WO2022202504A1 - Water intrusion prevention structure - Google Patents

Water intrusion prevention structure Download PDF

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Publication number
WO2022202504A1
WO2022202504A1 PCT/JP2022/011705 JP2022011705W WO2022202504A1 WO 2022202504 A1 WO2022202504 A1 WO 2022202504A1 JP 2022011705 W JP2022011705 W JP 2022011705W WO 2022202504 A1 WO2022202504 A1 WO 2022202504A1
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Prior art keywords
water
vehicle
intake port
prevention structure
front opening
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PCT/JP2022/011705
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French (fr)
Japanese (ja)
Inventor
亨 小竹
親寛 前田
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いすゞ自動車株式会社
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Publication of WO2022202504A1 publication Critical patent/WO2022202504A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems

Definitions

  • the present disclosure relates to a water intrusion prevention structure.
  • Patent Document 1 discloses an automobile body capable of protecting the duct from direct entry of water. This body can suppress the entry of water into the open end of the duct by arranging the protective portion covering the open end in the very vicinity of the open end of the duct.
  • the protective portion is arranged to cover the open end of the duct, so there is a risk of preventing air intake from the open end.
  • An object of the present disclosure is to provide a water infiltration prevention structure that suppresses water intrusion into an intake without hindering intake of air from the intake.
  • a water intrusion prevention structure is disposed between a front opening formed in a front portion of a vehicle and an intake port for taking in air, has a predetermined width in the vehicle front-rear direction, and is It is provided with a water stop wall portion formed to extend in the vertical direction.
  • FIG. 1 is a diagram showing the configuration of a vehicle provided with a water intrusion prevention structure according to an embodiment of the present disclosure.
  • FIG. 2 is a cross-sectional view showing the configuration of the water intrusion prevention structure.
  • FIG. 3 is a cross-sectional view showing how water flowing in from the front opening is guided.
  • FIG. 1 shows the configuration of a vehicle equipped with a water intrusion prevention structure according to an embodiment of the present disclosure.
  • the vehicle has a front panel 1, a body frame 2, an intake duct 3, and a water intrusion prevention structure 4.
  • Examples of vehicles include trucks and vans.
  • the front panel 1 is arranged to cover the front part of the vehicle, and has a plurality of front openings 1a near the center in the vehicle width direction D1.
  • the front opening 1a is a so-called front grill, and is formed so as to be aligned in the vehicle width direction D1 and the vehicle vertical direction D2.
  • a radiator and the like (not shown) are arranged behind the front opening 1a, and the air flowing in from the front opening 1a is supplied to the radiator and the like.
  • the body frame 2 supports the vehicle and is arranged inside the vehicle with respect to the front panel 1 . Therefore, the front portion of the body frame 2 that constitutes the cab is arranged to face the front panel 1 to the rear of the vehicle.
  • the intake duct 3 is arranged to extend from an internal combustion engine (not shown), and its end is fixed to the front part of the body frame 2 .
  • An intake port 3a for taking in air is formed at the end of the intake duct 3 .
  • the intake port 3a is arranged on the side of the front opening 1a in the vehicle width direction D1.
  • the air intake duct 3 takes in air from an intake port 3a according to the amount of intake air of the internal combustion engine, and guides the taken air to the internal combustion engine.
  • the water intrusion prevention structure 4 has a water stop wall portion 5 , a guide portion 6 and a sub-wall portion 7 .
  • the water stop wall portion 5 is for blocking the movement of water such as rainwater flowing in from the front opening portion 1a to the air intake duct 3 side. It is arranged between them and fixed to the body frame 2 .
  • the water cutoff wall portion 5 has a predetermined width in the vehicle front-rear direction and is formed to extend in the vehicle up-down direction D2.
  • the water stop wall portion 5 is arranged at a position closer to the front opening portion 1a than the intake port 3a in the vehicle width direction D1.
  • the water stop wall portion 5 is arranged in the vicinity of the front opening portion 1a arranged closest to the intake port 3a side, and extends along the arrangement direction of the front opening portions 1a arranged in the vehicle vertical direction D2. It is formed to extend in the vertical direction D2.
  • the guide part 6 has a plate shape extending in the vehicle width direction D1 and is fixed to the body frame 2 or the front panel 1 .
  • One side edge portion 6 a of the guide portion 6 is arranged in the vicinity of or in contact with the waterproof wall portion 5 .
  • the other side edge portion is arranged to extend to a position sufficiently distant from the intake port 3a, for example, to the position of the front opening portion 1a which has little effect on the entry of water into the intake port 3a.
  • the sub-wall portion 7 is arranged to cover the outer periphery of the water-stopping wall portion 5 except for the water-stopping surface 8 facing the front opening 1a side, and extends along the water-stopping wall portion 5 in the vertical direction D2 of the vehicle. is formed in
  • the water stop wall portion 5 is formed so as to extend from the vicinity of the front panel 1 to the vicinity of the body frame 2 with a predetermined width in the vehicle front-rear direction D3. As a result, most of the intake port 3a of the intake duct 3 is hidden by the water stop wall 5 from the front opening 1a side in the vehicle width direction D1.
  • the secondary wall portion 7 is made of a material more flexible than the waterproof wall portion 5, and fills the gap between the waterproof wall portion 5, the body frame 2, and the front panel 1 when viewed in the vehicle width direction D1. are placed. As a result, the entire intake port 3a of the air intake duct 3 is hidden from the front opening 1a side in the vehicle width direction D1.
  • the water stop wall portion 5 is formed such that the water stop surface 8 facing the front opening 1a side in the vehicle width direction D1 is recessed toward the intake port 3a side.
  • the water stop wall portion 5 is formed with a rear edge portion 8a, an upper edge portion 8b, and a front edge portion 8c that rise from the water stop surface 8 toward the front opening portion 1a in the vehicle width direction D1.
