WO2021168940A1 - 线性振动电机 - Google Patents

线性振动电机 Download PDF

Info

Publication number
WO2021168940A1
WO2021168940A1 PCT/CN2020/080105 CN2020080105W WO2021168940A1 WO 2021168940 A1 WO2021168940 A1 WO 2021168940A1 CN 2020080105 W CN2020080105 W CN 2020080105W WO 2021168940 A1 WO2021168940 A1 WO 2021168940A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting arm
fixed
housing
vibration unit
elastic
Prior art date
Application number
PCT/CN2020/080105
Other languages
English (en)
French (fr)
Inventor
毛路斌
马杰
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2021168940A1 publication Critical patent/WO2021168940A1/zh

Links

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

Definitions

  • the utility model relates to a vibration motor, in particular to a linear vibration motor used for portable consumer electronic products.
  • vibration motors for system feedback, such as mobile phones. Incoming call reminder, information reminder, navigation reminder, vibration feedback of game console, etc.
  • vibration motor to have high performance, good stability and long service life.
  • a related art linear vibration motor which includes a housing with a housing space, a vibration unit placed in the housing space, an elastic member that suspends the vibration unit in the housing space, and a housing fixed to the housing.
  • the coil assembly that drives the vibration unit to vibrate, the elastic member includes an elastic arm, a first connecting arm and a second connecting arm that are respectively bent and extended in the same direction from opposite ends of the elastic arm; the first connecting arm Fixed to the vibration unit, and the second connecting arm is fixed to the housing.
  • the second connecting arm since the second connecting arm has a flat structure as a whole and is directly attached and fixed to the side wall of the housing, when the vibration unit vibrates, the stress when the elastic member is elastically deformed is relatively high. It is difficult to further increase the working amplitude.
  • the purpose of the utility model is to provide a linear vibration motor that can effectively reduce the elastic deformation stress of the elastic member and increase the vibration amplitude.
  • the present invention provides a linear vibration motor, which includes a housing with a housing space, a vibration unit placed in the housing space, and elasticity for suspending the vibration unit in the housing space. And a coil assembly fixed to the housing and driving the vibration unit to vibrate.
  • the elastic member includes an elastic arm, a first connecting arm and a second connecting arm that are respectively bent and extended in the same direction from opposite ends of the elastic arm.
  • Connecting arms, the first connecting arm and the second connecting arm are respectively located on opposite sides of the vibrating unit perpendicular to the vibration direction; the first connecting arm is fixed to the vibrating unit, the second The connecting arm is spaced apart from the vibration unit, and the second connecting arm includes a body part bent and extended by the elastic arm and a fixing part bent and extended by the body part in a direction perpendicular to the body part, so The fixing part is fixed to the housing.
  • the fixing portion is formed by bending and extending an end of the body portion away from the elastic arm in a direction approaching the vibrating unit.
  • 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 vibrating unit.
  • the housing includes a bottom wall, a side wall bent and extended from the 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 bottom wall And at least one of the cover plates.
  • the fixing parts include two and are respectively arranged at opposite ends of the main body part close to the bottom wall and the cover plate, and the two fixing parts are respectively fixed to the bottom wall and the cover. Cover plate.
  • the housing includes a bottom wall, a side wall bent and extended from the 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 .
  • the fixing parts include two and are respectively provided at opposite ends of the body part close to the bottom wall and the cover plate, and the two fixing parts are fixed to the same side wall.
  • the elastic members include two and are respectively located on two opposite sides of the vibration unit along the vibration direction thereof, and the two elastic members are arranged symmetrically in the center.
  • the linear vibration motor further includes a solder bump, the solder bump is 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 by welding The housing.
  • the linear vibration motor further includes a reinforcing block 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.
  • the elastic member includes an elastic arm, a first connecting arm and a second connecting arm that are respectively bent and extended in the same direction from opposite ends of the elastic arm, so The first connecting arm and the second connecting arm are respectively located on opposite sides of the vibration unit perpendicular to the vibration direction; the first connecting arm is fixed to the vibration unit, and the second connecting arm is connected to the vibration unit.
  • the vibration units are arranged at intervals, and the second connecting arm includes a body part bent and extended by the elastic arm and a fixing part bent and extended by the body part in a direction perpendicular to the body part; the fixing part is fixed In the housing, that is, the second connecting arm is fixed to the housing through a fixed portion extending by bending, an elastic deformation arm of the elastic member is increased, the elastic deformation stress is effectively reduced, the working amplitude can be further improved, and the device vibration can be improved. quantity.
