Side wall reinforcing structure and vehicle
By designing A-pillar and B-pillar reinforcement and side-pillar reinforcement plates to form a cavity structure in the side-circle reinforcement structure of the vehicle body, the problems of insufficient strength and weight increase in the prior art are solved, and higher fatigue durability and torsional rigidity are achieved, and the body weight is reduced.
Patent Information
- Application Number
- CN202422326561.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In the prior art, the bonding arrangement of the reinforcement plates of A and B columns leads to insufficient strength, and the thickness or number of reinforcement plates is required to increase, resulting in an increase in the weight of the side circumference assembly, and there is a weak area of stress, which is prone to stress concentration and fracture.
A side-circle reinforcement structure is designed, and the first and second cavity are formed in the inner and outer directions through the A-pillar reinforcement member and the side-circle reinforcement plate to form a complete force transmission structure to enhance the fatigue durability and torsional rigidity of the vehicle body.
It achieves better resistance to alternating stress, enhances the fatigue durability and torsional rigidity of the car body, reduces local stress concentration, improves the forward and small bias bump performance of the car body, and reduces weight by 10-15% on the premise of achieving the same safety performance, which is conducive to the lightweight of the whole vehicle.
Smart Images
Figure CN222959901U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle body strengthening structures, and more specifically, relates to a side wall strengthening structure and a vehicle. Background Art
[0002] An automobile body is sequentially provided with an A-pillar, a B-pillar and a C-pillar from front to back. The structures of the A-pillar and the B-pillar both include an inner panel, a reinforcing plate and an outer panel arranged from inside to outside. The A-pillar is connected to the front engine compartment, the front floor, the front enclosure, the sill beam, the roof, etc., and the B-pillar is connected to the roof, the sill beam, etc. The A-pillar and the B-pillar are important supporting and stress-bearing members. The strength and stiffness of the A-pillar and the B-pillar are not only closely related to safety, but also highly correlated with NVH and BSR.
[0003] Due to the limited self-strength of the A-pillar and the B-pillar, a large amount of impact force cannot be effectively eliminated during a collision. Therefore, reinforcing plates are respectively arranged in the areas of the side wall reinforcing plate corresponding to the A-pillar and the B-pillar to increase the strength and stiffness of the A-pillar and the B-pillar. Since the reinforcing plates are arranged in a manner of being attached to the side wall reinforcing plate, if sufficient strength and stiffness are to be ensured, the thickness or the number of the reinforcing plates needs to be increased. However, after the thickness or the number of the reinforcing plates is increased, the weight of the side wall assembly is easily increased, which is not conducive to the realization of the lightweight of the whole vehicle. In addition, since the existing A-pillar reinforcing plate and B-pillar reinforcing plate are separately arranged, a communicating cavity cannot be formed between the A-pillar reinforcing plate and the B-pillar reinforcing plate, so that a stress-weak area is formed in the interval area between the A-pillar reinforcing plate and the B-pillar reinforcing plate. During a side collision of the vehicle, fracture phenomena caused by stress concentration are extremely likely to occur in the stress-weak area. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a side wall strengthening structure and a vehicle, aiming at solving the problem in the prior art that the reinforcing plates are attached to the side wall reinforcing plate, resulting in insufficient strength of the A-pillar and the B-pillar after reinforcement, and the need to increase the thickness of the reinforcing plates, thus leading to an excessive weight of the side wall assembly.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] In a first aspect, a side wall strengthening structure is provided, including:
[0007] A side wall reinforcing plate;
[0008] An A-pillar strengthening member, connected to the side wall reinforcing plate, and forming a first cavity with the side wall reinforcing plate in the inner and outer directions; and
[0009] A B-pillar strengthening member, connected to the rear part of the A-pillar strengthening member and connected to the side wall reinforcing plate, and forming a second cavity with the side wall reinforcing plate in the inner and outer directions.
[0010] In combination with the first aspect, in a possible implementation, the A-pillar reinforcement includes:
[0011] An A-pillar reinforcement area, spaced from the side wall reinforcement plate in the inner and outer directions; and
[0012] An A-pillar connection area, disposed at an angle to the A-pillar reinforcement area, at least two A-pillar connection areas are provided and are respectively connected to opposite sides of the A-pillar reinforcement area, the A-pillar connection area is connected to the side wall reinforcement plate, and encloses the first cavity with the A-pillar reinforcement area and the side wall reinforcement plate.
