Vehicle body front longitudinal beam assembly, front end frame assembly and vehicle

Abstract

The application discloses a vehicle body front longitudinal beam assembly, a front end frame assembly and a vehicle. The vehicle body front longitudinal beam assembly comprises a front longitudinal beam, a front wall middle cross beam, a front wall lower framework outer connecting plate and a front wall lower framework inner connecting plate. The front longitudinal beam comprises a front longitudinal beam front section, a front longitudinal beam middle section and a front longitudinal beam rear section. The front longitudinal beam middle section is connected with the front longitudinal beam front section and is at least partially located at the outer side of the front longitudinal beam front section. The front longitudinal beam rear section is connected with the front longitudinal beam middle section. The front wall middle cross beam is connected with the front longitudinal beam and is located at the inner side of the front longitudinal beam. The front wall lower framework outer connecting plate is connected with the front longitudinal beam and is located at the rear side of the front longitudinal beam middle section. The front wall lower framework inner connecting plate is connected with the front longitudinal beam and is located at the rear side of the front wall middle cross beam. The collision force at the front end of the front longitudinal beam can be transmitted to the front longitudinal beam middle section, the front wall middle cross beam, the front wall lower framework outer connecting plate and the front wall lower framework inner connecting plate through the front longitudinal beam front section, and then transmitted to other vehicle body components, so that the force transmission path is increased, and the vehicle collision performance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle body front longitudinal beam assembly, a front end frame assembly with the vehicle body front longitudinal beam assembly and a vehicle with the front end frame assembly. BACKGROUND

[0002] Vehicle crash safety performance is widely concerned. Vehicle crashes are usually divided into front, side, rear, rollover and pedestrian crashes. With the rapid development of new energy vehicles, how to improve the front crash performance of the vehicle, and at the same time protect the three-electric system accessories and the safety of the driver and passenger, has become the focus of the market and society. In the related art, when the front of the vehicle collides, the path of the collision force transmitted to the rear of the vehicle is relatively single, resulting in poor crash performance of the vehicle. SUMMARY

[0003] The present application aims to at least solve one of the above technical problems in the prior art. To this end, the present application provides a vehicle body front longitudinal beam assembly for a vehicle, which increases the force transmission path.

[0004] The present application also provides a front end frame assembly with the above vehicle body front longitudinal beam assembly.

[0005] The present application also provides a vehicle with the above front end frame assembly.

[0006] The vehicle body front longitudinal beam assembly for a vehicle according to the embodiments of the present application comprises: a front longitudinal beam, a front wall middle cross beam, a front wall lower framework outer connecting plate and a front wall lower framework inner connecting plate, the front longitudinal beam extends in the front-rear direction of the vehicle, the front longitudinal beam comprises a longitudinal beam front section, a longitudinal beam middle section and a longitudinal beam rear section, the longitudinal beam middle section is connected to the rear end of the longitudinal beam front section and at least partially located on the outer side of the longitudinal beam front section, the longitudinal beam rear section is located behind the longitudinal beam middle section and connected to the longitudinal beam middle section; the front wall middle cross beam is connected to the front longitudinal beam and located on the inner side of the front longitudinal beam; the front wall lower framework outer connecting plate is connected to the front longitudinal beam and located on the rear side of the longitudinal beam middle section; the front wall lower framework inner connecting plate is connected to the front longitudinal beam and located on the rear side of the front wall middle cross beam.

[0007] The vehicle body front longitudinal beam assembly for a vehicle according to the embodiments of the present application, the collision force at the front end of the front longitudinal beam can be transmitted to the longitudinal beam middle section, the front wall middle cross beam, the front wall lower framework outer connecting plate and the front wall lower framework inner connecting plate through the longitudinal beam front section, and then transmitted to other vehicle body components connected to the longitudinal beam middle section, the front wall middle cross beam, the front wall lower framework outer connecting plate and the front wall lower framework inner connecting plate, so that the force transmission path is at least four, the force transmission path is increased, and the crash performance is improved.

[0008] According to some embodiments of the present application, the strength of the rear section of the longitudinal beam is greater than the strength of the middle section of the longitudinal beam and the front section of the longitudinal beam, and the front wall middle beam, the front wall lower framework outer connecting plate and the front wall lower framework inner connecting plate are all connected to the rear section of the longitudinal beam.

[0009] According to some embodiments of the present application, the middle section of the longitudinal beam comprises a longitudinal beam outer plate and a longitudinal beam inner plate, the longitudinal beam outer plate is located on the side of the longitudinal beam inner plate facing the outside of the vehicle, and the longitudinal beam outer plate is connected to the longitudinal beam inner plate, and the angle between any two adjacent ones of the rear section of the longitudinal beam, the longitudinal beam outer plate and the front wall middle beam ranges from 110° to 130°.

[0010] According to some embodiments of the present application, the front wall lower framework inner connecting plate comprises an inner connecting plate body and inner connecting plate flanges located on both sides of the inner connecting plate body, the inner connecting plate body is bent to form a front wall lower framework inner cavity, and the size of the front wall lower framework inner cavity in the vehicle height direction is 75mm to 85mm and the size of the front wall lower framework inner cavity in the vehicle front-rear direction is 110mm to 130mm.

[0011] According to the second aspect of the present application, the front end frame assembly for a vehicle comprises an A-pillar inner plate assembly, a rocker beam assembly, a middle tunnel body and the above-mentioned front longitudinal beam assembly of the vehicle body, the A-pillar inner plate assembly is located on the outer side of the front longitudinal beam, the middle section of the longitudinal beam is connected to the A-pillar inner plate assembly, the rocker beam assembly is located on the outer side of the front longitudinal beam, and the rocker beam assembly is connected to the rear end of the A-pillar inner plate assembly, the front wall lower framework outer connecting plate is connected to the rocker beam assembly, the middle tunnel body is located on the rear side of the front wall middle beam and extends in the front-rear direction of the vehicle, the front wall middle beam and the front wall lower framework inner connecting plate are both connected to the middle tunnel body, and the connection between the front wall middle beam and the middle tunnel body is located in front of the connection between the front wall lower framework inner connecting plate and the middle tunnel body.

[0012] According to the front end frame assembly for a vehicle of the present application, the collision force at the front end of the front longitudinal beam can be transmitted to the middle section of the longitudinal beam, the front wall middle beam, the front wall lower framework outer connecting plate and the front wall lower framework inner connecting plate through the front section of the longitudinal beam, and then transmitted to the A-pillar inner plate assembly connected to the middle section of the longitudinal beam, transmitted to the middle tunnel body connected to the front wall middle beam, transmitted to the rocker beam assembly connected to the front wall lower framework outer connecting plate, and transmitted to the middle tunnel body connected to the front wall lower framework inner connecting plate, so that there are at least four force transmission paths, the number of force transmission paths is increased, and the crash performance of the vehicle is improved.

