WO2023171503A1 - Vehicular air-conditioning device - Google Patents

Vehicular air-conditioning device 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
French (fr)
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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/en

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

Abstract

According to the present invention, a vent blowout port 30d for a second-row seat is formed in an upper section of an air-conditioning casing 30 on the vehicle rear side, and a vent blowout port 30e for a third-row seat is formed in a lower section, of the air-conditioning casing 30, than a heater 32 on the vehicle rear side. A baffle 50 is disposed in an air mix space R4 inside the air-conditioning casing 30. The baffle 50 has: a hot air guide part 51 which guides hot air to the vent blowout port 30d for the second-row seat; and a cold air guide part 52 which guides, to the vent blowout port 30e for the third-row seat, cold air flowing above the heater 32 toward the vehicle rear side.

Description

車両用空調装置Vehicle air conditioner
　本開示は、自動車等に搭載される車両用空調装置に関する。 The present disclosure relates to a vehicle air conditioner installed in an automobile or the like.
　車両用空調装置は、冷却器及び加熱器を収容する空調ケーシングを備えており、この空調ケーシング内に導入された空調用空気を冷却器及び加熱器により温度調整するように構成されている。温度調整された空気は、空調ケーシングに設けられている吹出方向切替ダンパにより乗員の上半身、足下等、車室の各部に供給される。 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.
　特許文献１の空調ケーシングの内部には、温風通路の下流端から流出する温風を後席用通路へ案内するための右側温風案内部と、下側冷風通路の下流端から流出する冷風をヒート通路へ案内するための中央冷風案内部とを備えるバッフルプレートが配設されている。 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.
　また、特許文献２の空調ケーシングの内部には、温風及び冷風の合流部位にバッフルが配設されている。バッフルには、温風通路からの温風をデフロスト吹出口方向に導く温風ガイド部と、バイパス通路からの冷風をベント吹出口方向に導く冷風ガイド部とが設けられている。 Further, inside the air conditioning casing of Patent Document 2, 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.
　また、特許文献３の空調ケーシングには、フェイス開口部とフット開口部とを開閉するフェイスフットダンパが設けられている。フェイスフットダンパの先端には、バイレベルモード時に加熱器からの温風をフェイス開口部に向かって案内する温風ガイド部と、バイパス通路からの冷風をフット開口部に向かって案内する冷風ガイド部とからなるガイド部材が設けられている。 Further, 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. At the tip of the face foot damper, there is a hot air guide section that guides hot air from the heater toward the face opening in bilevel mode, and a cold air guide section that guides cold air from the bypass passage toward the foot opening. A guide member is provided.
特開２０１８－１３１１５０号公報Japanese Patent Application Publication No. 2018-131150 特開２０１７－１０５２３５号公報JP2017-105235A 特開２００９－１９６５０７号公報Japanese Patent Application Publication No. 2009-196507
　ところで、３列シートの自動車では、２列目シートの乗員と３列目シートの乗員用として、運転席及び助手席用の空調装置（前席用空調装置）とは別に、後席用空調装置が設けられる場合がある。ところが、後席用空調装置は、インストルメントパネルよりも後方の車室内に配設する必要があり、前席用空調装置が配設されるインストルメントパネル内部のような大きな空間を後席用空調装置のために確保するのは困難である。 By the way, in a car with three rows of seats, there is an air conditioning system for the rear seats, separate from the air conditioning system for the driver and front passenger seats (air conditioning system for the front seats), for the passengers in the second row seats and the passengers in the third row seats. may be provided. However, 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.
　このため、後席用空調装置の空調ケーシングは小型化する必要があり、そのように大きさが限られた空調ケーシングの内部において冷風及び温風を狙い通りに混合可能な広いエアミックス空間を形成することは難しく、また２列目シートの乗員と３列目シートの乗員のそれぞれの上半身及び足下に所望温度の空調風を供給するのは難しい。 For this reason, 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.
　本開示は、かかる点に鑑みたものであり、その目的とするところは、冷却器及び加熱器が収容される空調ケーシングを小型化しつつ、２列目シートの乗員及び３列目シートの乗員の快適性を向上させることにある。 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.
　上記目的を達成するために、本開示の第１の態様では、運転席及び助手席の車両後方に配設された２列目シートと該２列目シートの車両後方に配設された３列目シートとを備えた自動車の車室内に配設される車両用空調装置を前提とすることができる。車両用空調装置は、空調用空気を冷却して冷風を生成する冷却器と、空調用空気を加熱して温風を生成する加熱器と、前記冷却器及び前記加熱器を収容するとともに、前記冷風及び前記温風を混合するエアミックス空間が内部に形成された空調ケーシングと、前記空調ケーシングに収容され、前記冷風と前記温風との前記エアミックス空間における混合割合を変更するエアミックスダンパとを備えている。前記空調ケーシングの車両後側の上部には、２列目シートの乗員の上半身へ供給される空調風が吹き出す２列目シート用ベント吹出口が形成され、前記空調ケーシングの前記加熱器よりも車両後側の下部には、３列目シートの乗員の上半身へ供給される空調風が吹き出す３列目シート用ベント吹出口が形成されている。車両用空調装置は、前記空調ケーシングに収容され、前記冷風及び前記温風を案内するバッフルも備えている。前記空調ケーシングの車両前側から後側へ向けて空調用空気が導入され、前記冷却器の空気流れ方向下流側に前記加熱器が配置され、前記空調ケーシングの内部には、前記冷風が前記加熱器の上方を車両後側へ流れて前記エアミックス空間に流入するように空気通路が形成されている。前記バッフルは、前記空調ケーシング内における前記エアミックス空間に配置され、前記バッフルには、前記温風を前記２列目シート用ベント吹出口へ導く温風案内部と、前記加熱器の上方を車両後側へ流れた前記冷風を前記３列目シート用ベント吹出口へ導く冷風案内部とが設けられている。 In order to achieve the above object, 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. It is equipped with 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. An air passage is formed so as to flow above the air to the rear of the vehicle and into the air mix space. 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.
　この構成によれば、空調ケーシングの前側から導入された空調用空気が冷却器により冷却されて冷風が生成され、加熱器により加熱されて温風が生成される。冷風は加熱器の上方を車両後側へ流れてエアミックス空間に流入して温風と混合し、所望温度の空調風が生成される。このとき、２列目シート用ベント吹出口は空調ケーシングの上部に、３列目シート用ベント吹出口は空調ケーシングの下部にそれぞれ形成されていて、上下方向に大きく離れているので、２列目シート用ベント吹出口から吹き出す空調風の温度と、３列目シート用ベント吹出口から吹き出す空調風の温度との差が大きくなる可能性がある。具体的には、冷風が加熱器の上方を流れているので、２列目シート用ベント吹出口から吹き出す空調風の温度が低く、３列目シート用ベント吹出口から吹き出す空調風の温度が高くなる場合がある。 According to this configuration, 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. At this time, the vent outlet for the second row seat is formed at the top of the air conditioning casing, and the vent outlet for the third row seat is formed at the bottom of the air conditioning casing. There is a possibility that the difference in temperature between the temperature of the conditioned air blown out from the vent outlet for the seat and the temperature of the conditioned air blown out from the vent outlet for the third row seat becomes large. Specifically, since the cold air is flowing above the heater, the temperature of the conditioned air blown out from the vent outlet for the second row seat is low, and the temperature of the conditioned air blown out from the vent outlet for the third row seat is high. It may happen.
