Title:
LINEAR VIBRATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/000680
Kind Code:
A1
Abstract:
The present invention provides a linear vibration motor, comprising a vibration assembly comprising a mass block having an accommodating hole, a magnetic steel assembly fixed to the mass block, and a guide member; and a stator assembly comprising an iron core and a coil. The iron core comprises an iron core body wound around the coil and an extension structure; the extension structure comprises first extension portions extending from a first end portion of the iron core body, first claw poles bending and extending from the first extension portions to a second end portion, second extension portions extending from the second end portion of the iron core body, and second claw poles bending and extending from the second extension portions to the first end portion; the first claw poles and the second claw poles are arranged at intervals in the vibration direction and are all arranged directly opposite to the magnetic steel assembly. By arranging the first claw poles and the second claw poles in a staggered manner in the vibration direction, on the premise of ensuring a sufficient driving force, the height of the linear vibration motor is reduced, so that the linear vibration motor can be better applied in a lighter and thinner mobile terminal.
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Inventors:
MAO LUBIN (CN)
LI ZIANG (CN)
LI ZIANG (CN)
Application Number:
PCT/CN2022/106638
Publication Date:
January 04, 2024
Filing Date:
July 20, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H02K33/02
Foreign References:
| CN114421730A | 2022-04-29 | |||
| CN105790541A | 2016-07-20 | |||
| JP2005229778A | 2005-08-25 | |||
| CN103762815A | 2014-04-30 |
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