WO2014156061A1 - Vehicular air conditioner - Google Patents

Vehicular air conditioner Download PDF

Info

Publication number
WO2014156061A1
WO2014156061A1 PCT/JP2014/001560 JP2014001560W WO2014156061A1 WO 2014156061 A1 WO2014156061 A1 WO 2014156061A1 JP 2014001560 W JP2014001560 W JP 2014001560W WO 2014156061 A1 WO2014156061 A1 WO 2014156061A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotary door
air
cold air
passage
guide
Prior art date
Application number
PCT/JP2014/001560
Other languages
French (fr)
Japanese (ja)
Inventor
辰朗 久戸
明 白石
大介 榊原
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to DE112014001663.2T priority Critical patent/DE112014001663T5/en
Priority to BR112015024459-9A priority patent/BR112015024459B1/en
Priority to CN201480018367.4A priority patent/CN105189158B/en
Publication of WO2014156061A1 publication Critical patent/WO2014156061A1/en

Links

Images

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
    • B60H1/00671—Damper doors moved by rotation; Grilles
    • B60H1/00685—Damper doors moved by rotation; Grilles the door being a rotating disc or cylinder or part thereof
    • 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
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H1/00035—Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment
    • B60H1/0005—Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment the air being firstly cooled and subsequently heated or vice versa

