CN220535773U - Front cross member mounting structure for vehicle and vehicle - Google Patents

Abstract

The utility model provides a front cross member mounting structure for a vehicle and the vehicle. The front cross beam mounting structure includes: a front cross member upper plate; a front cross member lower plate including a lower plate body spaced apart from the front cross member upper plate, a first protrusion formed on the lower plate body to protrude toward the front cross member upper plate, the first protrusion including a first top wall; and the connecting plate is arranged on one side of the front beam lower plate, which is opposite to the front beam upper plate, and comprises a connecting plate body and a second protruding part formed on the connecting plate body, wherein the second protruding part comprises a second top wall, and the front beam upper plate, the first top wall and the second top wall are sequentially adhered and fixed together. The technical scheme aims at solving the problem that the strength of the joint of the front cross beam and the side wall assembly in the prior art is insufficient.

Description

Front cross member mounting structure for vehicle and vehicle

Technical Field

The utility model relates to the field of vehicles, and particularly provides a front cross beam mounting structure for a vehicle and the vehicle.

Background

The front cross member of a vehicle roof is a transverse load-bearing member mounted in the body structure of an automobile, typically in the front of the vehicle, between the roof and the front of the body. One of its main functions is to increase the structural strength and torsion resistance of the vehicle body, and to ensure structural stability when the roof of the vehicle is pressed. The roof front rail is usually made of a high strength metal material to ensure sufficient resistance when the roof is pressed, reducing the risk of deformation of the vehicle and injury to the occupants. The automobile body structure plays an important role in safety protection in the design of the automobile body structure, and plays an important role in the overall rigidity and the structural strength of the automobile.

In the prior art, the connection between the front cross member and the side wall assemblies on both sides of the vehicle body is generally provided with a connecting structure so as to connect the side wall assemblies extending in the longitudinal direction of the vehicle body and the front cross member extending in the transverse direction of the vehicle together and improve the strength of the connection.

Chinese patent No. CN115214781a discloses a vehicle body and a vehicle. The front cross beam of the automobile body is fixedly connected with the left side wall assembly and the right side wall assembly through the left front supporting seat and the right front supporting seat respectively. However, the left and right front support seats have insufficient structural strength, and are easily deformed by the pressure of the roof of the vehicle when the vehicle is heavy.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of Invention

The utility model provides a front cross beam mounting structure for a vehicle, which aims to solve the problem that the strength of a joint of a front cross beam and a side wall assembly in the prior art is insufficient. The front cross member mounting structure of the present utility model includes: a front cross member upper plate; a front cross member lower plate including a lower plate body spaced apart from the front cross member upper plate, a first protrusion formed on the lower plate body to protrude toward the front cross member upper plate, the first protrusion including a first top wall; and the connecting plate is arranged on one side of the front beam lower plate, which is opposite to the front beam upper plate, and comprises a connecting plate body and a second protruding part formed on the connecting plate body, wherein the second protruding part comprises a second top wall, and the front beam upper plate, the first top wall and the second top wall are sequentially adhered and fixed together.

The front beam mounting structure of the utility model comprises a front beam upper plate and a front beam lower plate, wherein the front beam lower plate comprises a lower plate body which is spaced from the front beam upper plate. The two layers of the plate bodies are separated from each other, so that the deformation resistance of the front cross beam is enhanced. The front beam mounting structure further comprises a connecting plate so as to complement strength at a key stress position where the front beam is connected with the side wall. The connecting plate sets up on the one side of front beam hypoplastron back to the front beam upper plate, improves the intensity of junction through the mode of bearing front beam upper plate and front beam hypoplastron. A first protruding part protruding towards the upper plate of the front cross beam is formed on the lower plate body, and the first protruding part comprises a first top wall; the connecting plate includes the connecting plate body and forms the second bellying on the connecting plate body, and the second bellying includes the second roof, and front beam upper plate, first roof and second roof are in proper order mutually pasted and are fixed together. Through the arrangement, on one hand, the protruding structures of the first protruding part and the second protruding part can support one or more layers of boards above the corresponding protruding parts; on the other hand, the front beam upper plate, the first top wall and the second top wall are attached and fixed together, so that the local rigidity of the junction of the front beam and the side wall can be improved, the whole vehicle weight and the whole vehicle cost are not increased, and the light weight of the vehicle body is facilitated.

In the above-described preferred technical solution for the front cross member mounting structure of the vehicle, the first protruding portion further includes a first side wall that extends from an edge of the first top wall to the base of the lower plate body and that encloses, together with the first top wall, a first cavity for accommodating the second protruding portion. Through the configuration, the first side wall can provide a part of supporting force perpendicular to the direction of the upper plate of the front cross beam, and the first cavity enables the lower plate of the front cross beam to have a good light weight effect, so that the weight reduction of the vehicle body is facilitated.

In the above-described preferred aspect of the front cross member mounting structure for a vehicle, a first opening is formed in the first side wall, the first opening extending from the base portion of the lower plate body to the edge of the first top wall. Through the setting of first open-ended, first bellying has higher processing yields.

In the above-described preferred technical solution of the front cross member mounting structure for a vehicle, the second projection portion further includes a second side wall extending from an edge of the second top wall to the base portion of the connecting plate body and enclosing a second cavity together with the second top wall. Through the configuration, the second side wall can provide a part of supporting force perpendicular to the direction of the first top wall, and the second cavity enables the connecting plate to have a better light weight effect, so that the weight of the vehicle body is reduced.

In the above-described preferred technical solution for the front cross member mounting structure of a vehicle, the lower plate body has two opposite lower plate lateral edges, the first boss being formed between the two lower plate lateral edges; and the transverse edge of each lower plate is provided with a lower plate flanging extending towards the upper plate of the front cross beam, and each lower plate flanging is fixedly connected with the upper plate of the front cross beam, so that the upper plate of the front cross beam, the lower plate body and the two lower plate flanging together form a front cross beam cavity. By the arrangement, the front beam upper plate and the front beam lower plate are fixed together to form a cavity with the front beam cavity, so that the deformation resistance of the front beam assembly (namely the front beam upper plate and the front beam lower plate) is improved. The first protruding portion is formed between the two lower plate transverse edges, so that the two lower plate flanging and the first protruding portion can be fixedly connected with the upper plate of the front cross beam, and the strength of the connecting position of the front cross beam and the side wall is improved.

In the above-described preferred technical solution of the front cross member mounting structure for a vehicle, the connecting plate has two opposite connecting plate lateral edges, and the second boss is formed between the two connecting plate lateral edges; the connecting plate flanges extending towards the upper plate of the front beam are arranged on the transverse edge of each connecting plate, the connecting plate flanges and the connecting plate body surround the outer side of the lower plate of the front beam together, and each connecting plate flange comprises a first connecting area which is fixedly connected with the lower plate flange and the upper plate of the front beam together. Through the configuration, the transverse edge of each connecting plate is provided with the connecting plate flanging extending towards the upper plate of the front beam, the connecting plate flanging and the connecting plate body are wound on the outer side of the lower plate of the front beam together, and the supporting effect of the connecting plates on the upper plate of the front beam and the lower plate of the front beam is further enhanced; the second bellying forms between two connecting plate transverse edges for two connecting plate turn-ups and second bellying three places can all form fixed connection with the front beam lower plate, and then front beam upper plate, front beam lower plate and connecting plate have all formed the structure that the three-layer board is fixed together in first junction and bellying department, greatly increased front beam and side wall junction.

In the above preferred technical solution of the front cross member mounting structure for a vehicle, the front cross member lower plate further has a lower plate longitudinal edge extending between lower plate lateral edges, the front cross member upper plate includes a lap portion extending beyond the lower plate longitudinal edge, at least a portion of the lap portion being adapted to form a fixed connection with a side wall assembly of the vehicle; the transverse edge of the connecting panel further comprises a second connecting zone forming a fixed connection with the rest of the overlap. The lap joint part of the upper plate of the front beam is connected with the side wall, so that the problem of complex assembly process caused by excessive thickness of a multi-layer plate-shaped member at the joint part of the front beam and the side wall is avoided; through the setting of second connecting region, fix connecting plate and front beam upper plate together, further strengthen the intensity of the junction of front beam and side wall.

In the above preferred technical solution for the front cross member mounting structure of a vehicle, each connecting plate flange further includes a third connecting region, the third connecting region and the first connecting region are located at opposite sides of the second connecting region, and the third connecting region is adapted to form a fixed connection with a side wall assembly of the vehicle. Through the setting of third foretell, first connecting region, second connecting region and third connecting region have connected front beam hypoplastron, front beam upper plate and side wall assembly respectively, and the junction that the connecting plate made front beam and side wall has formed stable connection structure, has promoted the anti deformability of this junction.

The utility model further provides a vehicle in order to solve the problem that the strength of the joint of the front cross beam and the side wall assembly in the prior art is insufficient. The vehicle of the utility model comprises a side wall assembly and a front cross beam mounting structure for a vehicle according to any one of the above preferred embodiments, the front cross beam mounting structure and the side wall assembly forming a fixed connection. Through the arrangement of the front cross beam mounting structure, the vehicle disclosed by the utility model can bear larger top pressure, so that the safety of passengers is ensured, and a reinforcing plate is not required to be additionally arranged, thereby being beneficial to the weight reduction of the vehicle body and the reduction of the cost of the whole vehicle.

In the preferred technical scheme of the vehicle, the side wall assembly comprises a side beam outer plate and a side beam inner plate, wherein the front beam upper plate and the side beam outer plate form fixed connection, and the connecting plate and the side beam inner plate form fixed connection. Through the configuration, the connection points of the front beam upper plate and the side beam outer plate, the side beam outer plate and the side beam inner plate and the front beam lower plate can be arranged at intervals, so that the assembly process of the connection point of the front beam and the side wall is simplified.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

FIG. 1 is an assembled schematic view of a part of the structure of an embodiment of the vehicle of the present utility model;

FIG. 2 is an exploded view of a part of the structure of an embodiment of the vehicle of the present utility model;

FIG. 3 is a partial bottom view of an embodiment of a front cross member mounting structure for a vehicle of the present utility model;

FIG. 4 is an enlarged view of a portion of the front cross member mounting structure for a vehicle of FIG. 3 at C;

FIG. 5 is a cross-sectional view at A-A of the embodiment of the vehicle of the utility model shown in FIG. 1;

FIG. 6 is a schematic structural view of a connection plate of an embodiment of a front cross member mounting structure for a vehicle of the present utility model;

FIG. 7 is a schematic cross-sectional view of the embodiment of the vehicle of the utility model shown in FIG. 1 at C-C;

FIG. 8 is a schematic cross-sectional view of the embodiment of the vehicle of the utility model shown in FIG. 1 at B-B.

List of reference numerals:

100. a front cross beam mounting structure; 10. a front cross member upper plate; 11. a lap joint; 20. a front cross member lower plate; 21. a lower plate body; 211. a lower plate lateral edge; 212. the lower plate longitudinal edge; 22. the lower plate is turned; 221. a first vertical wall; 2211. a first vertical wall edge; 222. a first welding edge; 213. a first boss; 2131. a first top wall; 2132. a first sidewall; 21321. a first opening; 2133. a first cavity; 214. a material saving groove; 30. a connecting plate; 31. a connecting plate body; 311. a second protruding portion; 3111. a second top wall; 3112. a second sidewall; 31121. a second opening; 3113. a second cavity; 312. a connecting plate transverse edge; 32. flanging the connecting plate; 321. a second vertical wall; 3211. a second vertical wall edge; 322. a second welding edge; 3221. a first connection region; 3222. a second connection region; 3223. a third connection region; 40. a front cross member cavity; 500. a side rail outer panel; 501. a third welding edge; 600. side beam inner plates; 601. and a fourth welding edge.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that in the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

In order to solve the problem of insufficient strength at the junction of the front cross member and the side wall assembly in the prior art, the present utility model provides a front cross member mounting structure 100 for a vehicle. The front cross member mounting structure 100 of the present utility model includes: a front cross member upper plate 10; a front cross member lower plate 20, the front cross member lower plate 20 including a lower plate body 21 spaced apart from the front cross member upper plate 10, a first protrusion 213 formed on the lower plate body 21 to protrude toward the front cross member upper plate 10, the first protrusion 213 including a first top wall 2131; and a connection plate 30, the connection plate 30 being provided on a side of the front cross member lower plate 20 facing away from the front cross member upper plate 10, and including a connection plate body 31 and a second protruding portion 311 formed on the connection plate body 31, the second protruding portion 311 including a second top wall 3111, the front cross member upper plate 10, the first top wall 2131 and the second top wall 3111 being sequentially attached and fixed together.

FIG. 1 is an assembled schematic view of a part of the structure of an embodiment of the vehicle of the present utility model;

fig. 2 is an exploded view of a part of the structure of an embodiment of the vehicle of the present utility model. As shown in fig. 1 and 2, the front cross member mounting structure 100 for a vehicle of the present utility model includes a front cross member upper plate 10, a front cross member lower plate 20, and a connection plate 30. In one or more embodiments, the front cross member upper plate 10, the front cross member lower plate 20, and the connection plate 30 are stacked together in the Z-direction of the vehicle (i.e., the direction perpendicular to the road surface) in this order from top to bottom in a state of being mounted to the vehicle.

Fig. 3 is a partial bottom view of an embodiment of a front cross member mounting structure for a vehicle of the present utility model. As shown in fig. 3, in one or more embodiments, the front cross member upper plate 10 has a greater length in the lateral direction (i.e., the left-right direction as viewed in fig. 3, and also the lateral direction of the vehicle when the front cross member upper plate 10 is mounted to the vehicle) than the front cross member lower plate 20, and both the left and right sides extend beyond the front cross member lower plate 20. The left and right sides are overlapped portions 11 for forming a fixed connection with the side wall assembly of the vehicle beyond the front cross member lower plate 20. Alternatively, the front cross member upper plate 10 may be configured not to extend beyond the front cross member lower plate 20 on the left or right side, and to form a fixed connection with the side wall by other suitable means. In one or more embodiments, a portion of the lap portion 11 abuts and forms a fixed connection with a side rail outer panel in the vehicle side rail assembly. The secure attachment means include, but are not limited to, resistance spot welding (i.e., RSW), self-piercing riveting (i.e., SPR), and the like. Alternatively, the lap portion 11 may be configured to all abut against the side sill outer panel and form a fixed connection. Alternatively, the lap portion 11 may be configured to form a fixed connection with other panel-type members in the side wall assembly. In one or more embodiments, the front cross member upper plate 10 is an aluminum alloy casting that provides for a lighter weight, good mechanical strength, and low material cost. Alternatively, the front cross member upper plate 10 may be machined from other suitable metallic materials.

FIG. 4 is an enlarged view of a portion of the front cross member mounting structure for a vehicle of FIG. 3 at C; fig. 5 is a cross-sectional view at A-A of the embodiment of the vehicle of the utility model shown in fig. 1. Fig. 4 is a view from the cabin upwards after the front cross member has been mounted on the vehicle. As shown in fig. 3 and 4, in one or more embodiments, the front cross member lower plate 20 includes a lower plate body 21. The lower plate body 21 is spaced apart from the front cross member upper plate 10, and is arranged in a substantially flat plate shape, substantially parallel to the front cross member upper plate 10. Alternatively, the lower plate body 21 may be configured in other shapes partially having a special structure. In one or more embodiments, the front cross member lower plate 20 is a metal stamping machined to reduce machining costs. The front cross member lower plate 20 is preferably an aluminum alloy stamping, which has a light weight, good mechanical strength, and low material cost. Alternatively, the front cross member lower plate 20 may be machined from other suitable metallic materials. In one or more embodiments, the lower plate body 21 has two opposite lower plate lateral edges 211, and both lower plate lateral edges 211 extend in a substantially lateral direction (in a state where the front cross member lower plate 20 is mounted to the vehicle, extend in a substantially lateral direction of the vehicle). The lower plate body 21 also has two opposite lower plate longitudinal edges 212. The two lower plate longitudinal edges 212 each extend between two lower plate transverse edges 211. In one or more embodiments, a lower panel cuff 22 is provided on both lower panel lateral edges 211. Each lower plate flange 22 extends toward the front cross member upper plate 10 and forms a fixed connection with the front cross member upper plate 10. The connection mode includes but is not limited to welding, screwing, riveting and the like. As shown in fig. 5, in one or more embodiments, each lower panel cuff 22 includes a first vertical wall 221 extending obliquely from the lower panel lateral edge 211 toward the front cross member upper panel 10. Each first vertical wall 221 has a first vertical wall edge 2211 opposite the lower plate lateral edge 211. A first welding edge 222 is provided on the first vertical wall edge 2211, and the first welding edge 222 abuts against and is welded together with the front cross member upper plate 10. Thus, the front rail upper plate 10, the front rail lower plate 20 and the two lower plate flanges 22 together enclose a front rail cavity 40. Alternatively, the lower panel flange 22 may be configured in other suitable configurations that can enclose the front cross member cavity 40. Alternatively, the provision of the lower plate flange 22 may be eliminated as the case may be, and the front cross member lower plate 20 and the front cross member upper plate may be secured together in other ways.

With continued reference to fig. 3, 4 and 5, in one or more embodiments, 2 first protrusions 213 are formed on the lower plate body 21, respectively located at the left and right sides of the lower plate body 21, for improving the strength of the connection with the side wall assemblies at the left and right sides. Each first boss 213 is located between the lower plate lateral edges 211. Alternatively, the first protrusions 213 may be configured in other suitable numbers, such as 1 (i.e., only the first protrusions 213 are provided on one side of the lower plate body 21, and the other side thereof is provided with strength at the joint in other suitable manners), 3 (i.e., 2 are provided on one side of the lower plate body 21, and 1 is provided on the other side thereof), 4 (i.e., 2 are provided on each of the left and right sides of the prior body), or other suitable numbers.

In one or more embodiments, the first boss 213 protrudes from the lower panel body 21 toward the front cross member upper panel 10 and includes a first top wall 2131 and a first side wall 2132. The first top wall 2131 is attached to and forms a fixed connection with the front cross member upper plate 10 by means including, but not limited to, welding, SPR, etc. In one or more embodiments, the first side wall 2132 extends from an edge of the first top wall 2131 onto a base of the lower plate body 21 (the base of the lower plate body 21, i.e., the portion of the lower plate body 21 where the first boss 213 is not provided) and encloses a first cavity 2133 with the first top wall 2131. In one or more embodiments, a first opening 21321 is formed in the first side wall 2132. The first opening 21321 extends from the base of the lower plate body 21 toward the first top wall 2131. The first opening 21321 is formed in connection with the first boss 213 being formed by stamping. When the top surface of the stamping die for stamping the first top wall 2131 is pressed against the lower plate longitudinal edge 212 or the top surface is close to the lower plate longitudinal edge 212, the first top wall 2131 is gradually lifted and the material of the lower plate body 21 yields, being stretched to form the first side wall 2132. Accordingly, the lower plate longitudinal edge 212 also deforms during stretching of the material and encloses the opening. With the above configuration, the first side walls 2132 of the first protruding portion 213 are less likely to be damaged by stretching of the material during molding, and the yield is high. Alternatively, the first opening 21321 may be omitted depending on the actual situation.

With continued reference to fig. 4, in one or more embodiments, the first boss 213 is formed at a location remote from the lower plate longitudinal edge 212. A chute 214 is formed between the lower plate longitudinal edge 212 and the first boss 213. The chute 214 extends from the lower plate longitudinal edge 212 to a first sidewall 2132 of the first boss 213 closest to the lower plate longitudinal edge 212. Further, the chute 214 communicates with the opening in the first side wall 2132 when the opening is oriented toward the lower plate longitudinal edge 212. By the arrangement of the material saving groove 214, the weight of the front beam lower plate 20 is reduced, the weight of the vehicle body is facilitated to be reduced, and the stamping forming of the first protruding portion 213 is facilitated. Alternatively, the provision of the chute 214 may be omitted.

