JP2016060275A - Vehicular air conditioner - Google Patents

Vehicular air conditioner Download PDF

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JP2016060275A
JP2016060275A JP2014187389A JP2014187389A JP2016060275A JP 2016060275 A JP2016060275 A JP 2016060275A JP 2014187389 A JP2014187389 A JP 2014187389A JP 2014187389 A JP2014187389 A JP 2014187389A JP 2016060275 A JP2016060275 A JP 2016060275A
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air conditioning
electronic component
conditioning duct
air
rib
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JP6459328B2 (en
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彩裕 内田
Ayahiro Uchida
彩裕 内田
治郎 山田
Jiro Yamada
治郎 山田
野村　忠宏
Tadahiro Nomura
忠宏 野村
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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Priority to JP2014187389A priority Critical patent/JP6459328B2/en
Priority to CN201520428815.XU priority patent/CN204774489U/en
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Abstract

PROBLEM TO BE SOLVED: To surely prevent dew condensation water from dripping on an electronic component while suppressing manufacturing costs.SOLUTION: An air conditioner 10 comprises an air conditioning unit 12 and an air conditioning duct 14 extending upward from the air conditioning unit 12. On a case wall surface of the air conditioning unit 12 is provided an electronic component 20 for air conditioning. On an outer surface 1404 of a position of the air conditioning duct 14 positioned above the electronic component 20 are vertically bulged out at intervals a plurality of ribs 24 extending in a direction crossing a perpendicular direction. In a planar view, the ribs 24 are extended so that the electronic component 20 is positioned near an intermediate part 24C in a longitudinal direction of the ribs 24. The ribs 24 are configured so that dew condensation water generated on the outer surface 1404 of the air conditioning duct 14 during air conditioning can flow along a longitudinal direction across a whole length in a longitudinal direction of the ribs 24.SELECTED DRAWING: Figure 1

Description

本発明は、車両の空調装置に関する。   The present invention relates to a vehicle air conditioner.

車両の空調装置は、車室内の空気を取り込むブロアと、ブロアから送風された空気を冷却して空調空気を生成する熱交換器とを収容する空調ユニットと、空調空気を吹き出し口から車室内へ導く空調ダクトとを備えている。
ところで、空調空気により空調ダクトが冷却されると、空調ダクトの外面に触れている空気中の水分が凝集して結露水となって空調ダクトの外面に付着する。
外面に付着した結露水は下方に移動し、空調ダクトの外面から滴下するため、空調ダクトの下方の箇所が濡れてしまう。
特に、空調ダクトの下方に各種電子部品が配置されている場合、電子部品に水分が付着すると電子部品の故障の原因となる。
そのため、結露水の滴下を阻止するために空調ダクトの外面に吸水性を有するパッキンやインシュレータなどの断熱部材を貼り付けて結露水の滴下を阻止していた。しかしながら、パッキンやインシュレータなどの断熱部材を空調ダクトの外面に貼り付ける場合、部品コストに加えて断熱部材の貼り付けに要する作業コストが嵩む不利がある。
そこで、特許文献１には、空調ダクトの外面に格子状の複数の突起部を設け、それら突起部で囲まれた複数の凹部に結露水を保持し、結露水の滴下を抑制する技術が提案されている。 An air conditioner for a vehicle includes an air conditioner that houses a blower that takes in air in the vehicle interior, a heat exchanger that cools air blown from the blower and generates air conditioned air, and air conditioned air from the outlet to the vehicle interior. It has an air conditioning duct that leads.
By the way, when the air-conditioning duct is cooled by the air-conditioned air, moisture in the air that is in contact with the outer surface of the air-conditioning duct aggregates and becomes condensed water and adheres to the outer surface of the air-conditioning duct.
Since the dew condensation water adhering to the outer surface moves downward and drops from the outer surface of the air conditioning duct, the portion below the air conditioning duct gets wet.
In particular, when various electronic components are arranged below the air conditioning duct, if water adheres to the electronic components, it may cause a failure of the electronic components.
Therefore, in order to prevent dripping of the condensed water, a heat insulating member such as a packing or an insulator having water absorbability is attached to the outer surface of the air conditioning duct to prevent the dripping of the condensed water. However, when a heat insulating member such as a packing or an insulator is attached to the outer surface of the air-conditioning duct, there is a disadvantage that the work cost required for attaching the heat insulating member is increased in addition to the component cost.
Therefore, Patent Document 1 proposes a technique in which a plurality of lattice-shaped protrusions are provided on the outer surface of the air conditioning duct, and condensed water is held in a plurality of recesses surrounded by the protrusions to suppress dripping of the condensed water. Has been.

特開平７−２５７１４９号公報JP 7-257149 A

しかしながら、上記従来技術では、結露水が複数の凹部に保持されることで空調ダクトからの結露水の滴下をある程度防止抑制できるものの、結露水が凹部に保持し得る量を超えると、結露水が突起部を乗り越えて下方に流れ空調ダクトから滴下するおそれがあるため、改善の余地があった。
本発明は、上記事情に鑑みなされたものであり、製造コストの抑制を図りつつ結露水の電子部品への滴下を確実に防止する上で有利な車両の空調装置を提供することを目的とする。 However, in the above prior art, the condensed water is retained in the plurality of recesses, so that the condensation water can be prevented from dripping from the air conditioning duct to some extent, but if the condensed water exceeds the amount that can be retained in the recesses, There is room for improvement because there is a risk that it will flow over the protrusion and flow downward from the air conditioning duct.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle air conditioner that is advantageous in reliably preventing dripping water from dripping onto an electronic component while reducing the manufacturing cost. .