Definitions

  • the present disclosure relates to a vehicle air conditioner including a rotary door having functions of a mode door and an air mix door.
  • Patent Document 1 discloses a vehicle air conditioner having a configuration in which a mode door for switching a blowing mode and an air mix door are separated.
  • the vehicle air conditioner described in Patent Document 1 is provided with a guide portion inside the mode door.
  • the guide portion In the bi-level (BL) mode, the guide portion is at a position where the cold air and the warm air are separated to widen the vertical temperature difference in the vehicle interior.
  • the guide portion is intended to reduce the temperature difference between the upper and lower sides in the foot differential (F / D) mode.
  • the vehicle air conditioner described in Patent Document 1 described above has a configuration in which the mode door and the air mix door are separated from each other.
  • the configuration is made by simply removing the air mix door from the vehicle air conditioner described in Patent Document 1 for miniaturization, the cool air and the warm air are not mixed at all until the mode door. Therefore, there is a possibility that the vertical temperature difference is excessive in the BL mode at the guide portion in the mode door.
  • Even in the F / D mode since there is a leakage path for warm air to the FOOT, there is a possibility that the reduction in the temperature difference between the upper and lower sides is insufficient.
  • an object of the present disclosure is to provide a vehicle air conditioner including a rotary door that is excellent in mixing cold air and warm air and functions as a mode door.
  • the vehicle air conditioner blows air for air conditioning toward the vehicle interior from a plurality of air outlets opening in the vehicle interior.
  • the vehicle air conditioner includes an air conditioning case, a rotary door, a plurality of blowing passages, a cold air inflow portion, a hot air inflow portion, a cold air guide, and a hot air guide.
  • the air conditioning case forms an air passage inside.
  • the rotary door is an arc-shaped member that is rotatably supported in the air conditioning case, and includes an arc-shaped wall portion and a plurality of openings provided in the arc-shaped wall portion.
  • the plurality of outlet passages are arranged outside the rotary door in the circumferential direction of the rotary door, and are opened and closed by the displacement of the opening due to the rotation of the rotary door.
  • the plurality of outlet passages are respectively connected to the plurality of outlets.
  • the cold air inflow portion is disposed outside the rotary door, and communicates with the inside of the rotary door by the displacement of the opening due to the rotation of the rotary door to be in an open state. In the open state of the cold air inflow portion, the cold air flows toward the inside of the rotary door.
  • the hot air inflow portion is disposed outside the rotary door, and communicates with the inside of the rotary door by the displacement of the opening due to the rotation of the rotary door and is in an open state.
  • the cold air guide is provided inside the rotary door, and guides the cold air from the cold air inflow portion to the center of the rotary door.
  • the hot air guide is provided inside the rotary door and guides the hot air from the hot air inflow portion to the center of the rotary door.
  • a cold air guide and a hot air guide are provided inside the rotary door.
  • Each guide guides cold air and hot air to the center of the rotary door, respectively. Therefore, the air that has flowed into the rotary door from the cold air inflow portion and the hot air inflow portion can collide with the center of the rotary door. As a result, cold air and hot air are mixed in the center of the rotary door.
  • the rotary door rotates, the relative position between the position of the opening of the rotary door and the plurality of outlet passages changes, and the plurality of outlet passages are opened and closed. Therefore, the rotary door functions as a so-called mode door.
  • the air passing through the rotary door and flowing into each blowout passage can be mixed air. This makes it possible to realize a rotary door that is excellent in mixing cold air and warm air and functions as a mode door.
  • FIG. 1 is a cross-sectional view showing a part of a vehicle air conditioner according to a first embodiment.
  • FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the face mode of the first embodiment.
  • FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the bilevel mode of the first embodiment.
  • FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the foot mode of the first embodiment.
  • FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the foot differential mode of the first embodiment.
  • FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the defroster mode of the first embodiment.
  • FIG. 6 is a diagram illustrating an example of a relationship between a guide length and a vertical temperature difference in the first embodiment.
  • FIG. 5 is a diagram illustrating an example of a relationship between a guide length and a pressure loss (pressure loss) in the first embodiment. It is sectional drawing of the vehicle air conditioner of 2nd Embodiment of this indication. It is a schematic cross section which shows the position of the rotary door in the defroster mode of 2nd Embodiment.
  • FIGS. 1 A first embodiment of the present disclosure will be described with reference to FIGS. 1 indicate the direction in the vehicle mounted state.
  • the vehicle left-right (width) direction is a direction perpendicular to the paper surface of FIG.
  • the vehicle air conditioner 10 is mounted at a substantially central portion in the left-right direction of the vehicle inside an instrument panel located at the front part of the vehicle interior.
  • a blower (not shown) is disposed on the vehicle front side of the vehicle air conditioner 10.
  • the blower has a blower fan constituted by a centrifugal multiblade fan (sirocco fan), and is configured to rotate this blower fan by an electric motor (not shown).
  • An inside / outside air switching box (not shown) is connected to the suction side of the blower fan. The blower fan sucks outside air or inside air introduced through the inside / outside air switching box and blows air toward the frontmost space in the air conditioning case 11.
  • the air conditioning case 11 forms an air passage 12 through which air blown from the blower fan flows.
  • an evaporator 13 is disposed as a cooling heat exchanger. The evaporator 13 is in a position where the entire amount of air blown from the blower fan passes from the vehicle front side to the rear side.
  • the evaporator 13 has a well-known structure in which a plurality of flat tubes (not shown) forming a refrigerant passage and corrugated heat transfer fins (not shown) that increase the air-side heat transfer area are alternately stacked.
  • the heat exchange core unit 14 is configured.
  • the low-pressure refrigerant decompressed by the decompression device (not shown) of the refrigeration cycle absorbs heat from the air passing through the evaporator 13 through the tube of the heat exchange core section 14 of the evaporator 13 and evaporates, thereby cooling the passing air.
  • a hot water heater core 15 serving as a heat exchanger for heating is disposed on the leeward side (vehicle rear side) of the evaporator 13.
  • the heater core 15 heats air using hot water from a vehicle engine (not shown) as a heat source.
  • the heater core 15 is formed by laminating a number of flat tubes (not shown) that form a hot water passage and corrugated heat transfer fins (not shown) that increase the air-side heat transfer area in the vehicle left-right direction. It has the well-known heat exchange core part 16 joined.
  • a cold air passage 17 is provided between the upper end portion of the heater core 15 and the upper surface portion of the air conditioning case 11 to bypass the heater core 15 and through which cold air flows. It is formed. A downstream portion of the cold air passage 17 serves as a cold air inflow portion 18 through which the cold air flows into the mixing space 19.
  • a warm air passage 20 is formed on the downstream side of the air flow of the heater core 15 from immediately after the heater core 15 toward the upper side.
  • a downstream portion of the warm air passage 20 serves as a warm air inflow portion 21 through which the warm air flows into the mixing space 19. Therefore, the cold air from the cold air passage 17 and the hot air from the hot air passage 20 are merged in the downstream side of the cold air passage 17 and the hot air passage 20 from the intersecting direction to mix the cold air and the hot air.
  • a mixing space 19 is formed.
  • a defroster outlet passage 31 is opened at a front portion of the vehicle.
  • This defroster outlet passage 31 is where the temperature-controlled air flows from the mixing space 19 and is connected to a defroster outlet through a defroster duct (not shown), from this outlet toward the inner surface of the vehicle front window glass. The wind is blown out.
  • a face blowing passage 32 is opened at a position on the vehicle rear side with respect to the defroster blowing passage 31.
  • the face blowout passage 32 also receives the temperature-controlled air from the mixing space 19.
  • the face outlet passage 32 is connected to a face outlet through a face duct (not shown), and blows wind from the outlet toward an occupant's head and chest in the passenger compartment.
  • a foot outlet passage 33 is opened at a position on the vehicle rear side of the face outlet passage 32.
  • the foot blowing passage 33 also receives the temperature-controlled air from the mixing space 19.
  • the downstream side of the foot outlet passage 33 is connected to a foot outlet through a foot duct (not shown), and air is blown out from the outlet toward the feet of the occupant.
  • a rotary door 41 is disposed in the mixing space 19.
  • the blowout passages 31 to 33 and the inflow portions 18 and 21 are arranged on the outer side in the radial direction of the rotary door 41.
  • the rotary door 41 is supported in the air conditioning case 11 so as to be rotatable (can be angularly displaced).
  • the rotary door 41 is made of, for example, a resin material, and includes a door plate portion 42 that is an arcuate wall portion separated from the rotation shaft (drive shaft) L by a predetermined amount.
  • the door plate portion 42 of the rotary door 41 rotates (angular displacement) about the rotation axis L.
  • the door plate portion 42 has three openings 51 to 53.
  • the three openings 51 to 53 of the door plate portion 42 are portions for opening and closing the outlet passages 31 to 33 and the inflow portions 18 and 21.
  • the displacement of the first opening 51 and the third opening 53 due to the rotation of the rotary door 41 communicates with the three outlet passages 31 to 33, and the passage area is adjusted.
  • the inside of the rotary door 41 and the cold air inflow portion 18 communicate with each other to be in the open state.
  • the cold air inflow portion 18 is in the open state, the cold air flows toward the inside of the rotary door 41 in the radial direction.
  • the inside of the rotary door 41 and the hot air inflow portion 21 communicate with each other to be in an open state.
  • the warm air inflow portion 21 is in the open state, the warm air flows toward the inside of the rotary door 41 in the radial direction.
  • the defroster outlet passage 31, the face outlet passage 32, the foot outlet passage 33, the cold air inflow portion 18, and the hot air inflow portion 21 are opened and closed by the rotary door 41.
  • the rotary door 41 is configured to form a blowing mode in which any one or more of the defroster blowing passage 31, the face blowing passage 32, and the foot blowing passage 33 are opened according to the rotation stop position. Accordingly, the rotary door 41 functions as a so-called blow mode door that switches the blow mode. Further, the rotary door 41 controls the flow rate ratio between the warm air and the cool air by adjusting the open / close ratio of the cool air inflow portion 18 and the warm air inflow portion 21 according to the rotation stop position. Therefore, the rotary door 41 also functions as a so-called air mix door.
  • a cold air guide 61 and a hot air guide 62 are provided inside the rotary door 41 in the radial direction.
  • the cold air guide 61 is a member for guiding the cold air from the cold air inflow portion 18 to the center of the rotary door 41.
  • the warm air guide 62 is a member for guiding the warm air from the warm air inflow portion 21 to the center of the rotary door 41.
  • the cold air guide 61 and the hot air guide 62 are formed integrally with the rotary door 41 and rotate integrally with the rotary door 41.
  • the cold air guide 61 is connected to a wall portion located in the thickness direction (the vehicle left-right direction) of FIG.
  • One end of the warm air guide 62 is connected to the door plate 42.
  • the cold air guide 61 and the hot air guide 62 extend from one end to the center of the rotary door 41 in the radial direction at the other end.
  • the ends of the cold air guide 61 and the hot air guide 62 on the center side of the rotary door 41 are spaced apart.
  • the center of the rotary door 41 is the rotation center of the rotary door 41.
  • the length L1 of the cold air guide 61 and the length L2 of the hot air guide 62 are equal to each other.
  • the distance L3 between the other end of the cold air guide 61 and the other end of the hot air guide 62 is larger than the passage width L4 in the circumferential direction of the face blowing passage 32 and the passage width L5 in the circumferential direction of the foot blowing passage 33.
  • the vehicle air conditioner 10 having the above-described configuration is, for example, an electronic control unit (inputting operation signals from various operation members provided on an air conditioning operation panel (not shown) and sensor signals from various sensors for air conditioning control). (Not shown). The position of each door is controlled by the output signal of this control device.
  • FIGS. 3 to 7 are views showing the position of the rotary door 41 in the five blowing modes.
  • a face (FACE) mode for example, a face (FACE) mode, a bi-level (B / L) mode, a foot (FOOT) mode, a foot defroster ( F / D) mode and defroster (DEF) mode.
  • Table 1 shows the open / closed states of the outlet passages 31 to 33 and the inflow portions 18 and 21 in each mode. In Table 1, the open state is indicated by ⁇ , and the closed state is indicated by ⁇ .
  • the face mode is a mode in which conditioned air (air for air conditioning) is blown mainly toward the passenger's upper body.
  • the face outlet passage 32 is open, the foot outlet passage 33 is closed, the defroster outlet passage 31 is closed, the cold air inlet 18 is open, and the hot air inlet 21 is closed.
  • the rotary door 41 is arranged at a position where the state is reached. As a result, the conditioned air is blown from the mixing space 19 through the face blowing passage 32 into the passenger compartment. Therefore, in the face mode, the rotary door 41 is disposed at the maximum cooling position where the hot air passage 20 passing through the heat exchange core portion 16 of the heater core 15 is fully closed and the cold air passage 17 is fully opened.
  • the cold air guide 61 guides the cold air toward the center of the rotary door 41. As it is, the cool air flows toward the face blowing passage 32 at a position facing the cold air inflow portion 18. Therefore, the cold air flow resistance can be reduced by the cold air guide 61.
  • the bi-level mode is a mode in which conditioned air is blown toward the passenger's upper body and the feet of the passenger.
  • the rotary door 41 is placed at a position where the face blowing passage 32 and the foot blowing passage 33 are open, the defroster blowing passage 31 is closed, and the cold air inflow portion 18 and the hot air inflow portion 21 are open. It is arranged.
  • the conditioned air is blown from the mixing space 19 through the face blowing passage 32 and the foot blowing passage 33 into the vehicle interior. Therefore, in the bi-level mode, the rotary door 41 is arranged at a position where both the hot air passage 20 and the cold air passage 17 are opened.
  • the position of the cold air inflow portion 18 side end portion of the cold air guide 61 is located at the lower end portion of the opening of the cold air inflow portion 18.
  • the cold air guide 61 can guide the cold air flowing in from the cold air inflow portion 18 to the center of the rotary door 41.
  • the foot mode is a mode in which air conditioned air is blown mainly toward the passenger's feet.
  • the rotary door 41 is disposed at a position where the face blowing passage 32 and the defroster blowing passage 31 are closed, the foot blowing passage 33 is opened, and the cold air inflow portion 18 and the hot air inflow portion 21 are in the open state. is doing.
  • the conditioned air is blown from the mixing space 19 through the foot outlet passage 33 into the vehicle interior.
  • the rotary door 41 is disposed at a position where both the hot air passage 20 and the cold air passage 17 are opened, and the opening of the hot air inflow portion 21 is wider than the bilevel mode, and the opening of the cold air inflow portion 18 is opened. Is narrow.
  • the position of the end of the cold air guide 61 on the cold air inflow portion 18 side is located at the upper end of the opening of the cold air inflow portion 18.
  • the cold air guide 61 can guide the cold air flowing in from the cold air inflow portion 18 to the center of the rotary door 41.
  • the position of the end portion of the warm air guide 62 on the warm air inflow portion 21 side is located at the end portion on the upper side of the opening of the warm air inflow portion 21. Accordingly, the hot air guide 62 can guide the hot air flowing in from the hot air inflow portion 21 to the center of the rotary door 41.
  • the foot differential mode is a mode in which conditioned air is blown toward the front window glass and the feet of the passenger.
  • the face outlet passage 32 is closed, the foot outlet passage 33 and the defroster outlet passage 31 are open, and the rotary door 41 is placed at a position where the cold air inlet 18 and the hot air inlet 21 are open. It is arranged.
  • the conditioned air is blown from the mixing space 19 through the defroster outlet passage 31 and the foot outlet passage 33 into the vehicle interior.
  • the rotary door 41 is arranged at a position where both the hot air passage 20 and the cold air passage 17 are opened, and the opening of the hot air inflow portion 21 is wider than the foot mode, and the opening of the cold air inflow portion 18 is opened. Is narrow.
  • the first opening 51 opens the cold air inflow portion 18 and the second opening 52 opens the hot air inflow portion 21.
  • the cool air guide 61 is in a position for guiding the cool air to the center of the rotary door 41
  • the warm air guide 62 is in a position for guiding the warm air to the center of the rotary door 41. Therefore, the cold air and the hot air collide at the center of the rotary door 41 as shown in FIGS. 4 to 6, and the cold air and the hot air can be mixed.
  • the cooling and warm air can be opposed to promote stirring.
  • the defroster mode is a mode in which conditioned air is blown toward the front window glass.
  • the face blowing passage 32 and the foot blowing passage 33 are in the closed state
  • the defroster blowing passage 31 is in the open state
  • the cold air inflow portion 18 is in the closed state
  • the hot air inflow portion 21 is in the open state.
  • a rotary door 41 is arranged.
  • the rotary door 41 is disposed at the maximum heating position where the hot air passage 20 passing through the heat exchange core portion 16 of the heater core 15 is fully opened and the cold air passage 17 is fully closed.
  • the effects of the cold air guide 61 and the hot air guide 62 will be described with reference to FIGS. 8 and 9 indicate the lengths L1 and L2 of each guide.
  • the face passage width L4 is 40 mm
  • the foot passage width L5 is 50 mm.
  • the diameter of the rotary door 41 is 125 mm.
  • the inter-guide length L3 is set larger than the face passage width L4 and the foot passage width L5 (L3> L4, L5). The basis for setting these dimensions will be described.
  • the guide lengths L1 and L2 are preferably in a range indicated by a two-dot chain line in FIGS.
  • the relationship between the guide lengths L1, L2 and the inter-guide length L3 is such that the inter-guide length L3 decreases as the guide lengths L1, L2 increase.
  • the guide lengths L1 and L2 are 37.5 mm. Therefore, the range shown by the two-dot chain line in FIGS. Therefore, as described above, the inter-guide length L3 is set larger than the face passage width L4 and the foot passage width L5 (L3> L4, L5).
  • the cold air guide 61 and the hot air guide 62 are provided inside the rotary door 41.
  • Each guide 61, 62 guides cold air and hot air to the center of the rotary door 41, respectively. Therefore, the air that has flowed into the rotary door 41 from the cold air inflow portion 18 and the hot air inflow portion 21 can collide with the center of the rotary door 41. As a result, cold air and hot air are mixed in the center of the rotary door 41.
  • the rotary door 41 rotates, the rotary door 41 is provided with a plurality of openings 51 to 53, so that the positions of the openings 51 to 53 and the relative positions of the plurality of outlet passages 31 to 33 change.
  • a plurality of outlet passages 31 to 33 are opened and closed. Therefore, the rotary door 41 functions as a so-called mode door. As described above, since the cold air and the warm air are mixed inside the rotary door 41, the air that passes through the rotary door 41 and flows into the blowout passages 31 to 33 can be mixed air. As a result, it is possible to realize a rotary door 41 that is excellent in mixing cold air and warm air and functions as a mode door.
  • the cold air guide 61 and the hot air guide 62 rotate integrally with the rotary door 41.
  • the number of man-hours and the number of assembling steps can be reduced as compared with the configuration of separate bodies.
  • the first opening 51 opens the cold air inflow portion 18, and the second opening 52 opens the hot air inflow portion 21.
  • the cold air guide 61 is in a position for guiding the cold air to the center of the rotary door 41
  • the hot air guide 62 is in a position for guiding the hot air to the center of the rotary door 41. Therefore, in the foot mode, the foot differential mode, and the bi-level mode, the cold air and the hot air can collide with each other at the center of the rotary door 41.
  • the temperature difference between the upper and lower sides in the passenger compartment can be reduced and brought close to the set temperature.
  • the present embodiment is characterized by the shape of the cold air guide 61A of the vehicle air conditioner 10A. As shown in FIG. 10, the cold air guide 61 ⁇ / b> A of the present embodiment has a bent portion 71 where the end portion on the center side of the rotary door 41 is bent.
  • the bent portion 71 is a tip portion that is bent and extended. As shown in FIG. 11, the bent portion 71 is in a position for guiding the warm air guided by the warm air guide 62 to the defroster outlet passage 31 in the defroster mode.
  • the bent portion 71 can prevent the warm air from being guided downward by the cold air guide 61A. As a result, pressure loss can be reduced in the differential mode.
  • the rotary door 41 is provided with the three openings 51 to 53, but is not limited to three, and may be at least two or more openings. That is, one opening may be an opening for opening and closing the outlet passage, and the other opening may be an opening for opening and closing the inflow portion.
  • L1> L2 is satisfied while maintaining the relationship of L3> L4 and L3> L5
  • the same operation and effect as in the first embodiment described above are achieved with respect to the temperature difference between the upper and lower sides of the vehicle interior (cooling / heating air agitation). .
  • the pressure loss in the face mode increases, but the pressure loss in the foot mode can be reduced.
  • the cold air guide 61 and the hot air guide 62 are configured integrally with the rotary door 41, but are not limited to an integrated type.
  • the guides 61 and 62 and the rotary door 41 may be independent from each other. In this case, since the arrangement of the guides 61 and 62 does not rotate with the rotation of the mode door, the amount of reduction in the vertical temperature difference can be made constant regardless of the position of the rotary door 41.
  • the virtual straight line extending in the extending direction of the cold air guide 61 may intersect with the virtual straight line extending in the extending direction of the hot air guide 62.

Landscapes

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

Abstract

A vehicular air conditioner is provided with a cold air guide (61) and a warm air guide (62) provided to the inner side of a rotary door (41). These guides (61, 62) guide cold air and warm air, respectively, to the middle of the rotary door (41). Therefore, air flowing in from a cold air inlet (18) and a warm air inlet (21) to the inner side of the rotary door (41) can be made to collide in the middle of the rotary door (41). Cold air and warm air thereby mix together in the middle of the rotary door (41). When the rotary door (41) rotates, the positions of a plurality of blow-out passages (31-33) change relative to the positions of open parts (51-53) in the rotary door (41), and the plurality of blow-out passages (31-33) are opened and closed. Therefore, the rotary door (41) functions as a so-called mode door. It is thereby possible to provide a vehicular air conditioner that is excellent in mixing cold air and warm air and that is provided with a rotary door functioning as a mode door.

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
　本出願は、当該開示内容が参照によって本出願に組み込まれた、２０１３年３月２７日に出願された日本特許出願２０１３－０６７０３８を基にしている。 This application is based on Japanese Patent Application No. 2013-067038 filed on Mar. 27, 2013, the disclosure of which is incorporated herein by reference.
　本開示は、モードドアおよびエアミックスドアの機能を有するロータリドアを備える車両用空調装置に関する。 The present disclosure relates to a vehicle air conditioner including a rotary door having functions of a mode door and an air mix door.
　特許文献１では、吹き出しモードを切り替えるモードドアとエアミックスドアとが分離した構成の車両用空調装置を開示している。特許文献１に記載の車両用空調装置は、モードドアの内部にガイド部が設けられる。ガイド部は、バイレベル（ＢＬ）モードでは冷風と暖風とを分離して車室内の上下温度差を広げる位置にある。またガイド部は、フットデフ（Ｆ／Ｄ）モードでは上下温度差を縮小することを目的としている。 Patent Document 1 discloses a vehicle air conditioner having a configuration in which a mode door for switching a blowing mode and an air mix door are separated. The vehicle air conditioner described in Patent Document 1 is provided with a guide portion inside the mode door. In the bi-level (BL) mode, the guide portion is at a position where the cold air and the warm air are separated to widen the vertical temperature difference in the vehicle interior. In addition, the guide portion is intended to reduce the temperature difference between the upper and lower sides in the foot differential (F / D) mode.
特開平８－２６８０３８号公報JP-A-8-268038
　本願発明者の検討によると、前述の特許文献１に記載の車両用空調装置ではモードドアとエアミックスドアと分離した構成であるので、大型になるおそれがある。たとえば小形化のため、特許文献１に記載の車両用空調装置から単にエアミックスドアを除いた構成にすると、モードドアまでに冷風と暖風とが全く混ざらない。したがってモードドア内のガイド部ではＢＬモードで上下温度差がつき過ぎるおそれがある。またＦ／Ｄモードでも暖風のＦＯＯＴへの漏らし経路があるため、上下温度差の縮小が不十分になるおそれがある。 According to the inventor's study, the vehicle air conditioner described in Patent Document 1 described above has a configuration in which the mode door and the air mix door are separated from each other. For example, if the configuration is made by simply removing the air mix door from the vehicle air conditioner described in Patent Document 1 for miniaturization, the cool air and the warm air are not mixed at all until the mode door. Therefore, there is a possibility that the vertical temperature difference is excessive in the BL mode at the guide portion in the mode door. Even in the F / D mode, since there is a leakage path for warm air to the FOOT, there is a possibility that the reduction in the temperature difference between the upper and lower sides is insufficient.
　そこで、本開示は前述の点を鑑みてなされたものであり、冷風と暖風との混合に優れ、モードドアとして機能するロータリドアを備える車両用空調装置を提供することを目的とする。 Therefore, the present disclosure has been made in view of the foregoing points, and an object of the present disclosure is to provide a vehicle air conditioner including a rotary door that is excellent in mixing cold air and warm air and functions as a mode door.
　本開示の一態様によると、車両用空調装置は、車室内に開口する複数の吹出口から車室内に向けて空調用空気を吹き出す。車両用空調装置は、空調ケース、ロータリドア、複数の吹出通路、冷風流入部、温風流入部、冷風ガイドおよび温風ガイドを備える。空調ケースは、内部に空気通路を形成する。ロータリドアは、空調ケース内に回転可能に支持される円弧状の部材であって、円弧状の壁部と、円弧状の壁部に設けられた複数の開口部とを有する。複数の吹出通路は、ロータリドアの外側にロータリドアの周方向に並んで配置され、ロータリドアの回転による開口部の変位によって開閉する。複数の吹出通路は、複数の吹出口にそれぞれ接続される。冷風流入部は、ロータリドアの外側に配置され、ロータリドアの回転による開口部の変位によってロータリドアの内側と連通して開状態となる。冷風流入部の開状態では冷風がロータリドアの内側に向けて流れる。温風流入部は、ロータリドアの外側に配置され、ロータリドアの回転による開口部の変位によってロータリドアの内側と連通して開状態となる。温風流入部の開状態では温風がロータリドアの内側に向けて流れる。冷風ガイドは、ロータリドアの内側に設けられ、冷風流入部からの冷風をロータリドアの中央に案内する。温風ガイドは、ロータリドアの内側に設けられ、温風流入部からの温風をロータリドアの中央に案内する。 According to one aspect of the present disclosure, the vehicle air conditioner blows air for air conditioning toward the vehicle interior from a plurality of air outlets opening in the vehicle interior. The vehicle air conditioner includes an air conditioning case, a rotary door, a plurality of blowing passages, a cold air inflow portion, a hot air inflow portion, a cold air guide, and a hot air guide. The air conditioning case forms an air passage inside. The rotary door is an arc-shaped member that is rotatably supported in the air conditioning case, and includes an arc-shaped wall portion and a plurality of openings provided in the arc-shaped wall portion. The plurality of outlet passages are arranged outside the rotary door in the circumferential direction of the rotary door, and are opened and closed by the displacement of the opening due to the rotation of the rotary door. The plurality of outlet passages are respectively connected to the plurality of outlets. The cold air inflow portion is disposed outside the rotary door, and communicates with the inside of the rotary door by the displacement of the opening due to the rotation of the rotary door to be in an open state. In the open state of the cold air inflow portion, the cold air flows toward the inside of the rotary door. The hot air inflow portion is disposed outside the rotary door, and communicates with the inside of the rotary door by the displacement of the opening due to the rotation of the rotary door and is in an open state. In the open state of the warm air inflow portion, warm air flows toward the inside of the rotary door. The cold air guide is provided inside the rotary door, and guides the cold air from the cold air inflow portion to the center of the rotary door. The hot air guide is provided inside the rotary door and guides the hot air from the hot air inflow portion to the center of the rotary door.
　これによれば、ロータリドアの内側に冷風ガイドおよび温風ガイドが設けられる。各ガイドは、それぞれロータリドアの中央に冷風および温風をそれぞれ案内する。したがって冷風流入部および温風流入部からロータリドアの内側に流入した空気を、ロータリドアの中央で衝突させることができる。これによってロータリドアの中央にて、冷風と温風が混合される。ロータリドアが回転すると、ロータリドアの開口部の位置と複数の吹出通路との相対位置が変化し、複数の吹出通路を開閉する。したがってロータリドアは、いわゆるモードドアとして機能する。前述のようにロータリドアの内側にて冷風と温風とが混合されるので、ロータリドアを通過して各吹出通路に流れる空気は混合した空気とすることができる。これによって冷風と暖風との混合に優れ、モードドアとして機能するロータリドアを実現することができる。 According to this, a cold air guide and a hot air guide are provided inside the rotary door. Each guide guides cold air and hot air to the center of the rotary door, respectively. Therefore, the air that has flowed into the rotary door from the cold air inflow portion and the hot air inflow portion can collide with the center of the rotary door. As a result, cold air and hot air are mixed in the center of the rotary door. When the rotary door rotates, the relative position between the position of the opening of the rotary door and the plurality of outlet passages changes, and the plurality of outlet passages are opened and closed. Therefore, the rotary door functions as a so-called mode door. As described above, since the cold air and the hot air are mixed inside the rotary door, the air passing through the rotary door and flowing into each blowout passage can be mixed air. This makes it possible to realize a rotary door that is excellent in mixing cold air and warm air and functions as a mode door.
本開示の第１実施形態の車両用空調装置の断面図である。It is sectional drawing of the vehicle air conditioner of 1st Embodiment of this indication. 第1実施形態の車両用空調装置の一部を示す断面図である。1 is a cross-sectional view showing a part of a vehicle air conditioner according to a first embodiment. 第1実施形態のフェイスモードにおけるロータリドアの位置を示す模式断面図である。FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the face mode of the first embodiment. 第1実施形態のバイレベルモードにおけるロータリドアの位置を示す模式断面図である。FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the bilevel mode of the first embodiment. 第1実施形態のフットモードにおけるロータリドアの位置を示す模式断面図である。FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the foot mode of the first embodiment. 第1実施形態のフットデフモードにおけるロータリドアの位置を示す模式断面図である。FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the foot differential mode of the first embodiment. 第1実施形態のデフロスタモードにおけるロータリドアの位置を示す模式断面図である。FIG. 5 is a schematic cross-sectional view showing the position of the rotary door in the defroster mode of the first embodiment. 第1実施形態における、ガイド長さと上下温度差との関係の一例を示す図である。FIG. 6 is a diagram illustrating an example of a relationship between a guide length and a vertical temperature difference in the first embodiment. 第1実施形態における、ガイド長さと圧力損失（圧損）との関係の一例を示す図である。FIG. 5 is a diagram illustrating an example of a relationship between a guide length and a pressure loss (pressure loss) in the first embodiment. 本開示の第２実施形態の車両用空調装置の断面図である。It is sectional drawing of the vehicle air conditioner of 2nd Embodiment of this indication. 第２実施形態のデフロスタモードにおけるロータリドアの位置を示す模式断面図である。It is a schematic cross section which shows the position of the rotary door in the defroster mode of 2nd Embodiment.
　以下、図面を参照しながら本開示を実施するための形態を、複数の形態について説明する。各実施形態で先行する実施形態で説明している事項に対応している部分には同一の参照符を付すか、または先行の参照符号に一文字追加し、重複する説明を略する場合がある。また各実施形態にて構成の一部を説明している場合、構成の他の部分は、先行して説明している実施形態と同様とする。各実施形態で具体的に説明している部分の組合せばかりではなく、特に組合せに支障が生じなければ、実施形態同士を部分的に組合せることも可能である。
（第１実施形態）
　本開示の第１実施形態に関して、図１～図９を用いて説明する。図１の前後上下の各矢印は車両搭載状態での方向を示す。車両左右（幅）方向は図１の紙面垂直方向である。 Hereinafter, a plurality of modes for carrying out the present disclosure will be described with reference to the drawings. In some embodiments, portions corresponding to the matters described in the preceding embodiments may be given the same reference numerals, or one letter may be added to the preceding reference numerals, and overlapping descriptions may be omitted. In addition, when a part of the configuration is described in each embodiment, the other parts of the configuration are the same as those of the embodiment described in advance. In addition to the combination of parts specifically described in each embodiment, the embodiments may be partially combined as long as the combination does not hinder the combination.
(First embodiment)
A first embodiment of the present disclosure will be described with reference to FIGS. 1 indicate the direction in the vehicle mounted state. The vehicle left-right (width) direction is a direction perpendicular to the paper surface of FIG.