  • the lower end portion 8d of the water stop wall portion 5 does not have an edge rising toward the front opening 1a, and is formed so as to smoothly continue from the water stop surface 8.
  • the water stop wall portion 5 is arranged such that the lower end portion 8d is rearward of the upper end portion.
  • the guide portion 6 has a front edge portion 6b disposed in the vicinity of the upper portion of the front opening portion 1a positioned highest in the vertical direction D2 of the vehicle, and is inclined downward from the front edge portion 6b toward the rear edge portion 6c. is provided. As a result, the guide portion 6 is arranged so as to face the front opening portion 1a.
  • the sub-wall portion 7 is arranged so as to fill a gap between the guide portion 6 and the body frame 2 and the front panel 1 when viewed in the vehicle width direction D1.
  • the rear edge portion 6c of the guide portion 6 is arranged below the upper end portion of the water stop wall portion 5. That is, the rear portion side of the guide portion 6 is arranged so as to overlap the water stop wall portion 5 in the vehicle width direction D1.
  • the water stop wall portion 5 is arranged between the front opening portion 1a and the intake port 3a.
  • the water stop wall portion 5 has a predetermined width in the vehicle front-rear direction D3 and is formed to extend in the vehicle vertical direction D2.
  • the water stop wall portion 5 blocks the passage of water from the front opening 1a to the inlet 3a, and guides the water flowing in from the front opening 1a downward along with the running wind.
  • the water stop wall portion 5 does not cover the inlet 3a, and the periphery of the inlet 3a is largely open. Therefore, it is possible to prevent water from entering the intake port 3a without hindering the intake of air from the intake port 3a.
  • the water stop wall portion 5 is arranged at a position closer to the front opening portion 1a than the intake port 3a in the vehicle width direction D1. In general, a large amount of air is taken in from the intake port 3a. Therefore, if the water cutoff wall portion 5 is arranged near the intake port 3a, water will be absorbed by the water cutoff wall portion due to the suction force of the intake port 3a. 5 and may move toward the inlet 3a. Therefore, by arranging the water stop wall portion 5 away from the front opening 1a, it is possible to suppress the movement of water over the water stop wall portion 5 to the intake port 3a. of water can be reliably suppressed.
  • the water stop wall portion 5 is arranged in the vicinity of the front opening portion 1a, immediately after the water flows in from the front opening portion 1a, the water is guided to flow downward by riding the running wind. can be done. As a result, it is possible to more reliably prevent water from entering the inlet 3a.
  • the water cutoff wall portion 5 can be arranged with the lower end portion 8d closer to the front opening portion 1a than the upper end portion thereof in the vehicle width direction D1. This allows the water to be guided further away from the intake port 3a, thereby more reliably suppressing water from entering the intake port 3a.
  • the lower end portion 8d of the water cutoff wall portion 5 is arranged so as to be located below the front opening portion 1a located at the lowest position in the vertical direction D2 of the vehicle.
  • water flowing in from all the front openings 1a can be suppressed from moving toward the intake port 3a.
  • the water can be guided to a position away from the intake port 3a in the vertical direction D2 of the vehicle, and the guided water can be prevented from moving upward again by the suction force of the intake port 3a.
  • the water stop wall portion 5 is formed with a width that hides most of the intake port 3a from the front opening portion 1a side in the vehicle width direction D1. In this way, the water stop wall portion 5 is arranged so as to greatly block the passage of water from the front opening 1a to the intake port 3a, so that the intrusion of water into the intake port 3a is more reliably suppressed. be able to.
  • the sub-wall portion 7 is arranged so as to fill the gap between the water stop wall portion 5 and the body frame 2 and the front panel 1 when viewed from the vehicle width direction D1. As a result, the passage of water from the front opening 1a to the intake port 3a can be reliably blocked, and the entry of water into the intake port 3a can be more reliably suppressed.
  • the sub-wall portion 7 can be made of a sponge-like foam material, and is preferably made of, for example, a self-foaming foam material. As a result, the movement of water toward the intake port 3a can be reliably blocked, and the entry of water into the intake port 3a can be more reliably suppressed.
  • the guide portion 6 is provided so as to incline downward from the front edge portion 6b disposed near the upper portion of the front opening 1a toward the rear edge portion 6c.
  • the guide portion 6 can be provided so as to incline at an angle of about 45 degrees, so that the water flowing in from the front opening portion 1a can be more smoothly guided.
  • the rear edge portion 6 c of the guide portion 6 is arranged below the upper end portion of the water cutoff wall portion 5 . As a result, it is possible to prevent the water guided by the guide portion 6 from moving over the cutoff wall portion 5 toward the intake port 3a.
  • One side edge portion 6 a of the guide portion 6 is arranged near or in contact with the water stop wall portion 5 . As a result, it is possible to reliably prevent the water guided by the guide portion 6 from moving over the cutoff wall portion 5 toward the intake port 3a.
  • the water stop wall portion 5 is formed such that the water stop surface 8 facing the front opening 1a side in the vehicle width direction D1 is recessed toward the intake port 3a side.
  • the water stop wall portion 5 is formed with a rear edge portion 8a, an upper edge portion 8b, and a front edge portion 8c rising from the water stop surface 8 toward the front opening portion 1a in the vehicle width direction D1. It is possible to suppress the water flowing in from 1a from moving beyond the water stop wall portion 5 due to the suction force from the intake port 3a or the like. Therefore, the water flowing in from the front opening 1a can be smoothly guided downward along the water stop surface 8. As shown in FIG.
  • the rear edge portion 8a can be formed so as to stand up more than the upper edge portion 8b and the front edge portion 8c. As a result, the water flowing in from the front opening 1a can be guided downward more smoothly.
  • the water stop wall portion 5 is arranged such that the lower end portion 8d is rearward of the upper end portion.
