JP2008254643A

JP2008254643A - Air conditioner for vehicle

Info

Publication number: JP2008254643A
Application number: JP2007100592A
Authority: JP
Inventors: Yukio Ozeki; 幸夫尾関
Original assignee: Calsonic Kansei Corp
Current assignee: Marelli Corp
Priority date: 2007-04-06
Filing date: 2007-04-06
Publication date: 2008-10-23

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle capable of introducing air with a high cleaning property into a cabin in cleaning of air and capable of attaining enhancement of heat exchange performance and low noise by avoiding influence of ventilation resistance by an air cleaning filter in heat exchange. <P>SOLUTION: In the rear air-conditioning unit R/AU1 having at least air cleaning function and heat exchange function, an air suction port 6 and a delivery/suction co-use port 7 is set on a rear tray panel 1, and a route switching mechanism is provided, which switches an air cleaning route for passing the air in a cabin sucked from the air suction port 6 through an air cleaning filter 3 and an air blowing fan 4 to be made to cleaned air and delivering the cleaned air from the delivery/suction co-use port 7 at cleaning of air, and a cooler route for passing the air in the cabin sucked from the delivery/suction co-use port 7 through the air blowing fan 4 and a cooling heat exchange 10 to be made to cooled air, and blowing out the cooled air from a rear cooler blowing out port 16 set toward to the inside of the cabin in cooling. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、空気清浄器一体型リアクーラ等として適用され、少なくとも空気清浄機能と熱交換機能を持たせた車両用空気調和装置に関する。 The present invention relates to a vehicle air conditioner that is applied as an air purifier integrated rear cooler or the like and has at least an air purifying function and a heat exchanging function.

従来、空気吸込み口を有する車室内パネルに空調ケースを取り付け、空調ケース内に空気清浄フィルタと送風ファンと冷房用熱交換器を有し、少なくとも空気清浄機能とクーラ機能を持たせた車両用空気調和装置としては、空気清浄フィルタの横位置に沿ってバイパス通路を設け、このバイパス通路に、空気清浄時に閉とし、クーラ時に開とするドアを設けたものが知られている（例えば、特許文献１参照）。
特開昭６２−１５２９１９号公報 Conventionally, an air conditioning case is attached to a vehicle interior panel having an air inlet, an air purifying filter, a blower fan, and a cooling heat exchanger are provided in the air conditioning case, and at least an air purifying function and a cooling function are provided for vehicle air. As a harmony device, a bypass passage is provided along the lateral position of the air purifying filter, and a door is provided in the bypass passage that is closed when the air is purified and opened when the air is cooled (for example, Patent Documents). 1).
JP-A-62-152919

しかしながら、上記従来の車両用空気調和装置にあっては、空気清浄時、ドア閉とし、吸入空気を空気清浄フィルタにより清浄した後、この清浄空気を送風ファンと冷房用熱交換器を介し車室内に導入するため、冷房用熱交換器を通過する際に交換器に付着していた埃等が清浄空気に混入する。また、クーラ時、ドア開とし、吸入空気の一部を、空気清浄フィルタを迂回するバイパス通路により導入し、送風ファンにて吸引するようにしているため、空気清浄フィルタの横位置にバイパス通路やドアを設定する分、空調ユニットが大型化する。しかも、ユニット大型化にもかかわらず、バイパス通路の通路面積として十分に広い面積を確保できず、通気抵抗低減の効果代が小さく、このため、クーラ性能の向上や低騒音化を望めない、という問題があった。 However, in the above conventional vehicle air conditioner, the door is closed when the air is cleaned, and after the intake air is cleaned by the air cleaning filter, the clean air is passed through the blower fan and the heat exchanger for cooling. Therefore, dust or the like adhering to the exchanger when passing through the cooling heat exchanger is mixed into the clean air. In addition, the door is opened at the time of the cooler, and a part of the intake air is introduced by a bypass passage that bypasses the air purification filter and is sucked by a blower fan. The size of the air conditioning unit is increased by setting the door. Moreover, despite the increase in unit size, it is not possible to secure a sufficiently large area as the bypass passage area, and the effect of reducing the airflow resistance is small, so that it is not possible to improve the cooler performance or reduce noise There was a problem.

本発明は、上記問題に着目してなされたもので、空気清浄時、清浄性の高い空気を車室内に導入できると共に、熱交換時、空気清浄フィルタによる通気抵抗の影響を回避することにより、熱交換性能の向上と低騒音化を達成することができる車両用空気調和装置を提供することを目的とする。 The present invention has been made paying attention to the above problem, and when air is clean, it is possible to introduce highly clean air into the passenger compartment, and at the time of heat exchange, by avoiding the influence of ventilation resistance due to the air purifying filter, An object of the present invention is to provide a vehicle air conditioner that can achieve improved heat exchange performance and reduced noise.

上記目的を達成するため、本発明では、空気吸込み口を有する車室内パネルに空調ケースを取り付け、空調ケース内に空気清浄フィルタと送風ファンと熱交換器を有し、少なくとも空気清浄機能と熱交換機能を持たせた車両用空気調和装置において、
前記車室内パネルに清浄空気吐出口と熱交換空気吸込み口を兼用する吐出・吸込み兼用口を設定し、
空気清浄時、前記空気吸込み口から吸い込んだ車室内空気を、空気清浄フィルタと送風ファンを経過させて清浄空気とし、該清浄空気を前記吐出・吸込み兼用口から吐出させる空気清浄経路と、熱交換時、前記吐出・吸込み兼用口から吸い込んだ車室内空気を、送風ファンと熱交換器を経過させて熱交換空気とし、該熱交換空気を車室内に向けて設定した吹出し口から吹き出す熱交換経路と、を切り換える経路切り換え機構を設けたことを特徴とする。 In order to achieve the above object, according to the present invention, an air conditioning case is attached to a vehicle interior panel having an air suction port, an air cleaning filter, a blower fan, and a heat exchanger are provided in the air conditioning case, and at least an air cleaning function and heat exchange are provided. In a vehicle air conditioner having a function,
A discharge / suction combined port that combines a clean air discharge port and a heat exchange air intake port is set in the vehicle interior panel,
During air cleaning, the air in the passenger compartment that has been sucked in from the air suction port is passed through an air purifying filter and a blower fan to become clean air, and the air purifying route that discharges the clean air from the discharge / suction combined port and heat exchange When the vehicle interior air sucked from the discharge / suction port is passed through a blower fan and a heat exchanger to become heat exchange air, and the heat exchange path blows out the blowout port set toward the vehicle interior And a path switching mechanism for switching between.

