Column A stiffening beam, side wall front inner plate assembly and vehicle

Abstract

The utility model relates to the technical field of vehicle body structures, in particular to an A column stiffening beam, a side wall front inner plate assembly and a vehicle. The A column stiffening beam comprises a tubular beam and a patch plate, and the tubular beam is a hot air expansion tube of a variable cross-section structure. The patch plate is arranged in the tubular beam and is of a tubular structure, and the outer wall of the patch plate is attached to the inner wall of the tubular beam in a matched mode. The pipe beam is designed into the hot air expansion pipe with the variable cross-section structure, so that the number of avoiding holes formed for avoiding part of mounting clip spaces of a side air curtain, a wiring harness, an interior trim and the like can be reduced, and the problem that in the related technology, due to the fact that too many avoiding holes are formed, the structural strength and rigidity of the pipe beam are affected can be solved; the patch plate is additionally arranged at the position where the change rate of the section of the tubular beam is large, the problem that the strength performance of part of the area of the tubular beam is weakened due to the change of the section of the tubular beam is solved, the mode of increasing the thickness of the whole hot air expansion tube in the related technology is replaced, and therefore light weight of products is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, and particularly relates to an A-pillar reinforcing beam, a front inner side panel assembly and a vehicle. Background Art

[0002] In the rapid development process of today's new energy vehicle industry, as consumers' requirements for the cruising range of electric vehicles continue to increase, the application of new processes and lightweight materials has become a key research direction and development focus in the industry; the reason is that new processes and lightweight materials can significantly reduce the overall weight of the vehicle on the premise of ensuring the strength and safety performance of the vehicle, thereby improving the power performance of the vehicle, enhancing the cruising range of electric vehicles, reducing fuel consumption, and reducing exhaust pollution. Experiments have shown that when the vehicle weight is reduced by 100 kg, the power consumption is reduced by 0.32 - 0.36 kwh / 100 km. With the same cruising range, the battery capacity can be reduced by 1.6 - 2 kwh. With the same battery capacity, the cruising range can be increased by 12.4 km. Currently, due to environmental protection and energy conservation needs, the lightweight of vehicles has become a trend in the development of the world's automotive industry.

[0003] In the body structure, the A-pillar reinforcing beam usually adopts a tubular beam structure. When the existing tubular beam structure is used in the A-pillar area, the cross-sectional size of the A-pillar reinforcing beam in the A-pillar area needs to be variable due to the need to avoid the installation bolts of structures such as wiring harnesses, side air curtains, and interior trims. There will be a wall thickness thinning area. When a 25% offset collision test by the China Insurance Research Institute is carried out, stress concentration is likely to occur in the wall thickness thinning area, which is not conducive to achieving the collision performance target. In addition, if the form of variable cross-section avoidance is not adopted, but the overall wall thickness of the tubular beam is increased and avoidance holes are opened on the tubular beam, it is not conducive to the lightweight design requirements of the whole vehicle, and too many avoidance holes will also reduce the strength of the structure. Summary of the Utility Model

[0004] One of the purposes of the utility model is to provide an A-pillar reinforcing beam to solve the above technical problems in the prior art; the second purpose is to provide a front inner side panel assembly; the third purpose is to provide a vehicle.

[0005] In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

[0006] An A-pillar reinforcing beam, which comprises:

[0007] A tubular beam, the tubular beam is a hot gas-expanded tube with a variable cross-section structure; and

[0008] A patch panel, which is arranged inside the tubular beam, the patch panel is a tubular structure, and the outer wall of the patch panel fits and adheres to the inner wall of the tubular beam.

[0009] Through the above technical means, the hot gas expansion tube with a variable cross-section structure designed for the pipe beam can reduce the number of avoidance holes opened to avoid the installation clip spaces of some side air curtains, wire harnesses, interior trims, etc., and can reduce the problem in the related art that the structural strength and stiffness of the pipe beam are affected due to the opening of too many avoidance holes; by adding patch plates at the places where the cross-section change rate of the pipe beam is large, the problem of weakened strength performance in some areas of the pipe beam caused by the cross-section change of the pipe beam is made up for, instead of the way of increasing the thickness of the entire hot gas expansion tube in the related art, thereby improving the lightweight of the product.

