WO2023171503A1 - Dispositif de climatisation de véhicule - Google Patents

Dispositif de climatisation de véhicule Download PDF

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Publication number
WO2023171503A1
WO2023171503A1 PCT/JP2023/007641 JP2023007641W WO2023171503A1 WO 2023171503 A1 WO2023171503 A1 WO 2023171503A1 JP 2023007641 W JP2023007641 W JP 2023007641W WO 2023171503 A1 WO2023171503 A1 WO 2023171503A1
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WO
WIPO (PCT)
Prior art keywords
air
vehicle
row seat
outlet
heater
Prior art date
Application number
PCT/JP2023/007641
Other languages
English (en)
Japanese (ja)
Inventor
栄二 末廣
英之 金本
由架 木下
豊 竹信
啓悟 嘉本
忠則 坂倉
Original Assignee
株式会社日本クライメイトシステムズ
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Filing date
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Application filed by 株式会社日本クライメイトシステムズ filed Critical 株式会社日本クライメイトシステムズ
Publication of WO2023171503A1 publication Critical patent/WO2023171503A1/fr

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Classifications

    • 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 disclosure relates to a vehicle air conditioner installed in an automobile or the like.
  • the vehicle air conditioner includes an air conditioning casing that houses a cooler and a heater, and is configured to adjust the temperature of the air conditioning air introduced into the air conditioning casing using the cooler and heater.
  • the temperature-adjusted air is supplied to various parts of the passenger compartment, such as the upper body and feet of the occupant, by a blowout direction switching damper provided in the air conditioning casing.
  • Patent Document 1 Inside the air conditioning casing of Patent Document 1, there is a right hot air guide section for guiding hot air flowing out from the downstream end of the hot air passage to the rear seat passage, and a cold air guiding part for guiding hot air flowing out from the downstream end of the lower cold air passage.
  • a baffle plate is provided with a central cold air guide section for guiding the air to the heat passage.
  • a baffle is arranged at a joining region of hot air and cold air.
  • the baffle is provided with a hot air guide section that guides the hot air from the hot air passage toward the defrost outlet, and a cold air guide section that guides the cold air from the bypass passage toward the vent outlet.
  • the air conditioning casing of Patent Document 3 is provided with a face-foot damper that opens and closes the face opening and the foot opening.
  • a hot air guide section that guides hot air from the heater toward the face opening in bilevel mode
  • a cold air guide section that guides cold air from the bypass passage toward the foot opening.
  • a guide member is provided.
  • the air conditioner for the rear seats needs to be installed in the passenger compartment behind the instrument panel, so a large space like the inside of the instrument panel where the air conditioner for the front seats is installed must be used for the air conditioner for the rear seats. It is difficult to secure for the equipment.
  • the air conditioning casing of the rear seat air conditioning system needs to be downsized, and inside the air conditioning casing, which has a limited size, it is necessary to create a wide air mix space that can mix cold air and warm air as desired. Furthermore, it is difficult to supply conditioned air at a desired temperature to the upper bodies and feet of the occupants in the second row of seats and the occupants in the third row of seats.
  • the present disclosure has been made in view of this point, and its purpose is to reduce the size of the air conditioning casing in which the cooler and heater are housed, while also improving the safety of the occupants in the second and third row seats.
  • the purpose is to improve comfort.
  • a first aspect of the present disclosure provides a second row of seats arranged behind a driver's seat and a passenger seat in a vehicle, and a third row of seats arranged behind the second row of seats in a vehicle.
  • the present invention can be applied to a vehicle air conditioner installed in the interior of an automobile equipped with an eye seat.
  • the vehicle air conditioner includes a cooler that cools air for conditioning to generate cold air, a heater that heats the air for air conditioning to generate warm air, and houses the cooler and the heater.
  • an air conditioning casing in which an air mix space for mixing cold air and the warm air is formed; and an air mix damper that is housed in the air conditioning casing and changes a mixing ratio of the cold air and the warm air in the air mix space.
  • a vent outlet for the second row seat is formed in the upper part of the vehicle rear side of the air conditioning casing, from which the conditioned air to be supplied to the upper body of the occupant in the second row seat is blown out.
  • a vent outlet for the third row seat is formed in the lower part of the rear side from which the conditioned air supplied to the upper body of the occupant in the third row seat is blown out.
  • the vehicle air conditioner also includes a baffle that is housed in the air conditioning casing and guides the cold air and the warm air. Air conditioning air is introduced from the front side of the vehicle toward the rear side of the air conditioning casing, the heater is disposed downstream of the cooler in the air flow direction, and the cold air is introduced into the air conditioning casing from the heater to the heater.
  • the baffle is disposed in the air mix space in the air conditioning casing, and the baffle includes a warm air guide section that guides the warm air to the second row seat vent outlet, and a warm air guide section that guides the warm air to the second row seat vent outlet, and a A cold air guide portion is provided that guides the cold air flowing toward the rear side to the third row seat vent outlet.
  • the air conditioning air introduced from the front side of the air conditioning casing is cooled by the cooler to generate cold air, and heated by the heater to generate warm air.
  • the cold air flows above the heater toward the rear of the vehicle, enters the air mix space, and mixes with the warm air to generate conditioned air at a desired temperature.
