WO2023112631A1

WO2023112631A1 - Vehicular air-conditioning device

Info

Publication number: WO2023112631A1
Application number: PCT/JP2022/043447
Authority: WO
Inventors: 高洋都丸; 博佐藤; 靖明狩野; 健太森本; 千咲松本
Original assignee: サンデン株式会社
Priority date: 2021-12-16
Filing date: 2022-11-25
Publication date: 2023-06-22
Also published as: JP2023089845A

Abstract

[Problem] To improve passenger comfort and reduce energy loss. [Solution] Provided is a vehicular air-conditioning device 100 that includes: an individual air-conditioning unit 102 that separately and independently air conditions a plurality of seats inside a vehicle; and a control unit 103 that controls the individual air-conditioning unit. The individual air-conditioning unit comprises an individual heat exchange unit 122 that is arranged at a front seat 200 and adjusts the temperature of air introduced into the individual air-conditioning unit, a frontward air-blowing passage that blows air that has undergone temperature adjustment at the individual heat exchange unit toward the front seat, a backward air-blowing passage that blows air that has undergone temperature adjustment at the individual heat exchange unit toward a back seat, and a selection unit that selects at least one of the frontward air-blowing passage and the backward air-blowing passage. The control unit controls the selection unit in accordance with the states of the seats and controls the direction in which air from the individual air-conditioning unit is blown.

Description

vehicle air conditioner

The present invention relates to a vehicle air conditioner applied to a vehicle.

A vehicle air-conditioning system includes an indoor air-conditioning unit having a heat exchanger for exchanging heat between introduced air and a heat medium, and introduces air inside the vehicle (internal air) or air outside the vehicle (outside air) into the indoor air-conditioning unit. Air conditioning is performed by supplying temperature-controlled air to the vehicle interior. Specifically, air heated by a heat exchanger is blown out into the passenger compartment from outlets provided in the instrument panel, etc., on the front side of the vehicle. Air conditioning is performed by blowing air into the room. Various proposals have been made for such vehicle air conditioners in order to reduce heat loss and improve comfort in the vehicle interior.

For example, the vehicle air conditioner disclosed in Patent Document 1 includes a total heat exchanger that absorbs heat from the inside air flowing through the inside air discharge passage and releases heat to the outside air introduced from the outside air introduction port in the heat exchanger during heating. By absorbing heat from the inside air flowing through the inside air discharge path in the total heat exchanger, the heat of the inside air is used to increase the temperature of the outside air, thereby reducing the heat loss due to the introduction of outside air.

In addition, in the vehicle air conditioner disclosed in Patent Document 2, the air taken in through the seat from the floor side of the center of the vehicle in the vertical direction of the vehicle and from the front side of the vehicle with respect to the seat is transferred to the rear side of the vehicle with respect to the seat and from the front side of the vehicle. The temperature difference between the upper part of the vehicle interior and the lower part of the vehicle interior is suppressed by guiding toward the floor side or the upper side of the vehicle.

JP-A-10-16531 Japanese Patent No. 6950467

However, in the vehicle air conditioner of Patent Document 1, the air intake port for inside air is arranged near the feet of the occupant, and the warm air at the feet is taken in. Therefore, it is necessary to increase the intake amount of inside air in order to reduce heat loss. , occupant comfort may be compromised.
In the vehicle air conditioner of Patent Document 2, the air taken in from the front side of the vehicle through the seat is guided toward the rear side of the vehicle and toward the floor side or the upper side of the vehicle. , the air conditioning on the rear seat side is not sufficient, and it is not possible to provide comfortable air conditioning for all the occupants.
In addition, in any vehicle air conditioner, since one interior air conditioning unit air-conditions the entire vehicle interior, it is not possible to adjust the air volume and temperature according to the temperature to be adjusted. Therefore, not only is it impossible to cope with the case where each passenger of the vehicle has different thermal sensations, but also the unused seats of the vehicle are also air-conditioned, which may result in wasted energy. Furthermore, there is a distance between the position where the indoor air conditioning unit is installed and the passenger's seat, resulting in large energy loss.

The present invention has been made in view of such circumstances, and the objectives of the present invention are to improve passenger comfort and reduce energy loss.

