Automobile and A column reinforcing structure
By adopting a reinforced structure including an A-pillar outer plate, a hot gas expansion tube beam and a pipe beam connecting bracket on the A-pillar A-pillar, the problem of difficulty in finding a balance between safety performance and lightweight design in the prior art is solved, and a high-strength and lightweight A-pillar design is achieved.
Patent Information
- Application Number
- CN202421007149.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The prior art is difficult to reduce the weight of the body while meeting the safety performance requirements of the A-pillar of the automobile while meeting the lightweight design requirements of the vehicle body.
The A-pillar reinforced structure is adopted, including the A-pillar outer plate, the A-pillar hot gas expansion pipe beam and the pipe beam connection bracket. Through the high bending and torsional strength and yield strength of the hot gas expansion pipe beam, the structural strength of the A-pillar is improved to avoid bending during collision.
It effectively improves the structural strength of the A-pillar of the car, ensures the living space of the passenger compartment, and at the same time reduces the weight of the car body, meets the lightweight design requirements of the car body, and reduces the A-pillar obstacle angle, improving the driver's field of vision.
Smart Images
Figure CN222611244U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile bodies, in particular to an automobile and A-pillar reinforcement structure. Background Art
[0002] With the increasing popularity of automobiles, the safety performance of automobiles has gradually become the focus of people's attention. In order to meet the requirements of side column collision, top cover static pressure test, and 25% small offset collision, it is necessary to ensure that the A-pillar does not bend during a collision, and can resist deformation to the greatest extent to ensure the survival space of the passenger compartment and reduce the collision acceleration to reduce the human body injury value. Therefore, it is necessary to strengthen the structure of the automobile A-pillar. The usual way to improve the strength of the A-pillar is to increase the thickness of the A-pillar structural material and increase the cross-section of the A-pillar. However, the increase in material thickness will increase the mass of the A-pillar assembly and cannot meet the lightweight design requirements of the car body. Increasing the cross-section will affect the obstacle angle of the A-pillar and affect the field of vision. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a car and an A-pillar reinforcement structure, which can reduce the weight of the car body while meeting the safety performance and meet the requirements of lightweight design of the car body.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] An A-pillar reinforcement structure, which includes an A-pillar outer panel, an A-pillar hot-expanded tube beam and a tube beam connecting bracket; the A-pillar outer panel includes an A-pillar connecting plate, and the first side panel and the second side panel are correspondingly connected on both sides of the A-pillar connecting plate, wherein the first side panel is connected to the front windshield or the roof of the automobile, and a first installation cavity is formed between the first side panel and the second side panel; the tube beam connecting bracket is installed in the first installation cavity and fixedly connected to the A-pillar connecting plate, the tube beam connecting bracket includes a bracket connecting plate fixedly connected to the A-pillar connecting plate, and the third side panel and the fourth side panel are correspondingly connected on both sides of the bracket connecting plate, and a second installation cavity is formed between the third side panel and the fourth side panel; the A-pillar hot-expanded tube beam is installed in the second installation cavity, and the two side surfaces of the A-pillar hot-expanded tube beam are correspondingly fixedly connected to the third side panel and the fourth side panel.
[0006] Preferably, the end of the second side panel is bent outward to form a stop edge of the front door opening of the automobile.
[0007] Preferably, the first side panel includes a first side panel portion connected to the A-pillar connecting plate and a second side panel portion bent outward from the end of the first side panel portion, and an angle between the first side panel portion and the second side panel portion is less than 10°.
[0008] Preferably, the bracket connecting plate is fixedly connected to the A-pillar connecting plate by spot welding; and the two side surfaces of the A-pillar hot air expansion tube beam are fixedly connected to the third side plate and the fourth side plate by spot welding.
[0009] Preferably, the A-pillar hot-expanded tubular beam comprises a tubular beam body, an upper connecting portion and a lower connecting portion, and the tube diameters of the upper connecting portion and the lower connecting portion are larger than the tube diameter of the tubular beam body.
[0010] Preferably, the top surface, right side surface, bottom surface and left side surface of the tube beam body are connected end to end to form a tubular structure with a hollow interior, the width of the top surface of the tube beam body is greater than the width of the bottom surface of the tube beam body, and the top surface of the tube beam body is not parallel to the bottom surface of the tube beam body.
[0011] Preferably, the left side and the right side of the tube beam body are correspondingly fitted with the inner sides of the third side plate and the fourth side plate, and the angle between the third side plate and the bracket connecting plate is not equal to the angle between the fourth side plate and the bracket connecting plate.
[0012] An automobile comprises the A-pillar reinforcement structure described in any one of the above items.
[0013] The beneficial technical effect of the utility model is that the above-mentioned A-pillar reinforcement structure includes an A-pillar outer panel, an A-pillar hot-expanded tube beam and a tube beam connecting bracket. Since the hot-expanded tube beam has strong bending and torsional strength and yield strength, the structural strength of the automobile A-pillar assembly can be effectively improved to ensure that the A-pillar does not bend during a collision, so as to resist deformation to the greatest extent to ensure the survival space of the passenger compartment. Compared with the prior art, there is no need to increase the thickness of the A-pillar material, and the weight of the vehicle body can be reduced while meeting the safety performance, meeting the requirements of lightweight vehicle body design; in addition, the cross-sectional size of the A-pillar can also be reduced, which is conducive to reducing the A-pillar obstacle angle, reducing the driver's blind spot, and increasing the flexibility of the A-pillar shape. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the assembly structure of the A-pillar reinforcement structure of the utility model;
[0015] Figure 2 for Figure 1 Cross-sectional view at the AA section;
[0016] Figure 3 It is a structural schematic diagram of the A-pillar hot-expanded tubular beam of the utility model.
[0017] Reference numerals:
[0018] 10. A-pillar outer panel; 11. A-pillar connecting plate; 12. first side panel; 121. first side panel portion; 122. second side panel portion; 13. second side panel; 14. stop edge; 15. first installation cavity; 20. A-pillar hot air expansion tube beam; 21. tube beam body; 211. top surface; 212. bottom surface; 213. left side surface; 214. right side surface; 22. upper connecting portion; 23. lower connecting portion; 30. tube beam connecting bracket; 31. bracket connecting plate; 32. third side panel; 33. fourth side panel; 35. second installation cavity; 40. automobile front door opening. DETAILED DESCRIPTION
[0019] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments.
[0020] The utility model provides an A-pillar reinforcement structure.
[0021] like Figure 1 , 2 As shown, in one embodiment of the utility model, the A-pillar reinforcement structure includes an A-pillar outer panel 10, an A-pillar hot-expanded tube beam 20, and a tube beam connecting bracket 30; the A-pillar outer panel 10 includes an A-pillar connecting plate 11, and the two sides of the A-pillar connecting plate 11 are correspondingly connected to a first side panel 12 and a second side panel 13, wherein the first side panel 12 is connected to the front windshield or the roof of the automobile, and a first installation cavity 15 is formed between the first side panel 12 and the second side panel 13; the tube beam connecting bracket 30 is installed in the first installation cavity 15 and is fixedly connected to the A-pillar connecting plate 11, the tube beam connecting bracket 30 includes a bracket connecting plate 31 fixedly connected to the A-pillar connecting plate 11, the two sides of the bracket connecting plate 31 are correspondingly connected to the third side plate 32 and the fourth side plate 33, and a second installation cavity 35 is formed between the third side plate 32 and the fourth side plate 33; the A-pillar hot-expanded tube beam 20 is installed in the second installation cavity 35, and the two side surfaces of the A-pillar hot-expanded tube beam 20 are correspondingly fixedly connected to the third side plate 32 and the fourth side plate 33.
[0022] The A-pillar hot-expanded tube beam 20 is formed by hot-pressing 22MnB5 steel by bending tubes. The strength after forming can reach 1500MPa. The bending, torsional and yield strengths are very high, which can effectively improve the structural strength of the automobile A-pillar assembly and ensure that the A-pillar does not bend during a collision, so as to resist deformation to the greatest extent and protect the survival space of the passenger compartment.
[0023] like Figure 3As shown, in a preferred embodiment of the utility model, the A-pillar hot-expanded tubular beam 20 includes a tubular beam body 21, an upper connecting portion 22 and a lower connecting portion 23, and the tube diameters of the upper connecting portion 22 and the lower connecting portion 23 are larger than the tube diameter of the tubular beam body 21.
[0024] In the embodiment shown in the drawings, the top surface 211, the right side surface 214, the bottom surface 212, and the left side surface 213 of the tube beam body 21 are connected end to end to form a hollow tubular structure, the width of the top surface 211 is smaller than the width of the bottom surface 212, and the top surface 211 is not parallel to the bottom surface 212. Of course, in other embodiments, the width of the top surface 211 may also be greater than or equal to the width of the bottom surface 212; the top surface 211 may also be parallel to the bottom surface 212.
[0025] In the embodiment shown in the drawings, the left side 213 and the right side 214 of the tube beam body 21 are correspondingly fitted with the inner sides of the third side plate 32 and the fourth side plate 33, and the angle between the third side plate 32 and the bracket connecting plate 31 is different from the angle between the fourth side plate 33 and the bracket connecting plate 31. Of course, in other embodiments, the angle between the third side plate 32 and the bracket connecting plate 31 may also be equal to the angle between the fourth side plate 33 and the bracket connecting plate 31.
[0026] In the embodiment shown in the drawings, the bracket connecting plate 31 is connected and fixed to the A-pillar connecting plate 11 by welding; the left side 213 and the right side 214 of the A-pillar hot-expanded tube beam 20 are fixedly connected to the third side plate 32 and the fourth side plate 33 by welding. Of course, in other embodiments, other connection methods such as riveting and screw connection can also be used to connect and fix the bracket connecting plate 31 to the A-pillar connecting plate 11; other connection methods such as riveting and screw connection can also be used to fix the left side 213 and the right side 214 of the A-pillar hot-expanded tube beam 20 to the third side plate 32 and the fourth side plate 33.
[0027] like Figure 1 , 2 As shown, in a preferred embodiment of the present utility model, the end of the second side panel 13 is bent outward to form a stop edge 14 of the front door opening 40 of the automobile.
[0028] like Figure 1 , 2As shown, in a preferred embodiment of the utility model, the first side plate 12 includes a first side plate portion 121 connected to the A-pillar connecting plate 11 and a second side plate portion 122 bent outward from the end of the first side plate portion 121, and the angle θ between the first side plate portion 121 and the second side plate portion 122 is less than 10°. In the embodiment shown in the drawings, the angle θ is 8°; of course, in other embodiments, the angle θ can also be 6°, 9° or other degrees.
[0029] The utility model also provides a car, which comprises the above-mentioned A-pillar reinforcement structure.
[0030] The beneficial effects of the utility model are as follows: the A-pillar reinforcement structure of the utility model includes an A-pillar outer panel, an A-pillar hot-expanded tube beam and a tube beam connecting bracket. Since the hot-expanded tube beam has strong bending and torsional strength and yield strength, the structural strength of the automobile A-pillar assembly can be effectively improved to ensure that the A-pillar does not bend during a collision, so as to resist deformation to the greatest extent to ensure the survival space of the passenger compartment. Compared with the prior art, there is no need to increase the thickness of the A-pillar material, and the weight of the vehicle body can be reduced while meeting the safety performance, thereby meeting the requirements of lightweight vehicle body design. In addition, the cross-sectional size of the A-pillar can also be reduced, which is conducive to reducing the A-pillar obstacle angle, reducing the driver's blind spot, and increasing the flexibility of the A-pillar shape.
[0031] The above description is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments, and all equivalent changes or modifications made within the scope of the claims should fall within the protection scope of the utility model.
Claims
1. An A-pillar reinforcement structure, characterized in that: The invention comprises an A-pillar outer panel (10), an A-pillar hot-expanded tube beam (20) and a tube beam connecting bracket (30); the A-pillar outer panel (10) comprises an A-pillar connecting plate (11), and the two sides of the A-pillar connecting plate (11) are correspondingly connected to a first side panel (12) and a second side panel (13), wherein the first side panel (12) is connected to a front windshield or a roof of a vehicle, and a first installation cavity (15) is formed between the first side panel (12) and the second side panel (13); the tube beam connecting bracket (30) is installed in the first installation cavity (15) and is connected to the A-pillar connecting plate (11). The tubular beam connection bracket (30) comprises a bracket connection plate (31) fixedly connected to the A-pillar connection plate (11); the two sides of the bracket connection plate (31) are correspondingly connected to a third side plate (32) and a fourth side plate (33); a second installation cavity (35) is formed between the third side plate (32) and the fourth side plate (33); the A-pillar hot-expanded tubular beam (20) is installed in the second installation cavity (35); the two side surfaces (213, 214) of the A-pillar hot-expanded tubular beam (20) are correspondingly fixedly connected to the third side plate (32) and the fourth side plate (33).
2. The A-pillar reinforcement structure according to claim 1, characterized in that: The end of the second side plate (13) is bent outward to form a stop edge (14) of the front door opening (40) of the automobile.
3. The A-pillar reinforcement structure according to claim 2, characterized in that: The first side plate (12) comprises a first side plate portion (121) connected to the A-pillar connecting plate (11) and a second side plate portion (122) bent outward from the end of the first side plate portion (121), and an angle between the first side plate portion (121) and the second side plate portion (122) is less than 10°.
4. The A-pillar reinforcement structure according to claim 1, characterized in that: The bracket connection plate (31) is connected and fixed to the A-pillar connection plate (11) by welding; and the two side surfaces (213, 214) of the A-pillar hot air expansion tube beam (20) are fixedly connected to the third side plate (32) and the fourth side plate (33) by welding.
5. The A-pillar reinforcement structure according to any one of claims 1 to 4, characterized in that: The A-pillar hot-expanded tubular beam (20) comprises a tubular beam body (21), an upper connecting portion (22) and a lower connecting portion (23); the diameters of the upper connecting portion (22) and the lower connecting portion (23) are greater than the diameter of the tubular beam body (21).
6. The A-pillar reinforcement structure according to claim 5, characterized in that: The top surface (211), the right side surface (214), the bottom surface (212), and the left side surface (213) of the tube beam body (21) are connected end to end to form a tubular structure with a hollow interior; the width of the top surface (211) is smaller than the width of the bottom surface (212), and the top surface (211) and the bottom surface (212) are not parallel.
7. The A-pillar reinforcement structure according to claim 6, characterized in that: The left side surface (213) and the right side surface (214) of the tube beam body (21) are correspondingly fitted with the inner sides of the third side plate (32) and the fourth side plate (33), and the angle between the third side plate (32) and the bracket connecting plate (31) is not equal to the angle between the fourth side plate (33) and the bracket connecting plate (31).
8. A car, characterized in that: The invention comprises an A-pillar reinforcement structure as described in any one of claims 1 to 7.