CN202737653U - Minitype vibration motor - Google Patents
Minitype vibration motor Download PDFInfo
- Publication number
- CN202737653U CN202737653U CN 201220299931 CN201220299931U CN202737653U CN 202737653 U CN202737653 U CN 202737653U CN 201220299931 CN201220299931 CN 201220299931 CN 201220299931 U CN201220299931 U CN 201220299931U CN 202737653 U CN202737653 U CN 202737653U
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- Prior art keywords
- vibration unit
- vibration
- elastic supporting
- fixing
- vibration motor
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- Expired - Lifetime
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- 230000008093 supporting effect Effects 0.000 claims description 48
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000004020 conductor Substances 0.000 description 3
- 230000010287 polarization Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses a minitype vibration motor, comprising a periphery frame, a vibration unit, a drive apparatus and two elastic support members arranged in the periphery frame. The vibration unit and the drive apparatus mounted opposite to the vibration unit are disposed on the same plane in the periphery frame. The vibration unit is hung in the periphery frame on a support effect of the elastic support members and can perform vibration moving along a horizontal direction on a drive apparatus effect. The elastic support member is provided with a fixing portion fixedly combined with the vibration unit. The fixing portion is combined with a side portion of the vibration unit in a vibration moving direction. The technology scheme of the utility model solves a problem that the vibration unit is easy to polarize in the vibration process and the vibration effect of the vibration unit is affected.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to miniature vibrating motor.
Background
A micro vibration motor in the prior art includes a peripheral frame, and a vibration unit, a driving device for driving the vibration unit, and an elastic supporting member for supporting the vibration unit are accommodated in the peripheral frame.
In the related art, for a micro vibration motor in which a vibration unit vibrates in a horizontal direction, an elastic support is generally combined with the vibration unit at a side portion of the vibration unit perpendicular to a vibration direction thereof. However, in the micro vibration motor with such a structure, the vibration unit is easily polarized in the vibration process, and the vibration effect of the vibration unit is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a miniature vibrating motor to solve the vibration unit and take place the polarization easily at the vibration in-process, influence the problem of vibration effect of vibration unit.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
the utility model discloses a miniature vibrating motor, this vibrating motor includes: the vibration unit, the driving device and the elastic supporting piece are positioned in the peripheral frame;
the vibration unit is arranged right opposite to the driving device, and the vibration unit and the driving device are positioned on the same plane in the peripheral frame; the vibration unit is suspended in the peripheral frame under the supporting action of the elastic supporting piece, the vibration unit can do vibration motion along the horizontal direction under the action of the driving device,
the elastic support member is provided with a fixing portion fixedly coupled with the vibration unit, and the fixing portion is coupled with a side portion in a vibration movement direction of the vibration unit.
In the above-described micro vibration motor,
the elastic supporting pieces are two elastic supporting pieces with symmetrical structures, each elastic supporting piece is provided with a fixing part fixedly combined with the vibration unit, and the two fixing parts of the two elastic supporting pieces are respectively combined with the two side parts of the vibration unit in the vibration direction.
In the above-described micro vibration motor,
the peripheral frame comprises a shell and a cover body;
each elastic support member includes: the cover comprises a cover body/shell, a connecting part, a first connecting part, a second connecting part, a deformation part and a fixing part, wherein the connecting part is combined with the cover body/shell, the first connecting part is connected with the connecting part, the second connecting part is arranged opposite to the first connecting part, the deformation part is connected with the first connecting part and the second connecting part, and the fixing part is positioned at the end part, far away from the deformation part, of the second connecting.
In the above-described micro vibration motor,
the two elastic supporting pieces and the cover body/shell body are of an integral structure;
the deformation part is of a U-shaped structure.
In the above-described micro vibration motor,
the two fixing parts of the two elastic supporting parts and the mass center of the vibration unit are positioned on the same straight line.
In the above-described micro vibration motor,
the deformation part is positioned on one side close to the driving device and far away from the vibration unit;
or,
the deformation part is positioned on one side close to the vibration unit and far away from the driving device.
In the above-described micro vibration motor,
the vibration unit includes: the permanent magnet, magnetizer for fixing the permanent magnet and balancing weight with certain mass fixedly combined with the magnetizer;
the driving device is an electromagnet which comprises an iron core and a coil wound on the iron core.
In the micro vibration motor, under the structure that the deformation part is positioned at one side close to the driving device and far away from the vibration unit,
the fixing parts of the two elastic supporting pieces are fixedly combined with the balancing weight of the vibration unit, the balancing weight is provided with a combining part formed by material removal at the position corresponding to the two fixing parts, and the combining part is of a groove-shaped structure.
In the micro vibration motor, under the structure that the deformation part is positioned at one side close to the vibration unit far away from the driving device,
the balancing weight is provided with the dodging portion that goes the material to form corresponding to two bights of two deformation portions of two elastic support piece.
In the above-described micro vibration motor,
a joint part formed by material removal is arranged at the position of the vibration unit fixedly combined with the two fixing parts of the two elastic supporting parts; the combining part is a groove structure formed by material removal at a position, close to the magnetizer, on the balancing weight and a part for fixed combination formed by material removal corresponding to the fixing part on the magnetizer.
The utility model discloses this kind of vibrating motor includes: the vibration unit, the driving device and the elastic supporting piece are positioned in the peripheral frame; the vibration unit is just right drive arrangement sets up, and the vibration unit with drive arrangement is located the coplanar in the peripheral frame, and the vibration unit hangs in the peripheral frame under elastic support piece's supporting action, and the vibration unit can be along the horizontal direction vibration motion under drive arrangement's effect, wherein, elastic support piece is equipped with the fixed part with the fixed combination of vibration unit to the technical scheme that this fixed part combines with the lateral part in the vibration motion direction of vibration unit, for the scheme that current elastic support piece combines with the vibration unit at the lateral part of the perpendicular to its vibration direction of vibration unit, improved the symmetry of elastic support piece atress, improved the stability of vibration unit, and then avoided the vibration unit to take place polarization easily in the vibration process, influenced the condition of the vibration effect of vibration unit.
Drawings
Fig. 1 is a schematic perspective exploded view of a micro vibration motor according to an embodiment of the present invention;
fig. 2 is a schematic view of the working principle of a micro vibration motor according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a cover and an elastic supporting member of a micro vibration motor according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a miniature vibration motor counterweight according to an embodiment of the present invention;
fig. 5 is a schematic perspective exploded view of a second miniature vibration motor according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a cover and an elastic supporting member of a second embodiment of the present invention;
fig. 7 is a schematic view of a three-dimensional structure of a second miniature vibration motor according to an embodiment of the present invention with a housing and a circuit board removed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The first embodiment is as follows:
fig. 1 is a schematic perspective exploded view of a micro vibration motor according to an embodiment of the present invention; fig. 2 is a schematic view of the working principle of a micro vibration motor according to an embodiment of the present invention; fig. 3 is a schematic perspective view of a cover and an elastic supporting member of a micro vibration motor according to an embodiment of the present invention; fig. 4 is a schematic perspective view of a balancing weight of a micro vibration motor according to an embodiment of the present invention.
As shown in fig. 1 to 4, the micro vibration motor includes: the vibration unit, the driving device and the elastic supporting piece are positioned in the peripheral frame. In the present embodiment, the vibration unit is specifically the electromagnet 2, the peripheral frame is composed of a casing 11 and a cover 12, and in addition, a flat circuit board 13 is arranged on the outer side surface of the casing 11, and the circuit board 13 is used for electrically connecting the internal circuit and the external circuit of the miniature vibration motor. The vibration unit and the electromagnet 2 which is arranged right opposite to the vibration unit are accommodated in the peripheral frame, and the vibration unit and the electromagnet 2 are positioned on the same plane parallel to the plane of the circuit board 13 in the peripheral frame.
The electromagnet 2 comprises an iron core 21 and a coil 22 wound on the iron core 21, and the coil 22 is electrically connected with the circuit board 13. The vibration unit is suspended in the outer frame through the supporting effect of the elastic supporting piece 4, and can do vibration motion along the horizontal direction under the action of the electromagnet 2 serving as a driving device, and the elastic supporting piece 4 provides elastic deformation in the vibration process of the vibration unit to generate motion in the horizontal direction. The miniature vibration motor reduces the thickness of a product and realizes the thinning of the product. The vibration unit includes a permanent magnet 31, a magnetizer 32 for fixing the permanent magnet 31, and a weight 33 having a certain mass and fixedly combined with the magnetizer 32.
In this embodiment, the elastic support is provided with a fixing portion 44 fixedly coupled with the vibration unit, and the fixing portion 44 is coupled with a side portion in the vibration movement direction of the vibration unit.
As shown in fig. 2, the operation principle of the micro vibration motor is that a magnetizer 32 coupled to one magnetic pole of a permanent magnet 31 is magnetized by the permanent magnet 31, and the magnetic poles of both end portions of the magnetizer 32 are the same. After the coil 22 is connected with an electric signal through the circuit board 13, the two ends of the electromagnet 2 present certain polarities, and act with the permanent magnet 31 according to the principle that like poles repel and unlike poles attract, and the electromagnet 2 is fixed relative to the external frame, so that the permanent magnet 31 is driven by acting force to drive the vibration unit to move under the support of the elastic support member 4. When the electric signal is an alternating current signal, the polarities of the two ends of the electromagnet 2 are changed alternately, and the direction of the acting force applied to the permanent magnet 31 is changed, so that the vibration unit vibrates reciprocally in the horizontal direction to generate vibration.
Wherein, miniature vibrating motor's elastic support piece 4 and peripheral frame structure as an organic whole, elastic support piece 4 and lid 12 structure as an organic whole in this embodiment the utility model discloses an other embodiments elastic support piece 4 also can be with casing 11 structure as an organic whole. The design that the elastic supporting piece 4 and the peripheral frame are of an integral structure can reduce the number of parts and simplify the assembly process of products.
In addition, the elastic supporting member 4 of the miniature vibration motor of the present invention is two independent and symmetrical parts, each of which is referred to as an elastic supporting member 4, and there are two elastic supporting members 4. That is, in the present embodiment, the elastic supporting member is two elastic supporting members 4 having a symmetrical structure with each other, each of the elastic supporting members 4 has a fixing portion 44 fixedly coupled to the vibration unit, and the two fixing portions 44 of the two elastic supporting members 4 are respectively coupled to both side portions of the vibration unit in the vibration direction. For example, when the vibration unit is vibrated in the left-right direction by the electromagnet 2, the two fixing portions 44 of the two elastic supporting members 4 are coupled to the left and right side portions of the vibration unit, respectively.
As shown in fig. 3, each of the elastic supporting members 4 includes an engaging portion 40 engaged with the cover 12 (or the housing 11), a first connecting portion 41 connected to the engaging portion 40, a second connecting portion 42 disposed opposite to the first connecting portion 41, a deforming portion 43 connecting the first connecting portion 41 and the second connecting portion 42, and the fixing portion 44 at an end portion of the second connecting portion 42 remote from the deforming portion 43. The connection portion 40 integrates the elastic supporting member 4 and the cover 12 (or the housing 11), wherein the deformation portion 43 is a U-shaped structure, the U-shaped structure is more easily deformed, and when the elastic supporting member 4 drives the vibration unit to vibrate, the first connection portion 41, the deformation portion 43 and the second connection portion 42 are elastically deformed to support and vibrate along with the vibration unit. In the present embodiment, the entire structure of the first connecting portion 41, the deformation portion 43, and the second connecting portion 42 is bent in a direction toward the electromagnet 2, that is, the deformation portion 43 is located on a side away from the vibration unit near the electromagnet as the driving device.
The vibration unit of the present embodiment is approximately rectangular, and the fixing portions 44 are coupled to the vibration unit at both sides of the vibration unit corresponding to the vibration direction thereof, and in the structure shown in fig. 2, the vibration unit is vibrated in the illustrated left-right direction, and thus, the fixing portions 44 are coupled to both the left and right sides of the vibration unit. Preferably, the two fixing portions 44 are located on the same line with the center of mass of the vibration unit. The design that the fixing part 44 is combined with the two sides of the vibration unit corresponding to the vibration direction of the vibration unit and is positioned on the same straight line with the mass center of the vibration unit can ensure that the stress symmetry of the elastic supporting part 4 is better and the vibration stability of the vibration unit is improved.
It should be noted that the shape of the vibration unit is not limited to a rectangle, and may be other regular or irregular shapes such as a circle or a trapezoid, etc., which do not affect the implementation of the present invention, and since the implementation is easily realized by those skilled in the art, the description will not be repeated herein.
The fixing portion 44 of the present embodiment is fixedly combined with the weight 33 of the vibration unit, the position of the weight 33 corresponding to the fixing portion 44 is provided with a combination portion 331 formed by removing material, and the combination portion 331 is a groove-shaped structure, as shown in fig. 2 and 4, such a structure can stably combine the vibration unit and the fixing portion 44, and is not easy to fall off.
Example two:
fig. 5 is a schematic perspective exploded view of a second miniature vibration motor according to an embodiment of the present invention; fig. 6 is a schematic perspective view of a cover and an elastic supporting member of a second embodiment of the present invention; fig. 7 is a schematic view of a three-dimensional structure of a second miniature vibration motor according to an embodiment of the present invention with a housing and a circuit board removed.
In the second embodiment, each vibration unit 4' includes: a joining portion 40 ' joined to the cover 12 (or the case 11), a first connecting portion 41 ' connected to the joining portion 40 ', a second connecting portion 42 ' disposed opposite to the first connecting portion 41 ', a deformed portion 43 ' connecting the first connecting portion 41 ' and the second connecting portion 42 ', and a fixing portion 44 ' at an end portion of the second connecting portion 42 ' remote from the deformed portion 43 '.
As shown in fig. 5 to 7, the main difference between the present embodiment and the first embodiment is that the overall structure of the vibration unit 4 ' having the first connection portion 41 ', the deformation portion 43 ' and the second connection portion 42 ' is a structure bending toward the side of the vibration unit away from the electromagnet 2, that is, the deformation portion 43 ' is located near the side of the vibration unit away from the driving device.
As shown in fig. 7, since the deformation portion 43 'is approximately U-shaped and is bent toward the direction close to the vibration unit, in order to prevent the vibration unit from colliding with the elastic supporting member 4' in the vibration process, the utility model discloses two corners of the counterweight 33 'corresponding to the deformation portion 43' are provided with the avoiding portion 332 'formed by material removal, and the concrete shape of the avoiding portion 332' can be designed according to the specific situation.
In addition, a combining portion formed by removing material and fixedly combined with the fixing portion 44 'is disposed at a position fixedly combined with the fixing portion 44' on the vibration unit of this embodiment, as shown in fig. 7, the combining portion of this embodiment is a groove structure formed by removing material at a position on the weight block 33 'close to the magnetic conductor 32', and a portion formed on the magnetic conductor 32 'corresponding to the fixing portion 44' for fixed combination, wherein the combining portion on the weight block 33 'and the combining portion on the magnetic conductor 32' are located on the same plane. In order to simplify the process design, the material removing structure 331 ' is also disposed at the position where the two joint portions of the weight block 33 ' are adjacent, and the magnetizer 32 ' is integrally removed to make the upper surface flush with the joint portions, as shown in fig. 7.
The fixing parts 44 'of the present embodiment are also fixed to two sides of the vibration unit corresponding to the vibration direction thereof, and the two fixing parts 44' are located on the same line with the center of mass, which also can make the symmetry of the vibration unit better and improve the stability of the vibration unit.
Given the above teachings of the present invention, those skilled in the art may make additional modifications and variations to the above-described embodiments, which fall within the scope of the invention, and it should be understood that the above detailed description is only intended to better illustrate the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A miniature vibration motor, the vibration motor comprising: the vibration unit, the driving device and the elastic supporting piece are positioned in the peripheral frame;
the vibration unit is arranged right opposite to the driving device, and the vibration unit and the driving device are positioned on the same plane in the peripheral frame; the vibration unit is suspended in the peripheral frame under the supporting action of the elastic supporting piece, and can do vibration motion along the horizontal direction under the action of the driving device,
the elastic support member is provided with a fixing portion fixedly coupled with the vibration unit, and the fixing portion is coupled with a side portion in a vibration movement direction of the vibration unit.
2. The micro vibration motor according to claim 1,
the elastic supporting pieces are two elastic supporting pieces with symmetrical structures, each elastic supporting piece is provided with a fixing part fixedly combined with the vibration unit, and the two fixing parts of the two elastic supporting pieces are respectively combined with the two side parts of the vibration unit in the vibration direction.
3. The micro vibration motor according to claim 2,
the peripheral frame comprises a shell and a cover body;
each elastic support member includes: the cover comprises a cover body/shell, a connecting part, a first connecting part, a second connecting part, a deformation part and a fixing part, wherein the connecting part is combined with the cover body/shell, the first connecting part is connected with the connecting part, the second connecting part is arranged opposite to the first connecting part, the deformation part is connected with the first connecting part and the second connecting part, and the fixing part is positioned at the end part, far away from the deformation part, of the second connecting.
4. The micro vibration motor according to claim 3,
the two elastic supporting pieces and the cover body/shell body are of an integral structure;
the deformation part is of a U-shaped structure.
5. The micro vibration motor according to claim 3,
the two fixing parts of the two elastic supporting parts and the mass center of the vibration unit are positioned on the same straight line.
6. The micro vibration motor according to any one of claims 3 to 5,
the deformation part is positioned on one side close to the driving device and far away from the vibration unit;
or,
the deformation part is positioned on one side close to the vibration unit and far away from the driving device.
7. The micro vibration motor according to claim 6,
the vibration unit includes: the permanent magnet, magnetizer for fixing the permanent magnet and balancing weight with certain mass fixedly combined with the magnetizer;
the driving device is an electromagnet which comprises an iron core and a coil wound on the iron core.
8. The micro vibration motor according to claim 7, wherein in a structure in which the deformation portion is located near a side of the driving means remote from the vibration unit,
the fixing parts of the two elastic supporting pieces are fixedly combined with the balancing weight of the vibration unit, the balancing weight is provided with a combining part formed by material removal at the position corresponding to the two fixing parts, and the combining part is of a groove-shaped structure.
9. The micro vibration motor according to claim 7, wherein in a structure in which the deformation portion is located near a side of the vibration unit away from the driving means,
the balancing weight is provided with the dodging portion that goes the material to form corresponding to two bights of two deformation portions of two elastic support piece.
10. The micro vibration motor according to claim 9,
a joint part formed by material removal is arranged at the position of the vibration unit fixedly combined with the two fixing parts of the two elastic supporting parts; the combining part is a groove structure formed by material removal at a position, close to the magnetizer, on the balancing weight and a part for fixed combination formed by material removal corresponding to the fixing part on the magnetizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299931 CN202737653U (en) | 2012-06-25 | 2012-06-25 | Minitype vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299931 CN202737653U (en) | 2012-06-25 | 2012-06-25 | Minitype vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737653U true CN202737653U (en) | 2013-02-13 |
Family
ID=47663312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220299931 Expired - Lifetime CN202737653U (en) | 2012-06-25 | 2012-06-25 | Minitype vibration motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202737653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963834A (en) * | 2015-06-30 | 2015-10-07 | 丽水学院 | Oscillating vibrator of piezoelectric pump |
| CN106712434A (en) * | 2016-12-14 | 2017-05-24 | 歌尔股份有限公司 | Linear vibration motor |
-
2012
- 2012-06-25 CN CN 201220299931 patent/CN202737653U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963834A (en) * | 2015-06-30 | 2015-10-07 | 丽水学院 | Oscillating vibrator of piezoelectric pump |
| CN106712434A (en) * | 2016-12-14 | 2017-05-24 | 歌尔股份有限公司 | Linear vibration motor |
| WO2018107737A1 (en) * | 2016-12-14 | 2018-06-21 | 歌尔股份有限公司 | Linear vibration motor |
| CN106712434B (en) * | 2016-12-14 | 2019-03-12 | 歌尔股份有限公司 | Linear vibration motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |