Skateboard chassis vehicle body boundary beam structure and vehicle

Abstract

The invention provides a sliding plate chassis vehicle body boundary beam structure and a vehicle. The sliding plate chassis vehicle body boundary beam structure comprises a vehicle body boundary beam and a sliding plate chassis. The sliding plate chassis comprises an upper edge beam, a lower edge beam, a cross beam parallel to the upper edge beam, a first longitudinal beam and a second longitudinal beam, wherein the first longitudinal beam and the second longitudinal beam are perpendicular to the upper edge beam. Wherein a first cavity is defined by an upper edge beam, a cross beam parallel to the upper edge beam, a first longitudinal beam perpendicular to the upper edge beam and a second longitudinal beam; the sliding plate chassis further comprises a module-free CTP battery pack, the CTP battery pack comprises a battery pack main body, the battery pack main body is parallel to the first cavity, a part of the lower edge beam forms a bottom extension part of the CTP battery pack, and the bottom extension part is fixedly connected with the cross beam through a first fastener; the sliding plate chassis further comprises a battery cell integrated to the chassis CTC battery bin, and the CTC battery bin is formed by jointly surrounding the upper edge beam, the lower edge beam and the side wall of the CTP battery pack. Wherein the upper edge beam is connected with the vehicle body edge beam through a second fastener.

Description

Technical Field

[0001] The invention relates to the technical field of vehicles, and in particular to a side beam structure of a skateboard chassis and a vehicle. Background Art

[0002] The skateboard chassis is a type of vehicle chassis. The traditional skateboard chassis is connected to the vehicle body side beam structure generally in the form of inner and outer panels welded and sealed. The existing skateboard chassis has a low universality in terms of structural form. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a skateboard chassis body side beam structure and a vehicle, so as to solve the problem that the existing skateboard chassis has low universality of structural form.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a body side beam structure of a skateboard chassis, comprising: a body side beam and a skateboard chassis; the skateboard chassis comprises an upper side beam, a lower side beam, a cross beam arranged parallel to the upper side beam, and a first longitudinal beam and a second longitudinal beam arranged perpendicular to the upper side beam; wherein the upper side beam, the cross beam arranged parallel to the upper side beam, the first longitudinal beam and the second longitudinal beam arranged perpendicular to the upper side beam enclose a first cavity; the skateboard chassis also comprises a module-free CTP battery pack, the CTP battery pack comprises a battery pack body, the battery pack body is parallel to the first cavity, and a part of the lower side beam constitutes a bottom extension portion of the CTP battery pack, and the bottom extension portion is fixedly connected to the cross beam by a first fastener; the skateboard chassis also comprises a CTC battery compartment with a battery cell integrated into the chassis, and the CTC battery compartment is formed by the upper side beam, the lower side beam and the side wall of the CTP battery pack;

[0005] Wherein, the upper side beam is connected to the vehicle body side beam via a second fastener.

[0006] An embodiment of the present invention further provides a vehicle, wherein the vehicle engine includes the skateboard chassis body side beam structure provided by the embodiment of the present invention.

[0007] One of the above technical solutions has the following advantages or beneficial effects:

