Integrated frame for new energy vehicles, new energy trucks

Abstract

The present invention relates to the field of vehicle engineering technology, and more specifically, to an integrated frame of a new energy vehicle and a new energy truck, comprising: a longitudinal beam, a battery frame, and a battery pack assembly, wherein the longitudinal beam comprises a front longitudinal beam, a middle longitudinal beam, and a rear longitudinal beam connected in sequence, the front longitudinal beam is used to bear the weight of the front part of the vehicle, the middle longitudinal beam is used to support the middle structure of the vehicle, and the rear longitudinal beam is used to support the rear part of the vehicle; the battery frame is arranged on the longitudinal beam, and the battery pack assembly is installed in the inner cavity of the battery frame. It aims to optimize the battery layout, improve the stability and balance of the whole vehicle structure, and solve the problems faced by the traditional frame structure and battery mounting scheme.

Description

Technical Field

[0001] The present invention relates to the field of vehicle engineering technology, and in particular to an integrated frame of a new energy vehicle and a new energy truck. Background Art

[0002] The frame of a new energy truck is a structure that supports and connects the various assemblies of the vehicle to ensure that they remain in the correct position and can withstand various loads from inside and outside. Compared with traditional fuel vehicles, new energy trucks usually use advanced power systems such as electric drive or hybrid power systems to reduce the impact on the environment and improve energy efficiency. Therefore, the frame design of new energy trucks needs to consider the characteristics and requirements of these new power systems. The frame is usually connected across the front and rear axles of the car and adopts a frame-type structure consisting of longitudinal beams and cross beams to provide sufficient support and stability.

[0003] Existing technical solutions and their shortcomings:

[0004] The frame design of new energy trucks faces some challenges and problems. First, the traditional frame structure usually places the battery pack next to the frame when installing the battery pack, which may cause the frame longitudinal beam to twist, thus affecting the life and layout of the battery pack. Secondly, the problem of battery mounting is also a key challenge. How to effectively arrange the battery pack inside the frame to maximize the use of space and ensure safety and stability is a complex engineering problem. These problems directly affect the performance and endurance of new energy trucks, so innovative solutions are needed to address these problems. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated frame for new energy vehicles, which aims to optimize the battery layout, improve the stability and balance of the vehicle structure, and solve the problems faced by traditional frame structures and battery mounting solutions.

[0006] Another object of the present invention is to provide a new energy truck, which aims to optimize the battery layout, improve the stability and balance of the vehicle structure, and solve the problems faced by traditional frame structures and battery mounting solutions.

[0007] The technical solution of the present invention is achieved in this way:

[0008] An integrated frame of a new energy vehicle, comprising: a longitudinal beam, a battery frame, and a battery pack assembly, wherein the longitudinal beam comprises a front longitudinal beam, a middle longitudinal beam, and a rear longitudinal beam connected in sequence, the front longitudinal beam is used to bear the weight of the front part of the vehicle, the middle longitudinal beam is used to support the middle structure of the vehicle, and the rear longitudinal beam is used to support the rear part of the vehicle;

[0009] The battery frame is arranged on the longitudinal beam, and the battery pack assembly is installed in the inner cavity of the battery frame.

[0010] Furthermore, it also includes a crossbeam assembly, the battery frame is located between the front longitudinal beam and the rear longitudinal beam, and the battery frame is fixedly connected to the front longitudinal beam, the middle longitudinal beam and the rear longitudinal beam at the same time through the crossbeam assembly.

[0011] Furthermore, the battery frame is a rectangular frame, and the battery frame includes a front side plate, a left side plate, a rear side plate and a right side plate which are sequentially connected end to end.

[0012] Furthermore, angled joint plates are respectively provided at the four corners of the battery frame for connecting any two adjacent side plates among the front side plate, the left side plate, the rear side plate and the right side plate.

[0013] Furthermore, a beam placement groove for placing the middle longitudinal beam is provided in the middle of the front side plate and the rear side plate in the longitudinal direction;

[0014] The middle longitudinal beam comprises an upper support beam and a lower main beam of an integrated structure, the lower main beam is located between the front side plate and the rear side plate, and the two ends of the lower main beam are respectively fixedly connected to the front side plate and the rear side plate;

[0015] The upper support beam is located in the beam placement groove, and the front longitudinal beam, the front side plate and the upper support beam, and the rear longitudinal beam, the rear side plate and the upper support beam are fixedly connected together through crossbeam assemblies.

