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US 11,451,116 B2Granted
Motor
AssigneeLG Innotek Co., Ltd.
InventorsJae Young Kim, Kyung Sang Park, Young Hwan Jung
Life of this patent
Estimating the term…
Abstract
An embodiment relates to a motor including a shaft, a rotor coupled to the shaft, a stator disposed outside the rotor, a sensing magnet disposed on the shaft, and a coupling member disposed to cover the sensing magnet, wherein the coupling member is inserted into a first groove concavely formed in an end portion of the shaft. Accordingly, combinability and assemblability of the sensing magnet and the shaft can be secured using the coupling member formed to have an elastic structure in the motor.
Claims16
A motor comprising:
- a shaft including an end in which a first groove is concavely formed in a shaft direction;
- a rotor and a sensing magnet which are coupled to the shaft;
- a coupling member which couples the shaft and the sensing magnet;
- and
- an elastic member disposed under the sensing magnet,
- wherein the coupling member includes a coupling portion, which has an elastic force and of which at least a part is inserted into and coupled to the first groove, and an accommodation portion fixing the sensing magnet,
- wherein the shaft includes a third groove concavely formed in the shaft direction of a lower surface of the first groove, and one lower region of the elastic member is disposed in the third groove.
4 more elements
A motor comprising:
- a shaft including an end in which a first groove is formed;
- a rotor and a sensing magnet which are coupled to the shaft;
- a coupling member which couples the shaft and the sensing magnet;
- and
- an elastic member disposed under the sensing magnet,
- wherein the coupling member includes a coupling portion, which has an elastic force and of which at least a part is inserted into and coupled to the first groove, and an accommodation portion fixing the sensing magnet,
- wherein the shaft includes a third groove concavely formed in a lower surface and one lower region of the elastic member is disposed in the third groove,
- wherein a plurality of coupling portions are formed as the coupling portion of the coupling member on a lower end of the accommodation portion;
- and
- each of the plurality of coupling portions includes a first region formed to protrude downward from an end portion of the accommodation portion and a second region obliquely bent upward from a lower portion of the first region.
7 more elements
A motor comprising:
- a shaft including an end in which a first groove is formed;
- a rotor and a sensing magnet which are coupled to the shaft;
- a coupling member which couples the shaft and the sensing magnet;
- and
- an elastic member disposed under the sensing magnet,
- wherein the coupling member includes a coupling portion, which has an elastic force and of which at least a part is inserted into and coupled to the first groove, and an accommodation portion fixing the sensing magnet,
- wherein the shaft includes a third groove concavely formed in a lower surface and one lower region of the elastic member is disposed in the third groove,
- wherein:
- the coupling portion is press-fitted into and coupled to the first groove;
- and
- the accommodation portion is disposed on a side surface of the coupling portion,
- the coupling member includes a body having a cylindrical shape;
- the accommodation portion includes an upper surface portion extending from an upper end of the body in a radius direction and a side surface portion extending downward from an edge of the upper surface portion;
- the sensing magnet is formed to have a donut shape and includes a groove;
- and
- a part of the body is disposed in the groove of the sensing magnet.
13 more elements
Dependencies are inferred from the claim text.