  • Figure 1 is an exploded view of a part of the three-dimensional structure of the first embodiment of the linear vibration motor of the utility model
  • Figure 2 is an exploded view of another part of the three-dimensional structure of the first embodiment of the linear vibration motor of the utility model
  • FIG. 3 is a schematic diagram of the three-dimensional structure of the first embodiment of the linear vibration motor of the present invention.
  • Figure 4 is a cross-sectional view taken along line A-A in Figure 3;
  • FIG. 5 is a schematic diagram of a three-dimensional structure of an elastic member in the first embodiment of the linear vibration motor of the present invention
  • FIG. 6 is a schematic diagram of the three-dimensional structure of another elastic member in the first embodiment of the linear vibration motor of the present invention.
  • Figure 7 is an exploded view of a part of the three-dimensional structure of the second embodiment of the linear vibration motor of the utility model
  • FIG. 8 is a schematic diagram of the three-dimensional structure of the second embodiment of the linear vibration motor of the utility model
  • Figure 9 is a sectional view taken along the line B-B in Figure 8.
  • FIG. 10 is a schematic diagram of the three-dimensional structure of the elastic member of the second embodiment of the linear vibration motor of the present invention.
  • FIG. 11 is an exploded view of a part of the three-dimensional structure of the third embodiment of the linear vibration motor of the utility model
  • Figure 12 is a three-dimensional schematic diagram of the third embodiment of the linear vibration motor of the utility model
  • Figure 13 is a cross-sectional view taken along line C-C in Figure 12;
  • FIG. 14 is a schematic diagram of the three-dimensional structure of the elastic member in the third embodiment of the linear vibration motor of the present invention.
  • the first embodiment provides a linear vibration motor 1000, which includes a housing 10 having a housing space 100, a vibration unit 20 placed in the housing space 100, and the vibration unit 20.
  • An elastic member 30 suspended 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 bent and extended from the periphery of the bottom wall 103, and a cover plate 102 covering an end of the side wall 101 away from the bottom wall 103.
  • the vibration unit 20 includes a mass 201 fixedly supported on the elastic member 30 and having a through hole 200, a pole core 202 fixed on the inner surface of the through hole 200, and a magnetic steel 203 fixed on the pole core 202,
  • the coil assembly 40 is inserted into the through hole 200 and is spaced apart from the magnetic steel 203.
  • the elastic members 30 include two and are respectively located on opposite sides of the vibration unit 20 along its vibration direction.
  • the two elastic members 30 are arranged symmetrically in the center.
  • Each elastic member 30 includes an elastic arm 301,
  • the first connecting arm 302 and the second connecting arm 303 are respectively bent and extended in the same direction at opposite ends of the elastic arm 301, and the first connecting arm 302 and the second connecting arm 302 are respectively located in the vibration unit 20.
  • the first connecting arm 302 is fixed to the vibrating unit 20
  • the second connecting arm 303 is spaced apart from the vibrating unit 20
  • the second connecting arm 303 includes The body part 3032 bent and extended by the elastic arm 301 and the fixing part 3031 bent and extended in the direction perpendicular to the body part 3032 by the body part 3032, the fixing part 3031 is fixed to the housing 10 At least one of the bottom wall 103 and the cover plate 102.
  • the fixing portion 3031 is formed by bending and extending an end of the body portion 3032 away from the elastic arm 301 toward the direction of the vibrating unit 20.
  • the fixing portion 3031 includes two and is respectively provided at opposite ends of the body portion 3032 close to the bottom wall 103 and the cover plate 102, and the two fixing portions 3031 is fixed to the bottom wall 103 and the cover plate 102 respectively.
  • the two fixing portions 3031 can be more firmly fixed to the bottom wall 103 and the cover plate 102, which increases the force arm for the elastic deformation of the elastic member, and effectively reduces the elastic deformation stress.
  • this embodiment also provides an elastic member 30'.
  • the structure of the elastic member 30' is basically the same as that of the elastic member 30, including an elastic arm 301'.
  • the first connecting arm 302' and the second connecting arm 303' are respectively bent and extended in the same direction.
  • the second connecting arm 303' shown includes a body portion 3032' bent and extended from the elastic arm 301', and The portion 3032' extends along a fixed portion 3031' that is bent and extends perpendicular to the main body portion 3032'. The difference is that there is only one fixing portion 3021' of each second connecting arm 303'.
  • the two fixing parts 3031 are fixed to the bottom wall 103 and the cover 102 of the housing 10 by glue bonding on the side away from the vibration unit 20.
  • the reinforcing block 50 is located on a side of the first connecting arm 302 away from the second connecting arm 303, and the reinforcing block 50 fixes the first connecting arm 302 to the vibration unit 20.
  • the second embodiment provides a linear vibration motor 1001, which includes a housing 11 with a receiving space 110, a vibration unit 21 placed in the receiving space 110, and The vibrating unit 21 is suspended in an elastic member 31 of the receiving space 110, a coil assembly 41 fixed to the housing 11 and driving the vibrating unit 21 to vibrate, a reinforcing block 51 and a soldering block 61.
