JP4100251B2

JP4100251B2 - Vehicle front end structure

Info

Publication number: JP4100251B2
Application number: JP2003140502A
Authority: JP
Inventors: 教久笹野
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2003-05-19
Filing date: 2003-05-19
Publication date: 2008-06-11
Anticipated expiration: 2023-05-19
Also published as: DE102004024151A1; DE102004024151B4; JP2004338672A

Description

【０００１】
【発明の属する技術分野】
本発明は車両の前端構造に関するもので、ラジエータ及びコンデンサのフロントエンドパネルへの取付構造に適用して有効である。
【０００２】
【従来の技術】
ラジエータは、通常、フロントエンドパネル等の車両ボディに設けられた挿入穴に、ラジエータに設けられた取付ピンを挿入することにより車両ボディに組み付けられている（例えば、特許文献１参照）。
【０００３】
このとき、特許文献１に記載の発明では、挿入穴を車両後方側が開放されたＵ字状とすることにより、衝突事故時に取付ピンが車両後方側に脱落し易くして、ラジエータフロントエンドパネルが破損してしまうことを防止している。
【０００４】
【特許文献１】
特開２００１−１８７５８８号公報
【０００５】
【発明が解決しようとする課題】
しかし、特許文献１に記載の発明では、挿入穴を一端側が開放されたＵ字状としているので、取付ピンを挿入穴に装着した後、挿入穴の開放側をストッパ等の閉塞手段にて閉塞する必要がある。
【０００６】
したがって、部品点数及び組み付け工数の増大を招くので、車両前端構造、つまり車両の製造原価上昇を招く。
【０００７】
本発明は、上記点に鑑み、第１には、従来と異なる新規な車両の前端構造を提供し、第２には、部品点数及び組み付け工数の増大を抑制しつつ、ラジエータ等の車両前端側に搭載される熱交換器の組み付け作業性を向上させることを目的とする。
【０００８】
【課題を解決するための手段】
本発明は、上記目的を達成するために、請求項１に記載の発明では、第１熱交換器（１）と、第１熱交換器（１）より車両前方側に搭載された第２熱交換器（２）と、第１、２熱交換器（１、２）が組み付けられたフロントエンドパネル（４）とを備え、第１熱交換器（１）の端部には、第１熱交換器（１）をフロントエンドパネル（４）に組み付けるための取付用突起部（１ｃ）が設けられ、フロントエンドパネル（４）には、取付用突起部（１ｃ）が挿入される第１挿入穴（４ｆ）が設けられ、第１挿入穴（４ｆ）は、車両前方側が開放され、かつ、車両後方側が閉じた略Ｕ字状の穴であり、さらに、第１熱交換器（１）の車両前方側への最大変位量は、第２熱交換器（２）により規制されており、前記フロントエンドパネルの上下方向における第１挿入穴（４ｆ）と反対側には、取付用突起部（１ｃ）が挿入される開放部が無い閉じた第２挿入穴（４ｇ）が設けられており、第２熱交換器（２）に設けられた取付用突起部（２ｃ）が挿入される挿入穴のうち、車両前方側が開放され、かつ、車両後方側が閉じた略Ｕ字状の第３挿入穴（４ｈ）は、前記フロントエンドパネルの上下方向における第１挿入穴（４ｆ）と反対側に設けられていることを特徴とする。
【０００９】
これにより、第１熱交換器（１）の取付用突起部（１ｃ）が第１挿入穴（４ｆ）から脱落してしまうことを防止できる。したがって、第１挿入穴（４ｆ）にストッパ等を設けることなく、第１熱交換器（１）をフロントエンドパネル（４）に組み付けることができるので、部品点数及び組み付け工数の増大を抑制しつつ、車両前端側に搭載される熱交換器の組み付け作業性を向上させることができる。さらに、車両前方側が開放された第１挿入穴（４ｆ）及び第３挿入穴（４ｈ）が車両前方側から見て同一側に設けられものに比べて、フロントエンドパネル（４）の強度低下を小さくすることができる。
【００１０】
請求項２に記載の発明では、第１熱交換器（１）と、第１熱交換器（１）より車両前方側に搭載された第２熱交換器（２）とを備え、第１熱交換器（１）の端部には、第１熱交換器（１）を車両ボディ（４）に組み付けるための取付用突起部（１ｃ）が設けられ、車両ボディ（４）には、取付用突起部（１ｃ）が挿入される第１挿入穴（４ｆ）が設けられ、第１挿入穴（４ｆ）は、車両前方側が開放され、かつ、車両後方側が閉じた略Ｕ字状の穴であり、さらに、第１熱交換器（１）の車両前方側への最大変位量は、第２熱交換器（２）により規制されており、前記車両ボディの上下方向における第１挿入穴（４ｆ）と反対側には、取付用突起部（１ｃ）が挿入される開放部が無い閉じた第２挿入穴（４ｇ）が設けられており、第２熱交換器（２）に設けられた取付用突起部（２ｃ）が挿入される挿入穴のうち、車両前方側が開放され、かつ、車両後方側が閉じた略Ｕ字状の第３挿入穴（４ｈ）は、前記車両ボディの上下方向における第１挿入穴（４ｆ）と反対側に設けられていることを特徴とする。
【００１１】
これにより、第１熱交換器（１）の取付用突起部（１ｃ）が第１挿入穴（４ｆ）から脱落してしまうことを防止できる。したがって、第１挿入穴（４ｆ）にストッパ等を設けることなく、第１熱交換器（１）を車両ボディ（４）に組み付けることができるので、部品点数及び組み付け工数の増大を抑制しつつ、車両前端側に搭載される熱交換器の組み付け作業性を向上させることができる。さらに、車両前方側が開放された第１挿入穴（４ｆ）及び第３挿入穴（４ｈ）が車両前方側から見て同一側に設けられものに比べて、車両ボディ（４）の強度低下を小さくすることができる。
【００１５】
請求項３に記載の発明では、第２熱交換器（２）を挟んで第３挿入穴（４ｈ）と反対側には、第２熱交換器（２）の取付用突起部（１ｃ）が挿入される開放部が無い閉じた第４挿入穴（４ｊ）が設けられていることを特徴とするものである。
【００１６】
請求項４に記載の発明では、第３挿入穴（４ｈ）の開放側を閉塞するストッパ部材（５）が装着されていることを特徴とするものである。
【００１７】
請求項５に記載の発明では、第２熱交換器（２）に空気を導く導風ダクト部材（７）にストッパ部材（５）が設けられていることを特徴とするものである。
【００１８】
請求項６に記載の発明では、第１挿入穴（４ｆ）の開放側には、取付用突起部（１ｃ）が第１挿入穴（４ｆ）から抜けることを抑制する抜け抑制手段（６）が設けられていることを特徴とするものである。
【００１９】
因みに、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。
【００２０】
【発明の実施の形態】
（第１実施形態）
図１は本実施形態に係る車両の前端構造を示す分解斜視図であり、図２は図１のＡ−Ａ断面図であり、図３は図１のＢ−Ｂ断面図である。
【００２１】
図１中、ラジエータ１はエンジン冷却水と外気とを熱交換してエンジン冷却水を冷却する第１熱交換器であり、コンデンサ２は蒸気圧縮式冷凍機（車両用空調装置）内を循環する冷媒と外気とを熱交換して冷媒を冷却する第２熱交換器であり、送風機３はラジエータ１及びコンデンサ２に冷却風を送風する送風手段である。
【００２２】
因みに、ラジエータ１は、冷却水が流通する複数本のラジエータチューブからなるラジエータコア１ａ、及びラジエータチューブの長手方向両端側に配設されて各ラジエータチューブに連通するラジエータタンク１ｂ等から構成された周知のマルチフロー型の熱交換器である。
【００２３】
また、コンデンサ２もラジエータ１と同様に、冷媒が流通する複数本のコンデンサチューブからなるコンデンサコア２ａ、及びコンデンサチューブの長手方向両端側に配設されて各コンデンサチューブに連通するコンデンサタンク２ｂ等から構成された周知のマルチフロー型の熱交換器である。
【００２４】
そして、本実施形態では、コンデンサ２がラジエータ１より車両前方側、つまりコンデンサ２がラジエータ１より冷却風流れ上流側に位置し、かつ、チューブの長手方向が水平方向に一致するように配置され、タンク１ｂ、２ｂの長手方向が上下方向（鉛直方向）に一致するように車両に搭載されている。
【００２５】
フロントエンドパネル４はラジエータ１及びコンデンサ２等の車両前端部品が組み付け固定されるもので、文献によってはキャリア又はラジエータサポートとも呼ばれる。
【００２６】
また、フロントエンドパネル４は、上方側に位置して水平方向に延びる上方側梁部材４ａ、下方側に位置して水平方向に延びる下方側梁部材４ｂ、及び上下方向に延びて両梁部材４ａ、４ｂを連結する支柱部４ｃ等からなる矩形枠状のパネル本体部、並びに前照灯（ヘッドライト）が組み付けられるライトステー部４ｄ等からなるものである。
【００２７】
なお、本実施形態では、上方側梁部材４ａ、下方側梁部材４ｂ、支柱部４ｃ及びライトステー部４ｄ、並びにファンシュラウド４ｅ等を炭素繊維やガラス繊維等にて引張り強度が強化された強化樹脂にて一体成形されている。
【００２８】
因みに、ファンシュラウド４ｅとは、送風機３と熱交換器（この場合は、ラジエータ１）との隙間を閉塞して送風機３にて誘起された空気流が熱交換器を迂回して流れることを防止するもので、本実施形態では、送風機３を支持するファンステーも兼ねている。
【００２９】
ところで、ラジエータ１の端部のうちラジエータタンク１ｂの長手方向両端側には、図２に示すように、ラジエータ１をフロントエンドパネル４に組み付けるための取付用突起部をなす取付ピン１ｃが設けられており、この取付ピン１ｃには、ゴム等の弾性材料からなる防振材１ｄが装着されている。
【００３０】
また、フロントエンドパネル４のうち取付ピン１ｃに対応する部位には、図１に示すように、取付ピン１ｃが挿入される挿入穴４ｆ、４ｇが設けられており、本実施形態では、下方側に設けられた挿入穴４ｆを車両前方側が開放され、かつ、車両後方側が閉じた略Ｕ字状の穴とし、上方側、つまりラジエータ１を挟んで挿入穴４ｆと反対側に設けられた挿入穴４ｇを開放部が無い閉じた穴としている。
【００３１】
一方、コンデンサ２の上下端部にもラジエータ１と同様に、コンデンサ２をフロントエンドパネル４に組み付けるための取付用突起部をなす取付ピン２ｃが設けられており、図３に示すように、この取付ピン２ｃにも取付ピン１ｃと同様にゴム等の弾性材料からなる防振材２ｄが装着されている。
【００３２】
また、フロントエンドパネル４のうち取付ピン２ｃに対応する部位には、図１に示すように、取付ピン２ｃが挿入される挿入穴４ｈ、４ｊが設けられており、本実施形態では、上方側に設けられた挿入穴４ｈを車両前方側が開放され、かつ、車両後方側が閉じた略Ｕ字状の穴とし、下方側、つまりコンデンサ２を挟んで挿入穴４ｈと反対側に設けられた挿入穴４ｊを開放部が無い閉じた穴としている。
【００３３】
つまり、車両前方側が開放された挿入穴４ｆ及び挿入穴４ｈは、互いに熱交換器１、２を挟んで対向する反対の位置に設けることにより、車両前方側から見て、挿入穴４ｆと挿入穴４ｈとが上下方向にずれるようにしている。
【００３４】
また、ストッパ５は、取付ピン２ｃを挿入穴４ｈに装着した後、挿入穴４ｈの開放側を閉塞するストッパ部材であり、このストッパ５は、フロントエンドパネル４に係止固定される。
【００３５】
具体的には、図４（ａ）に示すように、車両前方側からフロントエンドパネル４（上方側梁部材４ａ）に組み付け固定された樹脂製のストッパ５とフロントエンドパネル４とにより、防振材２ｄが装着された取付ピン２ｃを挟み込んでコンデンサ２をフロントエンドパネル４に固定している。
【００３６】
また、ストッパ５は、図４（ｂ）に示すように、上方側梁部材４ａを上下方向から挟み込む断面が略コの字状のクリップ部５ａ、及び上方側梁部材４ａに設けられた係止用穴部４ｋに勘合する係止用突起部５ｂからなるものである。
【００３７】
また、車両前方側が開放された挿入穴４ｆ及び挿入穴４ｈの開放側には、図４（ａ）に示すように、開放側を狭めるようにして取付ピン１ｃ、２ｄが挿入穴４ｆ、４ｈから抜けることを抑制する突起部６が設けられており、本実施形態では、この突起部６が特許請求の範囲に記載された抜け抑制手段を構成する。
【００３８】
次に、ラジエータ１及びコンデンサ２のフロントエンドパネル４への組み付け手順を述べる（図１参照）。
【００３９】
ラジエータ１の上方側に設けられた取付ピン１ｃを下側から挿入穴４ｈに挿入した後、上方側の取付ピン１ｃを支点とするようにしてラジエータ１を揺動させて下側の取付ピン１ｃを挿入穴４ｆの開放側から挿入装着する。
【００４０】
このとき、下側の取付ピン１ｃに装着された防振材１ｄが突起部６にて縮められ、その外径寸法が自由状態に比べて小さくなって取付ピン１ｃが挿入穴４ｆに係止固定される。
【００４１】
次に、コンデンサ２の下方側に設けられた取付ピン２ｃを上側から挿入穴４ｊに挿入した後、下方側の取付ピン２ｃを支点とするようにしてコンデンサ２を揺動させて上側の取付ピン２ｃを挿入穴４ｈの開放側から挿入装着する。
【００４２】
このとき、上側の取付ピン２ｃに装着された防振材２ｄが突起部６にて縮められ、その外径寸法が自由状態に比べて小さくなって取付ピン２ｃが挿入穴４ｈに係止固定される。
【００４３】
そして、ストッパ５をフロントエンドパネル４に装着して取付ピン２ｃが挿入穴４ｈから脱落することを確実に防止する。
【００４４】
次に、本実施形態の作用効果を述べる。
【００４５】
本実施形態では、ラジエータ１の取付ピン１ｃが装着される挿入穴４ｆはストッパ５に閉塞されることなく開放されたままであるものの、ラジエータ１の前面側、つまり挿入穴４ｆの開放側に配置されるコンデンサ２の取付ピン２ｃは、閉じた穴である挿入穴４ｊに挿入されるので、ラジエータ１の下方側、つまり挿入穴４ｆに挿入された取付ピン１ｃの車両前方側への最大変位量は、コンデンサ２により規制されることとなる。
【００４６】
このため、ラジエータ１とコンデンサ２との距離が、挿入穴４ｆの長径寸法、つまり開放部から底部までの寸法Ｌ（図４（ａ）参照）以下となっていれば、ラジエータ１の取付ピン１ｃが挿入穴４ｆから脱落することはない。
【００４７】
したがって、挿入穴４ｆにストッパを設けることなく、ラジエータ１をフロントエンドパネル４（車両ボディ）に組み付けることができるので、部品点数及び組み付け工数の増大を抑制しつつ、ラジエータ１等の車両前端側に搭載される熱交換器の組み付け作業性を向上させることができる。
【００４８】
また、車両前方側が開放された挿入穴４ｆ及び挿入穴４ｈが、互いに熱交換器１、２挟んで対向する反対の位置に設けられているので、挿入穴４ｆ及び挿入穴４ｈが車両前方側から見て同一側に設けられものに比べて、フロントエンドパネル４の強度低下を小さくすることができる。
【００４９】
また、挿入穴４ｆに取付ピン１ｃが脱落することを抑制する突起部６を設けているので、ラジエータ１がコンデンサ２に衝突する程度まで取付ピン１ｃが挿入穴４ｆ内で変位してしまうことを抑制できる。
【００５０】
（第２実施形態）
本実施形態は、図５に示すように、コンデンサ２及びラジエータ１に冷却風を導く樹脂製の導風ダクト部材７にストッパ５を一体的に設けたものである。
【００５１】
これにより、車両前端構造を構成する部品の点数を低減することができるので、組み立て工数及び製造原価を低減することができる。
【００５２】
（その他の実施形態）
上述の実施形態では、取付ピン１ｃ、２ｃは防振材１ｄ、２ｄを介して挿入穴４ｆ〜４ｊに挿入装着していたが、本発明はこれに限定されるものではない。
【００５３】
また、上述の実施形態では、車両前方側から見て、挿入穴４ｆと挿入穴４ｈとが上下方向にずれるようにしたが、本発明はこれに限定されるものではなく、例えば左右方向で挿入穴４ｆと挿入穴４ｆとがずれるようにしてもよい。
【００５４】
また、上述の第２実施形態では、導風ダクト部材７にストッパ５を一体化したが、本発明はこれに限定されるものではなく、バンパーカバーやラジエータグリル（フロングリル）にストッパ５を一体化してもよい。
【００５５】
なお、上述の実施形態では、挿入穴４ｆ及び挿入穴４ｈは、車両前方側が開放されたものであったが、これは、ラジエータ１及びコンデンサ２を車両前方側からフロントエンドパネル４に組み付けるためである。したがって、車両前方側からラジエータ１及びコンデンサ２をフロントエンドパネル４に組み付ける場合には、挿入穴４ｆ及び挿入穴４ｈを車両後方側を開放することが望ましい。
【００５６】
因みに、車両後方側からラジエータ１等の熱交換器をフロントエンドパネル２に組み付ける際には、「第１熱交換器（１）と、前記第１熱交換器（１）より車両前方側に搭載された第２熱交換器（２）と、前記第１、２熱交換器（１、２）が組み付けられたフロントエンドパネル（４）とを備え、前記第１熱交換器（１）の端部には、前記第１熱交換器（１）を前記フロントエンドパネル（４）に組み付けるための取付用突起部（１ｃ）が設けられ、前記フロントエンドパネル（４）には、前記取付用突起部（１ｃ）が挿入される第１挿入穴（４ｆ）が設けられ、前記第１挿入穴（４ｆ）は、車両後方側が開放され、かつ、車両前方側が閉じた略Ｕ字状の穴であり、さらに、前記第１熱交換器（１）の車両後方側への最大変位量は、前記第２熱交換器（２）により規制されることを特徴とする」ようにしてもよい。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係る車両の前端構造を示す分解斜視図である。
【図２】図１のＡ−Ａ断面図である。
【図３】図１のＢ−Ｂ断面図である。
【図４】（ａ）は本発明の挿入穴部分の分解斜視図であり、（ｂ）は（ａ）のＡ−Ａ断面図である。
【図５】本発明の第２実施形態に係る車両の前端構造を示す分解斜視図である。
【符号の説明】
１…ラジエータ、１ｃ…取付ピン、２…コンデンサ、２ｃ…取付ピン、
３…送風機、４…フロントエンドパネル、４ｆ〜４ｊ…挿入穴。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a front end structure of a vehicle, and is effective when applied to a structure for attaching a radiator and a capacitor to a front end panel.
[0002]
[Prior art]
The radiator is usually assembled to the vehicle body by inserting a mounting pin provided in the radiator into an insertion hole provided in the vehicle body such as a front end panel (see, for example, Patent Document 1).
[0003]
At this time, in the invention described in Patent Document 1, by making the insertion hole into a U shape with the vehicle rear side opened, the mounting pin can easily fall off to the vehicle rear side in the event of a collision, and the radiator front end panel Prevents damage.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-187588
[Problems to be solved by the invention]
However, in the invention described in Patent Document 1, since the insertion hole has a U shape with one end opened, after the mounting pin is attached to the insertion hole, the opening side of the insertion hole is closed with a closing means such as a stopper. There is a need to.
[0006]
Therefore, the number of parts and the number of assembling steps are increased, leading to an increase in the manufacturing cost of the vehicle front end structure, that is, the vehicle.
[0007]
In view of the above points, the present invention firstly provides a new front end structure of a vehicle that is different from the conventional one, and secondly, suppresses an increase in the number of parts and the number of assembling steps, and the front end side of a vehicle such as a radiator. The purpose is to improve the assembly workability of the heat exchanger mounted on the machine.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, the first heat exchanger (1) and the second heat mounted on the front side of the vehicle from the first heat exchanger (1) are provided. An exchanger (2) and a front end panel (4) assembled with the first and second heat exchangers (1, 2), and the first heat exchanger (1) has a first heat A mounting protrusion (1c) for assembling the exchanger (1) to the front end panel (4) is provided, and a first insertion in which the mounting protrusion (1c) is inserted into the front end panel (4). A hole (4f) is provided, and the first insertion hole (4f) is a substantially U-shaped hole that is open on the front side of the vehicle and closed on the rear side of the vehicle. Further, the first insertion hole (4f) of the first heat exchanger (1) maximum amount of displacement toward the front of the vehicle is restricted by the second heat exchanger (2), the vertical direction of the front end panel On the opposite side of the first insertion hole (4f), a closed second insertion hole (4g) without an opening for inserting the mounting projection (1c) is provided, and the second heat exchanger ( Of the insertion holes into which the mounting projections (2c) provided in 2) are inserted, the substantially U-shaped third insertion hole (4h) opened on the vehicle front side and closed on the vehicle rear side is The front end panel is provided on the side opposite to the first insertion hole (4f) in the vertical direction .
[0009]
Thereby, it can prevent that the protrusion part (1c) for attachment of a 1st heat exchanger (1) falls out from a 1st insertion hole (4f). Accordingly, since the first heat exchanger (1) can be assembled to the front end panel (4) without providing a stopper or the like in the first insertion hole (4f), an increase in the number of parts and assembly man-hours is suppressed. Assembling workability of the heat exchanger mounted on the front end side of the vehicle can be improved. Furthermore, the strength of the front end panel (4) is reduced compared to the case where the first insertion hole (4f) and the third insertion hole (4h), which are opened on the front side of the vehicle, are provided on the same side as viewed from the front side of the vehicle. Can be small.
[0010]
In invention of Claim 2, it is provided with the 1st heat exchanger (1) and the 2nd heat exchanger (2) mounted in the vehicle front side from the 1st heat exchanger (1), and the 1st heat. At the end of the exchanger (1), a mounting projection (1c) for assembling the first heat exchanger (1) to the vehicle body (4) is provided. A first insertion hole (4f) into which the protrusion (1c) is inserted is provided, and the first insertion hole (4f) is a substantially U-shaped hole that is open on the vehicle front side and closed on the vehicle rear side. Furthermore, the maximum amount of displacement of the first heat exchanger (1) toward the vehicle front side is regulated by the second heat exchanger (2), and the first insertion hole (4f) in the vertical direction of the vehicle body. A closed second insertion hole (4g) having no open portion into which the mounting projection (1c) is inserted is provided on the opposite side to the second heat exchanger. Of the insertion holes into which the mounting projections (2c) provided in 2) are inserted, the substantially U-shaped third insertion hole (4h) opened on the vehicle front side and closed on the vehicle rear side is It is provided in the opposite side to the 1st insertion hole (4f) in the up-down direction of a vehicle body, It is characterized by the above-mentioned.
[0011]
Thereby, it can prevent that the protrusion part (1c) for attachment of a 1st heat exchanger (1) falls out from a 1st insertion hole (4f). Therefore, since the first heat exchanger (1) can be assembled to the vehicle body (4) without providing a stopper or the like in the first insertion hole (4f), the increase in the number of parts and assembly man-hours is suppressed. Assembling workability of the heat exchanger mounted on the front end side of the vehicle can be improved. Furthermore, compared with the case where the first insertion hole (4f) and the third insertion hole (4h) whose front side is open are provided on the same side as viewed from the front side of the vehicle, the strength reduction of the vehicle body (4) is reduced. can do.
[0015]
In the invention according to claim 3 , the mounting protrusion (1c) of the second heat exchanger (2) is provided on the opposite side of the third insertion hole (4h) across the second heat exchanger (2). A closed fourth insertion hole (4j) having no opening to be inserted is provided.
[0016]
The invention according to claim 4 is characterized in that a stopper member (5) for closing the open side of the third insertion hole (4h) is mounted.
[0017]
The invention according to claim 5 is characterized in that a stopper member (5) is provided on the air guide duct member (7) for guiding air to the second heat exchanger (2).
[0018]
According to the sixth aspect of the present invention, the disengagement suppressing means (6) is provided on the open side of the first insertion hole (4f) to prevent the attachment protrusion (1c) from coming out of the first insertion hole (4f). It is characterized by being provided.
