An electric compressor includes an electric motor, a filter circuit, a capacitor, an inverter circuit, a drive circuit, a power supply circuit, a switch that connects or disconnects a power supply path that passes power from the power supply circuit to the drive circuit, and a control circuit that controls an operation of the switch. The control circuit connects the power supply path in response to the voltage between the capacitor and the inverter circuit being higher than that between the power supply circuit and the drive circuit, and the control circuit disconnects the power supply path in response to the voltage between the capacitor and the inverter circuit being lower than the voltage between the power supply circuit and the drive circuit.
Electric compressor
2025-04-22
Patent
Electronic Resource
English
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS |
ELECTRIC COMPRESSOR CONTROL DEVICE, ELECTRIC COMPRESSOR, AND ELECTRIC COMPRESSOR CONTROL METHOD
European Patent Office | 2024
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