Title:
LINEAR ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2023/035478
Kind Code:
A1
Abstract:
Disclosed in the present invention is a linear actuator, relating to a driving device. The linear actuator comprises a motor assembly and at least one screw rod; the screw rod is circumferentially fixed, and is connected to a nut by means of external threads; the motor assembly drives the screw rod and the nut to rotate relative to each other, and the screw rod is driven by the motor assembly to move along the axial direction itself; and a piezoelectric element is provided on one side of the motor assembly, and the motor assembly directly or indirectly applies an acting force to the piezoelectric element when driving the screw rod to move. According to the present application, the structure is reasonable; and reading of a piezoelectric plate reflects whether the operation of the actuator is blocked and reflects whether the motor assembly is overloaded, such that a user can make an adjustment according to the situation.
Inventors:
LI YING (CN)
Application Number:
PCT/CN2021/139113
Publication Date:
March 16, 2023
Filing Date:
December 17, 2021
Export Citation:
Assignee:
DEWERTOKIN TECH GROUP CO LTD (CN)
International Classes:
F16H25/20; H02K7/06
Foreign References:
| CN102056514A | 2011-05-11 | |||
| US20050012430A1 | 2005-01-20 | |||
| CN202100671U | 2012-01-04 |
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. (CN)
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