　車両用空調装置１０は、車室内前部に位置する計器盤（インパネ）の内側において車両左右方向の略中央部に搭載される。車両用空調装置１０のうち、車両前方側に送風機（図示せず）が配置されている。送風機は遠心式多翼ファン（シロッコファン）により構成される送風ファンを有し、この送風ファンを電動モータ（図示せず）により回転駆動する構成になっている。送風ファンの吸入側には、内外気切替箱（図示せず）が接続される。送風ファンは、内外気切替箱を通して導入される外気または内気を吸入して、空調ケース１１内の最前部の空間へ向かって送風する。 The vehicle air conditioner 10 is mounted at a substantially central portion in the left-right direction of the vehicle inside an instrument panel located at the front part of the vehicle interior. A blower (not shown) is disposed on the vehicle front side of the vehicle air conditioner 10. The blower has a blower fan constituted by a centrifugal multiblade fan (sirocco fan), and is configured to rotate this blower fan by an electric motor (not shown). An inside / outside air switching box (not shown) is connected to the suction side of the blower fan. The blower fan sucks outside air or inside air introduced through the inside / outside air switching box and blows air toward the frontmost space in the air conditioning case 11.
　空調ケース１１は、送風ファンの送風空気が流れる空気通路１２を内部に形成する。空調ケース１１の内部には冷房用熱交換器をなす蒸発器１３が配置されている。蒸発器１３は、送風ファンの送風空気の全量が車両前方側から後方側へと通過する位置にある。 The air conditioning case 11 forms an air passage 12 through which air blown from the blower fan flows. Inside the air conditioning case 11, an evaporator 13 is disposed as a cooling heat exchanger. The evaporator 13 is in a position where the entire amount of air blown from the blower fan passes from the vehicle front side to the rear side.
　蒸発器１３は、冷媒通路をなす偏平状のチューブ（図示せず）と空気側伝熱面積を増大するコルゲート状の伝熱フィン（図示せず）とを交互に多数積層して接合した周知の熱交換コア部１４の構成を有している。冷凍サイクルの減圧装置（図示せず）にて減圧された低圧冷媒が蒸発器１３の熱交換コア部１４のチューブにて蒸発器１３の通過空気から吸熱して蒸発することにより通過空気が冷却される。 The evaporator 13 has a well-known structure in which a plurality of flat tubes (not shown) forming a refrigerant passage and corrugated heat transfer fins (not shown) that increase the air-side heat transfer area are alternately stacked. The heat exchange core unit 14 is configured. The low-pressure refrigerant decompressed by the decompression device (not shown) of the refrigeration cycle absorbs heat from the air passing through the evaporator 13 through the tube of the heat exchange core section 14 of the evaporator 13 and evaporates, thereby cooling the passing air. The
　空調ケース１１内において、蒸発器１３の風下側（車両後方側）に暖房用熱交換器をなす温水式ヒータコア１５が配置されている。ヒータコア１５は、車両エンジン（図示せず）からの温水を熱源として空気を加熱する。ヒータコア１５は、温水通路をなす偏平状のチューブ（図示せず）と、空気側伝熱面積を増大するコルゲート状の伝熱フィン（図示せず）とを車両左右方向に交互に多数積層して接合した周知の熱交換コア部１６を有している。 In the air conditioning case 11, a hot water heater core 15 serving as a heat exchanger for heating is disposed on the leeward side (vehicle rear side) of the evaporator 13. The heater core 15 heats air using hot water from a vehicle engine (not shown) as a heat source. The heater core 15 is formed by laminating a number of flat tubes (not shown) that form a hot water passage and corrugated heat transfer fins (not shown) that increase the air-side heat transfer area in the vehicle left-right direction. It has the well-known heat exchange core part 16 joined.
　またヒータコア１５は蒸発器１３よりも高さ寸法が大幅に小さくしてあるので、ヒータコア１５の上端部と空調ケース１１の上面部との間にヒータコア１５をバイパスして冷風が流れる冷風通路１７が形成される。冷風通路１７の下流側の部位は、混合空間１９に冷風が流入する冷風流入部１８となる。 Further, since the heater core 15 is significantly smaller in height than the evaporator 13, a cold air passage 17 is provided between the upper end portion of the heater core 15 and the upper surface portion of the air conditioning case 11 to bypass the heater core 15 and through which cold air flows. It is formed. A downstream portion of the cold air passage 17 serves as a cold air inflow portion 18 through which the cold air flows into the mixing space 19.
　一方、空調ケース１１内において、ヒータコア１５の空気流れ下流側には、ヒータコア１５の直後から上方に向かう温風通路２０が形成されている。温風通路２０の下流側の部位は、混合空間１９に温風が流入する温風流入部２１となる。したがって冷風通路１７および温風通路２０の下流側の部位には、冷風通路１７からの冷風と温風通路２０からの温風とを交差する方向から合流させて、冷風と温風とを混合させる混合空間１９が形成されている。 On the other hand, in the air conditioning case 11, a warm air passage 20 is formed on the downstream side of the air flow of the heater core 15 from immediately after the heater core 15 toward the upper side. A downstream portion of the warm air passage 20 serves as a warm air inflow portion 21 through which the warm air flows into the mixing space 19. Therefore, the cold air from the cold air passage 17 and the hot air from the hot air passage 20 are merged in the downstream side of the cold air passage 17 and the hot air passage 20 from the intersecting direction to mix the cold air and the hot air. A mixing space 19 is formed.
　空調ケース１１の上面部において、車両前方側の部位にはデフロスタ吹出通路３１が開口している。このデフロスタ吹出通路３１は混合空間１９から温度制御された空気が流入するものであって、図示しないデフロスタダクトを介してデフロスタ吹出口に接続され、この吹出口から車両前面窓ガラスの内面に向けて風を吹き出すようになっている。 In the upper surface of the air conditioning case 11, a defroster outlet passage 31 is opened at a front portion of the vehicle. This defroster outlet passage 31 is where the temperature-controlled air flows from the mixing space 19 and is connected to a defroster outlet through a defroster duct (not shown), from this outlet toward the inner surface of the vehicle front window glass. The wind is blown out.
　空調ケース１１の上面部において、デフロスタ吹出通路３１よりも車両後方側の部位にはフェイス吹出通路３２が開口している。このフェイス吹出通路３２も混合空間１９から温度制御された空気が流入するものである。フェイス吹出通路３２は、図示しないフェイスダクトを介してフェイス吹出口に接続され、この吹出口から車室内の乗員頭胸部に向けて風を吹き出すようになっている。 On the upper surface of the air conditioning case 11, a face blowing passage 32 is opened at a position on the vehicle rear side with respect to the defroster blowing passage 31. The face blowout passage 32 also receives the temperature-controlled air from the mixing space 19. The face outlet passage 32 is connected to a face outlet through a face duct (not shown), and blows wind from the outlet toward an occupant's head and chest in the passenger compartment.
　空調ケース１１の上面部において、フェイス吹出通路３２よりも車両後方側の部位にはフット吹出通路３３が開口している。このフット吹出通路３３も混合空間１９から温度制御された空気が流入するものである。フット吹出通路３３の下流側は、図示しないフットダクトを介してフット吹出口に接続され、この吹出口から乗員の足元に向けて風を吹き出すようになっている。 In the upper surface portion of the air conditioning case 11, a foot outlet passage 33 is opened at a position on the vehicle rear side of the face outlet passage 32. The foot blowing passage 33 also receives the temperature-controlled air from the mixing space 19. The downstream side of the foot outlet passage 33 is connected to a foot outlet through a foot duct (not shown), and air is blown out from the outlet toward the feet of the occupant.
　混合空間１９には、ロータリドア４１が配置される。各吹出通路３１～３３および各流入部１８，２１は、ロータリドア４１の径方向の外側に配置される。ロータリドア４１は、空調ケース１１内に回転可能（角変位可能）に支持される。ロータリドア４１は、例えば樹脂材料からなり、回転軸（駆動軸）Ｌから所定量離れた円弧状の壁部であるドア板部４２を有する。ロータリドア４１のドア板部４２は、回転軸Ｌを中心に回転（角変位）する。ドア板部４２は、３つの開口部５１～５３を有する。ドア板部４２の３つの開口部５１～５３は、各吹出通路３１～３３および各流入部１８，２１を開閉するための部分である。たとえばロータリドア４１の回転による第１開口部５１および第３開口部５３の変位によって、３つの吹出通路３１～３３と連通し、その通路面積が調節される。またたとえばロータリドア４１の回転による第１開口部５１の変位によって、ロータリドア４１の内側と冷風流入部１８とが連通して開状態となる。冷風流入部１８が開状態になると、冷風がロータリドア４１の径方向の内側に向けて流れる。同様に、たとえばロータリドア４１の回転による第２開口部５２の変位によって、ロータリドア４１の内側と温風流入部２１とが連通して開状態となる。温風流入部２１が開状態になると、温風がロータリドア４１の径方向の内側に向けて流れる。 A rotary door 41 is disposed in the mixing space 19. The blowout passages 31 to 33 and the inflow portions 18 and 21 are arranged on the outer side in the radial direction of the rotary door 41. The rotary door 41 is supported in the air conditioning case 11 so as to be rotatable (can be angularly displaced). The rotary door 41 is made of, for example, a resin material, and includes a door plate portion 42 that is an arcuate wall portion separated from the rotation shaft (drive shaft) L by a predetermined amount. The door plate portion 42 of the rotary door 41 rotates (angular displacement) about the rotation axis L. The door plate portion 42 has three openings 51 to 53. The three openings 51 to 53 of the door plate portion 42 are portions for opening and closing the outlet passages 31 to 33 and the inflow portions 18 and 21. For example, the displacement of the first opening 51 and the third opening 53 due to the rotation of the rotary door 41 communicates with the three outlet passages 31 to 33, and the passage area is adjusted. Further, for example, due to the displacement of the first opening 51 due to the rotation of the rotary door 41, the inside of the rotary door 41 and the cold air inflow portion 18 communicate with each other to be in the open state. When the cold air inflow portion 18 is in the open state, the cold air flows toward the inside of the rotary door 41 in the radial direction. Similarly, for example, due to the displacement of the second opening 52 due to the rotation of the rotary door 41, the inside of the rotary door 41 and the hot air inflow portion 21 communicate with each other to be in an open state. When the warm air inflow portion 21 is in the open state, the warm air flows toward the inside of the rotary door 41 in the radial direction.
　換言すると、デフロスタ吹出通路３１、フェイス吹出通路３２、フット吹出通路３３、冷風流入部１８および温風流入部２１は、ロータリドア４１により開閉されるようになっている。ロータリドア４１は、その回動停止位置に応じて、デフロスタ吹出通路３１、フェイス吹出通路３２、およびフット吹出通路３３のいずれか１つもしくは複数を開く吹出モードを形成するようになっている。したがってロータリドア４１は、吹出モードを切り替えるいわゆる吹出モードドアとして機能する。またロータリドア４１は、その回動停止位置に応じて、冷風流入部１８および温風流入部２１の開閉割合と調節して、温風と冷風との流量比を制御する。したがってロータリドア４１は、いわゆるエアミックスドアとしても機能する。 In other words, the defroster outlet passage 31, the face outlet passage 32, the foot outlet passage 33, the cold air inflow portion 18, and the hot air inflow portion 21 are opened and closed by the rotary door 41. The rotary door 41 is configured to form a blowing mode in which any one or more of the defroster blowing passage 31, the face blowing passage 32, and the foot blowing passage 33 are opened according to the rotation stop position. Accordingly, the rotary door 41 functions as a so-called blow mode door that switches the blow mode. Further, the rotary door 41 controls the flow rate ratio between the warm air and the cool air by adjusting the open / close ratio of the cool air inflow portion 18 and the warm air inflow portion 21 according to the rotation stop position. Therefore, the rotary door 41 also functions as a so-called air mix door.
　またロータリドア４１の径方向の内側には、冷風ガイド６１と温風ガイド６２とが設けられる。冷風ガイド６１は、冷風流入部１８からの冷風をロータリドア４１の中央に案内するための部材である。温風ガイド６２は、温風流入部２１からの温風をロータリドア４１の中央に案内するための部材である。冷風ガイド６１および温風ガイド６２は、ロータリドア４１と一体成形によって構成され、ロータリドア４１と一体に回転する。 Further, a cold air guide 61 and a hot air guide 62 are provided inside the rotary door 41 in the radial direction. The cold air guide 61 is a member for guiding the cold air from the cold air inflow portion 18 to the center of the rotary door 41. The warm air guide 62 is a member for guiding the warm air from the warm air inflow portion 21 to the center of the rotary door 41. The cold air guide 61 and the hot air guide 62 are formed integrally with the rotary door 41 and rotate integrally with the rotary door 41.
