JP2016037080A - Air distribution unit of vehicular air conditioner - Google Patents

Air distribution unit of vehicular air conditioner Download PDF

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Publication number
JP2016037080A
JP2016037080A JP2014159812A JP2014159812A JP2016037080A JP 2016037080 A JP2016037080 A JP 2016037080A JP 2014159812 A JP2014159812 A JP 2014159812A JP 2014159812 A JP2014159812 A JP 2014159812A JP 2016037080 A JP2016037080 A JP 2016037080A
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Prior art keywords
air
outlet
passage
opening
differential
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Japanese (ja)
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池田　勝之
Katsuyuki Ikeda
勝之 池田
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Valeo Japan Co Ltd
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Valeo Japan Co Ltd
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Priority to JP2014159812A priority Critical patent/JP2016037080A/en
Priority to DE102015112759.8A priority patent/DE102015112759A1/en
Publication of JP2016037080A publication Critical patent/JP2016037080A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • 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
    • 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
    • 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
    • B60H2001/00078—Assembling, manufacturing or layout details
    • B60H2001/00092—Assembling, manufacturing or layout details of air deflecting or air directing means inside the device
    • 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
    • B60H2001/00185—Distribution of conditionned air
    • B60H2001/00192—Distribution of conditionned air to left and right part of passenger compartment
    • 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
    • B60H2001/00721—Air deflecting or air directing means

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

Abstract

PROBLEM TO BE SOLVED: To provide an air distribution unit of a vehicular air conditioner which can be developed in a short period of time and can equalize the amount of blow-out air blown from each blow-out grill in the left and right.SOLUTION: An air distribution unit 1A comprises: an air passage 20; an intake port 21 for circulating air to the air passage 20; a blow-out port 22 having a longitudinal opening substantially along a circulation direction of the air passage 20 to blow out the air that has flown through the air passage 20; blow-out port opening/closing means 23 for opening and closing the blow-out port 22; and rectifying surfaces 241, 242 which are provided in the blow-out port opening/closing means 23 to equalize the amount of the blow-out air in the left and right, and cross the longitudinal direction of the blow-out port 22.SELECTED DRAWING: Figure 1

Description

本発明は、車両における冷暖房およびフロントガラスなどの曇り止めを行うための車両用空調装置の配風ユニットに関するものである。   The present invention relates to an air distribution unit of an air conditioner for a vehicle for performing cooling and heating in a vehicle and anti-fogging of a windshield and the like.

車両用空調装置は、車外または車内の空気を送風機によって取り込んで、エバポレータで冷却して冷気とし、またヒータコアで加熱して暖気とし、これら冷気および暖気の通流量をミックスドアで規定して、混合通路（混合室）で混合して空調用空気とする。車両用空調装置の配風ユニットは、空調用空気を車内に吹出すことで乗員に快適な冷暖房を行い、またフロントガラス、サイドガラスなどの曇り止めを行う。   A vehicle air conditioner takes in air inside or outside a vehicle with a blower, cools it with an evaporator to cool it, and heats it with a heater core to make warm air. The flow rate of these cool air and warm air is regulated by a mix door and mixed. Air is mixed in the passage (mixing chamber). The air distribution unit of the vehicle air conditioner blows out air-conditioning air into the vehicle to comfortably cool and heat the occupant and to prevent fogging of windshields and side windows.

車両における空調は、冷房のために冷気空気をベント吹出グリルから乗員の頭部や上半身に向け吹出すベントモード、乗員の足元や下半身を温めるため、暖気をフット吹出グリルから車内の床方向に向け吹出すフットモード、およびフロントガラスやサイドガラスの曇り止めのため、暖気をデフ吹出グリルからフロントガラスに向け吹出すデフモードがある。さらに暖気をデフ吹出グリルおよびフット吹出グリルから吹出すデフ・フットモードや、常温よりも少し温度の高い空気をフット吹出グリルから吹出すとともにこれよりもやや温度の低い空気をベント吹出グリルから吹出すバイレベルモードがある。各空調モードの選択は、混合通路内の配風ドアを変位させることで行われる。   Air conditioning in the vehicle is a vent mode in which cool air is blown from the vent blow grill toward the head and upper body of the occupant for cooling, and warm air is directed from the foot blow grill toward the floor in the car to warm the occupant's feet and lower body. There is a foot mode that blows out, and a differential mode that blows warm air from the diff blowing grille toward the windshield in order to prevent the windshield and side windows from fogging. Furthermore, the def foot mode that blows warm air from the def blowout grill and the foot blow grill, and air that is slightly warmer than normal temperature are blown out from the foot blow grill and air that is slightly cooler than this is blown out from the vent blow grill. There is a bi-level mode. Selection of each air conditioning mode is performed by displacing the air distribution door in the mixing passage.

フロントガラスの曇り止めのため暖気を吹出すデフ吹出グリルは、フロントガラスの内面に広く暖気が供給されるように、フロントガラス下部近傍で、且つ車幅方向に延びる単数または複数の吹出グリルによって構成される。混合通路とデフ吹出グリルとの間には、混合通路内に開口したデフ吹出口と、それに連通したデフ吹出流路が介在している。ベント吹出グリルおよびフット吹出グリルも、デフ吹出グリルと同様に、混合通路と吹出グリルとの間に混合通路内に開口した吹出口と、それに連通した吹出流路が介在している。   The differential blowing grill that blows out warm air to prevent the windshield from fogging is composed of one or more blow grills that extend in the vehicle width direction near the lower part of the windshield so that warm air is widely supplied to the inner surface of the windshield. Is done. Between the mixing passage and the differential outlet grill, there are a differential outlet opening in the mixing passage and a differential outlet passage communicating therewith. Similarly to the differential blowout grill, the vent blowout grill and the foot blowout grill are provided with a blowout opening opened in the mixing passage between the mixing passage and the blowout grill, and a blowout flow passage communicating therewith.

ところで車両用空調装置は、車両の形状および車室スペース等から、送風機および混合通路等の配列、形状等が規定される。例えば送風機等を混合通路の車幅方向に（横に）配設して、送風機から混合通路に至る空気の通流を車幅方向（横方向）とすることもある。   By the way, in the vehicle air conditioner, the arrangement, shape, and the like of the blower and the mixing passage are defined from the shape of the vehicle and the passenger compartment space. For example, a blower or the like may be arranged in the vehicle width direction (laterally) of the mixing passage, and the flow of air from the blower to the mixing passage may be the vehicle width direction (lateral direction).

こうした車両用空調装置では、横方向に通流してきた冷気および暖気は、混合通路において通流方向が変えられて、各吹出口から吹出流路を経て各吹出グリルへと通流する。例えばデフ吹出グリルから吹出される空調用空気は、送風機から横方向に通流して混合通路に流入したのち、混合通路上部のデフ吹出口へと流入し、さらにデフ吹出流路を通流してデフ吹出グリルに至る（空調用空気は、混合通路の上方に配設されたデフ吹出グリルに向け通流方向が上方に変えられる。）。従ってデフ吹出口を通過する空調用空気は、デフ吹出口の一方側（例えば車両進行方向に向かって右側）で通流量が増加しやすくなる。その結果、フロントガラスの左右で曇り止めに差が生じ得る。ベント吹出グリルおよびフット吹出グリルについても、それぞれ吹出風量に左右の不均等が生じ得る。   In such a vehicle air conditioner, the flow direction of the cool air and the warm air flowing in the lateral direction is changed in the mixing passage, and flows from each outlet to each outlet grill through the outlet passage. For example, air-conditioning air blown from the differential blower grille flows laterally from the blower and flows into the mixing passage, and then flows into the differential blower outlet at the top of the mixing passage, and further flows through the differential blower flow passage to enter the differential passage. The air-conditioning air is changed to the upward direction toward the differential blowing grill disposed above the mixing passage. Therefore, the air-conditioning air passing through the differential outlet tends to increase in flow rate on one side of the differential outlet (for example, on the right side in the vehicle traveling direction). As a result, there may be a difference in anti-fogging between the left and right windshields. As for the vent blow grill and the foot blow grill, left and right non-uniformities may occur in the blow air volume.

こうした吹出風量の左右の不均等を解消するため、特許文献１は、図１６に示すように、配風ユニット１の下流の空気通路を複数の壁部（等配手段）２ａ、２ｂおよび２ｃで仕切って複数の空気通路２ｗ〜２ｚとし、各空気通路の並びを車両前後方向から車両左右方向へと変えることで、車両の左右方向に並べた各吹出口から均等に送風空気を吹き出せるとしている。しかし、空気通路を複数に分割することは困難性が高く開発期間が長期化するうえ、送風空気の方向を変更するためのスペースが必要で車両用空調装置の小型化も難しい。   In order to eliminate such left and right unevenness in the amount of blown air, Patent Document 1 discloses that an air passage downstream of the air distribution unit 1 is made up of a plurality of wall portions (equal distribution means) 2a, 2b and 2c as shown in FIG. By dividing the air passages into a plurality of air passages 2w to 2z and changing the arrangement of the air passages from the vehicle front-rear direction to the vehicle left-right direction, the blown air can be blown out evenly from the air outlets arranged in the left-right direction of the vehicle. . However, it is difficult to divide the air passage into a plurality of parts, and the development period is prolonged. In addition, a space for changing the direction of the blown air is required, and it is difficult to downsize the vehicle air conditioner.

そこで、同じく特許文献１では、他の例として、図１７に示すように、配風ユニット１からの車両左右方向の流れを車両前後方向へ変更する部分として、ケースの一部を、例えば段差２ｄおよび２ｅを有するように形成し、空気通路２を順次、狭める構成が知られている。これによれば、送風ユニット１から送られた送風空気の一部は段差２ｄや２ｅで通流方向がそれぞれ変えられて、車両の左右方向において均等となるよう吹き出すことができる。また、送風空気の方向の変更を、小さなスペースで行うこともできる。   Therefore, in Patent Document 1, as another example, as shown in FIG. 17, a part of the case, for example, a step 2 d, is used as a part for changing the flow in the vehicle left-right direction from the air distribution unit 1 in the vehicle front-rear direction. And 2e, and the air passage 2 is sequentially narrowed. According to this, a part of the blown air sent from the blower unit 1 can be blown out so that the flow direction is changed by the steps 2d and 2e, respectively, so that they are even in the left-right direction of the vehicle. Further, the direction of the blown air can be changed in a small space.

特開平０８−４８１２８号公報Japanese Patent Laid-Open No. 08-48128

しかしながら特許文献１が開示する技術では、ケースを複数の通路で仕切る、あるいは段差を設けるために、吹出風量の調整が大掛かりとなって、開発期間の長期化と開発コストの増加を招く。吹出風量を左右均等にするためには、実験の繰り返しによる検証が必要なため、評価用のケースを数多く製作しなければならない。さらに、吹出グリルや吹出口と吹出グリルとの間に介在する吹出流路のデザインが、車両のレイアウト変更に応じて変更されて通気抵抗が変更されることもあり、そのたびの数多くのケースを製作し、風量配分を確認する実験を行う必要が有る。   However, in the technology disclosed in Patent Document 1, since the case is partitioned by a plurality of passages or steps are provided, adjustment of the blown air volume becomes large, leading to a longer development period and an increase in development cost. In order to make the blown air flow equal to the left and right, verification through repeated experiments is necessary, so many cases for evaluation must be produced. In addition, the airflow resistance may be changed by changing the design of the blowout grille or the blowout flow path interposed between the blowout outlet and the blowout grille according to the layout change of the vehicle. It is necessary to make an experiment to confirm the air volume distribution.

そこで本発明は、送風機からの送風空気が車両の左右方向に送られる車両用空調装置において、短い期間で開発でき、各吹出グリルからの吹出風量を左右均等にすることができる配風ユニットの実現を課題とした。   Therefore, the present invention realizes an air distribution unit that can be developed in a short period of time and can evenly distribute the amount of air blown from each blow grill in a vehicle air conditioner in which blown air from the blower is sent in the left-right direction of the vehicle. Was an issue.

上記課題を解決するため、本発明に係る車両用空調装置の配風ユニット（請求項１）は、空気通路と、空気通路に空気を通流させるための取入口と、空気通路を通流した空気を吹出すために、空気通路の通流方向に略沿った長手方向の開口を有する吹出口と、吹出口を開閉するための吹出口開閉手段と、吹出口開閉手段に設けられ、吹出口の長手方向と交差する整流面を有する整流部とを備えている。   In order to solve the above problems, an air distribution unit for a vehicle air conditioner according to the present invention (Claim 1) has an air passage, an intake for allowing air to flow through the air passage, and an air passage. In order to blow out air, a blower outlet having a longitudinal opening substantially along the flow direction of the air passage, a blower outlet opening / closing means for opening and closing the blower outlet, and the blower outlet opening / closing means are provided. And a rectifying unit having a rectifying surface intersecting with the longitudinal direction.

上記構成を有する配風ユニットでは、取入口から空気通路へと流入した空気は、空気通路内をその通流方向に沿って通流し、吹出口開閉手段が開いているときには、さらに吹出口の下流へと通流する。ここで吹出口には、整流部が配設され、この整流部は吹出口の長手方向（略通流方向）と交差する整流面を有し、この整流面は、空気通路内を通流したのち吹出口から吹出す空気の流れを整流する。   In the air distribution unit having the above-described configuration, the air that has flowed into the air passage from the intake port flows along the flow direction in the air passage, and further when the air outlet opening / closing means is open, further downstream of the air outlet. Commute to. Here, the air outlet is provided with a rectifying portion, and this rectifying portion has a rectifying surface that intersects with the longitudinal direction (substantially flow direction) of the air outlet, and this rectifying surface flows through the air passage. Later, the flow of air blown out from the outlet is rectified.

こうして整流部の整流面は、吹出口の一の縁部（取入口に近い端部）側および吹出口の他の縁部（取入口から離れた端部）に流入する空気量を整えることができる。例えば整流面の形状を適切に設定することで、吹出口から吹き出す空気が、適切な分布量となるように整流することができる。   In this way, the rectifying surface of the rectifying unit can regulate the amount of air flowing into one edge (end near the intake) of the outlet and the other edge (end away from the inlet) of the outlet. it can. For example, by appropriately setting the shape of the rectifying surface, the air blown from the outlet can be rectified so as to have an appropriate distribution amount.

ここで請求項２に記載のように、該車両用空調装置の配風ユニットの吹出口開閉手段を、吹出口の長手方向に沿って延びる回動軸部と、回動軸部の軸線に沿ってこの回動軸部から延出するドア壁部とを有して吹出口を開閉する開閉ドアとすることができる。該吹出口開閉手段によれば、回動軸部の回動によってドア壁部が吹出口を開閉することができる。そして該吹出口開閉手段の整流面が、回動軸部またはドア壁部から回動軸部の軸線と交差する方向に延出していれば、ドア壁部が吹出口を開いたとき、回動軸部の軸線と交差する整流面は、空気通路内を通流したのち吹出口から吹出す空気の流れを効率良く整流することができる。   Here, as described in claim 2, the air outlet opening / closing means of the air distribution unit of the vehicle air conditioner is provided along a rotating shaft portion extending along the longitudinal direction of the air outlet and an axis of the rotating shaft portion. It can be set as the opening / closing door which has a door wall part extended from a rotating shaft part, and opens and closes a blower outlet. According to the air outlet opening / closing means, the door wall portion can open and close the air outlet by the rotation of the rotation shaft portion. If the rectifying surface of the air outlet opening / closing means extends from the rotating shaft or door wall in the direction intersecting the axis of the rotating shaft, the door wall rotates when the air outlet opens. The rectifying surface that intersects the axis of the shaft portion can efficiently rectify the flow of air that flows out of the outlet after flowing through the air passage.

また請求項３に記載のように、開閉ドアは、回動軸部から一方にドア壁部が延出する片持ち式開閉ドア（ドア壁部の一端側に回動軸部を有するドア）であってもよく、または回動軸部から異なる方向に２枚のドア壁部が延出するバタフライ式開閉ドア（ドア壁部の略中央に回動軸部を有するドア）であってもよい。   According to a third aspect of the present invention, the open / close door is a cantilevered open / close door (a door having a rotating shaft portion on one end side of the door wall portion) in which a door wall portion extends from the rotating shaft portion to one side. Alternatively, it may be a butterfly type opening / closing door (a door having a rotation shaft portion in the approximate center of the door wall portion) in which two door wall portions extend in different directions from the rotation shaft portion.

また請求項４に記載のように、整流面は、開閉ドアが吹出口を開口したときに、回動軸部よりも吹出口の上流側に位置づけられる上流側整流面、および回動軸部よりも吹出口の下流側に位置づけられる下流側整流面の何れか一方または双方を有するものであってもよい。上流側整流面を設けることで、空気通路内を通流する空気の流れ、すなわち、吹出口を通過する前の空気の流れを、効率良く吹出口へと変更することができる。下流側整流面を設けることで、吹出口を通過した後の空気の流れを所望する方向へ向けることができる。   According to a fourth aspect of the present invention, the rectifying surface includes an upstream rectifying surface positioned on the upstream side of the air outlet and the rotating shaft when the open / close door opens the air outlet. May also have either one or both of the downstream rectifying surfaces positioned on the downstream side of the outlet. By providing the upstream flow straightening surface, the flow of air flowing through the air passage, that is, the flow of air before passing through the blowout port can be efficiently changed to the blowout port. By providing the downstream side rectifying surface, the air flow after passing through the outlet can be directed in a desired direction.

また請求項５に記載のように、整流面は、上流側整流面を複数備えていてもよい。これら複数の上流側整流面は、少なくとも吹出口開閉手段が吹出口を開口したときに、取入口から離れるほど、空気通路内における上流側整流面の面積が広くなっていてもよい。そうすれば、吹出口の一の縁部側から吹出口の他の縁部側までの、吹出口の広い範囲において（開口の長手方向の広い範囲において）、吹出口への空気の流量の分布を容易に整えることができる。   Further, as described in claim 5, the rectifying surface may include a plurality of upstream rectifying surfaces. The plurality of upstream rectifying surfaces may have a larger area on the upstream rectifying surface in the air passage as the distance from the intake port increases when at least the outlet opening / closing means opens the outlet. Then, in the wide range of the blowout port (in the wide range in the longitudinal direction of the opening) from one edge side of the blowout port to the other edge side of the blowout port, the air flow rate distribution to the blowout port Can be easily arranged.

また複数の上流側整流面は、少なくとも吹出口開閉手段が吹出口を開口したときに、取入口から離れるほど、空気通路内における長さが長くなっていてもよい。そうすれば、吹出口の広い範囲において（開口の長手方向の広い範囲において）、吹出口への空気の流量の分布を容易に整えることができる。   Further, the plurality of upstream rectifying surfaces may have longer lengths in the air passage as they are separated from the intake port when at least the outlet opening / closing means opens the outlet. If it does so, in the wide range (in the wide range of the longitudinal direction of opening) of the blower outlet, distribution of the flow volume of the air to a blower outlet can be adjusted easily.

もちろん、複数の上流側整流面は、少なくとも吹出口開閉手段が吹出口を開口したときに、取入口から離れるほど、空気通路内における上流側整流面の面積が広くなり、且つ空気通路内における長さが長くなっていてもよい。   Of course, the plurality of upstream rectifying surfaces have a larger area on the upstream rectifying surface in the air passage and are longer in the air passage as the distance from the intake port at least when the outlet opening / closing means opens the outlet. May be longer.

また請求項６に記載のように、該車両用空調装置の配風ユニットでは、取入口を、冷却手段によって冷却された冷気を取入れる冷気取入口、および加熱手段によって加熱された暖気を取入れる暖気取入口を有したものとすることで、空気通路は、冷気と暖気とを混合して空調用空気とする混合通路として機能する。   According to a sixth aspect of the present invention, in the air distribution unit of the vehicle air conditioner, the intake port takes in the cold air taken in by the cooling means, and takes in the warm air heated by the heating means. By having the warm air intake, the air passage functions as a mixing passage that mixes the cool air and the warm air to obtain air conditioning air.

吹出口は、空気通路の通流方向に略沿った長手方向の開口を有し、且つ吹出口開閉手段で開閉されるデフ吹出口、ベント吹出口またはフット吹出口の何れであってもよい。すなわち該車両用空調装置の配風ユニットは、デフ吹出口、ベント吹出口またはフット吹出口の何れの吹出口においても、開口の長手方向の広い範囲において空気の流量を揃えることができる。   The air outlet may be any of a differential air outlet, a vent air outlet, or a foot air outlet that has a longitudinal opening substantially along the flow direction of the air passage and is opened and closed by the air outlet opening / closing means. That is, the air distribution unit of the vehicle air conditioner can make the air flow rate uniform over a wide range in the longitudinal direction of the opening at any of the differential outlet, the vent outlet, and the foot outlet.

上記構成を備える本発明に係る車両用空調装置の配風ユニットによれば、ケースの形状を変更することなく、吹出口開閉手段および整流部の構成を適宜設定するだけで、吹出口の長手方向の広い範囲において空気の流量を揃えることができる。言い換えれば、吹出口から吹出す空気の量を、所望する分布となるよう整流することができる。従って、短期間で各吹出グリルから左右均等に空気を吹出すことができる配風ユニットを開発することができ、もちろん開発コストの低減を実現することができる。   According to the air distribution unit of the vehicle air conditioner according to the present invention having the above-described configuration, the longitudinal direction of the air outlet can be simply set by appropriately configuring the air outlet opening / closing means and the rectifying unit without changing the shape of the case. The air flow rate can be made uniform over a wide range. In other words, the amount of air blown from the outlet can be rectified so as to have a desired distribution. Therefore, it is possible to develop an air distribution unit that can blow out air evenly from the respective blow grills in a short period of time, and of course, a reduction in development cost can be realized.

本発明に係る車両用空調装置の配風ユニットの一実施例における断面概略構成図である。It is a cross-sectional schematic block diagram in one Example of the air distribution unit of the vehicle air conditioner which concerns on this invention. 図１のＡ−Ａ断面であり、本発明に係る車両用空調装置の配風ユニットの空気通路、デフ吹出口、ベント吹出口およびフット吹出口の断面概略構成図である。It is an AA section of Drawing 1, and is a section schematic lineblock diagram of an air passage, a differential blower outlet, a vent blower outlet, and a foot blower outlet of an air distribution unit of an air-conditioner for vehicles concerning the present invention. 図１に示す配風ユニットが有する吹出開閉ドアおよび整流部の概略斜視構成図である。It is a schematic perspective block diagram of the blowing opening / closing door and rectification | straightening part which the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットのデフ吹出口近傍の断面概略構成図である。It is a cross-sectional schematic block diagram of the differential blower outlet vicinity of the air distribution unit shown in FIG. 図１に示す配風ユニットにおける吹出風量の左右の均等性を説明するための図である（同図（ａ）は整流部を有しない場合であり、同図（ｂ）は整流部を有する場合である。）。It is a figure for demonstrating the right-and-left equality of the blowing air volume in the air distribution unit shown in FIG. .) 図１に示す配風ユニットの吹出開閉ドアが有する整流部の一変形例（変形例１）の概略構成図である。It is a schematic block diagram of the modification (modification 1) of the rectification | straightening part which the blowing opening / closing door of the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットの吹出開閉ドアが有する整流部の他の変形例（変形例２）の概略構成図である。It is a schematic block diagram of the other modification (modification 2) of the rectification | straightening part which the blowing opening / closing door of the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットの吹出開閉ドアが有する整流部の他の変形例（変形例３）の概略構成図である。It is a schematic block diagram of the other modification (modification 3) of the rectification | straightening part which the blowing opening / closing door of the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットの吹出開閉ドアが有する整流部の他の変形例（変形例４）の概略構成図である。It is a schematic block diagram of the other modification (modification 4) of the rectification | straightening part which the blowing opening / closing door of the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットの吹出開閉ドアが有する整流部の他の変形例（変形例５）の概略構成図である。It is a schematic block diagram of the other modification (modification 5) of the rectification | straightening part which the blowing opening / closing door of the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットの吹出開閉ドアが有する整流部の他の変形例（変形例６）の概略構成図である。It is a schematic block diagram of the other modification (modification 6) of the rectification | straightening part which the blowing opening / closing door of the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットの吹出開閉ドアが有する整流部の他の変形例（変形例７）の概略構成図である。It is a schematic block diagram of the other modification (modification 7) of the rectification | straightening part which the blowing opening / closing door of the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットが有する吹出開閉ドアの一変形例（変形例１）の概略構成図である。It is a schematic block diagram of the modification (modification 1) of the blowing opening / closing door which the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットが有する吹出開閉ドアの他の変形例（変形例２）の概略構成図である。It is a schematic block diagram of the other modification (modification 2) of the blowing opening / closing door which the air distribution unit shown in FIG. 1 has. 図１に示す配風ユニットが有する吹出開閉ドアの他の変形例（変形例３）の概略構成図である。It is a schematic block diagram of the other modification (modification 3) of the blowing opening / closing door which the air distribution unit shown in FIG. 1 has. 吹出風量の左右の不均等を解消する従来の空気通路の一例における概略構成図である。It is a schematic block diagram in an example of the conventional air path which eliminates the nonuniformity of the right and left of the blowing air volume. 吹出風量の左右の不均等を解消する従来の空気通路の他の例における概略構成図である。It is a schematic block diagram in the other example of the conventional air path which eliminates the nonuniformity of the right-and-left airflow volume.

以下、図面を参照して、本発明に係る車両用空調装置の配風ユニットの一実施例について説明する。   Hereinafter, an embodiment of an air distribution unit of a vehicle air conditioner according to the present invention will be described with reference to the drawings.

＜配風ユニット概略構成＞
図１に示す車両用空調装置の配風ユニット１Ａは、側部に配設された車両用空調装置の冷気流路１１および暖気流路１２から冷気および暖気を取入れるものであり、その長手方向（図１の左右方向）が車両の幅の方向（車幅方向）となっている。配風ユニット１Ａが取り入れた空気は、車幅方向に通流したのち、略９０度通流方向を転換して外部に吹出される（例えばデフ吹出グリルから吹出される。）。 <Schematic configuration of air distribution unit>
The air distribution unit 1A of the vehicle air conditioner shown in FIG. 1 takes in cold air and warm air from the cold air flow path 11 and the warm air flow path 12 of the vehicle air conditioner disposed on the side, and its longitudinal direction. The left-right direction in FIG. 1 is the vehicle width direction (vehicle width direction). The air taken in by the air distribution unit 1A flows in the vehicle width direction, then changes the flow direction by approximately 90 degrees and is blown to the outside (for example, blown from the differential blow grill).

冷気流路１１は、上流側冷気流路１１１および下流側冷気流路１１２を有し、上流側冷気流路１１１の内部にはエバポレータ１１３が配設されている。従って、車両用空調装置のブロワ（図示せず）で上流側冷気流路１１１へと通流した空気は、エバポレータ１１３で冷却されたのち、下流側冷気流路１１２を通流して配風ユニット１Ａに取り入れられる。   The cold air flow path 11 includes an upstream cold air flow path 111 and a downstream cold air flow path 112, and an evaporator 113 is disposed inside the upstream cold air flow path 111. Accordingly, the air that has flowed to the upstream side cold air flow path 111 by the blower (not shown) of the vehicle air conditioner is cooled by the evaporator 113, and then flows through the downstream side cold air flow path 112 to flow the air distribution unit 1A. Incorporated.

暖気流路１２は、上流側冷気流路１１１の下流端と連通しており、内部にヒータコア１２１を備えている。従って、上流側冷気流路１１１から暖気流路１２へと通流した冷気は、ヒータコア１２１で加熱されたのち配風ユニット１Ａに取り入れられる。なお暖気流路１２は下流側冷気流路１１２の下方に配設されている。   The warm air flow path 12 communicates with the downstream end of the upstream cool air flow path 111 and includes a heater core 121 therein. Accordingly, the cold air flowing from the upstream cold air flow path 111 to the warm air flow path 12 is heated by the heater core 121 and then taken into the air distribution unit 1A. The warm air passage 12 is disposed below the downstream cold air passage 112.

上流側冷気流路１１１の下流端には、スライド式のミックスドア１３が配設されている。ミックスドア１３は、上流側冷気流路１１１から下流側冷気流路１１２への通流量および上流側冷気流路１１１から暖気流路１２への通流量を規定することで、上流側冷気流路１１１からの冷気を下流側冷気流路１１２または暖気流路１２へと通流させる。   A slide-type mix door 13 is disposed at the downstream end of the upstream cold air flow path 111. The mix door 13 regulates the flow rate from the upstream cold air flow channel 111 to the downstream cold air flow channel 112 and the flow rate from the upstream cold air flow channel 111 to the warm air flow channel 12, so that the upstream cold air flow channel 111. From the downstream cool air passage 112 or the warm air passage 12.

配風ユニット１Ａは、空気通路２０、空気通路２０に空気を取入れる取入口２１、空気通路２０から空気を吹出す吹出口２２、吹出口２２を開閉する吹出口開閉ドア２３、吹出口２２を通流する空気を整流する整流部２４、および少なくとも空気通路２０、取入口２１、吹出口２２を形成し、内部に吹出口開閉ドア２３および整流部２４を内蔵するケース２５を備えている。   The air distribution unit 1 </ b> A includes an air passage 20, an intake 21 for taking air into the air passage 20, an air outlet 22 that blows air from the air passage 20, an air outlet opening / closing door 23 that opens and closes the air outlet 22, and an air outlet 22. A rectifying unit 24 that rectifies air flowing therethrough, and at least an air passage 20, an intake port 21, and an air outlet 22 are formed, and a case 25 in which the air outlet opening / closing door 23 and the rectifying unit 24 are incorporated is provided.

ここで取入口２１は、空気通路２０の一端２０ａ側（図１中、左側）に配設され、下流側冷気流路１１２の下流端となる冷気取入口２１１および暖気流路１２の下流端となる暖気取入口２１２で構成されている（空気通路２０は冷気と暖気を混合する。）。なお配風ユニット１Ａでは、暖気取入口２１２は、下流側冷気流路１１２と暖気流路１２との位置関係から、冷気取入口２１１の下方に配設されている。   Here, the intake port 21 is disposed on the one end 20a side (left side in FIG. 1) of the air passage 20 and includes a cold air intake port 211 serving as a downstream end of the downstream cold air flow channel 112 and a downstream end of the warm air flow channel 12. (The air passage 20 mixes cold air and warm air). In the air distribution unit 1 </ b> A, the warm air intake 212 is disposed below the cold air intake 211 due to the positional relationship between the downstream cool air flow channel 112 and the warm air flow channel 12.

ところで、車両のレイアウトによっては、エンジンからのドライブシャフトを格納するために、左右方向の中央の床面が車両の前後方向に沿って盛り上がる場合がある。このような車両に配置される車両用空調装置では、この例の空気通路２０のように、車両中央部分に配置される部分の上下方向の寸法を十分に確保することが出来ない。また、エバポレータ１１３やヒータコア１２１も、比較的上下方向の寸法を確保することが出来る車両の右寄りあるいは左寄りに配設される。その結果、図１の配風ユニット１Ａのように、空気通路２０の底面が暖気流路１２の底面よりも上方に位置され、暖気取入口２１２が冷気取入口２１１の下方で、且つ、上方に向かって開口するよう配設される場合がある。   By the way, depending on the layout of the vehicle, in order to store the drive shaft from the engine, the center floor surface in the left-right direction may rise along the front-rear direction of the vehicle. In the vehicle air conditioner disposed in such a vehicle, the vertical dimension of the portion disposed in the vehicle central portion cannot be sufficiently ensured as in the air passage 20 of this example. Further, the evaporator 113 and the heater core 121 are also arranged on the right side or the left side of the vehicle that can ensure a relatively vertical dimension. As a result, as in the air distribution unit 1A of FIG. 1, the bottom surface of the air passage 20 is positioned above the bottom surface of the warm air flow path 12, and the warm air intake 212 is below and above the cold air intake 211. There is a case where it is arranged so as to open toward the front.

また図２に示すように、吹出口２２は、デフ吹出口２２１、ベント吹出口２２２およびフット吹出口２２３で構成されており、吹出口開閉ドア２３は、デフ吹出口開閉ドア２３１、ベント吹出口開閉ドア２３２およびフット吹出口開閉ドア２３３で構成されている。デフ吹出口２２１はデフ吹出流路３２１に連通しており、ベント吹出口２２２はベント吹出流路３２２に連通しており、フット吹出口２２３はフット吹出流路３２３に連通している。ここでデフ吹出口２２１は、空気通路２０の前方側（車両進行方向側、図２中、左側）に配設されており、ベント吹出口２２２およびフット吹出口２２３は車室側に配設されている。空気通路２０は、デフ吹出口２２１の車室側において広くなっている（なお図２は、デフ吹出流路３２１、ベント吹出流路３２２およびフット吹出流路３２３の上流端側のみを示す。）。   As shown in FIG. 2, the air outlet 22 includes a differential air outlet 221, a vent air outlet 222, and a foot air outlet 223. The air outlet opening / closing door 23 includes a differential air outlet opening / closing door 231, a vent air outlet. An opening / closing door 232 and a foot outlet opening / closing door 233 are included. The differential outlet 221 communicates with the differential outlet passage 321, the vent outlet 222 communicates with the vent outlet passage 322, and the foot outlet 223 communicates with the foot outlet passage 323. Here, the differential air outlet 221 is disposed on the front side of the air passage 20 (the vehicle traveling direction side, the left side in FIG. 2), and the vent air outlet 222 and the foot air outlet 223 are disposed on the vehicle compartment side. ing. The air passage 20 is wide on the passenger compartment side of the differential outlet 221 (note that FIG. 2 shows only the upstream end side of the differential outlet passage 321, the vent outlet passage 322, and the foot outlet passage 323). .

デフ吹出口２２１は、空気通路２０の長手方向に長辺を有する略長方形状の開口であり（図１）、車室側に位置する第１の長縁部２２１ａおよび前方側に位置する第２の長縁部２２１ｂを有し（図２）、また取入口２１側に位置する短手方向の第１の短縁部２２１ｃおよび取入口２１から離れた側に位置する第２の短縁部２２１ｄを有している（図１）。   The differential outlet 221 is a substantially rectangular opening having a long side in the longitudinal direction of the air passage 20 (FIG. 1), and includes a first long edge 221 a located on the vehicle compartment side and a second side located on the front side. The first short edge 221c in the short direction located on the intake 21 side and the second short edge 221d located on the side away from the intake 21 are provided (FIG. 2). (FIG. 1).

