WO-2026094851-A1 - VEHICLE AIR CONDITIONING SYSTEM

Abstract

This vehicle air conditioning system comprises a cooling module to which a heat exchange unit is attached and integrated, and an air conditioning unit that performs heat exchange with air in the heat exchange unit in order to cool and heat the inside of a vehicle cabin. The air conditioning unit has an opening, and the heat exchange unit is inserted into the air conditioning unit from the opening.

Inventors

• MARUYAMA, KOICHI
• OGIHARA, SATOSHI
• MATSUDAIRA, NORIMITSU
• HOSHINO, Ryuusuke

Assignees

• 株式会社アイシン
• ハイリマレリジャパン株式会社

Dates

Publication Date

20260507

Application Date

20251027

Priority Date

20241031

Claims (8)

1. A cooling module with an integrated heat exchange section, The vehicle interior is equipped with an air conditioning unit that performs heat exchange with air in the heat exchange section in order to provide heating and cooling to the vehicle interior, The air conditioning unit has an opening, The heat exchange section is a vehicle air conditioning system inserted into the air conditioning unit through the opening.
2. The vehicle air conditioning system according to claim 1, wherein the heat exchange section comprises a cooler core and a heater core.
3. The vehicle air conditioning system according to claim 2, wherein the opening of the air conditioning unit comprises a first opening into which the cooler core is inserted, and a second opening formed separately from the first opening into which the heater core is inserted.
4. The vehicle air conditioning system according to any one of claims 1 to 3, wherein the opening is positioned downstream in the airflow direction from the blower that takes in air from the outside.
5. The vehicle air conditioning system according to claim 1, wherein either the cooling module or the air conditioning unit is arranged to be movable relative to the other.
6. A vibration propagation suppression member is arranged around the periphery of the aforementioned opening. The vehicle air conditioning system according to claim 5, wherein both the cooling module and the air conditioning unit are in contact with the vibration propagation suppression member.
7. The heat exchange section consists of a cooler core and a heater core. The opening of the air conditioning unit has a first opening into which the cooler core is inserted, and a second opening formed separately from the first opening into which the heater core is inserted. The vehicle air conditioning system according to claim 6, wherein the vibration propagation suppression members are arranged on the periphery of the first opening and the periphery of the second opening, respectively.
8. Both the cooling module and the air conditioning unit are supported by the vehicle body. The vehicle air conditioning system according to any one of claims 5 to 7, wherein either the cooling module or the air conditioning unit is supported so as to be movable relative to the vehicle body.

Description

Vehicle air conditioning system This disclosure relates to a vehicle air conditioning system. Conventionally, vehicle air conditioning systems have been used to provide heating and cooling for the vehicle interior. Examples of technologies related to such vehicle air conditioning systems include those described in Patent Documents 1 and 2, cited below. The vehicle air conditioning system described in Patent Document 1 (referred to as a vehicle air conditioning device in Patent Document 1) comprises a refrigeration cycle device, a high-temperature heat transfer medium circuit, and an air conditioning unit (referred to as an indoor air conditioning unit in Patent Document 1). The refrigeration cycle device includes components such as a cooler core (referred to as an indoor evaporator in Patent Document 1), a high-temperature water-refrigerant heat exchanger, a compressor, an expansion valve, and an evaporator, with each component connected by piping. Refrigerant flows through the piping of the refrigeration cycle device. The cooler core is housed inside the air conditioning unit, while the other components are located outside the unit. The high-temperature heat transfer medium circuit includes components such as a heater core, a high-temperature water-refrigerant heat exchanger, a pump, valves, and a radiator, with each component connected by piping. Coolant flows through the piping of the high-temperature heat transfer medium circuit. The heater core is housed inside the air conditioning unit, while the other components are located outside the unit. The vehicle air conditioning system described in Patent Document 2 (referred to as a vehicle air conditioning device in Patent Document 2) is configured to be switchable between cooling mode and heating mode using a coolant that has undergone heat exchange with a refrigerant flowing through the condenser and evaporator of a heat pump cycle. This vehicle air conditioning system includes a cooler core that exchanges heat between the coolant cooled via the evaporator and air, and a heater core that exchanges heat between the coolant heated via the condenser and air. The cooler core and heater core are housed inside an air conditioning unit (referred to as an interior air conditioning unit in Patent Document 2), while the condenser and evaporator are located outside the air conditioning unit. Piping is connected between the cooler core and the evaporator, and between the heater core and the condenser, with the coolant flowing through these pipes. Piping is also connected between the condenser and the evaporator, with the refrigerant flowing through these pipes. This is a circuit diagram of the vehicle air conditioning system according to this embodiment.This is a perspective view showing the state of the cooler core and heater core of the coolant manifold before they are inserted into the HVAC unit.This is a perspective view showing the cooler core and heater core of the coolant manifold inserted into the HVAC unit.This is a side view of the HVAC unit.This is a cross-sectional view taken along the line V-V in Figure 3, and a partially enlarged cross-sectional view of the coolant manifold where it is fixed to the vehicle body. The embodiments of the vehicle air conditioning system described below will be explained in detail with reference to the drawings. The embodiments described below are illustrative examples for explaining the vehicle air conditioning system and do not limit the vehicle air conditioning system described here to these embodiments only. Therefore, the vehicle air conditioning system described here can be implemented in various forms without departing from its essence. [Circuit configuration of the vehicle's air conditioning system] Figure 1 shows the circuit configuration of the vehicle air conditioning system 1. The vehicle air conditioning system 1 is mounted on a vehicle and, as shown in Figure 1, comprises a refrigerant module 2, a coolant module 3, and an HVAC unit 6 (Heating, Ventilation, and Air Conditioning unit, an example of an air conditioning unit). The refrigerant module 2 is provided with a refrigerant flow path 2A, and the coolant module 3 is provided with a coolant flow path 3A. [Refrigerant module configuration] The refrigerant module 2 is a general term for the parts of the vehicle air conditioning system 1 through which the refrigerant flows. The refrigerant module 2 consists of an accumulator 10, a compressor 11, a water-cooled condenser 12, an expansion valve 13, a chiller 14, and a refrigerant flow path 2A connecting these components. The refrigerant flow path 2A circulates the refrigerant between the water-cooled condenser 12 and the chiller 14. The refrigerant module 2 is configured to allow the refrigerant to flow between the accumulator 10, the compressor 11, the water-cooled condenser 12, the expansion valve 13, and the chiller 14 via the refrigerant flow path 2A. Refrigerants such as hydrofluorocarbons (HFCs) and hydroflu