CN222366390U - Vibration system and speaker - Google Patents

Abstract

The utility model discloses a vibration system and a loudspeaker, wherein the vibration system comprises a vibrating diaphragm, a voice coil and a folding ring, the voice coil is connected with one end of the vibrating diaphragm, the folding ring comprises a base ring made of rubber materials and a protective ring made of polyurethane materials, the base ring is provided with a plurality of through holes in a penetrating mode, the protective ring is overlapped on the base ring and covers the through holes, and the base ring is connected with the other end of the vibrating diaphragm. When the folding ring is manufactured, the base ring made of rubber material is penetrated through the through holes, the base ring is made into a honeycomb structure so as to reduce weight, the protective ring made of polyurethane material is overlapped on the base ring and covers the through holes, the protective ring has the advantages of being small in weight, good in elasticity, good in damping effect and the like, the phenomenon that folds occur during large displacement is overcome, the risks of shaking the wiping ring, increasing distortion and the like of the loudspeaker are reduced, and the folding ring fuses the characteristics of the polyurethane and the rubber, is strong in structural stability, has new originality and is strong in market competitiveness.

Description

Vibration system and loudspeaker

Technical Field

The present disclosure relates to speaker structures, and particularly to a vibration system and a speaker.

Background

The loudspeaker is an electroacoustic transducer for radiating sound directly to free space, its main radiating part cone is a main vibration device for radiating sound energy of loudspeaker, the cone is formed from vibrating diaphragm and folding ring connected with vibrating diaphragm, the folding ring can ensure axial movement of cone along the loudspeaker, besides the material of general cone the folding ring material can be bonded on the cone by means of hot-pressing, and can be used for forming mechanical structure of suspension system for vibration of loudspeaker together with positioning support plate, so that it can provide compliance and supporting force for loudspeaker, and can ensure axial vibration of vibrating diaphragm of loudspeaker.

At present, the materials of the folding ring of the common loudspeaker in the market comprise PU, cloth, rubber, foamed plastic and the like, and the folding ring is generally formed by hot pressing or vulcanization of a single material, wherein the folding ring of the PU material has small quality, but has poor elasticity, the rubber folding ring has quick elastic recovery and good damping effect, but has overlarge weight, obviously the single characteristic of the common material can not meet the requirement of diversification of the performance of the loudspeaker, and the folding ring manufactured by the original single material has an excessively simple structure, has no innovation, hardly arouses the interest of consumers and has poor market competitiveness.

Disclosure of utility model

The utility model aims to provide a vibration system and a loudspeaker, which aim to solve the technical problems that the bending ring of the traditional loudspeaker is made of PU, cloth, rubber, foamed plastic and the like, and is generally made of a single material through hot pressing or vulcanization, wherein the bending ring of the PU material has small mass, but poor elasticity, the rubber bending ring has quick elastic recovery and good damping effect, the weight is overlarge, the single characteristic of the common material obviously cannot meet the requirement of diversification of the performance of the loudspeaker, and the bending ring made of the original single material has too simple structure, no new originality, and is difficult to arouse the interest of consumers and poor market competitiveness.

The present utility model provides a vibration system comprising:

A vibrating diaphragm;

the voice coil is connected with one end of the vibrating diaphragm;

The ring is folded, including the base ring and the protection ring of by polyurethane material preparation by the rubber material, the base ring runs through and is equipped with a plurality of through-holes, the protection ring fold locate on the base ring and cover each the through-hole, the base ring with the other end of vibrating diaphragm is connected.

Further, the vibration system further comprises a first bonding piece, and the protection ring is bonded to the base ring through the first bonding piece.

Further, the base ring comprises a first connecting portion, a first bending portion and a second connecting portion which are sequentially connected, the first connecting portion is of a plane structure which is arranged in an annular mode, the cross section of the first bending portion is of an arc-shaped structure, the second connecting portion is of an inclined surface structure which is arranged in an annular mode, all through holes are formed in the first bending portion, the first connecting portion, the first bending portion and the second connecting portion are connected with the protection ring, and the second connecting portion is connected with the vibrating diaphragm.

Further, the protection ring comprises a third connecting portion, a second bending portion and a fourth connecting portion which are sequentially connected, the third connecting portion is of a plane structure which is arranged in an annular mode, the cross section of the second bending portion is of an arc-shaped structure, the fourth connecting portion is of an inclined surface structure which is arranged in an annular mode, the third connecting portion is fixed to the top of the first connecting portion, the second bending portion is fixed to the top of the first bending portion and covers each through hole, and the fourth connecting portion is fixed to the top of the second connecting portion.

