CN214775761U

CN214775761U - Automobile shank protection bracket, automobile front end flow guide system and automobile

Info

Publication number: CN214775761U
Application number: CN202120062137.5U
Authority: CN
Inventors: 郝旭飞; 王仁铃; 刘松高; 杨勇
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-11-19
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to an automobile field discloses a car shank protective cradle, car front end water conservancy diversion system and car, car shank protective cradle includes relative interval arrangement's last guide plate and lower guide plate from top to bottom, the rear end of going up the guide plate with the rear end of guide plate is connected with the back connecting plate down, the back connecting plate with the laminating of front end module is fixed, go up the guide plate with be provided with the strengthening rib structure that the fore-and-aft direction extends down between the guide plate, the front end of strengthening rib structure extend to front bumper rear end and with front bumper dustcoat around relative interval arrangement. The upper guide plate of the automobile shank protecting support can realize the flow guiding effect on the air flow above the automobile front protection outer cover, and meanwhile, the lower guide plate can realize the flow guiding effect on the air flow below the automobile front protection outer cover, so that the wind resistance is reduced, and energy conservation and emission reduction are realized.

Description

Automobile shank protection bracket, automobile front end flow guide system and automobile

Technical Field

The utility model relates to an automotive filed especially relates to a car shank protective cradle, car front end water conservancy diversion system and car.

Background

At present, the protection of pedestrian's shank in the car pedestrian protection field mainly reaches the purpose of protecting the pedestrian through the mode that increases energy-absorbing structure behind the car front bumper dustcoat, increases car shank protective cradle behind the crashproof board in the front of the car promptly can effectively reduce the mode to pedestrian's shank injury value.

The front end of the automobile shank protective support extends to the rear end of the front bumper outer cover, the rear end of the automobile shank protective support is fixed below the front end module, a condenser, a radiator, an intercooler and other heat dissipation modules are installed in the middle area of the front end module, in order to guarantee the heat dissipation effect, a lower air inlet grille is required to be arranged right at the middle area of the front end module on the upper portion of the automobile front bumper outer cover, in the automobile driving process, airflow on the upper portion of the automobile front bumper outer cover enters from the lower air inlet grille, and enters the heat dissipation module in the middle area of the front end module through the upper end face of the automobile shank protective support, and heat exchange is achieved. On the other hand, in the driving process of the automobile, the lower airflow of the automobile front bumper outer cover firstly passes through the lower end face of the automobile front bumper outer cover, then flows through the lower end face of the automobile shank protective bracket, and finally flows to the tail of the automobile.

However, in the automobile shank protective bracket in the prior art, the demolding direction is perpendicular to the upper end face and the lower end face, so that one reinforcing rib perpendicular to the airflow direction is inevitably arranged on the upper end face or the lower end face of the automobile shank protective bracket, the airflow is blocked, the resistance of a front engine room is increased, and the oil consumption is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aiming at the technical problems that the demoulding direction of the existing automobile shank protecting bracket is vertical to the upper end surface and the lower end surface of the automobile shank protecting bracket, so that one surface of the upper end surface or the lower end surface of the automobile shank protecting bracket is inevitably provided with a reinforcing rib vertical to the airflow flowing direction, the resistance of a front engine room is increased, and the oil consumption is increased, the automobile shank protecting bracket is provided; another two objects of the present invention are to provide a front end diversion system for a vehicle and a vehicle.

In order to achieve the purpose, the utility model provides a car shank protective cradle, including relative interval arrangement's last guide plate and lower guide plate from top to bottom, go up the rear end of guide plate with the rear end of guide plate is connected with the back connecting plate down, the back connecting plate with the laminating of front end module is fixed, go up the guide plate with be provided with the strengthening rib structure that the fore-and-aft direction extends down between the guide plate, the front end of strengthening rib structure extend to front bumper rear end and with front bumper dustcoat front and back relative interval arrangement.

