B column reinforcing structure and vehicle

Abstract

The utility model provides a B column reinforcing structure and a vehicle. The B column reinforcing structure comprises a cavity formed between an outer plate and an inner plate of a B column and a reinforcing piece arranged in the cavity. The reinforcing piece comprises a plurality of mounting supports arranged at intervals in the length direction of the B column and beam bodies fixedly connected between the mounting supports, and gaps are formed between the beam bodies and the inner wall of the cavity. According to the B column reinforcing structure, the reinforcing piece of the beam body structure is arranged in the cavity of the B column, the beam body is fixedly arranged in the cavity through the installation support, the beam body can play a good supporting and reinforcing role in the height direction of a vehicle, and therefore the force transmission performance of the B column is improved; due to the fact that the gap is reserved between the beam body and the inner wall of the cavity, certain deformation of the outer plate and the inner plate can be allowed when the outer plate and the inner plate are impacted by external force, the collapsing energy absorption effect of the B column is kept, and the B column reinforcing structure scheme with both the force transmission performance and the energy absorption deformation performance is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structure, and in particular to a B-pillar reinforcement structure. In addition, the utility model also relates to a vehicle. Background Art

[0002] In the automobile body frame structure, the B-pillar in the side frame plays a key role in transmitting force and absorbing collision deformation in the vehicle's top pressure safety performance test.

[0003] To ensure the reliability of these two performances, in the existing B-pillar reinforcement structure, it is usually necessary to set a reinforcement sheet metal in the cavity of the B-pillar. However, if the reinforcement sheet metal set in the cavity is too thin, the force transmission and structural reinforcement performance will be poor; if the reinforcement sheet metal is set too thick, it will not only cause the weight of the B-pillar to increase too much, but also have an adverse effect on the performance of the B-pillar in absorbing collision deformation. Utility Model Content

[0004] In view of this, the utility model aims to propose a B-pillar reinforcement structure, so as to provide a B-pillar reinforcement structure solution that takes into account both force transmission performance and energy absorption and deformation performance.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A B-pillar reinforcement structure includes a cavity formed between an outer plate and an inner plate of the B-pillar, and a reinforcement member arranged in the cavity; the reinforcement member includes a plurality of mounting brackets arranged at intervals along the length direction of the B-pillar, and a beam body fixedly connected between the mounting brackets, and a gap is set between the beam body and the inner wall of the cavity.

[0007] Furthermore, the mounting bracket includes a top bracket arranged at the connection between the B-pillar and the upper side beam, and a bottom bracket arranged in the middle of the B-pillar; both the top bracket and the bottom bracket have connecting grooves, and the ends of the beam body are fixedly connected to the connecting grooves.

[0008] Furthermore, the mounting bracket also includes a plurality of middle brackets located between the top bracket and the bottom bracket; the middle bracket is formed with a fixing groove, and the beam body is fixed in the fixing groove.

[0009] Furthermore, side panels are formed on both sides of the middle bracket, first flanges are formed on both sides of the outer panel, second flanges are formed on both sides of the inner panel, and the side panels are clamped between the first flange and the second flange on the same side.

[0010] Furthermore, the side plate is provided with a notch, the side plate is divided into a plurality of side teeth by the notch, a plurality of grooves are formed on the second flange, and each of the side teeth is respectively received in the corresponding groove.

[0011] Furthermore, the side plate is welded and fixedly connected to the first flange and the second flange on the same side.

[0012] Furthermore, the middle bracket includes a first bracket and a second bracket located between the first bracket and the bottom bracket, and the beam body includes a first tube beam and a second tube beam; the first tube beam is fixedly connected between the top bracket and the first bracket, the second tube beam is fixedly connected between the first bracket and the bottom bracket, and the second bracket is arranged in the middle of the second tube beam.

[0013] Furthermore, the reinforcement member also includes a B-pillar reinforcement plate arranged on the side of the outer panel facing the cavity, the B-pillar reinforcement plate is overlapped with the outer panel, and the cavity is formed between the B-pillar reinforcement plate and the inner panel.

[0014] Furthermore, the reinforcement member also includes a side reinforcement frame, which has a side beam section located inside the upper side beam and a B-pillar section located in the cavity, and each of the mounting brackets is fixedly connected to the B-pillar section.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The B-pillar reinforcement structure of the present invention is provided with a reinforcement member of a beam structure in the cavity of the B-pillar, and the beam is fixed in the cavity by means of an installation bracket. The beam can play a good supporting and reinforcing role in the height direction of the vehicle, thereby improving the force transmission performance of the B-pillar; since a gap is left between the beam and the inner wall of the cavity, a certain deformation of the outer panel and the inner panel can be allowed when impacted by an external force, thereby maintaining the crushing energy absorption effect of the B-pillar, thereby providing a B-pillar reinforcement structure solution that takes into account both force transmission performance and energy absorption deformation performance.

[0017] In addition, by setting the top bracket and the bottom bracket, the top and bottom ends of the beam body can be well fixed to the outer plate or inner plate of the B-pillar; the connection groove on the mounting bracket is set to facilitate the insertion of the end of the beam body, and then welding and other means are used to achieve a reliable connection between the beam body and the mounting bracket. By setting the middle bracket, the connection points between the beam body and the inner wall of the cavity can be increased, thereby strengthening the structural stability of the middle part of the beam body; the middle bracket is provided with a fixing groove, and the beam body can be clamped into the fixing groove, increasing the contact area between the beam body and the middle bracket, thereby improving the connection firmness between the middle bracket and the beam body.

[0018] Another object of the present invention is to provide a vehicle, wherein the vehicle adopts the B-pillar reinforcement structure of the present invention. The vehicle of the present invention has the technical advantages of the above-mentioned B-pillar reinforcement structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of 111 where the B-pillar reinforcement structure according to an embodiment of the utility model is located;

[0021] Figure 2 This is a structural schematic diagram of the B-pillar reinforcement structure according to an embodiment of the utility model being located on the inner plate of the B-pillar;

[0022] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the portion indicated by AA;

[0023] Figure 4 for Figure 2 A partial enlarged view of the part shown in B;

[0024] Figure 5 It is a schematic diagram of the connection structure between the outer plate and each reinforcement member according to an embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the assembly structure of the beam body and each mounting bracket according to an embodiment of the utility model;

[0026] Figure 7 for Figure 6 Schematic diagram of the disassembled structure of each component shown.

[0027] Description of reference numerals:

[0028] 1. Upper side beam; 10. Side reinforcement frame; 100. B-pillar section; 101. Side beam section;

[0029] 2. B-pillar; 20. outer panel; 21. B-pillar reinforcement plate; 22. inner panel; 23. cavity; 200. groove; 201. first flange; 202. third flange; 203. second flange;

[0030] 3. Reinforcement; 30. Beam body; 301. First tube beam; 302. Second tube beam; 31. Top bracket; 32. Bottom bracket; 33. Connecting groove; 34. Middle bracket; 341. First bracket; 342. Second bracket; 35. Fixing groove; 36. Side plate; 360. Notch; 361. Side teeth. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] In the description of the present invention, it should be stated that if there are terms indicating orientation or positional relationship such as "up, down, left, right, front, back, inside, outside", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Taking the vehicle described in the present invention as an example, the orientation words such as "up, down, left, right, front, back" used in the embodiments are defined based on the up and down direction (also known as the height direction), the left and right direction (also known as the width direction) and the front and back direction (also known as the length direction) of the vehicle. Specifically, as shown in the drawings, the X direction is the front and back direction of the vehicle, wherein the side to which the arrow points is "front", and the opposite is "back". The Y direction is the left and right direction of the vehicle, wherein the side to which the arrow points is "left", and the opposite is "right". The Z direction is the up and down direction of the vehicle, wherein the side to which the arrow points is "up", and the opposite is "down". “Inside” and “outside” are defined based on the contour of the corresponding components. For example, “inside” and “outside” are defined based on the contour of a vehicle, with the side of the vehicle contour close to the middle of the vehicle being “inside” and the opposite being the case being “outside”.

[0033] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connection", and "connector" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific circumstances. The limiting terms such as "first, second, A, B, C, D" that appear in the description of the present utility model are only used to distinguish similar features of different positions, attributes or uses, so as to achieve the purpose of avoiding ambiguity and confusion in the description, and cannot be understood as indicating or implying relative importance.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] Embodiment 1

[0036] This embodiment relates to a B-pillar reinforcement structure, providing a B-pillar reinforcement structure solution that takes into account both force transmission performance and energy absorption and deformation performance; an exemplary structure thereof is as follows Figures 1 to 5 shown.

[0037] In general, the B-pillar reinforcement structure includes a cavity 23 formed between the outer panel 20 and the inner panel 22 of the B-pillar 2, and a reinforcement member 3 arranged in the cavity 23; the reinforcement member 3 includes a plurality of mounting brackets arranged at intervals along the length direction of the B-pillar 2, and a beam body 30 fixedly connected between the mounting brackets, and a gap is set between the beam body 30 and the inner wall of the cavity 23.

[0038] Specifically, if Figure 5 Combined with Figure 6 , Figure 7 As shown, the mounting bracket of this embodiment includes a top bracket 31 provided at the connection between the B-pillar 2 and the upper side beam 1, and a bottom bracket 32 ​​provided at the middle of the B-pillar 2. The top bracket 31 and the bottom bracket 32 ​​both have a connecting groove 33, and the end of the beam body 30 is fixedly connected in the connecting groove 33. By providing the top bracket 31 and the bottom bracket 32, the top and bottom ends of the beam body 30 can be well fixed to the outer plate 20 or the inner plate 22 of the B-pillar 2; the setting of the connecting groove 33 on the mounting bracket facilitates the insertion of the end of the beam body 30, and then the reliable connection between the beam body 30 and the mounting bracket is realized by welding and other means.

[0039] In addition, the mounting bracket of the present embodiment further includes a plurality of middle brackets 34 located between the top bracket 31 and the bottom bracket 32; and a fixing groove 35 is formed on the middle bracket 34, and the beam body 30 is fixed in the fixing groove 35. By providing the middle bracket 34, the connection points between the beam body 30 and the inner wall of the cavity 23 can be increased, thereby reinforcing the structural stability of the middle part of the beam body 30; the fixing groove 35 is provided on the middle bracket 34, and the beam body 30 can be clamped into the fixing groove 35, increasing the contact area between the beam body 30 and the middle bracket 34, thereby improving the connection firmness between the middle bracket 34 and the beam body 30.

[0040] Preferably, side panels 36 can be formed on both sides of the middle bracket 34; at the same time, first flanges 201 are formed on both sides of the outer panel 20 of the B-pillar 2, and second flanges 203 are formed on both sides of the inner panel 22, and the side panels 36 are clamped between the first flange 201 and the second flange 203 on the same side. By arranging side panels 36 on both sides of the middle bracket 34, when the outer panel 20 and the inner panel 22 are buckled together through their own flanges, the side panels 36 are clamped between the flanges on the corresponding sides, which can greatly improve the connection firmness between the middle bracket 34 and the B-pillar 2, and achieve the effect of effectively increasing the contact area between the mounting bracket and the B-pillar 2.

[0041] Based on the above arrangement, a plurality of notches 360 can be provided on the side plate 36, so that the side plate 36 is divided into a plurality of side teeth 361 by the notches 360; at the same time, a plurality of grooves 200 are formed on the second flange 203 of the present embodiment, and when the side plate 36 is clamped between the first flange 201 and the second flange 203, each side tooth 361 is respectively received in the corresponding groove 200. By providing the groove 200 on the second flange 203, the side teeth 361 are restricted to the groove 200, and the position firmness of the mounting bracket on the B-pillar 2 can be further improved.

[0042] In addition, in this embodiment, in addition to the beam body 30 and the mounting bracket, the reinforcement member 3 also includes a B-pillar reinforcement plate 21 and a side reinforcement frame 10. Specifically, the B-pillar reinforcement plate 21 is arranged on the side of the outer panel 20 facing the cavity 23, the B-pillar reinforcement plate 21 overlaps with the outer panel 20, and the cavity 23 is formed between the B-pillar reinforcement plate 21 and the inner panel 22. The side reinforcement frame 10 has a side beam section 101 located inside the upper side beam 1, and a B-pillar section 100 located in the cavity 23. The outer panel 20, the B-pillar reinforcement plate 21 and the B-pillar section 100 are stacked in sequence from the outside to the inside. The parts of each mounting bracket located in the cavity 23 are preferably welded and fixed to the B-pillar section 100.

[0043] A B-pillar reinforcement plate 21 is arranged in the cavity 23. The B-pillar reinforcement plate 21 and the outer panel 20 are stacked together to improve the overall structural strength of the outer panel 20 and provide a solid foundation for the fixed connection of each mounting bracket. An integrated side frame reinforcement frame 10 is arranged inside the B-pillar 2 and the upper side beam 1 to fasten the upper side beam 1 and the B-pillar 2 together, thereby improving the connection firmness between the B-pillar 2 and the upper side beam 1 and enhancing the overall structural strength of the side frame.

[0044] In this case, the first flange 201, the second flange 203 and the side plate 36 are stacked together and can be fixedly connected by three-layer spot welding. Specifically, at the notch 360 of the side plate 36, the first flange 201, the third flanges 202 on both sides of the B-pillar reinforcement plate 21, and the second flange 203 are stacked together and fixedly connected by three-layer spot welding; at the side teeth 361, the first flange 201, the third flange 202 and the side teeth 361 are stacked and can be fixedly connected by spot welding. Of course, the first flange 201, the third flange 202, the side teeth 361 and the second flange 203 can also be fixedly connected by four-layer spot welding.

[0045] There are of course many options for the specific structural form of the beam body 30. In this embodiment. The middle bracket 34 includes a first bracket 341 and a second bracket 342 located between the first bracket 341 and the bottom bracket 32, and the beam body 30 includes a first tube beam 301 and a second tube beam 302. Among them, the first tube beam 301 is fixedly connected between the top bracket 31 and the first bracket 341, the second tube beam 302 is fixedly connected between the first bracket 341 and the bottom bracket 32, and the second bracket 342 is arranged in the middle of the second tube beam 302. The beam body 30 is set as a tubular structure, which can reduce the weight of the beam body 30. The first tube beam 301 and the second tube beam 302 are respectively set. When the beam body 30 is subjected to excessive force impact, the first tube beam 301 and the second tube beam 302 can be dislocated and deformed at the first bracket 341, thereby improving the energy absorption and buffering effect of the beam body 30. The setting of the second bracket 342 is conducive to improving the structural strength of the middle part of the B-pillar 2.

[0046] In summary, in the B-pillar reinforcement structure of the present embodiment, a reinforcement member 3 of a beam structure is arranged in the cavity 23 of the B-pillar 2, and the beam body 30 is fixed in the cavity 23 by means of an installation bracket. The beam body 30 can play a good supporting and reinforcing role in the height direction of the vehicle, thereby improving the force transmission performance of the B-pillar 2; since a gap is left between the beam body 30 and the inner wall of the cavity 23, the outer panel 20 and the inner panel 22 can be allowed to deform to a certain extent when impacted by an external force, thereby maintaining the crushing energy absorption effect of the B-pillar 2, thereby providing a B-pillar reinforcement structure solution that takes into account both force transmission performance and energy absorption deformation performance.

[0047] Embodiment 2

[0048] This embodiment relates to a vehicle, which adopts the B-pillar reinforcement structure provided in the first embodiment.

[0049] By arranging the beam body 30 of the thermoformed round tube structure in the cavity 23 of the B-pillar 2, the integrity of the cockpit can be ensured in a collision, and the safety of the occupants in the cockpit can be protected. Moreover, the round tube and the thermoformed mounting bracket are welded together by two-way welding, and can be supplied as an assembly component. It only needs to be spot-welded to the B-pillar 2 in the welding workshop, which improves the assembly production efficiency of the vehicle.

[0050] During the spot welding assembly, the mounting bracket is fixedly connected to the inner plate 22, the B-pillar reinforcement plate 21 and the flange of the outer plate 20 by multi-layer spot welding, which enhances the connection strength between the beam body 30 and the B-pillar 2 and avoids the failure of the connection between the B-pillar 2 and the side frame when the vehicle is subjected to top pressure. The gap size between the beam body 30 and the inner wall of the cavity 23 can be flexibly set, preferably set to more than 5mm, to ensure the collapsible energy absorption performance of the B-pillar 2 and avoid the collision noise problem between the beam body 30 and the inner wall.

[0051] By adopting the B-pillar reinforcement structure of the utility model, the matching structural stability between the vehicle systems can be improved, and the NVH (Noise, Vibration, Harshness) performance can also be improved. Compared with the existing structural design of adding reinforced sheet metal, the B-pillar reinforcement structure of this case is lighter, which is conducive to the lightweight design of the whole vehicle; and there is no large area of ​​adhesion between the beam body 30 and the inner wall of the cavity 23, which is conducive to the flow of the electrophoresis liquid, thereby facilitating the smooth progress of the electrophoresis process.

[0052] 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 in the protection scope of the present invention.

Claims

1. A B-pillar reinforcement structure, characterized in that: It comprises a cavity (23) formed between an outer plate (20) and an inner plate (22) of a B-pillar (2), and a reinforcement member (3) arranged in the cavity (23); The reinforcement (3) comprises a plurality of mounting brackets arranged at intervals along the length direction of the B-pillar (2), and a beam body (30) fixedly connected between the mounting brackets, and a gap is provided between the beam body (30) and the inner wall of the cavity (23).

2. The B-pillar reinforcement structure according to claim 1, characterized in that: The mounting bracket comprises a top bracket (31) arranged at the connection between the B-pillar (2) and the upper side beam (1), and a bottom bracket (32) arranged at the middle of the B-pillar (2); the top bracket (31) and the bottom bracket (32) are both provided with a connecting groove (33), and the end of the beam body (30) is fixedly connected to the connecting groove (33).

3. The B-pillar reinforcement structure according to claim 2, characterized in that: The mounting bracket further comprises a plurality of middle brackets (34) located between the top bracket (31) and the bottom bracket (32); a fixing groove (35) is formed on the middle bracket (34), and the beam body (30) is fixed in the fixing groove (35).

4. The B-pillar reinforcement structure according to claim 3, characterized in that: Side plates (36) are formed on both sides of the middle bracket (34), first flanges (201) are formed on both sides of the outer plate (20), and second flanges (203) are formed on both sides of the inner plate (22), and the side plates (36) are clamped between the first flange (201) and the second flange (203) on the same side.

5. The B-pillar reinforcement structure according to claim 4, characterized in that: The side plate (36) is provided with a notch (360), and the side plate (36) is divided into a plurality of side teeth (361) by the notch (360); a plurality of grooves (200) are formed on the second flange (203), and each of the side teeth (361) is respectively received in a corresponding groove (200).

6. The B-pillar reinforcement structure according to claim 4, characterized in that: The side plate (36) is welded and fixedly connected to the first flange (201) and the second flange (203) on the same side.

7. The B-pillar reinforcement structure according to claim 3, characterized in that: The middle bracket (34) comprises a first bracket (341) and a second bracket (342) located between the first bracket (341) and the bottom bracket (32); the beam body (30) comprises a first tube beam (301) and a second tube beam (302); the first tube beam (301) is fixedly connected between the top bracket (31) and the first bracket (341), the second tube beam (302) is fixedly connected between the first bracket (341) and the bottom bracket (32), and the second bracket (342) is arranged in the middle of the second tube beam (302).

8. The B-pillar reinforcement structure according to any one of claims 1 to 7, characterized in that: The reinforcement member (3) further comprises a B-pillar reinforcement plate (21) arranged on the side of the outer panel (20) facing the cavity (23), the B-pillar reinforcement plate (21) being arranged to overlap with the outer panel (20), and the cavity (23) being formed between the B-pillar reinforcement plate (21) and the inner panel (22).

9. The B-pillar reinforcement structure according to any one of claims 1 to 7, characterized in that: The reinforcement member (3) further comprises a side reinforcement frame (10), wherein the side reinforcement frame (10) comprises a side beam section (101) located inside the upper side beam (1), and a B-pillar section (100) located in the cavity (23), and each of the mounting brackets is fixedly connected to the B-pillar section (100).

10. A vehicle, characterized in that: The vehicle adopts the B-pillar reinforcement structure according to any one of claims 1 to 9.

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