Motor connecting member and motor device

Patent metadata

Field	Value
Publication number	US-9325213-B2
Application number	US-201414250873-A
Country	US
Kind code	B2
Filing date	Apr 11, 2014
Priority date	Apr 15, 2013
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

A motor connecting member, which connects a motor winding and a terminal block, includes a terminal to be connected to the terminal block, a winding connecting portion to be connected to the motor winding, and an extended portion extending between the terminal and the winding connecting portion. The extended portion is made by plastically deforming a single wire having a circular cross section, and is curved in a circular arc shape in at least one portion between the terminal and the winding connecting portion, and the at least one curved portion comprises a narrower conductor width in a radial direction than a diameter of the single wire before the plastic deformation.

First claim

What is claimed is:

1. A motor connecting member, which connects a motor winding wound around an annular stator core and a terminal block, comprising:
a terminal to be connected to the terminal block;
a winding connecting portion to be connected to the motor winding; and
an extended portion extending between the terminal and the winding connecting portion,
wherein the extended portion is made by plastically deforming a single wire having a circular cross section, and is curved in a circular arc shape in at least one portion between the terminal and the winding connecting portion,
wherein the extended portion integrally includes a curved portion curved in an arc shape, a first straight portion extending linearly on a terminal-side of the curved portion, and a second straight portion extending linearly on a winding connecting portion-side of the curved portion, the second straight portion and the first straight portion being arranged transversely with respect to a radial direction of the stator core,
wherein the curved portion comprises a narrower conductor width in a radial direction than a diameter of the single wire before the plastic deformation,
wherein the curved portion comprises a narrower conductor width when viewed in an axial direction of the stator core than a diameter of the first straight portion and a diameter of the second straight portion.

2. The motor connecting member according to claim 1 , wherein the at least one curved portion of the extended portion comprises a wider conductor width in a direction perpendicular to the radial direction than the diameter of the single wire before the plastic deformation.

3. The motor connecting member according to claim 1 , wherein the winding connecting portion is connected by welding to the motor winding.

4. The motor connecting member according to claim 1 , wherein the extended portion is consisted essentially of an electrical conductor.

5. The motor connecting member according to claim 1 , wherein the extended portion comprises an electrical conductor and an insulating member comprising a resin for coating the electrical conductor.

6. A motor device, comprising: the motor connecting member according to claim 1 , and a motor in which the motor winding is connected to the winding connecting portion.

Assignees

• Hitachi Metals Ltd

Inventors

• Egami Kenichi

Classifications

• H02K5/225

  Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title

• H02K3/50 Primary

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