# US 10,122,234 B2 · Stator for rotary electric machine

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,122,234 B2
- Document ID: US10122234B2
- Status: Granted
- Kind: B2
- Application number: 14/755,611
- Filed: 2015-06-30
- Published: 2016-01-07
- Granted: 2018-11-06
- Earliest claimed: 2014-07-01
- Assignees: Toyota Jidosha Kabushiki Kaisha; Denso Corporation
- Applicants: Toyota Jidosha Kabushiki Kaisha; Denso Corporation
- Inventors: Keiichi Kaneshige; Masashi Matsumoto; Kuniyoshi Shishido; Atsushi Watanabe; Kazuhiro Goto; Akihito Koike; Tetsuya Maruyama
- Web page: https://patentgrep.com/patent/US10122234B2

## CPC

- H02K 3/50: Fastening of winding heads, equalising connectors, or connections thereto
- H02K 3/12: arranged in slots
- H02K 3/28: Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32)
- H02K 3/48: in slots
- H02K 11/25: Devices for sensing temperature, or actuated thereby
- H02K 15/35: Form-wound windings
- H02K 2203/06: Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})

## Abstract

A stator includes a stator core, a plurality of phase windings, a neutral line and a fixing portion. The plurality of phase windings is wounded a plurality of times by a predetermined winding method crossing between a plurality of slots. One lead end of each phase winding is a neutral point connecting portion, and the one lead end is pulled out from an axially end portion of the stator core. The neutral line connects the neutral point connecting portions of the phase windings of different phases together. The neutral line is separate from the phase windings. The fixing portion fixes a first phase winding that is connected to the neutral line. A second phase winding is adjacent to the first phase winding together.

## Claims

### Claim 1

A stator for a rotary electric machine, the stator comprising:
a stator core including a yoke portion on an outer peripheral side of the stator core, the stator core having a plurality of slots on an inner peripheral side of the stator core, the slots being arranged in a circumferential direction;
a plurality of phase windings wounded a plurality of times by a predetermined winding method crossing between the plurality of slots, one lead end of each phase winding being a neutral point connecting portion, and the one lead end being pulled out from an axially end portion of the stator core;
a neutral line that connects the neutral point connecting portions of the phase windings of different phases together, the neutral line being separate from the phase windings; and
a fixing portion that directly fixes a first portion of a first phase winding that is connected to the neutral line, and a second portion of the first phase winding that is adjacent to the first portion of the first phase winding together without an intervening structure.

### Claim 2 (depends on 1)

The stator according to claim 1, wherein
the fixing portion is a high viscosity adhesive which can be provided between the first portion and the second portion without running down.

### Claim 3 (depends on 1)

The stator according to claim 1, wherein
the fixing portion is a tablet adhesive that is in a solid state at room temperature, and fluidizes when heated.

### Claim 4 (depends on 1)

The stator according to claim 1, wherein
the fixing portion includes a low viscosity adhesive and a tube;
the tube is arranged between the first portion and the second portion, and the tube is impregnated with the low viscosity adhesive.

### Claim 5 (depends on 1)

The stator according to claim 1, wherein
the fixing portion is a sheet member that is inserted between the first portion and the second portion; and
the sheet member is in a solid state at room temperature, and melts when heated, and cures by being heated further.

### Claim 6 (depends on 1)

The stator according to claim 1, wherein the fixing portion is connected only to the first portion and the second portion.

### Claim 7 (depends on 1)

The stator according to claim 1, wherein
the first portion of the first phase winding is in a first plane parallel to a second plane in which the second portion of the first phase winding is provided, and
the fixing portion is provided between the first plane and the second plane.

### Claim 8 (depends on 1)

The stator according to claim 1, wherein the neutral line sits radially above the first phase winding.