  • the water stop wall portion 5 can be formed so as to be inclined at about 45 degrees from the upper end portion toward the lower end portion 8d. As a result, the water flowing in from the front opening 1a can be more smoothly guided to the rear of the vehicle.
  • the water stop wall portion 5 is disposed between the front opening portion 1a and the intake port 3a, has a predetermined width in the vehicle front-rear direction D3, and extends in the vehicle vertical direction D2. is formed in Therefore, it is possible to prevent water from entering the intake port 3a without hindering the intake of air from the intake port 3a.
  • front openings 1a are formed in the above-described embodiment, they may be formed in the front part of the vehicle, and may be one front opening 1a.
  • the front opening 1a is composed of the front grille, but it is not limited to this as long as it is formed in the front part of the vehicle.
  • the intake port 3a is formed in the air intake duct 3, but it is not limited to this as long as it takes in air.
  • the water intrusion prevention structure according to the present disclosure can be used as a structure that suppresses water intrusion into the intake.

Abstract

The present invention provides a water intrusion prevention structure that suppress the intrusion of water into an intake port without obstructing the intake of air from the intake port. The water intrusion prevention structure comprises a water stop wall which is disposed between a front opening portion formed in a front part of a vehicle and an intake port for taking in air and which is formed to have a prescribed width in the longitudinal direction of the vehicle and to extend in the vertical direction of the vehicle.

Description

水浸入防止構造Water intrusion prevention structure
　本開示は、水浸入防止構造に関する。 The present disclosure relates to a water intrusion prevention structure.
　従来から、内燃機関に空気を取り込むための吸気ダクトの取込口に雨水などの水が浸入するのを防止する水浸入防止構造が実用化されている。一般的に、吸気ダクトには、大量の空気が取り込まれるため、周囲に水が存在すると、それらの水も取込口に取り込まれるおそれがある。このため、取込口への水の浸入を抑制する水浸入防止構造が求められている。 Conventionally, a water infiltration prevention structure that prevents water such as rainwater from entering the intake port of the air intake duct for taking air into the internal combustion engine has been put into practical use. In general, an intake duct takes in a large amount of air, so if there is water around it, there is a risk that the water will also be taken into the intake port. Therefore, there is a demand for a water infiltration prevention structure that suppresses water intrusion into the inlet.
　そこで、取込口への水の浸入を抑制する技術として、例えば、特許文献１には、水の直接的な浸入からダクトを保護可能な自動車のボディが開示されている。このボディは、ダクトの開口端のごく近傍において開口端を覆う保護部を配置することにより、開口端への水の浸入を抑制することができる。 Therefore, as a technique for suppressing the entry of water into the intake, for example, Patent Document 1 discloses an automobile body capable of protecting the duct from direct entry of water. This body can suppress the entry of water into the open end of the duct by arranging the protective portion covering the open end in the very vicinity of the open end of the duct.
日本国特表２０１１－５１８７２３号公報Japanese special table 2011-518723
　しかしながら、特許文献１のボディは、ダクトの開口端を覆うように保護部を配置するため、開口端からの空気の取り込みを妨げるおそれがある。 However, in the body of Patent Document 1, the protective portion is arranged to cover the open end of the duct, so there is a risk of preventing air intake from the open end.
　本開示は、取込口からの空気の取り込みを妨げることなく取込口への水の浸入を抑制する水浸入防止構造を提供することを目的とする。 An object of the present disclosure is to provide a water infiltration prevention structure that suppresses water intrusion into an intake without hindering intake of air from the intake.
　本開示に係る水浸入防止構造は、車両の前部に形成された前面開口部と、空気を取り込むための取込口との間に配置され、車両前後方向に所定の幅を有し、車両上下方向に延びるように形成された止水壁部を備えるものである。 A water intrusion prevention structure according to the present disclosure is disposed between a front opening formed in a front portion of a vehicle and an intake port for taking in air, has a predetermined width in the vehicle front-rear direction, and is It is provided with a water stop wall portion formed to extend in the vertical direction.
　本開示によれば、取込口からの空気の取り込みを妨げることなく取込口への水の浸入を抑制することが可能となる。 According to the present disclosure, it is possible to suppress the intrusion of water into the intake without hindering the intake of air from the intake.
図１は、本開示の実施の形態に係る水浸入防止構造を備えた車両の構成を示す図である。FIG. 1 is a diagram showing the configuration of a vehicle provided with a water intrusion prevention structure according to an embodiment of the present disclosure. 図２は、水浸入防止構造の構成を示す断面図である。FIG. 2 is a cross-sectional view showing the configuration of the water intrusion prevention structure. 図３は、前面開口部から流入する水を誘導する様子を示す断面図である。FIG. 3 is a cross-sectional view showing how water flowing in from the front opening is guided.
　以下、本開示に係る実施の形態を添付図面に基づいて説明する。 Hereinafter, embodiments according to the present disclosure will be described based on the accompanying drawings.
　図１に、本開示の実施の形態に係る水浸入防止構造を備えた車両の構成を示す。車両は、フロントパネル１と、ボディフレーム２と、吸気ダクト３と、水浸入防止構造４とを有する。なお、車両としては、例えば、トラックやバンなどが挙げられる。 FIG. 1 shows the configuration of a vehicle equipped with a water intrusion prevention structure according to an embodiment of the present disclosure. The vehicle has a front panel 1, a body frame 2, an intake duct 3, and a water intrusion prevention structure 4. Examples of vehicles include trucks and vans.
