Vehicle door bumper bar support structure and vehicle

By designing a door anti-collision bar bracket structure, the bracket body is connected to the door lower hinge reinforcement plate to form a triangular support, which enhances the structural strength and contact area. This solves the problem of poor adhesive bonding in traditional door anti-collision structures, and achieves efficient impact resistance and improved safety of the door.

CN223618562UActive Publication Date: 2025-12-02ZHANGJIAGANG GREAT WALL MOTOR R&D CO LTD
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Patent Information

Application Number
CN202520160402.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2025-12-02
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

In traditional car door anti-collision structures, adhesive bonding methods are ineffective and cumbersome to install, affecting the overall safety of the car door.

Method used

A door anti-collision bar bracket structure is designed. One end of the bracket body is connected to the middle of the door anti-collision bar, and the other end is connected to the door lower hinge reinforcement plate to form a triangular support structure. It is fixed by welding. The side flanges and auxiliary flanges of the bracket body enhance the structural strength. The adhesive groove is used to increase the contact area, and the weight reduction holes and reinforcing ridges improve the connection reliability.

Benefits of technology

It improves the dent resistance of the outer door panel, simplifies the installation process, reduces costs, and enhances the side impact resistance and overall safety of the door.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223618562U_ABST
    Figure CN223618562U_ABST
Patent Text Reader

Abstract

The utility model provides a car door anti-collision rod support structure and a car, and belongs to the technical field of car door anti-collision structures, the car door anti-collision rod support structure comprises a support body, one end of the support body is connected with the middle of a car door anti-collision rod, and the other end of the support body extends forwards and downwards to be connected with a car door lower hinge reinforcing plate. The support body can be supported on the inner side of an automobile door outer plate. According to the car door anti-collision rod support structure, the support body is connected between the middle of the car door anti-collision rod and the car door lower hinge reinforcing plate, the upper end of the support body can be used for supporting the structure of the car door anti-collision rod, and the outer side wall of the support body can support the inner side of the car door outer plate. According to the automobile door outer plate, the capacity of resisting external impact is improved, the overall connection performance is improved, the structural stability is guaranteed, impact force can be effectively dispersed when side impact happens to an automobile door, and good safety performance is achieved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle door anti-collision structure, and more specifically, it relates to a vehicle door anti-collision bar bracket structure and vehicle. Background Technology

[0002] As people's requirements for the safety and stability of vehicle doors increase, the reliability requirements for door anti-collision structures are also rising, as the safety of these structures directly affects passenger safety. Traditional techniques often involve installing small brackets on the door anti-collision bars and applying adhesive to these brackets, relying on the expansion of the adhesive to connect the brackets to the outer door panel. However, this method suffers from poor adhesion and cumbersome installation, ultimately impacting the overall safety of the door. Utility Model Content

[0003] The purpose of this utility model is to provide a door anti-collision bar bracket structure and vehicle, which can effectively improve the anti-dent performance of the outer door panel and ensure the overall safety of the door.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a door anti-collision bar bracket structure is provided, including a bracket body, one end of the bracket body is connected to the middle of the door anti-collision bar, and the other end of the bracket body extends forward and downward to be connected to the door lower hinge reinforcement plate. The bracket body can be supported on the inner side of the outer panel of the door.

[0005] In this embodiment, the door anti-collision bar and the bracket body, together with the front flange of the inner door panel, can form a triangular support structure (projected in the Y direction of the vehicle body), which improves the anti-collision performance of the door anti-collision bar. More importantly, the bracket body can provide support to the inner wall of the outer door panel. When the outer door panel is impacted, the impact on the outer door panel is reduced, thus improving the vehicle's side impact protection performance.

[0006] Meanwhile, the aforementioned bracket body has a simple structure and is easy to install. It can be connected to the door anti-collision bar or the door lower hinge reinforcement plate by welding, eliminating the cumbersome manufacturing and assembly of multiple brackets of traditional height, simplifying installation and welding processes, effectively reducing manufacturing and assembly costs, and ensuring the safety of the door during use.

[0007] In one possible implementation, both sides of the bracket body have side flanges that bend inward toward the vehicle body. The bracket body is connected to the peripheral wall of the door anti-collision bar via these side flanges, and the side flanges and the bracket body together form a reinforcing cavity with an opening facing inward toward the vehicle body. The side flanges on both sides of the bracket body structurally reinforce the bracket body. Based on the bracket body being a plate-like component, the side flanges work together to form a spatial structure, ensuring the structural strength of the bracket body itself and improving its support for the outer door panel.