　冷風ガイド６１は、図２の紙面の厚み方向（車両左右方向）に位置する壁部に連結される。温風ガイド６２は、一端部がドア板部４２に連結される。また冷風ガイド６１および温風ガイド６２は、一端部から他端部が径方向にロータリドア４１の中央に向かって延びる。冷風ガイド６１と温風ガイド６２とのロータリドア４１の中央側の端部は、間隔があいている。ロータリドア４１の中央は、ロータリドア４１の回転中心である。そして冷風ガイド６１の長さＬ１と温風ガイド６２の長さＬ２は、互いに等しい。また冷風ガイド６１の他端部と温風ガイド６２の他端部との間隔Ｌ３は、フェイス吹出通路３２の周方向における通路幅Ｌ４およびフット吹出通路３３の周方向における通路幅Ｌ５よりも大きい。 The cold air guide 61 is connected to a wall portion located in the thickness direction (the vehicle left-right direction) of FIG. One end of the warm air guide 62 is connected to the door plate 42. The cold air guide 61 and the hot air guide 62 extend from one end to the center of the rotary door 41 in the radial direction at the other end. The ends of the cold air guide 61 and the hot air guide 62 on the center side of the rotary door 41 are spaced apart. The center of the rotary door 41 is the rotation center of the rotary door 41. The length L1 of the cold air guide 61 and the length L2 of the hot air guide 62 are equal to each other. The distance L3 between the other end of the cold air guide 61 and the other end of the hot air guide 62 is larger than the passage width L4 in the circumferential direction of the face blowing passage 32 and the passage width L5 in the circumferential direction of the foot blowing passage 33.
　上記構成の車両用空調装置１０は、例えば、空調操作パネル（図示せず）に設けられた各種操作部材からの操作信号および空調制御用の各種センサからのセンサ信号が入力される電子制御装置（図示せず）を備えている。この制御装置の出力信号により各ドアの位置が制御されるようになっている。 The vehicle air conditioner 10 having the above-described configuration is, for example, an electronic control unit (inputting operation signals from various operation members provided on an air conditioning operation panel (not shown) and sensor signals from various sensors for air conditioning control). (Not shown). The position of each door is controlled by the output signal of this control device.
　次に、ロータリドア４１の動作に関して説明する。図３～図７は、５つの吹出モードにおけるロータリドア４１の位置を示す図である。本実施形態の車両用空調装置１０では、図３～図７に示すように、吹出モードとして、たとえばフェイス（ＦＡＣＥ）モード、バイレベル（Ｂ／Ｌ）モード、フット（ＦＯＯＴ）モード、フットデフロスタ（Ｆ／Ｄ）モードおよびデフロスタ（ＤＥＦ）モードがある。表１は、各モードにおける各吹出通路３１～３３および各流入部１８，２１の開閉状態を示す。表１では、開状態を○で示し、閉状態を×で示す。 Next, the operation of the rotary door 41 will be described. 3 to 7 are views showing the position of the rotary door 41 in the five blowing modes. In the vehicle air conditioner 10 of the present embodiment, as shown in FIGS. 3 to 7, for example, a face (FACE) mode, a bi-level (B / L) mode, a foot (FOOT) mode, a foot defroster ( F / D) mode and defroster (DEF) mode. Table 1 shows the open / closed states of the outlet passages 31 to 33 and the inflow portions 18 and 21 in each mode. In Table 1, the open state is indicated by ◯, and the closed state is indicated by ×.
Figure JPOXMLDOC01-appb-T000001
 　先ず、フェイスモードに関して、図３を用いて説明する。フェイスモードは、主に乗員上半身に向けて空調風（空調用空気）を吹き出すモードである。フェイスモードでは、フェイス吹出通路３２が開状態であり、フット吹出通路３３が閉状態であり、デフロスタ吹出通路３１が閉状態であり、冷風流入部１８が開状態であり、温風流入部２１が閉状態となる位置にロータリドア４１を配置している。これによって混合空間１９からフェイス吹出通路３２を介して空調風が車室内に冷風が送風される。したがってフェイスモードでは、ヒータコア１５の熱交換コア部１６を通過する温風通路２０を全閉して冷風通路１７を全開する最大冷房位置にロータリドア４１を配置している。
Figure JPOXMLDOC01-appb-T000001
 First, the face mode will be described with reference to FIG. The face mode is a mode in which conditioned air (air for air conditioning) is blown mainly toward the passenger's upper body. In the face mode, the face outlet passage 32 is open, the foot outlet passage 33 is closed, the defroster outlet passage 31 is closed, the cold air inlet 18 is open, and the hot air inlet 21 is closed. The rotary door 41 is arranged at a position where the state is reached. As a result, the conditioned air is blown from the mixing space 19 through the face blowing passage 32 into the passenger compartment. Therefore, in the face mode, the rotary door 41 is disposed at the maximum cooling position where the hot air passage 20 passing through the heat exchange core portion 16 of the heater core 15 is fully closed and the cold air passage 17 is fully opened.
　フェイスモードの場合、冷風流入部１８が開状態にある。したがって冷風ガイド６１は冷風をロータリドア４１の中央に向けて案内する。そのまま冷風は、冷風流入部１８に対向する位置にあるフェイス吹出通路３２に冷風が向かう。したがって冷風の通風抵抗を冷風ガイド６１によって軽減することができる。 In the face mode, the cold air inlet 18 is in an open state. Therefore, the cold air guide 61 guides the cold air toward the center of the rotary door 41. As it is, the cool air flows toward the face blowing passage 32 at a position facing the cold air inflow portion 18. Therefore, the cold air flow resistance can be reduced by the cold air guide 61.
　次に、バイレベルモードに関して、図４を用いて説明する。バイレベルモードは、乗員上半身および乗員の足元に向けて空調風を吹き出すモードである。バイレベルモードでは、フェイス吹出通路３２およびフット吹出通路３３が開状態であり、デフロスタ吹出通路３１が閉状態であり、冷風流入部１８および温風流入部２１が開状態となる位置にロータリドア４１を配置している。これによって混合空間１９からフェイス吹出通路３２およびフット吹出通路３３を介して空調風が車室内に送風される。したがってバイレベルモードでは、温風通路２０および冷風通路１７の両方を開にする位置にロータリドア４１を配置している。 Next, the bi-level mode will be described with reference to FIG. The bi-level mode is a mode in which conditioned air is blown toward the passenger's upper body and the feet of the passenger. In the bi-level mode, the rotary door 41 is placed at a position where the face blowing passage 32 and the foot blowing passage 33 are open, the defroster blowing passage 31 is closed, and the cold air inflow portion 18 and the hot air inflow portion 21 are open. It is arranged. As a result, the conditioned air is blown from the mixing space 19 through the face blowing passage 32 and the foot blowing passage 33 into the vehicle interior. Therefore, in the bi-level mode, the rotary door 41 is arranged at a position where both the hot air passage 20 and the cold air passage 17 are opened.
　バイレベルモードの場合には、冷風ガイド６１の冷風流入部１８側の端部の位置は冷風流入部１８の開口の下方側の端部に位置する。これによって冷風ガイド６１は、冷風流入部１８から流入した冷風をロータリドア４１の中央に案内することができる。 In the case of the bi-level mode, the position of the cold air inflow portion 18 side end portion of the cold air guide 61 is located at the lower end portion of the opening of the cold air inflow portion 18. Thus, the cold air guide 61 can guide the cold air flowing in from the cold air inflow portion 18 to the center of the rotary door 41.
　次に、フットモードに関して、図５を用いて説明する。フットモードは、主に乗員の足元に向けて空調風を吹き出すモードである。フットモードでは、フェイス吹出通路３２およびデフロスタ吹出通路３１が閉状態であり、フット吹出通路３３が開状態であり、冷風流入部１８および温風流入部２１が開状態となる位置にロータリドア４１を配置している。これによって混合空間１９からフット吹出通路３３を介して空調風が車室内に送風される。またフットモードでは、温風通路２０および冷風通路１７の両方を開にする位置にロータリドア４１を配置しており、バイレベルモードよりも温風流入部２１の開口が広く、冷風流入部１８の開口が狭い。 Next, the foot mode will be described with reference to FIG. The foot mode is a mode in which air conditioned air is blown mainly toward the passenger's feet. In the foot mode, the rotary door 41 is disposed at a position where the face blowing passage 32 and the defroster blowing passage 31 are closed, the foot blowing passage 33 is opened, and the cold air inflow portion 18 and the hot air inflow portion 21 are in the open state. is doing. As a result, the conditioned air is blown from the mixing space 19 through the foot outlet passage 33 into the vehicle interior. Further, in the foot mode, the rotary door 41 is disposed at a position where both the hot air passage 20 and the cold air passage 17 are opened, and the opening of the hot air inflow portion 21 is wider than the bilevel mode, and the opening of the cold air inflow portion 18 is opened. Is narrow.
　フットモードの場合には、冷風ガイド６１の冷風流入部１８側の端部の位置は冷風流入部１８の開口の上方側の端部に位置する。これによって冷風ガイド６１は、冷風流入部１８から流入した冷風をロータリドア４１の中央に案内することができる。また温風ガイド６２の温風流入部２１側の端部の位置は温風流入部２１の開口の上方側の端部に位置する。これによって温風ガイド６２は、温風流入部２１から流入した温風をロータリドア４１の中央に案内することができる。 In the foot mode, the position of the end of the cold air guide 61 on the cold air inflow portion 18 side is located at the upper end of the opening of the cold air inflow portion 18. Thus, the cold air guide 61 can guide the cold air flowing in from the cold air inflow portion 18 to the center of the rotary door 41. Further, the position of the end portion of the warm air guide 62 on the warm air inflow portion 21 side is located at the end portion on the upper side of the opening of the warm air inflow portion 21. Accordingly, the hot air guide 62 can guide the hot air flowing in from the hot air inflow portion 21 to the center of the rotary door 41.
　次に、フットデフロスタモード（以下、「フットデフモード」ということがある）に関して、図６を用いて説明する。フットデフモードは、前側窓ガラスおよび乗員の足元に向けて空調風を吹き出すモードである。フットデフモードでは、フェイス吹出通路３２が閉状態であり、フット吹出通路３３およびデフロスタ吹出通路３１が開状態であり、冷風流入部１８および温風流入部２１が開状態となる位置にロータリドア４１を配置している。これによって混合空間１９からデフロスタ吹出通路３１およびフット吹出通路３３を介して空調風が車室内に送風される。またフットデフモードでは、温風通路２０および冷風通路１７の両方を開にする位置にロータリドア４１を配置しており、フットモードよりも温風流入部２１の開口が広く、冷風流入部１８の開口が狭い。 Next, the foot defroster mode (hereinafter sometimes referred to as “foot differential mode”) will be described with reference to FIG. The foot differential mode is a mode in which conditioned air is blown toward the front window glass and the feet of the passenger. In the foot differential mode, the face outlet passage 32 is closed, the foot outlet passage 33 and the defroster outlet passage 31 are open, and the rotary door 41 is placed at a position where the cold air inlet 18 and the hot air inlet 21 are open. It is arranged. As a result, the conditioned air is blown from the mixing space 19 through the defroster outlet passage 31 and the foot outlet passage 33 into the vehicle interior. Further, in the foot differential mode, the rotary door 41 is arranged at a position where both the hot air passage 20 and the cold air passage 17 are opened, and the opening of the hot air inflow portion 21 is wider than the foot mode, and the opening of the cold air inflow portion 18 is opened. Is narrow.
　このようにフットモード、フットデフモードおよびバイレベルモードの場合には、第１開口部５１が冷風流入部１８を開状態にし、第２開口部５２が温風流入部２１を開状態にする。そして冷風ガイド６１は冷風をロータリドア４１の中央へ案内する位置にあり、温風ガイド６２は温風をロータリドア４１の中央へ案内する位置にある。したがって冷風と温風とが、図４～図６に示すようにロータリドア４１の中央で衝突し、冷風と温風とを混合させることができる。換言すると、フットモード、フットデフモードおよびバイレベルモードにおいて、冷暖風を対向させて攪拌を促進させることができる。 Thus, in the foot mode, the foot differential mode, and the bi-level mode, the first opening 51 opens the cold air inflow portion 18 and the second opening 52 opens the hot air inflow portion 21. The cool air guide 61 is in a position for guiding the cool air to the center of the rotary door 41, and the warm air guide 62 is in a position for guiding the warm air to the center of the rotary door 41. Therefore, the cold air and the hot air collide at the center of the rotary door 41 as shown in FIGS. 4 to 6, and the cold air and the hot air can be mixed. In other words, in the foot mode, the foot differential mode, and the bilevel mode, the cooling and warm air can be opposed to promote stirring.
　次に、デフロスタモードに関して、図７を用いて説明する。デフロスタモードは、前側窓ガラスに向けて空調風を吹き出すモードである。デフロスタモードでは、フェイス吹出通路３２およびフット吹出通路３３が閉状態であり、デフロスタ吹出通路３１が開状態であり、冷風流入部１８が閉状態であり、温風流入部２１が開状態となる位置にロータリドア４１を配置している。これによって混合空間１９からデフロスタ吹出通路３１を介して空調風が車室内に送風される。またデフロスタモードでは、ヒータコア１５の熱交換コア部１６を通過する温風通路２０を全開して冷風通路１７を全閉する最大暖房位置にロータリドア４１を配置している。 Next, the defroster mode will be described with reference to FIG. The defroster mode is a mode in which conditioned air is blown toward the front window glass. In the defroster mode, the face blowing passage 32 and the foot blowing passage 33 are in the closed state, the defroster blowing passage 31 is in the open state, the cold air inflow portion 18 is in the closed state, and the hot air inflow portion 21 is in the open state. A rotary door 41 is arranged. As a result, the conditioned air is blown from the mixing space 19 through the defroster outlet passage 31 into the vehicle interior. In the defroster mode, the rotary door 41 is disposed at the maximum heating position where the hot air passage 20 passing through the heat exchange core portion 16 of the heater core 15 is fully opened and the cold air passage 17 is fully closed.