[0008] In an embodiment of the present invention, the body side beam structure of the skateboard chassis includes: a body side beam and a skateboard chassis; the skateboard chassis includes an upper side beam, a lower side beam, a cross beam arranged parallel to the upper side beam, and a first longitudinal beam and a second longitudinal beam arranged perpendicular to the upper side beam; wherein the upper side beam, the cross beam arranged parallel to the upper side beam, and the first longitudinal beam and the second longitudinal beam arranged perpendicular to the upper side beam enclose a first cavity; the skateboard chassis also includes a module-free CTP battery pack, the CTP battery pack includes a battery pack body, the battery pack body is parallel to the first cavity, and a part of the lower side beam constitutes a bottom extension portion of the CTP battery pack, and the bottom extension portion is fixedly connected to the cross beam by a first fastener; the skateboard chassis also includes a CTC battery compartment with a cell integrated into the chassis, and the CTC battery compartment is formed by the upper side beam, the lower side beam and the side wall of the CTP battery pack; wherein the upper side beam is connected to the body side beam by a second fastener. In the embodiment of the present invention, a CTP battery pack is arranged in the skateboard chassis, and a CTC battery compartment is formed by the upper side beam, the lower side beam and the side wall of the skateboard chassis. This design is compatible with both the CTP battery pack and the CTC battery compartment, allowing different vehicle battery packs or battery cell integration solutions to be selected on the same skateboard chassis according to different needs, thereby increasing the flexibility of the skateboard chassis in battery selection and enhancing the versatility of the skateboard chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of a side beam structure of a skateboard chassis provided by an embodiment of the present invention;

[0010] Figure 2 The invention is a schematic diagram of the connection between a skateboard chassis and a vehicle body side beam provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0011] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0012] like Figure 1 As shown, an embodiment of the present invention provides a schematic structural diagram of a side beam structure of a skateboard chassis, such as Figure 1 As shown, it includes: a skateboard chassis body side beam structure, including: a body side beam 1 and a skateboard chassis 2;

[0013] The skateboard chassis 2 includes an upper side beam, a lower side beam, a cross beam arranged parallel to the upper side beam, and a first longitudinal beam and a second longitudinal beam arranged perpendicular to the upper side beam; wherein the upper side beam, the cross beam arranged parallel to the upper side beam, and the first longitudinal beam and the second longitudinal beam arranged perpendicular to the upper side beam enclose a first chamber 3;

[0014] The skateboard chassis 2 also includes a module-free CTP battery pack 5, the CTP battery pack 5 includes a battery pack 5 body, the battery pack 5 body is parallel to the first chamber 3, and a portion of the lower side beam constitutes a bottom extension portion of the CTP battery pack 5, and the bottom extension portion is fixedly connected to the crossbeam through a first fastener 4;

[0015] The skateboard chassis 2 also includes a CTC battery compartment 6 with a battery cell integrated into the chassis, and the CTC battery compartment 6 is formed by the upper side beam, the lower side beam and the side wall of the CTP battery pack 5;

[0016] The upper side beam is connected to the vehicle body side beam 1 via a second fastener 9 .

[0017] In the embodiment of the present invention, the body side beam 1 and the skateboard chassis 2 are the core components of the body side beam structure of the skateboard chassis of the present invention. Figure 1 The structural form is given as an example. Of course, the body side beam 1 and the skateboard chassis 2 can also be of any structure and shape under the premise of satisfying the basic functions. For example, a cavity-type body structure can be used to increase the body strength; the embodiment of the present invention does not limit this. Among them, the upper side beam, lower side beam, cross beam, first longitudinal beam and second longitudinal beam of the skateboard chassis 2 together constitute the basic frame structure of its first cavity 3. The specific shape, size and position of each component of the upper side beam, lower side beam, cross beam, first longitudinal beam and second longitudinal beam in the skateboard chassis 2 can be arbitrarily adjusted according to the actual application scenario and the layout requirements of the surrounding components, that is, the embodiment of the present invention does not strictly limit it, as long as it can enclose a cavity to provide a suitable space. Of course, the material of the above-mentioned beam structure can be any material that can meet the strength and stiffness requirements of the skateboard chassis 2, such as high-strength aluminum alloy, carbon fiber reinforced composite material or other advanced metal materials, etc., and the embodiment of the present invention does not limit this either.

[0018] The above-mentioned part of the lower side beam constitutes the bottom extension part of the CTP battery pack 5, and a regular cross-section can be used to provide an interface for surrounding components; it helps to strengthen the overall structure of the CTP battery pack 5, improve its impact resistance, and enable the CTP battery pack 5 to make more full use of the chassis space and accommodate more batteries, thereby improving the volume utilization of the CTP battery pack 5. In addition, the number of separately set parts is reduced, which reduces the overall weight of the CTP battery pack 5 to a certain extent and improves the integration of the skateboard chassis.

[0019] In some optional embodiments, the structure of the first chamber 3 can also be optimized. For example, some weight-reducing holes are set on the upper side beam, the lower side beam, the cross beam, the first longitudinal beam and the second longitudinal beam, or the partition beam is made of a new lightweight material, so as to reduce the overall weight of the skateboard chassis 2 without affecting its structural strength and function, which helps to improve the energy efficiency and cruising range of the vehicle. In addition, materials can also be added to the inner surface of the first chamber 3, such as coating an anti-corrosion coating, which can prevent the metal parts in the chamber from rusting and corroding due to moisture or other reasons, thereby extending the service life of the skateboard chassis 2.

[0020] The module-free CTP (Cell To Pack) battery pack 5 included in the skateboard chassis 2 has a main body of the battery pack 5 arranged parallel to the first chamber 3. This layout is convenient for installation, and the arrangement parallel to the first chamber 3 can make the outer wall of the CTP battery pack 5 perpendicular to the upper and lower side beams of the skateboard chassis 2, forming a regular shape, which is convenient for forming a regular CTC battery compartment 6 space with sufficient available space; of course, the specific arrangement position of the main body of the CTP battery pack 5 and the shape and size of the main body of the CTP battery pack 5 can also be adaptively adjusted according to changes in the overall design of the skateboard chassis 2, and this is not specifically limited in the embodiments of the present invention.

[0021] The bottom extension of the CTP (Cell to Chassis) battery pack 5 is fixedly connected to the crossbeam via the first fastener 4, wherein the first fastener 4 may be a bolt, a rivet or any other fastening device capable of achieving reliable connection, and the specific type thereof is not limited in the embodiment of the present invention, as long as the stability of the connection is ensured and the battery pack 5 is safely installed on the skateboard chassis 2. In addition, the material and specific type of the main body of the battery pack 5 may be selected according to different needs and application scenarios, and the embodiment of the present invention is also not limited thereto.

[0022] The above-mentioned battery cell is integrated into the chassis. The CTC battery compartment 6 is formed by the upper side beam, the lower side beam and the side wall of the CTP battery pack 5. The size and shape of its internal space can be flexibly designed according to the layout requirements of related systems such as the selected battery cell specifications, quantity and electrical connection. The embodiment of the present invention does not specifically limit the specific setting position, spatial scale and shape of the CTC battery compartment 6.

[0023] The upper side beam is connected to the body side beam 1 through the second fastener 9 to achieve the coupling connection between the body side beam 1 structure and the skateboard chassis 2. The second fastener 9 can be a bolt, a connecting pin or other suitable connecting parts. The embodiment of the present invention does not limit the specific type and material of the second fastener 9, as long as it can achieve a firm and reliable connection between the body side beam 1 and the upper side beam of the skateboard chassis 2 to ensure the stability of the connection between the two during the operation of the vehicle. At the same time, the cross-sectional shape and size of the body side beam 1 at the connection part and the specific installation position of the second fastener 9 can be arbitrarily adjusted according to the design requirements of different vehicle models. The embodiment of the present invention also does not limit this. The different specific installation positions of the second fastener 9 do not affect the realization of the basic functions of the embodiment of the present invention.

[0024] In the embodiment of the present invention, a CTP battery pack 5 is arranged in the skateboard chassis 2, and a CTC battery compartment 6 is formed by being surrounded by the upper side beam, the lower side beam and the side wall of the skateboard chassis 2. This design is compatible with both the CTP battery pack 5 and the CTC battery compartment 6, allowing different vehicle battery packs 5 or battery cell integration solutions to be selected on the same skateboard chassis 2 according to different needs, thereby increasing the flexibility of the skateboard chassis 2 in battery selection, thereby enhancing the versatility of the skateboard chassis 2.

