Body chassis and electric vehicles

Abstract

This application discloses a vehicle chassis and an electric vehicle, belonging to the field of vehicle body structure technology. The vehicle chassis includes a chassis body and multiple battery components. The chassis body includes a pair of first longitudinal beams, a pair of second longitudinal beams, a first crossbeam, and a second crossbeam. The pair of second longitudinal beams are arranged on both sides of the pair of first longitudinal beams. The first crossbeam is connected to the same end of the first and second longitudinal beams, and the second crossbeam is connected to the other end of the first and second longitudinal beams. The first crossbeam, the second crossbeam, and the pair of first longitudinal beams enclose an assembly area, and the first crossbeam, the second crossbeam, the first longitudinal beam, and the second longitudinal beam enclose a buffer zone. Multiple battery components are distributed within the assembly area. This application, by distributing multiple battery components within the assembly area formed on the chassis body, frees up the vehicle height space occupied by the battery components, improving the utilization rate of the passenger compartment space. The chassis body has a large space, and the battery components are distributed in the assembly area there, increasing the battery's space-specific energy.

Description

Technical Field

[0001] This application relates to the field of vehicle body structure technology, and in particular to a vehicle body chassis and an electric vehicle. Background Technology

[0002] In recent years, electric vehicles have been widely regarded as having a promising future due to their advantages in environmental protection, power performance, intelligence, and structural simplicity. An electric vehicle comprises a body, chassis, battery, wheels, and motor. The battery, as the primary power source of an electric vehicle, converts chemical energy into electrical energy to drive the electric motor, thereby propelling the vehicle.

[0003] In related technologies, the integration of batteries and vehicle chassis in electric vehicles involves mounting the battery as an independent component under the vehicle chassis, forming a series structure with the vehicle chassis in terms of height. The battery and vehicle chassis are connected by bolts or quick-connect fittings.

[0004] This design occupies a significant amount of passenger compartment space in terms of height, which is detrimental to the ergonomic and spatial layout of passenger vehicles. Furthermore, due to the collision protection requirements of the battery, the battery's side longitudinal beams, as safety load-bearing beams, need to be designed as structural components with high rigidity. Collision crumple zone requirements necessitate a certain amount of space to allow for collision crumple in the vehicle's width direction, further compressing the space available for battery components. At the vehicle level, to better protect the battery, it must be recessed inside the chassis's side longitudinal beams in the width direction, further reducing the available space for battery component placement. The combination of these factors results in a limited number of battery components that can be accommodated in the spacious underfloor space, significantly reducing the battery's space-energy-density ratio. Summary of the Invention

[0005] This disclosure provides a vehicle chassis and an electric vehicle, which can solve the problems of low utilization rate of passenger compartment space and low battery energy density in existing electric vehicles. The technical solution is as follows:

[0006] In one aspect, a vehicle chassis is provided, including: a chassis body and multiple battery components;

[0007] The chassis body includes a pair of first longitudinal beams, a pair of second longitudinal beams, a first crossbeam, and a second crossbeam; the pair of second longitudinal beams are arranged on both sides of the pair of first longitudinal beams, the first crossbeam is fixedly connected to the same end of the first longitudinal beams and the second longitudinal beams, and the second crossbeam is fixedly connected to the other end of the first longitudinal beams and the second longitudinal beams; the first crossbeam, the second crossbeam, and the pair of first longitudinal beams enclose an assembly area, and the first crossbeam, the second crossbeam, the first longitudinal beam, and the second longitudinal beam enclose a buffer zone;

[0008] The multiple battery components are all distributed within the assembly area.

[0009] Optionally, the chassis body further includes: a third crossbeam disposed between the first crossbeam and the second crossbeam, the third crossbeam being fixedly connected to a pair of first longitudinal beams and a pair of second longitudinal beams, and the third crossbeam being used to divide the assembly area into a first assembly area and a second assembly area.

[0010] Among them, a portion of the multiple battery components are distributed in the first assembly area, and another portion of the multiple battery components are distributed in the second assembly area.

[0011] Optionally, the vehicle chassis further includes: a first controller and a second controller;

[0012] The first controller is located within the first assembly area and is distributed on one side near the first crossbeam. The first controller is connected to a portion of the battery components distributed within the first assembly area.

