Title:
ELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JP2021078194
Kind Code:
A
Abstract:
To realize an electric actuator having excellent performance of cooling a brushless motor which is a power source.SOLUTION: An electric actuator 1A includes a brushless motor 40 including a stator 41 and a rotor 42, a flat housing 30 which houses the brushless motor 40 and in which the axial dimension is smaller than the radial dimension, a control substrate 50 which is housed together with the brushless motor 40 in the housing 30, and a deceleration mechanism 60 that is integrated with the housing 30 and that reduces the rotational speed of power outputted from the brushless motor 40 and outputs the reduced speed. The housing 30 includes a cover 10 and a bracket 20 that are opposed to each other in the axial direction with the brushless motor 40 disposed therebetween. A thermally conductive sheet 70 that has a first surface 71 in close contact with the stator 41 and a second surface 72 in close contact with the bracket 20 is disposed between the brushless motor 40 and the bracket 20.SELECTED DRAWING: Figure 2
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Inventors:
TOZUKA TAKESHI
SAITO TATSUYUKI
WATANABE TETSUYA
MASUDA YOHEI
SAITO TATSUYUKI
WATANABE TETSUYA
MASUDA YOHEI
Application Number:
JP2019201354A
Publication Date:
May 20, 2021
Filing Date:
November 06, 2019
Export Citation:
Assignee:
MITSUBA CORP
International Classes:
H02K9/22; H02K5/18; H02K7/116; H02K11/215; H02K11/30
Domestic Patent References:
| JP2019075974A | 2019-05-16 | |||
| JP2006282158A | 2006-10-19 | |||
| JP2017073860A | 2017-04-13 |
Attorney, Agent or Firm:
Tsutsui International Patent Office