WO2024113565A1 - 一种振动马达 - Google Patents
一种振动马达 Download PDFInfo
- Publication number
- WO2024113565A1 WO2024113565A1 PCT/CN2023/084842 CN2023084842W WO2024113565A1 WO 2024113565 A1 WO2024113565 A1 WO 2024113565A1 CN 2023084842 W CN2023084842 W CN 2023084842W WO 2024113565 A1 WO2024113565 A1 WO 2024113565A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fixing portion
- vibrator assembly
- vibration motor
- shell
- metal plate
- Prior art date
Links
- 238000013016 damping Methods 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 39
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 239000011553 magnetic fluid Substances 0.000 description 5
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 2
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Definitions
- the invention relates to the field of motors, and in particular to a vibration motor.
- the vibration motor of the related art includes a housing with a receiving space, a stator assembly fixed in the housing, a vibrator assembly received in the housing and driven to vibrate by the stator assembly, a leaf spring connecting the housing and the vibrator assembly, and a magnetic fluid disposed between the stator assembly and the vibrator assembly for adjusting the vibration damping of the vibrator assembly.
- the material cost of the magnetic fluid is high, and in addition, the position of the magnetic fluid cannot be effectively controlled due to the influence of the magnetic field, and the reliability and consistency of the product are poor.
- the object of the present invention is to overcome the above technical problems and provide a vibration motor that can reduce material costs and improve product reliability and consistency.
- the present invention provides a vibration motor, which includes a shell with a containing space, a stator assembly fixed in the shell, a vibrator assembly contained in the shell and driven to vibrate by the stator assembly, and a leaf spring connecting the shell and the vibrator assembly,
- the leaf spring includes an external fixing part fixed to the shell, an internal fixing part fixed to the vibrator assembly, and an elastic arm connecting the external fixing part and the internal fixing part, the elastic arm extends from the internal fixing part to the external fixing part in a manner rotating around the internal fixing part
- the vibration motor also includes a damping glue arranged between two adjacent elastic arms for adjusting the vibration damping of the vibrator assembly.
- three elastic arms are provided, and the three elastic arms are distributed around the inner fixing portion at equal intervals of 120°.
- two leaf springs are provided, namely a first leaf spring connecting the shell and one end of the vibrator assembly, and a second leaf spring connecting the shell and the other end of the vibrator assembly, and the rotation direction of the elastic arm of the first leaf spring is opposite to the rotation direction of the elastic arm of the second leaf spring.
- the leaf spring is integrally stamped from a stainless steel sheet.
- the vibrator assembly includes a bracket, a coil wound on the bracket and a counterweight fixed to the bracket, the bracket is embedded with a metal part, the metal part includes a first metal plate, a second metal plate arranged parallel to and spaced apart from the first metal plate, and a metal column connecting the first metal plate and the second metal plate, the metal column is perpendicular to the first metal plate and extends along the vibration direction of the vibrator assembly, the coil is sleeved on the metal column and is located between the first metal plate and the second metal plate.
- the stator assembly includes a pole core fixed to the housing and a magnetic steel fixed to a surface of the pole core close to the vibrator assembly, and the magnetic steel and the coil are arranged relatively spaced apart.
- the vibration motor of the present invention has damping rubber arranged between two adjacent elastic arms.
- the damping rubber is used instead of magnetic fluid, which reduces material costs and improves product reliability and consistency.
- FIG1 is a perspective view of a vibration motor of the present invention
- FIG2 is an exploded perspective view of the vibration motor shown in FIG1 ;
- Fig. 3 is a cross-sectional view along line A-A in Fig. 1;
- FIG. 4 is a diagram showing a combination of a leaf spring and damping rubber of the vibration motor shown in FIG. 1 .
- the present invention provides a vibration motor 100, which includes a shell 1 with a receiving space, a stator assembly 2 fixed in the shell 1, a vibrator assembly 3 received in the shell 1 and driven to vibrate by the stator assembly 2, and a leaf spring 4 connecting the shell 1 and the vibrator assembly 3.
- the leaf spring 4 includes an outer fixing portion 41 fixed to the shell 1, an inner fixing portion 42 fixed to the vibrator assembly 3, and an elastic arm 43 connecting the outer fixing portion 41 and the inner fixing portion 42, and the elastic arm 43 extends from the inner fixing portion 42 to the outer fixing portion 41 in a manner rotating around the inner fixing portion 42.