　このことに対して、本態様では、バッフルの温風案内部によって温風を２列目シート用ベント吹出口へ導き、冷風案内部によって冷風を３列目シート用ベント吹出口へ導くので、２列目シート用ベント吹出口から吹き出す空調風の温度と、３列目シート用ベント吹出口から吹き出す空調風の温度との差が小さくなる。 In contrast, in this aspect, the warm air guide section of the baffle guides the warm air to the vent outlet for the second row seat, and the cold air guide section guides the cold air to the vent outlet for the third row seat. The difference between the temperature of the conditioned air blown out from the vent outlet for the row seat and the temperature of the conditioned air blown out from the vent outlet for the third row seat becomes smaller.
　本開示の第２の態様では、前記空調ケーシングの車両後側の下部には、２列目シートの乗員及び３列目シートの乗員の足下へ供給される空調風が吹き出すヒート吹出口が形成され、前記バッフルの前記冷風案内部は、前記加熱器の上方を車両後側へ流れた前記冷風を前記ヒート吹出口へ導くものである。 In a second aspect of the present disclosure, 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.
　この構成によれば、冷風をヒート吹出口へも導くことができるので、ヒート吹出口から吹き出す空調風の温度が過度に上昇してしまうのを抑制できる。 According to this configuration, since the cold air can also be guided to the heat outlet, it is possible to suppress the temperature of the conditioned air blown out from the heat outlet from rising excessively.
　本開示の第３の態様では、前記ヒート吹出口と前記３列目シート用ベント吹出口とは車両前後方向に並んでいる。 In a third aspect of the present disclosure, the heat outlet and the third row seat vent outlet are lined up in the longitudinal direction of the vehicle.
　この構成によれば、車両前後方向に並ぶヒート吹出口と３列目シート用ベント吹出口に対して共通の冷風案内部によって冷風を供給できるので、バッフルの構造を簡略化することができる。 According to this configuration, 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.
　本開示の第４の態様では、前記ヒート吹出口は、前記３列目シート用ベント吹出口よりも車両前側に位置している。 In a fourth aspect of the present disclosure, the heat outlet is located closer to the front of the vehicle than the third row seat vent outlet.
　すなわち、足下に供給する空調風の温度は比較的高めに設定される場合が多い。本態様では、足下に供給する空調風が吹き出すヒート吹出口を３列目シート用ベント吹出口よりも加熱器に近づけることができるので、ヒート吹出口から吹き出す空調風の温度を高めやすい。 That is, the temperature of the conditioned air supplied to the feet is often set to a relatively high temperature. In this aspect, 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.
　本開示の第５の態様では、前記バッフルには、複数の前記温風案内部が車幅方向に互いに間隔をあけて設けられていてもよい。 In a fifth aspect of the present disclosure, the baffle may be provided with a plurality of hot air guide portions spaced apart from each other in the vehicle width direction.
　この構成によれば、車幅方向の複数箇所において温風を下方へ導くことができるので、空調風の温度がより一層均一化する。 According to this configuration, 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.
　本開示の第６の態様では、前記バッフルには、複数の前記冷風案内部が車幅方向に互いに間隔をあけて設けられていてもよい。 In a sixth aspect of the present disclosure, the baffle may be provided with a plurality of cold air guide portions spaced apart from each other in the vehicle width direction.
　この構成によれば、車幅方向の複数箇所において冷風を上方へ導くことができるので、空調風の温度がより一層均一化する。 According to this configuration, since the cold air can be guided upward at multiple locations in the vehicle width direction, the temperature of the conditioned air becomes even more uniform.
　本開示の第７の態様に係る温風案内部は、上方へ突出する筒状をなしており、車幅方向に隣り合う前記温風案内部の間に前記冷風案内部が設けられていてもよい。 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.
　この構成によれば、温風案内部が筒状であるため、温風の案内方向を精度よく設定できる。 According to this configuration, since the hot air guide section is cylindrical, the hot air guide direction can be set with high precision.
　本開示の第８の態様では、前記冷却器は、その空気通過面が上側へ行くほど車両前側に位置するように傾斜配置され、前記加熱器は、その空気通過面が上側へ行くほど車両前側に位置するように傾斜配置されていてもよい。 In an eighth aspect of the present disclosure, 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
　この構成によれば、空調ケーシングの高さを抑えることができ、車室内でのレイアウト性を向上できる。 According to this configuration, the height of the air conditioning casing can be suppressed, and the layout in the vehicle interior can be improved.
　本開示の第９の態様の前記バッフルは、前記加熱器における車両後側に位置する面と対向するように配置されている。 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.
　この構成によれば、加熱器から車両後方へ向けて流れた温風をバッフルの温風案内部によって効率よく導くことができる。 According to this configuration, 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.
　本開示の第１０の態様に係る空調ケーシングの内部には、２列目シートの乗員及び３列目シートの乗員の足下へ供給される空調風が吹き出すヒート吹出口と、前記３列目シート用ベント吹出口とを開閉する吹出方向切替用ダンパが設けられていてもよい。前記バッフルにおける温風流れ方向下流側端部と、前記吹出方向切替用ダンパとの間には、前記ヒート吹出口と前記３列目シート用ベント吹出口とのうち車両後方側に位置する吹出口に温風を流入可能な間隙流路を形成することもできる。これにより、例えば２列目に供給される空調風の温度と、３列目に供給される空調風の温度との差を低減するための流路を有する空調ケーシングをコンパクトにすることができる。 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.
　本開示の第１１の態様に係る空調ケーシングの内部には、前記加熱器から車両後方に離れた箇所に縦板部が設けられていてもよい。前記縦板部は、前記空調ケーシングの底壁部から上方へ延びるとともに、前記加熱器の車両後側の面と対向するように配置することができる。すなわち、２列目シート用ベント吹出口から空調風が吹き出すベントモード時に冷風案内部を通過する冷風を縦板部によって上方へ案内して加熱器からの受熱を極力避けることができるので、２列目シート用ベント吹出口から吹き出す空調風の温度上昇を抑制できる。 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. In other words, in the vent mode in which conditioned air is blown out from the vent outlet for the second row seat, 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.
　本開示の第１２の態様に係る冷風案内部は、前記バッフルの車幅方向中央部及び車幅方向両側にそれぞれ設けられるとともに、上下方向に延びるように形成することができる。この場合、車幅方向中央部の前記冷風案内部は、車幅方向両側の前記冷風案内部の下側部分に比べて車両前側に位置するように形成することが可能である。この構成によれば、ヒート吹出口側に冷風を案内して温風の流れに当てることができるので、エアミックス性が良好になり、過度な温度上昇を抑制できる。 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. In this case, 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.
　以上説明したように、温風を２列目シート用ベント吹出口へ導く温風案内部と、冷風を３列目シート用ベント吹出口へ導く冷風案内部とをバッフルに設けたので、空調ケーシングを小型化しつつ、２列目シートの乗員及び３列目シートの乗員の快適性を向上させることができる。 As explained above, since 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.
本発明の実施形態に係る車両用空調装置の斜視図である。1 is a perspective view of a vehicle air conditioner according to an embodiment of the present invention. 車両用空調装置が搭載された自動車の内部を示す図である。FIG. 1 is a diagram showing the inside of an automobile equipped with a vehicle air conditioner. 車両用空調装置の左側面図である。FIG. 2 is a left side view of the vehicle air conditioner. 車両用空調装置を後から見た図である。FIG. 2 is a rear view of the vehicle air conditioner. バイレベルモード時の車両用空調装置の断面図である。FIG. 2 is a cross-sectional view of the vehicle air conditioner in bi-level mode. ベントモード時の車両用空調装置の断面図である。FIG. 2 is a cross-sectional view of the vehicle air conditioner in vent mode. バッフルの斜視図である。It is a perspective view of a baffle. バッフルの正面図である。It is a front view of a baffle. バッフルの平面図である。It is a top view of a baffle. 図８におけるX－X線断面図である。9 is a sectional view taken along line XX in FIG. 8. FIG. 図８におけるXI－XI線断面図である。9 is a sectional view taken along the line XI-XI in FIG. 8. FIG.
