The present disclosure provides a thermal management system for an electric vehicle. The electric vehicle may include a cabin, a battery system, a battery coolant loop including a battery coolant line thermally coupled to the battery system, a heat pump loop including a heat pump line thermally coupled to an internal heat exchanger, and a refrigerant-coolant heat exchanger thermally coupled to the battery coolant loop and the heat pump loop. The thermal management system may be configured to provide heating or cooling to the cabin or battery system depending on an operating mode.

A recreational vehicle air conditioning system supports multiple recreational vehicle air conditioning units having closed air conditioning circuits and a controller that is electronically coupled to each of the recreational vehicle air conditioning units to control each of the closed air conditioning circuits to regulate an overall power consumption of the multiple recreational vehicle air conditioning units. A recreational vehicle air conditioning system may also support multiple recreational vehicle air conditioning units where a refrigerant line set is coupled between the recreational vehicle air conditioning units such that a compressor in one of the recreational vehicle air conditioning units is capable of supplying refrigerant to the evaporators of the multiple recreational vehicle air conditioning units, and such that valves coupled in series with each of the evaporators may be regulated to control cooling by each recreational vehicle air conditioning unit.

A first sensor measures temperature at a first evaporator that cools a first zone. A second sensor measures temperature at a second evaporator that cools a second zone. A controller operates a compressor in a normal cooling mode or a single zone cooling mode. In the normal cooling mode, both the first zone and the second zone are cooled with the compressor operated by the controller in response to temperature measurements from one or both of the first sensor and the second sensor. In the single zone cooling mode, only the second zone is cooled with the compressor controlled by the controller in response to temperature measurements from the second sensor and the controller determining that the first evaporator has a low probability of accumulating frozen moisture on surfaces thereof, and in response to determining a high probability of accumulating frozen moisture on surfaces thereof the compressor is not operated.

An auxiliary heat exchanger separated from a main heat exchanger is disposed at the position facing a heat exhausting passage. The auxiliary heat exchanger switches among an inside air heat exchanging state in which a condenser performs heat exchange with the air inside the vehicle interior, an outside air heat exchanging state in which the condenser performs heat exchange with the air outside the vehicle interior, and a ventilation heat exchanging state in which the condenser performs heat exchange with the ventilation air. The auxiliary heat exchanger switches among an inside air heat exchanging state in which the evaporator performs heat exchange with the air inside the vehicle interior, an outside air heat exchanging state in which the evaporator performs heat exchange with the air outside the vehicle interior, and a ventilation heat exchanging state in which the evaporator performs heat exchange with the ventilation air.

A heat pump includes a refrigerant loop. The refrigerant loop includes an accumulator having an inlet and an outlet, a compressor, a first heat exchanger, and a first coupling point. The compressor includes a low-pressure inlet and an outlet. The low-pressure inlet is downstream of the outlet of the accumulator. The first heat exchanger includes an inlet and an outlet. The first coupling point is positioned immediately downstream of the outlet of the accumulator and immediately upstream of the low-pressure inlet of the compressor. The first coupling point is immediately downstream of the outlet of the first heat exchanger such that a first heat exchange fluid circulating through the refrigerant loop is directed to the low-pressure inlet of the compressor upon exiting the outlet of the first heat exchanger.

An injection type heat exchange module includes an outer tank composed of an upper chamber and a lower chamber separated from each other, an inner tank disposed inside the upper chamber of the outer tank to be heat-exchangeable with the refrigerant and connected to discharge the refrigerant to the compressor, the evaporator, or the lower chamber of the outer tank, a first valve disposed on an upper end of the inner tank; a second valve rotatably coupled to a lower end of the inner tank, and an actuator simultaneously connected to the first valve and the second valve to be operated to simultaneously rotate the first valve and the second valve, and a heat management system for a vehicle applying the same.

An injection-type heat exchange module includes an outer tank configured with upper and lower chambers, the upper chamber being connected in such a manner that refrigerant is introduced thereinto from an outer condenser or an inner condenser, and the lower chamber being connected in such a manner that the refrigerant is introduced thereinto from an evaporator and that the refrigerant is discharged therefrom to a compressor, an inner tank arranged inside the outer tank and connected in such a manner that the refrigerant is discharged therefrom to the compressor or the evaporator; a first valve arranged in an upper end portion of the inner tank, a second valve arranged in a lower end portion thereof, and an actuator connected to both the first valve and the second valve and operating in such a manner that the first and second valves are rotated at the same time.

The present disclosure provides a thermal management system for an electric vehicle. The electric vehicle may include a cabin, a battery system, a battery coolant loop including a battery coolant line thermally coupled to the battery system, a heat pump loop including a heat pump line thermally coupled to an internal heat exchanger, and a refrigerant-coolant heat exchanger thermally coupled to the battery coolant loop and the heat pump loop. The thermal management system may be configured to provide heating or cooling to the cabin or battery system depending on an operating mode.

A refrigerating and air-conditioning apparatus performs, even during a heating operation under air conditions leading to formation of frost, a defrosting operation while simultaneously continuing a heating operation and that improves comfort through heating by ensuring an appropriate amount of ventilation. A plurality of refrigeration cycles that are capable of independently performing a heating operation and a defrosting operation, are provided. A ventilation damper of an indoor unit in which a refrigeration cycle that performs a defrosting operation is installed is closed during a defrosting operation, and a ventilation damper of an indoor unit in which a refrigeration cycle that performs a heating operation is installed is controlled to achieve a required amount of ventilation corresponding to the indoor ventilation state.

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.