[0013] In combination with the first aspect, in a possible implementation, the B-pillar reinforcement includes:
[0014] A B-pillar reinforcement area, spaced from the side wall reinforcement plate in the inner and outer directions; and
[0015] A B-pillar connection area, disposed at an angle to the B-pillar reinforcement area, at least two B-pillar connection areas are provided and are respectively connected to opposite sides of the B-pillar reinforcement area, the B-pillar connection areas are respectively connected to the side wall reinforcement plate and the A-pillar reinforcement member, and enclose the second cavity with the B-pillar reinforcement area and the side wall reinforcement plate.
[0016] In combination with the first aspect, in a possible implementation, the B-pillar reinforcement includes a first reinforcement portion and a second reinforcement portion connected in sequence from top to bottom, the first reinforcement portion is connected to the rear of the A-pillar reinforcement member, and the second reinforcement portion and the side wall reinforcement plate are spaced apart in the inner and outer directions to form the second cavity.
[0017] In combination with the first aspect, in a possible implementation, the second reinforcement portion includes:
[0018] A B-pillar reinforcement plate, located below the A-pillar reinforcement member and connected to the side wall reinforcement plate, the B-pillar reinforcement plate and the side wall reinforcement plate form the second cavity in the inner and outer directions; and
[0019] A reinforcing pipe, with the top connected to the A-pillar reinforcement member and the bottom connected to the B-pillar reinforcement plate.
[0020] In combination with the first aspect, in a possible implementation, the first reinforcement portion has a fixing area protruding away from the side wall reinforcement plate, and the reinforcing pipe is connected to the fixing area.
[0021] In combination with the first aspect, in a possible implementation, the B-pillar reinforcement plate is recessed toward the side wall reinforcement plate to form a mounting groove adapted to the reinforcing pipe, and the bottom of the reinforcing pipe is disposed in the mounting groove.
[0022] In combination with the first aspect, in a possible implementation manner, the side panel reinforcement plate includes:
[0023] A side enclosure body, the A-pillar reinforcement is connected to the side enclosure body and forms the first cavity with the side enclosure body in the inner and outer directions; and
[0024] The B-pillar reinforcement plate is connected to the side enclosure body and is located below the A-pillar reinforcement member. The B-pillar reinforcement member and the B-pillar reinforcement plate form the second cavity in the inner and outer directions.
[0025] In combination with the first aspect, in a possible implementation manner, the A-pillar reinforcement includes a main reinforcement area and an extension area connected to a front end of the main reinforcement area, and the extension area extends downward from the main reinforcement area.
[0026] The beneficial effect of the side reinforcement structure provided by the utility model is that: compared with the prior art, the A-pillar reinforcement and the B-pillar reinforcement of the side reinforcement structure of the utility model respectively form a first cavity and a second cavity with the side reinforcement plate in the inner and outer directions, which can better resist alternating stress and enhance the fatigue durability of the vehicle body. Due to the formation of the first cavity and the second cavity, compared with the solution in the prior art that the A-pillar reinforcement and the B-pillar reinforcement are both fitted and connected to the side reinforcement plate, not only the strength is increased, but also the moment of inertia is larger, and the torsional rigidity of the vehicle body is improved. In addition, because the B-pillar reinforcement is connected to the rear of the A-pillar reinforcement, not only the side reinforcement plate has no weak force area, but also the A-pillar reinforcement and the B-pillar reinforcement form a complete force transmission structure. After being acted upon by an external force, a part of the external force is transmitted to the vehicle body parts along the side reinforcement plate, and the other part is transmitted to the vehicle body parts along the A-pillar reinforcement and the B-pillar reinforcement, so that the entire side reinforcement structure is more evenly stressed, the vehicle body head-on collision and small offset collision performance are increased, and the problem of local application concentration is reduced. Compared with the solution in the prior art of attaching the reinforcement component to the side panel reinforcement plate, the solution in the utility model can reduce the weight of the entire side panel reinforcement structure by 10-15% while achieving the same safety performance, which is conducive to achieving lightweight of the entire vehicle.
[0027] In a second aspect, an embodiment of the utility model further provides a vehicle, comprising any one of the side panel reinforcement structures described above.