よって、本発明の車両用空気調和装置にあっては、空気清浄時、経路切り換え機構により空気清浄経路に切り換えられ、空気吸込み口から吸い込んだ車室内空気が、空気清浄フィルタと送風ファンを経過して清浄空気とされ、この清浄空気が吐出・吸込み兼用口から吐出される。熱交換時、経路切り換え機構により熱交換経路に切り換えられ、吐出・吸込み兼用口から吸い込んだ車室内空気が、送風ファンと熱交換器を経過して熱交換空気とされ、この熱交換空気が車室内に向けて設定した吹出し口から吹き出される。
すなわち、本発明は、車室内パネルに清浄空気吐出口と熱交換空気吸込み口を兼用する吐出・吸込み兼用口を新たに設定する構成を採用した。
このため、空気清浄経路は、空気吸込み口→空気清浄フィルタ→送風ファン→吐出・吸込み兼用口となり、従来技術のように、空気清浄時に熱交換器を経過することがなく、清浄性の高い空気を車室内に導入できる。
また、熱交換経路は、吐出・吸込み兼用口→送風ファン→熱交換器→吹出し口となり、同じ吸い込み口を用いるバイパス経路とは異なり、空気吸込み口とは別の吐出・吸込み兼用口から直接、送風ファンの吸い込み口へ導入する経路となる。このため、経路中における空気清浄フィルタの介在が無く、吸込み空気のうち僅か一部の空気が送風ファンの負圧により導入されることがあっても、空気清浄フィルタによる通気抵抗の影響が回避される。これに伴い、熱交換器では効果的に熱交換ができるし、通気抵抗の高い空気清浄フィルタを吸込み空気が通過するときの騒音発生も抑えられる。
この結果、空気清浄時、清浄性の高い空気を車室内に導入できると共に、熱交換時、空気清浄フィルタによる通気抵抗の影響を回避することにより、熱交換性能の向上と低騒音化を達成することができる。 Therefore, in the vehicle air conditioner of the present invention, when the air is cleaned, the path switching mechanism switches to the air cleaning path, and the vehicle interior air sucked from the air suction port passes through the air cleaning filter and the blower fan. Clean air is discharged from the discharge / suction port. At the time of heat exchange, the route switching mechanism switches to the heat exchange route, and the cabin air sucked from the discharge / suction port is passed through the blower fan and the heat exchanger to become heat exchange air. It is blown out from the outlet set for the room.
That is, the present invention employs a configuration in which a discharge / suction combined port that serves both as a clean air discharge port and a heat exchange air suction port is newly set in the vehicle interior panel.
For this reason, the air purification path is air intake port → air purification filter → blower fan → discharge / suction port, and air is highly purified without passing through the heat exchanger during air purification as in the prior art. Can be introduced into the passenger compartment.
Also, the heat exchange path is the discharge / suction combined port → blower fan → heat exchanger → blowout port, and unlike the bypass route using the same suction port, directly from the discharge / suction combined port different from the air suction port, It becomes the path | route introduced into the inlet of a ventilation fan. For this reason, even if there is no air purification filter in the path and only a part of the intake air is introduced by the negative pressure of the blower fan, the influence of the ventilation resistance by the air purification filter is avoided. The Accordingly, the heat exchanger can exchange heat effectively, and noise generation when the intake air passes through the air purifying filter having high ventilation resistance can be suppressed.
As a result, it is possible to introduce highly clean air into the passenger compartment during air cleaning, and at the time of heat exchange, avoid the influence of ventilation resistance due to the air cleaning filter, thereby achieving improved heat exchange performance and lower noise. be able to.

以下、本発明の車両用空気調和装置を実現する最良の形態を、図面に示す実施例１〜実施例３に基づいて説明する。 Hereinafter, the best mode for realizing the vehicle air conditioner of the present invention will be described based on Examples 1 to 3 shown in the drawings.

まず、構成を説明する。
図１は実施例１のリア空調ユニットR/AU1（車両用空気調和装置の一例）が適用された車両の概略側面図である。図２は実施例１のリア空調ユニットR/AU1が適用された車両の車室内を示す平面図である。図３は実施例１のリア空調ユニットR/AU1の全体構成を示す縦断面図である。 First, the configuration will be described.
FIG. 1 is a schematic side view of a vehicle to which a rear air conditioning unit R / AU1 (an example of a vehicle air conditioner) according to a first embodiment is applied. FIG. 2 is a plan view showing the interior of the vehicle to which the rear air conditioning unit R / AU1 of the first embodiment is applied. FIG. 3 is a longitudinal sectional view showing the overall configuration of the rear air conditioning unit R / AU1 of the first embodiment.

実施例１におけるリア空調ユニットR/AU1は、図１〜図３に示すように、リアトレイパネル１（車室内パネル）と、空調ケース２と、空気清浄フィルタ３と、送風ファン４と、ブロワモータ５と、空気吸い込み口６と、吐出・吸込み兼用口７と、吐出・吸込み切り換えドア８（経路切り換え機構）と、空気清浄・熱交換切り換えドア９（経路切り換え機構）と、冷房用熱交換器１０（熱交換器）と、リアクーラ吐出口１１と、シール材１２と、リアクーラダクト１５と、リアクーラ吹出し口１６と、を備えている。 The rear air conditioning unit R / AU1 in the first embodiment includes a rear tray panel 1 (vehicle interior panel), an air conditioning case 2, an air cleaning filter 3, a blower fan 4, and a blower motor 5, as shown in FIGS. An air suction port 6, a discharge / suction combination port 7, a discharge / suction switching door 8 (path switching mechanism), an air cleaning / heat exchange switching door 9 (path switching mechanism), and a cooling heat exchanger 10 (Heat exchanger), a rear cooler discharge port 11, a sealing material 12, a rear cooler duct 15, and a rear cooler outlet 16 are provided.

実施例１のリア空調ユニットR/AU1は、図１及び図２に示すように、車室内後部のリアトレイパネル１の下部位置に配置され、リア空気清浄機能とリアクーラ機能を発揮する。
リア空気清浄機能は、空気吸い込み口６から吸い込んだ車室内空気を清浄空気とし、吐出・吸込み兼用口７から車室内へ吐出することで達成される。
リアクーラ機能は、主として吐出・吸込み兼用口７から吸い込んだ空気を熱交換により冷却し、リアクーラ吐出口１１に接続された左右一対のリアクーラダクト１５，１５を天井の両側部に向かって延ばし、後席の斜め上方位置に設定したリアクーラ吹出し口１６，１６から後席の乗員に向かって吹き出すことで達成される。なお、リアクーラ吹出し口１６は、天井の中央部やピラー部に設定するようにしても良い。 As shown in FIGS. 1 and 2, the rear air conditioning unit R / AU1 according to the first embodiment is disposed at a lower position of the rear tray panel 1 at the rear of the vehicle interior, and exhibits a rear air cleaning function and a rear cooler function.
The rear air purifying function is achieved by making the air in the vehicle interior sucked from the air suction port 6 into clean air and discharging it into the vehicle interior from the discharge / suction port 7.
The rear cooler function mainly cools the air sucked from the discharge / suction port 7 by heat exchange, and extends the pair of left and right rear cooler ducts 15 and 15 connected to the rear cooler discharge port 11 toward both sides of the ceiling. This is achieved by blowing from the rear cooler outlets 16, 16 set obliquely above the seat toward the rear seat passenger. The rear cooler outlet 16 may be set at the center or pillar of the ceiling.

実施例１のリア空調ユニットR/AU1は、空気吸込み口６を有するリアトレイパネル１にシール材１２を介して空調ケース２を取り付け、空調ケース２内に空気清浄フィルタ３と送風ファン４と冷房用熱交換器１０を有し、リア空気清浄機能とリアクーラ機能を持たせたものである。 In the rear air conditioning unit R / AU1 of the first embodiment, an air conditioning case 2 is attached to a rear tray panel 1 having an air suction port 6 via a sealing material 12, and an air purifying filter 3, a blower fan 4, and a cooling fan are installed in the air conditioning case 2. It has a heat exchanger 10 and has a rear air cleaning function and a rear cooler function.

前記空調ケース２は、空気吸込み口６の直下位置に空気清浄フィルタ３を取り付けるフィルタケース部２ａと、空気清浄フィルタ３の直下位置に送風ファン４を取り付けると共に、ファンケーシング部分を横方向に延長し、通路面積を拡大した位置に冷房用熱交換器１０を取り付けるユニットケース部２ｂと、を有して構成される。 The air conditioning case 2 has a filter case portion 2a for attaching the air purifying filter 3 directly below the air suction port 6, a blower fan 4 attached to the position immediately below the air purifying filter 3, and the fan casing portion extending in the lateral direction. And a unit case portion 2b to which the cooling heat exchanger 10 is attached at a position where the passage area is enlarged.

そして、空気清浄フィルタ３と送風ファン４は、空気吸込み口６の下流側の空気吸込み軸線Ｌ上に、フィルタ出口面とファン吸入口の間に空気導入隙間Ｓを持たせた離間配置とされる。 The air purifying filter 3 and the blower fan 4 are separated from each other on the air suction axis L on the downstream side of the air suction port 6 with an air introduction gap S between the filter outlet surface and the fan suction port. .

