Automobile body side anti-collision structure, automobile body and automobile

Abstract

The utility model relates to an automobile body side face anti-collision structure, an automobile body and an automobile, the automobile body side face anti-collision structure comprises threshold beam assemblies, a seat cross beam assembly and a battery pack cross beam assembly, and the threshold beam assemblies are arranged on the two sides of the automobile body side face anti-collision structure; the two ends of the seat cross beam assembly are connected with the doorsill beam assemblies on the two sides of the vehicle body side face anti-collision structure correspondingly. The battery pack cross beam assembly is connected below the seat cross beam assembly, and the seat cross beam assembly and the battery pack cross beam assembly are in T-shaped connection. The two ends of the seat cross beam assembly are connected with the threshold beam assemblies on the two sides of the vehicle body side face anti-collision structure correspondingly, and an I-shaped force transmission structure is formed. The seat cross beam assembly and the battery pack cross beam assembly are in T-shaped connection, and the intrusion amount of a battery pack and a vehicle body can be reduced through collision impact of a T-shaped connecting structure over against the side face; the connection mode can also improve the bending resistance of the seat cross beam assembly and the battery pack cross beam assembly, so that adverse effects on the living space of passengers in the vehicle or the safety of the battery pack are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of automobile collision, and in particular to a vehicle body side anti-collision structure, a vehicle body and a vehicle. Background Art

[0002] As people's living standards improve, more and more families use cars as a regular means of transportation for family travel. When buying cars, people pay more and more attention to the collision safety performance of cars.

[0003] According to relevant research, among traffic accidents involving automobile collisions, frontal collisions and side collisions are the most common, accounting for more than 70% of the total number of accidents. Although the incidence of automobile side collisions is not as high as that of frontal collisions, the proportion of occupant injuries and deaths is as high as 27%, making it the main type of accident that causes casualties to vehicle occupants.

[0004] With the popularity of new energy vehicles, people are paying more and more attention to the safety performance of battery packs during car collisions. In side collision accidents, the seat beam is the main structure for transmitting force on the side of the car body. When the side of the car body is hit, the seat beam is easily bent and deformed due to the impact force. The seat beam can no longer transmit force after being arched due to the collision. When the seat beam arches upward, it will affect the living space of the driver and passengers in the accident. If it arches downward, it will directly poke the battery pack and affect the safety of the battery pack. Utility Model Content

[0005] One of the purposes of the present application is to provide a side anti-collision structure for the vehicle body to solve the problem in the prior art that the seat beam is easily arched due to the force of side collision, affecting the living space of the occupants or the safety of the battery pack; the second purpose is to provide a vehicle body; and the third purpose is to provide a car.

[0006] In order to achieve the above purpose, the technical solution adopted in this application is as follows:

[0007] A vehicle body side anti-collision structure, comprising:

[0008] A threshold beam assembly, wherein the threshold beam assembly is arranged on both sides of the vehicle body side anti-collision structure;

[0009] A seat crossbeam assembly, the two ends of which are respectively connected to the threshold beam assemblies on both sides of the vehicle body side anti-collision structure;

[0010] A battery pack crossbeam assembly, wherein the battery pack crossbeam assembly is connected below the seat crossbeam assembly, and the seat crossbeam assembly and the battery pack crossbeam assembly are connected in a T-shape.

[0011] According to the above technical means, the two ends of the seat crossbeam assembly are respectively connected to the threshold beam assemblies on both sides of the side anti-collision structure of the vehicle body to form an I-shaped force transmission structure. When the threshold beam assembly on either side is impacted by a side collision, the force can be transmitted to the seat crossbeam assembly, making the seat crossbeam assembly the main force transmission structure. The seat crossbeam assembly and the battery pack crossbeam assembly are connected in a T-shape, which can improve the bending resistance of the seat crossbeam assembly, that is, when the seat crossbeam assembly arches upward or downward, the battery pack crossbeam assembly will play a blocking role to avoid adverse effects on the survival space of the occupants in the vehicle or the safety of the battery pack. The seat crossbeam assembly and the battery pack crossbeam assembly are coupled into a T-shaped connection structure, and the two affect each other. When a side collision occurs, the T-shaped section of the T-shaped connection structure faces the collision object, which can improve the impact resistance and bending resistance of the seat crossbeam assembly and the battery pack crossbeam assembly, and reduce the intrusion of the battery pack and the vehicle body.

