HEATING SYSTEM FOR ELECTRIC VEHICLE

摘要

A heating system for an electric vehicle heats an interior thereof by the driving force of a drive motor is activated by battery power, and includes: a heat exchanger that is connected to the drive motor via a cooling line circulating cooling water between the battery and the drive motor; a PTC connected to the battery via the cooling line and activated by battery power; a heat storage unit that collects and stores thermal energy from the cooling water, with its temperature raised while cooling the drive motor, and connected in series to the drive motor and the battery via the cooling line; and a valve unit installed in the cooling line interconnecting the drive motor, the heat exchanger, and the heat storage unit, which selectively connects the cooling line to the drive motor, the heat exchanger, and the heat storage unit by opening and closing operations.

主权项

1. A heating system for an electric vehicle heats the inside of the electric vehicle running by the driving force of a drive motor activated by power supplied from a battery, the heating system comprising:
a heating heat exchanger connected to the drive motor via a cooling line through which cooling water circulates between the battery and the drive motor; a positive temperature coefficient heater (PTC) connected to the battery via the cooling line and activated by the power of the battery; a heat storage unit that collects and stores thermal energy from the cooling water, with its temperature raised while cooling down the drive motor, and connected in series to the drive motor and the battery via the cooling line; and a valve unit installed in the cooling line interconnecting the drive motor, the heating heat exchanger, and the heat storage unit, wherein the valve unit selectively connects the cooling line to the drive motor, the heating heat exchanger, and the heat storage unit by opening and closing operations.