CN220273451U - Electrical and electronic equipment - Google Patents

Abstract

The utility model provides a motor and electronic equipment. The motor includes a stator and an eccentric mover. The stator includes a coil component, and the coil component forms a cavity. The eccentric mover includes a rotating shaft and an eccentric wheel that is mounted on the rotating shaft. The eccentric wheel includes a magnetic component. , the eccentric is arranged in the cavity and can rotate in the cavity. The eccentric mover includes a rotating shaft and an eccentric wheel set on the rotating shaft. The eccentric wheel includes a magnetic component. When the coil is energized, the eccentric wheel will rotate due to torque. The rotation center of the eccentric wheel is the central axis of the rotating shaft, and the eccentric wheel is not a circle with uniform mass distribution. disc, so the center of mass of the eccentric and the center of rotation are not at the same point. In this way, since the eccentric mover is an eccentric structure, it will feel vibration when it rotates. Compared with the existing technology that requires an additional eccentric block on the rotating shaft, this motor can generate vibration through the improvement of the eccentric structure, which is beneficial to increasing the motor speed and reducing energy consumption.

Description

Electrical and electronic equipment

Technical field

The utility model relates to the field of motor technology, and in particular to a motor and electronic equipment.

Background technique

Motors are widely used in all walks of life. They are a device that converts electrical energy into mechanical energy. In order to achieve the ideal vibration, the motors often attach an eccentric block to the extended end of the rotating shaft. However, this is equivalent to adding a load to the motor, which is not conducive to The increase in motor speed requires energy consumption.

In view of this, it is necessary to provide a new motor and electronic device to solve or at least alleviate the above technical defects.

Utility model content

The main purpose of the utility model is to provide a motor and electronic equipment, aiming to solve the technical problem in the prior art that an eccentric block is provided on the rotating shaft of the motor to limit the rotation speed and consume energy.

In order to achieve the above object, according to one aspect of the present utility model, the utility model provides a motor, including:

a stator, the stator including a coil assembly forming a cavity;

Eccentric mover, the eccentric mover includes a rotating shaft and an eccentric wheel sleeved on the rotating shaft. The eccentric wheel includes a magnetic component. The eccentric wheel is arranged in the cavity and can rotate in the cavity.

In one embodiment, the eccentric is formed with a notch.

In one embodiment, the magnetic component includes a magnetic conductive member and a permanent magnet. The magnetic conductive member is sleeved on the rotating shaft, and the permanent magnets are non-uniformly distributed along the outer circumference of the magnetic conductive member.

In one embodiment, the magnetic component includes a magnetic conductive member, a permanent magnet and a mass block. The magnetic conductive member is sleeved on the rotating shaft, and the permanent magnet and the mass block are arranged on the magnetic conductive member. Periphery.

In one embodiment, the permanent magnet includes a plurality of sub-magnets, the plurality of sub-magnets are evenly spaced along the outer circumference of the magnetic conductive member, and a magnet capable of accommodating the sub-magnets is formed between two adjacent sub-magnets. There are multiple mounting slots for the mass block, and the mass blocks are non-uniformly distributed in the multiple mounting slots.

In one embodiment, the permanent magnet includes two sub-magnets, the two sub-magnets are evenly spaced along the outer circumference of the magnetic conductive member, the two sub-magnets are formed with two mounting slots, and the mass The number of blocks is one, and the mass block is arranged in one of the installation slots.

In one embodiment, the stator further includes a magnetically permeable ring, and the coil assembly is disposed in the magnetically permeable ring.

In one embodiment, the motor further includes a limiting member, and the limiting member is disposed at the notch to limit the rotation angle of the eccentric.

In one embodiment, the limiting member includes a limiting block and a buffering member, and the buffering member is disposed on a contact surface of the limiting block for contacting the eccentric.

According to another aspect of the present invention, the present invention also provides an electronic device. The electronic device includes a housing and a motor as described above disposed in the housing.

