JP2010120442A

JP2010120442A - Air conditioner

Info

Publication number: JP2010120442A
Application number: JP2008293980A
Authority: JP
Inventors: Toru Fujimoto; 徹藤本
Original assignee: Calsonic Kansei Corp
Current assignee: Marelli Corp
Priority date: 2008-11-18
Filing date: 2008-11-18
Publication date: 2010-06-03

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of enhancing the temperature controlling performance by precluding inclusion of the wind fed through a gap, in the air conditioner having a structure in which a rotary shaft of a wind distributing door penetrates a shaft inserting hole formed in a partitioning wall to form the gap between the outer periphery of the rotary shaft and the inner periphery of the shaft inserting hole. <P>SOLUTION: The air conditioner is configured so that a wind duct 13 is furnished with a first passage 131 and a second passage 132 partitioned by the partitioning wall 40, the rotary shaft 220 of a side differential door 22 is inserted through the shaft inserting hole 45 formed in the partitioning wall 40, the gap 45a to allow circulation of air is formed between the outer periphery of the rotary shaft 220 and the inner periphery of the shaft inserting hole 45, and a first valve element 251 and a second valve element 252 are installed at the outer periphery of the rotary shaft 220 in the first passage 131 and the second passage 132 in the neighborhood of the shaft inserting hole 45, to be movable between the position to block the gap 45a and the position to open the gap 45a on the basis of the pressure difference between the first passage 131 and the second passage 132. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、空調装置に関し、特に、第１流路と第２流路とで独立して送風の温度調節を行うことができるものに関する。 The present invention relates to an air conditioner, and in particular, to a device capable of adjusting the temperature of air blow independently in a first flow path and a second flow path.

従来、車両用の空調装置において、運転席側と助手席側と、あるいは前席側と後席側とのように、２箇所で独立して送風の温度を調節可能なものが、例えば、特許文献１や特許文献２などにより知られている。
このような空調装置では、ユニットハウジング内の送風路が、区画壁により第１流路と第２流路とに区画されており、例えば、第１流路の送風が、運転席側に導かれ、第２流路の送風が助手席側に導かれるようにダクトが接続されている。 2. Description of the Related Art Conventionally, in an air conditioner for a vehicle, one that can adjust the temperature of air blow independently at two locations, such as a driver seat side and a passenger seat side, or a front seat side and a rear seat side, is disclosed in, for example, a patent. It is known from Document 1 and Patent Document 2.
In such an air conditioner, the air passage in the unit housing is partitioned into a first flow path and a second flow path by a partition wall. For example, the air flow in the first flow path is guided to the driver's seat side. The duct is connected so that the air flow in the second flow path is guided to the passenger seat side.

また、特許文献１に記載の従来技術では、温度調節を行うドアや、吹出モードを切り換えるドアが、第１流路と第２流路とに独立して設けられている。そして、各ドアは、それぞれ、異なるアクチュエータにより独立して回動される。 Moreover, in the prior art described in Patent Document 1, a door for adjusting the temperature and a door for switching the blowing mode are provided independently in the first flow path and the second flow path. Each door is independently rotated by a different actuator.

一方、特許文献２に記載の従来技術では、第１流路と第２流路とに跨って配風モードを切り換えるモードドアが、区画壁に形成された隙間を貫通して、区画壁に交差して設けられている。
さらに、隙間には、第１流路の送風と第２流路の送風とが、隙間を介して混入するのを防止するべく、送風の下流側に徐々に厚さが厚くなるラッパ状の断面形状のラッパ状部が設けられている。
特開２００２−１２７７３０号公報特開２００６−６９２６４号公報 On the other hand, in the prior art described in Patent Document 2, the mode door that switches the air distribution mode across the first flow path and the second flow path passes through the gap formed in the partition wall and intersects the partition wall. Is provided.
Furthermore, in the gap, a trumpet-shaped cross section that gradually increases in thickness toward the downstream side of the air flow so as to prevent the air flow of the first flow path and the air flow of the second flow path from being mixed through the gap. A trumpet shaped part is provided.
JP 2002-127730 A JP 2006-69264 A

しかしながら、特許文献１に記載の技術では、温度調節や吹出モードの切換を行うドアおよびアクチュエータが、第１流路と第２流路とのそれぞれに設けられているため、部品点数が多くなり、コスト増、重量増、取付手間増を招く、 However, in the technique described in Patent Document 1, since the door and the actuator that perform temperature adjustment and switching of the blowing mode are provided in each of the first flow path and the second flow path, the number of parts increases. Increases cost, weight, and installation time

一方、特許文献２に記載の技術では、１つの配風ドアを、区画壁を貫通して設け、１個のアクチュエータで駆動可能としているため、第１流路と第２流路とに、それぞれ配風ドアを設け、それぞれ、ことなるアクチュエータで駆動するものと比較して、部品点数を削減することができる。
また、第１流路の送風と、第２流路の送風との混入を防止し、各流路の温度の独立制御性能を向上できる。 On the other hand, in the technique described in Patent Document 2, since one air distribution door is provided through the partition wall and can be driven by one actuator, the first flow path and the second flow path are respectively provided. The number of parts can be reduced as compared with those provided with air distribution doors and driven by different actuators.
Moreover, mixing with the ventilation of a 1st flow path and the ventilation of a 2nd flow path can be prevented, and the independent control performance of the temperature of each flow path can be improved.

しかしながら、上述の従来技術では、ラッパ状部により、送風路の送風が、隙間を介して他方の流路に流れないような流れは形成することができるものの、隙間が、常時開口されている。
そして、このような空調装置では、第１流路と第２流路とに温度差を与えた場合、両流路に圧力差が生じるため、この圧力差により、第１流路と第２流路との間で、隙間を介した送風が生じ、両流路間の送風の混入を無くすことはできない。
そして、このような送風の混入が生じると、第１流路と第２流路との送風温度が制御目標と異なり、温度制御性能の低下を招く。 However, in the above-described conventional technology, the trumpet-shaped portion can always form a flow that prevents the air in the air passage from flowing through the gap to the other flow path, but the gap is always open.
In such an air conditioner, when a temperature difference is given between the first flow path and the second flow path, a pressure difference is generated between both flow paths. Blowing occurs through the gap between the passages, and it is impossible to eliminate the mixing of the blowing between the two flow paths.
And when such ventilation mixes, the ventilation temperature of a 1st flow path and a 2nd flow path differs from a control target, and causes the fall of temperature control performance.

ちなみに、圧力差が生じる理由は、下記の通りである。
すなわち、送風の温度を調節する場合、冷却器を通過した後の送風の、加熱器へ回る流量を調節するようになっている。具体的には、送風温度を低くする場合には、加熱器への流量を少なく抑え、送風温度を高くする場合には、加熱器への流量を増加させる。
このように、第１流路と第２流路とで、加熱器を通過させる送風量が異なった場合、各流路の送風に対する抵抗が異なり、この送風抵抗の違いにより圧力差が生じる。 Incidentally, the reason why the pressure difference occurs is as follows.
In other words, when adjusting the temperature of the blast, the flow rate of the blast after passing through the cooler to the heater is adjusted. Specifically, when the air temperature is lowered, the flow rate to the heater is reduced, and when the air temperature is increased, the flow rate to the heater is increased.
As described above, when the amount of air flow passing through the heater is different between the first flow path and the second flow path, the resistance to the air flow of each flow path is different, and a pressure difference is generated due to the difference in the air flow resistance.

本発明は、上述のような従来の問題に着目して成されたもので、配風ドアの回動軸が、区画壁の軸挿通穴を貫通して、回動軸外周と挿通穴内周との間に隙間を有した構造の空調装置において、隙間を介した送風の混入を防止して、温度制御性能の向上を図ることが可能な空調装置を提供することを目的とする。 The present invention has been made by paying attention to the conventional problems as described above, and the rotation shaft of the air distribution door passes through the shaft insertion hole of the partition wall, and the rotation shaft outer periphery and the insertion hole inner periphery. It is an object of the present invention to provide an air conditioner capable of improving temperature control performance by preventing air from entering through the gap.