  • the vent outlet for the second row seat is formed at the top of the air conditioning casing
  • the vent outlet for the third row seat is formed at the bottom of the air conditioning casing.
  • the warm air guide section of the baffle guides the warm air to the vent outlet for the second row seat
  • the cold air guide section guides the cold air to the vent outlet for the third row seat.
  • a heat outlet is formed in a lower portion of the air conditioning casing on the rear side of the vehicle, from which the conditioned air blows out to be supplied to the feet of the second row seat occupant and the third row seat occupant.
  • the cold air guide portion of the baffle guides the cold air flowing above the heater toward the rear of the vehicle to the heat outlet.
  • the heat outlet and the third row seat vent outlet are lined up in the longitudinal direction of the vehicle.
  • cold air can be supplied by the common cold air guide section to the heat outlet and the third row seat vent outlet that are lined up in the longitudinal direction of the vehicle, so the structure of the baffle can be simplified.
  • the heat outlet is located closer to the front of the vehicle than the third row seat vent outlet.
  • the temperature of the conditioned air supplied to the feet is often set to a relatively high temperature.
  • the heat outlet from which the conditioned air supplied to the feet is blown can be placed closer to the heater than the third-row seat vent outlet, making it easier to increase the temperature of the conditioned air blown from the heat outlet.
  • the baffle may be provided with a plurality of hot air guide portions spaced apart from each other in the vehicle width direction.
  • the warm air can be guided downward at multiple locations in the vehicle width direction, so the temperature of the conditioned air becomes even more uniform.
  • the baffle may be provided with a plurality of cold air guide portions spaced apart from each other in the vehicle width direction.
  • the temperature of the conditioned air becomes even more uniform.
  • the hot air guide section according to the seventh aspect of the present disclosure has a cylindrical shape that projects upward, and the cold air guide section may be provided between the hot air guide sections that are adjacent to each other in the vehicle width direction. good.
  • the hot air guide direction can be set with high precision.
  • the cooler is arranged so as to be inclined so that its air passing surface is located closer to the front of the vehicle as it goes upward, and the heater is arranged closer to the front of the vehicle as its air passing surface goes upward. It may be arranged at an angle so that it is located at
  • the height of the air conditioning casing can be suppressed, and the layout in the vehicle interior can be improved.
  • the baffle according to the ninth aspect of the present disclosure is arranged to face a surface of the heater located on the rear side of the vehicle.
  • the hot air flowing from the heater toward the rear of the vehicle can be efficiently guided by the hot air guide portion of the baffle.
  • the inside of the air conditioning casing according to the tenth aspect of the present disclosure includes a heat outlet for blowing out the conditioned air to be supplied to the feet of the second row seat occupant and the third row seat occupant, and a heat outlet for the third row seat.
  • a blowout direction switching damper may be provided to open and close the vent outlet. Between the downstream end of the baffle in the hot air flow direction and the blowout direction switching damper, there is an air outlet located on the rear side of the vehicle among the heat air outlet and the third row seat vent air outlet. It is also possible to form a gap flow path through which hot air can flow. Thereby, it is possible to make the air conditioning casing having a flow path for reducing the difference between the temperature of the conditioned air supplied to the second row and the temperature of the conditioned air supplied to the third row, for example, compact.
  • a vertical plate portion may be provided inside the air conditioning casing according to the eleventh aspect of the present disclosure at a location remote from the heater toward the rear of the vehicle.
  • the vertical plate portion may extend upward from the bottom wall portion of the air conditioning casing and may be disposed to face a surface of the heater on the vehicle rear side.
  • the cold air passing through the cold air guide section is guided upward by the vertical plate section to avoid heat reception from the heater as much as possible. It is possible to suppress the temperature rise of the air conditioned air blown out from the vent outlet for the eye sheet.
  • the cold air guide portion according to the twelfth aspect of the present disclosure may be provided at the center portion of the baffle in the vehicle width direction and on both sides in the vehicle width direction, and may be formed to extend in the vertical direction.
  • the cold air guide section at the center in the vehicle width direction can be formed to be located on the front side of the vehicle compared to lower portions of the cold air guide sections on both sides in the vehicle width direction. According to this configuration, since the cold air can be guided to the heat outlet side and exposed to the flow of warm air, the air mixing properties are improved and excessive temperature rise can be suppressed.
  • the baffle is provided with a warm air guide section that guides warm air to the vent outlet for the second row seat and a cold air guide section that guides cold air to the vent outlet for the third row seat, the air conditioning casing It is possible to improve the comfort of the occupants in the second row seat and the third row seat while reducing the size of the vehicle.
  • FIG. 1 is a perspective view of a vehicle air conditioner according to an embodiment of the present invention.
  • FIG. 1 is a diagram showing the inside of an automobile equipped with a vehicle air conditioner.
  • FIG. 2 is a left side view of the vehicle air conditioner.
  • FIG. 2 is a rear view of the vehicle air conditioner.
  • FIG. 2 is a cross-sectional view of the vehicle air conditioner in bi-level mode.
  • FIG. 2 is a cross-sectional view of the vehicle air conditioner in vent mode.
  • It is a perspective view of a baffle. It is a front view of a baffle. It is a top view of a baffle.
  • 9 is a sectional view taken along line XX in FIG. 8.
  • FIG. 9 is a sectional view taken along the line XI-XI in FIG. 8.