According to the preferable scheme, the left side of the upper guide plate and the left side of the lower guide plate are connected with a left connecting plate, the right side of the upper guide plate and the right side of the lower guide plate are connected with a right connecting plate, and the rear ends of the reinforcing rib structures are inserted and fixed in a cavity defined by the upper guide plate, the lower guide plate, the left connecting plate, the right connecting plate and the rear connecting plate.

Preferably, the reinforcing rib structure includes a plurality of plate-shaped reinforcing plates arranged in a row, each of the reinforcing plates is disposed to be inclined with respect to the upper baffle, each of the reinforcing plates is disposed to be inclined with respect to the lower baffle, and the inclination angles of the adjacent reinforcing plates are opposite to each other.

Preferably, the upper baffle and the lower baffle are both arranged in an upward inclined manner.

As a preferred scheme, the included angle between the demoulding direction of the automobile shank protecting bracket and the horizontal plane is 2-5 degrees larger than the included angle between the lower end of the front bumper outer cover and the horizontal plane.

Preferably, the rear connecting plate is provided with a plurality of fixing plates for connecting the front end module;

the lower guide plate is provided with a plurality of upward convex protrusions extending in the front-rear direction, the protrusions correspond to the fixed plates one to one, and avoidance grooves used for connecting the fixed plates and the front end modules are formed in the lower spaces of the protrusions.

Preferably, the thickness of the fixing plate is larger than that of the rear connecting plate;

the width of the fixed plate is larger than that of the avoidance groove, and the lower end of the fixed plate extends downwards to the lower part of the lower guide plate.

The front end flow guide system of the automobile comprises a front bumper outer cover, a front end module and the automobile shank protection bracket, wherein the section of the front bumper outer cover is in a forward convex arc shape; the front end of the reinforcing rib structure is in an arc shape matched with the front bumper outer cover; the end part of the front bumper cover extending obliquely backwards and downwards is positioned at the lower part of the lower deflector.

Preferably, the lower end of the front end module is lower than the lower end of the rear connecting plate, and the distance between the lower end of the front end module and the lower end of the rear connecting plate is greater than 5 mm.

An automobile comprises the automobile front end flow guide system.

Compared with the prior art, the beneficial effects of the utility model reside in that:

automobile shank protective cradle drawing of patterns direction towards the place ahead, the strengthening rib is in the guide plate and down between the guide plate, the air current of bumper dustcoat upper portion gets into by lower part air inlet grille before the car, gets into the heat dissipation module of front end module middle zone behind the guide plate on the automobile shank protective cradle, realizes the heat exchange. The lower airflow of the automobile front bumper outer cover firstly passes through the lower end face of the automobile front bumper outer cover, then flows through the lower guide plate of the automobile shank protective bracket and finally flows to the tail of the automobile.

This car shank protective cradle's last guide plate carries out the water conservancy diversion to car front bumper dustcoat upper end air current, this car shank protective cradle's lower guide plate carries out the water conservancy diversion to car front bumper dustcoat lower extreme air current, car shank protective cradle for prior art reduced the windage, realize energy saving and emission reduction.

Furthermore, the utility model discloses car shank protective cradle strengthening rib structure's front end extends to front bumper rear end and with front bumper dustcoat front and back relative interval arrangement, the interval has guaranteed not to produce between strengthening rib structure front end and the front bumper dustcoat and has interfered, when pressing the front bumper dustcoat with the hand moreover, strengthening rib structure front end has improved the rigidity of front bumper dustcoat as supporting. When the front bumper outer cover collides with the lower leg and receives backward impact force, the impact energy is transmitted to the reinforcing rib structure front end through the front bumper outer cover, and the reinforcing rib structure front end collapses and absorbs energy, so that the impact force of the front protective cover of the automobile to the lower leg in the moment of collision is reduced, and the injury to the human body is reduced.

In addition, the rear connecting plate of the automobile shank protecting support is fixedly attached to the front end module, the lower end of the front end module is lower than the lower end of the rear connecting plate, and the distance between the lower end of the front end module and the lower end of the rear connecting plate is larger than 5 mm. The lower end of the front-end module forms an air dam for blocking airflow, so that excessive airflow at the bottom of the vehicle can be avoided, the flow and the turbulent flow of the airflow at the bottom of the vehicle are effectively reduced, the aerodynamic performance is improved, and energy conservation and emission reduction are further realized.

