JP2011156944A - Air-conditioning duct structure for vehicle - Google Patents

Air-conditioning duct structure for vehicle Download PDF

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JP2011156944A
JP2011156944A JP2010019298A JP2010019298A JP2011156944A JP 2011156944 A JP2011156944 A JP 2011156944A JP 2010019298 A JP2010019298 A JP 2010019298A JP 2010019298 A JP2010019298 A JP 2010019298A JP 2011156944 A JP2011156944 A JP 2011156944A
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conditioning duct
air
recesses
duct
vehicle
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Yasunobu Yamazaki
泰伸 山崎
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To suppress dropping of dew condensation water from an air-conditioning duct. <P>SOLUTION: This air-conditioning duct structure 10 includes a side air-conditioning duct part 20 communicated with an outlet formed in a cabin, and many recessed parts 22 formed on the surfaces of an upper wall part 20A and a lower wall part 20B of the side air-conditioning duct part 20 to form each recessed spherical surface. By this constitution, dew condensation water is dispersed and held in the many recessed parts 22 when dew is condensed on the surfaces of the upper wall part 20A and the lower wall part 20B. In this case, each of the many recessed parts 22 is formed into the recessed spherical shape and is increased in its surface area than that in a recessed part formed in constant depth, for instance. Then, the surface tension of the dew condensation water in each recessed part 22 is increased, suppressing the dropping of dew condensation water from the side air-conditioning duct part 20. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、車両用空調ダクト構造に関する。   The present invention relates to a vehicle air conditioning duct structure.

特許文献１には、空調ダクトの表面に格子状ビードが形成され、この空調ダクトの表面に付着した結露水を格子状ビードで構成された複数の凹部で分散保持する構造が開示されている。   Patent Document 1 discloses a structure in which a lattice-shaped bead is formed on the surface of an air-conditioning duct and the condensed water adhering to the surface of the air-conditioning duct is dispersedly held by a plurality of concave portions formed of the lattice-shaped beads.

特開平７−２５７１４９号公報JP 7-257149 A 特開２００４−９０７０５号公報JP 2004-90705 A

しかしながら、特許文献１に記載の例では、各凹部が深さ一定に形成されており、この凹部の底部が平面状を成すため、結露水が凹部の隅部等に纏まり易く、この纏まった結露水が空調ダクトから滴下する虞がある。   However, in the example described in Patent Document 1, each concave portion is formed with a constant depth, and the bottom of the concave portion has a flat shape. Therefore, the condensed water tends to be collected at the corners of the concave portion. There is a risk of water dripping from the air conditioning duct.

本発明は、上記課題に鑑みてなされたものであって、空調ダクトから結露水が滴下することを抑制できる車両用空調ダクト構造を提供することを目的とする。   This invention is made | formed in view of the said subject, Comprising: It aims at providing the vehicle air-conditioning duct structure which can suppress dew condensation water dripping from an air-conditioning duct.

前記課題を解決するために、請求項１に記載の車両用空調ダクト構造は、車室に形成された吹出口と連通されたダクト部と、前記ダクト部の少なくとも一部の表面に形成され、それぞれ凹球面状を成す多数の凹部と、を備えている。   In order to solve the above-mentioned problem, the vehicle air-conditioning duct structure according to claim 1 is formed on a surface of at least a part of the duct portion communicated with the air outlet formed in the passenger compartment, A plurality of concave portions each having a concave spherical shape.

この車両用空調ダクト構造によれば、ダクト部の少なくとも一部の表面には、多数の凹部が形成されている。従って、ダクト部の表面に結露が生じた場合には、多数の凹部で結露水が分散保持される。   According to this vehicle air-conditioning duct structure, a large number of recesses are formed on at least a part of the surface of the duct portion. Therefore, when dew condensation occurs on the surface of the duct part, the dew condensation water is dispersed and held in a large number of recesses.