  • FIG. 8 is a sectional view taken along the line XI-XI in FIG. 8.
  • FIG. 1 shows a vehicle air conditioner 1 according to an embodiment of the present invention.
  • This vehicle air conditioner 1 is a device that is disposed within a vehicle interior R of an automobile 100, a portion of which is shown in FIG. 2, and that air-conditions the interior of the vehicle interior R.
  • the front side of the vehicle is simply referred to as the front
  • the rear side of the vehicle is simply referred to as the rear
  • the left side of the vehicle is simply referred to as the left
  • the right side of the vehicle is simply referred to as the right.
  • a front seat 101 consisting of a driver seat and a passenger seat spaced apart in the vehicle width direction (left-right direction) is provided at the front of the vehicle interior R of the automobile 100.
  • a second row seat 102 is arranged behind the front seat (first row seat) 101 in the vehicle interior R of the automobile 100, and a third row seat 103 is further arranged behind the second row seat 102. It is set up.
  • this automobile 100 is a vehicle that includes a front seat 101, a second row seat 102, and a third row seat 103.
  • an instrument panel P is arranged in front of the front seat 101.
  • a front seat air conditioner 200 separate from the vehicle air conditioner 1 is disposed inside this instrument panel P.
  • the front seat air conditioner 200 mainly generates conditioned air to be supplied to the occupant of the front seat 101 and conditioned air to be supplied to the inner surface of the front windshield G.
  • the front seat air conditioner 200 includes a cooler, a heater, an air mix damper, a blow-out direction switching damper, and the like. Note that ducts are omitted in FIG. 2.
  • the vehicle air conditioner 1 is a rear seat air conditioner that supplies the occupants of the second and third row seats 102 and 103, and is disposed at a rearward location away from the front seat air conditioner 200.
  • An example of a location where the vehicle air conditioner 1 is installed is, for example, between the driver's seat and the passenger seat.
  • a cover (not shown) that covers the vehicle air conditioner 1 is provided in the vehicle compartment R.
  • the vehicle air conditioner 1 includes a blower unit 2 and an air conditioning unit 3.
  • the blower unit 2 is a unit for blowing air-conditioning air to the air-conditioning unit 3, and includes a blower casing 20, a fan 21, and a motor (not shown) for rotationally driving the fan 21. ).
  • a suction port 20a for sucking air-conditioning air is formed in the left side wall portion of the ventilation casing 20.
  • the suction port 20a opens into the vehicle interior and sucks air (inside air) from the vehicle interior.
  • the fan 21 is a sirocco fan housed inside the blower casing 20, and its rotation axis extends in the left-right direction.
  • the motor is fixed to the right side wall of the blower casing 20, and the fan 21 is fixed to the output shaft of this motor. As the fan 21 rotates, the air-conditioning air sucked into the ventilation casing 20 from the suction port 20a is blown rearward.
  • the air conditioning unit 3 is placed behind the blower unit 2.
  • the air conditioning unit 3 includes an air conditioning casing 30.
  • the air conditioning casing 30 includes a left side member 30a that forms the left side of the air conditioning casing 30, and a right side member 30b that forms the right side of the air conditioning casing 30.
  • the left side member 30a and the right side member 30b are made of resin and are integrally connected to each other by a fastening member.
  • the rear part of the blower casing 20 is connected to the front part of the air conditioning casing 30 and is integrated.
  • the air conditioning casing 30 has a longitudinal dimension longer than its vertical dimension, and has an overall shape longer than the blower casing 20 in the longitudinal direction. As shown in FIG. 5, an air introduction port 30c for introducing conditioning air into the interior of the air conditioning casing 30 is formed in the vertically intermediate portion of the front wall portion of the air conditioning casing 30. An air discharge part 20b (shown in FIGS. 1 and 3) provided at the rear of the blower casing 20 is connected to the air inlet 30c, and the air-conditioning air blown from the blower unit 2 is sent to the air-conditioner casing. 30 is introduced from the front side and forms a flow toward the rear side.
  • the air conditioning unit 3 includes a cooler 31 that cools the conditioning air introduced by the blower unit 2 to generate cold air, and a heater 32 that heats the conditioning air to generate warm air. It is equipped with The cooler 31 and the heater 32 are housed in the air conditioning casing 30, and the heater 32 is arranged downstream of the cooler 31 in the air flow direction.
  • the cooler 31 is composed of, for example, an evaporator.
  • the automobile 100 is equipped with a compressor for compressing refrigerant, a condenser, an expansion valve, etc., although not shown. These devices constitute a refrigeration cycle.
  • the heater 32 is composed of, for example, a heater core.
  • the heater 32 When the heater 32 is composed of a heater core, cooling water flows into the heater 32 to cool the engine, motor, inverter, etc. that are heat sources. Further, the heater 32 may be composed of, for example, the above-mentioned condenser or the like, or may be composed of an electric heater that generates heat when energized.
  • the vertical dimension of the heater 32 is set shorter than the vertical dimension of the cooler 31. Further, the dimension of the heater 32 in the air passage direction is set shorter than the dimension of the cooler 31 in the air passage direction.
  • a cold air generation passage R1 Inside the air conditioning unit 3, a cold air generation passage R1, a warm air generation passage R2, a bypass passage R3, and an air mix space R4 are formed.