上述の目的を達成するために請求項１に記載の発明は、空気導入口から車室に繋がる吹出口に至る送風が形成される送風路を有したユニットハウジングと、前記送風路において、区画壁に区画された第１流路と第２流路と、前記第１流路および第２流路に、それぞれ、送風方向を変更可能に設けられた配風ドアと、を備え、前記第１流路と前記第２流路とで、独立して温度調節可能に形成された空調装置であって、前記配風ドアが、前記ユニットハウジングに回動可能に支持された回動軸と、この回動軸に結合され、前記第１流路および第２流路に配置された第１ドア板および第２ドア板と、を備え、前記区画壁に、前記回動軸を貫通させる軸挿通穴が開口され、前記回動軸の外周と、前記軸挿通穴の内周との間に、空気の流通が可能な隙間が形成され、前記軸挿通穴の近傍の前記第１流路と第２流路とのそれぞれに、前記第１流路と第２流路との圧力差に基づいて、前記隙間を塞ぐ位置と前記隙間を開いた位置とに移動可能に第１弁体および第２弁体が設けられていることを特徴とする空調装置とした。 In order to achieve the above-mentioned object, the invention according to claim 1 includes a unit housing having an air passage in which air is sent from an air introduction port to an air outlet connected to the vehicle compartment, and a partition wall in the air passage. The first flow path and the second flow path divided into the first flow path and the air distribution door provided in the first flow path and the second flow path so that the blowing direction can be changed. An air conditioner that is independently adjustable in temperature between the passage and the second flow path, wherein the air distribution door is rotatably supported by the unit housing; A first door plate and a second door plate that are coupled to the dynamic shaft and disposed in the first flow path and the second flow path, and a shaft insertion hole that penetrates the rotation shaft is formed in the partition wall. A gap that is open and allows air to flow between the outer periphery of the pivot shaft and the inner periphery of the shaft insertion hole. A position where the gap is formed in each of the first flow path and the second flow path in the vicinity of the shaft insertion hole based on a pressure difference between the first flow path and the second flow path; and The air conditioner is characterized in that the first valve body and the second valve body are provided so as to be movable to a position where the gap is opened.

また、請求項２に記載の発明は、請求項１に記載の空調装置において、前記第１弁体および第２弁体が、前記回動軸に一体に設けられ、前記回動軸が、軸方向へ移動可能に前記ユニットハウジングに支持されていることを特徴とする空調装置とした。
また、請求項３に記載の発明は、請求項１または請求項２に記載の空調装置において、前記区画壁は、前記軸挿通穴の部分を境に、第１の隔壁部材と第２の隔壁部材とに分割されていることを特徴とする空調装置とした。 According to a second aspect of the present invention, in the air conditioner according to the first aspect, the first valve body and the second valve body are provided integrally with the rotation shaft, and the rotation shaft is a shaft. The air conditioner is supported by the unit housing so as to be movable in the direction.
The invention according to claim 3 is the air conditioner according to claim 1 or 2, wherein the partition wall has a first partition member and a second partition with the shaft insertion hole as a boundary. It was set as the air conditioner characterized by being divided | segmented into the member.

請求項１に記載の空調装置では、第１流路と第２流路とで圧力差が生じた場合、第１弁体と第２弁体との少なくとも一方が、圧力差により移動して隙間を塞ぐ。
したがって、第１流路と第２流路とで、隙間を介して、高圧側から低圧側への送風が生じるのを防止して、両流路の送風の混入を防止できる。
よって、第１流路と第２流路との温度差を保つことができ、温度制御性能の向上を図ることができる。
また、区画壁の挿通穴の内周と、これを貫通する回動軸の外周との間に、隙間が確保されることで、回動軸の回動時の摺動抵抗を抑えることができるとともに、組付誤差や回動軸の変形を隙間で吸収し、回動軸と挿通穴との干渉が生じるのを抑制できる。 In the air conditioner according to claim 1, when a pressure difference occurs between the first flow path and the second flow path, at least one of the first valve body and the second valve body moves due to the pressure difference, and the gap Block.
Therefore, it is possible to prevent the first flow path and the second flow path from blowing air from the high pressure side to the low pressure side through the gap, thereby preventing the air flow from both flow paths from being mixed.
Therefore, the temperature difference between the first channel and the second channel can be maintained, and the temperature control performance can be improved.
Moreover, the sliding resistance at the time of rotation of a rotating shaft can be suppressed by ensuring a clearance gap between the inner periphery of the insertion hole of a partition wall, and the outer periphery of the rotating shaft which penetrates this. At the same time, the assembly error and the deformation of the rotating shaft are absorbed by the gap, and the interference between the rotating shaft and the insertion hole can be suppressed.

請求項２に記載の発明では、第１弁体と第２弁体とを、回動軸に一体に設けたため、回動軸と別体としたものと比較して、部品点数を少なくして、製造コスト低減、組付手間の削減、重量軽減を図ることが可能となる。 In the invention according to claim 2, since the first valve body and the second valve body are integrally provided on the rotating shaft, the number of parts is reduced compared to the case where the first and the second valve bodies are separated from the rotating shaft. It is possible to reduce the manufacturing cost, the assembly work, and the weight.

請求項３に記載の発明では、第１の隔壁部材と第２の隔壁部材との一方をユニットハウジングに立設し、軸挿通穴が開放された状態で、回動軸をユニットハウジングに取り付け、その後、第１の隔壁部材と第２の隔壁部材とのもう一方をユニットハウジングに立設し、軸挿通穴が周状に囲まれた状態とする。この時点で、軸挿通穴に回動軸が貫通された状態となる。
したがって、回動軸に一体に両弁体が組み付けられていても、軸挿通穴を挟んで、両通路に両弁体を配置させることが可能であり、組付作業性に優れる。 In the invention according to claim 3, one of the first partition member and the second partition member is erected on the unit housing, and the rotation shaft is attached to the unit housing with the shaft insertion hole opened. Thereafter, the other one of the first partition member and the second partition member is erected on the unit housing so that the shaft insertion hole is surrounded by a circumferential shape. At this point, the rotation shaft is passed through the shaft insertion hole.
Therefore, even if both valve bodies are assembled integrally with the rotating shaft, both valve bodies can be arranged in both passages with the shaft insertion hole interposed therebetween, and the assembly workability is excellent.

以下、本発明の実施の形態を図面に基づいて説明する。
この実施の形態の空調装置は、空気導入口（１１）から車室に繋がる吹出口（１２ａ，１２ｂ，１２ｃ）に至る送風が形成される送風路（１３）を有したユニットハウジング（１４）と、前記送風路（１３）において、区画壁（４０）に区画された第１流路（１３１）と第２流路（１３２）と、前記第１流路（１３１）および第２流路（１３２）に、それぞれ、送風方向を変更可能に設けられた配風ドア（２２）と、を備え、前記第１流路（１３１）と前記第２流路（１３２）とで、独立して温度調節可能に形成された空調装置であって、前記配風ドア（２２）が、前記ユニットハウジング（１４）に回動可能に支持された回動軸（２２０）と、この回動軸（２２０）に結合され、前記第１流路（１３１）および第２流路（１３２）に配置された第１ドア板（２２１）および第２ドア板（２２２）と、を備え、前記区画壁（４０）に、前記回動軸（２２０）を貫通させる軸挿通穴（４５）が開口され、前記回動軸（２２０）の外周と、前記軸挿通穴（４５）の内周との間に、空気の流通が可能な隙間（４５ａ）が形成され、前記軸挿通穴（４５）の近傍の前記第１流路（１３１）と第２流路（１３２）とのそれぞれに、前記第１流路（１３１）と第２流路（１３２）との圧力差に基づいて、前記隙間（４５ａ）を塞ぐ位置と前記隙間（４５ａ）を開いた位置とに移動可能に第１弁体（２５１）および第２弁体（２５２）が設けられていることを特徴とする空調装置である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The air conditioner according to this embodiment includes a unit housing (14) having an air passage (13) in which air blowing from an air inlet (11) to an air outlet (12a, 12b, 12c) connected to a vehicle compartment is formed. In the air passage (13), the first flow path (131) and the second flow path (132) partitioned by the partition wall (40), the first flow path (131) and the second flow path (132). ) Are provided with air distribution doors (22) provided so that the blowing direction can be changed, and the first flow path (131) and the second flow path (132) are independently controlled in temperature. An air conditioner formed so as to be able to rotate, wherein the air distribution door (22) is rotatably supported by the unit housing (14) and the rotation shaft (220). Combined and disposed in the first flow path (131) and the second flow path (132). A first door plate (221) and a second door plate (222), and a shaft insertion hole (45) through which the rotating shaft (220) passes is opened in the partition wall (40), A gap (45a) through which air can flow is formed between the outer periphery of the rotation shaft (220) and the inner periphery of the shaft insertion hole (45), and the gap in the vicinity of the shaft insertion hole (45) is formed. Based on the pressure difference between the first channel (131) and the second channel (132), the gap (45a) is formed in each of the first channel (131) and the second channel (132). The air conditioner is characterized in that a first valve body (251) and a second valve body (252) are provided movably between a closing position and a position where the gap (45a) is opened.

以下に、図１〜図８に基づいて、この発明の最良の実施の形態の実施例１の空調装置Ａについて説明する。
図３は空調装置Ａの構成の概略を示す全体概略図であって、この空調装置Ａは、車両用のものであり、空調ユニット１とコントロールユニット２とセンサ群３とを備えている。 Below, based on FIGS. 1-8, the air conditioner A of Example 1 of the best embodiment of this invention is demonstrated.
FIG. 3 is an overall schematic diagram showing an outline of the configuration of the air conditioner A. The air conditioner A is for a vehicle and includes an air conditioning unit 1, a control unit 2, and a sensor group 3.

空調ユニット１は、図示を省略したインストルメントパネル内に設置され、空気導入口１１から、車室内に繋がる図示を省略した各種ダクトが接続されるデフ吹出口１２ａ，フット吹出口１２ｂ，ベント吹出口１２ｃに至る送風路１３を形成したユニットハウジング１４を備えている。なお、図示を省略した空気導入口１１の上流には、内外気を切り換えるインテークドアや空気導入口１１から各吹出口１２ａ〜１２ｃへ向かう送風を形成するブロワファンが設けられている。 The air-conditioning unit 1 is installed in an instrument panel (not shown), and is connected to an air inlet 11 and various ducts (not shown) connected to the vehicle compartment, and a differential outlet 12a, a foot outlet 12b, and a vent outlet. A unit housing 14 in which an air passage 13 reaching 12c is formed is provided. In addition, the blower fan which forms the ventilation which goes to each blower outlet 12a-12c from the intake door which switches inside / outside air, or the air inlet 11 is provided upstream of the air inlet 11 which abbreviate | omitted illustration.

ユニットハウジング１４の送風路１３には、送風上流側から順に、送風を冷却する冷却器５と、送風を加熱する加熱器６と、が設置されている。なお、冷却器５は、送風路１３の略全断面積を遮るように設けられて、送風路１３の送風の全量を冷却可能に設置されている。
一方、加熱器６は、その上方に加熱器６を迂回するバイパス路１７を形成して、送風路１３の下半分を遮るように設置され、送風路１３のバイパス路１７を通過しない送風を加熱する。 In the air passage 13 of the unit housing 14, a cooler 5 that cools the air and a heater 6 that heats the air are installed in this order from the upstream side of the air. In addition, the cooler 5 is provided so that the substantially whole cross-sectional area of the ventilation path 13 may be interrupted | blocked, and is installed so that the whole quantity of ventilation of the ventilation path 13 can be cooled.
On the other hand, the heater 6 is formed so as to bypass the lower half of the air passage 13 by forming a bypass passage 17 that bypasses the heater 6 above, and heats the air that does not pass through the bypass passage 17 of the air passage 13. To do.

さらに、ユニットハウジング１４には、エアミックスドア１５、センタデフドア２１、サイドデフドア２２、ベントドア２３、フットドア２４、補助温調ドア２５が設けられている。 Further, the unit housing 14 is provided with an air mix door 15, a center differential door 21, a side differential door 22, a vent door 23, a foot door 24, and an auxiliary temperature control door 25.

エアミックスドア１５は、冷却器５と加熱器６との間に設置され、上下方向にスライドしてバイパス路１７の開度を変更することで、冷却器５を通過した冷風と、加熱器６を通過した温風とがエアミックス部１８で混合される割合を調節して、空調ユニット１からの吹出空気温度を調節可能とするドアである。
本実施例１では、エアミックスドア１５は、スライド式のものであり、支持枠１５ａに沿って、図３において最も上方にスライドしたフルホット位置と、図３において最も下方にスライドしたフルクール位置と、の範囲で上下に移動可能に支持枠１５ａに支持されている。 The air mix door 15 is installed between the cooler 5 and the heater 6. The air mix door 15 slides in the vertical direction to change the opening of the bypass passage 17, so that the cool air passing through the cooler 5 and the heater 6 are changed. It is a door which adjusts the ratio by which the warm air which passed through the air mix part 18 is mixed, and can adjust the temperature of the air blown from the air conditioning unit 1.
In the first embodiment, the air mix door 15 is of a slide type, and along the support frame 15a, a full hot position that slides upward in FIG. 3 and a full cool position that slides downward in FIG. And is supported by the support frame 15a so as to be movable vertically.

両デフドア２１，２２、ベントドア２３、フットドア２４、補助温調ドア２５は、それぞれ、デフ吹出口１２ａ、ベント吹出口１２ｃ、フット吹出口１２ｂを開閉して空調ユニット１の吹出モードを切り換える配風ドアである。これらのドア２１〜２５の開閉状態に基づいて、空調ユニット１の吹出モードを、デフ吹出口１２ａを開いたデフモード、ベント吹出口１２ｃを開いたベントモード、フット吹出口１２ｂを開いたフットモード、ベント吹出口１２ｃとフット吹出口１２ｂを開いたバイレベルモードに切り換えることができる。 The differential doors 21 and 22, the vent door 23, the foot door 24, and the auxiliary temperature control door 25 are air distribution doors that open and close the differential air outlet 12 a, the vent air outlet 12 c, and the foot air outlet 12 b to switch the air outlet mode of the air conditioning unit 1. It is. Based on the open / closed state of these doors 21 to 25, the blowing mode of the air conditioning unit 1 is changed to a differential mode in which the differential outlet 12a is opened, a vent mode in which the vent outlet 12c is opened, a foot mode in which the foot outlet 12b is opened, It is possible to switch to the bi-level mode in which the vent outlet 12c and the foot outlet 12b are opened.

なお、センタデフドア２１およびサイドデフドア２２は、デフ吹出口１２ａを開閉する。なお、図５に示すように、デフ吹出口１２ａは、車幅方向（矢印Ｒが車両右方向を、矢印Ｌが車両左方向を示す）に長く形成されており、センタデフドア２１は、その車幅方向中央部を開閉し、サイドデフドア２２は、その車幅方向両側を開閉する。また、ベント吹出口１２ｃは、デフ吹出口１２ａの後方に同幅で連続して配置されている。 The center differential door 21 and the side differential door 22 open and close the differential outlet 12a. As shown in FIG. 5, the differential outlet 12a is formed long in the vehicle width direction (the arrow R indicates the vehicle right direction and the arrow L indicates the vehicle left direction), and the center differential door 21 has the vehicle width. The side differential door 22 opens and closes both sides in the vehicle width direction. Moreover, the vent blower outlet 12c is continuously arrange | positioned by the same width behind the differential blower outlet 12a.

図３に戻り、両デフドア２１，２２および補助温調ドア２５の回動は、アクチュエータを備えたデフドア駆動機構３１により、連動して成される。ベントドア２３の回動は、アクチュエータを備えたベントドア駆動機構３２により成される。エアミックスドア１５の回動は、アクチュエータを備えたエアミックスドア駆動機構３３により成される。フットドア２４の回動は、アクチュエータを備えたフットドア駆動機構３４により成される。 Returning to FIG. 3, the rotations of the differential doors 21 and 22 and the auxiliary temperature control door 25 are interlocked by a differential door drive mechanism 31 provided with an actuator. The vent door 23 is rotated by a vent door drive mechanism 32 having an actuator. The air mix door 15 is rotated by an air mix door drive mechanism 33 provided with an actuator. The foot door 24 is rotated by a foot door drive mechanism 34 provided with an actuator.