[0019]
Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with the specific means described in the embodiments described later.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
1 is an exploded perspective view showing a front end structure of a vehicle according to the present embodiment, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line BB in FIG.
[0021]
In FIG. 1, a radiator 1 is a first heat exchanger that cools engine cooling water by exchanging heat between engine cooling water and outside air, and a condenser 2 circulates in a vapor compression refrigerator (vehicle air conditioner). The second heat exchanger cools the refrigerant by exchanging heat between the refrigerant and the outside air, and the blower 3 is a blowing unit that blows cooling air to the radiator 1 and the condenser 2.
[0022]
Incidentally, the radiator 1 is composed of a radiator core 1a composed of a plurality of radiator tubes through which cooling water circulates, a radiator tank 1b that is disposed at both longitudinal ends of the radiator tubes and communicates with the radiator tubes, and the like. It is a multiflow type heat exchanger.
[0023]
Similarly to the radiator 1, the capacitor 2 also includes a capacitor core 2 a composed of a plurality of capacitor tubes through which refrigerant flows, a capacitor tank 2 b disposed at both ends in the longitudinal direction of the capacitor tubes, and communicated with each capacitor tube. This is a well-known multi-flow type heat exchanger.
[0024]
In the present embodiment, the condenser 2 is disposed on the vehicle front side of the radiator 1, that is, the condenser 2 is positioned on the cooling air flow upstream side of the radiator 1, and the longitudinal direction of the tube is aligned with the horizontal direction. The tanks 1b and 2b are mounted on the vehicle so that the longitudinal direction thereof coincides with the vertical direction (vertical direction).
[0025]
The front end panel 4 is assembled and fixed to vehicle front end components such as the radiator 1 and the condenser 2 and is also called a carrier or a radiator support depending on literatures.
[0026]
In addition, the front end panel 4 is located on the upper side and extends in the horizontal direction, the upper side beam member 4a, located on the lower side and extends in the horizontal direction, the lower side beam member 4b, and extends in the vertical direction, and both beam members 4a. 4b includes a rectangular frame-like panel main body composed of support columns 4c and the like, and a light stay 4d to which a headlight (headlight) is assembled.
[0027]
In the present embodiment, the upper side beam member 4a, the lower side beam member 4b, the column part 4c, the light stay part 4d, the fan shroud 4e and the like are reinforced resin whose tensile strength is reinforced by carbon fiber or glass fiber. Are integrally molded.
[0028]
Incidentally, the fan shroud 4e prevents the air flow induced by the blower 3 from flowing around the heat exchanger by closing the gap between the blower 3 and the heat exchanger (in this case, the radiator 1). Therefore, in this embodiment, it also serves as a fan stay that supports the blower 3.
[0029]
By the way, as shown in FIG. 2, mounting pins 1c forming mounting protrusions for mounting the radiator 1 to the front end panel 4 are provided on both ends of the radiator 1 in the longitudinal direction of the radiator tank 1b. A vibration isolating material 1d made of an elastic material such as rubber is attached to the mounting pin 1c.
[0030]
In addition, as shown in FIG. 1, insertion holes 4f and 4g into which the mounting pins 1c are inserted are provided in portions of the front end panel 4 corresponding to the mounting pins 1c. The insertion hole 4f provided in the vehicle is a substantially U-shaped hole that is open on the front side of the vehicle and closed on the rear side of the vehicle, and is provided on the upper side, that is, on the opposite side of the insertion hole 4f across the radiator 1 4 g is a closed hole with no opening.
[0031]
On the other hand, similarly to the radiator 1, the upper and lower ends of the capacitor 2 are provided with mounting pins 2c that form mounting protrusions for assembling the capacitor 2 to the front end panel 4, as shown in FIG. Similarly to the mounting pin 1c, the vibration isolating material 2d made of an elastic material such as rubber is mounted on the mounting pin 2c.
[0032]
In addition, as shown in FIG. 1, insertion holes 4h and 4j into which the mounting pins 2c are inserted are provided in the front end panel 4 corresponding to the mounting pins 2c. The insertion hole 4h provided in the vehicle is a substantially U-shaped hole that is open on the front side of the vehicle and closed on the rear side of the vehicle, and is provided on the lower side, that is, on the opposite side of the insertion hole 4h across the capacitor 2 4j is a closed hole with no opening.
[0033]
That is, the insertion hole 4f and the insertion hole 4h opened on the front side of the vehicle are provided at opposite positions facing each other with the heat exchangers 1 and 2 therebetween, so that the insertion hole 4f and the insertion hole are viewed from the front side of the vehicle. 4h is shifted in the vertical direction.
[0034]
The stopper 5 is a stopper member that closes the open side of the insertion hole 4h after the mounting pin 2c is mounted in the insertion hole 4h. The stopper 5 is locked and fixed to the front end panel 4.
[0035]
Specifically, as shown in FIG. 4 (a), an anti-vibration is achieved by the resin stopper 5 and the front end panel 4 assembled and fixed to the front end panel 4 (upper side beam member 4a) from the front side of the vehicle. The capacitor 2 is fixed to the front end panel 4 by sandwiching the mounting pin 2c on which the material 2d is mounted.
[0036]
Further, as shown in FIG. 4B, the stopper 5 is provided with a clip portion 5a having a substantially U-shaped cross section for sandwiching the upper side beam member 4a from above and below, and a latch provided on the upper side beam member 4a. It consists of a locking projection 5b that fits into the hole 4k.
[0037]
Further, on the open side of the insertion hole 4f and the insertion hole 4h where the front side of the vehicle is opened, as shown in FIG. 4 (a), the mounting pins 1c and 2d extend from the insertion holes 4f and 4h so as to narrow the open side. Protrusions 6 are provided to suppress the removal, and in the present embodiment, the protrusions 6 constitute a disengagement suppression means described in the claims.
[0038]
Next, a procedure for assembling the radiator 1 and the capacitor 2 to the front end panel 4 will be described (see FIG. 1).
[0039]
After the mounting pin 1c provided on the upper side of the radiator 1 is inserted into the insertion hole 4h from the lower side, the radiator 1 is swung with the upper mounting pin 1c as a fulcrum to lower the lower mounting pin 1c. Is inserted and mounted from the open side of the insertion hole 4f.
[0040]
At this time, the anti-vibration material 1d attached to the lower mounting pin 1c is contracted by the projection 6, and the outer diameter thereof becomes smaller than that in the free state, so that the mounting pin 1c is locked and fixed to the insertion hole 4f. Is done.
[0041]
Next, after the mounting pin 2c provided on the lower side of the capacitor 2 is inserted into the insertion hole 4j from above, the capacitor 2 is swung with the lower mounting pin 2c as a fulcrum, and the upper mounting pin. 2c is inserted and mounted from the open side of the insertion hole 4h.
[0042]
At this time, the vibration isolator 2d attached to the upper mounting pin 2c is shrunk by the projection 6, and the outer diameter thereof becomes smaller than that in the free state, so that the mounting pin 2c is locked and fixed to the insertion hole 4h. The
[0043]
Then, the stopper 5 is attached to the front end panel 4 to reliably prevent the mounting pin 2c from dropping out of the insertion hole 4h.
[0044]
Next, the function and effect of this embodiment will be described.
[0045]
In the present embodiment, the insertion hole 4f in which the mounting pin 1c of the radiator 1 is mounted remains open without being blocked by the stopper 5, but is disposed on the front side of the radiator 1, that is, on the open side of the insertion hole 4f. Since the mounting pin 2c of the capacitor 2 is inserted into the insertion hole 4j, which is a closed hole, the maximum displacement amount of the mounting pin 1c inserted into the lower side of the radiator 1, that is, the front side of the vehicle, into the insertion hole 4f is Therefore, it is regulated by the capacitor 2.
[0046]
For this reason, if the distance between the radiator 1 and the capacitor 2 is equal to or less than the long diameter dimension of the insertion hole 4f, that is, the dimension L (see FIG. 4A) from the open portion to the bottom portion, the mounting pin 1c of the radiator 1 is used. Does not fall out of the insertion hole 4f.
[0047]
Therefore, the radiator 1 can be assembled to the front end panel 4 (vehicle body) without providing a stopper in the insertion hole 4f, so that the increase in the number of parts and assembly man-hours can be suppressed while the radiator 1 or the like is placed on the front end side of the vehicle. Assembling workability of the mounted heat exchanger can be improved.
[0048]
Further, since the insertion hole 4f and the insertion hole 4h opened on the front side of the vehicle are provided at opposite positions facing each other with the heat exchangers 1 and 2 interposed therebetween, the insertion hole 4f and the insertion hole 4h are formed from the front side of the vehicle. Compared with what is provided in the same side seeing, the strength reduction of the front end panel 4 can be made small.
[0049]
In addition, since the protrusion 6 that prevents the mounting pin 1c from dropping off is provided in the insertion hole 4f, the mounting pin 1c is displaced in the insertion hole 4f until the radiator 1 collides with the capacitor 2. Can be suppressed.
[0050]
(Second Embodiment)
In this embodiment, as shown in FIG. 5, a stopper 5 is integrally provided on a resin-made air guide duct member 7 that guides cooling air to the capacitor 2 and the radiator 1.
[0051]
Thereby, since the number of parts constituting the vehicle front end structure can be reduced, the assembly man-hours and the manufacturing cost can be reduced.
[0052]
(Other embodiments)
In the above-described embodiment, the mounting pins 1c and 2c are inserted into the insertion holes 4f to 4j via the vibration isolators 1d and 2d, but the present invention is not limited to this.
[0053]
Further, in the above-described embodiment, the insertion hole 4f and the insertion hole 4h are displaced in the vertical direction when viewed from the front side of the vehicle. However, the present invention is not limited to this, for example, the insertion hole is inserted in the horizontal direction. The hole 4f and the insertion hole 4f may be shifted.
[0054]
In the second embodiment described above, the stopper 5 is integrated with the air guide duct member 7, but the present invention is not limited to this, and the stopper 5 is integrated with the bumper cover or the radiator grille (Freon grill). May be used.
[0055]
In the above-described embodiment, the insertion hole 4f and the insertion hole 4h are opened on the front side of the vehicle. This is because the radiator 1 and the capacitor 2 are assembled to the front end panel 4 from the front side of the vehicle. is there. Therefore, when the radiator 1 and the capacitor 2 are assembled to the front end panel 4 from the front side of the vehicle, it is desirable to open the insertion hole 4f and the insertion hole 4h on the rear side of the vehicle.
[0056]
Incidentally, when the heat exchanger such as the radiator 1 is assembled to the front end panel 2 from the rear side of the vehicle, “the first heat exchanger (1) and the first heat exchanger (1) are mounted on the front side of the vehicle. A second heat exchanger (2) and a front end panel (4) assembled with the first and second heat exchangers (1, 2), and an end of the first heat exchanger (1). Is provided with a mounting projection (1c) for assembling the first heat exchanger (1) to the front end panel (4), and the front end panel (4) has the mounting projection. A first insertion hole (4f) into which the portion (1c) is inserted is provided, and the first insertion hole (4f) is a substantially U-shaped hole that is open on the vehicle rear side and closed on the vehicle front side. Furthermore, the maximum amount of displacement of the first heat exchanger (1) toward the vehicle rear side is the second amount. Be regulated by exchanger (2) may be characterized "a.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a front end structure of a vehicle according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
3 is a cross-sectional view taken along the line BB in FIG.
4A is an exploded perspective view of the insertion hole portion of the present invention, and FIG. 4B is a cross-sectional view taken along line AA of FIG. 4A.
FIG. 5 is an exploded perspective view showing a front end structure of a vehicle according to a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Radiator, 1c ... Mounting pin, 2 ... Capacitor, 2c ... Mounting pin,
3 ... Blower, 4 ... Front end panel, 4f-4j ... Insertion hole.

Claims

A first heat exchanger (1);
A second heat exchanger (2) mounted on the vehicle front side from the first heat exchanger (1);
A front end panel (4) assembled with the first and second heat exchangers (1, 2);
At the end of the first heat exchanger (1), a mounting projection (1c) for assembling the first heat exchanger (1) to the front end panel (4) is provided,
The front end panel (4) is provided with a first insertion hole (4f) into which the mounting projection (1c) is inserted,
The first insertion hole (4f) is a substantially U-shaped hole that is open on the vehicle front side and closed on the vehicle rear side,
Furthermore, the maximum displacement amount of the first heat exchanger (1) toward the vehicle front side is regulated by the second heat exchanger (2) ,
On the opposite side of the front end panel in the vertical direction from the first insertion hole (4f), there is provided a closed second insertion hole (4g) having no open portion into which the mounting projection (1c) is inserted. And
Of the insertion holes into which the mounting protrusions (2c) provided in the second heat exchanger (2) are inserted, a third insertion having a substantially U shape in which the vehicle front side is opened and the vehicle rear side is closed. The vehicle front end structure is characterized in that the hole (4h) is provided on a side opposite to the first insertion hole (4f) in the vertical direction of the front end panel .

A first heat exchanger (1);
A second heat exchanger (2) mounted on the vehicle front side from the first heat exchanger (1),
At the end of the first heat exchanger (1), a mounting projection (1c) for assembling the first heat exchanger (1) to the vehicle body (4) is provided.
The vehicle body (4) is provided with a first insertion hole (4f) into which the mounting protrusion (1c) is inserted,
The first insertion hole (4f) is a substantially U-shaped hole that is open on the vehicle front side and closed on the vehicle rear side,
Furthermore, the maximum displacement amount of the first heat exchanger (1) toward the vehicle front side is regulated by the second heat exchanger (2) ,
On the opposite side of the vehicle body from the first insertion hole (4f) in the up-down direction, a closed second insertion hole (4g) without an opening for inserting the mounting projection (1c) is provided. And
Of the insertion holes into which the mounting protrusions (2c) provided in the second heat exchanger (2) are inserted, a third insertion having a substantially U shape in which the vehicle front side is opened and the vehicle rear side is closed. The vehicle front end structure is characterized in that the hole (4h) is provided on the side opposite to the first insertion hole (4f) in the vertical direction of the vehicle body .

On the opposite side to the third insertion hole (4h) across the second heat exchanger (2), an open portion into which the mounting projection (1c) of the second heat exchanger (2) is inserted. The vehicle front end structure according to claim 1 or 2 , characterized in that a closed fourth insertion hole (4j) having no gap is provided.

The vehicle front end structure according to any one of claims 1 to 3, further comprising a stopper member (5) for closing the open side of the third insertion hole (4h).

The vehicle front end structure according to claim 4 , wherein the stopper member (5) is provided on an air guide duct member (7) for guiding air to the second heat exchanger (2).

On the open side of the first insertion hole (4f), there is provided a disengagement suppressing means (6) that suppresses the attachment projection (1c) from coming out of the first insertion hole (4f). The vehicle front end structure according to any one of claims 1 to 5 .