　以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。 Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Note that the following description of preferred embodiments is essentially just an example, and is not intended to limit the present invention, its applications, or its uses.
　図１は、本発明の実施形態に係る車両用空調装置１を示すものである。この車両用空調装置１は、図２に一部を示す自動車１００の車室Ｒ内に配設され、車室Ｒ内を空調する装置である。この実施形態の説明では、車両前側を単に前といい、車両後側を単に後といい、車両左側を単に左といい、車両右側を単に右というものとする。 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. In the description of this embodiment, 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, and the right side of the vehicle is simply referred to as the right.
　自動車１００の車室Ｒ内の車両前部には、車幅方向（左右方向）に離間した運転席及び助手席からなる前席シート１０１が配設されている。自動車１００の車室Ｒ内における前席シート（１列目シート）１０１の後方には、２列目シート１０２が配設され、さらに２列目シート１０２の後方には３列目シート１０３が配設されている。つまり、この自動車１００は、前席シート１０１、２列目シート１０２及び３列目シート１０３を備えた車両である。 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. In other words, this automobile 100 is a vehicle that includes a front seat 101, a second row seat 102, and a third row seat 103.
　自動車１００の車室Ｒ内には、前席シート１０１の前方にインストルメントパネルＰが配設されている。このインストルメントパネルＰの内部には、上記車両用空調装置１とは別の前席用空調装置２００が配設されている。前席用空調装置２００は、主に前席シート１０１の乗員へ供給する空調風及びフロントウインドガラスＧの内面に供給する空調風を生成する。図示しないが、前席用空調装置２００は、冷却器や加熱器、エアミックスダンパ、吹出方向切替ダンパ等を有している。尚、図２ではダクト類を省略している。 In the cabin R of the automobile 100, an instrument panel P is arranged in front of the front seat 101. Inside this instrument panel P, a front seat air conditioner 200 separate from the vehicle air conditioner 1 is disposed. 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. Although not shown, 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.
　車両用空調装置１は、２列目及び３列目シート１０２、１０３の乗員へ供給する後席用空調装置であり、前席用空調装置２００から後方に離れた場所に配設される。車両用空調装置１を配設する場所の一例としては、例えば運転席と助手席との間を挙げることができる。車両用空調装置１を覆うカバー（図示せず）が車室Ｒに設けられている。車両用空調装置１は、送風ユニット２と空調ユニット３とを備えている。 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.
　図１に示すように、送風ユニット２は、空調用空気を空調ユニット３へ送風するためのユニットであり、送風ケーシング２０と、ファン２１と、ファン２１を回転駆動するためのモータ（図示せず）とを備えている。送風ケーシング２０の左側壁部には、空調用空気を吸い込む吸込口２０ａが形成されている。吸込口２０ａは車室内に開口しており、車室内の空気（内気）を吸い込むものである。ファン２１は、送風ケーシング２０の内部に収容されたシロッコファンであり、その回転軸は左右方向に延びている。送風ケーシング２０の右側壁部に上記モータが固定されており、このモータの出力軸にファン２１が固定されている。ファン２１の回転により、吸込口２０ａから送風ケーシング２０の内部に吸い込まれた空調用空気が後方へ向けて送風されるようになっている。 As shown in FIG. 1, 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.
　図３にも示すように、空調ユニット３は送風ユニット２の後方に配置されている。空調ユニット３は、空調ケーシング３０を備えている。図１に示すように、空調ケーシング３０は、当該空調ケーシング３０の左側部分を構成する左側部材３０ａと、当該空調ケーシング３０の右側部分を構成する右側部材３０ｂとを有している。左側部材３０ａと右側部材３０ｂは、樹脂製であり、互いに締結部材により締結されて一体化されている。空調ケーシング３０の前部に送風ケーシング２０の後部が接続されて一体化されている。 As shown in FIG. 3, the air conditioning unit 3 is placed behind the blower unit 2. The air conditioning unit 3 includes an air conditioning casing 30. As shown in FIG. 1, 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.
　空調ケーシング３０は前後方向の寸法が上下方向の寸法よりも長く設定されており、全体として送風ケーシング２０よりも前後方向に長い形状を有している。図５に示すように、空調ケーシング３０の前壁部の上下方向中間部には、空調用空気を当該空調ケーシング３０の内部に導入するための空気導入口３０ｃが形成されている。空気導入口３０ｃには、送風ケーシング２０の後部に設けられている空気吐出部２０ｂ（図１及び図３に示す）が接続されており、送風ユニット２から送風された空調用空気は、空調ケーシング３０の前側から導入されて後側へ向かう流れを形成する。 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.
　図５に示すように、空調ユニット３は、送風ユニット２により導入された空調用空気を冷却して冷風を生成する冷却器３１と、空調用空気を加熱して温風を生成する加熱器３２とを備えている。冷却器３１及び加熱器３２は、空調ケーシング３０に収容されており、加熱器３２は冷却器３１の空気流れ方向下流側に配置されている。 As shown in FIG. 5, 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.
　冷却器３１は、例えばエバポレータ等で構成されている。冷却器３１がエバポレータで構成されている場合、図示しないが、自動車１００には、冷媒を圧縮するコンプレッサ、凝縮器、膨張弁等が搭載されている。これら機器により冷凍サイクルが構成されている。 The cooler 31 is composed of, for example, an evaporator. When the cooler 31 is constituted by 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.
　加熱器３２は、例えばヒータコア等で構成されている。加熱器３２がヒータコアで構成されている場合、発熱源であるエンジンやモータ、インバータ等を冷却するための冷却水が加熱器３２に流入するようになっている。また、加熱器３２は、例えば上記凝縮器等で構成されていてもよいし、通電によって発熱する電気式ヒータ等で構成されていてもよい。加熱器３２の上下方向の寸法は、冷却器３１の上下方向の寸法よりも短く設定されている。また、加熱器３２の空気通過方向の寸法は、冷却器３１の空気通過方向の寸法よりも短く設定されている。 The heater 32 is composed of, for example, a heater core. 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.
　空調ユニット３の内部には、冷風生成通路Ｒ１と、温風生成通路Ｒ２と、バイパス通路Ｒ３と、エアミックス空間Ｒ４とが形成されている。冷風生成通路Ｒ１は、空調ユニット３の内部において前側部分に形成されている。冷風生成通路Ｒ１の上流端は、空気導入口３０ｃに接続されている。冷風生成通路Ｒ１は、空気導入口３０ｃへの接続部分から後方へ向けて延びている。冷風生成通路Ｒ１の上下方向の寸法は、後側へ行くほど長くなっており、冷風生成通路Ｒ１の断面積が後側に向かって次第に拡大している。 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.
　冷風生成通路Ｒ１における空気導入口３０ｃへの接続部分から後方に離れた部分には、冷却器３１が配置されている。冷却器３１は、空調用空気が通過する空気通過面３１ａを有している。この空気通過面３１ａが上側へ行くほど前側に位置するように、冷却器３１が傾斜配置されている。冷風生成通路Ｒ１を流通する空調用空気は、冷却器３１の前方から当該冷却器３１を通過して後方へ流れ、冷却器３１を通過する間に冷媒等と熱交換することによって冷却される。 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.
　温風生成通路Ｒ２は、空調ユニット３の内部において冷風生成通路Ｒ１の後方に形成されている。温風生成通路Ｒ２の上流端は、冷風生成通路Ｒ１の下流端の下側部分に連通している。したがって、温風生成通路Ｒ２には、冷風生成通路Ｒ１を流通した空調用空気が流入する。温風生成通路Ｒ２は後側へ向けて延びており、温風生成通路Ｒ２の前後方向の長さは、冷風生成通路Ｒ１の前後方向の長さよりも短く設定されている。温風生成通路Ｒ２の上下方向の寸法は、冷風生成通路Ｒ１の上下方向の寸法よりも短く設定されている。 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.