前記吐出・吸込み兼用口７は、図３に示すように、リアトレイパネル１の空気吸込み口６と隣接する位置に開口配置され、空位清浄時に清浄空気を吐出する清浄空気吐出口と、クーラ時に熱交換空気を吸い込む熱交換空気吸込み口を兼用する。 As shown in FIG. 3, the discharge / suction port 7 has an opening disposed at a position adjacent to the air suction port 6 of the rear tray panel 1, and a clean air discharge port that discharges clean air when the empty space is clean, Also serves as a heat exchange air suction port for sucking exchange air.

前記吐出・吸込み切り換えドア８は、図３に示すように、吐出・吸込み兼用口７の直下位置のユニットケース部２ｂに配置され、空気吸込み口６側の端部を回動軸とするドアである。この吐出・吸込み切り換えドア８は、送風ファン４の吐出側と吐出・吸込み兼用口７を連通する第１位置（図３の仮想線位置）と、吐出・吸込み兼用口７と送風ファン４の吸入側を連通する第２位置（図３の実線位置）を切り換える。なお、吐出・吸込み切り換えドア８は、図外のドアアクチュエータを有し、ドアアクチュエータにより第１位置と第２位置の開閉が制御される。 As shown in FIG. 3, the discharge / suction switching door 8 is a door that is disposed in the unit case portion 2b immediately below the discharge / suction port 7 and has an end portion on the air suction port 6 side as a rotation shaft. is there. The discharge / suction switching door 8 is connected to the discharge side of the blower fan 4 and the discharge / suction combination port 7 in the first position (the phantom line position in FIG. 3), and the discharge / suction combination port 7 and the suction of the blower fan 4 are connected. The second position (solid line position in FIG. 3) that communicates the sides is switched. The discharge / suction switching door 8 has a door actuator (not shown), and opening and closing of the first position and the second position is controlled by the door actuator.

前記空気清浄・熱交換切り換えドア９は、図３に示すように、吐出・吸込み切り換えドア８の直下位置のユニットケース部２ｂに配置され、空気吸込み口６側の端部を回動軸とするドアである。この空気清浄・熱交換切り換えドア９は、送風ファン４の吐出側と吐出・吸込み兼用口７を連通すると共に送風ファン４の吐出側と冷房用熱交換器１０を遮断する第１位置（図３の仮想線位置）と、送風ファン４の吐出側と冷房用熱交換器１０を連通する第２位置（図３の実線位置）を切り換える。なお、空気清浄・熱交換切り換えドア９は、図外のドアアクチュエータにより第１位置と第２位置の開閉が制御される。 As shown in FIG. 3, the air clean / heat exchange switching door 9 is disposed in the unit case portion 2 b immediately below the discharge / suction switching door 8, and the end on the air suction port 6 side is a rotation shaft. It is a door. The air cleaning / heat exchange switching door 9 communicates the discharge side of the blower fan 4 with the discharge / suction port 7 and also shuts off the discharge side of the blower fan 4 and the cooling heat exchanger 10 (FIG. 3). Imaginary line position) and a second position (solid line position in FIG. 3) that communicates the discharge side of the blower fan 4 and the cooling heat exchanger 10. The air clean / heat exchange switching door 9 is controlled to be opened and closed at a first position and a second position by a door actuator (not shown).

すなわち、実施例１のリア空調ユニットR/AU1は、経路切り換え機構である吐出・吸込み切り換えドア８と空気清浄・熱交換切り換えドア９により、空気清浄時、空気吸込み口６から吸い込んだ車室内空気を、空気清浄フィルタ３と送風ファン４を経過させて清浄空気とし、該清浄空気を吐出・吸込み兼用口７から吐出させる空気清浄経路と、クーラ時、吐出・吸込み兼用口７から吸い込んだ車室内空気を、送風ファン４と冷房用熱交換器１０を経過させて熱交換空気とし、該熱交換空気を車室内に向けて設定したリアクーラ吹出し口１６から吹き出す熱交換経路と、を切り換える。 That is, the rear air-conditioning unit R / AU1 of the first embodiment uses the discharge / suction switching door 8 and the air cleaning / heat exchange switching door 9 which are path switching mechanisms, and the vehicle interior air sucked from the air suction port 6 during air cleaning. Is passed through the air purifying filter 3 and the blower fan 4 to form clean air, and the clean air is discharged from the discharge / suction port 7 and the vehicle interior that is sucked from the discharge / suction port 7 at the time of cooling. The air is passed through the blower fan 4 and the cooling heat exchanger 10 to become heat exchange air, and the heat exchange path for blowing out the heat exchange air from the rear cooler outlet 16 set toward the vehicle interior is switched.

次に、作用を説明する。
図４は実施例１のリア空調ユニットR/AU1による空気清浄時の作用説明図である。図５は実施例１のリア空調ユニットR/AU1によるクーラ時の作用説明図である。以下、［空気清浄時］と［クーラ時］の作用を説明する。 Next, the operation will be described.
FIG. 4 is an operation explanatory diagram of the air conditioning performed by the rear air conditioning unit R / AU1 according to the first embodiment. FIG. 5 is an operation explanatory diagram of the air conditioning by the rear air conditioning unit R / AU1 according to the first embodiment. Hereinafter, the operation of [at the time of air cleaning] and [at the time of cooler] will be described.

［空気清浄時］
空気清浄時、図４に示すように、吐出・吸込み切り換えドア８が第１位置とされ、空気清浄・熱交換切り換えドア９が第１位置とされ、空気清浄経路に切り換えられる。
したがって、図４の矢印に示すように、空気吸込み口６から吸い込んだ車室内空気が、空気清浄フィルタ３と送風ファン４を経過して清浄空気とされ、この清浄空気が吐出・吸込み兼用口７から車室内へ吐出される。 [When clean air]
At the time of air cleaning, as shown in FIG. 4, the discharge / suction switching door 8 is set to the first position, and the air cleaning / heat exchange switching door 9 is set to the first position to be switched to the air cleaning path.
Therefore, as shown by the arrow in FIG. 4, the vehicle interior air sucked from the air suction port 6 passes through the air cleaning filter 3 and the blower fan 4 to become clean air, and this clean air is discharged / suctioned combined port 7. Is discharged into the passenger compartment.

すなわち、リアトレイパネル１に清浄空気吐出口と熱交換空気吸込み口を兼用する吐出・吸込み兼用口７を新たに設定する構成を採用した。
このため、空気清浄経路は、空気吸込み口６→空気清浄フィルタ３→送風ファン４→吐出・吸込み兼用口７となり、従来技術のように、空気清浄時に熱交換器を経過することがなく、清浄性の高い空気を車室内に導入できる。 That is, the rear tray panel 1 has a configuration in which a discharge / suction port 7 that serves both as a clean air discharge port and a heat exchange air suction port is newly set.
For this reason, the air cleaning path is the air suction port 6 → the air cleaning filter 3 → the blower fan 4 → the discharge / suction combined port 7, and it does not pass through the heat exchanger at the time of air cleaning as in the prior art. High quality air can be introduced into the passenger compartment.

［クーラ時］
クーラ時、図５に示すように、吐出・吸込み切り換えドア８が第２位置とされ、空気清浄・熱交換切り換えドア９が第２位置とされ、クーラ経路に切り換えられる。
したがって、図５の矢印に示すように、吐出・吸込み兼用口７から吸い込んだ車室内空気が、空気導入隙間Ｓから送風ファン４と冷房用熱交換器１０を経過して熱交換により冷風とされ、この冷風が車室内に向けて設定したリアクーラ吹出し口１６，１６から吹き出される。 [Cooler]
At the time of the cooler, as shown in FIG. 5, the discharge / suction switching door 8 is set to the second position, and the air cleaning / heat exchange switching door 9 is set to the second position to switch to the cooler path.
Therefore, as shown by the arrows in FIG. 5, the vehicle interior air sucked from the discharge / suction port 7 passes through the air introduction gap S through the blower fan 4 and the cooling heat exchanger 10 to be cooled by heat exchange. The cold air is blown out from the rear cooler outlets 16 and 16 set toward the vehicle interior.

