WO2023198859A1 - Climatiseur de véhicule - Google Patents

Climatiseur de véhicule Download PDF

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Publication number
WO2023198859A1
WO2023198859A1 PCT/EP2023/059728 EP2023059728W WO2023198859A1 WO 2023198859 A1 WO2023198859 A1 WO 2023198859A1 EP 2023059728 W EP2023059728 W EP 2023059728W WO 2023198859 A1 WO2023198859 A1 WO 2023198859A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
downstream
upstream
air passage
heater
Prior art date
Application number
PCT/EP2023/059728
Other languages
English (en)
Inventor
Daisuke Araki
Original Assignee
Valeo Systemes Thermiques
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 Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Priority to CN202380014050.2A priority Critical patent/CN118103232A/zh
Publication of WO2023198859A1 publication Critical patent/WO2023198859A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H1/00692—Damper doors moved by translation, e.g. curtain doors
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H1/00671—Damper doors moved by rotation; Grilles
    • B60H1/00678—Damper doors moved by rotation; Grilles the axis of rotation being in the door plane, e.g. butterfly doors

Definitions

  • the present invention relates to a vehicular air conditioner including a butterfly-type mix door.
  • Background Art Many vehicles such as passenger vehicles include a vehicular air conditioner for conditioning a temperature by taking in outside air or inside air into a vehicle interior.
  • PTL 1 discloses a vehicular air conditioner in the related art.
  • the vehicular air conditioner disclosed in PTL 1 includes a case in which air flows, a cooling heat exchanger capable of cooling the air flowing through the case, and a heater capable of heating the air flowing out from the cooling heat exchanger.
  • a warm air passage through which the air flowing out from a first heater or a second heater flows, a cool air passage through which the air flowing out from the cooling heat exchanger flows without being heated by the first heater, a mix door capable of adjusting a ratio of the air flowing through the warm air passage to the air flowing through the cool air passage, and a mix space in which the air flowing through the warm air passage and the air flowing through the cool air passage merge are formed.
  • the mix door is a so-called butterfly-type mix door, and includes a rotation shaft, and an upstream extension door and a downstream extension door that extend from the rotation shaft in substantially opposite directions to each other.
  • a vehicular air conditioner disclosed in PTL 2 includes a case in which air flows, a cooling heat exchanger capable of cooling the air flowing through the case, and a heater capable of heating the air flowing out from the cooling heat exchanger.
  • a heating heat exchanger is provided with a first heater, and a second heater which has substantially the same size as the first heater and is capable of heating all of air passing through the warm air passage. Such a second heater can reliably compensate for insufficient heating of air flowing through the first heater.
  • Citation List Patent Literature [0008] PTL 1: JP2017-132380A PTL 2: JP2017-159851A Summary of Invention Technical Problem [0009] When the mix door is located at a full-cool position at which a ratio of the air flowing through the warm air passage is minimized, the downstream extension door of the mix door closes a downstream end of the warm air passage.
  • Both heaters of the vehicular air conditioners in PTL 1 and PTL 2 include the first heater and the second heater that are disposed along a flow direction of the air.
  • the case accommodates two heaters, and a space occupied by the two heaters in the case is larger as compared with that of the vehicular air conditioner including a single heater.
  • An object of the invention is to provide a technique capable of preventing an increase in airflow resistance of a warm air passage in a vehicular air conditioner including a plurality of heaters and a butterfly-type mix door.
  • the invention provides a vehicular air conditioner (10) including: a case (20) in which air flows; a cooling heat exchanger (13) capable of cooling the air flowing through the case (20); a first heater (31) capable of heating the air flowing out from the cooling heat exchanger (13); a second heater (36) capable of heating the air flowing out from the first heater (31); a warm air passage (50) through which the air flowing out from the second heater (36) flows; a cool air passage (40) through which the air flowing out from the cooling heat exchanger (13) flows without being heated by the first heater (31); a mix door (60) capable of adjusting a ratio of the air flowing through the warm air passage (50) to the air flowing through the cool air passage (40); and a mix space (27) in which the air flowing through the warm air passage (50) and the air flowing through the cool air passage (40) merge, in which the mix door (60) includes a butterfly door portion (61) including a rotation shaft (62) substantially orthogonal to a flow direction of the air flowing through the cool air