[0012] Furthermore, the threshold beam assembly includes a threshold beam body and a cross beam connecting assembly, and the cross beam connecting assembly is respectively connected to the threshold beam body and the seat cross beam assembly.

[0013] According to the above technical means, the crossbeam connecting assembly is respectively connected to the threshold beam main body and the seat crossbeam assembly, which can realize a fixed connection between the threshold beam main body and the seat crossbeam assembly, form a stable force transmission path, and at the same time avoid the force transmission path breakage between the threshold beam main body and the seat crossbeam assembly due to poor welding effect.

[0014] Furthermore, the crossbeam connecting assembly includes an integrally formed covering plate and a first connecting plate, the covering plate is connected to the end of the seat crossbeam assembly, and the covering plate covers the outer side of the end of the seat crossbeam assembly, and the first connecting plate is connected to the threshold beam body.

[0015] According to the above technical means, the covering plate and the first connecting plate are an integrally formed structure, which can improve the connection reliability between the covering plate and the first connecting plate. The covering plate covers the outer side of the end of the seat cross beam assembly, which can increase the contact area between the cross beam connecting assembly and the seat cross beam assembly, and realize a stable connection between the covering plate and the end of the seat cross beam assembly. The first connecting plate is connected to the sill beam body, and the force transmission between the seat cross beam assembly and the sill beam body is realized through the cross beam connecting assembly.

[0016] Furthermore, the seat cross beam assembly includes a connected seat cross beam body and a second connecting plate, the cross section of the seat cross beam body is an "X"-shaped structure, and the second connecting plate has a support plate connected to the inner side of the "X"-shaped structure.

[0017] According to the above technical means, the cross section of the seat cross beam body is an "X"-shaped structure, and a hollow cavity can be formed at the lower part of the seat cross beam body to improve the bending resistance of the seat cross beam body. The second connecting plate has a support plate connected to the inner side of the "X"-shaped structure, which can be used to improve the structural strength of the "X"-shaped structure and prevent the hollow cavity formed at the lower part of the seat cross beam body from being dented when subjected to force.

[0018] Furthermore, the second connecting plate has a connecting hole arranged opposite to the battery pack crossbeam assembly, and the seat crossbeam body has a through hole arranged corresponding to the connecting hole.

[0019] According to the above technical means, the seat crossbeam main body has a through hole corresponding to the connecting hole, so as to facilitate the insertion of the second connecting member from above the seat crossbeam assembly. The second connecting member passes through the through hole and is inserted into the connecting hole, thereby realizing the connection between the second connecting plate and the battery pack crossbeam assembly, thereby realizing the connection between the seat crossbeam assembly and the battery pack crossbeam assembly.

[0020] Furthermore, the connection hole is provided with a nut coaxially arranged with the connection hole.

[0021] According to the above technical means, the connection reliability between the second connecting member and the second connecting plate can be improved by the nut to avoid relative movement between the second connecting member and the second connecting plate, and the second connecting member can also be guided by the nut so that the second connecting member can be screwed into the threaded holes on the nut and the battery pack cross beam assembly in turn.

[0022] Furthermore, the battery pack cross beam assembly includes a battery pack cross beam body, and the battery pack cross beam body has a connecting portion arranged opposite to the seat cross beam assembly.

[0023] According to the above technical means, the second connecting member can be inserted into the connecting portion to achieve a fixed connection between the seat cross beam assembly and the battery pack cross beam assembly.

[0024] Furthermore, the connecting portion is provided with a connecting sleeve, and the connecting sleeve has a threaded hole.

[0025] According to the above technical means, the connecting sleeve is embedded in the battery pack cross beam body and fixedly connected to the battery pack cross beam body. The connecting sleeve has a threaded hole, which can be used for threaded connection with the second connecting piece. This can avoid increasing the weight of the battery pack cross beam body when the area where the connecting part is located is set as a solid structure, and can also achieve a reliable connection between the seat cross beam assembly and the battery pack cross beam assembly.

