Vehicle body front end structure and vehicle

Abstract

The application provides a vehicle body front end structure and a vehicle. The vehicle body front end structure comprises a reinforcing support arranged on a front bumper, the reinforcing support comprises a main body part and an extension part arranged at the bottom of the main body part; the main body part is connected with a bumper body of the front bumper, the bumper body has a mounting area for mounting a license plate, the extension part extends downward along the up-down direction of the whole vehicle, and a connecting part is arranged on the extension part, the connecting part is located at the rear side of the mounting area and is connected with a lower grille of the front bumper. The vehicle body front end structure has the extension part arranged on the main body part and connected with the lower grille, which is beneficial to improving the strength of the vehicle body front end in the up-down direction of the whole vehicle and the continuity of force transmission, and the fastening stress point when the connecting part is connected with the lower grille is located in a non-visual area, which is beneficial to solving the problem of visual light shadow disorder of the front bumper caused by force pulling and improving the appearance of the front part of the whole vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle component technology, and in particular to a front-end structure for a vehicle body. Furthermore, this invention also relates to a vehicle equipped with this front-end structure. Background Technology

[0002] The front-end structure of a vehicle typically includes the front bumper, front bumper reinforcement bracket, and front anti-collision beam. The front bumper reinforcement bracket, located on the upper side of the inner surface of the front bumper, primarily functions to connect the front bumper to the front frame and front anti-collision beam, provide support for the upper part of the front bumper assembly, and enhance the connection strength between the front bumper and the vehicle body to meet the overall front-end DTS (Design Requirements for Gaps and Surface Differences between Interior and Exterior Components of the Vehicle).

[0003] However, existing front bumper reinforcement brackets, due to their inherent structural limitations, tend to result in weak vertical strength at the front of the vehicle and poor continuity of force transmission. Furthermore, after being connected to the front bumper, the reinforcement bracket can easily cause uneven light and shadow patterns on the front bumper's exterior, thus affecting the overall appearance of the vehicle. Summary of the Invention

[0004] In view of this, the present invention aims to provide a front-end structure for the vehicle body to improve the strength of the front end of the vehicle body in the vertical direction and the overall appearance of the front of the vehicle.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A front end structure of a vehicle body includes a reinforcing bracket mounted on a front bumper, the reinforcing bracket extending along the left-right direction of the vehicle and including a main body portion and an extension portion located at the bottom of the main body portion;

[0007] The main body is connected to the bumper body of the front bumper, the bumper body has an installation area for mounting the license plate, the extension extends downward along the vertical direction of the whole vehicle, and the extension is provided with a connecting part, the connecting part is located on the rear side of the installation area and is connected to the lower grille of the front bumper.

[0008] Furthermore, along the front-rear direction of the vehicle, the main body is provided with a rearwardly protruding connecting seat;

[0009] The connecting seat includes a seat body connected to the main body and a connecting body connected to the front end frame. The seat body is provided with a collapsible structure, which is used to guide the connecting seat to collapse along the front-rear direction of the vehicle.

[0010] Furthermore, the seat body is hollow inside;

[0011] The crumple structure includes a crumple hole on the seat body, the crumple hole extending along the front-rear direction of the vehicle, and / or, the crumple structure includes multiple stepped portions on the seat body, the multiple stepped portions gradually approaching the center of the seat body, and the multiple stepped portions are arranged sequentially along the front-rear direction of the vehicle.

[0012] Furthermore, there are multiple connecting seats provided on the main body, and the front end frame is provided with a mounting bracket;

[0013] One part of the connecting seat is connected to the mounting bracket in the vertical direction of the vehicle. The mounting bracket is provided with a limiting part, which abuts against another part of the connecting seat and restricts the displacement of the connecting seat in the vertical direction of the vehicle.

[0014] Furthermore, the extended portion is provided with a limiting rib, which protrudes forward along the longitudinal direction of the vehicle and abuts against the front bumper; and / or,

[0015] The extension includes multiple longitudinal beams extending downward along the vertical direction of the vehicle, and crossbeams located at the bottom of the multiple longitudinal beams.

[0016] Furthermore, the extension includes two separate parts arranged opposite each other in the left-right direction of the vehicle, with an installation space formed between the two parts for mounting a radar mounting bracket; or,

[0017] The extension extends along the left-right direction of the vehicle, and a radar mounting section is provided in the middle of the extension.

[0018] Furthermore, the top of the bumper body has a rearward-folding flange;

[0019] The main body and the flange are connected in the front-rear direction of the vehicle, and / or the bumper body is provided with a decorative strip that covers the flange.

