The present invention relates to a heating device for a motor vehicle with a dual-voltage vehicle electrical system. The heating device is operated with a power supply from the sub-system with the higher nominal voltage (for example 48 V), but actuated by a control device in the sub-system with the lower nominal voltage (for example 12 V). For this purpose, the heating device has a supply connection in the sub-system with the higher nominal voltage and a control connection in the sub-system with the lower nominal voltage. The control connection is disposed in particular on a control device which is integrated into the heating device and which is connected to a control connection of a switching element (power semiconductor) for controlling the heating device via a capacitive separating element in order to ensure potential isolation of the two sub-systems.
本发明涉及一种用于具有双电压车辆电气系统的机动车辆的电加热装置。该加热装置使用来自具有较高标称电压(例如48V)的子系统的电源进行操作,但由具有较低标称电压(例如12V)的子系统中的控制装置致动。为此,加热装置在具有较高标称电压的子系统中具有电源连接件,并且在具有较低标称电压的子系统中具有控制连接件。特别地,控制连接件设置在控制装置上,该控制装置集成在加热装置中,并且该控制装置经由电容分离元件连接到开关元件(功率半导体)的控制连接件以用于控制加热装置,从而确保两个子系统的电势隔离。
Electric Heating Device for a Motor Vehicle
用于机动车辆的电加热装置
2021-05-28
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 |
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