  • the downstream door diameter (R2) at the full-cool position is larger than the downstream door diameter (R2) at the full-hot position. That is, when a downstream door (80) closes a downstream end of the warm air passage (50), the downstream door diameter (R2) is larger. Therefore, it is unnecessary to bend a wall surface of the warm air passage (50) in a manner of being close to the downstream door (80).
  • the warm air passage (50) is linear, and an increase in airflow resistance of the air flowing through the warm air passage (50) can be prevented.
  • the downstream driven door (83) is bent toward downstream of the downstream extension door (81) in the warm air passage (50).
  • FIG. 1 is a perspective view of a vehicular air conditioner according to an embodiment.
  • FIG. 2 is a schematic cross-sectional view of the vehicular air conditioner illustrated in FIG. 1.
  • FIG. 3 is a view (a portion surrounded by a line 3 in FIG. 2) illustrating a configuration of a mix door at a temperature conditioning position and an air flow.
  • FIG. 4A is a view illustrating the mix door at a full-cool position.
  • FIG. 4B FIG.
  • FIG. 4B is a view illustrating the mix door at the temperature conditioning position.
  • FIG. 4C is a view illustrating the mix door at a full-hot position.
  • FIG. 5 is a view illustrating the configuration of the mix door at the full-hot position and the air flow.
  • FIG. 6 is a view illustrating the configuration of the mix door at the full-cool position and the air flow.
  • FIG. 7A is a schematic view of a vehicular air conditioner according to a comparative example in the related art.
  • FIG. 7B is a schematic view of the vehicular air conditioner according to the embodiment.
  • FIG. 1 illustrates a vehicular air conditioner 10 that adjusts a temperature by taking in outside air or inside air into a vehicle interior.
  • the vehicular air conditioner 10 is mounted on, for example, a passenger vehicle, and extends in a left-right direction at the front part of the vehicle interior.
  • the vehicular air conditioner 10 includes an air blower 11 that blows inhaled air, and a temperature regulator 12 that regulates a temperature of air blown from the air blower 11 and blows out conditioned air into the vehicle interior.
  • An electric motor and an impeller driven by the electric motor are provided in the air blower 11. When the impeller rotates, air inside and/or outside the vehicle interior is inhaled into the air blower 11.
  • the temperature regulator 12 includes a case 20 in which the air blown from the air blower 11 flows.
  • Openings 21 to 23 opened for blowing out the conditioned air are formed in the case 20.
  • the openings 21 to 23 include a defroster opening 21 for blowing the conditioned air toward a windshield to remove fog on the windshield, vent openings 22 for blowing the conditioned air toward an upper body of an occupant on a front seat, and foot openings 23 and 23 for blowing the conditioned air toward feet of the occupant on the front seat.
  • FIG. 2 is a cross-sectional view of the temperature regulator 12. FIGS. 1 and 2 are referred to in combination.
  • the defroster opening 21 can be opened and closed by an opening and closing member 17.
  • the vent openings 22 can be opened and closed by an opening and closing member 18.
  • the foot openings 23 and 23 can be opened and closed by opening and closing members 19 and 19.
  • the case 20 of the temperature regulator 12 includes an intake portion 24 that is open to take in the air blown from the air blower 11 into the case 20.
  • the case 20 accommodates a cooling heat exchanger 13 capable of cooling the air flowing out from the intake portion 24. Gaps between the cooling heat exchanger 13 and the case 20 are preferably filled with sealing materials 14 and 14.
  • the case 20 accommodates a first heater 31 capable of heating the air flowing out from the cooling heat exchanger 13, and a second heater 36 capable of heating the air flowing out from the first heater 31 by being disposed downstream of the first heater 31.
  • the case 20 includes a first heater support portion 25 that supports an upper end portion of the first heater 31, and a second heater support portion 26 that supports an upper end portion of the second heater 36.
  • the first heater support portion 25 and the second heater support portion 26 are integrated to form a heater support portion 29.
  • a gap between the heater support portion 29 and the first heater 31 and a gap between the heater support portion 29 and the second heater 36 are preferably filled with sealing materials.