[0020] Furthermore, the main body is provided with a support rib, which supports the bottom of the flange.

[0021] Furthermore, it also includes a front bumper beam located behind the lower grille;

[0022] The lower grille is provided with a snap-fit ​​plate, the front anti-collision beam is provided with a connecting plate, and a snap-fit ​​arm extending upward toward the connecting plate;

[0023] The snap-fit ​​plate is inserted between the connecting plate and the snap-fit ​​arm, and the snap-fit ​​plate has a snap-fit ​​hole, while the snap-fit ​​arm has a snap-fit ​​protrusion that snaps into the snap-fit ​​hole.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] The front-end structure of the vehicle body described in this invention, by including a main body and an extension portion extending along the vertical direction of the vehicle, with the main body connected to the bumper body and the connecting portion on the extension portion connected to the lower grille, improves the strength and continuity of force transmission of the front end of the vehicle in the vertical direction. Furthermore, by positioning the connecting portion at the rear of the mounting area, the fastening stress point when connecting the connecting portion to the lower grille is located in a non-appearance area, which helps solve problems such as uneven light and shadow caused by the front bumper being stretched, thus improving the overall appearance of the front of the vehicle.

[0026] Furthermore, by incorporating a crumple zone on the seat body, and ensuring that this crumple zone guides the connecting seat to collapse in the longitudinal direction of the vehicle, the vehicle's front section can maintain its vertical load-bearing capacity while simultaneously enhancing pedestrian protection during a collision. Moreover, by including crumple holes in the crumple zone, the structure is simple, facilitating seat collapse and reducing the weight of the reinforcing bracket. The addition of a stepped section helps the seat body fracture at the stepped portion during a collision, providing better energy absorption and pedestrian protection.

[0027] Furthermore, multiple connecting seats are located on the main body. Some connecting seats connect to the mounting bracket in the vertical direction of the vehicle, which helps to limit the displacement of the reinforcing bracket in the front-rear and lateral directions of the vehicle. Other mounting seats abut against the limiting part, which helps to limit the displacement of the reinforcing bracket in the vertical direction of the vehicle. Additionally, by providing forward-protruding limiting ribs that abut against the front bumper, problems such as bumper loosening under pressure and abnormal noises are prevented. Moreover, the extension part includes multiple longitudinal and transverse beams, resulting in a simple structure and lighter weight while improving the transmission of support force.

[0028] Secondly, by including two relatively arranged parts in the extension section and forming an installation space between the two parts for installing the radar mounting bracket, the radar can be moved from the traditional lower grille area to the front bumper body, and the radar mounting bracket can be integrated into the reinforcing bracket, thus achieving a concealed radar arrangement while meeting the styling requirements.

[0029] Furthermore, the flanged design on the bumper body enhances its structural strength and facilitates connection with the reinforcing bracket. The decorative strip further conceals the connection between the bumper body and the reinforcing bracket, improving the front bumper's aesthetics. Additionally, the inclusion of support ribs ensures a strong connection between the reinforcing bracket and the bumper body. These ribs, resting on the bottom of the flange, enhance the reinforcing bracket's support for the bumper body, preventing vertical movement of the bumper.

[0030] By engaging the lower grille with the front bumper beam, the front bumper beam can support the front bumper and provide structural support. When the front of the vehicle is involved in a collision, the engaging protrusion can break, resulting in crumpling and weakening along the front-rear direction of the vehicle, thereby absorbing energy and improving pedestrian protection.

[0031] Another object of the present invention is to provide a vehicle having a front body structure as described above.

[0032] The vehicle described in this invention has the same technical effects as the aforementioned front-end structure of the vehicle body compared to the prior art, and will not be described in detail here. Attached Figure Description

[0033] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0034] Figure 1 This is a schematic diagram of the front end structure of the vehicle body according to an embodiment of the present invention;

[0035] Figure 2 This is a partial structural diagram of the vehicle front end structure described in an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the reinforcing bracket from one perspective of an embodiment of the present invention;

[0037] Figure 4 for Figure 3 Enlarged view of section A;

[0038] Figure 5 This is a front view of the reinforcing bracket described in an embodiment of the present invention;

[0039] Figure 6 for Figure 5 Cross-sectional view in the BB direction;

[0040] Figure 7 This is a schematic diagram of the connection structure of the mounting bracket and reinforcing bracket according to an embodiment of the present invention;

[0041] Figure 8 for Figure 7 Enlarged view of section C;

[0042] Figure 9 This is a schematic diagram of the structure of the reinforcing bracket and bumper body according to an embodiment of the present invention;