  • the cold air generation passage R1 is formed in the front portion inside the air conditioning unit 3.
  • the upstream end of the cold air generation passage R1 is connected to the air introduction port 30c.
  • the cold air generation passage R1 extends rearward from a connection portion to the air introduction port 30c.
  • the vertical dimension of the cold air generation passage R1 becomes longer toward the rear, and the cross-sectional area of the cold air generation passage R1 gradually increases toward the rear.
  • a cooler 31 is disposed in a portion of the cold air generation passage R1 that is rearwardly away from the connection portion to the air inlet 30c.
  • the cooler 31 has an air passage surface 31a through which conditioning air passes.
  • the cooler 31 is arranged at an angle so that the air passage surface 31a is positioned closer to the front as it goes upward.
  • the air-conditioning air flowing through the cold air generation passage R1 flows from the front of the cooler 31 to the rear through the cooler 31, and is cooled by exchanging heat with a refrigerant or the like while passing through the cooler 31.
  • the hot air generation passage R2 is formed inside the air conditioning unit 3 behind the cold air generation passage R1.
  • the upstream end of the hot air generation passage R2 communicates with the lower portion of the downstream end of the cold air generation passage R1. Therefore, the air conditioning air that has passed through the cold air generation passage R1 flows into the hot air generation passage R2.
  • the hot air generation passage R2 extends toward the rear side, and the length of the hot air generation passage R2 in the front and rear direction is set shorter than the length of the cold air generation passage R1 in the front and rear direction.
  • the vertical dimension of the hot air generation passage R2 is set shorter than the vertical dimension of the cold air generation passage R1.
  • a heater 32 is arranged in the hot air generation passage R2.
  • the heater 32 has an air passage surface 32a through which conditioning air passes.
  • the heater 32 is arranged at an angle so that the air passage surface 32a is located toward the front as it goes upward.
  • the air-conditioning air flowing through the hot air generation passage R2 flows from the front of the heater 32 to the rear through the heater 32, and is heated by exchanging heat with cooling water etc. while passing through the heater 32. Ru.
  • the air passage surface 32a of the heater 32 is inclined in a direction pointing backward and downward from the vent outlet 30d for the second row seat and upward than the vent outlet 30e and the heat outlet 30f for the third row seat. provided.
  • the flow resistance to the third row seat vent outlet 30e and the heat outlet 30f can be reduced, and by arranging the second row seat vent outlet 30d in the front, the air conditioning casing 30 can be made smaller. can be converted into
  • the bypass passage R3 is formed inside the air conditioning unit 3 behind the cold air generation passage R1 and located above the hot air generation passage R2.
  • the upstream end of the bypass passage R3 communicates with the upper portion of the downstream end of the cold air generation passage R1. Therefore, the air conditioning air that has passed through the cold air generation passage R1 flows into the bypass passage R3.
  • the bypass passage R3 extends above the heater 32 toward the rear side.
  • the length of the bypass passage R3 in the longitudinal direction is set shorter than the length of the cold air generation passage R1 in the longitudinal direction. Further, the vertical dimension of the bypass passage R3 is set shorter than the vertical dimension of the hot air generation passage R2.
  • the air mix space R4 is a space for mixing cold air and hot air, and is formed inside the air conditioning unit 3 at the rear and upper part.
  • the downstream end of the bypass passage R3 is connected to the air mix space R4 from the front side, and the air conditioning air that has passed through the bypass passage R3 bypasses the hot air generation passage R2 and is connected to the air mix space R4 from the front side. It flows rearward into the mix space R4. Therefore, a bypass passage (air passage) R3 is formed inside the air conditioning casing 30 so that the cold air flows rearward above the heater 32 and flows into the air mix space R4.
  • Conditioned air at a desired temperature is generated by colliding and mixing the cold air and warm air that have flowed into the air mix space R4.
  • the temperature of the conditioned air can be adjusted by the mixing ratio of cold air and warm air in the air mix space R4. If the proportion of cold air flowing into the air mix space R4 increases, the temperature of the conditioned air will decrease, and on the other hand, if the proportion of warm air flowing into the air mix space R4 increases, the temperature of the conditioned air will rise.
  • the air conditioning unit 3 includes an air mix damper 33 for changing the mixing ratio of cold air and warm air in the air mix space R4.
  • the air mix damper 33 is housed in the air conditioning casing 30.
  • the damper that can be used as the air mix damper 33 may be of any type, such as butterfly type, rotary type, louver type, etc., but in this embodiment, a slide damper is used. .
  • the air mix damper 33 has an upper part of the downstream end of the cold air generation passage R1 (a part communicating with the bypass passage R3) and a lower part of the downstream end of the cold air generation passage R1 (a part communicating with the hot air generation passage R2). ) is configured so that the opening degree can be changed. More specifically, the air mix damper 33 is supported on the inner surface of the air conditioning casing 30 so as to be slidable in the vertical direction. The air mix damper 33 is driven in the vertical direction by the drive device 34.
  • the air mix damper 33 has a plate shape, for example, and has an opening formed in a part thereof.
