JP4435626B2 - Vehicle intake structure - Google Patents

Description

  The present invention relates to an intake intake structure for an engine or the like of a vehicle, and particularly relates to an intake intake portion provided on an upper frame of a shroud panel disposed in a front portion of a vehicle body.

  Conventionally, an intake structure for this type of vehicle is well known. For example, in the one disclosed in Patent Document 1, a resin seal board is provided on an upper part of a metal shroud upper that forms a part of a vehicle body. It is mounted and an intake passage leading to the intake duct is defined between the hood and the hood above it.

  Ribs are provided at the left and right ends of the seal board to prevent water droplets in the air wound up by vehicle members below the shroud upper from entering the intake passage. In addition, the upper surface of the seal board is provided with a bulge portion that bulges upward and opens toward the front, and catches water droplets in the intake air flowing to the rear of the vehicle body and guides them below the seal board. Yes.

Further, in the one disclosed in Patent Document 2, a vent hole penetrating in the longitudinal direction of the vehicle body is formed in a vertical wall of an upper panel of a resin shroud (referred to as a radio core support upper panel in the same document), and an intake air is provided behind the vent. A front rib extending forward of the vehicle body is provided below the ventilation hole, and the outside air that has passed through the front grille is guided to the ventilation hole of the upper panel by the front rib. It prevents water and snow from entering the air intake duct through the front grill during snowfall.
Japanese Utility Model Publication No. 5-12233 JP 2002-211252 A

  However, in the former conventional example (Patent Document 1), since a separate seal board is disposed on the shroud panel, the cost tends to be high. In addition, water droplets in the intake air flowing through the passage between the seal board and the bonnet hood may jump over the bulging portion on the seal board and be sucked into the intake duct, thus preventing water droplets from entering sufficiently. It cannot be said that it can be done.

  On the other hand, in the latter conventional example (Patent Document 2), the front rib extending forward of the vehicle body below the vent hole can considerably suppress the intrusion of water droplets into the vent hole. The water droplets that collided with the front surface of the core such as the radiator and bounced forward from there would not be able to be suppressed from entering the air holes on the air flow, leaving room for improvement in this regard. .

  The present invention has been made in view of such points, and the object of the present invention is to devise the structure of the intake intake portion provided in the upper frame (upper) of the shroud panel so that water droplets enter the intake duct. Is to suppress as much as possible.

  In order to achieve the above object, according to the present invention, a cylindrical intake intake portion extending in the longitudinal direction of the vehicle body is provided on the upper frame of the shroud panel, and at least the intake intake portion is included in the vehicle width direction on the front end side. The baffle plate was provided so as to hang downward.

That is, according to the first aspect of the present invention, the plurality of heat exchangers have a substantially rectangular opening disposed in the longitudinal direction of the vehicle body, and are integrally disposed at the front of the vehicle body behind the front grill of the vehicle. An intake intake structure for a vehicle in which an intake intake portion penetrating in the longitudinal direction of the vehicle body is provided on the upper frame of the shroud panel and an intake duct faces the rear of the intake intake portion.

The intake intake portion is formed in a cylindrical shape integrally formed with the upper frame and extends in the front-rear direction of the vehicle body. In the vicinity of the lower portion on the front end side, the intake intake portion is suspended downward, and at least the intake intake portion is formed. The baffle plate extending in the vehicle width direction is integrally formed so as to include the range that is included, the intake duct is connected to the rear end of the intake intake portion, and the air introduction hole of the front grill is at least The heat exchanger is formed below the lower end of the baffle plate, and among the plurality of heat exchangers, the foremost heat exchanger is disposed behind the baffle plate, and water droplets from the air introduction holes are transferred to the foremost heat. After colliding with the front surface of the core of the exchange, the rear surface of the baffle plate was supplemented .

  With the above configuration, in the vehicle air intake structure according to the present invention, first, the air introduction hole of the front grill is formed below the intake intake part of the upper frame of the shroud panel. It is very rare that water droplets directly enter the intake intake portion on the traveling wind passing through the.

Moreover, since the lower wall portion of the cylindrical intake intake portion blocks water droplets that move obliquely upward on the air flow, similarly to the front rib in the above-described conventional example (Patent Document 2), the conventional example thereof. In the same manner as the above, water droplets can be prevented from entering the intake intake section.

