Motor

Patent metadata

Field	Value
Publication number	US-2019372424-A1
Application number	US-201916541782-A
Country	US
Kind code	A1
Filing date	Aug 15, 2019
Priority date	Nov 11, 2014
Publication date	Dec 5, 2019
Grant date	—

Abstract

Provided is a motor which includes a housing; a stator disposed in the housing, a rotor disposed in the stator, and a busbar disposed on one side of the stator, wherein the stator includes, a stator core, a coil wound around the stator core, and an insulator disposed between the stator core and the coil, the insulator includes, an outer circumferential part that faces the housing, an inner circumferential part that faces the rotor, and an extension part that protrudes from the inner circumferential part toward the busbar, the busbar includes a guide that protrudes from an inner circumferential surface thereof, and the extension part is in contact with the inner circumferential surface of the busbar and a lateral surface of the guide.

First claim

1 . A motor comprising:
a housing; a stator disposed in the housing; a rotor disposed in the stator; and a busbar disposed on one side of the stator, wherein the stator includes:
a stator core;
a coil wound around the stator core; and
an insulator disposed between the stator core and the coil,
the insulator includes:
an outer circumferential part that faces the housing;
an inner circumferential part that faces the rotor; and
an extension part that protrudes from the inner circumferential part toward the busbar,
the busbar includes a guide that protrudes from an inner circumferential surface thereof, and the extension part is in contact with the inner circumferential surface of the busbar and a lateral surface of the guide.

2 . The motor of claim 1 , wherein:
the extension part and the guide are provided as a plurality of extension parts and a plurality of guides; and the extension parts and the guides are alternately disposed along a circumference of the busbar.

3 . The motor of claim 1 , wherein a length of the guide in an axial direction is greater than a length a region of the extension part that is in contact with the inner circumferential surface of the busbar in an axial direction.

4 . The motor of claim 1 , wherein:
the busbar includes a short protrusion that protrudes from the inner circumferential surface thereof to connect a plurality of guides; and the short protrusion is in contact with an upper surface of the extension part.

5 . The motor of claim 1 , wherein a hook protrudes inward from an end of the extension part in a radial direction.

6 . The motor of claim 5 , wherein the hook includes a latching surface that is caught by an upper surface of the busbar.

7 . The motor of claim 1 , wherein the extension part has a thickness that decreases in a direction toward an upper side thereof.

8 . The motor of claim 7 , wherein the inner circumferential surface of the busbar that is in contact with the extension part is inclined with respect to an axial direction.

9 . The motor of claim 1 , wherein vibration of the busbar is inhibited due to the extension part in contact with the busbar.

10 . The motor of claim 1 , wherein a position of the busbar is determined due to the extension part in contact with the lateral surface of the guide.

Assignees

• Lg Innotek Co Ltd

Inventors

• Ryu Woong Seon

Classifications

• H02K3/345

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

• H02K3/50

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

• H02K3/522 Primary

  for generally annular cores with salient poles · CPC title

• H02K5/24 Primary

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

• H02K1/16

  Stator cores with slots for windings · CPC title