WO2018139032A1 - Vehicle air conditioning device - Google Patents

Vehicle air conditioning device Download PDF

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Publication number
WO2018139032A1
WO2018139032A1 PCT/JP2017/042494 JP2017042494W WO2018139032A1 WO 2018139032 A1 WO2018139032 A1 WO 2018139032A1 JP 2017042494 W JP2017042494 W JP 2017042494W WO 2018139032 A1 WO2018139032 A1 WO 2018139032A1
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WO
WIPO (PCT)
Prior art keywords
heater
air
passage
vehicle
communication hole
Prior art date
Application number
PCT/JP2017/042494
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French (fr)
Japanese (ja)
Inventor
成 北村
Original Assignee
株式会社デンソー
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Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2018139032A1 publication Critical patent/WO2018139032A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • 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
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant

Definitions

  • the disclosure in this specification relates to an air conditioner used in a vehicle.
  • Patent Document 1 discloses a vehicle air conditioner. This device uses a door to adjust the amount of hot air blown to the front foot outlet and the rear foot blower and the amount of hot air blown to the differential outlet.
  • Patent Document 2 discloses a vehicle air conditioner. This device obtains the required passage cross-sectional area by bending the plate portion.
  • One disclosed object is to provide a vehicle air conditioner capable of realizing a necessary air volume.
  • the vehicle air conditioner disclosed herein includes a heater core (21) that heats air, a differential outlet (13) that blows air toward the windshield of the vehicle, and a case that partitions a plurality of heater passages that pass through the heater core. (41, 42, 43, 44, 45), and the plurality of heater passages are close to the differential outlet, and the first heater passage (25a, 25b) for supplying air to the differential outlet, and the differential outlet
  • the case has a second heater passage (25e) in which the first heater passage lies, and the case communicates with the first heater passage on the downstream side of the heater core.
  • the communicating hole (51) is provided.
  • the air in the second heater passage can flow to the first heater passage through the communication hole. Furthermore, since the first heater passage supplies air to the differential outlet, the air in the second heater passage may be supplied to the differential outlet through the communication hole and the first heater passage. . Thereby, when it is necessary to blow out air from the differential outlet, air is supplied from the second heater passage in addition to the air from the first heater passage. Therefore, the vehicle air conditioner which can implement
  • FIG. 1 is a perspective view of a vehicle air conditioner according to a first embodiment. It is a side view of a vehicle air conditioner. It is sectional drawing modeled of the vehicle air conditioner. It is the modeled rear view of a heater unit. It is a rear view which shows a bypass channel and a heater channel. It is an exploded view which shows the case of a heater unit. It is a rear view which shows a part of case of a heater unit. It is sectional drawing modeled of the vehicle air conditioner. It is an enlarged view which shows a part shown by arrow IX of FIG. It is a top view which shows a notch.
  • the vehicle air conditioner 1 is mounted in the vehicle.
  • the vehicle air conditioner 1 is mounted, for example, in front of the front seat of the vehicle.
  • an upward direction UP, a downward direction BT, a left direction LT, a right direction RT, a front direction FR, and a rear direction RR in the vehicle are illustrated.
  • the vehicle air conditioner 1 has an inside / outside air switching device 2, a blower 3, and a temperature controller 4.
  • the inside / outside air switching device 2, the blower 3, and the temperature controller 4 each have a resin case. These cases form an air passage. These cases contain heat exchangers and functional parts such as doors.
  • the inside / outside air switching device 2 has an inside air inlet 11 for introducing air in the vehicle interior and an outside air inlet 12 for introducing air outside the vehicle.
  • the inside / outside air switching device 2 has a door that adjusts the introduction ratio of the inside air from the inside air inlet 11 and the outside air from the outside air inlet 12.
  • the blower 3 includes an electric motor that drives a fan. In the figure, a cavity for mounting an intake filter is shown. The intake filter is not shown.
  • the blower 3 introduces air from the inside / outside air switching device 2 and blows air toward the temperature regulator 4.
  • the temperature controller 4 has a cooler unit 5, a heater unit 6, and a blowout unit 7.
  • the cooler unit 5 includes a cooling heat exchanger for cooling the air.
  • the cooling heat exchanger is an evaporator of a refrigeration cycle.
  • the cooler unit 5 cools the entire amount of air blown by the blower 3 when the cooling heat exchanger functions.
  • the heater unit 6 includes a heater core 21.
  • the heater unit 6 includes a plurality of air mix doors.
  • the heater unit 6 heats the air that has passed through the cooler unit 5.
  • the heater unit 6 provides independent temperature control for a plurality of regions obtained by virtually dividing a vehicle room into a plurality of regions.
  • the heater unit 6 provides independent temperature control for the driver seat area, the passenger seat area, and the rear seat area.
  • the driver seat area is a space around the driver seat of the vehicle.
  • the passenger seat area is the front seat of the vehicle and is the space around the seat next to the driver seat.
  • the driver seat area may be arranged in the front right seat or the left seat.
  • the rear seat area is a space around the rear seat of the vehicle.
  • the plurality of areas can be arbitrarily set.
  • the heater unit 6 is also called a three-seat independent temperature control type unit. Details of the heater unit 6 will be described later.
  • the blowout unit 7 includes a plurality of blowout openings for blowing out air toward the room.
  • the blowing unit 7 switches a plurality of outlets according to a plurality of blowing modes.
  • the plurality of air outlets shown in the figure are connected to a plurality of ducts (not shown).
  • the plurality of ducts communicate with a blowing grill provided in the vehicle.
  • the blowing unit 7 has at least a differential outlet 13.
  • the differential outlet 13 blows out air toward the front windshield of the vehicle.
  • the differential outlet 13 is mainly used to remove fogging of the windshield.
  • the differential outlet 13 is mainly opened in the differential mode.
  • the blowout unit 7 may additionally open the differential blower outlet 13 even in a mode other than the differential mode.
  • the blowout unit 7 may additionally open the differential blowout port 13 even in a foot mode in which air is blown out from a front seat foot blowout port 15 and / or a rear seat foot blowout port 18 to be described later.
  • the blowing unit 7 has a front seat face outlet 14.
  • the front seat face outlet 14 includes face outlets 14a and 14b for the right seat and face outlets 14c and 14d for the left seat.
  • the front seat face outlet 14 is mainly used for blowing air toward the upper portion of the front seat.
  • the blowing unit 7 has a front seat foot outlet 15 for the front seat.
  • the front seat foot outlet 15 has a foot outlet 15a for the right seat and a foot outlet 15b for the left seat.
  • the front seat foot outlet 15 is mainly used for blowing air toward the lower portion of the front seat.
  • the blowout unit 7 has a rear seat face blowout port 17.
  • the rear seat face outlet 17 is mainly used for blowing air toward the upper portion of the rear seat.
  • the blowing unit 7 has a rear seat foot outlet 18 for a rear seat.
  • the rear seat foot outlet 18 has a right rear seat foot outlet 18a for the right rear seat and a left rear seat foot outlet 18b for the left rear seat.
  • the rear seat foot outlet 18 is mainly used for blowing air toward the lower portion of the rear seat.
  • the vehicle air conditioner 1 air flows in the order of the inside / outside air switching device 2, the blower 3, and the temperature controller 4.
  • the air whose temperature has been adjusted by the temperature controller 4 is supplied into the room from a plurality of outlets.
  • the temperature of the air supplied to the three areas in the room is adjusted independently of each other. Specifically, air of different temperatures is supplied to the driver seat area, the passenger seat area, and the rear seat area. As a result, the vehicle air conditioner 1 controls the temperature of the three indoor areas independently of each other.
  • FIG. 2 shows a side view of the vehicle air conditioner 1.
  • the cooler unit 5 and the heater unit 6 are disposed along the flow of air from the front direction FR to the rear direction RR of the vehicle.
  • the heater unit 6 has a heater core 21 as a heating heat exchanger for heating air.
  • the heater core 21 is a hot water heater that uses hot water available in the vehicle as a heat source. The heater core 21 heats air when warm water is flowed.
  • the heater unit 6 may include an electric heater 21e.
  • the electric heater 21e is selectively provided.
  • the electric heater 21 e is disposed in the air passage toward the front seat foot outlet 15 and the rear seat foot outlet 18.
  • the electric heater 21e heats the air when activated.
  • the blowing unit 7 is arranged in the rear direction RR of the vehicle.
  • the temperature-controlled air flows through the inside of the blowing unit 7 toward the outlets selected by the plurality of doors.
  • the cooler unit 5 has an evaporator 22.
  • the evaporator 22 is supplied with a low-temperature and low-pressure refrigerant from the refrigeration cycle.
  • the evaporator 22 is disposed so as to cross all the air passages of the cooler unit 5. The entire amount of air blown from the blower 3 passes through the evaporator 22.
  • the heater unit 6 includes a plurality of air mix doors 23.
  • the case of the heater unit 6 defines a bypass passage 24 that bypasses the heater core 21.
  • the case of the heater unit 6 defines a heater core passage 25 that passes through the heater core 21.
  • the heater core passage 25 is formed from the upstream side to the downstream side of the heater core 21.
  • the heater core passage 25 starts from between the air mix door 23 and the heater core 21, passes through the heater core 21, and extends so as to end on the downstream side of the heater core 21.
  • the air mix door 23 is provided on the inlet side of the bypass passage 24 and the heater core passage 25.
  • the air mix door 23 is provided between the evaporator 22 and the heater core 21.
  • the air mix door 23 is a so-called slide door type.
  • the air mix door 23 can be provided by various configurations such as a swing shaft type and a film type.
  • the air mix door 23 adjusts the ratio of the inlet area of the bypass passage 24 and the inlet area of the heater core passage 25.
  • the air mix door 23 adjusts the ratio of the air volume in the bypass passage 24 and the air volume in the heater core passage 25.
  • the air that has passed through the bypass passage 24 and the air that has passed through the heater core passage 25 are mixed downstream of these passages. Therefore, the air mix door 23 is a member that adjusts the temperature of the air.
  • the case of the heater unit 6 and the blowout unit 7 defines an air passage toward the plurality of blowout openings 13, 14, 15, 17, and 18. These air passages include an air passage toward the differential outlet 13.
  • the air passage toward the differential outlet 13 extends from the downstream side (rear direction RR) of the heater core 21 while curving in the upward direction UP.
  • the blowing unit 7 includes a differential door 31 for opening and closing the differential outlet 13.
  • the plurality of air passages include air passages toward the outlets 14 and 15 for the front seats.
  • the air passage toward the front seat face outlet 14 extends from the downstream side of the heater core 21 so as to wrap around the outside of the air passage toward the differential outlet 13 in the upward direction UP.
  • the air passage toward the front seat foot outlet 15 extends from the downstream side of the heater core 21 toward the right direction RT and the left direction LT of the outlet unit 7.
  • the air passages toward the outlets 14 and 15 for the front seat are the air passages toward the outlets 14a, 14b and 15a for the right seat and the air passages toward the outlets 14c, 14d and 15b for the left seat.
  • the blowing unit 7 includes a plurality of face doors 32 for opening and closing the right seat face outlets 14a and 14b and the left seat face outlets 14c and 14d, respectively.
  • the plurality of air passages include air passages toward the outlets 17 and 18 for the rear seats.
  • the air passages toward the outlets 17 and 18 for the rear seats extend from the downstream side of the heater core 21 in the downward direction BT and the rear direction RR.
  • Air passages toward the outlets 17 and 18 for the rear seats extend in the rearward direction RR at the center of the vehicle.