In addition, a baffle plate that hangs downward at least in the vehicle width direction range is provided on the front end side of the intake intake portion, so that the front surface of the core of the foremost heat exchanger such as a radiator is provided. Since the water droplets that have collided and bounced back are also captured by the rear surface of the baffle plate, the water droplets bounced back in this way can effectively be prevented from entering the intake intake portion.

  In addition, since the rear end of the intake intake portion is connected to the intake duct, it is possible to reliably prevent water droplets bypassing the intake intake portion from being directly sucked into the intake duct.

  In this way, the intrusion of water droplets into the intake duct can be reduced as much as possible.

  Embodiments of the present invention will be specifically described below with reference to the drawings.

  FIG. 1 shows an exploded front end module M of an automobile to which a vehicle intake structure according to an embodiment of the present invention is applied. The module M is mainly disposed in the front of the radiator 2 as a heat exchanger that cools the cooling water of the engine (not shown) by running wind, the resin shroud panel 1 having a substantially rectangular frame shape. The condenser 3 (heat exchanger) of the air conditioner and a cooling fan (not shown) attached to the rear side of the radiator 2 are configured.

  The module M has a shroud panel 1 mounted on the left and right front side frames 4, 4 (on the rear side (rear side) of the radiator grille G, the front bumper B, etc. at the front of an automobile V (vehicle) as shown in FIG. The front end portion (only the front end side is shown in FIG. 1) is connected to the front portion of the vehicle body.

  The shroud panel 1 is made of, for example, a resin such as polypropylene reinforced with glass fiber. As shown in FIG. 3, the radiator holding portion 11 that holds the radiator 2 (and the capacitor 3), and the radiator holding portion 11. Vehicle body fastening portions 12 and 12 are provided on both the left and right (vehicle width direction) sides and fastened to the front end flange portions 4a and 4a of the left and right front side frames 4 and 4 of the vehicle body.

  The radiator holding portion 11 includes an upper frame portion 11a and a lower frame portion 11b that are opposed to each other in the vertical direction and extend in the vehicle width direction, and the left end portions and the right end portions of the upper frame portion 11a and the lower frame portion 11b. The left and right horizontal frame portions 11 c and 11 c are connected to each other, and have a substantially rectangular frame shape corresponding to the outer shape of the radiator 2. And the radiator 2 and the capacitor | condenser 3 are arrange | positioned so that the front surface of a core may face the substantially rectangular shaped opening part 11d enclosed by each of these frame parts 11a-11c.

  The left and right vehicle body fastening portions 12 and 12 extend from the left and right horizontal frame portions 11c and 11c of the radiator holding portion 11 toward the outside in the vehicle width direction, and are respectively provided at the left and right ends of a bumper reinforcement (not shown). The flange portions are interposed between the flange portions 4a and 4a of the left and right front side frames 4 and 4, respectively, and the flange portions 4a and 4a of the left and right front side frames 4 and 4 together with the left and right flange portions of the bumper reinforcement. 4a is fastened with bolts. Note that the bolt hole 12a through which the fastening bolt penetrates the vehicle body fastening portion 12 is shown in FIG.

  Further, on the outer side in the vehicle width direction of the left and right vehicle body fastening portions 12 and 12, liquid storage tanks and intake resonator casings 15 and 16 are disposed close to the vehicle body fastening portions 12 and 12, respectively. The casing arrangement portions 15a and 16a are integrally formed, and the casings 15 and 16 are configured by combining resin casing main body portions 15b and 16b on the rear side of the casing arrangement portions 15a and 16a, respectively. It has become so.

  Furthermore, as a characteristic part of the present invention, as shown in FIGS. 4 and 5, an intake portion 18 for intake air to the engine is integrally formed on the upper frame portion 11 a of the radiator holding portion 11 of the shroud panel 1. Yes. That is, first, the upper frame portion 11a of the shroud panel 1 is formed in a substantially U-shaped cross section that opens to the rear of the vehicle body as shown in FIG. , A top portion 111 and a bottom wall portion 112 extending rearward from the upper and lower end portions, respectively.

  Further, the upper frame portion 11a has an extending wall portion 113 extending forward from the lower end portion of the vertical wall portion 110 so as to be positioned substantially on the same plane as the bottom wall portion 112, and a tip thereof. A drooping wall portion 114 that bends downward at the (front end) and hangs substantially vertically downward is integrally formed. As shown in FIG. 3, the hanging wall portion 114 is formed over the entire vehicle width direction of the upper frame portion 11 a corresponding to the opening portion 11 d of the shroud panel 1, and as a result, as described later, the intake intake portion 18. In addition to effectively suppressing the entry of water droplets into the shroud, the rigidity of the shroud panel 1 is also improved.

