Vehicular heat management system
A vehicular heat management system for individually cooling and heating a plurality of air conditioning regions of a vehicle includes a plurality of refrigerant circulation lines configured to cool and heat the air conditioning regions individually shared by the refrigerant circulation lines. The refrigerant circulation lines are provided with one or more air conditioning units for individually cooling and heating the respective air conditioning regions, and are configured to supply a refrigerant to the corresponding air conditioning units to individually cool and heat the air conditioning regions corresponding to the air conditioning units.
1. A vehicular heat management system, comprising:
a water-cooled cooling device configured to individually cool a plurality of cooling target objects of a vehicle in a water-cooled manner,
wherein the water-cooled cooling device includes cooling water circulation lines for circulating cooling water between the cooling target objects and radiators, and
the cooling water circulation lines have independent cooling water circulation structures provided in a corresponding relationship with the cooling target objects so as to independently cool the cooling target objects having different heat generation temperatures, and
wherein the water-cooled cooling device includes a battery module side cooling water circulation line for circulating cooling water between a battery module and a first radiator to cool the battery module, and an electric component module side cooling water circulation line for circulating cooling water between an electric component module and a second radiator to cool the electric component module,
wherein the battery module side cooling water circulation line and the electric component module side cooling water circulation line have independent cooling water circulation structures provided in a corresponding relationship with the battery module and the electric component module so as to independently cool the battery module and the electric component module, respectively, and
wherein the first radiator of the battery module side cooling water circulation line and the second radiator of the electric component module side cooling water circulation line have a common body,
wherein the common body includes an electric component module cooling region through which the cooling water of the electric component module side cooling water circulation line can be circulated, and a battery module cooling region through which the cooling water of the battery module side cooling water circulation line can be circulated, and
wherein the battery module side cooling water circulation line is configured to receive a cold air generated in a low-pressure side heat exchanger of an air conditioner in a water-cooled manner, and circulates the received cold air through the battery module in a water-cooled manner to cool the battery module, and
further comprising:
a cooling water flow control part configured to control a flow of the cooling water of the battery module side cooling water circulation line so as to circulate the cooling water between the battery module and the low-pressure side heat exchanger or between the battery module and the first radiator,
wherein the cooling water flow control part is configured to allow one of the cooling water circulating through the low-pressure side heat exchanger and the cooling water circulating through the first radiator to selectively cool the battery module, and
wherein the cooling water flow control part includes a bypass valve configured to bypass the cooling water of the battery module side cooling water circulation line passed through the battery module toward the first radiator, and a return line configured to return the cooling water passed through the first radiator toward the battery module, and
the bypass valve is configured to, when the air conditioner is turned on, allow the cooling water passed through the low-pressure side heat exchanger to be introduced into the battery module so that the cooling water is circulated between the low-pressure side heat exchanger and the battery module, and is configured to, when the air conditioner is turned off, bypass the cooling water passed through the battery toward the first radiator so that the cooling water is circulated between the battery module and the first radiator.