Vehicle body side wall assembly and vehicle

Abstract

The invention provides a vehicle body side wall assembly and a vehicle. The vehicle body side wall assembly comprises a doorsill beam with a cavity and a reinforcing structure arranged in the cavity. The reinforcing structure comprises a front reinforcing part arranged on the front portion of the cavity in the front-back direction of the whole vehicle and a rear reinforcing part arranged on the rear portion of the cavity, the front reinforcing part is connected with the rear reinforcing part, the front reinforcing part is made of aluminum profiles, and the rear reinforcing part is made of nylon and bonded with the doorsill beam through expanded polystyrene foam. According to the vehicle body side wall assembly, the front reinforcing piece made of the aluminum material is arranged on the front portion of the cavity of the threshold beam, the rear reinforcing piece made of the nylon is arranged on the rear portion of the cavity, and the rear reinforcing piece and the threshold beam are bonded together through the expanded polystyrene foam, so that the structural strength and the collision safety of the vehicle body side wall assembly are improved; while the weight increment of the vehicle body side wall assembly is reduced, the heat absorption amount during coating and baking can be reduced, so that the coating process is not influenced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle parts, in particular to a vehicle body side assembly. Meanwhile, the present application also relates to a vehicle provided with the vehicle body side assembly. BACKGROUND

[0002] Frontal crash test and side crash test are two important types of automobile safety crash test, which simulate the vehicle collision in different directions to evaluate the safety performance and occupant protection ability of the vehicle.

[0003] Among them, the frontal crash test of the vehicle is one of the most basic tests in automobile safety crash test. In the test, the vehicle directly collides with the fixed obstacle at a certain speed to evaluate the structural safety performance of the vehicle and the performance of safety devices such as seat belts and airbags. Frontal crash test mainly simulates the situation of two vehicles colliding head-on to evaluate the safety performance of vehicle structure and airbag system. This test can evaluate the strength and deformation of the front structure, as well as the injury of the occupant in the collision.

[0004] Side crash test is usually tested by using a streamlined moving obstacle. In the test, the car collides with the streamlined moving obstacle at a certain speed to simulate the performance of the vehicle in side collision. Side crash test is a more severe test because the side structure of the vehicle is relatively weak and the collision can have a serious impact on the occupant. Side crash test mainly simulates the situation of side collision to evaluate the safety performance of vehicle structure and side airbag system.

[0005] Since the side position of the car is the weakest part of the whole vehicle, there are few components that can disperse impact force, so side crash test is particularly important for evaluating the safety performance of the vehicle. The vehicle body side assembly plays a crucial role in the collision. It is an important part of the whole vehicle body force frame system and should have the necessary strength and stiffness under complex conditions such as impact, torsion, etc.

[0006] In the side collision of the car, the protection of the vehicle body structure to the occupant is particularly difficult because the side position is the weakest part of the whole vehicle. However, by reasonably designing the side assembly and matching the stiffness of each frame member, the safety performance of the car can be effectively improved. In the collision process, the side assembly can disperse the impact force and reduce the harm to the occupant.

[0007] In the prior art, in order to improve the strength of the rocker beam, a sheet metal structure or an SNS (Safe NVH Solution structure) is usually arranged on the rocker beam. The SNS structure is a composite structure formed by a composite material framework and a thermal expansion structure bonded to the cavity section of the vehicle body. The sheet metal reinforcing structure usually needs to add a side rocker beam reinforcing plate, a floor rocker beam reinforcing plate, a rocker beam energy absorption box and the like inside the rocker beam, which will greatly increase the weight of the vehicle body side wall assembly structure. When the whole SNS structure is used as a reinforcing structure, the heat absorption of the plastic material is too large during baking, which causes the electrophoresis liquid to be unable to solidify, thereby affecting the corrosion resistance, and further increasing the risk of abnormal sound. In addition, the SNS structure will also reduce the production rhythm, thereby reducing the production capacity and causing energy waste. SUMMARY

[0008] Therefore, the present application aims to provide a vehicle body side wall assembly to improve the collision safety without affecting the coating process.

[0009] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0010] A vehicle body side wall assembly includes a rocker beam having a cavity, and a reinforcing structure arranged in the cavity. The reinforcing structure includes a front reinforcing member arranged in the front part of the cavity along the front-rear direction of the whole vehicle, and a rear reinforcing member arranged in the rear part of the cavity. The front reinforcing member is connected with the rear reinforcing member, the front reinforcing member is made of aluminum profile, and the rear reinforcing member is made of nylon and is bonded to the rocker beam by foamed glue after expansion.

[0011] Further, the A-pillar and the B-pillar are arranged on the rocker beam in the front-rear direction of the whole vehicle. The front end of the front reinforcing member is arranged at the A-pillar, the rear reinforcing member is arranged at the B-pillar, and the front end of the rear reinforcing member is connected with the front reinforcing member, and the rear end is arranged protruding rearward relative to the B-pillar.

[0012] Further, corresponding to the B-pillar, a protruding part protruding downward is arranged on the rear reinforcing member, and the protruding part is connected with the rocker beam by foamed glue after expansion.

[0013] Further, a plurality of first cavities extending along the left-right direction of the whole vehicle are formed on the rear reinforcing member. The first cavities are arranged in the length and / or height direction of the rear reinforcing member.

[0014] Further, the rear end of the front reinforcing member has an extension part extending rearward, and the extension part is connected with the rear reinforcing member in the left-right direction of the whole vehicle.

[0015] Further, the front reinforcing member has a second cavity which penetrates the front reinforcing member along the length direction of the front reinforcing member; the front end of the rear reinforcing member is provided with an insertion part which is inserted into the cavity, and the insertion part is connected with the front reinforcing member in the vertical direction of the whole vehicle.

[0016] Further, the front reinforcing member has a first partition rib which extends along the left-right direction of the whole vehicle, and a second partition rib which extends along the vertical direction of the whole vehicle, the first partition rib and the second partition rib divide the second cavity into multiple sub-cavities; the insertion part is inserted into the outermost sub-cavity, and / or the innermost sub-cavity penetrates the extension part.

[0017] Further, the thickness of each first partition rib gradually increases from the outside to the inside along the left-right direction of the whole vehicle.

[0018] Further, the rocker beam comprises a rocker beam outer plate and a rocker beam inner plate which are connected by buckling, the rocker beam outer plate is provided with multiple grooves which are arranged at intervals along the length direction of the rocker beam outer plate, the grooves are recessed into the cavity; corresponding to the grooves, the inner and outer sides of the rocker beam outer plate are respectively provided with reinforcing plates, the front reinforcing member and the rear reinforcing member are connected with the rocker beam in the left-right direction of the whole vehicle through fasteners which penetrate the reinforcing plates.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The vehicle body side assembly provided by the present application has the following advantages: the reinforcing structure is arranged in the cavity of the rocker beam, the reinforcing structure comprises a front reinforcing member made of aluminum and located at the front part of the cavity, and a rear reinforcing member made of nylon and located at the rear part of the cavity, and the rear reinforcing member is bonded to the rocker beam by foamed glue after expansion, which is beneficial to improving the structural strength, rigidity and collision safety of the rocker beam, compared with the prior art in which the reinforcing structure is entirely made of sheet metal, the increase in the weight of the vehicle body side assembly is reduced, compared with the prior art in which the reinforcing structure is entirely made of plastic, the structural strength and rigidity of the vehicle body side assembly are improved, and the absorption amount of heat by the rear reinforcing member made of nylon during baking is reduced, so that the coating process is not affected, the process conditions for solidification of the electrophoretic fluid are ensured, the corrosion resistance of the vehicle body side assembly is ensured, and the abnormal noise problem caused by poor corrosion resistance is avoided.

[0021] Furthermore, the front end of the front reinforcing member is arranged at the A pillar, the rear reinforcing member is arranged at the B pillar, the front end of the rear reinforcing member is connected with the front reinforcing member, and the rear end of the rear reinforcing member is arranged rearward relative to the B pillar, which is beneficial to improve the connecting effect between the front reinforcing member and the rear reinforcing member, the structural strength and rigidity of the A pillar and the B pillar, and the dispersion and transmission performance of the collision force, thereby improving the crash performance of the vehicle body side assembly and further reducing the deformation of the seat cross beam in the left-right direction of the vehicle during side collision. The protruding part on the rear reinforcing member is connected with the rocker beam through the expanded foaming glue, which is beneficial to further improve the strength and rigidity of the B pillar and the transmission of the collision force, thereby improving the side crash performance of the vehicle body side assembly. The hollow structure of the plurality of first cavities on the rear reinforcing member can produce a certain deformation and energy absorption effect during collision, reduce the damage of the impact force to the passengers in the vehicle, and further reduce the weight of the rear reinforcing member. The rear end of the front reinforcing member is connected with the rear reinforcing member in the left-right direction of the vehicle through the extending part, which is beneficial to improve the connecting strength between the front reinforcing member and the rear reinforcing member, thereby improving the bending and torsion resistance of the rocker beam.

[0022] In addition, the second cavity is arranged on the front reinforcing member, the hollow structure can produce a certain deformation and energy absorption effect during collision, and the weight of the front reinforcing member is further reduced. The front end of the rear reinforcing member is inserted into the cavity through the insertion part, and the insertion part is connected with the front reinforcing member in the up-down direction of the vehicle, which is also beneficial to further improve the connecting strength between the rear reinforcing member and the front reinforcing member and the connecting reliability during collision. The first reinforcing rib and the second reinforcing rib are arranged, which is beneficial to further improve the structural strength and crash performance of the front reinforcing member. The insertion part is inserted into the outermost sub-cavity, and the innermost sub-cavity penetrates the extending part, which is beneficial to further improve the connecting reliability between the front reinforcing member and the rear reinforcing member.

[0023] Furthermore, the thickness of the first partition rib gradually increases from outside to inside in the left-right direction of the vehicle, which is beneficial to realize the different transverse rigidity of the front reinforcing member, and the rocker beam can better collapse and absorb energy when the vehicle collides, especially when the vehicle collides, thereby improving the collision energy absorption effect of the rocker beam. The recess is arranged to make the fastener as close as possible to the inside of the rocker beam, which is beneficial to prevent the protruding arrangement of the fastener from affecting the delicate appearance of the rocker beam. The two reinforcing plates are connected through the fastener, which is beneficial to further improve the structural strength of the connecting part and make the reinforcing structure have high crash resistance.

[0024] In addition, another object of the present application is to provide a vehicle provided with the vehicle body side assembly as described above.

[0025] The vehicle according to the present application, by virtue of the side body assembly as above, can help to maintain the integrity of the vehicle body during a vehicle collision, and prevent excessive deformation of the vehicle body. Meanwhile, by virtue of the optimized structure of the side body assembly, the intrusion amount into the passenger compartment during a side collision of the vehicle can be reduced, so as to prevent the intrusion amount from being too large to cause extrusion injury to the passengers. Meanwhile, the intrusion speed into the passenger compartment during a side collision of the vehicle can also be reduced, and the impact force on the passengers can be further reduced, so as to improve the safety of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The illustrations are shown schematically in the drawings of the preferred embodiments of the application and the explanations provided serve to explain the application, and are not intended in any way to restrict the application.

[0027] Figure 1 Structure schematic view of the side body assembly according to the embodiment of the present application in one perspective view;

[0028] Figure 2 Structure schematic view of the side body assembly according to the embodiment of the present application in another perspective view;

[0029] Figure 3 Structure schematic view of the internal structure of the side body assembly according to the embodiment of the present application;

[0030] Figure 4 Structure schematic view of the reinforcing structure according to the embodiment of the present application in one perspective view;

[0031] Figure 5 Structure schematic view of the reinforcing structure according to the embodiment of the present application in another perspective view;

[0032] Figure 6 Structure schematic view of the front reinforcing member according to the embodiment of the present application in one perspective view;

[0033] Figure 7 Structure schematic view of the front reinforcing member according to the embodiment of the present application in another perspective view;

[0034] Figure 8 Structure schematic view of the rear reinforcing member according to the embodiment of the present application in one perspective view;

[0035] Figure 9 Structure schematic view of the rear reinforcing member according to the embodiment of the present application in another perspective view;

[0036] Figure 10 Structure schematic view of the outer reinforcing plate and the rocker outer plate according to the embodiment of the present application;

[0037] Figure 11 Structure schematic view of the inner reinforcing plate and the rocker outer plate according to the embodiment of the present application.

[0038] BRIEF DESCRIPTION OF DRAWINGS

[0039] 1, rocker beam; 2, front reinforcement; 3, rear reinforcement; 4, A pillar; 5, B pillar; 6, second connecting piece; 7, first connecting piece;

[0040] 100, cavity; 101, rocker beam outer plate; 1011, groove; 1012, outer reinforcement plate; 1013, inner reinforcement plate; 102, rocker beam inner plate; 1021, recessed part;

[0041] 200, sub-cavity; 201, extension part; 202, first partition rib; 203, second partition rib;

[0042] 300, first cavity; 301, protruding part; 302, rear protruding part; 303, front protruding part; 304, insertion part; 3041, bottom plate; 3042, reinforcing plate; 305, reinforcing rib. DETAILED DESCRIPTION

[0043] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0044] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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 on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present application, it should be noted that the orientation words used in the present embodiment, such as "upper", "lower", "left", "right", "front", "rear", are defined based on the up-down direction, left-right direction and front-rear direction of the automobile. Among them, the up-down direction of the automobile is also the height direction (Z direction) of the automobile, the front-rear direction of the automobile is also the length direction (X direction) of the automobile, and the left-right direction of the automobile is also the width direction (Y direction) of the automobile. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] Furthermore, in the description of the present application, unless otherwise explicitly defined, the terms "mounting", "connecting", "connected", "connection" should be interpreted broadly. For example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in conjunction with the specific circumstances.

[0047] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0048] The present embodiment relates to a vehicle body side assembly which forms a closed force receiving and force transmitting structure with the whole vehicle body parts, helps to maintain the integrity of the vehicle body during a collision, prevents excessive deformation, and can reduce the intrusion amount of the side structure into the passenger compartment, thereby preventing excessive intrusion amount from causing extrusion injury to the passengers. At the same time, the vehicle body side assembly can also reduce the intrusion speed of the side structure into the passenger compartment, further reducing the impact force on the passengers.

[0049] Among them, the rocker beam 1 in the vehicle body side assembly needs to have certain bending and torsional strength to cope with various forces generated during a collision. In order to ensure the performance of the rocker beam 1, the prior art usually provides a reinforcing structure inside the rocker beam 1, which is entirely made of sheet metal, or is entirely made of SNS (Safe NVH Solution structure block), which is a reinforcing structure made of a composite structure of a composite material skeleton and a thermal expansion structure bonded to the cross section of the vehicle body cavity 100. However, both of the above reinforcing structures have disadvantages.

[0050] For example, the reinforcing structure made of sheet metal increases the weight of the vehicle body side assembly, and the reinforcing structure of the SNS structure block absorbs a lot of heat, which affects the curing of the electrophoretic liquid, thereby affecting the corrosion resistance of the test side assembly, and even causing abnormal noise and affecting the comfort of the vehicle.

[0051] The vehicle body side assembly in the present embodiment optimizes the reinforcing structure to improve the collision safety without affecting the coating process. As a whole, as shown in Figure 1 and Figure 2 The vehicle body side assembly includes a rocker beam 1 having a cavity 100, and a reinforcing structure provided in the cavity 100. The reinforcing structure includes a front reinforcing member 2 provided in the front part of the cavity 100 along the front-rear direction of the whole vehicle, and a rear reinforcing member 3 provided in the rear part of the cavity 100. The front reinforcing member 2 is connected with the rear reinforcing member 3, and the front reinforcing member 2 is made of aluminum profile, and the rear reinforcing member 3 is made of nylon, and is bonded together with the rocker beam 1 by foamed glue after expansion.

[0052] The vehicle body side wall assembly described in the embodiment is provided with a reinforcing structure in the cavity 100 of the rocker beam 1, the reinforcing structure comprises a front reinforcing member 2 made of aluminum at the front of the cavity 100 and a rear reinforcing member 3 made of nylon at the rear of the cavity 100, and the rear reinforcing member 3 is bonded to the rocker beam 1 by the foamed adhesive, which is beneficial to improve the structural strength, rigidity and collision safety of the rocker beam 1.