  • a gap between the case 20 and the first heater 31 and a gap between the case 20 and a lower end portion of the second heater 36 are preferably filled with sealing materials.
  • the first heater 31 and the second heater 36 may be any of a heater that generates heat by electric power, a heater through which warm water flows, and a heater through which a high-temperature refrigerant flows. In addition, the first heater 31 and the second heater 36 may have different heat sources. [0030] [Warm Air Passage, Cool Air Passage, and Mix Space] In the case 20, the warm air passage 50 through which the air flowing out from the first heater 31 and the second heater 36 flows, a cool air passage 40 through which the air flowing out from the cooling heat exchanger 13 flows in a cool-air state without being heated by the first heater 31 and the second heater 36, and a mix space 27 in which the air flowing through the warm air passage 50 and the air flowing through the cool air passage 40 merge are formed.
  • a mix door 60 capable of adjusting a ratio of the air flowing through the warm air passage 50 to the air flowing through the cool air passage 40 is provided in the case 20.
  • the mix door 60 includes a butterfly door portion 61 including two plate-shaped doors 71 and 81 capable of swinging about a rotation shaft 62.
  • the butterfly door portion 61 includes the rotation shaft 62 whose axis extends in a direction substantially orthogonal to a flow direction of the air flowing through the cool air passage 40, the upstream extension door 71 extending from the rotation shaft 62 and being movable upstream of the rotation shaft 62, and the downstream extension door 81 extending from the rotation shaft 62 in a direction substantially opposite to a direction in which the upstream extension door 71 extends.
  • An upstream driven door 73 having a plate shape is connected to the upstream extension door 71 via an upstream hinge 72.
  • the upstream driven door 73 is preferably provided at an extended tip end of the upstream extension door 71 or in the vicinity of the extended tip end of the upstream extension door 71.
  • Each door has a rectangular shape.
  • An upstream intermediate sealing member 77 is provided at an edge of the upstream extension door 71.
  • An upstream tip end sealing member 78 is provided at an edge of the upstream driven door 73.
  • the upstream driven door 73 can swing about the upstream hinge 72 with respect to the upstream extension door 71.
  • An upstream groove 91 capable of guiding swinging of the upstream driven door 73 is formed on side wall surfaces 90 and 90 (see also FIG. 1) of the case 20.
  • An upstream pin 74 that is slidable with respect to the upstream groove 91 is attached to the vicinity of a tip end of the upstream driven door 73.
  • a trajectory of the upstream driven door 73 can be appropriately changed.
  • a downstream driven door 83 having a plate shape is connected to the downstream extension door 81 via a downstream hinge 82.
  • the downstream driven door 83 is preferably provided at an extended tip end of the downstream extension door 81 or in the vicinity of the extended tip end of the downstream extension door 81.
  • a downstream intermediate sealing member 87 is provided at an edge of the downstream extension door 81.
  • a downstream tip end sealing member 88 is provided at an edge of the downstream driven door 83.
  • the downstream driven door 83 can swing about the downstream hinge 82 with respect to the downstream extension door 81.
  • a downstream groove 92 capable of guiding swinging of the downstream driven door 83 is formed on the side wall surfaces 90 and 90 of the case 20.
  • a downstream pin 84 that is slidable with respect to the downstream groove 92 is attached to the vicinity of a tip end of the downstream driven door 83.
  • a trajectory of the downstream driven door 83 can be appropriately changed.
  • a downstream door angle ⁇ 2 formed by the downstream driven door 83 and the downstream extension door 81 is also variable.
  • the downstream door angle ⁇ 2 is always 180 degrees or less.
  • the downstream extension door 81, the downstream hinge 82, and the downstream driven door 83 are collectively referred to as a downstream door 80.
  • the cool air passage 40 includes an upstream cool air passage 41 between the cooling heat exchanger 13 and a swing range of the upstream door 70, a mix space side cool air passage 42 in which cool air flowing from the upstream cool air passage 41 is branched by the upstream door 70 and flows toward the mix space 27, and a heater-side cool air passage 43 through which the cool air flowing from the upstream cool air passage 41 is branched by the upstream door 70 and flows toward the first heater 31.