　次に、冷風ガイド６１および温風ガイド６２の効果に関して、図８および図９を用いて説明する。図８および図９の横軸は、各ガイドの長さＬ１，Ｌ２を示している。ここでフェイス通路幅Ｌ４は、４０ｍｍとし、フット通路幅Ｌ５は、５０ｍｍとする。またロータリドア４１の直径は、１２５ｍｍとする。 Next, the effects of the cold air guide 61 and the hot air guide 62 will be described with reference to FIGS. 8 and 9 indicate the lengths L1 and L2 of each guide. Here, the face passage width L4 is 40 mm, and the foot passage width L5 is 50 mm. The diameter of the rotary door 41 is 125 mm.
　前述のように、冷風ガイド６１長さＬ１と温風ガイド６２の長さＬ２は同一長さに設定される（Ｌ１＝Ｌ２）。またガイド間長さＬ３は、フェイス通路幅Ｌ４とフット通路幅Ｌ５より大きく設定される（Ｌ３＞Ｌ４、Ｌ５）。この寸法の設定根拠について説明する。 As described above, the length L1 of the cold air guide 61 and the length L2 of the hot air guide 62 are set to the same length (L1 = L2). The inter-guide length L3 is set larger than the face passage width L4 and the foot passage width L5 (L3> L4, L5). The basis for setting these dimensions will be described.
　図８に示すように、ガイド長さＬ１，Ｌ２を大きくするにつれて、より中央で多くの冷風と温風が衝突するので、上下温度差を縮小する。そしてガイド長さが５０ｍｍを越えると、特にバイレベルモードにおいて急に車室内の上下温度差が小さくなる。換言すると、ガイド間長Ｌ３さが、通路幅（Ｌ４，Ｌ５）より大きくなるとバイレベルモードにおいて冷風と暖風が分離するために上下温度差が拡大する。 As shown in FIG. 8, as the guide lengths L1 and L2 are increased, more cold air and hot air collide with each other at the center, so that the upper and lower temperature difference is reduced. When the guide length exceeds 50 mm, the difference in the upper and lower temperatures in the vehicle compartment suddenly decreases particularly in the bi-level mode. In other words, when the guide-to-guide length L3 becomes larger than the passage width (L4, L5), the vertical temperature difference increases because the cold air and the warm air are separated in the bi-level mode.
　しかし、ガイド長さがフェイス通路幅Ｌ４の４０ｍｍを越えると、図９に示すように、フェイスモードで圧損が上昇する。さらにガイド長さがフット通路幅Ｌ５の５０ｍｍを越えると、図９に示すように、フットモードで圧損が上昇する。したがって混合度合いと圧損との関係から、ガイド長さＬ１，Ｌ２は、図８および図９にて二点鎖線で示す範囲が好ましい。ガイド長さＬ１，Ｌ２とガイド間長さＬ３と関係は、ガイド長さＬ１，Ｌ２が大きくなると、ガイド間長さＬ３が小さくなる関係にある。ガイド間長さＬ３がフット通路幅と同じ５０ｍｍの場合は、ガイド長さＬ１，Ｌ２が３７．５ｍｍとなる。したがって図８および図９に二点鎖線で示す範囲となる。したがって前述のように、ガイド間長さＬ３は、フェイス通路幅Ｌ４とフット通路幅Ｌ５より大きく設定される（Ｌ３＞Ｌ４、Ｌ５）。 However, when the guide length exceeds 40 mm of the face passage width L4, the pressure loss increases in the face mode as shown in FIG. Further, when the guide length exceeds 50 mm of the foot passage width L5, the pressure loss increases in the foot mode as shown in FIG. Therefore, from the relationship between the degree of mixing and the pressure loss, the guide lengths L1 and L2 are preferably in a range indicated by a two-dot chain line in FIGS. The relationship between the guide lengths L1, L2 and the inter-guide length L3 is such that the inter-guide length L3 decreases as the guide lengths L1, L2 increase. When the inter-guide length L3 is 50 mm which is the same as the foot passage width, the guide lengths L1 and L2 are 37.5 mm. Therefore, the range shown by the two-dot chain line in FIGS. Therefore, as described above, the inter-guide length L3 is set larger than the face passage width L4 and the foot passage width L5 (L3> L4, L5).
　以上説明したように本実施形態のでは、ロータリドア４１の内側に冷風ガイド６１および温風ガイド６２が設けられる。各ガイド６１，６２は、それぞれロータリドア４１の中央に冷風および温風をそれぞれ案内する。したがって冷風流入部１８および温風流入部２１からロータリドア４１の内側に流入した空気を、ロータリドア４１の中央で衝突させることができる。これによってロータリドア４１の中央にて、冷風と温風が混合される。ロータリドア４１が回転すると、ロータリドア４１には複数の開口部５１～５３が設けられているので、これら開口部５１～５３の位置と複数の吹出通路３１～３３との相対位置が変化し、複数の吹出通路３１～３３を開閉する。したがってロータリドア４１は、いわゆるモードドアとして機能する。前述のようにロータリドア４１の内側にて冷風と温風とが混合されるので、ロータリドア４１を通過して各吹出通路３１～３３に流れる空気は混合した空気とすることができる。これによって冷風と暖風との混合に優れ、モードドアとして機能するロータリドア４１を実現することができる。 As described above, in the present embodiment, the cold air guide 61 and the hot air guide 62 are provided inside the rotary door 41. Each guide 61, 62 guides cold air and hot air to the center of the rotary door 41, respectively. Therefore, the air that has flowed into the rotary door 41 from the cold air inflow portion 18 and the hot air inflow portion 21 can collide with the center of the rotary door 41. As a result, cold air and hot air are mixed in the center of the rotary door 41. When the rotary door 41 rotates, the rotary door 41 is provided with a plurality of openings 51 to 53, so that the positions of the openings 51 to 53 and the relative positions of the plurality of outlet passages 31 to 33 change. A plurality of outlet passages 31 to 33 are opened and closed. Therefore, the rotary door 41 functions as a so-called mode door. As described above, since the cold air and the warm air are mixed inside the rotary door 41, the air that passes through the rotary door 41 and flows into the blowout passages 31 to 33 can be mixed air. As a result, it is possible to realize a rotary door 41 that is excellent in mixing cold air and warm air and functions as a mode door.
　また本実施形態では、冷風ガイド６１および温風ガイド６２は、ロータリドア４１と一体に回転する。これによって別体にする構成に比べて、成型工数および組み付け工数を減少させることができる。 In this embodiment, the cold air guide 61 and the hot air guide 62 rotate integrally with the rotary door 41. As a result, the number of man-hours and the number of assembling steps can be reduced as compared with the configuration of separate bodies.
　さらに本実施形態では、フットモード、フットデフモードおよびバイレベルモードの場合には、第１開口部５１が冷風流入部１８を開状態にし、第２開口部５２が温風流入部２１を開状態にある。そして、さらに冷風ガイド６１は冷風をロータリドア４１の中央へ案内する位置にあり、温風ガイド６２は温風をロータリドア４１の中央へ案内する位置にある。したがってフットモード、フットデフモードおよびバイレベルモードの場合に、冷風と温風とをロータリドア４１の中央で衝突させることができる。これによってこれらの吹出しモードで、車室内の上下温度差を小さくし、設定した温度に近づけることができる。
（第２実施形態）
　次に、本開示の第２実施形態に関して、図１０および図１１を用いて説明する。本実施形態では、車両用空調装置１０Ａの冷風ガイド６１Ａの形状に特徴を有する。本実施形態の冷風ガイド６１Ａは、図１０に示すように、ロータリドア４１の中央側の端部が屈曲する屈曲部７１を有している。 Further, in the present embodiment, in the foot mode, the foot differential mode, and the bi-level mode, the first opening 51 opens the cold air inflow portion 18, and the second opening 52 opens the hot air inflow portion 21. is there. Further, the cold air guide 61 is in a position for guiding the cold air to the center of the rotary door 41, and the hot air guide 62 is in a position for guiding the hot air to the center of the rotary door 41. Therefore, in the foot mode, the foot differential mode, and the bi-level mode, the cold air and the hot air can collide with each other at the center of the rotary door 41. Thus, in these blow-out modes, the temperature difference between the upper and lower sides in the passenger compartment can be reduced and brought close to the set temperature.
(Second Embodiment)
Next, a second embodiment of the present disclosure will be described with reference to FIGS. 10 and 11. The present embodiment is characterized by the shape of the cold air guide 61A of the vehicle air conditioner 10A. As shown in FIG. 10, the cold air guide 61 </ b> A of the present embodiment has a bent portion 71 where the end portion on the center side of the rotary door 41 is bent.
　屈曲部７１は、屈曲して延びている先端部分である。屈曲部７１は、図１１に示すように、デフロスタモードの場合、温風ガイド６２によって案内された温風をデフロスタ吹出通路３１に案内する位置にある。この屈曲した屈曲部７１によって、温風が冷風ガイド６１Ａによって下方側に案内されることを抑制することができる。これによってデフモードにおいて、圧力損失を低減することができる。 The bent portion 71 is a tip portion that is bent and extended. As shown in FIG. 11, the bent portion 71 is in a position for guiding the warm air guided by the warm air guide 62 to the defroster outlet passage 31 in the defroster mode. The bent portion 71 can prevent the warm air from being guided downward by the cold air guide 61A. As a result, pressure loss can be reduced in the differential mode.
　以上、本開示の好ましい実施形態について説明したが、本開示は上述した実施形態に何ら制限されることなく、本開示の主旨を逸脱しない範囲において種々変形して実施することが可能である。 The preferred embodiments of the present disclosure have been described above. However, the present disclosure is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present disclosure.
　上記実施形態の構造は、あくまで例示であって、本開示の範囲はこれらの記載の範囲に限定されるものではない。 The structure of the above embodiment is merely an example, and the scope of the present disclosure is not limited to the scope of these descriptions.
　前述の第１実施形態では、ロータリドア４１には３つの開口部５１～５３が設けられるが、３つに限るものではなく、少なくとも２つ以上の開口部であればよい。すなわち１つの開口部が吹出通路を開閉するための開口部であり、もう１つの開口部が、流入部を開閉するための開口部であればよい。 In the first embodiment described above, the rotary door 41 is provided with the three openings 51 to 53, but is not limited to three, and may be at least two or more openings. That is, one opening may be an opening for opening and closing the outlet passage, and the other opening may be an opening for opening and closing the inflow portion.
　前述の第１実施形態では、各ガイド６１，６２の長さ関係について、Ｌ１＝Ｌ２、Ｌ３＞Ｌ４、かつＬ３＞Ｌ５であったが、Ｌ１＝Ｌ２に限るものではなく、Ｌ１＞Ｌ２またはＬ２＞Ｌ１であってもよい。たとえば、Ｌ３＞Ｌ４、かつＬ３＞Ｌ５の関係を守りながら、Ｌ１＞Ｌ２とすると、車室内の上下温度差（冷暖風の攪拌）について前述の第１実施形態と同様の作用および効果を達成する。この場合、フェイスモードにおける圧損は上昇するが、フットモードにおける圧損を低下することができる。またたとえば、Ｌ３＞Ｌ４、かつＬ３＞Ｌ５の関係を守りながら、Ｌ２＞Ｌ１とすると、上下温度差（冷暖風の攪拌）について前述の第１実施形態と同様の作用および効果を達成する。この場合、フットモードにおける圧損は上昇するが、フェイスモードにおける圧損を低下することができる。したがってフットモードおよびフェイスモードのダクトなどを含めて圧損を考慮して、適宜、ガイド長さの大小関係を決定することが好ましい。 In the first embodiment described above, the length relationship between the guides 61 and 62 is L1 = L2, L3> L4, and L3> L5, but is not limited to L1 = L2, and L1> L2 or L2 > L1 may be sufficient. For example, when L1> L2 is satisfied while maintaining the relationship of L3> L4 and L3> L5, the same operation and effect as in the first embodiment described above are achieved with respect to the temperature difference between the upper and lower sides of the vehicle interior (cooling / heating air agitation). . In this case, the pressure loss in the face mode increases, but the pressure loss in the foot mode can be reduced. Further, for example, when L2> L1 while maintaining the relationship of L3> L4 and L3> L5, the same operation and effect as those of the first embodiment described above are achieved with respect to the temperature difference between the upper and lower sides (cooling / heating air stirring). In this case, the pressure loss in the foot mode increases, but the pressure loss in the face mode can be reduced. Therefore, it is preferable to appropriately determine the relationship between the guide lengths in consideration of pressure loss including the foot mode and face mode ducts.
　また前述の第１実施形態では、冷風ガイド６１および温風ガイド６２は、ロータリドア４１と一体に構成されているが、一体式に限るものではない。たとえば、各ガイド６１，６２とロータリドア４１とを別体部品として、それぞれ独立させてもよい。この場合、各ガイド６１，６２の配置がモードドアの回転とともに回転しないために、上下温度差の縮小量がロータリドア４１の位置によらず一定にすることができる。 In the first embodiment described above, the cold air guide 61 and the hot air guide 62 are configured integrally with the rotary door 41, but are not limited to an integrated type. For example, the guides 61 and 62 and the rotary door 41 may be independent from each other. In this case, since the arrangement of the guides 61 and 62 does not rotate with the rotation of the mode door, the amount of reduction in the vertical temperature difference can be made constant regardless of the position of the rotary door 41.
　また、冷風ガイド６１の延設方向に延びる仮想直線は、温風ガイド６２の延設方向に延びる仮想直線と交差してもよい。 Further, the virtual straight line extending in the extending direction of the cold air guide 61 may intersect with the virtual straight line extending in the extending direction of the hot air guide 62.