  A cylindrical intake intake portion 18 that penetrates the vertical wall portion 110 of the upper frame portion 11a and extends in the vehicle body front-rear direction is integrally formed. As shown in FIG. 4 (b), the intake intake portion 18 has an oval cross section that is longer to the left and right than the top and bottom as viewed in the front-rear direction. The lower wall portion 18a (bird) that extends forward from the front surface of the vertical wall portion 110 is located on the same plane as the front surface of the 110, while the lower half of the peripheral edge of the opening is positioned forward on the lower end side. Since it has a shape like a beak, it is formed along a beak-shaped wall portion hereinafter).

  The beak-shaped wall portion 18a extends forward from the extending wall portion 113 of the upper frame portion 11a, and is formed on the upper surface of the extending wall portion 113 facing downward from a substantially central portion in the left-right direction on the lower surface. A long rib 19 is formed in the front-rear direction. The front end portion of the rib 19 extends to the lower end portion along the front surface of the hanging wall portion 114 connected to the tip of the extending wall portion 113, while the rear end portion of the rib 19 is the vertical wall portion 110. It is connected to.

  That is, the beak-shaped wall portion 18a that is the lower wall portion on the front end side of the intake intake portion 18 is forward from the upper frame portion 11a of the shroud panel 1 so as to block the movement of water droplets that are placed on the air flow and move upward. Further, an extension wall portion 113 of the upper frame portion 11a is located below the beak-like wall portion 18a, and hangs downward from the front end of the extension wall portion 113. A hanging wall portion 114 is provided. The hanging wall portion 114 is a baffle plate that hangs downward from near the front end side of the intake intake portion 18 and extends in the vehicle width direction so as to include at least the range where the intake intake portion 18 is formed. is there.

  On the other hand, the rear end side of the intake intake portion 18 extends rearward from the rear surface of the vertical wall portion 110 of the shroud panel upper frame portion 11a, and the rear end portion 18b is connected to an intake system of an engine (not shown). An intake duct 20 (shown in phantom lines in FIG. 4A and FIG. 5) is connected. In addition, a pair of ribs 21 and 21 extending in the front-rear direction are formed on the rear end side of the intake intake portion 18 from the upper surface to the lower surface of the top portion 111 facing upward, and extend in the front-rear direction. A pair of ribs 22 and 22 extending in the front-rear direction are formed side by side with each other from the lower surface on the rear end side of the intake portion 18 to the upper surface of the bottom wall portion 112 facing downward.

  In FIG. 5, the symbol F indicates the hood of the automobile V. Reference numeral g1 denotes an air introduction hole formed in the front grille G. In this embodiment, the air introduction hole g1 is formed on the hanging wall portion 114 (baffle plate) of the upper frame portion 11a of the shroud panel 1. It is formed below the lower end.

  Therefore, according to the intake intake structure for the vehicle V having the above-described configuration, first, the intake intake portion 18 provided in the upper frame portion 11a of the shroud panel 1 has the air introduction hole formed in the front grill G of the vehicle V. Even if water drops enter the space behind the front grille as shown in the white arrow in FIG. It is very rare that the water droplets are directly carried into the upper intake intake portion 18 and enter.

  In addition, the beak-shaped wall portion 18a on the front end side of the intake intake portion 18 and the extending wall portion 13 of the shroud panel 1 are each a vertical wall of the shroud panel 1 in the same manner as the front rib of the conventional example (Patent Document 2). Since the water droplets that extend forward from the portion 110 and move into the space behind the front grille on the running wind as described above try to move upward by the flow of air, the movement of the water droplets is the beak-shaped wall portion. 18a and the extension wall part 13 will interrupt | block, and the penetration | invasion of the water droplet to the intake intake part 18 is also suppressed by this.

  Furthermore, a hanging wall portion 114 is provided so as to hang downward from the vicinity of the beak-shaped wall portion 18a of the intake intake portion 18 so as to include the range in the vehicle width direction. As indicated by W, water droplets that collide with the front surface of the core of the condenser 3 (heat exchanger) and bounce back forward are also captured by the rear surface of the drooping wall portion 114, and the water droplets are captured by the intake intake portion 18. Therefore, the intrusion of the water droplets bounced back into the intake intake portion 18 is effectively suppressed.

