Vehicle frame and vehicle

Abstract

A vehicle frame and a vehicle. The vehicle frame (100) comprises a vehicle frame body, which is of a profile-type integrally-formed structure and which comprises a bottom plate (20) and a vehicle frame longitudinal beam (10) located below the bottom plate (20). A hollow cavity (30) is formed by means of the enclosure of the vehicle frame longitudinal beam (10) and the bottom plate (20), and is used for accommodating vehicle-mounted components therein. The front section of the vehicle frame (100) in a longitudinal direction is further provided with a cab support beam (50), which is connected to the front end of the vehicle frame body in the longitudinal direction.

Description

Frame and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202310805746.9, filed on June 30, 2023, the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to, but is not limited to, the field of vehicle technology, and in particular to a vehicle frame and a vehicle. Background Art

[0004] The chassis frame used in commercial vehicles usually adopts double-sided longitudinal beams, and multiple cross beams are assembled between the double-sided longitudinal beams by welding or bolting.

[0005] Summary of the Invention

[0006] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0007] The present application provides a frame and a vehicle.

[0008] According to a first aspect of an embodiment of the present application, a vehicle frame is provided, comprising: a frame body, which is a profile-type one-piece molded structure, the frame body comprising a bottom plate and a frame longitudinal beam located below the bottom plate, wherein a hollow cavity is defined between the bottom plate and the frame longitudinal beam, and the hollow cavity is surrounded by the bottom plate and the frame longitudinal beam; and a cab support beam, which is arranged at the front section of the frame in the longitudinal direction and is connected to the front end of the frame body in the longitudinal direction.

[0009] Optionally, the cab support beam and the frame body are an integrally formed profile structure, and are formed by removing part of the bottom plate and part of the frame longitudinal beam from the front section of the frame body in the longitudinal direction.

[0010] Optionally, the cab support beam is a profile-type one-piece structure and is connected to the frame longitudinal beam through a connecting piece.

[0011] Optionally, fixed base plates are further provided on the two longitudinal sides of the upper surface of the bottom plate, and the bottom plate and the two fixed base plates are a profile-type one-piece molded structure for installing and fixing the cargo box.

[0012] Optionally, the frame longitudinal beam includes a bottom side beam and two side beams, the bottom side beam is located below the bottom plate, one end of the side beam is connected to the bottom side beam, and the other end is connected to the bottom plate; the bottom side beam, the two side beams and the bottom plate enclose the hollow cavity.

[0013] Optionally, at least one of the frame longitudinal rail and the bottom plate is a porous profile structure.

[0014] Optionally, the vehicle frame further includes a packaging plate, and the packaging plate covers both longitudinal ends of the hollow cavity.

[0015] Optionally, the packaging plate is an aluminum plate, which is welded to the frame longitudinal beam and the bottom plate.

[0016] Optionally, along a first direction perpendicular to the longitudinal direction, the thickness of the bottom plate gradually decreases from the middle to both sides; and / or the bottom edge of the cross section of the bottom plate perpendicular to the longitudinal direction is arc-shaped and concave toward the interior of the hollow cavity.

[0017] Optionally, the frame longitudinal beam and the bottom plate are made of the same material; and / or the frame longitudinal beam and the bottom plate are both made of aluminum alloy.

[0018] Optionally, the cross section of the cab support beam perpendicular to the longitudinal direction coincides with the cross section of the frame longitudinal beam perpendicular to the longitudinal direction; and / or the frame longitudinal beam, the cab support beam and the bottom plate are all made of aluminum alloy; and / or the cab support beam forms a hollow sub-cavity connected to the hollow cavity.

[0019] According to a second aspect of an embodiment of the present application, a vehicle is provided, comprising a cab, a cargo box, a power unit, and a frame as described in the first aspect, wherein the power unit is installed in the hollow cavity, the cargo box is installed on the bottom plate, and the cab is installed on the cab support beam.

[0020] Optionally, the power device includes at least one of a power battery and a fuel tank.

[0021] Optionally, the power battery includes a battery cell, and the inner wall of the hollow cavity surrounding the battery cell serves as an outer shell of the power battery.

[0022] Optionally, the cab support beam forms a hollow sub-cavity corresponding to the front section of the vehicle and connected to the hollow cavity; the vehicle also includes an electronic control device and other functional devices, the electronic control device is installed in the hollow sub-cavity, the power device is installed in the area of ​​the hollow cavity corresponding to the middle section of the vehicle, and the other functional devices are installed in the area of ​​the hollow cavity corresponding to the rear section of the vehicle.

[0023] The vehicle frame of the present application integrates the frame longitudinal beams and the floor into an integrally formed structure. This highly integrated structure eliminates the need for a crossbeam in the middle of the frame structure, effectively reducing the weight of the frame. The cargo box can be mounted directly on the floor, resolving the difficulties and complexities of assembling the frame and cargo box. The cab support beam protrudes from the floor and can be used to mount the vehicle cab. The hollow cavity formed by the frame longitudinal beams and the floor can be used to accommodate vehicle components such as power batteries, effectively utilizing the space in the frame structure.

[0024] It should be understood that the above general description and the following detailed description are only exemplary and explanatory and cannot limit the present application. Other aspects can be understood after reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] FIG1 is a perspective schematic diagram of a profile-type integrated vehicle frame according to an exemplary embodiment of the present application.

[0027] FIG. 2 is a front view of the profile-type integrated vehicle frame in FIG. 1 .

[0028] FIG3 is a front view of a profile-type integrated vehicle frame according to another exemplary embodiment of the present application.

[0029] FIG4 is a side view of a vehicle according to an exemplary embodiment of the present application.

[0030] FIG5 is a rear view of a vehicle according to an exemplary embodiment of the present application.

[0031] FIG6 is a bottom view of a vehicle according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0033] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar words used in this specification and claims do not indicate any order, quantity, or importance, but are simply used to distinguish different components. Similarly, terms such as "a" or "an" do not indicate a quantitative limitation, but rather indicate the presence of at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper," "top," and "bottom" are used for ease of description only and are not limited to a single position or spatial orientation. Terms such as "include" or "comprises" mean that the elements or objects listed before "include" or "comprises" include the elements or objects listed after "include" or "comprises," and their equivalents, and do not exclude other elements or objects. The words “connected” or “connected” and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0034] As used in this application and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0035] As mentioned above, commercial vehicle chassis frames typically utilize bilateral longitudinal beams, with multiple crossbeams welded or bolted between them. The placement of these crossbeams in the center of the frame results in wasted space and increased chassis weight. Furthermore, the connection between the frame and the cargo box is complex, requiring numerous parts and making assembly difficult.

[0036] In view of this, the present application provides a frame and a vehicle.

[0037] The frame and vehicle of the present application are described in detail below with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0038] 1 and 2 , an embodiment of the present application provides a profile-type integrated frame 100 that can be applied to vehicles such as automobiles and ships. For example, the frame 100 can be applied to commercial vehicles such as new energy vehicles or fuel vehicles, and commercial vehicles can include vehicles such as cargo vehicles, trucks, semi-trailer tractors, flatbed trailers, trucks (e.g., heavy trucks, light trucks), etc. The frame 100 includes: a frame body, which is a profile-type integrated molding structure, and includes a base plate 20 and a frame longitudinal beam 10 located below the base plate 20. The "profile-type integrated molding structure" here is a profile-type structure prepared using a process similar to the profile-type integrated molding process. The frame longitudinal beam 10 is connected to the lower surface of the base plate 20, and the frame longitudinal beam 10 and the base plate 20 enclose a hollow cavity 30 for accommodating vehicle-mounted components. In other words, a hollow cavity 30 is defined between the base plate 20 and the frame longitudinal beam 10, and the hollow cavity 30 is surrounded by the base plate 20 and the frame longitudinal beam 10. The vehicle frame 100 also includes a cab support beam 50. The cab support beam 50 is disposed at the longitudinal front section of the vehicle frame 100 and is connected to the longitudinal front end of the vehicle frame body. The cab support beam 50 protrudes from the floor panel 20. It will be understood that the longitudinal direction is the length of the vehicle. The length direction X of the frame rails 10, floor panel 20, and hollow cavity 30 all coincides with the length of the vehicle.

[0039] The profile-type integrated frame 100 of the present application processes the frame longitudinal beams 10 and the bottom plate 20 into an integrally formed structure. The frame longitudinal beams 10 and the bottom plate 20 are highly integrated, and there is no need to arrange a cross beam in the middle of the frame structure, which effectively reduces the weight of the frame and meets the design requirements of lightweight frame. The frame can be used directly without cross beams and bolts, and the installation is faster and more efficient. The cargo box can be directly installed on the bottom plate 20, and the bottom plate 20 can be assembled with the side panels of the cargo box, which solves the problem of difficult and complicated assembly of the frame and the cargo box. The cab support beam 50 is arranged to protrude from the bottom plate 20 and can be used to install the vehicle's cab. The hollow cavity 30 formed by the frame longitudinal beams 10 and the bottom plate 20 can be used to accommodate vehicle components such as power batteries, effectively utilizing the space of the frame structure. It should be noted that the vehicle-mounted components can be large-capacity power batteries, large-volume liquid fuel tanks, gas tanks, oil tanks, batteries, engines, gearboxes, layout boxes for electronic control devices, layout boxes for other functional devices, etc. This application does not impose any restrictions on this.

[0040] In some optional embodiments, the vehicle frame 100 may further include an enclosure plate that covers the longitudinal ends of the hollow cavity 30 to enclose the hollow cavity 30. This encapsulation plate, enclosing the hollow cavity 30 containing the power battery and other on-board components, can improve the concealment and sealing of the on-board components. Optionally, the enclosure plate is an aluminum plate that is welded (e.g., tailor-welded) to the integrally formed structure formed by the frame rails 10 and the floor panel 20.

[0041] In some optional embodiments, the frame rails 10 and the bottom plate 20 are both made of aluminum alloy, and the frame rails 10 and the bottom plate 20 are an extruded one-piece structure, that is, the aluminum alloy material is forcibly extruded through an extrusion molding process so that it is formed through a hole die, so that the frame rails 10 and the bottom plate 20 are formed into an one-piece structure, and the cross-sections of the one-piece structure perpendicular to the length direction X of the hollow cavity 30 are all the same.

[0042] In this way, the frame longitudinal beam 10 and the bottom plate 20 are formed into an integrally formed structure using an aluminum alloy extrusion forming process. The hollow cavity formed by the extruded integral aluminum alloy wall and the welded aluminum plate has a large cavity space and can be used as a battery cell for a power battery or a fuel tank for a liquid fuel such as methanol. This is equivalent to integrating the frame beam, the cargo box bottom plate, the power battery or the liquid fuel tank into one, and there is no need to connect the power battery box or the liquid fuel tank to the frame through an additional bracket, which effectively solves the problem of space waste caused by battery installation / fuel tank installation. The inner wall of the hollow cavity can be used as the outer shell of the vehicle's liquid fuel tank or power battery box, thus combining the cargo box bottom plate, the frame beam, and the outer shell of the liquid fuel tank or power battery into one. Aluminum alloy materials have the advantages of being recyclable and reusable. The large-scale use and high integration of aluminum alloy materials, as well as the high integration of the frame, effectively reduce the weight of the frame. At the same time, it can meet the requirements for arranging large-capacity power batteries and large-volume liquid fuel tanks, reducing the installation of power batteries, liquid fuel tanks, and cargo boxes, solving the problem of complex vehicle assembly, optimizing layout space, simplifying the production and assembly processes of parts such as the frame and cargo box, and reducing costs. Furthermore, it can meet the needs of lightweighting commercial vehicle frames, reducing market competitive costs, improving production efficiency, and achieving carbon neutrality.

[0043] In some optional embodiments, the cross-section of the cab support beam 50 perpendicular to the lengthwise direction X of the hollow cavity 30 coincides with the cross-section of the frame rail 10 perpendicular to the lengthwise direction X of the hollow cavity 30. This facilitates the integral molding of the cab support beam 50 and the vehicle frame. Furthermore, the cab support beam 50 and the frame rail 10 have the same cross-section, forming a hollow sub-cavity 51 corresponding to the front section of the vehicle and connected to the hollow cavity 30. This sub-cavity can also be used to house vehicle components, fully utilizing the vehicle frame space.

[0044] It is understood that the main cross-section of the unibody frame formed by extruding an aluminum alloy in this application can be divided into two parts: a lower beam portion and an upper bottom plate portion. Depending on the size requirements of different equipment, the main cross-section can be extruded as a single piece or extruded in separate sections, which can then be assembled into a whole through connection methods such as snap-fitting, bonding, or riveting.

[0045] In some optional embodiments, the cab support beam 50 and the vehicle frame body are integrally formed as a profiled structure. The cab support beam 50 is formed by partially removing the bottom plate 20 and frame rails 10 at the longitudinal front section of the vehicle frame body. Specifically, the main cross-section of the vehicle frame body can be extruded as a single piece, and then the bottom plate 20 and frame rails 10 at the front section of the frame body can be partially removed by cutting or other means to form the cab support beam 50. Furthermore, the frame rails 10, cab support beam 50, and bottom plate 20 can all be made of aluminum alloy. The extruded, integral structure of the frame rails 10, cab support beam 50, and bottom plate 20 facilitates processing. In practice, the frame rails and bottom plate can be extruded into a single piece, and then the area of ​​the bottom plate corresponding to the vehicle cab can be removed to reserve space for installing the cab. The front end of the frame rail that protrudes from the removed bottom plate and that is exposed above the bottom plate can be considered the cab support beam.

[0046] In other optional embodiments, the cab support beam 50 is a profiled, integrally molded structure connected to the frame rails 10 via connectors. Specifically, the frame rails 10 and the floor panel 20 are extruded integrally, while the cab support beam 50 is extruded separately and then assembled integrally with the frame rails 10. In other examples, the frame rails and floor panel are extruded integrally from the same material, while the cab support beam is extruded separately and then assembled integrally with the frame rails 10.

[0047] In some optional embodiments, the frame longitudinal beam 10 includes a bottom side beam 11 and two side beams 12, and the two side beams 12 are respectively located on both sides of the bottom side beam 11 along the first direction Y, and the first direction Y is perpendicular to the length direction X of the hollow cavity 30. The bottom side beam 11 is located below the bottom plate 20, and one end of the side beam 12 is connected to the bottom side beam 11, and the other end is connected to the bottom plate 20. In this way, the bottom side beam 11, the two side beams 12 and the bottom plate 20 enclose and form the hollow cavity 30. It is understandable that the bottom side beam 11, the two side beams 12 and the bottom plate 20 are all made of aluminum alloy and are formed into an integrally formed structure through an extrusion process. Optionally, the cross-section of the hollow cavity 30 perpendicular to the length direction X is a quadrilateral. It is understandable that the quadrilateral structure has better stress resistance and higher structural strength, which can improve the overall strength of the frame. Optionally, the thickness of the side beams 12 is greater than the thickness of the bottom beam 11 , which can improve the load-bearing capacity of both sides of the frame longitudinal beam 10 .

[0048] In some optional embodiments, the cross-section of the hollow cavity 30 perpendicular to the longitudinal direction X can be trapezoidal, with the two side beams 12 symmetrically disposed on either side of the bottom beam 11 along the first direction Y. The length of the upper base of the cross-section is greater than the length of the lower base of the cross-section, resulting in the cross-section of the hollow cavity 30 being an inverted trapezoid. It will be appreciated that the inverted trapezoidal structure provides more uniform force on both sides, a greater load-bearing capacity on the upper surface, and higher structural strength, thereby improving the overall strength of the frame.

[0049] Furthermore, the cross-sections of the two side beams 12 perpendicular to the longitudinal direction X are arc-shaped and recessed toward the interior of the hollow cavity 30. It is understood that the arc-shaped side structure provides more uniform force on both sides, has higher structural strength, and can also improve the overall strength of the frame. Furthermore, the arc-shaped side structure is more convenient for extrusion processing.

[0050] As shown in FIG3 , in some optional embodiments, fixed base plates 21 are further provided on both longitudinal sides of the upper surface of the base plate 20. The base plate 20 and the two fixed base plates 21 are a profile-type integrally formed structure for mounting and fixing the cargo box. Optionally, the two fixed base plates 21 are provided on both sides of the upper surface of the base plate 20 along a first direction Y, where the first direction Y is perpendicular to the length direction X of the hollow cavity 30. It is understood that the frame longitudinal beam 10, the base plate 20, and the two fixed base plates 21 are all made of aluminum alloy and formed into an integrally formed structure through an extrusion process. In this way, the frame 100 of the present application and the cargo box can be directly mounted on the base plate 20 and can be directly assembled with the side panels of the cargo box through the fixed base plates 21, thereby solving the problem of difficult and complex assembly of the frame and the cargo box. Optionally, the fixed base plates 21 are provided with a mounting portion for mounting the cargo box. For example, the mounting portion can be a structure such as a screw hole, a mounting slot, etc. for mounting with the side panels of the cargo box. In this way, the cargo box can be directly installed on the fixed base plates on both sides of the upper surface of the base plate, and assembled with the base plate by bolt connection or push-in clamping.

[0051] In some optional embodiments, the length of the frame rail 10 is the same as the length of the bottom plate 20 along the length direction X of the hollow cavity 30. In this way, the hollow cavity 30 is longer and has a larger space, so that more components can be placed in the space of the frame.

[0052] Along a first direction Y perpendicular to the length direction X of the hollow cavity 30, the width of the frame rail 10 is smaller than the width of the bottom plate 20. It will be appreciated that the width of the frame rail 10 being smaller than the width of the bottom plate 20 can leave space for mounting wheels and can also reduce the weight of the frame.

[0053] Along a first direction Y perpendicular to the lengthwise direction X of the hollow cavity 30, the frame rail 10 is located in the middle of the floor panel 20. This allows components such as the power battery to be placed within the hollow cavity 30 enclosed by the frame rail 10 and floor panel 20, keeping the weight of the power battery in the center of the vehicle. This provides a more balanced force on the frame and enhances safety and reliability.

[0054] In some optional embodiments, the thickness of the bottom plate 20 gradually decreases from the middle to both sides along a first direction Y perpendicular to the length direction X of the hollow cavity 30. The bottom edge of the cross section of the bottom plate 20 perpendicular to the length direction X of the hollow cavity 30 is arc-shaped and concave toward the interior of the hollow cavity 30. It can be understood that the bottom plate 20 forms an isostress beam with a cross section that is thick in the middle and thin at both ends, and has a large load-bearing capacity. Furthermore, the bottom plate 20 can also be provided with a plurality of reinforcing ribs to enhance the strength and rigidity of the bottom plate 20. The wall thickness of the frame longitudinal beam 10, that is, the thickness of the side beam 12, can be set to a larger size to improve the load-bearing capacity. Reinforcing ribs can also be added to the frame longitudinal beam 10 to serve as the main load-bearing component and the mounting base. This is more conducive to installing the vehicle's suspension bracket, cab suspension, other device brackets and other structures on both sides of the frame longitudinal beam 10.

[0055] As shown in Figure 2, in some optional embodiments, at least one of the frame rails 10 and the floor panel 20 comprises a porous profile. It is understood that at least one of the frame rails 10 and the floor panel 20 can be extruded to form a corrugated board structure to enhance and improve the strength and rigidity of the frame. The inner corners of at least one of the frame rails 10 and the floor panel 20 can also be extruded to form cavities. Extruding small cavities in the inner corners of the integrally extruded aluminum alloy frame can significantly enhance the frame's bending resistance.

[0056] The inner wall of the hollow cavity 30 may be provided with a guide groove. It is understood that a groove may be provided on the inner wall of the frame rail 10 corresponding to the bottom wall of the hollow cavity 30. In this way, components such as the power battery can be pushed inwardly through the guide groove into the hollow cavity for assembly, and then sealed with a sealing plate.

[0057] The profile-type integrated vehicle frame of the present application can be manufactured in the following two ways.

[0058] (1) The frame longitudinal beam 10 and the bottom plate 20 are formed into an integral structure by, for example, an extrusion molding process. The frame longitudinal beam 10 is located below the bottom plate 20. The frame longitudinal beam 10 and the bottom plate 20 enclose a hollow cavity 30 for accommodating vehicle components. At least part of the inner wall of the hollow cavity 30 can serve as the outer shell of the vehicle's liquid fuel tank (or power battery box). The area corresponding to the vehicle cab is then cut on the bottom plate 20 so that the front end portion of the frame longitudinal beam 10 protrudes from the bottom plate 20 along the length direction X of the vehicle, and the portion of the frame longitudinal beam 10 protruding from the bottom plate 20 forms the cab support beam 50. Optionally, the frame longitudinal beam 10 and the bottom plate 20 are both made of aluminum alloy. The frame longitudinal beam 10 and the bottom plate 20 are an extruded integral structure, that is, the frame longitudinal beam 10 and the bottom plate 20 are formed into an integral structure by forcibly extruding the aluminum alloy material through a die through an extrusion molding process.