本実施例１では、エアミックスドア１５の下流には、その下流の送風路１３のほぼ全長に亘り図４において斜線で表示する区画壁４０が設けられている。この区画壁４０は、図５に示すように、ユニットハウジング１４の矢印Ｒ，Ｌ方向である幅方向の中央に配置され、送風路１３は、車両右側（矢印Ｒ方向）の第１流路１３１と、車両左側（矢印Ｌ方向）の第２流路１３２とに区画されている（図１参照）。 In the first embodiment, a partition wall 40 indicated by hatching in FIG. 4 is provided on the downstream side of the air mix door 15 over substantially the entire length of the blower passage 13 on the downstream side. As shown in FIG. 5, the partition wall 40 is disposed in the center of the unit housing 14 in the width direction that is the directions of the arrows R and L, and the air passage 13 is the first flow path 131 on the right side of the vehicle (the direction of the arrow R). And a second flow path 132 on the left side of the vehicle (in the direction of arrow L) (see FIG. 1).

本実施例１では、区画壁４０は、第１隔壁部材４１、第２隔壁部材４２、第３隔壁部材４３、第４隔壁部材４４を備えている。第１隔壁部材４１は、センタデフドア２１、フットドア２４、補助温調ドア２５の回動軸２１０，２４０，２５０の下方に配置されている。第２隔壁部材４２は、第１隔壁部材４１の上端縁から上方に連続して配置され、上端部がサイドデフドア２２およびベントドア２３の位置に配置されている。第３隔壁部材４３および第４隔壁部材４４は、その上方に接続される図示を省略したダクト部材に一体に形成され、ダクト部材を両吹出口１２ａ．１２ｃに接続した際に、第２隔壁部材４２の上端縁に連続して配置される。 In the first embodiment, the partition wall 40 includes a first partition member 41, a second partition member 42, a third partition member 43, and a fourth partition member 44. The first partition member 41 is disposed below the rotation shafts 210, 240, and 250 of the center differential door 21, the foot door 24, and the auxiliary temperature control door 25. The second partition member 42 is continuously disposed upward from the upper end edge of the first partition member 41, and the upper end portions are disposed at the positions of the side differential door 22 and the vent door 23. The third partition member 43 and the fourth partition member 44 are formed integrally with a duct member (not shown) connected above the duct member, and the duct members are connected to the outlets 12a. When connected to 12c, the second partition wall member 42 is continuously disposed on the upper edge.

本実施例１の場合、区画壁４０で区画された第１流路１３１と第２流路１３２とを流れる送風は、それぞれ、図外の車室の左右にそれぞれ独立して供給される。例えば、図５に示すユニットハウジング１４の上部に設けられたデフ吹出口１２ａおよびベント吹出口１２ｃの車両右側部分と、車両左側部分には、それぞれ、図示を省略したダクト部材が独立して接続され、第１流路１３１は、図外のインストルメントパネルにおいて車両右側に位置する吹出グリルに接続され、一方、第２流路１３２は、同様の車両右側の吹出グリルに接続される。
また、本実施例１では、エアミックスドア１５は、図３において、手前側と奥側とに一対並列に設けられている。したがって、第１流路１３１と第２流路１３２とは、２枚のエアミックスドア１５の位置を独立して制御することで、それぞれ、送風温度を独立して調節することができる。 In the case of the present Example 1, the ventilation which flows through the 1st flow path 131 and the 2nd flow path 132 divided by the division wall 40 is each independently supplied to the right and left of the vehicle interior outside a figure. For example, duct members (not shown) are independently connected to the vehicle right side portion and the vehicle left side portion of the differential air outlet 12a and the vent air outlet 12c provided in the upper portion of the unit housing 14 shown in FIG. The first flow path 131 is connected to a blowing grill located on the right side of the vehicle in the instrument panel (not shown), while the second flow path 132 is connected to a similar blowing grill on the right side of the vehicle.
In the first embodiment, a pair of air mix doors 15 are provided in parallel on the front side and the back side in FIG. Therefore, the 1st flow path 131 and the 2nd flow path 132 can adjust the ventilation temperature independently by controlling the position of the two air mix doors 15 independently, respectively.

一方、本実施例１では、空調ユニット１の吹出モードは、左右共通で設定されている。すなわち、吹出モードを形成する各ドア２１，２２，２３，２４，２５は、区画壁４０を貫通して設けられており、第１流路１３１側と第２流路１３２側とで、一体に動作する。 On the other hand, in the present Example 1, the blowing mode of the air conditioning unit 1 is set to be common to the left and right. That is, the doors 21, 22, 23, 24, and 25 that form the blowing mode are provided through the partition wall 40, and are integrally formed on the first flow path 131 side and the second flow path 132 side. Operate.

この区画壁４０を貫通する各ドア２１〜２５の構造について、サイドデフドア２２を代表して構成を説明する。
サイドデフドア２２は、図６に示すように、円柱棒状の回動軸２２０と、回動軸２２０の軸方向両端部に回動軸２２０と一体に形成され、回動軸２２０から外径方向に延在された薄板状の第１ドア板２２１および第２ドア板２２２と、回動軸２２０の軸方向中央部に一体に形成され、軸方向に間隔を空けて設けられた略円盤状の第１弁体２５１および第２弁体２５２と、を備えている。 The structure of each of the doors 21 to 25 penetrating the partition wall 40 will be described with the side differential door 22 as a representative.
As shown in FIG. 6, the side differential door 22 is formed integrally with the rotating shaft 220 at both ends in the axial direction of the cylindrical rod-shaped rotating shaft 220 and the rotating shaft 220, and extends from the rotating shaft 220 in the outer diameter direction. The thin plate-like first door plate 221 and second door plate 222 that are present and the substantially disc-shaped first door formed integrally with the central portion in the axial direction of the rotary shaft 220 and spaced apart in the axial direction. A valve body 251 and a second valve body 252 are provided.

なお、センタデフドア２１も、図５に示すように、区画壁４０を挟んで、第１ドア板２１１と第２ドア板２１２とを備えており、ベントドア２３も、区画壁４０を挟んで、第１ドア板２３１と第２ドア板２３２を備えている（図８参照）。同様に、図示は省略するが、フットドア２４、補助温調ドア２５も、区画壁４０を挟んで、第１ドア板と第２ドア板とを備えている。 As shown in FIG. 5, the center differential door 21 also includes a first door plate 211 and a second door plate 212 with the partition wall 40 interposed therebetween, and the vent door 23 also includes the first door plate 211 with the partition wall 40 interposed therebetween. A door plate 231 and a second door plate 232 are provided (see FIG. 8). Similarly, although not illustrated, the foot door 24 and the auxiliary temperature control door 25 also include a first door plate and a second door plate with the partition wall 40 interposed therebetween.

次に、サイドデフドア２２の回動軸２２０が、区画壁４０を貫通している部分の構成について説明する。
図４に示すように、区画壁４０には、第１隔壁部材４１と第２隔壁部材４２との間に、略逆Ｕ字形状の軸挿通穴４５が開口されている。すなわち、第２隔壁部材（回動軸２２０に対し第１の隔壁部材に相当する）４２の下端部に略Ｕ字状の切欠部が形成されており、この切欠部の開口を、第３隔壁部材（回動軸２２０に対し第２の隔壁部材に相当する）４３の上端縁で塞いで軸挿通穴４５が形成されている。
なお、ベントドア２３の回動軸２３０を挿通させる軸挿通穴４６も、同様に、第２隔壁部材４２の上端縁のＵ字状の切欠部の開口を、第４隔壁部材４４で塞いで形成されている。また、センタデフドア２１の回動軸２１０を挿通させる軸挿通穴４７、補助温調ドア２５の回動軸２５０を挿通させる軸挿通穴４８、フットドア２４の回動軸２４０を挿通させる軸挿通穴４９は、第２隔壁部材４２の下端にＵ字状に形成した切欠部の開口を、第１隔壁部材４１の上端縁で塞いで、形成されている。 Next, a configuration of a portion where the rotation shaft 220 of the side differential door 22 passes through the partition wall 40 will be described.
As shown in FIG. 4, a substantially inverted U-shaped shaft insertion hole 45 is opened in the partition wall 40 between the first partition member 41 and the second partition member 42. That is, a substantially U-shaped notch is formed at the lower end of the second partition member (corresponding to the first partition member with respect to the rotation shaft 220) 42, and the opening of the notch is formed in the third partition. A shaft insertion hole 45 is formed by closing the upper end edge of a member (corresponding to the second partition member with respect to the rotation shaft 220) 43.
Similarly, the shaft insertion hole 46 through which the rotation shaft 230 of the vent door 23 is inserted is formed by closing the opening of the U-shaped notch at the upper edge of the second partition member 42 with the fourth partition member 44. ing. A shaft insertion hole 47 through which the rotation shaft 210 of the center differential door 21 is inserted, a shaft insertion hole 48 through which the rotation shaft 250 of the auxiliary temperature control door 25 is inserted, and a shaft insertion hole 49 through which the rotation shaft 240 of the foot door 24 is inserted. The opening of the U-shaped notch formed at the lower end of the second partition member 42 is formed by closing the upper end edge of the first partition member 41.