[0025] As an optional implementation, Figure 1 As shown, the assembly positions of the first fastener 4 and the second fastener 9 are located in the same plane.

[0026] In this embodiment, the first fastener 4 is used to connect the bottom extension of the CTC battery pack 5 and the crossbeam of the skateboard chassis 2, and the second fastener 9 is used to connect the body side beam 1 and the skateboard chassis 2. The assembly positions of the two are located in the same plane, which can make the connection force distribution more uniform, and at the same time, facilitate standardized assembly operations during the production process. Positioning and installing fasteners on the same plane can use unified fixtures and assembly processes to reduce assembly difficulty and errors, thereby improving the connection accuracy between the body side beam 1 and the skateboard chassis 2, and the CTP battery pack 5 and the skateboard chassis 2, thereby improving production efficiency and product quality consistency.

[0027] The material and type of the first fastener 4 and the second fastener 9 are not specifically limited in the embodiment of the present invention, and may be bolts, rivets or other fastening devices capable of achieving reliable connection; of course, the first fastener 4 and the second fastener 9 may also be assembled in other relative positions, such as staggered assembly or assembly at a certain inclination angle relative to the horizontal or vertical direction of the skateboard chassis 2. The use of assembly methods in different relative positions does not affect the realization of the basic functions of the body side beam structure of the skateboard chassis of the present invention.

[0028] As an optional implementation, the skateboard chassis 2 further includes a second chamber 8 , and the second chamber 8 is enclosed by the upper side beam and three partition beams arranged inside the skateboard chassis 2 .

[0029] The second chamber 8 is composed of the upper side beam and three partition beams arranged inside the skateboard chassis 2, which provides multiple possibilities for optimizing the overall performance of the skateboard chassis 2. For example, some small electronic control units, sensor modules, and some auxiliary power equipment circuits can be placed in the second chamber 8. At the same time, these components can be better protected in the second chamber 8 to avoid collision and interference from the outside, which is conducive to optimizing the spatial layout inside the skateboard chassis 2, thereby improving the integration of the skateboard chassis 2. The specific shape, material and setting position of the three partition beams and the shape and size of the second chamber 8 are not specifically limited in the embodiment of the present invention, as long as they can be enclosed to form a chamber.

[0030] In this embodiment, the design of the second chamber 8 enriches the functions of the skateboard chassis 2, optimizes space utilization, and enhances the practicality of the skateboard chassis 2, so that it can better adapt to the diverse requirements of modern vehicles for chassis performance.

[0031] Of course, whether the second chamber 8 is disposed inside the skateboard chassis 2 does not affect the realization of the basic functions of the skateboard chassis body side beam structure of the present invention.

[0032] As an optional implementation, Figure 2 As shown, the second fastener 9 includes a bolt 92 and a nut 91, a first assembly hole is opened in the upper side beam constituting the second chamber 8, and a second assembly hole is opened in a position corresponding to the first assembly hole of the body side beam 1, and the bolt 92 is connected with the nut 91 arranged at the corresponding position of the body side beam 1 through the first assembly hole and the second assembly hole.

[0033] In this embodiment, by opening a first assembly hole on the upper side of the second chamber 8 and opening a second assembly hole at a corresponding position of the body side beam 1, the bolt 92 can pass through the two assembly holes and cooperate with the nut 91 at the body side beam 1 to achieve a stable combination of the body side beam 1 and the skateboard chassis 2. Compared with some complex connection methods, this simple and direct bolt 92 nut 91 connection is easy to operate and master, which can improve assembly efficiency and reduce production costs. Moreover, during the subsequent maintenance and repair of the vehicle, when it is necessary to disassemble or reinstall the body side beam 1 and the skateboard chassis 2, this connection method is also easy to operate, which only provides convenience for subsequent maintenance work. At the same time, since the first assembly hole is opened inside the second chamber 8, during the operation of the vehicle, when it is subjected to external forces such as vibration and impact, the structure inside the second chamber 8 can provide better support and restraint for the bolt 92. Compared with the openings in other positions, the second chamber 8 itself can provide a certain degree of protection for the bolt 92, reduce the erosion and contamination of the assembly holes and fasteners by dust, moisture, debris, etc., reduce the probability of problems such as wear, corrosion or jamming of the connecting parts caused by the entry of foreign matter, extend the service life of the fasteners, and thus enhance the long-term stability of the connection between the body side beam 1 and the skateboard chassis 2.

[0034] In some optional embodiments, the material of the bolt 92 and the nut 91 can also be optimized. For example, alloy steel material is selected, which has higher strength and hardness, can withstand greater tension and shear force, and further enhances the reliability of the connection. At the same time, the surface of the bolt 92 and the nut 91 can be rust-proofed, such as galvanizing, Dacromet coating, etc., to prevent the connection performance from being reduced due to rust in a humid or harsh environment and extend its service life. The specific positions of the first assembly hole and the second assembly hole mentioned above are not specifically limited in the embodiment of the present invention.

[0035] In this embodiment, the reliable connection between the body side beam 1 and the skateboard chassis 2 is achieved through the connection structure of the bolts 92 and the nuts 91, which improves the structural stability of the vehicle while taking into account the convenience of assembly and maintenance. Of course, in the embodiment of the present invention, the number of the above-mentioned bolts 92, nuts 91 and assembly holes is not limited, and can be multiple bolts 92, nuts 91 and assembly holes of any number and any position; in some optional embodiments, the first assembly hole can also be set at other positions, that is, the bolts 92 and nuts 91 can also achieve the connection between the skateboard chassis 2 and the body side beam 1 without passing through the first chamber 3. Of course, in addition to the bolts 92 and nuts 91, other fasteners can also be used, such as rivets, welding studs or a combination of pins and keys, etc. The selection of different types of fasteners does not affect the realization of the basic functions of the skateboard chassis body side beam structure of the present invention.

[0036] As an optional implementation, a sealing structure 7 is provided at the connection portion between the vehicle body side beam 1 and the skateboard chassis 2 .

[0037] In this embodiment, the sealing structure 7 can effectively prevent external dust, moisture, debris and corrosive substances from entering the connection gap between the body side beam 1 and the skateboard chassis 2. To a certain extent, it blocks water, mud and dust from invading the connection part, which can reduce the risk of rust and corrosion of components caused by these adverse factors, keep the connection part clean and dry, and improve the long-term reliability of the connection between the body side beam 1 and the skateboard chassis 2.

[0038] Among them, the form of the sealing structure 7 can be varied. A sealing foam with good elasticity and compressibility can be used, or a rubber sealing pad with good elasticity and sealing performance can be used. The material of the rubber sealing pad can be selected according to the use environment and working conditions of the vehicle. For example, a high-temperature resistant fluororubber material can be selected in a high-temperature environment, and a silicone rubber material with good cold resistance can be selected in a cold area to ensure that the sealing pad can maintain good sealing performance under different conditions. In addition to the rubber sealing pad, a sealant can also be used for sealing. The sealant can form a continuous sealing layer at the connection part, and has good adhesion and filling properties. In some special application scenarios, a labyrinth seal design similar to the above-mentioned bearing structure can also be used. The connecting part of the body side beam 1 and the skateboard chassis 2 is designed with mutually matching protrusions and groove structures to form a tortuous sealing channel. When foreign matter tries to enter the connection part, it will be constantly blocked in the labyrinth channel, and its energy will gradually be consumed, making it difficult to penetrate the sealing structure 7. This design can provide a more reliable sealing effect when the sealing requirements are extremely high, further improving the protection performance of the vehicle. At the same time, the mounting surface and sealing surface of the upper and lower body coupling are on the same plane, which can also improve the sealing performance.

[0039] In this embodiment, a sealing structure 7 is provided at the connection portion between the body side beam 1 and the skateboard chassis 2, which reduces the influence of external adverse factors on the stability of the connection portion to a certain extent, improves the durability and reliability of the connection portion, and further improves the safety and service life of the entire vehicle.

[0040] Of course, in some optional embodiments, other methods may be used instead of the sealing structure 7 to achieve the effect of improving the stability of the connection between the body side beam 1 and the skateboard chassis 2, such as using high-precision processing technology to manufacture the mating surface of the connecting parts, improving the flatness, roughness and other indicators of the connection between the body side beam 1 and the skateboard chassis 2 to achieve higher precision, designing a special connection structure, such as using dovetail groove connection, mortise and tenon connection or embedded connection to replace the traditional planar connection, or using higher strength materials to manufacture the body side beam 1 and the skateboard chassis 2.

[0041] As an optional implementation, the sealing structure 7 is sealing foam.

[0042] In this embodiment, the sealing foam is a material with good elasticity and compressibility. When the body side beam 1 is connected to the skateboard chassis 2 by fasteners, the sealing foam will be squeezed at the connection part, and the foam structure inside it can be elastically deformed, so as to be tightly filled between the connection gaps. This characteristic enables the sealing foam to effectively prevent external dust, moisture, air and other impurities from entering the connection part. Compared with the general sealing structure 7, the sealing foam has better elasticity and compressibility, can maintain good sealing performance under different assembly pressures, and its cost is relatively low, which can effectively reduce the production cost in large-scale production. At the same time, the installation of the sealing foam is easier, and there is no need to accurately apply and wait for the curing process like sealant. It only needs to place a sealing foam of appropriate size at the connection part, which improves the assembly efficiency.

[0043] In some optional implementations, in order to further improve the accuracy and firmness of the installation position of the sealing foam, a special groove or slot can be designed at the connection part to embed the sealing foam therein to prevent it from being displaced or falling off during the assembly process.

[0044] In the implementation, the sealing foam is used as the sealing structure 7 at the connection between the body side beam 1 and the skateboard chassis 2, which reduces the influence of external adverse factors on the stability of the connection between the skateboard chassis and the body side beam structure, improves the durability and reliability of the connection, and also has certain advantages in cost control and assembly efficiency.

[0045] Of course, other materials may be used to replace the sealing foam as the sealing structure 7, such as rubber seals, sealants or graphite sealing materials, etc. Different sealing materials do not affect the realization of the basic functions of the skateboard chassis body side beam structure of the present invention.

[0046] As an optional implementation, Figure 1 As shown, the first fastener 4 and the second fastener 9 are bolts.

[0047] In this embodiment, the threaded cooperation of the bolt and the nut can provide a reliable tightening force. When the vehicle is running, it will be subjected to forces in various directions, such as inertia and impact forces generated by acceleration, braking, turning and bumps. Taking the M12 bolt as an example, its thread design can withstand large tensile and shear forces. When the vehicle brakes suddenly, the connection between the body side beam 1 and the skateboard chassis 2 needs to resist the huge forward inertia force, and the tightening effect of the bolt can effectively prevent the two from separating or displacing relative to each other. At the same time, bolts are selected as fasteners. It is only necessary to pass the bolts through the corresponding assembly holes and then tighten the nuts to complete the connection. The operation is relatively simple and does not require complex special equipment. On the vehicle production line, this convenient installation method can improve assembly efficiency and reduce production costs.

[0048] Of course, in some optional embodiments, other fasteners may also be used, such as rivets, welding studs, or a combination of pins and keys, etc. The selection of different types of fasteners does not affect the realization of the basic functions of the skateboard chassis body side beam structure of the present invention.