[0028] The beneficial effect of the vehicle provided by the utility model is that: compared with the prior art, the vehicle of the utility model adopts the above-mentioned side reinforcement structure, and the A-pillar reinforcement and the B-pillar reinforcement respectively form the first cavity and the second cavity with the side reinforcement plate in the inner and outer directions, which can better resist the alternating stress and enhance the fatigue durability of the vehicle body. Due to the formation of the first cavity and the second cavity, compared with the solution in the prior art that the A-pillar reinforcement and the B-pillar reinforcement are both fitted and connected to the side reinforcement plate, not only the strength is increased, but also the moment of inertia is larger, and the torsional rigidity of the vehicle body is improved. In addition, because the B-pillar reinforcement is connected to the rear of the A-pillar reinforcement, not only the side reinforcement plate has no weak force area, but also the A-pillar reinforcement and the B-pillar reinforcement form a complete force transmission structure. After being acted upon by external force, a part of the external force is transmitted to the vehicle body parts along the side reinforcement plate, and the other part is transmitted to the vehicle body parts along the A-pillar reinforcement and the B-pillar reinforcement, so that the entire side reinforcement structure is more evenly stressed, the vehicle body head-on collision and small offset collision performance are increased, and the problem of local application concentration is reduced. Compared with the solution in the prior art of attaching the reinforcement component to the side panel reinforcement plate, the solution in the utility model can reduce the weight of the entire side panel reinforcement structure by 10-15% while achieving the same safety performance, which is conducive to achieving lightweight of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 A schematic diagram of the structure of the side enclosure reinforcement structure provided by an embodiment of the utility model;
[0031] Figure 2 for Figure 1 The cross-sectional structure diagram along the AA line;
[0032] Figure 3 for Figure 1 The cross-sectional structure diagram of the middle BB line;
[0033] Figure 4 for Figure 1 Cross-sectional structural diagram of the center CC line;
[0034] Figure 5 for Figure 4 A partial enlarged view of the D portion in FIG.
[0035] Figure 6 for Figure 4 A partial enlarged view of part E in FIG.
[0036] In the figure: 1. Side wall reinforcement plate; 101. Side wall main body; 102. B-pillar reinforcement plate; 2. A-pillar reinforcement member; 201. Main reinforcement area; 202. Extension area; 203. A-pillar reinforcement area; 204. A-pillar connection area; 205. First cavity; 3. B-pillar reinforcement member; 301. First reinforcement part; 3011. Fixing area; 302. Reinforcement pipe; 303. B-pillar reinforcement plate; 3031. B-pillar reinforcement area; 3032. B-pillar connection area; 3033. Installation groove; 304. Second cavity. Detailed implementation manners
[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, 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 only used to explain the present utility model and are not used to limit the present utility model.
[0038] In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., are all used to distinguish different objects and are not used to describe a specific order. In the claims, the description and the drawings of the present utility model, the orientation terms "upper" and "lower" are the same as the up and down directions of the vehicle body, the terms "left" and "right" are the same as the left and right directions of the vehicle body, the terms "front" and "rear" are the same as the front and rear directions of the vehicle body, and the term "inner side" is the side adjacent to the passenger compartment in the left and right directions of the vehicle body, and vice versa is the "outer side". Unless otherwise stated, the remaining orientation terms, such as "vertical", "clockwise", "counterclockwise", etc., indicate the orientation and position relationship based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model. In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using the terms "fixed connection" or "fixedly connected", should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrated as one body, and being fixed connected through other devices or elements. In the claims, the description and the above-mentioned drawings of the present utility model, when using terms such as "including", "having" and their variants, are intended to mean "including but not limited to".
[0039] Please refer to Figures 1 to 6The side reinforcement structure and the vehicle provided by the utility model are now described. The side reinforcement structure includes a side reinforcement plate 1, an A-pillar reinforcement 2 and a B-pillar reinforcement 3; the A-pillar reinforcement 2 is connected to the side reinforcement plate 1 and forms a first cavity 205 with the side reinforcement plate 1 in the inner and outer directions; the B-pillar reinforcement 3 is connected to the rear of the A-pillar reinforcement 2 and is connected to the side reinforcement plate 1, and the B-pillar reinforcement 3 and the side reinforcement plate 1 form a second cavity 304 in the inner and outer directions.
[0040] Compared with the prior art, the side reinforcement structure provided by the utility model has the A-pillar reinforcement 2 and the B-pillar reinforcement 3 of the side reinforcement structure of the utility model respectively forming the first cavity 205 and the second cavity 304 with the side reinforcement plate 1 in the inner and outer directions, which can better resist the alternating stress and enhance the fatigue durability of the vehicle body. Due to the formation of the first cavity 205 and the second cavity 304, compared with the solution in the prior art that the A-pillar reinforcement 2 and the B-pillar reinforcement 3 are both fitted and connected to the side reinforcement plate 1, not only the strength is increased, but also the moment of inertia is larger, and the torsional rigidity of the vehicle body is improved. In addition, because the B-pillar reinforcement 3 is connected to the rear of the A-pillar reinforcement 2, the A-pillar reinforcement 2 and the B-pillar reinforcement 3 form a complete force transmission structure. After being acted upon by an external force, a part of the external force is transmitted to the vehicle body parts along the side reinforcement plate 1, and the other part is transmitted to the vehicle body parts along the A-pillar reinforcement 2 and the B-pillar reinforcement 3, so that the entire side reinforcement structure is more evenly stressed, the vehicle body head-on collision and small offset collision performance are increased, and the problem of local application concentration is reduced. Compared with the solution in the prior art of attaching the reinforcement component to the side panel reinforcement plate 1, the solution in the utility model can reduce the weight of the entire side panel reinforcement structure by 10-15% while achieving the same safety performance, which is conducive to achieving lightweight of the entire vehicle.
[0041] Optionally, the B-pillar reinforcement 3 is butted against the A-pillar reinforcement 2 , or the B-pillar reinforcement 3 is fittedly connected to the A-pillar reinforcement 2 .
[0042] Optionally, the dimensions of the first cavity 205 and the second cavity 304 in the inner and outer directions are greater than 5 mm.
[0043] In some embodiments, see Figure 2 The A-pillar reinforcement 2 includes an A-pillar reinforcement area 203 and an A-pillar connection area 204. The A-pillar reinforcement area 203 and the side reinforcement plate 1 are spaced apart in the inner and outer directions; the A-pillar connection area 204 and the A-pillar reinforcement area 203 are arranged at an angle. There are at least two A-pillar connection areas 204, which are respectively connected to the opposite sides of the A-pillar reinforcement area 203. The A-pillar connection area 204 is connected to the side reinforcement plate 1, and is enclosed with the A-pillar reinforcement area 203 and the side reinforcement plate 1 to form a first cavity 205.
[0044] The A-pillar reinforcement area 203 and the A-pillar connection area 204 are set at an angle, and are connected to the side reinforcement plate 1 through the A-pillar connection area 204, so as to form a first cavity 205. This structure not only increases the strength of the A-pillar reinforcement 2, but also has a simple structure, so that the opposite sides of the A-pillar reinforcement area 203 are evenly stressed.
[0045] Optionally, the A-pillar reinforcement area 203 is located at a side of the A-pillar connection area 204 close to the side reinforcement plate 1 , or the A-pillar reinforcement area 203 is located at a side of the A-pillar connection area 204 away from the side reinforcement plate 1 .
[0046] In some embodiments, see Figure 1 and Figure 4 The B-pillar reinforcement 3 includes a B-pillar reinforcement area 3031 and a B-pillar connection area 3032. The B-pillar reinforcement area 3031 and the side reinforcement plate 1 are spaced apart in the inner and outer directions; the B-pillar connection area 3032 is arranged at an angle to the B-pillar reinforcement area 3031. There are at least two B-pillar connection areas 3032, which are respectively connected to the opposite sides of the B-pillar reinforcement area 3031. The B-pillar connection areas 3032 are respectively connected to the side reinforcement plate 1 and the A-pillar reinforcement 2, and are enclosed with the B-pillar reinforcement area 3031 and the side reinforcement plate 1 to form a second cavity 304.
[0047] The B-pillar reinforcement area 3031 and the B-pillar connection area 3032 are arranged at an angle, and are connected to the side reinforcement plate 1 through the B-pillar connection area 3032, thereby forming the first cavity 205, and the B-pillar connection area 3032 is also connected to the A-pillar reinforcement 2. This structure not only increases the strength of the B-pillar reinforcement 3, but also has a simple structure, so that the opposite sides of the B-pillar reinforcement area 3031 are evenly stressed.
[0048] Specifically, the B-pillar reinforcement area 3031 and the B-pillar connection area 3032 are an integrated component, the upper part of the B-pillar connection area 3032 is connected to the A-pillar reinforcement 2, and the lower part is connected to the side reinforcement plate 1. The B-pillar connection area 3032 can be connected to the A-pillar reinforcement 2 and then connected by welding, or the B-pillar connection area 3032 can extend to the A-pillar reinforcement 2 and be connected to the A-pillar reinforcement 2 by welding or screwing.
[0049] In some embodiments, see Figure 1 The B-pillar reinforcement 3 includes a first reinforcement portion 301 and a second reinforcement portion connected in sequence from top to bottom. The first reinforcement portion 301 is connected to the rear portion of the A-pillar reinforcement 2, and the second reinforcement portion and the side reinforcement plate 1 are spaced apart in the inner and outer directions to form a second cavity 304.
[0050] The first reinforcing part 301 is attached to the A-pillar reinforcing member 2 and connected to the A-pillar reinforcing member 2, increasing the contact area with the A-pillar reinforcing member 2 and improving the firmness of the connection. The second reinforcing part and the side wall reinforcing plate 1 form a second cavity 304. On the one hand, it improves the strength of the B-pillar reinforcing member 3, and on the other hand, it increases the force transmission path, accelerating the transmission of external force to other parts of the vehicle body after being stressed and avoiding the phenomenon of local stress concentration.
[0051] In some embodiments, please refer to Figure 1 and Figures 4 to 6 , the second reinforcing part includes a B-pillar reinforcing plate 303 and a reinforcing tube 302. The B-pillar reinforcing plate 303 is located below the A-pillar reinforcing member 2 and connected to the side wall reinforcing plate 1. The B-pillar reinforcing plate 303 and the side wall reinforcing plate 1 form a second cavity 304 in the inner and outer directions; the top of the reinforcing tube 302 is connected to the A-pillar reinforcing member 2, and the bottom is connected to the B-pillar reinforcing plate 303.
[0052] Since the reinforcing tube 302 is a tubular member, its strength and stiffness are more superior compared to a plate-like member. Moreover, after the vehicle body is subjected to an external force, the entire side wall of the reinforcing tube 302 can transmit force, quickly transmitting the external force from the A-pillar reinforcing member 2 to the B-pillar reinforcing plate 303. In addition, the strength of the reinforcing tube 302 is higher than that of a plate-like structure, which can not only reinforce the local area of the B-pillar to prevent the upper section of the B-pillar from bending under top pressure, but also increase the strength, torsional stiffness and fatigue performance of the B-pillar, and improve the side impact safety performance of the vehicle body.
[0053] It should be noted that in the white body manufacturing process, after welding the side wall to the vehicle body frame, the entire side wall assembly needs to be subjected to a painting operation, and the key step of the painting operation is electrophoresis. If the second reinforcing part is all of a plate-like structure, a closed structure will be formed after the B-pillar reinforcing member 3 is connected to the A-pillar reinforcing member 2, which cannot ensure the smooth flow of the electrophoresis liquid and affects the production efficiency of the whole vehicle. In addition, if the second reinforcing part is completely set as a tubular structure, although the strength is improved, the overall cost will increase.
[0054] Optionally, the length of the reinforcing tube 302 is 15-40% of the length of the B-pillar. Because the upper 15-40% area of the B-pillar is the weak area under top pressure, the function of the reinforcing tube 302 is to strengthen this area. If the length of the reinforcing tube 302 is less than this range, it cannot completely cover the weak area, and if the length is greater than this range (for example, extending to the lower end of the B-pillar), it will cause performance redundancy.
[0055] Optionally, the reinforcing tube 302 and the side wall reinforcing plate 1 are spaced apart in the inner and outer directions, or the reinforcing tube 302 is attached to the side wall reinforcing plate 1.
[0056] In some embodiments, please refer to Figure 5 , the first reinforcing part 301 has a fixing area 3011 protruding away from the side wall reinforcing plate 1, and the reinforcing tube 302 is connected to the fixing area 3011.
[0057] The fixing area 3011 protrudes toward the side away from the side reinforcement plate 1, forming a gap between the side reinforcement plate 1. On the one hand, a buffer space is formed to prevent local force from causing vibration of the entire side reinforcement plate 1, thereby improving NVH performance. On the other hand, when the reinforcement tube 302 and the fixing area 3011 are welded, phenomena such as welding leaks can be avoided, which may cause damage to the side reinforcement plate 1.