サイドデフドア２２の回動軸２２０は、図１に示すように、軸挿通穴４５に貫通されている。そして、この貫通状態で、第１弁体２５１および第２弁体２５２は、区画壁４０を挟み、区画壁４０から離間して設けられている。
すなわち、図２に拡大して示すように、両弁体２５１，２５２の間の間隙Ｌは、区画壁４０の板厚ｔよりも大きな寸法に形成されている。本実施例１では、各弁体２５１，２５２と区画壁４０との間に、０．１〜１．０ｍｍ程度の間隔が形成される寸法に形成されており、本実施例１では、図示のように、各弁体２５１，２５２と区画壁４０との間に、略均等な間隔が形成された場合に、その寸法が０．５ｍｍとなるように形成されている。
また、軸挿通穴４５は、回動軸２２０よりも大きな寸法に形成されており、回動軸２２０の外周と軸挿通穴４５の内周との間には、空気の流通が可能な隙間４５ａが形成されている。本実施例１では、上述したように、軸挿通穴４５が略Ｕ字断面形状に形成されていることから（図４参照）、隙間４５ａの寸法は、回動軸２２０の周方向で一定では無いが、回動軸２２０の組付誤差、寸法誤差および撓みが生じても、回動軸２２０と軸挿通穴４５とが干渉することの無い寸法に形成されている。具体的には、隙間４５ａは、例えば、数ｍｍであって、本実施例１では、略Ｕ字の形状に基づいて、場所により１〜３ｍｍ程度の隙間が形成される。
なお、前述したフットドア２４の第１弁体２５１および第２弁体２５２は、軸挿通穴４５を軸方向で完全に覆うことができる外形寸法に形成されている。 As shown in FIG. 1, the rotation shaft 220 of the side differential door 22 passes through the shaft insertion hole 45. In this penetrating state, the first valve body 251 and the second valve body 252 are provided apart from the partition wall 40 with the partition wall 40 interposed therebetween.
That is, as shown in an enlarged view in FIG. 2, the gap L between the valve bodies 251 and 252 is formed with a size larger than the plate thickness t of the partition wall 40. In the present Example 1, it forms in the dimension in which the space | interval of about 0.1-1.0 mm is formed between each valve body 251 and 252 and the partition wall 40, In this Example 1, illustration is shown. Thus, when the substantially equal space | interval is formed between each valve body 251 and 252 and the division wall 40, it forms so that the dimension may be set to 0.5 mm.
The shaft insertion hole 45 is formed to have a size larger than that of the rotation shaft 220, and a gap 45 a that allows air to flow between the outer periphery of the rotation shaft 220 and the inner periphery of the shaft insertion hole 45. Is formed. In the first embodiment, as described above, since the shaft insertion hole 45 is formed in a substantially U-shaped cross section (see FIG. 4), the size of the gap 45a is not constant in the circumferential direction of the rotating shaft 220. However, even if an assembly error, a dimensional error, and a bending of the rotation shaft 220 occur, the rotation shaft 220 and the shaft insertion hole 45 do not interfere with each other. Specifically, the gap 45a is, for example, several mm, and in the first embodiment, a gap of about 1 to 3 mm is formed depending on the location based on the substantially U-shape.
In addition, the 1st valve body 251 and the 2nd valve body 252 of the foot door 24 mentioned above are formed in the external dimension which can cover the shaft insertion hole 45 completely in an axial direction.

回動軸２２０の両端には、一般部よりも小径となった端部軸部２２３，２２４が形成されている。そして、各端部軸部２２３，２２４は、図１に示すように、ユニットハウジング１４の外壁１４ｗに開口された支持穴１４ｂに、軸方向にスライド可能に支持されている。 End shaft portions 223 and 224 having a smaller diameter than the general portion are formed at both ends of the rotation shaft 220. As shown in FIG. 1, the end shaft portions 223 and 224 are supported by the support holes 14 b opened in the outer wall 14 w of the unit housing 14 so as to be slidable in the axial direction.

また、一方の端部軸部２２４は、フットドア駆動機構３４の駆動を伝達する駆動アーム３２ａが連結されている。
この駆動アーム３２ａと端部軸部２２４との結合は、図７に示すように、駆動アーム３２ａに穿設された連結用穴３２ｂに、端部軸部２２４を差し込んだ結合となっている。そして、この結合部分は、連結用穴３２ｂの内周および端部軸部２２４の外周を、図示の略Ｄ字状あるいはＩ字状などのように、軸方向には相対移動可能である一方、周方向には係合する形状に形成されている。 One end shaft portion 224 is connected to a drive arm 32 a that transmits the drive of the foot door drive mechanism 34.
As shown in FIG. 7, the coupling between the drive arm 32a and the end shaft portion 224 is a coupling in which the end shaft portion 224 is inserted into a connection hole 32b formed in the drive arm 32a. The coupling portion is relatively movable in the axial direction, such as the substantially D-shaped or I-shaped illustrated, on the inner periphery of the coupling hole 32b and the outer periphery of the end shaft portion 224, It is formed in the shape engaged in the circumferential direction.

なお、ベントドア２３の回動軸２３０にも、図８に示すように、両弁体２５１，２５２と同様の第１弁体３５１および第２弁体３５２が設けられている。さらに、詳細な図示は省略するが、センタデフドア２１、フットドア２４、補助温調ドア２５にも、同様の弁体が設けられている。 In addition, as shown in FIG. 8, the rotating shaft 230 of the vent door 23 is also provided with the first valve body 351 and the second valve body 352 similar to the both valve bodies 251 and 252. Further, although not shown in detail, the center differential door 21, the foot door 24, and the auxiliary temperature control door 25 are also provided with similar valve bodies.

図３に戻り、センサ群３には、図示は省略するが内気温センサ、外気温センサ、日射センサ、水温センサ、車速センサなどの温度環境に関係する因子を検出するセンサに加え、乗員が設定操作を行う操作スイッチ３ｓが含まれている。
この操作スイッチ３ｓは、図示は省略するが、ＯＮ／ＯＦＦスイッチ、風量コントロールスイッチ、吹出モード切換スイッチ、インテークモード切換スイッチ、エアコンスイッチなどを備えている。そして、本実施例１では、運転席と助手席の左右乗員がそれぞれ送風の吹出温度を独立して設定できるようになっている。
このコントロールユニット２は、空調ユニット１の各駆動機構３１〜３４に接続されており、センサ群３からの入力に基づいて空調ユニット１の作動を制御する。なお、この制御の詳細については、本発明の要旨とする部分ではないので、説明を省略するが、操作スイッチ３ｓの設定温度に基づいて、左右の吹出温度を決定し、この左右の吹出温度に基づいて、２枚のエアミックスドア１５を独立して制御すべく、エアミックスドア駆動機構３３に制御出力を行う制御が含まれている。 Returning to FIG. 3, the sensor group 3 is set by the occupant in addition to sensors that detect factors related to the temperature environment, such as an inside air temperature sensor, an outside air temperature sensor, a solar radiation sensor, a water temperature sensor, and a vehicle speed sensor, although not shown. An operation switch 3s for performing an operation is included.
Although not shown, the operation switch 3s includes an ON / OFF switch, an air volume control switch, a blow mode switching switch, an intake mode switching switch, an air conditioner switch, and the like. In the first embodiment, the left and right occupants of the driver's seat and the passenger seat can set the blowout temperature independently.
The control unit 2 is connected to the drive mechanisms 31 to 34 of the air conditioning unit 1 and controls the operation of the air conditioning unit 1 based on inputs from the sensor group 3. The details of this control are not part of the gist of the present invention and will not be described. However, the left and right blowing temperatures are determined based on the set temperature of the operation switch 3s, and the left and right blowing temperatures are determined. Based on this, control for outputting a control output to the air mix door drive mechanism 33 is included to control the two air mix doors 15 independently.