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings and the main components of the embodiments are given.

Drawings

FIG. 1 is a schematic structural view of an automobile lower leg protection bracket according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the automobile lower leg protection bracket taken along section A-A of FIG. 1;

FIG. 3 is an exploded view of a front end diversion system composed of an automobile lower leg protection bracket, a front bumper cover and a front end module;

FIG. 4 is a front view of a front end diversion system formed by the automobile lower leg protection bracket, the front bumper cover and the front end module;

FIG. 5 is a bottom view of FIG. 4;

FIG. 6 is a top view of FIG. 4;

FIG. 7 is a schematic view of the structure of the fixing part of the automobile lower leg protection bracket;

FIG. 8 is a schematic structural view of a fixing part of the front end module and the automobile lower leg protection bracket;

in the figure, 1, a protective bracket for the lower leg of an automobile; 11. an upper deflector; 12. a lower deflector; 121. a lower deflector plane section; 122. a lower deflector ledge; 13. a left connecting plate; 14. a rear connecting plate; 15. a reinforcing plate; 151. a first reinforcing plate 151; 152. a second reinforcing plate 152; 16. a fixing plate; 17. a fixing hole; 18. a right connecting plate; 19. riveting the head avoidance hole of the nut; 2. a front end module; 21. the lower end of the front end module is provided with an air dam area; 3. a front bumper cover; 31. the front bumper is covered with an upper end plate; 32. a lower end plate of the front bumper outer cover; 33. the front bumper is covered by a front end plate; 4. a bolt; 5. a threaded hole; 51. riveting the head of the nut; 52. riveting a screw thread part of the nut; 6. a gasket.

Detailed Description

The following describes the present invention in further detail with reference to fig. 1 to 8 and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The utility model discloses a preferred embodiment of car shank protective cradle, the utility model discloses a car shank protective cradle includes relative interval arrangement's from top to bottom last guide plate 11 and lower guide plate 12, go up guide plate 11 the rear end with guide plate 12's rear end is connected with back connecting plate 14 down, back connecting plate 14 with front end module 2 laminating is fixed, go up guide plate 11 with be provided with the strengthening rib structure that the fore-and-aft direction extends down between the guide plate 12, strengthening rib structure's front end extend to 3 rear ends of front bumper dustcoat and with 3 preceding back relative interval arrangements of front bumper dustcoat, the interval is 3mm ~ 5 mm.

The rib structure extends forward, and the direction of removal of the automobile lower leg shield 1 also faces forward. The upper end of the automobile front bumper outer cover 3 is connected with the lower air inlet grille, the airflow on the upper part of the automobile front bumper outer cover 3 firstly enters the interior of an automobile through the lower air inlet grille, then enters the heat dissipation module in the middle area of the front end module 2 through the upper flow guide plate 11 of the automobile shank protection bracket, and the heat exchange is realized. The lower air flow of the automobile front bumper outer cover 3 firstly passes through the lower end face of the automobile front bumper outer cover, then flows through the lower guide plate 12 and finally flows to the tail of the automobile. The upper guide plate 11 guides the airflow on the upper side of the automobile front bumper outer cover, and the lower guide plate 12 guides the airflow on the lower side of the automobile front bumper outer cover 3, so that the wind resistance is reduced, and the energy conservation and emission reduction are realized.

The front end of the reinforcing rib structure and the rear end of the front bumper outer cover 3 are arranged at intervals, and the interval is 3-5 mm. The 3 mm-5 mm interval ensures that the front end of the reinforcing rib structure does not interfere with the front bumper outer cover 3, and when the front bumper outer cover is pressed by hands, the front end of the reinforcing rib structure serves as a support, so that the rigidity of the front bumper outer cover 3 is improved. When current bumper dustcoat 3 collides with the shank, receives the impact of backward, the impact energy transmits strengthening rib structure front end through front bumper dustcoat 3, and the energy-absorbing is crumpled to strengthening rib structure front end to alleviate collision car front protective cover 3 in the twinkling of an eye to the impact force of shank, reduce the injury to the human body.