　フロントパネル１は、車両の前部を覆うように配置され、車幅方向Ｄ１において中央部近傍に複数の前面開口部１ａが形成されている。前面開口部１ａは、いわゆるフロントグリルであり、車幅方向Ｄ１および車両上下Ｄ２方向に並ぶように形成されている。前面開口部１ａの後方には、図示しないラジエータなどが配置されており、前面開口部１ａから流入した空気がラジエータなどに供給される。 The front panel 1 is arranged to cover the front part of the vehicle, and has a plurality of front openings 1a near the center in the vehicle width direction D1. The front opening 1a is a so-called front grill, and is formed so as to be aligned in the vehicle width direction D1 and the vehicle vertical direction D2. A radiator and the like (not shown) are arranged behind the front opening 1a, and the air flowing in from the front opening 1a is supplied to the radiator and the like.
　ボディフレーム２は、車両を支持するもので、フロントパネル１に対して車両内側に配置されている。このため、キャブを構成するボディフレーム２の前部は、フロントパネル１の車両後方に対向して配置されることになる。 The body frame 2 supports the vehicle and is arranged inside the vehicle with respect to the front panel 1 . Therefore, the front portion of the body frame 2 that constitutes the cab is arranged to face the front panel 1 to the rear of the vehicle.
　吸気ダクト３は、図示しない内燃機関から延びるように配置され、その端部がボディフレーム２の前部に固定されている。吸気ダクト３の端部には、空気を取り込むための取込口３ａが形成されている。このとき、取込口３ａは、車幅方向Ｄ１において前面開口部１ａの側方に配置されている。吸気ダクト３は、内燃機関の吸気量に応じて取込口３ａから空気を取り込み、その取り込まれた空気を内燃機関まで導くものである。 The intake duct 3 is arranged to extend from an internal combustion engine (not shown), and its end is fixed to the front part of the body frame 2 . An intake port 3a for taking in air is formed at the end of the intake duct 3 . At this time, the intake port 3a is arranged on the side of the front opening 1a in the vehicle width direction D1. The air intake duct 3 takes in air from an intake port 3a according to the amount of intake air of the internal combustion engine, and guides the taken air to the internal combustion engine.
　水浸入防止構造４は、止水壁部５と、ガイド部６と、副壁部７とを有する。 The water intrusion prevention structure 4 has a water stop wall portion 5 , a guide portion 6 and a sub-wall portion 7 .
　止水壁部５は、前面開口部１ａから流入する雨水などの水が吸気ダクト３側に移動するのを遮るためのもので、車幅方向Ｄ１において前面開口部１ａと取込口３ａとの間に配置されてボディフレーム２に固定されている。止水壁部５は、車両前後方向に所定の幅を有し、車両上下方向Ｄ２に延びるように形成されている。ここで、止水壁部５は、車幅方向Ｄ１において取込口３ａより前面開口部１ａに近い位置に配置されている。具体的には、止水壁部５は、最も取込口３ａ側に配置された前面開口部１ａの近傍に配置され、車両上下方向Ｄ２に配列する前面開口部１ａの配列方向に沿って車両上下方向Ｄ２に延びるように形成されている。 The water stop wall portion 5 is for blocking the movement of water such as rainwater flowing in from the front opening portion 1a to the air intake duct 3 side. It is arranged between them and fixed to the body frame 2 . The water cutoff wall portion 5 has a predetermined width in the vehicle front-rear direction and is formed to extend in the vehicle up-down direction D2. Here, the water stop wall portion 5 is arranged at a position closer to the front opening portion 1a than the intake port 3a in the vehicle width direction D1. Specifically, the water stop wall portion 5 is arranged in the vicinity of the front opening portion 1a arranged closest to the intake port 3a side, and extends along the arrangement direction of the front opening portions 1a arranged in the vehicle vertical direction D2. It is formed to extend in the vertical direction D2.
　ガイド部６は、車幅方向Ｄ１に延在する板形状を有し、ボディフレーム２またはフロントパネル１に固定されている。ガイド部６の一方の側縁部６ａは、止水壁部５の近傍または当接して配置されている。また、他方の側縁部は、取込口３ａから十分離れた位置、例えば取込口３ａへの水の浸入にほとんど影響しない前面開口部１ａの位置まで延びるように配置されている。 The guide part 6 has a plate shape extending in the vehicle width direction D1 and is fixed to the body frame 2 or the front panel 1 . One side edge portion 6 a of the guide portion 6 is arranged in the vicinity of or in contact with the waterproof wall portion 5 . The other side edge portion is arranged to extend to a position sufficiently distant from the intake port 3a, for example, to the position of the front opening portion 1a which has little effect on the entry of water into the intake port 3a.
　副壁部７は、止水壁部５の外周において前面開口部１ａ側を向いた止水面８を除く部分を覆うように配置され、止水壁部５に沿って車両上下方向Ｄ２に延びるように形成されている。 The sub-wall portion 7 is arranged to cover the outer periphery of the water-stopping wall portion 5 except for the water-stopping surface 8 facing the front opening 1a side, and extends along the water-stopping wall portion 5 in the vertical direction D2 of the vehicle. is formed in
　次に、水浸入防止構造４の構成について詳細に説明する。 Next, the configuration of the water intrusion prevention structure 4 will be described in detail.
　図２に示すように、止水壁部５は、フロントパネル１の近傍からボディフレーム２の近傍まで車両前後方向Ｄ３に所定の幅で広がるように形成されている。これにより、吸気ダクト３の取込口３ａの大部分が、車幅方向Ｄ１において前面開口部１ａ側から止水壁部５で隠れることになる。 As shown in FIG. 2, the water stop wall portion 5 is formed so as to extend from the vicinity of the front panel 1 to the vicinity of the body frame 2 with a predetermined width in the vehicle front-rear direction D3. As a result, most of the intake port 3a of the intake duct 3 is hidden by the water stop wall 5 from the front opening 1a side in the vehicle width direction D1.
