发明名称 Heat pump device, and air conditioner, heat pump water heater, refrigerator, and freezer comprising same
摘要 The purpose of the present invention is to provide a heat pump device capable of efficiently and reliably preventing liquid refrigerant from accumulating inside a compressor by keeping an amount of electrical power supplied to the compressor motor to be constant and keeping an amount of heating to the compressor to be constant upon restrained energization of the compressor motor, and to provide an air conditioner, a heat pump water heater, a refrigerator, and a freezer which comprise the heat pump device. A heat pump device is configured such that, while the compressor is in operation standby, a high frequency voltage synchronized to a carrier signal is supplied to a compressor motor for restrained energization of the compressor motor. Detected values corresponding to one cycle of the high frequency energization cycle are restored from a phase-to-phase voltage, a phase voltage, or a phase current of the compressor motor for a plurality of cycles of high frequency energization, and control is performed so that the power value calculated using the restored detected values corresponding to one cycle of the high frequency energization cycle matches the heating power command necessary to discharge liquid refrigerant accumulating in the compressor to the exterior of the compressor.
申请公布号 AU2013390196(B2) 申请公布日期 2016.09.15
申请号 AU20130390196 申请日期 2013.05.23
申请人 MITSUBISHI ELECTRIC CORPORATION 发明人 HATAKEYAMA, KAZUNORI;KAMIYA, SHOTA;YUASA, KENTA;MATSUSHITA, SHINYA;KUSUBE, SHINSAKU
分类号 F25B1/00;F24F11/02;H02M7/48 主分类号 F25B1/00
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