| 摘要 |
PROBLEM TO BE SOLVED: To effectively suppress heating of a rotor by utilizing a part of a refrigerant sucked by a compressor, in a compressor with a closed type electric motor. SOLUTION: In the compressor A with a closed type electric motor, a compressor 40 and an electric motor 53 for driving the electric motor are juxtaposed on a rotary shaft 30 supported by a closed container 10. The electric motor comprises a stator 55 fixed at the closed container; a rotor 70 having a permanent magnet 75 and revolvably supported at the closed container; and magnet cooling means 50 and 85 to gasify liquid refrigerant, fed from the opposite side in an axial direction of the compressor, and cause it to flow within the rotor toward the compressor and cool a permanent magnet. COPYRIGHT: (C)2004,JPO&NCIPI
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