＜各吹出口概略構成＞
図２に示すように、デフ吹出口２２１は空気通路２０の上部前方に、ベント吹出口２２２は空気通路２０の車室側に、フット吹出口２２３は空気通路２０の車室側下部にそれぞれ配設されている。デフ吹出口２２１とベント吹出口２２２は、この例では、空気通路２０の長手方向（車幅方向）に長辺を有する略長方形状の開口であり、それらの吹出方向は空気通路２０通流方向と略直交する。従って取入口２１から取り入れられた空気は、空気通路２０を長手方向（幅方向）に通流したのち、略９０度通流方向を転換して、デフ吹出口２２１、あるいはベント吹出口２２２から吹出される。なお、フット吹出口２２３は、運転手の足元と助手席の足元のそれぞれへ吹き出すように構成されることが多く、空気通路２０の長手方向に長辺を備えない場合が多いが、車両のレイアウトに応じて、運転手用と助手席用のそれぞれの吹出口を連続して構成してもよい。 <Schematic configuration of each outlet>
As shown in FIG. 2, the differential outlet 221 is arranged in front of the upper portion of the air passage 20, the vent outlet 222 is arranged on the passenger compartment side of the air passage 20, and the foot outlet 223 is arranged on the lower portion of the air passage 20 on the passenger compartment side. It is installed. In this example, the differential outlet 221 and the vent outlet 222 are substantially rectangular openings having long sides in the longitudinal direction (vehicle width direction) of the air passage 20, and the outlet direction is the air passage 20 flow direction. And almost orthogonal. Therefore, the air taken in from the intake port 21 flows through the air passage 20 in the longitudinal direction (width direction), then changes the flow direction by approximately 90 degrees, and is blown out from the differential outlet 221 or the vent outlet 222. Is done. In many cases, the foot outlet 223 is configured to blow out to the driver's feet and the passenger's feet, and in many cases does not have a long side in the longitudinal direction of the air passage 20. Depending on the situation, the air outlets for the driver and the passenger seat may be configured continuously.

＜吹出口開閉ドア＞
図３に示すようにデフ吹出口２２１を開閉するデフ吹出口開閉ドア２３１は、デフ吹出口２２１の長手方向に配設される回動軸部２３１ｘ、回動軸部２３１ｘの一方側に延出する第１のドア壁部２３１ｙ、および回動軸部２３１ｘの他方側に延出する第２のドア壁部２３１ｚを有するバタフライ式開閉ドアである。材質は一定の強度を有するものであれば特に限定はなく、例えばポリプロピレン、ＡＢＳ樹脂、アクリル等で構成される。また製造方法も特に限定はしないが、射出成型により製造可能とすれば生産性が向上し、好適である。 <Air outlet opening / closing door>
As shown in FIG. 3, a differential outlet opening / closing door 231 that opens and closes the differential outlet 221 extends to one side of the rotary shaft portion 231 x and the rotary shaft portion 231 x disposed in the longitudinal direction of the differential outlet 221. This is a butterfly type opening / closing door having a first door wall portion 231y and a second door wall portion 231z extending to the other side of the rotating shaft portion 231x. The material is not particularly limited as long as it has a certain strength, and is made of, for example, polypropylene, ABS resin, acrylic, or the like. Also, the production method is not particularly limited, but if it can be produced by injection molding, the productivity is improved, which is preferable.

回動軸部２３１ｘは、デフ吹出口２２１の長手方向の略中央に配設され、デフ吹出口開閉ドア２３１がデフ吹出口２２１を閉じるときには、図４（ａ）に示すように第１のドア壁部２３１ｙの端部がデフ吹出口２２１の長手方向の第１の長縁部２２１ａと当接し、第２のドア壁部２３１ｚの端部がデフ吹出口２２１の長手方向の第２の長縁部２２１ｂと当接する。   The rotating shaft portion 231x is disposed at substantially the center in the longitudinal direction of the differential outlet 221. When the differential outlet 231 closes the differential outlet 221 as shown in FIG. The end portion of the wall portion 231y abuts on the first long edge portion 221a in the longitudinal direction of the differential outlet 221 and the end portion of the second door wall portion 231z is the second long edge in the longitudinal direction of the differential outlet port 221. It abuts on the portion 221b.

デフ吹出口２２１を開くときには、デフ吹出口開閉ドア２３１を図４（ａ）中、反時計まわりに回動させる。つまり第１のドア壁部２３１ｙをデフ吹出流路３２１側（デフ吹出口２２１の下流側）へと回動させ、第２のドア壁部２３１ｚを空気通路２０側（デフ吹出口２２１の上流側）へと回動させる。   When opening the differential outlet 221, the differential outlet opening / closing door 231 is rotated counterclockwise in FIG. That is, the first door wall portion 231y is rotated toward the differential outlet passage 321 side (downstream side of the differential outlet port 221), and the second door wall portion 231z is moved toward the air passage 20 side (upstream side of the differential outlet port 221). ).

ここでデフ吹出口開閉ドア２３１が最も開いたときとは、第１のドア壁部２３１ｙおよび第２のドア壁部２３１ｚによる、空気通路２０とデフ吹出流路３２１との間の流路抵抗が最少となったときといえる。   Here, when the differential outlet opening / closing door 231 is most open, the flow path resistance between the air passage 20 and the differential outlet flow path 321 by the first door wall portion 231y and the second door wall portion 231z is the same. It can be said that it became the minimum.

ベント吹出口開閉ドア２３２も、デフ吹出口開閉ドア２３１と同様に回動軸部、第１のドア壁部および第２のドア壁部を有してベント吹出口２２２を開閉することができ、またフット吹出口開閉ドア２３３も、デフ吹出口開閉ドア２３１と同様に回動軸部、第１のドア壁部および第２のドア壁部を有してフット吹出口２２３を開閉することができる。   The vent outlet opening / closing door 232 also has a rotating shaft portion, a first door wall portion, and a second door wall portion, like the differential outlet opening / closing door 231, and can open and close the vent outlet 222. Similarly to the differential outlet opening / closing door 231, the foot outlet opening / closing door 233 also has a rotating shaft portion, a first door wall portion, and a second door wall portion, and can open and close the foot outlet 223. .

＜整流部＞
配風ユニット１Ａは、デフ吹出グリルからの吹出風量を左右均等にするために、あるいは吹出風量を所望する分布とするために、デフ吹出口開閉ドア２３１の回動軸部２３１ｘと略直交する整流部２４を有している（図１、図３）。この整流部２４は回動軸部２３１ｘの長手方向の中間点よりも取入口２１側に配設されている。 <Rectification unit>
The air distribution unit 1A is a rectifier that is substantially orthogonal to the rotation shaft portion 231x of the differential outlet opening / closing door 231 in order to equalize the amount of air blown from the differential outlet grille to the left and right, or to obtain a desired distribution of the amount of outlet air. It has a portion 24 (FIGS. 1 and 3). This rectification | straightening part 24 is arrange | positioned rather than the intermediate point of the longitudinal direction of the rotating shaft part 231x at the intake 21 side.

整流部２４は、デフ吹出口開閉ドア２３１の表面（デフ吹出口２２１が閉じられたとき空気通路２０側（上流側）に位置づけられるデフ吹出口開閉ドア２３１の面）に配設された上流側整流面２４１、およびデフ吹出口開閉ドア２３１の裏面に配設された下流側整流面２４２を有している。図４に示すように、上流側整流面２４１および下流側整流面２４２は半円形状を有し、上流側整流面２４１の半径が下流側整流面２４２の半径より若干大きい。   The rectifying unit 24 is disposed upstream of the surface of the differential outlet opening / closing door 231 (the surface of the differential outlet opening / closing door 231 positioned on the air passage 20 side (upstream side) when the differential outlet 221 is closed). It has a flow regulating surface 241 and a downstream flow straightening surface 242 disposed on the back surface of the differential outlet opening / closing door 231. As shown in FIG. 4, the upstream rectifying surface 241 and the downstream rectifying surface 242 have a semicircular shape, and the radius of the upstream rectifying surface 241 is slightly larger than the radius of the downstream rectifying surface 242.

閉じていたデフ吹出口開閉ドア２３１（図４（ａ））を開くと、上流側整流面２４１は、空気通路２０側（上流側）からデフ吹出口２２１の第１の長縁部２２１ａ側を回動して、一部がデフ吹出流路３２１側（下流側）へと回動し、また下流側整流面２４２は、デフ吹出流路３２１側（下流側）からデフ吹出口２２１の第２の長縁部２２１ｂ側を回動して、一部が空気通路２０側（上流側）へと回動する（図４（ｂ））。   When the closed differential outlet opening / closing door 231 (FIG. 4A) is opened, the upstream side rectifying surface 241 moves from the air passage 20 side (upstream side) to the first long edge 221a side of the differential outlet 221. Rotating, a part of the rotatory surface 242 is rotated to the side of the def outlet channel 321 (downstream side), and the downstream rectifying surface 242 is connected to the second side of the def outlet port 221 from the def outlet channel 321 side (downstream side). The long edge part 221b side of this is rotated, and a part rotates to the air channel | path 20 side (upstream side) (FIG.4 (b)).

その結果、上流側整流面２４１および下流側整流面２４２は、空気通路２０側からデフ吹出流路３２１側にわたって位置づけられる。ここで上流側整流面２４１は、デフ吹出口開閉ドア２３１の第１のドア壁部２３１ｙおよび第２のドア壁部２３１ｚよりも空気通路２０の中央部側（図４中、右側）に位置づけられる。   As a result, the upstream rectifying surface 241 and the downstream rectifying surface 242 are positioned from the air passage 20 side to the differential outlet flow channel 321 side. Here, the upstream side rectifying surface 241 is positioned closer to the center side (right side in FIG. 4) of the air passage 20 than the first door wall portion 231y and the second door wall portion 231z of the differential outlet opening / closing door 231. .

なお、整流部２４も、一定の強度を有しデフ吹出開閉ドア２３１に固定されるものであれば、材料や製造方法には特に限定はしない。整流部２４の位置や形状の設定は、試験評価を行うことで適切に設定される。整流部２４は、試験評価のときは、回動軸部分２３１ｘ、第１のドア壁部２３１ｙ、第２のドア壁部２３１ｚの少なくともいずれかに固定されて、評価に用いられる。よって、整流部２４を任意の位置に配置し、容易に試験評価を行うことができる。一方、量産のとき、整流部２４は、デフ吹出開閉ドア２３１に固定されるよう構成されてもよいが、デフ吹出開閉ドア２３１とともに射出成型により形成されるものとすることで、生産性を向上出来る。   In addition, as long as the rectification | straightening part 24 has fixed intensity | strength and is fixed to the differential blowing opening / closing door 231, there will be no limitation in particular in a material and a manufacturing method. The position and shape of the rectifying unit 24 are appropriately set by performing test evaluation. The rectifying unit 24 is fixed to at least one of the rotating shaft portion 231x, the first door wall portion 231y, and the second door wall portion 231z and used for evaluation in the test evaluation. Therefore, it is possible to easily perform test evaluation by arranging the rectification unit 24 at an arbitrary position. On the other hand, the rectifying unit 24 may be configured to be fixed to the differential blowout opening / closing door 231 during mass production, but the productivity is improved by being formed by injection molding together with the differential blowout opening / closing door 231. I can do it.

＜配風ユニットにおける空気の通流＞
図５は、取入口２１から空気通路２０を経て吹出口２２へと通流する暖気の左右の均等性を説明するために、暖気の通流シミュレーション結果の一例を示したものであり、同図（ａ）は整流部２４を有しない場合、同図（ｂ）は整流部２４を有する場合を示す。 <Air flow in the air distribution unit>
FIG. 5 shows an example of a warm air flow simulation result in order to explain the right and left uniformity of the warm air flowing from the intake port 21 through the air passage 20 to the air outlet 22. FIG. 5A shows the case where the rectifying unit 24 is not provided, and FIG.