Claims (6)

  1. 　車室内に開口する複数の吹出口から前記車室内に向けて空調用空気を吹き出す車両用空調装置であって、
    　内部に空気通路（１２）を形成する空調ケース（１１）と、
    　前記空調ケース内に回転可能に支持される円弧状の部材であって、円弧状の壁部（４２）と、前記円弧状の壁部に設けられた複数の開口部（５１～５３）とを有するロータリドア（４１）と、
    　前記ロータリドアの外側に前記ロータリドアの周方向に並んで配置される複数の吹出通路であって、前記ロータリドアの回転による前記開口部の変位によって開閉し、前記複数の吹出口にそれぞれ接続される複数の吹出通路（３１～３３）と、
    　前記ロータリドアの外側に配置される冷風流入部であって、前記ロータリドアの回転による前記開口部の変位によって前記ロータリドアの内側と連通して開状態となり、前記開状態では冷風が前記ロータリドアの内側に向けて流れる冷風流入部（１８）と、
    　前記ロータリドアの外側に配置される温風流入部であって、前記ロータリドアの回転による前記開口部の変位によって前記ロータリドアの内側と連通して開状態となり、前記開状態では温風が前記ロータリドアの内側に向けて流れる温風流入部（２１）と、
    　前記ロータリドアの内側に設けられ、前記冷風流入部からの冷風を前記ロータリドアの中央に案内する冷風ガイド（６１、６１Ａ）と、
    　前記ロータリドアの内側に設けられ、前記温風流入部からの温風を前記ロータリドアの中央に案内する温風ガイド（６２）と、を含む車両用空調装置。     A vehicle air conditioner that blows out air for air conditioning from a plurality of air outlets that open into the vehicle interior,
    An air conditioning case (11) forming an air passage (12) therein;
    An arc-shaped member rotatably supported in the air-conditioning case, the arc-shaped wall (42), and a plurality of openings (51 to 53) provided in the arc-shaped wall. A rotary door (41) having;
    A plurality of outlet passages arranged outside the rotary door in a circumferential direction of the rotary door, and opened and closed by the displacement of the opening due to the rotation of the rotary door, and connected to the outlets, respectively. A plurality of outlet passages (31 to 33),
    A cold air inflow portion disposed outside the rotary door, wherein the opening is in communication with the inside of the rotary door due to displacement of the opening due to rotation of the rotary door, and in the open state, the cold air flows into the rotary door. Cold air inflow part (18) flowing toward the inside of
    A hot air inflow portion disposed outside the rotary door, which is in an open state in communication with the inside of the rotary door due to displacement of the opening due to the rotation of the rotary door, and in the open state, the hot air is in the open state. A hot air inflow portion (21) flowing toward the inside of the door;
    A cold air guide (61, 61A) that is provided inside the rotary door and guides the cold air from the cold air inflow portion to the center of the rotary door;
    A vehicle air conditioner including a warm air guide (62) provided inside the rotary door and guiding warm air from the warm air inflow portion to the center of the rotary door.
  2. 　前記冷風ガイドおよび前記温風ガイドは、前記ロータリドアと一体に回転する請求項１に記載の車両用空調装置。 The vehicle air conditioner according to claim 1, wherein the cold air guide and the hot air guide rotate integrally with the rotary door.
  3. 　前記複数の吹出通路は、
    　　前記空調ケースに設けられて車両前面窓ガラスの内面に向けて空調用空気を吹き出すデフロスタ吹出口に接続されるデフロスタ吹出通路（３１）と、
    　　前記空調ケースに設けられて乗員の頭胸部に向けて空調用空気を吹き出すフェイス吹出口に接続されるフェイス吹出通路（３２）と、
    　　前記空調ケースに設けられて乗員の足もとに向けて空調用空気を吹き出すフット吹出口に接続されるフット吹出通路（３３）と、を含み、
    　前記ロータリドアの前記複数の開口部は、第１開口部（５１）、第２開口部（５２）および第３開口部（５３）を含み、
    　前記冷風流入部および前記デフロスタ吹出通路は、前記ロータリドアの回転による前記第１開口部の変位によって開閉し、
    　前記温風流入部は、前記ロータリドアの回転による前記第２開口部の変位によって開閉し、
    　前記フェイス吹出通路および前記フット吹出通路は、前記ロータリドアの回転よる前記第３開口部の変位によって開閉し、
    　前記ロータリドアは、フットモードの場合には、前記第３開口部が前記フット吹出通路と連通し、前記円弧状の壁部が前記フェイス吹出通路および前記デフロスタ吹出通路を閉塞する位置にあり、
    　前記ロータリドアは、フットデフロスタモードの場合には、前記第１開口部が前記デフロスタ吹出通路と連通し、前記第３開口部が前記フット吹出通路と連通し、前記円弧状の壁部が前記フェイス吹出通路を閉塞する位置にあり、
    　前記ロータリドアは、バイレベルモードの場合には、前記第３開口部が前記フェイス吹出通路および前記フット吹出通路と連通し、前記円弧状の壁部が前記デフロスタ吹出通路を閉塞する位置にあり、
    　前記ロータリドアは、フェイスモードの場合には、前記第３開口部が前記フェイス吹出通路と連通し、前記円弧状の壁部が前記フット吹出通路およびデフロスタ吹出通路を閉塞する位置にあり、
    　前記ロータリドアは、デフロスタモードの場合には、前記第１開口部が前記デフロスタ吹出通路と連通し、前記円弧状の壁部が前記フット吹出通路および前記フェイス吹出通路を閉塞する位置にあり、
    　前記フットモード、前記フットデフロスタモードおよび前記バイレベルモードの場合には、前記第１開口部が前記冷風流入部と連通し、前記第２開口部が前記温風流入部と連通し、前記冷風ガイドは冷風を前記ロータリドアの中央へ案内する位置にあり、前記温風ガイドは温風を前記ロータリドアの中央へ案内する位置にあり、
    　前記フェイスモードの場合には、前記第１開口部が前記冷風流入部と連通し、前記円弧状の壁部が前記温風流入部を閉塞し、前記冷風ガイドは冷風を前記フェイス吹出通路に案内する位置にあり、
    　前記デフロスタモードの場合には、前記円弧状の壁部が前記冷風流入部を閉塞し、前記第２開口部が前記温風流入部と連通し、前記温風ガイドは温風を前記デフロスタ吹出通路に案内する位置にある請求項２に記載の車両用空調装置。     The plurality of blowing passages are
    A defroster outlet passage (31) connected to a defroster outlet that is provided in the air conditioning case and blows air for air conditioning toward the inner surface of the vehicle front window glass;
    A face outlet passage (32) provided in the air conditioning case and connected to a face outlet for blowing air for air conditioning toward the occupant's head and chest;
    A foot outlet passage (33) provided in the air conditioning case and connected to a foot outlet for blowing air for air conditioning toward the feet of the occupant,
    The plurality of openings of the rotary door include a first opening (51), a second opening (52), and a third opening (53),
    The cold air inflow portion and the defroster outlet passage are opened and closed by the displacement of the first opening due to the rotation of the rotary door,
    The warm air inflow portion opens and closes due to the displacement of the second opening due to the rotation of the rotary door,
    The face blowing passage and the foot blowing passage are opened and closed by the displacement of the third opening due to the rotation of the rotary door,
    When the rotary door is in the foot mode, the third opening is in communication with the foot outlet passage, and the arcuate wall is in a position to close the face outlet passage and the defroster outlet passage,
    When the rotary door is in the foot defroster mode, the first opening communicates with the defroster outlet passage, the third opening communicates with the foot outlet passage, and the arc-shaped wall portion is the face. It is in a position to close the outlet passage,
    In the bi-level mode, the rotary door is in a position where the third opening communicates with the face blowing passage and the foot blowing passage, and the arcuate wall closes the defroster blowing passage,
    In the face mode, the rotary door is in a position where the third opening communicates with the face blowing passage, and the arcuate wall portion closes the foot blowing passage and the defroster blowing passage,
    In the defroster mode, the rotary door is in a position where the first opening communicates with the defroster outlet passage, and the arc-shaped wall portion closes the foot outlet passage and the face outlet passage,
    In the foot mode, the foot defroster mode, and the bi-level mode, the first opening communicates with the cold air inflow portion, the second opening communicates with the hot air inflow portion, and the cold air guide In the position to guide the cold air to the center of the rotary door, the hot air guide is in a position to guide the hot air to the center of the rotary door,
    In the face mode, the first opening communicates with the cold air inflow portion, the arc-shaped wall portion closes the hot air inflow portion, and the cold air guide guides the cold air to the face outlet passage. In position
    In the defroster mode, the arc-shaped wall portion closes the cold air inflow portion, the second opening portion communicates with the hot air inflow portion, and the hot air guide guides the hot air to the defroster outlet passage. The vehicle air conditioner according to claim 2, wherein the vehicle air conditioner is in a position to be guided.
  4. 　前記冷風ガイドおよび前記温風ガイドは、前記ロータリドアの径方向に延び、
    　前記冷風ガイドと前記温風ガイドとの前記ロータリドアの中央側の端部間には、間隔が設けられており、
    　前記冷風ガイドの前記径方向における寸法と前記温風ガイドの前記径方向における寸法は、互いに等しい請求項１ないし３に記載の車両用空調装置。     The cold air guide and the hot air guide extend in a radial direction of the rotary door,
    A space is provided between the cold air guide and the warm air guide on the center side of the rotary door,
    The vehicle air conditioner according to any one of claims 1 to 3, wherein a dimension in the radial direction of the cold air guide and a dimension in the radial direction of the hot air guide are equal to each other.
  5. 　前記冷風ガイドと前記温風ガイドとの間の前記間隔は、前記フェイス吹出通路の前記周方向における通路幅および前記フット吹出通路の前記周方向における通路幅よりも大きい請求項４に記載の車両用空調装置。 5. The vehicle according to claim 4, wherein the distance between the cold air guide and the hot air guide is larger than a passage width in the circumferential direction of the face blowing passage and a passage width in the circumferential direction of the foot blowing passage. Air conditioner.
  6. 　前記冷風ガイド（６１Ａ）は、前記ロータリドアの中央側の端部（７１）が屈曲しており、
    　前記屈曲して延びている先端部分は、前記デフロスタモードの場合、前記温風ガイドによって案内された温風を前記デフロスタ吹出通路に案内する位置にある請求項３～５のいずれか１つに記載の車両用空調装置。     The cold air guide (61A) has a bent end (71) on the center side of the rotary door,
    The bent and extended tip portion is in a position for guiding the warm air guided by the warm air guide to the defroster outlet passage in the defroster mode. Vehicle air conditioner.
PCT/JP2014/001560 2013-03-27 2014-03-18 Vehicular air conditioner WO2014156061A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112014001663.2T DE112014001663T5 (en) 2013-03-27 2014-03-18 Vehicle air conditioning
BR112015024459-9A BR112015024459B1 (en) 2013-03-27 2014-03-18 vehicle air conditioning
CN201480018367.4A CN105189158B (en) 2013-03-27 2014-03-18 Air conditioner for vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013067038A JP5954231B2 (en) 2013-03-27 2013-03-27 Air conditioner for vehicles
JP2013-067038 2013-03-27

