CN215871129U - Vibration motor and electronic apparatus - Google Patents
Vibration motor and electronic apparatus Download PDFInfo
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- CN215871129U CN215871129U CN202120527949.2U CN202120527949U CN215871129U CN 215871129 U CN215871129 U CN 215871129U CN 202120527949 U CN202120527949 U CN 202120527949U CN 215871129 U CN215871129 U CN 215871129U
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- mover
- coil spring
- vibration motor
- housing
- case
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Abstract
The application provides a vibration motor and an electronic device including the same. The vibration motor includes a stator, a mover, a case accommodating the stator and the mover, and a coil spring supporting the mover and the case in the case. At least one end of the coil spring is convex; a part of at least one of the housing and the mover, which is in contact with the coil spring, is concave; the convex shape of the spiral spring is embedded into the concave shape of the shell and/or the rotor, so that the rotor and the shell are supported. Alternatively, at least one end of the coil spring is hook-shaped; a part of at least one of the housing and the mover, which is in contact with the coil spring, is in a hook shape; the hook shape of the coil spring is hooked with the hook shape of the housing and/or the mover, so that the mover and the housing are supported. Therefore, the coil spring can be assembled under the free length, and the yield is improved.
Description
Technical Field
The embodiment of the application relates to the field of electromechanics, in particular to a vibration motor and electronic equipment.
Background
An LRA (linear resonant actuator) is a vibration device that generates an oscillating force on a single axis, and one of applications thereof is, for example, a vibration motor used in a smartphone, and is configured by a housing, a stator, a mover, and an elastic body that supports the mover and the housing.
In the case of using a plate spring as an elastic body, a case and a mover of the vibration motor are connected by welding; in the case of using a coil spring as an elastic body, the coupling of the case of the vibration motor and the mover needs to be accomplished by bonding and fixing the end of the coil spring.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
SUMMERY OF THE UTILITY MODEL
The inventors have found that, conventionally, the case and the mover, which are the bonding surfaces, can be bonded to each other by forming a protrusion so that the protrusion is inserted into the coil spring. However, when the coil spring is adhesively fixed to the projection, the contact area between the inner diameter of the coil spring and the projection is relatively small, and the adhesive strength is low. Further, although the coil spring is not peeled off at the bonded portion when it is used under compression, the bonded portion is pulled when it is used under tension, and the adhesive strength is insufficient, which may cause peeling. In addition, when the coil spring is used in a compressed state, the coil spring is operated in a compressed state during assembly, so that the assembly performance is poor and the yield is low; although the yield can be improved by assembling the coil spring in a free length, the coil spring needs to be used in tension, and therefore, the fixing strength of the coil spring in tension needs to be considered.
In order to solve at least one of the above problems, embodiments of the present application provide a vibration motor and an electronic apparatus.
According to an aspect of an embodiment of the present application, there is provided a vibration motor including a stator, a mover, a case accommodating the stator and the mover, and a coil spring supporting the mover and the case within the case,
at least one end of the coil spring is convex;
a portion of at least one of the housing and the mover, which is in contact with the coil spring, is concave;
the convex shape of the helical spring is embedded into the concave shape of the housing and/or the mover, so that the mover and the housing are supported.
According to another aspect of embodiments of the present application, there is provided a vibration motor including a stator, a mover, a case accommodating the stator and the mover, and a coil spring supporting the mover and the case within the case,
at least one end of the coil spring is hook-shaped;
a portion of at least one of the housing and the mover, which is in contact with the coil spring, is hook-shaped;
the hook shape of the coil spring is hooked with the hook shape of the housing and/or the mover, and the mover and the housing are supported.
In some embodiments, one end of the coil spring is convex and the other end is hook-shaped; the part of the shell, which is contacted with the spiral spring, is in a hook shape; the part of the rotor, which is in contact with the spiral spring, is concave; the convex shape of the coil spring is embedded into the concave shape of the mover, and the hook shape of the coil spring is hooked on the hook shape of the housing, so that the mover and the housing are supported.
In some embodiments, the convex shape and the hook shape of the coil spring are the same shape, and both are formed by bending the tip of the coil spring.
