CN116691836A - Box girder type frame body, frame assembly and vehicle - Google Patents

Abstract

The present application provides a box girder frame body, a frame assembly and a vehicle. The box girder frame body is an extruded integrally formed profile structure. Includes cargo box floor. The box girder plate is arranged parallel to the bottom plate of the cargo box. The longitudinal box girder is connected and arranged between the cargo box floor and the box girder plate. The longitudinal box girder, the cargo box floor, and the box girder plate form at least three hollow cavities, and the hollow cavities run through the longitudinal box girder along the longitudinal direction of the vehicle. . By processing the longitudinal box girder, box girder plate and cargo box bottom plate into a highly integrated one-piece structure, there is no need to arrange independent beams in the middle of the frame structure, which effectively reduces the weight of the frame. The bottom plate of the cargo box can be directly used as the bottom plate of the cargo box, which solves the problem of difficult and complicated assembly of the vehicle frame and the cargo box. The hollow cavity can be used to accommodate vehicle components such as power batteries, effectively utilizing the space of the frame structure.

Description

Box girder frame body, frame assembly and vehicle

technical field

The present application relates to the technical field of vehicles, in particular to a box girder frame body, a frame assembly and a vehicle.

Background technique

The chassis frame used by commercial vehicles usually adopts double-sided longitudinal beams, and a plurality of beams are assembled between the bilateral longitudinal beams by welding or bolting. Since there are more beams arranged in the middle of the frame structure, the space in the middle of the frame is wasted, and the weight of the chassis frame is large. Moreover, the connection between the vehicle frame and the container has many parts, complex structure and difficult assembly.

Contents of the invention

The present application provides a box girder frame body, a frame assembly and a vehicle to solve at least part of the problems in the related art.

According to the first aspect of the embodiments of the present application, there is provided a box girder frame body, the frame body is a profile structure integrally formed by extrusion;

The frame body includes:

container floor;

The box girder plate is arranged parallel to the bottom plate of the cargo box;

The longitudinal box girder is connected and arranged between the cargo box bottom plate and the box girder plate, at least three hollow cavities are formed between the longitudinal box girder, the cargo box bottom plate, and the box girder plate, and the The hollow cavity runs through the longitudinal box girder along the longitudinal direction of the vehicle.

Optionally, transverse sections of at least two of the hollow cavities are arranged symmetrically along the transverse direction of the vehicle.

Optionally, the bottom plate of the cargo box further includes a connecting edge beam, and the connecting edge beam protrudes from the bottom plate of the cargo box, and is used for connecting and fixing the cargo box or the side panel of the cargo box.

According to the second aspect of the embodiment of the present application, there is provided a frame assembly, the frame assembly is partially processed by cutting the front end and the rear end of a box girder type frame body as described in the first aspect;

The vehicle frame assembly includes a middle section of the vehicle frame, and the middle section of the vehicle frame is composed of the uncut box girder type vehicle frame body as described in the first aspect.

Optionally, the vehicle frame assembly also includes a front section of the vehicle frame, which is made by partially removing the cargo box floor, the box girder plate and the longitudinal box girder of the front section of the vehicle frame.

Optionally, the frame assembly further includes a rear frame, which is made by partially removing the box girder plate and the longitudinal box girder at the rear portion of the frame.

According to a third aspect of the embodiments of the present application, there is provided a frame assembly, including a front frame, a middle frame, and a rear frame connected in sequence;

The front frame is an extruded integral profile structure, including a front box girder;

The middle frame is composed of the box girder frame body as described in the first aspect;

The rear frame is an extruded integral profile structure, including a rear box girder.

Optionally, the front box girder is longitudinally connected with the longitudinal box girder of the middle frame and the front end of the box girder plate through a connecting piece.

Optionally, the rear box girder is longitudinally connected to the longitudinal box girder of the middle frame and the rear end of the box girder plate through a connecting piece.

Optionally, the rear section frame also includes a sub-cargo box floor, and the sub-cargo box bottom plate and the rear box girder are profile-type integrally extruded structures; the sub-cargo box floor is longitudinally connected to The rear ends of the container floor of the middle section of the vehicle frame are connected to each other.