[0026] Furthermore, the battery pack cross beam assembly also includes a reinforcing rib structure arranged inside the battery pack cross beam body.

[0027] According to the above technical means, the structural strength of the battery pack crossbeam body is improved by reinforcing the rib structure, and the deformation resistance of the battery pack crossbeam body when subjected to a collision is improved, thereby achieving reliable support for the battery pack and the seat crossbeam assembly.

[0028] A vehicle body includes the above-mentioned vehicle body side anti-collision structure and also includes a seat floor, the threshold beam assembly and the seat cross beam assembly are both connected to the seat floor, and the battery pack cross beam assembly is arranged below the seat floor.

[0029] According to the above technical means, the side anti-collision structure of the vehicle body can be arranged in the vehicle body, which facilitates the installation of seats and battery packs in the vehicle body.

[0030] A car comprises the above-mentioned car body.

[0031] Beneficial effects of this application:

[0032] (1) In the present application, the seat cross beam assembly and the battery pack cross beam assembly are connected in a T-shape. In the length direction of the battery pack cross beam assembly, the cross-sectional shape of the connection between the battery pack cross beam assembly and the seat cross beam assembly is a T-shaped cross section. When a side collision occurs, the T-shaped cross section faces the collision object, which can enhance the impact resistance of the seat cross beam assembly and the battery pack cross beam assembly.

[0033] (2) In the present application, since the seat beam assembly and the battery pack beam assembly are coupled on the side of the vehicle body to form a T-shaped connection structure, the two interact with each other, which can improve the bending resistance of the seat beam assembly and the battery pack beam assembly. When subjected to a side collision, the stability of the seat beam assembly and the battery pack beam assembly can be maintained, and the deformation of the battery pack and the seat beam assembly can be greatly reduced. During the collision test, the battery pack safety can be protected and the damage to the collision dummy can be reduced in the side column collision condition. When the automobile with the vehicle body side anti-collision structure of the present application is used for normal travel, once a side collision traffic accident occurs, since the seat beam assembly and the battery pack beam assembly both have good bending resistance, the seat beam assembly and the battery pack beam assembly can be prevented from arching upward or downward, which is beneficial to protecting the living space of the people in the car and avoiding battery pack safety issues. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A side view of the vehicle body side impact protection structure provided in an embodiment of the present application (the sill beam assembly is not shown);

[0035] Figure 2 A schematic diagram of a partial structure of a vehicle body side anti-collision structure provided in an embodiment of the present application;

[0036] Figure 3 A partial top view of a vehicle body provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a beam connection assembly provided in an embodiment of the present application;

[0038] Figure 5 A bottom view of the second connecting plate provided in an embodiment of the present application;

[0039] Figure 6 A connection diagram of a connecting sleeve provided in an embodiment of the present application;

[0040] Figure 7 The embodiment of the present application provides Figure 3 Sectional view of AA.

[0041] Among them, 1-sill beam assembly; 11-sill beam body; 12-crossbeam connection assembly; 121-cladding plate; 122-first connecting plate; 123-first connecting piece; 2-seat crossbeam assembly; 21-seat crossbeam body; 211-through hole; 22-second connecting plate; 221-support plate; 222-connecting hole; 223-nut; 224-second connecting piece; 3-battery pack crossbeam assembly; 31-battery pack crossbeam body; 311-connecting part; 32-reinforcement rib structure; 4-seat floor; 5-battery pack bottom plate. DETAILED DESCRIPTION

[0042] The following will describe the implementation methods of the present application with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, not for limiting the scope of protection of the present application.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0044] See also Figures 1 to 7 The embodiment of the present application proposes a vehicle body side anti-collision structure, including a door sill beam assembly 1, a seat cross beam assembly 2 and a battery pack cross beam assembly 3. The door sill beam assembly 1 is arranged on both sides of the vehicle body side anti-collision structure, such as Figure 3When the side of the vehicle body is hit, the rocker beam assembly 1 can first bear part of the impact force. In order to improve the structural strength of the rocker beam assembly 1 and reduce the deformation of the side of the vehicle body and the amount of vehicle body intrusion, an energy absorbing structure or a reinforcing rib plate and other components can be set inside the rocker beam assembly 1.

