Motor

Patent metadata

Field	Value
Publication number	US-2023261538-A1
Application number	US-202318138977-A
Country	US
Kind code	A1
Filing date	Apr 25, 2023
Priority date	Jan 5, 2018
Publication date	Aug 17, 2023
Grant date	—

Abstract

The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed outside the rotor, and a bus bar disposed on the stator, wherein the bus bar includes a terminal connected to a coil of the stator, the terminal includes a first terminal and a second terminal which are separated from each other in a circuit manner, the first terminal includes a first neutral terminal and a plurality of first phase terminals, the second terminal includes a second neutral terminal and a plurality of second phase terminals, first curvature centers of the plurality of first phase terminals are disposed to be different, second curvature centers of the plurality of second phase terminals are disposed to be different, a position of a curvature center of the first neutral terminal is the same as a position of a curvature center of the second neutral terminal.

First claim

What is claimed is:

1 . A motor comprising:
a shaft; a rotor coupled to the shaft; a stator disposed outside the rotor; and a bus bar disposed on the stator, wherein the bus bar includes a terminal connected to a coil of the stator, the terminal includes a first terminal and a second terminal which are separated from each other in a circuit manner, the first terminal includes a plurality of first phase terminals, the second terminal includes a plurality of second phase terminals, wherein curvature radiuses of the plurality first phase terminals are the same but the positions of the curvature centers of the plurality first phase terminals are different and curvature radiuses of the plurality second phase terminals are the same but the positions of the curvature centers of the plurality second phase terminals are different, wherein curvature radiuses of the first phase terminal and curvature radiuses of the second phase terminal are the same, and the positions of the curvature centers of the first phase terminal and the curvature centers of the second phase terminal are different.

2 . The motor of claim 1 , wherein the first terminal includes a first neutral terminal and the second terminal includes a second neutral terminal,
wherein the positions of the curvature centers of the first neutral terminal and the curvature centers of the second neutral terminal are the same.

3 . The motor of claim 1 , wherein curvature radiuses of the first neutral terminal and curvature radiuses of the second neutral terminal are the same.

4 . The motor of claim 1 , wherein a plurality of first phase terminals have the same shape and a plurality of second phase terminals have the same shape.

5 . The motor of claim 1 , wherein a shape of first phase terminals and a shape of second phase terminals is the same.

6 . A motor comprising:
a shaft; a rotor coupled to the shaft; a stator disposed outside the rotor; and a bus bar disposed on the stator, wherein the bus bar includes a terminal connected to a coil of the stator, the terminal includes a first terminal and a second terminal which are separated from each other in a circuit manner, the first terminal includes a first neutral terminal and a plurality of first phase terminals, the second terminal includes a second neutral terminal and a plurality of second phase terminals, wherein each of the first phase terminals and the second phase terminals includes:
a body; and
protruding portions bent from the body in a radial direction with respect to the curvature center of the first neutral terminal,
wherein a plurality of first phase terminals and a plurality of second phase terminals have the same shape,
wherein a first neutral terminal and a second neutral terminal have the same shape,
wherein the protruding portions of the first phase terminals and the protruding portions of the second phase terminals are disposed to be same in the radial direction.

7 . The motor of claim 6 ,
wherein each of the first neutral terminal and the second neutral terminal includes: a body; and protruding portions bent from the body in a radial direction with respect to the curvature center of the first neutral terminal, wherein the protruding portions of the first neutral terminal and the protruding portions of the second neutral terminal are disposed to be same in the radial direction.

8 . The motor of claim 7 ,
wherein each of the first and second neutral terminals have a multilayer structure; and the body is positioned on a first layer portion of each of the first and second neutral terminals and the protruding portion is positioned on a second layer portion of each of the first and second neutral terminals.

9 . The motor of claim 6 ,
wherein the protruding portions include: a first end portion extending from the body in the radial direction; a second end portion protruding from the first end portion and electrically connected to the coil of the stator; and a third end portion branched off from the second end portion and electrically connected to a power cable.

10 . The motor of claim 9 ,
wherein a part of the body and the second end portion are be positioned on the first layer portion of each of the first and second phase terminals and another part of the body and the first end portion are be positioned on the second layer portion of each of the first and second phase terminals.

Assignees

• Lg Innotek Co Ltd

Inventors

• Ryu Woong Seon

Classifications

• H02K3/51 Primary

  applicable to rotors only · CPC title

• H02K1/146

  consisting of a generally annular yoke with salient poles · CPC title

• H02K1/165

  Shape, form or location of the slots · CPC title

• H02K2203/09

  Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations · CPC title

• H02K11/00

  Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection (casings, enclosures or supports H02K5/00) · CPC title