- the vibration motor 100 further includes a damping glue 5 disposed between two adjacent elastic arms 43 for adjusting the vibration damping of the vibrator assembly 3 .
- three elastic arms 43 are provided, and the three elastic arms 43 are distributed around the inner fixing portion 42 at equal intervals of 120°.
- the housing 1 includes a frame body 11 , an upper cover 12 connected to the upper end of the frame body 11 , and a lower cover 13 connected to the lower end of the frame body 11 .
- the leaf springs 4 are provided with two, namely, a first leaf spring 401 connecting the housing 1 and the vibrator assembly 3 on one side close to the upper cover 12, and a second leaf spring 402 connecting the housing 1 and the vibrator assembly 3 on the other side close to the lower cover 13.
- the outer fixing portion 41 of the first leaf spring 401 is fixed between the upper cover 12 and the frame 11, and the outer fixing portion 41 of the second leaf spring 402 is fixed between the lower cover 13 and the frame 11.
- the rotation direction of the elastic arm 43 of the first leaf spring 401 is opposite to the rotation direction of the elastic arm 43 of the second leaf spring 402 , so that the vibration balance of the vibrator assembly 3 can be maintained.
- the leaf spring 4 is formed by integrally stamping a stainless steel sheet.
- the vibrator assembly 3 includes a bracket 31, a coil 32 wound on the bracket 31, and a counterweight 33 fixed to the bracket 31.
- a metal member 34 is embedded in the bracket 31.
- the metal member 34 includes a first metal plate 341, a second metal plate 342 arranged parallel to the first metal plate 341 and spaced apart, and a metal column 343 connecting the first metal plate 341 and the second metal plate 342.
- the metal column 343 is perpendicular to the first metal plate 341 and extends along the vibration direction of the vibrator assembly 3.
- the coil 32 is sleeved on the metal column 343 and located between the first metal plate 341 and the second metal plate 342.
- the inner fixing parts 42 of the first leaf spring 401 and the second leaf spring 402 are fixed to the bracket 31 by bolts 6, respectively.
- the stator assembly 2 includes a pole core 21 fixed to the frame 11 and a magnetic steel 22 fixed to a surface of the pole core 21 close to the vibrator assembly 3 .
- the magnetic steel 22 and the coil 32 are arranged relatively spaced apart.
- the vibration motor of the present invention has damping rubber arranged between two adjacent elastic arms.
- the damping rubber is used instead of magnetic fluid, which reduces material costs and improves product reliability and consistency.
Landscapes
- Engineering & Computer Science (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