ここで、この多数の凹部は、それぞれ凹球面状を成しており、例えば深さ一定に形成された凹部に比して表面積が増加されている。従って、各凹部において結露水の表面張力が増大されるので、空調ダクトから結露水が滴下することを抑制することができる。   Here, each of the plurality of concave portions has a concave spherical shape, and the surface area is increased as compared with, for example, a concave portion formed with a constant depth. Accordingly, since the surface tension of the dew condensation water is increased in each recess, it is possible to suppress the dew condensation water from dropping from the air conditioning duct.

請求項２に記載の車両用空調ダクト構造は、請求項１に記載の車両用空調ダクト構造において、前記複数の凹部が、互いに並列する第一群の凹部と第二群の凹部との間に直線状の折れ線が存在しないように配列された構成とされている。   The vehicle air-conditioning duct structure according to claim 2 is the vehicle air-conditioning duct structure according to claim 1, wherein the plurality of recesses are between a first group of recesses and a second group of recesses that are parallel to each other. It is set as the structure arranged so that a linear broken line may not exist.

この車両用空調ダクト構造によれば、互いに並列する第一群の凹部と第二群の凹部との間に直線状の折れ線が存在しないので、ダクト部の折れを抑制して、ダクト部の剛性を向上させることができる。   According to this vehicle air-conditioning duct structure, since there is no linear fold line between the first group of concave portions and the second group of concave portions that are parallel to each other, the duct portion is prevented from being folded, and the duct portion rigidity is reduced. Can be improved.

請求項３に記載の車両用空調ダクト構造は、請求項１又は請求項２に記載の車両用空調ダクト構造において、前記ダクト部が、車両上下方向と交差する方向に延在され、前記ダクト部の側壁部に、前記ダクト部の延在方向に沿って樋が形成された構成とされている。   The vehicle air-conditioning duct structure according to claim 3 is the vehicle air-conditioning duct structure according to claim 1 or 2, wherein the duct portion extends in a direction intersecting with the vehicle vertical direction, and the duct portion. In the side wall portion, a ridge is formed along the extending direction of the duct portion.

この車両用空調ダクト構造によれば、ダクト部の側壁部には、このダクト部の延在方向に沿って樋が形成されているので、ダクト部における上壁部に結露が生じ、この上壁部から結露水が流れ落ちた場合でも、この結露水を樋によって受け止めることができる。   According to this vehicle air-conditioning duct structure, since the ridges are formed on the side wall portion of the duct portion along the extending direction of the duct portion, condensation occurs on the upper wall portion of the duct portion. Even when the condensed water flows down from the section, the condensed water can be received by the dredger.

請求項４に記載の車両用空調ダクト構造は、請求項３に記載の車両用空調ダクト構造において、前記多数の凹部が、前記ダクト部の少なくとも上壁部の一部に形成され、前記樋の少なくとも一部が、前記上壁部の一部と前記ダクト部の延在方向にオーバラップされた構成とされている。   The vehicle air-conditioning duct structure according to claim 4 is the vehicle air-conditioning duct structure according to claim 3, wherein the plurality of recesses are formed in a part of at least an upper wall portion of the duct portion. At least a part is configured to overlap with a part of the upper wall part in the extending direction of the duct part.

この車両用空調ダクト構造によれば、ダクト部の少なくとも上壁部の一部（上壁部における多数の凹部が形成された領域）と、樋とがダクト部の延在方向にオーバラップされている。従って、例えば、車両走行に伴う振動や、結露水が凹部の許容量を超えるなどの理由によって、上壁部に形成された多数の凹部から結露水が流出し、この結露水が上壁部から流れ落ちた場合でも、この結露水を樋によって受け止めることができる。   According to this vehicle air-conditioning duct structure, at least a part of the upper wall portion of the duct portion (a region where a large number of recesses are formed in the upper wall portion) and the heel overlap with each other in the extending direction of the duct portion. Yes. Therefore, for example, due to vibrations caused by running of the vehicle and the amount of condensed water exceeding the allowable amount of the recessed portion, the condensed water flows out from a number of recessed portions formed in the upper wall portion, and this condensed water is discharged from the upper wall portion. Even if it flows down, the condensed water can be received by the dredger.

請求項５に記載の車両用空調ダクト構造は、請求項１〜請求項４のいずれか一項に記載の車両用空調ダクト構造において、前記ダクト部の少なくとも一部の表面に、凸状を成すと共に、前記多数の凹部を複数の凹部毎に分けて囲む複数の格子部を有する格子状ビードが形成された構成とされている。   The vehicle air-conditioning duct structure according to claim 5 is the vehicle air-conditioning duct structure according to any one of claims 1 to 4, wherein at least a part of the surface of the duct portion has a convex shape. At the same time, a grid-shaped bead having a plurality of grid portions surrounding the large number of recesses separately for each of the plurality of recesses is formed.

この車両用空調ダクト構造によれば、ダクト部の少なくとも一部の表面には、凸状の格子状ビードが形成されており、この格子状ビードに形成された複数の格子部は、多数の凹部を複数の凹部毎に分けて囲んでいる。従って、例えば、凹部で保持できない結露水（例えば、凹部から流出した結露水）については、格子部で保持でき、また、格子部で保持できない結露水（例えば、格子部から離脱した結露水）については、凹部で保持することができ、相乗効果を得ることができる。   According to this vehicle air-conditioning duct structure, convex lattice-shaped beads are formed on at least a part of the surface of the duct portion, and the plurality of lattice portions formed on the lattice-shaped beads include a large number of concave portions. Is divided into a plurality of recesses. Therefore, for example, dew condensation water that cannot be retained in the recesses (for example, dew condensation water that has flowed out of the recesses) can be retained in the lattice portion, and dew condensation water that cannot be retained in the lattice portions (for example, dew condensation water that has detached from the lattice portion) Can be held by the recesses, and a synergistic effect can be obtained.

以上詳述したように、本発明によれば、空調ダクトから結露水が滴下することを抑制することができる。   As described above in detail, according to the present invention, it is possible to suppress the condensation water from dripping from the air conditioning duct.

本発明の一実施形態に係る車両用空調ダクト構造が適用された空調ダクトの要部斜視図である。It is a principal part perspective view of the air-conditioning duct to which the vehicle air-conditioning duct structure which concerns on one Embodiment of this invention was applied. 図１に示されるサイド空調ダクト部を２−２線断面で切断した要部拡大断面図である。It is the principal part expanded sectional view which cut | disconnected the side air-conditioning duct part shown by FIG. 1 in the 2-2 line cross section. 本発明の一実施形態に係る車両用空調ダクト構造の第一変形例を示す要部拡大平面図である。It is a principal part enlarged plan view which shows the 1st modification of the air-conditioning duct structure for vehicles which concerns on one Embodiment of this invention. 本発明の一実施形態に係る車両用空調ダクト構造の第二変形例を示す要部拡大斜視図である。It is a principal part expansion perspective view which shows the 2nd modification of the air-conditioning duct structure for vehicles which concerns on one Embodiment of this invention. 本発明の一実施形態に係る車両用空調ダクト構造の第三変形例を示す要部拡大斜視図である。It is a principal part expansion perspective view which shows the 3rd modification of the air-conditioning duct structure for vehicles which concerns on one Embodiment of this invention.

以下、図面を参照しながら、本発明の一実施形態について説明する。   An embodiment of the present invention will be described below with reference to the drawings.

なお、各図において示される矢印ＵＰ、矢印ＲＲ、矢印ＯＵＴは、車両上下方向上側、車両前後方向後側、車両幅方向外側（左側）をそれぞれ示している。   In each figure, an arrow UP, an arrow RR, and an arrow OUT indicate the vehicle vertical direction upper side, the vehicle longitudinal direction rear side, and the vehicle width direction outer side (left side).

図１に示される空調ダクト１２は、本発明の一実施形態に係る車両用空調ダクト構造１０が適用されたものであり、例えば、図示しないインストルメントパネルに対する車両下側に配置される。   The air-conditioning duct 12 shown in FIG. 1 is one to which the vehicle air-conditioning duct structure 10 according to one embodiment of the present invention is applied. For example, the air-conditioning duct 12 is disposed on the vehicle lower side with respect to an instrument panel (not shown).

この空調ダクト１２は、例えばブロー成形によって形成された樹脂成形品とされており、上側パネル１４と下側パネル１６とを有して構成されている。この上側パネル１４と下側パネル１６とは、一対のフランジ部１８にて互いに接合されている。   The air conditioning duct 12 is a resin molded product formed by blow molding, for example, and includes an upper panel 14 and a lower panel 16. The upper panel 14 and the lower panel 16 are joined to each other by a pair of flange portions 18.

また、この空調ダクト１２には、ダクト部としてのサイド空調ダクト部２０が形成されている。このサイド空調ダクト部２０は、上述のインストルメントパネルに形成された吹出口と空調装置に形成された送出口（いずれも不図示）とを連通するものであり、車両上下方向と交差する方向の一例として、水平方向に延在されている。   Further, the air conditioning duct 12 is formed with a side air conditioning duct portion 20 as a duct portion. This side air-conditioning duct unit 20 communicates the air outlet formed in the above-mentioned instrument panel and the outlet (not shown) formed in the air-conditioning apparatus, in the direction intersecting the vehicle vertical direction. As an example, it extends in the horizontal direction.

このサイド空調ダクト部２０における上壁部２０Ａ及び下壁部２０Ｂの略全体の表面には、多数の凹部２２が形成されている。この多数の凹部２２は、それぞれ平面視にて円形状に形成されると共に、図２に示されるように、それぞれ凹球面状（半球曲面状）を成している。   A large number of concave portions 22 are formed on substantially the entire surface of the upper wall portion 20A and the lower wall portion 20B of the side air conditioning duct portion 20. Each of the plurality of concave portions 22 is formed in a circular shape in plan view, and has a concave spherical shape (hemispherical curved surface shape) as shown in FIG.

次に、本発明の一実施形態の作用及び効果について説明する。   Next, the operation and effect of one embodiment of the present invention will be described.

この車両用空調ダクト構造１０によれば、図１に示されるように、サイド空調ダクト部２０における上壁部２０Ａ及び下壁部２０Ｂの略全体の表面には、多数の凹部２２が形成されている。従って、上壁部２０Ａ及び下壁部２０Ｂの表面に結露が生じた場合には、多数の凹部２２で結露水が分散保持される。   According to the vehicle air conditioning duct structure 10, as shown in FIG. 1, a large number of recesses 22 are formed on substantially the entire surface of the upper wall portion 20 </ b> A and the lower wall portion 20 </ b> B in the side air conditioning duct portion 20. Yes. Therefore, when dew condensation occurs on the surfaces of the upper wall part 20A and the lower wall part 20B, the dew condensation water is dispersedly held by the numerous recesses 22.

ここで、この多数の凹部２２は、図２に示されるように、それぞれ凹球面状を成しており、例えば深さ一定に形成された凹部に比して表面積が増加されている。従って、各凹部２２において結露水の表面張力が増大されるので、サイド空調ダクト部２０から結露水が滴下することを抑制することができる。   Here, as shown in FIG. 2, each of the many recesses 22 has a concave spherical shape, and has a surface area increased as compared with, for example, a recess formed at a constant depth. Therefore, since the surface tension of the dew condensation water is increased in each recess 22, it is possible to suppress the dew condensation water from dropping from the side air conditioning duct unit 20.

また、この多数の凹部２２がビードの役割を果たすので、図１に示される上壁部２０Ａ及び下壁部２０Ｂの面剛性、ひいては、サイド空調ダクト部２０の剛性を向上させることもできる。   Moreover, since these many recessed parts 22 play the role of a bead, the surface rigidity of 20 A of upper wall parts and lower wall part 20B which are shown by FIG. 1, and also the rigidity of the side air-conditioning duct part 20 can also be improved.

なお、各凹部２２の半径は、所望の表面張力が得られるように（結露水を保持できるように）、例えば、この凹部２２の表面の濡れ性等を考慮して設定される。   In addition, the radius of each recessed part 22 is set in consideration of the wettability of the surface of this recessed part 22 etc., for example so that desired surface tension may be obtained (so that condensed water can be hold | maintained).

次に、本発明の一実施形態の変形例について説明する。   Next, a modification of one embodiment of the present invention will be described.

上記実施形態において、多数の凹部２２は、上壁部２０Ａ及び下壁部２０Ｂの略全体の表面に形成されていたが、上壁部２０Ａ及び下壁部２０Ｂの一部の表面に形成されていても良い。   In the above-described embodiment, the multiple recesses 22 are formed on substantially the entire surface of the upper wall portion 20A and the lower wall portion 20B, but are formed on a part of the surfaces of the upper wall portion 20A and the lower wall portion 20B. May be.

また、多数の凹部２２は、上壁部２０Ａ及び下壁部２０Ｂだけでなく、この上壁部２０Ａと下壁部２０Ｂの両側を連結する一対の側壁部２０Ｃに形成されていても良い。   Further, the multiple recesses 22 may be formed not only on the upper wall portion 20A and the lower wall portion 20B but also on a pair of side wall portions 20C that connect both sides of the upper wall portion 20A and the lower wall portion 20B.

また、多数の凹部２２は、サイド空調ダクト部２０に形成されていたが、空調ダクト１２に形成されたその他のダクト部（例えば、図示しないセンタ空調ダクト部）に形成されていても良い。   Moreover, although the many recessed parts 22 were formed in the side air-conditioning duct part 20, you may form in the other duct part (for example, center air-conditioning duct part which is not shown in figure) formed in the air-conditioning duct 12. FIG.

また、多数の凹部２２は、次のように配列されていても良い。つまり、図３に示される変形例において、複数の凹部２２は、互いに並列する第一群の凹部２２（例えば、四角Ａで囲まれた縦方向に並ぶ複数の凹部２２）と第二群の凹部２２（例えば、四角Ｂで囲まれた縦方向に並ぶ複数の凹部２２）との間に直線状の折れ線が存在しないように配列されている。   Moreover, the many recessed parts 22 may be arranged as follows. That is, in the modification shown in FIG. 3, the plurality of recesses 22 includes a first group of recesses 22 (for example, a plurality of recesses 22 arranged in a vertical direction surrounded by a square A) and a second group of recesses. 22 (for example, a plurality of concave portions 22 arranged in the vertical direction surrounded by a square B) are arranged so that no linear broken line exists.

すなわち、換言すれば、第一群の凹部２２と第二群の凹部２２との間に境界線Ｌを設定した場合に、この境界線Ｌ上に第一群に属する各凹部２２の一部と第二群に属する各凹部２２の一部が位置するようになっている。   That is, in other words, when a boundary line L is set between the first group of recesses 22 and the second group of recesses 22, a part of each recess 22 belonging to the first group on the boundary line L A part of each recess 22 belonging to the second group is located.

なお、この場合における互いに並列する第一群の凹部２２と第二群の凹部２２とは、上述の四角Ａで囲まれた縦方向に並ぶ複数の凹部２２と四角Ｂで囲まれた縦方向に並ぶ複数の凹部２２だけでなく、例えば、四角Ｃで囲まれた斜め方向に並ぶ複数の凹部２２と四角Ｄで囲まれた斜め方向に並ぶ複数の凹部２２や、特に図示しないが、横方向に並ぶ複数の凹部２２とこれと並列する横方向に並ぶ複数の凹部２２や、四角Ｃ，Ｄで囲まれた複数の凹部２２と異なる斜め方向に並ぶ複数の凹部２２とこれと並列する斜め方向に並ぶ複数の凹部２２も当てはまる。   In this case, the first group of recesses 22 and the second group of recesses 22 parallel to each other are a plurality of recesses 22 arranged in the vertical direction surrounded by the square A and a vertical direction surrounded by the square B. In addition to the plurality of recesses 22 arranged, for example, a plurality of recesses 22 arranged in an oblique direction surrounded by a square C and a plurality of recesses 22 arranged in an oblique direction surrounded by a square D, and although not particularly shown, A plurality of recesses 22 arranged side by side and a plurality of recesses 22 arranged in parallel in the lateral direction, or a plurality of recesses 22 arranged in an oblique direction different from the plurality of recesses 22 surrounded by the squares C and D, and in an oblique direction parallel to this The plurality of recessed portions 22 arranged also applies.

このように構成されていると、上述の互いに並列する第一群の凹部２２と第二群の凹部２２との間に直線状の折れ線が存在しないので、サイド空調ダクト部２０の折れを抑制して、サイド空調ダクト部２０の剛性を確保することができる。   When configured in this manner, since there is no linear fold line between the first group of recesses 22 and the second group of recesses 22 that are parallel to each other, folding of the side air conditioning duct unit 20 is suppressed. Thus, the rigidity of the side air conditioning duct portion 20 can be ensured.

また、サイド空調ダクト部２０の側壁部２０Ｃに形成されたフランジ部１８は、次のように形成されていても良い。   Moreover, the flange part 18 formed in the side wall part 20C of the side air conditioning duct part 20 may be formed as follows.

つまり、図４に示される変形例では、フランジ部１８の突端部に、車両上側に突出する突出部２４が形成されている。また、このフランジ部１８は、サイド空調ダクト部２０の延在方向に沿って形成されており、樋としての役割を果たしている。   That is, in the modification shown in FIG. 4, the protruding portion 24 that protrudes upward of the vehicle is formed at the protruding end portion of the flange portion 18. Moreover, this flange part 18 is formed along the extension direction of the side air-conditioning duct part 20, and has played the role as a collar.

また、多数の凹部２２及びフランジ部１８は、サイド空調ダクト部２０に全長に亘って形成されており、上壁部２０Ａにおける多数の凹部２２が形成された領域と、フランジ部１８の全体とがサイド空調ダクト部２０の延在方向（長手方向）にオーバラップされている。   In addition, the numerous recesses 22 and the flange portions 18 are formed over the entire length of the side air conditioning duct portion 20, and the region where the numerous recesses 22 are formed in the upper wall portion 20 </ b> A and the entire flange portion 18. The side air conditioning duct portion 20 is overlapped in the extending direction (longitudinal direction).

このように構成されていると、例えば、車両走行に伴う振動や、結露水が凹部２２の許容量を超えるなどの理由によって、上壁部２０Ａに形成された多数の凹部２２から結露水が流出し、この結露水が上壁部２０Ａから流れ落ちた場合でも、この結露水をフランジ部１８によって受け止めることができる。   With such a configuration, the dew condensation water flows out from the large number of recesses 22 formed in the upper wall portion 20A due to, for example, vibration associated with vehicle running or the dew condensation water exceeding the allowable amount of the recesses 22. Even when the condensed water flows down from the upper wall portion 20 </ b> A, the condensed water can be received by the flange portion 18.

また、空調ダクト１２がブロー成形される際に形成されるフランジ部１８を樋として利用しているので、新たな部材の追加を抑制して、コストアップを抑制することができる。   Moreover, since the flange part 18 formed when the air-conditioning duct 12 is blow-molded is used as a bag, the addition of a new member can be suppressed and the cost increase can be suppressed.

なお、サイド空調ダクト部２０の側壁部２０Ｃに、フランジ部１８以外の専用の樋が形成されても良い。   Note that a dedicated bag other than the flange portion 18 may be formed on the side wall portion 20 </ b> C of the side air conditioning duct portion 20.

また、この場合に、この樋は、上述のフランジ部１８と同様に、その全体が上壁部２０Ａにおける多数の凹部２２が形成された領域とサイド空調ダクト部２０の延在方向（長手方向）にオーバラップするように形成されていても良い。   Further, in this case, like the above-described flange portion 18, this flange is entirely formed in the region in which a large number of recesses 22 are formed in the upper wall portion 20 </ b> A and the extending direction (longitudinal direction) of the side air conditioning duct portion 20. It may be formed so as to overlap.

また、多数の凹部２２が上壁部２０Ａにおけるサイド空調ダクト部２０の延在方向の一部に形成された場合、この樋は、その一部が上述の上壁部２０Ａにおける多数の凹部２２が形成された領域とサイド空調ダクト部２０の延在方向（長手方向）にオーバラップするように形成されていても良い。   Moreover, when many recessed parts 22 are formed in a part of extension direction of the side air-conditioning duct part 20 in 20 A of upper wall parts, this part of the many recessed parts 22 in the above-mentioned upper wall part 20A has this ridge. You may form so that the formed area | region and the extending direction (longitudinal direction) of the side air conditioning duct part 20 may overlap.

なお、この樋は、その一部が上述の上壁部２０Ａにおける多数の凹部２２が形成された領域とオーバラップするように形成されていることが望ましいが、上壁部２０Ａにおける多数の凹部２２が形成された領域とサイド空調ダクト部２０の延在方向にずれて設けられていても良い。   It should be noted that it is desirable that the ridge is formed so that a part thereof overlaps the region where the numerous recesses 22 are formed in the upper wall portion 20A described above, but the numerous recesses 22 in the upper wall portion 20A. May be provided so as to be shifted in the extending direction of the side air-conditioning duct section 20.

また、上壁部２０Ａの表面における多数の凹部２２が形成された領域には、図５に示されるように、凸状の格子状ビード２６が形成されていても良い。この格子状ビード２６は、それぞれ縦枠２８Ａと横枠２８Ｂとによって平面視四角形状に形成された複数の格子部２８を有しており、この複数の格子部２８は、多数の凹部２２を複数の凹部２２毎に分けて囲んでいる。   Further, as shown in FIG. 5, convex grid beads 26 may be formed in a region where a large number of concave portions 22 are formed on the surface of the upper wall portion 20 </ b> A. This lattice-shaped bead 26 has a plurality of lattice portions 28 each formed in a square shape in plan view by a vertical frame 28A and a horizontal frame 28B, and the plurality of lattice portions 28 includes a plurality of concave portions 22. Each of the recesses 22 is enclosed separately.

このように構成されていると、例えば、凹部２２で保持できない結露水（例えば、凹部２２から流出した結露水）については、格子部２８で保持でき、また、格子部２８で保持できない結露水（例えば、格子部２８から離脱した結露水）については、凹部２２で保持することができ、相乗効果を得ることができる。   With this configuration, for example, dew condensation water that cannot be retained by the recesses 22 (for example, dew condensation water that has flowed out of the recesses 22) can be retained by the lattice unit 28, and dew condensation water that cannot be retained by the lattice unit 28 ( For example, the dew condensation water separated from the lattice portion 28 can be held in the recess 22 and a synergistic effect can be obtained.

なお、複数の格子部２８は、平面視四角形状に形成される以外に、その他の形状（例えば、平面視六角形状等）に形成されても良い。   The plurality of lattice portions 28 may be formed in other shapes (for example, a hexagonal shape in plan view) in addition to being formed in a square shape in plan view.

また、空調ダクト１２は、ブロー成形によって形成されていたが、その他にも、例えば、射出成形等によって形成されていても良い。   The air conditioning duct 12 is formed by blow molding, but may be formed by, for example, injection molding or the like.