In this embodiment, go up guide plate 11 left side with guide plate 12 left side is connected with left connecting plate 13 down, go up guide plate 11 right side with guide plate 12 right side is connected with right connecting plate 18 down, the rear end of strengthening rib structure is pegged graft and is fixed in the cavity that last guide plate 11, lower guide plate 12, left connecting plate 13, right connecting plate 18 and back connecting plate 14 enclose, the front end of strengthening rib structure extend to 3 rear ends of front bumper dustcoat and with front bumper dustcoat 3 front and back relative arrangement.

The reinforcing rib structure rear end is located the cavity, has guaranteed reinforcing rib structure's fixed strength, reinforcing rib structure front end extends to front bumper dustcoat rear end, and as the energy-absorbing structure that contracts bursts, the impact force of car front shroud 3 to the shank in the twinkling of an eye of alleviating the collision. In addition, the reinforcing ribs extend forwards, and are wrapped by a cavity formed by surrounding the upper guide plate 11, the lower guide plate 12, the left connecting plate 13, the right connecting plate 18 and the rear connecting plate 14, so that the total weight of the automobile shank protecting support 1 is reduced, the light-weight design requirement of an automobile is met, and energy conservation and emission reduction are further achieved.

Further, the reinforcing rib structure comprises a plurality of plate-shaped reinforcing plates 15 arranged in a row, each reinforcing plate 15 and the upper air deflector 11, each reinforcing plate 15 and the lower air deflector 12 are arranged in an inclined manner, and the inclination angles of the adjacent reinforcing plates 15 are opposite.

As shown in fig. 1, the stiffening plates 15 are arranged in pairs, each pair comprising a first stiffening plate 151 and a second stiffening plate 152, the first stiffening plate 151 being deflected upwards by about 60 ° counter-clockwise with respect to the lower baffle 12, and the second stiffening plate 152 being deflected upwards by about 120 ° counter-clockwise with respect to the lower baffle 12. The number of the reinforcing plates 15 is set to be appropriate according to the length of the automobile lower leg protection bracket 1 in the left-right direction and the strength requirement of the automobile lower leg protection bracket 1. The inclination angles of the adjacent reinforcing plates 15 are opposite, the overall strength of the automobile shank protective support 1 is increased, the structural strength of the automobile shank protective support 1 is enhanced in multiple directions, the reinforcing plates 15 are arranged in the cavity, the weight of a vehicle can be reduced, and the lightweight design of the automobile is further realized. In addition, the strength of the energy absorbing structure can be flexibly adjusted by adjusting the number of the reinforcing plates 15, the shape of the reinforcing plates 15 and the extension length of the reinforcing plates 15 according to the circumstances;

in the embodiment of the present application, both upper baffle 11 and lower baffle 12 are disposed in an upward-inclined manner, and as shown in fig. 5 and 6, front bumper cover 3 is provided with upper end plate 31, front end plate 33, and lower end plate 32, and the upward-inclined arrangement of the lower baffles facilitates smooth transition of the air flow from front bumper cover lower end plate 32 to lower baffle 12. The included angle between the demoulding direction of the automobile shank protecting support and the horizontal plane is 2-5 degrees larger than the included angle between the lower end of the front bumper outer cover and the horizontal plane, the arrangement is favorable for demoulding, and the front end of the demoulding rear reinforcing plate 15 can be ensured to be matched with the front bumper outer cover.