  • the warm air passage 50 includes an inter-heater warm air passage 51 through which warm air flowing out from the first heater 31 toward the second heater 36 flows, and a downstream warm air passage 53 through which the warm air flowing out from the second heater 36 flows.
  • the first heater 31 includes a first inflow surface 32 into which cool air flows, and a first outflow surface 33 from which warm air flows out that is the cool air flowing in from the first inflow surface 32 and heated inside the first heater 31.
  • the second heater 36 includes a second inflow surface 37 into which the warm air flowing out from the first outflow surface 33 flows, and a second outflow surface 38 from which warm air flows out which is the warm air flowing in from the second inflow surface 37 and heated inside the second heater 36.
  • the heater support portion 29 includes an intermediate portion 29a extending from the first heater support portion 25 to the second heater support portion 26. That is, the intermediate portion 29a fills a gap between the first heater support portion 25 and the second heater support portion 26. The warm air flowing out from the first outflow surface 33 of the first heater 31 can flow into the second inflow surface 37 of the second heater 36 without bypassing the second heater 36.
  • a block portion 29b is provided between the rotation shaft 62 and the heater support portion 29 to reduce or prevent a part of the cool air flowing into the heater-side cool air passage 43 from bypassing the first heater 31 and flowing into the downstream warm air passage 53.
  • the block portion 29b is a plate-shaped portion that is integrated with the heater support portion 29 and extends from the first heater support portion 25 to the rotation shaft 62.
  • a tip end of the block portion 29b is located in the vicinity of the rotation shaft 62, and substantially prevents the cool air flowing into the heater-side cool air passage 43 from flowing into the downstream warm air passage 53.
  • FIG. 4A illustrates the mix door 60 located at a full- cool position at which a ratio of the air flowing through the warm air passage 50 is minimized.
  • FIG. 4B illustrates the mix door 60 located at a temperature conditioning position at which neither the ratio of the air flowing through the warm air passage 50 nor a ratio of the air flowing through the cool air passage 40 is maximized.
  • FIG. 4C illustrates the mix door 60 located at a full- hot position at which the ratio of the air flowing through the warm air passage 50 is maximized.
  • [Swinging of Downstream Driven Door] Reference is made to FIG. 3 and FIGS. 4A to 4C. As the mix door 60 moves from the full-cool position to the full-hot position, both the downstream door angle ⁇ 2 and the downstream door diameter R2 decrease.
  • the upstream tip end sealing member 78 is separated from a wall surface 20b at an upstream end of the heater- side cool air passage 43. That is, the upstream end of the heater-side cool air passage 43 is open. Cool air C2 can flow from the upstream cool air passage 41 into the heater- side cool air passage 43. [0056] The cool air C2 flowing into the first heater 31 from the heater-side cool air passage 43 flows out from the first outflow surface 33 as warm air H1, flows through the inter- heater warm air passage 51, and flows into the second heater 36 from the second inflow surface 37 of the second heater 36.
  • the warm air H1 flowing into the second heater 36 is further heated, flows out as warm air H2 from the second outflow surface 38 of the second heater 36, and flows into the downstream warm air passage 53.
  • the downstream intermediate sealing member 87 is separated from a sealing surface 29c provided on the heater support portion 29.
  • the downstream tip end sealing member 88 is separated from a wall surface 20c at a downstream end of the downstream warm air passage 53. That is, the downstream end of the downstream warm air passage 53 is open.
  • the warm air H2 flows into the mix space 27 from the downstream warm air passage 53.
  • the upstream intermediate sealing member 77 is in close contact with the wall surface 20a at the downstream end of the mix space side cool air passage 42. That is, the downstream end of the mix space side cool air passage 42 is closed.
  • the upstream tip end sealing member 78 is separated from the wall surface 20b at the upstream end of the heater-side cool air passage 43. That is, the upstream end of the heater-side cool air passage 43 is open. Cool air C3 flows into the heater-side cool air passage 43 from the upstream cool air passage 41.
  • the downstream door 80 is in a most bent state.
  • the downstream door diameter R2 (FIG.
  • the cool air C3 flows through the heater-side cool air passage 43 and flows into the first heater 31 from the first inflow surface 32 of the first heater 31.
  • the cool air C3 heated by the first heater 31 flows out as warm air H3 from the first outflow surface 33 of the first heater 31.