Further, the vibration system further comprises at least one second bonding piece, the vibration film comprises a first annular film and a second annular film integrally formed with the first annular film, the first annular film is connected with the base ring, the inner diameter of the first annular film gradually decreases from one side close to the base ring to one side close to the second annular film, the inner diameter of the second annular film gradually increases from one side close to the first annular film to one side far away from the first annular film, and the first annular film and the second annular film are connected with the voice coil through the second bonding piece.

Further, the voice coil loudspeaker voice coil include the skeleton and twine in coil on the skeleton lateral wall, first annular membrane and part the skeleton encloses and closes and form a first holding tank, the second annular membrane with another part the skeleton encloses and closes and form a second holding tank, first holding tank with second holding tank intercommunication, the quantity of second bonding spare is one, one of them part of second bonding spare is located in the first holding tank, another part is located in the second holding tank.

Further, the vibration system further includes a dust cap and a third adhesive member, the dust cap being adhered to the voice coil by the third adhesive member.

The utility model also provides a loudspeaker, which comprises a basin frame, a magnetic circuit system and the vibration system, wherein the magnetic circuit system is fixed in the basin frame, the magnetic circuit system is provided with a magnetic gap, the base ring is connected with the basin frame, and the voice coil part is inserted into the magnetic gap.

Further, the magnetic circuit system comprises a magnetic bowl, a permanent magnet and a pole core, wherein the magnetic bowl is fixed in the basin frame, the magnetic bowl is provided with a storage cavity, the permanent magnet is fixed in the storage cavity, the pole core is fixed on one surface of the permanent magnet, which is close to the vibrating diaphragm, and a magnetic gap is formed between the permanent magnet and the pole core after assembly and the inner side wall of the storage cavity.

Further, the loudspeaker further comprises a damper for preventing the voice coil from moving transversely, wherein one end of the damper is connected with the voice coil, and the other end of the damper is connected with the basin frame.

Compared with the prior art, the utility model has the beneficial effects that:

When the folding ring is manufactured, the base ring made of the rubber material is penetrated through the through holes, the base ring is made into the honeycomb structure so as to reduce the weight, the protective ring made of the polyurethane material is overlapped on the base ring and covers all the through holes, the protective ring has tightness, the manufactured folding ring has the advantages of small weight, good elasticity, good damping effect and the like, the phenomenon of wrinkling during large displacement is overcome, the risks of shaking the wiping ring, distortion increase and the like of the loudspeaker are reduced, the folding ring is formed by overlapping the base ring made of the rubber material and the protective ring made of the polyurethane material, the advantages of the polyurethane and the characteristics of the rubber are fused by the folding ring, the structural stability is strong, the folding ring is novel, the interest of consumers is easily caused, and the market competitiveness is strong.

Drawings

FIG. 1 is a cross-sectional view of a vibration system provided by an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 3 is a schematic diagram of a cone according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is an exploded view of FIG. 3;

fig. 6 is a partial cross-sectional view of a speaker according to an embodiment of the present utility model;

Fig. 7 is a sectional view of a magnetic circuit system and a basin stand combined according to an embodiment of the present utility model.

In the figure:

10. Vibration system, 11, first accommodation groove, 12, second accommodation groove, 20, vibrating diaphragm, 21, first annular film, 22, second annular film, 30, voice coil, 31, skeleton, 32, coil, 40, folded ring, 41, base ring, 411, through hole, 412, first connecting part, 413, first bending part, 414, second connecting part, 42, protective ring, 421, third connecting part, 422, second bending part, 423, fourth connecting part, 50, cone, 60, second adhesive piece, 70, dust cap, 80, third adhesive piece, 90, basin frame, 100, magnetic circuit system, 110, magnetic gap, 200, magnetic bowl, 210, accommodating cavity, 300, magnetic component, 310, permanent magnet, 320, pole core, 400, shock absorber.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Referring to fig. 1 to 5, an embodiment of the utility model discloses a vibration system 10 applied to a speaker, wherein the vibration system 10 comprises a vibrating diaphragm 20, a voice coil 30 and a ring 40, the vibrating diaphragm 20 is positioned between the ring 40 and the voice coil 30, one end of the vibrating diaphragm 20 is connected with the ring 40, the other end of the vibrating diaphragm 20 is connected with the voice coil 30, and the ring 40 and the vibrating diaphragm 20 are adhered together to form a cone 50 in the speaker.

