JP5706733B2 - Vehicle cooling air introduction device - Google Patents

Description

  The present invention divides the gap between the bumper beam and the frame on which the heat exchanger is fixed using a partition member into the upper and lower sides, so that the cooling air introduced from below the bambi beam and the cooling air introduced from above are provided. The present invention relates to a vehicle cooling air introduction device that avoids interference with the vehicle.

  As is well known, a front bumper is provided at the front of a vehicle such as an automobile, and a front grill is provided above the front bumper. The front bumper has a bumper face that forms an outer surface and a bumper beam disposed on the inner surface. The bumper face and the front grille have a lower air inlet and an upper air inlet, respectively. Cooling air introduced from the air inlet is led to a heat exchanger (an engine cooling radiator, an air conditioner condenser, etc.) disposed at the front of the engine room and cooled.

  The bumper beam arranged on the back of the bumper face extends in the vehicle width direction, and a gap is provided between the bumper beam and the heat exchanger to ensure at least a crash stroke during a light front collision. It has been.

  The rear surfaces on both sides of the bumper beam are fixed to the front end of a front side frame disposed on the left and right in the vehicle width direction, and a crash box is provided at the front end of the front side frame. When the vehicle collides with the front, the impact load is transmitted to the front side frame via the bumper beam. First, the crash box is crushed in a bellows shape and a part of the impact energy is absorbed. By securing a gap for the crash stroke between the bumper beam and the heat exchanger, even if the crash box is axially crushed and the bumper beam moves backward during a light collision, contact with the heat exchanger is avoided and heat exchange is performed. Can be protected from damage.

  By the way, as described above, since a gap is provided between the bumper beam and the heat exchanger, the cooling air taken in from the lower air inlet opening in the bumper face during the traveling is not heated between the bumper beam and the heat exchanger. A vortex-like turbulent flow is generated by interfering with cooling air taken up from an upper air duct opening opened in the front grille at a gap formed between the exchanger and the upper part. And this turbulent flow becomes ventilation resistance of cooling air, and there exists a malfunction which the cooling performance of a heat exchanger falls.

  In order to cope with this, for example, in Patent Document 1 (Japanese Patent Laid-Open No. 11-11163), a gap formed between the bumper and the heat exchanger is vertically moved by a plate-shaped control member (partition member). A technique is disclosed in which the cooling air introduced from the air guide openings opened in both the front bumper and the front grill is guided to the heat exchanger without interfering with each other.

JP-A-11-111163

  However, in the technique disclosed in the above-described document, the rear end of the plate-like control member (partition member) is close to the front surface of the heat exchanger. There is a possibility that the control member that is fixedly retreats integrally, and the rear end thereof contacts the heat exchanger and damages the heat exchanger.

  In view of the above circumstances, the present invention not only can efficiently guide the cooling air introduced from the air guide port formed in the front member to the heat exchanger side, but can also retract the partition member during a light collision. It is an object of the present invention to provide a cooling air introduction device for a vehicle that can effectively protect the heat exchanger from damage without damaging the heat exchanger.

A cooling air introduction device for a vehicle according to the present invention includes a frame for fixing a heat exchanger disposed in a front portion of a vehicle body, a bumper beam disposed with a set gap in front of the frame, and air guide port for introducing the cooling air opened in the upper and lower side of the bumper beam, the frame rear end is fixed to, the gap is overhung on one of the top and bottom of the front end is the bumper beam, the lower conductive Kazeguchi Prefecture for introducing a cooling air from the lower side of the upper air guide port and said bumper beam for introducing the cooling air from the upper side of the bumper beam and a partition Ru partition member.

  According to the present invention, since the partition member is interposed in the gap between the heat exchanger and the bumper beam, the cooling air introduced from the air inlets formed below and above the bumper beam does not interfere with each other. Can lead to an exchanger. In addition, the partition member is fixed to the frame for fixing the heat exchanger, and the front end is overhanged on one of the upper and lower portions of the bumper beam. The front end does not contact the bumper beam, and the heat exchanger can be effectively protected from damage.