すなわち、リアトレイパネル１に清浄空気吐出口と熱交換空気吸込み口を兼用する吐出・吸込み兼用口７を新たに設定する構成を採用した。
このため、クーラ経路は、吐出・吸込み兼用口７→送風ファン４→冷房用熱交換器１０→リアクーラ吹出し口１６となり、同じ吸い込み口を用いるバイパス経路とは異なり、空気吸込み口６とは別の吐出・吸込み兼用口７から直接、送風ファン４の吸い込み口へ導入する経路となる。 That is, the rear tray panel 1 has a configuration in which a discharge / suction port 7 that serves both as a clean air discharge port and a heat exchange air suction port is newly set.
For this reason, the cooler path is the discharge / suction combined port 7 → the blower fan 4 → the cooling heat exchanger 10 → the rear cooler outlet 16, which is different from the bypass path using the same suction port and is different from the air suction port 6. This is a route for direct introduction from the discharge / suction port 7 to the suction port of the blower fan 4.

よって、クーラ経路中における空気清浄フィルタ３の介在が無く、吸込み空気のうち僅か一部の空気が送風ファン４の負圧により導入されることがあっても、吸込み空気の大半は通気抵抗がほとんどゼロに等しい吐出・吸込み兼用口７からの導入となり、空気清浄フィルタ３による通気抵抗の影響が回避される。 Therefore, even if there is no air purifying filter 3 in the cooler path and only a part of the intake air is introduced by the negative pressure of the blower fan 4, most of the intake air has almost no ventilation resistance. The introduction from the discharge / suction port 7 equal to zero is avoided, and the influence of the ventilation resistance by the air cleaning filter 3 is avoided.

これに伴い、冷房用熱交換器１０では、風量が十分に確保されることで、効果的に熱交換ができてクーラ性能が向上するし、通気抵抗の高い空気清浄フィルタ３を吸込み空気が通過するときの騒音発生も抑えられ、車室の静粛性が確保される。 Along with this, in the heat exchanger 10 for cooling, by ensuring a sufficient air volume, heat can be effectively exchanged and the cooler performance is improved, and the intake air passes through the air purifying filter 3 having high ventilation resistance. Noise generation is also suppressed, and the quietness of the passenger compartment is ensured.

次に、効果を説明する。
実施例１のリア空調ユニットR/AU1にあっては、下記に列挙する効果を得ることができる。 Next, the effect will be described.
In the rear air conditioning unit R / AU1 of the first embodiment, the effects listed below can be obtained.

(1) 空気吸込み口６を有する車室内パネルに空調ケース２を取り付け、空調ケース２内に空気清浄フィルタ３と送風ファン４と熱交換器を有し、少なくとも空気清浄機能と熱交換機能を持たせた車両用空気調和装置において、前記車室内パネルに清浄空気吐出口と熱交換空気吸込み口を兼用する吐出・吸込み兼用口７を設定し、空気清浄時、前記空気吸込み口６から吸い込んだ車室内空気を、空気清浄フィルタ３と送風ファン４を経過させて清浄空気とし、該清浄空気を前記吐出・吸込み兼用口７から吐出させる空気清浄経路と、熱交換時、前記吐出・吸込み兼用口７から吸い込んだ車室内空気を、送風ファン４と熱交換器を経過させて熱交換空気とし、該熱交換空気を車室内に向けて設定した吹出し口から吹き出す熱交換経路と、を切り換える経路切り換え機構を設けたため、空気清浄時、清浄性の高い空気を車室内に導入できると共に、熱交換時、空気清浄フィルタ３による通気抵抗の影響を回避することにより、熱交換性能の向上と低騒音化を達成することができる。 (1) The air conditioning case 2 is attached to the vehicle interior panel having the air suction port 6, and the air conditioning case 2 has the air purification filter 3, the blower fan 4, and the heat exchanger, and has at least an air purification function and a heat exchange function. In the vehicle air conditioner, the vehicle interior panel is provided with a discharge / suction port 7 which serves both as a clean air discharge port and a heat exchange air suction port, and the vehicle sucked from the air suction port 6 during air cleaning. The indoor air is passed through the air cleaning filter 3 and the blower fan 4 to become clean air, and the clean air is discharged from the discharge / suction port 7 and the heat / exchange port 7 is the discharge / suction port 7. The vehicle interior air sucked in from the air is changed into a heat exchange air that passes through the blower fan 4 and the heat exchanger and becomes a heat exchange air, and the heat exchange air is blown out from a blowout port set toward the vehicle interior. In order to improve the heat exchange performance, it is possible to introduce highly clean air into the passenger compartment during air cleaning and avoid the influence of ventilation resistance due to the air cleaning filter 3 during heat exchange. Low noise can be achieved.

(2) 前記経路切り換え機構は、前記送風ファン４の吐出側と前記吐出・吸込み兼用口７を連通する第１位置と、前記吐出・吸込み兼用口７と前記送風ファン４の吸入側を連通する第２位置を切り換える吐出・吸込み切り換えドア８と、前記送風ファン４の吐出側と前記吐出・吸込み兼用口７を連通すると共に前記送風ファン４の吐出側と前記熱交換器を遮断する第１位置と、前記送風ファン４の吐出側と前記熱交換器を連通する第２位置を切り換える空気清浄・熱交換切り換えドア９と、を有するため、２つの切り換えドア８，９によるドア位置切り換え操作のみにより、空気清浄経路と熱交換経路との切り換えを行うことができる。 (2) The path switching mechanism communicates the first position where the discharge side of the blower fan 4 communicates with the discharge / suction port 7 and the discharge / suction port 7 communicates with the suction side of the blower fan 4. A discharge / suction switching door 8 for switching the second position, the discharge side of the blower fan 4 and the discharge / suction port 7 are communicated with each other, and the discharge position of the blower fan 4 and the heat exchanger are shut off. And an air cleaning / heat exchange switching door 9 for switching the second position where the discharge side of the blower fan 4 and the heat exchanger communicate with each other, only by the door position switching operation by the two switching doors 8 and 9. Switching between the air cleaning path and the heat exchange path can be performed.

(3) 前記空気清浄フィルタ３と前記送風ファン４は、前記空気吸込み口６の下流側の空気吸込み軸線Ｌ上に、フィルタ出口面とファン吸入口の間に空気導入隙間Ｓを持たせた離間配置としたため、熱交換時、吐出・吸込み兼用口７から吸い込んだ車室内空気を、通気抵抗を最小に抑えて送風ファン４の吸い込み口へ導入することができる。 (3) The air purifying filter 3 and the blower fan 4 are separated on the air suction axis L on the downstream side of the air suction port 6 with an air introduction gap S between the filter outlet surface and the fan suction port. Due to the arrangement, during the heat exchange, the vehicle interior air sucked from the discharge / suction port 7 can be introduced into the suction port of the blower fan 4 while minimizing the airflow resistance.

(4) 前記空気吸込み口６と吐出・吸込み兼用口７を有する車室内パネルは、車室内後部のリアトレイパネル１であり、前記熱交換器は、冷房用熱交換器１０であり、前記吹出し口は、リアクーラ吹出し口１６であり、空調機能として、リア空気清浄機能とリアクーラ機能を持たせたため、高い車室内空気清浄性能と高いリアクーラ性能と低騒音性能を併せて発揮するリア空調ユニットR/AU1を提供することができる。 (4) The vehicle interior panel having the air suction port 6 and the discharge / suction port 7 is the rear tray panel 1 at the rear of the vehicle interior, the heat exchanger is the cooling heat exchanger 10, and the air outlet Is a rear cooler outlet 16 and has a rear air purifying function and a rear cooler function as an air conditioning function, so that the rear air conditioning unit R / AU1 that exhibits both high air conditioning performance, high rear cooler performance and low noise performance Can be provided.

実施例２は、実施例１のリア空気清浄機能とリアクーラ機能に、リア換気機能を追加した例である。 The second embodiment is an example in which a rear ventilation function is added to the rear air cleaning function and the rear cooler function of the first embodiment.

まず、構成を説明する。
図６は実施例２のリア空調ユニットR/AU2（車両用空気調和装置の一例）の全体構成を示す縦断面図である。 First, the configuration will be described.
FIG. 6 is a longitudinal sectional view showing an overall configuration of a rear air conditioning unit R / AU2 (an example of a vehicle air conditioner) according to a second embodiment.

実施例２におけるリア空調ユニットR/AU2は、図６に示すように、リアトレイパネル１（車室内パネル）と、空調ケース２と、空気清浄フィルタ３と、送風ファン４と、ブロワモータ５と、空気吸い込み口６と、吐出・吸込み兼用口７と、吐出・吸込み切り換えドア８（経路切り換え機構）と、空気清浄・熱交換切り換えドア９（経路切り換え機構）と、冷房用熱交換器１０（熱交換器）と、リアクーラ吐出口１１と、シール材１２と、換気切り換えドア１３（経路切り換え機構）と、換気口１４と、を備えている。 As shown in FIG. 6, the rear air conditioning unit R / AU2 in the second embodiment includes a rear tray panel 1 (vehicle interior panel), an air conditioning case 2, an air cleaning filter 3, a blower fan 4, a blower motor 5, and air. Suction port 6, discharge / suction combination port 7, discharge / suction switching door 8 (path switching mechanism), air cleaning / heat exchange switching door 9 (path switching mechanism), and cooling heat exchanger 10 (heat exchange) Device), a rear cooler discharge port 11, a sealing material 12, a ventilation switching door 13 (path switching mechanism), and a ventilation port 14.

実施例２のリア空調ユニットR/AU2は、図６に示すように、車室内後部のリアトレイパネル１の下部位置に配置され、リア空気清浄機能とリアクーラ機能とリア換気機能を発揮する。３つの機能のうち、リア空気清浄機能とリアクーラ機能については、実施例１と同様である。リア換気機能は、主として吐出・吸込み兼用口７から吸い込んだ車室内空気を、換気口１４からリアトランクルームに向かって排出することで達成される。 As shown in FIG. 6, the rear air conditioning unit R / AU2 of the second embodiment is disposed at a lower position of the rear tray panel 1 at the rear of the vehicle interior and exhibits a rear air cleaning function, a rear cooler function, and a rear ventilation function. Of the three functions, the rear air cleaning function and the rear cooler function are the same as in the first embodiment. The rear ventilation function is achieved mainly by discharging the vehicle interior air sucked from the discharge / suction port 7 from the ventilation port 14 toward the rear trunk room.

前記換気切り換えドア１３は、図６に示すように、空気清浄・熱交換切り換えドア９と冷房用熱交換器１０の間の位置であって、ユニットケース部２ｂに下側内面位置に配置され、冷房用熱交換器１０側の端部を回動軸とするドアである。この換気切り換えドア１３は、換気口１４を遮断し、送風ファン４の吐出側と冷房用熱交換器１０を連通する第１位置（図６の実線位置）と、換気口１４を送風ファン４の吐出側と連通し、送風ファン４の吐出側と冷房用熱交換器１０を遮断する第２位置（図６の仮想線位置）を切り換える。なお、換気切り換えドア１３は、図外のドアアクチュエータを有し、ドアアクチュエータにより第１位置と第２位置の開閉が制御される。 As shown in FIG. 6, the ventilation switching door 13 is located between the air cleaning / heat exchange switching door 9 and the cooling heat exchanger 10, and is disposed on the lower inner surface of the unit case portion 2 b. This is a door having an end on the cooling heat exchanger 10 side as a rotation axis. The ventilation switching door 13 blocks the ventilation port 14, communicates the discharge side of the blower fan 4 with the cooling heat exchanger 10 (solid line position in FIG. 6), and connects the ventilation port 14 to the blower fan 4. The second position (the phantom line position in FIG. 6) that communicates with the discharge side and shuts off the discharge side of the blower fan 4 and the cooling heat exchanger 10 is switched. The ventilation switching door 13 has a door actuator (not shown), and opening and closing of the first position and the second position is controlled by the door actuator.

すなわち、実施例２のリア空調ユニットR/AU2は、実施例１と同様に、空気清浄時の空気清経路とクーラ時の熱交換経路の切り換えに加え、換気時、吐出・吸込み兼用口７から吸い込んだ車室内空気を、送風ファン４を経過させて換気口１４から車室外に吹き出す換気経路を切り換える。なお、他の構成は、実施例１と同様であるので、対応する構成に同一符号を付して説明を省略する。 That is, the rear air conditioning unit R / AU2 of the second embodiment is similar to the first embodiment, in addition to switching between the air purifying path during air cleaning and the heat exchange path during cooling, and from the discharge / suction port 7 during ventilation. The ventilation path in which the sucked vehicle interior air is blown out of the vehicle interior through the ventilation port 14 through the ventilation fan 4 is switched. Since other configurations are the same as those of the first embodiment, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

次に、作用を説明する。
図７は実施例２のリア空調ユニットR/AU2による空気清浄時の作用説明図である。図８は実施例２のリア空調ユニットR/AU2による換気時の作用説明図である。図９は実施例２のリア空調ユニットR/AU2によるクーラ時の作用説明図である。以下、［空気清浄時］と［換気時］と［クーラ時］の作用を説明する。 Next, the operation will be described.
FIG. 7 is an explanatory diagram of the action during air cleaning by the rear air conditioning unit R / AU2 of the second embodiment. FIG. 8 is an explanatory diagram of the action during ventilation by the rear air conditioning unit R / AU2 of the second embodiment. FIG. 9 is an operation explanatory diagram of the air conditioning by the rear air conditioning unit R / AU2 according to the second embodiment. Hereinafter, the operation of [at the time of air cleaning], [at the time of ventilation], and [at the time of cooler] will be described.

［空気清浄時］
空気清浄時、図７に示すように、吐出・吸込み切り換えドア８が第１位置とされ、空気清浄・熱交換切り換えドア９が第１位置とされ、換気切り換えドア１３が第１位置あるいは第２位置とされ、空気清浄経路に切り換えられる。
したがって、図７の矢印に示すように、空気吸込み口６から吸い込んだ車室内空気が、空気清浄フィルタ３と送風ファン４を経過して清浄空気とされ、この清浄空気が吐出・吸込み兼用口７から車室内へ吐出される。 [When clean air]
At the time of air cleaning, as shown in FIG. 7, the discharge / suction switching door 8 is set to the first position, the air cleaning / heat exchange switching door 9 is set to the first position, and the ventilation switching door 13 is set to the first position or the second position. Position and switched to the air cleaning path.
Therefore, as shown by the arrow in FIG. 7, the cabin air sucked from the air suction port 6 passes through the air cleaning filter 3 and the blower fan 4 to become clean air, and this clean air is discharged / sucked together. Is discharged into the passenger compartment.

