A transport climate control system for providing climate control to a climate controlled space of a transport unit. The transport climate control circuit includes a compressor, an evaporator and at least two fans. The transport climate control circuit also includes a controller for controlling the transport climate control circuit and for defrosting the evaporator coil. When a defrost event is triggered, the controller instructs the transport climate control circuit to supply heat to or around one section of the evaporator coil, and independently controls each of the at least two fans to move the air around the evaporator coil in a controlled direction so that heat from the one section of the evaporator coil is used to convectively heat the inlet of the evaporator coil.

A heat management system disclosed herein is used for an electric vehicle. The heat management system may comprise an oil cooler, an oil pump, a converter cooler, a first heat exchanger, a second heat exchanger, a first channel, a second channel, a channel valve, a bypass channel, and a controller. While executing the heat pump mode, the controller may be configured to periodically execute an operation of: switching the channel valve from the second valve position to the first valve position and activating the oil pump; and returning the channel valve from the first valve position to the second valve position and inactivating the oil pump in response to a predetermined time having passed.

Secondary loop air conditioning and heat pump systems include a reservoir with a capsule holding a phase change material.

A compressor apparatus for a vehicle is configured to compress and then heat refrigerant used in a heat pump system. A compression portion compresses refrigerant. A heating portion is provided integrally with the compression portion. An internal space in which the refrigerant discharged from the compression portion flows is defined in the heating portion. The heating portion heats and discharges the refrigerant flowing in the internal space.

An embodiment vehicle condenser includes a heater including an internal space coupled to receive a refrigerant and a heat exchanger integrally formed with the heater and configured to allow the refrigerant heated in the heater to exchange heat with ambient air. In an embodiment, the heat exchanger includes a plurality of flow-path pipes, wherein a first side of each of the flow-path pipes is integrally connected to the heater, a tank integrally connected to a second side of each of the flow-path pipes and configured to collect the refrigerant after heat is exchanged in the flow-path pipes, and a return pipe that defines a flow path for the refrigerant collected in the tank to be discharged after the refrigerant passes through the heater.

Thermoelectric enhanced hybrid heat pump systems are provided herein. A compressor increases the pressure of refrigerant within tubing. A first heat exchanger is downstream of the compressor and changes enthalpy of first fluid flow through heat exchange with refrigerant. A second heat exchanger changes enthalpy of second fluid flow through heat exchange with refrigerant. A thermoelectric device is downstream of the first heat exchanger and reduces refrigerant temperature. Expansion valves are downstream of the thermoelectric device and first heat exchanger, respectively located on first and second sides of the thermoelectric device, and expand refrigerant and reduce refrigerant pressure while conserving refrigerant enthalpy. At least one valve reverses refrigerant flow within the tubing without changing compressor operation. A control system controls the thermoelectric device and at least one valve to switch the heat pump system from heating mode to cooling mode and from cooling mode to heating mode.

The present invention relates to an air conditioner system, in which an air-cooled condenser mounted on a refrigerant circulation line between a water-cooled condenser and an expansion valve and a blower fan for blowing air to the air-cooled condenser are arranged at one side of the water-cooled condenser in a state of being disposed in a row in the air flow direction and are arranged within the width of the one side of the water-cooled condenser, thereby enabling the enhancement of installability and assemblability inside an engine room by simplifying and reducing the package, reducing noise of the blower fan and securing adequate cooling performance because of the blower fan disposed between two air-cooled heat exchangers even when inflowing air is insufficient, such as in an idling condition.

A cooling system for cooling a hybrid vehicle apparatus includes a compressor that circulates a refrigerant, a first heat exchanger that carries out heat exchange between the refrigerant and outside air, an expansion valve that reduces the pressure of the refrigerant, a second heat exchanger that carries out heat exchange between the refrigerant and air-conditioning air, a cooling portion that cools the hybrid vehicle apparatus using the refrigerant that flows between the heat exchanger and the expansion valve, a gas-liquid separator that separates the refrigerant that flows between the heat exchanger and the cooling portion into a liquid-phase refrigerant and a gas-phase refrigerant, and a liquid accumulator that is provided between the gas-liquid separator and the cooling portion, and that retains the liquid-phase refrigerant separated by the gas-liquid separator.

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 control method for a battery cooling system of a vehicle which is provided for controlling temperature of a battery module by using a refrigerant supplied to a chiller in the battery cooling system may include (A) determining, by a controller, whether an air conditioner is operated, while driving or stopping the vehicle in a state where the vehicle is started, (B) controlling, by the controller, a first expansion valve, and detecting, by the controller, the temperature of the battery module when the controller determines that the air conditioner is operated, and (C) determining, by the controller, selective operation of a second expansion valve through determining whether the temperature of the battery module, which is detected through the controlling in (B), is within a predetermined range.