According to a fourth aspect of the embodiments of the present application, a vehicle is provided, including the vehicle frame assembly described in the second aspect or the third aspect.

The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

The chassis frame of the vehicle of the present application forms a highly integrated integrated structure by processing the longitudinal box girder, the box girder plate and the cargo box bottom plate, and does not need to arrange an independent beam in the middle of the frame structure, which effectively reduces the weight of the frame. the weight of. The top plate above the frame body can be directly used as the bottom plate of the container, which solves the problem of difficult and complicated assembly of the frame and the container. The hollow cavity can be used to accommodate vehicle components such as power batteries, effectively utilizing the space of the frame structure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Description of drawings

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

FIG. 1 is a schematic perspective view of a box girder frame body according to an exemplary embodiment of the present application.

Fig. 2 is a front view of a box girder frame body according to an exemplary embodiment of the present application.

Fig. 3 and Fig. 4 are front views of box girder frame bodies of other exemplary embodiments of the present application.

Fig. 5 is a schematic perspective view of a vehicle frame assembly according to an exemplary embodiment of the present application.

FIG. 6 is a schematic perspective view of a vehicle frame assembly according to another exemplary embodiment of the present application.

FIG. 7 is a front view of the rear frame of the frame assembly shown in FIG. 6 .

FIG. 8 is a side view of a vehicle according to an exemplary embodiment of the present application.

FIG. 9 is a rear view of a vehicle according to an exemplary embodiment of the present application.

FIG. 10 is a bottom view of a vehicle according to an exemplary embodiment of the present application.

FIG. 11 is another front view of the box girder frame body described in FIG. 2 of the present application.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. Unless otherwise defined, the technical terms or scientific terms used in the application shall have the ordinary meanings understood by those skilled in the art to which the application belongs. "First", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a" or "one" do not denote a limitation in quantity, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front", "rear", "lower" and/or "upper" are used for convenience of description only and are not intended to be limiting to a position or orientation in space. "Includes" or "comprises" and similar terms mean that the elements or items listed before "comprises" or "comprises" include the elements or items listed after "comprises" or "comprises" and their equivalents, and do not exclude other elements or objects. Words such as "connected" or "connected" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

The present application provides a box girder frame body, a frame assembly and a vehicle. The box girder frame body, frame assembly and vehicle of the present application will be described in detail below with reference to the accompanying drawings. If there is no conflict, the features in the following embodiments and implementations can be combined with each other.

Referring to FIG. 1 to FIG. 2 and FIG. 11 , the embodiment of the present application provides a box girder frame body, which can be applied to a car frame, a ship frame, and the like. For example, it can be applied to commercial vehicles such as new energy vehicles or fuel vehicles, and commercial vehicles can include cargo vehicles, trucks, semi-trailer tractors, flatbed trailers, trucks, heavy trucks, light trucks and other vehicles. The box girder frame body is an extruded integral profile structure, which may include: a plurality of longitudinal box girders 10 , box girder plates 40 and a cargo box floor 20 . Wherein, the box girder plate 40 is located below the container bottom plate 20 and is arranged parallel to the container bottom plate 20 . The longitudinal box girder 10 is connected and arranged between the cargo box floor 20 and the box girder plate 40, and at least three hollow cavities for accommodating vehicle-mounted components are formed enclosed between the longitudinal box girder 10, the box girder plate 40 and the cargo box floor 20 Body 30. Optionally, the plurality of hollow cavities 30 are arranged along the vehicle transverse direction Y, and the vehicle transverse direction Y is perpendicular to the longitudinal direction X of the hollow cavities 30 . It can be understood that the longitudinal direction of the vehicle is the longitudinal direction of the vehicle, and the longitudinal direction X of the longitudinal box girder 10 , the cargo box floor 20 and the hollow cavity 30 is consistent with the longitudinal direction of the vehicle.

