Title:
SERVO MOTOR BRAKE STATE JUDGMENT DEVICE AND BRAKE STATE JUDGMENT UNIT
Document Type and Number:
WIPO Patent Application WO/2023/021575
Kind Code:
A1
Abstract:
A brake state judgment device for servo motors is obtained whereby the state of brakes can be determined by using an acceleration sensor fixed to the outside of a case. The servo motor brake state judgment device comprises a rotation force generation unit (2), a rotational axis (3), a brake (100), a case (111), an acceleration sensor (12), and a state judgment unit (102). The case (111) is provided so as to cover the rotation force generation unit (2) and the brake (100). The acceleration sensor (12) is disposed on the outside of the case (111) and is fixed so as to contact the case (111).
Inventors:
OKUMURA SHINJI (JP)
TAKANO NAOTO (JP)
TAKANO NAOTO (JP)
Application Number:
PCT/JP2021/030025
Publication Date:
February 23, 2023
Filing Date:
August 17, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F16D66/00; F16D55/28; H01F7/06
Foreign References:
| US20200132149A1 | 2020-04-30 | |||
| JPH0672673A | 1994-03-15 | |||
| JP2013112501A | 2013-06-10 | |||
| JP2020147424A | 2020-09-17 | |||
| US20170234920A1 | 2017-08-17 | |||
| JP2009185874A | 2009-08-20 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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