JP5751122B2 - Vehicle front structure - Google Patents

Description

  The present invention relates to a vehicle front structure.

  2. Description of the Related Art Conventionally, there has been known an automobile including a heat exchanger unit provided between a passenger room and a front room, and a manifold that guides air flowing from an airflow inlet provided at a front portion of the automobile to the heat exchanger unit. (For example, refer to Patent Document 1).

JP 2003-211981

  However, in this prior art, the exhaust pipe connected to the engine cannot be cooled.

  The present invention has been made in view of the above problems, and includes cooling a cooling unit provided in a lower front part of a passenger compartment and cooling an exhaust pipe connected to an engine provided in front of the passenger compartment. It aims at providing the vehicle front part structure which can be made to make compatible.

In order to solve the above problem, the vehicle front structure according to claim 1 includes a cooling unit provided at a lower front portion of a passenger compartment, and an exhaust pipe connected to an engine provided at the front of the passenger compartment. A wheel house provided on each side portion of both sides of the engine room housing the engine, a first wheel house air guide plate provided in one of the wheel houses, and the engine from below The cooling unit is provided with an undercover for covering, and is partitioned by an undercover air guide plate disposed between the wheel houses in the vehicle width direction, and the cooling air taken in from an opening provided in the front portion of the vehicle is supplied to the cooling unit. a first cooling air passage leading to a second wheel house air guide plate provided on the other of the wheel house of the wheel house, the undercover baffle Has been partitioned, the cooling air taken in through the opening, and a second cooling air passage leading to the exhaust pipe, the by a.

  According to this vehicle front part structure, the cooling air taken in from the opening provided in the front part of the vehicle is guided to the cooling unit by the first cooling air passage, whereby the cooling unit can be cooled. Moreover, since the cooling air taken in from the opening part is also guided to the exhaust pipe by the second cooling air passage, it is possible to cool the exhaust pipe. Accordingly, both cooling of the cooling unit and cooling of the exhaust pipe can be achieved.

Further , according to this vehicle front structure, the first cooling air passage is divided by the first wheel house air guide plate and the undercover air guide plate, and the second cooling air passage is formed by the second wheel house air guide plate. It is divided by the wind plate and the above-mentioned undercover wind guide plate. Therefore, the first cooling air passage and the second cooling air passage can be formed with a simple configuration.

The vehicle front structure according to claim 2 is the vehicle front structure according to claim 1 , wherein the under cover air guide plate is integrated with an exhaust pipe support rubber joint that supports the exhaust pipe. It is said that.

  According to this vehicle front structure, since the undercover wind guide plate is integrated with the exhaust pipe support rubber joint, the under cover wind guide plate and the exhaust pipe support rubber joint are provided at different locations. Compared to the case, the structure can be simplified.

  As described above in detail, according to the present invention, the cooling of the cooling unit provided in the lower front part of the passenger compartment and the cooling of the exhaust pipe connected to the engine provided in front of the passenger compartment are made compatible. Can do.

It is a perspective view of the vehicle front part structure concerning one embodiment of the present invention. It is side surface sectional drawing of the vehicle front part structure shown by FIG. FIG. 2 is a plan sectional view of the vehicle front structure shown in FIG. 1. It is a perspective view which shows the modification of the vehicle front part structure shown by FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  In each figure, an arrow UP, an arrow FR, and an arrow OUT indicate the vehicle vertical direction upper side, the vehicle front-rear direction front side, and the vehicle width direction outer side, respectively.

  As shown in FIG. 1, a vehicle front structure 10 according to an embodiment of the present invention includes a cooling unit 14 provided in a lower front portion of a vehicle compartment 12. The cooling unit 14 is, for example, a radiator or a condenser of an air conditioner. As shown in FIG. 2, a tunnel portion 18 that bulges on the vehicle upper side and extends in the vehicle front-rear direction is provided at the center in the vehicle width direction of the floor panel 16 constituting the floor portion of the passenger compartment 12. The cooling unit 14 is disposed in the front end opening of the tunnel portion 18.

  A cooling air passage 20 is provided in front of the cooling unit 14, and an opening 24 that opens in the vehicle front-rear direction is formed in a front bumper cover 22 provided in the front of the vehicle. Specifically, the cooling air passage 20 includes a lower surface of an engine 28 housed in an engine room 26 formed in front of the vehicle compartment 12, an under cover 30 that covers the engine 28 from below, and a peripheral edge of the opening 24. A duct part 32 extending from the part to the rear side of the vehicle, and a pair of wheel houses 34, 36 provided on side parts on both sides of the engine room 26, etc.

  In addition, a first wheel house wind guide plate 42 is provided in one of the pair of wheel houses 34 and 36. On the other hand, the second wheel house wind guide plate 44 is provided in the other wheel house 36 of the pair of wheel houses 34 and 36. The first wheel house wind guide plate 42 and the second wheel house wind guide plate 44 are formed integrally with the wheel houses 34 and 36 or separated from the wheel houses 34 and 36. The wheel houses 34 and 36 are fixed integrally.

  The first wheel house wind guide plate 42 has a main body portion 42A extending in the vehicle front-rear direction with the vehicle width direction as the plate thickness direction, an intermediate portion 42B extending inward in the vehicle width direction from the rear end portion of the main body portion 42A, The rear portion 42C extends from the end of the portion 42B on the vehicle width direction inner side to the vehicle rear side. On the other hand, the second wheel house wind guide plate 44 has a main body portion 44A extending in the vehicle front-rear direction with the vehicle width direction as the plate thickness direction, and is formed on the rear side of the main body portion 44A and extends toward the rear side of the vehicle. And a rear portion 44B that curves toward the front.