One aspect of the present invention is a vehicle air conditioner including an individual air conditioning unit that independently and independently air-conditions a plurality of seats in a vehicle interior, and a control unit that controls the individual air conditioning unit, wherein the individual air conditioning The unit is arranged near the front seat, and has an individual heat exchange section that adjusts the temperature of the air introduced into the individual air conditioning unit, and blows out the air temperature-controlled by the individual heat exchange section to the front seat. a front air passage and a rear air passage for blowing to a rear seat; and a selection unit for selecting at least one of the front air passage and the rear air passage, wherein the control unit controls the state of each seat. A vehicle air conditioner that controls the selection unit in response to and controls the blowing direction of air from the individual air conditioning unit.

According to the present invention, it is possible to improve passenger comfort and reduce energy loss.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows schematic structure of the vehicle air conditioner which concerns on embodiment of this invention. It is a figure which shows the schematic structure of the individual air conditioning unit of the vehicle air conditioner which concerns on embodiment of this invention. 1 is a diagram showing a schematic configuration of an individual air conditioning unit in a vehicle air conditioner according to an embodiment of the present invention, (A) showing a side view of a seat provided with an individual air conditioning unit, and (B) showing an individual air conditioning unit. 1 shows a perspective view of a seat installed; FIG. FIG. 5 is a reference diagram showing an example of air blowing directions according to seating patterns of occupants in the vehicle air conditioner according to the embodiment of the present invention. FIG. 5 is a reference diagram showing an example of air blowing directions according to seating patterns of occupants in the vehicle air conditioner according to the embodiment of the present invention. FIG. 5 is a reference diagram showing an example of air blowing directions according to seating patterns of occupants in the vehicle air conditioner according to the embodiment of the present invention. FIG. 5 is a reference diagram showing an example of air blowing directions according to seating patterns of occupants in the vehicle air conditioner according to the embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing a configuration example of a heat management system whose heat management target is a vehicle air conditioner according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same reference numerals denote portions having the same functions, and duplication of description in each drawing will be omitted as appropriate.

The vehicle air conditioner 100 according to the present embodiment is subject to heat management by the heat management system 1, which will be described later, and air-conditions the vehicle interior using the heat dissipation and heat absorption of the heat pump by the heat management system 1.

As shown in FIG. 1, a vehicle air conditioner 100 according to the present embodiment includes a main air conditioning unit 101 that supplies wind (air) taken in from outside the vehicle interior into the vehicle interior to air-condition the vehicle interior, and a plurality of air conditioners. It has an individual air conditioning unit 102 that air-conditions the seat or each passenger independently, and a control section 103 that controls the main air conditioning unit 101 and the individual air conditioning unit 102 .

The main air-conditioning unit 101 includes a cooler core 44 and a heater core 45 as heat exchange units for controlling the temperature of the wind (air) taken in from inside and outside the vehicle through the air inlet 111, and the cooler core 44 or the heater core 45 for temperature control. and a blowout port 112 for blowing out the cooled air from the front of the vehicle interior. A suction switching damper (not shown) is provided at the suction port 111, and the suction port 111 is switched appropriately between the inside air (internal air circulation) that is the air inside the vehicle and the outside air (outside air introduction) that is the air outside the vehicle. from the main air conditioning unit 101 . Further, an indoor air blower (not shown) is provided for blowing the introduced inside air and outside air to the cooler core 44 and the heater core 45 .

The individual air conditioning unit 102 is arranged near the front seat 200 in the vehicle (under the seat 200 in the example of FIG. 1). More specifically, individual air-conditioning units are provided on the front seats 200 including two seats, a driver's seat and a passenger's seat.

As shown in FIG. 2, the individual air conditioning unit 102 includes a suction port 121 that takes in air from the vehicle interior, an individual heat exchange section 122 that controls the temperature of the air introduced into the individual air conditioning unit 102 via the suction port 121, It has a front outlet 123 that opens to the front side of the cabin, a rear outlet 124 that opens to the rear side of the cabin, and an upper outlet 125 that opens to the upper side of the cabin.

A first damper 126A is provided at the front outlet 123, and a second damper 126B is provided at the rear outlet 124, respectively. A direction is selected. By opening the front air outlet 123 by the first damper 126A, a front air passage for blowing the air temperature-controlled by the individual heat exchange section 122 to the front seat 200 is formed, and the second damper 126B blows the air to the rear. By opening the outlet 124, a rear blowing air passage is formed through which the air temperature-controlled by the individual heat exchange section 122 is blown out to the rear seat 300. As shown in FIG.