In the above solution, the motor includes a stator and an eccentric mover. The stator includes a coil assembly, and the coil assembly forms a cavity; the eccentric mover includes a rotating shaft and an eccentric wheel that is sleeved on the rotating shaft. The eccentric wheel includes a magnetic component and the eccentric wheel is arranged in the cavity. And can rotate in the cavity. The eccentric mover includes a rotating shaft and an eccentric wheel set on the rotating shaft. The eccentric wheel includes a magnetic component. When the coil is energized, the eccentric wheel will rotate due to torque. The rotation center of the eccentric wheel is the central axis of the rotating shaft, and the eccentric wheel is not a circle with uniform mass distribution. disc, so the center of mass of the eccentric and the center of rotation are not at the same point. In this way, since the eccentric mover is an eccentric structure, it will feel vibration when it rotates. Compared with the existing technology that requires an additional eccentric block on the rotating shaft, this utility model can generate a vibration sensation through the improvement of the eccentric structure, which is beneficial to increasing the motor speed and reducing energy consumption.

Description of drawings

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

Figure 1 is a schematic diagram of the exploded structure of the motor according to the embodiment of the present utility model;

Figure 2 is a schematic structural diagram of the stator and eccentric mover of the motor according to the embodiment of the present invention;

Figure 3 is a schematic structural diagram of the magnetic ring and the eccentric mover of the motor according to the embodiment of the present invention;

Figure 4 is a schematic structural diagram of the eccentric mover of the motor according to the embodiment of the present invention;

Figure 5 is another structural schematic diagram of the stator and eccentric mover of the motor according to the embodiment of the present invention;

Figure 6 is a schematic cross-sectional structural diagram of the motor according to the embodiment of the present invention.

Label description:

100. Motor; 1. Eccentric mover; 11. Eccentric wheel; 112. Magnetic components; 1121. Permanent magnet; 11211. Sub-magnet; 1122. Mass block; 1123. Magnetic conductive piece; 113. Notch; 12. Rotating shaft; 2 , stator; 21. coil; 22. magnetic ring; 3. upper shell; 31. upper through hole; 4. lower shell; 41. lower through hole; 5. limiter.

The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. implementation. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down...) in the embodiments of the present invention are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings). , if the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

Moreover, the technical solutions in the various embodiments of the present invention can be combined with each other, but they must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such technical solutions are The combination does not exist and is not within the protection scope required by the present utility model.

Referring to Figures 1 to 4, according to one aspect of the present invention, the present invention provides a motor 100, which includes a stator 2 and an eccentric mover 1. The stator 2 includes a coil assembly, and the coil assembly forms a cavity; the eccentric mover 1 It includes a rotating shaft 12 and an eccentric 11 set on the rotating shaft 12. The eccentric 11 includes a magnetic component 112. The eccentric 11 is arranged in a cavity and can rotate in the cavity.

The motor 100 of the present application first magnetizes the magnetic component 112 and then energizes the coil component. The eccentric includes the magnetic component 112. The coil 21 applies a torque to the eccentric 11, driving the eccentric 11 to rotate the eccentric mover 1. The eccentric mover 1 includes a rotating shaft 12 and an eccentric wheel 11 set on the rotating shaft 12. The eccentric wheel 11 includes a magnetic component 112. After the coil 21 is energized, the eccentric wheel 11 will receive torque and rotate. The eccentric mover 1 can have many forms: such as The eccentric 11 is a disc with uniform mass, but the central axis of the rotating shaft 12 is offset from the center of the eccentric 11; or the rotation center of the eccentric 11 is the axis of the rotating shaft 12, and the eccentric 11 is not a disc with uniform mass distribution. If it is an oval disk, the center of mass of the eccentric 11 and the center of rotation are not at the same point. In this way, since the eccentric mover 1 is an eccentric structure, it will feel vibration when it rotates. Compared with the prior art that requires an additional eccentric block on the rotating shaft 12, this embodiment can generate a vibration sensation by improving the structure of the eccentric wheel 11, which is beneficial to increasing the motor speed and reducing energy consumption.

