . to a fixed effect. The two ends of the accommodating hole 5521 of the insulating base 552 respectively penetrate the end surfaces of the insertion portion 5523 and the supporting portion 5522 away from each other, so that the first terminal 553 and the second terminal 554 penetrate the entire insulating base 552 and are inserted into the insulating base 552 . The outer end surface of the placement portion 5523 away from the support portion 5522 exposes the first contact surface 5531 and the second contact surface 5541 . Furthermore, the first terminal 553 and the second terminal 554 can also extend from the outer end surface of the supporting portion 5522 away from the insertion portion 5523 to further connect the internal circuit.

Specifically, the insertion portion 5523 can be inserted into the ring of the magnetic adsorption ring 551 from an end far away from the support portion 5522, so that the end of the magnetic adsorption ring 551 and its outer end facing away is supported on the support table 55221. The size of the outer side of the magnetic adsorption ring 551 can be consistent with the size of the outer side of the support portion 5522, thereby making the structure of the magnetic joint more unified.

Furthermore, in one embodiment, the magnetic connector 55 further includes a shell 555 , which can be sleeved on the outer periphery of the insulating base 552 and the magnetic adsorption ring 551 , so that the entire magnetic connector 55 Become a whole, thereby facilitating the further assembly of the magnetic connector 55 on the power interface of the bone conduction speaker device.

The material of the housing 555 can be a metal material that is not attracted by a magnetic field, such as copper, aluminum, aluminum alloy, etc., or a plastic material, which is not specifically limited here.

In this embodiment, metal is used as the housing 555 of the magnetic joint 55, so that it can be made thin while meeting the strength requirements, thereby reducing space occupation.

Specifically, the housing 555 includes a cylinder 5551 and a flange 5552 provided at one end of the cylinder 5551 and protruding toward the inside of the cylinder 5551, so that one end of the housing 555 where the flange 5552 is provided is partially open, and the other end is completely open. . The shape of the inner surface of the barrel 5551 matches the shape of the magnetic adsorption ring 551 and the outer surface of the support portion 5522 of the insulating base 552. The flange 5552 at the partially open end can cover the magnetic adsorption ring 551 to connect the first terminal 553 and The first contact surface 5531 and the second contact surface 5541 of the second terminal 554 are exposed, so that the housing 555 can be sleeved on the insulating base 552, the first terminal 553, the second terminal 554 and the magnetic adsorption ring through the completely open end. 551, and make the flange 5552 cover the periphery of the end of the magnetic adsorption ring 551 away from the support part 5522, and expose the first contact surface 5531 and the second contact surface 5541 through the partially open end to further connect with the corresponding joint. Electrical connection.

In one application scenario, the outer end surface of the insertion portion 5523 of the insulating base 552 away from the support portion 5522 is protruding relative to the end of the magnetic adsorption ring 551 away from the support portion 5522. At this time, the partial opening formed by the flange 5552 The shape of the end can match the shape of the periphery of the insertion portion 5523 , so that one end of the insertion portion 5523 away from the support portion 5522 can pass through part of the open end of the housing 555 and extend to the outside of the housing 555 .

In another application scenario, the outer end surface of the insertion portion 5523 of the insulating base 552 away from the support portion 5522 is recessed relative to the top surface of the flange 5552 .

It should be pointed out that the magnetic connector 55 in this embodiment can be used in the power interface of an electronic device or a power interface of a charger, so as to cooperate with the power interface of the corresponding charger or the power interface of the electronic device to form an electronic device. powered by. In the above method, by protruding or recessing the top surface of the insulating base 552 relative to the top surface of the flange 5552, the magnetic connector 55 can protrude into the corresponding connector, thereby forming a certain plug-in fit between the two. relationship to make the connection between the two more solid.

Further, in one embodiment, the outer peripheral wall of the support part 5522 and the inner peripheral wall of the barrel 5551 may be respectively provided with buckling structures that cooperate with each other. Through the buckling structures, the housing 555 can be aligned with the insulating base 552 and The magnetic adsorption ring 551 is set more firmly, thereby making the structure of the magnetic joint 55 more stable.

Specifically, in one application scenario, a through groove 55511 is provided on each of the two opposite outer surfaces of the outer peripheral wall of the cylinder 5551. Correspondingly, the support portion 5522 is at a position corresponding to the two through grooves 55511. A buckle 55222 is provided respectively. When assembling the magnetic connector 55, the housing 555 can be sleeved on the periphery of the insulating base 552, and further the hooks on the support portion 5522 can be locked in the corresponding through slot. on the side wall of 55511, thereby fixing the housing 555 on the periphery of the outer peripheral wall of the support part 5522.

It should be noted that the specific shape of the magnetic adsorption ring 551 in each of the above embodiments can be set according to different requirements.

In one embodiment, the outer end surface of the magnetic adsorption ring 551 may be rotationally symmetrical with respect to a preset symmetry point. When the magnetic adsorption ring 551 rotates symmetrically, the first contact surface 5531 and the second contact surface 5541 rotate with the magnetic adsorption ring 551, and the first contact surface 5531 and the second contact surface 5541 before rotation are respectively connected with the second contact surface after rotation. The first contact surface 5531 and the second contact surface 5541 at least partially overlap. That is to say, the surface composed of the first contact surface 5531 and the second contact surface 5541 can also be rotationally symmetrical with respect to the preset symmetry point, or be close to rotational symmetry. The shape of the outer end surface of the magnetic adsorption ring 551 and the angle of rotational symmetry can be determined according to the arrangement of the first contact surface 5531 and the second contact surface 5541 .

Specifically, the outer end surface of the magnetic adsorption ring 551 can be configured as a circular ring, an elliptical ring, a rectangular ring, etc. as needed, as long as it can be consistent with the arrangement of the first contact surface 5531 and the second contact surface 5541 to achieve symmetry. It is sufficient that the first contact surface 5531 and the second contact surface 5541 before rotation can partially overlap with the second contact surface 5541 after symmetrical rotation.

In the above manner, since the outer end surface of the magnetic adsorption ring 551 is rotationally symmetrical with respect to the preset symmetry point, the magnetic adsorption ring 551 can return to the position before the symmetrical rotation after symmetrical rotation. On the one hand, the magnetic adsorption joint 55 is assembled, the magnetic adsorption ring 551 can have at least two relative assembly positions relative to the first contact surface 5531 and the second contact surface 5541, thereby facilitating assembly; on the other hand, when the magnetic connector 55 is used in a power interface , the magnetic connector 55 can be connected to the corresponding interface at multiple rotation angles to achieve normal power supply to the electronic device, thereby facilitating use.

Specifically, as shown in Figure 10, in one embodiment, the magnetic adsorption ring 551 may be an annular design with the symmetry point as the center, and the first contact surface 5531 and the second contact surface 5541 are respectively concentrically arranged with the magnetic adsorption ring 551. and nested within each other in a circular or donut-shaped design.

In this way, when the magnetic adsorption ring 551 performs symmetrical rotation at any angle about the center of the circle, the first contact surface 5531 and the second contact surface 5541 before rotation and the first contact surface 5531 and the second contact surface 5541 after rotation can both overlapping. Therefore, during assembly, the magnetic adsorption ring 551 only needs to be concentrically sleeved with the first contact surface 5531 and the second contact surface 5541 on the periphery of the insertion portion 5523 of the insulating base 552, without comparing other positions; at the same time, When the magnetic connector 55 is docked with the corresponding connector, the first contact surface 5531 and the second contact surface 5541 can be aligned with the positive terminal of the corresponding interface as long as the magnetic adsorption ring 551 is concentrically aligned with the magnetic attraction structure of the corresponding connector. Correspondingly connected to the negative terminal without further calibration in other ways, making it convenient for users to use.

In one embodiment, as shown in Figure 11, the magnetic adsorption ring 551 has 180-degree rotational symmetry relative to the symmetry point. That is, when the magnetic adsorption ring 551 rotates 180 degrees relative to the symmetry point, the first contact surface 5531 and the second contact surface before rotation The surface 5541 at least partially overlaps the rotated first contact surface 5531 and the second contact surface 5541.

The size of the magnetic adsorption ring 551 is different in the first direction and the second direction that pass through the symmetry point and are perpendicular to each other. For example, the outer end surface of the magnetic adsorption ring 551 can be an elliptical ring, a rectangular ring, etc., which are not used here. Make specific limitations.

In one application scenario, the size in the first direction is larger than the size in the second direction. The number of the first contact surface 5531 may be one and is disposed at the symmetry point of the magnetic adsorption ring 551, and the number of the second contact surface 5541 may be two, so that when the magnetic adsorption ring 551 rotates relative to the symmetry point, The two second contact surfaces 5541 rotate relative to the first contact surface 5531, and when the magnetic adsorption ring 551 rotates 180 degrees, the two second contact surfaces 5541 change positions.

Further, two second contact surfaces 5541 can be disposed on both sides of the symmetry point along the first direction, and when the magnetic adsorption ring 551 rotates 180 degrees, any one of the two second contact surfaces 5541 before rotation is At least partially overlaps with another rotated second contact surface 5541. Since both contact surfaces are arranged along the first direction, before and after the rotation, the two second contact surfaces 5541 are located on the same straight line and exchange positions with each other. That is, one of the second contact surfaces 5541 is located at the rotating position after the rotation. On the other second contact surface 5541 in front. Therefore, when any one of the two second contact surfaces 5541 before rotation at least partially overlaps with the other second contact surface 5541 after rotation, the two second contact surfaces 5541 at least partially overlap before and after rotation.