[0016] Furthermore, two ends of the upper support beam extend beyond the outer sides of the front side plate and the rear side plate respectively;

[0017] The left side plate and the right side plate are symmetrically arranged with respect to the middle longitudinal beam;

[0018] The front longitudinal beam includes two first longitudinal beams symmetrically arranged with respect to the middle longitudinal beam, and the rear longitudinal beam includes two second longitudinal beams symmetrically arranged with respect to the middle longitudinal beam.

[0019] Further, the cross beam assembly includes two symmetrically arranged connecting beams, the connecting beam includes a U-shaped portion, the U-shaped portion includes a first side portion, a second side portion and a third side portion connected in sequence, and the two connecting beams in the cross beam assembly are connected and fixed by at least two sets of bolt assemblies;

[0020] A first installation space for installing the connecting beam is formed between the two first longitudinal beams and the upper support beam, and the two connecting beams of the cross beam assembly are respectively arranged in the two first installation spaces; wherein the first side portion is connected and fixed to the first longitudinal beam by a plurality of bolts, the second side portion is connected and fixed to the front side plate by a plurality of bolts, and the third side portion is connected and fixed to the upper support beam by a plurality of bolts;

[0021] Second installation spaces for installing the connecting beam are also formed between the two second longitudinal beams and the upper support beam, and the two connecting beams of the cross beam assembly are respectively arranged in the two second installation spaces; wherein, the first side portion and the second longitudinal beam are connected and fixed by multiple bolts, the second side portion and the rear side plate are connected and fixed by multiple bolts, and the third side portion and the upper support beam are connected and fixed by multiple bolts.

[0022] Furthermore, the connecting beam also includes a fastening portion, which is simultaneously connected to the first side portion, the second side portion and the third side portion and is an integrally formed structure. The fastening portion is connected and fixed to the battery frame by a plurality of bolts. A connecting portion is provided on the fastening portion, and the two connecting beams in the crossbeam assembly are connected and fixed by installing at least two groups of the bolt assemblies on the two connecting portions.

[0023] Furthermore, structural reinforcements are respectively provided between the outer side of the first longitudinal beam and the front side plate, and between the outer side of the second longitudinal beam and the rear side plate.

[0024] A new energy truck comprises the integrated frame of the new energy vehicle.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The overall structure of the integrated frame of the present application adopts a three-section structural design in the longitudinal direction, including a front longitudinal beam located in the front section, a middle longitudinal beam and a battery frame located in the middle section, and a rear longitudinal beam located in the rear section. Among them, the front longitudinal beam bears the weight of the front part of the vehicle, the middle longitudinal beam is responsible for supporting the middle structure of the vehicle, and the rear longitudinal beam supports the rear of the vehicle. The battery frame is placed in the middle section of the longitudinal beam, and the battery frame is used to install the battery pack assembly (the battery pack assembly includes a water cooling plate and a battery pack, and the water cooling plate can provide heat dissipation for the battery pack). Secondly, the middle section of the frame adopts a double-wing connection structure combining a single middle longitudinal beam and a battery frame to optimize the layout of the battery. This design makes the left and right arrangement of the battery more flexible, while enhancing the bending and torsion resistance of the middle battery frame. For the entire frame structure, the integrated three-section structure is adopted, which effectively enhances the structural support of the battery frame and improves the structural strength of the entire frame, providing stronger support for the vehicle, improving the stability and balance of the vehicle structure, and can solve the problems faced by traditional frame structures and battery mounting solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is an axonometric view of the integrated frame of the present invention;

[0029] Figure 2 It is a schematic diagram of the connection structure of the front longitudinal beam and the cross beam assembly of the present invention;

[0030] Figure 3 This is a schematic diagram of the connection structure between the longitudinal beam and the battery frame in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the crossbeam assembly of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the battery pack assembly of the present invention.

[0033] In the figure:

[0034] 1-front longitudinal beam; 101-first longitudinal beam;

[0035] 2-middle longitudinal beam; 201-upper support beam; 2011-cover plate; 2012-through slot; 202-lower main beam;

[0036] 3-rear longitudinal beam; 301-second longitudinal beam;

[0037] 4-battery frame; 401-front side plate; 402-left side plate; 403-rear side plate; 404-right side plate; 405-angle joint plate;

[0038] 5-crossbeam assembly; 50-connecting beam; 501-U-shaped portion; 5011-first side portion; 5012-second side portion; 5013-third side portion; 502-fastening portion; 5021-connecting portion;

[0039] 6-battery pack assembly; 601-battery pack; 602-water cooling plate;

[0040] 7- Structural reinforcements. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0048] Example 1

[0049] In response to the defects existing in the prior art, the present application relates to a frame of a new energy truck and its design scheme, aiming to optimize the battery layout and improve the stability and balance of the entire vehicle structure.

[0050] Reference Figure 1-Figure 5 The present embodiment provides an integrated frame of a new energy vehicle, a longitudinal beam, a battery frame 4, and a battery pack assembly 6, wherein the longitudinal beam comprises a front longitudinal beam 1, a middle longitudinal beam 2, and a rear longitudinal beam 3 connected in sequence, the front longitudinal beam 1 is used to bear the weight of the front of the vehicle, the middle longitudinal beam 2 is used to support the middle structure of the vehicle, and the rear longitudinal beam 3 is used to support the rear of the vehicle; the battery frame 4 is arranged on the longitudinal beam, and the battery pack assembly 6 is installed in the inner cavity of the battery frame 4. The battery pack assembly 6 comprises a water cooling plate 602 and a battery pack 601, and the water cooling plate 602 can provide heat dissipation for the battery pack 601.

[0051] The integrated vehicle frame adopts a three-section structural design in the longitudinal direction, including a front longitudinal beam 1 located in the front section, a middle longitudinal beam 2 and a battery frame 4 located in the middle section, and a rear longitudinal beam 3 located in the rear section.

[0052] The vehicle frame further includes a crossbeam assembly 5 , the battery frame 4 is located between the front longitudinal beam 1 and the rear longitudinal beam 3 , and the battery frame 4 is fixedly connected to the front longitudinal beam 1 , the middle longitudinal beam 2 and the rear longitudinal beam 3 at the same time through the crossbeam assembly 5 .

[0053] In this embodiment, the battery frame 4 is a rectangular frame, and the battery frame 4 includes a front side plate 401, a left side plate 402, a rear side plate 403 and a right side plate 404 connected in sequence from head to tail. Among the four side plates, the front side plate 401 is the same as the rear side plate 403, and the left side plate 402 is the same as the right side plate 404. The end surfaces of both ends of the front side plate 401, the left side plate 402, the rear side plate 403 and the right side plate 404 are respectively designed with an inclined surface structure with an inclination of 45°. When the four side plates are connected, the inclined surface structures of the ends of two adjacent side plates fit together.

[0054] In order to further improve the connection strength between the four side plates of the battery frame 4, angled joint plates 405 are respectively provided at the four corners of the battery frame 4 for connecting any two adjacent side plates among the front side plate 401, the left side plate 402, the rear side plate 403 and the right side plate 404. When the angle joint plate 405 is made of steel, the angle joint plate 405 is an angle iron or angle steel. After the inclined structures at the connections between the front side plate 401, the left side plate 402, the rear side plate 403 and the right side plate 404 are fitted together, they are further connected and fixed by the angle iron. Specifically, for example, at the outer corner position of the connection between the front side plate 401 and the left side plate 402, the angle iron is vertically arranged, one side plate of the angle iron is fitted with the outer side surface of the front side plate 401 and fixed by multiple bolts, and the other side is fitted with the outer side surface of the left side plate 402 and fixed by multiple bolts, thereby further connecting and fixing the front side plate 401 and the left side plate 402 by the angle iron; similarly, the installation of the angle iron at the connection between the left side plate 402 and the rear side plate 403, the connection between the rear side plate 403 and the right side plate 404, and the connection between the right side plate 404 and the front side plate 401 is also the same, and no further details are given.