[0049] As an optional implementation, a reinforcing rib structure is further provided in the CTC battery compartment 6 , and the reinforcing rib structure is distributed along the inner wall of the CTC battery compartment 6 .

[0050] In this embodiment, the reinforcing rib structure distributed along the inner wall of the CTC battery compartment 6 enhances the overall rigidity and strength of the CTC battery compartment 6 to a certain extent. The embodiment of the present invention does not specifically limit the specific form and layout of the reinforcing rib structure, and its shape can be in various forms, for example, the common ones are straight strip, grid or wavy. Straight strip reinforcing ribs perform well when subjected to large unidirectional tension or pressure, and can effectively enhance the strength of the CTC battery compartment 6 in a specific direction, and are suitable for local reinforcement of the CTC battery compartment 6 in some main force directions. Grid-shaped reinforcing ribs can provide all-round support, so that the CTC battery compartment 6 has a relatively balanced rigidity in all directions, which has advantages in dealing with complex and changeable force conditions, can better disperse stress concentration points, and prevent local excessive deformation. The wavy reinforcing ribs have a unique effect in absorbing and dispersing vibration energy, can effectively reduce the impact of vehicle vibration on the battery compartment 6 and the battery cell, and are particularly suitable for battery systems that are more sensitive to vibration. In terms of material selection, the reinforcing ribs are usually made of high-strength materials with good corrosion resistance. Common ones are high-strength aluminum alloys, carbon fiber reinforced composite materials, etc.

[0051] In this embodiment, the reinforcing rib structure in the CTC battery compartment 6 effectively resists various external forces during the operation of the vehicle, improves the rigidity and strength of the CTC battery compartment 6, enhances the structural stability of the battery compartment 6 under complex working conditions, and protects the safety of the internal battery cells, thereby improving the reliability and durability of the entire skateboard chassis body side beam structure.

[0052] Of course, in other embodiments of the present invention, other processes may also be used, such as coating the surface of the battery compartment 6 with a protective coating, or providing buffer materials such as rubber pads, foam plastics or honeycomb structure materials at impact-prone locations inside or outside the battery compartment 6.

[0053] As an optional implementation, the upper side beam, the lower side beam, the cross beam, the first longitudinal beam and the second longitudinal beam are made of aluminum alloy material.

[0054] In this embodiment, the aluminum alloy has a lower density. Compared with the traditional steel structure beam, the overall weight of the skateboard chassis 2 can be reduced while ensuring the same strength and rigidity. At the same time, a dense oxide film will naturally form on the surface of the aluminum alloy. This oxide film can effectively resist the erosion of corrosive substances such as moisture, oxygen, acid and alkali in the external environment, reducing the risk of structural damage and performance degradation caused by corrosion.

[0055] Of course, carbon fiber composite materials, magnesium alloys or steel may also be selected to replace aluminum alloys. The selection of different materials for the upper side beam, the lower side beam, the cross beam, the first longitudinal beam and the second longitudinal beam does not affect the realization of the basic functions of the side beam structure of the skateboard chassis of the present invention.