  • the operation of the air mix damper 33 is not particularly limited, when the air mix damper 33 is slid upward, the opening area of the upper part of the downstream end of the cold air generation passage R1 becomes smaller, and the opening area of the upper part of the downstream end of the cold air generation passage R1 becomes smaller. It can be operated so that the opening area of the lower portion of the downstream end becomes larger. On the contrary, when the air mix damper 33 is slid downward, the opening area of the upper part of the downstream end of the cold air generation passage R1 becomes larger, while the opening area of the lower part of the downstream end of the cold air generation passage R1 becomes smaller.
  • the air mix damper 33 when the air mix damper 33 is slid to the upper end position, the upper part of the downstream end of the cold air generation passage R1 is fully closed, while the lower part of the downstream end of the cold air generation passage R1 is fully opened, and When the air mix damper 33 is slid to the lower end position, the upper part of the downstream end of the cold air generation passage R1 is fully opened, while the lower part of the downstream end of the cold air generation passage R1 is fully closed. That is, by operating the air mix damper 33, the amount of cold air and the amount of hot air flowing into the air mix space R4 can be changed.
  • the air mix damper is of the butterfly type or louver type, the amount of cold air and warm air flowing into the air mix space R4 can be changed by the rotation angle of the air mix damper. If the air mix damper is of a rotary type, the amount of cold air and warm air flowing into the air mix space R4 can be changed by changing the rotation angle of the air mix damper.
  • a vent outlet 30d for the second row seat is formed in the upper part of the rear side of the air conditioning casing 30, from which the conditioned air supplied to the upper body of the occupant in the second row seat 102 is blown out.
  • the second row seat vent outlet 30d opens upward.
  • the shape of the second row seat vent outlet 30d is elongated in the left-right direction.
  • the second row seat vent outlet 30d communicates with the upper part of the air mix space R4, and the air in the air mix space R4 can flow toward the second row seat vent outlet 30d.
  • a duct (not shown) is connected to the second row seat vent outlet 30d, and the duct guides the conditioned air in a desired direction.
  • a heater 32 is located below the second row seat vent outlet 30d.
  • the heater 32 and the vent outlet 30d for the second row seat are separated from each other in the vertical direction, and a part of the baffle 50 described later is positioned between the heater 32 and the vent outlet 30d for the second row seat. It is being
  • a third-row seat vent outlet 30e is formed at the rear lower part of the air-conditioning casing 30, from which the conditioned air supplied to the upper body of the occupant of the third-row seat 103 is blown out.
  • a heat outlet 30f is formed at the lower rear side of the air conditioning casing 30 to blow out conditioned air to be supplied to the feet of the occupants in the second row seat 102 and the third row seat 103.
  • a bulging portion 30A that bulges out rearward is formed on the rear side of the air conditioning casing 30.
  • a lower portion of the air mix space R4 is formed on the upper side inside the bulging portion 30A. Therefore, mixing of cold air and warm air is possible at the upper side inside the bulging portion 30A.
  • a vent passage R5 for the third row seat and a heat passage R6 for the rear seat are formed on the lower side inside the bulging portion 30A, and a vent passage R5 for the third row seat and a heat passage R6 for the rear seat are formed.
  • a partition portion 38 is formed to partition the area.
  • the third row seat vent passage R5 extends in the vertical direction inside the bulging portion 30A, and the upper end (upstream end) of the third row seat vent passage R5 is located at the lower part of the air mix space R4. is connected to.
  • the rear seat heat passage R6 extends in the front side of the inside of the bulging portion 30A in the vertical direction, and the upper end (upstream end) of the rear seat heat passage R6 is connected to the third row seat in the lower part of the air mix space R4. It communicates with the front part of the vent passage R5.
  • a third-row seat vent outlet 30e communicates with the lower end (downstream end) of the third-row seat vent passage R5.
  • a heat outlet 30f communicates with the lower end (downstream end) of the rear seat heat passage R6.
  • the heat outlet 30f and the third-row seat vent outlet 30e are arranged in the front-rear direction, and specifically, the heat outlet 30f is located in front of the third-row seat vent outlet 30e. .
  • the position of the third row seat vent outlet 30e is located behind the lower part of the heater 32.
  • the heat outlet 30f and the third row seat vent outlet 30e open downward.
  • the shapes of the heat outlet 30f and the third row seat vent outlet 30e are elongated in the left-right direction.
  • the third row seat vent outlet 30e opens at a higher position than the heat outlet 30f, and the third row seat vent outlet 30e has a duct (not shown) that extends to the vicinity of the third row seat 103. ) is connected.
  • a foot duct (not shown) that extends to the vicinity of the feet of the occupant in the second row seat 102 and the vicinity of the foot of the occupant in the third row seat 103 is connected to the heat outlet 30f.
  • a vertical plate portion 35 is provided inside the air conditioning casing 30 at a location remote from the heater 32 to the rear.
  • the vertical plate portion 35 extends upward from the bottom wall portion of the air conditioning casing 30 and is disposed to face the rear surface of the heater 32.
  • the air-conditioning air that has passed through the heater 32 is guided upward by the vertical plate portion 35, that is, toward the air mix space R4.
  • the vertical wall portion 35 is arranged to face the rear surface of the heater 32, the cold air passing through the cold air guide portion 52 in the vent mode is guided upward by the vertical plate portion 35 and is removed from the heater 32. heat reception can be avoided as much as possible. Thereby, the temperature rise of the conditioned air blown out from the second row seat vent outlet 30d can be suppressed.