Specifically, the first contact surface 5531 and the two second contact surfaces 5541 may have 180-degree rotational symmetry with respect to the symmetry point, that is, the first contact surface 5531 and the second contact surface 5541 may be 180 degrees rotationally symmetrical with respect to the center point of the first contact surface 5531. 180 degree rotational symmetry, so that the first contact surface 5531 and the second contact surface 5541 before the symmetrical rotation and the first contact surface 5531 and the second contact surface 5541 after the symmetrical rotation can completely overlap, but cannot be rotated by other degrees. Total overlap.

The shape of the first contact surface 5531 and the shape of the second contact surface 5541 may be the same or different, but the shapes of the two second contact surfaces 5541 must be the same. For example, both the first contact surface 5531 and the second contact surface 5541 are circular surfaces, or other surfaces that can completely overlap after being rotated 180 degrees around the center point of the first contact surface 5531.

In the above manner, since the magnetic adsorption ring 551 is rotated 180° with respect to the symmetry point, the magnetic adsorption ring 551 faces two opposite directions. At the same time, the first contact surface 5531 and the second contact surface 5541 before the 180° rotation are in contact with the rotation. The rear first contact surface 5531 and the second contact surface 5541 at least partially overlap, so that when assembling the magnetic connector 55, the magnetic adsorption ring 551 can be sleeved on the first terminal 553 in both opposite directions. and the periphery of the insertion portion 5523 of the insulating base 552 of the second terminal 554, thereby facilitating assembly; in addition, when the magnetic connector 55 is used for docking with the corresponding connector, it can also be realized in two opposite directions. docking to facilitate user use.

In one embodiment, the magnetic adsorption ring 551 is circumferentially divided into at least two ring segments 5511, wherein the outer end surfaces of adjacent ring segments 5511 have different magnetic polarities.

Among them, the division of ring segments 5511 can be carried out according to certain rules. For example, when the outer end surface of the magnetic adsorption ring 551 is annular, the magnetic adsorption ring 551 can be divided into equal parts along the radial direction of the annular shape, for example, it can be divided into four equal parts to obtain four identical shapes and symmetrical distribution. a quarter-circle segment 5511; or it can also be randomly divided into multiple ring segments 5511 of different shapes, which is not specifically limited here.

Specifically, during actual use, the first contact surface 5531 and the second contact surface 5541 need to be in contact with the exposed surface of the corresponding terminal of the corresponding connector to establish an electrical connection between the magnetic connector 55 and the corresponding connector, thereby connecting the bone to the bone. Powered by conductive loudspeakers. When the first contact surface 5531 and the second contact surface 5541 are docked incorrectly with the exposed surface of the terminal in the corresponding connector, a correct electrical connection cannot be established between the magnetic connector 55 and the corresponding connector, and thus the connection cannot be made. Powers bone conduction speakers.

In this embodiment, the magnetic polarity of the outer end surface of each ring segment 5511 can be set according to the connection mode of the first contact surface 5531 and the second contact surface 5541 with the terminals in the corresponding connector, so that the first contact surface 5531 and the second contact surface When the contact surface 5541 is connected to the terminal of the corresponding connector correctly, the magnetic polarity of the outer end surface of the magnetic structure of the corresponding connector is consistent with and opposite to the magnetic polarity of the outer end surface of the corresponding ring segment 5511 of the magnetic connector 55, so that the two connectors have opposite properties. attract each other and butt together, thereby establishing a correct connection relationship between the two; and when the first contact surface 5531 and the second contact surface 5541 are connected to the corresponding terminals of the corresponding connector, the outer end surface of the magnetic structure of the corresponding connector The magnetic polarity is the same as the magnetic polarity of the outer end surface of the corresponding ring segment 5511 of the magnetic joint 55. Therefore, like objects repel each other and cannot be butt together, thereby avoiding the establishment of wrong connections and preventing the magnetic joint 55 from functioning normally. , improve the accuracy and efficiency of docking, and bring convenience to users.

In one embodiment, the magnetic adsorption ring 551 can be divided into two ring segments 5511 along the circumferential direction.

Specifically, the shape of the outer end surface of the magnetic adsorption ring 551 can be a regular symmetrical ring shape such as an elliptical ring, a circular ring, a rectangular ring, etc. as described in the above embodiment, so that it can be divided along the symmetry axis of the regular ring shape. It can be two ring segments 5511; or it can also be an irregular ring shape, and correspondingly divided into two asymmetric ring segments 5511. The details can be set according to the requirements, and are not specifically limited here.

In an application scenario, as shown in Figure 12, the number of the first contact surface 5531 and the second contact surface 5541 is one, and they are arranged side by side at intervals, respectively corresponding to the positive terminal and the negative terminal of the electronic device. The magnetic adsorption ring 551 may have 180-degree rotational symmetry with respect to the symmetry point, and the magnetic adsorption ring 551 may have different sizes in a first direction and a second direction that pass through the symmetry point and are perpendicular to each other. Specifically, the size of the magnetic adsorption ring 551 in the first direction is larger than the size in the second direction, and the shape of its outer end surface may be an elliptical ring. Further, the magnetic adsorption ring 551 can be divided into two side-by-side spaced ring segments 5511 along its axis of symmetry in the first direction or the second direction. The outer end surface of one ring segment 5511 is The magnetic polarity is N pole, and the magnetic polarity of the outer end surface of the other ring segment 5511 is S pole. Furthermore, the first contact surface 5531 and the second contact surface 5541 of the magnetic joint 55 are also arranged side by side and spaced apart, and are 180-degree rotationally symmetrical in shape with the symmetry point of the magnetic suction ring 551 as the symmetry point.

Correspondingly, the shape and number of the magnetic adsorption structures of the corresponding joint are consistent with the magnetic adsorption ring 551 of the magnetic joint 55 , while the magnetic polarity of the outer end surface is correspondingly opposite.

At this time, when the first contact surface 5531 and the second contact surface 5541 are correctly connected to the corresponding terminals in the corresponding connector, the two ring segments 5511 of the magnetic adsorption ring 551 and the magnetic adsorption structures in the corresponding connector are attracted by opposite properties. When the first contact surface 5531 and the second contact surface 5541 are incorrectly connected to the corresponding terminals in the corresponding connector, the magnetic polarity of the outer end surface of the magnetic connector 55 is the N-pole ring segment 5511 It corresponds to the N pole in the magnetic adsorption structure, and the ring segment 5511 whose magnetic polarity is S pole on the outer end surface corresponds to the S pole in the magnetic adsorption structure, so that same-sex repulsion occurs and cannot be docked together, thereby avoiding incorrect connections. User-friendly.

This application also provides a magnetic joint 55. The magnetic structure includes the specific structure of the magnetic joint 55 in the bone conduction speaker device as described above. The magnetic joint 55 can be used in the bone conduction speaker device of the present application. The power interface of the electronic device, or the power interface of the charger, is used to position and electrically connect the power interface of the electronic device and the power interface of the charger together through magnetic adsorption and the corresponding connectors used in conjunction with them, so as to connect them electrically. Power supply for electronic equipment. For the relevant structure and the technical effects that can be produced, please refer to the above-mentioned embodiments and will not be described again here.

This application also provides a magnetic joint 55 assembly. The magnetic joint 55 assembly includes two magnetic joints 55 in the above-mentioned magnetic joint 55 embodiment, wherein the number of ring segments 5511 on the two magnetic joints 55 and The shapes correspond to each other, and the magnetic polarities of the outer end surfaces of the corresponding ring segments 5511 are opposite to each other, so that when the corresponding ring segments 5511 are attracted to each other, the first contact surface 5531 and the second contact surface 5541 of the two magnetic joints 55 are respectively connected to each other. touch. For other relevant details, please refer to the above-mentioned implementation manner and will not be described again here.

It should be pointed out that through the above method, the magnetic polarity of the outer end surface of each ring segment 5511 of the two magnetic joints 55 can be set, so that the first contact surface 5531 and the second contact surface of the two magnetic joints 55 When 5541 are in contact with each other, the magnetic polarities of the outer end surfaces of the corresponding ring segments 5511 are uniformly opposite, so that the two magnetic joints 55 are butted together due to the attraction of opposite sexes, thereby establishing a correct connection relationship between the two; When the first contact surface 5531 and the second contact surface 5541 of one of the magnetic joints 55 correspond to the second contact surface 5541 and the first contact surface 5531 of the other magnetic joint 55 respectively, they correspond to the magnetic poles of the outer end surface of the ring segment 5511 If the two magnetic joints 55 are of the same sex, they cannot be docked together due to the repulsion of the same sex, thereby reducing the probability of establishing an incorrect connection between the two magnetic joints 55 and thereby improving the accuracy and efficiency of docking.

Furthermore, in the embodiment of the bone conduction speaker device in this application, the magnetic connector 55 can be disposed in a circuit housing 10 , specifically, it can be disposed in the circuit housing 10 for accommodating the control circuit 51 .

In one application scenario, two main side walls 11 of the circuit housing 10 are spaced apart from each other, and two blocking walls 19 are formed on the inner surface of at least one main side wall 11 and are spaced apart from each other. The two blocking walls 19 It can be arranged parallel to the end wall 13 of the circuit housing 10 . Among them, the two main side walls 11 and the two blocking walls 19 define an accommodating space. The accommodating space can be disposed close to an auxiliary side wall 12 , and the magnetic joint 55 is disposed in the accommodating space. in

The two main side walls 11 are further provided with assembly holes 113. The bone conduction speaker further includes two fixing parts 56. The two fixing parts 56 can be respectively inserted into the assembly holes 113 of the two main side walls 11 and removed from the magnet. Opposite sides of the suction joint 55 resist the magnetic suction joint 55 .

The number of mounting holes 113 and the number of fixing members 56 may be the same. Specifically, the fixing member 56 can be a screw, which passes through the assembly hole 113 from the outside of the main side wall 11 so that one end of the screw abuts the outer side wall of the magnetic joint 55 and the other end is fixed in the assembly hole 113 .

