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Rotating motor and motor-driven vehicle

  • US 5,744,880 A
  • Filed: 06/20/1996
  • Issued: 04/28/1998
  • Est. Priority Date: 06/20/1995
  • Status: Expired due to Fees
First Claim
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1. A rotating motor comprising:

  • a rotating shaft having an outer surface and capable of rotating about an axis of rotation;

    a rotor fixedly mounted on the outer surface of said rotating shaft and having an outer surface and a winding, said rotor having opposite ends extending in a direction of the axis of rotation;

    a stator disposed around said rotor and having a winding;

    a frame to which the outer surface of said stator is mounted;

    end brackets mounted on said frame to form a case in which said rotor and said stator are housed and by which both ends of said rotating shafts are rotatably held via bearings;

    stator-cooling mechanisms provided with coolant passages for cooling said stator; and

    rotor-cooling mechanisms disposed close to at least one of said opposite ends of said rotor and provided with coolant passages for cooling said motor,wherein on at least one of said opposite ends of said rotor taken in the direction of the axis of rotation there are provided substantially annular rotor disks to be cooled, wherein said rotor-cooling mechanisms are equipped with substantially annular cooling disks spaced apart from and disposed opposite to said rotor disks in the direction of the axis of rotation, and wherein said coolant passages are provided in said cooling disks.

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