  • the air conditioning unit 3 includes an upper damper 36 and a lower damper 37.
  • the upper damper 36 and the lower damper 37 are blowing direction switching dampers for switching the blowing direction of the conditioned air.
  • the upper damper 36 is housed inside the air conditioning casing 30 at the rear side and at the top, and the lower damper 37 is housed inside the air conditioning casing 30 at the rear side and at the bottom.
  • the upper damper 36 and the lower damper 37 are driven by a drive mechanism (not shown).
  • the upper damper 36 and the lower damper 37 may be linked or driven separately.
  • the drive control of the upper damper 36 and the lower damper 37 can be performed using a conventionally known method, and the upper damper 36 and the lower damper 37 are driven by the operation of the occupant so that the blowing mode desired by the occupant is achieved.
  • the upper damper 36 and the lower damper 37 may be driven according to the logic of automatic air conditioner control.
  • the upper damper 36 is a damper for opening and closing the vent outlet 30d for the second row seat, and is a vent damper for the second row seat. That is, the upper damper 36 is a butterfly type damper that includes a rotation shaft 36a extending in the left-right direction and two closing plate portions 36b extending in the radial direction from the rotation shaft 36a. The rotation shaft 36a is rotatably supported on both left and right side walls of the air conditioning casing 30. In the state shown in FIGS. 5 and 6, the upper damper 36 opens the second row seat vent outlet 30d. In the bilevel mode shown in FIG. 5, the opening degree of the second row seat vent outlet 30d by the upper damper 36 is smaller than in the vent mode shown in FIG. Although not shown, by rotating the upper damper 36 toward the rear, the second row seat vent outlet 30d can be fully closed.
  • the lower damper 37 is a damper for opening and closing the vent outlet 30e for the third row seat and the heat outlet 30f, and is a damper for the third row seat.
  • the lower damper 37 is located inside the bulging portion 30A, and indirectly opens the third row seat vent outlet 30e by opening and closing the upstream end of the third row seat vent passage R5. Furthermore, by opening and closing the upstream end of the rear seat heat passage R6, the heat outlet 30f can be indirectly opened and closed.
  • the lower damper 37 is a rotary type damper that includes a rotation shaft 37a extending in the left-right direction and a closing plate portion 37b located radially away from the rotation shaft 37a.
  • the rotation shaft 37a is rotatably supported on both left and right side walls of the air conditioning casing 30.
  • the closing plate portion 37b is supported with respect to the rotation shaft 37a via the support plate portion 37c.
  • the support plate portion 37c projects in the radial direction from the rotation shaft 37a. A tip end in the protruding direction of the support plate portion 37c is connected to the closing plate portion 37b.
  • the lower damper 37 rotates until it reaches a rotational position that opens both the third row seat vent outlet 30e and the heat outlet 30f.
  • the vent mode shown in FIG. 6 the lower damper 37 rotates until it reaches a rotational position where the heat outlet 30f is fully closed and the third row seat vent outlet 30e is fully opened.
  • the lower damper 37 can also be rotated until it reaches a rotational position where the heat outlet 30f is fully opened and the third row seat vent outlet 30e is fully closed.
  • the air conditioning unit 3 includes a baffle 50 that guides cold air and warm air.
  • the baffle 50 is made of, for example, a resin material, and is housed in the air mix space R4 inside the air conditioning casing 30.
  • the left side of the baffle 50 is fixed to the inner surface of the left side wall of the air conditioning casing 30, and the right side of the baffle 50 is fixed to the inner surface of the right side wall of the air conditioning casing 30.
  • the baffle 50 is arranged above the lower damper 37 to face the rear surface of the heater 32. Further, a baffle 50 is located upwardly away from the vertical plate portion 35, so that the warm air guided upward by the vertical plate portion 35 flows toward the baffle 50.
  • the baffle 50 has an overall long shape in the left-right direction, and is disposed inside the air conditioning casing 30 from near the left end to near the right end.
  • the baffle 50 includes a plurality of hot air guide portions 51 that guide hot air to the second row seat vent outlet 30d, and a plurality of hot air guide portions 51 that guide the hot air to the second row seat vent outlet 30d, and a plurality of hot air guide portions 51 that guide the hot air to the second row seat vent outlet 30d, and a plurality of hot air guide portions 51 that guide the hot air to the second row seat vent outlet 30d.
  • a plurality of cold air guide portions 52 are provided that guide the cold air to the third row seat vent outlet 30e.
  • the cold air guide portion 52 is a portion that simultaneously guides the cold air flowing above the heater 32 to the rear side to the heat outlet 30f.
  • hot air guide sections 51 are provided on the baffle 50 at intervals in the vehicle width direction, and five cold air guide sections 52 are provided on the baffle 50 at intervals in the vehicle width direction. It is set in. Although not shown, the number of hot air guide sections 51 is not limited to four, and may be any number of three or less or five or more. Further, the number of cold air guide portions 52 is not limited to five, and may be any number of four or less and six or more.
  • the hot air guide parts 51 are arranged to the left of the center of the baffle 50 in the left-right direction, and the remaining two are arranged to the right of the center of the baffle 50 in the left-right direction.