Referring to FIGS. 3 and 4 , in one embodiment, the eccentric 11 is formed with a notch 113 . Specifically, the notch 113 may be a sector-shaped notch. By providing a notch 113 on the eccentric 11, an irregular structure of the eccentric 11 is obtained, so that the center of mass of the eccentric 11 does not coincide with its center of rotation, and a vibration can be generated during rotation. In addition, the mass of the eccentric wheel 11 can be reduced, which is beneficial to further increasing the rotation speed of the motor 100 and reducing energy consumption.

In one embodiment, the stator 2 includes a magnetically conductive ring 22 , and the coil assembly is disposed in the magnetically conductive ring 22 . The magnetic permeable ring 22 is also called a magnetic yoke, which is a yoke made of stacked silicon steel sheets. It is evenly and symmetrically divided around the coil assembly to restrain the leakage magnetic flux from spreading outward.

In one embodiment, the magnetic component 112 may only include a magnetic conductive member 1123 and a permanent magnet 1121. The magnetic conductive member 1123 is sleeved on the rotating shaft 12, and the permanent magnets 1121 are non-uniformly distributed along the outer circumference of the magnetic conductive member 1123. The outer circumference of the magnetic conductive member 1123 refers to the entire circumference surrounding the magnetic conductive member 1123. The non-uniform distribution of the permanent magnets 1121 on the outer periphery of the magnetic conductive member 1123 has two meanings: first, the number of permanent magnets 1121 is one piece, and one permanent magnet 1121 is non-uniformly distributed around the magnetic conductive member 1123. The magnet 1121 is not a complete circle, so the mass distribution of the eccentric 11 is uneven, and the rotation center of the eccentric 11 does not coincide with the center of mass of the eccentric 11 . Second, the permanent magnet 1121 includes a plurality of sub-magnets 11211. The plurality of sub-magnets 11211 are arranged at intervals around the outer periphery of the magnetic conductive member 1123. The plurality of sub-magnets 11211 are non-uniformly distributed along the outer periphery of the magnetic conductive member 1123. When the size and mass of the sub-magnets 11211 are the same, if the sub-magnets 11211 are evenly spaced along the outer circumference of the magnetic conductor 1123, then the rotation center of the eccentric 11 will coincide with the center of mass of the eccentric 11, and no good vibration will be produced. Therefore, the plurality of sub-magnets 11211 should be distributed non-uniformly along the outer periphery of the magnetically conductive member 1123 .

Of course, in another embodiment, the mass and size of the iron of each magnet 11211 may also be different. At this time, even if the sub-magnets 11211 are evenly spaced, the rotation center of the eccentric wheel 11 will not coincide with the center of mass of the eccentric wheel 11 , and a vibration will also occur when the eccentric mover 1 rotates.

It should be noted that the magnetic conductive member 1123 can be formed by stacking iron sheets or silicon steel sheets, and can play the role of connection and magnetic conduction. The coil assembly may include a coil frame and a coil 21 arranged on the coil frame. The coil frame is installed on the magnetic ring 22 to provide support for the coil 21 to be wound. The coil frame forms a cavity for the eccentric wheel 11 to rotate. Of course, it is also possible to not provide a coil frame, but to use enameled wire to wind the coil 21 on the mold, and then use high-temperature glue to shape the coil 21. A cavity for the eccentric wheel 11 to rotate is formed in the coil 21. The number of coil assemblies may be two. The two coil assemblies are arranged at intervals. The rotating shaft 12 passes through the gap between the two coils 21 and can rotate freely.

Referring to FIG. 4 , in one embodiment, the magnetic component 112 may include a magnetic conductive member 1123 , a permanent magnet 1121 and a mass 1122 . The magnetic conductive member 1123 is set on the rotating shaft 12 , and the permanent magnet 1121 and the mass 1122 are disposed on the magnetic conductive member. 1123Peripheral. The mass block 1122 is generally made of a denser material, such as lead or tungsten alloy. The density of the mass block 1122 is much greater than that of the permanent magnet 1121. When setting the mass block 1122, the mass of the mass block 1122 is also set to be larger than that of the permanent magnet 1121. By setting the mass block, the vibration feeling can be increased.