Furthermore, the central axes of the two fixing members 56 are parallel to each other and are spaced apart. Therefore, the central axes of the two fixing members 56 do not overlap, so that the magnetic connector 55 can be more firmly fixed in the circuit housing 10 .

In one application scenario, an assembly hole 113 is respectively provided on the two main side walls 11 , and the magnetic joint 55 surrounds the magnetic joint 55 relative to the two main side walls 11 and the two blocking walls 19 . The insertion direction of the accommodation space is 180 degrees rotationally symmetrical. Two assembly holes 55512 capable of receiving the fixing pieces 56 are provided on opposite sides of the magnetic joint 55. After the magnetic joint 55 is symmetrically rotated and inserted into the accommodation space, , one of the two assembly holes 55512 on each side of the magnetic connector 55 is aligned with the assembly hole 113 .

Specifically, the assembly hole 113 is used to receive the outer end of the fixing member 56, and the assembly hole 55512 is used to receive the inner end of the fixing member 56. The fixing member 56 penetrates the assembly hole 113 and the assembly hole 55512 at both ends, so that the assembly hole 113 and the assembly hole 55512 are connected. The magnetic joint 55 is fixed in the accommodation space surrounded by the two main side walls 11 and the two blocking walls 19 .

It should be pointed out that the magnetic joint 55 is 180-degree rotationally symmetrical, so that there are two corresponding assembly holes 55512 and assembly holes 113 before and after the 180-degree rotation, and thus the magnetic joint 55 can be attached to the magnetic joint under two relative positions. The suction joint 55 is fixed to facilitate assembly.

Further, the housing sheath 21 or the housing sheath 31 covers the assembly hole 113 provided on the main side wall 11 , and a magnetic connector is provided on the corresponding housing sheath 21 and/or the housing sheath 31 55 exposed exposed holes 57 for ease of use.

In one embodiment, the bone conduction speaker device further includes a button module 58 provided on the circuit housing 10 . Specifically, a recessed area 10c is provided on the outer surface of the circuit housing 10, and a key hole 10d located in the recessed area 10c and used to connect the inner surface and the outer surface of the circuit housing 10 is further provided.

The number of recessed areas 10c may be one or more, and one or more key holes 10d may be provided in each recessed area 10c, which is not limited here.

Further, the key module 58 further includes: an elastic bearing 581, a key 582 and a second key switch 583.

The elastic bearing 581 includes an integrally formed bearing body 5811, a contact head 5812 and a support column 5813. The bearing body 5811 is arranged in the recessed area 10c and is fixed at the bottom of the recessed area 10c. The support pillar 5813 is arranged on the bearing body. 5811 faces the outside of the circuit housing 10, and the contact head 5812 is disposed on the other side of the base body 5811 facing the inside of the circuit housing 10, and extends along the key hole 10d.

The elastic bearing 581 can be made of soft material, such as soft rubber, silicone, etc., and can be made of the same material as the housing sheath 21 and the housing sheath 31 .

Furthermore, in order to improve the pressing feel, the button 582 can be made of hard plastic and is disposed on an end of the support column 5813 facing the outside of the circuit housing 10 . Specifically, the button 582 and the support column 5813 can be fixed together through bonding, injection molding, elastic contact, etc.

The key switch 583 is disposed inside the circuit housing 10 and corresponds to the key hole 10d, so that when the pressing surface of the key 582 is pressed, the support column 5813 is driven and the contact head 5812 is further driven to pass through the key hole 10d and The key switch 583 is triggered to cause the bone conduction speaker device to perform corresponding functions.

In the above method, the elastic bearing 581 is arranged in the recessed area 10c and fixed at the bottom of the recessed area 10c. On the one hand, the button hole 10d provided in the recessed area 10c is covered by the bearing body 5811, so that the outside of the circuit housing 10 It is difficult for the liquid to enter the inside of the circuit case 10 through the key hole 10d, thereby waterproofing and protecting the internal components of the circuit case 10; on the other hand, because the elastic bearing 581 is elastic, the button is triggered through the contact head 5812 The switch 583 can make the contact pressure between the contact head 5812 and the key switch 583 have a certain elasticity, so that the triggering of the key switch 583 will not be too stiff, thereby providing a good tactile feeling when the user presses the key 582.

In one embodiment, the elastic bearing 581 can be fixed to the bottom of the recessed area 10c through the bearing body 5811 by adhesive or injection molding.

In one application scenario, the surface of the holder body 5811 facing the inside of the circuit housing 10 and the surface of the bottom of the recessed area 10c of the circuit housing 10 facing the outside of the circuit housing 10 are integrally formed by injection molding. Specifically, It can be formed by encapsulation.

In this application scenario, the elastic bearing 581 and the bottom of the recessed area 10c of the circuit housing 10 are integrally formed by injection molding, thereby making the connection between the two stronger, increasing the bonding strength between the two and improving the The sealing performance of the circuit housing 10 can, on the one hand, make the entire key module 58 more stable and reliable, and on the other hand, further improve the waterproof effect of the circuit housing 10 .

In one embodiment, the holder body 5811 specifically includes an annular fixing part 58111 and an elastic supporting part 58112.

The annular fixing portion 58111 is disposed around the key hole 10d and is attached and fixed to the bottom of the recessed area 10c, thereby fixing the elastic bearing 581 and the circuit housing 10 together.

The elastic support part 58112 is connected to the inner annular surface of the annular fixing part 58111 and bulges toward the outside of the circuit housing 10 in a dome shape, so that it has a certain height from the top to the bottom in the pressing direction of the button 582, and the top thereof The dimension perpendicular to the pressing direction is smaller than the base. Among them, the support pillar 5813 and the contact head 5812 are respectively provided on both sides of the top of the elastic support part 58112. When the key 582 is pressed, the top of the elastic support portion 58112 is pressed and moves toward the bottom thereof, thereby driving the key 582 to move toward the key hole 10d until the key switch 583 is triggered.

It should be pointed out that due to the small overall structure of the bone conduction speaker device and the tight connection between the components, the pressing stroke between the button 582 and the button switch 583 is small, thereby weakening the pressing tactile feeling of the button 582 . In this embodiment, since the elastic support portion 58112 is dome-shaped and bulges toward the outside of the circuit housing 10, the distance between the button 582 and the key switch 583 provided on the elastic support portion 58112 and facing outside the circuit housing 10 can be increased. , thereby increasing the pressing stroke of the button 582 , thereby improving the user's feeling of pressing the button 582 .

In one embodiment, the key 582 includes a key body 5821 and an annular flange 5822 and an annular flange 5823 provided on one side of the key body 5821 . Among them, the annular flange 5822 and the annular flange 5823 can be specifically disposed on the opposite side of the pressing surface of the key body 5821.

Specifically, the annular flange 5822 is located in the middle area of the key body 5821, the annular flange 5823 is located at the outer edge of the key body 5821, and both the annular flange 5822 and the annular flange 5823 protrude in a direction away from the pressing surface of the key body 5821. Formed, thereby forming an accommodating space surrounded by the annular flange 5822, and an accommodating space formed by the annular flange 5822 and the annular flange 5823. The protruding heights of the annular flange 5822 and the annular flange 5823 relative to the key body 5821 may be equal or different. In this embodiment, the protruding height of the annular flange 5822 relative to the key body 5821 is greater than the protruding height of the annular flange 5823 relative to the key body 5821 .

The support column 5813 is inserted into the accommodation space inside the annular flange 5822. Specifically, the support column 5813 can be fixed with the annular flange 5822 through bonding, injection molding or elastic contact.

Further, the end surface of the annular flange 5823 away from the key body 5821 is sunk in the recessed area 10c, and is spaced a certain distance from the bottom of the recessed area 10c when the elastic bearing 581 is in its natural state.

The bottom of the recessed area 10c refers to the inner wall surface of the recessed area 10c facing the inside of the circuit housing 10. Specifically, when the elastic support 581 is in the natural state, by pressing the pressing surface of the button 582, the top of the elastic support portion 58112 of the elastic support 581 moves in the direction toward the inside of the circuit housing 10 and moves on the annular flange. Before the end surface of 5823 away from the key body 5821 contacts the bottom of the recessed area 10c, the key switch 583 is triggered.

Further, the button 582 also includes a columnar extension arm 5824 disposed on one side of the button body 5821 and protruding toward the button hole 10d inside the annular flange 5822. The support column 5813 is provided with a receiving hole 58131, and the receiving hole 58131 faces the button. The hole 10d extends through the support column 5813 and reaches the contact head 5812. The columnar extension arm 5824 is further received in the receiving hole 58131 to support the elastic bearing 581. Therefore, when the button 582 is pressed and the contact head 5812 triggers the key switch 583, the cylindrical extension arm 5824 can be used to support the contact head 5812, so that the contact between the contact head 5812 and the key switch 583 will not be too soft. This further improves the pressing feel.

In one embodiment, the key hole 10d is provided on the auxiliary side wall 12 of the circuit housing 10, and the pressing direction of the key switch 583 is perpendicular to the auxiliary side wall 12 and parallel to the main side wall 11 of the circuit housing 10.

In this embodiment, the key module 58 and the control circuit 51 correspond to the same circuit housing 10. The control circuit 51 includes a control circuit board. The control circuit board is disposed inside the circuit housing 10 and is spaced apart from the main side wall 11. , specifically, the main surface of the control circuit board is arranged parallel to the main side wall 11 .

Among them, the key switch 583 is disposed on the main surface of the control circuit board. Specifically, it can be disposed on one end of the main surface close to the auxiliary side wall 12 of the circuit housing 10, so that the key switch 583 corresponds to the key hole 10d. When the key 582 is pressed, , driving the contact head 5812 to start the key switch 583 in a direction parallel to the main side wall 11 and then parallel to the main surface of the control circuit board.