The box girder frame body of the present application processes and shapes the longitudinal box girder 10, the box girder plate 40 and the cargo box bottom plate 20 into a highly integrated integrated structure, and does not need to arrange an independent beam in the middle of the frame structure, effectively The weight of the frame is reduced to meet the design requirements of the lightweight trend. The frame can be used directly without beams and bolts, and the installation is faster and more efficient. The container bottom plate 20 can be directly used as the bottom plate of the container, and can be assembled with the side panels of the container, which solves the problem of difficult and complicated assembly of the vehicle frame and the container. The hollow cavity 30 can be used to accommodate components such as a power battery of a new energy vehicle, effectively utilizing the space of the frame structure. It should be noted that the on-vehicle components can be devices such as large-power power batteries, large-volume liquid fuel tanks, gas storage barrels, fuel tanks, batteries, engines, gearboxes, electronic control devices, and other functional devices. Applications are not limited to this.

In some optional embodiments, the box girder frame body may further include packaging plates, which are covered at both ends of the hollow cavity 30 for sealing the hollow cavity 30 . In this way, after the power battery and other components are placed in the hollow cavity 30 and sealed by the packaging plate, the concealment and sealing performance can be improved. Optionally, the packaging plate is an aluminum plate, which is welded and connected to the integrated structure formed by the longitudinal box girder 10 , the box girder plate 40 and the container bottom plate 20 .

In some optional embodiments, the longitudinal box girder 10, the box girder plate 40 and the container bottom plate 20 are all made of aluminum alloy, and the box girder plate 40, the longitudinal box girder 10 and the container bottom plate 20 are integrally formed by extrusion molding. The structure, that is, the aluminum alloy material is forcibly extruded through the extrusion molding process to form it through the hole die, so that the longitudinal box girder 10, the box girder plate 40 and the cargo box bottom plate 20 form an integrally formed structure.

In this way, the aluminum alloy extrusion molding process is used to form the longitudinal box girder 10, the box girder plate 40 and the cargo box bottom plate 20 into an integrated structure, and the hollow cavity formed by extruding the integral aluminum alloy wall and tailor-welded aluminum plate The space is large, and it can be used as an installation shell for battery cells or fuels such as methanol. There is no need to connect the power battery box to the frame through additional brackets, which effectively solves the waste of space caused by battery installation and fuel tank installation. question. It is equivalent to integrating the frame beam, the bottom plate of the cargo box, the battery pack or the fuel tank, and the inner wall of the hollow cavity can be used as the shell of the liquid fuel tank (or power battery box) of the vehicle, so that the bottom plate of the cargo box, the frame beam, The battery case is three in one. Due to the extensive use of aluminum alloy materials, aluminum alloy materials have the advantages of being recyclable and recyclable. The application and high integration of aluminum alloy materials, as well as the highly integrated frame, can effectively reduce the weight of light truck frames. At the same time, it can meet the layout requirements of large-power power battery and large-volume liquid fuel tank, reduce the installation of power battery and cargo box, solve the problem of complex assembly of the whole vehicle, optimize the layout space, and simplify parts such as frame and cargo box The process of production and final assembly has reduced the cost. To meet the needs of commercial vehicle frame lightweight development, market competition cost reduction, production efficiency improvement, carbon neutrality and other needs.

In some optional embodiments, the transverse sections of at least two hollow cavities 30 are arranged symmetrically along the transverse direction Y of the vehicle, so that the forces on both sides of the frame can be balanced and the stability of the frame can be improved. Optionally, the plurality of longitudinal box girders 10 are arranged symmetrically along the transverse direction Y of the vehicle relative to the centerline of the cargo box floor 20 , so that the transverse sections of at least two hollow cavities 30 are arranged symmetrically along the transverse direction Y of the vehicle.

Referring to FIG. 2 , in some optional embodiments, the cargo box floor 20 also includes a connecting side beam 21, and the connecting side beam 21 protrudes from the cargo box floor 20 for connecting and fixing the cargo box or the sides of the cargo box plate. Optionally, there are two connecting side beams 21, which are connected to both sides of the upper surface of the container floor 20 along the vehicle transverse direction Y. It can be understood that the longitudinal box girder 10 , the cargo box bottom plate 20 , the box girder plate 40 and the two connecting side beams 21 are all made of aluminum alloy and formed into an integrated structure by extrusion process. In this way, for the box girder frame body of the present application, the bottom plate 20 of the cargo box can be directly used as the bottom plate of the cargo box, and can be directly assembled by connecting the side beam 21 and the side plate of the cargo box, which solves the problem of the vehicle frame and the cargo box. Difficult assembly and complex assembly problems. Optionally, the connecting side beam 21 is provided with a mounting portion for mounting a container. For example, the installation part may be a screw hole, an installation groove and other structures for installation and cooperation with the side plate of the cargo box. In this way, the container can be directly installed on the two side protrusions on the upper surface of the bottom plate, and assembled with the bottom plate through bolt connection or push-in clamping.