[0013] According to some embodiments of the present application, the front wall middle beam, the rear section of the longitudinal beam, the inner connecting plate of the front wall lower framework and the middle tunnel body form a first ring-shaped force transmission structure, and the middle section of the longitudinal beam, the rear section of the longitudinal beam, the outer connecting plate of the front wall lower framework and the A-pillar inner panel assembly form a second ring-shaped force transmission structure.

[0014] According to some embodiments of the present application, the front end frame assembly further comprises a battery pack frame, the rear end of the rear section of the longitudinal beam is connected with the battery pack frame, the battery pack frame is connected with the rocker beam assembly, and the battery pack frame is further connected with the middle tunnel body.

[0015] According to some embodiments of the present application, the battery pack frame is adjacent to or at least partially overlaps with the inner end of the inner connecting plate of the front wall lower framework, and the rear section of the longitudinal beam, the inner connecting plate of the front wall lower framework and the battery pack frame form a third ring-shaped force transmission structure; the battery pack frame is adjacent to or at least partially overlaps with the outer end of the outer connecting plate of the front wall lower framework, and the rear section of the longitudinal beam, the outer connecting plate of the front wall lower framework and the battery pack frame form a fourth ring-shaped force transmission structure.

[0016] According to some embodiments of the present application, the left and right sides of the middle tunnel body are each provided with the front longitudinal beam, and the front longitudinal beam on the left side is connected with the front longitudinal beam on the right side through the front wall middle beam.

[0017] The vehicle according to the third aspect of the embodiments of the present application comprises the front end frame assembly for a vehicle as described above.

[0018] According to the vehicle of the embodiments of the present application, the collision force of the front end of the front longitudinal beam can be transmitted to the A-pillar inner panel assembly connected with the middle section of the longitudinal beam, the middle tunnel body connected with the front wall middle beam, the rocker beam assembly connected with the outer connecting plate of the front wall lower framework, and the middle tunnel body connected with the inner connecting plate of the front wall lower framework through the front section of the longitudinal beam, thereby forming at least four force transmission paths, increasing the force transmission paths, and being beneficial to improving the crash performance of the vehicle.

[0019] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of a front end frame assembly for a vehicle according to an embodiment of the present application;

[0021] Figure 2 is a top view of a front end frame assembly for a vehicle according to an embodiment of the present application;

[0022] Figure 3 is a perspective view of the front frame assembly (floor removed);

[0023] Figure 4 is a top view of the front frame assembly (floor removed);

[0024] Figure 5 is a top view of the front frame assembly (floor removed, with battery pack frame);

[0025] Figure 6 is a front view of a front rail for a vehicle according to an embodiment of the present application;

[0026] Figure 7 is a top view of a front rail for a vehicle according to an embodiment of the present application;

[0027] Figure 8 is a perspective view of the outer rail panel and the inner rail panel;

[0028] Figure 9 is a perspective view of the front under dash inner panel;

[0029] Figure 10 is a perspective view of the front under dash inner panel and the front floor;

[0030] Figure 11 is a perspective view of a mid tunnel assembly for a vehicle according to an embodiment of the present application.

[0031] Reference Signs:

[0032] front frame assembly 1000;

[0033] bumper beam 1;

[0034] vehicle body front rail assembly 200, front rail 201, front rail section 2, box body collapse inducing rib 28, middle rail section 2011, outer rail panel 20111, outer panel recess 201111, outer panel collapse inducing rib 201112, inner rail panel 20112, inner panel recess 201121, rear rail section 2012, middle section cavity 2015, front dash middle beam 203, front under dash outer panel 204, front under dash inner panel 205, inner panel body 2051, first panel section 20511, middle panel section 20512, second panel section 20513, inner panel flange 2052, inner panel cavity 2053;

[0035] Middle tunnel assembly 300, middle tunnel body 301, seat cross beam assembly 302, front seat front cross beam assembly 3021, front seat left front cross beam 30211, front seat right front cross beam 30212, front seat rear cross beam assembly 3022, front seat left rear cross beam 30221, front seat right rear cross beam 30222, middle connecting cross beam 30223;

[0036] A-pillar inner panel assembly 400;

[0037] Door sill beam assembly 500;

[0038] Battery pack frame 600;

[0039] Floor 700, front floor 701, middle floor 702;

[0040] Power assembly bracket 800. DETAILED DESCRIPTION

[0041] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0042] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0043] The following will be described in detail Figures 1-11 The body front longitudinal beam assembly 200 for a vehicle according to an embodiment of the present application, the front end frame assembly 1000 having the same, and the vehicle having the front end frame assembly 1000 will be described in detail below.

[0044] Referring to Figures 2-5 As shown, the body front longitudinal beam assembly 200 for a vehicle according to an embodiment of the present application can include a front longitudinal beam 201, a front wall middle cross beam 203, a front wall lower skeleton outer connecting plate 204, and a front wall lower skeleton inner connecting plate 205.

[0045] Among them, referring to Figures 3-5As shown, the front longitudinal beam 201 extends along the front-rear direction (F1-F2 direction) of the vehicle, and it can be understood that "the front longitudinal beam 201 extends along the front-rear direction (F1-F2 direction) of the vehicle" means that the extending direction of the front longitudinal beam 201 is parallel to the front-rear direction (F1-F2 direction) of the vehicle, or that the front longitudinal beam 201 extends substantially along the front-rear direction (F1-F2 direction) of the vehicle, for example, the extending direction of the front longitudinal beam 201 has a small angle with the front-rear direction (F1-F2 direction) of the vehicle.

[0046] Referring to Figures 2-8 As shown, the front longitudinal beam 201 can include a longitudinal beam front section 2, a longitudinal beam middle section 2011, and a longitudinal beam rear section 2012. The longitudinal beam middle section 2011 is connected to the rear end of the longitudinal beam front section 2, and at least partially located outside the longitudinal beam front section 2. The part of the longitudinal beam middle section 2011 located outside the longitudinal beam front section 2 is capable of further transmitting the force transmitted by the longitudinal beam front section 2 to the outside of the longitudinal beam front section 2. The longitudinal beam rear section 2012 is located behind the longitudinal beam middle section 2011, and connected to the longitudinal beam middle section 2011. In this way, the longitudinal beam front section 2 is capable of transmitting the collision force of the front part of the vehicle to the longitudinal beam rear section 2012 through the longitudinal beam middle section 2011.