Through the above method, firstly, the space on the auxiliary side wall 12 of the circuit housing 10 can be fully utilized. Secondly, the key switch 583 is disposed on one end of the main surface of the main control circuit board facing the key hole 10d, so that even if it is disposed on the main control circuit board, On the main surface of the control circuit board, the key switch 583 can still be triggered normally, so there is no need to specially set up a first key circuit board parallel to the auxiliary side wall 12 of the circuit housing 10, thereby reducing the need for the circuit housing 10 on the one hand. The occupation of internal space can also save costs on the other hand.

In one embodiment, the circuit housing 10 near the location of the button 582 can be covered by one of the housing sheath 21 and the housing sheath 31 , or both.

Wherein, the corresponding shell sheath is further provided with an exposure hole 59 that allows the button 582 to be exposed, so that when the shell sheath 21 and/or the shell sheath 31 is placed around the circuit shell 10, the button 582 passes through the exposed hole. Hole 59 is exposed.

In one embodiment, the inner surface of the shell sheath is integrally formed with an annular blocking wall 60 along the edge of the exposed hole. The annular blocking wall 60 extends along the side wall of the recessed area 10c to the inside of the recessed area 10c. Specifically, It is in contact with the side wall surface of the circuit housing 10 located in the recessed area 10c, and may further be in contact with the bottom wall surface of the recessed area 10c.

Further, a sealant can be provided between the outer peripheral surface of the annular blocking wall 60 and the side wall of the recessed area 10c to bond the outer peripheral surface of the annular blocking wall 60 and the side wall of the recessed area 10c together, thereby further The housing jacket 21 and/or the housing jacket 31 are fastened to the circuit housing 10 .

In one embodiment, the end of the first elastic metal wire of the earhook 20 facing the circuit housing 10 is injection-molded with a connector end 24 , and the earhook sheath 22 can be further injection-molded on a portion of the connector end 24 of the first elastic metal wire. outside, and a housing sheath 21 is integrally formed at the connector end 24. The plug end 24 is plugged and fixed with an end of the first circuit housing 10a facing the earhook 20. Further, the housing sheath 21 is wrapped around the first circuit housing from one end of the first circuit housing 10a. 10a, thereby realizing the connection between the earhook 20 and the first circuit housing 10a.

The connection method between the connector terminal 24 and the first circuit housing 10a may be the same as or different from the connection method between the connector terminal 33 of the rear hanger 30 and the first circuit housing 10a, and is not specifically limited here.

In one embodiment, a flexible circuit board 44 may also be provided in the core housing 41 of the bone conduction speaker device.

Specifically, the flexible circuit board 44 is provided with a plurality of welding pads 45 and two welding pads 46 . The two welding pads 46 and the plurality of welding pads 45 are located on the same side of the flexible circuit board 44 and are spaced apart. And the two soldering pads 46 are connected to the corresponding two soldering pads 45 of the plurality of soldering pads 45 through the flexible leads 47 on the flexible circuit board 44 . Further, the movement housing 41 also contains two external wires 48. One end of each external wire 48 is welded to the corresponding pad 46, and the other end is connected to the earphone core 42, so that the earphone core 42 passes through the outside. Wire 48 is connected to pad 46 .

The auxiliary function module can be mounted on the flexible circuit board 44 and connected to other pads in the plurality of pads 45 through the flexible leads 49 on the flexible circuit board 44 . The auxiliary function module may be a module other than the earphone core 42 for receiving auxiliary signals and performing auxiliary functions. For example, the auxiliary function module can be a microphone, a key switch, etc., which can be set according to actual needs.

Further, one end of the plurality of earhook wires 23 is welded to the flexible circuit board 44 provided in the circuit housing 10 or the control circuit board, and the other end enters the inside of the movement housing 41 and is connected with the flexible circuit board. Solder pad 45 on 44.

Among the plurality of earhook wires 23, one end of the two audio signal wires 231 located in the movement housing 41 is welded to the two pads 45 welded by the two flexible leads 47, and the other end can be directly or indirectly connected. On the control circuit board, the two soldering pads 45 are further connected to the earphone core 42 through the welding of the flexible lead 49 and the two soldering pads 46, and the welding of the two external wires 48 and the soldering pads 46, thereby supplying power to the earphone core 42. Pass audio signals.

One end of the at least two auxiliary signal wires 232 located in the movement housing 41 is welded to the pad 45 to which the flexible lead 49 is welded, and the other end can be directly or indirectly connected to the control circuit board, thereby supplying data to the control circuit 51 Pass the auxiliary signal received and converted by the auxiliary function module.

In the above method, a flexible circuit board 44 is provided in the movement housing 41, and corresponding soldering pads are further provided on the flexible circuit board 44, so that the earhook wires 23 enter the movement housing 41 and are welded to the corresponding welding pads. on the pads, and further connect the corresponding auxiliary function modules through the flexible leads 47 and 49 on the pads, thereby avoiding multiple earhook wires 23 being directly connected to the auxiliary function modules. The wiring in the movement housing 41 is complicated, so that the wiring arrangement can be optimized and the space occupied by the movement housing 41 can be saved; and multiple ear hook wires 23 are directly connected to the auxiliary function module When the earhook wire 23 is suspended in the movement housing 41, it is easy to cause vibration, thereby causing abnormal noise and affecting the sound quality of the earphone core 42. According to the above method, the earhook wire 23 is welded to the soft Further connecting the corresponding auxiliary function modules to the functional circuit board 44 can reduce the situation where wires hang and affect the quality of the earphone core 42, thereby improving the sound quality of the earphone core 42 to a certain extent.

In one embodiment, the auxiliary function module may include two microphones 432, namely a first microphone 432a and a second microphone 432b. Among them, both the first microphone 432a and the second microphone 432b can be MEMS (micro-electromechanical system) microphones 432, which have low operating current, relatively stable performance, and high-quality voice. The two microphones 432 can be arranged at different positions on the flexible circuit board 44 according to actual needs.

Among them, the flexible circuit board 44 includes a main circuit board 441 and a branch circuit board 442 and a branch circuit board 443 connected to the main circuit board 441. The branch circuit board 442 extends in the same direction as the main circuit board 441. The first microphone 432a is mounted on The branch circuit board 442 is at an end far away from the main circuit board 441. The branch circuit board 443 extends perpendicularly to the main circuit board 441. The second microphone 432b is mounted on the end of the branch circuit board 443 away from the main circuit board 441. A plurality of pads 45 It is disposed at the end of the main circuit board 441 away from the branch circuit board 442 and the branch circuit board 443 .

In one embodiment, the movement housing 41 includes a surrounding peripheral side wall 411 and a bottom end wall 412 connected to an end surface of the peripheral side wall 411 to form an accommodation space with an open end. The earphone core 42 is placed in the accommodation space through the open end, the first microphone 432a is fixed on the bottom end wall 412, and the second microphone 432b is fixed on the peripheral side wall 411.

In this embodiment, the branch circuit board 442 and/or the branch circuit board 443 can be bent appropriately to adapt to the position of the sound inlet corresponding to the microphone 432 on the movement housing 41 . Specifically, the flexible circuit board 44 can be disposed in the core housing 41 in such a manner that the main circuit board 441 is parallel to the bottom end wall 412, so that the first microphone 432a can correspond to the bottom end wall 412 without the need to modify the main circuit board. 441 for bending. Since the second microphone 432b is fixed on the peripheral side wall 411 of the movement housing 41, the second main circuit board 441 needs to be bent. Specifically, the branch circuit board 443 can be placed at an end away from the main circuit board 441. The bending arrangement is such that the board surface of the branch circuit board 443 is perpendicular to the board surfaces of the main circuit board 441 and the branch circuit board 442, and thereby the second microphone 432b is fixed in a direction away from the main circuit board 441 and the branch circuit board 442. on the peripheral side wall 411 of the movement housing 41 .

In one embodiment, the soldering pad 45, the soldering pad 46, the first microphone 432a and the second microphone 432b can all be disposed on the same side of the flexible circuit board 44, and the soldering pad 46 is disposed adjacent to the second microphone 432b.

Among them, the bonding pad 46 can be specifically disposed at the end of the branch circuit board 443 away from the main circuit board 441, and is oriented in the same direction as the second microphone 432b and spaced apart, so that it is perpendicular to the direction of the bonding pad 45 as the branch circuit board 443 bends. Orientation. It should be pointed out that after bending, the board surface of the branch circuit board 443 may not be perpendicular to the board surface of the main circuit board 441, which may be determined based on the arrangement between the peripheral side wall 411 and the bottom end wall 412.

Further, the other side of the flexible circuit board 44 is provided with a rigid support plate 4a for supporting the pad 45 and a microphone rigid support plate 4b. The microphone rigid support plate 4b includes a rigid support plate 4b1 for supporting the first microphone 432a. and a rigid support plate 4b2 for jointly supporting the pad 46 and the second microphone 432b.

Among them, the rigid support plate 4a, the rigid support plate 4b1 and the rigid support plate 4b2 are mainly used to support the corresponding pads and the microphone 432, and therefore need to have a certain strength. The materials of the three can be the same or different. Specifically, they can be polyimide (Polyimide Film, PI), or other materials that can provide strength support, such as polycarbonate, polyvinyl chloride, etc. In addition, the thickness of the three rigid support plates can be set according to the strength of the rigid support plates themselves and the actual required strengths of the pads 45 and 46 as well as the first microphone 432a and the second microphone 432b, which is not done here. Specific limitations.

Among them, the rigid support plate 4a, the rigid support plate 4b1 and the rigid support plate 4b2 can be three different regions of a whole rigid support plate, or they can also be three independent wholes spaced apart from each other, which are not specifically limited here.

