A vehicle air conditioning apparatus includes an air conditioning case including a case body having a case opening that is open to an air conditioning opening, and a case cover that can open and close the case opening. The case cover can be attached/detached to/from the case body via the air conditioning opening outside of the vehicle interior. An evaporator and a heater can be attached/detached to/from the case body via the air conditioning opening outside of the vehicle interior, while the case cover is removed from the case body to open the case opening.

A heating, ventilation and/or air conditioning device is disclosed. The device includes at least one air inlet, at least one air outlet which is able to direct the flow of air to a front area of the passenger compartment, and a second air outlet which is able to direct the flow of air to a rear area of the passenger compartment. The device also includes one first heat exchanger and one second heat exchanger positioned downstream from the first heat exchanger relative to a direction of circulation of the flow of air within the device. The device also includes one first chamber for mixing the flow of air which is connected fluidically to the first air outlet and at least one second chamber for mixing the flow of air which is connected fluidically to the second air outlet.

In an air conditioning system, a condenser is provided in the first heat exchange air duct, the first air inlet end includes a first air inlet communicated with a circulating air inlet inside the vehicle and a second air inlet communicated with the outside of the vehicle, and the first air outlet end is respectively communicated with a first air outlet communicated with the inside of the vehicle and a second air outlet communicated with the outside of the vehicle. An evaporator is provided in the second heat exchange air duct, the second air inlet end includes a third air inlet communicated with the circulating air inlet inside the vehicle and a fourth air inlet communicated with the outside of the vehicle.

A method for controlling a system for air conditioning and/or heating, the system including a loop for the circulation of a refrigerant, with a first heat exchanger between the refrigerant and the inside air stream, a second heat exchanger between the refrigerant and the inside air stream or a heat transfer fluid, the method including selecting a mode for dehumidifying the inside air stream from a plurality of dehumidification modes, the selecting being implemented on the basis of maps, produced in advance, of at least humidity control parameters, selected from an actual temperature of the inside air stream upstream of the first heat exchanger, a temperature setpoint downstream of the second heat exchanger, a temperature setpoint downstream of the first exchanger, a flow rate of the inside air stream through the first exchanger, an ambient temperature of the air and/or a humidity of the air.

A vehicular air conditioning system for saving energy includes: a first indoor cooling heat exchanger for suctioning in and cooling the air within or outside a vehicle; an indoor air conditioning heat exchanger installed on the downstream cooling heat exchanger for regulating the temperature of the applicable air, a refrigeration cycle connected to the applicable indoor air conditioning heat exchanger, a heating element mounted in the vehicle, and a circuit for the machine coolant circulating between the applicable heating element and the applicable first indoor cooling heat exchanger, and in which the air flow path for air flowing into the indoor air conditioning heat exchanger is structured by merging a flow path passing through the first indoor cooling heat exchanger to a flow path not passing through the first indoor cooling heat exchanger, and is also configured to allow switching to either of the two flow paths.

Disclosed is an air conditioning system for a vehicle which includes a cold air passageway having a heat exchanger for cooling and a warm air passageway having a heat exchanger for heating inside an air-conditioning case to carry out cooling and heating and which controls to inhale indoor air inside the vehicle, pass the air through the heat exchanger for cooling and discharge the air outside the vehicle in a specific mode, thereby preventing frosting of the heat exchanger for cooling because supplying air of high temperature dehumidified inside the interior of the vehicle to the heat exchanger for cooling, and enhancing heating performance by rising refrigerant pressure and temperature in the refrigerant cycle without needing additional components.

The present invention relates to a heat exchanger that is disposed in an automotive air conditioner and provides cold air or hot air through heat exchange with air supplied by a fan and, more particularly, to an integrated module of an evaporator core and a heater core for an automotive air conditioner whereby the integrated module can simplify an automotive air conditioner by integrating an evaporator for cooling and a heater core for heating in the automotive air conditioner. According to the present invention, evaporator headers and heater headers are stacked and fixed in an integrated unit, so it is possible to simplify a facility. Accordingly, installation is easy and a volume can be reduced, as compared with the related art, whereby it is possible to reduce the weight of a vehicle.

In an outside air mode, outside air introduced through an outside air introducing opening is introduced into a ventilation duct. In an inside air mode, inside air introduced through an inside air introducing opening is introduced into the ventilation duct. In an inside and outside air mixture mode, the outside air introduced through the outside air introducing opening and the inside air introduced through the inside air introducing opening are both introduced into the ventilation duct. When the interior of the vehicle is heated in the inside air mode or in the inside and outside air mixture mode, the control unit executes control such that all of the air to be blown out through the blowing opening has passed through the heater core, and sets the temperature of the heating medium in the heating system in accordance with the temperature of the air passing through the evaporator.

An air conditioning apparatus for electric motor vehicles includes a sub-heat exchanger provided between a heat exchanger and an electric heater, and the sub-heat exchanger is moved towards the heat exchanger or the electric heater so that heat is conducted to the sub-heat exchanger depending on whether or not the heat exchanger and the electric heater are operated depending on a heating condition, thereby increasing a heat dissipation area through the sub-heat exchanger during heating and thus being capable of improving heating performance.

Proposed are an air conditioner having an integrated heat exchanger and an air conditioning system using the integrated heat exchanger. The integrated heat exchanger enables heat exchange between cooling water and conditioning-air, and generates heating air or cooling air such that cooling/heating efficiency is improved. Further, since the temperature of the cooling water circulating in the integrated heat exchanger is adjusted, there is no temperature adjustment door for adjusting the temperature of conditioning-air, so the number of parts is reduced. Further, since the integrated heat exchanger is applied, components are optimally arranged and the entire package is reduced in size.