[0055] The middle parts of the front side plate 401 and the rear side plate 403 are provided with a beam placement groove for placing the middle longitudinal beam 2 in the longitudinal direction. The beam placement grooves on the front side plate 401 and the rear side plate 403 are used to place the middle longitudinal beam 2. Specifically, the middle longitudinal beam 2 includes an upper support beam 201 and a lower main beam 202 of an integrated structure. The length of the upper support beam 201 is greater than that of the lower main beam 202, and the two ends of the upper support beam 201 are respectively beyond the two ends of the lower main beam 202. When installing, the lower main beam 202 is located between the front side plate 401 and the rear side plate 403, and the two ends of the lower main beam 202 are fixedly connected to the front side plate 401 and the rear side plate 403 respectively; the upper support beam 201 is located in the beam groove, and the outer side wall of the upper support beam 201 corresponds to the inner wall of the beam groove, and the two ends of the upper support beam 201 extend beyond the outer sides of the front side plate 401 and the rear side plate 403 respectively, and the left side plate 402 and the right side plate 404 are symmetrically arranged about the middle longitudinal beam 2; the left side, right side and bottom of the upper support beam 201 are respectively abutted against the left inner wall, right inner wall and bottom inner wall of the beam groove. At the same time, the left and right sides of the upper part of the upper support beam 201 are respectively provided with cover plates 2011 along their length direction, and the top of the front side plate 401 or the rear side plate 403 is pressed by the cover plate 2011, so that each position of the upper support beam 201 is closely fitted with the battery frame 4, so as to facilitate the subsequent firm connection therebetween.

[0056] When each position of the upper support beam 201 is closely fitted with the battery frame 4, the front longitudinal beam 1, the front side plate 401 and the upper support beam 201, and the rear longitudinal beam 3, the rear side plate 403 and the upper support beam 201 are fixedly connected together by the cross beam assembly 5 respectively.

[0057] In this embodiment, the front longitudinal beam 1 includes two first longitudinal beams 101 symmetrically arranged with respect to the middle longitudinal beam 2, and the rear longitudinal beam 3 includes two second longitudinal beams 301 symmetrically arranged with respect to the middle longitudinal beam 2. Meanwhile, the cross beam assembly 5 includes two symmetrically arranged connecting beams 50, the connecting beam 50 includes a U-shaped portion 501, the U-shaped portion 501 includes a first side portion 5011, a second side portion 5012 and a third side portion 5013 connected in sequence, and the two connecting beams 50 in the cross beam assembly 5 are connected and fixed by at least two sets of bolt assemblies, so as to facilitate the disassembly of the connecting beams 50.

[0058] A first installation space for installing the connecting beam 50 is formed between the two first longitudinal beams 101 and the upper support beam 201, and the first installation space is a groove-shaped space surrounded by the first longitudinal beam 101, the front side plate 401 and the upper support beam 201. During actual installation, the two connecting beams 50 of the cross beam assembly 5 are respectively arranged in the two first installation spaces; wherein the first side portion 5011 is connected and fixed to the first longitudinal beam 101 by multiple bolts, the second side portion 5012 is connected and fixed to the front side plate 401 by multiple bolts, and the third side portion 5013 is connected and fixed to the upper support beam 201 by multiple bolts; the function of the connecting beam 50 located at this end of the front longitudinal beam 1 is: the first side portion 5011, the second side portion 5012, and the third side portion 5013 are used to simultaneously connect and fix the first longitudinal beam 101, the front side plate 401 and the upper support beam 201, and after the connection and fixation, the two connecting beams 50 in the cross beam assembly 5 are connected and fixed by at least two groups of bolts.

[0059] A second installation space for installing the connecting beam 50 is also formed between the two second longitudinal beams 301 and the upper support beam 201. The second installation space is a groove-shaped space surrounded by the second longitudinal beam 301, the rear side plate 403 and the upper support beam 201. In actual installation, the two connecting beams 50 of the cross beam assembly 5 are respectively arranged in the two second installation spaces; wherein the first side portion 5011 is connected and fixed to the second longitudinal beam 301 by multiple bolts, the second side portion 5012 is connected and fixed to the rear side plate 403 by multiple bolts, and the third side portion 5013 is connected and fixed to the upper support beam 201 by multiple bolts. The function of the connecting beam 50 at this end of the rear longitudinal beam 3 is: the first side portion 5011, the second side portion 5012, and the third side portion 5013 are used to simultaneously connect and fix the second longitudinal beam 301, the rear side plate 403 and the upper support beam 201, and after the connection and fixation, the two connecting beams 50 in the cross beam assembly 5 are connected and fixed by at least two groups of bolts.

[0060] The first longitudinal beam 101 and the second longitudinal beam 301 can be grooved beams respectively. When actually installed, the grooves of the two first longitudinal beams 101 are set correspondingly, and the grooves of the two second longitudinal beams 301 are also set correspondingly. When the U-shaped portion 501 is installed, the first side portion 5011 of the U-shaped portion 501 extends into the groove of the first longitudinal beam 101 or the second longitudinal beam 301, fits with the bottom of the groove, and is then fixed by multiple bolts.

