# US 2021/0344251 A1 · Motor

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- Number: US 2021/0344251 A1
- Document ID: US20210344251A1
- Status: Published application
- Kind: A1
- Application number: 17/286,559
- Filed: 2019-10-22
- Published: 2021-11-04
- Earliest claimed: 2018-10-22
- Assignees: LG Innotek Co., Ltd.
- Applicants: LG Innotek Co., Ltd.
- Inventors: Young Hwan JUNG
- Web page: https://patentgrep.com/patent/US20210344251A1

## CPC

- H02K 3/522: {for generally annular cores with salient poles}
- H02K 5/225: {Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132)}
- H02K 3/505: {for large machine windings, e.g. bar windings (H02K3/51 takes precedence)}
- B62D 5/0406: {including housing for electronic control unit}
- H02K 2203/09: Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

The present invention may provide a motor including a housing, a stator disposed in the housing, a rotor disposed in the stator, a shaft coupled to the rotor, a busbar disposed above the stator, and a terminal portion connected to the busbar, wherein the busbar includes a busbar body and a plurality of first terminals disposed on the busbar body, the terminal portion includes a terminal body and second terminals disposed on the terminal body, first end portions of the first terminals are in contact with second end portions of the second terminals, the busbar body includes a first coupling part, the terminal body includes a second coupling part, the first coupling part is disposed between the first end portions, and the second coupling part is disposed between the second end portions.

## Claims

### Claim 1

A motor comprising:
a housing;
a stator disposed in the housing;
a rotor disposed in the stator;
a shaft coupled to the rotor;
a busbar disposed above the stator; and
a terminal portion connected to the busbar,
wherein the busbar includes a busbar body and a plurality of first terminals disposed on the busbar body,
the terminal portion includes a terminal body and second terminals disposed on the terminal body,
first end portions of the first terminals are in contact with second end portions of the second terminals,
the busbar body includes a first coupling part,
the terminal body includes a second coupling part,
the first coupling part is disposed between the first end portions, and
the second coupling part is disposed between the second end portions.

### Claim 2 (depends on 1)

The motor of claim 1, wherein the first coupling part and the second coupling part are disposed to overlap in a circumferential direction based on the shaft.

### Claim 3 (depends on 2)

The motor of claim 2, wherein:
the busbar includes a plurality of guides which extend upward from an upper surface of the busbar body and surround one portions of the first terminals;
the plurality of guides are disposed to be spaced apart from each other in the circumferential direction; and
the first coupling part includes a hole formed by the plurality of guides disposed to be spaced apart from each other.

### Claim 4 (depends on 3)

The motor of claim 3, wherein:
the terminal portion includes a protrusion extending downward from a lower surface of the terminal body; and
the second coupling part includes the protrusion.

### Claim 5 (depends on 1)

The motor of claim 1, wherein:
the busbar body is fitted to the terminal body in a shaft direction.

### Claim 6

A motor comprising:
a stator;
a rotor disposed in the stator;
a shaft coupled to the rotor;
a busbar disposed above the stator; and
a terminal portion connected to the busbar,
wherein the terminal portion includes a terminal body and third terminals disposed on the terminal body,
the busbar includes a busbar body and a plurality of fourth terminals disposed on the busbar body,
at least one of the plurality of third terminals includes terminal ends and insulating members surrounding one portions of the terminal ends,
the terminal ends pass through the terminal body, and
the insulating members are coupled to the terminal body.

### Claim 7 (depends on 6)

The motor of claim 6, wherein a height of an end portion of the at least one third terminal is different from a height of an end portion of another adjacent third terminal.

### Claim 8 (depends on 6)

The motor of claim 6, wherein:
the plurality of third terminals include fusing portions fused to the plurality of fourth terminals; and
heights of the fusing portions which are adjacent to each other are different.

### Claim 9 (depends on 6)

The motor of claim 6, wherein:
the number of the plurality of third terminals is three;
lengths of the third terminals disposed at both sides thereof are the same in a shaft direction; and
a length of the third terminal disposed at a center thereof is longer than the lengths of the third terminals disposed at the both sides thereof in the shaft direction.

### Claim 10 (depends on 6)

The motor of claim 6, wherein the terminal ends include:
first regions in contact with the insulating members;
second regions which extend from the first regions and of which end portions are fused to the fourth terminals; and
lengths of the second regions which are adjacent to each other are different in the shaft direction.