[0053] Compared with the prior art in which the reinforcing structure is made of sheet metal, the vehicle body side wall assembly is beneficial to reduce the increase of the weight of the vehicle body side wall assembly. Compared with the prior art in which the reinforcing structure is made of plastic, the vehicle body side wall assembly is beneficial to improve the structural strength and rigidity of the vehicle body side wall assembly, and the specific heat capacity of aluminum is about 0.88 KJ per kg per 1℃, and the specific heat capacity of nylon is about 1.67 KJ per kg per 1℃, so the aluminum front reinforcing member 2 and the nylon rear reinforcing member 3 cooperate to form an aluminum-plastic hybrid structure, which solves the problem of insufficient baking temperature on the basis of reducing weight. The absorption of heat during baking can also be reduced, so as not to affect the coating process, ensure the curing process conditions of the electrophoretic fluid, and further ensure the corrosion resistance of the vehicle body side wall assembly, and avoid abnormal noise caused by insufficient corrosion.

[0054] As a preferred embodiment, the rocker beam 1 in the embodiment continues to be combined with the front reinforcing member 2 and the rear reinforcing member 3 as shown in Figure 1 and Figure 2 The rocker beam 1 in the embodiment comprises a rocker beam outer plate 101 and a rocker beam inner plate 102 connected by buckling. The rocker beam outer plate 101 is formed by the bottom part of the side wall outer plate, and the cross sections of the rocker beam outer plate 101 and the rocker beam inner plate 102 are both "U" shaped, which is beneficial to form the above-mentioned cavity 100 between them. The rocker beam outer plate 101 is formed by the bottom part of the side wall outer plate, which is beneficial to improve the structural strength and force transmission safety between the side wall outer plate and the rocker beam 1.

[0055] As shown in Figure 1 The vehicle body side wall assembly further comprises an A-pillar 4 and a B-pillar 5 arranged on the rocker beam 1 in the front-rear direction of the whole vehicle. The front end of the front reinforcing member 2 is arranged at the A-pillar 4, the rear reinforcing member 3 is arranged at the B-pillar, the front end of the rear reinforcing member 3 is connected with the front reinforcing member 2, and the rear end is arranged in a rear protruding manner relative to the B-pillar 5. For the convenience of description, the part of the rear end of the rear reinforcing member 3 arranged in a rear protruding manner relative to the B-pillar 5 is referred to as a rear protruding part 302.

[0056] Here, the front end of the front reinforcement 2 is arranged at the A pillar 4, the rear reinforcement 3 is arranged at the B pillar 5, the front end of the rear reinforcement 3 is connected with the front reinforcement 2, and the rear convex portion 302 is arranged convexly rearward relative to the B pillar 5, which is beneficial to improve the connecting effect between the front reinforcement 2 and the rear reinforcement 3, the strength reinforcing effect of the reinforcing structure on the A pillar 4 and the B pillar 5, and the dispersion and transmission of the collision force, thereby improving the crashworthiness of the side body assembly.

[0057] As a feasible implementation, the A pillar 4 and the B pillar 5 each include an inner plate and an outer plate connected by buckling, and the outer plates of the two are formed with the side outer plate. That is, the A pillar 4, the B pillar 5 and the rocker beam 1 are integrally formed with the side outer plate. The inner plate is arranged in the shape of the outer plate, and the structure of the inner plate is not shown in the figure. In specific implementation, the inner plate and the outer plate of the A pillar 4 and the B pillar 5 each have a "U" shape in cross section, which is beneficial to form the force transmission cavity and is convenient for arrangement and implementation. In addition, a plate body can be arranged on the inner plate and / or the outer plate to improve the structural strength and load bearing capacity of the A pillar 4 and the B pillar 5.

[0058] In addition, the top portions of the A pillar 4 and the B pillar 5 are further connected with an upper side beam not shown in the figure, and the A pillar 4, the B pillar 5, the rocker beam 1 and the upper side beam form a ring-shaped force transmission structure therebetween, thereby improving the dispersion and transmission effect of the side body assembly on the collision force. In particular, the front reinforcement 2 and the rear reinforcement 3 are arranged on the rocker beam 1 between the A pillar 4 and the B pillar 5. When the vehicle is subjected to side collision, the rocker beam 1 can disperse and transmit the collision force in the front-rear direction of the vehicle, and transmit the collision force upward in the height direction of the vehicle through the A pillar 4 and the B pillar 5, and improve the dispersion and transmission effect of the collision force through the ring-shaped structure.

[0059] The A pillar 4 and the B pillar 5 in the embodiment are important force transmission structures of the vehicle body, and are arranged to improve the crash safety of the two. As shown in Figure 1 and Figure 2 In the height direction of the vehicle, the width of the bottom of the B pillar 5 is arranged to decrease gradually in the upward direction, so that the width of the bottom of the B pillar 5 is maximum, the rear reinforcement 3 is arranged corresponding to the bottom of the B pillar 5 and is adapted to the specification of the bottom of the B pillar 5, so as to improve the reinforcing effect of the bottom of the B pillar 5. Considering that the B pillar 5 is arranged corresponding to the seat cross beam, by optimizing the structure of the B pillar 5 and the arrangement of the rear reinforcement 3 at the B pillar 5, it is also beneficial to reduce the deformation of the seat cross beam in the left-right direction of the vehicle, thereby increasing the survival space and reducing the harm to the passengers in the vehicle.