In some optional embodiments, along the vehicle transverse direction Y perpendicular to the longitudinal direction X of the hollow cavity 30 , the thickness of the container floor 20 gradually decreases from the middle to both sides. The bottom surface of the cross-section of the cargo box floor 20 along the plane where the vehicle transverse direction Y is located is arc-shaped and concave toward the interior of the hollow cavity 30 , the vehicle transverse direction Y is perpendicular to the longitudinal direction X of the hollow cavity 30 . It can be understood that the container floor 20 forms an equal-stress beam whose section is thick in the middle and thin at both ends, and has a relatively large load-bearing capacity. Further, a plurality of reinforcing ribs may be provided in the middle of the cargo box floor 20 to improve the strength and rigidity of the cargo box floor. The wall thickness of the longitudinal box girder 10, that is, the thickness of the side beam 12 can be set to a larger size to improve the load-bearing capacity, and a reinforcing rib can also be added in the middle of the longitudinal box girder 10 to play the role of the main bearing part and the installation base. In this way, it is more beneficial to install structures such as suspension brackets, cab suspensions, and other device brackets of the vehicle on both sides of the longitudinal box girder 10 .

In some optional embodiments, at least one of the longitudinal box girder 10 and the container floor 20 is a porous profile structure. It can be understood that at least one of the longitudinal box girder 10 and the cargo box floor 20 can be formed into a corrugated board structure by extrusion, so as to strengthen and improve the strength and rigidity of the vehicle frame. The inner side corner position of at least one of the longitudinal box girder 10 and the cargo box floor 20 may form a cavity portion by extrusion molding. In this way, a small cavity is extruded at the inner corner of the aluminum alloy extruded integrally formed vehicle frame, which can greatly enhance the bending resistance of the aluminum alloy extruded integrally formed vehicle frame.

The inner wall of the hollow cavity 30 may be provided with guide grooves. It can be understood that grooves can be made on the inner wall of the bottom wall of the container floor 20 corresponding to the bottom wall of the hollow cavity 30. In this way, components such as power batteries can be pushed inwards into the hollow cavity through the guide groove for assembly, and then can be assembled through the packaging board. seal.

In some optional embodiments, the cross-section of the hollow cavity along the plane where the vehicle transverse direction Y is located may be quadrilateral. It can be understood that the quadrilateral structure has better stress resistance and higher structural strength, which can improve the overall strength of the chassis frame.

Referring to FIG. 3 , optionally, each longitudinal box girder 10 can be arranged obliquely relative to the container floor 20 , so that the overall shape formed by the cross-section of at least one hollow cavity 30 along the plane where the vehicle transverse direction Y is located can be trapezoidal. For example, in this embodiment, the longitudinal box girders 10 located on the outermost sides are inclined relative to the cargo box floor 20 and arranged symmetrically with each other, so that the cross-section of the overall shape formed by the plurality of hollow cavities 30 can be trapezoidal. Optionally, the length of the upper base of the trapezoid is greater than the length of the lower base, so that the cross-section of the overall shape formed by the plurality of hollow cavities 30 is an inverted trapezoid. It can be understood that the force on both sides of the inverted trapezoidal structure is more uniform, the load-bearing capacity of the upper surface is stronger, and the structural strength is higher, thereby improving the overall strength of the chassis frame.

Further, referring to FIG. 4 , the section of the longitudinal box girder 10 may be arc-shaped, for example, in this embodiment, the section of the longitudinal box girder 10 located on the outermost two sides is arc-shaped and faces the hollow cavity 30 internal depression. It can be understood that the structure of the curved side is more uniform in force on both sides, and the structural strength is higher, which can also improve the overall strength of the frame, and the structure of the curved side is more convenient for extrusion processing.

Referring to Fig. 5, the embodiment of the present application also proposes a frame assembly 100, the frame assembly 100 is partially processed by cutting the front end and the rear end of a box girder frame body described in the above embodiments and implementation modes made. Wherein, the frame assembly 100 includes a middle section frame 101, which is composed of the box girder type frame body which has not been cut. It can be understood that the frame assembly 100 of this embodiment is obtained by partially cutting and removing the box girder frame body.

Optionally, the frame assembly 100 also includes a front frame 102 , which is made by partially removing the cargo box floor 20 , part of the box girder plate 40 and part of the longitudinal box girder 10 at the front part of the frame. It can be understood that on the basis of the box girder frame body, all the cargo box floor 20 corresponding to the front part of the frame is cut and removed, and the corresponding front part of the frame, the longitudinal box girders 10 on both sides and the box The beam plate 40 is cut and removed, and the longitudinal box girder 10 and the box girder plate 40 located in the middle area corresponding to the front section of the frame are retained. The formed front section frame 102 can be used as the front box beam 50 for installing the cab, which can be understood as It is composed of the longitudinal box girder 10 and the box girder plate 40 reserved in the front part of the corresponding vehicle frame. A first hollow cavity 51 is formed on the front box beam 50 for placing vehicle components, which can be understood as being surrounded by the longitudinal box beam 10 and the box beam plate 40 reserved in the front section of the corresponding vehicle frame.

The frame assembly 100 also includes a rear section frame 103, which is made by partially removing part of the box girder plate 40 and part of the longitudinal box girder 10 at the rear section of the frame. It can be understood that, on the basis of the box girder frame body, the rear part of the corresponding frame, the longitudinal box girder 10 and the box girder plate 40 on both sides are cut and removed, and the corresponding part of the rear part of the frame, The longitudinal box girder 10 and the box girder plate 40 located in the middle area, the removed longitudinal box girder 10 and the box girder plate 40 on the formed rear frame 103 can be used for installing wheels.

Referring to FIG. 6 , the embodiment of the present application also proposes a frame assembly 100 , including a front frame 102 , a middle frame 101 , and a rear frame 103 connected in sequence. Wherein, the front frame 102 is an extruded integral profile structure, including the front box girder 50 . The middle frame 101 is composed of a box girder frame body described in the above embodiments and implementations. The rear frame 103 is an extruded integral profile structure, including the rear box girder 60 . It can be understood that the frame assembly 100 of this embodiment is composed of a plurality of individual extruded structures, which are assembled into a whole by clamping, bonding, riveting and other connection methods.

Optionally, the front box beam 50 is longitudinally connected with the front end of the longitudinal box beam 10 and the box beam plate 40 in the middle area of the middle frame 101 through a connecting piece. The rear box beam 60 is longitudinally connected with the rear end of the longitudinal box beam 10 and the box beam plate 40 in the middle area of the middle frame 101 through a connecting piece. In this way, the front box beam 50 can be used to install the cab, and the first hollow cavity 51 is formed on the front box beam 50, which can be used to place vehicle components. The first hollow cavity 51 may communicate with one of the hollow cavities 30 of the middle frame 101 . Areas on either side of the rear box beam 60 are available for mounting wheels.

Further, the rear frame 103 also includes a sub-cargo box floor 70, and the sub-cargo box floor 70 and the rear box beam 60 are a profile-type integral extrusion molding structure. The sub cargo box floor 70 is connected to the rear end of the cargo box floor 20 of the middle section vehicle frame 101 through the connecting piece in the longitudinal direction, so as to form an integral body with the cargo box floor 20 . Optionally, the rear box beam 60 is located below the sub-cargo box floor 70, and the rear box beam 60 and the sub-cargo box floor 70 enclose to form a second hollow cavity 31, which can be used to place vehicle components.