In one embodiment, the first microphone 432a and the second microphone 432b respectively correspond to the two microphone components 4c. In one embodiment, the two microphone assemblies 4c have the same structure, and the movement housing 41 is provided with a sound inlet 413. Furthermore, the bone conduction speaker device is also provided with an integrally formed inlet 413 at the movement housing 41. The annular blocking wall 414 on the inner surface of the movement housing 41 is arranged on the periphery of the sound inlet 413 to define an accommodation space 415 connected with the sound inlet 413 .

Further, the microphone assembly 4c also includes: a waterproof membrane assembly 4c1.

Among them, the waterproof membrane component 4c1 is arranged in the accommodation space 415 and covers the sound inlet 413; the microphone rigid support plate 4b is arranged in the accommodation space 415 and is located on the side of the waterproof membrane assembly 4c1 away from the sound inlet 413. In order to press the waterproof membrane component 4c1 on the inner surface of the movement housing 41, further, the microphone rigid support plate 4b is provided with a sound inlet 4b3 corresponding to the sound inlet 413. Further, the microphone 432 is disposed on the side of the microphone rigid support plate 4b away from the waterproof membrane component 4c1 and covers the sound inlet 4b3.

Among them, the waterproof membrane component 4c1 has a waterproof and sound-permeable function, and is closely attached to the inner surface of the movement housing 41 to prevent liquid outside the movement housing 41 from entering the inside of the movement housing 41 through the sound inlet 413. Affects the performance of microphone 432.

The axial directions of the sound inlet 4b3 and the sound inlet 413 may coincide with each other, or they may intersect at a certain angle according to the actual needs of the microphone 432 and the like.

The microphone rigid support plate 4b is disposed between the waterproof membrane component 4c1 and the microphone 432. On the one hand, it presses the waterproof membrane component 4c1 so that the waterproof membrane component 4c1 is closely attached to the inner surface of the movement housing 41; on the other hand, , the microphone rigid support plate 4b has a certain strength, thereby supporting the microphone 432.

Specifically, the material of the microphone rigid support plate 4b can be polyimide (Polyimice Film, PI), or other materials that can provide strength support, such as polycarbonate, polyvinyl chloride, etc. In addition, the thickness of the microphone rigid support plate 4b can be set according to the strength of the microphone rigid support plate 4b and the actual required strength of the microphone 432, and is not specifically limited here.

In one embodiment, the waterproof membrane module 4c1 includes a waterproof membrane body 4c11 and an annular rubber gasket 4c12. The annular rubber pad 4c12 is disposed on the side of the waterproof membrane body 4c11 facing the microphone rigid support plate 4b, and is further disposed on the periphery of the sound inlet 413 and the sound inlet 4b3.

Among them, the microphone rigid support plate 4b is pressed against the annular rubber pad 4c12, so that the waterproof membrane component 4c1 and the microphone rigid support plate 4b are bonded and fixed together.

In one application scenario, the annular rubber gasket 4c12 is arranged to form a sealed cavity between the waterproof membrane body 4c11 and the rigid support plate that is only connected to the microphone 432 through the sound inlet 4b3, that is, the waterproof membrane assembly 4c1 and the microphone rigid support plate 4b There is no gap left in the connection between them, so that the space around the annular rubber pad 4c12 between the waterproof membrane body 4c11 and the microphone rigid support plate 4b is isolated from the sound inlet 4b3.

Specifically, the waterproof membrane body 4c11 can be a waterproof sound-permeable membrane, which is equivalent to the eardrum of the human ear. When external sound enters through the sound inlet 413, the waterproof membrane body 4c11 vibrates, causing the air pressure in the sealed cavity to change, causing the microphone 432 to emit sound.

Furthermore, when the waterproof membrane body 4c11 vibrates, the air pressure in the sealed cavity changes, and the air pressure needs to be controlled within an appropriate range. If it is too large or too small, it will affect the sound quality. In this embodiment, the distance between the waterproof membrane body 4c11 and the rigid support plate can be 0.1-0.2mm, specifically 0.1mm, 0.15mm, 0.2mm, etc., so that the sealing cavity caused by the vibration of the waterproof membrane body 4c11 The air pressure changes within the appropriate range, thereby improving the sound quality.

In one embodiment, the waterproof membrane assembly 4c1 further includes an annular rubber pad 4c13 disposed on the inner surface side of the waterproof membrane body 4c11 facing the movement housing 41 and overlapping the annular rubber pad 4c12.

In this way, the waterproof membrane component 4c1 can be closely attached to the inner surface of the movement housing 41 around the sound inlet hole 413, thereby reducing the loss of sound entering through the sound inlet hole 413 and improving the conversion of sound into a waterproof membrane. The conversion rate of the vibration of body 4c11.

Among them, the annular rubber pad 4c12 and the annular rubber pad 4c13 can be double-sided tape or sealant respectively.

In an application scenario, sealant can be further coated on the periphery of the annular baffle wall 414 and the microphone 432 to further improve the sealing performance, thereby improving the sound conversion rate and thereby improving the sound quality.

In one embodiment, the flexible circuit board 44 can be disposed between the rigid support plate and the microphone 432, and is provided with a sound inlet 444 at a position corresponding to the sound inlet 4b3 of the microphone rigid support plate 4b, thereby allowing external sounds to The resulting vibration of the waterproof membrane body 4c11 passes through the sound inlet 444 and further affects the microphone 432.

Further, the flexible circuit board 44 further extends in a direction away from the microphone 432 to be connected with other functional components or wires to implement corresponding functions. Correspondingly, the microphone rigid support plate 4b also extends a distance away from the microphone 432 along with the flexible circuit board.

Correspondingly, a notch matching the shape of the flexible circuit board is provided on the annular blocking wall 414 to allow the flexible circuit board to extend out from the accommodating space 415 . In addition, the gap can be further filled with sealant to further improve the sealing performance.

Further, in one embodiment, the speaker assembly 40 further includes a key module 4d. The auxiliary function module mounted on the flexible circuit board 44 includes a key switch 431. The key switch 431 and the above-mentioned microphone 432 are respectively provided in different circuits. inside the housing 10. Of course, in other embodiments, they can also be arranged in the same circuit housing 10, and there is no specific limitation here.

Correspondingly, the flexible circuit board 44 may include a main circuit board 445 and a branch circuit board 446, wherein the branch circuit board 446 may extend along an extension direction perpendicular to the main circuit board 445. A plurality of welding pads 45 are provided at the end of the main circuit board 445 away from the branch circuit board 446 , the key switch is mounted on the main circuit board 445 , and the welding pads 46 are provided at the end of the branch circuit board 446 away from the main circuit board 445 .

In this embodiment, the board surface of the flexible circuit board 44 is spaced parallel to the bottom end wall 412 , so that the key switch can be disposed toward the bottom end wall 412 of the movement housing 41 .

Correspondingly, the key switch is disposed on the side of the flexible circuit board 44 facing the bottom end wall 412. To facilitate assembly, the soldering pads 45 and 46 can be disposed on the side of the flexible circuit board 44 away from the bottom end wall 412. , so that the soldering pads 45 and 46 and the key switches are respectively disposed on both sides of the flexible circuit board 44 . It should be pointed out that the arrangement between the soldering pads 45 and 46 and the flexible leads 47 and 49 in this embodiment is the same as the arrangement of the microphone 432 in the above embodiment, and will not be described again here.

The main circuit board 445 is provided with a rigid support plate 4d3 on the side away from the key switch for supporting the key switch and keeping the pad 45 exposed, and on the side far away from the pad 45 is provided for supporting the pad 45 and keeping the key switch exposed. The branch circuit board 446 is provided with a rigid support plate 4e on a side away from the bonding pad 46 for supporting the bonding pad 46.

Among them, the material of the rigid support plate 4d3, the rigid support plate 4e and the rigid support plate 4f here can be the same. Specifically, the materials and functions of the rigid support plate 4a, the rigid support plate 4b1 and the rigid support plate 4b2 in the above embodiment can be The same as above. For relevant details, please refer to the above implementation manner and will not be described again here. Furthermore, the thickness of the rigid support plates 4d3, 4e and 4f can be determined according to their own strength and the support strength required by the corresponding key switches, the pads 45 and 46.

The key switch 431 and the pad 45 can be respectively disposed on both sides of the main circuit board 445 and spaced apart from both sides of the main circuit board 445 . Correspondingly, the rigid support plate 4d3 corresponding to the key switch 431 and the rigid support plate 4e corresponding to the pad 45 are also respectively provided on both sides of the main circuit board 445, and further bypass the key switch 431 and the pad 45 respectively, thereby So that the two have adjacent edges arranged adjacently.

Because, if the adjacent edges of the rigid support plate 4d3 and the rigid support plate 4e are spaced on the flexible circuit board 44, only the flexible circuit board 44 is provided in the space between the adjacent edges, and because the flexible circuit The strength of the board 44 is relatively small, while the strength of the rigid support plate is relatively large, so that the flexible circuit board 44 in the interval area is easily broken when the flexible circuit board 44 is repeatedly bent.

In this embodiment, the projections of the adjacent edges of the rigid support plate 4d3 and the rigid support plate 4e on the flexible circuit board 44 overlap each other, so that no interval is provided between the adjacent edges of the two, or only a partial interval is provided, so that The occurrence of the above situation is reduced to protect the flexible circuit board 44 .

Among them, a rigid support plate 4d4 may be further provided on the side of the rigid support plate 4d3 away from the flexible circuit board 44, and the rigidity of the rigid support plate 4d4 is greater than that of the rigid support plate 4d3.

The rigid support plate 4d3 corresponds to the key switch 431, and the key switch 431 will be repeatedly pressed by the user during use, so it needs to be supported with higher strength. In this embodiment, the material of the rigid support plate 4d4 may be stainless steel, or other materials with higher strength than the material of the rigid support plate 4d3. Specifically, the rigid support plate 4d3 and the rigid support plate 4d4 can be formed together by hot pressing.