次に、実施例１の作用を説明する。
（組付作業時）
空調ユニット１の組付作業において、サイドデフドア２２の回動軸２２０を軸挿通穴４５に貫通状態とする場合の作業は以下の手順となる。
まず、ユニットハウジング１４に第１隔壁部材４１および第２隔壁部材４２を取り付ける。
次に、サイドデフドア２２をユニットハウジング１４に組み付ける。
この場合、回動軸２２０の両端の端部軸部２２３，２２４を、支持穴１４ｂに挿通させてユニットハウジング１４の送風路１３に横架させ、回動軸２２０を第１隔壁部材４１の上縁の近傍に配置する。
次に、両吹出口１２ａ，１２ｃに図示を省略したダクト部材を組み付け、第２隔壁部材４２の上端に第３隔壁部材４３の下端縁を当接させる。このとき、第２隔壁部材４２の上端縁部に形成された略Ｕ字の切欠部の上端の開口を、第３隔壁部材４３により塞いで、第２隔壁部材４２と第３隔壁部材４３との間に軸挿通穴４５を形成するとともに、この軸挿通穴４５に、回動軸２２０が貫通された状態とする。
以上のようにして、両弁体２５１，２５２よりも小径の軸挿通穴４５の両側に、両弁体２５１，２５２を配置させることができる。 Next, the operation of the first embodiment will be described.
(During assembly work)
In the assembling work of the air conditioning unit 1, the work when the rotating shaft 220 of the side differential door 22 is passed through the shaft insertion hole 45 is as follows.
First, the first partition member 41 and the second partition member 42 are attached to the unit housing 14.
Next, the side differential door 22 is assembled to the unit housing 14.
In this case, the end shaft portions 223 and 224 at both ends of the rotation shaft 220 are inserted through the support holes 14 b and horizontally mounted on the air passage 13 of the unit housing 14, and the rotation shaft 220 is placed on the first partition member 41. Place near the edge.
Next, a duct member (not shown) is assembled to both the air outlets 12 a and 12 c, and the lower end edge of the third partition member 43 is brought into contact with the upper end of the second partition member 42. At this time, the opening at the upper end of the substantially U-shaped notch formed at the upper edge of the second partition member 42 is closed by the third partition member 43, so that the second partition member 42 and the third partition member 43 A shaft insertion hole 45 is formed therebetween, and the rotation shaft 220 is passed through the shaft insertion hole 45.
As described above, both valve bodies 251 and 252 can be arranged on both sides of the shaft insertion hole 45 having a smaller diameter than both valve bodies 251 and 252.

また、回動軸２２０と軸挿通穴４５との間に、隙間４５ａが設定されているため、回動軸２２０と軸挿通穴４５とが当接されているものと比較して、回動軸２２０の回動時の摺動抵抗を抑えることができるとともに、組付誤差や回動軸２２０の軸直交方向の変形などを原因として、回動軸２２０と軸挿通穴４５とが干渉するのを抑制できる。 In addition, since a gap 45a is set between the rotation shaft 220 and the shaft insertion hole 45, the rotation shaft is compared with the case where the rotation shaft 220 and the shaft insertion hole 45 are in contact with each other. The sliding resistance during rotation of 220 can be suppressed, and the rotation shaft 220 and the shaft insertion hole 45 can interfere with each other due to an assembly error or deformation of the rotation shaft 220 in the direction perpendicular to the axis. Can be suppressed.

（空調作動時）
車両の左右で送風温度を独立制御する場合、操作スイッチ３ｓの設定温度に応じ、エアミックスドア１５の位置を、第１流路１３１側と第２流路１３２側とで、それぞれ、独立して制御する。 (At the time of air conditioning operation)
When the air temperature is independently controlled on the left and right sides of the vehicle, the position of the air mix door 15 is independently set on the first flow path 131 side and the second flow path 132 side according to the set temperature of the operation switch 3s. Control.

ここで、左右の設定温度が異なる場合、左右２枚のエアミックスドア１５の位置が異なることから、第１流路１３１と第２流路１３２とでは、加熱器６を通過する送風量が異なる。
これにより、第１流路１３１と第２流路１３２とにおいて、通気抵抗が異なる。すなわち、設定温度が高く、加熱器６を通過する流量が多い側は、設定温度が低く、加熱器６を通過する流量が少ない側と比較して、加熱器６における通気抵抗が高くなることから、流量が少なくなり低圧となる。 Here, when the left and right set temperatures are different, the positions of the two left and right air mix doors 15 are different, so that the amount of air passing through the heater 6 is different between the first flow path 131 and the second flow path 132. .
Thereby, the ventilation resistance differs between the first channel 131 and the second channel 132. That is, the side where the set temperature is high and the flow rate passing through the heater 6 is high has a higher air flow resistance in the heater 6 than the side where the set temperature is low and the flow rate passing through the heater 6 is low. The flow rate decreases and the pressure becomes low.

このため、第１流路１３１と第２流路１３２とで圧力差が生じる。
図２では、第１流路１３１が第２流路１３２よりも高圧となっている状態を例示しており、このような場合、軸挿通穴４５にあっては、回動軸２２０との間に形成された隙間４５ａを介して、図２に示すように、図において左側に示す高圧ＰＨの第１流路１３１から低圧ＰＬの第２流路１３２に向かう送風Ｗが生じようとする。 For this reason, a pressure difference is generated between the first channel 131 and the second channel 132.
FIG. 2 illustrates a state in which the first flow path 131 is at a higher pressure than the second flow path 132. In such a case, the shaft insertion hole 45 is located between the rotation shaft 220 and the shaft passage hole 45. As shown in FIG. 2, the air blow W directed from the first flow path 131 of the high pressure PH shown in the left side to the second flow path 132 of the low pressure PL is generated through the gap 45 a formed in the left side.

これに伴い、第１弁体２５１と第２弁体２５２とでは、図において右方向に圧力を受け、回動軸２２０が、図において右方向にスライドし、第１弁体２５１が、軸挿通穴４５を塞ぐ。
したがって、軸挿通穴４５と回動軸２２０との間の隙間４５ａを介して、第１流路１３１の送風が第２流路１３２へ混入されるのが防止される。 Accordingly, the first valve body 251 and the second valve body 252 receive pressure in the right direction in the drawing, the rotation shaft 220 slides in the right direction in the drawing, and the first valve body 251 is inserted through the shaft. The hole 45 is closed.
Therefore, air from the first flow path 131 is prevented from being mixed into the second flow path 132 through the gap 45 a between the shaft insertion hole 45 and the rotation shaft 220.

よって、第１流路１３１と第２流路１３２との送風温度が、上記混入が生じて、制御目標からずれるのを防止して、制御精度を向上することができる。
なお、上記とは逆に第２流路１３２が第１流路１３１よりも高圧となった場合には、回動軸２２０は、図において左方向にスライドして、第２弁体２５２が、隙間４５ａを塞ぎ、上述した第１流路１３１と第２流路１３２との送風の混入を防止する。 Therefore, it is possible to prevent the air temperature in the first flow path 131 and the second flow path 132 from deviating from the control target and improve the control accuracy.
In contrast, when the second flow path 132 has a higher pressure than the first flow path 131, the rotation shaft 220 slides to the left in the drawing, and the second valve body 252 The gap 45a is closed to prevent the air from entering the first flow path 131 and the second flow path 132 described above.

