| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor with high cooling performance by reducing contact thermal resistance between the inner-periphery surface of a cooling jacket and the back surface of a stator iron core. SOLUTION: A rotor 5 and a stator iron core 6 faced each other via a clearance, and the rotor 5 and a stator 4 are covered with a frame 3. A cooling jacket 8 for passing a refrigerant for cooling the stator iron core 6 is formed between the frame 3 and the stator iron core 6. Through a inbt pipe 16 passing through the frame 3, a contact surface between the inner-periphery surface of the cooling jacket 8 and the back surface of the stator iron core 6 is injected with a charging material. Thus a gap is eliminated at the contact surface between the inner-periphery surface of the cooling jacket 8 and the back surface of the stator iron core 6, thereby enhancing heat conduction.
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