[0043] Figure 10 for Figure 9 Enlarged view of section D;

[0044] Figure 11 This is a partial structural diagram of the reinforcing bracket described in an embodiment of the present invention;

[0045] Figure 12 This is a schematic diagram of the structure of the bumper body according to an embodiment of the present invention;

[0046] Figure 13 This is a schematic diagram of the bumper body and decorative strip according to an embodiment of the present invention;

[0047] Figure 14 This is a schematic diagram of the connection structure between the front bumper and the front anti-collision beam according to an embodiment of the present invention;

[0048] Figure 15 for Figure 14 Enlarged view of section E in the middle.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Reinforcing bracket; 101. Main body; 102. Extension; 1021. Separate parts; 2. Bumper body; 201. Mounting area; 3. Lower grille; 301. Grille body; 302. Protrusion; 3021. Second protrusion; 4. First bolt; 5. Second bolt;

[0051] 6. First connecting seat; 601. First seat body; 602. First connecting body; 7. Second connecting seat; 701. Second seat body; 702. Second connecting body; 7021. First snap-fit ​​hole; 8. Collapse hole; 9. Stepped portion; 10. First part; 11. Second part; 12. Reinforcing rib;

[0052] 13. Mounting bracket; 14. Mounting plate; 15. Grille plate; 16. Limiting part; 1601. Upper limit plate; 1602. Lower limit plate; 17. Limiting rib; 18. Connecting part; 19. Installation space; 20. Radar mounting bracket; 21. First flange; 22. Weight reduction hole;

[0053] 23. Decorative strip; 24. Second flange; 25. Third flange; 2501. First plate; 2502. Second plate; 26. Third bolt; 27. Limiting post; 28. Limiting hole; 29. ​​Snap-fit ​​arm; 2901. Second snap-fit ​​protrusion; 30. Support rib; 31. Snap-fit ​​plate; 3101. Second snap-fit ​​hole; 32. Front bumper beam; 33. Connecting plate. Detailed Implementation

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0055] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0057] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0058] Example 1

[0059] This embodiment describes a front-end structure of a vehicle body. In terms of overall composition, as follows... Figure 1 and Figure 2 As shown, the front-end structure of the vehicle body includes a reinforcing bracket 1 mounted on the front bumper. The reinforcing bracket 1 extends along the left-right direction of the vehicle and includes a main body 101 and an extension 102 located at the bottom of the main body 101. The main body 101 is connected to the bumper body 2 of the front bumper, which has a mounting area 201 for mounting a license plate. The extension 102 extends downward along the vertical direction of the vehicle and has a connecting part 18 located behind the mounting area 201 and connected to the lower grille 3 of the front bumper.

[0060] The front-end structure of this embodiment, by including a main body 101 and an extension 102 extending along the vertical direction of the vehicle in the reinforcing bracket 1, and connecting the main body 101 to the bumper body 2, and connecting the connecting part 18 on the extension 102 to the lower grille 3, improves the strength and continuity of force transmission of the front end of the vehicle in the vertical direction. Furthermore, by positioning the connecting part 18 at the rear of the mounting area 201, the fastening force point when connecting the connecting part 18 to the lower grille 3 is located in a non-appearance area, which helps solve problems such as uneven light and shadow caused by the front bumper being stretched, thus improving the overall appearance of the front of the vehicle.

[0061] Based on the above overall introduction, as a preferred implementation method, such as Figure 2 and Figure 3 As shown, in this embodiment, the connecting portion 18 is located at the bottom of the extension portion 102, specifically as a first protrusion protruding rearward along the longitudinal direction of the vehicle, to improve the structural strength of the extension portion 102 and also to improve the connection strength between the extension portion 102 and the lower grille 3. The position where the lower grille 3 connects to the connecting portion 18 extends between the connecting portion 18 and the front bumper body 2, so as to facilitate the connection between the reinforcing bracket 1 and the lower grille 3 in the longitudinal direction of the vehicle.

[0062] Furthermore, the connecting part 18 and the lower grille 3 can be connected by means of bolts or other methods. Preferably, in this embodiment, the connecting part 18 and the lower grille 3 are connected by first bolts 4. The connecting part 18 is provided with two connecting holes spaced apart along the left-right direction of the vehicle, and the lower grille 3 is provided with bolt holes corresponding to the two connecting holes. The two first bolts 4 pass through the two connecting holes and are connected to the corresponding bolt holes on the lower grille 3. The connection operation is simple and the cost is low.