　また、副壁部７は、止水壁部５より柔軟性を有する材料から構成され、車幅方向Ｄ１から見て止水壁部５とボディフレーム２およびフロントパネル１との隙間を埋めるように配置されている。これにより、吸気ダクト３の取込口３ａの全てが、車幅方向Ｄ１において前面開口部１ａ側から隠れることになる。 The secondary wall portion 7 is made of a material more flexible than the waterproof wall portion 5, and fills the gap between the waterproof wall portion 5, the body frame 2, and the front panel 1 when viewed in the vehicle width direction D1. are placed. As a result, the entire intake port 3a of the air intake duct 3 is hidden from the front opening 1a side in the vehicle width direction D1.
　また、止水壁部５は、車幅方向Ｄ１において前面開口部１ａ側を向いた止水面８が取込口３ａ側に窪むように形成されている。これにより、止水壁部５には、車幅方向Ｄ１において止水面８から前面開口部１ａ側に立ち上がる後縁部８ａ、上縁部８ｂおよび前縁部８ｃが形成される。このとき、止水壁部５の下端部８ｄには、前面開口部１ａ側に立ち上がる縁部は形成されておらず、止水面８から滑らかに連続するように形成されている。また、止水壁部５は、上端部より下端部８ｄが後方に配置されている。 In addition, the water stop wall portion 5 is formed such that the water stop surface 8 facing the front opening 1a side in the vehicle width direction D1 is recessed toward the intake port 3a side. As a result, the water stop wall portion 5 is formed with a rear edge portion 8a, an upper edge portion 8b, and a front edge portion 8c that rise from the water stop surface 8 toward the front opening portion 1a in the vehicle width direction D1. At this time, the lower end portion 8d of the water stop wall portion 5 does not have an edge rising toward the front opening 1a, and is formed so as to smoothly continue from the water stop surface 8. As shown in FIG. In addition, the water stop wall portion 5 is arranged such that the lower end portion 8d is rearward of the upper end portion.
　ガイド部６は、車両上下方向Ｄ２において最も上方に位置する前面開口部１ａの上部近傍に前縁部６ｂが配置され、その前縁部６ｂから後縁部６ｃに向かって下方に傾斜するように設けられている。これにより、ガイド部６は、前面開口部１ａに対向して配置されることになる。
　なお、副壁部７は、車幅方向Ｄ１から見てガイド部６とボディフレーム２およびフロントパネル１との隙間を埋めるように配置されている。 The guide portion 6 has a front edge portion 6b disposed in the vicinity of the upper portion of the front opening portion 1a positioned highest in the vertical direction D2 of the vehicle, and is inclined downward from the front edge portion 6b toward the rear edge portion 6c. is provided. As a result, the guide portion 6 is arranged so as to face the front opening portion 1a.
The sub-wall portion 7 is arranged so as to fill a gap between the guide portion 6 and the body frame 2 and the front panel 1 when viewed in the vehicle width direction D1.
　また、ガイド部６の後縁部６ｃは、止水壁部５の上端部より下方に配置されている。すなわち、ガイド部６の後部側は、車幅方向Ｄ１において止水壁部５に重なるように配置されている。 Further, the rear edge portion 6c of the guide portion 6 is arranged below the upper end portion of the water stop wall portion 5. That is, the rear portion side of the guide portion 6 is arranged so as to overlap the water stop wall portion 5 in the vehicle width direction D1.
　次に、本実施の形態の動作について説明する。 Next, the operation of this embodiment will be described.
　まず、図１に示すように、車両の走行に応じて、フロントパネル１の前面開口部１ａから走行風が流入し、その走行風が図示しないラジエータなどに供給される。また、内燃機関の駆動に応じて取込口３ａから空気が取り込まれ、その空気が吸気ダクト３を介して内燃機関に供給される。 First, as shown in FIG. 1, as the vehicle travels, running wind flows in from the front opening 1a of the front panel 1 and is supplied to a radiator (not shown) and the like. Further, air is taken in from the intake port 3a according to the driving of the internal combustion engine, and the air is supplied to the internal combustion engine through the intake duct 3. As shown in FIG.
　このとき、例えば雨が降ると、雨水などの水が空気と共に前面開口部１ａから流入することになる。この水を含む空気が、前面開口部１ａの正面に位置するボディフレーム２などに突き当たると、水が空気と分離されてボディフレーム２に取り残される。一方、取込口３ａからは大量の空気が取り込まれている。このため、取込口３ａから取り込まれる空気の流れに乗って、ボディフレーム２に取り残された水が取込口３ａに大量に流入するおそれがある。また、前面開口部１ａから流入する水を含む空気が、取込口３ａに直接的に流入するおそれもある。 At this time, for example, when it rains, water such as rainwater flows in from the front opening 1a together with the air. When this water-containing air hits the body frame 2 located in front of the front opening 1a, the water is separated from the air and left on the body frame 2. - 特許庁On the other hand, a large amount of air is taken in from the intake port 3a. Therefore, there is a risk that a large amount of water remaining in the body frame 2 may flow into the intake port 3a along with the flow of air taken in from the intake port 3a. In addition, there is a possibility that air containing water flowing in from the front opening 1a may directly flow into the intake port 3a.
　そこで、本開示では、止水壁部５が、前面開口部１ａと取込口３ａとの間に配置されている。この止水壁部５は、車両前後方向Ｄ３に所定の幅を有し、車両上下方向Ｄ２に延びるように形成されている。これにより、止水壁部５が、前面開口部１ａから取込口３ａへ向かう水の通り道を塞ぐと共に、前面開口部１ａから流入する水を走行風に乗せて下方に誘導することができる。このとき、止水壁部５は、取込口３ａを覆うことなく、取込口３ａの周囲は大きく開放されている。このため、取込口３ａからの空気の取り込みを妨げることなく取込口３ａへの水の浸入を抑制することができる。 Therefore, in the present disclosure, the water stop wall portion 5 is arranged between the front opening portion 1a and the intake port 3a. The water stop wall portion 5 has a predetermined width in the vehicle front-rear direction D3 and is formed to extend in the vehicle vertical direction D2. As a result, the water stop wall portion 5 blocks the passage of water from the front opening 1a to the inlet 3a, and guides the water flowing in from the front opening 1a downward along with the running wind. At this time, the water stop wall portion 5 does not cover the inlet 3a, and the periphery of the inlet 3a is largely open. Therefore, it is possible to prevent water from entering the intake port 3a without hindering the intake of air from the intake port 3a.
　また、止水壁部５は、車幅方向Ｄ１において取込口３ａより前面開口部１ａに近い位置に配置されている。一般的に、取込口３ａからは大量の空気が取り込まれているため、止水壁部５を取込口３ａの近傍に配置すると、取込口３ａの吸引力により水が止水壁部５を超えて取込口３ａ側へ移動するおそれがある。そこで、止水壁部５を前面開口部１ａから離れて配置することにより、水が止水壁部５を超えて取込口３ａへ移動するのを抑制することができ、取込口３ａへの水の浸入を確実に抑制することができる。 In addition, the water stop wall portion 5 is arranged at a position closer to the front opening portion 1a than the intake port 3a in the vehicle width direction D1. In general, a large amount of air is taken in from the intake port 3a. Therefore, if the water cutoff wall portion 5 is arranged near the intake port 3a, water will be absorbed by the water cutoff wall portion due to the suction force of the intake port 3a. 5 and may move toward the inlet 3a. Therefore, by arranging the water stop wall portion 5 away from the front opening 1a, it is possible to suppress the movement of water over the water stop wall portion 5 to the intake port 3a. of water can be reliably suppressed.
　このとき、止水壁部５は、前面開口部１ａの近傍に配置されているため、前面開口部１ａから水が流入した直後に、そのまま走行風に乗って下方に流通するように誘導することができる。これにより、取込口３ａへの水の浸入をより確実に抑制することができる。 At this time, since the water stop wall portion 5 is arranged in the vicinity of the front opening portion 1a, immediately after the water flows in from the front opening portion 1a, the water is guided to flow downward by riding the running wind. can be done. As a result, it is possible to more reliably prevent water from entering the inlet 3a.
　なお、止水壁部５は、車幅方向Ｄ１において下端部８ｄを上端部より前面開口部１ａ側に配置することができる。これにより、水の誘導先を取込口３ａからより離すことができ、取込口３ａへの水の浸入をより確実に抑制することができる。 It should be noted that the water cutoff wall portion 5 can be arranged with the lower end portion 8d closer to the front opening portion 1a than the upper end portion thereof in the vehicle width direction D1. This allows the water to be guided further away from the intake port 3a, thereby more reliably suppressing water from entering the intake port 3a.
　また、止水壁部５の下端部８ｄは、車両上下方向Ｄ２において最も下方に位置する前面開口部１ａより下側に位置するように配置されている。これにより、全ての前面開口部１ａから流入する水に対して取込口３ａ側への移動を抑制することができる。また、車両上下方向Ｄ２に取込口３ａから離れた位置まで水を誘導することができ、誘導した水が取込口３ａの吸引力により再度上方へ移動するのを抑制することができる。 Further, the lower end portion 8d of the water cutoff wall portion 5 is arranged so as to be located below the front opening portion 1a located at the lowest position in the vertical direction D2 of the vehicle. As a result, water flowing in from all the front openings 1a can be suppressed from moving toward the intake port 3a. Further, the water can be guided to a position away from the intake port 3a in the vertical direction D2 of the vehicle, and the guided water can be prevented from moving upward again by the suction force of the intake port 3a.
　また、図２に示すように、止水壁部５は、車幅方向Ｄ１において前面開口部１ａ側から取込口３ａの大部分を隠すような幅で形成されている。このように、止水壁部５が、前面開口部１ａから取込口３ａへ向かう水の通り道を大きく塞ぐように配置されるため、取込口３ａへの水の浸入をより確実に抑制することができる。 In addition, as shown in FIG. 2, the water stop wall portion 5 is formed with a width that hides most of the intake port 3a from the front opening portion 1a side in the vehicle width direction D1. In this way, the water stop wall portion 5 is arranged so as to greatly block the passage of water from the front opening 1a to the intake port 3a, so that the intrusion of water into the intake port 3a is more reliably suppressed. be able to.
　また、副壁部７が、車幅方向Ｄ１から見て止水壁部５とボディフレーム２およびフロントパネル１との隙間を埋めるように配置されている。これにより、前面開口部１ａから取込口３ａへ向かう水の通り道を確実に塞ぐことができ、取込口３ａへの水の浸入をより確実に抑制することができる。 Further, the sub-wall portion 7 is arranged so as to fill the gap between the water stop wall portion 5 and the body frame 2 and the front panel 1 when viewed from the vehicle width direction D1. As a result, the passage of water from the front opening 1a to the intake port 3a can be reliably blocked, and the entry of water into the intake port 3a can be more reliably suppressed.
　なお、副壁部７は、スポンジ状の発泡材から構成することができ、例えば独立発砲の発泡材から構成することが好ましい。これにより、取込口３ａ側への水の移動を確実に遮ることができ、取込口３ａへの水の浸入をより確実に抑制することができる。 The sub-wall portion 7 can be made of a sponge-like foam material, and is preferably made of, for example, a self-foaming foam material. As a result, the movement of water toward the intake port 3a can be reliably blocked, and the entry of water into the intake port 3a can be more reliably suppressed.