Note that the individual air conditioning unit 102 may include an indoor fan. In addition, in a state where the first damper 126A is opened to form a front blowing air passage, the opening of the first damper 126A is controlled as necessary to adjust the amount of air blown out from the front blowing port 123. can do. Similarly, in a state in which the second damper 126B is opened to form a rear blowing air passage, the opening of the second damper 126B is controlled as necessary to adjust the amount of air blown out from the rear blowing port 124. can be adjusted.

Further, the opening of the first damper 126A and the second damper 126B is adjusted while forming both the front blowing air passage and the rear blowing air passage by opening the first damper 126A and the second damper 126B, respectively. It is possible to adjust the ratio of ventilation to the air outlet 123 and the rear air outlet 124 .

The upper air outlet 125 is provided with a third damper 127 that opens and closes the upper air outlet 125 . One end of a duct 128 built in the seat back of the seat is connected to the upper air outlet 125 . By opening the third damper 127 , the air blown from the upper air outlet 125 is blown into the passenger compartment through the duct 128 . That is, by opening the third damper 127, an upward blowing air passage is formed that blows air upward from the seat of the seat.

As shown in FIG. 3, the other end of the duct 128 has a front outlet 128A that opens forward in the passenger compartment and a rear outlet 128B that opens rearward in the passenger compartment. The introduced air can be blown forward or rearward in the vehicle interior, or both. By providing a fourth damper (not shown) at the other end of the duct 128, it is possible to switch the blowing direction of the front blower outlet 128A or the rear blower outlet 128B.

In this way, the first damper 126A, the second damper 126B, the third damper 127, and the fourth damper switch the opening and closing of the front blower outlet 123, the rear blower outlet 124, and the upper blower outlet 125, respectively, thereby controlling the forward blowing air. It functions as a selector that selects the channel, the rear outlet channel, and the upper outlet channel.

The control unit 103 controls the first damper 126A, the second damper 126B, the third damper 127, and the fourth damper according to the state of each seat, and controls the blowing direction of the air from the individual air conditioning unit 102. Further, the control section 103 controls the air blowing from the main air conditioning unit 101 and its direction. The control unit 103 can be implemented by a control unit (not shown) that controls a heat management system, which will be described later, or may be provided separately as the control unit 103 of the vehicle air conditioner 100 . In addition, when the vehicle air conditioner 100 is mounted on the vehicle, the control unit 103 includes a vehicle controller that controls the entire vehicle including traveling, and an in-vehicle network such as CAN (Controller Area Network) and LIN (Local Interconnect Network). are connected so as to be able to communicate with each other, and transmit and receive information. The control unit 103 and the vehicle controller include, for example, processors such as CPU (Central Processing Unit) or MPU (Micro Processing Unit), electric circuits, RAM (Random Access Memory), ROM (Read Only Memory) and other storage elements. computer can be applied.

More specifically, the control unit 103 controls the first damper 126A, the second damper 126B, the third damper 127, and the fourth damper as the selection unit of the individual air conditioning unit 102 so that the air from the individual air conditioning unit At least, a forward mode that blows temperature-controlled air to the front side, which is the front seat 200, and a rear mode that blows temperature-controlled air to the rear seat 300. can be controlled by switching

Note that the control unit 103 can control to blow air from either one or both of the front air outlet 123 and the front air outlet 128A in the front mode, and the rear air outlet 124 and the rear air outlet 128B in the rear mode. can be controlled to blow air from either one or both.
Moreover, the control unit 103 may further have a bi-directional mode for blowing temperature-controlled air to both the front seat 200 and the rear seat 300 .

The control unit 103 can independently control the blowing direction according to whether or not an occupant is seated in each seat, or according to the target temperature set for each seat.

　Hereinafter, an example of control of the blowing direction according to the seating pattern of the occupant will be described with reference to Figs. Since the individual air conditioning unit 102 is provided below the seat, the individual air conditioning unit 102 is not shown in FIGS. 4 to 7 .

FIG. 4 shows a state in which one person appears in the vehicle and a passenger is seated only in the driver's seat 201. FIG. In this case, the control unit 103, for example, drives only the individual air conditioning unit 102 provided below the driver's seat 201 in the forward mode, and distributes the air temperature-controlled by the individual heat exchange unit 122 to the front air outlet 123 and forward air. It is controlled to blow air from one or both of the air outlets 128A.