The folding ring 40 comprises a base ring 41 made of rubber material and a protective ring 42 made of polyurethane material, wherein polyurethane is called PU for short, the base ring 41 is provided with a plurality of through holes 411 in a penetrating way, the protective ring 42 is overlapped on the base ring 41 and covers the through holes 411, the base ring 41 is connected with the vibrating diaphragm 20, the folding ring 40 formed in this way has the advantages of small weight, good elasticity, good damping effect and the like, the phenomenon that folds occur during large displacement is overcome, the risks of shaking the wiping ring of the loudspeaker, distortion increase and the like are reduced, and the folding ring 40 is strong in structural stability, novel, easy to arouse the interests of consumers and strong in market competitiveness.

The vibration system 10 further includes a first adhesive member, the protection ring 42 is adhered to the base ring 41 through the first adhesive member, when the folding ring 40 is manufactured, raw rubber raw materials can be firstly vulcanized into the base ring 41 with a honeycomb structure, so that the weight is reduced, the tightness of PU materials is utilized, the protection ring 42 is manufactured, then the first adhesive member is coated between the base ring 41 manufactured by the rubber materials and the protection ring 42 manufactured by the polyurethane materials, and finally, the first adhesive member is formed by hot press molding, and finally, the folding ring 40 combines the characteristics and advantages of the polyurethane and the rubber materials to form a novel folding ring 40 for the loudspeaker, so that the performance requirements of small weight, high mechanical damping and transient response of the vibration system 10 in the loudspeaker are met.

In this embodiment, the vibration system 10 further includes a fourth adhesive member, the base ring 41 includes a first connecting portion 412, a first bending portion 413 and a second connecting portion 414 that are sequentially connected, the first connecting portion 412 is a planar structure that is annularly disposed, the cross section of the first bending portion 413 is an arc structure, the second connecting portion 414 is an inclined structure that is annularly disposed, each through hole 411 is disposed on the first bending portion 413, the inner diameter of the first connecting portion 412 is greater than the outer diameter of the second connecting portion 414, the first connecting portion 412, the first bending portion 413 and the second connecting portion 414 are all connected with the protection ring 42 through the first adhesive member, the second connecting portion 414 can be connected with the vibrating diaphragm 20 through the fourth adhesive member, an included angle that is greater than 90 degrees is formed between the second connecting portion 414 and the first connecting portion 412, so that the contact area between the vibrating diaphragm 20 and the base ring 41 can be increased, the vibrating diaphragm 20 is prevented from being separated from the bending ring 40 in the vibrating process, and the fourth adhesive member is an adhesive.

The through holes 411 may be triangular, circular, prismatic or polygonal, in this embodiment, the through holes 411 are hexagonal, the number of the through holes 411 is multiple and distributed in two annular shapes, and the shape and number of the through holes 411 may be set as required.

The guard ring 42 includes a third connecting portion 421, a second bending portion 422 and a fourth connecting portion 423 that are sequentially connected, the third connecting portion 421 is of a planar structure that is annularly arranged, the cross section of the second bending portion 422 is of an arc structure, the fourth connecting portion 423 is of an inclined surface structure that is annularly arranged, the third connecting portion 421 is fixed on the top of the first connecting portion 412 through a first adhesive, the second bending portion 422 is fixed on the top of the first bending portion 413 through the first adhesive and covers each through hole 411, the fourth connecting portion 423 is fixed on the top of the second connecting portion 414 through the first adhesive, the inner diameter of the third connecting portion 421 is larger than the outer diameter of the fourth connecting portion 423, and an included angle between the fourth connecting portion 423 and the third connecting portion 421 is larger than 90 degrees.

The vibration system 10 further includes at least one second adhesive member 60, the diaphragm 20 includes a first annular membrane 21 and a second annular membrane 22 integrally formed with the first annular membrane 21, the first annular membrane 21 is connected with the base ring 41, an inner diameter of the first annular membrane 21 gradually decreases from a side close to the base ring 41 toward a side close to the second annular membrane 22, an inner diameter of the second annular membrane 22 gradually increases from a side close to the first annular membrane 21 toward a side far from the first annular membrane 21, the first annular membrane 21 and the second annular membrane 22 are both connected with the voice coil 30 through the second adhesive member 60, thereby fixing the diaphragm 20 to the voice coil 30, and the second adhesive member 60 is an adhesive.

