CN211606361U - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
- Publication number
- CN211606361U CN211606361U CN202020209417.XU CN202020209417U CN211606361U CN 211606361 U CN211606361 U CN 211606361U CN 202020209417 U CN202020209417 U CN 202020209417U CN 211606361 U CN211606361 U CN 211606361U
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- China
- Prior art keywords
- vibration unit
- connecting arm
- arm
- elastic
- fixed
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- Expired - Fee Related
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- 238000005452 bending Methods 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 230000005489 elastic deformation Effects 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model provides a linear vibration motor, which comprises a shell with an accommodating space, a vibration unit arranged in the accommodating space, an elastic part suspending the vibration unit in the accommodating space and a coil component fixed on the shell and driving the vibration unit to vibrate, wherein the elastic part comprises an elastic arm, a first connecting arm and a second connecting arm which are respectively bent and extended in the same direction from the two opposite ends of the elastic arm, and the first connecting arm and the second connecting arm are respectively positioned at the two opposite sides of the vibration unit; the first connecting arm is fixed in the vibration unit, the second connecting arm and the vibration unit are arranged at intervals, the second connecting arm comprises a body portion extending by bending of the elastic arm and a fixing portion extending by bending of the body portion in a direction perpendicular to the body portion, and the fixing portion is fixed on the shell. Compared with the prior art, the linear vibration motor of the utility model can effectively reduce the elastic deformation stress of the elastic element and increase the vibration amplitude.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to a vibration motor, and more particularly, to a linear vibration motor for a portable consumer electronic product.
[ background of the invention ]
With the development of electronic technology, portable consumer electronic products are more and more sought after by people, such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment devices, and the like, generally use vibration motors to perform system feedback, such as incoming call prompt, information prompt, navigation prompt, vibration feedback of game consoles, and the like. Such a wide application requires a vibration motor having high performance, good stability and long service life.
A linear vibration motor of the related art includes a housing having an accommodating space, a vibration unit disposed in the accommodating space, an elastic member suspending the vibration unit in the accommodating space, and a coil assembly fixed to the housing and driving the vibration unit to vibrate, where the elastic member includes an elastic arm, and a first connecting arm and a second connecting arm bent and extended in the same direction from opposite ends of the elastic arm, respectively; the first connecting arm is fixed to the vibration unit, and the second connecting arm is fixed to the housing.
However, in the linear vibration motor of the related art, since the second connection arm is integrally of a flat plate-shaped structure and directly attached and fixed to the side wall of the housing, the elastic member is elastically deformed when the vibration unit vibrates, and the stress is large, so that the working amplitude is difficult to further increase.
Therefore, there is a need to provide a new linear vibration motor to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a can effectively reduce the linear vibrating motor of elastic component elastic deformation stress and vibration range increase.
In order to achieve the above object, the present invention provides a linear vibration motor, which includes a housing having an accommodating space, a vibration unit disposed in the accommodating space, an elastic member suspending the vibration unit in the accommodating space, and a coil assembly fixed to the housing and driving the vibration unit to vibrate, wherein the elastic member includes an elastic arm, a first connecting arm and a second connecting arm bent and extended in the same direction from opposite ends of the elastic arm, and the first connecting arm and the second connecting arm are respectively located on opposite sides of the vibration unit perpendicular to a vibration direction of the vibration unit; the first connecting arm is fixed to the vibration unit, the second connecting arm and the vibration unit are arranged at intervals, the second connecting arm comprises a body portion and a fixing portion, the body portion is bent and extended by the elastic arm, the fixing portion is bent and extended by the body portion along a direction perpendicular to the body portion, and the fixing portion is fixed to the shell.
Preferably, the fixing portion is formed by bending and extending one end of the main body portion away from the elastic arm in a direction approaching the vibration unit.
Preferably, the fixing portion is formed by bending and extending one end of the main body portion away from the elastic arm in a direction away from the vibration unit.
Preferably, the casing includes the diapire, by the peripheral lateral wall of the peripheral bending extension of diapire and lid locate the lateral wall is kept away from the apron of diapire one end, the fixed part is fixed in at least one in diapire and the apron.
Preferably, the fixing portions include two fixing portions respectively disposed at opposite ends of the body portion close to the bottom wall and the cover plate, and the two fixing portions are respectively fixed to the bottom wall and the cover plate.
Preferably, the casing includes the diapire, by the peripheral lateral wall of the peripheral bending extension of diapire and lid locate the lateral wall is kept away from the apron of diapire one end, the fixed part is fixed in the lateral wall.
Preferably, the fixing portions include two fixing portions respectively disposed at two opposite ends of the main body portion close to the bottom wall and the cover plate, and the two fixing portions are fixed to the same side wall.
Preferably, the elastic parts include two elastic parts which are respectively positioned at two opposite sides of the vibration unit along the vibration direction of the vibration unit, and the two elastic parts are arranged in a central symmetry manner.
Preferably, the linear vibration motor further comprises a solder block, wherein the solder block is attached to one side of the fixing part far away from the shell, so that one side of the fixing part far away from the vibration unit is fixed on the shell through welding.
Preferably, the linear vibration motor further includes a reinforcing block, the reinforcing block is located on a side of the first connecting arm away from the second connecting arm, and the reinforcing block fixes the first connecting arm to the vibration unit.
Compared with the prior art, in the linear vibration motor of the present invention, the elastic member includes an elastic arm, and a first connecting arm and a second connecting arm respectively extending from opposite ends of the elastic arm in a same direction, and the first connecting arm and the second connecting arm are respectively located at opposite sides of the vibration unit perpendicular to the vibration direction of the vibration unit; the first connecting arm is fixed to the vibration unit, the second connecting arm is arranged at an interval with the vibration unit, and the second connecting arm comprises a body part bent and extended by the elastic arm and a fixing part bent and extended by the body part along a direction perpendicular to the body part; the fixed part is fixed in the casing, the fixed part that the second linking arm extends through buckling is fixed in the casing has increased elastic deformation's the arm of force, effectively reduces elastic deformation stress, can further promote work amplitude, improves the device vibration volume.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is an exploded view of a partial perspective structure of a first embodiment of a linear vibration motor according to the present invention;
fig. 2 is an exploded perspective view of another part of a first embodiment of a linear vibration motor according to the present invention;
fig. 3 is a schematic perspective view of a linear vibration motor according to a first embodiment of the present invention;
3 FIG. 3 4 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 3 3; 3
Fig. 5 is a schematic perspective view of an elastic member according to a first embodiment of the present invention;
fig. 6 is a schematic perspective view of another elastic member according to a first embodiment of the present invention;
fig. 7 is an exploded perspective view of a second embodiment of the linear vibration motor according to the present invention;
fig. 8 is a schematic perspective view of a second embodiment of a linear vibration motor according to the present invention;
FIG. 9 is a sectional view taken along line B-B of FIG. 8;
fig. 10 is a schematic perspective view of an elastic member according to a second embodiment of the linear vibration motor of the present invention;
fig. 11 is an exploded view of a three-dimensional structure of a third embodiment of the linear vibration motor of the present invention;
fig. 12 is a schematic perspective view of a third embodiment of the linear vibration motor of the present invention;
FIG. 13 is a sectional view taken along line C-C of FIG. 12;
fig. 14 is a schematic perspective view of an elastic member according to a third embodiment of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to 6, the present embodiment provides a linear vibration motor 1000, which includes a housing 10 having an accommodating space 100, a vibration unit 20 disposed in the accommodating space 100, an elastic member 30 suspending the vibration unit 20 in the accommodating space 100, a coil assembly 40 fixed to the housing 10 and driving the vibration unit 20 to vibrate, and a reinforcing block 50.
The housing 10 includes a bottom wall 103, a side wall 101 extending from the periphery of the bottom wall 103, and a cover plate 102 covering one end of the side wall 101 away from the bottom wall 103.
The vibration unit 20 includes a mass block 201 fixedly supported on the elastic member 30 and having a through hole 200, a pole core 202 fixed on an inner side surface of the through hole 200, and a magnetic steel 203 fixed on the pole core 202, and the coil assembly 40 is inserted into the through hole 200 and disposed at an interval with the magnetic steel 203.
The elastic members 30 include two elastic members 30 respectively located at two opposite sides of the vibration unit 20 along the vibration direction thereof, the two elastic members 30 are arranged in a central symmetry manner, each elastic member 30 includes an elastic arm 301, and a first connecting arm 302 and a second connecting arm 303 respectively extending from two opposite ends of the elastic arm 301 in a same direction, and the first connecting arm 302 and the second connecting arm 302 are respectively located at two opposite sides of the vibration unit 20 perpendicular to the vibration direction of the vibration unit 20; the first connecting arm 302 is fixed to the vibration unit 20, the second connecting arm 303 is spaced apart from the vibration unit 20, the second connecting arm 303 includes a body portion 3032 extending by the elastic arm 301 in a bending manner, and a fixing portion 3031 extending by the body portion 3032 in a bending manner in a direction perpendicular to the body portion 3032, and the fixing portion 3031 is fixed to at least one of the bottom wall 103 and the cover plate 102 of the housing 10.
In this embodiment, the fixing portion 3031 is formed by bending and extending one end of the body portion 3032 away from the elastic arm 301 in a direction approaching the vibration unit 20.
Preferably, as shown in fig. 4, the fixing portions 3031 include two fixing portions 3031 respectively disposed at two opposite ends of the main body portion 3032 close to the bottom wall 103 and the cover plate 102, and the two fixing portions 3031 are respectively fixed to the bottom wall 103 and the cover plate 102. At this time, the two fixing portions 3031 can be more firmly fixed to the bottom wall 103 and the cover plate 102, so that the arm of force of elastic deformation of the elastic member is increased, and the elastic deformation stress is effectively reduced.
Of course, referring to fig. 6, the present embodiment further provides an elastic member 30 ', the elastic member 30' has substantially the same structure as the elastic member 30, and includes a spring arm 301 ', a first connecting arm 302' and a second connecting arm 303 'extending from opposite ends of the spring arm 301' and being bent in the same direction, respectively, and the second connecting arm 303 'includes a body portion 3032' extending from the spring arm 301 'and a fixing portion 3031' extending from the body portion 3032 'and being bent perpendicularly to the body portion 3032'. The difference is that there is only one fixing portion 3021 'of each of the second connecting arms 303'.
In this embodiment, the two fixing portions 3031 are fixed to the bottom wall 103 and the cover plate 102 of the housing 10 by gluing on the sides away from the vibration unit 20.
A reinforcing block 50 is located on the side of the first connecting arm 302 remote from the second connecting arm 303, the reinforcing block 50 securing the first connecting arm 302 to the vibration unit 20.
Example two
Referring to fig. 7 to 10, the second embodiment provides a linear vibration motor 1001, which includes a housing 11 having an accommodating space 110, a vibration unit 21 disposed in the accommodating space 110, an elastic member 31 suspending the vibration unit 21 in the accommodating space 110, a coil assembly 41 fixed to the housing 11 and driving the vibration unit 21 to vibrate, a reinforcing block 51, and a solder block 61.
The housing 11 includes a bottom wall 113, a side wall 111 extending from the periphery of the bottom wall 113, and a cover plate 112 covering one end of the side wall 111 away from the bottom wall 113.
The vibration unit 21 includes a mass 211 fixedly supported on the elastic member 31 and having a through hole 210, a pole core 212 fixed on an inner side surface of the through hole 210, and a magnetic steel 213 fixed on the pole core 212, and the coil assembly 41 is inserted into the through hole 210 and disposed at an interval with the magnetic steel 213.
The elastic members 31 include two elastic members 31 respectively located at two opposite sides of the vibration unit 21 along the vibration direction thereof, the two elastic members 31 are arranged in a central symmetry manner, each elastic member 31 includes an elastic arm 311, and a first connecting arm 312 and a second connecting arm 313 respectively extending from two opposite ends of the elastic arm 311 in a same direction, and the first connecting arm 312 and the second connecting arm 312 are respectively located at two opposite sides of the vibration unit 21 perpendicular to the vibration direction of the vibration unit 21; the first connection arm 312 is fixed to the vibration unit 21, the second connection arm 313 is spaced apart from the vibration unit 21, the second connection arm 313 includes a body 3132 bent and extended from the elastic arm 311, and a fixing portion 3131 bent and extended from the body 3132 in a direction perpendicular to the body 3132, and the fixing portion 3131 is fixed to at least one of the bottom wall 113 and the cover plate 112 of the housing 11.
In this embodiment, the fixing portion 3131 is formed by bending and extending an end of the body 3132 away from the elastic arm 311 toward the vibrating unit 21.
Preferably, as shown in fig. 9, the fixing portions 3131 include two fixing portions and are respectively disposed at opposite ends of the body portion 3132 near the bottom wall 113 and the cover plate 112, and the two fixing portions 3131 are respectively fixed to the bottom wall 113 and the cover plate 112.
A reinforcing block 51 is located on the side of the first connecting arm 312 remote from the second connecting arm 313, the reinforcing block 51 securing the first connecting arm 312 to the vibration unit 21.
The fixing portion 3131 is fixed to the case 11 by welding on a side away from the vibration unit 21. The solder bumps 61 are attached to one side of the fixing portion 3131 away from the housing 11 to fix one side of the fixing portion 3131 away from the vibration unit 21 to the bottom wall 113 or the cover plate 112 of the housing 11 by welding, and the solder bumps 61 make the fixing portion 3131 fixed more stably and have better reliability.
EXAMPLE III
Referring to fig. 11 to 14, the third embodiment provides a linear vibration motor 1002, which includes a housing 12 having an accommodating space 120, a vibration unit 22 disposed in the accommodating space 120, an elastic member 32 suspending the vibration unit 22 in the accommodating space 120, a coil assembly 42 fixed to the housing 12 and driving the vibration unit 22 to vibrate, and a reinforcing block 52.
The housing 12 includes a bottom wall 123, a side wall 121 extending from the periphery of the bottom wall 123, and a cover plate 122 covering one end of the side wall 121 away from the bottom wall 123.
The vibration unit 22 includes a mass block 221 fixedly supported on the elastic member 32 and having a through hole 220, a pole core 222 fixed on an inner side surface of the through hole 220, and a magnetic steel 223 fixed on the pole core 222, and the coil assembly 42 is inserted into the through hole 220 and arranged at an interval with the magnetic steel 223.
The two elastic members 32 are respectively located at two opposite sides of the vibration unit 22 along the vibration direction thereof, the two elastic members 32 are arranged in a central symmetry manner, each elastic member 32 includes an elastic arm 321, and a first connecting arm 322 and a second connecting arm 323 which are respectively bent and extended from two opposite ends of the elastic arm 321 in the same direction, and the first connecting arm 322 and the second connecting arm 322 are respectively located at two opposite sides of the vibration unit 22 perpendicular to the vibration direction of the vibration unit 22; the first connecting arm 322 is fixed to the vibrating unit 22, the second connecting arm 323 is spaced apart from the vibrating unit 22, and the second connecting arm 323 includes a body portion 3232 bent and extended from the elastic arm 321, and a fixing portion 3231 bent and extended from the body portion 3232 in a direction perpendicular to the body portion 3232.
In this embodiment, the fixing portion 3231 is formed by bending and extending an end of the main body portion 3232 away from the elastic arm 321 in a direction away from the vibrating unit 22, and is fixed to the side wall 121.
Preferably, the fixing portions 3231 include two and are respectively disposed at two opposite ends of the body portion 3232 close to the bottom wall 123 and the cover plate 122, and the two fixing portions 3231 are fixed to the same side wall 121.
In this embodiment, the fixing portion 3231 is fixed to the side wall 121 of the housing 12 by welding on a side away from the vibration unit 22.
A reinforcing block 52 is located on the side of the first connecting arm 322 remote from the second connecting arm 323, the reinforcing block 52 securing the first connecting arm 322 to the vibration unit 22.