[0010] Further, the patch plate is arranged in the area where the cross-sectional area change rate of the pipe beam is greater than or equal to 6%.

[0011] Through the above technical means, by adding a patch plate at the place where the cross-section changes greatly in the middle part of the A-pillar reinforcement beam, the weak area of the structural strength of the pipe beam can be strengthened specifically. While making up for the weakened structural performance caused by the cross-section change, it can avoid affecting the lightweight of the product due to excessive use of reinforcement plates.

[0012] Further, partition adhesives are arranged at both ends of the pipe beam, and the partition adhesives are used to block the openings at the ends of the pipe beam.

[0013] Through the above technical means, the partition adhesives can block both ends of the pipe beam. When the A-pillar reinforcement beam is applied to a vehicle, during the vehicle driving process, air can be prevented from forming a rapidly flowing air current inside the pipe beam to cause wind noise, and the noise generated during the vehicle driving process can be effectively reduced.

[0014] Further, partition mounting surfaces are formed at both ends of the pipe beam, and the partition adhesives are connected to the partition mounting surfaces.

[0015] Through the above technical means, the setting of the partition mounting surfaces provides a bearing space for the installation of the partition adhesives. The partition adhesives can be connected to the partition mounting surfaces by means of bonding or interference fit, improving the fixing effect.

[0016] Further, at least one of a lapping surface, a positioning hole and a rivet nut is arranged on the pipe beam.

[0017] Through the above technical means, the lapping surface is used as an assembly surface when the pipe beam is assembled with other structures in the vehicle. While increasing the connection area, it can be used as a welding surface; the positioning hole can be used for positioning during the welding process of the pipe beam and other structures of the vehicle; the rivet nut arranged on the A-pillar reinforcement beam can be used for installing the side air curtain of the vehicle.

[0018] A front inner panel assembly of a side panel, which includes an A-pillar reinforcement plate, a rear reinforcement plate of the side inner panel, a B-pillar reinforcement member, and an A-pillar reinforcement beam. The front end of the A-pillar reinforcement beam is connected to the top end of the A-pillar reinforcement plate, the rear end of the A-pillar reinforcement beam is connected to the front end of the rear reinforcement plate of the side inner panel, and the rear part of the A-pillar reinforcement beam is connected to the top end of the B-pillar reinforcement member.

[0019] By the above technical means, an A-pillar reinforcement beam is provided in the front inner panel assembly of this structure. The A-pillar reinforcement beam is set as a hot gas expansion tube, and a tube beam patch plate is arranged in the hot gas expansion tube. The A-pillar reinforcement tube is set with a variable cross-section, reducing the opening of various avoidance holes on the tube beam, improving the vehicle's performance in offset collisions and the overall vehicle stiffness, and also contributing to the realization of the vehicle's lightweight goal.

[0020] Further, a first lapping surface, a second lapping surface, and a third lapping surface are arranged on the tube beam. The A-pillar reinforcement plate is connected in cooperation with the first lapping surface, the B-pillar reinforcement member is connected in cooperation with the second lapping surface, and the rear reinforcement plate of the side inner panel is connected in cooperation with the third lapping surface.

[0021] By the above technical means, the first lapping surface serves as the assembly surface when the tube beam is assembled with the A-pillar reinforcement plate, the second lapping surface serves as the assembly surface when the tube beam is assembled with the B-pillar reinforcement member, and the third lapping surface serves as the assembly surface when the tube beam is assembled with the rear reinforcement plate of the side inner panel. While increasing the connection area, it can also be used as a welding surface.

[0022] Further, the A-pillar reinforcement plate includes an upper A-pillar reinforcement plate and a lower A-pillar reinforcement plate which are connected to each other. The front end of the A-pillar reinforcement beam is connected to the top end of the upper A-pillar reinforcement plate. A first flange edge is arranged on the upper A-pillar reinforcement plate, and a second flange edge is arranged on the lower A-pillar reinforcement plate. The first flange edge is connected in cooperation with the second flange edge.

[0023] By the above technical means, the first flange edge arranged on the upper A-pillar reinforcement plate and the second flange edge arranged on the lower A-pillar reinforcement plate can realize the effective connection of the A-pillar reinforcement plate, making the A-pillar reinforcement plate form a structurally stable overall structure.

[0024] Further, the A-pillar reinforcement beam is connected to the A-pillar reinforcement plate, the A-pillar reinforcement beam is connected to the side inner panel, and the A-pillar reinforcement beam is connected to the B-pillar reinforcement member by MIG welding.

[0025] Through the above technical means, in the welding process of MIG welding, inert gas is continuously blown out from the welding nozzle to completely cover the welding part, so that the weld bead is not oxidized by oxygen in the air. Also, due to a large current concentrated in the welding part, heat can be very quickly and locally concentrated to achieve fusion welding, resulting in a very small amount of deformation. Moreover, in the welding process using MIG welding, the welding electrode is automatically and continuously fed, so there is no weld bead joint and continuous welding operation can be carried out, with high efficiency.

[0026] Furthermore, positioning holes are provided on the A-pillar reinforcement plate, the inner side panel, and the B-pillar reinforcement member.

[0027] Through the above technical means, the positioning holes are used for positioning when the A-pillar reinforcement plate, the inner side panel, the B-pillar reinforcement member are welded and connected to the A-pillar reinforcement beam and the vehicle.

[0028] Furthermore, the front inner side panel assembly of the side wall further includes an upper side beam of the B-pillar inner panel, and the upper side beam of the B-pillar inner panel is connected to the A-pillar reinforcement beam.

[0029] Through the above technical means, the connection between the upper side beam of the B-pillar inner panel and the A-pillar reinforcement beam can effectively improve the stiffness of the whole vehicle.

[0030] A vehicle includes a front inner side panel assembly of the side wall.

[0031] Advantages of the present utility model:

[0032] (1) Designing the tube beam as a hot gas-expanded tube with a variable cross-section structure can reduce the number of avoidance holes opened to avoid the installation clip spaces of some side air curtains, wire harnesses, interior trims, etc., and can reduce the problem that the structural strength and stiffness of the tube beam are affected due to opening too many avoidance holes in the related art.

[0033] (2) By adding a patch plate at the place where the cross-section change rate of the tube beam is large, the problem of weakened strength performance in some areas of the tube beam caused by the cross-section change of the tube beam is compensated, replacing the method of increasing the wall thickness of the whole hot gas-expanded tube in the related art, thereby improving the lightweight of the product. Description of the drawings

[0034] Figure 1 The side view of the A-pillar reinforcement beam provided by the embodiment of the present utility model Figure 1 ;

[0035] Figure 2 is Figure 1 the A-A sectional view in

[0036] Figure 3 is Figure 1 the B-B sectional view in

[0037] Figure 4 isFigure 1 C-C sectional view in

[0038] Figure 5 is Figure 1 D-D sectional view in

[0039] Figure 6 Top view of the A-pillar reinforcing beam provided by the embodiment of the present utility model;

[0040] Figure 7 is Figure 6 E-E sectional view in

[0041] Figure 8 Side view of the A-pillar reinforcing beam provided by the embodiment of the present utility model Figure 2 ;

[0042] Figure 9 Structure diagram of the front inner panel assembly of the side wall provided by the embodiment of the present utility model;

[0043] Figure 10 Structure diagram of the upper A-pillar reinforcement plate in the front inner panel assembly of the side wall provided by the embodiment of the present utility model;

[0044] Figure 11 Structure diagram of the lower A-pillar reinforcement plate in the front inner panel assembly of the side wall provided by the embodiment of the present utility model;

[0045] Figure 12 Structure diagram of the rear reinforcement plate of the inner side wall in the front inner panel assembly of the side wall provided by the embodiment of the present utility model;

[0046] Figure 13 is Figure 9 F-F sectional view in

[0047] Wherein,

[0048] 1. A-pillar reinforcing beam; 101. Pipe beam; 102. Patch panel; 103. Partition glue; 104. Partition mounting surface; 105. Rivet nut; 106. First positioning hole; 107. Second positioning hole; 108. First lapping surface; 109. Second lapping surface; 110. Third lapping surface; 111. Sixth lapping surface;

[0049] 2. Upper A-pillar reinforcement plate; 201. First flange edge; 202. Mounting through hole; 203. Fourth lapping surface; 204. Third positioning hole; 205. Fourth positioning hole;

[0050] 3. Lower A-pillar reinforcement plate; 301. Second flange edge;

[0051] 4. B-pillar reinforcement; 401. Fifth lapping surface; 402. Seventh positioning hole; 403. Eighth positioning hole;

[0052] 5. Rear reinforcement plate of inner side panel; 501. Third flange edge; 502. Fifth positioning hole; 503. Sixth positioning hole;

[0053] 6. Upper side beam of inner B-pillar; 601. Seventh lapping surface. Specific implementation mode

[0054] The following will illustrate the implementation mode of the present utility model with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be understood that the preferred embodiments are only for illustrating the present utility model, rather than for limiting the protection scope of the present utility model.

[0055] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in its actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0056] As Figures 1 - 8 shown, this embodiment proposes an A-pillar reinforcement beam 1, which mainly includes a tube beam 101 and a patch panel 102. The tube beam 101 is a hot gas expansion tube with a variable cross-section structure; the patch panel 102 is arranged inside the tube beam 101, the patch panel 102 is a tubular structure, and the outer wall of the patch panel 102 is fitted and attached to the inner wall of the tube beam 101.

[0057] Through the above technical means, on the one hand, designing the tube beam 101 as a hot gas expansion tube with a variable cross-section structure can reduce the number of avoidance holes opened to avoid the installation clip spaces of some side air curtains, wire harnesses, interior trims, etc., and can reduce the problem that the structural strength and stiffness of the tube beam 101 are affected due to opening too many avoidance holes in the related art; on the other hand, by adding a patch panel 102 at the place where the cross-section change rate of the tube beam 101 is large, the problem that the strength performance of some areas of the tube beam 101 is weakened due to the cross-section change of the tube beam 101 is compensated, instead of the method of increasing the material thickness of the entire hot gas expansion tube in the related art, thereby improving the lightweight of the product.

[0058] Specifically, the main structure of the A-pillar reinforcement beam 1 is the tube beam 101, Figure 1 is the front projection view of the side of the tube beam 101, and its structure as a whole presents an arched structure. Along its extending direction, four positions are successively intercepted to obtain the A-A cross-sectional view as shown in Figure 2 shown, the B-B cross-sectional view as shown inFigure 3 The sectional view taken along line B-B shown, such as Figure 4 the sectional view taken along line C-C shown, and such as Figure 5 the sectional view taken along line D-D shown, it can be seen that the sectional shape and sectional area of the pipe beam 101 vary continuously at different positions. The cross-section of the pipe beam 101 is a quadrilateral structure. Patch plates 102 are provided at the positions of the A-A section, C-C section, and D-D section. A patch plate 102 is provided at the position of the B-B section. The patch plate 102 can achieve the effect of increasing the wall thickness of the A-pillar reinforcement beam 1 at the corresponding position, and improve the strength and stiffness of the A-pillar reinforcement beam 1. From Figure 3 it can be seen that the shape of the patch plate 102 is conformally set with the inner wall surface of the pipe beam 101 in the area where it is provided. Furthermore, the complete matching and fitting of the patch plate 102 and the structure of the pipe beam 101 can be realized, and the effect of structural reinforcement can be achieved. Moreover, the structure of the patch plate 102 is a closed ring structure, which can greatly improve its own structural strength and the reinforcement effect on the pipe beam 101. The connection methods between the pipe beam 101 and the patch plate 102 include but are not limited to welding, interference connection, and integral molding.

[0059] In some embodiments, the patch plate 102 is provided in an area where the change rate of the cross-sectional area of the pipe beam 101 is greater than or equal to 6%. By adding a patch plate 102 at the position where the cross-section changes greatly in the middle part of the A-pillar reinforcement beam 1, the structurally weak area of the pipe beam 101 can be reinforced specifically. While compensating for the weakening of the structural performance caused by the cross-sectional change, it can avoid excessive use of reinforcement plates and affect the lightweight of the product.

[0060] In some embodiments, partition adhesives 103 are provided at both ends of the pipe beam 101, and the partition adhesives 103 are used to seal the openings at both ends of the pipe beam 101. The partition adhesives 103 can seal both ends of the pipe beam 101. When the A-pillar reinforcement beam 1 is applied to a vehicle, during the vehicle's driving, air can be prevented from forming a rapidly flowing air current inside the pipe beam 101 to cause wind noise, and effectively reduce the noise generated during the vehicle's driving. The material of the partition adhesives 103 can be various types of adhesives, and its materials include but are not limited to rubber or resin.

[0061] Preferably, partition mounting surfaces 104 are formed at both ends of the tube beam 101, and the partition adhesive 103 is connected to the partition mounting surfaces 104. The provision of the partition mounting surfaces 104 provides a bearing space for the installation of the partition adhesive 103, and the partition adhesive 103 can be connected to the partition mounting surfaces 104 by means of bonding or interference fit. Optionally, the partition mounting surfaces 104 are located on the inner wall surfaces at both ends of the tube beam 101. At this time, the partition adhesive 103 can be directly inserted into the opening of the tube beam 101, so that the outer periphery of the partition adhesive 103 is in full contact with the inner wall of the tube beam 101. Optionally, the partition mounting surfaces 104 are located on the outer wall surfaces at both ends of the tube beam 101. At this time, the partition adhesive 103 can be in the shape of a cap and can be directly covered on the end of the tube beam 101, so that the partition adhesive 103 covers the outer wall of the tube beam 101. Optionally, the partition mounting surfaces 104 are located on the inner wall surfaces and the outer wall surfaces at both ends of the tube beam 101 at the same time, so that a part of the partition adhesive 103 can be directly inserted into the opening of the tube beam 101 to make the partition adhesive 103 in full contact with the inner wall of the tube beam 101, and the other part directly covers the outer wall surface of the tube beam 101, so that the partition adhesive 103 is connected to the inner and outer walls of the tube beam 101 at the same time, improving the fixing effect.

[0062] In some embodiments, at least one of a lapping surface, a positioning hole, and a rivet nut 105 is provided on the tube beam 101. The lapping surface is used as an assembly surface when the tube beam 101 is assembled with other structures in the vehicle. For example, it can be used as an assembly surface for the tube beam 101 to be respectively assembled with structures such as the A-pillar reinforcement plate, the B-pillar reinforcement member 4, the rear reinforcement plate 5 of the inner side panel, or the upper side beam 6 of the B-pillar inner panel, etc. It can be used as a welding surface while increasing the connection area. The positioning hole can be used for positioning during the welding process of the tube beam 101 and other structures of the vehicle. The positioning holes on the tube beam 101 at least include a first positioning hole 106 as the main positioning hole and a second positioning hole 107 as the secondary positioning hole. The main positioning hole is used to control two directions, preferably a round hole, and the secondary positioning hole is used to control one direction, preferably a long hole. The rivet nut 105 provided on the A-pillar reinforcement beam 1 can be used for installing the side air curtain of the vehicle.

[0063] As Figures 9 - 13 shown, this embodiment proposes a front inner side panel assembly of a vehicle, which includes an A-pillar reinforcement plate, a rear reinforcement plate 5 of the inner side panel, a B-pillar reinforcement member 4, and the A-pillar reinforcement beam 1 of the foregoing embodiment of the present application. The structure of the A-pillar reinforcement beam 1 is as Figures 1 - 8 shown. As Figure 9 shown, the front end of the A-pillar reinforcement beam 1 is connected to the top end of the A-pillar reinforcement plate, the rear end of the A-pillar reinforcement beam 1 is connected to the front end of the rear reinforcement plate 5 of the inner side panel, and the rear part of the A-pillar reinforcement beam 1 is connected to the top end of the B-pillar reinforcement member 4.

[0064] Compared with the existing structure, an A-pillar reinforcing beam 1 is provided in the front inner panel assembly of the side wall of this structure. By setting the A-pillar reinforcing beam 1 as a hot gas expansion tube and arranging a tube beam 101 patch panel 102 inside the hot gas expansion tube, the A-pillar reinforcing tube is set to have a variable cross-section, reducing the need to open various avoidance holes on the tube beam 101, improving the vehicle's performance in offset collisions and the overall vehicle stiffness, and also contributing to achieving the vehicle's lightweight goal.

[0065] It should be noted that in this application document, when the A-pillar reinforcing beam and the front inner panel assembly of the side wall are applied to a vehicle, the vehicle is used as the direction calibration reference. Specifically, in the length direction of the vehicle, the front of the vehicle is defined as the front, and the rear of the vehicle is defined as the rear; in the height direction of the vehicle, the top of the vehicle is defined as the upper or top, and the bottom of the vehicle is defined as the lower or bottom; in the width direction of the vehicle, the side close to the vehicle center is defined as the inner side, and the side far from the vehicle center is defined as the outer side.

[0066] In some embodiments, a first lapping surface 108, a second lapping surface 109, and a third lapping surface 110 are provided on the tube beam 101. The A-pillar reinforcing plate is connected in cooperation with the first lapping surface 108, the B-pillar reinforcing member 4 is connected in cooperation with the second lapping surface 109, and the rear reinforcing plate 5 of the inner side wall is connected in cooperation with the third lapping surface 110.

[0067] Among them, the first lapping surface 108 serves as the assembly surface when the tube beam 101 is assembled with the A-pillar reinforcing plate, the second lapping surface 109 serves as the assembly surface when the tube beam 101 is assembled with the B-pillar reinforcing member 4, and the third lapping surface 110 serves as the assembly surface when the tube beam 101 is assembled with the rear reinforcing plate 5 of the inner side wall. While increasing the connection area, it can also be used as a welding surface.

[0068] In some embodiments, the A-pillar reinforcing plate includes an upper A-pillar reinforcing plate 2 and a lower A-pillar reinforcing plate 3 that are connected to each other. The front end of the A-pillar reinforcing beam 1 is connected to the top end of the upper A-pillar reinforcing plate 2. A first flange 201 is provided on the upper A-pillar reinforcing plate 2, and a second flange 301 is provided on the lower A-pillar reinforcing plate 3. The first flange 201 is connected in cooperation with the second flange 301.

[0069] The first flange 201 provided on the upper A-pillar reinforcing plate 2 and the second flange 301 provided on the lower A-pillar reinforcing plate 3 can achieve the effective connection of the A-pillar reinforcing plate, making the A-pillar reinforcing plate form a structurally stable overall structure. The first flange 201 and the second flange 301 are preferably connected by spot welding.

[0070] Optionally, mounting through holes 202 are provided on the upper A-pillar reinforcing plate 2, and the mounting through holes 202 can be used to mount the front hood hinge of the vehicle.

[0071] Optionally, the upper reinforcement plate 2 of the A-pillar is provided with a fourth lap joint surface 203 for mating connection with the first lap joint surface 108. The fourth lap joint surface 203 is a three-sided structure, specifically located at the top, inner side, and bottom of the upper reinforcement plate 2 of the A-pillar, forming a U-shaped structure. The first lap joint surface 108 is also a three-sided structure formed at the top, inner side, and bottom of the pipe beam 101. The two can cooperate to form a good covering and limiting effect. The connection between the first lap joint surface 108 and the fourth lap joint surface 203 preferably adopts the MIG welding method. The upper reinforcement plate 2 of the A-pillar is provided with a third positioning hole 204 as the main positioning hole and a fourth positioning hole 205 as the secondary positioning hole for positioning during welding connection with the A-pillar reinforcement beam 1 and the lower reinforcement plate 3 of the A-pillar.

[0072] In some embodiments, the front end of the rear reinforcement plate 5 of the inner panel of the side wall is provided with a third flange 501 for connecting with the third lap joint surface 110 at the rear end of the pipe beam 101 of the A-pillar reinforcement beam 1 by MIG welding. The rear end of the rear reinforcement plate 5 of the inner panel of the side wall can be connected to other structures of the vehicle by spot welding. Optionally, the rear reinforcement plate 5 of the inner panel of the side wall is provided with a fifth positioning hole 502 as the main positioning hole and a sixth positioning hole 503 as the secondary positioning hole for positioning during welding connection between the rear reinforcement plate 5 of the inner panel of the side wall and the A-pillar reinforcement beam 1 and the vehicle.

[0073] In some embodiments, the upper end of the B-pillar reinforcement 4 is provided with a fifth lap joint surface 401 for connecting with the second lap joint surface 109 on the pipe beam 101 of the A-pillar reinforcement beam 1 by MIG welding. The lower end of the B-pillar reinforcement 4 can be connected to the vehicle by the method of friction drill screw (FDS). Optionally, the B-pillar reinforcement 4 is provided with a seventh positioning hole 402 as the main positioning hole and an eighth positioning hole 403 as the secondary positioning hole for positioning during welding connection between the B-pillar reinforcement 4 and the A-pillar reinforcement beam 1 and the vehicle.

[0074] In the above embodiments, the A-pillar reinforcement beam 1 is connected to the A-pillar reinforcement plate, the A-pillar reinforcement beam 1 is connected to the inner panel of the side wall, and the A-pillar reinforcement beam 1 is connected to the B-pillar reinforcement 4 by MIG welding. In the MIG welding process, inert gas is continuously blown out from the welding nozzle to completely cover the welding part, so that the weld bead is not oxidized by oxygen in the air. Also, because a large current is concentrated at the welding part, heat can be very quickly and locally concentrated to cause fusion, so the amount of deformation generated is very small. Moreover, in the MIG welding process, the welding electrode is automatically and continuously fed, so there is no weld bead joint and continuous welding operation can be carried out, with high efficiency.

[0075] In some embodiments, the front inner panel assembly of the side wall further includes an upper side beam 6 of the B-pillar inner panel, and the upper side beam 6 of the B-pillar inner panel is connected to the A-pillar reinforcement beam 1. The connection between the upper side beam 6 of the B-pillar inner panel and the A-pillar reinforcement beam 1 can effectively improve the rigidity of the whole vehicle. A sixth lap joint surface 111 can be arranged on the inner side surface of the A-pillar reinforcement beam 1, and a seventh lap joint surface 601 can be arranged on the outer side surface of the upper side beam 6 of the B-pillar inner panel. The sixth lap joint surface 111 is connected to the seventh lap joint surface 601 in a matching manner, and preferably, the MIG welding method is adopted for the connection between the sixth lap joint surface 111 and the seventh lap joint surface 601.

[0076] The embodiment of the present application also provides a vehicle, which includes the front inner panel assembly of the side wall provided in the foregoing embodiment. For the other specific structures and technical effects of the front inner panel assembly of the side wall in the vehicle in the embodiment of the present application, reference can be made to the specific records of the foregoing embodiments, and details are not described herein again. Compared with the existing vehicles, in the front inner panel assembly of the side wall of the vehicle in this embodiment, an A-pillar reinforcement beam 1 is arranged. By setting the pipe beam 101 of the A-pillar reinforcement beam 1 as a hot gas expansion pipe with a variable cross-section and arranging a patch plate 102 in the hot gas expansion pipe, various avoidance holes are reduced on the pipe beam 101, and the performance during offset collision and the rigidity of the whole vehicle are improved; by respectively arranging an upper A-pillar reinforcement plate 2 and a rear reinforcement plate 5 of the side wall inner panel at the front end and the rear end of the A-pillar reinforcement beam 1 and connecting them by MIG welding; arranging a B-pillar reinforcement member 4 in the middle section of the vehicle body and connecting the B-pillar reinforcement member 4 to the A-pillar reinforcement beam 1 by MIG welding; connecting the A-pillar reinforcement beam 1 to the upper side beam 6 of the B-pillar inner panel by MIG welding, a whole frame structure is finally obtained. The lower A-pillar reinforcement plate 3 and the B-pillar reinforcement member 4 can also be simultaneously connected to structures such as the lower door sill of the vehicle, and thus a closed ring structure can be formed, improving the integrity and strength of the structure and ensuring the offset collision performance and overall rigidity of the A-pillar.

[0077] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

[0078] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless an order of performance is expressly stated. It should also be understood that additional or alternative steps may be used.

[0079] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, a first element, component, region, layer, or section discussed below may be referred to as a second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0080] The foregoing are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An A-pillar reinforcement beam, characterized in that, Comprising: A tube beam, which is a hot gas expansion tube with a variable cross-section structure; And A patch plate, which is arranged inside the tube beam. The patch plate is a tubular structure, and the outer wall of the patch plate fits and adheres to the inner wall of the tube beam.

2. The A-pillar reinforcing beam according to claim 1, characterized in that, The patch plate is arranged in a region where the cross-sectional area change rate of the tube beam is greater than or equal to 6%.

3. The A-pillar reinforcing beam according to claim 1, characterized in that, Partition adhesives are arranged at both ends of the tube beam, and the partition adhesives are used to seal the openings at the ends of the tube beam.

4. The A-pillar reinforcing beam according to claim 3, wherein Partition mounting surfaces are formed at both ends of the tube beam, and the partition adhesives are connected to the partition mounting surfaces.

5. The A-pillar reinforcement beam according to claim 4, characterized in that At least one of a lapping surface, a positioning hole, and a blind rivet nut is arranged on the tube beam.

6. A front inner panel assembly of a side wall, characterized in that, Comprising an A-pillar reinforcement plate, a rear reinforcement plate of the inner side panel, a B-pillar reinforcement member, and an A-pillar reinforcement beam as described in any one of claims 1-5. The front end of the A-pillar reinforcement beam is connected to the top end of the A-pillar reinforcement plate, the rear end of the A-pillar reinforcement beam is connected to the front end of the rear reinforcement plate of the inner side panel, and the rear part of the A-pillar reinforcement beam is connected to the top end of the B-pillar reinforcement member.

7. The inner front side panel assembly according to claim 6, characterized in that, A first lapping surface, a second lapping surface, and a third lapping surface are arranged on the tube beam. The A-pillar reinforcement plate is connected in cooperation with the first lapping surface, the B-pillar reinforcement member is connected in cooperation with the second lapping surface, and the rear reinforcement plate of the inner side panel is connected in cooperation with the third lapping surface.

8. The inner front side panel assembly according to claim 6, characterized in that, The A-pillar reinforcement plate includes an upper A-pillar reinforcement plate and a lower A-pillar reinforcement plate that are connected to each other. The front end of the A-pillar reinforcement beam is connected to the top end of the upper A-pillar reinforcement plate. A first flange edge is arranged on the upper A-pillar reinforcement plate, and a second flange edge is arranged on the lower A-pillar reinforcement plate. The first flange edge is connected in cooperation with the second flange edge.

9. The inner front side panel assembly according to claim 6, wherein, The A-pillar reinforcement beam is connected to the A-pillar reinforcement plate, the A-pillar reinforcement beam is connected to the inner side panel, and the A-pillar reinforcement beam is connected to the B-pillar reinforcement member by MIG welding.

10. The side inner front panel assembly according to claim 9, characterized in that, Positioning holes are formed on the A-pillar reinforcement plate, the inner side panel, and the B-pillar reinforcement member.

11. The inner front side panel assembly according to claim 9, characterized in that, The front inner side panel assembly of the side panel further includes an upper side beam of the B-pillar inner panel, and the upper side beam of the B-pillar inner panel is connected to the A-pillar reinforcement beam.

12. A vehicle, characterized in that, Comprising a front inner side panel assembly of the side panel as described in any one of claims 6-11.

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