Publications (1)

Publication Number Publication Date
WO2014156061A1 true WO2014156061A1 (en) 2014-10-02

Family

ID=51623077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/001560 WO2014156061A1 (en) 2013-03-27 2014-03-18 Vehicular air conditioner

Country Status (5)

Country Link
JP (1) JP5954231B2 (en)
CN (1) CN105189158B (en)
BR (1) BR112015024459B1 (en)
DE (1) DE112014001663T5 (en)
WO (1) WO2014156061A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6237328B2 (en) * 2014-02-26 2017-11-29 株式会社デンソー Air conditioner for vehicles
US20150345810A1 (en) * 2014-05-30 2015-12-03 Denso International America, Inc. Dual layer door
CN106696638A (en) * 2016-11-29 2017-05-24 湖州朗讯信息科技有限公司 Electric bus independent air outlet structure
JP7013983B2 (en) * 2018-03-20 2022-02-15 株式会社デンソー Air blower
CN109631274B (en) * 2018-12-29 2021-09-21 青岛海尔空调器有限总公司 Control method and device of air conditioner, storage medium and computer equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121311U (en) * 1981-01-23 1982-07-28
JP2005231511A (en) * 2004-02-19 2005-09-02 Denso Corp Air conditioner for vehicle
JP2008296596A (en) * 2007-05-29 2008-12-11 Valeo Thermal Systems Japan Corp Air conditioning unit, air conditioning door used for the same, and its constituent component
WO2009075255A1 (en) * 2007-12-10 2009-06-18 Calsonic Kansei Corporation Air conditioner for automobile
WO2012108146A1 (en) * 2011-02-09 2012-08-16 株式会社ヴァレオジャパン Multifunctional door for air conditioning and air conditioning device for vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168786A (en) * 1984-12-20 1986-06-25 Austin Rover Group An air distribution valve for an air heater
JP3735901B2 (en) * 1995-02-03 2006-01-18 株式会社デンソー Air passage switching device and vehicle air conditioner using the same
JP2006096092A (en) * 2004-09-28 2006-04-13 Denso Corp Air passage switchover device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121311U (en) * 1981-01-23 1982-07-28
JP2005231511A (en) * 2004-02-19 2005-09-02 Denso Corp Air conditioner for vehicle
JP2008296596A (en) * 2007-05-29 2008-12-11 Valeo Thermal Systems Japan Corp Air conditioning unit, air conditioning door used for the same, and its constituent component
WO2009075255A1 (en) * 2007-12-10 2009-06-18 Calsonic Kansei Corporation Air conditioner for automobile
WO2012108146A1 (en) * 2011-02-09 2012-08-16 株式会社ヴァレオジャパン Multifunctional door for air conditioning and air conditioning device for vehicle

Also Published As

Publication number Publication date
JP5954231B2 (en) 2016-07-20
DE112014001663T5 (en) 2016-01-21
JP2014189176A (en) 2014-10-06
CN105189158B (en) 2017-03-15
CN105189158A (en) 2015-12-23
BR112015024459A2 (en) 2017-07-18
BR112015024459B1 (en) 2022-05-03

Similar Documents

Publication Publication Date Title
US20160243922A1 (en) Air conditioner for vehicle
JP4830771B2 (en) Air conditioner for vehicles
JP4894447B2 (en) Air conditioner for vehicles
WO2014156061A1 (en) Vehicular air conditioner
JP6101065B2 (en) Air conditioner for vehicles
JP6632505B2 (en) Vehicle air conditioning unit
JP2007331416A (en) Vehicular air conditioning system
JP3894028B2 (en) Air conditioner for vehicles
JP5375721B2 (en) Air passage opening and closing device
JP6269432B2 (en) Air conditioner for vehicles
JP2016196209A (en) Vehicle air conditioning unit
JP2004338613A (en) Air conditioner for vehicle
JP4811384B2 (en) Air conditioner for vehicles
JP4985604B2 (en) Air conditioner for vehicles
JP4063096B2 (en) Air conditioner for vehicles
CN108778794A (en) Air conditioner for vehicles
JP4007158B2 (en) Air conditioner for vehicles
JP2009006896A (en) Vehicle air-conditioner
JP3900925B2 (en) Air conditioner for vehicles
JP2006056451A (en) Vehicular air-conditioning system
WO2018084259A1 (en) Air-conditioning unit for vehicular air-conditioning device, and method for manufacturing first air-conditioning unit and second air-conditioning unit
WO2018025532A1 (en) Vehicle air-conditioning device
JP4624773B2 (en) Air conditioner for vehicles
JP2008222024A (en) Vehicle air conditioner
JP4524939B2 (en) Air passage opening and closing device and vehicle air conditioner

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201480018367.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14773656

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 1120140016632

Country of ref document: DE

Ref document number: 112014001663

Country of ref document: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112015024459

Country of ref document: BR

122 Ep: pct application non-entry in european phase

Ref document number: 14773656

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 112015024459

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20150923