Fig. 6 is a schematic structural view of a connection plate of an embodiment of the front cross member mounting structure for a vehicle of the present utility model. In one or more embodiments, the number of connection plates 30 is 2, disposed on the left and right sides of the corresponding front cross member lower plate 20 (based on the orientation shown in fig. 3), respectively. Alternatively, as shown in fig. 2, 1 connection plate 30 may be provided, and the side of the front cross member where the connection plate 30 is not provided may be reinforced by other suitable means. As shown in fig. 6, the connection plate 30 includes a connection plate body 31, and a second protruding portion 311 protruding toward the front cross member lower plate 20 is formed on the connection plate body 31. As shown in fig. 5, in one or more embodiments, the base of the connection plate body 31 (the base of the connection plate body 31, i.e., the portion of the connection plate body 31 where the second protruding portion 311 is not provided) abuts against the base of the lower plate body 21 to minimize the occupation of the passenger space at the connection. Alternatively, the base of the connection plate body 31 and the base of the lower plate body 21 may also be arranged to be spaced apart from each other. In one or more embodiments, the second boss 311 is received in the first cavity 2133 and includes a second top wall 3111 and a second side wall 3112. The second top wall 3111, the first top wall 2131, and the front cross member upper plate 10 are sequentially attached and form a fixed connection. The connection means include, but are not limited to, welding, self-piercing riveting, etc. Alternatively, the number of the connection plates 30 may be 1, that is, disposed on either the left or right side of the front cross member lower plate 20, and the side where the connection plates 30 are not disposed may form a fixed connection with the side body of the vehicle by other suitable means. In one or more embodiments, the number of second protrusions 311 on each connection plate 30 is 1. Alternatively, the number of second protrusions 311 on each connection plate 30 may be configured to be other numbers that match the number of first protrusions 213 on the front cross member lower plate 20. In one or more embodiments, the second boss 311 is also formed on the web body 31 by stamping. The second top wall 3111 is gradually lifted by the die and the material of the web body 31 yields, being stretched to form a second side wall 3112. The second side wall 3112 thus extends from an edge of the second top wall 3111 onto the base of the web body 31 and encloses a second cavity 3113 together with the second top wall 3111. Accordingly, in one or more embodiments, a second opening 31121 is formed on the second sidewall 3112. The second opening 31121 extends from the base of the connection plate body 31 toward the second top wall 3111. Alternatively, the setting of the second opening 31121 may be canceled as the case may be.

FIG. 7 is a schematic cross-sectional view of the embodiment of the vehicle of the utility model shown in FIG. 1 at C-C. As shown in fig. 7, the second top wall 3111, the first top wall 2131, and the front cross member upper plate 10 are sequentially bonded and form a fixed connection.

FIG. 8 is a schematic cross-sectional view of the embodiment of the vehicle of the utility model shown in FIG. 1 at B-B. With continued reference to fig. 5 and 6, in one or more embodiments, the web body 31 has two opposing web lateral edges 312, both web lateral edges 312 extending generally in a left-right direction (extending generally in a lateral direction of the vehicle in a state in which the front cross member lower plate 20 is mounted to the vehicle) based on the orientation shown in fig. 6. In one or more embodiments, the web cuffs 32 are provided on both web lateral edges 312. Each web flange 32 extends toward the front cross member upper plate 10 and includes a first web region 3221 that forms a fixed connection with the front cross member lower plate 20 and the front cross member upper plate 10. The fixed connection means include, but are not limited to, welding, self-piercing riveting, and the like. As shown in fig. 6, in one or more embodiments, each web flange 32 includes a second vertical wall 321 extending obliquely from the web transverse edge 312 toward the front cross member upper plate 10. Each second vertical wall 321 has a second vertical wall edge 3211 opposite the web lateral edge 312. A second welding edge 322 is provided on the second vertical wall edge 3211, the second welding edge 322 abutting against the first welding edge 222 and forming a weld. Thus, the second welding edge 322, the first welding edge 222 and the front cross member upper plate 10 together form a three-layer plate weld, and this formed three-layer plate weld is the first connection region 3221 (shown in fig. 8) on the connection plate flange 32. The two web flanges 32 are wrapped around the outside of the front cross member lower plate 20 together with the web body 31 so as to support the front cross member lower plate 20 and the front cross member upper plate 10. Alternatively, the connecting panel flange 32 may be fastened to the front cross member lower panel 20 and the front cross member upper panel 10 in other suitable manners, and the first connecting region 3221 may be correspondingly disposed in other suitable locations of the connecting panel flange 32. Alternatively, the first connection region 3221 of the connection plate flange 32, the lower plate flange 22 and the front cross member upper plate 10 may also be fastened together by other suitable means, such as riveting or the like.