[0045] The two ends of the seat crossbeam assembly 2 are respectively connected to the threshold beam assembly 1 on both sides of the vehicle body side anti-collision structure to form an I-shaped force transmission structure, such as Figure 3 When the sill beam assembly 1 on either side is impacted by a side collision, the force can be transmitted to the seat cross beam assembly 2, making the seat cross beam assembly 2 the main force transmission structure.

[0046] The battery pack cross beam assembly 3 is connected to the bottom of the seat cross beam assembly 2, and the seat cross beam assembly 2 and the battery pack cross beam assembly 3 are connected in a T shape. Figure 1 As shown. The length direction of the battery pack beam assembly 3 is parallel to the length direction of the seat beam assembly 2. In the length direction of the battery pack beam assembly 3, the cross-sectional shape of the connection between the battery pack beam assembly 3 and the seat beam assembly 2 is a T-shaped cross-section, which can improve the bending resistance of the seat beam assembly 2. That is, when the seat beam assembly 2 arches upward or downward, the battery pack beam assembly 3 will play a blocking role. That is, the seat beam assembly 2 and the battery pack beam assembly 3 are connected, thereby coupling into a T-shaped connection structure, and the two influence each other to form a stable topological relationship (that is, spatial correlation). In the event of a side collision, the T-shaped cross-section faces the collision object, which can improve the impact resistance of the seat beam assembly 2 and the battery pack beam assembly 3.

[0047] It should be noted that the battery pack cross beam assembly 3 is arranged inside the battery pack, with its two ends connected to the battery pack frame and the bottom connected to the battery pack bottom plate 5, which can improve the structural strength of the battery pack itself. The battery pack cross beam assembly 3 is connected to the bottom of the seat cross beam assembly 2, and together with the seat cross beam assembly 2, it becomes the main force transmission structure for side collision impact, which can prevent the seat cross beam assembly 2 or the battery pack cross beam assembly 3 from arching, which is beneficial to protecting the survival space of the driver and passengers in the car, and can also prevent the seat cross beam assembly 2 and the battery pack from being damaged.

[0048] When the pack crossbeam assembly 3 arches downward, it punctures the battery pack, causing a battery pack safety problem.

[0049] When conducting a side impact test, the T-shaped section is used to avoid obstacles by facing the rigid column in the side column impact condition, thereby reducing the risk of arching of the seat crossbeam assembly 2 at the lowest cost, maintaining the stability of the seat crossbeam assembly 2 and the battery pack crossbeam assembly 3, and reducing the deformation of the battery pack and the seat crossbeam assembly 2, thereby protecting the battery pack and reducing the damage to the collision dummy in the side column impact condition.

[0050] In the above embodiment, the connection between the threshold beam assembly 1 and the seat cross beam assembly 2 can be achieved by welding. When there is a difference in the materials of the two and the welding connection effect is not good, the connection can also be achieved by bolts and other components.

[0051] In some embodiments of this application, please refer to Figure 3 and Figure 4 The threshold beam assembly 1 includes a threshold beam body 11 and a crossbeam connecting assembly 12. The crossbeam connecting assembly 12 is respectively connected to the threshold beam body 11 and the seat crossbeam assembly 2, so as to realize a fixed connection between the threshold beam body 11 and the seat crossbeam assembly 2, thereby forming a stable force transmission path. Meanwhile, the force transmission path between the threshold beam body 11 and the seat crossbeam assembly 2 can be prevented from being broken due to poor direct welding effect.

[0052] In some embodiments of this application, please refer to Figure 4 The cross beam connection assembly 12 includes an integrally formed covering plate 121 and a first connecting plate 122. The covering plate 121 is connected to the end of the seat cross beam assembly 2, and the covering plate 121 covers the outer side of the end of the seat cross beam assembly 2. Figure 3 As shown, the contact area between the cross beam connection assembly 12 and the seat cross beam assembly 2 can be increased, and the cover plate 121 can be stably connected to the end of the seat cross beam assembly 2. The first connecting plate 122 is connected to the sill beam body 11, and the force transmission between the seat cross beam assembly 2 and the sill beam body 11 is achieved through the cross beam connection assembly 12.

[0053] It should be noted that the covering plate 121 and the first connecting plate 122 are an integrally formed structure, which can improve the connection reliability between the covering plate 121 and the first connecting plate 122. Figure 4 As shown. The covering plate 121 and the first connecting plate 122 are both provided with a first connecting member 123, which is used to achieve fixed connection between the covering plate 121 and the seat cross beam assembly 2, and between the first connecting plate 122 and the sill beam body 11. Specifically, the first connecting member 123 is a connecting bolt, and there are multiple of them. The covering plate 121, the first connecting plate 122, the sill beam body 11 and the seat cross beam assembly 2 are all provided with mounting holes for installing the connecting bolts.

[0054] In some embodiments of this application, please refer to Figure 1 and Figure 2 The seat cross beam assembly 2 includes a seat cross beam body 21 and a second connecting plate 22 connected to each other. The cross section of the seat cross beam body 21 is an "X"-shaped structure, and a hollow cavity can be formed at the lower part of the seat cross beam body 21 to improve the bending resistance of the seat cross beam body 21. The second connecting plate 22 has a support plate 221 connected to the inner side of the "X"-shaped structure, which can be used to improve the structural strength of the "X"-shaped structure and prevent the hollow cavity formed at the lower part of the seat cross beam body 21 from being sunken when subjected to force.

[0055] In some embodiments of the present application, the seat cross beam body 21 is a through-type uniform cross-section design, which can avoid reducing the bulge of the middle channel and avoid the instability of the seat due to the discontinuous force transmission of the seat cross beam body 21. Figure 1 and Figure 2 shown.

[0056] In some embodiments of the present application, the cross-section of the second connecting plate 22 is a Z-shaped structure, the top horizontal plate of the Z-shaped structure is connected to the bottom of the "J"-shaped structure, and the vertical plate in the Z-shaped structure is supported under the seat cross beam body 21 to provide an upward support force for the seat cross beam body 21, such as Figure 1 Specifically, the vertical plate body in the Z-shaped structure is located between the two side plates of the X-shaped structure, and can support the top of the X-shaped structure.

[0057] In some embodiments of this application, please refer to Figure 3 , Figure 5 and Figure 7 The second connecting plate 22 has a connecting hole 222 arranged opposite to the battery pack cross beam assembly 3, which is used to place the second connecting member 224 into the connecting hole 222 to achieve a fixed connection between the second connecting plate 22 and the battery pack cross beam assembly 3. The seat cross beam body 21 has a through hole 211 arranged corresponding to the connecting hole 222, so as to facilitate the placement of the second connecting member 224 from above the seat cross beam assembly 2. The second connecting member 224 passes through the through hole 211 and is inserted into the connecting hole 222, which can achieve the connection between the second connecting plate 22 and the battery pack cross beam assembly 3, thereby achieving the connection between the seat cross beam assembly 2 and the battery pack cross beam assembly 3.

[0058] It should be noted that when the second connecting member 224 is a connecting bolt, the battery pack cross beam assembly 3 is provided with a threaded hole matching the second connecting member 224. In order to enable the second connecting member 224 to be accurately inserted into the threaded hole of the battery pack cross beam assembly 3, a corresponding guide structure can be provided at the connecting hole 222.

[0059] In some embodiments of this application, please refer to Figure 3 and Figure 5 The connection hole 222 has a nut 223 coaxially arranged with the connection hole 222, and the nut 223 is coaxially arranged with the threaded hole correspondingly arranged on the battery pack cross beam assembly 3. When the second connection member 224 is screwed into the nut 223, the connection reliability between the second connection member 224 and the second connection plate 22 can be improved by the nut 223 to avoid relative movement between the second connection member 224 and the second connection plate 22, and the second connection member 224 can also be connected and guided by the nut 223, so that the second connection member 224 is screwed into the nut 223 and the threaded hole on the battery pack cross beam assembly 3 in turn.

[0060] Specifically, the nut 223 can be fixedly arranged at the connection hole 222 by welding or the like, so that a reliable fixed connection is formed between the nut 223 and the second connection plate 22. When there are multiple connection holes 222, the multiple nuts 223 are arranged in a one-to-one correspondence with the multiple connection holes 222, and the multiple through holes 211 are also arranged in a one-to-one correspondence with the multiple connection holes 222.