In one embodiment, a recessed area 4121 is provided on the inner surface of the movement housing 41 , specifically the inner surface of the bottom end wall 412 , and is further provided with a recessed area 4121 located in the recessed area 4121 and used to communicate with the inner surface of the movement housing 41 . Keyhole 4122 on the surface and outer surface. The recessed area 4121 is formed by the inner surface of the movement housing 41 being recessed toward the outside of the movement housing 41 . The key hole 4122 can be further disposed in the middle of the recessed area 4121, or in other positions according to actual requirements.

Further, the key module 4d also includes an elastic bearing 4d1 and a key 4d2.

Among them, the elastic bearing 4d1 includes an integrally formed bearing body 4d11 and a support column 4d12. Among them, the holder body 4d11 is disposed in the recessed area 4121 and fixed to the bottom of the recessed area 4121. Specifically, the bottom of the recessed area 4121 refers to the inner wall surface of the recessed area 4121 away from the interior of the movement housing 41 . The support column 4d12 is provided on the side of the base body 4d11 facing the outside of the movement housing 41, and is exposed from the key hole 4122.

The elastic bearing 4d1 can be made of soft material, such as soft rubber, silicone, etc., and can be made of the same material as the housing sheath 21 and the housing sheath 31. In order to improve the pressing feel, the button 4d2 can be made of hard plastic and disposed on the portion of the support column 4d12 exposed to the button hole 4122. Specifically, the button 4d2 and the support column 4d12 can be fixed together through bonding, injection molding, elastic contact, etc.

In the above method, the elastic bearing 4d1 is arranged in the recessed area 4121 and fixed at the bottom of the recessed area 4121, and covers the key hole 4122 from the inside side of the movement housing 41 through the bearing body 4d11 to secure the movement housing. The inside of the body 41 is separated from the outside, so that it is difficult for the liquid outside the movement housing 41 to enter the inside of the movement housing 41 through the key hole 4122, thereby waterproofing and protecting the internal components of the movement housing 41. .

In one application scenario, the elastic bearing 4d1 can be fixed to the bottom of the recessed area 4121 through the bearing body 4d11 in an adhesive manner. Specifically, the elastic bearing 4d1 can be fixed on the surface of the bearing body 4d11 facing the outside of the movement housing 41 and the recessed area. Apply adhesive, double-sided tape, etc. between the bottoms of 4121 to stick them together.

In one application scenario, the bearing body 4d11 can be fixed on the bottom of the recessed area 4121 through injection molding. The surface of the base body 4d11 facing the outside of the movement housing 41 and the bottom of the recessed area 4121 of the movement housing 41 are integrally formed by injection molding. Specifically, they can be formed by encapsulation. In this application scenario, the elastic bearing 4d1 and the bottom of the recessed area of the movement housing 41 are integrally formed by injection molding, thereby making the combination between the two stronger, increasing the bonding strength between the two, and enabling Improving the sealing performance of the movement housing 41 can, on the one hand, make the entire key module 4d more stable and reliable, and on the other hand, further improve the waterproof effect of the movement housing 41 .

In one embodiment, the holder body 4d11 includes an annular fixing part 4d111 and an elastic support part 4d112. The annular fixing portion 4d111 is arranged around the key hole 4122 and is fixed to the bottom of the recessed area 4121, thereby fixing the elastic bearing 4d1 and the movement housing 41 together.

The elastic support portion 4d112 is connected to the inner annular surface of the annular fixing portion 4d111 and bulges in a dome shape toward the outside of the movement housing 41, so that it has a certain height from the top to the bottom in the pressing direction of the button 4d2, and its The top is smaller in dimension perpendicular to the pressing direction than the bottom. Among them, the support column 4d12 is provided on the top of the elastic support part 4d112. When the key 4d2 is pressed, the top of the elastic support portion 4d112 is pressed and moves toward the bottom thereof, thereby driving the key 4d2 to move toward the key hole 4122 until the key switch 431 is triggered.

It should be pointed out that due to the small overall structure of the bone conduction speaker device and the tight connection between the components, the pressing stroke between the button 4d2 and the button switch 431 is smaller, thereby weakening the pressing touch of the button 4d2. In this embodiment, since the elastic support portion 4d112 bulges in a dome shape toward the outside of the movement housing 41, the distance between the button 4d2 and the key switch 431 inside the movement housing 41 can be increased, and thus the distance can be appropriately increased. The key 4d2 triggers the pressing stroke of the key switch 431, thereby improving the user's feeling of pressing the key 4d2.

Specifically, the bottom of the elastic support part 4d112 is fixed on the side wall surface of the key hole 4122, so that the top of the elastic support part 4d112 is exposed from the key hole 4122, and then the end of the elastic support part 4d112 facing the outside of the movement housing 41 is exposed. The support column 4d12 is completely exposed outside the movement housing 41, and is further fixed with the button 4d2 outside the movement housing 41.

In one embodiment, a recessed area 4123 is provided on the outer surface of the movement housing 41 , and the key hole 4122 is further located in the recessed area 4123 . That is, the recessed area 4121 and the recessed area 4123 are respectively located at both ends of the key hole 4122 and are penetrated by the key hole 4122. The shapes, sizes, etc. of the recessed area 4121 and the recessed area 4123 can be set to be the same or different according to actual needs. In addition, the number of recessed areas 4121 and 4123 can be the same. The number of the two can be determined according to the number of keys 4d2, which can be one or more. One or more recessed areas 4121 and 4123 can be provided correspondingly. There are 4122 key holes, which are not specifically limited here. In this embodiment, the number of buttons 4d2 corresponding to the movement housing 41 is one, and corresponds to one recessed area 4121 and one recessed area 4123.

Among them, the support column 4d12 is supported by the elastic support part 4d112 until the side of the key hole 4122 facing the outside of the movement housing 41 is located in the recessed area 4123. Further, the button 4d2 is provided on the side of the elastic support part 4d112 of the support column 4d12, In this embodiment, by setting the height of the elastic support portion 4d112 and the support column 4d12 along the pressing direction of the button 4d2, the button 4d2 is at least partially sunk in the recessed area 4123, thereby improving space utilization and reducing the pressure of the button module 4d. occupied space.

In one embodiment, the key 4d2 includes a key body 4d21 and an annular flange 4d22 and an annular flange 4d23 provided on one side of the key body 4d21. Specifically, the annular flange 4d22 and the annular flange 4d23 may be disposed on the opposite side of the pressing surface of the key body 4d21.

Specifically, the annular flange 4d22 is located in the middle area of the key body 4d21, the annular flange 4d23 is located at the outer edge of the key body 4d21, and both the annular flange 4d22 and the annular flange 4d23 protrude in a direction away from the pressing surface of the key body 4d21. Formed, thereby forming a columnar accommodation space 4d24 surrounded by the annular flange 4d22, and an annular columnar accommodation space 4d25 formed by the annular flange 4d22 and the annular flange 4d23. The protruding heights of the annular flange 4d22 and the annular flange 4d23 relative to the key body 4d21 may be equal or different. In this embodiment, the protruding height of the annular flange 4d22 relative to the key body 4d21 is greater than the protruding height of the annular flange 4d23 relative to the key body 4d21.

Among them, the support column 4d12 is inserted inside the annular flange 4d22, that is, it is accommodated in the accommodation space 4d24. Specifically, the support column 4d12 can be fixed with the annular flange 4d22 through bonding, injection molding or elastic contact. .

Furthermore, the end surface of the annular flange 4d23 away from the key body 4d21 is sunk in the recessed area 4123, and is spaced a certain distance from the bottom of the recessed area 4123 when the elastic bearing 4d1 is in its natural state.

The bottom of the recessed area 4123 refers to the inner wall surface of the recessed area 4123 facing the inside of the movement housing 41 . Specifically, when the elastic bearing 4d1 is in the natural state, by pressing the pressing surface of the button 4d2, the top of the elastic support portion 4d112 of the elastic bearing 4d1 moves in the direction toward the inside of the movement housing 41, and moves on the annular convex The key switch 431 is triggered before the end surface of the edge 4d23 away from the key body 4d21 contacts the bottom of the recessed area 4123.

In one embodiment, the elastic bearing 4d1 further includes a contact head 4d13 for contacting the key switch 431. The contact head 4d13 can be disposed on the side of the bearing body 4d11 close to the inside of the movement housing 41. Specifically, it can be disposed on the elastic support. The middle area of the top of the portion 4d112 facing the inner wall surface of the movement housing 41 is protruding relative to the inner wall surface toward the inside of the movement housing 41.

When the button 4d2 is pressed, the top of the elastic support portion 4d112 of the elastic bearing 4d1 moves in the direction toward the inside of the movement housing 41, thereby driving the contact head 4d13 to move toward the key switch 431 inside the movement housing 41, thereby passing the The contact head 4d13 triggers the key switch 431, thereby realizing the corresponding function. In this way, the pressing stroke of the button 4d2 can be reduced according to actual needs.

In one embodiment, the speaker assembly 40 is connected to the earhook 20 through the movement housing 41 , and the button module 4d is centrally located relative to the speaker assembly 40 or is disposed at the proximal end 4g of the speaker assembly 40 close to the top end 25 of the earhook.

The top end of the earhook 25 refers to the top part of the earhook 20 when the user wears the bone conduction speaker device, corresponding to the top of the user's ear.

When the user wears the bone conduction speaker device, the top end of the earhook 25 fits the head well, and the vibration of the speaker assembly 40 can be regarded as taking the top end of the earhook 25 as a fixed point, and the vibration between the top end of the earhook 25 and the speaker assembly 40 The part of the earhook 20 acts as an arm for reciprocating swing. Among them, the amplitude of the swing of the speaker assembly 40 (ie, vibration acceleration) is positively correlated with the volume generated by it. The mass distribution of the speaker assembly 40 has a significant impact on the amplitude of its reciprocating swing, which in turn affects the volume generated by the speaker assembly 40 .