　温風生成通路Ｒ２には、加熱器３２が配置されている。加熱器３２は、空調用空気が通過する空気通過面３２ａを有している。この空気通過面３２ａが上側へ行くほど前側に位置するように、加熱器３２が傾斜配置されている。温風生成通路Ｒ２を流通する空調用空気は、加熱器３２の前方から当該加熱器３２を通過して後方へ流れ、加熱器３２を通過する間に冷却水等と熱交換することによって加熱される。 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.
　加熱器３２の空気通過面３２ａは、２列目シート用ベント吹出口３０ｄよりも後下方、且つ３列目シート用ベント吹出口３０ｅ及びヒート吹出口３０ｆよりも上方を指向する方向に傾斜して設けられる。これにより、３列目シート用ベント吹出口３０ｅ及びヒート吹出口３０ｆへの流通抵抗を低減することができるとともに、２列目シート用ベント吹出口３０ｄを前方に配置することによって空調ケーシング３０を小型化できる。 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. As a result, 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
　バイパス通路Ｒ３は、空調ユニット３の内部において冷風生成通路Ｒ１の後方に形成され、温風生成通路Ｒ２の上方に位置している。バイパス通路Ｒ３の上流端は、冷風生成通路Ｒ１の下流端の上側部分に連通している。したがって、バイパス通路Ｒ３には、冷風生成通路Ｒ１を流通した空調用空気が流入する。バイパス通路Ｒ３は加熱器３２の上方を後側へ向けて延びている。バイパス通路Ｒ３の前後方向の長さは、冷風生成通路Ｒ１の前後方向の長さよりも短く設定されている。また、バイパス通路Ｒ３の上下方向の寸法は、温風生成通路Ｒ２の上下方向の寸法よりも短く設定されている。 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.
　エアミックス空間Ｒ４は、冷風及び温風を混合するための空間であり、空調ユニット３の内部において後側かつ上部に形成されている。バイパス通路Ｒ３の下流端は、エアミックス空間Ｒ４に対して前側から接続されており、バイパス通路Ｒ３を流通した空調用空気は温風生成通路Ｒ２をバイパスし、エアミックス空間Ｒ４の前方から当該エアミックス空間Ｒ４に後方へ向けて流入する。したがって、空調ケーシング３０の内部には、冷風が加熱器３２の上方を後側へ流れてエアミックス空間Ｒ４に流入するようにバイパス通路（空気通路）Ｒ３が形成されている。 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.
　このエアミックス空間Ｒ４は、温風生成通路Ｒ２の上方に位置しているので、温風生成通路Ｒ２の下流端は、エアミックス空間Ｒ４に対して下側から接続されている。したがって、温風生成通路Ｒ２を流通した空調用空気はエアミックス空間Ｒ４の下方から当該エアミックス空間Ｒ４に上方へ向けて流入する。 Since this air mix space R4 is located above the hot air generation passage R2, the downstream end of the hot air generation passage R2 is connected to the air mix space R4 from below. Therefore, the air conditioning air that has passed through the hot air generation passage R2 flows upward into the air mix space R4 from below the air mix space R4.
　エアミックス空間Ｒ４に流入した冷風と温風とを衝突させて混合することで所望温度の空調風が生成される。空調風の温度は、エアミックス空間Ｒ４における冷風と温風との混合割合によって調整できる。エアミックス空間Ｒ４に流入した冷風の割合が増えれば、空調風の温度が低下し、一方、エアミックス空間Ｒ４に流入した温風の割合が増えれば、空調風の温度が上昇する。 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.
　空調ユニット３は、冷風と温風とのエアミックス空間Ｒ４における混合割合を変更するためのエアミックスダンパ３３を備えている。エアミックスダンパ３３は、空調ケーシング３０に収容されている。エアミックスダンパ３３として使用可能なダンパは、どのような形式であってもよく、例えばバタフライタイプ、ロータリタイプ、ルーバタイプ等を挙げることができるが、本実施形態では、スライドダンパを使用している。 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. .
　すなわち、エアミックスダンパ３３は、冷風生成通路Ｒ１の下流端の上側部分（バイパス通路Ｒ３に連通する部分）と、冷風生成通路Ｒ１の下流端の下側部分（温風生成通路Ｒ２に連通する部分）との開度を変更可能に構成されている。より具体的には、エアミックスダンパ３３は、上下方向にスライド可能に、空調ケーシング３０の内面に支持されている。駆動装置３４によってエアミックスダンパ３３が上下方向に駆動される。 That is, 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.
　エアミックスダンパ３３は、例えば板状をなしており、その一部に開口が形成されている。エアミックスダンパ３３の動作は特に限定されるものではないが、エアミックスダンパ３３を上方へスライドさせると、冷風生成通路Ｒ１の下流端の上側部分の開口面積が小さくなる一方、冷風生成通路Ｒ１の下流端の下側部分の開口面積が大きくなるように動作させることができる。反対に、エアミックスダンパ３３を下方へスライドさせると、冷風生成通路Ｒ１の下流端の上側部分の開口面積が大きくなる一方、冷風生成通路Ｒ１の下流端の下側部分の開口面積が小さくなる。この場合、エアミックスダンパ３３を上端位置までスライドさせると、冷風生成通路Ｒ１の下流端の上側部分が全閉になる一方、冷風生成通路Ｒ１の下流端の下側部分が全開になり、また、エアミックスダンパ３３を下端位置までスライドさせると、冷風生成通路Ｒ１の下流端の上側部分が全開になる一方、冷風生成通路Ｒ１の下流端の下側部分が全閉になる。つまり、エアミックスダンパ３３の動作により、エアミックス空間Ｒ４に流入する冷風の量及び温風の量を変更できる。 The air mix damper 33 has a plate shape, for example, and has an opening formed in a part thereof. Although 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. In this case, 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.
　図示しないが、エアミックスダンパがバタフライタイプやルーバタイプのものであれば、エアミックスダンパの回動角度によってエアミックス空間Ｒ４に流入する冷風の量及び温風の量を変更できる。エアミックスダンパがロータリタイプのものであれば、エアミックスダンパの回動角度によってエアミックス空間Ｒ４に流入する冷風の量及び温風の量を変更できる。 Although not shown, if 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.
　空調ケーシング３０の後側の上部には、２列目シート１０２の乗員の上半身へ供給される空調風が吹き出す２列目シート用ベント吹出口３０ｄが形成されている。２列目シート用ベント吹出口３０ｄは上方に向けて開口している。２列目シート用ベント吹出口３０ｄの形状は、左右方向に長い形状となっている。エアミックス空間Ｒ４の上部に２列目シート用ベント吹出口３０ｄが連通しており、エアミックス空間Ｒ４の空気が２列目シート用ベント吹出口３０ｄへ向けて流通可能になっている。２列目シート用ベント吹出口３０ｄには、図示しないダクトが接続されており、このダクトにより空調風を所望の方向へ導くようにしている。 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.
　２列目シート用ベント吹出口３０ｄの下方には、加熱器３２が位置している。この加熱器３２と２列目シート用ベント吹出口３０ｄとは、上下方向に離れており、加熱器３２と２列目シート用ベント吹出口３０ｄとの間に後述するバッフル５０の一部が位置付けられている。 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
　空調ケーシング３０の後側の下部には、３列目シート１０３の乗員の上半身へ供給される空調風が吹き出す３列目シート用ベント吹出口３０ｅが形成されている。また、空調ケーシング３０の後側の下部には、２列目シート１０２の乗員及び３列目シート１０３の乗員の足下へ供給される空調風が吹き出すヒート吹出口３０ｆが形成されている。また、空調ケーシング３０の後側には、後方へ向けて膨出する膨出部３０Ａが形成されている。膨出部３０Ａの内部における上側には、エアミックス空間Ｒ４の下側部分が形成されている。したがって、膨出部３０Ａの内部における上側において冷風と温風との混合が可能になっている。 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. In addition, 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. Further, 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.