［換気時］
換気時、図８に示すように、吐出・吸込み切り換えドア８が第２位置とされ、空気清浄・熱交換切り換えドア９が第２位置とされ、換気切り換えドア１３が第２位置とされ、換気経路に切り換えられる。
したがって、図８の矢印に示すように、吐出・吸込み兼用口７から吸い込んだ車室内空気が、空気導入隙間Ｓから送風ファン４と冷房用熱交換器１０を経過し、この車室内空気がリアトランクルームに向けて設定した換気口１４から排出される。 [Ventilation]
At the time of ventilation, as shown in FIG. 8, the discharge / suction switching door 8 is set to the second position, the air cleaning / heat exchange switching door 9 is set to the second position, and the ventilation switching door 13 is set to the second position. Switch to a route.
Therefore, as shown by the arrows in FIG. 8, the vehicle interior air sucked from the discharge / suction port 7 passes through the blower fan 4 and the cooling heat exchanger 10 from the air introduction gap S, and this vehicle interior air is transferred to the rear. It is discharged from the ventilation port 14 set toward the trunk room.

すなわち、リアトレイパネル１に清浄空気吐出口と熱交換空気吸込み口を兼用する吐出・吸込み兼用口７を新たに設定する構成を採用した。
このため、換気経路は、吐出・吸込み兼用口７→送風ファン４→換気口１４となり、空気吸込み口６とは別の吐出・吸込み兼用口７から直接、送風ファン４の吸い込み口へ導入する経路となる。 That is, the rear tray panel 1 has a configuration in which a discharge / suction port 7 that serves both as a clean air discharge port and a heat exchange air suction port is newly set.
For this reason, the ventilation route is the discharge / suction combined port 7 → the blower fan 4 → the ventilation port 14, and the route is introduced directly from the discharge / suction combined port 7 different from the air suction port 6 to the suction port of the blower fan 4. It becomes.

よって、換気経路中における空気清浄フィルタ３の介在が無く、吸込み空気のうち僅か一部の空気が送風ファン４の負圧により導入されることがあっても、吸込み空気の大半は通気抵抗がほとんどゼロに等しい吐出・吸込み兼用口７からの導入となり、空気清浄フィルタ３による通気抵抗の影響が回避される。 Therefore, even if there is no air purifying filter 3 in the ventilation path and only a part of the intake air is introduced by the negative pressure of the blower fan 4, most of the intake air has almost no airflow resistance. The introduction from the discharge / suction port 7 equal to zero is avoided, and the influence of the ventilation resistance by the air cleaning filter 3 is avoided.

これに伴い、換気時、通気抵抗の高い空気清浄フィルタ３を吸込み空気が通過するときの騒音発生も抑えられ、車室の静粛性が確保される。 Accordingly, during ventilation, noise generation when the intake air passes through the air purifying filter 3 having high ventilation resistance is suppressed, and the quietness of the passenger compartment is ensured.

［クーラ時］
クーラ時、図９に示すように、吐出・吸込み切り換えドア８が第２位置とされ、空気清浄・熱交換切り換えドア９が第２位置とされ、換気切り換えドア１３が第１位置とされ、クーラ経路に切り換えられる。
したがって、図９の矢印に示すように、吐出・吸込み兼用口７から吸い込んだ車室内空気が、空気導入隙間Ｓから送風ファン４と冷房用熱交換器１０を経過して熱交換により冷風とされ、この冷風が車室内に向けて設定したリアクーラ吹出し口１６，１６から吹き出される。 [Cooler]
At the time of the cooler, as shown in FIG. 9, the discharge / suction switching door 8 is set to the second position, the air cleaning / heat exchange switching door 9 is set to the second position, and the ventilation switching door 13 is set to the first position. Switch to a route.
Therefore, as shown by the arrows in FIG. 9, the vehicle interior air sucked from the discharge / suction port 7 passes through the air introduction gap S through the blower fan 4 and the cooling heat exchanger 10 to be cooled by heat exchange. The cold air is blown out from the rear cooler outlets 16 and 16 set toward the vehicle interior.

次に、効果を説明する。
実施例２のリア空調ユニットR/AU2にあっては、実施例１の効果に加え、下記に列挙する効果を得ることができる。 Next, the effect will be described.
In the rear air conditioning unit R / AU2 of the second embodiment, the effects listed below can be obtained in addition to the effects of the first embodiment.

(5) 前記経路切り換え機構は、空気清浄時の空気清浄経路と熱交換時の熱交換経路の切り換えに加え、換気時、前記吐出・吸込み兼用口７から吸い込んだ車室内空気を、送風ファン４を経過させて換気口から車室外に吹き出す換気経路を切り換えるため、空気清浄時、清浄性の高い空気を車室内に導入できると共に、熱交換時、熱交換性能の向上と低騒音化を達成することができるのに加え、換気時、低騒音化を達成することができる。 (5) In addition to the switching of the air cleaning path during air cleaning and the heat exchange path during heat exchange, the path switching mechanism converts the air in the vehicle interior sucked from the discharge / suction port 7 during ventilation into the blower fan 4. Since the ventilation route that blows out from the passenger compartment through the ventilation port is switched after passing the air, highly clean air can be introduced into the passenger compartment during air purification, and at the same time, heat exchange performance is improved and noise is reduced during heat exchange. In addition to being able to reduce noise during ventilation.

(6) 前記空気経路切り換え機構は、前記換気口１４を遮断し、前記送風ファン４の吐出側と前記熱交換器を連通する第１位置と、前記換気口１４と前記送風ファン４の吐出側を連通し、前記送風ファン４の吐出側と前記熱交換器を遮断する第２位置を切り換える換気切り換えドア１３を有するため、３つの切り換えドア８，９，１３によるドア位置切り換え操作のみにより、空気清浄経路と熱交換経路と換気経路の切り換えを行うことができる。 (6) The air path switching mechanism shuts off the ventilation port, communicates the discharge side of the blower fan 4 with the heat exchanger, and the discharge side of the ventilation port and the blower fan 4. , And the ventilation switching door 13 for switching between the discharge side of the blower fan 4 and the second position for shutting off the heat exchanger, the air is switched only by the door position switching operation by the three switching doors 8, 9, 13. Switching between the clean path, heat exchange path and ventilation path can be performed.

(7) 前記空気吸込み口６と吐出・吸込み兼用口７を有する車室内パネルは、車室内後部のリアトレイパネル１であり、前記熱交換器は、冷房用熱交換器１０であり、前記吹出し口は、リアクーラ吹出し口１６であり、前記換気口１４は、リアトランクルームへの吹き出し口であり、空調機能として、リア空気清浄機能とリアクーラ機能とリア換気機能を持たせたため、高い車室内空気清浄性能と高いリアクーラ性能とクーラ時低騒音性能と換気時低騒音性能を併せて発揮するリア空調ユニットR/AU2を提供することができる。 (7) The vehicle interior panel having the air intake port 6 and the combined discharge / suction port 7 is a rear tray panel 1 at the rear of the vehicle interior, the heat exchanger is a cooling heat exchanger 10, and the outlet port Is a rear cooler outlet 16, and the ventilation port 14 is a outlet to the rear trunk room. As the air conditioning function, the rear air cleaner function, the rear cooler function, and the rear ventilation function are provided. It is possible to provide a rear air conditioning unit R / AU2 that exhibits high rear cooler performance, low noise performance during cooling, and low noise performance during ventilation.

実施例３は、実施例１，２ではリアトレイパネルに対し空気清浄フィルタを平行配置していたのに対し、リアトレイパネルに対し空気清浄フィルタを傾斜配置した例である。 The third embodiment is an example in which the air cleaning filter is disposed in parallel to the rear tray panel in the first and second embodiments, whereas the air cleaning filter is inclined to the rear tray panel.

まず、構成を説明する。
図１０は実施例３のリア空調ユニットR/AU3（車両用空気調和装置の一例）の全体構成を示す縦断面図である。 First, the configuration will be described.
FIG. 10 is a longitudinal sectional view showing the overall configuration of a rear air conditioning unit R / AU3 (an example of a vehicle air conditioner) according to a third embodiment.