In one embodiment, the permanent magnet 1121 includes a plurality of sub-magnets 11211. The plurality of sub-magnets 11211 are evenly spaced along the outer circumference of the magnetic conductive member 1123. A mounting capable of accommodating the mass block 1122 is formed between two adjacent sub-magnets 11211. There are multiple installation slots, and the mass blocks 1122 are non-uniformly distributed in the multiple installation slots. Here, the multiple sub-magnets 11211 are evenly spaced in order to make the eccentric wheel 11 receive torque uniformly in all directions. Installation slots are formed between adjacent sub-magnets 11211. The number of installation slots is the same as the number of sub-magnets 11211. The mass block 1122 The number may be one piece or multiple pieces. Each installation slot is provided with at most one mass block 1122. The mass blocks 1122 are non-uniformly distributed in multiple installation slots because if they are evenly distributed, the center of mass of the eccentric wheel 11 will rotate on its own. In the center, it cannot produce a good vibration feeling.

Referring to Figure 4, in one embodiment, the number of sub-magnets 11211 is two, and the number of mass blocks 1122 is one. The two sub-magnets 11211 are formed with two mounting slots, and the mass block 1122 is disposed in the two sub-magnets 11211. into one of the mounting slots. The two sub-magnets 11211 are spaced apart to form two mounting slots. The number of mass blocks 1122 is one, and the mass block 1122 is only installed in one of the mounting slots. As a result, the mass distribution of the eccentric 11 is uneven. The center of mass does not coincide with the rotation center of the eccentric wheel 11, forming an eccentric structure that can produce a vibration. This embodiment uses the minimum number of sub-magnets 11211 and mass blocks 1122 to achieve an ideal vibration effect, is simple to manufacture and easy to install. It should be noted here that one of the two installation grooves that is not provided with the mass block 1122 is the above-mentioned notch 113 of the eccentric wheel 11 . In a specific embodiment, both sides of the mass block 1122 are respectively in contact with the two sub-magnets 11211. The abutment connection between the mass block 1122 and the two sub-magnets 11211 has higher strength.

Referring to FIG. 5 , in one embodiment, the motor 100 further includes a limiting member 5 , which is disposed at the notch 113 to limit the rotation angle of the eccentric 11 . The limiting member 5 allows the motor 100 to swing only within a limited angle, becoming a swing motor. The number of the limiting members 5 may be one or two. The two limiting members 5 may be arranged at intervals to limit the eccentric 11 from both sides of the notch 113 respectively.

In one embodiment, the limiting member 5 includes a limiting block and a buffer member, and the buffer member is provided on the contact surface of the limiting block for contacting with the eccentric wheel 11 . The limiting block can be made of metal material to improve strength and support, and the buffering member is used to reduce noise and buffer impact force. Specifically, the buffer member is a rubber layer or a foam layer. The buffer can be made of foam or rubber material.

Referring to Figure 1, in one embodiment, the motor 100 further includes an upper shell 3 and a lower shell 4. The upper shell 3 covers the top surface of the magnetic conductive ring 22, and the lower shell 4 covers the bottom surface of the magnetic conductive ring 22. The shell 3 is formed with an upper through hole 31 for mounting the limiting member 5 , and the lower shell 4 is formed with a lower through hole 41 for mounting the limiting member 5 . The upper through hole 31 and the lower through hole 41 are arranged facing each other, and the limiting member 5 can be installed on the upper through hole 31 and the lower through hole 41 by snapping. Of course, in other embodiments, the limiting member 5 can also be installed on the magnetic conductive ring 22 .

