HEAT STORAGE DEVICE OF VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a heat storage device of a vehicle that can substitute a PTC heater and a warm-up additional device and decreases the fuel consumption and overcomes the environmental control.

SOLUTION: The heat storage device contains: a heat insulating container that is formed with a passage entrance and a passage outlet; a cooling water passage that is disposed to penetrate the passage entrance and the passage outlet, and of which one end is coupled to a cooling water discharge port of an engine and the other end is coupled with a cooling water inflow port of the engine and the cooling water circulates; a heat exchanger that has a cooling fin that is formed on the cooling water passage inside the heat insulating container; a phase change material filled inside the heat insulating container and performs heat exchange with the cooling water that flows the cooling water passage through the cooling fin; a phase change material temperature sensor that perceives the phase change material temperature; a heat insulating container internal pressure sensor; a temperature sensor of engine cooling water that circulate the engine; and a control part that makes the cooling water circulate through the cooling water passage according to the engine operating condition and the temperature of the cooling water, and makes the cooling water and the phase change material exchange the heat each other.

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