[0013] The second controller is located within the second assembly area and is distributed on one side near the second crossbeam. The second controller is connected to another portion of the battery components distributed within the second assembly area.

[0014] Optionally, the first longitudinal beam, the second longitudinal beam, the first crossbeam, the second crossbeam, and the third crossbeam are all hollow through beams.

[0015] Optionally, the vehicle chassis further includes: a first frame and a second frame connected to the chassis body;

[0016] The first frame is located on the side of the first crossbeam away from the second crossbeam, and the second frame is located on the side of the second crossbeam away from the first crossbeam.

[0017] Optionally, the first longitudinal beam has a first insertion interface and a second insertion interface at both ends; the first frame is detachably connected to one end of a pair of first longitudinal beams through the first insertion interface; the second frame is detachably connected to the other end of a pair of first longitudinal beams through the second insertion interface.

[0018] Optionally, the sidewall of the first longitudinal beam has a plurality of first mounting holes communicating with the first insertion interface, and a plurality of second mounting holes communicating with the second insertion interface.

[0019] The arrangement direction of the plurality of first assembly holes and the arrangement direction of the plurality of second assembly holes are both parallel to the extension direction of the first longitudinal beam, and at least one of the plurality of first assembly holes is used to fix the first frame, and at least one of the plurality of second assembly holes is used to fix the second frame.

[0020] Optionally, the vehicle chassis further includes a reinforcing plate located within the buffer zone, with both sides of the reinforcing plate fixedly connected to the adjacent first longitudinal beam and second longitudinal beam, respectively.

[0021] Optionally, the vehicle chassis further includes an accessory connected to the battery component, the accessory being fixed to the buffer zone.

[0022] Secondly, embodiments of this disclosure provide an electric vehicle, including a chassis as described above, and wheels and a body connected to the chassis.

[0023] The beneficial effects of the technical solutions provided in this application are:

[0024] By distributing multiple battery components on the chassis body and enclosing the assembly area formed by the first crossbeam, the second crossbeam, and a pair of first longitudinal beams, the multiple battery components and the chassis body share the same height space, freeing up the vehicle height space occupied by the battery components and improving the utilization rate of the passenger compartment space.

[0025] The chassis body has a relatively larger space, which can accommodate more battery components. Furthermore, by distributing the battery components in the assembly area of ​​the chassis body, there is no need to consider the issue of retracting the battery component frame structure inside the second longitudinal beam of the chassis in the width direction of the vehicle. This can further ensure the number of battery components that can be assembled in the chassis body and effectively improve the space energy density of the battery.

[0026] By integrating the battery components with the chassis structure, eliminating the frame structure of the battery components, reducing the number of parts in the chassis, reducing assembly, and improving manufacturing precision.

[0027] The chassis body can provide secondary collision protection for the battery components in the assembly area through its first and second longitudinal beams, thereby improving the safety of the battery components. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a three-dimensional structure of a chassis body provided in an embodiment of the present disclosure;

[0030] Figure 2 This is a schematic diagram of a three-dimensional structure of a vehicle chassis provided in an embodiment of this disclosure;

[0031] Figure 3 This is a schematic diagram of a three-dimensional structure of a vehicle chassis provided in an embodiment of this disclosure;

[0032] Figure 4 This is a schematic diagram of an exploded structure of a vehicle chassis provided in an embodiment of this disclosure;

[0033] Figure 5 This is a schematic diagram of a three-dimensional structure of a chassis body provided in an embodiment of this disclosure;

[0034] Figure 6 This is a schematic diagram of a three-dimensional structure of a chassis body provided in an embodiment of this disclosure;

[0035] Figure 7 This is a schematic diagram of an exploded structure of a vehicle chassis provided in an embodiment of this disclosure.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10-Chassis body;

[0038] 11-First longitudinal beam; 111-First insertion interface;

[0039] 12 - Second longitudinal beam;

[0040] 13-First crossbeam; 131-First through hole; 132-First power connector; 133-Second power connector;

[0041] 14-Second crossbeam; 15-Third crossbeam; 16-Reinforcing plate; 17-Bottom cover; 18-Top cover;

[0042] 20 - Battery component; 30 - First controller; 40 - Second controller;

[0043] 50 - First frame; 51 - Front crossbeam; 52 - Front longitudinal beam;

[0044] 60 - Second frame; 61 - Rear crossbeam; 62 - Rear longitudinal beam;

[0045] 70 - First protective plate; 80 - Second protective plate;

[0046] A - Assembly area; A1 - First assembly area; A2 - Second assembly area; B - Buffer zone;

[0047] V1 - First assembly hole; V2 - Second assembly hole; V3 - Third assembly hole; V4 - Fourth assembly hole. Detailed Implementation

[0048] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0049] The directional terms used in the disclosed embodiments, such as "upper", "lower", and "side", are generally based on the orientation shown in the figure. These directional terms are used only to more clearly describe the relationship between structures, not to describe absolute orientation.

[0050] Unless otherwise defined, all technical terms used in the embodiments of this disclosure have the same meaning as commonly understood by one of ordinary skill in the art.

[0051] To make the technical solutions and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0052] Firstly, a vehicle chassis is provided. For example... Figures 1-7 As shown, the vehicle chassis includes: chassis body 10 and multiple battery components 20.

[0053] The chassis body 10 includes a pair of first longitudinal beams 11, a pair of second longitudinal beams 12, a first crossbeam 13, and a second crossbeam 14. The pair of second longitudinal beams 12 are arranged on both sides of the pair of first longitudinal beams 11. The first crossbeam 13 is fixedly connected to the same end of the first longitudinal beams 11 and the second longitudinal beams 12, and the second crossbeam 14 is fixedly connected to the other end of the first longitudinal beams 11 and the second longitudinal beams 12. The first crossbeam 13, the second crossbeam 14, and the pair of first longitudinal beams 11 enclose an assembly area A, and the first crossbeam 13, the second crossbeam 14, the first longitudinal beams 11, and the second longitudinal beams 12 enclose a buffer zone B.

[0054] Multiple battery components 20 are distributed within assembly area A.

[0055] In this embodiment, by distributing multiple battery components 20 within the assembly area A formed by the first crossbeam 13, the second crossbeam 14, and a pair of first longitudinal beams 11 on the chassis body 10, the battery components 20 and the chassis body 10 share the same height space. This frees up the vehicle height space occupied by the battery components 20, improving the utilization rate of the passenger compartment space. The space at the chassis body 10 is relatively larger, allowing for the placement of more battery components 20. Furthermore, distributing the battery components 20 within the assembly area A at the chassis body 10 eliminates the need to consider the issue of concealing the frame structure of the battery components 20 within the second longitudinal beam 12 of the chassis body in the vehicle width direction. This further ensures the number of battery components 20 assembled at the chassis body 10, effectively improving the space energy density of the battery. By integrating the battery components 20 with the structure at the chassis body 10, eliminating the frame structure of the battery components 20, the number of chassis parts is reduced, assembly is simplified, and manufacturing precision is improved. The chassis body 10 can provide secondary anti-collision protection for the battery component 20 in the assembly area A through the first longitudinal beam 11 and the second longitudinal beam 12 distributed at intervals on it, thereby improving the safety of the battery component 20.

[0056] Optionally, the chassis body 10 further includes a third crossbeam 15 disposed between the first crossbeam 13 and the second crossbeam 14. The third crossbeam 15 is fixedly connected to a pair of first longitudinal beams 11 and a pair of second longitudinal beams 12, and the third crossbeam 15 is used to divide the assembly area A into a first assembly area A1 and a second assembly area A2.

[0057] Among them, a portion of the multiple battery components 20 are distributed in the first assembly area A1, and another portion of the multiple battery components 20 are distributed in the second assembly area A2.

[0058] A third crossbeam 15, located between the first crossbeam 13 and the second crossbeam 14, divides the assembly area A formed on the chassis body 10 into a first assembly area A1 and a second assembly area A2, distributed along the extension direction of the first longitudinal beam 11. Multiple battery components 20 can be arranged in separate zones through the first assembly area A1 and the second assembly area A2. This allows some battery components 20 on the first assembly area A1 and others on the second assembly area A2 to be connected to the vehicle's motor nearby, facilitating simultaneous power supply to both battery components 20 in the first and second assembly areas A1 and simplifying wiring. Furthermore, the multiple battery components 20 can be arranged in separate zones on the first and second assembly areas A1 and A2 according to voltage platform requirements, facilitating precise control and temperature management.

[0059] Figure 1 This is a three-dimensional structural diagram of a chassis body 10 provided in an embodiment of this disclosure. Figure 1As shown, the chassis body 10 forms a frame structure through a pair of first longitudinal beams 11, a pair of second longitudinal beams 12, a first crossbeam 13, a second crossbeam 14, and a third crossbeam 15.

[0060] Specifically, the pair of first longitudinal beams 11, the pair of second longitudinal beams 12, the first crossbeam 13, the second crossbeam 14, and the third crossbeam 15 in the chassis body 10 can be connected by welding / riveting or other methods to facilitate the processing and formation of a frame structure.

[0061] The areas of the first assembly area A1 and the second assembly area A2 formed by the third crossbeam 15 can be the same or different, depending on the actual needs. For example, the third crossbeam 15 is closer to the second crossbeam 14, so that the area of ​​the first assembly area A1 is larger than the area of ​​the second assembly area A2.

[0062] Figure 2 This is a schematic diagram of a three-dimensional structure of a vehicle chassis provided in an embodiment of this disclosure.

[0063] Optional, such as Figure 2 As shown, the vehicle chassis also includes: a first controller 30 and a second controller 40.

[0064] The first controller 30 is located in the first assembly area A1 and is distributed on one side close to the first crossbeam 13. The first controller 30 is connected to a portion of the battery components 20 distributed in the first assembly area A1.

[0065] The second controller 40 is located in the second assembly area A2 and is distributed on one side near the second crossbeam 14. The second controller 40 is connected to another part of the battery components 20 distributed in the second assembly area A2.

[0066] The first controller 30 and the second controller 40 have the same function: to control the discharge of the battery component 20, monitor the temperature of the battery component 20, and control the cooling system to provide cooling water to the battery component 20.

[0067] The first controller 30 and the second controller 40 have the same advantages in terms of their placement. Taking the first controller 30 as an example, the following explanation will be provided. The first controller 30 is located in the first assembly area A1, which makes full use of the space in the chassis body 10. Placing the first controller 30 in the first assembly area A1, close to the first crossbeam 13, ensures that some of the battery components 20 distributed within the first assembly area A1 are positioned relatively close to or at the center of the chassis body 10. This facilitates protection of the battery components 20 in the event of an accident, such as a collision.

[0068] The vehicle chassis also includes a first inverter and a second inverter (not shown). The first inverter is located in the first assembly area A1 and is distributed on one side near the first crossbeam 13. The first inverter is connected to a portion of the battery components 20 distributed in the first assembly area A1. The second inverter is located in the second assembly area A2 and is distributed on one side near the second crossbeam 14. The second inverter is connected to another portion of the battery components 20 distributed in the second assembly area A2.

[0069] The first and second inverters serve the same purpose: driving motors, adapting to different electrical devices, and improving efficiency and driving range. The advantages of their placement are the same as those derived from the placement of the first controller 30, and therefore will not be elaborated upon here.

[0070] Optionally, the first longitudinal beam 11, the second longitudinal beam 12, the first crossbeam 13, the second crossbeam 14, and the third crossbeam 15 are all hollow through beams. The hollow through beams can increase strength to better protect the multiple battery components 20 inside the chassis body 10.

[0071] Among them, the cross-sectional areas of the first longitudinal beam 11, the second longitudinal beam 12, the first cross beam 13, the second cross beam 14 and the third cross beam 15 can be the same, so as to facilitate the splicing and processing of different chassis bodies 10 according to different vehicle models, and to carry out serialized design and development of chassis bodies 10 integrating multiple battery components 20 to achieve 60-120kwh power capacity adjustment and adapt to the needs of different weight vehicle models.

[0072] The first longitudinal beam 11, the second longitudinal beam 12, the first crossbeam 13, the second crossbeam 14, and the third crossbeam 15 can all be manufactured using a roll forming process. This allows the chassis body 10 to be adjusted as needed when its length and / or width are adjusted, reducing the need for new development. The chassis body 10 can also adjust the thickness and type of the molding material according to the load conditions to achieve adaptability to different loads. It is understood that the length direction of the chassis corresponds to the length direction of the electric vehicle, and the width direction of the chassis corresponds to the width direction of the electric vehicle.

[0073] Figure 3 This is a schematic diagram of a three-dimensional structure of a vehicle chassis provided in an embodiment of this disclosure.

[0074] Optional, such as Figure 3 As shown, the vehicle chassis also includes a first frame 50 and a second frame 60 connected to the chassis body 10.

[0075] The first frame 50 is distributed on the side of the first crossbeam 13 away from the second crossbeam 14, and the second frame 60 is distributed on the side of the second crossbeam 14 away from the first crossbeam 13.

[0076] When an electric vehicle uses the chassis body 10 of this embodiment, in the event of a side collision, the first longitudinal beam 11 and the second longitudinal beam 12 can provide secondary impact protection for the battery. In the event of a frontal collision, the first frame 50 or the second frame 60 can provide impact protection for the battery. The first longitudinal beam 11, the second longitudinal beam 12, the first frame 50, and the second frame 60 work together to protect the battery component 20 from multiple angles, thereby improving the safety of the battery component 20.

[0077] Specifically, the first frame 50 corresponds to the frame in the front engine compartment of the electric vehicle, and the second frame 60 corresponds to the frame in the rear trunk of the electric vehicle.

[0078] Optionally, the first longitudinal beam 11 has a first insertion interface 111 and a second insertion interface at both ends. The first frame 50 is detachably connected to one end of a pair of first longitudinal beams 11 through the first insertion interface 111, and the second frame 60 is detachably connected to the other end of a pair of first longitudinal beams 11 through the second insertion interface, so as to form a complete vehicle load-bearing structure.

[0079] In related technologies, both the first frame 50 and the second frame 60 are indirectly connected to the first longitudinal beam 11 through intermediate components (such as crossbeams), which cannot effectively transmit force and does not significantly improve the strength of the first longitudinal beam 11.

[0080] In this embodiment of the vehicle chassis, the first frame 50 is detachably connected to one end of a pair of first longitudinal beams 11 via a first connector 111, and the second frame 60 is detachably connected to the other end of the pair of first longitudinal beams 11 via a second connector. The direct connection of the first frame 50 and the second frame 60 to the first longitudinal beams 11 effectively improves the strength of the first longitudinal beams 11, such as increasing their bending and compressive strength.

[0081] Specifically, such as Figure 2 As shown, a pair of first through holes 131 are provided on the first crossbeam 13, and the first through holes 131 and the first plug-in interfaces 111 correspond one-to-one and are connected to each other, so as to facilitate the insertion of the first frame 50 and the first longitudinal beam 11. The first crossbeam 13 also has a first power connection port 132 and a second power connection port 133 located between the pair of first through holes 131, so as to facilitate the electrical connection between the battery component 20 and the motor in the first assembly area A1. A pair of second through holes are provided on the second crossbeam 14, and the second through holes and the second plug-in interfaces correspond one-to-one and are connected to each other, so as to facilitate the insertion of the second frame 60 and the first longitudinal beam 11. The second crossbeam 14 also has a third power connection port and a fourth power connection port located between the pair of second through holes, so as to facilitate the electrical connection between the battery component 20 and the motor in the second assembly area A2. The second plug-in interface of the first crossbeam 11 and the second through holes, third power connection port, and fourth power connection port on the second crossbeam 14 are... Figure 2 Due to the viewing angle, it cannot be shown.

[0082] Figure 4 This is a schematic diagram of an exploded structure of a vehicle chassis provided in an embodiment of this disclosure.

[0083] Optional, such as Figure 4 As shown, the side wall of the first longitudinal beam 11 has a plurality of first mounting holes V1 communicating with the first insertion interface 111, and a plurality of second mounting holes V2 communicating with the second insertion interface.

[0084] The arrangement direction of the plurality of first mounting holes V1 and the arrangement direction of the plurality of second mounting holes V2 are both parallel to the extension direction of the first longitudinal beam 11, and at least one of the plurality of first mounting holes V1 is used to fix the first frame 50, and at least one of the plurality of second mounting holes V2 is used to fix the second frame 60.

[0085] The insertion length between the first frame 50 and the first longitudinal beam 11 can be flexibly adjusted through multiple first mounting holes V1. The insertion length between the second frame 60 and the first longitudinal beam 11 can be flexibly adjusted through multiple second mounting holes V2.

[0086] The vehicle chassis in this embodiment provides ample mounting space for multiple battery components 20 via the chassis body 10, allowing for flexible selection of the number of battery components 20 to be installed as needed, thus improving the chassis's versatility and adapting to vehicles with different power requirements. The multiple first mounting holes V1 and multiple second mounting holes V2 further enhance the chassis's versatility in the length direction. The first frame 50 and the second frame 60 are both detachably connected to the first longitudinal beam 11, also increasing the chassis's versatility. For example, when a different chassis body 10 needs to be replaced, the original first frame 50 and second frame 60 can continue to be used.

[0087] Specifically, such as Figure 4 As shown, the first frame 50 includes a pair of front longitudinal beams 52 and a front crossbeam 51. The two ends of the front crossbeam 51 are fixedly connected to the adjacent pair of front longitudinal beams 52. The number of front crossbeams 51 can be one, two, three, etc., depending on actual needs. The second frame 60 includes a pair of rear longitudinal beams 62 and a rear crossbeam 61. The two ends of the rear crossbeam 61 are fixedly connected to the adjacent pair of rear longitudinal beams 62. The number of rear crossbeams 61 can be one, two, three, etc., depending on actual needs.

[0088] The front longitudinal beam 52 has multiple third mounting holes V3 near the first crossbeam 13. These third mounting holes V3 are arranged along the extension direction of the front longitudinal beam 52. Bolts and nuts pass through the corresponding first mounting holes V1 and third mounting holes V3 to detachably connect the first frame 50 and the first longitudinal beam 11. The rear longitudinal beam 62 has multiple fourth mounting holes V4 near the second crossbeam 14. These fourth mounting holes V4 are arranged along the extension direction of the rear longitudinal beam 62. Bolts and nuts pass through the corresponding second mounting holes V2 and fourth mounting holes V4 to detachably connect the second frame 60 and the first longitudinal beam 11. For example, both the front longitudinal beam 52 and the rear longitudinal beam 62 are detachably connected to the first longitudinal beam 11 using three sets of bolts and nuts.

[0089] Optionally, the vehicle chassis also includes an accessory connected to the battery component 20, which is fixed to the buffer zone B. The accessory is a structure corresponding to the battery component 20, such as a cooling system or monitoring equipment. Placing the accessory in the buffer zone B facilitates full utilization of the space on the vehicle chassis, improving its space utilization rate.

[0090] Optionally, the vehicle chassis also includes a reinforcing plate 16 located within the buffer zone B, with its two sides fixedly connected to adjacent first longitudinal beams 11 and second longitudinal beams 12, respectively. The reinforcing plate 16 provides support for the space in the buffer zone B, enhancing the overall strength of the vehicle chassis. In the event of a side collision with an electric vehicle using this chassis, the reinforcing plate 16 provides support for the connected second longitudinal beam 12, preventing it from moving closer to the first longitudinal beam 11 or reducing its deformation, thus better protecting the multiple battery components 20 within the assembly area A.

[0091] Figure 5 This is a three-dimensional structural diagram of a chassis body 10 provided in an embodiment of this disclosure. In some embodiments, such as Figure 5 As shown, the reinforcing plate 16 is perpendicular to the first longitudinal beam 11 and the second longitudinal beam 12. One or more parallel reinforcing plates 16 can be set within the buffer zone B. The more reinforcing plates 16 there are, the greater the increase in the strength of the vehicle chassis, but it will also compress the space of the buffer zone B, reducing the space in the buffer zone B where accessories can be installed. Based on this, the number of reinforcing plates 16 can be flexibly set according to actual needs.