[0008] In some embodiments, the edge of the side flap is also connected to an auxiliary flap that is connected to the peripheral wall of the door anti-collision bar, and the auxiliary flap extends away from the reinforcing cavity. By providing an auxiliary flap at the edge of the side flap, the auxiliary flap is effectively connected to the outer peripheral wall of the door anti-collision bar. The auxiliary flap extends away from the reinforcing cavity, that is, away from the central axis of the reinforcing cavity, which increases the contact area with the door anti-collision bar. In some embodiments, the upper end of the bracket body is provided with an arc-shaped portion, and the side flaps on both sides of the bracket body extend upward to meet each other, and the auxiliary flaps on both sides of the bracket body also extend upward to meet each other. The arc-shaped portion at the upper end of the bracket body facilitates sheet metal processing and forming. The side flaps and auxiliary flaps on both sides of the bracket body extend upward to the upper end of the arc-shaped portion to form an interlocking effect, which improves the structural strength of the upper end of the bracket body and ensures the reliability of the connection with the middle position of the door anti-collision bar.

[0009] In one possible implementation, the bracket body is provided with an adhesive groove recessed towards the inside of the vehicle body. The adhesive groove is elongated and is positioned along the extending direction of the bracket body.

[0010] In this embodiment, the adhesive groove provided on the bracket body is used to fill adhesive, and the adhesive is used to further connect the outer door panel and the bracket body, thereby increasing the contact area between the bracket body and the outer door panel and improving the support performance of the outer door panel.

[0011] In one possible implementation, several adhesive grooves are provided, and these adhesive grooves are spaced apart along the extension direction of the bracket body. This allows different parts of the bracket body in the extension direction to form a reliable connection with the outer door panel, achieving good support, meeting the side impact protection requirements of the outer door panel, and improving the overall safety of the vehicle.

[0012] In some embodiments, a weight-reducing hole is also provided through the bracket body, and the edge of the weight-reducing hole has a weight-reducing flange recessed towards the inside of the vehicle body, with the weight-reducing flange extending towards the center of the weight-reducing hole.

[0013] In this embodiment, the weight-reducing holes provided on the support body can reduce the structural weight of the support body, which facilitates the reduction of material consumption and the overall weight of the components. Weight-reducing flanges are provided at the edges of the weight-reducing holes. To address the structural attenuation issues at the weight-reducing hole locations, the weight-reducing flanges can be used to compensate for strength loss, ensuring the strength performance of the support body.

[0014] In one possible implementation, the front end of the bracket body has a forward-extending connecting plate that connects to the lower hinge reinforcement plate of the door. The bracket body is connected to the lower hinge reinforcement plate via the front connecting plate. The connecting part is a plate-shaped component that can reliably connect to the outer wall of the lower hinge reinforcement plate of the door, facilitating the effective distribution of the force received by the bracket body to the lower hinge reinforcement plate and the inner door panel, thereby improving the impact resistance of the outer door panel.

[0015] In some embodiments, the connecting plate is provided with a reinforcing ridge protruding outwards from the vehicle body. The reinforcing ridge extends to the front edge of the connecting plate, and the connecting plate has connecting portions located on the upper and lower sides of the reinforcing ridge. The connecting portions are connected to the outer wall of the lower hinge reinforcing plate of the door.

[0016] In this embodiment, the structural strength of the connecting plate is improved by setting a reinforcing ridge on the connecting plate, and the connecting parts on the upper and lower sides of the reinforcing ridge are connected to the outer side wall of the lower hinge reinforcing plate of the car door, respectively, so as to meet the reliability of the connection.

[0017] Compared with the prior art, the solution shown in this application embodiment provides a door anti-collision bar bracket structure. The bracket body is connected between the middle of the door anti-collision bar and the lower hinge reinforcement plate of the door. It can not only use the upper end of the bracket body to form a structural support for the door anti-collision bar, but also the outer wall of the bracket body can form a support from the inner side of the door outer panel, improving the door outer panel's ability to resist external impacts, improving the overall connection performance, ensuring the stability of the structure, and effectively dispersing the impact force when the door is involved in a side collision, thus having good safety performance.

[0018] This utility model also provides a vehicle, which includes a door anti-collision bar bracket structure. The vehicle utilizes a bracket body connected between the middle of the door anti-collision bar and the lower hinge reinforcement plate of the door to support the outer door panel, improving the outer door panel's resistance to external impacts, enhancing overall connection performance, ensuring structural stability, and effectively dispersing impact force during a side collision, thus exhibiting good safety performance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A front view structural schematic diagram of the door anti-collision bar bracket structure provided in the embodiment of this utility model in use;

[0021] Figure 2 This is an embodiment of the present utility model. Figure 1 A partially enlarged schematic diagram of the CRRC door anti-collision bar bracket structure in use from another angle;

[0022] Figure 3 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the structure of the anti-collision bar bracket for the CRRC door;

[0023] Figure 4 This is an embodiment of the present utility model. Figure 3 Another structural diagram of the CRRC door anti-collision bar bracket structure.

[0024] The following are the labeling elements in the figure:

[0025] 1. Bracket body; 11. Side flange; 12. Auxiliary flange; 13. Arc-shaped part; 14. Extension plate; 15. Wiring harness hole; 2. Adhesive groove; 3. Weight reduction hole; 31. Weight reduction flange; 4. Connecting plate; 41. Reinforcing ridge; 42. Connecting part; 5. Inner door panel; 6. Door anti-collision bar; 7. Lower door hinge reinforcement plate. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] In the claims, description, and accompanying drawings of this utility model, the terms "front" and "rear" refer to the front-rear direction of the vehicle body, "left" and "right" refer to the left-right direction of the vehicle body, and "upper" and "lower" refer to the vertical direction of the vehicle body. The term "inner" refers to the direction towards the central axis of the vehicle body, and the term "outer" refers to the direction away from the central axis of the vehicle body, wherein the central axis of the vehicle body is parallel to the front-rear direction of the vehicle body. Other directional terms, unless otherwise explicitly defined, such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "clockwise," "counterclockwise," "high," and "low," are used to indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0028] Please refer to the following: Figures 1 to 4The present invention will now describe the door anti-collision bar bracket structure and the vehicle provided. The door anti-collision bar bracket structure includes a bracket body 1. One end of the bracket body 1 is connected to the middle of the door anti-collision bar 6, and the other end of the bracket body 1 extends forward and downward to connect with the lower hinge reinforcement plate 7 of the door. The bracket body 1 can be supported on the inner side of the outer panel of the door.

[0029] Compared with the prior art, the door anti-collision bar bracket structure provided in this embodiment has a bracket body 1 connected between the middle of the door anti-collision bar 6 and the lower hinge reinforcement plate 7 of the door. It can not only use the upper end of the bracket body 1 to form a structural support for the door anti-collision bar 6, but also the outer wall of the bracket body 1 can form a support from the inner side of the door outer panel, improving the door outer panel's ability to resist external impact, improving the overall connection performance, ensuring the stability of the structure, and effectively dispersing the impact force when the door is involved in a side collision, thus having good safety performance.

[0030] In this embodiment, the front end of the door anti-collision bar 6 gradually extends forward and upward, while the bracket body 1 extends forward and downward. The bracket body 1 is connected to the middle area of ​​the door anti-collision bar 6. This position refers to the area near the center in the length direction of the door anti-collision bar 6, and is not limited to a specific location. The door anti-collision bar 6, the bracket body 1, and the front flange 11 of the inner door panel 5 can form a triangular support structure (projected in the Y direction of the vehicle body), which improves the anti-collision performance of the door anti-collision bar 6. More importantly, the bracket body 1 can provide support to the inner wall of the outer door panel. When the outer door panel is impacted, it reduces the impact on the outer door panel and improves the vehicle's side impact resistance.

[0031] Meanwhile, the structure of the bracket body 1 is simple and easy to install. It can be connected to the door anti-collision bar 6 or the door lower hinge reinforcement plate 7 by welding, which eliminates the cumbersome manufacturing and assembly of multiple brackets of traditional height, simplifies the installation and welding process, effectively reduces the manufacturing and assembly cost, and ensures the safety of the door during use.

[0032] Specifically, the bracket body 1 can be connected to the door anti-collision bar 6 or the door lower hinge reinforcement plate 7 by carbon dioxide gas shielded welding. Carbon dioxide gas shielded welding is a welding method that uses carbon dioxide gas as a shielding gas. It is simple to operate, suitable for automatic welding and all-round welding, and facilitates the stability of welding quality, thereby improving the overall safety and stability of the door.

[0033] When the outer door panel is involved in a side impact and is subjected to an impact force towards the inside of the vehicle body, the bracket body 1 can disperse the impact force to the lower hinge reinforcement plate 7 and the inner door panel 5, thereby improving the dent resistance of the outer door panel and enhancing the overall safety of the door.

[0034] In one possible implementation, the aforementioned feature support body 1 can be adopted as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4 Both sides of the bracket body 1 have side flaps 11 that bend inward toward the vehicle body. The bracket body 1 is connected to the periphery of the door anti-collision bar 6 through the side flaps 11. The side flaps 11 and the bracket body 1 form a reinforcing cavity with the opening facing inward toward the vehicle body.