In this embodiment, the arrangement of the key module 4d on the speaker assembly 40 will affect the mass distribution of the speaker assembly 40, and thereby affect the volume generated by it. Specifically, from the principle of dynamics, it can be concluded that when the button 4d2 is arranged at the far end 4h from the earhook top 25, the vibration acceleration of the speaker assembly 40 will be smaller than the vibration when the button module 4d is arranged at the proximal end 4g from the earhook top 25. acceleration, causing the volume to drop.

Correspondingly, in this embodiment, the key module 4d is arranged centrally relative to the speaker assembly 40 or is disposed at the proximal end 4g of the speaker assembly 40 close to the earhook top 25, thereby increasing the vibration acceleration of the speaker assembly 40, thereby improving the performance of the speaker assembly. 40 volume.

Among them, the projection of the open end of the movement housing 41 on the plane α where the outer side 4d26 of the button 4d2 is located includes the proximal edge p close to the earhook top 25 and the distal edge q away from the earhook top 25, where the button 4d2 The shortest distance h1 from the proximal edge p is not greater than the shortest distance h2 between the button 4d2 and the far edge q.

The outer surface 4d26 of the key 4d2 refers to the plane where the surface of the key 4d2 away from the key hole 4122 is located. Further, the projection of the open end on the plane where the outer side 4d26 of the button 4d2 is located covers the button 4d2.

The shortest distance h1 between the button 4d2 and the proximal edge p is the shortest distance between the side of the button 4d2 close to the earhook top 25 and the proximal edge p close to the earhook top 25; accordingly, the shortest distance h1 between the button 4d2 and the far side The shortest distance h2 between the end edges q is the shortest distance between the side of the button 4d2 away from the earhook top 25 and the side of the distal edge q away from the earhook top 25.

Wherein, the size relationship between the shortest distance h1 between the button 4d2 and the proximal edge p and the shortest distance h2 between the button 4d2 and the distal edge q corresponds to the button 4d2 being located at the proximal end 4g close to the earhook top 25, or Center, or set closer to the far end 4h.

Specifically, when the shortest distance h1 between the button 4d2 and the proximal edge p is less than the shortest distance h2 between the button 4d2 and the distal edge q, the button 4d2 is located at the proximal end 4g of the earhook top 25, and with the button As the difference between the shortest distance h1 between 4d2 and the proximal edge p and the shortest distance h2 between the button 4d2 and the distal edge q increases, the closer the button 4d2 is to the top 25 of the earhook; When the two are equal, the button 4d2 is in the central setting.

In one embodiment, the button 4d2 is arranged axially symmetrically with respect to two symmetry directions perpendicularly crossing each other, wherein the size s1 of the button 4d2 in the long axis direction of the two symmetry directions is larger than the size s1 of the button 4d2 in the two symmetry directions. Dimension s2 in the short axis direction.

Specifically, the shape of the button 4d2 may be an ellipse, a rectangle, etc. In this embodiment, the directions of the long axis and the short axis of the button 4d2 are not specifically limited. For example, the long axis can be located in the connection direction between the earhook 20 and the movement housing 41, or perpendicular to the connection direction between the earhook 20 and the machine core. The connection direction of the core housing 41, or other directions, etc.

In one embodiment, the angle θ between the projection of the central axis extension r of the connecting portion of the earhook 20 and the speaker assembly 40 on the plane where the outer side 4d26 of the button 4d2 is located and the long axis direction is less than 10°, Specifically, it can be 9°, 7°, 5°, 3°, 1°, etc., and there is no specific limit here.

The extension line r of the central axis of the connecting portion of the earhook 20 and the speaker assembly 40 may be parallel to the connection direction of the earhook 20 and the speaker assembly 40 .

When the angle θ between the projection of the extension line r on the plane where the outer surface 4d26 of the button 4d2 is located and the long axis direction is less than 10°, the long axis direction of the button 4d2 will not deviate too much from the extension of the extension line r. direction, so that the long axis direction of the button 4d2 is consistent or nearly consistent with the direction of the extension line r of the central axis.

In one embodiment, the shortest distance d between the projection of the extension line r of the central axis of the earhook 20 on the plane where the outer side 4d26 of the button 4d2 is located and the intersection of the long axis direction and the short axis direction is smaller than the distance between the two sides of the button 4d2. The dimension s2 in the minor axis direction in the symmetry direction of the earhook 20 is such that the button 4d2 is close to the extension r of the central axis of the earhook 20 . In one application scenario, the projection of the extension line r of the central axis of the earhook 20 on the plane where the outer side 4d26 of the button 4d2 is located can coincide with the long axis direction to further improve the sound quality of the speaker assembly 40.

In one embodiment, there is a first distance L1 between the center of mass m1 or the center of mass of the key module 4d and the top end of the earhook 25, and the center of mass m2 or the center of mass of the rest of the speaker assembly 40 except the key module 4d is between There is a second distance L2 between them. In this embodiment, the mass distribution of the speaker assembly 40 of the key module 4d is relatively uniform. Therefore, it can be considered that the center of mass m1 of the key module 4d coincides with the centroid, and the center of mass m2 of the speaker assembly 40 also coincides with the centroid.

The mass distribution of the key module 4d can be reflected as the ratio between the first distance L1 and the second distance L2, and the mass ratio k of the mass of the key module 4d to the rest of the speaker assembly 40 except the key module 4d. Specifically, when the mass of the key module 4d is constant, as the ratio between the first distance L1 and the second distance L2 increases, the vibration acceleration of the speaker assembly 40 decreases, which in turn causes the volume to decrease; while in the first When the ratio between the distance L1 and the second distance L2 is constant, as the mass of the key module 4d increases, the vibration acceleration of the bone conduction speaker decreases, which in turn causes the volume to decrease. Therefore, the volume reduction caused by the setting of the key module 4d can be controlled within Within the range that the human ear can recognize.

In one application scenario, the ratio between the first distance L1 and the second distance L2 may not be greater than 1.

Specifically, when the ratio between the first distance L1 and the second distance L2 is equal to 1, the center of mass m1 and the center of mass of the key module 4d coincide with the center of mass m2 and the center of mass of the speaker assembly 40, so that the key module 4d is The speaker assembly 40 is centrally arranged; when the ratio between the first distance L1 and the second distance L2 is less than 1, the center of mass m1 and the center of mass of the button module 4d are closer to the top 25 of the earhook than the center of mass m2 and the center of mass of the speaker assembly 40 position, thereby being disposed at the proximal end 4g of the speaker assembly 40 close to the top end 25 of the earhook. Moreover, the smaller the ratio between the first distance L1 and the second distance L2 is, the closer the center of mass m1 and the center of mass of the key module 4 d are to the top end 25 of the earhook relative to the center of mass m2 and the center of mass of the speaker assembly 40 .

Further, the ratio between the first distance L1 and the second distance L2 may be no more than 0.95, so that the key module 4d is closer to the earhook top 25 . Among them, the ratio between the first distance L1 and the second distance L2 can also be 0.9, 0.8, 0.7, 0.6, 0.5, etc., which can be set according to the requirements, and is not limited here.

Further, when the ratio between the first distance L1 and the second distance L2 satisfies the above range, the mass ratio of the key module 4d to the mass ratio of the rest of the speaker assembly 40 except the key module 4d may not be greater than 0.3. Specifically, it may be Not greater than 0.29, 0.23, 0.17, 0.1, 0.06, 0.04, etc., there is no limit here.

Among them, the key module 4d in this application can be provided on only one speaker assembly 40. In one embodiment, the number of the key modules 4d is two, which are respectively provided on the two speaker assemblies 40. In this case, there are two The volume of the speaker assembly 40 decreases, making it easier for the human ear to detect. At this time, the mass ratio of the key module 4d to the rest of the speaker assembly 40 except the key module 4d may not be greater than 0.1, such as 0.1, 0.6, 0.4, etc.

In one embodiment of the bone conduction speaker device of the present application, the earphone core 42 of the bone conduction speaker device is a bone conduction earphone core 42. Specifically, the bone conduction earphone core 42 includes a bracket 421, a coil 422 and an external wire 48.

Among them, the bracket 421 is the shell of the earphone core 42 and is used to support and protect the entire earphone core 42 structure. In this embodiment, the bracket 421 is provided with a buried wire slot 4211, which can be used to accommodate the wires of the earphone core 42.

The coil 422 can be disposed on the bracket 421 and has at least one internal lead 423 that is connected to the main circuit in the coil 422 to lead out the main circuit and transmit audio current to the coil 422 through the internal lead 423.

The external wire 48 is used to connect with the internal wire 423. Further, the external wire 48 can be connected to the control circuit 51 to transmit audio current to the coil 422 through the control circuit 51 through the internal wire 423.

Specifically, during the assembly stage, the external wire 48 and the internal lead 423 need to be connected together by welding or other methods. Due to limitations of structural factors and other factors, after the welding is completed, the length of the wire cannot be exactly the same as the length of the channel. Usually, There is excess length of line. If the excess length of wire cannot be properly placed, it will vibrate with the vibration of the coil 422, causing abnormal noise and affecting the sound quality emitted by the earphone core 42.

Further, at least one of the outer lead 48 and the inner lead 423 can be wound and arranged in the buried wire groove 4211. In one application scenario, the welding position between the inner lead 423 and the outer lead 48 can be set in the buried wire. In the groove 4211, the parts of the outer wire 48 and the inner lead 423 located near the welding position are wound in the buried wire groove 4211. In addition, in order to maintain stability, sealant can be further filled in the buried wire trench 4211 to fix the wiring in the buried wire trench 4211.

