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US 11,088,591 B2Granted
Motor and actuator
AssigneeMINEBEA MITSUMI Inc.
InventorsAkiko Ikuta, Masaki Ogushi
Life of this patent
Estimating the term…
Abstract
A motor comprising a frame and one or a plurality of magnets disposed inside the frame, wherein a gap extending in a circumferential direction is provided between an inner peripheral surface of the frame and an outer peripheral surface of the magnet, and the magnet and the frame arranged at both sides of the gap are coupled together in a rotational shaft direction by means of an adhesive.
Claims18
An actuator comprising:
- a motor;
- and
- a housing including an accommodating part for the motor, the housing being formed with two members, wherein
- the motor includes:
- a frame including a plurality of corner parts and a surface part arranged between two neighboring corner parts of the frame;
- and
- one or a plurality of magnets disposed inside the frame, wherein,
- the magnet and the frame are coupled with an adhesive in a rotational shaft direction,
- magnetic pole elements of the one or the plurality of magnets are disposed at the plurality of corner parts of the frame,
- regions of the frame facing in a radial direction of the motor vibrate in reverse directions relative to each other during operation of the motor,
- a node of the vibration of the frame is arranged at the corner part of the frame,
- a belly of the vibration of the frame is arranged at the surface part of the frame,
- regions of the frame adjacent to each other vibrate in reverse directions relative to each other during operation of the motor,
- a reinforcing member is provided at the frame and extends in a circumferential direction along the surface part of the frame,
- the reinforcing member extends in the radial direction between the frame and the accommodating part,
- the reinforcing member is formed with a member different from a member of the frame,
- the accommodating part includes a plurality of corner parts and a surface part arranged between two neighboring corner parts of the accommodating part,
- a rib is provided at the surface part of the accommodating part, and
- the rib extends in a circumferential direction with respect to the motor disposed in the accommodating part.
16 more elements
An actuator comprising:
- a motor;
- and
- a housing including an accommodating part for the motor, the housing being formed with two members, wherein
- the motor includes:
- a frame including a plurality of corner parts and a surface part provided between two neighboring corner parts of the frame;
- and
- one or a plurality of magnets disposed inside the frame, wherein,
- the magnet and the frame are coupled with an adhesive in a rotational shaft direction,
- magnetic pole elements of the one or the plurality of magnets are disposed at the plurality of corner parts of the frame,
- a reinforcing member is provided at the frame and extends in a circumferential direction along the surface part of the frame,
- the reinforcing member extends in the radial direction between the frame and the accommodating part,
- the reinforcing member is formed with a member different from a member of the frame,
- the accommodating part includes a plurality of corner parts and a surface part provided between two neighboring corner parts of the accommodating part,
- a rib is provided at the surface part of the accommodating part, and
- the rib extends in a circumferential direction with respect to the motor disposed in the accommodating part.
12 more elements
An actuator comprising:
- a motor;
- and
- a housing including an accommodating part for the motor, the housing being formed with two members, wherein
- the motor includes:
- a frame including a plurality of corner parts and a surface part provided between two neighboring corner parts of the frame;
- and
- one or a plurality of magnets disposed inside the frame, wherein:
- magnetic pole elements of the one or the plurality of magnets are disposed at the plurality of corner parts of the frame,
- a reinforcing member is provided at the frame and extends in a circumferential direction along the surface part of the frame,
- the reinforcing member extends in the radial direction between the frame and the accommodating part,
- the reinforcing member is formed with a member different from a member of the frame,
- the accommodating part includes a plurality of corner parts and a surface part provided between two neighboring corner parts of the accommodating part,
- a rib is provided at the surface part of the accommodating part, and
- the rib extends in a circumferential direction with respect to the motor disposed in the accommodating part.
11 more elements
Dependencies are inferred from the claim text.