車両用空調装置をデフモードで運転して、フロントガラスの曇り止めを行う場合には、上流側冷気流路１１１と下流側冷気流路１１２との間をミックスドア１３で略閉じる一方、上流側冷気流路１１１と暖気流路１２との間を開放し、デフ吹出口開閉ドア２３１のみを開く。そうすると暖気取入口２１２から取り入れられた暖気は、空気通路２０の一端２０ａ側から他端２０ｂ側に向け通流する暖気流となって、デフ吹出口２２１へと向かう。暖気流は、通流方向を空気通路２０の長手方向から上方へと通流方向を転換しながらデフ吹出口２２１を通過しデフ吹出流路３２１へと吹出される。   When the vehicle air conditioner is operated in the differential mode to prevent the windshield from being fogged, the upstream side cool air flow path 111 and the downstream side cold air flow path 112 are substantially closed by the mix door 13 while the upstream side cool air flow is closed. The space between the air flow path 111 and the warm air flow path 12 is opened, and only the differential outlet opening / closing door 231 is opened. Then, the warm air taken in from the warm air inlet 212 becomes a warm airflow that flows from the one end 20 a side to the other end 20 b side of the air passage 20 and travels toward the differential outlet 221. The warm air flow passes through the differential outlet 221 while changing the direction of flow from the longitudinal direction of the air passage 20 upward, and is blown out to the differential outlet passage 321.

＜整流部２４を有しない場合＞
仮に配風ユニット１Ａが整流部２４を有しない場合（図５（ａ））には、暖気流Ｆ１ｈは、デフ吹出口２２１近傍を、その第１の短縁部２２１ｃ側から第２の短縁部２２１ｄ側に向け斜めに通過する。したがってデフ吹出口２２１を通過した暖気流Ｆ１ｈは、デフ吹出流路３２１の第１の側壁３２１ａ（デフ吹出口２２１の第１の短縁部２２１ｃ側の側壁）側から、デフ吹出流路３２１の第２の側壁３２１ｂ（デフ吹出口２２１の第２の短縁部２２１ｄ側の側壁）側に向いた速度成分を有して、デフ吹出流路３２１を通流し、デフ吹出流路３２１の第２の側壁３２１ｂ側において拡幅する（暖気流Ｆ１ｄ）。その結果、デフ吹出グリルから吹出される暖気の量は、デフ吹出グリルの一方側（デフ吹出流路３２１の第２の側壁３２１ｂ側）で多くなる（フロントガラスの左右で曇り止めに差が生じ得る。）。 <When the rectifying unit 24 is not provided>
If the air distribution unit 1A does not have the rectifying unit 24 (FIG. 5A), the warm air flow F1h is located near the differential outlet 221 from the first short edge 221c side to the second short edge. It passes obliquely toward the part 221d side. Accordingly, the warm air flow F1h that has passed through the differential outlet 221 passes from the side of the first side wall 321a of the differential outlet passage 321 (the side wall on the first short edge 221c side of the differential outlet 221) to the differential outlet passage 321. The second side wall 321b (the side wall on the second short edge portion 221d side of the differential outlet 221) has a speed component and flows through the differential outlet channel 321, and the second outlet of the differential outlet channel 321. The side wall 321b is widened (warm airflow F1d). As a result, the amount of warm air blown from the differential blowing grill increases on one side of the differential blowing grill (on the second side wall 321b side of the differential blowing flow path 321) (a difference occurs in fog prevention between the left and right sides of the windshield). obtain.).

＜整流部２４を有する場合＞
配風ユニット１Ａが整流部２４を有する場合（図５（ｂ））には、デフ吹出口２２１は、整流部２４（上流側整流面２４１および下流側整流面２４２）によって、第１の吹出し領域２２１ｅ（デフ吹出口２２１の第１の短縁部２２１ｃ側の吹出し領域）および第２の吹出し領域２２１ｆ（デフ吹出口２２１の第２の短縁部２２１ｄ側の吹出し領域）に分割される。 <When having the rectifying unit 24>
When the air distribution unit 1A has the rectifying unit 24 (FIG. 5B), the differential outlet 221 is connected to the first blowing region by the rectifying unit 24 (the upstream rectifying surface 241 and the downstream rectifying surface 242). It is divided into 221e (a blow area on the first short edge 221c side of the differential outlet 221) and a second blow area 221f (a blow area on the second short edge 221d side of the differential outlet 221).

ここで整流部２４の上流側整流面２４１は、デフ吹出口開閉ドア２３１の第１のドア壁部２３１ｙおよび第２のドア壁部２３１ｚよりも空気通路２０の中央部側に位置づけられており（図４（ｂ））、空気通路２０を通流する空気をデフ吹出口２２１へと効率よく整流する。   Here, the upstream flow straightening surface 241 of the flow straightening portion 24 is positioned closer to the center of the air passage 20 than the first door wall portion 231y and the second door wall portion 231z of the differential outlet opening / closing door 231 ( FIG. 4B) efficiently rectifies the air flowing through the air passage 20 to the differential outlet 221.

したがって、暖気取入口２１２からの暖気流Ｆ２ｈは、デフ吹出口２２１近傍に至ると、整流部２４によって、第１の吹出し領域２２１ｅに向かう暖気流Ｆ２１ｄと、第２の吹出し領域２２１ｆに向かう暖気流Ｆ２２ｄとに分流され且つ整流される（図５（ｂ））。しかも整流部２４は、デフ吹出口開閉ドア２３１の回動軸部２３１ｘと略直交しているから、暖気流Ｆ２１ｄおよび暖気流Ｆ２２ｄの通流方向をデフ吹出流路３２１の通流方向へと整流する。また、図４（ｂ）に示されるように、デフ吹出口２２１の第１の長縁部２２１ａ側と第１のドア壁部２３１ｙ、第２のドア壁部２３１ｚとの間を上流側整流面２４１によって整流された暖気流Ｆ２１ｈが流れ、デフ吹出口２２１の第２の長縁部２２１ｂ側と第１のドア壁部２３１ｙ、第２のドア壁部２３１ｚとの間を下流側整流面２４２によって整流された暖気流Ｆ２２ｈが流れる。   Therefore, when the warm air flow F2h from the warm air inlet 212 reaches the vicinity of the differential outlet 221, the warm air F21d toward the first blowing region 221e and the warm air flow toward the second blowing region 221f are performed by the rectifying unit 24. The current is diverted to F22d and rectified (FIG. 5B). Moreover, since the rectifying unit 24 is substantially orthogonal to the rotation shaft portion 231x of the differential outlet opening / closing door 231, the flow direction of the warm air flow F21d and the warm air flow F22d is rectified to the flow direction of the differential air flow path 321. To do. Further, as shown in FIG. 4 (b), the upstream straightening surface between the first long edge portion 221a side of the differential outlet 221 and the first door wall portion 231y and the second door wall portion 231z. The warm air flow F21h rectified by the flow 241 flows, and the downstream long rectifying surface 242 between the second long edge portion 221b side of the differential outlet 221 and the first door wall portion 231y and the second door wall portion 231z. The rectified warm air flow F22h flows.

こうして配風ユニット１Ａは、デフ吹出流路３２１の第１の側壁３２１ａ側から第２の側壁３２１ｂ側にいたる領域において、暖気流（暖気流Ｆ２１ｄおよびＦ２２ｄ）の流速および風量を揃えることができる。その結果、デフ吹出グリルから吹出される暖気の量（風量および流速）を均等化することができる（フロントガラスの曇り止めを左右均等に行うことができる。）。あるいは、所望する分布となるよう、暖気の量を整流することができる。   In this way, the air distribution unit 1A can make the flow velocity and the air volume of the warm airflow (warm airflows F21d and F22d) uniform in the region from the first side wall 321a side to the second side wall 321b side of the differential outlet flow path 321. As a result, it is possible to equalize the amount of warm air (air volume and flow velocity) blown out from the differential blow-out grill (the windshield can be evenly prevented from being left and right). Alternatively, the amount of warm air can be rectified to achieve the desired distribution.

＜風量の均等性のチューニング＞
配風ユニット１Ａでは、デフ吹出口２２１を通過する暖気流Ｆ２１ｄおよび暖気流Ｆ２２ｄの整流状態を、デフ吹出口開閉ドア２３１における整流部２４の形状や部位を設定することでチューニングすることができる。したがってケース２５の形状等を変更することなく、短い開発期間でデフ吹出グリルから吹出される暖気量の左右均等性を最適化することができる。以下、チューニングのための整流部２４の変形例について説明する。 <Tuning of air flow uniformity>
In the air distribution unit 1A, the rectification state of the warm air flow F21d and the warm air flow F22d passing through the differential air outlet 221 can be tuned by setting the shape and part of the rectifying unit 24 in the differential air outlet opening / closing door 231. Therefore, it is possible to optimize the right / left uniformity of the amount of warm air blown from the differential blow-out grill in a short development period without changing the shape of the case 25 or the like. Hereinafter, modifications of the rectifying unit 24 for tuning will be described.

＜整流部変形例１＞
図６（ａ）および（ｂ）に示す整流部２４Ａ（整流部の変形例１）は、上流側整流面２４１ａおよび下流側整流面２４２ａのいずれも同一半径の半円形状を有している。したがってデフ吹出口開閉ドア２３１が最も開いたときにおける整流部２４Ａは、整流部２４と比較すると、デフ吹出口２２１の第１の長縁部２２１ａ側を通流する暖気流Ｆ２１ｈが少なくなり、デフ吹出口２２１の第２の長縁部２２１ｂ側を通流する暖気流Ｆ２２ｈが多くなる。 <Rectification unit modification 1>
6A and 6B, the rectification unit 24A (the first modification of the rectification unit) has a semicircular shape with the same radius on both the upstream rectification surface 241a and the downstream rectification surface 242a. Therefore, compared with the rectifying unit 24, the rectifying unit 24A when the differential outlet opening / closing door 231 is opened most reduces the warm air flow F21h flowing through the first long edge portion 221a side of the differential outlet 221 and the differential unit 24A. The warm air flow F22h flowing through the second long edge 221b side of the air outlet 221 increases.

すなわち上流側整流面２４１ａおよび下流側整流面２４２ａの大きさを変更することで、デフ吹出口２２１の第１の長縁部２２１ａ側および第２の長縁部２２１ｂ側を通流する暖気流の流量をチューニングすることができる。例えば、空気通路２０の中央部側（図６の右側）の風速が相対的に早く、空気通路２０の車両前側（図６の左側）の風速が相対的に遅い場合に、上流側整流面２４１ａの半径を小さくして暖気流Ｆ２１ｈの増加を抑制し、下流側整流面２４２ａの半径を大きくして暖気流Ｆ２２ｈの減少を防止して、暖気流をバランス良くデフ吹出口２２１に流すことができる。   That is, by changing the sizes of the upstream rectifying surface 241a and the downstream rectifying surface 242a, the warm airflow flowing through the first long edge portion 221a side and the second long edge portion 221b side of the differential outlet 221 is reduced. The flow rate can be tuned. For example, when the wind speed on the center side (right side in FIG. 6) of the air passage 20 is relatively fast and the wind speed on the vehicle front side (left side in FIG. 6) of the air passage 20 is relatively slow, the upstream rectifying surface 241a. , The increase in the warm air flow F21h is suppressed, the radius of the downstream side rectifying surface 242a is increased to prevent the warm air flow F22h from decreasing, and the warm air flow can flow to the differential outlet 221 in a well-balanced manner. .

＜整流部変形例２＞
図７（ａ）および（ｂ）に示す整流部２４Ｂ（整流部の変形例２）は、整流部２４と同様に、上流側整流面２４１ｂおよび下流側整流面２４２ｂはいずれも半円形状を有しているが、上流側整流面２４１ｂの半径と下流側整流面２４２ｂの半径との差が、整流部２４よりも大きい。 <Rectification part modification 2>
In the rectifying unit 24B (rectification unit modification 2) shown in FIGS. 7A and 7B, the upstream rectifying surface 241b and the downstream rectifying surface 242b both have a semicircular shape, like the rectifying unit 24. However, the difference between the radius of the upstream rectifying surface 241 b and the radius of the downstream rectifying surface 242 b is larger than that of the rectifying unit 24.