また、車両用空調ダクト構造１０は、インストルメントパネルの車両下側に配置される空調ダクト１２以外に、車室内に配置されるその他の空調ダクトに適用されても良い。   Further, the vehicle air-conditioning duct structure 10 may be applied to other air-conditioning ducts arranged in the vehicle interior in addition to the air-conditioning duct 12 arranged on the lower side of the instrument panel.

また、サイド空調ダクト部２０は、水平方向に延在されていたが、車両上下方向と交差する方向の他の例として、水平方向に対して傾斜する方向に延在されていても良い。   Moreover, although the side air-conditioning duct part 20 was extended in the horizontal direction, you may be extended in the direction which inclines with respect to a horizontal direction as another example of the direction which cross | intersects a vehicle up-down direction.

なお、上記複数の変形例のうち組み合わせ可能な変形例は、適宜組み合わされて実施可能である。   In addition, the modification which can be combined among the said several modification can be implemented combining suitably.

以上、本発明の一実施形態について説明したが、本発明は、上記に限定されるものでなく、上記以外にも、その主旨を逸脱しない範囲内において種々変形して実施可能であることは勿論である。   Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

１０ 車両用空調ダクト構造
１２ 空調ダクト
１８ フランジ部（樋）
２０ サイド空調ダクト部（ダクト部）
２２ 凹部
２６ 格子状ビード
２８ 格子部 10 Vehicle air-conditioning duct structure 12 Air-conditioning duct 18 Flange (樋)
20 Side air conditioning duct part (duct part)
22 Concave portion 26 Lattice bead 28 Lattice portion

Claims (5)

車室に形成された吹出口と連通されたダクト部と、
前記ダクト部の少なくとも一部の表面に形成され、それぞれ凹球面状を成す多数の凹部と、
を備えた車両用空調ダクト構造。 A duct portion communicating with the air outlet formed in the passenger compartment;
A plurality of concave portions formed on at least a part of the surface of the duct portion, each having a concave spherical shape;
Air conditioning duct structure for vehicles equipped with. 前記複数の凹部は、互いに並列する第一群の凹部と第二群の凹部との間に直線状の折れ線が存在しないように配列されている、
請求項１に記載の車両用空調ダクト構造。 The plurality of recesses are arranged so that there is no linear broken line between the first group of recesses and the second group of recesses parallel to each other,
The vehicle air-conditioning duct structure according to claim 1. 前記ダクト部は、車両上下方向と交差する方向に延在され、
前記ダクト部の側壁部には、前記ダクト部の延在方向に沿って樋が形成されている、
請求項１又は請求項２に記載の車両用空調ダクト構造。 The duct portion extends in a direction intersecting the vehicle vertical direction,
On the side wall portion of the duct portion, ridges are formed along the extending direction of the duct portion.
The vehicle air-conditioning duct structure according to claim 1 or 2. 前記多数の凹部は、前記ダクト部の少なくとも上壁部の一部に形成され、
前記樋の少なくとも一部は、前記上壁部の一部と前記ダクト部の延在方向にオーバラップされている、
請求項３に記載の車両用空調ダクト構造。 The plurality of recesses are formed in at least a part of the upper wall portion of the duct portion,
At least a part of the flange is overlapped with a part of the upper wall part in the extending direction of the duct part,
The vehicle air-conditioning duct structure according to claim 3. 前記ダクト部の少なくとも一部の表面には、凸状を成すと共に、前記多数の凹部を複数の凹部毎に分けて囲む複数の格子部を有する格子状ビードが形成されている、
請求項１〜請求項４のいずれか一項に記載の車両用空調ダクト構造。 At least a part of the surface of the duct portion is formed with a lattice-shaped bead having a plurality of lattice portions that form a convex shape and divide the multiple concave portions into a plurality of concave portions,
The vehicle air-conditioning duct structure according to any one of claims 1 to 4.
JP2010019298A 2010-01-29 2010-01-29 Air-conditioning duct structure for vehicle Pending JP2011156944A (en)

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