  • the air passages toward the outlets 17 and 18 for the rear seat are connected to a duct toward the rear seat arranged along the floor of the vehicle.
  • the blowout unit 7 has a rear seat door 34 that opens and closes the rear seat face blowout port 17 and the rear seat foot blowout port 18, respectively.
  • the heater unit 6 includes a plurality of air mix doors 23a, 23b, 23c, 23d, and 23e in order to provide a plurality of temperature adjusting mechanisms.
  • a rotating shaft as a drive mechanism and a gear mechanism are shown.
  • the case of the heater unit 6 defines a plurality of bypass passages 24a, 24b, 24c, 24d, and 24e.
  • FIG. 5 shows the arrangement of the bypass passages 24a-24e and the heater passages 25a-25e on the heater core 21.
  • the bypass passage 24a, the heater passage 25a, the bypass passage 24c, and the heater passage 25c mainly communicate with the air outlets 14a, 14b, and 15a for the front right seat.
  • the bypass passage 24b, the heater passage 25b, the bypass passage 24d, and the heater passage 25d mainly communicate with the air outlets 14c, 14d, and 15b for the front left seat.
  • the bypass passage 24a, the heater passage 25a, the bypass passage 24c, the heater passage 25c, the bypass passage 24b, the heater passage 25b, the bypass passage 24d, and the heater passage 25d may communicate with the differential outlet 13 in some cases.
  • the bypass passage 24e and the heater passage 25e mainly communicate with the outlets 17 and 18 for the rear seats.
  • the bypass passage 24e and the heater passage 25e may communicate with the differential outlet 13 as well.
  • a plurality of air mix doors 23c, 23d, and 23e that are provided upstream of the plurality of heater passages 25c, 25d, and 25e and adjust the respective opening areas of the plurality of heater passages 25c, 25d, and 25e are provided.
  • the air mix door 23a and the air mix door 23c are interlocked.
  • the air mix door 23a and the air mix door 23c adjust the ratio of the opening areas in the bypass passage 24a, the heater passage 25a, the bypass passage 24c, and the heater passage 25c.
  • the air mix door 23a and the air mix door 23c are temperature adjustment members for the front right seat.
  • the air mix door 23b and the air mix door 23d are interlocked.
  • the air mix door 23b and the air mix door 23d adjust the ratio of the opening areas in the bypass passage 24b, the heater passage 25b, the bypass passage 24d, and the heater passage 25d.
  • the air mix door 23b and the air mix door 23d are temperature adjusting members for the front left seat.
  • the air mix door 23e adjusts the ratio of the opening area in the bypass passage 24e and the heater passage 25e.
  • the air mix door 23e is a temperature adjustment member for the rear seat.
  • the bypass passage 24a bypasses the heater core 21.
  • the bypass passage 24a and the heater passage 25a merge at the downstream (rearward direction RR) of the heater core 21.
  • the bypass passage 24b bypasses the heater core 21.
  • the bypass passage 24b and the heater passage 25b merge downstream of the heater core 21 (rearward direction RR).
  • the bypass passage 24 c bypasses under the heater core 21.
  • the bypass passage 24c and the heater passage 25c merge downstream of the heater core 21 (rearward direction RR).
  • the bypass passage 24d bypasses under the heater core 21.
  • the bypass passage 24d and the heater passage 25d merge at the downstream (rearward direction RR) of the heater core 21.
  • the bypass passage 24e bypasses under the heater core 21.
  • bypass passage 24e and the heater passage 25e merge at the downstream (rearward direction RR) of the heater core 21.
  • the bypass passage 24e and the heater passage 25e extend between the bypass passage 24c and the heater passage 25c and the bypass passage 24d and the heater passage 25d in the rearward direction RR.
  • FIG. 6 shows the case of the heater unit 6.
  • a disassembled state is shown.
  • FIG. 7 shows a combined state of the center case 41 and the two middle cases 44 and 45.
  • the heater unit 6 has a plurality of cases 41-45.
  • the heater unit 6 includes a center case 41 and side cases 42 and 43 on both sides. Side cases 42 and 43 are combined with the center case 41 from both sides of the center case 41. Further, the heater unit 6 includes two middle cases 44 and 45. The middle case 44 is disposed between the center case 41 and the side case 42.
  • the center case 41 provides a partition member that partitions the heater passage 25a and the heater passage 25b.
  • the middle case 45 is disposed between the center case 41 and the side case 43.
  • the middle case 44 provides a partition member that partitions the heater passage 25c and the heater passage 25e.
  • the middle case 45 provides a partition member that partitions the heater passage 25d and the heater passage 25e.
  • the center case 41 may partition the heater passage 25e. Therefore, the two middle cases 44 and 45 define a plurality of heater passages 25 c, 25 d, and 25 e on the upstream side and the downstream side of the heater core 21.
  • Middle cases 44 and 45 are members smaller than other members, for example, center case 41 and side cases 42 and 43.
  • the middle cases 44 and 45 have fewer functions than other members such as the center case 41 and the side cases 42 and 43. For this reason, the shape of the middle cases 44 and 45 can be changed while suppressing the influence on other members.
  • several types of middle cases 44 and 45 having different shapes are prepared, and the middle cases 44 and 45 suitable for the difference in vehicle type and specification are selected.
  • the middle cases 44 and 45 can have a shape suitable for the difference in vehicle type and specifications.
  • FIG. 8 shows a cross section of the temperature controller 4 in the substantially central portion, that is, in the bypass passage 24e and the heater passage 25e.
  • FIG. 9 is an enlarged view of the portion indicated by the arrow IX in the previous figure.
  • the heater passages 25a and 25b are called first heater passages.
  • the heater passage 25e is called a second heater passage. Therefore, the first heater passages 25a and 25b are closer to the differential outlet 13 than the second heater passage 25e.
  • the first heater passages 25 a and 25 b supply air to the differential outlet 13.
  • the second heater passage 25e is further away from the differential outlet 13 than the first heater passages 25a and 25b.
  • the first heater passages 25a and 25b lie between the differential outlet 13 and the second heater passage 25e.
  • the first heater passages 25a and 25b are located above the second heater passage 25e. Therefore, the case of the heater unit 6 provides a partition that divides at least the heater core 21 into upper and lower portions.
  • the case forming the heater unit 6 and the blowout unit 7 has a partition wall 48.
  • the partition wall 48 partitions the air passage for the rear seat and the air passage communicating with the differential outlet 13.
  • the air passage communicating with the differential outlet 13 is also an air passage for the front seat.
  • the partition wall 48 is provided by a center case 41 and middle cases 44 and 45.
  • the partition wall 48 gradually bends the heater passage 25e downward BT downstream of the heater core 21. Therefore, the partition wall 48 is convexly curved upward.
  • the partition wall 48 has a bent portion.
  • the case forming the heater unit 6 and the blowout unit 7 has a communication hole 51 and a barrier portion 52.
  • the partition wall 48 is a wall extending in the vehicle width direction, that is, in the right direction RT and the left direction LT.
  • the communication hole 51 is partitioned by a partition wall 48.
  • the communication hole 51 communicates both air passages.
  • the communication hole 51 communicates both air passages directly without a control member such as a door.
  • the communication hole 51 is always in communication without depending on the differential door 31.
  • the communication hole 51 is positioned downstream from the heater core 21.
  • the communication hole 51 is provided in the partition wall 48 that partitions the heater passage 25e.
  • the communication hole 51 allows the heater passage 25e to communicate with the heater passages 25a and 25b.
  • the communication hole 51 is positioned so as to face the end of the bypass passage 24e that goes around the lower direction BT of the heater core 21.
  • the communication hole 51 is positioned downstream from the electric heater 21e.
  • the communication hole 51 is a rectangle having a longitudinal axis along the right direction RT and the left direction LT of the vehicle. In other words, the communication hole 51 extends along the heater core 21.
  • the communication hole 51 is formed at a position where a relatively large pressure difference is obtained between the air passage for the rear seat and the air passage communicating with the differential air outlet 13 when the differential air outlet 13 is opened.
  • the communication hole 51 is formed at a position where a pressure difference is unlikely to occur between the air passage for the rear seat and the air passage communicating with the differential air outlet 13 when the differential air outlet 13 is closed.
  • the communication hole 51 allows air movement according to the pressure difference between both air passages.
  • the communication hole 51 is expected to allow air flow from at least the air passage for the rear seat to the air passage communicating with the differential outlet 13.
  • the communication hole 51 supplies air from the air passage for the rear seat to the differential outlet 13 due to the pressure difference between both air passages.
  • the barrier portion 52 is formed in the partition wall 48.
  • the barrier portion 52 is also called an abutting wall that abuts the air flow.
  • the barrier portion 52 is located downstream from the communication hole 51. In other words, the barrier portion 52 is located in the rear direction RR of the vehicle from the communication hole 51.
  • the barrier 52 is positioned upstream of the outlets 17 and 18 for the rear seat.
  • the barrier portion 52 is positioned upstream from the rear seat door 34.
  • the barrier portion 52 is located at the bent portion of the partition wall 48.
  • the barrier portion 52 protrudes toward the air passage for the rear seat.
  • the barrier 52 protrudes from the partition wall 48 in the downward direction BT.
  • the barrier portion 52 extends along the right direction RT and the left direction LT of the vehicle.
  • the barrier portion 52 and the communication hole 51 extend in parallel to each other.
  • the barrier portion 52 provides a step facing the air flow downstream of the communication hole 51.
  • the barrier portion 52 is a barrier against the airflow flowing through the air passage for the rear seat.
  • the barrier portion 52 gives a large resistance to the air flowing through the heater passage 25e.
  • the barrier 52 restricts the amount of air flowing toward the rear seat.
  • the communication hole 51 is open along the partition wall 48, and the barrier portion 52 protrudes from the partition wall 48. For this reason, the barrier portion 52 promotes the air flow flowing into the communication hole 51. In other words, the barrier portion 52 guides air to the differential outlet 13.
  • FIG. 10 shows the communication hole 51.
  • the communication hole 51 is formed in a partition wall 48 that partitions an air passage for the rear seat and an air passage for the front seat.
  • the partition wall 49 includes a plurality of case mating surfaces 49.
  • the partition wall 49 is formed by a center case 41 and middle cases 44 and 45.
  • the center case 41 and the middle cases 44 and 45 are abutted at the mating surface 49.
  • the mating surface 49 may be a parallel plane.
  • the mating surface 49 may be an uneven fitting portion.
  • the case for providing the heater unit 6 and the blowout unit 7 has a plurality of partial cases 41, 42, 43, 44, 45.
  • the communication hole 51 is formed by a notch 51a facing the mating surface 49 of the plurality of partial cases.
  • the communication hole 51 is in contact with the mating surface 49.
  • the communication hole 51 straddles the mating surface 49.
  • the communication hole 51 is formed by a notch 51 a that contacts the mating surface 49.
  • the notch 51 a is a recess opening in the mating surface 49.
  • the notch 51a extends from the mating surface 49 toward the case.
  • the notch 51a extends from the mating surface 49 toward both cases or toward only one case.
  • the notch 51 a may extend from the mating surface 49 toward the center case 41.
  • the notch 51 a may extend from the mating surface 49 toward the middle cases 44 and 45.
  • the communication hole 51 is provided by a notch 51a. Thereby, the communication hole 51 can be provided without requiring a complicated mold.
  • the vehicle air conditioner 1 has a defroster mode for providing air to the differential outlet 13.
