Stator of electric motor, electric motor, air conditioner, and method of manufacturing stator of electric motor

Patent metadata

Field	Value
Publication number	US-10044239-B2
Application number	US-201414772138-A
Country	US
Kind code	B2
Filing date	Mar 19, 2014
Priority date	Mar 21, 2013
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

A lead wire wiring component includes a lead wire guide that guides power supply lead wires and sensor lead wires to a lead wire leading component. The lead wire leading component includes projection portions that can be assembled to the lead wire guide. The projection portions are detached from the lead wire guide for molding such that the lead wire leading component is detached from the lead wire wiring component during the molding.

First claim

The invention claimed is:

1. A stator of an electric motor, comprising:
a stator;
a lead wire wiring component that is assembled to one end of the stator in an axial direction and on which a lead wire is laid;
a lead wire leading component leading the lead wire; and
a molding resin portion integrally covering the stator, the lead wire wiring component, and the lead wire leading component, wherein
the lead wire wiring component includes a lead wire guide guiding the lead wire to the lead wire leading component,
the lead wire leading component is capable of being assembled to the lead wire guide, and
the lead wire leading component is separated from the lead wire wiring component in the molding resin portion.

2. The stator of an electric motor according to claim 1 , wherein the lead wire leading component has a structure capable of being assembled to the lead wire guide.

3. The stator of an electric motor according to claim 1 , wherein
the lead wire leading component includes a projection portion capable of being assembled to the lead wire guide, and
the projection portion is detached from the lead wire guide in the molding resin portion.

4. The stator of an electric motor according to claim 3 , wherein the projection portion extends inward in a radial direction of the stator from the lead wire leading component.

5. The stator of an electric motor according to claim 4 , wherein
the projection portion includes first and second projection portions that are arranged such that the first and second projection portions are separated from each other in the axial direction, and
the lead wire leading component is capable of being assembled to the lead wire wiring component by fitting the first and second projection portions into the lead wire guide.

6. The stator of an electric motor according to claim 3 , wherein the projection portion extends from the lead wire leading component toward another end of the stator in the axial direction.

7. The stator of an electric motor according to claim 6 , wherein the projection portion extends inward in the radial direction of the stator from the lead wire leading component and is then bent in the axial direction to extend toward the another end of the stator in the radial direction.

8. The stator of an electric motor according to claim 1 , wherein the lead wire leading component is assembled to the lead wire guide when the stator is assembled, and the lead wire leading component is detached from the lead wire guide before molding.

9. An electric motor comprising the stator of an electric motor according to claim 1 .

10. An air conditioner comprising the electric motor according to claim 9 .

11. The stator of an electric motor according to claim 1 , wherein
the lead wire wiring component includes an annular plate, and
the lead wire guide is provided at an outer circumference side of the annular plate.

12. A stator of an electric motor, comprising:
a stator;
a lead wire wiring component that is assembled to one end of the stator in an axial direction and on which a lead wire is laid;
a lead wire leading component leading the lead wire; and
a molding resin portion integrally covering the stator, the lead wire wiring component, and the lead wire leading component, wherein
the lead wire wiring component includes a lead wire guide guiding the lead wire to the lead wire leading component,
the lead wire leading component is capable of being assembled to the lead wire guide,
the lead wire leading component is detached from the lead wire guide in the molding resin portion,
the lead wire leading component includes a projection portion capable of being assembled to the lead wire guide, and
the projection portion is detached from the lead wire guide in the molding resin portion, and
wherein the projection portion includes a hook portion that is engaged with the lead wire guide.

13. A method of manufacturing a stator of an electric motor, the method comprising:
assembling a lead wire leading component to a lead wire guide of a lead wire wiring component;
laying a lead wire on the lead wire wiring component;
assembling the lead wire wiring component to a stator to manufacture a stator assembly;
detaching the lead wire leading component from the lead wire guide when the stator assembly is placed in a mold; and
integrally molding the stator assembly with molding resin.

Assignees

• Mitsubishi Electric Corp

Inventors

• Aso Hiroki
• Kawakubo Mamoru
• Yamamoto Mineo
• Ishii Hiroyuki
• Oya Junichiro
• Urabe Yuto

Classifications

• H02K5/08

  Insulating casings · CPC title

• H02K15/02

  of stator or rotor bodies · CPC title

• H02K15/12

  Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines · CPC title

• H02K2203/03

  Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations · CPC title

• H02K5/10

  with arrangements for protection from ingress, e.g. water or fingers · CPC title