  • the downstream intermediate sealing member 87 is in close contact with the sealing surface 29c of the heater support portion 29.
  • the downstream extension door 81 prevents a part of the cool air C3 from bypassing the first heater 31 and the second heater 36. That is, a part of the cool air C3 is prevented from bypassing the first heater 31 and the second heater 36 and flowing into the downstream warm air passage 53.
  • the warm air H3 flows into the second heater 36 from the second inflow surface 37 of the second heater 36.
  • the warm air H3 is heated by the second heater 36 and flows out as warm air H4 from the second outflow surface 38 of the second heater 36.
  • the downstream tip end sealing member 88 is separated from a wall surface 20c at a downstream end of the downstream warm air passage 53.
  • the warm air H4 flows into the mix space 27 from the downstream warm air passage 53.
  • the downstream end of the mix space side cool air passage 42 is open. Cool air C4 can flow into the mix space 27 from the mix space side cool air passage 42.
  • the upstream intermediate sealing member 77 is in close contact with a proximal end 73a (an end portion on a side close to the rotation shaft 62) of the upstream driven door 73, and reduces or prevents the cool air C4 from flowing into the heater-side cool air passage 43 via a gap between the upstream extension door 71 and the upstream driven door 73.
  • the downstream door 80 At the full-cool position, the downstream door 80 is in a most unfolded state.
  • the downstream door diameter R2 (FIG. 3) is the largest, and the downstream door angle ⁇ 2 (FIG.
  • the downstream intermediate sealing member 87 is in close contact with a proximal end 83a (an end portion on a side close to the rotation shaft 62) of the downstream driven door 83. It is possible to reduce or prevent the warm air from flowing into the mix space 27 from the downstream warm air passage 53 via a gap between the downstream extension door 81 and the downstream driven door 83.
  • the downstream tip end sealing member 88 is in close contact with the wall surface 20c at the downstream end of the downstream warm air passage 53. That is, the downstream end of the downstream warm air passage 53 is closed.
  • FIG. 7A illustrates a vehicular air conditioner 100 according to a comparative example.
  • a case 120 of the vehicular air conditioner 100 accommodates a first heater 131 and a second heater 136 that are capable of heating cool air, and a mix door 110.
  • the mix door 110 includes a rotation shaft 101, an upstream extension door 102 extending from the rotation shaft 101 toward upstream, an upstream second extension door 103 further extending from a tip end of the upstream extension door 102 in a direction different from a direction in which the upstream extension door 102 extends, and a downstream extension door 104 extending in a direction substantially opposite to the direction in which the upstream extension door 102 extends.
  • the downstream extension door 104 is set to close a downstream end of a warm air passage 106. That is, a tip end of the downstream extension door 104 and a wall surface 106a of the warm air passage 106 are required to be in contact with each other.
  • the vehicular air conditioner 100 includes two heaters 131 and 136. As compared with a case in which a single heater is provided, a region in which the mix door 110 can swing is reduced. That is, since a swing region of the downstream extension door 104 is limited, it is necessary to bend the wall surface 106a of the warm air passage 106 in a manner of being close to the downstream extension door 104. When the wall surface 106a of the warm air passage 106 is bent, airflow resistance of warm air H10 flowing through the warm air passage 106 increases.
  • FIG. 7B schematically illustrates the mix door 60.
  • the downstream door diameter R2 at the full-cool position is larger than the downstream door diameter R2 at the full- hot position.
  • the downstream door diameter R2 is larger. Therefore, it is unnecessary to bend the wall surface of the downstream warm air passage 53 in a manner of being close to the downstream door 80. As compared with the warm air passage 106 in FIG. 7A, the downstream warm air passage 53 is linear, and an increase in airflow resistance of the air flowing through the downstream warm air passage 53 can be prevented. [0078]
  • the downstream door diameter R2 is smaller when the mix door 60 is at the full-hot position than that when the mix door 60 is at the full-cool position. Therefore, the downstream driven door 83 is prevented from extending to the downstream warm air passage 53, and the increase in the airflow resistance of the air flowing through the downstream warm air passage 53 can be prevented.