したがって、空気通路２０の中央部側（図７の右側）の風速が相対的に遅く、空気通路２０の車両前側（図７の左側）の風速が相対的に早い場合に、上流側整流面２４２ａの半径を大きくして暖気流Ｆ２１ｈの減少を防止し、下流側整流面２４２ｂの半径を小さくして暖気流Ｆ２２ｈの増加を防止して、暖気流をバランス良くデフ吹出口２２１に流すことができる。   Accordingly, when the wind speed on the central portion side (right side in FIG. 7) of the air passage 20 is relatively slow and the wind speed on the vehicle front side (left side in FIG. 7) of the air passage 20 is relatively fast, the upstream rectifying surface 242a. The radius of the warm air flow F21h can be prevented from decreasing and the radius of the downstream rectifying surface 242b can be decreased to prevent the warm air flow F22h from increasing, so that the warm air can flow to the differential outlet 221 in a well-balanced manner. .

＜整流部変形例３＞
図８（ａ）および（ｂ）に示す整流部２４Ｃ（整流部の変形例３）では、上流側整流面２４１ｃは、半径の小さい第１の上流側整流面２４１ｃ１および半径の大きい第２の上流側整流面２４１ｃ２で形成されている。デフ吹出口開閉ドア２３１の回動範囲をθ度として、デフ吹出口開閉ドア２３１が閉じた状態において（図８（ａ））、第１の上流側整流面２４１ｃ１はデフ吹出口開閉ドア２３１の第１のドア壁部２３１ｙ側に略θ度で展開し、第２の上流側整流面２４１ｃ２はデフ吹出口２２１の第２のドア壁部２３１ｚ側に略（１８０−θ）度で展開している。 <Rectification part modification 3>
In the rectifying unit 24C (the rectifying unit modification 3) shown in FIGS. 8A and 8B, the upstream rectifying surface 241c includes a first upstream rectifying surface 241c1 having a small radius and a second upstream having a large radius. A side rectifying surface 241c2 is formed. When the rotation range of the differential outlet opening / closing door 231 is θ degrees and the differential outlet opening / closing door 231 is closed (FIG. 8A), the first upstream side rectifying surface 241 c 1 is connected to the differential outlet opening / closing door 231. The second upstream flow straightening surface 241c2 expands to the first door wall portion 231y side at approximately θ degrees, and the second upstream flow straightening surface 241c2 expands to the second door wall portion 231z side of the differential outlet 221 at approximately (180−θ) degrees. Yes.

下流側整流面２４２ｃも、半径の小さい第１の下流側整流面２４２ｃ１および半径の大きい第２の下流側整流面２４２ｃ２で形成されている。第１の下流側整流面２４２ｃ１はデフ吹出口開閉ドア２３１の第１のドア壁部２３１ｙ側に略（１８０−θ）度で展開しており、第２の下流流側整流面２４２ｃ２はデフ吹出口２２１の第２のドア壁部２３１ｚ側に略θ度で展開している。   The downstream rectifying surface 242c is also formed by a first downstream rectifying surface 242c1 having a small radius and a second downstream rectifying surface 242c2 having a large radius. The first downstream flow straightening surface 242c1 is developed at a substantially (180-θ) degree on the first door wall 231y side of the differential outlet opening / closing door 231, and the second downstream flow straightening surface 242c2 is a differential blower. The outlet 221 expands toward the second door wall 231z side at approximately θ degrees.

したがってデフ吹出口開閉ドア２３１が最も開いたときには（図８（ｂ））、半径の大きい第２の上流側整流面２４１ｃ２および第２の下流側整流面２４２ｃ２が上流側（空気通路２０内）に位置づけられ、上流側を通流する空気をデフ吹出流路３２１の通流方向へと効率よく整流することができる。その一方、半径の小さい第１の上流側整流面２４１ｃ１および第１の下流側整流面２４２ｃ１は、下流側（デフ吹出流路３２１内）に位置づけられる。   Therefore, when the differential outlet opening / closing door 231 is most opened (FIG. 8B), the second upstream rectifying surface 241c2 and the second downstream rectifying surface 242c2 having a large radius are located upstream (in the air passage 20). The air that is positioned and flows through the upstream side can be efficiently rectified in the flow direction of the differential blowing passage 321. On the other hand, the first upstream rectifying surface 241c1 and the first downstream rectifying surface 242c1 having a small radius are positioned on the downstream side (in the differential outlet flow path 321).

したがって、デフ吹出口２２１の第１の長縁部２２１ａ側を通流する暖気流Ｆ２１ｈおよびデフ吹出口２２１の第２の長縁部２２１ｂ側を通流する暖気流Ｆ２２ｈは、上流側（空気通路２０内）において、半径の大きい第２の上流側整流面２４１ｃ２および第２の下流側整流面２４２ｃ２で整流され、下流側（デフ吹出流路３２１内）において、半径の小さい第１の上流側整流面２４１ｃ１および２第２の下流側整流面２４２ｃ２で整流される。   Therefore, the warm air flow F21h flowing through the first long edge portion 221a side of the differential outlet 221 and the warm air flow F22h flowing through the second long edge portion 221b side of the differential outlet 221 are upstream (air passage). 20), the first upstream side rectification surface 241c2 and the second downstream side rectification surface 242c2 having a large radius are rectified, and the first upstream side rectification having a small radius is performed on the downstream side (in the differential outlet flow path 321). The surface 241c1 and the second second rectifying surface 242c2 are rectified.

＜整流部変形例４＞
図９（ａ）および（ｂ）に示す整流部２４Ｄ（整流部の変形例４）では、上流側整流面２４１ｄは、デフ吹出口開閉ドア２３１の回動範囲をθ度として、デフ吹出口開閉ドア２３１が閉じた状態において（図９（ａ））、デフ吹出口開閉ドア２３１の第２のドア壁部２３１ｚ側に略（１８０−θ）度で展開しており、残余の略θ度の領域には整流面が形成されていない。下流側整流面２４２ｄは、デフ吹出口開閉ドア２３１の第２のドア壁部２３１ｚ側に略θ度で展開しており、残余の略（１８０−θ）度の領域には整流面が形成されていない。 <Rectification part modification 4>
9A and 9B, in the rectifying unit 24D (rectifying unit modification 4), the upstream rectifying surface 241d is configured to open and close the differential outlet, with the rotation range of the differential outlet opening / closing door 231 being θ degrees. When the door 231 is closed (FIG. 9 (a)), the differential blower opening / closing door 231 is deployed on the second door wall portion 231z side at approximately (180-θ) degrees, and the remaining approximately θ degrees. A rectifying surface is not formed in the region. The downstream-side rectifying surface 242d is developed at approximately θ degrees on the second door wall portion 231z side of the differential outlet opening / closing door 231, and a rectifying surface is formed in the remaining approximately (180−θ) degree region. Not.

したがって吹出開閉ドア２３が最も開いたときには（図９（ｂ））、上流側整流面２４１ｄおよび下流側整流面２４２ｄが上流側（空気通路２０内）に位置づけられる一方、下流側（デフ吹出流路３２１内）には整流面が位置づけられない。   Therefore, when the blowout opening / closing door 23 is most opened (FIG. 9B), the upstream rectifying surface 241d and the downstream rectifying surface 242d are positioned on the upstream side (in the air passage 20), while the downstream side (the def outlet passage). In 321), the rectifying surface is not positioned.

したがって、デフ吹出口２２１の第１の長縁部２２１ａ側を通流する暖気流Ｆ２１ｈおよびデフ吹出口２２１の第２の長縁部２２１ｂ側を通流する暖気流Ｆ２２ｈは、上流側（空気通路２０内）において、上流側整流面２４１ｄおよび下流側整流面２４２ｄで整流される。   Therefore, the warm air flow F21h flowing through the first long edge portion 221a side of the differential outlet 221 and the warm air flow F22h flowing through the second long edge portion 221b side of the differential outlet 221 are upstream (air passage). 20), the flow is rectified by the upstream rectifying surface 241d and the downstream rectifying surface 242d.

＜整流部変形例５＞
図１０（ａ）および（ｂ）に示す整流部２４Ｅ（整流部の変形例５）では、上流側整流面２４１ｅは、扇型状の第１の上流側整流面２４１ｅ１および略長方形状の第２の上流側整流面２４１ｅ２で形成されている。 <Rectification part modification 5>
In the rectifying unit 24E shown in FIGS. 10A and 10B (variation 5 of the rectifying unit), the upstream rectifying surface 241e includes a fan-shaped first upstream rectifying surface 241e1 and a substantially rectangular second. The upstream rectifying surface 241e2 is formed.

デフ吹出口開閉ドア２３１が閉じた状態において（図１０（ａ））、第１の上流側整流面２４１ｅ１は、デフ吹出口開閉ドア２３１の第１のドア壁部２３１ｙ側で略９０度の範囲に展開しており、第２の上流側整流面２４１ｅ２は第２のドア壁部２３１ｚ側の残余の範囲に展開している。   In the state in which the differential outlet opening / closing door 231 is closed (FIG. 10A), the first upstream flow straightening surface 241e1 is in a range of approximately 90 degrees on the first door wall portion 231y side of the differential outlet opening / closing door 231. The second upstream side rectifying surface 241e2 is expanded in the remaining range on the second door wall portion 231z side.

第２の上流側整流面２４１ｅ２の短辺は、第１の上流側整流面２４１ｅ１の半径より長く、且つデフ吹出口開閉ドア２３１の回動軸部２３１ｘと略直交しており、第２の上流側整流面２４１ｅ２の長辺は、デフ吹出口開閉ドア２３１の第２のドア壁部２３１ｚの短手方向長さよりも長い。   The short side of the second upstream rectifying surface 241e2 is longer than the radius of the first upstream rectifying surface 241e1, and is substantially orthogonal to the rotation shaft portion 231x of the differential outlet opening / closing door 231. The long side of the side rectifying surface 241e2 is longer than the length of the second door wall portion 231z of the differential outlet opening / closing door 231 in the short direction.

下流側整流面２４２ｅは、第１の上流側整流面２４１ｅ１と同一半径の半円形状を有して、デフ吹出口開閉ドア２３１の第１のドア壁部２３１ｙと第２のドア壁部２３１ｚとの間に展開している。   The downstream rectifying surface 242e has a semicircular shape with the same radius as the first upstream rectifying surface 241e1, and includes a first door wall portion 231y and a second door wall portion 231z of the differential outlet opening / closing door 231. Deployed between.

したがってデフ吹出口開閉ドア２３１が最も開いたときには（図１０（ｂ））、第１の上流側整流面２４１ｅ１の一部、第２の上流側整流面２４１ｅ２の全部および下流側整流面２４２ｅの４分の１〜３分の１程度が上流側（空気通路２０内）に位置づけられ、特に第２の上流側整流面２４１ｅ２は空気通路２０の中央部寄りに位置づけられる。   Therefore, when the differential outlet opening / closing door 231 is most opened (FIG. 10B), a part of the first upstream rectifying surface 241e1, all of the second upstream rectifying surface 241e2, and 4 of the downstream rectifying surface 242e. About one-third to one-third is positioned on the upstream side (in the air passage 20), and in particular, the second upstream rectifying surface 241 e 2 is positioned closer to the center of the air passage 20.

したがって、上流側（空気通路２０内）を通流する空気は、第２の上流側整流面２４１ｅ２によって、広い範囲においてデフ吹出流路３２１の通流方向へと効率よく整流されて、デフ吹出口２２１の第１の長縁部２２１ａ側を通流する（暖気流Ｆ２１ｈ）。一方、デフ吹出口２２１の第２の長縁部２２１ｂ側を通流する暖気流Ｆ２２ｈは、下流側整流面２４２ｅの一部によって整流されて、デフ吹出口２２１の第２の長縁部２２１ｂ側を通流する。なお第２の上流側整流面２４１ｅ２の長辺を長くすれば、第２の上流側整流面２４１ｅ２の上流側から下流側整流面２４２ｅへ向けた暖気流Ｆ２３ｈが生じ得る。   Therefore, the air flowing through the upstream side (in the air passage 20) is efficiently rectified in the wide flow direction of the differential outlet flow path 321 by the second upstream side rectifying surface 241e2, and the differential outlet The first long edge portion 221a side of 221 flows (warm air flow F21h). On the other hand, the warm air flow F22h flowing through the second long edge portion 221b side of the differential outlet 221 is rectified by a part of the downstream side rectifying surface 242e, and is on the second long edge portion 221b side of the differential outlet 221. Flow through. In addition, if the long side of the 2nd upstream rectification | straightening surface 241e2 is lengthened, the warm air flow F23h toward the downstream rectification | straightening surface 242e from the upstream of the 2nd upstream rectification | straightening surface 241e2 may arise.

