JP6504140B2 - Vehicle cooling system - Google Patents

Description

  The present invention relates to a vehicle cooling system for cooling an intake system or the like in an engine room.

  As a cooling device for vehicles of vehicles, such as a car, a thing given in patent documents 1 is known. The apparatus described in Patent Document 1 is a device for introducing external air into an engine room of a vehicle to cool the engine room, a duct having one end opened between the engine and the dash panel and the other end opened outward. There is a fan that sends outside air to the engine room at the appropriate position of this duct. More specifically, in the case described in Patent Document 1, a duct is formed on the back surface of the bonnet, and outside air is introduced to the duct from an air intake at the front of the vehicle body.

Japanese Utility Model Application Publication No. 3-50523

  However, although the conventional vehicle cooling device can cool the parts in the engine room with the outside air flowing out of the duct, the hot air flowing out of the radiator should not flow around the parts to be cooled. There was a problem that I could not

  Further, in the conventional vehicle cooling device, when the front lower sloped portion is provided at the upper end of the front grille by design, the outside air flowing into the gap between the bonnet and the front lower sloped portion is formed on the lower surface of the bonnet It flows away along the back.

  Therefore, the conventional vehicle cooling device can not change the flow direction of the hot air passing through the radiator by the outside air flowing out of the duct, and the hot air passing through the radiator flows into the periphery of the component to be cooled There was a problem that. Moreover, in the conventional vehicle cooling device, there is a problem that the shape of the upper end of the front grill is limited in order to prevent the hot air having passed through the radiator from flowing into the periphery of the parts to be cooled.

  The present invention has been made focusing on the above problems, and can improve the cooling performance of the intake system disposed in the engine room without being influenced by the shape of the upper end of the front grille. It is an object of the present invention to provide a cooling device for a vehicle.

The present invention has a front grille disposed on the front of the vehicle and covering the engine room at the front of the vehicle from the front, and a main body extending in the vertical direction of the vehicle, and the upper end of the main body is the upper end of the front grille. From the front of the engine room, a radiator disposed at the rear of the front grille in the engine room, an engine arranged in the engine room so that the output shaft faces in the vehicle width direction, and a lower position. An intake system having an intake pipe for supplying the taken-in air to the engine, and a part of the intake pipe disposed in a space behind the radiator; an upper portion of the front grille and an upper portion of the engine room And a bonnet disposed so as to form a gap between the cover and the upper end of the front grille, and In the cooling device for a vehicle in which traveling wind is introduced into the room, the front grill has a front downward sloping portion on the upper end face thereof, and is inclined rearward and downward above the radiator and below the bonnet. An air guide plate having a head portion is provided, and the rear lower inclined portion is inclined so that the extension surface thereof is directed to the lower portion of the intake pipe disposed in the space behind the radiator, the bonnet Has an inner panel on its inner side, and the wind guide plate extends downward at the front edge of the wind guide plate, and has a front edge fixed to the front of the inner panel; And a leg portion extending upward from the upper surface and fixed to the inner panel .

  According to the present invention, the cooling performance of the intake system disposed in the engine room can be improved without being influenced by the shape of the upper end of the front grille.

FIG. 1 is a plan view of an engine room of a vehicle equipped with a vehicle cooling device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 1 is a front view of a vehicle equipped with a cooling system for a vehicle according to an embodiment of the present invention. FIG. 4 is a left side view of an engine room of a vehicle equipped with a cooling system for a vehicle according to an embodiment of the present invention. FIG. 5 is a perspective view of a baffle plate of a cooling system for a vehicle according to an embodiment of the present invention. FIG. 6 is a front view of a baffle plate of a vehicle cooling device according to an embodiment of the present invention. FIG. 7 is a plan view of a baffle plate of a vehicle cooling device according to an embodiment of the present invention. FIG. 8 is a left side view of the baffle plate of the vehicle cooling device according to one embodiment of the present invention.

  A cooling system for a vehicle according to an embodiment of the present invention includes a front grille disposed on the front of the vehicle and covering an engine room at the front of the vehicle from the front, and a main body extending in the vertical direction of the vehicle A radiator disposed behind the front grille in the engine room so that the upper end of the section is lower than the upper end of the front grille, an engine disposed in the engine room with the output shaft facing in the vehicle width direction, and an engine room Air intake piping which supplies air taken in from the front of the engine to the engine, and a part of the intake piping is disposed in the space behind the radiator, and covers the upper side of the front grille and the upper side of the engine room , And a bonnet arranged to form a gap with the upper end of the front grille, and the traveling wind is introduced from the front of the vehicle to the engine room through the gap. In the vehicle cooling device, the front grill has a front downward sloping portion on its upper end face, and a baffle plate having a rear falling slope is provided above the radiator and below the bonnet, The rear-down inclined portion is characterized in that the extension surface is inclined in the direction of the lower portion of the intake pipe disposed in the space behind the radiator. Thus, the vehicle cooling device according to the embodiment of the present invention can improve the cooling performance of the intake device disposed in the engine room without being influenced by the shape of the upper end of the front grille.