上記目的を達成するために、請求項１記載の発明は、ブロアおよび熱交換器が収容された空調ユニットと、前記空調ユニットから突設され先端に車室内への吹き出し口が設けられた空調ダクトとを有し、当該空調ダクトの下方に電子部品が配置される車両の空調装置であって、前記空調ダクトの前記電子部品の上方に位置する箇所の外面に、垂直方向に対して交差する方向に延びる複数のリブが上下に間隔をおいて膨出形成され、前記リブは、当該リブの長手方向の中間部近傍に電子部品が位置するように延在され、前記空調ダクトの外面に発生した結露水が当該リブの長手方向に沿って流動可能に構成されていることを特徴とする。
請求項２記載の発明は、前記リブの長手方向の少なくとも一部は、前記結露水を水平方向において空調ダクト下方に配置された電子部品から離れた箇所に導くように傾斜していることを特徴とする。
請求項３記載の発明は、前記複数のリブは、長手方向の一端から他端に至るにつれて次第に下方に位置するように傾斜していることを特徴とする。
請求項４記載の発明は、前記複数のリブは、長手方向の中間部を境にして、一端側の半部または他端側の半部の少なくとも一方の半部が前記中間部から離れるにつれて次第に下方に位置するように傾斜していることを特徴とする。
請求項５記載の発明は、前記空調ダクトは、上下方向に延設されるダクト本体と、前記ダクト本体の下部に設けられ前記ダクト本体の断面よりも大きい断面で形成され前記空調ユニットの上部が嵌め込まれる下方に開放状の嵌合部とを備え、前記空調ダクトの外面は、前記ダクト本体の外面と前記嵌合部の外面とで構成され、前記ダクト本体と前記嵌合部との境の箇所に、上方に向いた段差面が前記空調ダクトの周方向に沿って延在形成され、前記段差面は、前記結露水を水平方向において前記電子部品から離れた箇所に導くように前記リブと同一方向に傾斜していることを特徴とする。
請求項６記載の発明は、前記空調ダクトには、前記空調ダクトを車体に取り付けるための取り付け片が膨出形成され、前記取り付け片は、前記結露水を水平方向において前記電子部品から離れた箇所に導くように傾斜していることを特徴とする。
請求項７記載の発明は、前記電子部品は、前記空調ユニットのケースに設けられる空調制御用の電子部品であり、配線ケーブルと接続されるコネクタ部がケース外面から突出するよう設けられており、前記リブは、前記電子部品の前記コネクタ部の上方に位置するよう延設されていることを特徴とする。 In order to achieve the above object, an invention according to claim 1 is directed to an air conditioning unit in which a blower and a heat exchanger are accommodated, and an air conditioning duct that protrudes from the air conditioning unit and is provided with a blow-out opening to the vehicle interior at the tip. A vehicle air conditioner in which an electronic component is disposed below the air conditioning duct, and a direction intersecting the vertical direction on the outer surface of the air conditioning duct located above the electronic component A plurality of ribs extending in the vertical direction are formed to bulge at intervals in the vertical direction, and the ribs are extended so that an electronic component is positioned in the vicinity of an intermediate portion in the longitudinal direction of the ribs, and are generated on the outer surface of the air conditioning duct. The condensed water is configured to be flowable along the longitudinal direction of the rib.
The invention according to claim 2 is characterized in that at least a part of the rib in the longitudinal direction is inclined so as to guide the condensed water to a place away from the electronic component disposed below the air conditioning duct in the horizontal direction. And
The invention according to claim 3 is characterized in that the plurality of ribs are inclined so as to gradually be positioned downward from one end to the other end in the longitudinal direction.
According to a fourth aspect of the present invention, the plurality of ribs are gradually formed such that at least one half of the half on the one end side or the half on the other end side is separated from the intermediate portion with the middle portion in the longitudinal direction as a boundary. It is inclined so that it may be located below.
According to a fifth aspect of the present invention, the air conditioning duct is formed with a duct main body extending in the vertical direction and a cross section that is provided at a lower portion of the duct main body and is larger than a cross section of the duct main body, and an upper portion of the air conditioning unit is A fitting portion that is open at the bottom, and an outer surface of the air conditioning duct is configured by an outer surface of the duct body and an outer surface of the fitting portion, and a boundary between the duct body and the fitting portion. A step surface facing upward is formed at a location extending along a circumferential direction of the air conditioning duct, and the step surface is formed with the rib so as to guide the condensed water to a location away from the electronic component in the horizontal direction. It is characterized by tilting in the same direction.
According to a sixth aspect of the present invention, an attachment piece for attaching the air-conditioning duct to the vehicle body bulges out in the air-conditioning duct, and the attachment piece is a place where the condensed water is separated from the electronic component in the horizontal direction. It is characterized by being inclined so as to lead to
In the invention according to claim 7, the electronic component is an electronic component for air conditioning control provided in a case of the air conditioning unit, and a connector portion connected to the wiring cable is provided so as to protrude from the outer surface of the case. The rib is extended to be positioned above the connector portion of the electronic component.

請求項１記載の発明によれば、空調時に空調ダクトの外面の箇所に発生した結露水は下方に移動してリブ上に留められる。そして、結露水の量が多くなるにつれて、結露水の親水性により結露水がリブの長手方向に沿って横長状に延びていき、最終的にリブの端部から下方に滴下される。つまり、結露水がリブ上に留められるだけでなく、結露水の量がある程度の量になると電子部品から水平方向に離れた箇所でリブの端部から結露水が排水されるので、確実に電子部品への結露水の滴下を防止することができる。
したがって、吸水性を有するパッキンやインシュレータなどの断熱部材を空調ダクトの外面に貼り付ける必要がなく、製造コストの抑制を図りつつ結露水の電子部品への滴下を防止できる。
請求項２記載の発明によれば、リブの長手方向の少なくとも一部が傾斜しているため、結露水を効率よく電子部品から離れた箇所に流動させて排水する上で有利となり、結露水の電子部品への滴下を確実に防止する上で有利となる。
請求項３記載の発明によれば、リブの上の結露水がリブの傾斜に沿って長手方向の他端側（リブの下方側の端部）に導かれるので、水平方向において電子部品から離れた箇所でより効率よく結露水を排水することができる。従って、結露水の電子部品への滴下を確実に防止する上でより有利となる。
請求項４記載の発明によれば、リブの上の結露水がリブの傾斜に沿ってリブの一端または他端に向かって積極的に流れるので、中間部近傍に溜まりにくく、水平方向において電子部品から離れた箇所でより効率よく結露水を排水することができる。従って、結露水の電子部品への滴下を確実に防止する上でより有利となる。
請求項５記載の発明によれば、段差面を利用して結露水を電子部品から離れた箇所に導くことができるため、結露水の電子部品への滴下を確実に防止する上でより有利となる。
請求項６記載の発明によれば、取り付け片を利用して結露水を電子部品から離れた箇所に導くことができるため、結露水の電子部品への滴下を確実に防止する上でより有利となる。
請求項７記載の発明によれば、配線ケーブルと接続されるコネクタ部に対して結露水が被水するのを確実に防止することができる。 According to the first aspect of the present invention, the dew condensation water generated at the location on the outer surface of the air conditioning duct during air conditioning moves downward and is retained on the rib. As the amount of dew condensation water increases, the dew condensation water extends horizontally in the longitudinal direction of the ribs due to the hydrophilicity of the dew condensation water, and finally drops downward from the ends of the ribs. In other words, the condensed water is not only retained on the ribs, but when the amount of condensed water reaches a certain level, the condensed water is drained from the end of the rib at a location away from the electronic component in the horizontal direction. It is possible to prevent the condensation water from dripping onto the parts.
Therefore, it is not necessary to affix a heat insulating member such as packing or insulator having water absorption on the outer surface of the air conditioning duct, and it is possible to prevent dripping of the condensed water on the electronic component while reducing the manufacturing cost.
According to the second aspect of the present invention, since at least a part of the rib in the longitudinal direction is inclined, it is advantageous in efficiently draining the condensed water by flowing it away from the electronic component. This is advantageous for reliably preventing dripping onto the electronic component.
According to the third aspect of the present invention, the dew condensation water on the rib is guided to the other end side in the longitudinal direction (the end portion on the lower side of the rib) along the inclination of the rib. Condensed water can be drained more efficiently at the spot. Therefore, it is more advantageous to surely prevent the condensation water from dripping onto the electronic component.
According to the fourth aspect of the present invention, the dew condensation water on the ribs actively flows toward one end or the other end of the rib along the inclination of the rib. Condensed water can be drained more efficiently at locations away from. Therefore, it is more advantageous to surely prevent the condensation water from dripping onto the electronic component.
According to the fifth aspect of the present invention, the dew condensation water can be guided to a place away from the electronic component by using the step surface, which is more advantageous in reliably preventing the dew condensation from dropping on the electronic component. Become.
According to the sixth aspect of the present invention, the condensed water can be guided to a place away from the electronic component by using the mounting piece, which is more advantageous in reliably preventing the condensed water from dripping onto the electronic component. Become.
According to the seventh aspect of the present invention, it is possible to reliably prevent the condensed water from getting wet with respect to the connector portion connected to the wiring cable.

実施の形態に係る車両の空調装置の構成を示す正面図である。It is a front view which shows the structure of the air conditioner of the vehicle which concerns on embodiment. 実施の形態に係る車両の空調装置の空調ダクトおよび電子部品の部分を示す斜視図である。It is a perspective view which shows the part of the air-conditioning duct and electronic component of the vehicle air conditioner which concerns on embodiment. 実施の形態に係る車両の空調装置の空調ダクトの部分を示す斜視図である。It is a perspective view which shows the part of the air-conditioning duct of the air conditioner of the vehicle which concerns on embodiment. 実施の形態に係る車両の空調装置の空調ダクトおよび電子部品の部分を示す正面図である。It is a front view which shows the part of the air-conditioning duct and electronic component of the vehicle air conditioner which concerns on embodiment. 図４のＡ矢視図である。It is A arrow directional view of FIG. （Ａ）は実施の形態におけるリブと電子部品との位置関係を示す空調ダクトの外面の展開図、（Ｂ）は変形例におけるリブと電子部品との位置関係を示す空調ダクトの外面の展開図、（Ｃ）は他の変形例におけるリブと電子部品との位置関係を示す空調ダクトの外面の展開図である。(A) is a developed view of the outer surface of the air conditioning duct showing the positional relationship between the rib and the electronic component in the embodiment, (B) is a developed view of the outer surface of the air conditioning duct showing the positional relationship between the rib and the electronic component in the modification. (C) is a development view of the outer surface of an air-conditioning duct showing the positional relationship between ribs and electronic components in another modification. （Ａ）は実施の形態におけるリブと電子部品との位置関係を示す空調ダクトの平面図、（Ｂ）は変形例におけるリブと電子部品との位置関係を示す空調ダクトの平面図、（Ｃ）は他の変形例におけるリブと電子部品との位置関係を示す空調ダクトの平面図である。(A) is a top view of the air-conditioning duct which shows the positional relationship of the rib and electronic component in embodiment, (B) is a top view of the air-conditioning duct which shows the positional relationship of the rib and electronic component in a modification, (C). These are the top views of the air-conditioning duct which shows the positional relationship of the rib and electronic component in another modification. （Ａ）は結露水がリブ上に位置している状態を示す空調ダクトの断面図、（Ｂ）は（Ａ）のＢ矢視図、（Ｃ）は（Ｂ）において結露水が結露水の親水性によりリブの長手方向に沿って流動した状態を示す図である。(A) is sectional drawing of the air-conditioning duct which shows the state in which condensed water is located on a rib, (B) is a B arrow view of (A), (C) is condensed water in (B). It is a figure which shows the state which flowed along the longitudinal direction of the rib by hydrophilicity.

以下、本発明の実施の形態について図面を参照して説明する。
本実施の形態では、車両の空調装置（以下空調装置という）が車室後部に空調空気を吹き出す空調ダクトを備えるものである場合について説明する。なお、空調ダクトは、これに限定されるものではなく、例えば、インストルメントパネルから運転席あるいは助手席に向かって空調空気を吹き出すものであってもよい。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, a case will be described in which a vehicle air conditioner (hereinafter referred to as an air conditioner) is provided with an air conditioning duct that blows conditioned air to the rear of the passenger compartment. The air conditioning duct is not limited to this, and for example, air conditioning air may be blown out from the instrument panel toward the driver seat or the passenger seat.

図１に示すように、空調装置１０は、空調ユニット１２と、空調ユニット１２から上方に延びる空調ダクト１４とを備えている。
空調ユニット１２は、そのケース内にブロア１６と、熱交換器１８（エバポレータ）とを収容しており、空調ユニット１２のケース壁面には空調制御用の電子部品２０が設けられている。
空調ユニット１２は、ブロア１６を収容するブロア収容部１２Ａと、ブロア収容部１２Ａに接続され熱交換器１８を収容する熱交換器収容部１２Ｂと、熱交換器収容部１２Ｂの上部から上方に突設され後述する空調ダクト１４の嵌合部１４Ｂに接続されるダクト接続部１２Ｃとを備えている。
ダクト接続部１２Ｃは、空調ダクト１４の嵌合部１４Ｂの内側に挿入可能な矩形筒状を呈している。 As shown in FIG. 1, the air conditioner 10 includes an air conditioning unit 12 and an air conditioning duct 14 extending upward from the air conditioning unit 12.
The air conditioning unit 12 accommodates a blower 16 and a heat exchanger 18 (evaporator) in the case, and an electronic component 20 for air conditioning control is provided on the case wall surface of the air conditioning unit 12.
The air conditioning unit 12 protrudes upward from the upper part of the blower accommodating part 12A for accommodating the blower 16, the heat exchanger accommodating part 12B for accommodating the heat exchanger 18 connected to the blower accommodating part 12A, and the heat exchanger accommodating part 12B. And a duct connecting portion 12C connected to a fitting portion 14B of an air conditioning duct 14 which will be described later.
The duct connecting portion 12 </ b> C has a rectangular cylindrical shape that can be inserted inside the fitting portion 14 </ b> B of the air conditioning duct 14.

ブロア１６は、不図示の空気取り入れ口から取り入れた車室内の空気を熱交換器１８を介して空調ダクト１４へ送風するものである。
ブロア１６は、不図示の羽根車と、羽根車を回転駆動する不図示のモータとを含んで構成されている。 The blower 16 blows air in the vehicle compartment taken from an air intake port (not shown) to the air conditioning duct 14 via the heat exchanger 18.
The blower 16 includes an impeller (not shown) and a motor (not shown) that rotationally drives the impeller.

熱交換器１８は、不図示のコンプレッサ、コンデンサなどと共に冷凍サイクルを構成し、熱交換器１８に冷媒が供給されることでブロア１６から送風される車室内の空気を冷却することで空調空気を生成するものである。
図中矢印Ｆ１はブロア１６で取り入れられた車室内の空気の流れを示し、矢印Ｆ２、Ｆ３は熱交換器１８で冷却された空調空気の流れを示している。 The heat exchanger 18 constitutes a refrigeration cycle together with a compressor, a condenser, and the like (not shown). When the refrigerant is supplied to the heat exchanger 18, the air in the vehicle interior blown from the blower 16 is cooled, thereby supplying conditioned air. Is to be generated.
In the figure, the arrow F1 indicates the flow of air in the vehicle compartment taken in by the blower 16, and the arrows F2 and F3 indicate the flow of conditioned air cooled by the heat exchanger 18.

空調制御用の電子部品２０は、空調装置１０の制御を行なうものであり、本実施の形態では、ブロア１６の作動を制御するパワートランジスタで構成されている。電子部品２０（パワートランジスタ）は、ブロア１６のモータに供給する駆動電力の電圧を制御信号に応じて切り替えることにより羽根車の回転数を増減させ、空調ダクト１４に送風する空調空気の風量を変更させるようブロア１６を制御する。
電子部品２０は、ブロア１６および熱交換器１８の下流に配置されるよう空調ユニット１２の熱交換器収容部１２Ｂに設けられている。これにより、電子部品２０から発生される熱を冷却できる構成としている。本実施の形態では、熱交換器収容部１２Ｂから空調ダクト１４が上方に延びており、電子部品２０は、この空調ダクト１４の下方に配置される。また電子部品２０は、図２に示すように、配線ケーブル２２が接続されるコネクタ部２０Ａが空調ユニット１２のケース外面に突出するよう設けられている。つまり電子部品２０のコネクタ部２０Ａが空調ダクト１４の下方で突出されている。
なお、配線ケーブル２２は、制御信号を電子部品２０に供給する信号ケーブルと駆動電力を電子部品２０に供給する電源ケーブルとを含む。 The electronic component 20 for air-conditioning control controls the air-conditioning apparatus 10, and is comprised by the power transistor which controls the action | operation of the blower 16 in this Embodiment. The electronic component 20 (power transistor) increases or decreases the rotational speed of the impeller by switching the voltage of the driving power supplied to the motor of the blower 16 according to the control signal, and changes the air volume of the conditioned air sent to the air conditioning duct 14 The blower 16 is controlled so that the
The electronic component 20 is provided in the heat exchanger accommodating portion 12B of the air conditioning unit 12 so as to be arranged downstream of the blower 16 and the heat exchanger 18. Thereby, the heat generated from the electronic component 20 can be cooled. In the present embodiment, the air conditioning duct 14 extends upward from the heat exchanger accommodating portion 12 </ b> B, and the electronic component 20 is disposed below the air conditioning duct 14. As shown in FIG. 2, the electronic component 20 is provided so that a connector portion 20 </ b> A to which the wiring cable 22 is connected protrudes from the case outer surface of the air conditioning unit 12. That is, the connector part 20 </ b> A of the electronic component 20 protrudes below the air conditioning duct 14.
The wiring cable 22 includes a signal cable that supplies a control signal to the electronic component 20 and a power cable that supplies driving power to the electronic component 20.

空調ダクト１４は、空調ユニット１２から上方に突設され先端に車室内への吹き出し口１４０２が設けられ、熱交換器１８で冷却された空調空気を吹き出し口１４０２から車室内へ導くものである。
空調ダクト１４は、合成樹脂製であり、金型を用いて成形される。成形方法としてはブロー成形など従来公知の様々な成形方法が使用可能である。
図１から図５に示すように、電子部品２０の上方に位置する空調ダクト１４の箇所の外面１４０４に、垂直方向と交差する方向へ延びる複数のリブ２４が上下に間隔をおいて膨出されている。
本実施の形態では、複数のリブ２４は、互いに平行している。 The air-conditioning duct 14 projects upward from the air-conditioning unit 12 and is provided with an outlet 1402 to the vehicle interior at the tip, and guides the conditioned air cooled by the heat exchanger 18 from the outlet 1402 to the vehicle interior.
The air conditioning duct 14 is made of a synthetic resin and is molded using a mold. As the molding method, various conventionally known molding methods such as blow molding can be used.
As shown in FIG. 1 to FIG. 5, a plurality of ribs 24 extending in a direction intersecting the vertical direction are swelled up and down on the outer surface 1404 at the location of the air conditioning duct 14 located above the electronic component 20. ing.
In the present embodiment, the plurality of ribs 24 are parallel to each other.

平面視した場合、リブ２４の長手方向の中間部２４Ｃの近傍に電子部品２０が位置するようにリブ２４は延在している。この場合、平面視した場合、リブ２４の長手方向の中間部２４Ｃの近傍に電子部品２０が位置するとは、図７（Ａ）に示すように、リブ２４の長手方向中間部と電子部品２０の輪郭が重なっている場合、図７（Ｂ）、（Ｃ）に示すように、リブ２４の長手方向の中間部２４Ｃと電子部品２０の輪郭とが離れている場合の双方を含む。   When viewed in plan, the rib 24 extends so that the electronic component 20 is positioned in the vicinity of the intermediate portion 24 </ b> C in the longitudinal direction of the rib 24. In this case, when viewed in plan, the electronic component 20 is located in the vicinity of the intermediate portion 24C in the longitudinal direction of the rib 24. As shown in FIG. When the outlines overlap, as shown in FIGS. 7B and 7C, this includes both cases where the intermediate portion 24 </ b> C in the longitudinal direction of the rib 24 and the outline of the electronic component 20 are separated.

リブ２４は、空調時に空調ダクト１４の外面１４０４の箇所に発生した結露水がリブ２４の長手方向の全長にわたり長手方向に沿って流動可能に構成されている。より詳細には、リブ２４の上面２４０２（図８（Ａ）参照）は、リブ２４の長手方向に沿って結露水が流動しやすいようになだらかな面で形成されている。
リブ２４の長手方向の少なくとも一部は、結露水を水平方向において電子部品２０から離れた箇所に導くように下方へ傾斜している。 The rib 24 is configured such that the dew condensation water generated at the location of the outer surface 1404 of the air conditioning duct 14 during air conditioning can flow along the longitudinal direction over the entire length of the rib 24 in the longitudinal direction. More specifically, the upper surface 2402 of the rib 24 (see FIG. 8A) is formed with a gentle surface so that the condensed water easily flows along the longitudinal direction of the rib 24.
At least a part of the longitudinal direction of the rib 24 is inclined downward so as to guide the dew condensation water to a place away from the electronic component 20 in the horizontal direction.

本実施の形態では、図４、図５、図６（Ａ）、図７（Ａ）に示すように、空調ダクト１４は断面が矩形枠状を呈して４つの側面１４１０を有し、電子部品２０は、隣り合う２つの側面１４１０Ａ，１４１０Ｂの角部１４１２の下方の空調ユニット１２の箇所に位置している。電子部品２０は、空調ユニット１２のケース外面からコネクタ部２０Ａが突出された状態で設けられ、このコネクタ部２０Ａに配線ケーブル２２が接続されている。
複数のリブ２４は、電子部品２０の上方、より具体的には、電子部品２０のコネクタ部２０Ａの上方に位置する角部１４１２で交差する隣り合う２つの側面１４１０Ａ，１４１０Ｂにわたって設けられている。つまり、複数のリブ２４は、電子部品２０のコネクタ２０Ａの上方である角部１４１２に長手方向の中間部２４Ｃが位置するように配置され、中間部２４Ｃを境に一端側の半部２４Ａが隣り合う２つの側面１４１０Ａ，１４１０Ｂの内の一方の側面１４１０Ａに延設され、他端側の半部２４Ｂが隣り合う２つの側面１４１０Ａ，１４１０Ｂの内の他方の側面１４１０Ｂに延設されている。なお、ここでは、複数のリブ２４は、隣り合う２つの側面１４１０Ａ，１４１０Ｂ以外の側面１４１０、すなわち、電子部品２０の上方に位置しない側面１４１０（外面１４０４）には設けられていない。 In this embodiment, as shown in FIGS. 4, 5, 6 (A), and 7 (A), the air-conditioning duct 14 has a rectangular frame shape and has four side surfaces 1410, and an electronic component 20 is located in the location of the air-conditioning unit 12 under the corner | angular part 1412 of two adjacent side surfaces 1410A and 1410B. The electronic component 20 is provided in a state where the connector portion 20A protrudes from the outer surface of the case of the air conditioning unit 12, and a wiring cable 22 is connected to the connector portion 20A.
The plurality of ribs 24 are provided over two adjacent side surfaces 1410A and 1410B that intersect at the corner portion 1412 located above the electronic component 20, more specifically, the connector portion 20A of the electronic component 20. That is, the plurality of ribs 24 are arranged so that the longitudinal intermediate portion 24C is positioned at the corner portion 1412 above the connector 20A of the electronic component 20, and the half portion 24A on one end side is adjacent to the intermediate portion 24C. One of the two side surfaces 1410A and 1410B is extended to one side surface 1410A, and the other half portion 24B is extended to the other side surface 1410B of the two adjacent side surfaces 1410A and 1410B. Here, the plurality of ribs 24 are not provided on the side surface 1410 other than the two adjacent side surfaces 1410A and 1410B, that is, the side surface 1410 (outer surface 1404) not positioned above the electronic component 20.

図４、図５、図６（Ａ）に示すように、複数のリブ２４は、一方の側面１４１０Ａでは、角部１４１２の稜線に対して直交する方向に延在し、他方の側面１４１０Ｂでは、角部１４１２の稜線から離れるにつれて次第に下方に位置するように傾斜している。
言い換えると、図６（Ａ）に示すように、複数のリブ２４は、中間部２４Ｃを境にして長手方向の一端側の半部２４Ａが、空調ダクト１４の長手方向と直交する方向に延在し、長手方向の他端側の半部２４Ｂは、中間部２４Ｃが位置する角部１４１２の稜線から離れるにつれて次第に下方に位置するように傾斜している。 As shown in FIGS. 4, 5, and 6A, the plurality of ribs 24 extend in a direction orthogonal to the ridgeline of the corner portion 1412 on one side surface 1410A, and on the other side surface 1410B, As the distance from the ridge line of the corner portion 1412 increases, the angle gradually declines.
In other words, as shown in FIG. 6A, the plurality of ribs 24 are such that the half portion 24A on one end side in the longitudinal direction extends in a direction perpendicular to the longitudinal direction of the air conditioning duct 14 with the intermediate portion 24C as a boundary. Then, the half portion 24B on the other end side in the longitudinal direction is inclined so as to be gradually positioned downward as it is away from the ridge line of the corner portion 1412 where the intermediate portion 24C is located.

図４、図５に示すように、空調ダクト１４は、空調ダクト本体１４Ａと、嵌合部１４Ｂとを備え、空調ダクト１４の外面１４０４は、空調ダクト本体１４Ａの外面と嵌合部１４Ｂの外面とで構成されている。
嵌合部１４Ｂは、空調ダクト本体１４Ａの下部に設けられ空調ダクト本体１４Ａの断面よりも大きい矩形枠状の断面で形成され、ダクト接続部１２Ｃが嵌め込まれる下方に開放状を呈している。
図２から図５に示すように、空調ダクト本体１４Ａと嵌合部１４Ｂとの境の箇所に、上方に向いた段差面１４２０が空調ダクト１４の周方向に沿って延在形成されている。
段差面１４２０は、結露水を水平方向において電子部品２０から離れた箇所に導くように傾斜している。 As shown in FIGS. 4 and 5, the air conditioning duct 14 includes an air conditioning duct main body 14A and a fitting portion 14B, and an outer surface 1404 of the air conditioning duct 14 includes an outer surface of the air conditioning duct main body 14A and an outer surface of the fitting portion 14B. It consists of and.
The fitting part 14B is provided in the lower part of the air-conditioning duct main body 14A, is formed in a rectangular frame-shaped cross section larger than the cross-section of the air-conditioning duct main body 14A, and has an open shape below the duct connecting part 12C.
As shown in FIGS. 2 to 5, a stepped surface 1420 facing upward is formed extending along the circumferential direction of the air conditioning duct 14 at the boundary between the air conditioning duct main body 14 </ b> A and the fitting portion 14 </ b> B.
The step surface 1420 is inclined so as to guide the dew condensation water to a location away from the electronic component 20 in the horizontal direction.

図３から図５に示すように、空調ダクト１４には、空調ダクト１４を車体に取り付けるための取り付け片２６が膨出形成され、取り付け片２６にはボルト挿通孔２６０２が設けられている。
取り付け片２６は、結露水を水平方向において電子部品２０から離れた箇所に導くように傾斜している。 As shown in FIGS. 3 to 5, the air-conditioning duct 14 is formed with a bulging attachment piece 26 for attaching the air-conditioning duct 14 to the vehicle body, and the attachment piece 26 is provided with a bolt insertion hole 2602.
The attachment piece 26 is inclined so as to guide the condensed water to a place away from the electronic component 20 in the horizontal direction.

次に、空調装置１０の作用効果について説明する。
ブロア１６により吸い込まれた車室内の空気が熱交換器１８により冷却され空調空気として空調ダクト１４を介して吹き出し口１４０２から車室内へ吹き出される。
この際、空調空気により空調ダクト１４が冷却されるため、空気中の水分が凝集して結露水となって空調ダクト１４の外面１４０４に付着する。
図８（Ａ）、（Ｂ）に示すように、外面１４０４に付着した結露水は下方に移動してリブ２４上に至る。リブ２４の上に溜まった結露水は、結露水の量が増えるに従って、図８の（Ｂ）、（Ｃ）に示すように次第にリブ２４の長手方向に沿って横長状に拡がっていく。そして、リブ２４上の結露水がリブ２４の端部まで達すると、電子部品２０から水平方向に離れた位置で結露水がリブ２４の端部から下方に滴下して排水される。
なお、リブ２４が下方に向かって傾斜されている場合は、結露水が傾斜に沿って流れ、積極的に電子部品２０から水平方向に離れた位置に導かれるので、より効率的に排水される。 Next, the effect of the air conditioner 10 will be described.
Air in the passenger compartment sucked in by the blower 16 is cooled by the heat exchanger 18 and blown out from the outlet 1402 to the passenger compartment through the air conditioning duct 14 as conditioned air.
At this time, since the air-conditioning duct 14 is cooled by the conditioned air, moisture in the air aggregates to form condensed water and adheres to the outer surface 1404 of the air-conditioning duct 14.
As shown in FIGS. 8A and 8B, the condensed water adhering to the outer surface 1404 moves downward and reaches the ribs 24. As shown in FIGS. 8B and 8C, the condensed water accumulated on the ribs 24 gradually spreads horizontally in the longitudinal direction of the ribs 24 as the amount of condensed water increases. When the condensed water on the rib 24 reaches the end of the rib 24, the condensed water is dropped downward from the end of the rib 24 and drained at a position away from the electronic component 20 in the horizontal direction.
In addition, when the rib 24 is inclined downward, the dew condensation water flows along the inclination and is actively guided to a position away from the electronic component 20 in the horizontal direction. .

リブ２４に至った結露水について図６（Ａ）の実施形態を例に説明する。
リブ２４の一端側の半部２４Ａ上に流れてきた結露水は、リブ２４の半部２４Ａ上に溜まる。
そして、結露水の量が多くなるにつれ、図８（Ｂ）、（Ｃ）に示すように、空調ダクト１４の外面１４０４とリブ２４の上面２４０２との交差部において結露水の親水性により半部２４Ａの長手方向に沿って横長状に拡がっていく。そして、半部２４Ａ上に溜まった結露水がリブ２４の一端にまで達すると、端部から下方に滴下して排水される。逆に、半部２４上に溜まった結露水が中間部２４Ｃ側に拡がり他端側の半部２４Ｂまで達すると、半部２４Ｂの傾斜に沿って下方の他端側に流れ、リブ２４の他端から下方に滴下して排水される。
一方、リブ２４の他端側の半部２４Ｂ上に流れてきた結露水は、半部２４Ｂ上である程度の量が溜まると半部２４Ｂの傾斜に沿って下方の他端側に流れていき、リブ２４の他端から滴下して排水される。
このようにリブ２４に達した結露水は、リブ２４上に一時的に溜まった後、電子部品２０と水平方向に離れた箇所において、リブ２４の一端（半部２４Ａ側の端部）および他端（半部２４Ｂ側の端部）から下方に滴下して排水される。
したがって、吸水性を有するパッキンやインシュレータなどの断熱部材を空調ダクト１４の外面１４０４に貼り付けることなく結露水の電子部品２０への滴下を防止できる。
そのため、部品コストや断熱部材の貼り付けに要する作業コストを削減でき、製造コストの抑制を図りつつ結露水の電子部品２０への滴下を防止する上で有利となる。
特に、本実施の形態では、電子部品２０の配線ケーブル２２が接続されるコネクタ部２０Ａの上方にリブ２４の中間部２４Ｃが位置するように設けられているので、比較的水に弱いコネクタ部２０Ａを被水から確実に保護することができる。
また、複数のリブ２４が形成されることにより空調ダクト１４の強度、剛性が向上するため、空調ダクト１４の組み付け時の作業性の向上を図る上で有利となる。 Condensed water that has reached the ribs 24 will be described by taking the embodiment of FIG. 6A as an example.
The condensed water that has flowed onto the half portion 24 </ b> A on one end side of the rib 24 accumulates on the half portion 24 </ b> A of the rib 24.
Then, as the amount of condensed water increases, as shown in FIGS. 8B and 8C, a half portion is formed due to the hydrophilicity of the condensed water at the intersection between the outer surface 1404 of the air conditioning duct 14 and the upper surface 2402 of the rib 24. It spreads horizontally in the longitudinal direction of 24A. When the condensed water accumulated on the half portion 24A reaches one end of the rib 24, it is dropped downward from the end portion and drained. On the contrary, when the condensed water accumulated on the half portion 24 spreads to the intermediate portion 24C side and reaches the half portion 24B on the other end side, it flows to the other end side below along the inclination of the half portion 24B. It is dripped downward from the end and drained.
On the other hand, the condensed water that has flowed on the half part 24B on the other end side of the rib 24 flows to the other end side below along the inclination of the half part 24B when a certain amount of water accumulates on the half part 24B. It is dropped from the other end of the rib 24 and drained.
The condensed water that has reached the ribs 24 in this way is temporarily accumulated on the ribs 24 and then at one end of the ribs 24 (the end on the side of the half portion 24A) and the other at a place away from the electronic component 20 in the horizontal direction. It is dropped and drained from the end (the end on the half 24B side) downward.
Therefore, it is possible to prevent dripping water from dripping onto the electronic component 20 without sticking a heat insulating member such as packing or insulator having water absorption to the outer surface 1404 of the air conditioning duct 14.
Therefore, it is possible to reduce the part cost and the work cost required for attaching the heat insulating member, which is advantageous in preventing dripping of condensed water onto the electronic component 20 while suppressing the manufacturing cost.
In particular, in the present embodiment, since the intermediate portion 24C of the rib 24 is positioned above the connector portion 20A to which the wiring cable 22 of the electronic component 20 is connected, the connector portion 20A that is relatively weak against water. Can be reliably protected from moisture.
Moreover, since the strength and rigidity of the air conditioning duct 14 are improved by forming the plurality of ribs 24, it is advantageous in improving workability when the air conditioning duct 14 is assembled.

また、本実施の形態では、リブ２４は、電子部品２０の上方に位置する外面１４０４にのみ設けられている。
したがって、設けるリブ２４の数が必要最小限で済むため、空調ダクト１４を金型により成形する場合、金型の製造コストを抑制する上で有利となる。 In the present embodiment, the rib 24 is provided only on the outer surface 1404 located above the electronic component 20.
Therefore, since the number of ribs 24 to be provided is minimized, it is advantageous to reduce the manufacturing cost of the mold when the air conditioning duct 14 is molded by a mold.

また、本実施の形態では、複数のリブ２４は、長手方向の一端側の半部２４Ａが、空調ダクト１４の長手方向と直交する方向に延在し、長手方向の他端側の半部２４Ｂは、一端側の半部２４Ａとの結合箇所である中間部２４Ｃから離れるにつれて次第に下方に位置するように傾斜している。
したがって、リブ２４が傾斜している半部２４Ｂでは、リブ２４Ｂの上の結露水がリブ２４（半部２４Ｂ）の傾斜に沿って水平方向において電子部品２０から離れた箇所により効率よく導かれて排水されるため、リブ２４の中間部２４Ｃ付近に結露水が溜まり難く、結露水の電子部品２０への滴下を確実に防止する上でより有利となる。 In the present embodiment, the plurality of ribs 24 have a half portion 24A on one end side in the longitudinal direction extending in a direction perpendicular to the longitudinal direction of the air conditioning duct 14, and a half portion 24B on the other end side in the longitudinal direction. Is inclined so as to gradually be positioned downward as it moves away from the intermediate portion 24C, which is a connecting portion with the half portion 24A on one end side.
Therefore, in the half portion 24B where the rib 24 is inclined, the dew condensation water on the rib 24B is efficiently guided to a location away from the electronic component 20 in the horizontal direction along the inclination of the rib 24 (half portion 24B). Since the water is drained, the condensed water hardly accumulates in the vicinity of the intermediate portion 24C of the rib 24, which is more advantageous for reliably preventing the condensed water from dripping onto the electronic component 20.

また、本実施の形態では、空調ダクト本体１４Ａと嵌合部１４Ｂとの境の箇所に、上方に向いた段差面１４２０が空調ダクト１４の周方向に沿って延在形成され、段差面１４２０が、結露水を水平方向において電子部品２０から離れた箇所に導くように傾斜している。
そのため、空調ダクト１４の外面１４０４に付着した結露水が下方に移動して段差面１４２０上に移動すると、段差面１４２０に移動した結露水は、段差面１４２０の傾斜に沿って流れ、電子部品２０と水平方向に離れた箇所に移動する。
したがって、空調ユニット１２と空調ダクト１４との結合部の段差面１４２０を利用して結露水を電子部品２０から離れた箇所に導くことができるため、結露水の電子部品２０への滴下を確実に防止する上でより有利となる。 Further, in the present embodiment, a step surface 1420 facing upward is formed extending along the circumferential direction of the air conditioning duct 14 at the boundary between the air conditioning duct main body 14A and the fitting portion 14B. In this case, the water is inclined so as to guide the condensed water to a place away from the electronic component 20 in the horizontal direction.
Therefore, when the dew condensation adhering to the outer surface 1404 of the air conditioning duct 14 moves downward and moves onto the step surface 1420, the dew condensation water that has moved to the step surface 1420 flows along the inclination of the step surface 1420, and the electronic component 20 Move to a location that is far away horizontally.
Therefore, the dew condensation water can be guided to a place away from the electronic component 20 by using the step surface 1420 of the coupling portion between the air conditioning unit 12 and the air conditioning duct 14, so that the dew condensation on the electronic component 20 is reliably ensured. It becomes more advantageous in preventing.