＜整流部変形例６＞
整流部２４とデフ吹出口開閉ドア２３１の回動軸部２３１ｘとは、略直交するものでもよいが（図１１（ａ））、吹出開閉ドア２３が最も開いたとき、空気通路２０内の取入口２１側において、回動軸部２３１ｘと整流部２４との成す角度が鋭角となるものであってもよい（図１１（ｂ））。そうすれば取入口２１からの空気を効率よく下流側（デフ吹出流路３２１内）へと通流させることができる。 <Rectification part modification 6>
The straightening part 24 and the rotation shaft part 231x of the differential outlet opening / closing door 231 may be substantially orthogonal (FIG. 11 (a)), but when the outlet opening / closing door 23 is most open, the air passage 20 is removed. On the inlet 21 side, the angle formed by the rotation shaft portion 231x and the rectifying portion 24 may be an acute angle (FIG. 11B). If it does so, the air from the inlet 21 can be efficiently flowed to the downstream side (inside the differential blowing flow path 321).

また吹出開閉ドア２３が最も開いたとき、上流側（空気通路２０内）における回動軸部２３１ｘと整流部２４との成す角度と、下流側（デフ吹出流路３２１内）における回動軸部２３１ｘと整流部２４との成す角度とが相違していてもよい。例えば図１１（ｃ）に示すように、上流側では取入口２１側が鋭角となっており、下流側が略直交していれば、空気通路２０から効率よく取り入れた空気の通流方向を、デフ吹出流路３２１の通流方向にそろえることができる。これら変形（図１１（ｂ）および（ｃ））は整流部変形例１〜５においても同様に適用できる。   Further, when the blowout opening / closing door 23 is opened most, the angle formed by the turning shaft portion 231x and the rectifying portion 24 on the upstream side (in the air passage 20), and the turning shaft portion on the downstream side (in the differential blowing passage 321). The angle formed by 231x and the rectifying unit 24 may be different. For example, as shown in FIG. 11 (c), if the intake 21 side has an acute angle on the upstream side and the downstream side is substantially orthogonal, the flow direction of the air efficiently taken in from the air passage 20 The flow direction of the flow path 321 can be aligned. These modifications (FIGS. 11B and 11C) can be similarly applied to the rectifying unit modifications 1 to 5.

＜整流部変形例７＞
図１２に示すように、整流部２４が複数の整流部２４ｉ１〜２４ｉ４を有し、デフ吹出口開閉ドア２３１が吹出口を開口したときに、整流部２４ｉ１〜２４ｉ４の上流側（空気通路２０内）に位置する領域が取入口２１側から離れるほど、空気通路２０内における面積が広くなるように形成されていてもよい。 <Rectification part modification 7>
As shown in FIG. 12, when the rectifying unit 24 has a plurality of rectifying units 24i1 to 24i4 and the differential outlet opening / closing door 231 opens the outlet, the upstream side of the rectifying units 24i1 to 24i4 (in the air passage 20) ) May be formed such that the area in the air passage 20 becomes wider as the area located at) is farther from the intake 21 side.

例えば整流部２４Ｅ（整流部の変形例５）において、略長方形状の第２の上流側整流面２４１ｅ２の長辺を取入口２１から離れるほど長くする。こうした整流部であれば、デフ吹出口２２１の長手方向の広い範囲において、上流側（空気通路２０内）を通流する空気を下流側（デフ吹出流路３２１内）へと均一に、または所望する風量の分布となるように通流させることができる。   For example, in the rectification unit 24E (the rectification unit modification 5), the longer side of the substantially rectangular second upstream rectification surface 241e2 is made longer as the distance from the inlet 21 increases. In such a rectifying unit, the air flowing through the upstream side (in the air passage 20) is uniformly distributed to the downstream side (in the differential outlet passage 321) or desired in a wide range in the longitudinal direction of the differential outlet 221. It can be made to flow so as to have a distribution of airflow.

もちろん整流部２４ｉ１〜２４ｉ４は、すべて回動軸部２３１ｘと略直交するものでもよいが、それぞれ回動軸部２３１ｘと異なる角度で交差するものであってもよい。   Of course, all of the rectification units 24i1 to 24i4 may be substantially orthogonal to the rotation shaft portion 231x, but may each intersect with the rotation shaft portion 231x at a different angle.

＜吹出口開閉ドア変形例１＞
上述した変形例はチューニングのための整流部２４の変形例だが、配風ユニット１Ａでは、その趣旨を逸脱することなく種々の変形が可能であり、例えばデフ吹出口２２１を開閉するデフ吹出口開閉ドア２３１はバタフライ式開閉ドアに限定されず、片持ち式開閉ドアとすることもできる。 <Blower outlet opening / closing door modification 1>
Although the above-described modification is a modification of the rectifying unit 24 for tuning, the air distribution unit 1A can be modified in various ways without departing from the spirit thereof, for example, opening / closing of the differential outlet 221 for opening / closing the differential outlet 221 The door 231 is not limited to the butterfly opening / closing door, and can be a cantilever opening / closing door.

図１３（ａ）および（ｂ）に示すように片持ち式開閉ドア２３１Ａ（デフ吹出口開閉ドア）は、回動軸部２３１ｘの一方側に、第１のドア壁部２３１ｙを有しており（デフ吹出口開閉ドア２３１における第２のドア壁部２３１ｚに相当する壁部を有しない）、回動軸部２３１ｘがデフ吹出口２２１の第２の長縁部２２１ｂ近傍に配設され、略θ１の範囲を回動してデフ吹出口２２１を開閉する。こうして片持ち式開閉ドア２３１Ａは、デフ吹出口２２１を開くことで、空気通路２０と下流側（デフ吹出流路３２１内）との間の効率よい通流を実現する。   As shown in FIGS. 13A and 13B, the cantilevered opening / closing door 231A (the differential outlet opening / closing door) has a first door wall portion 231y on one side of the rotating shaft portion 231x. (There is no wall portion corresponding to the second door wall portion 231z in the differential outlet port 231), the rotation shaft portion 231x is disposed in the vicinity of the second long edge portion 221b of the differential outlet port 221, and is approximately The range of θ1 is rotated to open and close the differential outlet 221. Thus, the cantilevered opening / closing door 231A opens the differential outlet 221 to realize efficient flow between the air passage 20 and the downstream side (in the differential outlet passage 321).

片持ち式開閉ドア２３１Ａが備える整流部２４Ｆは、第１のドア壁部２３１ｙからθ１よりも大きい角度で展開する扇形状の下流側壁部２４２ｆを有している。下流側壁部２４２ｆは、片持ち式開閉ドア２３１Ａが最大限開いたとき（図１３（ｂ））、上流側（空気通路２０内）に位置づけられる第１の下流側壁部２４２ｆ１、および下流側（デフ吹出流路３２１内）に位置づけられる第２の下流側壁部２４２ｆ２を有している。   The rectifying unit 24F included in the cantilever door 231A has a fan-shaped downstream side wall 242f that expands from the first door wall 231y at an angle larger than θ1. The downstream side wall portion 242f has a first downstream side wall portion 242f1 positioned on the upstream side (in the air passage 20) and the downstream side (the differential side) when the cantilevered opening / closing door 231A is fully opened (FIG. 13B). It has the 2nd downstream side wall part 242f2 located in the blowing flow path 321).

したがって片持ち式開閉ドア２３１Ａが最も開いたときにおける整流部２４Ｆは、上流側（空気通路２０内）を通流する空気を第１の下流側壁部２４２ｆ１が整流しつつ取入れ、さらに第２の下流側壁部２４２ｆ２が下流側（デフ吹出流路３２１内）へと整流する。このように、整流部２４Ｆを、第１のドア壁部２３１ｙよりも下流側に設けたので、片持ち式開閉ドア２３１Ａがデフ吹出口２２１を閉じているとき（図１３（ａ））、整流部２４Ｆは空気通路２０に位置しないので、空気通路２０内の空気の通流に対して抵抗とならない。   Accordingly, when the cantilevered opening / closing door 231A is most opened, the rectifying unit 24F takes in the air flowing through the upstream side (in the air passage 20) while the first downstream side wall 242f1 rectifies, and further the second downstream side. The side wall part 242f2 rectifies to the downstream side (in the differential outlet flow path 321). Thus, since the rectification | straightening part 24F was provided in the downstream rather than the 1st door wall part 231y, when the cantilevered opening-and-closing door 231A has closed the differential outlet 221 (FIG. 13 (a)), rectification | straightening Since the portion 24F is not located in the air passage 20, it does not resist the flow of air in the air passage 20.

＜吹出口開閉ドア変形例２＞
図１４（ａ）および（ｂ）に示すように片持ち式開閉ドア２３１Ａが備える整流部２４Ｇは、片持ち式開閉ドア２３１Ａが最大限開いたとき（図１４（ｂ））、上流側（空気通路２０内）に位置づけられる第１の下流側壁部２４２ｇ１のみを有している（下流側（デフ吹出流路３２１内）に位置づけられる下流側壁部を有しない。）。 <Modification 2 of the air outlet opening / closing door>
As shown in FIGS. 14 (a) and 14 (b), the rectifying unit 24G provided in the cantilevered opening / closing door 231A has an upstream side (air) when the cantilevered opening / closing door 231A is opened to the maximum extent (FIG. Only the first downstream side wall portion 242g1 positioned in the passage 20) is provided (there is no downstream side wall portion positioned on the downstream side (in the differential outlet flow path 321)).

したがって片持ち式開閉ドア２３１Ａが最も開いたときにおける整流部２４Ｇは、上流側（空気通路２０内）を通流する空気を第１の下流側壁部２４２ｇ１が整流しつつ取入れたのち、そのまま下流側（デフ吹出流路３２１内）へと通流させる。このように、整流部２４Ｇを、第１のドア壁部２３１ｙよりも下流側に設けても、片持ち式開閉ドア２３１Ａがデフ吹出口２２１を閉じているとき（図１４（ａ））、整流部２４Ｇが空気通路２０に位置しないので、空気通路２０内の空気の通流に対して抵抗とならない。   Therefore, the rectifying unit 24G when the cantilever door 231A is most opened takes the air flowing through the upstream side (in the air passage 20) while the first downstream side wall unit 242g1 rectifies and then directly downstream It is made to flow to (in the differential blowing flow path 321). As described above, even when the rectifying unit 24G is provided on the downstream side of the first door wall portion 231y, when the cantilever opening / closing door 231A closes the differential outlet 221 (FIG. 14 (a)), the rectification is performed. Since the portion 24G is not located in the air passage 20, it does not resist the flow of air in the air passage 20.

＜吹出口開閉ドア変形例３＞
図１５（ａ）および（ｂ）に示すように片持ち式開閉ドア２３１Ａが備える整流部２４Ｈは、片持ち式開閉ドア２３１Ａが最大限開いたとき（図１５（ｂ））、下流側（デフ吹出流路３２１内）に位置づけられる第２の下流側壁部２４２ｈ２のみを有している（上流側（空気通路２０内）に位置づけられる下流側壁部を有しない。）。 <Variation 3 of the outlet opening / closing door>
As shown in FIGS. 15A and 15B, the rectifying unit 24H provided in the cantilevered opening / closing door 231A is arranged on the downstream side (the differential) when the cantilevered opening / closing door 231A is fully opened (FIG. 15B). Only the second downstream side wall portion 242h2 positioned in the blowout flow path 321) is provided (there is no downstream side wall portion positioned on the upstream side (in the air passage 20)).