[0058] In some embodiments, see Figure 6 The B-pillar reinforcement plate 303 is recessed toward the side close to the side panel reinforcement plate 1 to form an installation groove 3033 adapted to the reinforcement tube 302 , and the bottom of the reinforcement tube 302 is disposed in the installation groove 3033 .
[0059] The reinforcing tube 302 is embedded in the installation groove 3033, which increases the contact area between the reinforcing tube 302 and the B-pillar reinforcing plate 303 and improves the firmness of the connection. In addition, the installation groove 3033 can limit the B-pillar reinforcing plate 303, which not only improves the installation efficiency, but also ensures the stability of the reinforcing tube 302 after being subjected to external force.
[0060] In some embodiments, see Figure 1 The side enclosure reinforcement plate 1 includes a side enclosure body 101 and a B-pillar reinforcement plate 102; the A-pillar reinforcement 2 is connected to the side enclosure body 101 and forms a first cavity 205 with the side enclosure body 101 in the inner and outer directions; the B-pillar reinforcement plate 102 is connected to the side enclosure body 101 and is located below the A-pillar reinforcement 2; the B-pillar reinforcement 3 and the B-pillar reinforcement plate 102 form a second cavity 304 in the inner and outer directions.
[0061] In this embodiment, a B-pillar reinforcement plate 102 is added to increase the strength of the B-pillar and improve the safety performance of the B-pillar.
[0062] Optionally, the B-pillar reinforcement plate 102 is attached to the side enclosure body 101 .
[0063] It should be noted that the B-pillar reinforcement plate can be used to increase the strength of the B-pillar according to the actual situation of the vehicle. For example, for a vehicle with a gross vehicle weight greater than 2500KG, in order to meet the safety performance requirements and ensure that the top pressure is greater than four times the vehicle weight, a B-pillar reinforcement plate 102 is added. For a vehicle with a gross vehicle weight less than 2500KG, the B-pillar reinforcement plate 102 design can be cancelled.
[0064] Optionally, the material and thickness of the B-pillar reinforcement plate 102 are consistent with those of the side panel reinforcement plate 1, and the material thickness range is 1.0-2.5 mm.
[0065] In some embodiments, see Figure 1The A-pillar reinforcement 2 includes a main reinforcement area 201 and an extension area 202 connected to the front end of the main reinforcement area 201 , and the extension area 202 extends downward from the main reinforcement area 201 .
[0066] The extension area 202 can strengthen the lower part of the A-pillar, avoiding the problem that the existing A-pillar reinforcement components only strengthen the upper part of the A-pillar and fail to take care of the lower part, resulting in a weak stress area in the lower part of the A-pillar. This embodiment enables the vehicle body to better transmit the stress to the entire vehicle body frame under a head-on collision condition, prevents the stress concentration in the lower part of the A-pillar from causing deformation, and better ensures the safety of the occupants.
[0067] Optionally, the extension area 202 covers 10-20% of the area of the lower section of the A-pillar.
[0068] Based on the same inventive concept, the utility model also provides a vehicle, which includes any one of the above-mentioned side wall reinforcement structures.
[0069] The vehicle provided by the utility model adopts the above-mentioned side reinforcement structure, and the A-pillar reinforcement 2 and the B-pillar reinforcement 3 respectively form the first cavity 205 and the second cavity 304 with the side reinforcement plate 1 in the inner and outer directions, which can better resist the alternating stress and enhance the fatigue durability of the vehicle body. Due to the formation of the first cavity 205 and the second cavity 304, compared with the solution in the prior art that the A-pillar reinforcement 2 and the B-pillar reinforcement 3 are both fitted and connected to the side reinforcement plate 1, not only the strength is increased, but also the moment of inertia is larger, and the torsional rigidity of the vehicle body is improved. In addition, because the B-pillar reinforcement 3 is connected to the rear of the A-pillar reinforcement 2, not only the side reinforcement plate 1 has no weak force area, but also the A-pillar reinforcement 2 and the B-pillar reinforcement 3 form a complete force transmission structure. After being acted upon by external force, a part of the external force is transmitted to the vehicle body parts along the side reinforcement plate 1, and the other part is transmitted to the vehicle body parts along the A-pillar reinforcement 2 and the B-pillar reinforcement 3, so that the whole side reinforcement structure is more evenly stressed, the vehicle body frontal collision and small offset collision performance are increased, and the problem of local application concentration is reduced. Compared with the solution in the prior art of attaching the reinforcement component to the side panel reinforcement plate 1, the solution in the utility model can reduce the weight of the entire side panel reinforcement structure by 10-15% while achieving the same safety performance, which is conducive to achieving lightweight of the entire vehicle.