With continued reference to fig. 3, 6 and 8, in one or more embodiments, the front cross member upper panel 10 has a lap portion 11 extending beyond the lower panel longitudinal edge 212. The lap portion 11 is adapted to ride over a panel-type member in a side wall assembly, such as a side rail outer panel 500. Thus, the portion of the lap portion 11 that forms a fixed connection with the side wall assembly of the vehicle does not form a fixed connection with the web flange 32, while the remaining portion of the lap portion 11 forms a fixed connection with the web flange 32. The portion of the connecting plate flange 32 that directly forms a fixed connection with the front cross member upper plate 10 is the second connecting region 3222. In one or more embodiments, second connection region 3222 is positioned on second welding edge 322 to form a weld with front rail upper panel 10. Since the second connection region 3222 is directly welded to the front cross member upper plate 10, the second connection region 3222 and the first connection region 3221 have a height difference, which is the thickness of the first welding edge 222 in an ideal case. Alternatively, the web flange 32 may be fastened to the front cross member upper plate 10 in other suitable ways, as the case may be, and the second connection region 3222 may be correspondingly located in other suitable positions of the web flange 32.

With continued reference to fig. 6 and 8, in one or more embodiments, the first welding edge 222 further includes a third connection region 3223. Alternatively, the third connection region 3223 may also be arranged at other suitable locations of the connection plate flange 32, as the case may be. In one or more embodiments, third connection regions 3223 and first connection regions 3221 are disposed on both sides of second connection regions 3222, respectively. Third attachment region 3223 is adapted for welding with a panel-type member in a side wall assembly, such as with side sill inner panel 600. The third connection region 3223 and the second connection region 3222 also have a height difference. This height difference corresponds ideally to the thickness of the panel-type member in the side wall assembly between third attachment region 3223 and front rail upper panel 10.

The present disclosure also provides a vehicle including a side wall assembly and the front cross member mounting structure 100 for a vehicle described above. The vehicle may be any suitable electric vehicle, fuel vehicle. The side wall assembly includes a left side wall assembly and a right side wall assembly, and based on the orientation shown in fig. 3, the front cross member mounting structure 100 is disposed on the left side wall assembly and the right side wall assembly and has left and right sides respectively forming a fixed connection with the corresponding left side wall assembly and right side wall assembly.

With continued reference to fig. 7 and 8, in one or more embodiments, the side wall assembly includes a side rail outer panel 500 and a side rail inner panel 600, wherein the side rail outer panel 500 has a third welded edge 501 and the side rail inner panel 600 has a fourth welded edge 601. The third welding edge 501 is located above the fourth welding edge 601 and is welded together with the fourth welding edge 601. The lap portion 11 of the front cross member upper plate 10 is overlapped over the third welding side 501 and welded to the third welding side 501, and the welding point between the lap portion 11 and the third welding side 501 is staggered with the welding point between the third welding side 501 and the fourth welding side 601. The third connection region 3223 of the connection plate 30 is disposed below the fourth welding side 601 and is welded together with the fourth welding side 601, and the welding points between the third connection region 3223 and the fourth welding side 601 are disposed alternately with the welding points between the third welding side 501 and the fourth welding side 601.