[0092] Figure 6 This is a schematic diagram of another three-dimensional structure of the chassis body 10 provided in this embodiment. In other embodiments, such as Figure 6As shown, the reinforcing plate 16 is inclinedly disposed between the first longitudinal beam 11 and the second longitudinal beam 12. For example, the reinforcing plate 16 is fixed near the first crossbeam 13, near the second crossbeam 14, and on both sides of the third crossbeam 15 in the extension direction of the first longitudinal beam 11. In this way, the reinforcing plate 16 can form a triangular structure with the surrounding beams to improve the strength of the chassis body 10, and can also ensure the effective assembly space of the accessories in the buffer zone B as much as possible.

[0093] Figure 7 This is a schematic diagram of an exploded structure of a vehicle chassis provided in an embodiment of this disclosure.

[0094] like Figure 7 As shown, the chassis body 10 also includes a bottom cover 17 and a top cover 18. A pair of second longitudinal beams 12, a first crossbeam 13, and a second crossbeam 14 in the chassis body 10 form an outer frame structure. The bottom cover 17 is sealed and fixed to the bottom of the outer frame structure, and the top cover 18 is sealed and fixed to the top of the outer frame structure. The bottom cover 17 and the top cover 18 can also be integrally formed with the outer frame structure through processes such as welding and stamping. Multiple battery components 20 are fixed in the assembly area A between the bottom cover 17 and the top cover 18. The battery components 20 can be glued to the bottom cover 17 or fixed to the bottom cover 17 through a structure such as a slide rail.

[0095] like Figure 7 As shown, the vehicle body also includes a first skid plate 70 and a second skid plate 80. The first skid plate 70 is located on the side of the bottom cover 17 away from the top cover 18. The first skid plate 70 is fixedly connected to the outer frame structure by means of screwing / riveting / welding, etc. The first skid plate 70 is made of scratch-resistant materials such as plastic or aluminum alloy. The second skid plate 80 is located on the side of the top cover 18 away from the bottom cover 17. The top cover 18 is a load-bearing structure, for example, the top cover 18 is a sheet metal part.

[0096] In summary, the vehicle chassis in this embodiment integrates the battery component 20 and the chassis body 10, eliminating the traditional battery pack and merging the cross and longitudinal beams of the chassis and the battery into one. This reduces the number of power battery pack and vehicle body components, lowers the overall weight, and improves safety protection and manufacturing precision. Simultaneously, it reduces assembly processes and the use of assembly accessories, reduces final assembly time, lowers production line assembly deviations and pressure, facilitates the layout of serialized products, and effectively improves the commonality rate of components across different vehicle models by making the entire vehicle chassis a series of products. This shortens the development cycle of platform projects, reduces development costs, and lowers the cost per vehicle. Integrating the battery component 20 onto the chassis body 10 frees up space in the vehicle chassis's height, improving the utilization rate of the passenger compartment space. The first controller 30 and the second controller 40, connected to the battery component 20, are located in assembly area A, and the accessories corresponding to the battery component 20 are located in buffer zone B, making full use of the space in the chassis body 10. The first longitudinal beam 11 and the second longitudinal beam 12 can provide secondary collision protection, effectively protecting the multiple battery components 20 on the vehicle chassis. The reinforcing plate 16 of buffer zone B further enhances the strength of the chassis body 10, thereby protecting the battery components 20 mounted thereon. Both the first frame 50 and the second frame 60 are directly and detachably connected to the first longitudinal beam 11, which improves the versatility of the vehicle chassis and strengthens the chassis body 10.

[0097] Secondly, embodiments of this disclosure provide an electric vehicle, including a chassis as described above, as well as wheels and a body connected to the chassis.

[0098] Since the battery component 20 is integrated on the vehicle chassis, the vehicle chassis and the battery component 20 can share a set of transverse and longitudinal beams, effectively freeing up the space occupied by the vehicle chassis in terms of height, improving the utilization rate of passenger compartment space, and facilitating the human-machine layout and space layout of passenger vehicles.

[0099] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0100] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0101] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A vehicle chassis, characterized in that, include: The chassis body (10), multiple battery components (20), and a first frame (50) and a second frame (60) connected to the chassis body (10); The chassis body (10) includes a pair of first longitudinal beams (11), a pair of second longitudinal beams (12), a first crossbeam (13), and a second crossbeam (14); the pair of second longitudinal beams (12) are arranged on both sides of the pair of first longitudinal beams (11), the first crossbeam (13) is fixedly connected to the same end of the first longitudinal beams (11) and the second longitudinal beams (12), and the second crossbeam (14) is fixedly connected to the other end of the first longitudinal beams (11) and the second longitudinal beams (12); the first crossbeam (13), the second crossbeam (14), and the pair of first longitudinal beams (11) enclose an assembly area (A), and the first crossbeam (13), the second crossbeam (14), the first longitudinal beams (11), and the second longitudinal beams (12) enclose a buffer zone (B); The plurality of battery components (20) are all distributed within the assembly area (A); The first frame (50) is distributed on the side of the first crossbeam (13) away from the second crossbeam (14), and the second frame (60) is distributed on the side of the second crossbeam (14) away from the first crossbeam (13); The first longitudinal beam (11) has a first insertion interface (111) and a second insertion interface at both ends; the first frame (50) is detachably connected to one end of a pair of first longitudinal beams (11) through the first insertion interface (111); the second frame (60) is detachably connected to the other end of a pair of first longitudinal beams (11) through the second insertion interface. The first crossbeam (13) has a pair of first through holes (131) that correspond one-to-one with the first insertion interface (111) and are connected to each other so that the first frame (50) and the first longitudinal beam (11) can be inserted into each other; the second crossbeam (14) has a pair of second through holes that correspond one-to-one with the second insertion interface and are connected to each other so that the second frame (60) and the first longitudinal beam (11) can be inserted into each other.

2. The vehicle chassis according to claim 1, characterized in that, The chassis body (10) further includes a third crossbeam (15) disposed between the first crossbeam (13) and the second crossbeam (14), the third crossbeam (15) being fixedly connected to a pair of first longitudinal beams (11) and a pair of second longitudinal beams (12), and the third crossbeam (15) being used to divide the assembly area (A) into a first assembly area (A1) and a second assembly area (A2); Among them, a portion of the multiple battery components (20) are distributed in the first assembly area (A1), and another portion of the multiple battery components (20) are distributed in the second assembly area (A2).

3. The vehicle chassis according to claim 2, characterized in that, The vehicle chassis also includes: a first controller (30) and a second controller (40); The first controller (30) is located in the first assembly area (A1) and is distributed on one side close to the first crossbeam (13). The first controller (30) is connected to a portion of the battery components (20) distributed in the first assembly area (A1). The second controller (40) is located in the second assembly area (A2) and is distributed on one side near the second crossbeam (14). The second controller (40) is connected to another part of the battery components (20) distributed in the second assembly area (A2).

4. The vehicle chassis according to claim 2, characterized in that, The first longitudinal beam (11), the second longitudinal beam (12), the first transverse beam (13), the second transverse beam (14) and the third transverse beam (15) are all hollow through beams.

5. The vehicle chassis according to claim 1, characterized in that, The sidewall of the first longitudinal beam (11) has a plurality of first mounting holes (V1) communicating with the first insertion interface (111) and a plurality of second mounting holes (V2) communicating with the second insertion interface; The arrangement direction of the plurality of first mounting holes (V1) and the arrangement direction of the plurality of second mounting holes (V2) are both parallel to the extension direction of the first longitudinal beam (11), and at least one of the plurality of first mounting holes (V1) is used to fix the first frame (50), and at least one of the plurality of second mounting holes (V2) is used to fix the second frame (60).

6. The vehicle chassis according to claim 1, characterized in that, The chassis also includes a reinforcing plate (16) located in the buffer zone (B), with the two sides of the reinforcing plate (16) fixedly connected to the adjacent first longitudinal beam (11) and second longitudinal beam (12).

7. The vehicle chassis according to any one of claims 1 to 6, characterized in that, The vehicle chassis also includes an accessory connected to the battery component (20), the accessory being fixed to the buffer zone (B).

8. An electric vehicle, characterized in that, It includes the vehicle chassis as described in any one of claims 1-7, as well as wheels and vehicle body connected to the vehicle chassis.

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