Motor

Patent metadata

Field	Value
Publication number	US-2017310193-A1
Application number	US-201515526098-A
Country	US
Kind code	A1
Filing date	Nov 10, 2015
Priority date	Nov 11, 2014
Publication date	Oct 26, 2017
Grant date	—

Abstract

Provided is a motor which includes a stator including a stator core, a coil wound around the stator core, and an insulator mounted on the stator core and configured to insulate the coil and the stator core, a busbar disposed on the stator and conductively connected to the coil, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the insulator includes a vibration prevention unit which extends from an upper side of an inner circumferential part and is in contact with an inner circumferential surface of the busbar. Therefore, the motor prevents a coating of a coil from being worn or cut by preventing the busbar from moving without an additional process or component.

First claim

1 . A motor comprising:
A stator including a stator core, a coil wound around the stator core, and an insulator mounted on the stator core and configured to insulate the coil and the stator core; a busbar disposed on the stator and conductively connected to the coil; a rotor disposed inside the stator; and a shaft coupled to the rotor, wherein the insulator includes a vibration prevention unit which extends upward from an upper surface of an inner circumferential part thereof and is in contact with an inner circumferential surface of the busbar.

2 . The motor of claim 1 , wherein the inner circumferential part of the vibration prevention unit is in contact with the inner circumferential surface of the busbar.

3 . The motor of claim 2 , wherein the busbar includes a plurality of slots which are formed in the inner circumferential surface thereof in a circumferential direction and the vibration prevention unit is disposed in the slot.

4 . The motor of claim 3 , wherein the busbar includes a guide unit disposed between the adjacent slots and protruding inward from the inner circumferential surface thereof.

5 . The motor of claim 4 , wherein the vibration prevention unit is forcibly inserted into the slot.

6 . The motor of claim 1 , wherein the busbar includes a stepped portion protruding from an upper end of the inner circumferential surface thereof and a lower side of the stepped portion is in contact with an upper side of the vibration prevention unit.

7 . The motor of claim 6 , wherein the stepped portion has a stepped surface formed to be parallel to an upper surface of the vibration prevention unit.

8 . The motor of claim 1 , wherein the vibration prevention unit includes a hook formed on an upper end thereof.

9 . The motor of claim 8 , wherein the hook is formed to protrude inward.

10 . The motor of claim 9 , wherein the hook includes a blocking surface blocking an upper surface of the busbar.

11 . The motor of claim 10 , wherein the blocking surface is parallel to the upper surface of the busbar.

12 . The motor of claim 3 , wherein each of the slots has a contact surface which is in contact with the vibration prevention unit and formed to be inclined toward a center of the busbar.

Assignees

• Lg Innotek Co Ltd

Inventors

• Ryu Woong Seon

Classifications

• H02K1/12

  Stationary parts of the magnetic circuit · CPC title

• H02K5/24 Primary

  specially adapted for suppression or reduction of noise or vibrations · CPC title

• H02K3/345

  between conductor and core, e.g. slot insulation · CPC title

• H02K2203/09

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

• H02K3/50

  Fastening of winding heads, equalising connectors, or connections thereto · CPC title