[0061] It should be noted that a plurality of corresponding positioning holes are respectively provided on the first side portion 5011 of the U-shaped portion 501 and the first longitudinal beam 101 or the second longitudinal beam 301, a plurality of corresponding positioning holes are respectively provided on the second side portion 5012 and the front side plate 401 or the rear side plate 403, and a plurality of corresponding positioning holes are respectively provided on the third side portion 5013 and the upper support beam 201. When assembling the U-shaped portion 501 at this end of the front longitudinal beam 1, positioning pins are pre-assembled in all the positioning holes and then the connecting bolts are assembled to realize the positioning assembly between the connecting beam 50 and the first longitudinal beam 101, the front side plate 401, and the upper support beam 201, as well as the positioning assembly between the connecting beam 50 and the second longitudinal beam 301, the rear side plate 403, and the upper support beam 201.

[0062] Specifically, the connecting beam 50 also includes a fastening portion 502, which is connected to the first side portion 5011, the second side portion 5012 and the third side portion 5013 at the same time and is an integrally formed structure to ensure the structural strength of the connecting beam 50 itself. The connecting beam 50 as a whole can be cast in one piece. The fastening portion 502 is located under the U-shaped portion 501. The fastening portion 502 can increase the contact area between the connecting beam 50 and the battery frame 4. After the U-shaped portion 501 is fixed, a plurality of bolts are installed on the fastening portion 502 to improve the connection firmness with the battery frame 4, so that the fastening portion 502 and the battery frame 4 are connected and fixed by a plurality of bolts. A connecting portion 5021 is provided on the fastening portion 502, and the two connecting beams 50 in the crossbeam assembly 5 are connected and fixed by installing at least two groups of bolt assemblies on the two connecting portions 5021. The function of the fastening portion 502 is to increase the contact area between the connecting beam 50 and the front side plate 401 or the rear side plate 403 of the battery frame 4 and improve the connection effect therebetween. Due to the design of the connecting portion 5021, a bolt connection between the two connecting beams 50 can also be established.

[0063] The vehicle frame is integrated with the battery frame 4: The battery layout is taken into consideration when the vehicle frame is designed. The battery frame 4 is cleverly integrated into the vehicle frame rather than simply attached to the frame, thereby improving the safety and service life of the battery.

[0064] Structural reinforcements 7 are respectively arranged between the outer side of the first longitudinal beam 101 and the front side plate 401, and between the outer side of the second longitudinal beam 301 and the rear side plate 403. The structural reinforcement 7 is L-shaped, and is arranged at the corner of the first longitudinal beam 101 and the front side plate 401. One section of the structural reinforcement 7 is correspondingly attached to the outer side surface of the first longitudinal beam 101 and fixed by multiple bolts, and the other section is correspondingly attached to the outer side surface of the front side plate 401 and fixed by multiple bolts; the structural reinforcement 7 is also arranged at the corner of the second longitudinal beam 301 and the rear side plate 403. One section of the structural reinforcement 7 is correspondingly attached to the outer side surface of the second longitudinal beam 301 and fixed by multiple bolts, and the other section is correspondingly attached to the outer side surface of the rear side plate 403 and fixed by multiple bolts. Through the arrangement of multiple structural reinforcements 7, the connection strength between the front longitudinal beam 1 and the battery frame 4, and the connection strength between the rear longitudinal beam 3 and the battery frame 4 are further improved.

[0065] Therefore, the front longitudinal beam 1, the middle longitudinal beam 2 and the battery frame 4 can be fastened together through the crossbeam assembly 5, and the rear longitudinal beam 3, the middle longitudinal beam 2 and the battery frame 4 can also be fastened together. The battery frame 4 is connected to the frame longitudinal beam through the crossbeam assembly 5 to prevent the battery frame from being subjected to excessive deformation force and to protect the battery from being squeezed. The various components of the frame are gradually connected together to form an integrated structural design. This design not only improves the flexibility of the battery layout and the stability of the vehicle structure, improves the rigidity of the vehicle, but also optimizes the performance of the vehicle, making it more suitable for the application scenarios of new energy heavy-duty trucks.