[0063] The lower grille 3 can also be connected to the front bumper body 2 using bolts, such as... Figure 1 As shown, the lower grille 3 and the bumper body 2 can be connected by the second bolt 5. Furthermore, the connection position between the lower grille 3 and the bumper body 2 can be set at the installation area 201, so that the fastening force point when the lower grille 3 and the bumper body 2 are connected is also located in a non-appearance area, which helps to further improve the appearance of the front of the vehicle and facilitates the achievement of DTS (Design for Transformation) of the front appearance of the vehicle.

[0064] Furthermore, by positioning the connecting part 18 at the rear of the mounting area 201 and setting the connection point between the lower grille 3 and the bumper body 2 at the mounting area 201, problems such as uneven light and shadow caused by the front bumper being stretched can be solved, even with a thinner wall thickness for the bumper body 2. This facilitates cost reduction and weight reduction for the front bumper. In actual production, by adopting the above method, the wall thickness of the bumper body 2 can be as thin as 2.5mm. Moreover, during actual assembly, after the lower grille 3 and bumper body 2 are assembled, the reinforcing bracket 1 can be connected to both the bumper body 2 and the lower grille 3, facilitating precise positioning of the reinforcing bracket 1.

[0065] As a preferred implementation method, such as Figure 2As shown in the diagram, in this embodiment, a rearwardly protruding connecting seat is provided on the main body 101 along the longitudinal direction of the vehicle. The connecting seat includes a seat body connected to the main body 101 and a connecting body connected to the front end frame. The seat body is provided with a collapsible structure, which guides the connecting seat to collapse along the longitudinal direction of the vehicle. It should be noted that the aforementioned front end frame can be a structure commonly found in existing vehicles, and will not be described in detail here. Furthermore, by providing a collapsible structure on the seat body and enabling the collapsible structure to guide the connecting seat to collapse in the longitudinal direction of the vehicle, the load-bearing capacity of the front of the vehicle in the vertical direction can be guaranteed, while improving the protection of pedestrians in the event of a collision.

[0066] In specific implementation, as a preferred option, such as Figure 4 and Figure 5 and Figure 6 As shown, the seat body is hollow inside. The crumple zone includes a crumple hole 8 on the seat body, which extends along the front-rear direction of the vehicle. The crumple zone also includes multiple stepped sections 9 on the seat body, which gradually move towards the center of the seat body and are arranged sequentially rearward along the front-rear direction of the vehicle. By including the crumple hole 8, the crumple zone is simple in structure, facilitates seat collapse, and reduces the weight of the reinforcing bracket 1. The stepped sections 9 help the seat body break at the stepped sections 9 during a collision, providing better energy absorption and pedestrian protection.

[0067] like Figure 6 As shown, the seat body has two stepped portions 9 arranged sequentially in the front-to-back direction. Of course, the number of stepped portions 9 is not limited to two; in other embodiments, the number of stepped portions 9 can also be three, four, five, or six, etc. Furthermore, the seat body includes a bottom wall and side walls. To facilitate the installation of the crumple zone 8, the side walls of the seat body have a first portion 10 and a second portion 11 arranged sequentially in the front-to-back direction of the vehicle, such as... Figure 11 As shown, the first part 10 is connected to the main body part 101, and the second part 11 is connected between the first part 10 and the sidewall, and the second parts 11 are a plurality of circumferentially spaced along the sidewall. Collapse holes 8 are formed between two adjacent second parts 11.

[0068] Furthermore, the front step portion 9 is located in the connection area between the first portion 10 and the second portion 11, while the rear step portion 9 is located on the second portion 11. In the event of a collision, the second portion 11 can break, thus absorbing energy. And, as... Figure 11As shown, a reinforcing rib 12 is provided on the second part 11, and the reinforcing rib 12 is connected to the first part 10 to improve the structural strength of the second part 11 and the connection strength between the second part 11 and the first part 10. It should be noted that in this embodiment, the collapse structure includes both the collapse hole 8 and the stepped part 9, which is only a preferred implementation. In addition, in other embodiments, the collapse structure may be selected to include only the collapse hole 8 or only the stepped part 9.

[0069] As a preferred implementation method, such as Figure 7 As shown in the diagram, in this embodiment, multiple connecting seats are provided on the main body 101, and a mounting bracket 13 is provided on the front end frame. A portion of the connecting seats are connected to the mounting bracket 13 in the vertical direction of the vehicle. The mounting bracket 13 is provided with a limiting part 16, which abuts against another portion of the connecting seats and restricts the displacement of the connecting seats in the vertical direction of the vehicle. For ease of description, the connecting seat connected to the mounting bracket 13 in the vertical direction of the vehicle is named the first connecting seat 6, and the connecting seat abutting against the limiting part 16 is named the second connecting seat 7. The first connecting seat 6 includes a first base 601 and a first connecting body 602, and the second connecting seat 7 includes a second base 701 and a second connecting body 702.