[0060] In addition, the corners where the B pillar 5 and the rocker outer plate 101 are connected, and the corners where the A pillar 4 and the rocker outer plate 101 are connected are all rounded and smoothly transitioned. This is conducive to preventing tearing at the connection between the A pillar 4, the B pillar 5, and the rocker outer plate 101 during the transmission of the impact force, thereby improving the crash safety of the rocker 1.

[0061] In this embodiment, the cavities 100 in the rocker 1, and the force transmission cavities in the A pillar 4 and the B pillar 5 not only facilitate lightweight design, but also improve crash safety and optimize the layout of the interior space. Specifically, due to the arrangement of the cavities 100 and the force transmission cavities, the use of materials is more economical than a solid structure, which can effectively reduce the weight of the vehicle body while maintaining sufficient strength and stiffness.

[0062] In addition, the hollow structure can produce a certain deformation and energy absorption effect during a collision, reducing the damage of the impact force to the occupants inside the vehicle. The rocker 1, the A pillar 4, and the B pillar 5 are important structural components of the vehicle body, and they play an important role in protecting the safety of the occupants during a collision. The hollow cavities 100 and force transmission cavities can make them better play this role. At the same time, the space inside the vehicle is limited, and the hollow cavities 100 and force transmission cavities can optimize the layout of the space to provide a better riding and driving experience for passengers and drivers.

[0063] It should be noted that in this embodiment, while ensuring that the hollow cavities 100 and force transmission cavities have advantages in lightweight design, crash safety, and space layout, it is still necessary to ensure the structural strength, stiffness, and stability of the rocker 1, the A pillar 4, and the B pillar 5 to ensure the overall performance and safety performance of the vehicle.

[0064] As shown in the figure, in this embodiment, the front end of the front reinforcement 2 is arranged corresponding to the connection between the A pillar 4 and the rocker 1, and the connection between the rear end of the front reinforcement 2 and the front end of the rear reinforcement 3 is located between the A pillar 4 and the B pillar 5, and is arranged close to the B pillar 5. The arrangement of the positions between the front reinforcement 2, the rear reinforcement 3, the A pillar 4, and the B pillar 5 is conducive to improving the side impact and frontal impact performance of the vehicle body. When the vehicle is subjected to a side impact, the impact force is mainly applied to the B pillar 5, at which time the impact force can be transmitted in the front-rear direction of the vehicle through the rocker 1, and also transmitted upward along the up-down direction of the vehicle through the B pillar 5 and the A pillar 4, thereby improving the dispersion transmission effect of the impact force by the side wall assembly of the vehicle body, and the safety of the vehicle.

[0065] As a preferred embodiment, in the embodiment, corresponding to the B column 5, the rear reinforcing member 3 is provided with a downward protruding protruding portion 301, and the protruding portion 301 is connected to the rocker beam 1 through the expanded foaming glue. In this way, the strength and rigidity of the B column 5 and the transmission of the collision force are further improved, thereby improving the side crash performance of the body side assembly, and the deformation of the seat cross beam in the left-right direction of the vehicle during side collision is further reduced.

[0066] Specifically, as shown in Figure 3 , Figure 8 and Figure 9 , the protruding portion 301 in the embodiment is two protruding portions 301 arranged along the length direction of the rear reinforcing member 3, and the two protruding portions 301 are respectively arranged at the connecting corners of the B column 5 and the rocker beam outer plate 101. The bottom of each protruding portion 301 is connected to the bottom of the rocker beam inner plate 102 through the foaming glue, so as to further improve the collision resistance of the bottom of the B column 5. It can be understood that the position, number and specification of the protruding portion 301 can be adaptively adjusted according to the use requirements during specific implementation.

[0067] The top of the rear reinforcing member 3 in the embodiment is connected to the top of the rocker beam outer plate 101 and the rocker beam inner plate 102 through the foaming glue, the outer side of the rear reinforcing member 3 is connected to the side wall of the rocker beam outer plate 101, and the inner side of the rear reinforcing member 3 is connected to the side wall of the rocker beam inner plate 102. During specific implementation, the foaming glue is coated around the rear reinforcing member 3, so that the foaming glue after expansion is more efficient and better in adhesion to the rocker beam 1, and the strength of the rocker beam 1 is significantly improved. The foaming glue in the embodiment can use the product in the prior art.

[0068] As a feasible embodiment, the rear reinforcing member 3 in the embodiment can use the toughened nylon (also known as toughened nylon modified nylon) in the prior art, the toughened composite material is combined with the structural adhesive, and an arbitrary free-form structure part is manufactured through the injection molding process, and then the structural adhesive is effectively bonded to the sheet metal through deformation to absorb energy, and the weight is about 50% lighter than steel and about 30% lighter than aluminum. For example, the toughened nylon can use reinforced nylon, flame-retardant nylon, toughened nylon, wear-resistant nylon, conductive nylon, etc., which has good impact resistance.

[0069] The structure of the rear reinforcing member 3 in the embodiment is as shown in Figure 3 , Figure 8 and Figure 9As shown in FIG. 1, a plurality of first cavities 300 are formed on the rear reinforcement 3 and extend along the left-right direction of the vehicle. The first cavities 300 are arranged along the length and height of the rear reinforcement 3. The hollow structure of the first cavities 300 can deform and absorb energy during a collision, thereby reducing the impact on the passengers and reducing the weight of the rear reinforcement 3. In addition, the first cavities 300 can collapse during the stress on the rear reinforcement 3, thereby reducing the collision energy and reducing the deformation of the seat beam in the left-right direction of the vehicle, thereby increasing the survival space and reducing the harm to the passengers.

[0070] In detail, the first cavities 300 are arranged in layers in the front-rear direction and the up-down direction of the vehicle, thereby further improving the energy absorption effect. In addition, the cross-sectional area of the first cavities 300 can be square, rectangular, circular, or other geometric shapes, which is convenient to arrange and implement and can ensure the structural strength of the rear reinforcement 3. To further improve the structural strength of the rear reinforcement 3, a plurality of reinforcing ribs 305 can be arranged on the top of the rear reinforcement 3.

[0071] As a preferred embodiment, the rear end of the front reinforcement 2 has an extension portion 201 extending rearward, and the extension portion 201 is connected to the rear reinforcement 3 in the left-right direction of the vehicle. The extension portion 201 is connected to the rear reinforcement 3 in the left-right direction of the vehicle, thereby improving the connection strength between the front reinforcement 2 and the rear reinforcement 3, and the structure of the extension portion 201 is simple and convenient to arrange and implement.

[0072] In detail, referring to Figures 4 to 7 As shown in FIG. 1, the extension portion 201 is arranged close to the rocker inner plate 102, and the front protruding portion 303 is arranged close to the rocker outer plate 101. The extension portion 201 is located inside the front protruding portion 303 in the connected state, and the two are arranged in overlap in the left-right direction of the vehicle. To connect the extension portion 201 and the rear reinforcement 3 in the left-right direction of the vehicle, the first connecting member 7 is arranged on the extension portion 201 and the front protruding portion 303, and the first connecting member 7 connects the extension portion 201 and the front protruding portion 303 together in the left-right direction of the vehicle.

[0073] In detail, the first connecting member 7 includes a bolt arranged through the extension portion 201 and the front protruding portion 303, and a nut connected to the bolt. As a feasible embodiment, the first connecting member 7 is a plurality of members arranged in the up-down direction of the vehicle, for example Figure 8The two first connecting members 7 are matched up and down, which is beneficial to further ensure the connection strength and firmness between the front end of the rear reinforcing member 3 and the rear end of the front reinforcing member 2. The bolt and the nut are simple in structure and convenient to install.

[0074] As shown in Figure 3 As shown in

[0075] As preferred, as shown in Figures 6 to 9 As shown in

[0076] In detail, as shown in Figure 7 As shown in

[0077] Referring to Figure 7As shown in the figure, the second partition rib 203 is two partition ribs arranged in the left-right direction of the vehicle in the second cavity, and the first partition rib 202 is arranged in the middle of the height direction of the second cavity and connected with the two second partition ribs 203 and the side wall of the second cavity. Due to the arrangement of the first partition rib 202 and the second partition rib 203, the cross section of the sub-cavity 200 is rectangular or triangular. Among them, the outermost sub-cavity 200 is arranged in two layers, and the cross section of the upper sub-cavity 200 is triangular, and the cross section of the lower sub-cavity 200 is rectangular. The insertion part 304 is inserted into the lower sub-cavity 200. The cross-sectional area of the sub-cavity 200 is larger, which is beneficial to the insertion of the insertion part 304 and the connection between the insertion part 304 and the rear end of the front reinforcement 2.

[0078] In order to realize the connection between the insertion part 304 and the rear end of the front reinforcement 2, the insertion part 304 is arranged in the rear end of the front reinforcement 2. Figure 8 As shown in the figure, the insertion part 304 includes a bottom plate 3041 arranged at the bottom, and two reinforcing plates 3042 arranged between the bottom plate 3041 and the front end of the rear reinforcement 3 and connected in a staggered manner. As a preferred arrangement, the bottom plate 3041 of the insertion part 304 abuts against the bottom wall of the sub-cavity 200, the left and right sides of the reinforcing plate 3042 can abut against the side walls on the left and right sides of the sub-cavity 200, and the top of the reinforcing plate 3042 abuts against the top wall of the sub-cavity 200, which is beneficial to improve the insertion effect of the insertion part 304 into the corresponding sub-cavity 200. The arrangement of the bottom plate 3041 and the reinforcing plate 3042 in the insertion part 304 in the embodiment can reduce the weight of the insertion part 304 while meeting the connection requirement, thereby facilitating the lightweight design of the body side wall assembly.

[0079] In order to realize the connection between the insertion part 304 and the rear end of the front reinforcement 2, a plurality of second connecting pieces 6 are arranged between the bottom plate 3041 and the rear end of the front reinforcement 2 in the embodiment. As shown in the figure, the second connecting piece 6 can adopt a clamping structure penetrating through the bottom wall and the bottom of the rear end of the front reinforcement 2. Through the cooperation of the two second connecting pieces 6, the connection between the insertion part 304 and the rear end of the front reinforcement 2 is firm.

[0080] In addition, the first connecting piece 7 and the second connecting piece 6 are arranged in the up-down direction of the vehicle and the left-right direction of the vehicle, so that the connection between the rear end of the front reinforcement 2 and the front end of the rear reinforcement 3 is more firm and reliable. Even when the rocker beam 1 bears the side collision force, the rear end of the front reinforcement 2 and the front end of the rear reinforcement 3 are not easily damaged, thereby improving the collision safety of the rocker beam 1.

[0081] Further, as shown in the figure, Figure 7As shown in the figure, in the embodiment, the thickness of each first partition rib 202 gradually increases from outside to inside along the left-right direction of the vehicle. Here, the thickness of the first partition rib 202 gradually increases from outside to inside along the left-right direction of the vehicle, which is beneficial to realize the different lateral stiffness of the front reinforcement 2, and can make the rocker beam 1 better collapse and absorb energy when the vehicle collides, especially when a side collision occurs, thereby improving the energy absorption effect of the rocker beam 1 in a collision.

[0082] In addition, as a feasible implementation manner, as shown in the figure, Figure 11 As shown in the figure, the rocker beam outer plate 101 is provided with a plurality of grooves 1011 arranged at intervals along the length direction of the rocker beam outer plate 101, and the grooves 1011 are recessed into the cavity 100. Corresponding to the grooves 1011, the rocker beam outer plate 101 is provided with a reinforcing plate on the inner and outer sides respectively, and the front reinforcement 2 and the rear reinforcement 3 are connected to the rocker beam 1 in the left-right direction of the vehicle through fasteners penetrating through the reinforcing plates. Among them, the arrangement of the grooves 1011 is beneficial to make the fasteners as close as possible to the inside of the rocker beam 1, thereby preventing the convex arrangement of the fasteners from affecting the delicate appearance of the rocker beam 1. Through the connection of the two reinforcing plates and the fasteners, the structural strength of the connection part is further improved, so that the reinforcing structure has high crashworthiness.

[0083] Among them, the grooves 1011 are arranged at intervals along the length direction of the rocker beam outer plate 101, for example, two grooves 1011 are arranged at intervals corresponding to the front end of the front reinforcement 2, and one groove 1011 is arranged corresponding to the rear end of the front reinforcement 2. The rear convex part 302 corresponding to the middle part and the rear end of the rear reinforcement 3 is provided with a groove 1011. Through the cooperation of multiple grooves 1011, corresponding reinforcing plates and fasteners, the connection firmness between the reinforcing structure and the rocker beam outer plate 101 is further improved, and the reinforcing structure can have good crashworthiness when the rocker beam outer plate 101 bears the collision force. Of course, in specific implementation, the number and position of the connection points between the front reinforcement 2 and the rear reinforcement 3 and the rocker beam outer plate 101 can be adaptively adjusted according to the use requirements.

[0084] For the convenience of description, in the embodiment, the reinforcing plate located on the outside of the rocker beam outer plate 101 is referred to as an outer reinforcing plate 1012, and the reinforcing plate located on the inside of the rocker beam outer plate 101 is referred to as an inner reinforcing plate 1013. In detail, the groove 1011 is rectangular, the groove bottom of the groove 1011 has a middle part located in the middle and a planar middle part, and end part portions located at both ends of the middle part and arranged in an inclined manner, and the two end part portions cooperate to form an outwardly expanding shape. The outer reinforcing plate 1012 is located on the groove bottom of the groove 1011 and has a rectangular shape matching the shape of the groove 1011, and is arranged along the groove bottom of the groove 1011, so that the outer reinforcing plate 1012 can improve the structural strength of the groove 1011.

[0085] The inner reinforcing plate 1013 in the embodiment corresponds to the middle part of the groove bottom, and is arranged to improve the arrangement effect of the inner reinforcing plate 1013 and the outer reinforcing plate 1012 on the rocker beam outer plate 101. Both reinforcing members are fixed on the rocker beam outer plate 101 by welding. Specifically, the inner reinforcing plate 1013 and the outer reinforcing plate 1012 are respectively provided with connecting holes penetrating through the rocker beam outer plate 101, and the inner reinforcing plate 1013 and the outer reinforcing plate 1012 are fixed on the inner and outer sides of the rocker beam outer plate 101 by welding at the inner peripheral walls of the connecting holes.

[0086] The fastener specifically includes a bolt penetrating through the outer reinforcing plate 1012, the rocker beam outer plate 101 and the inner reinforcing plate 1013 in sequence, and a nut arranged on the front reinforcing member 2 or the rear reinforcing member 3 and screwed with the bolt. The head of the bolt abuts against the outer reinforcing plate 1012 and is located in the groove 1011. The fastener adopts the bolt and the nut, and has the advantages of simple structure, convenient arrangement and implementation, and convenient operation.

[0087] In addition, to further improve the connection strength between the front reinforcing member 2 and the rear reinforcing member 3 and the rocker beam 1, as shown in Figure 1 The rocker beam inner plate 102 is provided with a plurality of recessed parts 1021 arranged at intervals along the length direction of the rocker beam inner plate 102, and the recessed parts 1021 are recessed into the cavity 100. The front reinforcing member 2 and the rear reinforcing member 3 are connected to the rocker beam inner plate 102 in the left-right direction of the vehicle through fasteners.

[0088] In specific implementation, the recessed parts 1021 corresponding to the front reinforcing member 2 are two recessed parts arranged at intervals, and the recessed parts 1021 corresponding to the rear reinforcing member 3 are also two recessed parts arranged at intervals. The plurality of recessed parts 1021 and the plurality of grooves 1011 are arranged in a staggered manner in the front-rear direction of the vehicle, which is beneficial to further improve the connection strength between the reinforcing structure and the rocker beam 1. In addition, the fastener includes a bolt penetrating through the recessed part 1021, and a nut arranged on the front reinforcing member 2 or the rear reinforcing member 3 corresponding to the bolt. The connection between the reinforcing structure and the rocker beam inner plate 102 is realized by screwing the bolt and the corresponding nut.

[0089] The front reinforcing member 2 in the embodiment is connected to the rear reinforcing member 3 through the cooperation of the first connecting member 7 and the second connecting member 6, and the front reinforcing member 2 and the rear reinforcing member 3 are respectively connected to the rocker beam outer plate 101 and the rocker beam inner plate 102 through fasteners, and the rear reinforcing member 3 can also be bonded to the rocker beam outer plate 101 and the rocker beam outer plate 101 through the foamed glue applied thereon and expanded, which is beneficial to further improve the connection firmness between the reinforcing structure and the rocker beam 1.

[0090] The vehicle body side wall assembly in the embodiment can improve the bending and torsion resistance of the rocker beam 1 by arranging the front reinforcing member 2 and the rear reinforcing member 3 in the cavity 100 of the rocker beam 1, thereby improving the crashworthiness of the rocker beam 1. When the vehicle is subjected to a side collision, the side wall outer plate, the rocker beam 1, the front reinforcing member 2 and the rear reinforcing member 3 together bear the collision force, which is conducive to meeting the requirements of the collision regulations and ensuring the safety of the vehicle. At the same time, the front reinforcing member 2 made of aluminum profile cooperates with the rear reinforcing member 3 made of nylon, and the front reinforcing member 2 is connected to the rocker beam 1 by fasteners, which can reduce the amount of SNS structure glue blocks and meet the requirements of the existing production line, thereby not affecting the production rhythm.

[0091] In addition, the embodiment also relates to a vehicle provided with the vehicle body side wall assembly as described above.

[0092] The vehicle described in the embodiment can help to maintain the integrity of the vehicle body when the vehicle is subjected to a collision and prevent excessive deformation. At the same time, optimizing the structure of the vehicle body side wall assembly can reduce the intrusion amount of the passenger compartment when the vehicle is subjected to a side collision, thereby preventing excessive intrusion amount from causing extrusion injury to the passengers. At the same time, it can also reduce the intrusion speed of the passenger compartment when the vehicle is subjected to a side collision, further reducing the impact force on the passengers, thereby improving the safety of the vehicle.

[0093] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle body side assembly, characterized in that: a rocker beam (1) having a cavity (100), and a reinforcing structure arranged in the cavity (100); the reinforcing structure comprises a front reinforcing member (2) arranged in a front portion of the cavity (100) along a front-rear direction of the vehicle, and a rear reinforcing member (3) arranged in a rear portion of the cavity (100), the front reinforcing member (2) is connected with the rear reinforcing member (3), the front reinforcing member (2) is made of aluminum profile, and the rear reinforcing member (3) is made of nylon and is bonded with the rocker beam (1) by foamed glue.

2. The vehicle body side assembly according to claim 1, characterized in that: an A-pillar (4) and a B-pillar (5) are arranged on the rocker beam (1) along the front-rear direction of the vehicle; a front end of the front reinforcing member (2) is arranged at the A-pillar (4), the rear reinforcing member (3) is arranged at the B-pillar (5), and a front end of the rear reinforcing member (3) is connected with the front reinforcing member (2) and a rear end of the rear reinforcing member (3) is arranged protruding rearward relative to the B-pillar (5).

3. The vehicle body side assembly according to claim 2, characterized in that: a protruding portion (301) protruding downward is arranged on the rear reinforcing member (3) corresponding to the B-pillar (5), and the protruding portion (301) is connected with the rocker beam (1) by foamed glue.

4. The vehicle body side assembly according to claim 1, characterized in that: a plurality of first cavities (300) extending along a left-right direction of the vehicle are formed on the rear reinforcing member (3); and the first cavities (300) are arranged along a length and / or a height direction of the rear reinforcing member (3).

5. The vehicle body side assembly according to claim 1, characterized in that: a rear end of the front reinforcing member (2) has an extension portion (201) extending rearward, and the extension portion (201) is connected with the rear reinforcing member (3) along the left-right direction of the vehicle.

6. The vehicle body side assembly according to claim 1, characterized in that: the front reinforcing member (2) has a second cavity extending through the front reinforcing member (2) along a length direction of the front reinforcing member (2); and a front end of the rear reinforcing member (3) has an insertion portion (304) inserted into the second cavity, and the insertion portion (304) is connected with the front reinforcing member (2) along an up-down direction of the vehicle.

7. The vehicle body side assembly according to claim 6, characterized in that: the front reinforcing member (2) has a first partition rib (202) extending along the left-right direction of the vehicle and a second partition rib (203) extending along the up-down direction of the vehicle, and the first partition rib (202) and the second partition rib (203) divide the second cavity into a plurality of sub-cavities (200); and the insertion portion (304) is inserted into an outermost sub-cavity (200), and / or an innermost sub-cavity (200) is penetrated by the extension portion (201).

8. The vehicle body side assembly according to claim 7, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The thickness of each first partition rib (202) gradually increases from outside to inside along the left-right direction of the whole vehicle.

9. The body side assembly of any of claims 1-8, characterized in that: The rocker beam (1) comprises a rocker beam outer panel (101) and a rocker beam inner panel (102) connected by buckling, a plurality of grooves (1011) are arranged on the rocker beam outer panel (101) and spaced along the length direction of the rocker beam outer panel (101), and the grooves (1011) are recessed into the cavity (100); Corresponding to the grooves (1011), a reinforcing plate is arranged on the inner and outer sides of the rocker beam outer panel (101), and the front reinforcing member (2) and the rear reinforcing member (3) are connected with the rocker beam (1) in the left-right direction of the whole vehicle through fasteners penetrating through the reinforcing plate.

10. A vehicle, characterized in that: The vehicle is provided with the body side assembly according to any one of claims 1-9.

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