[0056] In the embodiment of the present invention, the body side beam structure of the skateboard chassis includes: a body side beam 1 and a skateboard chassis 2; the skateboard chassis 2 includes an upper side beam, a lower side beam, a cross beam arranged parallel to the upper side beam, and a first longitudinal beam and a second longitudinal beam arranged perpendicular to the upper side beam; wherein the upper side beam, the cross beam arranged parallel to the upper side beam, and the first longitudinal beam and the second longitudinal beam arranged perpendicular to the upper side beam enclose a first chamber 3; the skateboard chassis 2 also includes a module-free CTP battery pack 5, the CTP battery pack 5 includes a battery pack 5 main body, the battery pack 5 main body is parallel to the first chamber 3, and a part of the lower side beam constitutes a bottom extension portion of the CTP battery pack 5, and the bottom extension portion is fixedly connected to the cross beam through a second fastener 9; the skateboard chassis 2 also includes a battery cell integrated into the chassis CTC battery compartment 6, and the CTC battery compartment 6 is formed by the upper side beam, the lower side beam and the side wall of the CTP battery pack 5; wherein the upper side beam is connected to the body side beam 1 through a first fastener 4. In the embodiment of the present invention, a CTP battery pack 5 is arranged in the skateboard chassis 2, and a CTC battery compartment 6 is formed by being surrounded by the upper side beam, the lower side beam and the side wall of the skateboard chassis 2. This design is compatible with both the CTP battery pack 5 and the CTC battery compartment 6, allowing different vehicle battery packs 5 or battery cell integration solutions to be selected on the same skateboard chassis 2 according to different needs, thereby increasing the flexibility of the skateboard chassis 2 in battery selection and enhancing the versatility of the skateboard chassis 2.

[0057] In addition, in an embodiment of the present invention, a vehicle is provided, including a skateboard chassis body side beam structure of any implementation manner provided in an embodiment of the present invention.

[0058] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0059] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A skateboard chassis body side beam structure, characterized in that: include: body side rails and skateboard chassis; The skateboard chassis comprises an upper side beam, a lower side beam, a cross beam arranged parallel to the upper side beam, and a first longitudinal beam and a second longitudinal beam arranged perpendicular to the upper side beam; wherein the upper side beam, the cross beam arranged parallel to the upper side beam, and the first longitudinal beam and the second longitudinal beam arranged perpendicular to the upper side beam enclose a first cavity; The skateboard chassis further includes a module-free CTP battery pack, the CTP battery pack includes a battery pack body, the battery pack body is parallel to the first chamber, and a portion of the lower side beam constitutes a bottom extension portion of the CTP battery pack, and the bottom extension portion is fixedly connected to the crossbeam through a first fastener; The skateboard chassis also includes a CTC battery compartment with a battery cell integrated into the chassis, and the CTC battery compartment is formed by the upper side beam, the lower side beam and the side wall of the CTP battery pack; Wherein, the upper side beam is connected to the vehicle body side beam via a second fastener.

2. The skateboard chassis body side beam structure as claimed in claim 1, characterized in that: The assembly positions of the first fastener and the second fastener are located in the same plane.

3. The skateboard chassis body side beam structure as claimed in claim 2, characterized in that: The skateboard chassis also includes a second cavity, which is surrounded by the upper side beam and three partition beams arranged inside the skateboard chassis.

4. The skateboard chassis body side beam structure as claimed in claim 3, characterized in that: The second fastener includes a bolt and a nut. A first assembly hole is opened on the upper side beam constituting the second chamber, and a second assembly hole is opened on the body side beam at a position corresponding to the first assembly hole. The bolt is connected with the nut arranged at a corresponding position of the body side beam through the first assembly hole and the second assembly hole.

5. The skateboard chassis body side beam structure according to any one of claims 1 to 4, characterized in that: A sealing structure is provided at the connection position between the body side beam and the skateboard chassis.

6. The skateboard chassis body side beam structure according to any one of claim 5, characterized in that: The sealing structure is sealing foam.

7. The skateboard chassis body side beam structure according to any one of claims 1 to 4, characterized in that: The first fastening member and the second fastening member are bolts.

8. The skateboard chassis body side beam structure according to any one of claims 1 to 4, characterized in that: A reinforcing rib structure is also provided in the CTC battery compartment, and the reinforcing rib structure is distributed along the inner wall of the CTC battery compartment.

9. The skateboard chassis body side beam structure according to any one of claims 1 to 4, characterized in that: The upper side beam, the lower side beam, the cross beam, the first longitudinal beam and the second longitudinal beam are made of aluminum alloy material.

10. A vehicle, characterized in that: The vehicle comprises a skateboard chassis body side beam structure according to any one of claims 1 to 9.

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