CENTRALIZED POWER DISTRIBUTION MEMBER FOR MOTOR

• US 20150381002A1
• Filed: 01/31/2014
• Published: 12/31/2015
• Est. Priority Date: 02/22/2013
• Status: Active Grant

• Current Assignee: Mitsubishi Heavy Industries, Ltd., Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Original Assignee: Mitsubishi Heavy Industries, Ltd., Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Inventors: Hashimoto, Tsutomu, Fukahori, Satoshi
• Granted Patent: US 9,819,240 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02K 15/0056 Manufacturing winding connections
• CPC Class Codes: H02K 2203/09 Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
• CPC Class Codes: H02K 3/28 Layout of windings or of connections between windings windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32
• CPC Class Codes: H02K 3/522 for generally annular cores with salient poles

Abstract

A centralized power distribution member A configured to feed power to windings of a stator S of a multi-phase motor includes a plurality of annular busbars 10 each including a power feeding terminal 20 and connection terminals 15 to be connected to one ends of the windings of each phase on one side edge, an annular holder 30 made of synthetic resin and configured to accommodate the busbars 10 laminated in a radial direction in a mutually insulated manner, neutral point busbars 50 configured to connect the other ends of the windings of each phase, and auxiliary holders 60, 60X made of synthetic resin and configured to accommodate the neutral point busbars 50. The auxiliary holders 60, 60X are arranged on one end surface side of the annular holder 30 where the power feeding terminals 20 and the connection terminals 15 are arranged.

Claims

1. A centralized power distribution member for motor configured to feed power to windings of a stator of a multi-phase motor, comprising:

a plurality of annular busbars each including a power feeding terminal and a connection terminal to be connected to one end of the winding of each phase on one side edge;

an annular holder made of synthetic resin and configured to accommodate the busbars laminated in a radial direction in a mutually insulated manner;

a neutral point busbar configured to connect the other end of the winding of each phase; and

an auxiliary holder made of synthetic resin and configured to accommodate the neutral point busbar,

the auxiliary holder being arranged in an area which is on a side of an end surface of the annular holder where the power feeding terminals and the connection terminals are arranged and is retracted inwardly of the outer periphery of the end surface.

2. The centralized power distribution member for motor of claim 1, wherein the auxiliary holder is used also as a cover mounted on the annular holder to prevent the detachment of the busbars accommodated in the annular holder.

3. The centralized power distribution member for motor of claim 2, wherein the connection terminals provided on the respective busbars and connection terminals provided on the neutral point busbar and to be connected to the other ends of the windings are arranged on the same circumference.

4. The centralized power distribution member for motor of claim 1, wherein the connection terminals provided on the respective busbars and connection terminals provided on the neutral point busbar and to be connected to the other ends of the windings are arranged on the same circumference.