  • the housing 11 includes a bottom wall 113, a side wall 111 bent and extended from the periphery of the bottom wall 113, and a cover 112 covering an 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 the inner surface of the through hole 210, and a magnetic steel 213 fixed on the pole core 212,
  • the coil assembly 41 is inserted into the through hole 210 and is spaced apart from the magnetic steel 213.
  • the elastic members 31 include two and are respectively located on opposite sides of the vibration unit 21 along its vibration direction.
  • the two elastic members 31 are arranged symmetrically in the center.
  • Each elastic member 31 includes an elastic arm 311,
  • the opposite ends of the elastic arm 311 are respectively bent and extended in the same direction as a first connecting arm 312 and a second connecting arm 313, and the first connecting arm 312 and the second connecting arm 312 are respectively located in the vibration unit 21 Perpendicular to opposite sides of the vibration direction;
  • the first connecting arm 312 is fixed to the vibrating unit 21,
  • the second connecting arm 313 is spaced apart from the vibrating unit 21, and
  • the second connecting arm 313 includes The body part 3132 bent and extended by the elastic arm 311 and the fixing part 3131 bent and extended in the direction perpendicular to the body part 3132 by the body part 3132, the fixing part 3131 is fixed to the housing 11 At least one of the bottom wall 113 and the cover 112.
  • the fixing portion 3131 is formed by bending and extending an end of the body portion 3132 away from the elastic arm 311 in a direction approaching the vibrating unit 21.
  • the fixing portion 3131 includes two and is respectively provided at opposite ends of the body portion 3132 close to the bottom wall 113 and the cover 112, and the two fixing portions The 3131 is fixed to the bottom wall 113 and the cover 112 respectively.
  • the reinforcing block 51 is located on a side of the first connecting arm 312 away from the second connecting arm 313, and the reinforcing block 51 fixes the first connecting arm 312 to the vibration unit 21.
  • the side of the fixing portion 3131 away from the vibration unit 21 is fixed to the housing 11 by welding.
  • the solder bump 61 is attached to the side of the fixed portion 3131 away from the housing 11 to fix the side of the fixed portion 3131 away from the vibration unit 21 to the side of the housing 11 by welding.
  • the bottom wall 113 or the cover 112, and the solder bumps 61 make the fixing portion 3131 more stable and reliable.
  • the third embodiment provides a linear vibration motor 1002, which includes a housing 12 with a housing space 120, a vibration unit 22 placed in the housing space 120, the vibration unit 22.
  • An elastic member 32 suspended in the receiving 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 bent and extended from the periphery of the bottom wall 123, and a cover plate 122 covering an end of the side wall 121 away from the bottom wall 123.
  • the vibration unit 22 includes a mass 221 fixedly supported on the elastic member 32 and having a through hole 220, a pole core 222 fixed on the inner surface of the through hole 220, and a magnetic steel 223 fixed on the pole core 222,
  • the coil assembly 42 is inserted into the through hole 220 and is spaced apart from the magnetic steel 223.
  • the elastic members 32 include two and are respectively located on opposite sides of the vibrating unit 22 along its vibration direction.
  • the two elastic members 32 are arranged symmetrically in the center.
  • Each elastic member 32 includes an elastic arm 321,
  • the first connecting arm 322 and the second connecting arm 323 are respectively bent and extended in the same direction at opposite ends of the elastic arm 321.
  • the first connecting arm 322 and the second connecting arm 322 are respectively located in the vibrating 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 The body portion 3232 bent and extended by the elastic arm 321 and the fixing portion 3231 bent and extended by the body portion 3232 in a direction perpendicular to the body portion 3232.
  • the fixing portion 3231 is formed by bending and extending an end of the 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.
  • the fixing portion 3231 includes two and is respectively provided at opposite ends of the body portion 3232 close to the bottom wall 123 and the cover 122, and the two fixing portions 3231 are fixed to the same The side wall 121.
  • the side of the fixing portion 3231 away from the vibration unit 22 is fixed to the side wall 121 of the housing 12 by welding.
  • the reinforcing block 52 is located on a side of the first connecting arm 322 away from the second connecting arm 323, and the reinforcing block 52 fixes the first connecting arm 322 to the vibration unit 22.
  • the elastic member includes an elastic arm, a first connecting arm and a second connecting arm that are respectively bent and extended in the same direction from opposite ends of the elastic arm, so The first connecting arm and the second connecting arm are respectively located on opposite sides of the vibration unit perpendicular to the vibration direction; the first connecting arm is fixed to the vibration unit, and the second connecting arm is connected to the vibration unit.
  • the vibrating units are arranged at intervals, and the second connecting arm includes a body part bent and extended by the elastic arm and a fixing part bent and extended from the body part perpendicular to the body part, and the fixing part is fixed to
  • the housing that is, the second connecting arm is fixed to the housing through a fixed portion extending by bending, which increases the force arm for elastic deformation of the elastic member, effectively reduces the elastic deformation stress, can further increase the working amplitude, and increase the vibration of the device. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