The rear connecting plate 14 has a plurality of fixing plates 16 for connecting the front module 2, the lower baffle 12 has a plurality of upwardly protruding convex portions 122 extending in the front-rear direction and flat portions 121, the convex portions 122 and the flat portions 121 are integrally connected, the convex portions 122 correspond to the fixing plates 16 one by one, and the space below the convex portions 122 forms an escape groove for connecting the fixing plates 16 and the front module 2. The rear end face of the fixing plate 16 is coplanar with the rear end face of the rear connecting plate 14, and a fixing hole 17 is formed in the position, corresponding to the front-end module fixing threaded hole 5, of the fixing plate 16. The central axis of the boss 122 coincides with the central axis of the fixing hole 17, thereby providing a working space for mounting and dismounting the fastener. During assembly, the bolt 4 penetrates through the fixing hole 17 and is screwed into the threaded hole 5 to fixedly connect the automobile lower leg protection bracket with the front end module.

In this embodiment, the thickness of the fixing plate 16 is greater than that of the rear connecting plate 14, the width of the fixing plate 16 is greater than that of the avoidance groove, and the lower end of the fixing plate 16 extends downward to the lower portion of the lower deflector 12. The fixed plate 16 is thickened and widened, so that the strength of the fixed plate 16 can be higher, the connection strength between the automobile shank protective support and the front end module is increased, the design mode of locally reinforcing the connection and fixing part of the automobile shank protective support can guarantee the connection and fixing strength between the automobile shank protective support and the front end module, meanwhile, the lightweight design of an automobile is considered, and energy conservation and emission reduction are further realized.

An automobile front end flow guide system comprises a front bumper outer cover 3, a front end module 2 and the automobile shank protection bracket 1, wherein the section of the front bumper outer cover 3 is in a forward convex arc shape; the front end of the reinforcing rib structure is in an arc shape matched with the front bumper outer cover 3; the end of the front bumper cover 3 extending obliquely rearward and downward is located at the lower portion of the lower deflector.

Specifically, as shown in fig. 6, after assembly, an overlapping area of more than 10mm is formed between the front bumper outer cover upper end plate 31 and the automobile lower leg protection support upper deflector 11, and due to the existence of the overlapping area, air flow smoothly transits from the front bumper outer cover upper end surface to the upper deflector 11, and the upper deflector 11 upper end surface is a plane, so that air flow resistance can be reduced, and energy conservation and emission reduction can be achieved. As shown in fig. 5, after assembly, an overlapping area of more than 10mm is formed between the lower end plate 32 of the front bumper outer cover and the lower deflector 12 of the automobile lower leg protective bracket, and due to the existence of the overlapping area, air flow smoothly transits from the lower end plate 32 of the front bumper outer cover to the lower deflector 12, and the lower end surface of the lower deflector 12 is a plane, so that air flow resistance can be reduced, and energy conservation and emission reduction can be achieved.

In this embodiment, the lower end of the front module 2 is lower than the lower end of the rear connecting plate 14, and the distance between the lower end of the front module and the lower end of the rear connecting plate is greater than 5 mm. Specifically, as shown in fig. 4, after the automobile lower leg protection bracket 1 is fixedly connected with the front end module, a downward protruding area 21 is formed between the lower end surface of the rear connecting plate 14 and the lower end surface of the front end module, and the downward protruding area 21 can play a role of an air dam in the running process of an automobile, so that the flow and the turbulent flow of the airflow at the bottom of the automobile are reduced, the aerodynamic performance is improved, and the energy conservation and emission reduction are further realized.

The automobile shank protection bracket 1 and the front end module 2 can be connected through a bolt and a riveting mode, in the embodiment, the front end module 2 and the automobile shank protection bracket 1 are connected through a mode of installing the rivet nut 5 on the front end module 2, specifically, as shown in fig. 8, the rivet nut 5 is installed on the front end module, the rivet nut 5 is provided with a head 52 and a thread part 51, in order to ensure tight contact between the rear connecting plate 14 and the front end module 2, the fixing plate 16 is provided with a rivet nut head avoiding hole 19, as shown in fig. 7, the axle center of the rivet nut head avoiding hole 19 is coaxially arranged with the axle center of the front end module fixing thread hole 5, the diameter of the rivet nut head avoiding hole 19 is larger than the diameter of the rivet nut head 52, and the depth of the rivet nut head avoiding hole 19 is larger than the thickness of the rivet nut head.