[0059] (2) The frame longitudinal beam 10 and the bottom plate 20 are formed into an integral structure by, for example, an extrusion molding process. The frame longitudinal beam 10 is located below the bottom plate 20. The frame longitudinal beam 10 and the bottom plate 20 enclose a hollow cavity 30 for accommodating vehicle components. At least part of the inner wall of the hollow cavity 30 can serve as the outer shell of the vehicle's liquid fuel tank (or power battery box). The cab support beam 50 is formed into an integral structure by, for example, an extrusion molding process. The cab support beam 50 is connected to the front end of the frame longitudinal beam 10 via a connector along the longitudinal direction X of the vehicle. Optionally, the cab support beam 50 and the frame longitudinal beam 10 can be assembled into a whole by physical connection methods such as snapping, bonding, and riveting.

[0060] This creates a highly integrated, one-piece, profiled, integrated frame, while also utilizing the frame's space to create a hollow cavity for accommodating the vehicle's components. It should be understood that the main cross-section of the one-piece frame formed by aluminum alloy extrusion in this application can be divided into two parts: a beam portion at the lower end and a base plate portion at the upper end. Depending on the size requirements of the device, the main cross-section can be extruded as a single piece using the first method described above, or extruded in separate sections using the second method described above, and then assembled into a single unit using connection methods such as snap-fitting, bonding, and riveting.

[0061] Referring to Figures 1 and 4 to 6, an embodiment of the present application provides a vehicle 200, including a cab 43, a cargo box 41, a power unit 42 and a frame 100. It should be noted that the description of the frame 100 in the above embodiments and implementations is also applicable to the vehicle 200 of this embodiment. It can be understood that the length direction X of the hollow cavity 30 is consistent with the length direction of the vehicle 200. The power unit 42 is installed in the hollow cavity 30 of the frame 100, the cargo box 41 is installed on the bottom plate 20, and the cab 43 is installed on the cab support beam 50. Optionally, the power unit 42 may include at least one of a power battery and a fuel tank. Furthermore, the power battery includes a battery cell, and the inner wall of the hollow cavity 30 of the frame 100 surrounding the battery cell can serve as the outer shell of the power battery. It can be understood that the hollow cavity formed by the frame longitudinal beams and the floor can be used as the outer shell of the vehicle's power battery box (or liquid fuel tank). In this way, the cargo box floor, frame beams, and battery shell are combined into one, realizing a highly integrated frame structure with product engineering applications and structural multifunctionality.

[0062] The vehicle 200 of the present application processes the frame longitudinal beams 10 and the bottom plate 20 into an integrally formed structure. The frame longitudinal beams 10 and the bottom plate 20 are highly integrated, and there is no need to arrange a cross beam in the middle of the frame structure, which effectively reduces the weight of the frame and meets the design requirements of a lightweight frame. The frame can be used directly without cross beams and bolts, and the installation is faster and more efficient. The cargo box can be directly installed on the bottom plate 20, and the bottom plate 20 can be assembled with the side panels of the cargo box, which solves the problem of difficult and complicated assembly of the frame and the cargo box. The hollow cavity 30 enclosed by the frame longitudinal beams 10 and the bottom plate 20 can be used to accommodate vehicle components such as power batteries, effectively utilizing the space of the frame structure.

[0063] In some optional embodiments, vehicle 200 may further include wheels 45, front and rear axles 46, leaf spring suspensions 47, an electronic control device housing 48, and other device housings 49. The front and rear axles 46 are connected to the frame rails 10 of the vehicle frame 100 via the leaf spring suspensions 47, and the wheels 45 are connected to the front and rear axles 46. Mounting bolts for larger load-bearing devices, such as the leaf spring suspensions 47, can be connected using methods such as a sleeve-embedded structure. Conventional bolts can be connected by slotting the inner wall of the frame rails 10 and welding nuts to the outer wall, or by inserting nut plates into the inner wall of the frame rails 10 for threaded connection.