  • the amount of air supplied to the differential outlet 13 may be insufficient. For example, if the air passing through the heater passage 25e is supplied only to the air passage for the rear seat, a part of the heating capability of the heater core 12 is used only for the rear seat, and the defroster capability is reduced.
  • the differential door 31 opens the differential outlet 13 in the defroster mode.
  • the barrier portion 52 becomes a resistance against the air flowing through the heater passage 25e.
  • the air flowing through the heater passage 25 e flows through the communication hole 51 to the air passage for the front seat and also flows to the differential outlet 13.
  • the air in the heater passage 25e flows from the communication hole 51 to the air passage for the front seat in order to seek escape. It also flows to the air outlet 13. Thereby, the air volume from the differential outlet 13 is supplemented.
  • the position of the communication hole 51 is such that when the differential outlet 31 is opened by the differential door 31, a pressure difference generated between the heater passage 25e and the heater passages 25a and 25b causes the heater passage 25a to pass through the communication hole 51 from the heater passage 25e. , 25b.
  • the differential door 31 may close the differential outlet 13 in modes other than the defroster mode. In this case, the pressure difference between the air passage for the rear seat and the air passage for the front seat is small. For this reason, the amount of air passing through the communication hole 51 is suppressed. Thus, independent temperature control for the rear seat by the air passage for the rear seat, that is, the bypass passage 24e and the heater passage 25e is maintained.
  • independent temperature control to a plurality of areas such as the front seat and the rear seat is provided.
  • the air volume shortage when the differential outlet 13 is utilized is suppressed while maintaining this independent temperature control.
  • the communication hole 51 is formed by the notch 51a in the mating surfaces 49 of the plurality of cases. The communication hole 51 is always in communication. For this reason, lack of an air volume when the differential outlet 13 is utilized is suppressed, maintaining an independent temperature control, without requiring an expensive door mechanism.
  • the disclosure herein is not limited to the illustrated embodiments.
  • the disclosure encompasses the illustrated embodiments and variations by those skilled in the art based thereon.
  • the disclosure is not limited to the combinations of parts and / or elements shown in the embodiments.
  • the disclosure can be implemented in various combinations.
  • the disclosure may have additional parts that can be added to the embodiments.
  • the disclosure includes those in which parts and / or elements of the embodiments are omitted.
  • the disclosure encompasses the replacement or combination of parts and / or elements between one embodiment and another.
  • the technical scope disclosed is not limited to the description of the embodiments. Some technical scope disclosed is shown by the description of the scope of claims, and should be understood to include all modifications within the meaning and scope equivalent to the description of the scope of claims.
  • the partition wall 48 is provided by the center case 41 and the middle cases 44 and 45.
  • the partition wall 48 can be provided by only the center case 41 or the middle cases 44 and 45.
  • the partition wall 48 may be provided by the center case 41 and the side cases 42 and 43.
  • a member for providing the partition wall 48 may be additionally provided.
  • the partition wall 48 can be provided by various members.
  • the communication hole 51 is provided by the notch 51a formed in the mating surface 49 of the case.
  • the communication hole 51 may be provided by an independent opening.
  • the communication hole 51 may be provided by a plurality of notches or a plurality of openings.
  • the entire cutout 51 a opened in the partition wall 48 is used as the communication hole 51.
  • an adjustment member for adjusting the area of the communication hole 51 may be added.
  • a plurality of adjusting members can be prepared and added to the notches 51a.
  • the notch 51a that provides a slightly larger area is formed, and the communication hole 51 is provided by adjusting the area to be small by the adjusting member.
  • a plate-like member such as a resin plate or a tape can be used.
  • the communication hole 51 is provided at the illustrated position.
  • the communication hole 51 may be provided at a position different from that shown in the figure.
  • the communication hole 51 may be formed on the wall surface in the right direction RT and / or the left direction LT from the air passage for the rear seat.
  • the communication hole 51 may be formed in the vertical wall extending in the vehicle height direction, that is, in the upward direction UP or the downward direction BT.

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

Abstract

Provided is a vehicle air conditioning device which is capable of realizing a required air quantity. The vehicle air conditioning device has a temperature regulator (4). The temperature regulator (4) includes a heater core (21). Air mix doors (23c, 23d, 23e) are disposed on the upstream side of the heater core (21). The amount of air passing through a heater passage (25c) is regulated by the air mix door (23c). The amount of air passing through a heater passage (25e) is regulated by the air mix door (23e). A middle case (44) has a regulation unit (46). The regulation unit (46) increases the surface area of the heater core (21) through which the air passes in the heater passage (25c). The regulation unit (46) decreases the surface area of the heater core (21) through which the air passes in the heater passage (25e). The regulation unit (46) regulates a difference in the heating quantities of the heater passages (25c, 25e) without affecting the opening surface area of the air mix doors (23c, 23e) and the like.

Description

車両用空調装置Air conditioner for vehicles 関連出願の相互参照Cross-reference of related applications
　この出願は、２０１７年１月３０日に日本に出願された特許出願第２０１７－１４４１３号を基礎としており、基礎の出願の内容を、全体的に、参照により援用している。 This application is based on Japanese Patent Application No. 2017-14413 filed in Japan on January 30, 2017, and the contents of the basic application are incorporated by reference in their entirety.
　この明細書における開示は、車両に用いられる空調装置に関する。 The disclosure in this specification relates to an air conditioner used in a vehicle.
　特許文献１は、車両用空調装置を開示する。この装置は、フロントフット吹出口およびリアフット吹出口への温風送風量と、デフ吹出口への温風送風量とを調節するためにドアを用いている。特許文献２は、車両用空調装置を開示する。この装置は、板部を屈曲させることにより、求められる通路断面積を得ている。 Patent Document 1 discloses a vehicle air conditioner. This device uses a door to adjust the amount of hot air blown to the front foot outlet and the rear foot blower and the amount of hot air blown to the differential outlet. Patent Document 2 discloses a vehicle air conditioner. This device obtains the required passage cross-sectional area by bending the plate portion.
特開２００８－１５５８５３号公報JP 2008-155853 A 特開２００４－１９６１７７号公報JP 2004-196177 A
　従来技術の構成では、車両用空調装置に求められる風量バランスを実現するために高価で複雑な機構を要する。これでは、市場が求める安価な車両用空調装置を提供することができない。しかも、デフ風量は、車両のウインドシールドの曇りを除去するために貢献する。このため、車両用空調装置において、望ましい風量バランスを実現することは、強く求められている。上述の観点において、または言及されていない他の観点において、車両用空調装置にはさらなる改良が求められている。 In the configuration of the prior art, an expensive and complicated mechanism is required to realize the air volume balance required for the vehicle air conditioner. This makes it impossible to provide an inexpensive vehicle air conditioner required by the market. In addition, the differential airflow contributes to removing fogging of the windshield of the vehicle. For this reason, in a vehicle air conditioner, achieving a desirable air volume balance is strongly demanded. In view of the above, or other aspects not mentioned, there is a need for further improvements in vehicle air conditioners.
　開示されるひとつの目的は、必要な風量を実現可能な車両用空調装置を提供することである。 One disclosed object is to provide a vehicle air conditioner capable of realizing a necessary air volume.
　ここに開示された車両用空調装置は、空気を加熱するヒータコア（２１）と、車両のウインドシールドに向けて空気を吹き出すデフ吹出口（１３）と、ヒータコアを通過する複数のヒータ通路を仕切るケース（４１、４２、４３、４４、４５）とを備え、複数のヒータ通路は、デフ吹出口に近く、しかもデフ吹出口に空気を供給する第１のヒータ通路（２５ａ、２５ｂ）と、デフ吹出口との間に、第１のヒータ通路が横たわっている第２のヒータ通路（２５ｅ）とを有し、ケースは、ヒータコアの下流側において、第２のヒータ通路を第１のヒータ通路に連通している連通穴（５１）を有する。 The vehicle air conditioner disclosed herein includes a heater core (21) that heats air, a differential outlet (13) that blows air toward the windshield of the vehicle, and a case that partitions a plurality of heater passages that pass through the heater core. (41, 42, 43, 44, 45), and the plurality of heater passages are close to the differential outlet, and the first heater passage (25a, 25b) for supplying air to the differential outlet, and the differential outlet The case has a second heater passage (25e) in which the first heater passage lies, and the case communicates with the first heater passage on the downstream side of the heater core. The communicating hole (51) is provided.
　開示される車両用空調装置によると、第２のヒータ通路の空気は、連通穴を通して、第１のヒータ通路に流れることができる。さらに、第１のヒータ通路は、デフ吹出口に空気を供給するから、第２のヒータ通路の空気が、連通穴と、第１のヒータ通路とを通して、デフ吹出口に供給される場合がある。これにより、デフ吹出口からの空気の吹き出しが必要な場合には、第１のヒータ通路からの空気に加えて、第２のヒータ通路からも空気が供給される。よって、必要な風量を実現可能な車両用空調装置が提供される。 According to the disclosed vehicle air conditioner, the air in the second heater passage can flow to the first heater passage through the communication hole. Furthermore, since the first heater passage supplies air to the differential outlet, the air in the second heater passage may be supplied to the differential outlet through the communication hole and the first heater passage. . Thereby, when it is necessary to blow out air from the differential outlet, air is supplied from the second heater passage in addition to the air from the first heater passage. Therefore, the vehicle air conditioner which can implement | achieve required air volume is provided.
　この明細書における開示された複数の態様は、それぞれの目的を達成するために、互いに異なる技術的手段を採用する。請求の範囲およびこの項に記載した括弧内の符号は、後述する実施形態の部分との対応関係を例示的に示すものであって、技術的範囲を限定することを意図するものではない。この明細書に開示される目的、特徴、および効果は、後続の詳細な説明、および添付の図面を参照することによってより明確になる。 The plurality of modes disclosed in this specification adopt different technical means to achieve each purpose. The reference numerals in parentheses described in the claims and this section exemplify the correspondence with the embodiments described later, and are not intended to limit the technical scope. The objects, features, and advantages disclosed in this specification will become more apparent with reference to the following detailed description and accompanying drawings.
第１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 a first embodiment. 車両用空調装置の側面図である。It is a side view of a vehicle air conditioner. 車両用空調装置のモデル化された断面図である。It is sectional drawing modeled of the vehicle air conditioner. ヒータユニットのモデル化された背面図である。It is the modeled rear view of a heater unit. バイパス通路とヒータ通路とを示す背面図である。It is a rear view which shows a bypass channel and a heater channel. ヒータユニットのケースを示す分解図である。It is an exploded view which shows the case of a heater unit. ヒータユニットのケースの一部を示す背面図である。It is a rear view which shows a part of case of a heater unit. 車両用空調装置のモデル化された断面図である。It is sectional drawing modeled of the vehicle air conditioner. 図８の矢印ＩＸで示される一部を示す拡大図である。It is an enlarged view which shows a part shown by arrow IX of FIG. 切欠を示す平面図である。It is a top view which shows a notch.
　図面を参照しながら、複数の実施形態を説明する。複数の実施形態において、機能的におよび／または構造的に対応する部分および／または関連付けられる部分には同一の参照符号、または百以上の位が異なる参照符号が付される場合がある。対応する部分および／または関連付けられる部分については、他の実施形態の説明を参照することができる。 A plurality of embodiments will be described with reference to the drawings. In embodiments, functionally and / or structurally corresponding parts and / or associated parts may be assigned the same reference signs or reference signs that differ by more than a hundred. For the corresponding parts and / or associated parts, the description of other embodiments can be referred to.