Wherein, in order to increase the connection strength between the automobile shank protective bracket 1 and the front end module 2, a gasket 6 is arranged between the bolt 4 and the fixing plate 16, and the diameter of the gasket 6 is larger than that of the head of the rivet nut.

An embodiment of an automobile comprises the automobile front end flow guiding system.

To sum up, the embodiment of the present invention provides an automobile shank protective bracket 1, an automobile front end diversion system and an automobile, wherein an upper diversion plate 11 of the automobile shank protective bracket 1 diverts the air flow at the upper end of an automobile front bumper cover 3, a lower diversion plate 12 of the automobile shank protective bracket 1 diverts the air flow at the lower end of the automobile front bumper cover 3, the front end of the automobile shank protective bracket strengthening rib structure extends to the rear end of the front bumper cover 3 and is arranged at a relative interval with the front and rear ends of the front bumper cover 3, the interval is 3mm to 5mm, the impact force of the automobile front bumper cover 3 on the shank at the moment of collision can be reduced, the injury to the human body can be reduced, in addition, after the automobile shank protective bracket 1 and a front end module 2 are installed, a protruding area 21 is formed at the lower part of the front end module 2, the protruding area 21 plays the role of an air dam, the flow and the turbulent flow of the air flow at the bottom of the automobile can be reduced, improves the aerodynamic performance and realizes energy conservation and emission reduction.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an automobile shank protective cradle, its characterized in that, includes relative interval arrangement's last guide plate and lower guide plate from top to bottom, the rear end of going up the guide plate with the rear end of guide plate is connected with the back connecting plate down, the back connecting plate is fixed with the front end module laminating, go up the guide plate with be provided with the strengthening rib structure that the fore-and-aft direction extends down between the guide plate, the front end of strengthening rib structure extend to front bumper dustcoat rear end and with front bumper dustcoat relative interval arrangement from front to back.

2. The automobile lower leg protection bracket as claimed in claim 1, wherein a left connecting plate is connected to the left side of the upper deflector and the left side of the lower deflector, a right connecting plate is connected to the right side of the upper deflector and the right side of the lower deflector, and the rear ends of the reinforcing rib structures are inserted and fixed in a cavity defined by the upper deflector, the lower deflector, the left connecting plate, the right connecting plate and the rear connecting plate.

3. The lower leg protection brace of claim 2, wherein the stiffener structure includes a plurality of plate-shaped stiffeners arranged in a row, each stiffener is disposed at an angle to the upper deflector, each stiffener is disposed at an angle to the lower deflector, and the angles of inclination of adjacent stiffeners are opposite.

4. The lower leg protection brace of claim 1, wherein the upper deflector and the lower deflector are each disposed in an upwardly inclined arrangement.

5. The automobile lower leg protection bracket as claimed in claim 4, wherein an angle between a demolding direction of the automobile lower leg protection bracket and a horizontal plane is 2 ° to 5 ° larger than an angle between a lower end of the front bumper cover and the horizontal plane.

6. The lower leg protection brace of claim 1, wherein the rear attachment plate has a plurality of attachment plates for attaching a front end module;

7. The automotive lower leg protection brace of claim 6, wherein the thickness of the fixed plate is greater than the thickness of the rear connecting plate;

8. An automobile front end flow guide system is characterized by comprising a front bumper outer cover, a front end module and the automobile shank protection bracket as claimed in any one of claims 1 to 7, wherein the cross section of the front bumper outer cover is in a forward convex arc shape; the front end of the reinforcing rib structure is in an arc shape matched with the front bumper outer cover; the end part of the front bumper cover extending obliquely backwards and downwards is positioned at the lower part of the lower deflector.

9. The front end diversion system of claim 8, wherein a lower end of said front end module is lower than a lower end of said rear connector plate, and a distance between said lower end of said front end module and said lower end of said rear connector plate is greater than 5 mm.

10. An automobile characterized by comprising the automobile front end diversion system of any one of claims 8 to 9.