以上説明してきたように、実施例１の空調装置Ａは、以下に列挙する効果を奏する。
ａ）第１流路１３１と第２流路１３２とで圧力差が生じた場合、第１弁体２５１と第２弁体２５２との一方が、圧力差により移動して隙間４５ａを塞ぐため、圧力差が原因とした隙間４５ａを介した第１流路１３１と第２流路１３２との送風の混入を防止できる。
よって、第１流路１３１と第２流路１３２との温度差を保つことができ、温度制御性能の向上を図ることができる。
ｂ）回動軸２２０の外周と軸挿通穴４５の内周との間に隙間４５ａを設定しているため、回動軸２２０と軸挿通穴４５とが当接されているものと比較して、回動軸２２０の回動時の摺動抵抗を抑えることができるとともに、組付誤差や回動軸２２０の軸直交方向の変形などを原因として、回動軸２２０と軸挿通穴４５とが干渉するのを抑制できる。
ｃ）第１弁体２５１と第２弁体２５２とを、回動軸２２０に一体に設けたため、回動軸２２０と別体としたものと比較して、部品点数を少なくして、製造コスト低減、組付手間の削減、重量軽減を図ることが可能となる。
ｄ）区画壁４０を、複数の隔壁部材４１〜４４に分割し、その境界部分に各軸挿通穴４５〜４９を設けたため、各軸挿通穴４５〜４９を開放させた状態で、各回動軸２１０〜２５０を挿通させることができ、作業性に優れる。 As described above, the air conditioner A according to the first embodiment has the effects listed below.
a) When a pressure difference occurs between the first flow path 131 and the second flow path 132, one of the first valve body 251 and the second valve body 252 moves due to the pressure difference and closes the gap 45a. It is possible to prevent air from being mixed between the first flow path 131 and the second flow path 132 through the gap 45a caused by the pressure difference.
Therefore, the temperature difference between the first channel 131 and the second channel 132 can be maintained, and the temperature control performance can be improved.
b) Since a gap 45a is set between the outer periphery of the rotation shaft 220 and the inner periphery of the shaft insertion hole 45, the rotation shaft 220 and the shaft insertion hole 45 are compared with those in contact with each other. The sliding resistance of the rotating shaft 220 during rotation can be suppressed, and the rotating shaft 220 and the shaft insertion hole 45 are caused by an assembly error or deformation of the rotating shaft 220 in the direction orthogonal to the axis. Interference can be suppressed.
c) Since the first valve body 251 and the second valve body 252 are integrally provided on the rotating shaft 220, the number of parts is reduced and the manufacturing cost is reduced as compared with a structure separate from the rotating shaft 220. It is possible to reduce the amount of labor, assembling work, and reduce the weight.
d) Since the partition wall 40 is divided into a plurality of partition members 41 to 44 and the shaft insertion holes 45 to 49 are provided at the boundary portions, the rotation shafts are opened in the state where the shaft insertion holes 45 to 49 are opened. 210 to 250 can be inserted, and the workability is excellent.

（他の実施例）
次に、本発明の実施の形態の他の実施例について説明する。
なお、これら他の実施例を説明するのにあたり、実施例１と共通する構成には、実施例１で示した符号を付けることで、説明を省略する。また、作用についても、実施例１と共通する作用については説明を省略する。 (Other examples)
Next, another example of the embodiment of the present invention will be described.
In the description of these other embodiments, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is omitted. Also, with regard to the action, the description of the action common to the first embodiment is omitted.

次に、図９に基づいて実施例２の空調装置について説明する。
実施例２は、実施例１で示したのとは異なるベントドア２００において、第１弁体２０１および第２弁体２０２を、回動軸２０３に回動可能に取り付けた例である。
すなわち、両弁体２０１，２０２は、回動軸２０３を挿通可能な挿通穴２０１ａ，２０２ａが形成されているとともに、この挿通穴２０１ａ，２０２ａに回動軸２０３を挿入させる変形を可能とする切欠部２０１ｂ，２０２ｂを有した略Ｃ状に形成されている。 Next, the air conditioner of Example 2 is demonstrated based on FIG.
The second embodiment is an example in which the first valve body 201 and the second valve body 202 are rotatably attached to the rotation shaft 203 in a vent door 200 different from that shown in the first embodiment.
That is, the valve bodies 201 and 202 are formed with insertion holes 201a and 202a through which the rotation shaft 203 can be inserted, and a notch that allows the rotation shaft 203 to be inserted into the insertion holes 201a and 202a. It is formed in a substantially C shape having portions 201b and 202b.

一方、回動軸２０３の外周には、両弁体２０１，２０２の挿通穴２０１ａ，２０２ａと係合して、軸方向への移動を許容するとともに、その移動量を所定量に制限可能なスライド溝２０３ａが形成されている。 On the other hand, on the outer periphery of the rotating shaft 203, a slide that engages with the insertion holes 201a and 202a of both valve bodies 201 and 202 to allow movement in the axial direction and limit the movement amount to a predetermined amount. A groove 203a is formed.

したがって、本実施例２では、第１流路１３１と第２流路１３２とに圧力差が生じた場合、両弁体２０１，２０２が回動軸２０３に対してスライドすることで、回動軸２０３が挿通された軸挿通穴（例えば、軸挿通穴４５）を塞ぐ。よって、実施例２では、回動軸２０３は、ユニットハウジング１４の外壁１４ｗに軸方向に移動可能に支持する必要は無い。 Therefore, in the second embodiment, when a pressure difference occurs between the first flow path 131 and the second flow path 132, the valve bodies 201 and 202 slide with respect to the rotation shaft 203, so that the rotation shaft A shaft insertion hole (for example, shaft insertion hole 45) through which 203 is inserted is closed. Therefore, in the second embodiment, the rotation shaft 203 does not need to be supported on the outer wall 14w of the unit housing 14 so as to be movable in the axial direction.

また、両弁体２０１，２０２の回動軸２０３への組付は、ベントドア２００をユニットハウジング１４へ組み付ける前、組み付けた後のいずれでも組付可能であり、組付作業の自由度を向上できる。 Further, the both valve bodies 201, 202 can be assembled to the rotating shaft 203 before or after the vent door 200 is assembled to the unit housing 14, and the degree of freedom of the assembling work can be improved. .

次に、図１０および図１１に基づいて実施例３の空調装置ついて説明する。
実施例３の空調装置では、ベントドア３００の構造が、実施例１，２とは異なっており、図１０に示すように、ベントドア３００は、軸方向の中間部で分割された第１部材３０１と第２部材３０２との２つの部材を結合して形成されている。 Next, an air conditioner according to a third embodiment will be described with reference to FIGS. 10 and 11.
In the air conditioner of the third embodiment, the structure of the vent door 300 is different from that of the first and second embodiments. As shown in FIG. 10, the vent door 300 includes a first member 301 divided at an intermediate portion in the axial direction. The second member 302 is formed by joining two members.

すなわち、回動軸３０３は、軸方向の中央部で分割され、第１部材３０１に一体の第１回動軸３０３ａと、第２部材３０２に一体の第２回動軸３０３ｂと、を備えている。 That is, the rotation shaft 303 includes a first rotation shaft 303 a integrated with the first member 301 and a second rotation shaft 303 b integrated with the second member 302. Yes.

実施例１で示したのと同様の第１弁体２５１は、第１回動軸３０３ａと一体に形成されており、同様の第２弁体２５２は、第２回動軸３０３ｂと一体に形成されている。 A first valve body 251 similar to that shown in the first embodiment is formed integrally with the first rotating shaft 303a, and a similar second valve body 252 is formed integrally with the second rotating shaft 303b. Has been.

また、第１回動軸３０３ａと第２回動軸３０３ｂとは、相互に差し込んで結合可能に形成されている。すなわち、図１０に示すように、第１回動軸３０３ａの先端には、挿込穴３０３ｃが軸方向に穿設されている。一方、図１１に示すように、第２回動軸３０３ｂの先端には、挿込軸３０３ｄが形成されている。 Moreover, the 1st rotation axis | shaft 303a and the 2nd rotation axis | shaft 303b are formed so that a mutual insertion is possible. That is, as shown in FIG. 10, an insertion hole 303c is formed in the axial direction at the tip of the first rotation shaft 303a. On the other hand, as shown in FIG. 11, an insertion shaft 303d is formed at the tip of the second rotation shaft 303b.

