Provided is a vehicle air conditioning device that can save the space for installing constituent apparatuses of a vehicle by using a heater for multiple purposes and reduce the manufacturing cost. Heating assisting operation for heating air to be supplied into a cabin is performed in a manner that a heat medium heated by a heat medium heater 32 in a heat medium circuit 30 flows to a heat medium radiator 16 without flowing on a battery B side while heating operation is performed.

An intermediate refrigerant store of a refrigerant system may include a storage container delimiting a refrigerant storage space, a first feed, and a second feed separate from the first feed. The first feed and the second feed may be fluidically connected with the refrigerant storage space for feeding of a refrigerant. At least one discharge may be fluidically connected to the refrigerant storage space and may be configured to discharge the refrigerant from the refrigerant storage space. At least one valve arrangement may be disposed in an associated feed of the first feed and the second feed via which the associated feed may be fluidically closable and openable.

A climate control system and method controls climate at selected regions within a passenger compartment of a vehicle. The thermoelectric system includes a plurality of thermoelectric assemblies. The system includes at least one fluid conduit configured to allow a liquid to flow in the at least one fluid conduit. The system further includes a plurality of thermoelectric assemblies. At least two thermoelectric assemblies of the plurality of thermoelectric assemblies are in thermal communication with the liquid and each of the at least two thermoelectric assemblies has a corresponding region within the passenger compartment. The at least two thermoelectric assemblies are selectively operable to transfer heat between the corresponding region and the liquid, wherein the at least two thermoelectric assemblies are each operable independently from one another.

A heat pump for a vehicle is provided in which the heat pump includes a compressor, an inner heat exchanger, an outer heat exchanger, a first expansion unit, a second expansion unit, an evaporator, an accumulator, a third heat exchanger, a first directional control valve, a second directional control valve, and a dehumidification line, and performs cooling, heating, defrosting, and dehumidifying operations according to the flow of a refrigerant.

A reversible thermal management device for a motor vehicle includes a refrigerant fluid circuit containing a main loop which has, successively, a compressor, an internal condenser, a first expansion device and an external evaporator/condenser, a first, second, and third bypass branch, the third branch having at least one heat exchanger, a device for redirecting the refrigerant fluid coming from the internal condenser towards the first expansion device or the first bypass branch, a stop valve for the refrigerant fluid, arranged on the main loop, a first check valve arranged on the second bypass branch to block the refrigerant fluid coming from the internal condenser, a second check valve arranged on the main loop to block the refrigerant fluid coming from the evaporator/condenser, and a device for redirecting the refrigerant fluid coming from the first expansion device towards the at least one heat exchanger of the third bypass branch or the evaporator/condenser.

A heat pump system for a vehicle utilizes one chiller in which a coolant and a refrigerant are heat-exchanged to adjust a temperature of a battery module, and utilizes a sub-CE module (sub-centralized energy module) with waste heat of an electrical component in a heating mode of the vehicle to improve heating efficiency.

An integrated heat management system for a vehicle includes a refrigerant circulation line configured to cool or heat a passenger compartment while operating in an air conditioner mode or a heat pump mode according to a flow direction of a refrigerant, an electric component module side cooling water circulation line configured to circulate the cooling water through the electric component module to cool the electric component module, a water-cooled outdoor heat exchanger configured to allow the refrigerant circulating through the refrigerant circulation line to exchange heat with the cooling water circulating through the electric component module side cooling water circulation line, and a cooling water flow control unit configured to control a cooling water flow in the electric component module side cooling water circulation line.

A refrigeration system having a heat pump function for a motor vehicle. The refrigeration system includes: a refrigerant compressor which is connectable or connected to a primary line; a directly or indirectly acting external heat exchanger, which is arranged in the primary line; a first evaporator, which is arranged in the primary line; a first directly or indirectly acting heat exchanger, in particular a chiller, which is arranged fluidically in parallel to the evaporator; and a refrigerant collector arranged on the low-pressure side. A single sensor device is arranged downstream of the evaporator and the further heat exchanger, in particular the chiller, which is configured to detect the pressure and the temperature of the refrigerant on the low-pressure side of the refrigeration system.

A heat pump arrangement and a method of operating a heat pump arrangement. The heat pump arrangement has a refrigerant circuit and a coolant circuit, wherein the coolant circuit is configured for indirect battery heating. The refrigerant circuit includes a compressor, a heating condenser, a 3/2-way expansion valve, an external heat exchanger, at least one evaporator with an associated expansion element as well as a 3/2-way expansion valve arranged in parallel to the evaporator, and a battery chiller. The coolant circuit includes a coolant cooler and a battery heat exchanger with an associated coolant pump and at least one drive train cooler with an associated coolant pump arranged in parallel to the battery heat exchanger.

In a refrigeration cycle device, in an operation mode in which a refrigerant does not flows into a cooling evaporator, a throttle opening degree characteristic of a heat absorption valve disposed upstream of a heat absorption evaporator is set to cause the refrigerant on the outlet side of the heat absorption evaporator to be in a gas-liquid two-phase state.