Motor and clutch actuator including same

Patent metadata

Field	Value
Publication number	US-10644567-B2
Application number	US-201515540945-A
Country	US
Kind code	B2
Filing date	Aug 6, 2015
Priority date	Dec 29, 2014
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

The present invention provides a motor including: a housing; a control part coupled to the housing; a stator assembly coupled to an inside of the housing and connected to the control part; a rotor disposed inside the stator; a rotary shaft coupled to the rotor; and a sensor connecting part including a body mounted on the housing and having a sensor mounting part, and a terminal included in the body and connected to the sensor mounting part and the control part, wherein the sensor mounting part is disposed outside the housing, and thus provides advantageous effects in that a configuration and an operation of connecting sensors to a control module are simplified, efficiency of an assembly operation is increased, and reliability of sensing information is improved.

First claim

The invention claimed is:

1. A motor comprising:
a housing;
a control part coupled to the housing;
a stator assembly coupled to an inside of the housing and connected to the control part;
a rotor disposed inside the stator;
a rotary shaft coupled to the rotor; and
a sensor connecting part including a body mounted on the housing and having a sensor mounting part, and a terminal included in the body and connected to the sensor mounting part and the control part;
wherein the body includes a first body and a second body that is coupled to the first body at a first end of the second body, the second body extending away from the first body in a first direction towards the control part,
wherein the first body is a portion exposed in front of the housing and having the sensor mounting part,
wherein the second body is a portion located in the housing and is coupled to the control part,
wherein the terminal is disposed in both the first body and the second body, and
wherein the motor comprises a connecting fin that extends away from a second end of the second body in the first direction, the connecting fin being connected to the terminal and coupled to the control part, and the second end of the second body being opposite from the first end of the second body.

2. The motor of claim 1 , wherein the control part is disposed at a rear of the housing.

3. The motor of claim 1 , wherein the sensor mounting part includes a first mounting part and a second mounting part electrically connected to the terminal,
wherein the first mounting part is disposed to face a center of a shaft of the rotary shaft, and
wherein the second mounting part is disposed on a front end of the body so that it is electrically connected to the terminal.

4. The motor of claim 1 , wherein the housing includes a mounting slot, and
wherein the sensor connecting part is detachably coupled to the mounting slot.

5. The motor of claim 1 , wherein the first body and the second body are coupled to be stepped.

6. The motor of claim 1 , wherein the second body is disposed between the stator assembly and an inner surface of the housing, and wherein a thickness of the second body is less than that of the first body.

7. The motor of claim 1 , wherein a power terminal of the stator is directly connected to the control part.

8. The motor of claim 1 , comprising a first sensor magnet,
wherein the rotor is integrally molded with and is coupled to the first sensor magnet.

9. The motor of claim 1 , wherein:
a second sensor magnet is coupled to a rear end of the rotary shaft; and
the control part includes a hall sensor disposed to face the second sensor magnet.

10. The motor of claim 1 , wherein a power terminal, a neutral terminal connected to the power terminal and a coil, and a bearing are integrally molded to form the stator assembly.

11. The motor of claim 1 , wherein the sensor connecting part comprises a displacement sensor and a pressure sensor mounted thereon.

12. A motor comprising:
a housing;
a control part coupled to the housing;
a stator assembly coupled to an inside of the housing and connected to the control part;
a rotor disposed inside the stator;
a rotary shaft coupled to the rotor; and
a sensor connecting part including a body mounted on the housing and having a sensor mounting part, and a terminal included in the body and connected to the sensor mounting part and the control part;
wherein the body includes a first body and a second body,
wherein the first body is a portion exposed in front of the housing and having the sensor mounting part,
wherein the second body is a portion located in the housing and is coupled to the control part,
wherein the sensor mounting part comprises a first mounting part and a second mounting part electrically connected to the terminal,
wherein the first mounting part is disposed to face a center of a shaft of the rotary shaft,
wherein the second mounting part is disposed on a front end of the body so that it is electrically connected to the terminal, and
wherein the sensor connecting part comprises:
a displacement sensor mounted on the first mounting part; and
a pressure sensor mounted on the second mounting part.

13. The motor of claim 12 , wherein the second mounting part includes a coupling slot in which an inlet is formed to face forward.

Assignees

• Lg Innotek Co Ltd

Inventors

• Kim Chan Seok

Classifications

• H02K11/33

  Drive circuits, e.g. power electronics (H02K11/38 takes precedence) · CPC title

• H02K5/22

  Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes · CPC title

• F16D29/005 Primary

  with a fluid pressure piston driven by an electric motor · CPC title

• H02K17/32

  Structural association of asynchronous induction motors with auxiliary mechanical devices, e.g. with clutches or brakes · CPC title

• G01D11/245

  Housings for sensors · CPC title