A vehicle air conditioner includes a casing, a heater core that heats an air flow by heat exchange between the air flow and a heat medium, an electric heater that heats an air flow by an electric power, and a determiner that determines whether a temperature of the heat medium is equal to or lower than a predetermined temperature. When the determiner determines that the temperature of the heat medium is equal to or lower than the predetermined temperature, an air flow introduced into a casing is heated by the electric heater and flows toward the vehicle interior without passing through the heater core.

A blower includes a fan that rotates about an axis center in an air conditioning case, and a casing that guides air blown from the fan. The casing has a peripheral wall that is located radially outward of the fan with the axis center as a center. The peripheral wall has first and second scroll inner wall surfaces that guide different kinds of air blown from the fan to different outlets. No half-lines starting from the axis center passes through both of the first and second scroll inner wall surfaces.

An air conditioning case includes a first partition wall that receives a condensed water generated by an evaporator, and the first partition wall is disposed above an overlapped portion of a heater core and between the evaporator and the heater core. Therefore, the first partition wall can prevent the condensed water dropped from the evaporator from being applied directly to the heater core. As a result, in a structure in which at least a portion of the heater core overlaps with the evaporator from below, the condensed water of the evaporator is less likely to be applied to the heater core.

A vehicular air conditioning device includes a cabin air conditioning unit having a cabin side ventilator and a temperature adjusting unit, and a seat air conditioning unit having a seat side ventilator a ventilation duct that guides at least a portion of the air temperature adjusted by the temperature adjusting unit toward the seat side ventilator. A plurality of seat side blowout portions in a seat. The plurality of seat side blowout portions include a contact side blowout portion which is formed on a surface of a portion of the seat which come into contact with a passenger when the passenger sits in the seat, and a below knee side blowout portion which is formed on a portion of the seat that faces a below knee region of the passenger.

A vehicle air conditioning system performing individual air conditioning in four zones for left and right spaces of front and rear seats includes a front seat heating, ventilation, and air conditioner (HVAC) separately supplying air having passed through left and right flow paths of a front seat flow path into the left and right spaces of the front seat to perform two-zone individual air conditioning for the front seat. A flow guide is provided in an upstream side space of an evaporator in an internal space of the air conditioning casing of the front seat HVAC to divide the upstream side space of the evaporator to have a left flow path and a right flow path. The flow guide and a side portion of the air conditioning casing opposite to the flow guide have a curved stepped portion in cross-section.

An air conditioning module, which can perform cooling and heating through a single module, which is capable of being compact-sized, which can prevent problems caused by condensate water because the condensate water can be easily discharged out, and which can control all of two doors for heating and cooling by actuating means.

A blower assembly for a vehicle air conditioning unit includes a first air flow duct having a first blower and a second air flow duct having a second blower. A fresh-air inlet opening is arranged in the first air flow duct and a recirculated-air inlet opening is arranged in the second air flow duct. A distribution chamber is downstream of the first and second air flow ducts and an air cooling unit and a bypass duct bypassing the air cooling unit are downstream of the distribution chamber. A bypass flap is in the distribution chamber for directing at least a part of the air flow in the first air flow duct to the air cooling unit and/or to the bypass duct with substantially all of the air flow in the first air flow duct directed into the bypass duct in one position of the bypass flap.

An air conditioning system for a vehicle may include a cooling duct provided with a cooling duct inlet at a first end of the cooling duct, and a cooling duct indoor outlet and a cooling duct outdoor outlet at a second end of the cooling duct, a heating duct provided with a heating duct inlet at a first end of the heating duct, and a heating duct indoor outlet and a heating duct outdoor outlet at a second end of the heating duct, and including a condenser disposed in the heating duct, an extension duct extending from both the cooling duct indoor outlet and the heating duct indoor outlet, and channeling air supplied from both the cooling duct indoor outlet and the heating duct indoor outlet to a passenger compartment, and a passage control door provided at an indoor outlet end portion of a partition wall.

An air conditioning apparatus for a vehicle may include a cooling duct provided with a cooling duct inlet at a first end of the cooling duct, and a cooling duct indoor outlet and a cooling duct outdoor outlet at a second end cooling duct, and including an evaporation core disposed in the cooling duct, a heating duct provided with a heating duct inlet at a first end of the heating duct, and a heating duct indoor outlet and a heating duct outdoor outlet at a second end of the heating duct, and including a condenser disposed in the heating duct, and an overlapping duct provided by overlapping the cooling duct with the heating duct, the evaporation core and the condenser being disposed respectively at an upstream and a downstream of an air flow, and the evaporation core and the condenser may be connected with each other on one refrigerant passage.

An HVAC system for a vehicle includes a housing, a front HVAC unit housed in the housing and having a front blower, a first airflow path, and a front air mix door, a rear HVAC unit housed in the housing and having a rear blower, a second airflow path, and a rear air mix door. The HVAC system further includes an evaporator having a first portion disposed in the first airflow path and a second portion disposed in the second airflow path, and a heating core having a first portion disposed in the first airflow path and a second portion disposed in the second airflow path. An airflow directional door is disposed between the first airflow path and the second airflow path to regulate airflow from the rear blower to the first airflow path.