[0061] As a specific embodiment of the present application, four connection holes 222 are sequentially provided along the length direction of the second connection plate 22, and the four connection holes 222 are symmetrically arranged on the left and right sides of the second connection plate 22, such as Figure 5 As shown, it can form a symmetrical connection with the battery pack cross beam assembly 3, such as Figure 3 , Figure 5 and Figure 7 shown.

[0062] In the above embodiment, the seat cross beam assembly 2 is a stamped thermoformed (i.e., hot stamping) sheet metal part. When the hot stamping forming process is adopted, a sheet metal part with a thin thickness but high strength can be obtained, which is beneficial to reducing the weight of the seat cross beam assembly 2 while ensuring the structural strength of the seat cross beam assembly 2.

[0063] In some embodiments of the present application, please refer to FIG. Figure 1 , Figure 2 and Figure 7 The battery pack cross beam assembly 3 includes a battery pack cross beam body 31, and the battery pack cross beam body 31 has a connecting portion 311 arranged opposite to the seat cross beam assembly 2. The second connecting member 224 can be inserted into the connecting portion 311 to achieve a fixed connection between the seat cross beam assembly 2 and the battery pack cross beam assembly 3.

[0064] It should be noted that when the second connecting member 224 is a connecting bolt, a threaded hole matching the second connecting member 224 is provided in the connecting portion 311 .

[0065] In some embodiments of the present application, in order to ensure the continuity of force transmission of the battery pack cross beam body 31, the battery pack cross beam body 31 is also designed with a through-type equal cross-section and is formed by extrusion of aluminum alloy. This can ensure the structural strength of the battery pack cross beam body 31 while reducing the weight of the battery pack cross beam body 31, thereby reducing the overall weight of the battery pack, which is conducive to achieving lightweight products.

[0066] When connecting the battery pack cross beam body 31 with other components in the battery pack, since the battery pack case is usually made of aluminum alloy, both ends of the battery pack cross beam body 31 can be connected to the battery pack case by welding, and can be connected to the battery pack bottom plate 5 by welding, FDS (hot melt self-tapping technology) or riveting, so as to form a stable support inside the battery pack, such as Figure 7shown.

[0067] In some embodiments of the present application, due to the presence of a cavity in the battery pack beam body 31, a continuous threaded hole wall cannot be directly formed inside the battery pack beam body 31, which is not conducive to ensuring the reliability of the connection between the second connecting member 224 and the battery pack beam body 31. However, by completely preparing the area where the connecting portion 311 is located as a solid structure to facilitate drilling of threaded holes, the quality of the battery pack beam body 31 is greatly improved.

[0068] In order to solve the above problems, in some embodiments of the present application, the connecting portion 311 is provided with a connecting sleeve, which is embedded in the battery pack cross beam body 31 and fixedly connected to the battery pack cross beam body 31. The connecting sleeve has a threaded hole, which can be used for threaded connection with the second connecting member 224. This can avoid increasing the weight of the battery pack cross beam body 31 when the area where the connecting portion 311 is located is set as a solid structure, and can also achieve a reliable connection between the seat cross beam assembly 2 and the battery pack cross beam assembly 3.

[0069] It should be noted that the connecting sleeve is arranged in a one-to-one correspondence with the connecting hole 222 in the second connecting plate 22, thereby forming multiple connection points in the length direction of the seat beam assembly 2, thereby improving the connection reliability and stability between the seat beam assembly 2 and the battery pack beam assembly 3.

[0070] In some embodiments of this application, please refer to Figure 1 and Figure 2 The battery pack cross beam assembly 3 also includes a reinforcing rib structure 32 arranged inside the battery pack cross beam body 31, which is used to improve the structural strength of the battery pack cross beam body 31 and improve the deformation resistance of the battery pack cross beam body 31 when it is subjected to a collision, thereby achieving reliable support for the battery pack and the seat cross beam assembly 2.

[0071] It should be noted that the reinforcing rib structure 32 may include a plurality of reinforcing rib plates, which are located inside the cavity of the battery pack cross beam body 31 and may extend along the length direction or width direction of the battery pack cross beam body 31. A hollow area is provided in the interference area between the reinforcing rib plates and the connecting sleeve, and the edge of the hollow area and the outer wall of the connecting sleeve may be fixedly connected by welding or the like, thereby improving the connection reliability between the connecting sleeve and the battery pack cross beam body 31.

[0072] As a specific embodiment of the present application, when the number of the connecting holes 222 and the number of the nuts 223 are both four, four connecting sleeves are embedded in the battery pack cross beam body 31, and the four connecting sleeves are sequentially arranged along the length direction of the battery pack cross beam body 31, which can be used to achieve corresponding connection with the four second connecting members 224 in the seat cross beam assembly 2, such as Figure 6 and Figure 7 shown.

[0073] The embodiment of the present application also proposes a vehicle body, including the vehicle body side anti-collision structure in the above embodiment, and also including a seat floor 4, wherein the threshold beam assembly 1 and the seat cross beam assembly 2 are both connected to the seat floor 4, wherein the threshold beam assembly 1 is arranged on the left and right sides of the seat floor 4, and the seat cross beam assembly 2 is arranged above the seat floor 4, and while being connected to form a side collision force transmission structure, an installation area is provided for the installation of the seat in the vehicle. The battery pack cross beam assembly 3 is arranged below the seat floor 4, and a through hole is provided on the seat floor 4 for the second connecting member 224 to pass through, so that the seat cross beam assembly 2 and the battery pack cross beam assembly 3 can be connected on the upper and lower sides of the seat floor 4. The vehicle body side anti-collision structure can be arranged in the vehicle body, and the installation of the seat and the battery pack in the vehicle body can be facilitated.

[0074] As a specific embodiment of the present application, the seat crossbeam assembly 2 is a front seat rear crossbeam in the vehicle body, and the seat floor 4 is a front floor

[0075] The seat cross beam body 21 and the second connecting plate 22 in the seat cross beam assembly 2 are welded to the seat floor 4 by flanging. Both ends of the seat cross beam assembly 2 are fixedly connected to the threshold beam body 11 by the cross beam connecting assembly 12, so as to form a stable seat support structure and side anti-collision structure.

[0076] The embodiment of the present application also proposes a car, including the car body in the above embodiment. In the collision test of the car, since the seat beam assembly 2 and the battery pack beam assembly 3 are coupled on the side of the car body to form a T-shaped connection structure, the two interact with each other, which can improve the bending resistance of the seat beam assembly 2 and the battery pack beam assembly 3. When subjected to a side collision, the stability of the seat beam assembly 2 and the battery pack beam assembly 3 can be maintained, and the deformation of the battery pack and the seat beam assembly 2 can be greatly reduced, thereby protecting the safety of the battery pack in the side column collision condition and reducing the damage to the collision dummy. When the car is used for normal travel, once a side collision traffic accident occurs, since the seat beam assembly 2 and the battery pack beam assembly 3 both have good bending resistance, the seat beam assembly 2 and the battery pack beam assembly 3 can be prevented from arching upward or downward, which is beneficial to protecting the living space of the people in the car and avoiding battery pack safety issues.

[0077] See also Figures 1 to 7 In some embodiments of the present application, the assembly process of the above-mentioned vehicle body is as follows:

[0078] Step 1: Weld the seat crossbeam assembly 2 above the seat floor 4, weld the threshold beam body 11 to the left and right sides of the seat floor 4, and set the crossbeam connecting assembly 12 at the left and right ends of the seat crossbeam assembly 2 to achieve the connection between the seat crossbeam assembly 2 and the threshold beam body 11;

[0079] Step 2: Set the battery pack crossbeam assembly 3 under the seat floor 4, align the connecting hole 222, the nut 223 and the threaded hole in the connecting sleeve, extend the second connecting member 224 downward in the vertical direction into the through hole 211 of the seat crossbeam body 21, and screw the second connecting member 224 into the nut 223 and the connecting sleeve in turn to achieve a fixed connection between the seat crossbeam assembly 2 and the battery pack crossbeam assembly 3.

[0080] The present application connects the seat cross beam assembly 2 and the battery pack cross beam assembly 3 in a T-shape, so that the seat cross beam assembly 2 and the battery pack cross beam assembly 3 can form a T-shaped cross section in the force direction of the side collision. When the T-shaped cross section faces the side collision object, the risk of the seat cross beam assembly 2 arching can be reduced at the lowest cost, the seat cross beam assembly 2 and the battery pack cross beam assembly 3 can be maintained stable, and the deformation of the battery pack and the seat cross beam assembly 2 can be directly reduced, thereby ensuring the safety of the battery pack in the side column collision condition, reducing the damage to the collision dummy in the collision test, and reducing the test cost. In the actual driving process, if the car encounters a side collision traffic accident, the T-shaped connection structure formed by the coupling of the seat cross beam assembly 2 and the battery pack cross beam assembly 3 has good bending resistance, which can prevent the seat cross beam assembly 2 and the battery pack cross beam assembly 3 from arching due to the collision force, causing adverse effects on the living space of the driver and passengers or the safety of the battery pack.

[0081] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present application is within the protection scope of the present application.

Claims

1. A vehicle body side anti-collision structure, characterized in that: include: A sill beam assembly (1), the sill beam assembly (1) being arranged on both sides of the vehicle body side anti-collision structure; A seat crossbeam assembly (2), wherein two ends of the seat crossbeam assembly (2) are respectively connected to the threshold beam assemblies (1) on both sides of the vehicle body side anti-collision structure; A battery pack crossbeam assembly (3), wherein the battery pack crossbeam assembly (3) is connected below the seat crossbeam assembly (2), and the seat crossbeam assembly (2) and the battery pack crossbeam assembly (3) are connected in a T-shape.

2. The vehicle body side impact protection structure according to claim 1, characterized in that: The threshold beam assembly (1) comprises a threshold beam main body (11) and a cross beam connection assembly (12), wherein the cross beam connection assembly (12) is respectively connected to the threshold beam main body (11) and the seat cross beam assembly (2).

3. The vehicle body side impact protection structure according to claim 2, characterized in that: The cross beam connection assembly (12) comprises an integrally formed covering plate (121) and a first connecting plate (122); the covering plate (121) is connected to the end of the seat cross beam assembly (2), and the covering plate (121) covers the outer side of the end of the seat cross beam assembly (2); and the first connecting plate (122) is connected to the door sill beam body (11).

4. The vehicle body side impact protection structure according to claim 1, characterized in that: The seat crossbeam assembly (2) comprises a connected seat crossbeam body (21) and a second connecting plate (22); the cross section of the seat crossbeam body (21) is an "X"-shaped structure; and the second connecting plate (22) has a supporting plate (221) connected to the inner side of the "X"-shaped structure.

5. The vehicle body side impact protection structure according to claim 4, characterized in that: The second connecting plate (22) has a connecting hole (222) arranged opposite to the battery pack crossbeam assembly (3), and the seat crossbeam body (21) has a through hole (211) arranged corresponding to the connecting hole (222).

6. The vehicle body side impact protection structure according to claim 5, characterized in that: The connection hole (222) is provided with a nut (223) coaxially arranged with the connection hole (222).

7. The vehicle body side impact protection structure according to any one of claims 1 to 6, characterized in that: The battery pack cross beam assembly (3) comprises a battery pack cross beam body (31), and the battery pack cross beam body (31) has a connecting portion (311) arranged opposite to the seat cross beam assembly (2).

8. The vehicle body side impact protection structure according to claim 7, characterized in that: The connecting portion (311) is provided with a connecting sleeve, and the connecting sleeve has a threaded hole.

9. The vehicle body side impact protection structure according to claim 7, characterized in that: The battery pack cross beam assembly (3) further comprises a reinforcing rib structure (32) arranged inside the battery pack cross beam body (31).

10. A vehicle body, comprising the vehicle body side impact protection structure according to any one of claims 1 to 9, characterized in that: It also includes a seat floor (4), the threshold beam assembly (1) and the seat cross beam assembly (2) are both connected to the seat floor (4), and the battery pack cross beam assembly (3) is arranged below the seat floor (4).

11. A car, characterized in that: Comprising the vehicle body as claimed in claim 10.

Images