したがって片持ち式開閉ドア２３１Ａが最も開いたときにおける整流部２４Ｈは、上流側（空気通路２０内）を通流する空気を第１のドア壁部２３１ｙで取入れたのち、第２の下流側壁部２４２ｈ２が下流側（デフ吹出流路３２１内）へと整流する。このように、整流部２４Ｈを、第１のドア壁部２３１ｙよりも下流側に設けたので、片持ち式開閉ドア２３１Ａがデフ吹出口２２１を閉じているとき（図１５（ａ））、整流部２４Ｈが空気通路２０に位置しないので、空気の通流に対して抵抗とならない。更に、整流部２４Ｈを、第１のドア壁部２３１ｙから回転方向θ１を空けて下流側に設けたので、片持ち式開閉ドア２３１Ａがデフ吹出口２２１を開いているとき（図１５（ｂ））も整流部２４Ｈが空気通路２０に位置しないので、空気通路２０内の空気の通流に対して抵抗とならない。   Therefore, the rectifying unit 24H when the cantilevered opening / closing door 231A is most opened takes the air flowing through the upstream side (in the air passage 20) through the first door wall portion 231y, and then the second downstream side wall portion. 242h2 rectifies to the downstream side (in the differential outlet flow path 321). Thus, since the rectification | straightening part 24H was provided in the downstream rather than the 1st door wall part 231y, when the cantilevered opening-and-closing door 231A has closed the differential outlet 221 (FIG. 15 (a)), rectification | straightening Since the portion 24H is not located in the air passage 20, it does not become a resistance against the flow of air. Further, since the flow straightening portion 24H is provided downstream from the first door wall portion 231y in the rotational direction θ1, the cantilever opening / closing door 231A opens the differential outlet 221 (FIG. 15B). ) Also does not become a resistance to the flow of air in the air passage 20 because the rectifying unit 24H is not located in the air passage 20.

以上述べたとおり、片持ち式開閉ドア２３１Ａは、整流部２４Ｆ〜２４Ｈを選択することで上流側から下流側への空気の整流をチューニングできる。また整流部２４Ｆ〜２４Ｈの、それぞれの下流側壁部は、回動軸部２３１ｘと成す角度が略直交していてもよく、あるいは回動軸部２３１ｘに対し傾斜していてもよい。もちろん整流部２４Ｆ〜２４Ｈは下流側壁部を複数備えていてもよい。   As described above, the cantilevered opening / closing door 231A can tune the air rectification from the upstream side to the downstream side by selecting the rectification units 24F to 24H. In addition, the respective downstream side wall portions of the rectifying portions 24F to 24H may be substantially orthogonal to the rotation shaft portion 231x, or may be inclined with respect to the rotation shaft portion 231x. Of course, the rectification units 24F to 24H may include a plurality of downstream side wall portions.

以上、デフ吹出グリルから吹出される暖気量の左右均等性について説明したが、ベント吹出口開閉ドア２３２が整流部２４を有することで、ベント吹出流路３２２を通流する空気量（風量および流速）をチューニングして、ベント吹出グリルから吹出される空気量を左右均等に、あるいは所望する風量の分布を持つようにすることができる。またフット吹出口開閉ドア２３３が整流部２４を有することで、フット吹出流路３２３を通流する空気量（風量および流速）をチューニングして、フット吹出グリルから吹出される空気量を左右均等に、あるいは所望する風量の分布を持つようにすることができる。   Although the left and right uniformity of the amount of warm air blown from the differential blowing grill has been described above, the amount of air flowing through the vent blowing passage 322 (the air volume and the flow velocity) by the vent outlet opening / closing door 232 having the rectifying unit 24. ) Can be tuned so that the amount of air blown from the vent blow grill is equal to the left or right or has a desired air flow distribution. Further, since the foot outlet opening / closing door 233 has the rectifying unit 24, the amount of air (air volume and flow velocity) flowing through the foot outlet passage 323 is tuned, and the amount of air blown from the foot outlet grille is evenly distributed to the left and right. Alternatively, a desired air volume distribution can be provided.

もちろん本発明に係る車両用空調装置の配風ユニットは、上記実施例および変形例に限定されるものではなく、その趣旨を逸脱することなく適宜変形して実施することができる。   Of course, the air distribution unit of the vehicle air conditioner according to the present invention is not limited to the above-described embodiments and modifications, and can be appropriately modified without departing from the spirit thereof.

本発明に係る車両用空調装置の配風ユニットは、工業的に製造することができ、また商取引の対象とすることができるから、経済的価値を有して産業上利用することができる発明である。   Since the air distribution unit of the vehicle air conditioner according to the present invention can be manufactured industrially and can be used for commercial transactions, it can be used industrially with economic value. is there.

１Ａ 配風ユニット
１１３ 冷却手段（エバポレータ）
１２１ 加熱手段（ヒータコア）
２０ 空気通路（混合通路）
２１ 取入口
２１１ 冷気取入口
２１２ 暖気取入口
２２ 吹出口
２２１ デフ吹出口
２２２ ベント吹出口
２２３ フット吹出口
２３ 吹出口開閉手段（吹出口開閉ドア）
２３１ デフ吹出口開閉ドア（バタフライ式開閉ドア）
２３１Ａ デフ吹出口開閉ドア（片持ち式開閉ドア）
２３１ｘ 回動軸部
２３１ｙ デフ吹出口開閉ドアの第１のドア壁部
２３１ｚ デフ吹出口開閉ドアの第２のドア壁部
２４、２４Ａ〜２４Ｈ、 整流部
２４１、２４１ａ〜２４１ｅ 上流側整流面
２４２、２４２ａ〜２４２ｈ 下流側整流面 1A Air distribution unit 113 Cooling means (evaporator)
121 Heating means (heater core)
20 Air passage (mixing passage)
21 Inlet 211 Cold Inlet 212 Warm Inlet 22 Outlet 221 Differential Outlet 222 Vent Outlet 223 Foot Outlet 23 Outlet Opening / Closing Means (Outlet Opening Door)
231 Differential opening / closing door (butterfly opening / closing door)
231A differential outlet door (cantilevered door)
231x Rotating shaft portion 231y First door wall portion 231z of differential outlet opening / closing door Second door wall portion 24, 24A-24H of differential outlet opening / closing door, rectifying portions 241, 241a-241e upstream rectifying surface 242, 242a to 242h Downstream rectification surface

Claims (6)

空気通路と、
前記空気通路に空気を通流させるための取入口と、
前記空気通路を通流した前記空気を吹出すために、前記空気通路の通流方向に略沿った長手方向の開口を有する吹出口と、
前記吹出口を開閉するための吹出口開閉手段と、
前記吹出口開閉手段に設けられ、前記吹出口の長手方向と交差する整流面を有する整流部と
を備えたことを特徴とする車両用空調装置の配風ユニット。 An air passage,
An intake for passing air through the air passage;
In order to blow out the air that has flowed through the air passage, an air outlet having a longitudinal opening substantially along the flow direction of the air passage;
Outlet opening / closing means for opening and closing the outlet;
An air distribution unit for a vehicle air conditioner, comprising: a rectifying unit provided in the air outlet opening / closing means and having a rectifying surface intersecting with a longitudinal direction of the air outlet. 前記吹出口開閉手段は、吹出口の長手方向に沿って延びる回動軸部と、前記回動軸部の軸線に沿ってこの回動軸部から延出するドア壁部とを有して前記吹出口を開閉する開閉ドアであり、
前記整流面は、前記回動軸部または前記ドア壁部から前記回動軸部の軸線と交差する方向に延出することを特徴とする請求項１に記載の車両用空調装置の配風ユニット。 The air outlet opening / closing means has a rotating shaft portion extending along the longitudinal direction of the air outlet, and a door wall portion extending from the rotating shaft portion along the axis of the rotating shaft portion. An open / close door that opens and closes the air outlet,
2. The air distribution unit of the vehicle air conditioner according to claim 1, wherein the rectifying surface extends from the rotating shaft portion or the door wall portion in a direction intersecting with an axis of the rotating shaft portion. . 前記開閉ドアは、前記回動軸部から一方にドア壁部が延出する片持ち式開閉ドア、または前記回動軸部から異なる方向に２枚のドア壁部が延出するバタフライ式開閉ドアであることを特徴とする請求項２に記載の車両用空調装置の配風ユニット。   The open / close door is a cantilever type open / close door in which a door wall portion extends from the rotating shaft portion to one side, or a butterfly type open / close door in which two door wall portions extend from the rotating shaft portion in different directions. The air distribution unit of the vehicle air conditioner according to claim 2, wherein the air distribution unit is an air distribution unit. 前記整流面は、前記開閉ドアが前記吹出口を開口したときに、前記回動軸部よりも前記吹出口の上流側に位置づけられる上流側整流面、および前記回動軸部よりも前記吹出口の下流側に位置づけられる下流側整流面の何れか一方または双方を有することを特徴とする請求項２または３に記載の車両用空調装置の配風ユニット。   The rectifying surface includes an upstream rectifying surface positioned on the upstream side of the air outlet with respect to the rotating shaft when the opening / closing door opens the air outlet, and the air outlet with respect to the rotating shaft. 4. The air distribution unit for a vehicle air conditioner according to claim 2, further comprising any one or both of a downstream rectification surface positioned on the downstream side of the vehicle. 前記上流側整流面を複数備え、
これら複数の上流側整流面は、少なくとも吹出口開閉手段が前記吹出口を開口したときに、取入口から離れるほど、前記空気通路内における前記上流側整流面の面積が広くなることおよび／または前記空気通路内における長さが長くなることを特徴とする請求項４に記載の車両用空調装置の配風ユニット。 A plurality of the upstream rectifying surfaces are provided,
The plurality of upstream rectifying surfaces have a larger area of the upstream rectifying surface in the air passage and / or as the distance from the intake port increases when at least the outlet opening / closing means opens the outlet. 5. The air distribution unit for a vehicle air conditioner according to claim 4, wherein a length in the air passage is increased. 前記取入口は、冷却手段によって冷却された冷気を取入れる冷気取入口と、加熱手段によって加熱された暖気を取入れる暖気取入口とを有し、
前記空気通路は、前記冷気と前記暖気とを混合して空調用空気とする混合通路であり、
前記吹出口は、デフ吹出口、ベント吹出口、またはフット吹出口の何れかであることを特徴とする請求項１ないし５の何れかに記載の車両用空調装置の配風ユニット。 The intake port has a cold air intake port for taking in the cold air cooled by the cooling means, and a warm air intake port for taking in the warm air heated by the heating means,
The air passage is a mixing passage that mixes the cold air and the warm air into air-conditioning air,
The air distribution unit of a vehicle air conditioner according to any one of claims 1 to 5, wherein the air outlet is any one of a differential air outlet, a vent air outlet, and a foot air outlet.
JP2014159812A 2014-08-05 2014-08-05 Air distribution unit of vehicular air conditioner Pending JP2016037080A (en)

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JPS5551617A (en) * 1978-10-13 1980-04-15 Jidosha Denki Kogyo Co Ltd Air conditioner for vehicle
JPS57202312U (en) * 1981-06-19 1982-12-23
US4947735A (en) * 1988-05-27 1990-08-14 Valeo Distribution box for a heating and/or air conditioning apparatus, especially for an automotive vehicle
JPH0221112U (en) * 1988-07-29 1990-02-13
JPH0438815U (en) * 1990-07-31 1992-04-02
JPH08188037A (en) * 1995-01-10 1996-07-23 Hitachi Constr Mach Co Ltd Air blowdown port structure of cab air-conditioning system
JPH11157322A (en) * 1997-09-25 1999-06-15 Denso Corp Air-conditioner device for automobile
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JP2009083853A (en) * 2009-01-26 2009-04-23 Mitsubishi Heavy Ind Ltd Vehicular air conditioner

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