[0047] The front end (i.e., the F1 end) of the front longitudinal beam 201 is connected to the crash beam 1 of the vehicle, and the crash beam 1 extends along the left-right direction (F3-F4 direction) of the vehicle. Similarly, "the crash beam 1 extends along the left-right direction (F3-F4 direction) of the vehicle" means that the extending direction of the crash beam 1 is parallel to the left-right direction (F3-F4 direction) of the vehicle, or that the crash beam 1 extends substantially along the left-right direction (F3-F4 direction) of the vehicle, for example, the extending direction of the crash beam 1 has a small angle with the left-right direction (F3-F4 direction) of the vehicle, for example, an angle of 5°. Alternatively, the front longitudinal beam 201 and the crash beam 1 can be connected by riveting, bolting, etc., or indirectly connected through a connecting bracket.

[0048] Referring to Figures 1-2 As shown, there are two front longitudinal beams 201, and both of them are located behind the crash beam 1, and are separated from each other, with one front longitudinal beam 201 located on the left side and the other front longitudinal beam 201 located on the right side. The crash beam 1 includes a middle section, a first end section located at the left end of the middle section, and a second end section located at the right end of the middle section. The left front longitudinal beam 201 is adapted to be aligned with the connection between the middle section and the first end section, and the right front longitudinal beam 201 is adapted to be aligned with the connection between the middle section and the second end section.

[0049] When a frontal collision occurs, the impact force is transmitted through the anti-collision beam 1 to the front section 2 of the longitudinal beam, then through the front section 2 to the middle section 2011, and finally through the middle section 2011 to the rear section 2012. The portion of the middle section 2011 located outside the front section 2 can further transmit the force transmitted from the front section 2 to other body components connected to the middle section 2011, thus forming the first force transmission path.

[0050] Reference Figure 7 As shown, the middle section 2011 of the longitudinal beam may include a first middle section and a second middle section. The front end of the first middle section is connected to the rear end of the front section 2 of the longitudinal beam, and the second middle section is connected to the first middle section. The second middle section extends outward relative to the first middle section. For example, for the left front longitudinal beam 201, as shown... Figure 7 As shown, the second section of the middle section extends to the left side (F3 side) of the vehicle relative to the first section of the middle section; for the right front longitudinal beam 201, the second section of the middle section extends to the right side (F4 side) of the vehicle relative to the first section of the middle section. The front end of the rear section 2012 of the longitudinal beam connects to the adjacent point of the first and second sections of the middle section. The front section 2 of the longitudinal beam transmits force to the first section of the middle section, which further transmits force to the second section of the middle section. The second section of the middle section can further transmit the force transmitted from the first section of the middle section to other body parts connected to the second section of the middle section, thus forming the first force transmission path mentioned above at the second section of the middle section.

[0051] The front crossbeam 203 is connected to the front longitudinal beam 201, and the front crossbeam 203 is located inside the front longitudinal beam 201. For example, for the left front longitudinal beam 201, the front crossbeam 203 is located on the right side of the front longitudinal beam 201 (F4 side); for the right front longitudinal beam 201, the front crossbeam 203 is located on the left side of the front longitudinal beam 201 (F3 side). When a collision occurs at the front of the vehicle, the collision force is transmitted to the front longitudinal beam 201 through the anti-collision beam 1, and then to the front crossbeam 203 through the front longitudinal beam 201. The front crossbeam 203 can further transmit the force transmitted from the front longitudinal beam 201 to other body parts connected to the front crossbeam 203, forming a second force transmission path at the front crossbeam 203.

[0052] The front lower framework outer connecting plate 204 is connected with the front longitudinal beam 201, and the front lower framework outer connecting plate 204 is located at the rear side of the middle section 2011 of the longitudinal beam, specifically, the front lower framework outer connecting plate 204 is located at the rear side of the part of the middle section 2011 of the longitudinal beam located at the outer side of the front section 2 of the longitudinal beam, that is, the front lower framework outer connecting plate 204 is located at the rear side of the second part of the middle section, and the front lower framework outer connecting plate 204 is separated from the second part of the middle section. When the front part of the vehicle collides, the collision force is transmitted to the front longitudinal beam 201 through the bumper beam 1, and then transmitted to the front lower framework outer connecting plate 204 through the front longitudinal beam 201, and the front lower framework outer connecting plate 204 can further transmit the force transmitted by the front longitudinal beam 201 to other vehicle body parts connected with the front lower framework outer connecting plate 204, and a third force transmission path is formed at the front lower framework outer connecting plate 204.

[0053] The front lower framework inner connecting plate 205 is connected with the front longitudinal beam 201, and the front lower framework inner connecting plate 205 is located at the rear side of the front cross beam 203, and the front lower framework inner connecting plate 205 is separated from the front cross beam 203. When the front part of the vehicle collides, the collision force is transmitted to the front longitudinal beam 201 through the bumper beam 1, and then transmitted to the front lower framework inner connecting plate 205 through the front longitudinal beam 201, and the front lower framework inner connecting plate 205 can further transmit the force transmitted by the front longitudinal beam 201 to other vehicle body parts connected with the front lower framework inner connecting plate 205, and a fourth force transmission path is formed at the front lower framework inner connecting plate 205.

[0054] The front longitudinal beam 201, the front cross beam 203, the front lower framework outer connecting plate 204 and the front lower framework inner connecting plate 205 form a fighter-type force transmission structure, wherein the middle section 2011 of the longitudinal beam and the front cross beam 203 form the first wing of the fighter-type force transmission structure, that is, the front wing, and the front lower framework outer connecting plate 204 and the front lower framework inner connecting plate 205 form the second wing of the fighter-type force transmission structure, that is, the rear wing. The front cross beam 203 and the front lower framework inner connecting plate 205 are located at the inner side of the rear section 2012 of the longitudinal beam, and the second part of the middle section and the front lower framework outer connecting plate 204 are located at the outer side of the rear section 2012 of the longitudinal beam. The fighter-type force transmission structure has more force transmission paths, which can effectively decompose and disperse the force and reduce the intrusion amount to the minimum, which is beneficial to improve the crash performance.

[0055] In the description of the present application, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0056] According to an embodiment of the present invention, the front longitudinal beam assembly 200 for a vehicle body is constructed as a fighter jet-style force transmission structure, solving the collision problem at the front of the vehicle. The collision force at the front end of the front longitudinal beam 201 can be transmitted via the front section 2 of the longitudinal beam to the middle section 2011 of the longitudinal beam, the middle crossbeam 203 of the front bulkhead, the outer connecting plate 204 of the lower frame of the front bulkhead, and the inner connecting plate 205 of the lower frame of the front bulkhead, and then to other body components connected to the middle section 2011 of the longitudinal beam 2011, the middle crossbeam 203 of the front bulkhead, the outer connecting plate 204 of the lower frame of the front bulkhead, and the inner connecting plate 205 of the lower frame of the front bulkhead. Thus, the front longitudinal beam assembly 200 has at least four force transmission paths, which increases the number of force transmission paths, effectively decomposes and disperses the force, minimizes the intrusion, and is beneficial to improving collision performance. Moreover, the force transmission structure of the front longitudinal beam assembly 200 of the present invention is simple and highly versatile, which is conducive to reducing weight and achieving lightweighting. At the same time, compared with the relatively simple force transmission paths in related technologies, the performance of the front longitudinal beam assembly 200 of the present invention is superior.

[0057] In some embodiments of the present invention, the strength of the rear section 2012 of the longitudinal beam is greater than that of the middle section 2011 and the front section 2 of the longitudinal beam. The front crossbeam 203, the outer connecting plate 204 of the lower frame of the front enclosure, and the inner connecting plate 205 of the lower frame of the front enclosure are all connected to the rear section 2012 of the longitudinal beam. This helps to improve the connection strength between the front crossbeam 203 and the front longitudinal beam 201, the connection strength between the outer connecting plate 204 of the lower frame of the front enclosure and the front longitudinal beam 201, and the connection strength between the inner connecting plate 205 of the lower frame of the front enclosure and the front longitudinal beam 201, so that the second force transmission path, the third force transmission path, and the fourth force transmission path transmit force reliably.

[0058] In some embodiments of the present invention Figures 6-7 This is a schematic diagram of the left front longitudinal beam 201. The middle section 2011 of the longitudinal beam includes an outer longitudinal beam plate 20111 and an inner longitudinal beam plate 20112. The outer longitudinal beam plate 20111 is located on the side of the inner longitudinal beam plate 20112 facing outwards from the vehicle, and the outer longitudinal beam plate 20111 is connected to the inner longitudinal beam plate 20112. The outer longitudinal beam plate 20111 and the inner longitudinal beam plate 20112 can be fixedly connected by welding or gluing, or they can be detachably connected by bolts or rivets.

[0059] Combination Figure 4 , Figures 6-7 The angle between any two adjacent longitudinal beam sections 2012, outer longitudinal beam plate 20111, and front crossbeam 203 is between 110° and 130°, which facilitates the even distribution of force transmission. Optionally, the angle between any two adjacent longitudinal beam sections 2012, outer longitudinal beam plate 20111, and front crossbeam 203 is between 120°.

[0060] In some embodiments of the present invention, reference is made to... Figures 9-10As shown, the front lower frame inner connecting plate 205 can include an inner connecting plate body 2051 and inner connecting plate flanges 2052 located on both sides of the inner connecting plate body 2051, the inner connecting plate body 2051 is bent to form a front lower frame inner cavity 2053, the front lower frame inner connecting plate 205 has the front lower frame inner cavity 2053, so that the strength and rigidity of the front lower frame inner connecting plate 205 are improved, the front lower frame inner connecting plate 205 is not easy to be deformed and damaged, thereby effectively transmitting force when the vehicle front end collides.

[0061] The inner connecting plate flanges 2052 on both sides of the inner connecting plate body 2051 extend away from each other, that is, the inner connecting plate flange 2052 on the F1 side of the inner connecting plate body 2051 extends in the F1 direction, and the inner connecting plate flange 2052 on the F2 side of the inner connecting plate body 2051 extends in the F2 direction. The inner connecting plate body 2051 includes an inner connecting plate first plate portion, an inner connecting plate middle plate portion and an inner connecting plate second plate portion connected together, the inner connecting plate first plate portion and the inner connecting plate second plate portion both have the inner connecting plate flange 2052, the inner connecting plate first plate portion and the inner connecting plate second plate portion are located on the same side of the inner connecting plate middle plate portion and are oppositely arranged, and the inner connecting plate first plate portion, the inner connecting plate middle plate portion and the inner connecting plate second plate portion are configured as a "U" shaped structure, for example, the inner connecting plate first plate portion and the inner connecting plate second plate portion are located on the upper side of the inner connecting plate middle plate portion, and the opening of the "U" shaped structure faces upward. The inner connecting plate first plate portion, the inner connecting plate middle plate portion and the inner connecting plate second plate portion enclose the above-mentioned front lower frame inner cavity 2053.

[0062] Alternatively, the size of the front lower frame inner cavity 2053 in the vehicle height direction is 75mm-85mm, and the size of the front lower frame inner cavity 2053 in the vehicle front-rear direction is 110mm-130mm. For reference Figures 9-10 As shown, the size of the front lower frame inner cavity 2053 in the vehicle height direction is L1, and L1 satisfies the relationship: 75mm≤L1≤85mm, and optionally, L1 can be 75mm, 78mm, 80mm, 82mm, 85mm, etc., and L1 can also be other values between 75mm and 85mm, which will not be listed one by one here. The size of the front lower frame inner cavity 2053 in the vehicle front-rear direction is L2, and L2 satisfies the relationship: 110mm≤L2≤130mm, and optionally, L2 can be 110mm, 115mm, 120mm, 125mm, 130mm, etc., and L2 can also be other values between 110mm and 130mm, which will not be listed one by one here.

[0063] The vertical distance between the middle plate portion of the inner connecting plate and the inner connecting plate flange 2052, i.e. the size of the front lower frame inner cavity 2053 in the vehicle height direction, is 75mm-85mm. The distance between the first plate portion of the inner connecting plate and the second plate portion of the inner connecting plate, i.e. the size of the front lower frame inner cavity 2053 in the vehicle front-rear direction, is 110mm-130mm.

[0064] In some embodiments of the present application, referring to FIG. 7, Figure 1 、 Figures 9-10 As shown in FIG. 7, the vehicle further comprises a floor 700, the floor 700 comprises a front floor 701, the front lower frame inner connecting plate 205 is located below the front floor 701, the inner connecting plate flange 2052 on both sides of the inner connecting plate body 2051 is attached to the lower surface of the front floor 701, and the front floor 701 covers the upper end opening of the front lower frame inner cavity 2053. In this way, a box-shaped structure is formed between the front lower frame inner connecting plate 205 and the front floor 701, which is beneficial to improve the force transmission effect at the front lower frame inner connecting plate 205.

[0065] The front end frame assembly 1000 for a vehicle according to the second embodiment of the present application can comprise an A-pillar inner panel assembly 400, a rocker beam assembly 500, a mid-channel assembly 300, and the above-mentioned body front longitudinal beam assembly 200.

[0066] The A-pillar inner panel assembly 400 is located outside the front longitudinal beam 201, for example, for the left front longitudinal beam 201, the A-pillar inner panel assembly 400 is located on the left side of the front longitudinal beam 201; for the right front longitudinal beam 201, the A-pillar inner panel assembly 400 is located on the right side of the front longitudinal beam 201. The longitudinal beam middle section 2011 is connected to the A-pillar inner panel assembly 400. In the first force transmission path, the part of the longitudinal beam middle section 2011 located outside the longitudinal beam front section 2 can further transmit the force transmitted by the longitudinal beam front section 2 to the A-pillar inner panel assembly 400 connected to the longitudinal beam middle section 2011. Specifically, the longitudinal beam outer plate 20111 of the longitudinal beam middle section 2011 can be connected to the A-pillar inner panel assembly 400, or the longitudinal beam inner plate 20112 of the longitudinal beam middle section 2011 can be connected to the A-pillar inner panel assembly 400, or both the longitudinal beam outer plate 20111 and the longitudinal beam inner plate 20112 of the longitudinal beam middle section 2011 can be connected to the A-pillar inner panel assembly 400.

[0067] The rocker beam assembly 500 is located outside the front longitudinal beam 201, and the rocker beam assembly 500 is connected to the rear end of the A-pillar inner panel assembly 400, for example, for the left front longitudinal beam 201, the rocker beam assembly 500 is located on the left side of the front longitudinal beam 201; for the right front longitudinal beam 201, the rocker beam assembly 500 is located on the right side of the front longitudinal beam 201. The front underbody outer connecting plate 204 is connected with the rocker beam assembly 500. In the third force transmission path, the front underbody outer connecting plate 204 can further transmit the force transmitted by the front longitudinal beam 201 to the rocker beam assembly 500 connected with the front underbody outer connecting plate 204, and the force transmitted by the longitudinal beam middle section 2011 to the A-pillar inner panel assembly 400 can be further transmitted to the rocker beam assembly 500, and the first force transmission path and the third force transmission path converge on the rocker beam assembly 500.

[0068] Referring to Figures 1-3 As shown, the center tunnel assembly 300 includes a center tunnel body 301, the center tunnel body 301 is located on the rear side of the front underbody cross beam 203, and the center tunnel body 301 extends along the front-rear direction (F1-F2 direction) of the vehicle. Similarly, "the center tunnel body 301 extends along the front-rear direction (F1-F2 direction) of the vehicle" means that the extension direction of the center tunnel body 301 is parallel to the front-rear direction (F1-F2 direction) of the vehicle, or the center tunnel body 301 extends along the front-rear direction (F1-F2 direction) of the vehicle, for example, the extension direction of the center tunnel body 301 has a small angle with the front-rear direction (F1-F2 direction) of the vehicle, for example, an angle of 5°.

[0069] The front underbody cross beam 203 and the front underbody inner connecting plate 205 are connected with the center tunnel body 301, in other words, the front underbody cross beam 203 has a cross beam connecting structure, the front underbody inner connecting plate 205 has an inner connecting plate connecting structure, the front underbody cross beam 203 is connected with the center tunnel body 301 through the cross beam connecting structure, and the front underbody inner connecting plate 205 is connected with the center tunnel body 301 through the inner connecting plate connecting structure. The connection between the front underbody cross beam 203 and the center tunnel body 301 is located in front of the connection between the front underbody inner connecting plate 205 and the center tunnel body 301. In the second force transmission path, the front underbody cross beam 203 can further transmit the force transmitted by the front longitudinal beam 201 to the center tunnel body 301 connected with the front underbody cross beam 203. In the fourth force transmission path, the front underbody inner connecting plate 205 can further transmit the force transmitted by the front longitudinal beam 201 to the center tunnel body 301 connected with the front underbody inner connecting plate 205, and the second force transmission path and the fourth force transmission path converge on the center tunnel body 301.

[0070] Optionally, the front wall middle beam 203 and the middle tunnel body 301 can be fixed by welding or fasteners; the front wall lower frame inner connecting plate 205 and the middle tunnel body 301 can be fixed by welding or fasteners.

[0071] Optionally, the rocker beam assembly 500 can be an aluminum extruded rocker beam assembly.

[0072] According to the front end frame assembly 1000 for a vehicle in the embodiment of the present application, the collision force at the front end of the front longitudinal beam 201 can be transmitted to the longitudinal beam middle section 2011, the front wall middle beam 203, the front wall lower frame outer connecting plate 204 and the front wall lower frame inner connecting plate 205 through the longitudinal beam front section 2, and then transmitted to the A-pillar inner panel assembly 400 connected with the longitudinal beam middle section 2011, the middle tunnel body 301 connected with the front wall middle beam 203, the rocker beam assembly 500 connected with the front wall lower frame outer connecting plate 204, and the middle tunnel body 301 connected with the front wall lower frame inner connecting plate 205, so that there are at least four force transmission paths, the force transmission paths are increased, and the vehicle crash performance is improved.

[0073] In each force transmission path of the front end frame assembly 1000 designed in the present application, the front wing and the rear wing of the fighter plane type force transmission structure of the vehicle body front longitudinal beam assembly 200 are connected with the middle tunnel body 301 and have reliable and stable connecting points for energy transmission. For example, part of the collision energy is transmitted inward through the cavity of the front wall middle beam 203 and then transmitted horizontally and rearward to the middle tunnel body 301, and part of the collision energy is transmitted inward through the front wall lower frame inner connecting plate 205 to the middle tunnel body 301 and then transmitted rearward. The middle tunnel body 301 can be manufactured by a hot forming TRB process (Tailor Rolling Blanks) or a hot forming TWB process (Tailor Welded Blanks).

[0074] In some embodiments of the present application, the front wall middle beam 203, the longitudinal beam rear section 2012, the front wall lower frame inner connecting plate 205 and the middle tunnel body 301 form a first ring-shaped force transmission structure, which is a quadrilateral force transmission structure, and can effectively decompose and disperse force. The longitudinal beam middle section 2011, the longitudinal beam rear section 2012, the front wall lower frame outer connecting plate 204 and the A-pillar inner panel assembly 400 form a second ring-shaped force transmission structure, which is a quadrilateral force transmission structure, and can effectively decompose and disperse force. Here, the longitudinal beam middle section 2011 participating in forming the second ring-shaped force transmission structure can be the longitudinal beam outer plate 20111, the longitudinal beam inner plate 20112 or a combination of the longitudinal beam outer plate 20111 and the longitudinal beam inner plate 20112.

[0075] In some embodiments of the present application, referring to Figure 5 As shown in the figure, the front end frame assembly 1000 can further include a battery pack frame 600, the rear end of the front longitudinal beam 201 is connected with the battery pack frame 600, that is, the rear end of the rear longitudinal beam section 2012 is connected with the battery pack frame 600, the battery pack frame 600 is connected with the rocker beam assembly 500, and the battery pack frame 600 is further connected with the center tunnel body 301. For example, the left and right sides of the center tunnel body 301 are each provided with the battery pack frame 600, the outer end of each side of the battery pack frame 600 is connected with the rocker beam assembly 500, and the inner end of each side of the battery pack frame 600 is connected with the center tunnel body 301. Of course, the battery pack frame 600 can also be a whole structure penetrating from one side of the rocker beam assembly 500 to the other side of the rocker beam assembly 500. The battery pack frame 600 is used to provide mounting and fixing points for the battery pack. When the front part of the vehicle collides, the collision force is transmitted to the front longitudinal beam 201 through the crash beam 1, and then transmitted to the battery pack frame 600 through the front longitudinal beam 201. In addition, the collision force transmitted to the center tunnel body 301 by the vehicle body front longitudinal beam assembly 200 can be further transmitted to the battery pack frame 600 through the center tunnel body 301, and the collision force on the battery pack frame 600 can be further transmitted to the rocker beam assembly 500, and then transmitted to the rear of the vehicle. The collision force transmitted to the battery pack frame 600 by the front longitudinal beam 201 can also be further transmitted to the center tunnel body 301, and then transmitted to the rear of the vehicle.

[0076] It should be noted that in the present application, "connected" between two components or two parts, or one part mounted on another part, can mean fixed connection such as welding or gluing, or detachable connection through bolts or rivets.

[0077] In some embodiments of the present application, in the front-rear direction (F1-F2 direction) of the vehicle, the battery pack frame 600 is adjacent to or at least partially overlaps the inner end of the front lower inner connecting plate 205, and the third ring-shaped force transmission structure is formed between the front longitudinal beam 201, the front lower inner connecting plate 205 and the battery pack frame 600. Specifically, the third ring-shaped force transmission structure is formed between the rear longitudinal beam section 2012, the front lower inner connecting plate 205 and the battery pack frame 600, and the third ring-shaped force transmission structure is a triangular force transmission structure, which is stable in structure and can effectively decompose and disperse force. The battery pack frame 600 is adjacent to or at least partially overlaps the outer end of the front lower outer connecting plate 204, and the fourth ring-shaped force transmission structure is formed between the front longitudinal beam 201, the front lower outer connecting plate 204 and the battery pack frame 600. Specifically, the fourth ring-shaped force transmission structure is formed between the rear longitudinal beam section 2012, the front lower outer connecting plate 204 and the battery pack frame 600, and the fourth ring-shaped force transmission structure is a triangular force transmission structure, which is stable in structure and can effectively decompose and disperse force.

[0078] In some embodiments of the present application, with reference to Figures 3-5 As shown, the left and right sides of the middle channel body 301 are each provided with a front longitudinal beam 201, and the left front longitudinal beam 201 and the right front longitudinal beam 201 are connected by a front wall middle beam 203. The body front longitudinal beam assembly 200 (for example, a fighter type) of the present application has two front wing inner sides on both sides connected by a front wall middle beam 203 in the middle, the front wall middle beam 203 is connected with the front end of the middle channel body 301, forming a first stable tripod force transmission structure, the front wing outer side is connected with the lower section of the A-pillar inner panel assembly 400, and forms two stable triangular rings with the rear force transmission channel, which can effectively decompose and disperse force, and reduce the intrusion amount to a minimum.

[0079] In some embodiments not shown in the figure, the left front longitudinal beam 201 and the right front longitudinal beam 201 are each connected with a front wall middle beam 203, and the left front wall middle beam 203 and the right front wall middle beam 203 are each connected with the front end of the middle channel body 301.

[0080] The rear wing inner side of the body front longitudinal beam assembly 200 (for example, a fighter type) of the present application is also connected with the middle channel body 301, and the rear wing outer side is connected with the rocker beam assembly 500, forming a second stable tripod force transmission structure, and also forming two stable small triangular rings with the front part of the rear battery pack frame 600, which can effectively decompose and disperse force, and reduce the intrusion amount to a minimum.

[0081] In combination with Figures 1-8, the force is first transmitted to the bumper beam 1, the bumper beam 1 deforms and absorbs energy and is transmitted to the front section 2 of the front longitudinal beam 201, the front section 2 of the front longitudinal beam 201 and the bumper beam 1 can be connected by riveting, bolting or other methods, and the front section 2 of the front longitudinal beam 201 and the bumper beam 1 can also be indirectly connected through a connecting bracket. The front section 2 of the front longitudinal beam 201 is configured as an energy absorption box, and the front section 2 of the front longitudinal beam 201 is provided with a box body induced collapse rib 28 on the front section side surface, the box body induced collapse rib 28 is vertically arranged and the upper end extends to the upper top surface of the front section 2 of the front longitudinal beam 201, and the lower end extends to the lower bottom surface of the front section 2 of the front longitudinal beam 201. When the front part of the vehicle collides, the collision force is transmitted to the front section 2 of the front longitudinal beam 201 through the bumper beam 1, and the front section 2 of the front longitudinal beam 201 starts the first section of the collapse and deformation at the box body induced collapse rib 28 to absorb part of the collision energy, and stops the collapse and deformation at the rear root of the front section 2 of the front longitudinal beam 201, and the front section 2 of the front longitudinal beam 201 is connected to the front part of the inner plate 20112 and the outer plate 20111 of the front longitudinal beam by bolting (for example, M14 bolt, mechanical property 10.9 level). The energy continues to be transmitted backward and is deformed outward at the inner plate recess 201121 at the first position to absorb energy, and continues to be deformed inward at the outer plate recess 201111 at the second position to absorb energy to the extreme, and the front part of the inner plate 20112 and the front part of the outer plate 20111 of the front longitudinal beam are high-strength advanced high-strength steel, and the rear part of the inner plate 20112 and the rear part of the outer plate 20111 of the front longitudinal beam are hot-formed steel, and the inner plate 20112 and the outer plate 20111 of the front longitudinal beam are connected by laser welding to form a middle section cavity 2015, the front part of the middle section cavity 2015 is a cold stamping cavity, and the Z-shaped (i.e. at the first position and the second position) bending deformation is deformed to absorb energy, and the rear part of the middle section cavity 2015 is a hot forming cavity, which is completely deformed or deformed to protect the passengers, and the energy is divided into three parts to conduct, most of which is transmitted downward through the rear section 2012 of the front longitudinal beam, part of which is transmitted outward to the A-pillar inner plate assembly 400 through the hot forming cavity of the inner plate 20112 and the outer plate 20111 of the front longitudinal beam, and part of which is transmitted inward through the cavity of the front wall middle beam 203 and then transmitted backward (the inward and outward transmission paths form the first wing of the fighter to share the energy).

[0082] The energy transmitted backward through the rear section 2012 of the front longitudinal beam is partly transmitted outward to the aluminum extruded rocker beam assembly 500 by the front wall lower framework outer connecting plate 204 and then transmitted backward, and the other part of the energy is transmitted inward to the hot-formed TRB middle channel assembly 300 by the front wall lower framework inner connecting plate 205 and then transmitted backward. The rear section 2012 of the front longitudinal beam is connected to the battery pack frame 600 by bolting, so part of the energy is transmitted to the battery pack frame 600 and then transmitted backward and dispersed to the rocker beam assembly 500. The rear section 2012 of the front longitudinal beam has high strength and rigidity, the rear part is a hot forming process, and the inside is a reinforcing plate and a split high-strength plate to form a closed cavity, which can ensure no deformation and transmit energy backward.