　第１実施形態
　図１において、車両用空調装置１は、車両に搭載されている。車両用空調装置１は、例えば、車両の前席の前方に搭載されている。図中には、車両における上方向ＵＰ、下方向ＢＴ、左方向ＬＴ、右方向ＲＴ、前方向ＦＲ、および後方向ＲＲが図示されている。 1st Embodiment In FIG. 1, the vehicle air conditioner 1 is mounted in the vehicle. The vehicle air conditioner 1 is mounted, for example, in front of the front seat of the vehicle. In the drawing, an upward direction UP, a downward direction BT, a left direction LT, a right direction RT, a front direction FR, and a rear direction RR in the vehicle are illustrated.
　車両用空調装置１は、内外気切換装置２、送風機３、および温度調節機４を有する。内外気切換装置２、送風機３、および温度調節機４は、それぞれ、樹脂製のケースを有する。これらケースは、空気通路を形成する。これらケースは、熱交換器、およびドアのような機能部品を収容している。 The vehicle air conditioner 1 has an inside / outside air switching device 2, a blower 3, and a temperature controller 4. The inside / outside air switching device 2, the blower 3, and the temperature controller 4 each have a resin case. These cases form an air passage. These cases contain heat exchangers and functional parts such as doors.
　内外気切換装置２は、車両の室内の空気を導入する内気取入口１１と、車両の外の空気を導入する外気取入口１２とを有する。内外気切換装置２は、内気取入口１１からの内気と、外気取入口１２からの外気との導入割合を調節するドアを有する。送風機３は、ファンを駆動する電動機を備える。図中には、吸気フィルタを装着するための空洞が図示されている。吸気フィルタは図示されていない。送風機３は、空気を内外気切換装置２から導入し、温度調節機４に向けて送風する。温度調節機４は、クーラユニット５、ヒータユニット６、および吹出ユニット７を有する。 The inside / outside air switching device 2 has an inside air inlet 11 for introducing air in the vehicle interior and an outside air inlet 12 for introducing air outside the vehicle. The inside / outside air switching device 2 has a door that adjusts the introduction ratio of the inside air from the inside air inlet 11 and the outside air from the outside air inlet 12. The blower 3 includes an electric motor that drives a fan. In the figure, a cavity for mounting an intake filter is shown. The intake filter is not shown. The blower 3 introduces air from the inside / outside air switching device 2 and blows air toward the temperature regulator 4. The temperature controller 4 has a cooler unit 5, a heater unit 6, and a blowout unit 7.
　クーラユニット５は、空気を冷却するための冷却熱交換器を備える。冷却熱交換器は、冷凍サイクルのエバポレータである。クーラユニット５は、冷却熱交換器が機能する場合に、送風機３によって送風された空気の全量を冷却する。 The cooler unit 5 includes a cooling heat exchanger for cooling the air. The cooling heat exchanger is an evaporator of a refrigeration cycle. The cooler unit 5 cools the entire amount of air blown by the blower 3 when the cooling heat exchanger functions.
　ヒータユニット６は、ヒータコア２１を備える。ヒータユニット６は、複数のエアミックスドアを備える。ヒータユニット６は、クーラユニット５を通過した空気を加熱する。ヒータユニット６は、車両の室を仮想的に複数に分割して得られる複数の領域に対して、独立した温度制御を提供する。ヒータユニット６は、運転席領域、助手席領域、および後席領域に対して、独立した温度調節を提供する。運転席領域は、車両の運転席の周辺空間である。助手席領域は、車両の前席であって、運転席の隣の席の周辺空間である。運転席領域は、前席の右席、または左席に配置されうる。後席領域は、車両の後席の周辺空間である。複数の領域は、任意に設定可能である。ヒータユニット６は、３席独立温度制御型ユニットとも呼ばれる。ヒータユニット６の詳細は後述する。 The heater unit 6 includes a heater core 21. The heater unit 6 includes a plurality of air mix doors. The heater unit 6 heats the air that has passed through the cooler unit 5. The heater unit 6 provides independent temperature control for a plurality of regions obtained by virtually dividing a vehicle room into a plurality of regions. The heater unit 6 provides independent temperature control for the driver seat area, the passenger seat area, and the rear seat area. The driver seat area is a space around the driver seat of the vehicle. The passenger seat area is the front seat of the vehicle and is the space around the seat next to the driver seat. The driver seat area may be arranged in the front right seat or the left seat. The rear seat area is a space around the rear seat of the vehicle. The plurality of areas can be arbitrarily set. The heater unit 6 is also called a three-seat independent temperature control type unit. Details of the heater unit 6 will be described later.
　吹出ユニット７は、室内に向けて空気を吹き出すための複数の吹出口を備える。吹出ユニット７は、複数の吹出モードに応じて、複数の吹出口を切換える。図示される複数の吹出口は、図示されない複数のダクトに接続されている。複数のダクトは、車両に設けられた吹出グリルに連通している。 The blowout unit 7 includes a plurality of blowout openings for blowing out air toward the room. The blowing unit 7 switches a plurality of outlets according to a plurality of blowing modes. The plurality of air outlets shown in the figure are connected to a plurality of ducts (not shown). The plurality of ducts communicate with a blowing grill provided in the vehicle.
　吹出ユニット７は、少なくともデフ吹出口１３を有する。デフ吹出口１３は、車両の前方ウインドシールドに向けて空気を吹き出す。デフ吹出口１３は、主としてウインドシールドの曇りを除去するために利用される。デフ吹出口１３は、主として、デフモードにおいて開かれる。吹出ユニット７は、デフモード以外のモードにおいても、デフ吹出口１３を追加的に開く場合がある。例えば、吹出ユニット７は、後述する前席フット吹出口１５、および／または後席フット吹出口１８から空気を吹き出すフットモードにおいても、デフ吹出口１３を追加的に開く場合がある。 The blowing unit 7 has at least a differential outlet 13. The differential outlet 13 blows out air toward the front windshield of the vehicle. The differential outlet 13 is mainly used to remove fogging of the windshield. The differential outlet 13 is mainly opened in the differential mode. The blowout unit 7 may additionally open the differential blower outlet 13 even in a mode other than the differential mode. For example, the blowout unit 7 may additionally open the differential blowout port 13 even in a foot mode in which air is blown out from a front seat foot blowout port 15 and / or a rear seat foot blowout port 18 to be described later.
　吹出ユニット７は、前席フェース吹出口１４を有する。前席フェース吹出口１４は、右席のためのフェース吹出口１４ａ、１４ｂ、および、左席のためのフェース吹出口１４ｃ、１４ｄを有する。前席フェース吹出口１４は、主として、前席の上部に向けて空気を吹き出すために利用される。吹出ユニット７は、前席のための前席フット吹出口１５を有する。前席フット吹出口１５は、右席のためのフット吹出口１５ａ、および、左席のためのフット吹出口１５ｂを有する。前席フット吹出口１５は、主として、前席の下部に向けて空気を吹き出すために利用される。 The blowing unit 7 has a front seat face outlet 14. The front seat face outlet 14 includes face outlets 14a and 14b for the right seat and face outlets 14c and 14d for the left seat. The front seat face outlet 14 is mainly used for blowing air toward the upper portion of the front seat. The blowing unit 7 has a front seat foot outlet 15 for the front seat. The front seat foot outlet 15 has a foot outlet 15a for the right seat and a foot outlet 15b for the left seat. The front seat foot outlet 15 is mainly used for blowing air toward the lower portion of the front seat.
　吹出ユニット７は、後席フェース吹出口１７を有する。後席フェース吹出口１７は、主として、後席の上部に向けて空気を吹き出すために利用される。吹出ユニット７は、後席のための後席フット吹出口１８を有する。後席フット吹出口１８は、右後席のための右後席フット吹出口１８ａ、および左後席のための左後席フット吹出口１８ｂを有する。後席フット吹出口１８は、主として、後席の下部に向けて空気を吹き出すために利用される。 The blowout unit 7 has a rear seat face blowout port 17. The rear seat face outlet 17 is mainly used for blowing air toward the upper portion of the rear seat. The blowing unit 7 has a rear seat foot outlet 18 for a rear seat. The rear seat foot outlet 18 has a right rear seat foot outlet 18a for the right rear seat and a left rear seat foot outlet 18b for the left rear seat. The rear seat foot outlet 18 is mainly used for blowing air toward the lower portion of the rear seat.
　車両用空調装置１において、空気は、内外気切換装置２、送風機３、および温度調節機４の順に流れる。温度調節機４によって温度調節された空気は、複数の吹出口から室内へ供給される。この実施形態では、室内の３つの領域へ供給される空気の温度が、互いに独立して温度調節される。具体的には、運転席領域と、助手席領域と、後席領域とに異なる温度の空気が供給される。この結果、車両用空調装置１は、室内の３つの領域を互いに独立して温度制御する。 In the vehicle air conditioner 1, air flows in the order of the inside / outside air switching device 2, the blower 3, and the temperature controller 4. The air whose temperature has been adjusted by the temperature controller 4 is supplied into the room from a plurality of outlets. In this embodiment, the temperature of the air supplied to the three areas in the room is adjusted independently of each other. Specifically, air of different temperatures is supplied to the driver seat area, the passenger seat area, and the rear seat area. As a result, the vehicle air conditioner 1 controls the temperature of the three indoor areas independently of each other.
　図２は、車両用空調装置１の側面を示す。温度調節機４において、クーラユニット５とヒータユニット６とは、車両の前方向ＦＲから後ろ方向ＲＲへ向かう空気の流れに沿って配置されている。ヒータユニット６は、空気を加熱するための加熱熱交換器としてのヒータコア２１を有する。ヒータコア２１は、車両において利用可能な温水を熱源とする温水ヒータである。ヒータコア２１は、温水が流されると空気を加熱する。 FIG. 2 shows a side view of the vehicle air conditioner 1. In the temperature controller 4, the cooler unit 5 and the heater unit 6 are disposed along the flow of air from the front direction FR to the rear direction RR of the vehicle. The heater unit 6 has a heater core 21 as a heating heat exchanger for heating air. The heater core 21 is a hot water heater that uses hot water available in the vehicle as a heat source. The heater core 21 heats air when warm water is flowed.
　ヒータユニット６は、電気ヒータ２１ｅを備える場合がある。電気ヒータ２１ｅは、選択的に設けられる。電気ヒータ２１ｅは、前席フット吹出口１５、および、後席フット吹出口１８に向かう空気の通路に配置されている。電気ヒータ２１ｅは、活性化されると空気を加熱する。吹出ユニット７は、車両の後ろ方向ＲＲに配置されている。 The heater unit 6 may include an electric heater 21e. The electric heater 21e is selectively provided. The electric heater 21 e is disposed in the air passage toward the front seat foot outlet 15 and the rear seat foot outlet 18. The electric heater 21e heats the air when activated. The blowing unit 7 is arranged in the rear direction RR of the vehicle.
　温度調節機４において、温度調節された空気は、吹出ユニット７の内部を、複数のドアによって選択された吹出口に向けて流れる。 In the temperature controller 4, the temperature-controlled air flows through the inside of the blowing unit 7 toward the outlets selected by the plurality of doors.
　図３において、クーラユニット５は、エバポレータ２２を有する。エバポレータ２２には、冷凍サイクルから低温低圧の冷媒が供給される。エバポレータ２２は、クーラユニット５の空気通路のすべてを横切るように配置されている。送風機３から送風された空気の全量がエバポレータ２２を通過する。 3, the cooler unit 5 has an evaporator 22. The evaporator 22 is supplied with a low-temperature and low-pressure refrigerant from the refrigeration cycle. The evaporator 22 is disposed so as to cross all the air passages of the cooler unit 5. The entire amount of air blown from the blower 3 passes through the evaporator 22.