本实用新型提供了一种线性振动电机，其包括具有收容空间的壳体、置于收容空间内的振动单元、将振动单元悬置于收容空间的弹性件以及固定于壳体并驱动振动单元振动的线圈组件，弹性件包括弹臂、由弹臂的相对两端分别同向弯折延伸的第一连接臂和第二连接臂，第一连接臂与第二连接臂分别位于振动单元的相对两侧；第一连接臂固定于振动单元，第二连接臂与振动单元间隔设置，第二连接臂包括由弹臂弯折延伸的本体部以及由本体部沿垂直于本体部方向弯折延伸的固定部，固定部固定于壳体。与相关技术比，本实用新型的线性振动电机能有效降低弹性件弹性变形应力且振动幅度增加。

Description

线性振动电机 技术领域
本实用新型涉及一种振动电机，尤其涉及一种用于便携式消费性电子产品的线性振动电机。
 背景技术
随着电子技术的发展，便携式消费性电子产品越来越受人们的追捧，如手机、掌上游戏机、导航装置或掌上多媒体娱乐设备等，一般都会用到振动电机来做系统反馈，比如手机的来电提示、信息提示、导航提示、游戏机的振动反馈等。如此广泛的应用，就要求振动电机的性能高，稳定性好且使用寿命长。
相关技术的线性振动电机，其包括具有收容空间的壳体、置于所述收容空间内的振动单元、将所述振动单元悬置于所述收容空间的弹性件以及固定于所述壳体并驱动所述振动单元振动的线圈组件，所述弹性件包括弹臂、由所述弹臂的相对两端分别同向弯折延伸的第一连接臂和第二连接臂；所述第一连接臂固定于所述振动单元，所述第二连接臂固定于所述壳体。
 技术问题
然而，相关技术的线性振动电机中，由于所述第二连接臂整体为平板状结构且直接贴合固定于所述壳体侧壁，所述振动单元振动时所述弹性件弹性变形时应力较大，工作振幅难以进一步提升。
因此，实有必要提供一种新的线性振动电机解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种能有效降低所述弹性件弹性变形应力且振动幅度增加的线性振动电机。
为了达到上述目的，本实用新型提供了一种线性振动电机，其包括具有收容空间的壳体、置于所述收容空间内的振动单元、将所述振动单元悬置于所述收容空间的弹性件以及固定于所述壳体并驱动所述振动单元振动的线圈组件，所述弹性件包括弹臂、由所述弹臂的相对两端分别同向弯折延伸的第一连接臂和第二连接臂，所述第一连接臂与所述第二连接臂分别位于所述振动单元垂直于所述振动方向的相对两侧；所述第一连接臂固定于所述振动单元，所述第二连接臂与所述振动单元间隔设置，所述第二连接臂包括由所述弹臂弯折延伸的本体部以及由所述本体部沿垂直于所述本体部方向弯折延伸的固定部，所述固定部固定于所述壳体。
优选的，所述固定部由所述本体部远离所述弹臂的一端向靠近所述振动单元方向弯折延伸形成。
优选的，所述固定部由所述本体部远离所述弹臂的一端向远离所述振动单元方向弯折延伸形成。
优选的，所述壳体包括底壁、由底壁的周缘弯折延伸的侧壁以及盖设于所述侧壁远离所述底壁一端的盖板，所述固定部固定于所述底壁和所述盖板中的至少一个。
优选的，所述固定部包括两个且分别设置于所述本体部的靠近所述底壁和所述盖板的相对两端，两个所述固定部分别固定于所述底壁和所述盖板。
优选的，所述壳体包括底壁、由底壁的周缘弯折延伸的侧壁以及盖设于所述侧壁远离所述底壁一端的盖板，所述固定部固定于所述侧壁。
优选的，所述固定部包括两个且分别设置于所述本体部的靠近所述底壁和所述盖板的相对两端，两个所述固定部固定于同一所述侧壁。
优选的，所述弹性件包括两个且分别位于所述振动单元沿其振动方向的相对两侧，两个所述弹性件呈中心对称设置。
优选的，所述线性振动电机还包括焊块，所述焊块贴设于所述固定部远离所述壳体的一侧以将所述固定部远离所述振动单元的一侧通过焊接固定于所述壳体。
优选的，所述线性振动电机还包括加强块，所述加强块位于所述第一连接臂远离所述第二连接臂的一侧，所述加强块将所述第一连接臂固定于所述振动单元。
 有益效果
与相关技术相比，本实用新型的线性振动电机中，所述弹性件包括弹臂、由所述弹臂的相对两端分别同向弯折延伸的第一连接臂和第二连接臂，所述第一连接臂与所述第二连接臂分别位于所述振动单元垂直于所述振动方向的相对两侧；所述第一连接臂固定于所述振动单元，所述第二连接臂与所述振动单元间隔设置，所述第二连接臂包括由所述弹臂弯折延伸的本体部以及由所述本体部沿垂直于所述本体部方向弯折延伸的固定部；所述固定部固定于所述壳体，即第二连接臂通过弯折延伸的固定部固定于所述壳体，增加了弹性件弹性变形的力臂，有效降低弹性变形应力，可进一步提升工作振幅，提高器件振动量。
 附图说明
为了更清楚地说明本实用新型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实用新型的一些实施例，对于本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为本实用新型线性振动电机实施例一的部分立体结构分解图；