また、本実施の形態では、空調ダクト１４を車体に取り付ける取り付け片２６が結露水を水平方向において電子部品２０から離れた箇所に導くように傾斜している。
そのため、空調ダクト１４の外面１４０４に付着した結露水が下方に移動して取り付け片２６上に移動すると、取り付け片２６に移動した結露水は、取り付け片２６の傾斜に沿って流れ、電子部品２０と水平方向に離れた箇所に移動する。
したがって、取り付け片２６を利用して結露水を電子部品２０から離れた箇所に導くことができるため、結露水の電子部品２０への滴下を確実に防止する上でより有利となる。 Moreover, in this Embodiment, the attachment piece 26 which attaches the air-conditioning duct 14 to a vehicle body inclines so that condensed water may be guide | induced to the location away from the electronic component 20 in the horizontal direction.
Therefore, when the condensed water adhering to the outer surface 1404 of the air conditioning duct 14 moves downward and moves onto the attachment piece 26, the condensed water that has moved to the attachment piece 26 flows along the inclination of the attachment piece 26, and the electronic component 20. Move to a location that is far away horizontally.
Therefore, since the dew condensation water can be guided to a place away from the electronic component 20 by using the attachment piece 26, it is more advantageous in reliably preventing the dew condensation from dropping on the electronic component 20.

また、本実施の形態では、複数のリブ２４は、互いに平行しているので、空調ダクト１４の外面１４０４の限られたスペースにより多くのリブ２４を設けることができ、結露水の空調制御用の制御部２０への滴下を確実に防止する上でより有利となる。   Moreover, in this Embodiment, since the some rib 24 is mutually parallel, many ribs 24 can be provided in the limited space of the outer surface 1404 of the air-conditioning duct 14, and it is for the air conditioning control of condensed water. This is more advantageous in reliably preventing dripping onto the control unit 20.

また、本実施の形態では、図６（Ａ）に示すように、複数のリブ２４は、長手方向の一端側の半部２４Ａが、空調ダクト１４の長手方向と直交する方向に延在し、長手方向の他端側の半部２４Ｂは、一端側の半部２４Ａとの結合箇所である中間部２４Ｃから離れるにつれて次第に下方に位置するように傾斜している場合について説明した。
しかしながら、図６（Ｂ）に示すように、複数のリブ２４は、長手方向の全体が一端から他端に至るにつれて次第に下方に位置するように傾斜していてもよい。
この場合は、複数のリブ２４の上の結露水が傾斜したリブ２４に沿って水平方向において電子部品２０から離れた箇所により効率よく導かれるため、結露水の電子部品２０への滴下を確実に防止する上でより有利となる。
また、図６（Ｃ）に示すように、複数のリブ２４は、長手方向の中間部２４Ｃを境に一端側の半部２４Ａおよび他端側の半部２４Ｂが、それぞれ中間部２４Ｃから離れるにつれて次第に下方に位置するように傾斜していてもよい。
この場合も、複数のリブ２４の上の結露水が傾斜したリブ２４に沿って水平方向において電子部品２０から離れた箇所により効率よく導かれるため、リブ２４の中間部２４Ｃ付近に結露水が溜まることが抑制でき、結露水の電子部品２０への滴下を確実に防止する上でより有利となる。 Moreover, in this Embodiment, as shown to FIG. 6 (A), as for the some rib 24, the half part 24A of the one end side of a longitudinal direction is extended in the direction orthogonal to the longitudinal direction of the air-conditioning duct 14, The case has been described in which the half part 24B on the other end side in the longitudinal direction is inclined so as to be gradually positioned downward as it is separated from the intermediate part 24C, which is a joint portion with the half part 24A on the one end side.
However, as shown in FIG. 6B, the plurality of ribs 24 may be inclined so that the entire longitudinal direction is gradually positioned downward from one end to the other end.
In this case, the dew condensation water on the plurality of ribs 24 is efficiently guided to a place away from the electronic component 20 in the horizontal direction along the inclined ribs 24, so that the dew condensation water is surely dropped onto the electronic component 20. It becomes more advantageous in preventing.
Further, as shown in FIG. 6C, the plurality of ribs 24 are arranged such that the half portion 24A on one end side and the half portion 24B on the other end side are separated from the intermediate portion 24C with the intermediate portion 24C in the longitudinal direction as a boundary. You may incline so that it may be located gradually below.
Also in this case, the dew condensation water on the plurality of ribs 24 is efficiently guided by the portions away from the electronic component 20 in the horizontal direction along the inclined ribs 24, so that the dew condensation water accumulates in the vicinity of the intermediate portion 24C of the ribs 24. This can be suppressed, and it is more advantageous to reliably prevent the condensation water from dripping onto the electronic component 20.

なお、本実施の形態では、複数のリブ２４の長手方向の一端側の半部２４Ａが空調ダクト１４の長手方向と直交する方向に延在し、複数のリブ２４の長手方向の残りの他端側の半部２４Ｂが傾斜しつつ延在する場合について説明したが、複数のリブ２４をそれらの長手方向の全長にわたり空調ダクト１４の長手方向と直交する方向に延在させてもよい。
この場合には、リブ２４が水平方向に延在している場合、結露水はリブ２４上に溜まる。
そして、結露水の量が多くなるにつれ、空調ダクト１４の外面１４０４とリブ２４の上面２４０２との交差部において結露水の親水性によりリブ２４の長手方向に沿って横長状に拡がる。
また、リブ２４が水平方向に対して傾斜して延在している場合、結露水はリブ２４の長手方向で下方に位置する箇所に向けて流れていく。
そして、平面視した場合、リブ２４の長手方向の中間部に電子部品２０が位置するようにリブ２４が延在しているため、結露水の量が多くなるにつれて、何れの場合も電子部品２０と水平方向に離れた箇所において、リブ２４の端部（一端または他端）から下方に滴下して排水され、結露水の電子部品２０（コネクタ部２０Ａ）への滴下が防止される。
また、本実施の形態では、空調ダクト１４の断面形状が矩形枠状である場合について説明したが、空調ダクト１４の断面形状は限定されるものではなく、例えば円形であってもよいことは無論である。 In the present embodiment, the half portion 24A on one end side in the longitudinal direction of the plurality of ribs 24 extends in a direction perpendicular to the longitudinal direction of the air conditioning duct 14, and the other other end in the longitudinal direction of the plurality of ribs 24 is provided. Although the case where the side half 24B extends while being inclined has been described, the plurality of ribs 24 may extend in the direction perpendicular to the longitudinal direction of the air conditioning duct 14 over the entire length in the longitudinal direction.
In this case, when the rib 24 extends in the horizontal direction, the dew condensation water accumulates on the rib 24.
And as the amount of dew condensation water increases, it spreads horizontally along the longitudinal direction of the ribs 24 due to the hydrophilicity of the dew condensation water at the intersection between the outer surface 1404 of the air conditioning duct 14 and the upper surface 2402 of the ribs 24.
In addition, when the rib 24 extends while being inclined with respect to the horizontal direction, the dew condensation water flows toward a position located below in the longitudinal direction of the rib 24.
In plan view, the rib 24 extends so that the electronic component 20 is positioned in the middle in the longitudinal direction of the rib 24. Therefore, as the amount of condensed water increases, in any case, the electronic component 20 In a location that is horizontally separated from the end of the rib 24, it is dropped and drained from the end (one end or the other end) of the rib 24 to prevent the dew condensation water from dripping onto the electronic component 20 (connector portion 20 </ b> A).
Moreover, although the case where the cross-sectional shape of the air-conditioning duct 14 was a rectangular frame shape was demonstrated in this Embodiment, the cross-sectional shape of the air-conditioning duct 14 is not limited, For example, it may of course be circular. It is.