Front view of main parts of vehicle II-II sectional view of FIG. Plan view of cooling air introduction device Perspective view of radiator panel and upper and lower partition members

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a vehicle body front part 1 of an automobile which is an example of a vehicle is provided with a front bumper 3 at the foremost part, and a front grille 4 is provided above the front bumper 3. On the other hand, an engine room E is provided. Further, a front hood 5 is provided at the upper portion of the vehicle body front portion 1, and the upper portion of the engine room E is covered with the front hood 5 so as to be freely opened and closed. In the engine room E, a power unit such as an engine (not shown) is mounted.

  In addition, a heat exchanger (hereinafter referred to as “radiator”) 7 constituting an engine cooling system is disposed in front of the engine room E, and further, a refrigeration cycle of an air conditioner is configured in front of the radiator 7. A heat exchanger (hereinafter referred to as “condenser”) 8 is disposed.

  The radiator 7 and the capacitor 8 are fixed to a radiator panel 9 (see FIGS. 2 and 3) as a frame. The radiator panel 9 is formed in a rectangular frame shape in a front view in which vertical frames 9a are provided on both sides in the vehicle width direction, a lower frame 9b is provided in the lower part, and an upper frame 9c is provided in the upper part. Further, a stay 9d connects the lower frame 9b and the upper frame 9c at the center of the radiator panel 9 in the vehicle width direction. Further, the vertical frames 9a are fixed to a pair of front side frames 12 that are disposed on the left and right in the vehicle width direction and extend in the front-rear direction of the vehicle body.

  On the other hand, the front bumper 3 is disposed on the rear surface of the bumper face 11 that functions as a part of the shaping of the front surface of the vehicle body, and extends in the vehicle width direction along the bumper face 11. The front surface of the front side frame 12 is fixed to the back surfaces of both sides of the bumper beam 13. A crash bracket 14 is disposed below the bumper beam 13.

  Further, a lower impact absorbing material 15 a is interposed between the inner surface of the bumper face 11 and the crash bracket 14, and the back surface thereof is attached to the front end surface of the crash bracket 14. Further, an upper impact absorbing material 15 b is interposed between the inner surface of the bumper face 11 and the bumper beam 13, and the back surface thereof is attached to the front surface of the bumper beam 13. Further, a lower air guide port 3 a is opened in the front bumper 3, while an upper air guide port 4 a is formed in the front grill 4. Furthermore, a vertical support portion 3b having a predetermined width is formed at the center of the lower air guide port 3a in the vehicle width direction, and the lower air guide port 3a is divided into left and right by the vertical support portion 3b.

  The crash bracket 14 is formed in a box shape that closes between the lower portion of the bumper face 11 and the lower frame 9b of the radiator panel 9, and the upper surface 14a thereof is formed substantially on the same surface as the lower surface of the lower air guide port 3a. It has a function as a current plate when the cooling air is introduced.

  Further, a gap H for absorbing a crash stroke at the time of a light front collision is provided between the bumper beam 13 and the condenser 8, and the upper and lower partition members 16 are horizontally disposed in the gap H. The upper and lower partition members 16 are made of sheet metal or resin. As shown in FIGS. 3 and 4, tongue-shaped seating surfaces 16 a are bent at three locations at the rear part. This seat surface 16a is attached to the left and right vertical frame 9a of the radiator panel 9 and the stay 9d. The width of each seat surface 16b is the width of the corresponding vertical frame 9a of the radiator panel 9 and the width of the stay 9d. It is the same as or narrower than that. The left and right vertical frames 9a and the stay 9d of the radiator panel 9 are screwed with screw holes for attaching the seating surface 16a, while the seating surface 16a is provided with a bolt insertion hole.

  Further, as shown in FIG. 2, in a state where the seating surface 16a of the upper and lower partition members 16 is attached to the radiator panel 9, the front end of the upper and lower partition members 16 is overhanged on the upper part of the bumper beam 13 and the gap H Is divided into a lower air guide port 3a side and an upper air guide port 4a side. Further, the upper surface 16b of the upper and lower partition members 16 is formed flat, and functions as a rectifying plate that guides cooling air introduced from the upper air guide port 4a to the capacitor 8 side.

  Next, the operation of the present embodiment having such a configuration will be described. When the vehicle travels, cooling air is introduced from the front of the vehicle body through the lower air inlet 3a opened in the front bumper 3 and the upper air inlet 4a opened in the front grill 4 and introduced into the front part 1 of the vehicle body. The

  A gap H communicating with the lower air guide port 3a and the upper air guide port 4a is vertically divided by an upper and lower partition member 16 interposed between the bumper beam 13 and the capacitor 8, and the upper surface 16b serves as a current plate. In order to function, the cooling air introduced from the upper air guide 4 a is guided along the upper surface 16 b of the upper and lower partition members 16 toward the condenser 8 and the radiator 7 facing the back thereof.

  On the other hand, a part of the cooling air introduced from the lower air inlet 3a is opposed to the capacitor 8 and the back side along the upper surface 14a of the crash bracket 14 disposed on the bottom surface of the lower air inlet 3a. It is led in the direction of the existing radiator 7. Further, another part of the cooling air introduced from the lower air inlet 3a is wound upward, and is guided along the lower surface 16c of the upper and lower partition members 16 toward the condenser 8 and the radiator 7 facing the back thereof. It is burned.

  At this time, as shown in FIGS. 2 and 3, since the front end of the upper and lower partition members 16 is overhanged on the upper part of the bumper beam 13, the rear part is fixed to the radiator panel 9, and the upper and lower parts are partitioned. The cooling air flowing along the upper surface 16b and the cooling air flowing along the lower surface of the upper and lower partition members 16 are guided toward the capacitor 8 without interfering with each other, and thus without generating a vortex turbulent flow. As a result, the condenser 8 and the radiator 7 can be efficiently cooled.

  Further, since the upper and lower partition members 16 according to the present embodiment can be attached simply by screwing the screw holes in the radiator panel 9, they can be easily attached to an existing vehicle, and high versatility can be obtained. Can do. Further, the seat surface 16a formed on the upper and lower partition members 16 is formed only at a portion where the vertical frame 9a and the stay 9d of the radiator panel 9 are in contact with each other, and the width of the vertical frame 9a and the stay 9d corresponding to each other. Therefore, the front surface of the capacitor 8 is not blocked by the seating surface 16a. Therefore, even if the upper and lower partition members 16 are arranged in the gap H, a large ventilation resistance is not generated and the cooling efficiency for the heat exchanger (the condenser 8 and the radiator 7) is not lowered.

  Further, since the front end of the upper and lower partition members 16 is overhanged on the upper portion of the bumper beam 13, the upper and lower partition members 16 do not come into contact with the bumper beam 13 even when the bumper beam 13 moves backward during a light collision. The radiator panel 9 and the capacitor 8 are not pressed by the upper and lower partition members 16. As a result, the radiator panel 9, the capacitor 8, and the radiator 7 can be effectively protected from damage, and the burden of repair costs can be reduced.

  By the way, as shown in FIG. 2, a gap H ′ is formed between the front end of the upper and lower partition members 16 and the inner surface of the bumper face 11, and when cooling air is introduced from the upper air guide 4a, When a vortex-like turbulent flow is generated in the gap H ′, the gap H ′ may be closed with a foam such as urethane.

  The present invention is not limited to the above-described embodiment. For example, the upper and lower partition members 16 may be provided on the lower air guide port 3a side, and the front stage may be overhanged below the bumper beam 13.

1 ... the front of the car body
3 ... Front bumper,
3a: Lower air guide,
4 ... Front grille,
4a ... Upper air guide,
7 ... Radiator,
8: Capacitor,
9 ... Radiator panel,
9a ... vertical frame,
9d ... Stay,
11 ... Bumper face,
13 ... Bumper beam,
16 ... upper and lower partition members,
16a ... the seat ,
16b ... upper surface,
16c ... lower surface,
H ... Gap

Claims (3)

A frame for fixing a heat exchanger disposed at the front of the vehicle body;
A bumper beam disposed with a set gap in front of the frame;
An air inlet that introduces cooling air that opens above and below the bumper beam;
Rear end fixed to the frame body, said gap being overhangs one of the top and bottom of the front end is the bumper beam, the lower side of the upper air guide port and said bumper beam for introducing the cooling air from the upper side of the bumper beam air introduction device for a vehicle, characterized in that it comprises a partition Ru partition member to the lower guide Kazeguchi Prefecture for introducing a cooling air from. 2. The vehicle cooling according to claim 1, wherein a width of a seating surface attached to the frame body of the partition member is formed to be equal to or narrower than a width of the frame body to which the seating surface is attached. Wind introduction device. The partition member is disposed horizontally above the bumper beam and has a flat upper surface.
The cooling air introduction device for a vehicle according to claim 1 or 2, characterized in that

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