  • the downstream driven door 83 is bent toward downstream (in the direction close to the mix space 27) in the downstream warm air passage 53. As compared with a door that is bent toward upstream against a flow of warm air, the increase in the airflow resistance can be prevented. [0080] As shown in FIGS. 4A to 4C, regardless of the position of the mix door 60, the downstream driven door 83 is preferably bent toward downstream (in the direction close to the mix space 27) in the downstream warm air passage 53. That is, regardless of the position of the mix door 60, the downstream driven door 83 is less likely to resist the warm air flowing through the downstream warm air passage 53.
  • the downstream door angle ⁇ 2 decreases. That is, the downstream door 80 is in the most bent state at the full-hot position. In other words, the downstream door 80 having a large door diameter is folded and reduced in size, and the downstream door 80 is less likely to hinder the warm air flowing through the downstream warm air passage 53. It is possible to prevent the increase in the airflow resistance at a full-hot position or a position close to the full-hot position where the downstream warm air passage 53 has a large air volume. [0082] [Prevention of Increase in Size of Vehicular Air Conditioner] Reference is made to FIG. 7A.
  • a region through which the upstream second extension door 103 passes is defined as an upstream passing comparison region A1.
  • the upstream door diameter R1 at the full-hot position is smaller than the upstream door diameter R1 at the full-cool position.
  • the upstream driven door 73 is bent toward upstream (the direction close to the first heater 31) of the upstream extension door 71 in the mix space side cool air passage 42.
  • a region through which the upstream driven door 73 passes is defined as an upstream passing region S1.
  • the wall surface of the mix space side cool air passage 42 can be brought close to the mix door 60 (a wall surface of the cool air passage 40 is brought close to the rotation shaft 62 of the mix door 60), the vicinity of the mix space side cool air passage 42 in the case 20 can be reduced in size, and an increase in size of the vehicular air conditioner 10 can be prevented.
  • [Improvement in Heating Performance] Reference is made to FIG. 5. At the full-hot position, the downstream intermediate sealing member 87 is in close contact with the sealing surface 29c provided on the heater support portion 29.
  • the downstream extension door 81 prevents a part of the cool air C3 from bypassing the first heater 31 and the second heater 36 and flowing into the downstream warm air passage 53 without being heated by the first heater 31 and the second heater 36. A heating performance at the full-hot position can be improved.
  • the upstream intermediate sealing member 77 integrally includes a full- hot side sealing portion 77a that can come into contact with the case 20 at the full-hot position, and a full-cool side sealing portion 77b that can come into contact with the proximal end 73a of the upstream driven door 73 at the full-cool position.
  • the full-hot side sealing portion 77a and the full-cool side sealing portion 77b may be provided separately, the number of components can be reduced by integrating the full-hot side sealing portion 77a and the full-cool side sealing portion 77b.
  • the downstream intermediate sealing member 87 integrally includes a full-cool side sealing portion 87a that can come into contact with the proximal end 83a of the downstream driven door 83 at the full-cool position, and a full-hot side sealing portion 87b that can come into contact with the sealing surface 29c of the heater support portion 29 at the full-hot position.
  • the full-cool side sealing portion 87a and the full-hot side sealing portion 87b may be provided separately, the number of components can be reduced by integrating the full-cool side sealing portion 87a and the full-hot side sealing portion 87b.
  • the vehicular air conditioner 10 has been described as being provided with the block portion 29b in the heater support portion 29, the invention is not limited thereto, and the block portion 29b may not be provided.
  • the invention is not limited to the embodiment as long as functions and effects according to the invention are exhibited.
  • Industrial Applicability [0091]
  • the vehicular air conditioner according to the invention is suitable for being mounted on a passenger vehicle.
  • Reference Signs List [0092] 10: vehicular air conditioner 13: cooling heat exchanger 20: case 27: mix space 31: first heater 36: second heater 40: cool air passage 50: warm air passage 60: mix door 61: butterfly door portion 71: upstream extension door 72: upstream hinge 73: upstream driven door 81: downstream extension door 82: downstream hinge 83: downstream driven door R1: upstream door diameter
  • R2 downstream door diameter ⁇ 1: upstream door angle ⁇ 2: downstream door angle