　膨出部３０Ａの内部における下側には、３列目シート用ベント通路Ｒ５と、後席用ヒート通路Ｒ６とが形成されるとともに、３列目シート用ベント通路Ｒ５及び後席用ヒート通路Ｒ６を仕切るための仕切部３８が形成されている。３列目シート用ベント通路Ｒ５は、膨出部３０Ａの内部の後側を上下方向に延びており、３列目シート用ベント通路Ｒ５の上端部（上流端）は、エアミックス空間Ｒ４の下部に連通している。後席用ヒート通路Ｒ６は、膨出部３０Ａの内部の前側を上下方向に延びており、後席用ヒート通路Ｒ６の上端部（上流端）は、エアミックス空間Ｒ４の下部において３列目シート用ベント通路Ｒ５よりも前側部分に連通している。 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.
　３列目シート用ベント通路Ｒ５の下端部（下流端）に３列目シート用ベント吹出口３０ｅが連通している。また、後席用ヒート通路Ｒ６の下端部（下流端）にヒート吹出口３０ｆが連通している。ヒート吹出口３０ｆと３列目シート用ベント吹出口３０ｅとは前後方向に並んでおり、具体的には、ヒート吹出口３０ｆが３列目シート用ベント吹出口３０ｅよりも前側に位置している。 A third-row seat vent outlet 30e communicates with the lower end (downstream end) of the third-row seat vent passage R5. In addition, 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. .
　３列目シート用ベント吹出口３０ｅの位置は、加熱器３２の下部よりも後方とされている。ヒート吹出口３０ｆ及び３列目シート用ベント吹出口３０ｅは下方に向けて開口している。ヒート吹出口３０ｆ及び３列目シート用ベント吹出口３０ｅの形状は、左右方向に長い形状となっている。３列目シート用ベント吹出口３０ｅは、ヒート吹出口３０ｆよりも高い位置に開口しており、この３列目シート用ベント吹出口３０ｅには３列目シート１０３の近傍まで延びるダクト（図示せず）が接続されている。また、ヒート吹出口３０ｆには、２列目シート１０２の乗員の足下近傍及び３列目シート１０３の乗員の足下近傍まで延びる足下ダクト（図示せず）が接続されている。 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. Further, 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.
　空調ケーシング３０の内部には、加熱器３２から後方に離れた箇所に縦板部３５が設けられている。縦板部３５は、空調ケーシング３０の底壁部から上方へ延びており、加熱器３２の後側の面と対向するように配置される。加熱器３２を通過した空調用空気は、縦板部３５によって上方、即ちエアミックス空間Ｒ４へ向けて案内される。 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.
　縦壁部３５が加熱器３２の後側の面と対向するように配置されているので、ベントモード時に冷風案内部５２を通過する冷風を縦板部３５によって上方へ案内して加熱器３２からの受熱を極力避けることができる。これにより、２列目シート用ベント吹出口３０ｄから吹き出す空調風の温度上昇を抑制できる。 Since 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.
　空調ユニット３は、上側ダンパ３６と下側ダンパ３７とを備えている。上側ダンパ３６と下側ダンパ３７とは、空調風の吹出方向を切り替えるための吹出方向切替用ダンパである。上側ダンパ３６は、空調ケーシング３０の内部において後側かつ上部に収容され、また、下側ダンパ３７は、空調ケーシング３０の内部において後側かつ下部に収容されている。上側ダンパ３６及び下側ダンパ３７は、図示しない駆動機構によって駆動される。上側ダンパ３６と下側ダンパ３７を連動させてもよいし、別々に駆動してもよい。上側ダンパ３６及び下側ダンパ３７の駆動制御は、従来から周知の手法を用いることができ、乗員の操作によって乗員が所望する吹出モードとなるように上側ダンパ３６及び下側ダンパ３７を駆動してもよいし、オートエアコン制御のロジックに従って上側ダンパ３６及び下側ダンパ３７を駆動してもよい。 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. Alternatively, the upper damper 36 and the lower damper 37 may be driven according to the logic of automatic air conditioner control.
　上側ダンパ３６は、２列目シート用ベント吹出口３０ｄを開閉するためのダンパであり、２列目シート用ベントダンパである。すなわち、上側ダンパ３６は、左右方向に延びる回動軸３６ａと、当該回動軸３６ａから径方向へ延びる２枚の閉塞板部３６ｂとを備えたバタフライタイプのダンパである。回動軸３６ａは空調ケーシング３０の左右両側壁部に対して回動可能に支持されている。図５及び図６に示す状態では、上側ダンパ３６が２列目シート用ベント吹出口３０ｄを開放している。図５に示すバイレベルモードでは、図６に示すベントモードに比べて上側ダンパ３６による２列目シート用ベント吹出口３０ｄの開度が小さくなる。図示しないが、上側ダンパ３６後へ向けて回動させることで、２列目シート用ベント吹出口３０ｄを全閉状態にすることもできる。 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.
　下側ダンパ３７は、３列目シート用ベント吹出口３０ｅ及びヒート吹出口３０ｆを開閉するためのダンパであり、３列目シート用ダンパである。下側ダンパ３７の配設位置は、膨出部３０Ａの内部であり、３列目シート用ベント通路Ｒ５の上流端を開閉することにより、間接的に、３列目シート用ベント吹出口３０ｅを開閉することができ、また、後席用ヒート通路Ｒ６の上流端を開閉することにより、間接的に、ヒート吹出口３０ｆを開閉することができる。 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.
　すなわち、下側ダンパ３７は、左右方向に延びる回動軸３７ａと、当該回動軸３７ａから径方向に離れた所に位置する閉塞板部３７ｂとを備えたロータリタイプのダンパである。回動軸３７ａは空調ケーシング３０の左右両側壁部に対して回動可能に支持されている。閉塞板部３７ｂは、回動軸３７ａに対して支持板部３７ｃを介して支持される。支持板部３７ｃは、回動軸３７ａから径方向に突出している。支持板部３７ｃの突出方向先端部が閉塞板部３７ｂに接続されている。 That is, 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.
　図５に示すバイレベルモードでは、３列目シート用ベント吹出口３０ｅ及びヒート吹出口３０ｆの両方を開く回動位置となるまで、下側ダンパ３７が回動する。一方、図６に示すベントモードでは、ヒート吹出口３０ｆを全閉にし、３列目シート用ベント吹出口３０ｅを全開にする回動位置となるまで、下側ダンパ３７が回動する。図示しないが、ヒート吹出口３０ｆを全開にし、３列目シート用ベント吹出口３０ｅを全閉にする回動位置となるまで、下側ダンパ３７を回動させることもできる。 In the bilevel mode shown in FIG. 5, 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. On the other hand, in 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. Although not shown, 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.
　図５及び図６に示すように、空調ユニット３は、冷風及び温風を案内するバッフル５０を備えている。バッフル５０は、例えば樹脂材で構成されており、空調ケーシング３０の内部においてエアミックス空間Ｒ４に収容されている。バッフル５０の左側部が空調ケーシング３０の左側壁部の内面に固定され、またバッフル５０の右側部が空調ケーシング３０の右側壁部の内面に固定されている。 As shown in FIGS. 5 and 6, 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.
　より具体的には、バッフル５０は、下側ダンパ３７の上方において加熱器３２の後側の面と対向するように配置される。また、縦板部３５から上方に離れたところにバッフル５０が位置しており、縦板部３５によって上方へ案内された温風がバッフル５０へ向けて流れるようになっている。 More specifically, 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.
