Totally Enclosed Type Main Drive Motor for Vehicle
First Claim
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.
1 Assignment
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Accused Products
Abstract
A totally enclosed type main drive motor for a vehicle includes a stator core arranged on an inner circumference of an outer casing frame, a bracket arranged on one end of the outer casing frame to have a bearing built-in, a housing arranged on the other end of the outer casing frame to have a bearing built-in, a rotor shaft having its both ends supported by the respective bearings, a rotor core arranged on the rotor shaft, 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, connective air ducts arranged outside the peripheral wall so as to communicate with the openings and a cooler for connecting these connective air ducts with each other and also releasing heat of air flowing in the connective air ducts to outside air. The outer casing frame is attached to the vehicle so that a central axis of the outer casing frame extends horizontally and intersects with a traveling direction of the vehicle at right angles. With rotation of the fan, air inside the outer casing frame flows in the cooler in circulation to cool down the air. The totally enclosed type main drive motor is provided with guide plates that collect traveling wind flowing around the outer casing frame to the cooler.
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Citations
32 Claims
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1. A totally enclosed type main drive motor for a vehicle, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A totally enclosed type main motor comprising:
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a rotor core;
a plurality of rotor ventilation holes formed on an inner circumferential side of the rotor core;
an inside-air circulating fan arranged on an end of a rotor shaft, the end being positioned in the motor;
openings arranged on both end sides of a stator frame;
a cooler arranged outside the stator frame;
connective air ducts arranged outside the openings on both sides of the stator frame, respectively;
a cooling air duct in the form of a tube having a surface between the connective air ducts; and
a plurality of radiator fins arranged on an outer circumferential surface of the cooling air duct, wherein the connective air ducts have respective inside spaces whose respective one ends are communicated with an in-motor space through the openings of the stator frame and whose respective other ends are communicated with an inside space of the cooling air duct, and the in-motor space in the cooler is communicated with the openings on both sides of the stator frame, thereby allowing in-motor air to circulate in the cooler in order to cool it. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification