A stand column reinforcing structure and vehicle body

Abstract

The utility model provides an A stand column reinforcing structure and a vehicle body, the A stand column reinforcing structure comprises an A stand column upper reinforcer and further comprises a reinforcing part, the reinforcing part is connected with the A stand column upper reinforcer, and a closed cavity structure group is formed between the reinforcing part and the A stand column upper reinforcer, so that the closed cavity structure group supports the A stand column upper reinforcer in the X direction; wherein the X direction is based on an automobile coordinate system. According to the technical scheme, the direct impact performance of the A stand column is improved, and light weight is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more specifically, to an A-pillar strengthening structure and a vehicle body. Background Art

[0002] With the development of automotive technology, occupant safety and ride comfort have become the focus pursued by major automobile manufacturers. The A-pillar area plays a crucial role in preventing the deformation of the occupant compartment during a collision and protecting the occupants from serious injuries, which is related to the life safety of the occupants. The mode of the CCB directly affects the ride experience of the occupants.

[0003] One of the prior arts discloses an automotive lower A-pillar, which includes a lower A-pillar inner panel, a lower A-pillar outer panel, a first hinge reinforcement plate, and a second hinge reinforcement plate. The area between the first hinge reinforcement plate and the second hinge reinforcement plate of the lower A-pillar outer panel and the lower A-pillar inner panel is the main deformation area. The automotive lower A-pillar further includes a first support member and a second support member, and the first support member and the second support member are arranged on the main deformation area of the lower A-pillar outer panel. The arrangement of the first support member and the second support member can improve the structural strength of the automotive lower A-pillar, and can also improve the transmission performance of the X-direction load and the Y-direction load, as well as the bending resistance performance around the Y / Z direction. Moreover, arranging the first support member and the second support member on the main deformation area of the lower A-pillar outer panel can meet the lightweight design and cost control requirements of the automotive lower A-pillar.

[0004] Another prior art discloses an A-pillar strengthening structure, which includes an A-pillar inner panel. An A-pillar reinforcement plate is fixed on the A-pillar inner panel, and a side outer panel is fixed on the A-pillar reinforcement plate. One side of the side outer panel is fixedly attached to the A-pillar inner panel, and the other side is fixedly attached to the A-pillar reinforcement plate. An A-pillar rear anti-collision box is provided on the upper part of the A-pillar reinforcement plate, and an A-pillar front anti-collision box is provided between the upper part of the A-pillar inner panel and the side outer panel. By adding an anti-collision box at the front end and inside of the A-pillar reinforcement plate and then welding it with the A-pillar inner panel to form a closed cavity, the energy generated by the collision is transmitted to the side roof beam and the door through the front and rear anti-collision boxes for absorption. At the same time, the A-pillar rear anti-collision box also serves as the installation reinforcement plate for the front door hinge, providing sufficient stiffness and strength for the fixation of the front door.

[0005] Although the prior art has solved the function of anti-collapse deformation of the occupant compartment of the A-pillar in the existing vehicle collision safety, the sheet metal thickness is relatively heavy, the structure is complex, it is not lightweight, and the contribution to the improvement of the mode of the CCB installation point is relatively small. Summary of the Utility Model

[0006] In view of this, one of the purposes of the embodiments of the present application is to provide an A-pillar strengthening structure, which can solve the problem that the prior art is not lightweight.

[0007] To achieve the above technical objectives, the technical solutions adopted in this application are as follows:

[0008] In a first aspect, an A-pillar reinforcement structure provided by an embodiment of the present application includes an upper A-pillar reinforcement member and a reinforcement portion. The reinforcement portion is connected to the upper A-pillar reinforcement member, and a closed cavity structure group is formed between the reinforcement portion and the upper A-pillar reinforcement member, so that the closed cavity structure group forms a support in the X direction for the upper A-pillar reinforcement member, where the X direction is based on the vehicle coordinate system.

[0009] Further, the reinforcement portion includes a front door upper hinge support member, and the closed cavity structure group includes a first cavity structure formed by surrounding the front door upper hinge support member and the upper A-pillar reinforcement member.

[0010] Further, the reinforcement portion further includes an inner middle A-pillar panel, and the closed cavity structure group includes a second cavity structure formed by surrounding the inner middle A-pillar panel and the upper A-pillar reinforcement member. The front door upper hinge support member is arranged between the inner middle A-pillar panel and the upper A-pillar reinforcement member.

[0011] Further, the inner middle A-pillar panel and the front door upper hinge support member are connected by a threaded connector. The inner middle A-pillar panel and the front door upper hinge support member are arranged along the Y direction, so that the threaded connector forms a support in the Y direction for both the inner middle A-pillar panel and the front door upper hinge support member, where the Y direction is based on the vehicle coordinate system.

[0012] Further, a first reinforcing rib is provided on the front door upper hinge support member, and the first reinforcing rib is arranged on the mounting surface where the front door upper hinge support member is connected to the inner middle A-pillar panel.

[0013] Further, a second reinforcing rib is provided on the front door upper hinge support member, and the second reinforcing rib is arranged at the position where the front door upper hinge support member is connected to the flange of the upper A-pillar reinforcement member.

[0014] Further, the front door upper hinge support member is provided with a weight-reducing hole.

[0015] Further, the reinforcement portion includes an upper A-pillar hinge reinforcement member, and the closed cavity structure group includes a third cavity structure formed by surrounding the upper A-pillar hinge reinforcement member and the upper A-pillar reinforcement member.

[0016] In a second aspect, an embodiment of the present application provides a vehicle body including the above A-pillar reinforcement structure.

[0017] The utility model adopting the above technical solutions has the following advantages:

[0018] In the technical solution provided by this application, the upper reinforcement of the A-pillar is connected to the reinforcing part, so that a closed cavity structure is formed between the upper reinforcement of the A-pillar and the reinforcing part, improving the strength of the upper reinforcement of the A-pillar. Since the closed cavity structure provides support for the upper reinforcement of the A-pillar in the X direction, while improving the frontal collision performance of the A-pillar, compared with the prior art method of adding sheet metal parts to improve the strength of the A-pillar, the technical solution of this application achieves lightweighting.

[0019] In the technical solution provided by this application, since the front door upper hinge support, the inner middle plate of the A-pillar, and the upper hinge reinforcement of the A-pillar are all connected to the upper reinforcement of the A-pillar, the CCB mounting point is located on the closed cavity structure, improving the modal performance of the CCB mounting point. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] This application can be further illustrated by the non-limiting embodiments given in the drawings. It should be understood that the following drawings only show some embodiments of this application, so it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram provided by an embodiment of this application.

[0022] Figure 2 It is a schematic diagram of the connection relationship between the hinge support and the upper reinforcement of the A-pillar provided by an embodiment of this application.

[0023] Figure 3 It is a schematic diagram of the hinge reinforcement structure provided by an embodiment of this application.

[0024] Figure 4 It is a schematic diagram of the connection method between the inner middle plate of the A-pillar and the upper reinforcement of the A-pillar provided by an embodiment of this application.

[0025] Figure 5 It is a schematic diagram of the connection method between the inner middle plate of the A-pillar and the hinge support provided by an embodiment of this application.

[0026] Figure 6 It is a schematic diagram of the frontal collision force transmission method provided by an embodiment of this application.

[0027] Figure 7 It is a schematic diagram of the force transmission method of the CCB provided by an embodiment of this application.

[0028] Reference Signs: 1-Upper reinforcement of the A-pillar; 2-Reinforcing part;

[0029] 21 - Front door upper hinge support; 211 - First welding surface; 212 - Second welding surface; 213 - Third welding surface; 214 - First reinforcing rib; 215 - Weight reduction hole; 216 - Second reinforcing rib;

[0030] 22 - A-pillar upper hinge reinforcement; 221 - First solder joint; 222 - Second solder joint; 223 - Third reinforcing rib;

[0031] 23 - A-pillar middle inner panel; 231 - Third solder joint;

[0032] 3 - Threaded connecting piece. Specific embodiments

[0033] The following will describe the present application in detail with reference to the accompanying drawings and specific embodiments. It should be noted that in the description of the drawings or the specification, similar or identical parts are denoted by the same reference numerals, and the implementation manners not depicted or described in the drawings are in the forms known to those of ordinary skill in the art. In the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0034] This embodiment provides an A-pillar reinforcement structure. The reinforcement structure includes an A-pillar upper reinforcement 1 and also includes a reinforcement part 2. The reinforcement part 2 is connected to the A-pillar upper reinforcement 1, so that a closed cavity structure group is formed between the reinforcement part 2 and the A-pillar upper reinforcement 1. The reinforcement part 2 and the A-pillar upper reinforcement 1 are arranged along the Y direction, so that the closed cavity structure group provides support for the A-pillar upper reinforcement in the X direction, where the X direction and the Y direction are both based on the vehicle coordinate system. The closed cavity structure group represents a combination of several cavity structures.

[0035] In this embodiment, by setting the reinforcement part to be connected to the A-pillar upper reinforcement 1 and forming a closed cavity structure group, the strength of the A-pillar upper reinforcement 1 is improved. At the same time, since the closed cavity structure provides support for the A-pillar upper reinforcement 1 in the X direction, the A-pillar upper reinforcement 1 with the closed cavity structure has better frontal collision performance. At the same time, compared with the prior art, the A-pillar reinforcement structure proposed in this embodiment realizes the lightweight of the whole vehicle.

[0036] In at least one embodiment, as Figure 2 shown, the reinforcement part 2 includes a front door upper hinge support 21. The front door upper hinge support 21 is connected to the front door hinge and is installed on the front door. A first cavity structure is formed by enclosing between the front door upper hinge support 21 and the A-pillar upper reinforcement 1.

[0037] The front door upper hinge support 21 is spot-welded to the bottom surface of the A-pillar upper reinforcement 1 through the first welding surface 211, spot-welded to the side surface of the A-pillar upper reinforcement 1 through the second welding surface 212, and welded to the flange of the A-pillar upper reinforcement 1 through the third welding surface 213, so that the first cavity structure extending in the X direction is formed through the above welding method.

[0038] In this embodiment, a first reinforcing rib 214 is provided on the front door upper hinge support 21. The first reinforcing rib 214 is a vertical rib arranged along the Y direction. The first reinforcing rib 214 is located at the position corresponding to the flange of the A-pillar upper reinforcement 1, and this corresponding position is the third welding surface 213, which can increase the strength of the flange of the A-pillar upper reinforcement 1.

[0039] In at least one embodiment, the reinforcing part 2 further includes the A-pillar middle inner panel 23. The A-pillar middle inner panel 23 belongs to a part of the A-pillar middle inner panel assembly. The A-pillar middle inner panel 23 has a flange edge, and the flange edge is connected to the flange of the A-pillar upper reinforcement 1. A second cavity structure is formed between the A-pillar middle inner panel 23 and the A-pillar upper reinforcement 1. As Figure 4 shown, there are a plurality of third solder joints 231 between the A-pillar middle inner panel 23 and the A-pillar upper reinforcement 1. The A-pillar middle inner panel 23 and the A-pillar upper reinforcement 1 are welded through the third solder joints 231, thereby forming a second cavity structure. The A-pillar middle inner panel 23 and the A-pillar upper reinforcement 1 are arranged along the Y direction, forming a supporting force for the A-pillar in the X direction.

[0040] In at least one embodiment, as Figure 5 shown, the front door upper hinge support 21 and the A-pillar middle inner panel 23 are connected by a threaded connector 3. Among them, the front door upper hinge support 21 and the A-pillar middle inner panel 23 are arranged along the Y direction. The threaded connector 3 provides support for the front door upper hinge support 21 and the A-pillar middle inner panel 23 in the Y direction, and further provides support for the A-pillar upper reinforcement 1 in the Y direction, improving the structural strength of the A-pillar itself.

[0041] In at least one embodiment, a second reinforcing rib 216 is provided on the front door upper hinge support 21. The second reinforcing rib 216 is arranged on the mounting surface connected to the A-pillar middle inner panel 23, improving the strength of this mounting plane.

[0042] In at least one embodiment, the reinforcing part 2 further includes the A-pillar upper hinge reinforcement 22. As Figure 3As shown, there are a first solder joint 221 and a second solder joint 222 between the hinge reinforcement 22 on the A-pillar and the reinforcement 1 on the A-pillar. The hinge reinforcement 22 on the A-pillar is spot-welded to the side of the reinforcement 1 on the A-pillar through the first solder joint 221, and the hinge reinforcement 22 on the A-pillar is spot-welded to the bottom surface of the reinforcement 1 on the A-pillar through the second solder joint 222. Thus, a closed cavity structure is formed between the hinge reinforcement 22 on the A-pillar and the reinforcement 1 on the A-pillar. The hinge reinforcement 22 on the A-pillar and the reinforcement 1 on the A-pillar are arranged along the Y direction, so that the closed cavity structure forms a support for the A-pillar in the X direction.

[0043] In this embodiment, since the front door hinge support 21, the hinge reinforcement 22 on the A-pillar, and the inner middle panel of the A-pillar are all connected to the reinforcement 1 on the A-pillar, therefore, as Figure 6 shown, when a vehicle generates a frontal collision force with a front object, the frontal collision force is first transmitted to the inner middle panel 23 of the A-pillar. Since the front door hinge support 21 is threadedly connected to the inner middle panel 23 of the A-pillar, the frontal collision force is transmitted to the front door hinge support 21 through the threaded connector, and finally transmitted to the reinforcement 1 on the A-pillar through the front door hinge support 21. Since the reinforcement 1 on the A-pillar has a closed cavity structure, the overall frontal collision performance of the vehicle is improved.

[0044] As Figure 7 shown, the CCB (steering support) in this embodiment is installed on the inner middle panel 23 of the A-pillar through the steering support mounting point 4. Therefore, the force transmitted by the CCB is first transmitted to the inner middle panel 23 of the A-pillar, then dispersed and transmitted to the reinforcement 1 on the A-pillar, and then transmitted by the reinforcement 1 on the A-pillar to the door ring area formed by the sill beam, the reinforcement 1 on the A-pillar, and the B-pillar reinforcement assembly to achieve stress dispersion. At the same time, since the steering support mounting point 4 is installed on the closed cavity structure, the collision performance and the modal performance of the CCB mounting point are improved.

[0045] This embodiment also proposes a vehicle body, including the above-mentioned A-pillar reinforcement structure.

[0046] The above description is only for the embodiments of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An A-pillar reinforcement structure, comprising an A-pillar upper reinforcement member, characterized in that: It also includes a reinforcement part, which is connected to the A-pillar upper reinforcement, and a closed cavity structure group is formed between the reinforcement part and the A-pillar upper reinforcement, so that the closed cavity structure group forms an X-direction support for the A-pillar upper reinforcement, wherein the X-direction is based on the automobile coordinate system.

2. The A-pillar reinforcement structure according to claim 1, characterized in that: The reinforcement portion includes a front door upper hinge support, and the closed cavity structure group includes a first cavity structure formed by the front door upper hinge support and the A-pillar upper reinforcement.

3. The A-pillar reinforcement structure according to claim 2, characterized in that: The reinforcement portion also includes an inner panel of the A-pillar, the closed cavity structure group includes a second cavity structure formed by the inner panel of the A-pillar and the upper reinforcement of the A-pillar, and the front door upper hinge support is arranged between the inner panel of the A-pillar and the upper reinforcement of the A-pillar.

4. The A-pillar reinforcement structure according to claim 3, characterized in that: The inner panel in the A-pillar is connected to the upper hinge support of the front door through a threaded connector, and the inner panel in the A-pillar and the upper hinge support of the front door are arranged along the Y direction, so that the threaded connector forms a Y-direction support for the inner panel in the A-pillar and the upper hinge support of the front door, and the Y direction is based on the automobile coordinate system.

5. The A-pillar reinforcement structure according to claim 3, characterized in that: The front door upper hinge support is provided with a first reinforcing rib, and the first reinforcing rib is arranged on the mounting surface where the front door upper hinge support is connected to the inner plate in the A-pillar.

6. The A-pillar reinforcement structure according to claim 3, characterized in that: The front door upper hinge support is provided with a second reinforcing rib, and the second reinforcing rib is arranged at a position where the front door upper hinge support is connected to the flange of the A-pillar upper reinforcement.

7. The A-pillar reinforcement structure according to claim 3, characterized in that: The front door upper hinge support is provided with a weight-reducing hole.

8. The A-pillar reinforcement structure according to claim 1, characterized in that: The reinforcement portion includes an A-pillar upper hinge reinforcement, and the closed cavity structure group includes a third cavity structure formed by the A-pillar upper hinge reinforcement and the A-pillar upper reinforcement.

9. A vehicle body, characterized in that: The invention comprises the A-pillar reinforcement structure as described in any one of claims 1 to 8.

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