　図７～図９に示すように、バッフル５０は全体として左右方向に長い形状をなしており、空調ケーシング３０の内部において左端部近傍から右端部近傍に亘って配設される。バッフル５０には、温風を２列目シート用ベント吹出口３０ｄへ導く複数の温風案内部５１と、加熱器３２の上方を後側へ流れた冷風（バイパス通路Ｒ３を流れた冷風）を３列目シート用ベント吹出口３０ｅへ導く複数の冷風案内部５２とが設けられている。冷風案内部５２は、加熱器３２の上方を後側へ流れた冷風を同時にヒート吹出口３０ｆへも導く部分である。 As shown in FIGS. 7 to 9, 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.
　この実施形態では、４つの温風案内部５１が車幅方向に互いに間隔をあけてバッフル５０に設けられており、また、５つの冷風案内部５２が車幅方向に互いに間隔をあけてバッフル５０に設けられている。図示しないが、温風案内部５１の数は４つに限られるものではなく、３つ以下、５つ以上の任意の数であってもよい。また、冷風案内部５２の数は５つに限られるものではなく、４つ以下、６つ以上の任意の数であってもよい。 In this embodiment, four 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.
　４つの温風案内部５１のうち、２つがバッフル５０の左右方向中央部よりも左側に配置され、残りの２つがバッフル５０の左右方向中央部よりも右側に配置されている。バッフル５０の左側の２つの温風案内部５１の間隔と、バッフル５０の右側の２つの温風案内部５１の間隔とは等しくなっている。また、バッフル５０の中央部寄りで隣合う２つの温風案内部５１の間隔は、左側の２つの温風案内部５１の間隔よりも広く設定されている。 Of the four hot air guide parts 51, two 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.
　図１０に示すように、温風案内部５１は、上方へ突出する筒状をなしており、その上端部には温風が流出する温風流出口５１ａが上方に向けて開口している。温風流出口５１ａは、上側ダンパ３６の回動軸３６ａの後方に位置している。上側ダンパ３６が２列目シート用ベント吹出口３０ｄを全閉にする位置まで回動すると、上側ダンパ３６の後側に位置する閉塞板部３６ｂによって温風流出口５１ａが閉塞されるようになっている。 As shown in FIG. 10, 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. When the upper damper 36 rotates to the position where the second row seat vent outlet 30d is fully closed, 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.
　一方、温風案内部５１を構成している筒状部分の下端部は、下方に向けて開口している。温風案内部５１の前後方向の寸法は、下側へ行くほど長くなるように設定されており、温風流出口５１ａの前後方向の寸法が最も短くなっている。このように、温風案内部５１を構成している筒状部分の断面積が下側へ行くほど拡大しているので、温風を温風案内部５１の下方から当該温風案内部５１の内部へ導入し易くなる。 On the other hand, 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.
　左端に位置する温風案内部５１及び右端に位置する温風案内部５１には、後方へ突出する突出部５１ｂが形成されている。突出部５１ｂは、左右方向に延びる板状をなしている。図５に示すように、突出部５１ｂの先端部は、膨出部３０Ａの内面に当接するようになっている。 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.
　図７及び図８に示すように、５つの冷風案内部５２のうち、３つの冷風案内部５２は車幅方向に隣り合う温風案内部５１の間に設けられており、残りの２つの冷風案内部５２はバッフル５０の左端部及び右端部にそれぞれ設けられている。冷風案内部５２は上下方向に延びる板状をなしており、後方へ向けて湾曲している。バッフル５０の左右方向中央部（車幅方向中央部）に位置する冷風案内部５２の幅（左右方向の寸法）は、他の冷風案内部５２（車幅方向両側に位置する冷風案内部）の幅に比べて広くなっている。バッフル５０の左右方向中央部に位置する冷風案内部５２の下側部分は、他の冷風案内部５２の下側部分に比べて前側に位置するように形成されている。これにより、左右方向中央部に位置する冷風案内部５２によって冷風をヒート吹出口３０ｆ側に案内して温風の流れに当てることができるので、エアミックス性が良好になり、過度な温度上昇を抑制できる。 As shown in FIGS. 7 and 8, among the five cold air guide sections 52, three cold air guide sections 52 are provided between the hot air guide sections 51 adjacent to each other in the vehicle width direction, and the remaining two cold air guide sections 52 are provided between the hot air guide sections 51 adjacent to each other in the vehicle width direction. The guide portions 52 are provided at the left end and right end of the baffle 50, respectively. 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). It is wider than its width. 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. As a result, 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.
　冷風案内部５２の下端部は、縦板部３５の上端部よりも上方かつ後方に位置している。また、冷風案内部５２の上端部は、加熱器３２の上端部まで延びるように形成されており、上側ダンパ３６の回動軸３６ａから前方に離れている。従って、冷風案内部５２は、加熱器３２の上端部から、縦板部３５の上端部と下側ダンパ３７の回動軸３７ａとの間に向かって延びることになる。また、冷風案内部５２は、加熱器３２の後側の面の上側部分と所定の間隔をあけて対向するように配置される。冷風案内部５２の上端部と、温風案内部５１の上端部との高さを比較すると、温風案内部５１の上端部の方が上に位置している。 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.
　また、バッフル５０における温風流れ方向下流側端部（バッフル５０の下端部）と、下側ダンパ３７との間には、ヒート吹出口３０ｆと３列目シート用ベント吹出口３０ｅとのうち車両後方側に位置する吹出口に温風を流入可能な間隙流路Ｒ７が形成される。すなわち、バッフル５０における温風流れ方向下流側端部は、下側ダンパ３７の回動軸３７ａの外周面に対して上下方向に所定の隙間をあけた状態で対向するように配置されている。これにより、バッフル５０の下端部と、下側ダンパ３７の回動軸３７ａの外周面との間には隙間流路Ｒ７が形成される。この隙間流路Ｒ７を利用して温風を３列目シート用ベント吹出口３０ｅ側へ流入させることができるので、２列目に供給される空調風の温度と、３列目に供給される空調風の温度との差を低減可能な空調ケーシング３０をコンパクトにすることができる。 Further, between the downstream end of the baffle 50 in the hot air flow direction (the lower end of the baffle 50) and the lower damper 37, there is a heat outlet 30f and a vent outlet 30e for the third row seat. 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. Using this gap flow path R7, 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.
　また、バッフル５０の左右方向中央部に位置する冷風案内部５２の下流側端部は、下側ダンパ３７の回動軸３７ａよりも前方に位置している。これにより、ヒート吹出口３０ｆ側に冷風を案内することが可能になる。 Furthermore, the 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. Thereby, it becomes possible to guide the cold air to the heat outlet 30f side.
　（バッフルの作用）
　上記のように構成された空調ユニット３では、２列目シート用ベント吹出口３０ｄが空調ケーシング３０の上部に、３列目シート用ベント吹出口３０ｅが空調ケーシング３０の下部にそれぞれ形成されていて、２列目シート用ベント吹出口３０ｄと３列目シート用ベント吹出口３０ｅとが上下方向に大きく離れているので、２列目シート用ベント吹出口３０ｄから吹き出す空調風の温度と、３列目シート用ベント吹出口３０ｅから吹き出す空調風の温度との差が大きくなる可能性がある。具体的には、冷却器３１を通過した冷風が加熱器３２の上方を後方へ向けて流れているので、２列目シート用ベント吹出口３０ｄから吹き出す空調風の温度が低くなり、また加熱器３２を通過した温風が下側を流れているので、３列目シート用ベント吹出口３０ｅから吹き出す空調風の温度が高くなる場合がある。 (Effect of baffle)
In the air conditioning unit 3 configured as described above, 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. , since 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. Specifically, since the cold air that has passed through the cooler 31 flows backward above the heater 32, 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.