したがって、第１回動軸３０３ａの挿込穴３０３ｃに挿込軸３０３ｄを挿し込んで、第１部材３０１と第２部材３０２とを結合させることができる。なお、挿込穴３０３ｃと挿込軸３０３ｄとは、軸方向に挿通可能であるが、軸を中心とする回動方向には係合して相対回動不可能な形状に形成されている。 Therefore, the first member 301 and the second member 302 can be coupled by inserting the insertion shaft 303d into the insertion hole 303c of the first rotation shaft 303a. The insertion hole 303c and the insertion shaft 303d can be inserted in the axial direction, but are engaged with each other in the rotational direction around the shaft and formed into a shape that cannot be relatively rotated.

したがって、実施例３では、ベントドア３００をユニットハウジング１４へ組み付ける際に、第１部材３０１と第２部材３０２とを、それぞれ、独立して組付可能であり、実施例１で示したように、軸挿通穴４５〜４９が上下に分割可能でない単純な穴構造であっても、組付が可能である。 Therefore, in the third embodiment, when the vent door 300 is assembled to the unit housing 14, the first member 301 and the second member 302 can be independently assembled. As shown in the first embodiment, The shaft insertion holes 45 to 49 can be assembled even if they have a simple hole structure that cannot be divided vertically.

以上、図面を参照して、本発明の実施の形態および実施例１〜３について詳述してきたが、具体的な構成は、この実施の形態および実施例１〜３に限らず、本発明の要旨を逸脱しない程度の設計的変更は、本発明に含まれる。 As described above, the embodiment and Examples 1 to 3 of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment and Examples 1 to 3, and the present invention is not limited thereto. Design changes that do not depart from the gist are included in the present invention.

すなわち、実施例１〜３では、第１弁体２５１，２０１および第２弁体２５２，２０２を回動軸２２０，２０３，３０３に設けたものを示したが、これに限定されず、区画壁４０に取り付けてもよい。さらに、第１弁体および第２弁体は、実施例１〜３では、軸方向に移動可能なもの２５１，２５２，２０１，２０２を示したが、これに限定されず、例えば、弁体の外周の１箇所を中心に揺動可能なものなど、軸方向とは異なる方向に移動するものでもよい。 That is, in the first to third embodiments, the first valve body 251, 201 and the second valve body 252, 202 are provided on the rotary shafts 220, 203, 303. 40 may be attached. Furthermore, although the 1st valve body and the 2nd valve body showed the thing 251,252,201,202 which can move to an axial direction in Examples 1-3, it is not limited to this, For example, of a valve body It may be one that moves in a direction different from the axial direction, such as one that can swing around one place on the outer periphery.

また、実施例１〜３では、区画壁４０に区画された第１流路１３１と第２流路１３２との送風が、車室の左右に送風されるものを示したが、両流路１３１，１３２の送風の吹出方向はこれに限定されず、例えば、前席と後席などの車室の前後に送風するようにしてもよい。
さらに、本実施例１〜３では、空調装置として、車両用のものを示したがこれに限定されず、産業機器や建物などに適用してもよく、この場合、第１流路と第２流路との送風方向は、前述した左右や前後に限定されず、上下やその他の方向に向けて送風するようにしてもよい。 Moreover, in Examples 1-3, although the ventilation of the 1st flow path 131 and the 2nd flow path 132 which were divided by the partition wall 40 showed what was blown to the right and left of a vehicle interior, both flow paths 131 were shown. , 132 is not limited to this, and for example, the air may be blown before and after the passenger compartment such as the front seat and the rear seat.
Further, in the first to third embodiments, the air conditioner is for a vehicle, but is not limited thereto, and may be applied to industrial equipment, buildings, etc. In this case, the first flow path and the second flow path The blowing direction with the flow path is not limited to the above-described left and right and front and rear, but may be blown up and down or in other directions.

本発明の最良の実施の形態の実施例１の空調装置Ａの要部を示す断面図である。It is sectional drawing which shows the principal part of the air conditioner A of Example 1 of the best form of this invention. 実施例１の空調装置Ａの要部の拡大断面図である。It is an expanded sectional view of the important section of air conditioner A of Example 1. 実施例１の空調装置Ａの全体の概略を示す断面図である。It is sectional drawing which shows the outline of the whole air conditioner A of Example 1. FIG. 実施例１の空調装置Ａの区画壁４０を強調して示す断面図である。It is sectional drawing which emphasizes and shows the partition wall 40 of the air conditioner A of Example 1. FIG. 実施例１の空調装置Ａの全体を示す斜視図である。1 is a perspective view illustrating an entire air conditioner A according to Embodiment 1. FIG. 実施例１の空調装置Ａに用いたサイドデフドア２２を示す斜視図である。It is a perspective view which shows the side differential door 22 used for the air conditioner A of Example 1. FIG. 実施例１の空調装置Ａの端部軸部２２４と駆動アーム３２ａの結合部分を示す側面図である。It is a side view which shows the coupling | bond part of the edge part axial part 224 and the drive arm 32a of the air conditioner A of Example 1. FIG. 実施例１の空調装置Ａのベントドア２３を示す斜視図である。It is a perspective view which shows the vent door 23 of the air conditioner A of Example 1. FIG. 実施例２の空調装置に用いたベントドア２００を示す斜視図である。It is a perspective view which shows the vent door 200 used for the air conditioner of Example 2. FIG. 実施例３の空調装置に用いたベントドア３００を示す斜視図である。It is a perspective view which shows the vent door 300 used for the air conditioner of Example 3. FIG. 実施例３の空調装置において、ベントドア３００の第２部材３０２の第２回動軸３０３ｂの先端に設けた挿込軸３０３ｄを示す、図１０とは逆方向に視点を置いた斜視図である。In the air conditioner of Example 3, it is the perspective view which set | placed the viewpoint in the reverse direction to FIG.

Explanation of symbols

１１空気導入口
１２ａデフ吹出口
１２ｂフット吹出口
１２ｃベント吹出口
１３送風路
１４ユニットハウジング
２１センタデフドア(配風ドア)
２２サイドデフドア(配風ドア)
２３ベントドア(配風ドア)
２４フットドア(配風ドア)
２５補助温調ドア(配風ドア)
４０区画壁
４１第１隔壁部材
４２第２隔壁部材
４３第３隔壁部材
４４第４隔壁部材
４５軸挿通穴
４５ａ隙間
４６軸挿通穴
４７軸挿通穴
４８軸挿通穴
４９軸挿通穴
１３１第１流路
１３２第２流路
２２０回動軸
２２１第１ドア板
２２２第２ドア板
２５１第１弁体
２５２第２弁体 11 Air inlet 12a Differential outlet 12b Foot outlet 12c Vent outlet 13 Air passage 14 Unit housing 21 Center differential door (air distribution door)
22 Side differential door
23 Vent door
24 Foot door
25 Auxiliary temperature control door
40 partition wall 41 first partition member 42 second partition member 43 third partition member 44 fourth partition member 45 shaft insertion hole 45a clearance 46 shaft insertion hole 47 shaft insertion hole 48 shaft insertion hole 49 shaft insertion hole 131 first flow path 132 Second flow path 220 Rotating shaft 221 First door plate 222 Second door plate 251 First valve body 252 Second valve body

Claims

A unit housing having a blower passage in which air blowing from the air inlet to the blower outlet connected to the passenger compartment is formed;
In the air flow path, a first flow path and a second flow path partitioned by a partition wall;
An air distribution door provided in each of the first flow path and the second flow path so as to be able to change a blowing direction;
With
An air conditioner formed by the first flow path and the second flow path so that the temperature can be adjusted independently,
The air distribution door is pivotally supported by the unit housing so as to be pivotable, and a first door plate and a first door plate coupled to the pivot shaft and disposed in the first flow path and the second flow path. A two-door plate,
In the partition wall, a shaft insertion hole that penetrates the rotation shaft is opened,
Between the outer periphery of the rotation shaft and the inner periphery of the shaft insertion hole, a gap is formed through which air can flow.
Based on the pressure difference between the first flow path and the second flow path, the position for closing the gap and the gap are opened in the first flow path and the second flow path in the vicinity of the shaft insertion hole. An air conditioner in which a first valve body and a second valve body are provided so as to be movable to different positions.

The first valve body and the second valve body are provided integrally with the rotating shaft,
The air conditioner according to claim 1, wherein the rotating shaft is supported by the unit housing so as to be movable in an axial direction.

3. The air conditioner according to claim 1, wherein the partition wall is divided into a first partition member and a second partition member with the shaft insertion hole as a boundary.