１０ 空調装置
１２ 空調ユニット
１４ 空調ダクト
１４０４ 外面
１４１０ 側面
１４１０Ａ 一方の側面
１４１０Ｂ 他方の側面
１４２０ 段差面
１４Ａ 空調ダクト本体
１４Ｂ 嵌合部
１８ 熱交換器
２０ 電子部品
２４ リブ
２４０２ 上面
２４Ａ 一端側の半部
２４Ｂ 他端側の半部
２６ 取り付け片 DESCRIPTION OF SYMBOLS 10 Air conditioner 12 Air conditioning unit 14 Air conditioning duct 1404 Outer surface 1410 Side surface 1410A One side surface 1410B The other side surface 1420 Stepped surface 14A Air conditioning duct body 14B Fitting part 18 Heat exchanger 20 Electronic component 24 Rib 2402 Upper surface 24A Half part 24B on one end side Half 26 on the other end side

Claims (7)

ブロアおよび熱交換器が収容された空調ユニットと、前記空調ユニットから突設され先端に車室内への吹き出し口が設けられた空調ダクトとを有し、当該空調ダクトの下方に電子部品が配置される車両の空調装置であって、
前記空調ダクトの前記電子部品の上方に位置する箇所の外面に、垂直方向に対して交差する方向に延びる複数のリブが上下に間隔をおいて膨出形成され、
前記リブは、当該リブの長手方向の中間部近傍に電子部品が位置するように延在され、
前記空調ダクトの外面に発生した結露水が当該リブの長手方向に沿って流動可能に構成されている、
ことを特徴とする車両の空調装置。 It has an air conditioning unit in which a blower and a heat exchanger are accommodated, and an air conditioning duct that protrudes from the air conditioning unit and has a blowout opening to the vehicle interior at the tip, and electronic components are arranged below the air conditioning duct. A vehicle air conditioner,
A plurality of ribs extending in the direction intersecting the vertical direction are formed on the outer surface of the location located above the electronic component of the air-conditioning duct bulging at intervals in the vertical direction,
The rib extends so that the electronic component is positioned near the middle portion in the longitudinal direction of the rib,
Condensed water generated on the outer surface of the air conditioning duct is configured to be flowable along the longitudinal direction of the rib,
An air conditioner for a vehicle. 前記リブの長手方向の少なくとも一部は、前記結露水を水平方向において空調ダクト下方に配置された電子部品から離れた箇所に導くように傾斜している、
ことを特徴とする請求項１記載の車両の空調装置。 At least a part of the longitudinal direction of the rib is inclined so as to guide the condensed water to a place away from the electronic component disposed below the air conditioning duct in the horizontal direction.
The vehicle air conditioner according to claim 1. 前記複数のリブは、長手方向の一端から他端に至るにつれて次第に下方に位置するように傾斜している、
ことを特徴とする請求項１または２記載の車両の空調装置。 The plurality of ribs are inclined so as to be gradually positioned downward from one end to the other end in the longitudinal direction.
The air conditioner for a vehicle according to claim 1 or 2. 前記複数のリブは、長手方向の中間部を境にして、一端側の半部または他端側の半部の少なくとも一方の半部が前記中間部から離れるにつれて次第に下方に位置するように傾斜している、
ことを特徴とする請求項１または２記載の車両の空調装置。 The plurality of ribs incline so that at least one half of the half on one end side or the half on the other end side is gradually positioned downward with the middle portion in the longitudinal direction as a boundary. ing,
The air conditioner for a vehicle according to claim 1 or 2. 前記空調ダクトは、上下方向に延設されるダクト本体と、前記ダクト本体の下部に設けられ前記ダクト本体の断面よりも大きい断面で形成され前記空調ユニットの上部が嵌め込まれる下方に開放状の嵌合部とを備え、
前記空調ダクトの外面は、前記ダクト本体の外面と前記嵌合部の外面とで構成され、
前記ダクト本体と前記嵌合部との境の箇所に、上方に向いた段差面が前記空調ダクトの周方向に沿って延在形成され、
前記段差面は、前記結露水を水平方向において前記電子部品から離れた箇所に導くように前記リブと同一方向に傾斜している、
ことを特徴とする請求項１から６の何れか１項記載の車両の空調装置。 The air conditioning duct includes a duct body extending in the vertical direction, and a lower section provided below the duct body, the section being larger than the section of the duct body, and having an open fitting in the lower part where the upper portion of the air conditioning unit is fitted. With joints,
The outer surface of the air conditioning duct is composed of the outer surface of the duct body and the outer surface of the fitting portion,
In the place of the boundary between the duct main body and the fitting portion, a step surface facing upward is formed extending along the circumferential direction of the air conditioning duct,
The step surface is inclined in the same direction as the rib so as to guide the condensed water to a location away from the electronic component in the horizontal direction.
The vehicle air conditioner according to any one of claims 1 to 6, wherein 前記空調ダクトには、前記空調ダクトを車体に取り付けるための取り付け片が膨出形成され、
前記取り付け片は、前記結露水を水平方向において前記電子部品から離れた箇所に導くように傾斜している、
ことを特徴とする請求項１から７の何れか１項記載の車両の空調装置。 In the air conditioning duct, an attachment piece for attaching the air conditioning duct to the vehicle body is bulged,
The mounting piece is inclined so as to guide the condensed water to a location away from the electronic component in the horizontal direction.
The vehicle air conditioner according to any one of claims 1 to 7, characterized in that 前記電子部品は、前記空調ユニットのケースに設けられる空調制御用の電子部品であり、配線ケーブルと接続されるコネクタ部がケース外面から突出するよう設けられており、
前記リブは、前記電子部品の前記コネクタ部の上方に位置するよう延設されている、
ことを特徴とする請求項１から６の何れか１項記載の車両の空調装置。 The electronic component is an electronic component for air conditioning control provided in a case of the air conditioning unit, and a connector portion connected to the wiring cable is provided so as to protrude from the outer surface of the case,
The rib extends so as to be located above the connector portion of the electronic component.
The vehicle air conditioner according to any one of claims 1 to 6, wherein
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