[0035] In this embodiment, the side flanges 11 on both sides of the bracket body 1 are used to reinforce the structure of the bracket body 1. Based on the bracket body 1 being a plate-shaped component, the side flanges 11 can work with the bracket body 1 to form a spatial structure, ensuring the structural strength of the bracket body 1 and improving its support for the outer panel of the car door.

[0036] Specifically, the bracket body 1 and the side flange 11 can be manufactured using a sheet metal integral molding method. The side flange 11 and the bracket body 1 form a reinforcing cavity. The opening of the reinforcing cavity is set facing the inside of the vehicle body. The outer wall of the bracket body 1 forms a support for the outer door panel, thereby enhancing the outer door panel's ability to resist external impacts.

[0037] In some embodiments, the aforementioned feature side flange 11 can be adopted as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4 The edge of the side flap 11 is also connected to an auxiliary flap 12 that is connected to the periphery of the door anti-collision bar 6. The auxiliary flap 12 extends away from the reinforcing cavity.

[0038] In this embodiment, an auxiliary flange 12 is provided at the edge of the side flange 11, and the auxiliary flange 12 is effectively connected to the outer peripheral wall of the door anti-collision bar 6. The auxiliary flange 12 extends away from the reinforcing cavity, that is, away from the central axis of the reinforcing cavity, which can increase the contact area with the door anti-collision bar 6.

[0039] Specifically, the auxiliary flange 12 can be provided with an arc-shaped surface that fits and connects with the outer peripheral wall of the door anti-collision bar 6. By using this arc-shaped surface to contact and weld with the outer peripheral wall of the door anti-collision bar 6, the welding area can be effectively increased and the welding reliability can be improved.

[0040] In some embodiments, the aforementioned feature support body 1 can be adopted as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4The upper end of the bracket body 1 is provided with an arc-shaped portion 13. The side flanges 11 on both sides of the bracket body 1 extend upward to meet each other, and the auxiliary flanges 12 on both sides of the bracket body 1 also extend upward to meet each other. The arc-shaped portion 13 at the upper end of the bracket body 1 facilitates sheet metal processing and forming. The side flanges 11 and auxiliary flanges 12 on both sides of the bracket body 1 extend upward to the upper end of the arc-shaped portion 13 to form an interlocking effect, which improves the structural strength of the upper end of the bracket body 1 and ensures the reliability of the connection with the middle position of the door anti-collision bar 6.

[0041] Based on the above structure, an extension plate 14 is provided above the arc-shaped part 13. The extension plate 14 is provided with a wire harness hole 15, which is used to allow the wire harness to pass through and limit the direction of the wire harness.

[0042] In one possible implementation, the aforementioned feature support body 1 can be adopted as follows: Figure 3 The structure shown. See also Figure 3 The bracket body 1 is provided with an adhesive groove 2 recessed towards the inside of the vehicle body. The adhesive groove 2 is elongated and is provided along the extension direction of the bracket body 1.

[0043] In this embodiment, the adhesive groove 2 provided on the bracket body 1 is used to fill adhesive, and the adhesive is used to further connect the outer door panel and the bracket body 1, thereby increasing the contact area between the bracket body 1 and the outer door panel and improving the support performance of the outer door panel.

[0044] Specifically, there are several adhesive grooves 2, which are spaced apart along the extension direction of the bracket body 1. This allows the bracket body 1 to form a reliable connection with the outer door panel at different parts in the extension direction, achieving good support, meeting the side impact protection requirements of the outer door panel, and improving the overall safety of the vehicle.

[0045] In some embodiments, the aforementioned feature support body 1 can be adopted as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4 The bracket body 1 is also provided with a weight reduction hole 3. The edge of the weight reduction hole 3 has a weight reduction flange 31 that is recessed towards the inside of the vehicle body. The weight reduction flange 31 extends towards the center of the weight reduction hole 3.

[0046] In this embodiment, the weight-reducing holes 3 provided on the support body 1 can reduce the structural weight of the support body 1, which facilitates the reduction of material consumption and the overall weight of the components. A weight-reducing flange 31 is provided at the edge of the weight-reducing hole 3. In view of the structural attenuation problem at the weight-reducing hole 3, the weight-reducing flange 31 can be used to compensate for the strength and ensure the strength performance of the support body 1.

[0047] In one possible implementation, the aforementioned feature support body 1 can be adopted as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4 The front end of the bracket body 1 has a forward-extending connecting plate 4, which is connected to the lower hinge reinforcement plate 7 of the car door.