実施例３におけるリア空調ユニットR/AU3は、図１０に示すように、リアトレイパネル１（車室内パネル）と、空調ケース２と、空気清浄フィルタ３と、送風ファン４と、ブロワモータ５と、空気吸い込み口６と、吐出・吸込み兼用口７と、吐出・吸込み切り換えドア８（経路切り換え機構）と、空気清浄・熱交換切り換えドア９（経路切り換え機構）と、冷房用熱交換器１０（熱交換器）と、リアクーラ吐出口１１と、シール材１２と、換気切り換えドア１３（経路切り換え機構）と、換気口１４と、を備えている。 As shown in FIG. 10, the rear air conditioning unit R / AU3 in the third embodiment includes a rear tray panel 1 (vehicle compartment panel), an air conditioning case 2, an air cleaning filter 3, a blower fan 4, a blower motor 5, and air. Suction port 6, discharge / suction combination port 7, discharge / suction switching door 8 (path switching mechanism), air cleaning / heat exchange switching door 9 (path switching mechanism), and cooling heat exchanger 10 (heat exchange) Device), a rear cooler discharge port 11, a sealing material 12, a ventilation switching door 13 (path switching mechanism), and a ventilation port 14.

実施例３のリア空調ユニットR/AU3は、図１０に示すように、空気清浄フィルタ３と送風ファン４は、フィルタ出口面とファン吸入口の間に空気導入隙間Ｓを持たせると共に、空気清浄フィルタ３を、吐出・吸込み兼用口７側の開口面積を反対側の開口面積より大きくする傾斜離間配置としている。なお、リアトレイパネル１の面を基準面としたとき、空気清浄フィルタ３は、傾斜角度θを持たせて配置され、空気導入隙間Ｓの拡大を図っている。なお、他の構成は、実施例１と同様であるので、対応する構成に同一符号を付して説明を省略する。 In the rear air conditioning unit R / AU3 of the third embodiment, as shown in FIG. 10, the air purifying filter 3 and the blower fan 4 have an air introduction gap S between the filter outlet surface and the fan suction port, and the air purifier. The filter 3 is arranged to be inclined and separated so that the opening area on the discharge / suction port 7 side is larger than the opening area on the opposite side. In addition, when the surface of the rear tray panel 1 is used as a reference surface, the air purifying filter 3 is arranged with an inclination angle θ to increase the air introduction gap S. Since other configurations are the same as those of the first embodiment, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

次に、作用を説明すると、吐出・吸込み兼用口７からの車室内空気を、送風ファン４の吸い込み口へ導入する「換気時」や「クーラ時」において、空気清浄フィルタ３のフィルタ出口面と送風ファン４のファン吸入口の間の空気導入隙間Ｓが拡大されることで、換気経路やクーラ経路の通気抵抗を、実施例２に比べ、さらに低減させることができる。そして、通気抵抗の低減に伴い、実施例２に比べ、リアクーラ性能とクーラ時低騒音性能と換気時低騒音性能をより高めることができる。 Next, the operation will be described. In the “ventilation” or “cooler” state in which the air in the passenger compartment from the discharge / suction port 7 is introduced into the suction port of the blower fan 4, By increasing the air introduction gap S between the fan intake ports of the blower fan 4, the ventilation resistance of the ventilation path and the cooler path can be further reduced as compared with the second embodiment. As the ventilation resistance is reduced, the rear cooler performance, the cooler low noise performance, and the ventilated low noise performance can be further enhanced as compared with the second embodiment.

次に、効果を説明する。
実施例３のリア空調ユニットR/AU3にあっては、実施例２の効果に加え、下記の効果を得ることができる。 Next, the effect will be described.
In the rear air conditioning unit R / AU3 of the third embodiment, in addition to the effects of the second embodiment, the following effects can be obtained.

(8) 前記空気清浄フィルタ３と前記送風ファン４は、フィルタ出口面とファン吸入口の間に空気導入隙間Ｓを持たせると共に、前記空気清浄フィルタ３を、吐出・吸込み兼用口７側の開口面積を反対側の開口面積より大きくする傾斜離間配置としたため、換気経路やクーラ経路の通気抵抗の低減に伴い、実施例２に比べ、リアクーラ性能とクーラ時低騒音性能と換気時低騒音性能をより高めることができる。 (8) The air cleaning filter 3 and the blower fan 4 have an air introduction gap S between the filter outlet surface and the fan suction port, and the air cleaning filter 3 is opened on the discharge / suction port 7 side. Since the area is larger than the opening area on the opposite side, the rear cooler performance, cooler low noise performance, and low noise performance during ventilation are reduced in comparison with the second embodiment due to the reduction in ventilation resistance of the ventilation path and cooler path. Can be increased.

以上、本発明の車両用空気調和装置を実施例１〜実施例３に基づき説明してきたが、具体的な構成については、これらの実施例に限られるものではなく、特許請求の範囲の各請求項に係る発明の要旨を逸脱しない限り、設計の変更や追加等は許容される。 As mentioned above, although the vehicle air conditioner of this invention has been demonstrated based on Example 1-3, it is not restricted to these Examples about a concrete structure, Each claim of a claim Design changes and additions are permitted without departing from the spirit of the invention according to the paragraph.

実施例１では、経路切り換え機構として、２つの回動ドアにより空気清浄経路と熱交換経路を切り換えるものを示し、実施例２，３では、経路切り換え機構として、３つの回動ドアにより空気清浄経路と熱交換経路と換気経路を切り換えるものを示した。
しかし、回動ドアに代え、スライドドアを用いた構造や、回動ドアとスライドドアを組み合わせた構造やダクト変位構造等を用いて経路切り換え機構を構成しても良い。
要するに、車室内パネルに清浄空気吐出口と熱交換空気吸込み口を兼用する吐出・吸込み兼用口を設定し、空気清浄時、空気吸込み口から吸い込んだ車室内空気を、空気清浄フィルタと送風ファンを経過させて清浄空気とし、該清浄空気を吐出・吸込み兼用口から吐出させる空気清浄経路と、熱交換時、吐出・吸込み兼用口から吸い込んだ車室内空気を、送風ファンと熱交換器を経過させて熱交換空気とし、該熱交換空気を車室内に向けて設定した吹出し口から吹き出す熱交換経路と、を切り換える経路切り換え機構を設けたものであれば本発明に含まれる。 In the first embodiment, a path switching mechanism that switches between an air cleaning path and a heat exchange path by two rotating doors is shown. In the second and third embodiments, an air cleaning path by three rotating doors as a path switching mechanism. And the one that switches between heat exchange path and ventilation path is shown.
However, the path switching mechanism may be configured using a structure using a sliding door, a structure combining a rotating door and a sliding door, a duct displacement structure, or the like instead of the rotating door.
In short, a discharge / suction combined port that combines the clean air discharge port and the heat exchange air intake port is set on the vehicle interior panel, and when cleaning the air, the vehicle interior air sucked from the air intake port is removed by using the air purification filter and the blower fan. Let the air flow to clean air and let the clean air be discharged from the discharge / suction port, and the air in the passenger compartment that has been sucked from the discharge / suction port at the time of heat exchange passes through the blower fan and heat exchanger. The present invention includes any switching mechanism that switches between heat exchange air and a heat exchange path that blows out the heat exchange air from a blowout port set toward the passenger compartment.

実施例１では、リア空気清浄機能とリアクーラ機能を持たせたリア空調ユニットR/AU1を示し、実施例２，３では、リア空気清浄機能とリアクーラ機能とリア換気機能を持たせたリア空調ユニットR/AU2,R/AU3の例を示した。しかし、前席側でのフロント空調ユニットとしても適用できるし、また、大型車両の場合は、前席と後席の中間席のセンター空調ユニットとしても適用できる。さらに、熱交換機能としては、クーラ機能に限らず、暖房機能を持たせたものや冷暖房機能を持たせたものや除湿機能を持たせたもの等であっても良い。要するに、空気吸込み口を有する車室内パネルに空調ケースを取り付け、空調ケース内に空気清浄フィルタと送風ファンと熱交換器を有し、少なくとも空気清浄機能と熱交換機能を持たせた車両用空気調和装置に適用することができる。 The first embodiment shows a rear air conditioning unit R / AU1 having a rear air cleaning function and a rear cooler function, and the second and third embodiments have a rear air conditioning unit having a rear air cleaning function, a rear cooler function, and a rear ventilation function. An example of R / AU2, R / AU3 is shown. However, it can also be applied as a front air conditioning unit on the front seat side, and in the case of a large vehicle, it can also be applied as a center air conditioning unit for an intermediate seat between the front seat and the rear seat. Further, the heat exchange function is not limited to the cooler function, and may be a function having a heating function, a function having a cooling / heating function, a function having a dehumidifying function, or the like. In short, an air conditioning case is attached to a vehicle interior panel having an air inlet, an air conditioning filter, a blower fan, and a heat exchanger are installed in the air conditioning case, and at least an air conditioning function for air purification and heat exchange is provided. It can be applied to the device.

実施例１のリア空調ユニットR/AU1（車両用空気調和装置の一例）が適用された車両の概略側面図である。1 is a schematic side view of a vehicle to which a rear air conditioning unit R / AU1 (an example of a vehicle air conditioner) according to a first embodiment is applied. 実施例１のリア空調ユニットR/AU1が適用された車両の車室内を示す平面図である。It is a top view which shows the vehicle interior of the vehicle to which the rear air conditioning unit R / AU1 of Example 1 was applied. 実施例１のリア空調ユニットR/AU1の全体構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the whole structure of the rear air conditioning unit R / AU1 of Example 1. FIG. 実施例１のリア空調ユニットR/AU1による空気清浄時の作用説明図である。It is action | operation explanatory drawing at the time of the air cleaning by the rear air conditioning unit R / AU1 of Example 1. FIG. 実施例１のリア空調ユニットR/AU1によるクーラ時の作用説明図である。It is action | operation explanatory drawing at the time of the cooler by the rear air conditioning unit R / AU1 of Example 1. FIG. 実施例２のリア空調ユニットR/AU2（車両用空気調和装置の一例）の全体構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the whole structure of the rear air conditioning unit R / AU2 (an example of a vehicle air conditioner) of Example 2. 実施例２のリア空調ユニットR/AU2による空気清浄時の作用説明図である。It is action | operation explanatory drawing at the time of the air cleaning by the rear air conditioning unit R / AU2 of Example 2. FIG. 実施例２のリア空調ユニットR/AU2による換気時の作用説明図である。It is action | operation explanatory drawing at the time of ventilation by the rear air conditioning unit R / AU2 of Example 2. FIG. 実施例２のリア空調ユニットR/AU2によるクーラ時の作用説明図である。It is action | operation explanatory drawing at the time of the cooler by the rear air conditioning unit R / AU2 of Example 2. FIG. 実施例３のリア空調ユニットR/AU3（車両用空気調和装置の一例）の全体構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the whole structure of the rear air conditioning unit R / AU3 (an example of a vehicle air conditioner) of Example 3.

Explanation of symbols

R/AU1,R/AU2,R/AU3 リア空調ユニット
１リアトレイパネル（車室内パネル）
２空調ケース
３空気清浄フィルタ
４送風ファン
５ブロワモータ
６空気吸い込み口
７吐出・吸込み兼用口
８吐出・吸込み切り換えドア（経路切り換え機構）
９空気清浄・熱交換切り換えドア（経路切り換え機構）
１０冷房用熱交換器（熱交換器）
１１リアクーラ吐出口
１２シール材
１３換気切り換えドア（経路切り換え機構）
１４換気口
１５リアクーラダクト
１６リアクーラ吹出し口 R / AU1, R / AU2, R / AU3 Rear air conditioning unit 1 Rear tray panel (vehicle compartment panel)
2 Air-conditioning case 3 Air purification filter 4 Blower fan 5 Blower motor 6 Air suction port 7 Discharge / suction combined port 8 Discharge / suction switching door (path switching mechanism)
9 Air cleaning / heat exchange switching door (path switching mechanism)
10 Heat exchanger for cooling (heat exchanger)
11 Rear cooler discharge port 12 Sealing material 13 Ventilation switching door (path switching mechanism)
14 Ventilation port 15 Rear cooler duct 16 Rear cooler outlet

Claims

In an air conditioner for a vehicle having an air conditioning case attached to a vehicle interior panel having an air inlet, an air cleaning filter, a blower fan, and a heat exchanger in the air conditioning case, and at least an air cleaning function and a heat exchanging function ,
A discharge / suction combined port that combines a clean air discharge port and a heat exchange air intake port is set in the vehicle interior panel,
During air cleaning, the air in the passenger compartment that has been sucked in from the air suction port is passed through an air purifying filter and a blower fan to become clean air, and the air purifying route that discharges the clean air from the discharge / suction combined port and heat exchange When the vehicle interior air sucked from the discharge / suction port is passed through a blower fan and a heat exchanger to become heat exchange air, and the heat exchange path blows out the blowout port set toward the vehicle interior A vehicle air conditioner characterized in that a path switching mechanism is provided.

The vehicle air conditioner according to claim 1,
The path switching mechanism is
A discharge / suction switching door that switches between a first position that communicates the discharge side of the blower fan and the discharge / suction port; and a second position that communicates the discharge / suction port and the suction side of the blower fan;
The discharge side of the blower fan communicates with the discharge / suction port and the first position at which the discharge side of the blower fan and the heat exchanger are shut off, and the discharge side of the blower fan communicates with the heat exchanger. An air cleaning / heat exchange switching door for switching the second position;
A vehicle air conditioner characterized by comprising:

The vehicle air conditioner according to claim 1 or 2,
The air purifying filter and the blower fan are separated from each other on the air suction axis on the downstream side of the air suction port with an air introduction gap between the filter outlet surface and the fan suction port. Air conditioner for vehicles.

The vehicle air conditioner according to any one of claims 1 to 3,
The vehicle interior panel having the air suction port and the discharge / suction combined port is a rear tray panel at the rear of the vehicle interior,
The heat exchanger is a cooling heat exchanger,
The outlet is a rear cooler outlet,
A vehicle air conditioner having a rear air cleaning function and a rear cooler function as an air conditioning function.

The vehicle air conditioner according to any one of claims 1 to 4,
In addition to switching between the air cleaning path during air cleaning and the heat exchanging path during heat exchange, the path switching mechanism ventilates the vehicle interior air sucked from the discharge / suction port through a blower fan during ventilation. A vehicle air conditioner that switches a ventilation path that blows out of a passenger compartment from a mouth.

The vehicle air conditioner according to claim 5,
The path switching mechanism shuts off the ventilation port, communicates the discharge side of the blower fan with the heat exchanger, communicates the ventilation port with the discharge side of the blower fan, An air conditioning apparatus for a vehicle, comprising a ventilation switching door that switches between a discharge position and a second position that shuts off the heat exchanger.

In the vehicle air conditioner according to claim 5 or 6,
The vehicle interior panel having the air suction port and the discharge / suction combined port is a rear tray panel at the rear of the vehicle interior,
The heat exchanger is a cooling heat exchanger,
The outlet is a rear cooler outlet,
The ventilation opening is a blowout opening to the rear trunk room,
A vehicle air conditioner having a rear air cleaning function, a rear cooler function, and a rear ventilation function as an air conditioning function.

The vehicle air conditioner according to any one of claims 1 to 7,
The air purifying filter and the blower fan have an air introduction gap between the filter outlet surface and the fan suction port, and the air purifying filter has an opening area on the discharge / suction combined port side from an opening area on the opposite side. A vehicular air conditioner characterized in that it is arranged to be inclined and spaced apart.