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

Abstract

L'invention concerne un climatiseur de véhicule comprenant une pluralité d'éléments chauffants (31, 36) et une porte de mélange de type papillon (60) comprenant une porte d'extension aval (81) et une porte entraînée aval (83) reliée à la porte d'extension aval (81) par l'intermédiaire d'une charnière aval (82), un diamètre de porte aval (R2) étant plus grand lorsque la porte de mélange de type papillon (60) est à une position froide pleine que lorsque la porte de mélange de type papillon (60) est à une position chaude pleine et la porte entraînée aval (83) est courbée vers l'amont de la porte d'extension aval (81) dans un passage d'air chaud (50) lorsque la porte de mélange de type papillon (60) est à la position chaude pleine.
PCT/EP2023/059728 2022-04-14 2023-04-13 Climatiseur de véhicule WO2023198859A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202380014050.2A CN118103232A (zh) 2022-04-14 2023-04-13 车辆空调

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022067208 2022-04-14
JP2022-067208 2022-04-14

Publications (1)

Publication Number Publication Date
WO2023198859A1 true WO2023198859A1 (fr) 2023-10-19

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PCT/EP2023/059728 WO2023198859A1 (fr) 2022-04-14 2023-04-13 Climatiseur de véhicule

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2149464A1 (fr) * 2008-07-28 2010-02-03 DENSO THERMAL SYSTEMS S.p.A. Ensemble de climatisation d'air pour véhicules
EP3683075A1 (fr) * 2019-01-15 2020-07-22 Valeo Systemes Thermiques Dispositif de chauffage, ventilation et/ou climatisation
EP3708393A1 (fr) * 2017-11-06 2020-09-16 Valeo Japan Co., Ltd. Dispositif de climatisation pour véhicules

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2149464A1 (fr) * 2008-07-28 2010-02-03 DENSO THERMAL SYSTEMS S.p.A. Ensemble de climatisation d'air pour véhicules
EP3708393A1 (fr) * 2017-11-06 2020-09-16 Valeo Japan Co., Ltd. Dispositif de climatisation pour véhicules
EP3683075A1 (fr) * 2019-01-15 2020-07-22 Valeo Systemes Thermiques Dispositif de chauffage, ventilation et/ou climatisation

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