FIG. 5 shows a state in which two people have appeared in the vehicle.
FIG. 5A shows a state in which passengers are seated in the driver's seat 201 and the passenger's seat 202. FIG. In this case, the control unit 103, for example, drives only the individual air conditioning units 102 provided below the driver's seat 201 and the front passenger seat 202 in the forward mode, and blows the air temperature-controlled by the individual heat exchange unit 122 forward. It is controlled to blow air from either one or both of the outlet 123 and the front outlet 128A.

FIG. 5(B) shows the driver's seat 201 and an occupant seated in the seat 301 behind the driver's seat 201 . In this case, for example, the control unit 103 drives the main air conditioning unit 101 to blow air from the front of the vehicle to the driver's seat 201, and drives the individual air conditioning unit 102 provided below the driver's seat 201 in the rear mode, Control is performed so that the air temperature-controlled by the individual heat exchange section 122 is blown from one or both of the rear outlet 124 and the rear outlet 128B.

FIG. 5(C) shows a state in which an occupant is seated on the seat 302 behind the driver's seat 201 and the passenger's seat 202 . In this case, for example, the control unit 103 drives the individual air conditioning unit 102 provided below the driver's seat 201 in the forward mode, and the air whose temperature is controlled by the individual heat exchange unit 122 is sent to the front air outlet 123 and the front air outlet. It is controlled to blow air from either one or both of the outlets 128A. In addition, the individual air conditioning unit 102 provided below the passenger seat 202 is driven in the rear mode, and the air temperature-controlled by the individual heat exchange section 122 is supplied from one or both of the rear outlet 124 and the rear outlet 128B. Control to blow air.

FIG. 6 shows a state in which three people have appeared in the vehicle.
FIG. 6A shows a state in which passengers are seated in a driver's seat 201 , a passenger's seat 202 , and a seat 301 behind the driver's seat 201 . In this case, the control unit 103 drives, for example, the main air conditioning unit 101 and the individual air conditioning units 102 provided below the driver's seat 201 and the passenger's seat 202 .

Specifically, the control unit 103 blows air from the main air conditioning unit 101 toward the driver's seat 201, drives the individual air conditioning unit 102 below the driver's seat 201 in the rear mode, and controls the temperature of the air by the individual heat exchange unit 122. is blown from one or both of the rear outlet 124 and the rear outlet 128B. Also, the individual air conditioning unit 102 below the front passenger seat 202 is driven in the forward mode, and the air whose temperature is controlled by the individual heat exchange section 122 is blown from one or both of the front outlet 123 and the front outlet 128A. to control.

FIG. 6(B) shows the driver's seat 201, the passenger's seat 202, and the passenger seated in the seat 302 behind the passenger's seat 202. FIG. In this case, for example, the control unit 103 drives the main air conditioning unit 101 to blow air from the front of the vehicle to the passenger seat 202, and drives the individual air conditioning unit 102 provided below the driver's seat 201 in the forward mode. , the air whose temperature is controlled by the individual heat exchange section 122 is controlled to be blown from one or both of the front outlet 123 and the front outlet 128A. Also, the individual air conditioning unit 102 below the front passenger seat 202 is driven in the rear mode, and the air temperature-controlled by the individual heat exchange section 122 is blown from either or both of the rear outlet 124 and the rear outlet 128B. Control.

FIG. 6(C) shows a state in which passengers are seated in the driver's seat 201 and the

rear seats

301 and 302 . In this case, for example, the control unit 103 drives the main air conditioning unit 101 to blow air from the front of the vehicle to the driver's seat 201, and also controls the individual air conditioning units 102 provided below the driver's seat 201 and the front passenger's seat 202. mode to blow the air temperature-controlled by the individual heat exchange section 122 from either one or both of the rear blower outlet 124 and the rear blower outlet 128B.

FIG. 7 shows a state in which four people have appeared in the vehicle.
In this case, for example, the control unit 103 drives the main air conditioning unit 101 to blow air from the front of the vehicle to the driver's seat 201 and the passenger's seat 202, and the individual air-conditioning unit 102 provided below the driver's seat 201 and the passenger's seat 202. are driven in the rear mode, and the air temperature-controlled by the individual heat exchange section 122 is controlled to be blown from either one or both of the rear blower outlet 124 and the rear blower outlet 128B.