本发明提供了一种振动马达，其包括具有收容空间的壳体、固定于壳体内的定子组件、收容于壳体内由定子组件驱动振动的振子组件、以及连接壳体和振子组件的片簧，片簧包括固定于壳体的外固定部、固定于振子组件的内固定部、以及连接外固定部和内固定部的弹性臂，弹性臂自内固定部以围绕内固定部旋转的方式延伸至外固定部，振动马达还包括设置在相邻的两个弹性臂之间的用于调节振子组件的振动阻尼的阻尼胶。本发明的振动马达降低了物料成本、提高了产品的可靠性和一致性。
Description
【
技术领域】
本发明涉及马达领域，尤其涉及一种振动马达。
【
背景技术】
相关技术的振动马达包括具有收容空间的壳体、固定于壳体内的定子组件、收容于壳体内由定子组件驱动振动的振子组件、连接壳体和振子组件的片簧、以及设置在定子组件和振子组件之间的用于调节振子组件的振动阻尼的磁液。然而，磁液的物料成本高，此外，磁液的位置受磁场影响无法有效控制，产品的可靠性和一致性不佳。
因此，实有必要提供一种新的振动马达解决上述技术问题。
【
发明内容】
本发明的目的是克服上述技术问题，提供一种能够降低物料成本、提高产品可靠性和一致性的振动马达。
为了实现上述目的，本发明提供一种振动马达，其包括具有收容空间的壳体、固定于所述壳体内的定子组件、收容于所述壳体内由所述定子组件驱动振动的振子组件、以及连接所述壳体和所述振子组件的片簧，所述片簧包括固定于所述壳体的外固定部、固定于所述振子组件的内固定部、以及连接所述外固定部和所述内固定部的弹性臂，所述弹性臂自所述内固定部以围绕所述内固定部旋转的方式延伸至所述外固定部，所述振动马达还包括设置在相邻的两个所述弹性臂之间的用于调节所述振子组件的振动阻尼的阻尼胶。
优选的，所述弹性臂设有三个，三个所述弹性臂围绕所述内固定部以120°等间隔分布。
优选的，所述片簧设有两个，分别是连接所述壳体和所述振子组件的一侧端部的第一片簧、以及连接所述壳体和所述振子组件的另一侧端部的第二片簧，所述第一片簧的弹性臂的旋转方向与所述第二片簧的弹性臂的旋转方向相反。
优选的，所述片簧是由不锈钢片一体冲压成型。
优选的，所述振子组件包括支架、绕制于所述支架的线圈和固定于所述支架的配重块，所述支架内嵌设有金属件，所述金属件包括第一金属板、与所述第一金属板平行间隔设置的第二金属板、以及连接所述第一金属板和所述第二金属板的金属柱，所述金属柱垂直于所述第一金属板且沿所述振子组件的振动方向延伸，所述线圈套设于所述金属柱且位于所述第一金属板和所述第二金属板之间。
优选的，所述定子组件包括固定于所述壳体的极芯和固定于所述极芯靠近所述振子组件的表面的磁钢，所述磁钢和所述线圈相对间隔设置。
本发明的振动马达，在相邻的两个弹性臂之间设置阻尼胶，振子组件振动时，相邻的两个弹性臂之间存在位移差，从而会对之间的阻尼胶产生拉伸和压缩，起到调节振子组件的振动阻尼的作用，利用阻尼胶替代磁液，降低了物料成本、提高了产品的可靠性和一致性。
【
附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本发明领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本发明的振动马达的立体图；
图2为图1所示振动马达的立体分解图；
图3为沿图1中A-A线的剖面视图；
图4为图1所示振动马达的片簧和阻尼胶的组合图。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本发明领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请参阅图1-4所示，本发明提供一种振动马达100，所述振动马达100包括具有收容空间的壳体1、固定于所述壳体1内的定子组件2、收容于所述壳体1内由所述定子组件2驱动振动的振子组件3、以及连接所述壳体1和所述振子组件3的片簧4。
所述片簧4包括固定于所述壳体1的外固定部41、固定于所述振子组件3的内固定部42、以及连接所述外固定部41和所述内固定部42的弹性臂43，所述弹性臂43自所述内固定部42以围绕所述内固定部42旋转的方式延伸至所述外固定部41。
所述振动马达100还包括设置在相邻的两个所述弹性臂43之间的用于调节所述振子组件3的振动阻尼的阻尼胶5。
在本实施方式中，所述弹性臂43设有三个，三个所述弹性臂43围绕所述内固定部42以120°等间隔分布。
所述壳体1包括框体11、以及盖接于所述框体11的上端的上盖12和盖接于所述框体11的下端的下盖13。
所述片簧4设有两个，分别是连接所述壳体1和所述振子组件3靠近所述上盖12的一侧端部的第一片簧401、以及连接所述壳体1和所述振子组件3靠近所述下盖13的另一侧端部的第二片簧402。所述第一片簧401的外固定部41固定于所述上盖12和所述框体11之间，所述第二片簧402的外固定部41固定于所述下盖13和所述框体11之间。
优选的，所述第一片簧401的弹性臂43的旋转方向与所述第二片簧402的弹性臂43的旋转方向相反，这样可以保持所述振子组件3的振动平衡。
所述片簧4是由不锈钢片一体冲压成型。
所述振子组件3包括支架31、绕制于所述支架31的线圈32和固定于所述支架31的配重块33，所述支架31内嵌设有金属件34，所述金属件34包括第一金属板341、与所述第一金属板341平行间隔设置的第二金属板342、以及连接所述第一金属板341和所述第二金属板342的金属柱343，所述金属柱343垂直于所述第一金属板341且沿所述振子组件3的振动方向延伸，所述线圈32套设于所述金属柱343且位于所述第一金属板341和所述第二金属板342之间。所述第一片簧401和所述第二片簧402的内固定部42分别通过螺栓6固定于所述支架31。
所述定子组件2包括固定于所述框体11的极芯21和固定于所述极芯21靠近所述振子组件3的表面的磁钢22，所述磁钢22和所述线圈32相对间隔设置。
本发明的振动马达，在相邻的两个弹性臂之间设置阻尼胶，振子组件振动时，相邻的两个弹性臂之间存在位移差，从而会对之间的阻尼胶产生拉伸和压缩，起到调节振子组件的振动阻尼的作用，利用阻尼胶替代磁液，降低了物料成本、提高了产品的可靠性和一致性。
以上所述的仅是本发明的实施方式，在此应当指出，对于本发明领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。