  • the interval between the two hot air guide sections 51 on the left side of the baffle 50 is equal to the interval between the two hot air guide sections 51 on the right side of the baffle 50. Further, the interval between the two hot air guide sections 51 adjacent to each other near the center of the baffle 50 is set wider than the interval between the two hot air guide sections 51 on the left side.
  • the hot air guide section 51 has a cylindrical shape that projects upward, and a hot air outlet 51a through which hot air flows out is opened upward at its upper end.
  • the hot air outlet 51a is located behind the rotation shaft 36a of the upper damper 36.
  • the hot air outlet 51a is closed by the closing plate portion 36b located on the rear side of the upper damper 36. There is.
  • the lower end of the cylindrical portion constituting the hot air guide section 51 is open downward.
  • the longitudinal dimension of the hot air guide section 51 is set to become longer toward the bottom, and the longitudinal dimension of the hot air outlet 51a is the shortest. In this way, since the cross-sectional area of the cylindrical portion constituting the hot air guide section 51 increases as it goes downward, the hot air is directed from the bottom of the hot air guide section 51 to the hot air guide section 51. Easier to introduce internally.
  • the hot air guide section 51 located at the left end and the warm air guide section 51 located at the right end are each formed with a protrusion 51b that projects rearward.
  • the protrusion 51b has a plate shape extending in the left-right direction. As shown in FIG. 5, the tip of the protrusion 51b comes into contact with the inner surface of the bulge 30A.
  • the cold air guide section 52 has a plate shape that extends in the vertical direction, and is curved toward the rear.
  • the width (horizontal dimension) of the cold air guide section 52 located at the center in the left and right direction (the center in the vehicle width direction) of the baffle 50 is the same as that of the other cold air guide sections 52 (cold air guide sections located on both sides in the vehicle width direction).
  • the lower portion of the cold air guide portion 52 located at the center of the baffle 50 in the left-right direction is formed to be located on the front side compared to the lower portions of the other cold air guide portions 52.
  • the cold air guide section 52 located at the center in the left-right direction can guide the cold air to the heat outlet 30f side and expose it to the flow of warm air, improving air mix performance and preventing excessive temperature rise. It can be suppressed.
  • the lower end of the cold air guide section 52 is located above and behind the upper end of the vertical plate section 35. Further, the upper end of the cold air guide section 52 is formed to extend to the upper end of the heater 32, and is spaced forward from the rotation axis 36a of the upper damper 36. Therefore, the cold air guide portion 52 extends from the upper end of the heater 32 toward between the upper end of the vertical plate portion 35 and the rotation shaft 37a of the lower damper 37. Furthermore, the cold air guide section 52 is arranged to face the upper part of the rear surface of the heater 32 with a predetermined distance therebetween. Comparing the heights of the upper end of the cold air guide section 52 and the upper end of the hot air guide section 51, the upper end of the warm air guide section 51 is located higher.
  • a gap flow path R7 is formed in which warm air can flow into the outlet located on the rear side. That is, the downstream end of the baffle 50 in the hot air flow direction is arranged to face the outer peripheral surface of the rotating shaft 37a of the lower damper 37 with a predetermined gap in the vertical direction. As a result, a gap flow path R7 is formed between the lower end of the baffle 50 and the outer peripheral surface of the rotating shaft 37a of the lower damper 37.
  • warm air can be made to flow into the third row seat vent outlet 30e, so that the temperature of the air conditioned air supplied to the second row and the temperature of the air conditioned air supplied to the third row can be adjusted.
  • the air conditioning casing 30, which can reduce the difference in temperature of the air conditioned air, can be made compact.
  • downstream end of the cold air guide section 52 located at the center of the baffle 50 in the left-right direction is located forward of the rotation shaft 37a of the lower damper 37. Therefore, it becomes possible to guide the cold air to the heat outlet 30f side.
  • the second row seat vent outlet 30d is formed in the upper part of the air conditioning casing 30, and the third row seat vent outlet 30e is formed in the lower part of the air conditioning casing 30.
  • the vent outlet 30d for the second row seat and the vent outlet 30e for the third row seat are far apart in the vertical direction, the temperature of the conditioned air blown out from the vent outlet 30d for the second row seat and the temperature of the air conditioned air blown out from the vent outlet 30d for the second row seat are There is a possibility that the difference in temperature from the temperature of the conditioned air blown out from the sheet vent outlet 30e becomes large.
  • the temperature of the conditioned air blown out from the second row seat vent outlet 30d becomes lower, and Since the warm air that has passed through the third row seat vent outlet 30e is flowing below, the temperature of the conditioned air blowing out from the third row seat vent outlet 30e may become high.
  • the baffle 50 by providing the baffle 50, the difference between the temperature of the conditioned air blown out from the vent outlet 30d for the second row seat and the temperature of the conditioned air blown out from the vent outlet 30e for the third row seat is reduced. At the same time, an extreme temperature rise in the conditioned air blown out from the heat outlet 30f is suppressed.
  • the bilevel mode shown in FIG. 5 will be explained.
  • conditioned air is blown out from the second row seat vent outlet 30d, the third row seat vent outlet 30e, and the heat outlet 30f.
  • the hot air that has flowed into the air mix space R4 from the hot air generation passage R2 flows into the cylindrical portion from the lower end of the cylindrical portion that constitutes the hot air guide portion 51 of the baffle 50.