　また、図３に示すように、ガイド部６が、前面開口部１ａの上部近傍に配置された前縁部６ｂから後縁部６ｃに向かって下方に傾斜するように設けられている。これにより、前面開口部１ａから流入する水が、ボディフレーム２に正面から突き当たるのを抑制し、走行風に乗せてスムーズに車両後方に誘導することができる。
　例えば、ガイド部６は、約４５度の角度で傾斜するように設けることでき、これにより前面開口部１ａから流入する水をよりスムーズに誘導することができる。 Further, as shown in FIG. 3, the guide portion 6 is provided so as to incline downward from the front edge portion 6b disposed near the upper portion of the front opening 1a toward the rear edge portion 6c. As a result, the water flowing in from the front opening 1a can be prevented from colliding with the body frame 2 from the front, and can be smoothly guided to the rear of the vehicle by the running wind.
For example, the guide portion 6 can be provided so as to incline at an angle of about 45 degrees, so that the water flowing in from the front opening portion 1a can be more smoothly guided.
　また、ガイド部６の後縁部６ｃは、止水壁部５の上端部より下方に配置されている。これにより、ガイド部６でガイドされる水が止水壁部５を超えて取込口３ａ側へ移動するのを抑制することができる。
　また、ガイド部６の一方の側縁部６ａは、止水壁部５の近傍または当接して配置されている。これにより、ガイド部６でガイドされる水が止水壁部５を超えて取込口３ａ側へ移動するのを確実に抑制することができる。 Further, the rear edge portion 6 c of the guide portion 6 is arranged below the upper end portion of the water cutoff wall portion 5 . As a result, it is possible to prevent the water guided by the guide portion 6 from moving over the cutoff wall portion 5 toward the intake port 3a.
One side edge portion 6 a of the guide portion 6 is arranged near or in contact with the water stop wall portion 5 . As a result, it is possible to reliably prevent the water guided by the guide portion 6 from moving over the cutoff wall portion 5 toward the intake port 3a.
　また、止水壁部５は、車幅方向Ｄ１において前面開口部１ａ側を向いた止水面８が取込口３ａ側に窪むように形成されている。これにより、止水壁部５には、車幅方向Ｄ１において止水面８から前面開口部１ａ側に立ち上がる後縁部８ａ、上縁部８ｂおよび前縁部８ｃが形成されるため、前面開口部１ａから流入する水が、取込口３ａからの吸引力などにより止水壁部５を超えて移動することを抑制することができる。このため、前面開口部１ａから流入する水を止水面８に沿ってスムーズに下方に誘導することができる。 In addition, the water stop wall portion 5 is formed such that the water stop surface 8 facing the front opening 1a side in the vehicle width direction D1 is recessed toward the intake port 3a side. As a result, the water stop wall portion 5 is formed with a rear edge portion 8a, an upper edge portion 8b, and a front edge portion 8c rising from the water stop surface 8 toward the front opening portion 1a in the vehicle width direction D1. It is possible to suppress the water flowing in from 1a from moving beyond the water stop wall portion 5 due to the suction force from the intake port 3a or the like. Therefore, the water flowing in from the front opening 1a can be smoothly guided downward along the water stop surface 8. As shown in FIG.
　このとき、後縁部８ａは、上縁部８ｂおよび前縁部８ｃより大きく立ち上がるように形成することができる。これにより、前面開口部１ａから流入する水をよりスムーズに下方に誘導することができる。 At this time, the rear edge portion 8a can be formed so as to stand up more than the upper edge portion 8b and the front edge portion 8c. As a result, the water flowing in from the front opening 1a can be guided downward more smoothly.
　また、止水壁部５は、上端部より下端部８ｄが後方に配置されている。これにより、前面開口部１ａから流入する水を走行風に乗せてスムーズに車両後方に誘導することができ、取込口３ａ側への水の移動を確実に抑制することができる。
　なお、止水壁部５は、上端部から下端部８ｄに向かって約４５度で傾斜するように形成することができる。これにより、前面開口部１ａから流入する水をよりスムーズに車両後方に誘導することができる。 In addition, the water stop wall portion 5 is arranged such that the lower end portion 8d is rearward of the upper end portion. As a result, the water flowing in from the front opening 1a can be smoothly guided toward the rear of the vehicle by the running wind, and the movement of water toward the intake port 3a can be reliably suppressed.
The water stop wall portion 5 can be formed so as to be inclined at about 45 degrees from the upper end portion toward the lower end portion 8d. As a result, the water flowing in from the front opening 1a can be more smoothly guided to the rear of the vehicle.
　本実施の形態によれば、止水壁部５が、前面開口部１ａと取込口３ａとの間に配置され、車両前後方向Ｄ３に所定の幅を有し、車両上下方向Ｄ２に延びるように形成されている。このため、取込口３ａからの空気の取り込みを妨げることなく取込口３ａへの水の浸入を抑制することができる。 According to the present embodiment, the water stop wall portion 5 is disposed between the front opening portion 1a and the intake port 3a, has a predetermined width in the vehicle front-rear direction D3, and extends in the vehicle vertical direction D2. is formed in Therefore, it is possible to prevent water from entering the intake port 3a without hindering the intake of air from the intake port 3a.
　なお、上記の実施の形態では、複数の前面開口部１ａが形成されたが、車両の前部に形成されていればよく、１つの前面開口部１ａでもよい。 Although a plurality of front openings 1a are formed in the above-described embodiment, they may be formed in the front part of the vehicle, and may be one front opening 1a.
　また、上記の実施の形態では、前面開口部１ａは、フロントグリルから構成されたが、車両の前部に形成されていればよく、これに限られるものではない。 In addition, in the above embodiment, the front opening 1a is composed of the front grille, but it is not limited to this as long as it is formed in the front part of the vehicle.
　また、上記の実施の形態では、取込口３ａは、吸気ダクト３に形成されたが、空気を取り込むものであればよく、これに限られるものではない。 Also, in the above embodiment, the intake port 3a is formed in the air intake duct 3, but it is not limited to this as long as it takes in air.
　本出願は、２０２１年３月２２日付で出願された日本国特許出願（特願２０２１－０４７１８０）に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on a Japanese patent application (Japanese Patent Application No. 2021-047180) filed on March 22, 2021, the contents of which are incorporated herein by reference.
