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    • 1. 发明专利
    • Air conditioning device for vehicle
    • 车用空调装置
    • JP2009235982A
    • 2009-10-15
    • JP2008082749
    • 2008-03-27
    • Denso Corp株式会社デンソー
    • KURIBAYASHI NOBUKAZUKURODA YASUTAKAOMURA MITSUYOMATSUNAGA TAKESHIITO SEIJI
    • F04B49/10F25B1/00
    • B60H1/3225B60H2001/3238B60H2001/3285B60H2001/3292F25B49/005F25B49/027F25B2600/2513F25B2700/171F25B2700/21156
    • PROBLEM TO BE SOLVED: To execute temperature protection control for avoiding temperature rise of an electric motor for an electric compressor without stopping the electric compressor. SOLUTION: An air conditioning device is provided with; the electric compressor 11 including a compression mechanism 11b for sucking and compressing a refrigerant and an electric motor 11a capable of driving the compression mechanism 11b and cooling the compression mechanism 11b by the refrigerant at a suction side; variable throttle mechanisms 12, 16 decompressing refrigerant delivered from the electric compressor 11; a motor temperature detection means detecting motor temperature of the electric motor 11a; a protection determination means judging whether motor temperature detected by the motor temperature detection means is not less than a reference value or not; and a motor protection control means controlling the variable throttle mechanisms 12, 16 at least not to reduce opening thereof when it is determined by the protection determination means that the motor temperature detected by the motor temperature detection means is not less than the reference value. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了执行用于避免电动压缩机的电动机的温升而不停止电动压缩机的温度保护控制。

      解决方案:设有空调装置; 电动压缩机11包括用于吸入和压缩制冷剂的压缩机构11b和能够驱动压缩机构11b并且通过吸入侧的制冷剂冷却压缩机构11b的电动机11a; 可变节气门机构12,16减压从电动压缩机11输送的制冷剂; 电动机温度检测装置,用于检测电动机11a的电动机温度; 判断电动机温度检测装置检测出的电动机温度是否不小于参考值的保护判定装置; 以及电动机保护控制装置,当由保护判定装置确定由电动机温度检测装置检测到的电动机温度不小于参考值时,控制可变节流机构12,16至少不会使其开启。 版权所有(C)2010,JPO&INPIT