  Hereinafter, a vehicle cooling device according to an embodiment of the present invention will be described with reference to the drawings. 1 to 8 are views showing a vehicle cooling device according to an embodiment of the present invention. In FIGS. 1 to 8, the directions indicated by upper, lower, right, and left are directions as viewed from the driver's seat.

  First, the configuration will be described. In FIGS. 1, 2, 3 and 4, the vehicle 1 is provided with a vehicle body 10, and the vehicle body 10 has an engine room 14 at the front of the vehicle 1. The engine compartment 14 is covered from the rear and the side by the dash panels 10A of the vehicle body 10 and the left and right fender aprons 10B.

  A front bumper 11 and a front grill 12 are provided at the lower and upper portions of the front end portion of the vehicle body 10, respectively. The front bumper 11 and the front grill 12 are disposed on the front of the vehicle 1 and cover the engine room 14 from the front.

  In the present embodiment, the front bumper 11 and the front grill 12 are integrally configured. The front bumper 11 is provided at the lower part of the front end of the vehicle 1 across both ends in the vehicle width direction. The front grille 12 is provided above the front bumper 11 and between the left and right headlights 18 at the front end of the vehicle 1.

  The front bumper 11 is provided with an outside air intake 11A, and the traveling wind from the front of the vehicle is introduced into the engine room 14 through the outside air intake 11A. The front grill 12 is provided with an outside air intake 12B, and the traveling wind from the front of the vehicle is introduced into the engine room 14 through the outside air intake 12B.

  The vehicle 1 is provided with a bonnet 15 which covers the upper side of the front grille 12 and the upper side of the engine room 14 and is disposed so as to form a gap 13 with the upper end of the front grille 12 . The traveling wind from the front of the vehicle is introduced into the engine room 14 through the gap 13.

  An engine 21, a transmission 32, and a radiator 31 are provided in the engine room 14. The engine 21 is disposed laterally to the right of the central portion of the engine compartment 14 in the vehicle width direction so that the output shaft 21A is directed in the vehicle width direction. The transmission 32 is disposed to the left of the center of the engine compartment 14 in the vehicle width direction, and is connected to the left end of the engine 21.

  The radiator 31 includes a main body 31A. The main body portion 31A is a rectangular radiator extending in the vertical direction of the vehicle, and a cooling fan 31B is attached. A coolant for cooling the engine 21 is circulated in the main body 31A. The radiator 31 cools the coolant by heat exchange between the coolant and the outside air taken in from the outside air intake 11A, and releases heat to the engine room 14.

  The radiator 31 is disposed behind the front grille 12 in the engine compartment 14 so that the upper end of the main body 31A is lower than the upper end of the front grille 12. More specifically, the radiator 31 is disposed behind the outside air intake 11A of the front bumper 11 and the outside air intake 12B of the front grille 12.

  The cooling fan 31B is provided on the rear surface of the main body portion 31A, sucks outside air from the front of the main body portion 31A, and discharges the outside air having passed through the main body portion 31A into the engine room 14.

  A lock mechanism 17 of the bonnet 15 is provided above the main body 31A, and the lock mechanism 17 of the bonnet 15 engages with a striker disposed at the front end of the bonnet 15 to keep the bonnet 15 closed. .

  An intake system 30 is provided in the engine compartment 14, and the intake system 30 has an air inlet 22, an air inlet duct 23, an air cleaner 24, an air cleaner outlet hose 25, a throttle body 26, an inlet pipe 27 and an intake manifold 28. .

  The air inlet 22 is formed in a box shape that opens forward, and is disposed at the top of the front of the engine compartment 14 and to the right of the center in the vehicle width direction. The air inlet 22 is disposed to the rear of the gap 13 and takes in the traveling wind via the gap 13. The air inlet duct 23 is connected to the left side surface of the air inlet 22, extends leftward from the air inlet 22, and extends rearward.

  The air cleaner 24 is disposed above the rear of the engine 21. An air inlet duct 23 is connected to the front of the air cleaner 24. The air cleaner outlet hose 25 is connected to the left side surface of the air cleaner 24 and extends leftward from the air cleaner 24 and then downward.

