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1. CN109617355 - Linear vibration motor

Office
China
Application Number 201811610760.9
Application Date 27.12.2018
Publication Number 109617355
Publication Date 12.04.2019
Grant Number 109617355
Grant Date 23.02.2021
Publication Kind B
IPC
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 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
CPC
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
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 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 AAC TECHNOLOGIES (NANJING) INC.
瑞声科技(南京)有限公司
Inventors TANG YUN
汤赟
MAO LUBIN
毛路斌
Agents 深圳君信诚知识产权代理事务所(普通合伙) 44636
Title
(EN) Linear vibration motor
(ZH) 线性振动电机
Abstract
(EN) The invention provides a linear vibration motor. The linear vibration motor comprises a base, a vibration unit, a vibration elastic piece and a coil assembly, wherein the vibration unit comprises a mass block, a containing groove which penetrates through the vibration unit along the vibration direction, and two magnetic steels which are arranged in the containing groove and are oppositely arrangedat intervals; the elastic piece is located on one side of the vibration unit in the vibration direction of the vibration unit and is connected with the vibration unit; the orthographic projection ofthe coil assembly in the vibration direction is located between the two magnetic steels and is arranged at intervals with the two magnetic steels; the coil assembly comprises an iron core fixed to thebase and a coil wound around the iron core; the two magnetic steels are magnetized in the vibration direction, and the magnetic poles of the two magnetic steels are oppositely arranged; and the magnetizing direction of the coil assembly is perpendicular to the vibration direction and is parallel to the connecting line of the two magnetic steels. Compared with the related art, the linear vibrationmotor is better in vibration performance and high in reliability.
(ZH) 本发明提供一种线性振动电机,包括基座、振动单元、将所述振动弹性件以及线圈组件;所述振动单元包括质量块、沿振动方向贯穿其上的收容槽、设置于所述收容槽内并相对间隔设置的两个磁钢;所述弹性件位于所述振动单元沿其振动方向的一侧并与所述振动单元连接;所述线圈组件沿振动方向的正投影位于两个所述磁钢之间且与两个所述磁钢间隔设置;所述线圈组件包括固定于所述基座的铁芯和绕设于所述铁芯的线圈;两个所述磁钢均沿所述振动方向充磁,且两个所述磁钢的磁极反向设置;所述线圈组件的充磁方向垂直于所述振动方向且与两个所述磁钢的连线平行。与相关技术相比,本发明线性振动电机振动性能更好且可靠性高。
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