　ヒータユニット６は、複数のエアミックスドア２３を備える。ヒータユニット６のケースは、ヒータコア２１をバイパスするバイパス通路２４を区画している。ヒータユニット６のケースは、ヒータコア２１を通過するヒータコア通路２５を区画している。ヒータコア通路２５は、ヒータコア２１の上流側から下流側にわたって形成されている。ヒータコア通路２５は、エアミックスドア２３とヒータコア２１との間から始まり、ヒータコア２１の中を通過し、ヒータコア２１の下流側において終わるように延在している。 The heater unit 6 includes a plurality of air mix doors 23. The case of the heater unit 6 defines a bypass passage 24 that bypasses the heater core 21. The case of the heater unit 6 defines a heater core passage 25 that passes through the heater core 21. The heater core passage 25 is formed from the upstream side to the downstream side of the heater core 21. The heater core passage 25 starts from between the air mix door 23 and the heater core 21, passes through the heater core 21, and extends so as to end on the downstream side of the heater core 21.
　エアミックスドア２３は、バイパス通路２４とヒータコア通路２５との入口側に設けられている。エアミックスドア２３は、エバポレータ２２とヒータコア２１との間に設けられている。エアミックスドア２３は、いわゆる、スライドドア型である。エアミックスドア２３は、揺動軸型、フィルム型など多様な構成により提供することができる。 The air mix door 23 is provided on the inlet side of the bypass passage 24 and the heater core passage 25. The air mix door 23 is provided between the evaporator 22 and the heater core 21. The air mix door 23 is a so-called slide door type. The air mix door 23 can be provided by various configurations such as a swing shaft type and a film type.
　エアミックスドア２３は、バイパス通路２４の入口面積と、ヒータコア通路２５との入口面積の比率を調節する。エアミックスドア２３は、バイパス通路２４の風量と、ヒータコア通路２５の風量との比率を調節する。バイパス通路２４を通過した空気と、ヒータコア通路２５を通過した空気とは、これらの通路の下流において混合される。よって、エアミックスドア２３は、空気の温度を調節する部材である。 The air mix door 23 adjusts the ratio of the inlet area of the bypass passage 24 and the inlet area of the heater core passage 25. The air mix door 23 adjusts the ratio of the air volume in the bypass passage 24 and the air volume in the heater core passage 25. The air that has passed through the bypass passage 24 and the air that has passed through the heater core passage 25 are mixed downstream of these passages. Therefore, the air mix door 23 is a member that adjusts the temperature of the air.
　ヒータユニット６および吹出ユニット７のケースは、複数の吹出口１３、１４、１５、１７、１８へ向かう空気通路を区画している。これらの空気通路は、デフ吹出口１３に向かう空気通路を含む。デフ吹出口１３に向かう空気通路は、ヒータコア２１の下流側（後方向ＲＲ）から、上方向ＵＰに向けて湾曲しながら延びている。吹出ユニット７は、デフ吹出口１３を開閉するためのデフドア３１を備える。 The case of the heater unit 6 and the blowout unit 7 defines an air passage toward the plurality of blowout openings 13, 14, 15, 17, and 18. These air passages include an air passage toward the differential outlet 13. The air passage toward the differential outlet 13 extends from the downstream side (rear direction RR) of the heater core 21 while curving in the upward direction UP. The blowing unit 7 includes a differential door 31 for opening and closing the differential outlet 13.
　複数の空気通路は、前席のための吹出口１４、１５に向かう空気通路を含む。前席フェース吹出口１４に向かう空気通路は、ヒータコア２１の下流側から、上方向ＵＰに向けて、デフ吹出口１３に向かう空気通路の外側に巻き付くように延びている。前席フット吹出口１５に向かう空気通路は、ヒータコア２１の下流側から、吹出ユニット７の右方向ＲＴと左方向ＬＴに向けて延びている。前席のための吹出口１４、１５に向かう空気通路は、右席のための吹出口１４ａ、１４ｂ、１５ａに向かう空気通路と、左席のための吹出口１４ｃ、１４ｄ、１５ｂに向かう空気通路とを含む。吹出ユニット７は、右席フェース吹出口１４ａ、１４ｂと、左席フェース吹出口１４ｃ、１４ｄとを、それぞれ、開閉する複数のフェースドア３２を備える。 The plurality of air passages include air passages toward the outlets 14 and 15 for the front seats. The air passage toward the front seat face outlet 14 extends from the downstream side of the heater core 21 so as to wrap around the outside of the air passage toward the differential outlet 13 in the upward direction UP. The air passage toward the front seat foot outlet 15 extends from the downstream side of the heater core 21 toward the right direction RT and the left direction LT of the outlet unit 7. The air passages toward the outlets 14 and 15 for the front seat are the air passages toward the outlets 14a, 14b and 15a for the right seat and the air passages toward the outlets 14c, 14d and 15b for the left seat. Including. The blowing unit 7 includes a plurality of face doors 32 for opening and closing the right seat face outlets 14a and 14b and the left seat face outlets 14c and 14d, respectively.
　複数の空気通路は、後席のための吹出口１７、１８に向かう空気通路を含む。後席のための吹出口１７、１８に向かう空気通路は、ヒータコア２１の下流側から、下方向ＢＴかつ後方向ＲＲへ延びている。後席のための吹出口１７、１８に向かう空気通路は、車両の中央部において、後方向ＲＲへ向けて延びている。後席のための吹出口１７、１８に向かう空気通路は、車両の床などに沿って配置された後席へ向かうダクトに接続されている。吹出ユニット７は、後席フェース吹出口１７と、後席フット吹出口１８とを、それぞれ、開閉する後席ドア３４を有する。 The plurality of air passages include air passages toward the outlets 17 and 18 for the rear seats. The air passages toward the outlets 17 and 18 for the rear seats extend from the downstream side of the heater core 21 in the downward direction BT and the rear direction RR. Air passages toward the outlets 17 and 18 for the rear seats extend in the rearward direction RR at the center of the vehicle. The air passages toward the outlets 17 and 18 for the rear seat are connected to a duct toward the rear seat arranged along the floor of the vehicle. The blowout unit 7 has a rear seat door 34 that opens and closes the rear seat face blowout port 17 and the rear seat foot blowout port 18, respectively.
　図４において、図示されるヒータユニット６のほぼ全面がエバポレータ２２に面している。ヒータユニット６は、複数の温度調節機構を提供するために、複数のエアミックスドア２３ａ、２３ｂ、２３ｃ、２３ｄ、２３ｅを備える。図中には、駆動機構としての回転軸と、歯車機構とが図示されている。ヒータユニット６のケースは、複数のバイパス通路２４ａ、２４ｂ、２４ｃ、２４ｄ、２４ｅを区画する。 4, almost the entire surface of the illustrated heater unit 6 faces the evaporator 22. The heater unit 6 includes a plurality of air mix doors 23a, 23b, 23c, 23d, and 23e in order to provide a plurality of temperature adjusting mechanisms. In the drawing, a rotating shaft as a drive mechanism and a gear mechanism are shown. The case of the heater unit 6 defines a plurality of bypass passages 24a, 24b, 24c, 24d, and 24e.
　図５は、ヒータコア２１の上における、バイパス通路２４ａ－２４ｅと、ヒータ通路２５ａ－２５ｅとの配置を示す。バイパス通路２４ａ、ヒータ通路２５ａ、バイパス通路２４ｃ、ヒータ通路２５ｃは、主として、前席の右席のための吹出口１４ａ、１４ｂ、１５ａに連通している。バイパス通路２４ｂ、ヒータ通路２５ｂ、バイパス通路２４ｄ、ヒータ通路２５ｄは、主として、前席の左席のための吹出口１４ｃ、１４ｄ、１５ｂに連通している。バイパス通路２４ａ、ヒータ通路２５ａ、バイパス通路２４ｃ、ヒータ通路２５ｃ、バイパス通路２４ｂ、ヒータ通路２５ｂ、バイパス通路２４ｄ、ヒータ通路２５ｄは、デフ吹出口１３にも連通する場合がある。バイパス通路２４ｅ、ヒータ通路２５ｅは、主として、後席のための吹出口１７、１８に連通している。バイパス通路２４ｅ、ヒータ通路２５ｅは、デフ吹出口１３にも連通する場合がある。 FIG. 5 shows the arrangement of the bypass passages 24a-24e and the heater passages 25a-25e on the heater core 21. FIG. The bypass passage 24a, the heater passage 25a, the bypass passage 24c, and the heater passage 25c mainly communicate with the air outlets 14a, 14b, and 15a for the front right seat. The bypass passage 24b, the heater passage 25b, the bypass passage 24d, and the heater passage 25d mainly communicate with the air outlets 14c, 14d, and 15b for the front left seat. The bypass passage 24a, the heater passage 25a, the bypass passage 24c, the heater passage 25c, the bypass passage 24b, the heater passage 25b, the bypass passage 24d, and the heater passage 25d may communicate with the differential outlet 13 in some cases. The bypass passage 24e and the heater passage 25e mainly communicate with the outlets 17 and 18 for the rear seats. The bypass passage 24e and the heater passage 25e may communicate with the differential outlet 13 as well.
　図４、図５において、複数のヒータ通路２５ｃ、２５ｄ、２５ｅの上流に設けられ、複数のヒータ通路２５ｃ、２５ｄ、２５ｅのそれぞれの開口面積を調節する複数のエアミックスドア２３ｃ、２３ｄ、２３ｅを備える。エアミックスドア２３ａとエアミックスドア２３ｃとは、連動している。エアミックスドア２３ａとエアミックスドア２３ｃとは、バイパス通路２４ａ、ヒータ通路２５ａ、バイパス通路２４ｃ、ヒータ通路２５ｃにおける開口面積の比率を調節する。エアミックスドア２３ａとエアミックスドア２３ｃとは、前席の右席のための温度調節部材である。エアミックスドア２３ｂとエアミックスドア２３ｄとは、連動している。エアミックスドア２３ｂとエアミックスドア２３ｄとは、バイパス通路２４ｂ、ヒータ通路２５ｂ、バイパス通路２４ｄ、ヒータ通路２５ｄにおける開口面積の比率を調節する。エアミックスドア２３ｂとエアミックスドア２３ｄとは、前席の左席のための温度調節部材である。エアミックスドア２３ｅは、バイパス通路２４ｅ、ヒータ通路２５ｅにおける開口面積の比率を調節する。エアミックスドア２３ｅは、後席のための温度調節部材である。 4 and 5, a plurality of air mix doors 23c, 23d, and 23e that are provided upstream of the plurality of heater passages 25c, 25d, and 25e and adjust the respective opening areas of the plurality of heater passages 25c, 25d, and 25e are provided. Prepare. The air mix door 23a and the air mix door 23c are interlocked. The air mix door 23a and the air mix door 23c adjust the ratio of the opening areas in the bypass passage 24a, the heater passage 25a, the bypass passage 24c, and the heater passage 25c. The air mix door 23a and the air mix door 23c are temperature adjustment members for the front right seat. The air mix door 23b and the air mix door 23d are interlocked. The air mix door 23b and the air mix door 23d adjust the ratio of the opening areas in the bypass passage 24b, the heater passage 25b, the bypass passage 24d, and the heater passage 25d. The air mix door 23b and the air mix door 23d are temperature adjusting members for the front left seat. The air mix door 23e adjusts the ratio of the opening area in the bypass passage 24e and the heater passage 25e. The air mix door 23e is a temperature adjustment member for the rear seat.