The voice coil 30 includes a bobbin 31 and a coil 32 wound around an outer side wall of the bobbin 31, the first annular membrane 21 and a part of the bobbin 31 are enclosed to form a first accommodating groove 11, the second annular membrane 22 and another part of the bobbin 31 are enclosed to form a second accommodating groove 12, the first accommodating groove 11 is communicated with the second accommodating groove 12, the number of the second adhesive pieces 60 is one, one part of the second adhesive pieces 60 is located in the first accommodating groove 11, the other part of the second adhesive pieces 60 is located in the second accommodating groove 12, when the basin 50 is adhered to the bobbin 31, a part of the second adhesive pieces 60 can be injected into the first accommodating groove 11 first, then another part of the second adhesive pieces 60 can be injected into the second accommodating groove 12 in the opposite direction, at this time, the two parts of the second adhesive pieces 60 are converged together, so that the same contact area can be achieved by using fewer second adhesive pieces 60, the use amount of the second adhesive pieces 60 is fewer under the same contact area, and the production cost and the weight of the vibration system 10 are reduced.

The vibration system 10 further includes a dust cap 70 and a third adhesive member 80, where the dust cap 70 is adhered to the voice coil 30 by the third adhesive member 80, and of course, the dust cap 70 may be further fixed to the frame 31 of the voice coil 30 by a threaded connection or a clamping connection, and the third adhesive member 80 is an adhesive.

Referring to fig. 1, 2, and 5 to 7, the utility model further discloses a speaker, which comprises a basin 90, a magnetic circuit 100 and the vibration system 10 described above, wherein the magnetic circuit 100 is fixed in the basin 90, the magnetic circuit 100 is provided with a magnetic gap 110, a base ring 41 is connected with the basin 90, a voice coil 30 is partially inserted into the magnetic gap 110, the magnetic circuit 100 can generate a magnetic field in the magnetic gap 110, when the voice coil 30 is powered on and moves in the magnetic field, the voice coil 30 drives the cone 50 and the dust cap 70 to perform a piston movement together, the cone 50 uses the folded ring 40 as a control unit in the movement process, and the diaphragm 20 uses the radiation unit to generate sound.

The magnetic circuit system 100 comprises a magnetic bowl 200 and a magnetic assembly 300, wherein the magnetic bowl 200 is fixed in the basin 90, the magnetic bowl 200 is provided with a containing cavity 210, the magnetic assembly 300 is fixed in the containing cavity 210, and a magnetic gap 110 is formed between the magnetic assembly 300 and the inner side wall of the containing cavity 210.

The magnetic assembly 300 includes a permanent magnet 310 and a pole core 320, the permanent magnet 310 is fixed in the accommodating cavity 210, the pole core 320 is fixed on one surface of the permanent magnet 310 near the diaphragm 20, the pole core 320 is made of a magnetically conductive material, the permanent magnet 310 and the pole core 320 form the magnetic gap 110 between the assembled permanent magnet 310 and the inner side wall of the accommodating cavity 210, the pole core 320 plays a role in magnetic conduction, and the magnetic force lines perpendicular to the pole core 320 emitted by the permanent magnet 310 can be transmitted to the magnetic bowl 200 in a direction parallel to the pole core 320, i.e. perpendicular to the side wall of the magnetic bowl 200, so as to form a magnetic field between the permanent magnet 310 and the magnetic bowl 200 and increase the thickness of the magnetic circuit 100.

The speaker further includes a damper 400 for preventing the voice coil 30 from moving laterally, one end of the damper 400 is connected to the voice coil 30, and the other end is connected to the tub 90, reducing the vibration amplitude of the tub 50 in the speaker, and preventing the tub 50 from being damaged.

The assembling method of the loudspeaker comprises the following steps:

Step S101, assembling the folding ring 40, namely preparing a first adhesive piece, a base ring 41 made of rubber and a protective ring 42 made of polyurethane, placing the base ring 41 made of rubber in a specific die, coating the surface of the base ring 41 with the first adhesive piece, placing the protective ring 42 made of polyurethane on the first adhesive piece, and integrating the base ring 41 and the protective ring 42 into a whole through hot pressing to form the folding ring 40;

Step S102, assembling the vibration system 10, wherein one end of the vibrating diaphragm 20 is connected with the base ring 41 on the folding ring 40 through a fourth bonding piece, the other end of the vibrating diaphragm 20 is connected with the voice coil 30 through a second bonding piece 60, and the dust cap 70 is bonded on the voice coil 30 through a third bonding piece 80;

Step S103, assembling the magnetic circuit system 100, fixing the permanent magnet 310 in the accommodating cavity 210, fixing the pole piece 320 on one surface of the permanent magnet 310 close to the vibrating diaphragm 20, and forming the magnetic gap 110 between the permanent magnet 310 and the pole piece 320 and the inner side wall of the accommodating cavity 210 after assembling;

Step S104, assembling the loudspeaker, fixing the assembled magnetic circuit system 100 in the basin frame 90, connecting one end of the damper 400 with the voice coil 30, connecting the other end with the basin frame 90, and finally fixing the vibration system 10 on the basin frame 90, wherein the voice coil 30 in the vibration system 10 stretches into the magnetic gap 110 of the magnetic circuit system 100.