[0064] Optionally, the cab support beam 50 may be formed with a hollow sub-cavity 51 corresponding to the front section of the vehicle and communicating with the hollow cavity 30. The electronic control device arrangement box 48 may be installed in the hollow sub-cavity 51, corresponding to the front section of the vehicle (i.e., corresponding to the cab 43). The power unit 42 may be installed in the area of ​​the hollow cavity 30 corresponding to the middle section of the vehicle, and the other device arrangement box 49 may be installed in the area of ​​the hollow cavity 30 corresponding to the rear section of the vehicle, thus effectively utilizing the space in the vehicle frame.

[0065] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0066] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A frame, comprising: A frame body, which is a profile-type integrally formed structure and includes a bottom plate and a frame longitudinal beam located below the bottom plate, wherein a hollow cavity is defined between the bottom plate and the frame longitudinal beam, and the hollow cavity is surrounded by the bottom plate and the frame longitudinal beam; and The cab support beam is arranged at the front section of the frame in the longitudinal direction and is connected to the front end of the frame body in the longitudinal direction.

2. The frame according to claim 1, wherein: The cab support beam and the frame body are a profile-type integrally formed structure, and are formed by removing a portion of the bottom plate and a portion of the frame longitudinal beam from the front section of the frame body in the longitudinal direction.

3. The frame of claim 1, wherein: The cab support beam is a profile-type integrally formed structure and is connected to the frame longitudinal beam via a connecting piece.

4. The frame according to any one of claims 1 to 3, wherein: Fixed base plates are also provided on the two longitudinal sides of the upper surface of the bottom plate. The bottom plate and the two fixed base plates are a profile-type one-piece structure used for installing and fixing the cargo box.

5. The frame according to any one of claims 1 to 4, wherein: The frame longitudinal beam comprises a bottom side beam and two side beams, the bottom side beam is located below the bottom plate, one end of the side beam is connected to the bottom side beam, and the other end is connected to the bottom plate; The bottom edge beam, the two side edge beams and the bottom plate enclose the hollow cavity.

6. The frame according to any one of claims 1 to 5, wherein: At least one of the frame rail and the floor is a porous profile structure.

7. The vehicle frame according to any one of claims 1 to 6, further comprising a packaging plate, wherein the packaging plate covers both longitudinal ends of the hollow cavity.

8. The frame of claim 7, wherein: The packaging plate is an aluminum plate, which is welded to the frame longitudinal beam and the bottom plate.

9. A frame according to any one of claims 1 to 8, wherein: Along a first direction perpendicular to the longitudinal direction, the thickness of the bottom plate gradually decreases from the middle to both sides; and / or The bottom edge of the cross section of the bottom plate perpendicular to the longitudinal direction is arc-shaped and recessed toward the inside of the hollow cavity.

10. The frame according to any one of claims 1 to 9, wherein: The frame rails and the bottom plate are made of the same material; and / or The frame longitudinal beam and the bottom plate are both made of aluminum alloy.

11. The frame according to any one of claims 1 to 10, wherein: The cross section of the cab support beam perpendicular to the longitudinal direction coincides with the cross section of the frame longitudinal beam perpendicular to the longitudinal direction; and / or The cab support beam is formed with a hollow sub-cavity communicated with the hollow cavity.

12. A vehicle comprising a cab, a cargo box, a power unit and a frame as claimed in any one of claims 1 to 11, wherein the power unit is installed in the hollow cavity, the cargo box is installed on the bottom plate, and the cab is installed on the cab support beam.

13. The vehicle of claim 12, wherein: The power device includes at least one of a power battery and a fuel tank.

14. The vehicle of claim 13, wherein: The power battery comprises a battery core, and the inner wall of the hollow cavity surrounding the battery core serves as the outer shell of the power battery.

15. A vehicle as claimed in any one of claims 12 to 14, wherein: The cab support beam is formed with a hollow sub-cavity corresponding to the area of ​​the front section of the vehicle and connected to the hollow cavity; The vehicle also includes an electronic control device and other functional devices. The electronic control device is installed in the hollow sub-cavity, the power device is installed in the area of ​​the hollow cavity corresponding to the middle section of the vehicle, and the other functional devices are installed in the area of ​​the hollow cavity corresponding to the rear section of the vehicle.

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