The vehicle air conditioner 100 according to the present embodiment is managed by the heat management system 1 so that the temperature of the main air conditioning unit 101 and the individual air conditioning units 102 can be controlled within a desired temperature range. can be done. A specific configuration example of the heat management system 1 that performs heat management will be described below.

In the heat management system 1 of FIG. 8, various vehicle parts of the electric vehicle including the vehicle air conditioner 100 are subjected to heat management. Specifically, in addition to the main air conditioning unit 101 and the individual air conditioning unit 102 of the vehicle air conditioner 100, for example, the battery M1, the inverter M2, and the motor M3 are illustrated as thermal management targets.
Temperature control

heat exchange units

41, 42, 43, a cooler core 44, a heater core 45, and individual heat exchange units 122 are attached to these heat management objects so as to be able to exchange heat with each heat management object.

The heat management system 1 includes a refrigerant circuit 10 , a high temperature side heat medium circuit 20 and a low temperature side heat medium circuit 30 .
The refrigerant circuit 10 is a circuit in which refrigerant circulates, and shows a closed circuit in which a compressor 11, a condenser 12, an expansion valve 13, and an evaporator 14 are sequentially connected by refrigerant pipes. , but not limited to this, for example, a circuit that includes an accumulator upstream of the compressor 11 may be used.

The high temperature side heat medium circuit 20 is integrated with the condenser 12 in the refrigerant circuit 10 and includes a high temperature side heat exchange section 21 that performs heat exchange between the heat medium and the refrigerant. While the medium is passing through the high-temperature side heat exchange section 21 , the heat of the refrigerant in the condenser 12 in the refrigerant circuit 10 heats the medium to a high temperature and circulates.

The low temperature side heat medium circuit 30 is integrated with the evaporator 14 in the refrigerant circuit 10 and includes a low temperature side heat exchange section 31 that performs heat exchange between the heat medium and the refrigerant. While the medium is passing through the low-temperature side heat exchange section 31 , the medium is cooled to a low temperature due to the heat absorption of the refrigerant in the evaporator 14 in the refrigerant circuit 10 and circulates.

As the heat medium for the high-temperature side heat medium circuit 20 and the low-temperature side heat medium circuit 30, water containing no additives, water mixed with additives such as antifreeze agents and antiseptic agents, oil, and the like are used. A liquid heat medium or the like can be adopted.

Heat

medium mixers

51, 52, 53, 55, and 54 are connected upstream of the temperature control heat exchange section 41, the cooler core 44, the heater core 45, and the individual heat exchange section 122, respectively. The high temperature heat medium in the side heat medium circuit 20 and the low temperature heat medium in the low temperature side heat medium circuit 30 are mixed in the heat

medium mixing units

51, 52, 53, 55, and 54 at a mixing ratio corresponding to the target temperature. The heat medium whose temperature is adjusted in is supplied to each of the temperature-adjusting heat exchange portions 41 , the cooler core 44 , the heater core 45 and the individual heat exchange portions 122 .

The heat medium that has passed through the temperature control heat exchange section 41, the cooler core 44, the heater core 45, and the individual heat exchange section 122 is branched at the branch portion D, returns to the high temperature side heat medium circuit 20 from the first connection portion C1, 2 returns to the low temperature side heat medium circuit 30 from the connection portion C2. The split flow ratio at that time is automatically returned according to the mixing ratio set in the heat

medium mixing units

51, 52, 53, 55, and 54 without providing a distribution valve device or the like.

As a result, in the heat management system 1, heat radiation and heat absorption of the heat pump by the refrigerant circuit 10 can be used to control the temperature of each heat management target. In particular, the high-temperature heat medium in the high-temperature heat medium circuit 20 and the low-temperature heat medium in the low-temperature heat medium circuit 30 are mixed at a desired ratio, and the heat exchange units 41 for temperature adjustment, the cooler core 44, the heater core 45, and the individual heat exchange units are provided. Since it is supplied to the unit 122, it is possible to perform temperature control according to the target temperature of each thermal management target in an arbitrary temperature range.

Also, the temperature control

heat exchange units

42 and 43 for which the target temperature is not set are connected to an air cooling heat medium circuit 60 having an air heat exchange unit (radiator) 61 and a third pump 62 . As a configuration example of the heat management system 1, an electric heater 2 may be additionally provided.