　バイパス通路２４ａは、ヒータコア２１の上を迂回する。バイパス通路２４ａとヒータ通路２５ａとは、ヒータコア２１の下流（後方向ＲＲ）において合流する。バイパス通路２４ｂは、ヒータコア２１の上を迂回する。バイパス通路２４ｂとヒータ通路２５ｂとは、ヒータコア２１の下流（後方向ＲＲ）において合流する。バイパス通路２４ｃは、ヒータコア２１の下を迂回する。バイパス通路２４ｃとヒータ通路２５ｃとは、ヒータコア２１の下流（後方向ＲＲ）において合流する。バイパス通路２４ｄは、ヒータコア２１の下を迂回する。バイパス通路２４ｄとヒータ通路２５ｄとは、ヒータコア２１の下流（後方向ＲＲ）において合流する。バイパス通路２４ｅは、ヒータコア２１の下を迂回する。バイパス通路２４ｅとヒータ通路２５ｅとは、ヒータコア２１の下流（後方向ＲＲ）において合流する。バイパス通路２４ｅおよびヒータ通路２５ｅは、バイパス通路２４ｃおよびヒータ通路２５ｃと、バイパス通路２４ｄおよびヒータ通路２５ｄとの間を通って、後方向ＲＲへ向けて延び出している。 The bypass passage 24a bypasses the heater core 21. The bypass passage 24a and the heater passage 25a merge at the downstream (rearward direction RR) of the heater core 21. The bypass passage 24b bypasses the heater core 21. The bypass passage 24b and the heater passage 25b merge downstream of the heater core 21 (rearward direction RR). The bypass passage 24 c bypasses under the heater core 21. The bypass passage 24c and the heater passage 25c merge downstream of the heater core 21 (rearward direction RR). The bypass passage 24d bypasses under the heater core 21. The bypass passage 24d and the heater passage 25d merge at the downstream (rearward direction RR) of the heater core 21. The bypass passage 24e bypasses under the heater core 21. The bypass passage 24e and the heater passage 25e merge at the downstream (rearward direction RR) of the heater core 21. The bypass passage 24e and the heater passage 25e extend between the bypass passage 24c and the heater passage 25c and the bypass passage 24d and the heater passage 25d in the rearward direction RR.
　図６は、ヒータユニット６のケースを示す。図中には、分解状態が図示されている。図７は、センタケース４１と、２つのミドルケース４４、４５との組合せ状態を示す。 FIG. 6 shows the case of the heater unit 6. In the figure, a disassembled state is shown. FIG. 7 shows a combined state of the center case 41 and the two middle cases 44 and 45.
　ヒータユニット６は、複数のケース４１－４５を有する。ヒータユニット６は、センタケース４１、および、両側のサイドケース４２、４３を備える。センタケース４１の両側から、センタケース４１に、サイドケース４２、４３が組み合わせられている。さらに、ヒータユニット６は、２つのミドルケース４４、４５を備える。ミドルケース４４は、センタケース４１と、サイドケース４２との間に配置されている。 The heater unit 6 has a plurality of cases 41-45. The heater unit 6 includes a center case 41 and side cases 42 and 43 on both sides. Side cases 42 and 43 are combined with the center case 41 from both sides of the center case 41. Further, the heater unit 6 includes two middle cases 44 and 45. The middle case 44 is disposed between the center case 41 and the side case 42.
　センタケース４１は、ヒータ通路２５ａと、ヒータ通路２５ｂとの間を仕切る仕切部材を提供する。ミドルケース４５は、センタケース４１と、サイドケース４３との間に配置されている。ミドルケース４４は、ヒータ通路２５ｃと、ヒータ通路２５ｅとの間を仕切る仕切部材を提供する。ミドルケース４５は、ヒータ通路２５ｄと、ヒータ通路２５ｅとの間を仕切る仕切部材を提供する。センタケース４１は、ヒータ通路２５ｅを仕切っていてもよい。よって、２つのミドルケース４４、４５は、ヒータコア２１の上流側および下流側において、複数のヒータ通路２５ｃ、２５ｄ、２５ｅを区画している。 The center case 41 provides a partition member that partitions the heater passage 25a and the heater passage 25b. The middle case 45 is disposed between the center case 41 and the side case 43. The middle case 44 provides a partition member that partitions the heater passage 25c and the heater passage 25e. The middle case 45 provides a partition member that partitions the heater passage 25d and the heater passage 25e. The center case 41 may partition the heater passage 25e. Therefore, the two middle cases 44 and 45 define a plurality of heater passages 25 c, 25 d, and 25 e on the upstream side and the downstream side of the heater core 21.
　ミドルケース４４、４５は、他の部材、例えばセンタケース４１およびサイドケース４２、４３より小さい部材である。また、ミドルケース４４、４５が担う機能は、他の部材、例えばセンタケース４１およびサイドケース４２、４３より少ない。このため、ミドルケース４４、４５の形状は、他の部材への影響を抑制しながら変更することができる。例えば、形状が異なるミドルケース４４、４５を数種類準備し、車種、仕様の違いに適するミドルケース４４、４５が選択されている。ミドルケース４４、４５は、車種、仕様の違いに適する形状を有することができる。 Middle cases 44 and 45 are members smaller than other members, for example, center case 41 and side cases 42 and 43. The middle cases 44 and 45 have fewer functions than other members such as the center case 41 and the side cases 42 and 43. For this reason, the shape of the middle cases 44 and 45 can be changed while suppressing the influence on other members. For example, several types of middle cases 44 and 45 having different shapes are prepared, and the middle cases 44 and 45 suitable for the difference in vehicle type and specification are selected. The middle cases 44 and 45 can have a shape suitable for the difference in vehicle type and specifications.
　図８は、温度調節機４のほぼ中央部、すなわちバイパス通路２４ｅおよびヒータ通路２５ｅにおける断面が示されている。図９は、前図における矢印ＩＸで示される部分を拡大して示している。 FIG. 8 shows a cross section of the temperature controller 4 in the substantially central portion, that is, in the bypass passage 24e and the heater passage 25e. FIG. 9 is an enlarged view of the portion indicated by the arrow IX in the previous figure.
　この実施形態では、ヒータ通路２５ａ、２５ｂは、第１のヒータ通路と呼ばれる。ヒータ通路２５ｅは、第２のヒータ通路と呼ばれる。よって、第１のヒータ通路２５ａ、２５ｂは、第２のヒータ通路２５ｅより、デフ吹出口１３に近い。しかも、第１のヒータ通路２５ａ、２５ｂは、デフ吹出口１３に空気を供給する。第２のヒータ通路２５ｅは、第１のヒータ通路２５ａ、２５ｂよりも、デフ吹出口１３から離れている。デフ吹出口１３と、第２のヒータ通路２５ｅとの間には、第１のヒータ通路２５ａ、２５ｂが横たわっている。第１のヒータ通路２５ａ、２５ｂは、第２のヒータ通路２５ｅより上側に位置している。よって、ヒータユニット６のケースは、少なくともヒータコア２１を上下に分割する隔壁を提供している。 In this embodiment, the heater passages 25a and 25b are called first heater passages. The heater passage 25e is called a second heater passage. Therefore, the first heater passages 25a and 25b are closer to the differential outlet 13 than the second heater passage 25e. In addition, the first heater passages 25 a and 25 b supply air to the differential outlet 13. The second heater passage 25e is further away from the differential outlet 13 than the first heater passages 25a and 25b. The first heater passages 25a and 25b lie between the differential outlet 13 and the second heater passage 25e. The first heater passages 25a and 25b are located above the second heater passage 25e. Therefore, the case of the heater unit 6 provides a partition that divides at least the heater core 21 into upper and lower portions.
　ヒータユニット６および吹出ユニット７を形成するケースは、隔壁４８を有する。隔壁４８は、後席のための空気通路と、デフ吹出口１３へ連通している空気通路との間を仕切っている。デフ吹出口１３へ連通している空気通路は、前席のための空気通路でもある。隔壁４８は、センタケース４１、およびミドルケース４４、４５によって提供されている。隔壁４８は、ヒータコア２１の下流において、ヒータ通路２５ｅを下方向ＢＴへ向けて徐々に曲げている。そのため、隔壁４８は、上方向ＵＰへ凸状に湾曲している。隔壁４８は、曲がり部分を有している。ヒータユニット６および吹出ユニット７を形成するケースは、連通穴５１と、障壁部５２とを有する。隔壁４８は、車両の幅方向、すなわち右方向ＲＴおよび左方向ＬＴに延びる壁である。 The case forming the heater unit 6 and the blowout unit 7 has a partition wall 48. The partition wall 48 partitions the air passage for the rear seat and the air passage communicating with the differential outlet 13. The air passage communicating with the differential outlet 13 is also an air passage for the front seat. The partition wall 48 is provided by a center case 41 and middle cases 44 and 45. The partition wall 48 gradually bends the heater passage 25e downward BT downstream of the heater core 21. Therefore, the partition wall 48 is convexly curved upward. The partition wall 48 has a bent portion. The case forming the heater unit 6 and the blowout unit 7 has a communication hole 51 and a barrier portion 52. The partition wall 48 is a wall extending in the vehicle width direction, that is, in the right direction RT and the left direction LT.
　連通穴５１は、隔壁４８によって区画されている。連通穴５１は、両方の空気通路を連通している。連通穴５１は、両方の空気通路を、ドア等の制御部材なしで、直接的に連通している。連通穴５１は、デフドア３１に依存することなく、常時連通している。連通穴５１は、ヒータコア２１より下流に位置付けられている。連通穴５１は、ヒータ通路２５ｅを区画する隔壁４８に設けられている。連通穴５１は、ヒータ通路２５ｅをヒータ通路２５ａ、２５ｂに連通させている。連通穴５１は、ヒータコア２１の下方向ＢＴを回り込むバイパス通路２４ｅの端部と対向するように位置付けられている。連通穴５１は、電気ヒータ２１ｅが設けられる場合には、電気ヒータ２１ｅより下流に位置付けられている。連通穴５１は、車両の右方向ＲＴおよび左方向ＬＴに沿って長手軸を有する長方形である。言い換えると、連通穴５１は、ヒータコア２１に沿って延びている。 The communication hole 51 is partitioned by a partition wall 48. The communication hole 51 communicates both air passages. The communication hole 51 communicates both air passages directly without a control member such as a door. The communication hole 51 is always in communication without depending on the differential door 31. The communication hole 51 is positioned downstream from the heater core 21. The communication hole 51 is provided in the partition wall 48 that partitions the heater passage 25e. The communication hole 51 allows the heater passage 25e to communicate with the heater passages 25a and 25b. The communication hole 51 is positioned so as to face the end of the bypass passage 24e that goes around the lower direction BT of the heater core 21. When the electric heater 21e is provided, the communication hole 51 is positioned downstream from the electric heater 21e. The communication hole 51 is a rectangle having a longitudinal axis along the right direction RT and the left direction LT of the vehicle. In other words, the communication hole 51 extends along the heater core 21.