[0070] In specific implementation, the first base 601 and the second base 701 have the same structure, both being hollow and including a bottom wall and side walls. The first connecting body 602 and the second connecting body 702 are both plate-shaped structures, and the first connecting body 602 is provided with a connecting hole. The mounting bracket 13 is provided with a mounting plate 14 extending below the first connecting body 602, and the bolts pass through the connecting hole on the first connecting body 602 and are connected to the mounting plate 14, thereby facilitating the connection between the first connecting body 602 and the mounting bracket 13, and restricting the displacement of the reinforcing bracket 1 in the left-right direction and the front-back direction of the vehicle.

[0071] Furthermore, a forward-extending grille plate 15 can be provided on the mounting bracket 13. The grille plate 15 and the mounting plate 14 are spaced apart in the left-right direction of the vehicle, and the limiting part 16 is provided at the front end of the grille plate 15 and extends forward. As shown in the figure, the limiting part 16 can include an upper limiting plate 1601 and a lower limiting plate 1602 arranged vertically at intervals. The upper limiting plate 1601 abuts against the top of the second connecting body 702, and the lower limiting plate 1602 abuts against the bottom of the second connecting body 702, thereby facilitating the limitation of the displacement of the connecting seat in the vertical direction of the vehicle by the limiting part 16. Furthermore, as... Figure 3As shown, a first snap-fit ​​hole 7021 may be provided on the second connector 702, and a first snap-fit ​​protrusion that can extend into the first snap-fit ​​hole 7021 may be provided on the lower connecting plate 33, thereby preventing the reinforcing bracket 1 from falling off the mounting bracket. The structure of the first snap-fit ​​protrusion can be set with reference to the snap-fit ​​structures commonly used in the prior art, and will not be described in detail here.

[0072] In addition, such as Figure 8 As shown, the front end of the upper limit plate 1601 can be tilted upward and the front end of the lower limit plate 1602 can be tilted downward, thereby facilitating the insertion of the second connector 702 between the upper limit plate 1601 and the lower limit plate 1602. Furthermore, in this embodiment, a total of four connectors are provided, spaced apart along the left-right direction of the vehicle, including two first connectors 6 and two second connectors 7.

[0073] Of course, the provision of four connecting seats in this embodiment is merely a preferred implementation. In other embodiments, the number of connecting seats can be two, three, five, or six. It should also be noted that the remaining structures of the mounting bracket 13 in this embodiment can be designed with reference to the connection structure between the reinforcing bracket 1 and the front frame in the prior art, and will not be described in detail here.

[0074] In a preferred embodiment, a limiting rib 17 is provided on the extension portion 102. The limiting rib 17 protrudes forward along the longitudinal direction of the vehicle and abuts against the front bumper. The extension portion 102 includes multiple longitudinal beams extending downwards along the vertical direction of the vehicle, and crossbeams located at the bottom of the longitudinal beams. By providing the forward-protruding limiting rib 17 and ensuring its abutment against the front bumper, problems such as bumper loosening under pressure and abnormal noises are prevented. Furthermore, the extension portion 102, comprising multiple longitudinal and crossbeams, has a simple structure and is lightweight, while also improving the transmission of support force. The aforementioned connecting portion 18 is located on the crossbeam.

[0075] In specific implementation, the longitudinal beams can be arranged in two, three, four, or five intervals along the left-right direction of the vehicle, and the crossbeams, any two longitudinal beams, and the main body 101 can form a ring structure. Furthermore, preferably, limiting ribs 17 can be provided on both the longitudinal beams and the crossbeams. This not only improves the structural strength of the extension 102 but also increases the contact area with the bumper body 2, further preventing problems such as loosening of the bumper body 2 under pressure and abnormal noise.

[0076] Of course, in this embodiment, the provision of limiting ribs 17 on the extension portion 102 is only a preferred implementation. Furthermore, in other embodiments, it is also possible to omit the limiting ribs 17 on the extension portion 102. Moreover, the choice to include a crossbeam and multiple longitudinal beams in the extension portion 102 is also only a preferred implementation. Additionally, as... Figure 3 and Figure 9 As shown, the extension 102 can also optionally include two separate parts 1021 arranged opposite each other in the left-right direction of the vehicle, with an installation space 19 formed between the two parts 1021 for mounting the radar mounting bracket 20. In this case, the shape of each part 1021 can preferably be a right trapezoid to have better structural stability and improve the support for the bumper.