Claims (6)
- 一种振动马达，其包括具有收容空间的壳体、固定于所述壳体内的定子组件、收容于所述壳体内由所述定子组件驱动振动的振子组件、以及连接所述壳体和所述振子组件的片簧，所述片簧包括固定于所述壳体的外固定部、固定于所述振子组件的内固定部、以及连接所述外固定部和所述内固定部的弹性臂，所述弹性臂自所述内固定部以围绕所述内固定部旋转的方式延伸至所述外固定部，其特征在于，所述振动马达还包括设置在相邻的两个所述弹性臂之间的用于调节所述振子组件的振动阻尼的阻尼胶。
- 根据权利要求1所述的振动马达，其特征在于，所述弹性臂设有三个，三个所述弹性臂围绕所述内固定部以120°等间隔分布。
- 根据权利要求1所述的振动马达，其特征在于，所述片簧设有两个，分别是连接所述壳体和所述振子组件的一侧端部的第一片簧、以及连接所述壳体和所述振子组件的另一侧端部的第二片簧，所述第一片簧的弹性臂的旋转方向与所述第二片簧的弹性臂的旋转方向相反。
- 根据权利要求1所述的振动马达，其特征在于，所述片簧是由不锈钢片一体冲压成型。
- 根据权利要求1所述的振动马达，其特征在于，所述振子组件包括支架、绕制于所述支架的线圈和固定于所述支架的配重块，所述支架内嵌设有金属件，所述金属件包括第一金属板、与所述第一金属板平行间隔设置的第二金属板、以及连接所述第一金属板和所述第二金属板的金属柱，所述金属柱垂直于所述第一金属板且沿所述振子组件的振动方向延伸，所述线圈套设于所述金属柱且位于所述第一金属板和所述第二金属板之间。
- 根据权利要求5所述的振动马达，其特征在于，所述定子组件包括固定于所述壳体的极芯和固定于所述极芯靠近所述振子组件的表面的磁钢，所述磁钢和所述线圈相对间隔设置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/320,174 US20240178734A1 (en) | 2022-11-30 | 2023-05-18 | Vibration motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223200843.5 | 2022-11-30 | ||
| CN202223200843.5U CN218920176U (zh) | 2022-11-30 | 2022-11-30 | 一种振动马达 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/320,174 Continuation US20240178734A1 (en) | 2022-11-30 | 2023-05-18 | Vibration motor |
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| Publication Number | Publication Date |
|---|---|
| WO2024113565A1 true WO2024113565A1 (zh) | 2024-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2023/084842 WO2024113565A1 (zh) | 2022-11-30 | 2023-03-29 | 一种振动马达 |
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| Country | Link |
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| CN (1) | CN218920176U (zh) |
| WO (1) | WO2024113565A1 (zh) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201491211U (zh) * | 2009-08-25 | 2010-05-26 | 歌尔声学股份有限公司 | 可振动器件磁路系统的弹性支撑装置 |
| WO2019131180A1 (ja) * | 2017-12-27 | 2019-07-04 | 日本電産セイミツ株式会社 | 振動モータ |
| CN209072304U (zh) * | 2018-08-03 | 2019-07-05 | 瑞声科技（南京）有限公司 | 线性振动电机 |
| CN215186388U (zh) * | 2020-12-28 | 2021-12-14 | 歌尔股份有限公司 | 一种线性振动马达 |
-
2022
- 2022-11-30 CN CN202223200843.5U patent/CN218920176U/zh active Active
-
2023
- 2023-03-29 WO PCT/CN2023/084842 patent/WO2024113565A1/zh unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201491211U (zh) * | 2009-08-25 | 2010-05-26 | 歌尔声学股份有限公司 | 可振动器件磁路系统的弹性支撑装置 |
| WO2019131180A1 (ja) * | 2017-12-27 | 2019-07-04 | 日本電産セイミツ株式会社 | 振動モータ |
| CN209072304U (zh) * | 2018-08-03 | 2019-07-05 | 瑞声科技（南京）有限公司 | 线性振动电机 |
| CN215186388U (zh) * | 2020-12-28 | 2021-12-14 | 歌尔股份有限公司 | 一种线性振动马达 |
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| Publication number | Publication date |
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| CN218920176U (zh) | 2023-04-25 |
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