　連通穴５１は、デフ吹出口１３が開かれるときに、後席のための空気通路と、デフ吹出口１３へ連通する空気通路との間に、比較的大きい圧力差が得られる位置に形成される。連通穴５１は、デフ吹出口１３が閉じられるときに、後席のための空気通路と、デフ吹出口１３へ連通する空気通路との間に、圧力差を生じにくい位置に形成される。 The communication hole 51 is formed at a position where a relatively large pressure difference is obtained between the air passage for the rear seat and the air passage communicating with the differential air outlet 13 when the differential air outlet 13 is opened. The The communication hole 51 is formed at a position where a pressure difference is unlikely to occur between the air passage for the rear seat and the air passage communicating with the differential air outlet 13 when the differential air outlet 13 is closed.
　連通穴５１は、両方の空気通路の圧力差に応じて空気の移動を許容する。連通穴５１は、少なくとも後席のための空気通路から、デフ吹出口１３へ連通している空気通路への空気流を許容することを期待されている。連通穴５１は、両方の空気通路の圧力差に起因して、後席のための空気通路から、デフ吹出口１３へ、空気を供給する。 The communication hole 51 allows air movement according to the pressure difference between both air passages. The communication hole 51 is expected to allow air flow from at least the air passage for the rear seat to the air passage communicating with the differential outlet 13. The communication hole 51 supplies air from the air passage for the rear seat to the differential outlet 13 due to the pressure difference between both air passages.
　障壁部５２は、隔壁４８に形成されている。障壁部５２は、空気流を突き当てる突き当て壁とも呼ばれる。障壁部５２は、連通穴５１より下流に位置している。言い換えると、障壁部５２は、連通穴５１より車両の後方向ＲＲに位置している。障壁部５２は、後席のための吹出口１７、１８より上流側に位置付けられている。障壁部５２は、後席ドア３４より上流側に位置付けられている。障壁部５２は、隔壁４８の曲がり部分に位置している。 The barrier portion 52 is formed in the partition wall 48. The barrier portion 52 is also called an abutting wall that abuts the air flow. The barrier portion 52 is located downstream from the communication hole 51. In other words, the barrier portion 52 is located in the rear direction RR of the vehicle from the communication hole 51. The barrier 52 is positioned upstream of the outlets 17 and 18 for the rear seat. The barrier portion 52 is positioned upstream from the rear seat door 34. The barrier portion 52 is located at the bent portion of the partition wall 48.
　障壁部５２は、後席のための空気通路に向けて突出している。障壁部５２は、隔壁４８から下方向ＢＴへ突出している。障壁部５２は、車両の右方向ＲＴおよび左方向ＬＴに沿って延びている。障壁部５２と、連通穴５１とは、互いに平行に延びている。障壁部５２は、連通穴５１の下流に、空気の流れに対向する段差を提供する。 The barrier portion 52 protrudes toward the air passage for the rear seat. The barrier 52 protrudes from the partition wall 48 in the downward direction BT. The barrier portion 52 extends along the right direction RT and the left direction LT of the vehicle. The barrier portion 52 and the communication hole 51 extend in parallel to each other. The barrier portion 52 provides a step facing the air flow downstream of the communication hole 51.
　障壁部５２は、後席のための空気通路を流れる空気流に対して、障壁となっている。障壁部５２は、ヒータ通路２５ｅを流れる空気に対して大きな抵抗を与えている。障壁部５２は、後席へ向かう風量を制限する。連通穴５１は、隔壁４８に沿って開口しており、障壁部５２は、隔壁４８から突出している。このため、障壁部５２は、連通穴５１へ流入する空気流を促進する。言い換えると、障壁部５２は、デフ吹出口１３へ空気を誘導する。 The barrier portion 52 is a barrier against the airflow flowing through the air passage for the rear seat. The barrier portion 52 gives a large resistance to the air flowing through the heater passage 25e. The barrier 52 restricts the amount of air flowing toward the rear seat. The communication hole 51 is open along the partition wall 48, and the barrier portion 52 protrudes from the partition wall 48. For this reason, the barrier portion 52 promotes the air flow flowing into the communication hole 51. In other words, the barrier portion 52 guides air to the differential outlet 13.
　図１０は、連通穴５１を示す。連通穴５１は、後席のための空気通路と、前席のための空気通路とを仕切る隔壁４８に形成されている。隔壁４９は、複数のケースの合わせ面４９を有する。この実施形態では、隔壁４９は、センタケース４１とミドルケース４４、４５とによって形成されている。センタケース４１とミドルケース４４、４５とは、合わせ面４９において突き合せられている。合わせ面４９は、平行な平面でもよい。合わせ面４９は、凹凸嵌合部でもよい。 FIG. 10 shows the communication hole 51. The communication hole 51 is formed in a partition wall 48 that partitions an air passage for the rear seat and an air passage for the front seat. The partition wall 49 includes a plurality of case mating surfaces 49. In this embodiment, the partition wall 49 is formed by a center case 41 and middle cases 44 and 45. The center case 41 and the middle cases 44 and 45 are abutted at the mating surface 49. The mating surface 49 may be a parallel plane. The mating surface 49 may be an uneven fitting portion.
　この実施形態では、ヒータユニット６および吹出ユニット７を提供するケースは、複数の部分ケース４１、４２、４３、４４、４５を有する。連通穴５１は、複数の部分ケースの合わせ面４９に面する切欠５１ａによって形成されている。 In this embodiment, the case for providing the heater unit 6 and the blowout unit 7 has a plurality of partial cases 41, 42, 43, 44, 45. The communication hole 51 is formed by a notch 51a facing the mating surface 49 of the plurality of partial cases.
　連通穴５１は、合わせ面４９と接している。連通穴５１は、合わせ面４９をまたいでいる。連通穴５１は、合わせ面４９に接する切欠５１ａによって形成されている。切欠５１ａは、合わせ面４９に開口する凹部である。切欠５１ａは、合わせ面４９からケースに向けて拡がっている。切欠５１ａは、合わせ面４９から両方のケースへ向けて、または片方のケースのみに向けて拡がっている。切欠５１ａは、合わせ面４９からセンタケース４１に向けて拡がっていてもよい。切欠５１ａは、合わせ面４９からミドルケース４４、４５に向けて拡がっていてもよい。連通穴５１は、切欠５１ａによって提供されている。これにより、複雑な成形型を必要とすることなく、連通穴５１を提供することができる。 The communication hole 51 is in contact with the mating surface 49. The communication hole 51 straddles the mating surface 49. The communication hole 51 is formed by a notch 51 a that contacts the mating surface 49. The notch 51 a is a recess opening in the mating surface 49. The notch 51a extends from the mating surface 49 toward the case. The notch 51a extends from the mating surface 49 toward both cases or toward only one case. The notch 51 a may extend from the mating surface 49 toward the center case 41. The notch 51 a may extend from the mating surface 49 toward the middle cases 44 and 45. The communication hole 51 is provided by a notch 51a. Thereby, the communication hole 51 can be provided without requiring a complicated mold.
　車両用空調装置１は、デフ吹出口１３へ空気を提供するデフロスタモードを有する。この実施形態のように、ヒータコア１２が複数のヒータ通路２５によって分割される場合、デフ吹出口１３へ供給される空気量が不足する場合がある。例えば、ヒータ通路２５ｅを通過する空気が後席のための空気通路のみに供給されると、ヒータコア１２の加熱能力の一部が後席のみに使われ、デフロスタ能力が低下する。 The vehicle air conditioner 1 has a defroster mode for providing air to the differential outlet 13. When the heater core 12 is divided by the plurality of heater passages 25 as in this embodiment, the amount of air supplied to the differential outlet 13 may be insufficient. For example, if the air passing through the heater passage 25e is supplied only to the air passage for the rear seat, a part of the heating capability of the heater core 12 is used only for the rear seat, and the defroster capability is reduced.
　これに対して、この実施形態では、デフロスタモードにおいてデフドア３１がデフ吹出口１３を開く。後席ドア３４が、後席のための吹出口１７、１８を開く場合には、ヒータ通路２５ｅを流れる空気に対して障壁部５２が抵抗となる。これにより、ヒータ通路２５ｅを流れる空気は、連通穴５１を通して、前席のための空気通路に流れ、デフ吹出口１３にも流れる。さらに、後席ドア３４が、後席のための吹出口１７、１８を閉じる場合には、ヒータ通路２５ｅの空気は、逃げ場を求めて連通穴５１から前席のための空気通路に流れ、デフ吹出口１３にも流れる。これにより、デフ吹出口１３からの風量が補われる。連通穴５１の位置は、デフドア３１によりデフ吹出口１３が開くとき、ヒータ通路２５ｅとヒータ通路２５ａ、２５ｂとの間に生じる圧力差により、ヒータ通路２５ｅから、連通穴５１を通り、ヒータ通路２５ａ、２５ｂへ流れる空気流を生じる位置である。 In contrast, in this embodiment, the differential door 31 opens the differential outlet 13 in the defroster mode. When the rear seat door 34 opens the outlets 17 and 18 for the rear seat, the barrier portion 52 becomes a resistance against the air flowing through the heater passage 25e. Thereby, the air flowing through the heater passage 25 e flows through the communication hole 51 to the air passage for the front seat and also flows to the differential outlet 13. Further, when the rear seat door 34 closes the outlets 17 and 18 for the rear seat, the air in the heater passage 25e flows from the communication hole 51 to the air passage for the front seat in order to seek escape. It also flows to the air outlet 13. Thereby, the air volume from the differential outlet 13 is supplemented. The position of the communication hole 51 is such that when the differential outlet 31 is opened by the differential door 31, a pressure difference generated between the heater passage 25e and the heater passages 25a and 25b causes the heater passage 25a to pass through the communication hole 51 from the heater passage 25e. , 25b.
　デフロスタモード以外の他のモードにおいてデフドア３１がデフ吹出口１３を閉じる場合がある。この場合、後席のための空気通路と、前席のための空気通路との間の圧力差は小さい。このため、連通穴５１を通る空気量は抑制される。これにより、後席のための空気通路、すなわちバイパス通路２４ｅとヒータ通路２５ｅとによる後席に対する独立した温度制御が維持される。 The differential door 31 may close the differential outlet 13 in modes other than the defroster mode. In this case, the pressure difference between the air passage for the rear seat and the air passage for the front seat is small. For this reason, the amount of air passing through the communication hole 51 is suppressed. Thus, independent temperature control for the rear seat by the air passage for the rear seat, that is, the bypass passage 24e and the heater passage 25e is maintained.
　この実施形態によると、前席、後席といった複数の領域への独立した温度制御が提供される。しかも、この独立した温度制御を維持しながら、デフ吹出口１３が利用される場合の風量不足が抑制される。別の観点では、複数のケースの合わせ面４９における切欠５１ａによって連通穴５１が形成される。また、連通穴５１は常時連通している。このため、高価なドア機構を要することなく、独立した温度制御を維持しながら、デフ吹出口１３が利用される場合の風量不足が抑制される。 According to this embodiment, independent temperature control to a plurality of areas such as the front seat and the rear seat is provided. In addition, the air volume shortage when the differential outlet 13 is utilized is suppressed while maintaining this independent temperature control. From another viewpoint, the communication hole 51 is formed by the notch 51a in the mating surfaces 49 of the plurality of cases. The communication hole 51 is always in communication. For this reason, lack of an air volume when the differential outlet 13 is utilized is suppressed, maintaining an independent temperature control, without requiring an expensive door mechanism.
　他の実施形態
　この明細書における開示は、例示された実施形態に制限されない。開示は、例示された実施形態と、それらに基づく当業者による変形態様を包含する。例えば、開示は、実施形態において示された部品および／または要素の組み合わせに限定されない。開示は、多様な組み合わせによって実施可能である。開示は、実施形態に追加可能な追加的な部分をもつことができる。開示は、実施形態の部品および／または要素が省略されたものを包含する。開示は、ひとつの実施形態と他の実施形態との間における部品および／または要素の置き換え、または組み合わせを包含する。開示される技術的範囲は、実施形態の記載に限定されない。開示されるいくつかの技術的範囲は、請求の範囲の記載によって示され、さらに請求の範囲の記載と均等の意味及び範囲内での全ての変更を含むものと解されるべきである。 Other Embodiments The disclosure herein is not limited to the illustrated embodiments. The disclosure encompasses the illustrated embodiments and variations by those skilled in the art based thereon. For example, the disclosure is not limited to the combinations of parts and / or elements shown in the embodiments. The disclosure can be implemented in various combinations. The disclosure may have additional parts that can be added to the embodiments. The disclosure includes those in which parts and / or elements of the embodiments are omitted. The disclosure encompasses the replacement or combination of parts and / or elements between one embodiment and another. The technical scope disclosed is not limited to the description of the embodiments. Some technical scope disclosed is shown by the description of the scope of claims, and should be understood to include all modifications within the meaning and scope equivalent to the description of the scope of claims.
　上記実施形態では、隔壁４８は、センタケース４１およびミドルケース４４、４５によって提供されている。これに代えて、隔壁４８は、センタケース４１だけ、または、ミドルケース４４、４５だけでも提供できる。さらに、隔壁４８は、センタケース４１およびサイドケース４２、４３によって提供されていてもよい。また、隔壁４８を提供する部材が追加的に設けられていてもよい。このように隔壁４８は、多様な部材によって提供できる。 In the above embodiment, the partition wall 48 is provided by the center case 41 and the middle cases 44 and 45. Alternatively, the partition wall 48 can be provided by only the center case 41 or the middle cases 44 and 45. Further, the partition wall 48 may be provided by the center case 41 and the side cases 42 and 43. Further, a member for providing the partition wall 48 may be additionally provided. Thus, the partition wall 48 can be provided by various members.
　上記実施形態では、連通穴５１は、ケースの合わせ面４９に形成された切欠５１ａによって提供している。これに代えて、または加えて、連通穴５１は、独立した開口部によって提供されてもよい。また、連通穴５１は、複数の切欠または複数の開口部によって提供されてもよい。 In the above embodiment, the communication hole 51 is provided by the notch 51a formed in the mating surface 49 of the case. Alternatively or additionally, the communication hole 51 may be provided by an independent opening. Further, the communication hole 51 may be provided by a plurality of notches or a plurality of openings.
　上記実施形態では、隔壁４８に開設された切欠５１ａの全体が連通穴５１として利用されている。これに加えて、連通穴５１の面積を調節するための調節部材が付加されてもよい。例えば、複数の機種に応じて異なる面積の連通穴５１を設けるために、複数の調節部材を準備し、切欠５１ａに付加することができる。例えば、やや大きめの面積を提供する切欠５１ａを形成し、調節部材によって面積を小さく調節して、連通穴５１を提供する。調節部材としては、樹脂板、テープなどの板状部材を用いることができる。また、複数の段階的に切除可能な切欠５１ａを設けてもよい。この場合、切除される段階数を選択することにより、求められる面積の連通穴５１を形成することができる。 In the above embodiment, the entire cutout 51 a opened in the partition wall 48 is used as the communication hole 51. In addition to this, an adjustment member for adjusting the area of the communication hole 51 may be added. For example, in order to provide the communication holes 51 having different areas according to a plurality of models, a plurality of adjusting members can be prepared and added to the notches 51a. For example, the notch 51a that provides a slightly larger area is formed, and the communication hole 51 is provided by adjusting the area to be small by the adjusting member. As the adjustment member, a plate-like member such as a resin plate or a tape can be used. Moreover, you may provide the notch 51a which can be excised in steps. In this case, the communication hole 51 having the required area can be formed by selecting the number of stages to be excised.
　上記実施形態では、図示される位置に連通穴５１が設けられている。これに代えて、または加えて、図示とは異なる位置に連通穴５１を設けてもよい。例えば、後席のための空気通路から、右方向ＲＴおよび／または左方向ＬＴの壁面に連通穴５１が形成されてもよい。言い換えると、車両の高さ方向、すなわち上方向ＵＰまたは下方向ＢＴに延びる縦壁に連通穴５１が形成されていてもよい。 In the above embodiment, the communication hole 51 is provided at the illustrated position. Instead of or in addition to this, the communication hole 51 may be provided at a position different from that shown in the figure. For example, the communication hole 51 may be formed on the wall surface in the right direction RT and / or the left direction LT from the air passage for the rear seat. In other words, the communication hole 51 may be formed in the vertical wall extending in the vehicle height direction, that is, in the upward direction UP or the downward direction BT.

Claims (10)

  1. 　空気を加熱するヒータコア（２１）と、
    　車両のウインドシールドに向けて空気を吹き出すデフ吹出口（１３）と、
    　前記ヒータコアを通過する複数のヒータ通路を仕切るケース（４１、４２、４３、４４、４５）とを備え、
    　複数の前記ヒータ通路は、
    　前記デフ吹出口に近く、しかも前記デフ吹出口に空気を供給する第１のヒータ通路（２５ａ、２５ｂ）と、
    　前記デフ吹出口との間に、前記第１のヒータ通路が横たわっている第２のヒータ通路（２５ｅ）とを有し、
    　前記ケースは、前記ヒータコアの下流側において、前記第２のヒータ通路を前記第１のヒータ通路に連通する連通穴（５１）を有する車両用空調装置。     A heater core (21) for heating air;
    A differential outlet (13) for blowing air toward the windshield of the vehicle;
    A case (41, 42, 43, 44, 45) for partitioning a plurality of heater passages passing through the heater core;
    The plurality of heater passages are
    A first heater passage (25a, 25b) that is close to the differential outlet and supplies air to the differential outlet;
    A second heater passage (25e) in which the first heater passage lies, between the differential outlet and
    The vehicle air conditioner, wherein the case has a communication hole (51) communicating the second heater passage with the first heater passage on the downstream side of the heater core.
  2. 　前記連通穴は、長方形であり、
    　前記ヒータコアに沿って延びている請求項１に記載の車両用空調装置。     The communication hole is rectangular,
    The vehicle air conditioner according to claim 1, extending along the heater core.
  3. 　さらに、前記デフ吹出口を開閉するデフドア（３１）を備え、
    　前記連通穴は、前記デフドアに依存することなく、常時連通している請求項１または請求項２に記載の車両用空調装置。     Furthermore, a differential door (31) for opening and closing the differential outlet is provided,
    The vehicle air conditioner according to claim 1 or 2, wherein the communication hole communicates constantly without depending on the differential door.
  4. 　前記連通穴の位置は、前記デフドアにより前記デフ吹出口が開くとき、前記第２のヒータ通路と前記第１のヒータ通路との間に生じる圧力差により、前記第２のヒータ通路から、前記連通穴を通り、前記第１のヒータ通路へ流れる空気流を生じる位置である請求項３に記載の車両用空調装置。 The position of the communication hole is determined from the second heater passage due to a pressure difference generated between the second heater passage and the first heater passage when the differential outlet is opened by the differential door. The vehicle air conditioner according to claim 3, which is a position where an air flow that flows through the hole and flows to the first heater passage is generated.
  5. 　さらに、前記連通穴より下流に設けられ、前記第２のヒータ通路を流れる空気に対して障壁となる障壁部（５２）を備える請求項１から請求項４のいずれかに記載の車両用空調装置。 Furthermore, the vehicle air conditioner in any one of Claims 1-4 provided with the barrier part (52) which is provided downstream from the said communicating hole and becomes a barrier with respect to the air which flows through the said 2nd heater channel | path. .
  6. 　前記ケースは、複数の部分ケース（４１、４２、４３、４４、４５）を有し、
    　前記連通穴は、複数の前記部分ケースの合わせ面（４９）に面する切欠（５１ａ）によって形成されている請求項１から請求項５のいずれかに記載の車両用空調装置。     The case has a plurality of partial cases (41, 42, 43, 44, 45),
    The vehicle air conditioner according to any one of claims 1 to 5, wherein the communication hole is formed by a notch (51a) facing a mating surface (49) of the plurality of partial cases.
  7. 　複数の前記ヒータ通路の上流に設けられ、複数の前記ヒータ通路のそれぞれの開口面積を調節する複数のエアミックスドア（２３ａ、２３ｂ、２３ｃ、２３ｄ、２３ｅ）を備える請求項１から請求項６のいずれかに記載の車両用空調装置。 7. The apparatus according to claim 1, further comprising a plurality of air mix doors (23 a, 23 b, 23 c, 23 d, and 23 e) that are provided upstream of the plurality of heater passages and adjust an opening area of each of the plurality of heater passages. The vehicle air conditioner according to any one of the above.
  8. 　さらに、前記ヒータコアと前記連通穴との間の前記第２のヒータ通路には、給電されて発熱する電気ヒータ（２１ｅ）が設けられている請求項１から請求項７のいずれかに記載の車両用空調装置。 The vehicle according to any one of claims 1 to 7, further comprising an electric heater (21e) that is supplied with power and generates heat in the second heater passage between the heater core and the communication hole. Air conditioner.
  9. 　複数の前記ヒータ通路は、車両の室内の複数の領域に対応付けられている請求項１から請求項８のいずれかに記載の車両用空調装置。 The vehicle air conditioner according to any one of claims 1 to 8, wherein the plurality of heater passages are associated with a plurality of regions in a vehicle interior.
  10. 　複数の前記領域は、車両の席に対応する領域であって、前席の右席領域、前席の左席領域、および後席領域を含む請求項９に記載の車両用空調装置。 10. The vehicle air conditioner according to claim 9, wherein the plurality of areas are areas corresponding to vehicle seats, and include a front right seat area, a front left seat area, and a rear seat area.
PCT/JP2017/042494 2017-01-30 2017-11-28 Vehicle air conditioning device WO2018139032A1 (en)

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JP7089490B2 (en) 2019-03-06 2022-06-22 マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング Vehicle air conditioner

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JPS532859U (en) * 1976-06-25 1978-01-12
JPS60164415U (en) * 1984-04-11 1985-10-31 日産自動車株式会社 Automotive air conditioner
JPH07315032A (en) * 1994-05-25 1995-12-05 Calsonic Corp Heater unit for automobile air conditioner
JPH10230734A (en) * 1996-10-07 1998-09-02 Denso Corp Air-conditioner for vehicle
JPH10236128A (en) * 1997-02-24 1998-09-08 Denso Corp Air conditioning device for vehicle
WO2016194674A1 (en) * 2015-06-01 2016-12-08 株式会社デンソー Air-conditioning device for vehicles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532859U (en) * 1976-06-25 1978-01-12
JPS60164415U (en) * 1984-04-11 1985-10-31 日産自動車株式会社 Automotive air conditioner
JPH07315032A (en) * 1994-05-25 1995-12-05 Calsonic Corp Heater unit for automobile air conditioner
JPH10230734A (en) * 1996-10-07 1998-09-02 Denso Corp Air-conditioner for vehicle
JPH10236128A (en) * 1997-02-24 1998-09-08 Denso Corp Air conditioning device for vehicle
WO2016194674A1 (en) * 2015-06-01 2016-12-08 株式会社デンソー Air-conditioning device for vehicles

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