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1. WO2020134377 - LINEAR VIBRATION MOTOR

Publication Number WO/2020/134377
Publication Date 02.07.2020
International Application No. PCT/CN2019/111294
International Filing Date 15.10.2019
IPC
H02K 33/16 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
33Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
16with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
H02K 1/34 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
34Reciprocating, oscillating or vibrating parts of the magnetic circuit
CPC
B06B 1/045
BPERFORMING OPERATIONS; TRANSPORTING
06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, ; e.g.; FOR PERFORMING MECHANICAL WORK IN GENERAL
1Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
02making use of electrical energy
04operating with electromagnetism
045using vibrating magnet, armature or coil system
H02K 1/34
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
34Reciprocating, oscillating or vibrating parts of the magnetic circuit
H02K 33/16
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
33Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
16with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
H02K 33/18
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
33Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
18with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
Applicants
  • 瑞声声学科技(深圳)有限公司 AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD. [CN]/[CN]
  • 瑞声科技(南京)有限公司 AAC TECHNOLOGIES (NANJING) CO., LTD. [CN]/[CN]
Inventors
  • 汤赟 TANG, Yun
  • 毛路斌 MAO, Lubin
Agents
  • 广东广和律师事务所 GUANGDONG GUANGHE LAW FIRM
Priority Data
201811610760.927.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LINEAR VIBRATION MOTOR
(FR) MOTEUR À VIBRATION LINÉAIRES
(ZH) 线性振动电机
Abstract
(EN)
A linear vibration motor (100), comprising a base (1), a vibrating unit (2), an elastic member (3) and a coil assembly (4); the vibrating unit (2) comprising a mass block (21), an accommodation groove (22) penetrating the block along a direction of vibration, and two steel magnets (23) disposed in the accommodation groove (22) and disposed at an interval from one another; the elastic member (3) being located at one side of the vibrating unit (2) along a vibration direction thereof, and connected to the vibrating unit (2); an orthographic projection of the coil assembly (4) along the vibration direction being located between the two steel magnets (23) and disposed at an interval from the two steel magnets (23); the coil assembly (4) comprising an iron core (41) fixed to the base (1) and a coil (42) wrapped around the iron core (41); the two steel magnets (23) both being magnetized along the vibration direction, and the poles of the two steel magnets (23) being oppositely disposed; a magnetism direction of the coil assembly (4) being perpendicular to the vibration direction and parallel to a connecting line between the two steel magnets (23). Compared to the prior art, the described linear vibration motor (100) has better vibration functionality and higher reliability.
(FR)
La présente invention concerne un moteur à vibrations linéaires (100), comprenant une base (1), une unité vibrante (2), un élément élastique (3) et un ensemble bobine (4) ; l'unité vibrante (2) comprenant un bloc de masse (21), une rainure de réception (22) pénétrant dans le bloc le long d'une direction de vibration, et deux aimants en acier (23) disposés dans la rainure de réception (22) et disposés à un certain intervalle l'un de l'autre ; l'élément élastique (3) étant situé sur un côté de l'unité vibrante (2) le long de sa direction de vibration, et relié à l'unité vibrante (2) ; une projection orthographique de l'ensemble bobine (4) le long de la direction de vibration étant située entre les deux aimants en acier (23) et disposée à un certain intervalle des deux aimants en acier (23) ; l'ensemble bobine (4) comprenant un noyau de fer (41) fixé à la base (1) et une bobine (42) enroulée autour du noyau de fer (41) ; les deux aimants en acier (23) étant tous deux magnétisés le long de la direction de vibration, et les pôles des deux aimants en acier (23) étant disposés de façon opposée ; une direction de magnétisme de l'ensemble bobine (4) étant perpendiculaire à la direction de vibration et parallèle à une ligne de liaison entre les deux aimants en acier (23). Par rapport à l'état de la technique, le moteur à vibrations linéaires de la présente invention (100) a une meilleure fonctionnalité vibratoire et une plus grande fiabilité.
(ZH)
一种线性振动电机(100),包括基座(1)、振动单元(2)、弹性件(3)以及线圈组件(4);所述振动单元(2)包括质量块(21)、沿振动方向贯穿其上的收容槽(22)、设置于所述收容槽(22)内并相对间隔设置的两个磁钢(23);所述弹性件(3)位于所述振动单元(2)沿其振动方向的一侧并与所述振动单元(2)连接;所述线圈组件(4)沿振动方向的正投影位于两个所述磁钢(23)之间且与两个所述磁钢(23)间隔设置;所述线圈组件(4)包括固定于所述基座(1)的铁芯(41)和绕设于所述铁芯(41)的线圈(42);两个所述磁钢(23)均沿所述振动方向充磁,且两个所述磁钢(23)的磁极反向设置;所述线圈组件(4)的充磁方向垂直于所述振动方向且与两个所述磁钢(23)的连线平行。与相关技术相比,上述线性振动电机(100)振动性能更好且可靠性高。
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