| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor for a vehicle that ensures a sufficient strength and a ventilating and cooling performance in the motor. SOLUTION: The motor for a vehicle takes in cooling air to one end side in the axial direction of the motor from a cooling air inlet 21, ventilates the cooling air to the other end side of the motor and exhausts the cooling air outside the motor from an air exhaust port. The motor for the vehicle includes first and second cooling air ventilating passages 51a and 51c and third and fourth cooling air ventilating passages 51b and 51d. The first and second cooling air ventilating passages 51a and 51c are formed on an outer periphery of an iron core of a stator and an upper half periphery where the cooling air inlet 21 is present to ventilate part of the cooling air taken in from the cooling air inlet 21. The third and fourth cooling air ventilating passages 51b and 51d are formed on an outer periphery of the iron core of the stator and a lower half periphery to ventilate part of the cooling air taken in from the cooling air inlet 21. An air volume of the cooling air flowing in each of the first and second cooling air ventilating passages 51a and 51c is smaller than an air volume of the cooling air flowing in each of the third and fourth cooling air ventilating passages 51b and 51d. COPYRIGHT: (C)2011,JPO&INPIT |