  The throttle body 26 is connected to the downstream end of the air cleaner outlet hose 25 in the intake flow direction, and extends downward. The inlet pipe 27 is connected to the lower end of the throttle body 26, extends downward, then extends rightward and is connected to the intake manifold 28. The intake manifold 28 is disposed rearward of the engine 21 and below the air cleaner 24, and is connected to an intake port (not shown) at the rear of the engine 21.

  The air inlet 22, the air inlet duct 23, the air cleaner 24, the air cleaner outlet hose 25, the throttle body 26, the inlet pipe 27, and the intake manifold 28 constitute an intake pipe in the present invention. The air taken in from the front of the engine 21 is supplied to the engine 21.

  Among these members constituting the intake pipe, the air cleaner outlet hose 25, the throttle body 26, the inlet pipe 27, and the intake manifold 28 are disposed in the space behind the radiator 31, and a part of the intake pipe in the present invention is Configured.

  In the present embodiment, the intake manifold 28 is connected to the rear of the engine 21. However, when the engine 21 is a rear exhaust type and the intake port is disposed at the front of the engine 21, the intake manifold 28 is the engine 21. Connected to the front of the

  A resonator 29 is provided to the left of the air inlet duct 23 in the engine compartment 14 and in front of the air cleaner outlet hose 25. In other words, the resonator 29 is disposed on the upper front side of the intake pipe.

  The resonator 29 is formed in a box shape as a whole, and is disposed at the top of the space behind the radiator 31. The resonator 29 is connected to the air inlet duct 23 via the connecting pipe 29A, and reduces the intake noise generated in the air inlet duct 23 by resonance.

  In the present embodiment, a front downward slope 12A is formed on the upper end surface of the front grille 12, and the front downward slope 12A is inclined downward toward the front. The front downward slope 12A is provided for design and functional reasons.

  Specifically, the front downward inclined portion 12A is provided for design reasons for the purpose of making it difficult to see the depth of the gap 13 from the upper front of the vehicle 1. In addition, the front downward inclined portion 12A is provided for the functional reason of smoothly guiding the traveling air flowing upwards against the front grille 12 below the clearance 13 to the clearance 13 and collecting the traveling air in the clearance 13 There is. A baffle plate 40 is disposed above the radiator 31 and below the bonnet 15.

  5, 6, 7 and 8, the baffle plate 40 has a front edge 41 extending downward at the front edge of the baffle plate 40 and a horizontal extending horizontally rearward from the upper end of the front edge 41. It has the board part 42, and the back falling inclination part 43 extended in the rear side diagonally downward from the rear edge of the horizontal board part 42. FIG.

  The baffle plate 40 has two legs 44, which extend upward from the upper surface of the trailing slope 43. The upper ends of the two legs 44 are connected by a connecting portion 45. Mounting holes 44A are respectively provided at upper end portions of the two leg portions 44. Four attachment holes 41A are provided in the front edge portion 41 of the baffle plate 40 at predetermined intervals.

  The air guide plate 40 is fastened to the inner side surface of the bonnet 15 above the radiator 31 by bolts (not shown) passing through the mounting holes 44A of the legs 44 and the mounting holes 41A of the front edge portion 41.

  In FIGS. 1, 2, 3 and 4, the extension surface of the rear lower slope 43 faces in the direction of the throttle body 26, the inlet pipe 27, and the intake manifold 28. That is, the downward slope 43 is inclined so that the extension surface is directed to the throttle body 26, the inlet pipe 27 and the intake manifold 28 which are the lower part of the intake pipe disposed in the space behind the radiator 31. There is.

  The hood 15 has an inner panel 16 on its inner side. A frame portion 16A is disposed at the front of the inner panel 16, and the frame portion 16A extends in the vehicle width direction and protrudes downward. The frame portion 16A is formed in a bag shape and bulges downward at the front of the bonnet 15.

  The front edge portion 41 of the baffle plate 40 is fixed to the inner panel 16 at the front side of the frame portion 16A. The legs 44 of the baffle plate 40 are fixed to the inner panel 16 on the rear side of the frame portion 16A.

  The legs 44 are fixed to the inner panel 16 by bolts (not shown) passing through the mounting holes 44A. The front edge portion 41 is fixed to the front of the inner panel 16 by a bolt (not shown) passing through the mounting hole 41A.

  By attaching the baffle plate 40 to the lower surface of the inner panel 16 of the bonnet 15 in this manner, the baffle plate 40 is prevented from interfering with components arranged in the vicinity of the upper surface of the radiator 31. Can be fixed.