　その他、上記の実施の形態は、何れも本発明の実施をするにあたっての具体化の一例を示したものに過ぎず、これらによって本発明の技術的範囲が限定的に解釈されてはならないものである。すなわち、本発明はその要旨、またはその主要な特徴から逸脱することなく、様々な形で実施することができる。例えば、上記の実施の形態で説明した各部の形状や個数などについての開示はあくまで例示であり、適宜変更して実施することができる。 In addition, the above-described embodiments are merely examples of specific implementations of the present invention, and the technical scope of the present invention should not be construed to be limited by these. be. Thus, the invention may be embodied in various forms without departing from its spirit or essential characteristics. For example, the disclosure of the shape, number, etc. of each part described in the above embodiment is merely an example, and can be implemented with appropriate modifications.
　本開示に係る水浸入防止構造は、取込口への水の浸入を抑制する構造に利用できる。 The water intrusion prevention structure according to the present disclosure can be used as a structure that suppresses water intrusion into the intake.
　１　フロントパネル
　１ａ　前面開口部
　２　ボディフレーム
　３　吸気ダクト
　３ａ　取込口
　４　水浸入防止構造
　５　止水壁部
　６　ガイド部
　６ａ　側縁部
　６ｂ　前縁部
　６ｃ　後縁部
　７　副壁部
　８　止水面
　８ａ　後縁部
　８ｂ　上縁部
　８ｃ　前縁部
　８ｄ　下端部
　Ｄ１　車幅方向
　Ｄ２　車両上下方向
　Ｄ３　車両前後方向 REFERENCE SIGNS LIST 1 front panel 1a front opening 2 body frame 3 air intake duct 3a inlet 4 water intrusion prevention structure 5 water stop wall 6 guide 6a side edge 6b front edge 6c rear edge 7 auxiliary wall 8 water stop surface 8a Rear edge 8b Upper edge 8c Front edge 8d Lower end D1 Vehicle width direction D2 Vehicle vertical direction D3 Vehicle front-rear direction

Claims (7)

  1. 　車両の前部に形成された前面開口部と、空気を取り込むための取込口との間に配置され、車両前後方向に所定の幅を有し、車両上下方向に延びるように形成された止水壁部を備える水浸入防止構造。 A stop is disposed between a front opening formed in the front portion of the vehicle and an intake port for taking in air, has a predetermined width in the longitudinal direction of the vehicle, and is formed to extend in the vertical direction of the vehicle. A water intrusion prevention structure with a water wall.
  2. 　前記止水壁部は、車幅方向において前記前面開口部側を向いた止水面が前記取込口側に窪むように形成される請求項１に記載の水浸入防止構造。 The water intrusion prevention structure according to claim 1, wherein the water stop wall portion is formed such that a water stop surface facing the front opening side in the vehicle width direction is recessed toward the intake port side.
  3. 　前記止水壁部は、車幅方向において前記取込口より前記前面開口部に近い位置に配置される請求項１に記載の水浸入防止構造。 The water intrusion prevention structure according to claim 1, wherein the water stop wall portion is arranged at a position closer to the front opening than the intake port in the vehicle width direction.
  4. 　前記止水壁部は、上端部に対して下端部が後方に配置される請求項１に記載の水浸入防止構造。 The water infiltration prevention structure according to claim 1, wherein the water cutoff wall portion has a lower end rearward with respect to an upper end.
  5. 　前記前面開口部の上部近傍に配置された前縁部から後縁部に向かって下方に傾斜するように設けられ、側縁部が前記止水壁部の近傍または当接して配置されるガイド部をさらに有する請求項１に記載の水浸入防止構造。 A guide portion that is provided so as to incline downward from a front edge portion disposed near an upper portion of the front opening toward a rear edge portion, and a side edge portion is disposed near or in contact with the water stop wall portion. The water intrusion prevention structure according to claim 1, further comprising:
  6. 　前記ガイド部の後縁部は、前記止水壁部の上端部より下方に配置される請求項５に記載の水浸入防止構造。 The water intrusion prevention structure according to claim 5, wherein the rear edge portion of the guide portion is arranged below the upper end portion of the water stop wall portion.
  7. 　前記止水壁部より柔軟性を有する材料から構成され、車幅方向から見て前記止水壁部と車体との隙間を埋めるように配置された副壁部をさらに有する請求項１に記載の水浸入防止構造。 2. The vehicle according to claim 1, further comprising a sub-wall made of a material more flexible than the water-stopping wall and arranged to fill a gap between the water-stopping wall and the vehicle body when viewed from the vehicle width direction. Water penetration prevention structure.
PCT/JP2022/011705 2021-03-22 2022-03-15 Water intrusion prevention structure WO2022202504A1 (en)

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JP2021-047180 2021-03-22
JP2021047180A JP2022146294A (en) 2021-03-22 2021-03-22 Water ingress prevention structure

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828380A (en) * 1994-07-18 1996-01-30 Hino Motors Ltd Intake duct for vehicle
JP2015116887A (en) * 2013-12-17 2015-06-25 マツダ株式会社 Front part structure of vehicle
JP2015116888A (en) * 2013-12-17 2015-06-25 マツダ株式会社 Front part structure of vehicle
JP2019002327A (en) * 2017-06-14 2019-01-10 本田技研工業株式会社 Vehicle intake structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828380A (en) * 1994-07-18 1996-01-30 Hino Motors Ltd Intake duct for vehicle
JP2015116887A (en) * 2013-12-17 2015-06-25 マツダ株式会社 Front part structure of vehicle
JP2015116888A (en) * 2013-12-17 2015-06-25 マツダ株式会社 Front part structure of vehicle
JP2019002327A (en) * 2017-06-14 2019-01-10 本田技研工業株式会社 Vehicle intake structure

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