The high-temperature-side heat medium circuit 20, the low-temperature-side heat medium circuit 30, and the air-cooled heat medium circuit 60 are each connected to predetermined flow paths via valve devices V1 to V12. Here, the valve devices V1 and V2 are three-way valves, and three-way flow paths can be selectively switched, and the valve devices V3, V4, V5, V6, V7, and V8 are two-way valves. It is possible to open and close the flow path. Further, the valve devices V9, V10, V11 are check valves and stop backflow in the flow path.

As described above, according to this embodiment, in addition to the main air conditioning unit 101, the vehicle air conditioning system 100 is provided with the individual air conditioning units 102 that individually and independently air condition the plurality of seats in the vehicle interior. ing. Each individual air conditioning unit 102 includes a heat exchange section that circulates a heat medium whose temperature is adjusted according to a target temperature different from that of the main air conditioning unit 101 or other individual air conditioning units 102 . The air introduced into each individual air conditioning unit 102 is temperature-controlled according to the target temperature, and is blown out through the front blowing air passage or the rear blowing air passage.

As described above, according to the vehicle air conditioner 100 according to the present embodiment, the individual air conditioning unit 102 is provided near the seat 200, so the distance between the temperature-controlled air outlet and the occupant is short. Therefore, energy loss can be reduced. In addition, for example, air conditioning can be performed for each seat, such as only the seat where the passenger is seated, only the seat where the temperature is set, etc., so temperature-controlled air will not be blown to the seat that does not require air conditioning. Energy loss can be reduced. In addition, even when the target temperature differs from seat to seat, desired air conditioning can be performed, so air conditioning can be performed according to the thermal sensation of each occupant, and the comfort of the occupant can be improved.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and design changes and the like are possible without departing from the gist of the present invention. Even if there is, it is included in the present invention.

1: heat management system, 10: refrigerant circuit, 11: compressor, 12: condenser, 13: expansion valve, 14: evaporator, 20: high temperature side heat medium circuit, 30: low temperature side heat medium circuit, 41, 42 , 43: temperature control heat exchange unit, 44: cooler core, 45: heater core, 51, 52, 53, 55, 54: heat medium mixing unit, 60: air cooling heat medium circuit, 61: air heat exchange unit (radiator) , 100: vehicle air conditioner, 101: main air conditioning unit, 102: individual air conditioning unit, 103: control unit, 111: intake port, 112: outlet port, 121: intake port, 122: individual heat exchange unit, 123: front Air outlet 124: Rear outlet 125: Upper outlet 126A: First damper 126B: Second damper 127: Third damper 128: Duct 128A: Front outlet 128B:

Rear outlet

200 , 300, 301, 302: seat, 201: driver's seat, 202: passenger's seat

Claims

A vehicle air conditioner including an individual air conditioning unit that independently and independently air-conditions a plurality of seats in a vehicle interior, and a control unit that controls the individual air conditioning unit,
The individual air conditioning unit is arranged near the front seat,
an individual heat exchange unit that controls the temperature of the air introduced into the individual air conditioning unit;
a front blowing air passage for blowing the air temperature-controlled by the individual heat exchange units to the front seats and a rear blowing air passage for blowing the air to the rear seats;
a selection unit that selects at least one of the front blowing air passage and the rear blowing air passage,
The vehicle air conditioner, wherein the control unit controls the selection unit according to the state of each seat to control the blowing direction of air from the individual air conditioning unit.
The vehicle air conditioner according to claim 1, wherein the individual air conditioning units are provided near the driver's seat and near the passenger's seat, respectively.
3. The vehicle air conditioner according to claim 1, wherein said individual air conditioning unit further comprises an upward blowing air passage for blowing out the air temperature-controlled by said individual heat exchange section above said seat. .
The vehicle air conditioner according to claim 3, wherein the upward blowing air passage is provided in one or both of the back and pillars of the seat.
A main air conditioning unit having a main heat exchange section for adjusting the temperature of air introduced from outside and outside the vehicle interior, and an outlet for blowing out the air temperature-controlled by the main heat exchange section from the front of the vehicle interior,
5. The vehicle air conditioning system according to claim 1, wherein said control unit controls said main air conditioning unit and said individual air conditioning unit, and controls an air blowing direction according to the state of each seat. Device.
5. The controller according to any one of claims 1 to 4, wherein the controller controls the air blowing direction from the individual air conditioning unit according to the target temperature of each seat or whether or not an occupant is seated on each seat. 10. A vehicle air conditioner according to claim 1.