A heat pump system for a vehicle is provided. The system includes a battery coolant line connected to a battery module. A cooling device selectively connected to the battery coolant line includes a radiator and a first water pump, to circulate a coolant therein. A first chiller is disposed in the battery coolant line and connected to a refrigerant line of an air conditioner to adjust a temperature of a coolant. A second chiller is selectively connected to the coolant line and selectively connected to the refrigerant line to increase a temperature of a coolant by selectively exchanging heat between the coolant and a refrigerant flowing into the second chiller. An integrated control valve is connected to the refrigerant line, the first connecting line, and the second connecting line to adjust a refrigerant flow direction and to selectively expand a refrigerant passing through the integrated control valve.

A heat pump system for vehicle may include first cooling apparatus that includes first radiator and first water pump connected by first coolant line, second cooling apparatus that includes second radiator and second water pump connected by second coolant line, battery module provided in battery coolant line selectively connectable to second coolant line through first valve, and chiller provided in battery coolant line, connected to refrigerant line of air conditioner through refrigerant connection line, and adjusting coolant temperature by heat-exchanging selectively received coolant with refrigerant, wherein main heat-exchanger provided is connected to first and second coolant lines to receive coolant circulating first and second cooling apparatuses, and wherein main heat-exchanger is connected to first and second connection lines connected to refrigerant line through refrigerant valve to condense or evaporate refrigerant through heat-exchanging with coolant such that flow direction of refrigerant is changed depending on mode of vehicle.

A heat pump system includes a compressor, a fluid switching device, a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger, a flow regulating device and a throttle element. The second heat exchanger includes a first heat exchange portion and a second heat exchange portion. An outlet of the first heat exchange portion communicates with the throttle element. An inlet of the first heat exchange portion communicates with at least one of a second port of the third heat exchanger and an outlet of the fourth heat exchanger. An inlet of the second heat exchange portion communicates with the outlet of the first heat exchanger. An outlet of the second heat exchange portion communicates with an inlet of the compressor. In a heating mode, the function of the second heat exchanger is reduced, thereby the heating capacity of the heat pump system is improved.

A thermal management system includes a compressor, an outdoor heat exchanger, a first valve control device, a first indoor heat exchanger, a second indoor heat exchanger and a second valve control device. The thermal management system includes a heating and dehumidifying mode. The first valve control device and the second valve control device both include a fully open mode and a throttle mode. In the heating and dehumidifying mode, the second valve control device is in the throttle mode, and the first valve control device is in the throttle mode or the fully open mode. In the cooling mode, the first valve control device is in the throttle mode, and the second valve control device is in the fully open mode or the throttle mode.

A vehicle climate control system includes an air conditioning unit including an exterior heat exchanger, an interior heat exchanger, an evaporator, a compressor, a first expansion valve, and a second expansion valve. A seat coil is embedded in a vehicle seat and connected to the air conditioning unit through a first inlet passage, a first outlet passage, a second inlet passage, and a second outlet passage. The compressor is selectively connected to the exterior heat exchanger, the evaporator, the interior heat exchanger, and the seat coil. The first expansion valve is selectively connected to an outlet of the exterior heat exchanger, an inlet of the evaporator, and the seat coil. The second expansion valve is selectively connected to an outlet of the interior heat exchanger, an inlet of the exterior heat exchanger, and the seat coil air conditioning unit.

A thermal management system comprises a coolant system and a separate refrigerant system that are both selectively interconnectable to a chiller. The coolant system includes a radiator and a plurality of fluid lines forming a selectable interconnectable array of coolant loops. This array includes an energy storage system coolant loop and an electrical drive system coolant loop that are separately interconnectable with the radiator and that control the temperature of the energy storage system and the electrical drive system of an electric vehicle. The refrigerant system includes a condenser, an internal heat exchanger, and an array of refrigerant loops that control the temperature of a cabin of the electric vehicle. Together, the coolant system and the refrigerant system provide multiple thermal control modes for components of an electric vehicle.

The present invention relates to a thermal management system including: a refrigerant circulation line including a refrigerant circulator, a first heat exchanger, a first expander and a third heat exchanger, wherein refrigerant circulates in the refrigerant circulation line; a heating line for heating the interior by circulating cooling water exchanging heat with the refrigerant through the first heat exchanger; and a cooling line for cooling heating sources by exchanging heat between the cooling water and air or exchanging heat between the cooling water and the refrigerant.

A vehicle HVAC system includes a compressor, a first heat exchanger for exchanging heat between the refrigerant outside air, a first check valve set, a first expansion device for decompressing a first portion of the refrigerant, a second heat exchanger for exchanging heat between the first portion of the refrigerant and a second portion of the refrigerant, a second expansion device for decompressing the second portion of the refrigerant, a second check valve set, a third heat exchanger for exchanging heat between the refrigerant and inside air, and a selector valve for switching between a heating mode and a cooling mode. The first check valve set and the second check valve set together maintain a constant flow direction through the first expansion device, the second heat exchanger, and the second expansion device between the heating mode and the cooling mode.

A heat pump air conditioner assembly for an electric vehicle and a control method thereof, and an electric vehicle with the heat pump air conditioner assembly for the electric vehicle are provided. The heat pump air conditioner assembly includes a heat pump air conditioning system and a HVAC box body. An in-vehicle heat exchanger of the heat pump air conditioning system is located in the HVAC box body. An auxiliary heater is also arranged in the HVAC box body. The auxiliary heater is located at a leeward side of the in-vehicle heat exchanger. The heat pump air conditioning system is provided with a defrosting branch connecting with a refrigerant outlet of an external heat exchanger and a suction port of a compressor. When the heat pump air conditioning system is in a defrosting mode, the HVAC box body supplies air to the vehicle, the auxiliary heater is turned on.

A heat pump system, comprising a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, an intermediate heat exchanger, a first throttling element and a first valve member, wherein the intermediate heat exchanger comprises a first heat exchange portion and second heat exchange portion that may carry out heat exchange; a first port of the first heat exchange portion communicates with an inlet of the compressor; a second port of the first heat exchange portion may communicate with at least one among an outlet of the second heat exchanger and a second port of the third heat exchanger; and a first port of the second heat exchange portion may communicate with a first port of the third heat exchanger.