[0048] In this embodiment, the bracket body 1 is connected to the lower hinge reinforcement plate via the connecting plate 4 at the front end. The connecting part 42 is a plate-shaped component that can be reliably connected to the outer wall of the lower hinge reinforcement plate 7 of the car door. This facilitates the bracket body 1 to effectively disperse the force received onto the lower hinge reinforcement plate 7 of the car door and the inner panel 5 of the car door, thereby improving the impact resistance of the outer panel of the car door.

[0049] In some embodiments, the aforementioned feature connecting plate 4 can be adopted as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4 The connecting plate 4 is provided with a reinforcing ridge 41 that protrudes outward from the vehicle body. The reinforcing ridge 41 extends to the front edge of the connecting plate 4. The connecting plate 4 has connecting portions 42 located on the upper and lower sides of the reinforcing ridge 41. The connecting portions 42 are connected to the outer wall of the lower hinge reinforcing plate 7 of the door.

[0050] In this embodiment, the structural strength of the connecting plate 4 is improved by setting a reinforcing ridge 41 on the connecting plate 4, and the connecting parts 42 on the upper and lower sides of the reinforcing ridge 41 are connected to the outer side wall of the lower hinge reinforcing plate 7 of the car door respectively, so as to meet the reliability of the connection.

[0051] Based on the same inventive concept, this application also provides a vehicle, which includes a door anti-collision bar bracket structure. The vehicle utilizes a bracket body 1 connected between the middle of the door anti-collision bar 6 and the lower door hinge reinforcement plate 7 to support the outer door panel, improving the outer door panel's resistance to external impacts, enhancing overall connection performance, ensuring structural stability, and effectively dispersing impact forces during a side collision, thus exhibiting good safety performance.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A door anti-collision bar bracket structure, characterized in that, Includes a bracket body (1), one end of which is connected to the middle of the door anti-collision bar (6), and the other end of which extends forward and downward to be connected to the door lower hinge reinforcement plate (7). The bracket body (1) can be supported on the inner side of the door outer panel.

2. The door anti-collision bar bracket structure as described in claim 1, characterized in that, Both sides of the bracket body (1) have side flaps (11) that bend inward toward the vehicle body. The bracket body (1) is connected to the periphery of the door anti-collision bar (6) through the side flaps (11). The side flaps (11) and the bracket body (1) form a reinforcing cavity with the opening facing inward toward the vehicle body.

3. The door anti-collision bar bracket structure as described in claim 2, characterized in that, The edge of the side flap (11) is also connected to an auxiliary flap (12) which is connected to the peripheral wall of the door anti-collision bar (6). The auxiliary flap (12) extends away from the reinforcing cavity.

4. The door anti-collision bar bracket structure as described in claim 3, characterized in that, The upper end of the support body (1) is provided with an arc-shaped part (13), the side flanges (11) located on both sides of the support body (1) extend upward to connect, and the auxiliary flanges (12) located on both sides of the support body (1) also extend upward to connect.

5. The door anti-collision bar bracket structure as described in claim 1, characterized in that, The bracket body (1) is provided with an adhesive groove (2) recessed towards the inside of the vehicle body. The adhesive groove (2) is elongated and is provided along the extension direction of the bracket body (1).

6. The door anti-collision bar bracket structure as described in claim 5, characterized in that, The adhesive groove (2) is provided in a plurality of places, and the plurality of adhesive grooves (2) are spaced apart along the extension direction of the bracket body (1).

7. The door anti-collision bar bracket structure as described in claim 6, characterized in that, The bracket body (1) is also provided with a weight reduction hole (3), the edge of the weight reduction hole (3) has a weight reduction flange (31) recessed towards the inside of the vehicle body, and the weight reduction flange (31) extends towards the center of the weight reduction hole (3).

8. The door anti-collision bar bracket structure as described in any one of claims 1-7, characterized in that, The front end of the bracket body (1) has a forward-extending connecting plate (4), which is connected to the lower hinge reinforcement plate (7) of the car door.

9. The door anti-collision bar bracket structure as described in claim 8, characterized in that, The connecting plate (4) is provided with a reinforcing ridge (41) protruding outward from the vehicle body. The reinforcing ridge (41) extends to the front edge of the connecting plate (4). The connecting plate (4) has connecting portions (42) located on the upper and lower sides of the reinforcing ridge (41). The connecting portions (42) are connected to the outer wall of the lower hinge reinforcing plate (7) of the door.

10. A vehicle, characterized in that, The door anti-collision bar bracket structure includes any one of claims 1-9.