In some embodiments, the concave shape of the mover is formed such that a surface of the mover, which is in contact with the coil spring, is recessed in a direction away from the coil spring.
In some embodiments, the hook shape of the housing is formed by recessing one end of a side wall of the housing, which is in contact with the coil spring, toward the other end.
In some embodiments, the coil springs are four in number, the mover has a main body portion and weight portions extending from both ends of the main body portion in directions away from the main body portion, respectively, and the weight portions are located between the two coil springs in a direction crossing the vibration direction.
In some embodiments, the case has a guide portion formed by bending at least a portion of an edge of the case parallel to the vibration direction in a direction to approach the mover.
In some embodiments, the case has a guide formed by at least a portion of both sidewalls of the case parallel to the vibration direction being recessed in a direction approaching the mover.
According to another aspect of the embodiments of the present application, there is provided an electronic device including the vibration motor according to any one of the embodiments.
One of the beneficial effects of the embodiment of the application lies in: the coil spring can be assembled in a free length by making the end of the coil spring convex and/or hook-shaped, making the contact part of the case and the mover concave and/or hook-shaped, embedding the convex part of the coil spring in the concave part of the case and/or the mover, and/or hooking the hook-shaped part of the coil spring to the hook-shaped part of the case and/or the mover, thereby improving the yield. In addition, the fixing strength of the coil spring in the stretching use is also improved.
Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view of an example of a vibration motor of an embodiment of the present application;
fig. 2 is a schematic view of the vibration motor shown in fig. 1 viewed from another angle;
fig. 3 is a schematic view of the vibration motor shown in fig. 1 after removing the first housing;
fig. 4 is a schematic view of the vibration motor shown in fig. 1 after removing the second housing;
fig. 5 is a schematic view of a coil spring of the vibration motor shown in fig. 1;
fig. 6 is a sectional view of the vibration motor shown in fig. 1;
fig. 7 is a sectional view of another example of the vibration motor of the embodiment of the present application.
Detailed Description
The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the described embodiments, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.
In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing different elements by reference, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.
In the embodiments of the present application, the singular forms "a", "an", and the like may include the plural forms and should be interpreted broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
Embodiments of the present application will be described below with reference to the drawings.
Embodiments of the first aspect
The embodiment of the application provides a vibration motor.
Fig. 1 is a schematic view of an example of a vibration motor of an embodiment of the present application; fig. 2 is a schematic view of the vibration motor shown in fig. 1 viewed from another angle; fig. 3 is a schematic view of the vibration motor shown in fig. 1 after removing the first housing; fig. 4 is a schematic view of the vibration motor shown in fig. 1 after removing the second housing; fig. 5 is a schematic view of a coil spring of the vibration motor shown in fig. 1.
As shown in fig. 1 to 4, the vibration motor of the embodiment of the present application includes a stator 10, a mover 20, a case 30 accommodating the stator 10 and the mover 20, and a coil spring 40 supporting the mover 20 and the case 30 within the case 30. In the present embodiment, the case 30 is configured by the first case 31 and the second case 32, but the present embodiment is not limited thereto, and the case 30 may be configured in another manner.
In some embodiments, as shown in fig. 5, at least one end of the coil spring 40 has a convex shape 41, a portion of at least one of the case 30 and the mover 20 contacting the coil spring 40 has a concave shape 21, and the convex shape 41 of the coil spring 40 is embedded in the concave shape 21 of the case 30 and/or the mover 20 to support the mover 20 and the case 30.
Therefore, the coil spring supports the rotor and the shell in a convex embedding concave mode, and the end part of the coil spring, the shell and the rotor are not supported in a bonding and fixing mode any more, so that the coil spring can be assembled in a free state, the phenomenon that the coil spring is stripped in a stretching or compressing state is avoided, the assembling performance is improved, and the yield is further improved.
In some embodiments, as shown in fig. 5, at least one end of the coil spring 40 is hook-shaped 42; a portion of at least one of the case 30 and the mover 20 contacting the coil spring 40 is a hook 33; the hook 42 of the coil spring 40 is hooked to the hook 33 of the case 30 and/or the mover 20, thereby supporting the mover 20 and the case 20.