　本実施形態では、バッフル５０を設けることにより、２列目シート用ベント吹出口３０ｄから吹き出す空調風の温度と、３列目シート用ベント吹出口３０ｅから吹き出す空調風の温度との差を小さくするとともに、ヒート吹出口３０ｆから吹き出す空調風の極端な温度上昇を抑制している。 In this embodiment, 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.
　まず、図５に示すバイレベルモードについて説明する。バイレベルモードでは、空調風が２列目シート用ベント吹出口３０ｄ、３列目シート用ベント吹出口３０ｅ及びヒート吹出口３０ｆから吹き出す。このバイレベルモード時には、温風生成通路Ｒ２からエアミックス空間Ｒ４に流入した温風が、バッフル５０の温風案内部５１を構成している筒状部分の下端部から当該筒状部分に流入する。温風案内部５１が上方へ向けて２列目シート用ベント吹出口３０ｄへ向けて延びているので、温風流出口５１ａから吹き出した温風は２列目シート用ベント吹出口３０ｄへ供給される。 First, the bilevel mode shown in FIG. 5 will be explained. In the bi-level mode, 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. In this bilevel mode, 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. . Since 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. .
　また、膨出部３０Ａの後壁部の内面と、バッフル５０の冷風案内部５２との間には下方へ延びる通路が形成されることになり、冷却器３１からエアミックス空間Ｒ４に流入した冷風が、膨出部３０Ａの後壁部の内面と、バッフル５０の冷風案内部５２との間に流入する。冷風案内部５２は下方へ向けて延びているので、冷風が３列目シート用ベント吹出口３０ｅ及びヒート吹出口３０ｆへ供給される。よって、２列目シート用ベント吹出口３０ｄから吹き出す空調風の温度と、３列目シート用ベント吹出口３０ｅから吹き出す空調風の温度との差が小さくなるとともに、ヒート吹出口３０ｆから吹き出す空調風の極端な温度上昇が抑制される。 Further, 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.
　次に、図６に示すベントモードについて説明する。ベントモードでは、空調風が２列目シート用ベント吹出口３０ｄ及び３列目シート用ベント吹出口３０ｅから吹き出す。このベントモード時には、温風案内部５１が上方へ向けて２列目シート用ベント吹出口３０ｄへ向けて延びているので、温風流出口５１ａから吹き出した温風は２列目シート用ベント吹出口３０ｄへ供給される。 Next, the vent mode shown in FIG. 6 will be explained. 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. In this vent mode, 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.
　また、冷却器３１からエアミックス空間Ｒ４に流入した冷風は、冷風案内部５２は下方へ向けて延びているので、冷風が３列目シート用ベント吹出口３０ｅへ供給されるとともに、ヒート吹出口３０ｆが下に位置しているので、このヒート吹出口３０ｆにも供給される。このとき、ヒート吹出口３０ｆは下側ダンパ３７により閉塞されているので、ヒート吹出口３０ｆに向けて流れた冷風は上方へ向きを変えて流れようとする。ヒート吹出口３０ｆの上方には、加熱器３２を通過した温風が流れているので、向きを変えた冷風が温風に当たり、当該温風を押し上げる。これにより、２列目シート用ベント吹出口３０ｄへ向けて温風を確実に供給することができるので、２列目シート用ベント吹出口３０ｄから吹き出す空調風の温度と、３列目シート用ベント吹出口３０ｅから吹き出す空調風の温度との差が小さくなる。 Further, since 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. As a result, warm air can be reliably supplied to the second row seat vent outlet 30d, so that the temperature of the conditioned air blown from the second row seat vent outlet 30d and the third row seat vent The difference in temperature from the temperature of the conditioned air blown out from the outlet 30e becomes smaller.
　（実施形態の効果）
　以上説明したように、この実施形態によれば、温風を２列目シート用ベント吹出口３０ｄへ導く温風案内部５１と、冷風を３列目シート用ベント吹出口３０ｅへ導く冷風案内部５２とをバッフル５０に設けたので、空調ケーシング３０を小型化しつつ、２列目シートの乗員及び３列目シートの乗員の快適性を向上させることができる。 (Effects of embodiment)
As described above, according to this embodiment, 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.
　また、冷風案内部５２により、冷風をヒート吹出口３０ｆへも案内することができるので、ヒート吹出口３０ｆから吹き出す空調風の極端な温度上昇を抑制でき、乗員の快適性がより一層向上する。 Furthermore, since 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.
　上述の実施形態はあらゆる点で単なる例示に過ぎず、限定的に解釈してはならない。さらに、特許請求の範囲の均等範囲に属する変形や変更は、全て本発明の範囲内のものである。 The above-described embodiments are merely illustrative in all respects and should not be construed in a limiting manner. Furthermore, all modifications and changes that come within the scope of equivalents of the claims are intended to be within the scope of the present invention.
　以上説明したように、本発明に係る車両用空調装置は、例えば２列目シート及び３列目シートを備えた自動車に適用できる。 As explained above, 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.
１　　　　　　車両用空調装置
３０　　　　　空調ケーシング
３０ｄ　　　　２列目シート用ベント吹出口
３０ｅ　　　　３列目シート用ベント吹出口
３０ｆ　　　　ヒート吹出口
３１　　　　　冷却器
３２　　　　　加熱器
３３　　　　　エアミックスダンパ
５０　　　　　バッフル
５１　　　　　温風案内部
５２　　　　　冷風案内部
Ｒ４　　　　　エアミックス空間
Ｒ７　　　　　隙間流路
１００　　　　自動車
１０２　　　　２列目シート
１０３　　　　３列目シート 1 Vehicle air conditioner 30 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

Claims (12)

  1. 　運転席及び助手席の車両後方に配設された２列目シートと該２列目シートの車両後方に配設された３列目シートとを備えた自動車の車室内に配設される車両用空調装置において、
    　空調用空気を冷却して冷風を生成する冷却器と、
    　空調用空気を加熱して温風を生成する加熱器と、
    　前記冷却器及び前記加熱器を収容するとともに、前記冷風及び前記温風を混合するエアミックス空間が内部に形成された空調ケーシングと、
    　前記空調ケーシングに収容され、前記冷風と前記温風との前記エアミックス空間における混合割合を変更するエアミックスダンパと、
    　前記空調ケーシングの車両後側の上部に形成され、２列目シートの乗員の上半身へ供給される空調風が吹き出す２列目シート用ベント吹出口と、
    　前記空調ケーシングの前記加熱器よりも車両後側の下部に形成され、３列目シートの乗員の上半身へ供給される空調風が吹き出す３列目シート用ベント吹出口と、
    　前記空調ケーシングに収容され、前記冷風及び前記温風を案内するバッフルとを備え、
    　前記空調ケーシングの車両前側から後側へ向けて空調用空気が導入され、前記冷却器の空気流れ方向下流側に前記加熱器が配置され、
    　前記空調ケーシングの内部には、前記冷風が前記加熱器の上方を車両後側へ流れて前記エアミックス空間に流入するように空気通路が形成され、
    　前記バッフルは、前記空調ケーシングの内部における前記エアミックス空間に配置され、
    　前記バッフルには、前記温風を前記２列目シート用ベント吹出口へ導く温風案内部と、前記加熱器の上方を車両後側へ流れた前記冷風を前記３列目シート用ベント吹出口へ導く冷風案内部とが設けられている車両用空調装置。     For use in a vehicle installed in the interior of an automobile, which is equipped with a second row seat located behind the driver's seat and passenger seat, and a third row seat located behind the second row seat. In air conditioning equipment,
    a cooler that cools air conditioning air to generate cold air;
    a heater that heats air conditioning air to generate warm air;
    an air conditioning casing that accommodates the cooler and the heater and has an air mix space formed therein for mixing the cold air and the warm air;
    an air mix damper that is housed in the air conditioning casing and changes the mixing ratio of the cold air and the warm air in the air mix space;
    a second-row seat vent outlet formed in the upper part of the vehicle rear side of the air conditioning casing, from which conditioned air to be supplied to the upper body of a second-row seat occupant is blown;
    a third-row seat vent outlet formed in a lower part of the air-conditioning casing on the rear side of the vehicle than the heater, and from which conditioned air to be supplied to the upper body of a third-row seat occupant is blown;
    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 to the rear side of the air conditioning casing, and the heater is disposed downstream of the cooler in the air flow direction,
    An air passage is formed inside the air conditioning casing so that the cold air flows above the heater toward the rear of the vehicle and into the air mix space;
    The baffle is arranged in the air mix space inside the air conditioning casing,
    The baffle includes a hot air guide portion that guides the hot air to the vent outlet for the second row seat, and a vent outlet for the third row seat that directs the cold air that has flowed above the heater toward the rear of the vehicle. A vehicle air conditioner equipped with a cold air guide section that guides the air to the vehicle.