  • the warm air guide portion 51 extends upward toward the second row seat vent outlet 30d, the warm air blown from the hot air outlet 51a is supplied to the second row seat vent outlet 30d. .
  • a passage extending downward is formed between the inner surface of the rear wall of the bulging portion 30A and the cold air guide portion 52 of the baffle 50, so that the cold air flowing from the cooler 31 into the air mix space R4 The air flows between the inner surface of the rear wall of the bulging portion 30A and the cold air guide portion 52 of the baffle 50. Since the cold air guide portion 52 extends downward, cold air is supplied to the third row seat vent outlet 30e and the heat outlet 30f. Therefore, the difference between the temperature of the conditioned air blown out from the vent outlet 30d for the second row seat and the temperature of the conditioned air blown out from the vent outlet 30e for the third row seat becomes smaller, and the temperature of the conditioned air blown out from the heat outlet 30f decreases. Extreme temperature rise is suppressed.
  • vent mode In the vent mode, conditioned air is blown out from the vent outlet 30d for the second row seat and the vent outlet 30e for the third row seat.
  • the hot air guide portion 51 extends upward toward the second row seat vent outlet 30d, so that the warm air blown from the hot air outlet 51a is transferred to the second row seat vent outlet. 30d.
  • the cold air guide portion 52 extends downward, the cold air flowing into the air mix space R4 from the cooler 31 is supplied to the third row seat vent outlet 30e, and the cool air is supplied to the heat outlet. Since the heat outlet 30f is located at the bottom, the heat is also supplied to the heat outlet 30f. At this time, since the heat outlet 30f is closed by the lower damper 37, the cold air flowing toward the heat outlet 30f tries to change direction and flow upward. Since the hot air that has passed through the heater 32 is flowing above the heat outlet 30f, the cool air that has changed direction hits the warm air and pushes up the hot air.
  • the hot air guide section 51 guides warm air to the vent outlet 30d for the second row seat, and the cold air guide section guides the cold air to the vent outlet 30e for the third row seat.
  • 52 on the baffle 50 it is possible to reduce the size of the air conditioning casing 30 and improve the comfort of the occupants in the second and third row seats.
  • the cold air guide section 52 can also guide the cold air to the heat outlet 30f, it is possible to suppress the extreme temperature rise of the conditioned air blown out from the heat outlet 30f, further improving the comfort of the occupants.
  • the vehicle air conditioner according to the present invention can be applied to, for example, an automobile equipped with a second row seat and a third row seat.
  • Vehicle air conditioner Air conditioning casing 30d Second row seat vent outlet 30e Third row seat vent outlet 30f Heat outlet 31 Cooler 32 Heater 33 Air mix damper 50 Baffle 51 Hot air guide section 52 Cold air guide Part R4 Air mix space R7 Gap flow path 100 Car 102 2nd row seat 103 3rd row seat

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

Abstract

Selon la présente invention, un orifice de soufflage de ventilation 30d pour un siège de deuxième rangée est formé dans une section supérieure d'un boîtier de climatisation 30 sur le côté arrière de véhicule et un orifice de soufflage de ventilation 30e pour un siège de troisième rangée est formé dans une section inférieure, du boîtier de climatisation 30, par rapport à un dispositif de chauffage 32 sur le côté arrière de véhicule. Un déflecteur 50 est disposé dans un espace de mélange d'air R4 à l'intérieur du boîtier de climatisation 30. Le déflecteur 50 comprend : une partie de guidage d'air chaud 51 qui guide l'air chaud vers l'orifice de soufflage de ventilation 30d pour le siège de deuxième rangée ; et une partie de guidage d'air froid 52 qui guide, vers l'orifice de soufflage de ventilation 30e pour le siège de troisième rangée, de l'air froid s'écoulant au-dessus du dispositif de chauffage 32 vers le côté arrière de véhicule.
PCT/JP2023/007641 2022-03-08 2023-03-01 Dispositif de climatisation de véhicule WO2023171503A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-035401 2022-03-08
JP2022035401A JP2023130860A (ja) 2022-03-08 2022-03-08 車両用空調装置

Publications (1)

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WO2023171503A1 true WO2023171503A1 (fr) 2023-09-14

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PCT/JP2023/007641 WO2023171503A1 (fr) 2022-03-08 2023-03-01 Dispositif de climatisation de véhicule

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JP (1) JP2023130860A (fr)
WO (1) WO2023171503A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009227026A (ja) * 2008-03-21 2009-10-08 Denso Corp 車両用空調装置
JP2010018248A (ja) * 2008-07-14 2010-01-28 Denso Corp 車両用空調装置
JP2016022776A (ja) * 2014-07-17 2016-02-08 マツダ株式会社 車両の制御装置
JP2016203667A (ja) * 2015-04-15 2016-12-08 株式会社デンソー 車両用空調ユニット

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009227026A (ja) * 2008-03-21 2009-10-08 Denso Corp 車両用空調装置
JP2010018248A (ja) * 2008-07-14 2010-01-28 Denso Corp 車両用空調装置
JP2016022776A (ja) * 2014-07-17 2016-02-08 マツダ株式会社 車両の制御装置
JP2016203667A (ja) * 2015-04-15 2016-12-08 株式会社デンソー 車両用空調ユニット

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