  When the baffle plate 40 can be attached to the upper end of the radiator 31 or the front grille 12, the baffle plate 40 may be attached to the upper end of the radiator 31 or the front grille 12. In this case, a mounting member corresponding to the leg portion 44 is provided on the lower surface of the wind guide plate 40, and the wind guide plate 40 is mounted to the upper end of the radiator 31 or the front grill 12 via the mounting member.

  The bottom surface of the resonator 29 is disposed at a position lower than the upper end of the front grille 12. The bottom surface of the resonator 29 is provided with a flat rear inclined portion 29B, and the rear inclined portion 29B is inclined rearward and downward.

  In the case where the rearward inclined portion 43 of the baffle plate 40 is a first inclined portion, and the rearward inclined portion 29B of the resonator 29 is a second inclined portion, the rearward inclined portion 29B as a second inclined portion is A rear downward inclined portion 43 as a first inclined portion is disposed above the surface extended to the rear of the vehicle and in the vicinity of the extended surface.

  Next, the operation will be described. In FIG. 4, the outside air taken into the outside air intakes 11A and 12B flows horizontally into the radiator 31 as indicated by an arrow 52. The temperature of the outside air, which has passed through the radiator 31 and rises in temperature, hits the front of the transmission 32 in a state where the buoyancy is increased by the temperature rise.

  Then, as indicated by an arrow 53, the outside air having passed through the radiator 31 has increased buoyancy and has hit the front face of the transmission 32, and the air cleaner outlet hose 25, the throttle body 26, the inlet pipe 27, and the intake air. Flow is directed to the rear side obliquely upward with the manifold 28.

  In the vehicle cooling device of the present embodiment, the front grille 12 has a front downward slope 12A on its upper end surface. For this reason, the traveling wind introduced into the gap 13 between the front grille 12 and the bonnet 15 is directed obliquely upward toward the rear side along the front downward sloping portion 12A above the front grille 12 as indicated by the arrow 56. Flow.

  Further, in the vehicle cooling device of the present embodiment, the air guide plate 40 having the rear inclined portion 43 is provided above the radiator 31 and below the bonnet 15. Therefore, as indicated by arrow 57, the outside air flowing obliquely upward at the rear side along the front downward inclined portion 12A of the front grille 12 is diverted to the rear side obliquely downward by the rear downward inclined portion 43 of the baffle plate 40. be able to.

  Further, in the vehicle cooling device of the present embodiment, the rear down sloping portion 43 of the air guide plate 40 has its extended surface directed in the direction of the throttle body 26, the inlet pipe 27 and the intake manifold 28 which is the lower part of the intake pipe. It is inclined to Therefore, as indicated by the arrow 58, the traveling air can be guided around the intake pipe such as the throttle body 26, the inlet pipe 27, the intake manifold 28, etc. to cool the intake pipe.

  Further, as indicated by an arrow 54, the hot air discharged to the rear of the vehicle from the radiator 31 as indicated by an arrow 53 by the flow of the traveling wind indicated by an arrow 57 is a throttle body 26, an inlet pipe 27, an intake manifold 28, etc. Can be discharged downward from the lower part of the engine compartment 14 to the outside.

  In the present embodiment, even if the front grille 12 has the forwardly downward sloping portion 12A on its upper end surface in design, the traveling wind can be taken into an intake pipe such as the throttle body 26, the inlet pipe 27, the intake manifold 28, etc. It can be led around to cool the intake piping.

  As a result, the cooling performance of the intake system 30 disposed in the engine compartment 14 can be improved without being influenced by the shape of the upper end of the front grille 12.

  In the vehicle cooling device of the present embodiment, the air guide plate 40 is attached to the inner side surface of the bonnet 15 above the radiator 31.

  With this configuration, even if it is difficult to attach the wind guide plate 40 to the upper end surface of the radiator 31 or the like due to interference with other members, the wind guide plate 40 can be supported on the inner surface of the bonnet 15 it can.

  In the vehicle cooling device of the present embodiment, the bonnet 15 has the inner panel 16 on the inner surface thereof, and the wind guide plate 40 extends downward at the front edge of the wind guide plate 40 at the front of the inner panel 16. It has a front edge portion 41 to be fixed, and a leg portion 44 that extends upward from the top surface of the rear slope 43 and is fixed to the inner panel 16.

  With this configuration, it is possible to fix the trailing downward inclined portion 43 receiving the pressure of the traveling wind to the inner panel 16 of the bonnet 15 by the leg portion 44 extending upward from the upper side of the trailing downward inclined portion 43. It can suppress that 40 is deformed.