[0070] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. Side reinforcement structure, characterized in that: include: Side reinforcement plate (1); An A-pillar reinforcement (2) connected to the side panel reinforcement plate (1) and forming a first cavity (205) with the side panel reinforcement plate (1) in the inner and outer directions; and The B-pillar reinforcement (3) is connected to the rear of the A-pillar reinforcement (2) and is connected to the side reinforcement plate (1); the B-pillar reinforcement (3) and the side reinforcement plate (1) form a second cavity (304) in the inner and outer directions.
2. The side wall reinforcement structure according to claim 1, characterized in that: The A-pillar reinforcement (2) comprises: The A-pillar reinforcement area (203) is spaced apart from the side reinforcement plate (1) in the inner and outer directions; and The A-pillar connection area (204) is arranged at an angle with the A-pillar reinforcement area (203), at least two A-pillar connection areas (204) are provided, and are respectively connected to opposite sides of the A-pillar reinforcement area (203), the A-pillar connection area (204) is connected to the side reinforcement plate (1), and is enclosed with the A-pillar reinforcement area (203) and the side reinforcement plate (1) to form the first cavity (205).
3. The side wall reinforcement structure according to claim 1, characterized in that: The B-pillar reinforcement (3) comprises: The B-pillar reinforcement area (3031) is spaced apart from the side reinforcement plate (1) in the inner and outer directions; and The B-pillar connection area (3032) is arranged at an angle with the B-pillar reinforcement area (3031), at least two B-pillar connection areas (3032) are provided, and are respectively connected to the opposite sides of the B-pillar reinforcement area (3031), and the B-pillar connection areas (3032) are respectively connected to the side reinforcement plate (1) and the A-pillar reinforcement (2), and are enclosed with the B-pillar reinforcement area (3031) and the side reinforcement plate (1) to form the second cavity (304).
4. The side wall reinforcement structure according to claim 1, characterized in that: The B-pillar reinforcement (3) comprises a first reinforcement portion (301) and a second reinforcement portion which are sequentially connected from top to bottom, wherein the first reinforcement portion (301) is connected to the rear portion of the A-pillar reinforcement (2), and the second reinforcement portion and the side reinforcement plate (1) are spaced apart in the inner and outer directions to form the second cavity (304).
5. The side wall reinforcement structure according to claim 4, characterized in that: The second reinforcement portion comprises: A B-pillar reinforcement plate (303) is located below the A-pillar reinforcement member (2) and is connected to the side panel reinforcement plate (1), wherein the B-pillar reinforcement plate (303) and the side panel reinforcement plate (1) form the second cavity (304) in the inner and outer directions; and The reinforcement tube (302) is connected to the A-pillar reinforcement (2) at the top and connected to the B-pillar reinforcement plate (303) at the bottom.
6. The side wall reinforcement structure according to claim 5, characterized in that: The first reinforcement portion (301) has a fixing area (3011) protruding away from the side reinforcement plate (1), and the reinforcement tube (302) is connected to the fixing area (3011).
7. The side wall reinforcement structure according to claim 5, characterized in that: The B-pillar reinforcement plate (303) is recessed toward a side close to the side panel reinforcement plate (1) to form a mounting groove (3033) adapted for the reinforcement tube (302), and the bottom of the reinforcement tube (302) is arranged in the mounting groove (3033).
8. The side panel reinforcement structure according to claim 1, characterized in that: The side reinforcement plate (1) comprises: A side enclosure body (101), the A-pillar reinforcement (2) being connected to the side enclosure body (101) and forming the first cavity (205) with the side enclosure body (101) in the inner and outer directions; and The B-pillar reinforcement plate (102) is connected to the side enclosure body (101) and is located below the A-pillar reinforcement (2); the B-pillar reinforcement (3) and the B-pillar reinforcement plate (102) form the second cavity (304) in the inner and outer directions.
9. The side panel reinforcement structure according to claim 1, characterized in that: The A-pillar reinforcement (2) comprises a main reinforcement area (201) and an extension area (202) connected to the front end of the main reinforcement area (201), and the extension area (202) extends downward from the main reinforcement area (201).
10. A vehicle, characterized in that A side panel reinforcement structure according to any one of claims 1 to 9.