Referring to FIG. 7 , in some optional embodiments, the rear box beam 60 includes a bottom side beam 61 and two side side beams 62, and the two side side beams 62 are respectively located at two sides of the bottom side beam 61 along the transverse direction Y of the vehicle. side. The bottom edge beam 61 is located below the bottom plate 70 of the sub-cargo box, one end of the side beam 62 is connected to the bottom edge beam 61 , and the other end is connected to the bottom plate 70 of the sub-cargo box. In this way, the base beam 61 , the two side beams 62 and the sub-container floor 70 enclose to form the second hollow cavity 31 . It can be understood that the base beam 61 , the two side beams 62 and the bottom plate 70 of the sub-container are all made of aluminum alloy, and are formed into an integrated structure by extrusion process. Optionally, the cross section of the second hollow cavity 31 along the plane where the vehicle transverse direction Y is located is quadrilateral. It can be understood that the quadrilateral structure has better stress resistance and higher structural strength, which can improve the overall strength of the vehicle frame. Optionally, the thickness of the side beam 62 is greater than that of the bottom beam 61, which can increase the load-bearing capacity of both sides of the rear frame.

Optionally, the cross-section of the second hollow cavity 31 along the plane where the transverse direction Y of the vehicle is located may be trapezoidal, and the two side rails 62 are symmetrically arranged on both sides of the side rail 61 along the transverse direction Y of the vehicle, and the upper bottom edge of the cross-section The length of the second hollow body 31 is greater than the length of the lower base of the cross section, so that the cross section of the second hollow cavity 31 is an inverted trapezoid. It can be understood that the force on both sides of the inverted trapezoidal structure is relatively uniform, the upper surface has a stronger load-bearing capacity, and the structural strength is higher, thereby improving the overall strength of the vehicle frame.

Further, the cross-section of the two side beams 62 along the plane where the transverse direction Y of the vehicle is located is arc-shaped, and is concave toward the inside of the second hollow cavity 31 . It can be understood that the structure of the curved side is more uniform in force on both sides, and the structural strength is higher, which can also improve the overall strength of the frame, and the structure of the curved side is more convenient for extrusion processing.

It can be understood that the cross section of the vehicle frame assembly of the present application is mainly divided into two main parts: namely, the beam part at the lower end and the floor part at the upper end. According to the requirements of different equipment sizes, the extruded section of the main body can be obtained as an integrally extruded box girder frame body through cutting and removal process, that is, the example shown in Fig. 5 . The extruded section of the main body can also be extruded separately in several parts, and then assembled into a whole by clamping, bonding, riveting and other connection methods, that is, the example shown in Figure 6.

Referring to FIG. 1 , and FIG. 8 to FIG. 10 , the embodiment of the present application provides a vehicle 200 , which may include the vehicle frame assembly 100 as shown in FIG. 5 or FIG. 6 . The vehicle 200 may also include a cab 43 , a cargo box 41 , and a power unit 42 . It can be understood that the longitudinal direction X of the hollow cavity 30 is consistent with the longitudinal direction of the vehicle 200 . The power unit 42 is installed in the hollow cavity 30 of the vehicle frame assembly 100 , the cargo box 41 is installed on the cargo box floor 20 , and the cab 43 is installed on the front box beam 50 of the front section vehicle frame 102 . Optionally, the power device 42 may include at least one of a power battery and a fuel tank. Further, the power battery includes an electric core, and the inner wall of the hollow cavity 30 surrounded by the electric core can be used as the casing of the power battery. It can be understood that the hollow cavity can be used as the casing of the power battery box (or liquid fuel tank) of the vehicle, so that the bottom plate of the cargo box, the frame beam, and the casing of the battery are integrated into one. The frame assembly 100 does not need to arrange an independent beam in the middle of the frame structure, which effectively reduces the weight of the frame and meets the design requirements of the lightweight trend. The frame can be used directly without beams and bolts, and the installation is faster and more efficient. The container bottom plate 20 can be directly used as the bottom plate of the container, and can be assembled with the side panels of the container, which solves the problem of difficult and complicated assembly of the vehicle frame and the container. The hollow cavity 30 can be used to accommodate components such as a power battery, effectively utilizing the space of the vehicle frame structure.