In the above method, a buried wire slot 4211 is provided on the bracket 421, so that at least one of the external wire 48 and the internal lead 423 is wound and arranged in the buried wire slot 4211 to accommodate the excess length of the wire, thereby weakening its presence in the channel. The vibration generated thereby reduces the impact on the sound quality emitted by the earphone core 42 due to abnormal noise caused by the vibration.

In one embodiment, the bracket 421 includes an annular body 4212, a support flange 4213, and an outer blocking wall 4214. Among them, the annular main body 4212, the supporting flange 4213 and the outer blocking wall 4214 can be obtained by integral molding.

Among them, the annular body 4212 is disposed inside the entire bracket 421 for supporting the coil 422 . Specifically, the cross section of the annular body 4212 in the direction perpendicular to the annular radial direction is consistent with the coil 422. The coil 422 is disposed at an end of the annular body 4212 facing the inside of the movement housing 41, and the inner wall of the annular body 4212 and the outer side wall can be flush with the inner side wall and the outer side wall of the coil 422 respectively, so that the inner side wall of the coil 422 is coplanar with the inner side wall of the annular body 4212, and the outer side wall of the coil 422 is coplanar with the outer side wall of the annular body 4212. set up.

Further, the support flange 4213 protrudes from the outer side wall of the annular body 4212 and extends to the outside of the annular body 4212. Specifically, it may extend outward in a direction perpendicular to the outer side wall of the annular body 4212. The support flange 4213 can be disposed between two ends of the annular body 4212 . In this embodiment, the support flange 4213 can protrude around the outer wall of the annular body 4212 to form an annular support flange 4213. In other embodiments, protrusions may also be formed on only part of the outer wall of the annular body 4212 according to requirements.

The outer blocking wall 4214 is connected to the supporting flange 4213 and is spaced apart from the annular body 4212 along the lateral direction of the annular body 4212 . Among them, the outer blocking wall 4214 can be set at intervals around the periphery of the annular body 4212 and/or the coil 422. Specifically, according to actual needs, part of the outer blocking wall 4214 can be set on the periphery of the annular body 4212 and the coil 422, and part of it can be set on the circumference of the annular body 4212. Periphery. It should be pointed out that in this embodiment, the part of the outer blocking wall 4214 close to the wire embedding groove 4211 is sleeved on the periphery of part of the annular body 4212. Specifically, the outer blocking wall 4214 is provided on the side of the supporting flange 4213 away from the movement housing 41 . The outer wall of the annular main body 4212, the side wall of the support flange 4213 away from the movement housing 41, and the inner wall of the outer blocking wall 4214 jointly define the buried wire groove 4211.

In one embodiment, a wiring channel 424 is provided on the annular body 4212 and the support flange 4213, and the internal leads 423 extend into the buried wire groove 4211 through the wiring channel 424.

Wherein, the wiring channel 424 includes a sub wiring channel 4241 located on the annular body 4212 and a sub wiring channel 4242 located on the supporting flange 4213. The sub-wiring channel 4241 is provided through the inner and outer walls of the annular body 4212, and a wiring opening 42411 connected to one end of the sub-wiring channel 4241 is provided on the side of the annular body 4212 close to the coil 422, and on the side close to the support flange The side of 4213 facing the inside of the movement housing 41 is provided with a wiring opening 42412 connected to the other end of the sub wiring channel 4241; the sub wiring channel 4242 runs through the support flange 4213 in the direction toward the outside of the movement housing 41. A wiring opening 42421 connected to one end of the sub-cabling channel 4242 is provided on the side of the support flange 4213 facing the inside of the movement housing 41, and a wiring port 4242 is provided on the side away from the inside of the movement housing 41 to communicate with the other side of the sub-cabling channel 4242. The wiring port 42422 at one end. Wherein, the wiring opening 42412 and the wiring opening 42421 are connected through the space between the supporting flange 4213 and the annular body 4212.

Further, the internal leads 423 can enter the wiring opening 42411, extend along the sub- wiring channel 4241, and pass through the wiring opening 42412 to enter the area between the annular body 4212 and the support flange 4213, and further pass through the wiring opening. 42421 enters the sub-cabling channel 4242, passes through the cabling opening 42422, and then extends into the buried wire trough 4211.

In one embodiment, a slot 42141 is provided at the top of the outer blocking wall 4214, and the external wires 48 can extend into the buried wire trench 4211 through the slot 42141.

One end of the external wire 48 is disposed on the flexible circuit board 44 , and the flexible circuit board 44 is specifically disposed on the side of the earphone core 42 facing the inside of the movement housing 41 .

In this embodiment, the supporting flange 4213 further extends to the side of the outer blocking wall 4214 away from the annular body 4212 to form an outer edge. Further, the outer edge surrounds and abuts the inner wall of the movement housing 41 . Specifically, the outer edge of the support flange 4213 is provided with a slot 42131, so that the external wire 48 located on the side of the earphone core 42 facing the inside of the movement housing 41 can extend through the slot 42131 to the support flange. The side of 4213 facing the outside of the movement housing 41 extends to the slot 42141, and enters the buried wire groove 4211 through the slot 42141.

Further, the inner wall of the movement housing 41 is provided with a guide groove 416 with one end located on one side of the flexible circuit board 44 and the other end connected to the slot 42131 extending in the direction toward the outside of the movement housing 41, so that when The external wires 48 extend from the flexible circuit board to the second wiring groove 3331 through the guide groove 416 .

In one embodiment, the bracket 421 further includes two side blocking walls 4215 that are spaced along the circumference of the annular body 4212 and connect the annular body 4212, the supporting flange 4213 and the outer blocking wall 4214, and then the two side blocking walls 4215 Buried wire slot 4211 is defined between them.

Specifically, the two side blocking walls 4215 are disposed oppositely on the supporting flange 4213 and protrude toward the outer side of the movement housing 41 along the supporting flange 4213 . Among them, the side of the two side blocking walls 4215 facing the annular body 4212 is connected to the outer wall of the annular body 4212, and the side away from the annular body 4212 terminates at the outer side wall of the outer blocking wall 4214, and connects the wiring opening 42422 and the opening. The slot 42141 is defined between the two side blocking walls 4215, so that the inner wire 423 passing through the wiring opening 42422 and the external wire 48 entering through the slot 42141 extend into the buried wire groove 4211 defined by the two side blocking walls 4215. among.

This application also provides a bone conduction earphone core. In a bone conduction earphone core implementation, the bone conduction earphone core can have the same structure and function as the bone conduction earphone core in the above embodiment. The bone conduction earphone core can Applied to bone conduction speaker devices, or other electronic devices that can achieve sound transmission through bone conduction technology. For relevant details, please refer to the above implementation manner and will not be described again here.

The above descriptions are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies fields are equally included in the scope of patent protection of this application.

Claims (9)

1. A magnetic joint, characterized in that the magnetic joint includes: Magnetic adsorption ring, wherein the outer end surface of the magnetic adsorption ring is rotationally symmetrical with respect to a preset symmetry point; The first terminal and the second terminal are arranged in the magnetic adsorption ring, and respectively have a first contact surface and a second contact surface visible from the outer end surface of the magnetic adsorption ring, wherein the first contact surface and the second contact surface are visible from the outer end surface of the magnetic adsorption ring. The two contact surfaces are arranged so that when the magnetic adsorption ring rotates symmetrically, the first contact surface and the second contact surface before rotation at least partially overlap with the first contact surface and the second contact surface after rotation; Wherein, the magnetic adsorption ring is 180 degrees rotationally symmetrical with respect to the symmetry point, and the size of the magnetic adsorption ring in the first direction and the second direction that pass through the symmetry point and are perpendicular to each other are different; the magnetic The size of the adsorption ring in the first direction is larger than the size in the second direction, the first contact surface is provided at the symmetry point, the number of the second contact surfaces is two, and the second contact surface is along the The first direction is set on both sides of the symmetry point, and the distance from the symmetry point is set such that when the magnetic adsorption ring rotates 180 degrees, the two second contacts before rotation Any one of the surfaces overlaps at least partially with the other rotated second contact surface; wherein the shapes of the two second contact surfaces are correspondingly the same. 2. The magnetic joint according to claim 1, wherein the magnetic adsorption ring is an annular design with the symmetry point as the center, and the first contact surface and the second contact surface are respectively and The magnetic adsorption rings are concentrically arranged and nested in each other in a circular or annular design. 3. The magnetic joint according to claim 1, wherein the first contact surface and the two second contact surfaces each have 180-degree rotational symmetry with respect to the symmetry point. 4. The magnetic joint according to claim 3, characterized in that the magnetic joint further comprises an insulating base, the insulating base is at least partially inserted into the magnetic adsorption ring, the insulating base At least two accommodating holes are provided on the upper body. The first terminal and the second terminal are arranged in a column shape and are respectively inserted into the respective accommodating holes. The first terminal and the second terminal are One end surface is visible from the top surface of the insulating base, thereby forming the first contact surface and the second contact surface. 5. The magnetic joint according to claim 4, wherein the insulating base includes a support part and an insertion part, wherein the cross section of the support part is larger than the cross section of the insertion part, and further The connection between the two forms a support table, the insertion part is inserted into the magnetic adsorption ring, and the magnetic adsorption ring is further supported on the support table. 6. The magnetic joint according to claim 4, characterized in that the magnetic joint further includes a shell, and the shell is sleeved on the periphery of the insulating base and the magnetic adsorption ring. 7. The magnetic joint according to claim 6, wherein the housing includes a cylinder and a flange disposed at one end of the cylinder and protruding toward the inside of the cylinder, wherein the cylinder is sleeved on the The flange further covers the outer end surface of the magnetic adsorption ring . 8. The magnetic joint according to claim 7, wherein the top surface of the insulating base is protruding or recessed relative to the top surface of the flange . 9. A bone conduction speaker device, characterized in that the bone conduction speaker device includes the magnetic joint according to any one of claims 1-8.