WO2023112631A1 - Dispositif de climatisation de véhicule - Google Patents

Dispositif de climatisation de véhicule Download PDF

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Publication number
WO2023112631A1
WO2023112631A1 PCT/JP2022/043447 JP2022043447W WO2023112631A1 WO 2023112631 A1 WO2023112631 A1 WO 2023112631A1 JP 2022043447 W JP2022043447 W JP 2022043447W WO 2023112631 A1 WO2023112631 A1 WO 2023112631A1
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WO
WIPO (PCT)
Prior art keywords
air
individual
seat
vehicle
conditioning unit
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Application number
PCT/JP2022/043447
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English (en)
Japanese (ja)
Inventor
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
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Publication date
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Publication of WO2023112631A1 publication Critical patent/WO2023112631A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices

Definitions

  • 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.
  • 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.
  • 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
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 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. 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.
  • 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;
  • the vehicle air conditioner 100 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.
  • a vehicle air conditioner 100 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 .
  • 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.
  • 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.
  • 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.
  • 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.
  • the individual air conditioning unit 102 may include an indoor fan.
  • 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.
  • 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.
  • 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 .
  • the third damper 127 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.
  • 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.
  • 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.
  • 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 .
  • 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.
  • 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
  • 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.
  • 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.
  • 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.
  • the control unit 103 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.
  • the control unit 103 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 .
  • 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 .
  • 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.
  • 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 .
  • 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 .
  • 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.
  • 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.
  • 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 .
  • 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.
  • 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 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.
  • the heat management system 1 A specific configuration example of the heat management system 1 that performs heat management will be described below.
  • various vehicle parts of the electric vehicle including the vehicle air conditioner 100 are subjected to heat management.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 .
  • 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.
  • 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.
  • the valve devices V9, V10, V11 are check valves and stop backflow in the flow path.
  • 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.
  • 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.
  • 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.
  • 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.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

Le problème décrit par la présente invention est d'améliorer le confort des passagers et de réduire la perte d'énergie. La solution selon l'invention porte sur un dispositif de climatisation de véhicule 100 qui inclut : une unité de climatisation individuelle 102 qui climatise séparément et indépendamment une pluralité de sièges à l'intérieur d'un véhicule ; et une unité de commande 103 qui commande l'unité de climatisation individuelle. L'unité de climatisation individuelle comprend une unité d'échange de chaleur individuelle 122 qui est agencée au niveau d'un siège avant 200 et règle la température de l'air introduit dans l'unité de climatisation individuelle, un passage de soufflage d'air vers l'avant qui souffle de l'air qui a subi un réglage de température au niveau de l'unité d'échange de chaleur individuelle vers le siège avant, un passage de soufflage d'air vers l'arrière qui souffle de l'air qui a subi un réglage de température au niveau de l'unité d'échange de chaleur individuelle vers un siège arrière et une unité de sélection qui sélectionne au moins l'un parmi le passage de soufflage d'air vers l'avant et le passage de soufflage d'air vers l'arrière. L'unité de commande commande l'unité de sélection en fonction des états des sièges et commande la direction dans laquelle l'air provenant de l'unité de climatisation individuelle est soufflé.
PCT/JP2022/043447 2021-12-16 2022-11-25 Dispositif de climatisation de véhicule WO2023112631A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-204598 2021-12-16
JP2021204598A JP2023089845A (ja) 2021-12-16 2021-12-16 車両用空調装置

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WO2023112631A1 true WO2023112631A1 (fr) 2023-06-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004090853A (ja) * 2002-09-03 2004-03-25 Denso Corp 車両用空調装置
JP2014125165A (ja) * 2012-12-27 2014-07-07 Calsonic Kansei Corp 車両用空気調和システム
WO2014155805A1 (fr) * 2013-03-29 2014-10-02 カルソニックカンセイ株式会社 Système de conditionnement d'air pour véhicule
JP2019188892A (ja) * 2018-04-20 2019-10-31 マツダ株式会社 車両用空調制御装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004090853A (ja) * 2002-09-03 2004-03-25 Denso Corp 車両用空調装置
JP2014125165A (ja) * 2012-12-27 2014-07-07 Calsonic Kansei Corp 車両用空気調和システム
WO2014155805A1 (fr) * 2013-03-29 2014-10-02 カルソニックカンセイ株式会社 Système de conditionnement d'air pour véhicule
JP2019188892A (ja) * 2018-04-20 2019-10-31 マツダ株式会社 車両用空調制御装置

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