ROTATING ELECTRICAL MACHINE

• US 20080174190A1
• Filed: 01/08/2008
• Published: 07/24/2008
• Est. Priority Date: 01/18/2007
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Kobayashi, Toshiyuki, Ishida, Takeshi, Ikeda, Koichi, KURATA, Fumito
• Application Number:
  US11/970,790
• Publication Number:
  US 20080174190A1
• Time in Patent Office: Days
• US Class Current: 310/54
• CPC Class Codes: B60L 1/02 to electric heating circuits
• CPC Class Codes: B60L 2220/14 Synchronous machines
• CPC Class Codes: B60L 2220/44 Wheel Hub motors, i.e. integrated in the wheel hub
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 3/0061 relating to electrical machines
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: H02K 1/18 Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• CPC Class Codes: H02K 5/203 specially adapted for liquids, e.g. cooling jackets
• CPC Class Codes: H02K 7/116 with gears
• CPC Class Codes: H02K 7/14 Structural association with mechanical loads, e.g. with hand-held machine tools or fans with fan or impeller for cooling the machine H02K9/06
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A rotating electrical machine that includes a rotor, a stator, and an encasing member that encases the rotor and the stator is also provided with a guide member that guides coolant which cools the rotating electrical machine into a gap between the stator and the encasing member.

Claims

1. A rotating electrical machine provided with a rotor, a stator, and an encasing member that encases the rotor and the stator, comprising:

a guide member that guides coolant which cools the rotating electrical machine into a gap between the stator and the encasing member.

2. The rotating electrical machine according to claim 1, wherein the guide member is formed of an elastic body.

3. The rotating electrical machine according to claim 2, wherein the guide member is formed of an elastic porous body.

4. The rotating electrical machine according to claim 2, wherein the guide member is formed of a flocked member.

5. The rotating electrical machine according to claim 4, wherein the flocked member is formed of a flocked sheet of synthetic resin on which short hairs of synthetic resin are provided.

6. The rotating electrical machine according to claim 2, wherein the guide member is formed of a synthetic resin body having a groove portion.

7. The rotating electrical machine according to claim 6, wherein the synthetic resin body having the groove portion is provided with a groove portion that extends in an axial direction of the rotating electrical machine, a plurality of wall portions which extend in a circumferential direction, and a plurality of groove portions formed between the wall portions.

8. The rotating electrical machine according to claim 6, wherein an outer diameter of the synthetic resin body having the groove portion is larger than an inner diameter of the encasing member.

9. The rotating electrical machine according to claim 7, wherein an outer diameter of the synthetic resin body having the groove portion is larger than an inner diameter of the encasing member.

10. The rotating electrical machine according to claim 3, further comprising:

a storing portion in which the coolant is stored,

wherein a portion of the elastic porous body extends into the storing portion.

11. An in-wheel motor assembly comprising:

the rotating electrical machine according to claim 2,

wherein the rotating electrical machine is provided for each wheel of a vehicle and is arranged in a position on an inner peripheral side of a wheel assembly.