  The undercover 30 is provided with an undercover air guide plate 46. The undercover air guide plate 46 is formed integrally with the undercover 30, or is separated from the undercover 30 and fixed integrally with the undercover 30. The undercover air guide plate 46 extends from the undercover 30 toward the engine 28 (the vehicle upper side) and extends in the vehicle front-rear direction.

  The undercover air guide plate 46 is disposed between the pair of wheel houses 34 and 36 in the vehicle width direction, and more specifically, between the pair of wheel houses 34 and 36 in the vehicle width direction. It is shifted from the center part toward the other wheel house 36 side. The undercover wind guide plate 46 has a front portion 46A that is directed inward in the vehicle width direction toward the vehicle rear side, and a rear portion 46B that is formed on the rear side of the front portion 46A and extends in the vehicle front-rear direction. A part 48 </ b> A of an exhaust pipe 48 connected to the engine 28 is routed between the undercover air guide plate 46 and the second wheel house air guide plate 44.

  In the vehicle front structure 10, the first wheel house wind guide plate 42, the second wheel house wind guide plate 44, and the undercover wind guide plate 46 make the above-described cooling wind passage 20 the first cooling wind. It is divided into a passage 50 and a second cooling air passage 52.

  That is, the first cooling air passage 50 is partitioned by the first wheel house air guide plate 42 and the undercover air guide plate 46, and the second cooling air passage 52 is connected to the second wheel house air guide plate 44. , And an undercover air guide plate 46. Further, the cooling air W1 taken from the opening 24 is guided to the cooling unit 14 by the first cooling air passage 50, and the cooling air W2 taken from the opening 24 is exhausted by the second cooling air passage 52. Led to. Note that the cooling air W3 flowing through the second cooling air passage 52 is discharged to the outside of the vehicle from the discharge port 54 opened in the wheel house 36 and the like.

  Next, the operation and effect of one embodiment of the present invention will be described.

  According to the vehicle front structure 10, the cooling air W1 taken from the opening 24 provided in the front of the vehicle is guided to the cooling unit 14 by the first cooling air passage 50. Can be cooled. Further, the cooling air W2 taken from the opening 24 is guided to the exhaust pipe 48 by the second cooling air passage 52, so that the exhaust pipe 48 can be cooled. Therefore, both cooling of the cooling unit 14 and cooling of the exhaust pipe 48 can be achieved.

  Moreover, the first cooling air passage 50 is defined by the first wheel house air guide plate 42 and the undercover air guide plate 46, and the second cooling air passage 52 is formed by the second wheel house air guide plate 44, It is partitioned by the above-described undercover air guide plate 46. Accordingly, the first cooling air passage 50 and the second cooling air passage 52 can be formed with a simple configuration.

  Next, a modification of one embodiment of the present invention will be described.

  In the above embodiment, the opening 24 is opened in the front bumper cover 22, but may be opened in a member other than the front bumper cover 22.

  Further, the cooling air passage 20 is configured by the lower surface of the engine 28, the under cover 30, the duct portion 32, the pair of wheel houses 34, 36, and the like, but may be configured by other members and the like. .

  Further, as shown in FIG. 4, the undercover air guide plate 46 may be integrated with a joint 60 of an exhaust pipe support rubber 62 that supports an exhaust pipe 48 connected to the engine 28. In this case, the undercover air guide plate 46 is formed integrally with the joint 60 of the exhaust pipe support rubber 62 or separated from the joint 60 of the exhaust pipe support rubber 62 and then the exhaust pipe support rubber. It may be fixed integrally to 62 joints 60. Further, the joint 60 of the exhaust pipe support rubber 62 may be a member for suppressing vibration transmission of the exhaust pipe 48, or may be a member for suppressing heat transfer of the exhaust pipe 48. good.

  Thus, when the undercover air guide plate 46 is integrated with the joint 60 of the exhaust pipe support rubber 62, the undercover air guide plate 46 and the joint 60 of the exhaust pipe support rubber 62 are provided at different locations. The structure can be simplified as compared with the case where it is provided.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

DESCRIPTION OF SYMBOLS 10 Vehicle front part structure 12 Car compartment 14 Cooling unit 24 Opening part 26 Engine room 28 Engine 30 Undercover 34,36 Wheel house 42 First wheel house wind guide plate 44 Second wheel house wind guide plate 46 Under cover wind guide plate 48 Exhaust pipe 50 First cooling air passage 52 Second cooling air passage 60 Exhaust pipe support rubber joint 62 Exhaust pipe support rubber

Claims (2)

A cooling unit provided in the lower front part of the passenger compartment;
An exhaust pipe connected to an engine provided in front of the passenger compartment;
A wheel house provided on each side portion of both sides of the engine room containing the engine;
A first wheel house wind guide plate provided in one of the wheel houses and an under cover that is provided in an under cover that covers the engine from below and disposed between the wheel houses in the vehicle width direction. A first cooling air passage that is partitioned by an air plate and guides the cooling air taken from an opening provided in the front of the vehicle to the cooling unit;
A second wheel house wind guide plate provided in the other wheel house of the wheel houses and the under cover wind guide plate define a cooling air introduced from the opening to the exhaust pipe. Two cooling air passages;
Vehicle front structure with The undercover air guide plate is integrated with an exhaust pipe support rubber joint that supports the exhaust pipe,
The vehicle front structure according to claim 1.