[0083] In combinationFigures 6-7 The outer plate recessed portion 201111 of the longitudinal beam outer plate 20111 is further provided with an outer plate induced collapse rib 201112 extending along the vertical direction to the top and bottom of the longitudinal beam outer plate 20111. In this way, the outer plate induced collapse rib 201112 is easy to collapse and deform, and when a collision occurs at the front of the vehicle, the collision force is transmitted to the longitudinal beam front section 2 through the bumper beam 1, and then to the longitudinal beam middle section 2011 through the longitudinal beam front section 2, and the outer plate induced collapse rib 201112 collapses and deforms at the position to absorb a part of the collision energy.

[0084] In some embodiments of the present application, in combination with Figures 1-4 As shown in The floor 700 can include a middle floor 702, and the middle tunnel body 301 is located above the middle floor 702, which can improve the strength and stiffness at the position of the middle tunnel body 301, and is also beneficial to improve the force transmission effect at the position of the middle tunnel body 301.

[0085] In some embodiments of the present application, in combination with Figures 1-5 、 Figure 11 As shown in The middle tunnel assembly 300 includes a middle tunnel body 301 and a seat cross beam assembly 302, the first wing and the second wing of the front longitudinal beam assembly 200 are connected to the middle tunnel body 301, the seat cross beam assembly 302 is connected to the middle tunnel body 301, and the seat cross beam assembly 302 extends along the left and right directions of the vehicle.

[0086] Referring to Figures 4-5 、 Figure 11As shown, the seat cross beam assembly 302 includes a front seat front cross beam assembly 3021 and a front seat rear cross beam assembly 3022, the front seat front cross beam assembly 3021 is connected with the center tunnel body 301, and the front seat front cross beam assembly 3021 extends along the left-right direction (F3-F4 direction) of the vehicle, the front seat rear cross beam assembly 3022 is located at the rear side of the front seat front cross beam assembly 3021, and the front seat rear cross beam assembly 3022 is separated from the front seat front cross beam assembly 3021, the front seat rear cross beam assembly 3022 is connected with the center tunnel body 301, and the front seat rear cross beam assembly 3022 extends along the left-right direction (F3-F4 direction) of the vehicle. Similarly, the front seat front cross beam assembly 3021, the front seat front cross beam assembly 3021 extending along the left-right direction (F3-F4 direction) of the vehicle means that the extending direction of the front seat front cross beam assembly 3021, the front seat front cross beam assembly 3021 can be parallel to the left-right direction (F3-F4 direction) of the vehicle, or the front seat front cross beam assembly 3021, the front seat front cross beam assembly 3021 can extend along the left-right direction (F3-F4 direction) of the vehicle, for example, the extending direction of the front seat front cross beam assembly 3021, the front seat front cross beam assembly 3021 has a small included angle with the left-right direction (F3-F4 direction) of the vehicle, for example, an included angle of 5°. The center tunnel body 301, the front seat front cross beam assembly 3021 and the front seat rear cross beam assembly 3022 are configured as a dragonfly wing unfolding type. The collision force on the center tunnel body 301 can be transmitted to other vehicle body parts connected with the front seat front cross beam assembly 3021 and the front seat rear cross beam assembly 3022 through the front seat front cross beam assembly 3021 and the front seat rear cross beam assembly 3022.

[0087] The front seat rear cross beam assembly 3022 and the front seat front cross beam assembly 3021 can provide support and fixing points for the front seat of the vehicle. Optionally, the front seat rear cross beam assembly 3022 is parallel to the front seat front cross beam assembly 3021, which is beneficial to improve the assembly efficiency of the center tunnel assembly 300. Of course, the front seat rear cross beam assembly 3022 and the front seat front cross beam assembly 3021 can also be non-parallel.

[0088] In some embodiments of the present application, referring to Figures 4-5 , Figure 11 As shown, the front seat front cross beam assembly 3021 can include a front seat left front cross beam 30211 and a front seat right front cross beam 30212, the front seat left front cross beam 30211 is connected to the left side of the center tunnel body 301, and the front seat right front cross beam 30212 is connected to the right side of the center tunnel body 301. The front seat left front cross beam 30211 can provide support and fixing points for the main driver seat, and the front seat right front cross beam 30212 can provide support and fixing points for the front passenger seat. The front seat left front cross beam 30211 and the front seat right front cross beam 30212 are configured as the front wings of the dragonfly wing unfolding type force transmission structure.

[0089] In some embodiments of the present application, referring to Figures 4-5 , Figure 11 As shown in FIG. 2, the front seat rear cross beam assembly 3022 can include a front seat left rear cross beam 30221, a front seat right rear cross beam 30222, and an intermediate connecting cross beam 30223. The front seat left rear cross beam 30221 is connected to the left side of the center tunnel body 301, the front seat right rear cross beam 30222 is connected to the right side of the center tunnel body 301, and the intermediate connecting cross beam 30223 is installed on the center tunnel body 301 and connects the front seat left rear cross beam 30221 and the front seat right rear cross beam 30222. The front seat left rear cross beam 30221 can provide a support and fixing point for the left rear seat, and the front seat right rear cross beam 30222 can provide a support and fixing point for the right rear seat. The front seat left rear cross beam 30221, the intermediate connecting cross beam 30223, and the front seat right rear cross beam 30222 are configured as the rear wings of a dragonfly wing structure.

[0090] Alternatively, the installation and fixation of the front seat front cross beam assembly 3021 and the center tunnel body 301, and the installation and fixation of the front seat rear cross beam assembly 3022 and the center tunnel body 301 can be achieved by bolts, rivets, or the like, or by a welding process.

[0091] In some embodiments of the present application, referring to Figures 1-5 As shown in FIG. 1, the front end frame assembly 1000 further includes a power assembly bracket 800. One end of the power assembly bracket 800 is connected to the insertion joint between the middle section 2011 and the front section 2 of the front longitudinal beam 201 on the same side, and the other end of the power assembly bracket 800 is also connected to the insertion joint between the middle section 2011 and the front section 2 of the front longitudinal beam 201 on the same side. The collision force on one side of the front longitudinal beam 201 can be transmitted to the other side of the front longitudinal beam 201 through the power assembly bracket 800, further enriching the force transmission path of the front end frame assembly 1000. The power assembly bracket 800 can be a mouth-shaped pipe beam structure formed by combining two U-shaped pieces, which can decompose and support the force in the F3-F4 direction and ensure smooth force transmission in the chassis mounting point area without bending inward. In a specific example, the height dimension of the mouth-shaped pipe beam can be 30 mm, and the width dimension (F1-F2 direction) can be 80 mm. When the center pillar collides, the power assembly bracket 800 plays a supporting role, preventing the front longitudinal beam 201 from bending from the rear end root of the rear section 2012, so that the front longitudinal beam 201 can bend at the connection between the front section 2 and the middle section 2011, and the power assembly bracket 800 can also prevent the center pillar from further invading the passenger compartment, protecting the safety of the passengers.

[0092] The vehicle according to the third aspect of the present application includes the front end frame assembly 1000 for a vehicle of the above-mentioned embodiments.

[0093] According to the vehicle of the embodiment of the present application, the collision force at the front end of the front longitudinal beam 201 can be transmitted to the longitudinal beam middle section 2011, the front wall middle cross beam 203, the front wall lower framework outer connecting plate 204 and the front wall lower framework inner connecting plate 205 through the longitudinal beam front section 2, and then transmitted to the A-pillar inner plate assembly 400 connected with the longitudinal beam middle section 2011, the middle tunnel body 301 connected with the front wall middle cross beam 203, the rocker beam assembly 500 connected with the front wall lower framework outer connecting plate 204 and the middle tunnel body 301 connected with the front wall lower framework inner connecting plate 205, so that the force transmission path is at least four, the force transmission path is increased, and the vehicle crash performance is improved.

[0094] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] In the description of the present application, the description of the terms "some embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0096] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A body front rail assembly (200) for a vehicle, characterized by, Comprising: a front longitudinal beam (201) extending in a front-rear direction of a vehicle, the front longitudinal beam (201) comprising a front longitudinal beam front section (2), a front longitudinal beam middle section (2011) connected to a rear end of the front longitudinal beam front section (2) and at least partially located outside the front longitudinal beam front section (2), and a front longitudinal beam rear section (2012) located rearward of the front longitudinal beam middle section (2011) and connected to the front longitudinal beam middle section (2011); a front wall middle cross beam (203) connected to the front longitudinal beam (201) and located inside the front longitudinal beam (201); a front wall lower framework outer connecting plate (204) connected to the front longitudinal beam (201) and located at a rear side of the front longitudinal beam middle section (2011); a front wall lower framework inner connecting plate (205) connected to the front longitudinal beam (201) and located at a rear side of the front wall middle cross beam (203); the front longitudinal beam rear section (2012) has a strength greater than that of the front longitudinal beam middle section (2011) and the front longitudinal beam front section (2), and the front wall middle cross beam (203), the front wall lower framework outer connecting plate (204), and the front wall lower framework inner connecting plate (205) are all connected to the front longitudinal beam rear section (2012); the front wall lower framework inner connecting plate (205) comprises a connecting plate body (2051) and connecting plate flanges (2052) located at both sides of the connecting plate body (2051), the connecting plate body (2051) is bent to form a front wall lower framework inner cavity (2053), the front wall lower framework inner connecting plate (205) is located below a front floor (701), the connecting plate flanges (2052) at both sides of the connecting plate body (2051) are both in contact with a lower surface of the front floor (701), and the front floor (701) covers an upper end opening of the front wall lower framework inner cavity (2053).

2. The vehicle body front rail assembly (200) of claim 1, characterized in that, the front longitudinal beam middle section (2011) comprises a longitudinal beam outer plate (20111) and a longitudinal beam inner plate (20112), the longitudinal beam outer plate (20111) is located at a side of the longitudinal beam inner plate (20112) facing outward of the vehicle, and the longitudinal beam outer plate (20111) is connected to the longitudinal beam inner plate (20112), and an angle between any two adjacent ones of the front longitudinal beam rear section (2012), the longitudinal beam outer plate (20111), and the front wall middle cross beam (203) ranges from 110° to 130°.

3. The body front rail assembly (200) of claim 1, characterized by, a dimension of the front wall lower framework inner cavity (2053) in a vehicle height direction ranges from 75 mm to 85 mm, and a dimension of the front wall lower framework inner cavity (2053) in a vehicle front-rear direction ranges from 110 mm to 130 mm.

4. A front end frame assembly (1000) characterized by, Comprising: the vehicle body front longitudinal beam assembly (200) according to any one of claims 1-3; an A-pillar inner panel assembly (400) located outside the front longitudinal beam (201), and the front longitudinal beam middle section (2011) is connected to the A-pillar inner panel assembly (400). A rocker beam assembly (500) is located outside the front longitudinal beam (201), and the rocker beam assembly (500) is connected to the rear end of the A-pillar inner panel assembly (400), and the front underbody framework outer connecting plate (204) is connected to the rocker beam assembly (500); A center tunnel body (301) is located at the rear side of the front underbody cross beam (203) and extends in the front-rear direction of the vehicle, and the front underbody cross beam (203) and the front underbody framework inner connecting plate (205) are both connected to the center tunnel body (301), and the connection between the front underbody cross beam (203) and the center tunnel body (301) is located in front of the connection between the front underbody framework inner connecting plate (205) and the center tunnel body (301).

5. The front end frame assembly (1000) of claim 4, wherein, The front underbody cross beam (203), the rear section of the longitudinal beam (2012), the front underbody framework inner connecting plate (205), and the center tunnel body (301) form a first annular force transmission structure, and the middle section of the longitudinal beam (2011), the rear section of the longitudinal beam (2012), the front underbody framework outer connecting plate (204), and the A-pillar inner panel assembly (400) form a second annular force transmission structure.

6. The front end frame assembly (1000) of claim 4, wherein, The front end frame assembly (1000) further comprises a battery pack frame (600), the rear end of the rear section of the longitudinal beam (2012) is connected to the battery pack frame (600), the battery pack frame (600) is connected to the rocker beam assembly (500), and the battery pack frame (600) is also connected to the center tunnel body (301).

7. The front end frame assembly (1000) of claim 6, wherein, The battery pack frame (600) is adjacent to or at least partially overlaps with the inner end of the front underbody framework inner connecting plate (205), and the rear section of the longitudinal beam (2012), the front underbody framework inner connecting plate (205), and the battery pack frame (600) form a third annular force transmission structure; the battery pack frame (600) is adjacent to or at least partially overlaps with the outer end of the front underbody framework outer connecting plate (204), and the rear section of the longitudinal beam (2012), the front underbody framework outer connecting plate (204), and the battery pack frame (600) form a fourth annular force transmission structure.

8. The front end frame assembly (1000) of claim 4, wherein, The left and right sides of the center tunnel body (301) are both provided with the front longitudinal beam (201), and the left front longitudinal beam (201) and the right front longitudinal beam (201) are connected through the front underbody cross beam (203).

9. A vehicle characterized by comprising: The front end frame assembly (1000) of any one of claims 4-8 is included.

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