图2为本实用新型线性振动电机实施例一的另一部分立体结构分解图；
图3为本实用新型线性振动电机实施例一的立体结构示意图；
图4为沿图3中A-A线的剖示图；
图5为本实用新型线性振动电机实施例一的一种弹性件的立体结构示意图；
图6为本实用新型线性振动电机实施例一的另一种弹性件的立体结构示意图；
图7为本实用新型线性振动电机实施例二的部分立体结构分解图；
图8为本实用新型线性振动电机实施例二的立体结构示意图；
图9为沿图8中B-B线的剖示图；
图10为本实用新型线性振动电机实施例二的弹性件的立体结构示意图；
图11为本实用新型线性振动电机实施例三的部分立体结构分解图；
图12为本实用新型线性振动电机实施例三的立体结构示意图；
图13为沿图12中C-C线的剖示图；
图14为本实用新型线性振动电机实施例三的弹性件的立体结构示意图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型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实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本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，都属于本实用新型保护的范围。
实施例一
请同时参阅图1-6，本实施例一提供了一种线性振动电机1000，其包括具有收容空间100的壳体10、置于所述收容空间100内的振动单元20、将所述振动单元20悬置于所述收容空间100的弹性件30、固定于所述壳体10并驱动所述振动单元20振动的线圈组件40以及加强块50。
所述壳体10包括底壁103、由底壁103的周缘弯折延伸的侧壁101以及盖设于所述侧壁101远离所述底壁103一端的盖板102。
所述振动单元20包括固定支撑于所述弹性件30且具有通孔200的质量块201、固定于所述通孔200内侧面的极芯202以及固定于所述极芯202的磁钢203，所述线圈组件40插设于所述通孔200内且与所述磁钢203间隔设置。
所述弹性件30包括两个且分别位于所述振动单元20沿其振动方向的相对两侧，两个所述弹性件30呈中心对称设置，每一所述弹性件30包括弹臂301、由所述弹臂301的相对两端分别同向弯折延伸的第一连接臂302和第二连接臂303，所述第一连接臂302与所述第二连接臂302分别位于所述振动单元20垂直于所述振动方向的相对两侧；所述第一连接臂302固定于所述振动单元20，所述第二连接臂303与所述振动单元20间隔设置，所述第二连接臂303包括由所述弹臂301弯折延伸的本体部3032以及由所述本体部3032沿垂直于所述本体部3032方向弯折延伸的固定部3031，所述固定部3031固定于所述壳体10的底壁103和盖板102中的至少一个。
本实施例中，所述固定部3031由所述本体部3032远离所述弹臂301的一端向靠近所述振动单元20方向弯折延伸形成。
优选的，参图4所示，所述固定部3031包括两个且分别设置于所述本体部3032的靠近所述底壁103和所述盖板102的相对两端，两个所述固定部3031分别固定于所述底壁103和所述盖板102。此时两个所述固定部3031可以更加牢固的固定于所述底壁103和所述盖板102，增加了弹性件弹性变形的力臂，有效降低弹性变形应力。
当然，参图6所示，本实施例还提供一种弹性件30’，弹性件30’于弹性件30的结构基本相同，包括弹臂301’、由所述弹臂301’的相对两端分别同向弯折延伸的第一连接臂302’和第二连接臂303’，所示第二连接臂303’包括自所述弹臂301’弯折延伸的本体部3032’以及由所述本体部3032’沿垂直于所述本体部3032’弯折延伸的固定部3031’。区别点在于每一所述第二连接臂303’的所述固定部3021’只有一个。
本实施例中，两个所述固定部3031远离所述振动单元20的一侧通过胶水粘接分别固定于所述壳体10的底壁103和盖板102。
加强块50位于所述第一连接臂302远离所述第二连接臂303的一侧，所述加强块50将所述第一连接臂302固定于振动单元20。
实施例二
请同时参阅图7-图10，本实施例二提供了提供了一种线性振动电机1001，其包括具有收容空间110的壳体11、置于所述收容空间110内的振动单元21、将所述振动单元21悬置于所述收容空间110的弹性件31、固定于所述壳体11并驱动所述振动单元21振动的线圈组件41、加强块51以及焊块61。