[0077] Furthermore, by forming an installation space 19 between the two split sections 1021 for mounting the radar mounting bracket 20, the radar can be moved from the traditional lower grille 3 area to the front bumper body 2, and the radar mounting bracket 20 can be integrated onto the reinforcing bracket 1, achieving a concealed radar arrangement while meeting aesthetic requirements. Weight-reducing holes 22 can be provided on both split sections 1021 to reduce the weight of the reinforcing bracket 1. Additionally, limiting ribs 17 can be provided on the sides of each split section 1021 surrounding the weight-reducing holes 22. Furthermore, a rearwardly folded first flange 21 can be provided on the periphery of each split section 1021 and near the weight-reducing holes 22 to enhance the structural strength of each split section 1021.

[0078] Alternatively, in this embodiment, the extension portion 102 can be made without including two separate parts 1021, and instead extend along the left-right direction of the entire vehicle, with a radar mounting portion located in the middle of the extension portion 102. In this case, the extension portion 102 can be in the shape of an isosceles trapezoid, providing better structural stability and enhancing support for the bumper. Furthermore, by providing a radar mounting portion in the middle of the extension portion 102, the requirement of concealed radar placement can be met. It should be noted that the radar mounting bracket 20 and the radar mounting portion described above can be designed with reference to existing radar mounting structures on vehicles, and will not be described in detail here.

[0079] As a preferred implementation method, such as Figure 9 , Figure 12 as well as Figure 13As shown in the diagram, in this embodiment, the top of the bumper body 2 has a rearward-folding flange. The main body 101 is connected to the flange in the front-rear direction of the vehicle, and the bumper body 2 is provided with a decorative strip 23 that covers the flange. By providing a flange on the bumper body 2, the structural strength of the bumper body 2 is improved, and the connection with the reinforcing bracket 1 is facilitated. Furthermore, by providing the decorative strip 23, the connection structure between the bumper body and the reinforcing bracket 1 can be concealed, further improving the aesthetics of the front bumper.

[0080] Combination Figure 9 and Figure 11 As shown in the figure, to facilitate the connection between the main body 101 and the bumper body 2, a rearward-folding flange can also be provided on the main body 101. For easy distinction, the flange on the bumper body 2 is named the second flange 24, and the flange on the main body 101 is named the third flange 25. The third flange 25 is L-shaped and includes a first plate 2501 that is connected to the main body 101 and extends rearward, and a second plate 2502 that is located at the rear end of the first plate 2501 and extends upward. The first plate 2501 is located below the second flange 24, and the second plate 2502 is located behind the second flange 24. The connection between the main body 101 and the bumper body 2 can be achieved by connecting the second flange 24 and the third flange 25.

[0081] In specific implementation, such as Figure 10 and Figure 11 As shown, a through hole is provided on the second plate 2502 along the front-rear direction of the vehicle, and a bolt hole corresponding to the second plate 2502 is provided on the second flange 24. After the third bolt 26 passes through the through hole, it is connected to the bolt hole on the third flange 25, thereby realizing the connection between the main body 101 and the second flange 24 in the front-rear direction of the vehicle.

[0082] Furthermore, as shown in the figure, multiple rearwardly extending limiting posts 27 can be provided on the second flange 24, and the limiting posts 27 are arranged at intervals along the left-right direction of the vehicle. In this embodiment, two limiting posts 27 are provided at intervals, and limiting holes 28 corresponding to the two limiting posts 27 are provided on the third flange 25. By inserting the limiting posts 27 into the limiting holes 28, the displacement of the reinforcing bracket 1 in the left-right direction and the up-down direction of the vehicle can be restricted. Moreover, the two limiting posts 27 work together to restrict the rotation of the reinforcing bracket 1 around the front-back direction of the vehicle, thereby ensuring the positioning accuracy of the reinforcing bracket 1 during assembly.

[0083] To facilitate the connection between the decorative strip 23 and the first flange 21, multiple downward-extending buckles can be provided at the bottom of the decorative strip 23, and snap holes for engaging with the buckles can be provided on the first flange 21. Since the buckles will pass through the snap holes when engaging, to prevent interference between the buckles and the second flange 24, avoidance holes can be provided on the second flange 24 to avoid the buckles. Furthermore, the buckles in this embodiment can be designed with reference to the structure of buckles commonly used in existing vehicles, and will not be described in detail here.