It should be noted that the rotation principle of the motor 100 belongs to the existing technology. However, in order to clearly explain the implementation of the present application, a specific embodiment is used to describe the principle of the motor 100 as follows. As shown in Figure 6, the motor 100 includes a stator 2 and an eccentric mover 1. The stator 2 includes a magnetic ring 22 and two coils 21 arranged in the magnetic ring 22. The eccentric mover 1 includes a rotating shaft 12 and an eccentric wheel 11. The eccentric 11 includes a magnetic conductive member 1123 and a permanent magnet 1121 that are set on the rotating shaft 12. The permanent magnets include two sub-magnets 11211 evenly and symmetrically arranged on the outer periphery of the magnetic conductive member 1123. A mass block 1122 is provided in the space formed by the two sub-permanent magnets 1121. In one of the mounting grooves, the other mounting groove forms a notch 113 of the eccentric wheel 11 . First, the two sub-magnets 11211 can be magnetized. The magnetizing directions of the two sub-magnets 11211 are consistent. As shown by the arrows in Figure 6, they are magnetized horizontally to the left. The coil 21 is energized as shown in the direction in Figure 6. Among them, "*" means that the current direction is perpendicular to the paper surface inward, and "." means that the current direction is perpendicular to the paper surface and outward. According to Ampere's law, the eccentric mover 1 can generate clockwise torque, that is, the eccentric mover will rotate in the clockwise direction. By controlling the direction of the current in the coil 21, the motor 100 can be continuously rotated around the axis; this device can be used to convert electrical energy into rotating mechanical energy. The structure is simple. Since the eccentric mover 1 has an eccentric structure, it will feel vibration when rotating.

According to another aspect of the present invention, the present invention also provides an electronic device. The electronic device includes a housing and the above-mentioned motor 100 disposed in the housing. Since the electronic device includes all the technical solutions of all embodiments of the above-mentioned motor 100, it has all the beneficial effects brought by all the above-mentioned technical solutions, which will not be described again here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and do not limit the patent scope of the present utility model; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art It should be understood that under the technical concept of the present invention, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to equivalently replace some or all of the technical features; or to directly or indirectly apply it to other related technologies. fields, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of this application, and they should all be covered by the claims and the scope of the description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. A motor, characterized in that it includes: a stator, the stator including a coil assembly forming a cavity; Eccentric mover, the eccentric mover includes a rotating shaft and an eccentric wheel sleeved on the rotating shaft. The eccentric wheel includes a magnetic component. The eccentric wheel is arranged in the cavity and can rotate in the cavity. 2. The motor according to claim 1, wherein the eccentric is formed with a notch. 3. The motor according to claim 1 or 2, characterized in that the magnetic component includes a magnetic conductive part and a permanent magnet, the magnetic conductive part is sleeved on the rotating shaft, and the permanent magnet is along the magnetic conductive part. The outer circumference of the piece is non-uniformly distributed. 4. The motor according to claim 1 or 2, characterized in that the magnetic component includes a magnetic conductive member, a permanent magnet and a mass block, the magnetic conductive member is sleeved on the rotating shaft, the permanent magnet and the The mass block is arranged on the outer periphery of the magnetic conductive member. 5. The motor according to claim 4, wherein the permanent magnet includes a plurality of sub-magnets, the plurality of sub-magnets are evenly spaced along the outer circumference of the magnetic conductive member, and two adjacent sub-magnets are Mounting slots capable of accommodating the mass blocks are formed between the magnets. There are multiple mounting slots, and the mass blocks are non-uniformly distributed in the multiple mounting slots. 6. The motor according to claim 4, wherein the permanent magnet includes two sub-magnets, the two sub-magnets are evenly spaced along the outer circumference of the magnetic conductive member, and the two sub-magnets form a There are two mounting slots, and the number of the mass blocks is one, and the mass block is arranged in one of the mounting slots. 7. The motor according to claim 1, wherein the stator further includes a magnetically permeable ring, and the coil assembly is disposed in the magnetically permeable ring. 8. The motor according to claim 2, wherein the motor further includes a limiting member, and the limiting member is disposed at the notch to limit the rotation angle of the eccentric. 9. The motor according to claim 8, wherein the limiting member includes a limiting block and a buffer member, and the buffer member is provided on the limiting block for contacting with the eccentric wheel. on the interface. 10. An electronic device, characterized in that the electronic device includes a housing and a motor according to any one of claims 1 to 9 provided in the housing.