  Furthermore, since the rear end portion 18b of the intake intake portion 18 is connected to the intake duct 20, it is possible to reliably prevent water droplets bypassing the intake intake portion 18 from being directly sucked into the intake duct 20. Is done. Thus, the intrusion of water droplets into the intake duct 20 can be reduced as much as possible.

  In addition, in this embodiment, the intake intake portion 18 is formed on the vertical wall portion 110, the top portion 111, the bottom wall portion 112, and the extending wall portion 113 of the upper frame portion 11a of the shroud panel 1 by the ribs 19, 21, and 22. In particular, the rear end side of the intake intake portion 18 is connected to the upper top portion 111 by a pair of left and right ribs 21 and 21 and to the lower bottom wall portion 112 by a pair of left and right ribs 22 and 22. Therefore, the rigidity at the rear end side of the intake air intake 18 is high, and thus sufficient support rigidity can be obtained as a holding member for the intake duct 20 connected as described above.

  In this embodiment, the front end side of the intake intake portion 18 is configured by a beak-like wall portion 18a extending downward. However, the present invention is not limited to this, and the intake intake portion 18 may be a simple cylinder.

  In addition, the baffle plate that catches water droplets is the hanging wall portion 114 that hangs downward from the tip of the extending wall portion 113 of the upper frame portion 11a. However, the baffle plate is not limited to this, and the baffle plate is a lower wall portion of the intake intake portion 18. It can also be formed so as to extend directly from the bottom.

  Further, the ribs 19, 21, and 22 that connect the intake intake portion 18 to the top portion 111 and the bottom wall portion 112 of the upper frame portion 11a are not necessarily required.

  Further, in this embodiment, the air introduction holes g1 of the front grill G of the automobile V are formed so that all of them are located below the lower end of the hanging wall portion 114. However, the present invention is not limited to this. A part of the introduction hole g1 may be located above the lower end of the drooping wall 114.

1 is an exploded perspective view showing a front end module of an automobile to which an intake intake structure for a vehicle according to an embodiment of the present invention is applied. It is a figure which shows an example of the front part of a motor vehicle. It is a front view of a shroud panel. (a) is the enlarged plan view which looked at the intake intake part from the upper part, (b) is the same front view. FIG. 5 is a cross-sectional view taken along line VV in FIG.

1 Shroud panel 2 Radiator (heat exchanger)
3 condenser (heat exchanger)
11 Radiator holding part 11a Upper frame part (upper frame)
11d Opening 114 Hanging wall (baffle plate)
18 Intake section 18a Beak-shaped wall (lower wall)
20 Intake duct G Front grill g1 Air introduction hole

Claims (4)

A plurality of heat exchangers have a substantially rectangular opening disposed in the longitudinal direction of the vehicle body , and are mounted on the upper frame of the shroud panel integrally disposed at the front of the vehicle body on the back side of the front grille of the vehicle. An intake intake structure for a vehicle in which an intake intake portion penetrating in a direction is provided and an intake duct faces the rear of the intake intake portion,
The intake intake portion is integrally formed with the upper frame and has a cylindrical shape extending in the front-rear direction of the vehicle body. In the vicinity of the lower portion of the front end side, the intake intake portion is suspended downward and at least the intake intake portion is formed. while baffle plates extending in a vehicle width direction so as to include a range in which there is formed integrally with the rear end of the intake the intake join the club is the intake duct is connected,
And forming lower than the lower end of at least the baffle plate air inlet holes of the front grille, among the plurality of heat exchangers, the forwardmost heat exchanger disposed behind the baffle plate, the air inlet holes An air intake intake structure for a vehicle, characterized in that water droplets from the vehicle are captured by the rear surface of the baffle plate after colliding with the front surface of the core of the foremost heat exchanger . 2. The vehicle intake intake structure according to claim 1, wherein a front end edge of the cylindrical intake intake portion is formed to be inclined so as to be positioned forward toward the lower end side. 3. The vehicle according to claim 1, wherein a front-end-side lower wall portion of the cylindrical intake intake portion extends above the baffle plate and forward of the baffle plate. Intake intake structure. The front-end-side lower wall portion of the cylindrical intake intake portion is spaced upward from the baffle plate and forward from the vertical wall portion of the upper frame so as to block the movement of water droplets that are placed upward on the air flow. The intake intake structure for a vehicle according to any one of claims 1 to 3, wherein the intake intake structure extends toward the vehicle.

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