  In the vehicle cooling device of this embodiment, a frame portion 16A extending in the vehicle width direction and protruding downward is disposed at the front of the inner panel 16 and the front edge portion 41 is on the front side of the frame portion 16A. It fixes to the inner panel 16, and the leg part 44 is being fixed to the inner panel 16 in the back side of flame | frame part 16A.

  With this configuration, the air guide plate 40 can be disposed at an appropriate position relative to the front downward sloping portion 12A of the front grille 12 without being influenced by the frame portion 16A of the inner panel 16.

  In the vehicle cooling device of this embodiment, the resonator 29 is disposed forward of the throttle body 26, the inlet pipe 27, and the upper side of the intake manifold 28, and the bottom surface of the resonator 29 is disposed lower than the upper end of the front grille 12. The rear sloped portion 29B is provided on the bottom surface of the resonator 29.

  Then, when the rearward inclined portion 43 of the baffle plate 40 is a first inclined portion and the rearward inclined portion 29B of the resonator 29 is a second inclined portion, the rearward inclined portion 29B as a second inclined portion. Is disposed on the upper side of the surface of the rear downward inclined portion 43 as the first inclined portion, which extends to the rear of the vehicle.

  According to this configuration, the traveling wind flowing from the rear downward inclined portion 43 of the air guide plate 40 as the first inclined portion to the vehicle rear is supplemented by the rear downward inclined portion 29B of the resonator 29 as the second inclined portion It can flow down and can suppress the traveling wind from diffusing upward.

  Therefore, the traveling air can be more reliably guided to the intake piping such as the throttle body 26, the inlet pipe 27, the intake manifold 28, etc., and the cooling performance of the intake piping such as the throttle body 26, the inlet pipe 27, the intake manifold 28 etc. is improved. It can be done.

  While embodiments of the present invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the present invention. All such modifications and equivalents are intended to be included in the following claims.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 12 ... Front grille, 12A ... Forward downward inclination part, 13 ... Gap, 14 ... Engine room, 15 ... Bonnet, 16 ... Inner panel, 16A. .. Frame part, 21 ... engine, 21 A ... output shaft, 22 ... air inlet (intake piping), 23 ... air inlet duct (intake piping), 24 ... air cleaner (intake piping) , 25 ... air cleaner outlet hose (intake piping), 26 ... throttle body (intake piping), 27 ... inlet pipe (intake piping), 28 ... intake manifold (intake piping), 29 ... Resonator, 29B: back inclined part (second inclined part), 30: intake device, 31: radiator, 31A: main body part, 40: air guide plate, 41 .. · · · · · · Leading edge, 43 · · · sloped portion (first slope), 44 · · · leg

Claims (4)

A front grille disposed on the front of the vehicle and covering the engine room at the front of the vehicle from the front,
A radiator disposed at the rear of the front grille in the engine room, having a main body portion extending in the vertical direction of the vehicle, the upper end of the main body portion being lower than the upper end of the front grille;
An engine disposed in the engine room such that the output shaft is directed in the vehicle width direction;
An intake system having an intake pipe for supplying air taken in from the front of the engine room to the engine, and a part of the intake pipe is disposed in a space behind the radiator;
And a bonnet arranged to cover the upper side of the front grille and the upper side of the engine room so as to form a gap between the front grille and the upper end of the front grille,
In the cooling system for a vehicle, the traveling wind is introduced to the engine room from the front of the vehicle through the gap.
The front grille has a front downward slope on its upper end surface,
An air guide plate having a trailing slope is provided above the radiator and below the bonnet.
Inclined portion down after the is inclined to face the direction of the lower of the intake pipe thereof extending surface is disposed in the space behind the radiator,
The bonnet has an inner panel on its inner side,
The air guide plate extends downward from the front edge of the air guide plate and is fixed to the inner panel by extending upward from the upper surface of the rear inclined portion and fixed to the front of the inner panel. A cooling system for a vehicle, comprising:   The vehicle cooling device according to claim 1, wherein the air guide plate is attached to an inner side surface of the bonnet above the radiator. A frame portion extending in the vehicle width direction and protruding downward is disposed at the front of the inner panel,
The front edge portion is fixed to the inner panel on the front side of the frame portion, and the leg portion is fixed to the inner panel on the rear side of the frame portion. the vehicle cooling device according to 2. A resonator is disposed on the upper front side of the intake pipe,
The bottom of the resonator is positioned lower than the upper end of the front grille,
On the bottom surface of the resonator, a downward slope is provided.
In the case where the back inclined portion of the air guide plate is a first inclined portion and the back inclined portion of the resonator is a second inclined portion,
The vehicle cooling device according to claim 1, wherein the second inclined portion is disposed above a surface of the first inclined portion extended rearward of the vehicle.

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