In summary, when the folding ring 40 of the present utility model is manufactured, the base ring 41 made of rubber material is penetrated through the plurality of through holes 411, the base ring 41 is made into a honeycomb structure so as to reduce the weight, and then the protecting ring 42 made of polyurethane material is overlapped on the base ring 41 and covers each through hole 411, the protecting ring 42 has tightness, so that the manufactured folding ring 40 has the advantages of small weight, good elasticity, good damping effect, and the like, and simultaneously overcomes the phenomenon that folds occur during large displacement, and reduces the risks of shaking, rubbing, distortion, and the like of the loudspeaker, and the folding ring 40 is formed by overlapping the base ring 41 made of rubber material and the protecting ring 42 made of polyurethane material, and the folding ring 40 fuses the advantages of the polyurethane and the rubber material, so that the folding ring has strong structural stability, has the novelty, is easy to arouse the interest of consumers, and has strong market competitiveness.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (10)

1. A vibration system, comprising:

A vibrating diaphragm;

the voice coil is connected with one end of the vibrating diaphragm;

The ring is folded, including the base ring and the protection ring of by polyurethane material preparation by the rubber material, the base ring runs through and is equipped with a plurality of through-holes, the protection ring fold locate on the base ring and cover each the through-hole, the base ring with the other end of vibrating diaphragm is connected.

2. The vibration system of claim 1, further comprising a first adhesive member, the guard ring being adhered to the base ring by the first adhesive member.

3. The vibration system of claim 1, wherein the base ring comprises a first connecting portion, a first bending portion and a second connecting portion which are sequentially connected, the first connecting portion is of a planar structure which is annularly arranged, the cross section of the first bending portion is of an arc-shaped structure, the second connecting portion is of an inclined surface structure which is annularly arranged, each through hole is formed in the first bending portion, the first connecting portion, the first bending portion and the second connecting portion are all connected with the protection ring, and the second connecting portion is connected with the vibrating diaphragm.

4. The vibration system according to claim 3, wherein the guard ring includes a third connecting portion, a second bending portion and a fourth connecting portion which are sequentially connected, the third connecting portion is a planar structure which is annularly arranged, a cross section of the second bending portion is an arc structure, the fourth connecting portion is an inclined surface structure which is annularly arranged, the third connecting portion is fixed on top of the first connecting portion, the second bending portion is fixed on top of the first bending portion and covers each of the through holes, and the fourth connecting portion is fixed on top of the second connecting portion.

5. The vibration system of claim 1, further comprising at least a second adhesive member, wherein the diaphragm comprises a first annular membrane and a second annular membrane integrally formed with the first annular membrane, the first annular membrane is connected to the base ring, an inner diameter of the first annular membrane gradually decreases from a side close to the base ring toward a side close to the second annular membrane, an inner diameter of the second annular membrane gradually increases from a side close to the first annular membrane toward a side away from the first annular membrane, and the first annular membrane and the second annular membrane are connected to the voice coil through the second adhesive member.

6. The vibration system of claim 5 wherein the voice coil comprises a bobbin and a coil wound around an outer wall of the bobbin, the first annular membrane and a portion of the bobbin define a first receiving slot, the second annular membrane and another portion of the bobbin define a second receiving slot, the first receiving slot is in communication with the second receiving slot, the number of second adhesive members is one, and one portion of the second adhesive members is disposed in the first receiving slot and the other portion is disposed in the second receiving slot.

7. The vibration system of claim 1, further comprising a dust cap and a third adhesive, the dust cap being adhered to the tone ring by the third adhesive.

8. A loudspeaker comprising a frame, a magnetic circuit and a vibration system according to any one of claims 1 to 7, wherein the magnetic circuit is fixed in the frame, the magnetic circuit is provided with a magnetic gap, the base ring is connected to the frame, and the voice coil is partially inserted into the magnetic gap.

9. The loudspeaker of claim 8, wherein the magnetic circuit comprises a magnetic bowl, a permanent magnet and a pole core, the magnetic bowl is fixed in the basin frame, the magnetic bowl is provided with a containing cavity, the permanent magnet is fixed in the containing cavity, the pole core is fixed on one surface of the permanent magnet, which is close to the vibrating diaphragm, and the permanent magnet and the pole core form the magnetic gap with the inner side wall of the containing cavity after being assembled.

10. The loudspeaker of claim 8, further comprising a damper for preventing lateral movement of the voice coil, one end of the damper being connected to the voice coil and the other end being connected to the frame.