Compared with the prior art, in the linear vibration motor of the present invention, the elastic member includes an elastic arm, and a first connecting arm and a second connecting arm respectively extending from opposite ends of the elastic arm in a same direction, and the first connecting arm and the second connecting arm are respectively located at opposite sides of the vibration unit perpendicular to the vibration direction of the vibration unit; the first connecting arm is fixed in the vibration unit, the second connecting arm and the vibration unit are arranged at intervals, the second connecting arm comprises a body part which is bent and extended by the elastic arm and a fixing part which is bent and extended by the body part along the direction perpendicular to the body part, the fixing part is fixed on the shell, namely the second connecting arm is fixed on the shell through the fixing part which is bent and extended, the force arm of elastic deformation of the elastic part is increased, the elastic deformation stress is effectively reduced, the working amplitude can be further improved, and the vibration quantity of the device is improved.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (10)
1. A linear vibration motor comprises a shell with an accommodating space, a vibration unit arranged in the accommodating space, an elastic part suspending the vibration unit in the accommodating space, and a coil assembly fixed on the shell and driving the vibration unit to vibrate, and is characterized in that the elastic part comprises an elastic arm, a first connecting arm and a second connecting arm, wherein the first connecting arm and the second connecting arm are respectively bent and extended in the same direction from two opposite ends of the elastic arm, and the first connecting arm and the second connecting arm are respectively positioned at two opposite sides of the vibration unit, which are perpendicular to the vibration direction of the vibration unit; the first connecting arm is fixed to the vibration unit, the second connecting arm and the vibration unit are arranged at intervals, the second connecting arm comprises a body portion and a fixing portion, the body portion is bent and extended by the elastic arm, the fixing portion is bent and extended by the body portion along a direction perpendicular to the body portion, and the fixing portion is fixed to the shell.
2. The linear vibration motor of claim 1, wherein the fixing portion is formed by bending and extending an end of the body portion away from the elastic arm toward a direction close to the vibration unit.
3. The linear vibration motor of claim 1, wherein the fixing portion is formed by bending and extending an end of the body portion away from the elastic arm in a direction away from the vibration unit.
4. The linear vibration motor according to claim 2 or 3, wherein the housing includes a bottom wall, a side wall extending from a periphery of the bottom wall in a bent manner, and a cover plate covering an end of the side wall away from the bottom wall, and the fixing portion is fixed to at least one of the bottom wall and the cover plate.
5. The linear vibration motor of claim 4, wherein the fixing portions are two and respectively provided at opposite ends of the body portion near the bottom wall and the cover plate, and the two fixing portions are respectively fixed to the bottom wall and the cover plate.
6. The linear vibration motor of claim 3, wherein the housing includes a bottom wall, a side wall extending from a periphery of the bottom wall, and a cover plate covering an end of the side wall away from the bottom wall, and the fixing portion is fixed to the side wall.
7. The linear vibration motor of claim 6, wherein the fixing portions include two and are respectively disposed at opposite ends of the body portion near the bottom wall and the cover plate, and the two fixing portions are fixed to the same side wall.
8. The linear vibration motor of claim 1, wherein the elastic members include two and are respectively located at opposite sides of the vibration unit along a vibration direction thereof, and the two elastic members are arranged in central symmetry.
9. The linear vibration motor according to claim 1, further comprising a solder bump attached to a side of the fixing portion away from the housing to fix the side of the fixing portion away from the vibration unit to the housing by welding.
10. The linear vibration motor according to claim 1, further comprising a reinforcing block located on a side of the first connection arm away from the second connection arm, the reinforcing block fixing the first connection arm to the vibration unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020209417.XU CN211606361U (en) | 2020-02-25 | 2020-02-25 | Linear vibration motor |
| PCT/CN2020/080105 WO2021168940A1 (en) | 2020-02-25 | 2020-03-19 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020209417.XU CN211606361U (en) | 2020-02-25 | 2020-02-25 | Linear vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211606361U true CN211606361U (en) | 2020-09-29 |
Family
ID=72581577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020209417.XU Expired - Fee Related CN211606361U (en) | 2020-02-25 | 2020-02-25 | Linear vibration motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211606361U (en) |
| WO (1) | WO2021168940A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201708677U (en) * | 2009-10-19 | 2011-01-12 | 常州美欧电子有限公司 | Flat linear vibration motor |
| KR101796094B1 (en) * | 2010-09-01 | 2017-11-09 | 주식회사 이엠텍 | Horizental vibration motor |
| CN206775359U (en) * | 2017-04-14 | 2017-12-19 | 瑞声科技（南京）有限公司 | Linear vibration electric motor |
| CN208508758U (en) * | 2017-11-25 | 2019-02-15 | 歌尔科技有限公司 | A kind of linear vibration motor |
-
2020
- 2020-02-25 CN CN202020209417.XU patent/CN211606361U/en not_active Expired - Fee Related
- 2020-03-19 WO PCT/CN2020/080105 patent/WO2021168940A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2021168940A1 (en) | 2021-09-02 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |