Vehicle-use rotating electric machine

Patent metadata

Field	Value
Publication number	US-10374493-B2
Application number	US-201415502079-A
Country	US
Kind code	B2
Filing date	Oct 21, 2014
Priority date	Oct 21, 2014
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

A configuration of a rectifying device configuring a vehicle-use rotating electric machine is such that when a lead drawn out from a stator winding is inserted into a through hole of a rear bracket forming a casing, a periphery of the lead is enclosed, and the through hole sealed, by a tubular member extended from a main body portion of a terminal block, and the through hole not blocked by the tubular member is sealed by a stopper portion extended in the same way from a main body portion of the terminal block. Even when the number of leads drawn out is reduced, standardization of the rear bracket is carried out by the through hole (3a) of the rear bracket being sealed by the stopper portion.

First claim

The invention claimed is:

1. A vehicle-use rotating electric machine, comprising:
a rotor rotatably supported inside a casing;
a stator supported by the casing and disposed so as to enclose the rotor, and
a rectifying device, disposed on an outer side on one axial direction side of the casing, that rectifies alternating current power generated in the stator, wherein
the rectifying device has a terminal block necessary for electrical connection with a stator winding configuring the stator,
the terminal block comprises a tubular member extended from a main body portion of the terminal block and inserted in a first through hole formed in the casing and a stopper portion extended from the main body portion of the terminal block and inserted in a second through hole formed in the casing, thereby sealing the first and second through holes,
the tubular member covers a periphery of a lead of the stator winding inserted through the first through hole and guides an insertion of the lead, and
the stopper portion seals a region of the second through hole of the casing not blocked by the tubular member.

2. The vehicle-use rotating electric machine according to claim 1 , wherein the stopper portion of the terminal block is disposed distanced from the tubular member of the terminal block.

3. The vehicle-use rotating electric machine according to claim 1 , wherein the stopper portion of the terminal block is disposed on an end face of the casing on the rotor side of the second through hole, and a surface of the stopper portion is disposed along an inner face on the rotor side of the casing.

4. The vehicle-use rotating electric machine according to claim 1 , wherein the stopper portion of the terminal block has a flat plate portion having a face perpendicular to an axis of rotation of the vehicle-use rotating electric machine.

5. The vehicle-use rotating electric machine according to claim 4 , wherein the stopper portion of the terminal block has a coupling portion extending in an axial direction and connecting a main body portion of the terminal block and the flat plate portion.

6. A vehicle-use rotating electric machine, comprising:
a rotor rotatably supported inside a casing;
a stator supported by the casing and disposed so as to enclose the rotor; and
a rectifying device, disposed on an outer side on one axial direction side of the casing, that rectifies alternating current power generated in the stator, wherein
the rectifying device has a terminal block necessary for electrical connection with a stator winding configuring the stator,
the terminal block has a tubular member and stopper portion extended from a main body portion of the terminal block and inserted in a through hole formed in the casing, thereby sealing the through hole in cooperation, the tubular member occupying a first portion of the through hole and the stopper portion occupying a second portion of the through hole located adjacent to the first portion in a circumferential direction of the vehicle-use rotating electric machine,
the tubular member covers a periphery of a lead of the stator winding inserted through the through hole and guides an insertion of the lead, and
the stopper portion seals the second portion of the through hole of the casing not blocked by the tubular member.

7. The vehicle-use rotating electric machine according to claim 6 , wherein the stopper portion of the terminal block is disposed so as to form an integrated structure in contact with the tubular member of the terminal block.

8. The vehicle-use rotating electric machine according to claim 6 , wherein the stopper portion of the terminal block is disposed on an end face of the casing on the rotor side of the through hole, and a surface of the stopper portion is disposed along an inner face on the rotor side of the casing.

9. The vehicle-use rotating electric machine according to claim 6 , wherein the stopper portion of the terminal block has a flat plate portion having a face perpendicular to an axis of rotation of the vehicle-use rotating electric machine.

10. The vehicle-use rotating electric machine according to claim 9 , wherein the stopper portion of the terminal block has a coupling portion extending in an axial direction and connecting a main body portion of the terminal block and the flat plate portion.

Assignees

• Mitsubishi Electric Corp

Inventors

• Kobayashi Yuzuru
• Akiyoshi Masao
• Tanaka Kazunori

Classifications

• H02K5/225 Primary

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

• H02K11/05 Primary

  Rectifiers associated with casings, enclosures or brackets · CPC title

• H02K9/06

  with fans or impellers driven by the machine shaft · CPC title

• H02K5/10

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

• B60Y2400/60

  Electric Machines, e.g. motors or generators · CPC title