Title:
LINEAR MOTOR
Document Type and Number:
WIPO Patent Application WO/2022/006887
Kind Code:
A1
Abstract:
The present invention provides a linear motor, comprising a housing having a containing space, and a stator, a vibrator and an elastic member that are contained in the containing space. The stator is fixed to the housing; the elastic member is connected between the housing and the vibrator; the vibrator is suspended in the containing space; one of the vibrator and the stator comprises a coil assembly; the other of the vibrator and the stator comprises a magnetic steel system which is opposite the coil assembly in a spaced manner; and the geometric center of the magnetic steel system does not overlap with the geometric center of the coil assembly. According to the coil assembly of the linear motor provided in the present invention, under the conditions where the absolute values of input currents are equal and the current directions are opposite, an absolute value of electromagnetic induction force F1 borne by the vibrator in a first vibration direction is not equal to an absolute value of electromagnetic induction force F2 borne by the vibrator in a second vibration direction, namely, the linear motor has vibration differences in the two vibration directions, such that the vibration sensitivity of the motor is enriched.
Inventors:
MAO LUBIN (CN)
CUI ZHIYONG (CN)
CUI ZHIYONG (CN)
Application Number:
PCT/CN2020/101432
Publication Date:
January 13, 2022
Filing Date:
July 10, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H02K33/02
Foreign References:
| CN208955872U | 2019-06-07 | |||
| CN204597757U | 2015-08-26 | |||
| JP3548474B2 | 2004-07-28 | |||
| US20150123498A1 | 2015-05-07 |
Attorney, Agent or Firm:
HENZHEN HUASHENG ZHIHUI INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
Download PDF: