Electric rotating machine having detachable moving stator drive unit

• US 7,990,008 B2
• Filed: 03/08/2007
• Issued: 08/02/2011
• Est. Priority Date: 03/09/2006
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Yoshida, Shinichirou, Hashimoto, Akira, Morita, Masao, Naka, Kouki
• Primary Examiner(s): Leung; Quyen
• Assistant Examiner(s): Johnson; Eric
• Application Number:
  US11/683,929
• Publication Number:
  US 20070210666A1
• Time in Patent Office: 1,608 Days
• Field of Search: 310/190, 310/191, 310/112, 310/199, 310/254, 310/195, 310/180, 310/184, 310/198, 310/116, 310405-406, 310/67.R
• US Class Current: 310/112
• CPC Class Codes: H02K 3/50 Fastening of winding heads, equalising connectors, or connections thereto
• CPC Class Codes: H02K 5/22 Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
• CPC Class Codes: H02K 7/12 with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
• CPC Class Codes: H02K 7/20 Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters

Abstract

The electric rotating machine includes a fixed stator fixed to the inner circumferential side of a housing, a moving stator rotatably supported on the inner circumferential side of the housing, a rotor disposed concentrically on the inner circumferential side of the fixed stator and the moving stator, and a moving stator drive formed of a gear and a motor for rotating the moving stator by a predetermined angle. The moving stator drive is detachable with respect to the housing. Coil leader lines are stored in an internal part of the housing so that the moving stator is capable of rotating by a predetermined angle.

Claims

1. An electric rotating machine comprising:

a housing having an opening;

a support member provided in the opening of the housing;

a fixed stator fixed to the inner circumferential side of said housing;

a moving stator supported rotatably on the inner circumferential side of said housing;

a rotor disposed concentrically on the inner circumferential side of said fixed stator and said moving stator; and

a moving stator drive mounted on an inner surface of the support member and causing said moving stator to rotate by a predetermined angle, the moving stator drive and the support member together forming a moving stator drive unit;

wherein said moving stator drive is provided inside the housing when the support member is provided in the opening and the moving stator drive unit is detachable from the opening of said housing from outside the housing.

2. The electric rotating machine according to claim 1,

wherein a coil leader line of said moving stator is stored in an internal part of said housing so that said moving stator is capable of rotating by said predetermined angle.

3. The electric rotating machine according to claim 1, wherein said moving stator is disposed concentrically on the inner circumferential side of said fixed stator.

4. The electric rotating machine according to claim 1, wherein said fixed stator and said moving stator are disposed axially in parallel.

5. The electric rotating machine according to claim 1, wherein said moving stator drive is constructed of a gear provided at said moving stator, a gear engaged with said gear, and a motor driving said gear.

6. The electric rotating machine according to claim 5, wherein said gear and said motor of said moving stator drive are disposed in said housing.

7. The electric rotating machine according to claim 2, wherein said coil leader line is stored to be a length of not less than {(1+1/the number of poles of the rotor)×

outer circumferential length of the moving stator}.

8. The electric rotating machine according to claim 2, wherein a guide ring is disposed at the end of said moving stator, and said coil leader line is disposed in a helical fashion loosely with respect to said guide ring.

9. The electric rotating machine according to claim 1, wherein a rotation angle sensor is disposed so as to engage with a gear mounted at the end of said moving stator.

10. The electric rotating machine according to claim 1, wherein a stopper is disposed to regulate the range of rotation of said moving stator.

11. The electric rotating machine according to claim 1, wherein said moving stator is supported rotatably with respect to said housing via a roller.

12. The electric rotating machine according to claim 1, wherein the support member is flush with the outer surface of the housing when the moving stator drive unit is disposed in the opening of the housing.

13. The electric rotating machine according to claim 1, wherein the support member is substantially L-shaped and includes at least one flange configured to engage with the opening of the housing.