[0084] It should be noted that, in this embodiment, the choice to connect the main body 101 to the flange of the bumper body 2 is only a preferred implementation method. Furthermore, in other embodiments, the main body 101 can be directly connected to the front surface of the bumper body 2. Also, in this embodiment, the decorative strip 23 that covers the flange on the bumper body 2 is only a preferred implementation method. In other embodiments, the decorative strip 23 can be omitted.

[0085] In a preferred embodiment, a support rib 30 is provided on the main body 101, and the support rib 30 is supported at the bottom of the flange. Figure 3 and Figure 4 As shown, the support ribs 30 can be located at the top of the first plate 2501 and connected between the first plate 2501 and the second plate 2502. Multiple support ribs 30 can be spaced apart along the left-right direction of the vehicle. It is understood that by providing the support ribs 30, the connection strength between the first plate 2501 and the second plate 2502 is ensured, the structural strength of the second flange 24 is improved, and consequently, the connection strength between the reinforcing bracket 1 and the bumper body 2 is ensured. Furthermore, by placing the support ribs 30 at the bottom of the flange, the support effect of the reinforcing bracket 1 on the bumper body 2 is improved, preventing the bumper body 2 from swaying in the vertical direction of the vehicle.

[0086] As a preferred option, such as Figure 14 and Figure 15 As shown, the front-end structure of this embodiment also includes a front bumper beam 32 located behind the lower grille 3. The lower grille 3 has a snap-fit ​​plate 31, the front bumper beam 32 has a connecting plate 33, and a snap-fit ​​arm 29 extending upwards from the connecting plate 33. The snap-fit ​​plate 31 is inserted between the connecting plate 33 and the snap-fit ​​arm 29, and has a snap-fit ​​hole on the snap-fit ​​plate 31. The snap-fit ​​arm 29 has a snap-fit ​​protrusion that snaps into the snap-fit ​​hole. For ease of distinction, the snap-fit ​​hole is named the second snap-fit ​​hole 3101, and the snap-fit ​​protrusion is named the second snap-fit ​​protrusion 2901.

[0087] By connecting the lower grille 3 to the front bumper beam 32, the front bumper beam 32 can support the bumper and provide structural support. Furthermore, as... Figure 2 As shown, the lower grille 3 includes a grille body 301 located below the bumper body 2, and an extension 302 located on the top of the grille body 301 and extending upward to the rear of the mounting area 201. The top of the extension 302 extends between the connecting part 18 and the bumper body 2. The extension 302 and the connecting part 18 are connected by the first bolt 4 mentioned above, and the extension 302 and the bumper body 2 are connected by the second bolt 5 mentioned above.

[0088] like Figure 2 As shown in the figure, in this embodiment, two protrusions 302 are provided at intervals along the left and right direction of the vehicle, and each protrusion 302 is connected to the bumper body 2 by a second bolt 5. A snap-fit ​​plate 31 is provided on the protrusion 302 so that when the lower grille 3 is connected to the front anti-collision beam 32, the stress point is the non-exterior area of ​​the lower grille 3, thereby further ensuring the exquisite appearance of the front of the vehicle body.

[0089] In practice, it will still be as follows Figure 2 As shown, a second protrusion 3021, which protrudes rearward and is hollow inside, is provided on the protrusion 302 to improve the structural strength of the protrusion 302. A snap-fit ​​plate 31 is provided at the rear end of the second protrusion 3021 and extends rearward. During assembly, the snap-fit ​​plate 31 can extend into the gap between the connecting plate 33 and the snap-fit ​​arm 29, thereby allowing the second snap-fit ​​protrusion 2901 on the snap-fit ​​arm 29 to snap into the second snap-fit ​​hole 3101, realizing the snap-fit ​​between the lower grille 3 and the front bumper beam 32, and preventing the front bumper from coming off along the front-rear direction of the vehicle.

[0090] In addition, such as Figure 15 As shown, the second snap-fit ​​protrusion 2901 has a downward-arching "V"-shaped plate structure. By snapping it into the second snap-fit ​​hole 3101, it can connect the lower grille 3 to the front bumper beam 32. When the front of the vehicle is hit by a collision, the second snap-fit ​​protrusion 2901 can break, achieving crumpling and weakening along the longitudinal direction of the vehicle, thereby achieving the purpose of energy absorption and improving the protection of pedestrians. It should also be noted that the structures not mentioned in the above-mentioned front bumper beam 32, lower grille 3, bumper body 2, and decorative strip 23 can be designed with reference to the relevant structures on existing vehicles, and will not be described in detail here.