  2. 　請求項１に記載の車両用空調装置において、
    　前記空調ケーシングの車両後側の下部には、２列目シートの乗員及び３列目シートの乗員の足下へ供給される空調風が吹き出すヒート吹出口が形成され、
    　前記バッフルの前記冷風案内部は、前記加熱器の上方を車両後側へ流れた前記冷風を前記ヒート吹出口へ導く車両用空調装置。     The vehicle air conditioner according to claim 1,
    A heat outlet is formed in the lower part of the air conditioning casing on the rear side of the vehicle, from which air-conditioned air is blown out to be supplied to the feet of a second-row seat occupant and a third-row seat occupant;
    In the vehicle air conditioner, the cold air guide portion of the baffle guides the cold air flowing above the heater toward the rear side of the vehicle to the heat outlet.
  3. 　請求項２に記載の車両用空調装置において、
    　前記ヒート吹出口と前記３列目シート用ベント吹出口とは車両前後方向に並んでいる車両用空調装置。     The vehicle air conditioner according to claim 2,
    The heat outlet and the third row seat vent outlet are arranged in a vehicle air conditioner in the longitudinal direction of the vehicle.
  4. 　請求項３に記載の車両用空調装置において、
    　前記ヒート吹出口は、前記３列目シート用ベント吹出口よりも車両前側に位置している車両用空調装置。     The vehicle air conditioner according to claim 3,
    In the vehicle air conditioner, the heat outlet is located closer to the front of the vehicle than the third row seat vent outlet.
  5. 　請求項１に記載の車両用空調装置において、
    　前記バッフルには、複数の前記温風案内部が車幅方向に互いに間隔をあけて設けられている車両用空調装置。     The vehicle air conditioner according to claim 1,
    A vehicle air conditioner, wherein the baffle is provided with a plurality of hot air guide sections spaced apart from each other in the vehicle width direction.
  6. 　請求項１に記載の車両用空調装置において、
    　前記バッフルには、複数の前記冷風案内部が車幅方向に互いに間隔をあけて設けられている車両用空調装置。     The vehicle air conditioner according to claim 1,
    A vehicle air conditioner, wherein the baffle is provided with a plurality of the cold air guide sections spaced apart from each other in the vehicle width direction.
  7. 　請求項５に記載の車両用空調装置において、
    　前記温風案内部は、上方へ突出する筒状をなしており、
    　車幅方向に隣り合う前記温風案内部の間に前記冷風案内部が設けられている車両用空調装置。     The vehicle air conditioner according to claim 5,
    The hot air guide section has a cylindrical shape that projects upward,
    A vehicle air conditioner, wherein the cold air guide section is provided between the hot air guide sections adjacent in the vehicle width direction.
  8. 　請求項１に記載の車両用空調装置において、
    　前記冷却器は、その空気通過面が上側へ行くほど車両前側に位置するように傾斜配置され、
    　前記加熱器は、その空気通過面が上側へ行くほど車両前側に位置するように傾斜配置されている車両用空調装置。     The vehicle air conditioner according to claim 1,
    The cooler is arranged at an angle so that its air passage surface is positioned closer to the front of the vehicle as it goes upward;
    In the vehicle air conditioner, the heater is arranged at an angle so that its air passing surface is located toward the front of the vehicle as it goes upward.
  9. 　請求項８に記載の車両用空調装置において、
    　前記バッフルは、前記加熱器における車両後側に位置する面と対向するように配置されている車両用空調装置。     The vehicle air conditioner according to claim 8,
    In the vehicle air conditioner, the baffle is arranged to face a surface of the heater located on the rear side of the vehicle.
  10. 　請求項１に記載の車両用空調装置において、
    　前記空調ケーシングの内部には、２列目シートの乗員及び３列目シートの乗員の足下へ供給される空調風が吹き出すヒート吹出口と、前記３列目シート用ベント吹出口とを開閉する吹出方向切替用ダンパが設けられ、
    　前記バッフルにおける温風流れ方向下流側端部と、前記吹出方向切替用ダンパとの間には、前記ヒート吹出口と前記３列目シート用ベント吹出口とのうち車両後方側に位置する吹出口に温風を流入可能な間隙流路が形成される車両用空調装置。     The vehicle air conditioner according to claim 1,
    Inside the air conditioning casing, there are provided a heat outlet that blows out the conditioned air to be supplied to the feet of the occupants in the second row of seats and the occupants in the third row of seats, and an outlet that opens and closes the vent outlet for the third row of seats. A direction switching damper is provided,
    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. A vehicle air conditioner in which a gap flow path is formed through which warm air can flow.
  11. 　請求項１に記載の車両用空調装置において、
    　前記空調ケーシングの内部には、前記加熱器から車両後方に離れた箇所に縦板部が設けられ、
    　前記縦板部は、前記空調ケーシングの底壁部から上方へ延びるとともに、前記加熱器の車両後側の面と対向するように配置される車両用空調装置。     The vehicle air conditioner according to claim 1,
    A vertical plate portion is provided inside the air conditioning casing at a location remote from the heater toward the rear of the vehicle,
    In the vehicle air conditioner, the vertical plate portion extends upward from the bottom wall portion of the air conditioning casing and is arranged to face a surface of the heater on the vehicle rear side.
  12. 　請求項１に記載の車両用空調装置において、
    　前記冷風案内部は、前記バッフルの車幅方向中央部及び車幅方向両側にそれぞれ設けられるとともに、上下方向に延びており、
    　車幅方向中央部の前記冷風案内部は、車幅方向両側の前記冷風案内部の下側部分に比べて車両前側に位置するように形成されている車両用空調装置。     The vehicle air conditioner according to claim 1,
    The cold air guide portion is provided at a central portion in the vehicle width direction and on both sides of the baffle in the vehicle width direction, and extends in the vertical direction,
    The vehicle air conditioner is configured such that the cold air guide section at the center in the vehicle width direction is 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.
PCT/JP2023/007641 2022-03-08 2023-03-01 Vehicular air-conditioning device WO2023171503A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009227026A (en) * 2008-03-21 2009-10-08 Denso Corp Air conditioning device for vehicle
JP2010018248A (en) * 2008-07-14 2010-01-28 Denso Corp Air conditioner for vehicle
JP2016022776A (en) * 2014-07-17 2016-02-08 マツダ株式会社 Vehicular control device
JP2016203667A (en) * 2015-04-15 2016-12-08 株式会社デンソー Vehicle air conditioning unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009227026A (en) * 2008-03-21 2009-10-08 Denso Corp Air conditioning device for vehicle
JP2010018248A (en) * 2008-07-14 2010-01-28 Denso Corp Air conditioner for vehicle
JP2016022776A (en) * 2014-07-17 2016-02-08 マツダ株式会社 Vehicular control device
JP2016203667A (en) * 2015-04-15 2016-12-08 株式会社デンソー Vehicle air conditioning unit

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