A heat pump system may include a cooling apparatus configured to include a radiator, a first water pump, a first valve, a second valve, and a reservoir tank which are connected through a coolant line; a battery cooling apparatus including a battery coolant line connected to the coolant line through the first valve, and a second water pump and a battery module which are connected through the battery coolant line to circulate the coolant in the battery module; a heating apparatus including a heating line connected to the coolant line through the second valve and a third water pump provided on the heating line, and a heater; a chiller provided in the battery coolant line between the first valve and the battery module, connected to a chiller connection line through the second valve connected to the chiller connection line, and connected to a refrigerant line of an air conditioner through a refrigerant connection line.

There is disclosed a vehicle air-conditioning device in which a refrigerant subcool degree in a radiator is appropriately controlled, so that comfortable and efficient vehicle interior air conditioning is achievable. The vehicle air-conditioning device executes a heating mode in which a controller lets a refrigerant discharged from a compressor 2 radiate heat in a radiator 4, decompresses the refrigerant by which heat has been radiated by an outdoor expansion valve 6, and then lets the refrigerant absorb heat in an outdoor heat exchanger 7. In the heating mode, the vehicle air-conditioning device controls a refrigerant subcool degree SC of the radiator 4 by the outdoor expansion valve 6. On a basis of a radiator inlet air temperature THin that is a temperature of the air flowing into the radiator 4, the controller corrects a target subcool degree TGSC that is a target value of the refrigerant subcool degree SC in the radiator 4 in a lowering direction, as the radiator inlet air temperature THin rises.

A heating temperature is appropriately estimated according to an operation mode to achieve comfortable vehicle interior air conditioning. A vehicular air conditioning device 1 includes a compressor 2, an air flow passage 3, a radiator 4 for heating air to be supplied to a vehicle interior, a heat absorber 9 for cooling the air to be supplied to the vehicle interior, and a heat pump controller. The heat pump controller calculates a heating temperature TH being the temperature of air on a leeward side of the radiator and use the heating temperature in control, and calculates the heating temperature TH using an estimation formula which differs depending on the operation mode.

The present disclosure provides an accumulating/receiving device for a heat pump system. The accumulating/receiving device includes a body, an inlet, a first outlet, and a second outlet. The body defines therein a space. The body is disposed downstream of an outside heat exchanger. The inlet is connected to the outside heat exchanger through a first conduit. The first outlet is connected to an inside heat exchanger through a second conduit. The second outlet is connected, through a bypass conduit, to a third conduit. A liquid of the refrigerant flows out of the body through the first outlet in a cooling mode. A vapor of the refrigerant flows out of the body through the second outlet in a heating mode.

A heat pump system may include a cooling apparatus configured to include a radiator, a first water pump, a first valve, a second valve, and a reservoir tank which are connected through a coolant line; a battery cooling apparatus including a battery coolant line connected to the coolant line through the first valve, and a second water pump and a battery module which are connected through the battery coolant line to circulate the coolant in the battery module; a heating apparatus including a heating line connected to the coolant line through the second valve and a third water pump provided on the heating line, and a heater; a chiller provided in the battery coolant line between the first valve and the battery module, connected to a chiller connection line through the second valve connected to the chiller connection line, and connected to a refrigerant line of an air conditioner through a refrigerant connection line.

A thermal management system for a motor vehicle includes a heating circuit with an interior compartment heat exchanger; a refrigeration circuit with a compressor; a condenser which is arranged in the heating circuit and in the refrigeration circuit, wherein the heating circuit and the refrigeration circuit are fluidically separated from one another in the condenser; and a chiller, which is arranged in the heating circuit and in the refrigeration circuit. The heating circuit and the refrigeration circuit are fluidically separated from one another in the chiller. In a heating mode, the interior compartment heat exchanger, the chiller and the condenser are connected in series in the heating circuit.

A vehicle-mounted temperature controller includes a low temperature circuit and a refrigeration circuit. The low temperature circuit has a heat generating equipment heat exchanger exchanging heat with heat generating equipment, a radiator, a first heat exchanger, and a three-way valve. The refrigeration circuit has a second heat exchanger discharging heat from the refrigerant to a high temperature circuit to make the refrigerant condense, and the first heat exchanger making the refrigerant absorb heat from the cooling water to make the refrigerant evaporate. The low temperature circuit includes a first partial circuit through which the cooling water flows through the radiator and the first heat exchanger, and a second partial circuit through which the cooling water flows through the heat generating equipment heat exchanger without passing through the radiator and the first heat exchanger. The cooling water circulates simultaneously and separately at these first partial circuit and second partial circuit.

A thermal management system includes a refrigerant system and a coolant system. The refrigerant system includes a compressor, an indoor heat exchanger, a first flow regulating device, a first heat exchanger and an outdoor heat exchanger. The outdoor heat exchanger includes a first port and a second port. The first flow regulating device has a bi-directional throttling function. The first heat exchanger includes a first heat exchange section and a second heat exchange section. The thermal management system has a heating mode and a cooling mode which can be achieved by the same first flow regulating device. A control method of the thermal management system is also disclosed.

Disclosed is a vehicle air conditioner, wherein an integrated air conditioning module using a heat pump system enables, in order to secure interior space, the optimizing of the arrangement thereof and the arrangements among the elements thereof, and the increasing of a coupling force between an air conditioning module and a distribution duct.

A thermal management device having an indirect air conditioning circuit for a motor vehicle is disclosed. The device has a first refrigerant fluid loop (A) with a compressor, a two-fluid heat exchanger, a first expansion device, an evaporator, a second expansion device, an evaporator/condenser, and a first by-pass line including a first stop valve, a first and a second internal heat exchanger. A second by-pass line includes a third expansion device arranged upstream from a cooler, a shunt branch comprising a first external radiator. The device also has a second heat transfer fluid loop (B) in which a heat transfer fluid is intended to flow. The two-fluid heat exchanger is arranged jointly on the one hand on the first refrigerant fluid loop downstream of the compressor, between said compressor and the first expansion device, and on the second heat transfer fluid loop (B).