Therefore, the coil spring supports the rotor and the shell in a hook-shaped mutual hooking mode, and the end part of the coil spring, the shell and the rotor are not supported in a bonding and fixing mode any more, so that the coil spring can be assembled in a free state, the phenomenon that the coil spring is stripped in a stretching or compressing state is avoided, the assembling performance is improved, and the yield is further improved.
In the embodiment of the present application, the case where one end of the coil spring 40 is a convex shape 41 and the other end is a hook shape 42 will be described. As shown in fig. 1 to 4, a portion of the housing 30 that contacts the coil spring 40 is a hook shape 33; a portion of the mover 20 contacting the coil spring 40 is a concave 21; the coil spring 40 has a convex shape 41 fitted into the concave shape 21 of the mover 20, and a hook shape 42 of the coil spring 40 is hooked on the hook shape 33 of the case 30, thereby supporting the mover 20 and the case 30.
In some embodiments, as shown in fig. 5, the convex shape 41 and the hook shape 42 of the coil spring 40 are the same shape, and are formed by bending the end of the coil spring 40. Thus, since it is not necessary to distinguish between both ends of the coil spring 40, manufacturing and assembling are facilitated.
In some embodiments, as shown in fig. 3 and 4, the concave shape 21 of the mover 20 is formed such that a surface of the mover 20 contacting the coil spring 40 is recessed in a direction away from the coil spring 40. Thus, the concave shape 21 is formed by performing the recess processing on the mover 20, and the manufacturing is simple. Fig. 3 and 4 illustrate the concave 21 as a rectangular parallelepiped, but the present invention is not limited thereto, and the concave 21 may be formed in other shapes depending on the configuration of the end portion of the coil spring 40.
In some embodiments, as shown in fig. 2 and 4, the hook shape 33 of the housing 30 is formed by recessing one end of the side wall of the housing 30, which is in contact with the coil spring 40, toward the other end. Thus, the recessed structure forms the hook 33, which facilitates hooking of the hook 42 at the end of the coil spring 40, and facilitates manufacture and assembly.
In some embodiments, as shown in fig. 3 and 4, the coil springs 40 are four in number, the mover 20 has a main body portion 22 and a weight portion 23, the weight portion 23 extends from both ends (both ends in the vibration direction) of the main body portion 22 in a direction away from the main body portion 22, respectively, and the weight portion 23 is located between the two coil springs 40 in a direction intersecting the vibration direction. The weight of the mover can be increased by providing the weight portion 23, and the performance of the vibration motor can be improved.
Fig. 6 is a sectional view of the vibration motor shown in fig. 1, showing a state where the vibration motor is viewed from a-a direction of fig. 1.
As shown in fig. 6, in some embodiments, the case 30 further has a guide 34, and the guide 34 is formed by bending at least a portion of an edge of the case 30 parallel to the vibration direction in a direction to approach the mover 20. This allows the guide portion 34 to position the coil spring 40, thereby preventing the coil spring 40 from rattling.
In the above-described embodiment, as shown in fig. 1 to 3, the housing 30 is constituted by the first housing 31 and the second housing 32, and the above-described guide portion 34 may be formed at a position near the middle of two opposite edges of the first housing 31 parallel to the vibration direction and at a position near the middle of two opposite edges of the second housing 32 parallel to the vibration direction. However, the present application is not limited thereto, and the guide portion 34 may be formed at another position of the housing 30 that can perform the same function.
Fig. 7 is a sectional view of another example of the vibration motor of the embodiment of the present application, showing another embodiment of the housing 30, and showing the vibration motor of the embodiment as viewed from the a-a direction shown in fig. 1.
As shown in fig. 7, in some embodiments, the guide 34 is formed by at least a portion of both sidewalls of the case 30 parallel to the vibration direction being recessed in a direction approaching the mover 20. Accordingly, the guide portion 34 can also serve to position the coil spring 40, and can prevent the coil spring 40 from rattling.
In the embodiment of the present application, the vibration motor is, for example, an LRA (linear resonant actuator).
