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Totally Enclosed Type Main Drive Motor for Vehicle

  • US 20080030086A1
  • Filed: 09/29/2005
  • Published: 02/07/2008
  • Est. Priority Date: 10/01/2004
  • Status: Active Grant
First Claim
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1. A totally enclosed type main drive motor for a vehicle, comprising:

  • a cylindrical outer casing frame attached to the vehicle so that a central axis of the outer casing frame extend horizontally and intersects with a vehicle'"'"'s traveling direction at right angles;

    a stator core arranged on an inner circumference of the outer casing frame;

    a bracket having a bearing built-in, the bearing being arranged on one end of the outer casing frame;

    a housing having a bearing built-in, the bearing being arranged on the other end of the outer casing frame;

    a rotor shaft having its both ends supported by the bearing of the bracket and the bearing of the housing;

    a rotor core arranged in a substantially central part of the rotor shaft in a longitudinal direction thereof;

    a fan arranged on one end of the rotor shaft;

    openings formed in both axial ends of a peripheral wall of the outer casing frame, respectively;

    a pair of connective air ducts arranged outside the peripheral wall so as to communicate with the openings;

    a ventilation pipe connecting the connective air ducts with each other;

    a cooler containing the ventilation pipe and also releasing heat of air flowing in the ventilation pipe to outside air;

    a fan arranged on one end of the rotor shaft to allow air in the outer casing frame to flow into the cooler in circulation thereby cooling the air; and

    traveling-wind guiding means for collecting traveling wind flowing around the outer casing frame to the cooler.

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