In some optional embodiments, the vehicle 200 may further include wheels 45 , front and rear axles 46 , leaf spring suspensions 47 , electronic control device arrangement boxes 48 , other device arrangement boxes 49 and the like. Wherein, the front and rear axles 46 are connected to the longitudinal box girder 10 of the vehicle frame assembly 100 through leaf spring suspensions 47 , and the wheels 45 are connected to the front and rear axles 46 . The mounting bolts of larger devices such as leaf spring suspension 47 can be connected by means of casing embedded structure and the like. Ordinary connecting bolts can be connected by slotting on the inner wall of the longitudinal box girder 10 and welding nuts on the inner side of the outer wall, or by inserting nut plates on the inner side of the longitudinal box girder 10 for screw connection.

The electronic control device arrangement box 48 can be installed in the first hollow cavity 51 of the front box beam 50 of the front section frame 102 , corresponding to the area of the front section of the vehicle (that is, corresponding to the cab 43 ). The power unit 42 can be installed in the hollow cavity, and the other device arrangement box 49 can be installed in the hollow cavity of the rear frame 103, so that the space of the frame can be reasonably utilized.

Other embodiments of the application will be readily apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any modification, use or adaptation of the application, these modifications, uses or adaptations follow the general principles of the application and include common knowledge or conventional technical means in the technical field not disclosed in the application . The specification and examples are to be considered exemplary only, with a true scope and spirit of the application indicated by the following claims.

It should be understood that the present application is not limited to the precise constructions which have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (11)

1. A box beam type vehicle frame body, characterized in that, the vehicle frame body is an extruded integrally formed profile structure; The frame body includes: container floor; The box girder plate is arranged parallel to the bottom plate of the cargo box; The longitudinal box girder is connected and arranged between the cargo box bottom plate and the box girder plate, at least three hollow cavities are formed between the longitudinal box girder, the cargo box bottom plate, and the box girder plate, and the The hollow cavity runs through the longitudinal box girder along the longitudinal direction of the vehicle. 2 . The box girder frame body according to claim 1 , wherein the transverse sections of at least two of the hollow cavities are arranged symmetrically along the transverse direction of the vehicle. 3 . 3. The box girder frame body according to claim 2, characterized in that, the bottom plate of the cargo box also includes a connecting side beam, and the connecting side beam protrudes from the bottom plate of the cargo box for connecting and Secure the cargo box or cargo box sides. 4. A vehicle frame assembly, characterized in that the vehicle frame assembly is partially processed by cutting the front end and the rear end of a box girder type vehicle frame body as claimed in any one of claims 1-3; The vehicle frame assembly includes a middle section of the vehicle frame, and the middle section of the vehicle frame is composed of the uncut box girder type vehicle frame body according to any one of claims 1-3. 5. The vehicle frame assembly according to claim 4, characterized in that, the vehicle frame assembly also includes a front section of the vehicle frame, and the front section of the vehicle frame is partially removed by removing the cargo box floor, the box girder plate and the front section of the vehicle frame. Longitudinal box girders are made. 6. The vehicle frame assembly according to claim 5, characterized in that, the vehicle frame assembly also includes a rear section of the frame, and the rear section of the vehicle frame is partially removed from the box girder plate and the longitudinal section of the rear section of the frame. Box girders are made. 7. A frame assembly, characterized in that it comprises a front frame, a middle frame, and a rear frame which are sequentially connected; The front frame is an extruded integral profile structure, including a front box girder; The middle frame is composed of the box girder frame body according to any one of claims 1-3; The rear frame is an extruded integral profile structure, including a rear box girder. 8 . The frame assembly according to claim 7 , wherein the front box girder is longitudinally connected with the longitudinal box girder of the middle frame and the front end of the box girder plate through connecting pieces. 9 . The vehicle frame assembly according to claim 7 , wherein the rear box beam is longitudinally connected with the longitudinal box beam of the middle frame and the rear end of the box beam plate through connecting pieces. 10 . 10. The vehicle frame assembly according to claim 9, wherein the rear section of the vehicle frame further comprises a sub-cargo box floor, and the sub-cargo box floor and the rear box beam are integrally extruded in a profile type Structure; the sub-container floor is connected longitudinally with the rear end of the cargo box floor of the middle frame through a connecting piece. 11. A vehicle, characterized by comprising the vehicle frame assembly according to any one of claims 4-10.