所述壳体11包括底壁113、由底壁113的周缘弯折延伸的侧壁111以及盖设于所述侧壁111远离所述底壁113一端的盖板112。
所述振动单元21包括固定支撑于所述弹性件31且具有通孔210的质量块211、固定于所述通孔210内侧面的极芯212以及固定于所述极芯212的磁钢213，所述线圈组件41插设于所述通孔210内且与所述磁钢213间隔设置。
所述弹性件31包括两个且分别位于所述振动单元21沿其振动方向的相对两侧，两个所述弹性件31呈中心对称设置，每一所述弹性件31包括弹臂311、由所述弹臂311的相对两端分别同向弯折延伸的第一连接臂312和第二连接臂313，所述第一连接臂312与所述第二连接臂312分别位于所述振动单元21垂直于所述振动方向的相对两侧；所述第一连接臂312固定于所述振动单元21，所述第二连接臂313与所述振动单元21间隔设置，所述第二连接臂313包括由所述弹臂311弯折延伸的本体部3132以及由所述本体部3132沿垂直于所述本体部3132方向弯折延伸的固定部3131，所述固定部3131固定于所述壳体11的底壁113和盖板112中的至少一个。
本实施例中，所述固定部3131由所述本体部3132远离所述弹臂311的一端向靠近所述振动单元21方向弯折延伸形成。
优选的，参图9所示，所述固定部3131包括两个且分别设置于所述本体部3132的靠近所述底壁113和所述盖板112的相对两端，两个所述固定部3131分别固定于所述底壁113和所述盖板112。
加强块51位于所述第一连接臂312远离所述第二连接臂313的一侧，所述加强块51将所述第一连接臂312固定于振动单元21。
所述固定部3131远离所述振动单元21的一侧通过焊接固定于所述壳体11。所述焊块61贴设于所述固定部3131远离所述壳体11的一侧以将所述固定部3131远离所述振动单元21的一侧通过焊接固定于所述壳体11的所述底壁113或所述盖板112，所述焊块61使所述固定部3131固定更加稳固，可靠性更好。
实施例三
请同时参阅图11-14，本实施例三提供了一种线性振动电机1002，其包括具有收容空间120的壳体12、置于所述收容空间120内的振动单元22、将所述振动单元22悬置于所述收容空间120的弹性件32、固定于所述壳体12并驱动所述振动单元22振动的线圈组件42以及加强块52。
所述壳体12包括底壁123、由底壁123的周缘弯折延伸的侧壁121以及盖设于所述侧壁121远离所述底壁123一端的盖板122。
所述振动单元22包括固定支撑于所述弹性件32且具有通孔220的质量块221、固定于所述通孔220内侧面的极芯222以及固定于所述极芯222的磁钢223，所述线圈组件42插设于所述通孔220内且与所述磁钢223间隔设置。
所述弹性件32包括两个且分别位于所述振动单元22沿其振动方向的相对两侧，两个所述弹性件32呈中心对称设置，每一所述弹性件32包括弹臂321、由所述弹臂321的相对两端分别同向弯折延伸的第一连接臂322和第二连接臂323，所述第一连接臂322与所述第二连接臂322分别位于所述振动单元22垂直于所述振动方向的相对两侧；所述第一连接臂322固定于所述振动单元22，所述第二连接臂323与所述振动单元22间隔设置，所述第二连接臂323包括由所述弹臂321弯折延伸的本体部3232以及由所述本体部3232沿垂直于所述本体部3232方向弯折延伸的固定部3231。
本实施例中，所述固定部3231由所述本体部3232远离所述弹臂321的一端向远离所述振动单元22方向弯折延伸形成，且固定于所述侧壁121。
优选的，所述固定部3231包括两个且分别设置于所述本体部3232的靠近所述底壁123和所述盖板122的相对两端，两个所述固定部3231固定于同一所述侧壁121。
本实施例中，所述固定部3231远离所述振动单元22的一侧通过焊接固定于所述壳体12的所述侧壁121。
加强块52位于所述第一连接臂322远离所述第二连接臂323的一侧，所述加强块52将所述第一连接臂322固定于振动单元22。
与相关技术相比，本实用新型的线性振动电机中，所述弹性件包括弹臂、由所述弹臂的相对两端分别同向弯折延伸的第一连接臂和第二连接臂，所述第一连接臂与所述第二连接臂分别位于所述振动单元垂直于所述振动方向的相对两侧；所述第一连接臂固定于所述振动单元，所述第二连接臂与所述振动单元间隔设置，所述第二连接臂包括由所述弹臂弯折延伸的本体部以及由所述本体部沿垂直于所述本体部弯折延伸的固定部，所述固定部固定于所述壳体，即第二连接臂通过弯折延伸的固定部固定于所述壳体，增加了弹性件弹性变形的力臂，有效降低弹性变形应力，可进一步提升工作振幅，提高器件振动量。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (10)