It should be noted that, the above only describes the structure of the vibration motor related to the present application, and the vibration motor may also include other conventional structures, and specifically, reference may be made to the related art, and the description is omitted here. It is also possible to add components not shown in fig. 1 to 7 or to reduce one or more components in fig. 1 to 7. As for other configurations and structures of the vibration motor, the related art can be referred to, and the description thereof is omitted here.
According to the vibration motor of the embodiment of the present application, the end portion of the coil spring is formed in the convex shape and/or the hook shape, the portion of the case and the mover contacting the coil spring is formed in the concave shape and/or the hook shape, the convex shape of the coil spring is fitted into the concave shape of the case and/or the mover, and/or the hook shape of the coil spring is hooked on the hook shape of the case and/or the mover, so that the coil spring can be assembled in a free length, and the yield is improved.
Embodiments of the second aspect
The embodiment of the application provides electronic equipment. The electronic device has the vibration motor described in the embodiment of the first aspect, and since the structure of the vibration motor has been described in detail in the embodiment of the first aspect, the content thereof is incorporated herein, and the description thereof is omitted here.
In the embodiment of the present application, the electronic device may be any electronic device provided with a vibration motor, such as a smart phone, a smart tablet, a portable terminal, and the like, and regarding other structures of the electronic device, reference may be made to related technologies, and a description thereof is omitted here.
The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.
Preferred embodiments of the present application are described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the present application to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
Claims (10)
1. A vibration motor including a stator, a mover, a case accommodating the stator and the mover, and a coil spring supporting the mover and the case within the case,
at least one end of the coil spring is convex;
a portion of at least one of the housing and the mover, which is in contact with the coil spring, is concave;
the convex shape of the helical spring is embedded into the concave shape of the housing and/or the mover, so that the mover and the housing are supported.
2. A vibration motor including a stator, a mover, a case accommodating the stator and the mover, and a coil spring supporting the mover and the case within the case,
at least one end of the coil spring is hook-shaped;
a portion of at least one of the housing and the mover, which is in contact with the coil spring, is hook-shaped;
the hook shape of the coil spring is hooked with the hook shape of the housing and/or the mover, and the mover and the housing are supported.
3. Vibration motor according to claim 1 or 2,
one end part of the spiral spring is convex, and the other end part of the spiral spring is hook-shaped;
the part of the shell, which is contacted with the spiral spring, is in a hook shape;
the part of the rotor, which is in contact with the spiral spring, is concave;
the convex shape of the coil spring is fitted into the concave shape of the mover, and the hook shape of the coil spring is hooked on the hook shape of the case.
4. The vibration motor according to claim 3,
the convex shape and the hook shape of the coil spring are the same shape, and both are formed by bending the end of the coil spring.
5. The vibration motor according to claim 3,
the concave shape of the mover is formed such that a surface of the mover, which is in contact with the coil spring, is recessed in a direction away from the coil spring.
6. Vibration motor according to claim 2,
the hook shape of the housing is formed by recessing one end of a side wall of the housing, which is in contact with the coil spring, toward the other end.
7. Vibration motor according to claim 1 or 2,
the mover includes a main body and a weight portion extending from both ends of the main body in a direction away from the main body, and the weight portion is located between the two coil springs in a direction intersecting the vibration direction.
8. Vibration motor according to any one of claims 1 to 2 and 4 to 7,
the case has a guide portion formed by bending at least a part of an edge of the case parallel to the vibration direction in a direction approaching the mover.
9. Vibration motor according to any one of claims 1 to 2 and 4 to 7,
the housing has a guide portion formed by at least a part of two side walls of the housing parallel to the vibration direction being recessed in a direction approaching the mover.
10. An electronic device characterized in that the electronic device comprises the vibration motor of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527949.2U CN215871129U (en) | 2021-03-12 | 2021-03-12 | Vibration motor and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527949.2U CN215871129U (en) | 2021-03-12 | 2021-03-12 | Vibration motor and electronic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215871129U true CN215871129U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120527949.2U Active CN215871129U (en) | 2021-03-12 | 2021-03-12 | Vibration motor and electronic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215871129U (en) |
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2021
- 2021-03-12 CN CN202120527949.2U patent/CN215871129U/en active Active
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