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Patent Searching and Data


Title:
VIBRATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/000164
Kind Code:
A1
Abstract:
A vibration motor (100), which comprises a housing (10) having an accommodating space, a vibrator (40) accommodated in the accommodating space, and a coil (50) for driving the vibrator (40) to reciprocate. The vibration motor (100) further comprises guide rails (20) which are accommodated in the accommodating space and fixed to the housing (10). The vibrator (40) comprises rolling friction parts (43) which are disposed corresponding to the guide rails (20), and each rolling friction part (43) comprises a mass block (431) which is spaced apart from the guide rail (20) and a plurality of rolling pieces (433) which are slidably connected between the mass block (431) and the guide rail (20). According to the vibration motor (100), the friction force is effectively reduced and the performance is improved.

Inventors:
MA JIE (CN)
Application Number:
CN2019/094064
Publication Date:
January 07, 2021
Filing Date:
June 30, 2019
Export Citation:
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Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (CN)
International Classes:
H02K33/00; H02K33/16; H02K33/18
Foreign References:
CN204886625U2015-12-16
CN204886625U2015-12-16
CN206341112U2017-07-18
CN107026555A2017-08-08
CN203482066U2014-03-12
CN104617736A2015-05-13
US20030036364A12003-02-20
Attorney, Agent or Firm:
SHENZHEN ZHONGYUANLIHE PATENT AND TRADEMARK FIRM (GENERAL PARTNERSHIP) (CN)
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