| CPC F16H 19/08 (2013.01) [F16H 57/021 (2013.01); F16H 57/031 (2013.01); F16H 63/3466 (2013.01); H02K 5/10 (2013.01); H02K 7/1166 (2013.01); H02K 11/38 (2016.01); F16H 2057/02026 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02082 (2013.01); H02K 2211/03 (2013.01)] | 8 Claims |
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1. An electric actuator, comprising:
a motor;
a speed reduction mechanism configured to decelerate a rotation of the motor and transmit it to an output shaft;
a board on which an electronic component related to a drive control of the motor is mounted;
a housing having a case and a cover and being configured to house the motor, the speed reduction mechanism, and the board therein; and
a board cover that is separate from the housing, engages with the case inside the housing, and separates the motor and the speed reduction mechanism from the board; wherein:
the board cover has a bottom portion and a peripheral wall,
the case has a cover insertion groove into which a distal end side of the peripheral wall is inserted, and which is composed of a bottom surface in contact with the distal end surface of the peripheral wall, an inner wall formed on an inner circumferential side of the bottom surface, and an outer wall formed on an outer circumferential side of the bottom surface so as to face the inner wall, and
the board cover has a collar portion whose distal end side extends toward an outer periphery on a same plane as the distal end surface,
the cover insertion groove is formed with an enlarged portion corresponding to the collar portion, and
the case and the board cover are fixed at a contact point between the collar portion and the enlarged portion.
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