It is to be noted that fig. 7 and 8 are only used to describe the fitting relationship between the multi-layered plate-type members, and the gap between the adjacent plate-type members (e.g., the gap between the third welding edge 501 and the fourth welding edge 601 in fig. 7 and 8, the gap between the first top wall 2131 and the second top wall 3111, etc.) cannot be said that the adjacent plate-type members do not abut together.

In one or more embodiments, the front rail upper plate 10 and the front rail lower plate 20 are welded together to form a front rail assembly at the time of assembly; then welding the side sill inner plate 600, the connecting plate 30 and the side sill outer plate 500 to form a side sill assembly; and finally, the side beam assembly and the front beam assembly are welded to form a whole, so that the front beam is mounted on the vehicle body. Alternatively, other suitable assembly sequences may be employed depending on the circumstances.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (10)

1. A front cross member mounting structure for a vehicle, characterized in that the front cross member mounting structure includes:

a front cross member upper plate;

a front cross member lower plate including a lower plate body spaced apart from the front cross member upper plate, on which a first protrusion protruding toward the front cross member upper plate is formed, the first protrusion including a first top wall; and

the connecting plate, the connecting plate sets up on the front beam lower plate back to the front beam upper plate one side is last, and including connecting plate body and the second bellying of formation on the connecting plate body, the second bellying includes the second roof, the front beam upper plate first roof with the second roof pastes in proper order and fixes together.

2. The front cross member mounting structure for a vehicle according to claim 1, characterized in that,

the first boss further includes a first sidewall extending from an edge of the first top wall to a base of the lower plate body and enclosing with the first top wall a first cavity for receiving a second boss.

3. The front cross member mounting structure for a vehicle according to claim 2, characterized in that,

a first opening is formed in the first side wall, the first opening extending from the base of the lower plate body to an edge of the first top wall.

4. The front cross member mounting structure for a vehicle according to claim 2, characterized in that,

the second boss further includes a second sidewall extending from an edge of the second top wall to the base of the web body and enclosing a second cavity with the second top wall.

5. The front cross member mounting structure for a vehicle according to any one of claims 1 to 4, characterized in that,

the lower plate body having two opposite lower plate lateral edges, the first boss being formed between the two lower plate lateral edges;

and the transverse edge of each lower plate is provided with a lower plate flanging extending towards the upper plate of the front cross beam, and each lower plate flanging is fixedly connected with the upper plate of the front cross beam, so that the upper plate of the front cross beam, the lower plate body and the two lower plate flanging together form a front cross beam cavity.

6. The front cross member mounting structure for a vehicle according to claim 5, characterized in that,

the web having two opposed web lateral edges, the second tab being formed between the two web lateral edges;

the connecting plate flange comprises a connecting plate flange, wherein the connecting plate flange extends towards the upper plate of the front beam, the connecting plate flange and the connecting plate body surround the outer side of the lower plate of the front beam together, and each connecting plate flange comprises a first connecting area which is fixedly connected with the flange of the lower plate and the upper plate of the front beam together.

7. The front cross member mounting structure for a vehicle according to claim 6, characterized in that,

the front cross member lower panel further having a lower panel longitudinal edge extending between the lower panel lateral edges, the front cross member upper panel including a lap portion extending beyond the lower panel longitudinal edge, at least a portion of the lap portion being adapted to form a fixed connection with a side wall assembly of the vehicle;

the web transverse edge further includes a second attachment zone forming a fixed attachment to the remainder of the landing.

8. The front cross member mounting structure for a vehicle according to claim 7, characterized in that,

each connecting plate flanging further comprises a third connecting region, the third connecting regions and the first connecting regions are located on two opposite sides of the second connecting regions, and the third connecting regions are suitable for forming fixed connection with a side wall assembly of the vehicle.

9. A vehicle comprising a side rail assembly and a front cross rail mounting structure for a vehicle according to any one of claims 1 to 8, the front cross rail mounting structure and the side rail assembly forming a fixed connection.

10. The vehicle of claim 9, wherein the side wall assembly includes a side rail outer panel and a side rail inner panel, the front rail upper panel forming a fixed connection with the side rail outer panel, the connecting panel forming a fixed connection with the side rail inner panel.