  1. 一种线性振动电机，其包括具有收容空间的壳体、置于所述收容空间内的振动单元、将所述振动单元悬置于所述收容空间的弹性件以及固定于所述壳体并驱动所述振动单元振动的线圈组件，其特征在于，所述弹性件包括弹臂、由所述弹臂的相对两端分别同向弯折延伸的第一连接臂和第二连接臂，所述第一连接臂与所述第二连接臂分别位于所述振动单元垂直于所述振动方向的相对两侧；所述第一连接臂固定于所述振动单元，所述第二连接臂与所述振动单元间隔设置，所述第二连接臂包括由所述弹臂弯折延伸的本体部以及由所述本体部沿垂直于所述本体部方向弯折延伸的固定部，所述固定部固定于所述壳体。
  2. 根据权利要求1所述的线性振动电机，其特征在于，所述固定部由所述本体部远离所述弹臂的一端向靠近所述振动单元方向弯折延伸形成。
  3. 根据权利要求1所述的线性振动电机，其特征在于，所述固定部由所述本体部远离所述弹臂的一端向远离所述振动单元方向弯折延伸形成。
  4. 根据权利要求2或3所述的线性振动电机，其特征在于，所述壳体包括底壁、由底壁的周缘弯折延伸的侧壁以及盖设于所述侧壁远离所述底壁一端的盖板，所述固定部固定于所述底壁和所述盖板中的至少一个。
  5. 根据权利要求4所述的线性振动电机，其特征在于，所述固定部包括两个且分别设置于所述本体部的靠近所述底壁和所述盖板的相对两端，两个所述固定部分别固定于所述底壁和所述盖板。
  6. 根据权利要求3所述的线性振动电机，其特征在于，所述壳体包括底壁、由底壁的周缘弯折延伸的侧壁以及盖设于所述侧壁远离所述底壁一端的盖板，所述固定部固定于所述侧壁。
  7. 根据权利要求6所述的线性振动电机，其特征在于，所述固定部包括两个且分别设置于所述本体部的靠近所述底壁和所述盖板的相对两端，两个所述固定部固定于同一所述侧壁。
  8. 根据权利要求1所述的线性振动电机，其特征在于，所述弹性件包括两个且分别位于所述振动单元沿其振动方向的相对两侧，两个所述弹性件呈中心对称设置。
  9. 根据权利要求1所述的线性振动电机，其特征在于，所述线性振动电机还包括焊块，所述焊块贴设于所述固定部远离所述壳体的一侧以将所述固定部远离所述振动单元的一侧通过焊接固定于所述壳体。
  10. 根据权利要求1所述的线性振动电机，其特征在于，所述线性振动电机还包括加强块，所述加强块位于所述第一连接臂远离所述第二连接臂的一侧，所述加强块将所述第一连接臂固定于所述振动单元。
PCT/CN2020/080105 2020-02-25 2020-03-19 线性振动电机 WO2021168940A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020209417.XU CN211606361U (zh) 2020-02-25 2020-02-25 线性振动电机
CN202020209417.X 2020-02-25

Publications (1)

Publication Number Publication Date
WO2021168940A1 true WO2021168940A1 (zh) 2021-09-02

Family

ID=72581577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/080105 WO2021168940A1 (zh) 2020-02-25 2020-03-19 线性振动电机

Country Status (2)

Country Link
CN (1) CN211606361U (zh)
WO (1) WO2021168940A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201708677U (zh) * 2009-10-19 2011-01-12 常州美欧电子有限公司 扁平线性振动电机
CN102386744A (zh) * 2010-09-01 2012-03-21 Lg伊诺特有限公司 水平振动电机
CN206775359U (zh) * 2017-04-14 2017-12-19 瑞声科技（南京）有限公司 线性振动电机
CN208508758U (zh) * 2017-11-25 2019-02-15 歌尔科技有限公司 一种线性振动马达

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201708677U (zh) * 2009-10-19 2011-01-12 常州美欧电子有限公司 扁平线性振动电机
CN102386744A (zh) * 2010-09-01 2012-03-21 Lg伊诺特有限公司 水平振动电机
CN206775359U (zh) * 2017-04-14 2017-12-19 瑞声科技（南京）有限公司 线性振动电机
CN208508758U (zh) * 2017-11-25 2019-02-15 歌尔科技有限公司 一种线性振动马达

Also Published As

Publication number Publication date
CN211606361U (zh) 2020-09-29

Similar Documents

Publication Publication Date Title
US10486196B2 (en) Linear vibrator
US10307791B2 (en) Linear vibrator
JP6193965B2 (ja) マイクロ振動モーター
US10478856B2 (en) Linear vibration motor
CN110266171B (zh) 振动电机
US10447130B2 (en) Linear vibration motor
CN209390352U (zh) 发声器件
CN209389906U (zh) 线性振动电机
WO2020140531A1 (zh) 线性振动电机
CN208638634U (zh) 扬声器
WO2020140533A1 (zh) 线性振动电机
WO2020029637A1 (zh) 扬声器
WO2022000642A1 (zh) 线性振动电机
WO2020140534A1 (zh) 线性振动电机
WO2020134378A1 (zh) 线性振动电机
WO2022267307A1 (zh) 一种线性振动马达
WO2021114307A1 (zh) 线性振动电机
CN111211661B (zh) 线性振动电机
WO2021168940A1 (zh) 线性振动电机
CN107181383A (zh) 振动激励器
CN208638662U (zh) 扬声器
WO2021168939A1 (zh) 线性振动电机
WO2021168938A1 (zh) 线性振动电机
WO2021114122A1 (zh) 发声器件
CN219477823U (zh) 线性振动马达

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20921805

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20921805

Country of ref document: EP

Kind code of ref document: A1