[0091] In this embodiment, the front-end structure of the vehicle body connects the main body 101 to the bumper body 2 and the connecting portion 18 on the extension portion 102 to the lower grille 3, which helps to improve the strength of the front end of the vehicle body in the vertical direction and the continuity of force transmission. Furthermore, by positioning the connecting portion 18 at the rear of the mounting area 201, that is, the fastening stress point when the connecting portion 18 is connected to the lower grille 3 is located in a non-appearance area, it helps to solve problems such as uneven light and shadow caused by the front bumper being stretched, thus improving the overall appearance of the front of the vehicle. In addition, by providing a crumple zone structure, it can ensure the load-bearing capacity of the front of the vehicle in the vertical direction while improving pedestrian protection in the event of a collision.

[0092] Example 2

[0093] This embodiment relates to a vehicle, which has the front body structure shown in Embodiment 1.

[0094] The vehicle in this embodiment has the same technical effect as the front-end structure of the vehicle body in Embodiment 1 compared to the prior art, and will not be described in detail here.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A front-end structure for a vehicle body, characterized in that: It includes a reinforcing bracket (1) mounted on the front bumper, the reinforcing bracket (1) extending along the left-right direction of the vehicle and including a main body (101) and an extension (102) located at the bottom of the main body (101); The main body (101) is connected to the bumper body (2) of the front bumper. The bumper body (2) has an installation area (201) for installing a license plate. The extension (102) extends downward along the vertical direction of the whole vehicle, and the extension (102) is provided with a connecting part (18). The connecting part (18) is located on the rear side of the installation area (201) and is connected to the lower grille (3) of the front bumper. Along the front-rear direction of the vehicle, the main body (101) is provided with a rearwardly protruding connecting seat; The connecting seat includes a seat body connected to the main body (101) and a connecting body connected to the front end frame. The seat body is provided with a collapsible structure, which is used to guide the connecting seat to collapse along the front-rear direction of the vehicle. The connecting seats are multiple ones provided on the main body (101), and the front end frame is provided with a mounting bracket (13); One part of the connecting seat is connected to the mounting bracket (13) in the vertical direction of the vehicle and restricts the displacement of the reinforcing bracket (1) in the left-right direction and the front-back direction of the vehicle; the mounting bracket (13) is provided with a limiting part (16), which abuts against another part of the connecting seat and restricts the displacement of the connecting seat in the vertical direction of the vehicle.

2. The vehicle front end structure according to claim 1, characterized in that: The seat body is hollow inside; The crumple structure includes a crumple hole (8) provided on the seat body, the crumple hole (8) extending along the front-rear direction of the vehicle, and / or, the crumple structure includes a plurality of stepped portions (9) provided on the seat body, the plurality of stepped portions (9) gradually approaching the center of the seat body, and the plurality of stepped portions (9) are arranged sequentially rearward along the front-rear direction of the vehicle.

3. The vehicle front end structure according to claim 1, characterized in that: The extension portion (102) is provided with a limiting rib (17), which protrudes forward along the front-rear direction of the vehicle and abuts against the front bumper; and / or, The extension portion (102) includes a plurality of longitudinal beams extending downward along the vertical direction of the vehicle, and a crossbeam disposed at the bottom of the plurality of longitudinal beams.

4. The vehicle front end structure according to claim 1, characterized in that: The extension portion (102) includes two parts (1021) arranged opposite each other in the left-right direction of the vehicle, with an installation space (19) formed between the two parts (1021), the installation space (19) being used to install a radar mounting bracket (20); or, The extension portion (102) extends along the left-right direction of the vehicle, and a radar mounting portion is provided in the middle of the extension portion (102).

5. The vehicle front end structure according to claim 1, characterized in that: The top of the bumper body (2) has a rearward-folding flange; The main body (101) is connected to the flange in the front-rear direction of the vehicle, and / or the bumper body (2) is provided with a decorative strip (23) that covers the flange.

6. The vehicle front end structure according to claim 5, characterized in that: The main body (101) is provided with a support rib (30), which supports the bottom of the flange.

7. The vehicle front end structure according to any one of claims 1 to 6, characterized in that: It also includes a front bumper beam (32) located behind the lower grille (3); The lower grille (3) is provided with a snap-fit ​​plate (31), the front anti-collision beam (32) is provided with a connecting plate (33), and a snap-fit ​​arm (29) extending upward toward the connecting plate (33); The snap-fit ​​plate (31) is inserted between the connecting plate (33) and the snap-fit ​​arm (29), and the snap-fit ​​plate (31) is provided with snap-fit ​​holes, and the snap-fit ​​arm (29) has snap-fit ​​protrusions that snap into the snap-fit ​​holes.

8. A vehicle, characterized in that: The vehicle is provided with a front body structure as described in any one of claims 1 to 7.

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