A first case member of a blower unit has a first communication passage communicating with an air intake side of a blower. A second case member of a temperature adjustment unit has a second communication passage communicating with a condensed water discharge portion through which condensed water is discharged. The respective case members are joined with each other in a state where a portion forming the first communication passage and a portion forming the second communication passage face each other. The portion of the first communication passage includes a drain portion having a groove shape and configured to discharge water in the first communicating passage. The portion of the second communication passage includes a drain receiving portion having a groove shape, communicating with the first communication passage and receiving the water discharged from the drain portion.

An air conditioning unit for a vehicle includes: a first channel having a first inlet and a first outlet, and having a first blower fan and a heating core therein; a second channel having a second inlet and a second outlet, and having a second blower fan and a cooling core therein; a bypass channel diverging from the second outlet of the second channel and connected with the first inlet of the first channel; and a control door disposed between the bypass channel and the first channel and selectively closing the bypass channel or the first inlet such that the first channel and the second channel are disconnected when the bypass channel is closed, and interior air is introduced through the second inlet and the second outlet and then discharged to the exterior through the first outlet when the first inlet is closed.

A heating, ventilation and air conditioning (HVAC) system of a vehicle includes: an indoor air conditioning circuit which produces to supply cooling air to a vehicle interior by heat-exchanging inflow air through an indoor air inlet or an outdoor air inlet with an evaporator, and which produces to supply warm air to the vehicle interior or to discharge to the outside of the vehicle interior by heat-exchanging inflow air with a heat exchanger. The heat exchanger is connected with an engine cooling circuit so that engine coolant is used as a heat source of the heat exchanger, thereby improving the cooling performance of the ERG cooler.

An air-conditioning system for a vehicle includes: a blower unit connected to an internal air flow path and an external air flow path and configured to selectively suction or discharge air; a flow path housing configured to guide air suctioned through the blower unit to the interior of the vehicle; a carbon dioxide capture module configured to selectively capture carbon dioxide contained in the air flowing into the flow path housing; and a door disposed between the flow path housing and the carbon dioxide capture module in order to selectively open or close the flow path housing.

A thermal management system for an electric vehicle includes an interior air conditioning part including an air inflow part, an air discharge part, a cooling core, a heating core arranged between the cooling core and the air discharge part, and an adjustment door for selectively adjusting whether air having passed through the cooling core flows into the heating core; and a heat transfer line having first and second sides respectively connected to an electric part core and the heating core to be heat-transferrable, so that heat of the electric part is transferred to the heating core, thereby allowing the electric part to heat-dissipate through the heating core.

An air conditioner includes an air conditioning unit installed in a cabin, and a supply unit supplying air conditioned by the air conditioning unit to the cabin. The air conditioning unit includes a refrigeration cycle device having a compressor, a radiator, a decompression device, and an evaporator. One of the radiator and the evaporator functions as a use-side heat exchanger that generates conditioned air by heat exchange between refrigerant and air. The refrigeration cycle device has a high-pressure protection device that discharges the refrigerant to the outside when the pressure of the refrigerant flowing through a passage, which is defined from a refrigerant discharge side of the compressor to a refrigerant inlet side of the decompression device, exceeds a predetermined reference pressure. The high-pressure protection device is configured to discharge the refrigerant to the outside through an outside communication portion communicated with the outside of the cabin.

The present invention relates to a blower unit of an air conditioner for a vehicle, which can enhance air-conditioning performance through uniform upper and lower pressure control since compensating and supplementing different air resistances between an upper scroll case and a lower scroll case. The blower unit of the two-layered air conditioner for a vehicle, which separates and blows indoor air and outdoor air, includes: a first scroll in which a first blower wheel is disposed and a first air passageway is formed; and a second scroll arranged below the first scroll, and having a second blower wheel and a second air passageway, wherein a diameter of the second blower wheel and a diameter of the first blower wheel are different from each other.

A vehicle includes an outside air passage, accommodation cases, an outside air communication opening, an outside air valve, a case communication opening, and a case valve. The outside air passage is capable of allowing outside air to flow through the outside air passage. The accommodation cases are disposed to be compatible with the outside air passage and accommodate predetermined units independently. The outside air communication opening is capable of allowing communication between the outside air passage and the accommodation case. The outside air valve is capable of opening or closing the outside air communication opening. The case communication opening is capable of allowing communication between adjacent ones of the accommodation cases. The case valve is capable of opening or closing the case communication opening.

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 vehicle air handling system includes an air duct housing, a particulate sensor, a first air blower and an electronic controller. The air duct housing has an air inlet and a passenger compartment vent. The particulate sensor is configured to detect a particulate level of particulates in the air duct housing. The first air blower is disposed in the air duct housing to move air within the air duct housing. The electronic controller is operatively coupled to the particulate sensor and the first air blower. The electronic controller is configured to operate the first air blower to reverse an air direction of the first air blower away from the passenger compartment vent upon detection of the particulate level of the particulates in the air duct housing being equal to or greater than a predetermined particulate threshold level in the air duct housing.