[0066] The battery frame 4 adopts a three-section structural design in the horizontal direction (i.e., left and right direction), which makes the left and right arrangement of the battery more flexible, and at the same time enhances the bending and torsion resistance of the battery frame 4; the left side plate 402 and the right side plate 404 are symmetrically arranged on both sides of the middle longitudinal beam 2, forming a unique "double-wing" connection structure, which makes the left and right layout of the battery more flexible, optimizes the battery layout, and also enhances the battery frame 4's ability to resist bending and torsion. Multiple vertical beam mounting points are considered inside the battery frame 4 to facilitate the placement of battery cells and modules to achieve efficient space utilization. The battery pack 601 and the water-cooling plate 602 are each laid out in three layers, and each layer of battery pack 601 is directly laid on a layer of water-cooling plate 602, such as Figure 5 , realize the three-layer battery layout box design, effectively utilize the internal space of the battery frame 4, increase the battery layout capacity, and enhance the endurance. In addition, by adding the structural reinforcement 7, the structural reinforcement 7 is equivalent to the reinforcement rib, which effectively enhances the structural support of the battery frame 4 and provides stronger support for the vehicle.

[0067] A through groove 2012 is provided in the center of the top surface of the upper support beam 201 along the longitudinal direction to realize the separate routing of the water circuit, the electric circuit and the gas circuit, thereby optimizing the interior space layout of the vehicle.

[0068] The entire longitudinal beam can be made of aluminum alloy. The front longitudinal beam 1, the middle longitudinal beam 2 and the rear longitudinal beam 3 are connected in sections to form an aluminum alloy frame structure, which improves the bending and torsional resistance while meeting the requirements of lightweight, and is more convenient for battery layout and driving expansion.

[0069] It should be noted that at least one first cross beam may be provided between the two first longitudinal beams 101 to improve the connection effect and installation stability therebetween; at least one second cross beam may be provided between the two second longitudinal beams 301 to improve the connection effect and installation stability therebetween.

[0070] Example 2

[0071] A new energy truck comprises the integrated frame of the new energy vehicle.

[0072] The beneficial effects of the technical solution of the present invention are:

[0073] This application proposes a new integrated frame design, aiming to solve the problems faced by traditional frame structures and battery mounting solutions. This design adopts a three-section design of the longitudinal beam and a double-wing connection structure of the battery frame 4, integrating the battery frame 4 into the frame, effectively solving the problem of the impact of the torsion of the frame longitudinal beam on the battery pack 601. At the same time, a double-wing connection structure is used to optimize the layout of the battery and improve the stability and balance of the entire vehicle. This design not only improves the carrying capacity and overall performance of new energy trucks, but also provides room for sustainable improvement in future designs. It is of great significance and necessity, and will have a positive impact on the development and promotion of new energy trucks.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated frame for a new energy vehicle, characterized in that: include: A longitudinal beam, a battery frame (4), and a battery pack assembly (6), wherein the longitudinal beam comprises a front longitudinal beam (1), a middle longitudinal beam (2), and a rear longitudinal beam (3) which are connected in sequence, the front longitudinal beam (1) is used to bear the weight of the front part of the vehicle, the middle longitudinal beam (2) is used to support the middle structure of the vehicle, and the rear longitudinal beam (3) is used to support the rear part of the vehicle; The battery frame (4) is arranged on the longitudinal beam, and the battery pack assembly (6) is installed in the inner cavity of the battery frame (4); It also includes a crossbeam assembly (5), the battery frame (4) is located between the front longitudinal beam (1) and the rear longitudinal beam (3), and the battery frame (4) is fixedly connected to the front longitudinal beam (1), the middle longitudinal beam (2) and the rear longitudinal beam (3) through the crossbeam assembly (5); The battery frame (4) is a rectangular frame, and comprises a front side plate (401), a left side plate (402), a rear side plate (403) and a right side plate (404) which are connected in sequence end to end; Angle joint plates (405) are respectively provided at the four corners of the battery frame (4) for connecting any two adjacent side plates among the front side plate (401), the left side plate (402), the rear side plate (403) and the right side plate (404); The middle parts of the front side plate (401) and the rear side plate (403) are provided with a beam placement groove for placing the middle longitudinal beam (2) along the longitudinal direction; The middle longitudinal beam (2) comprises an upper support beam (201) and a lower main beam (202) of an integrated structure, the lower main beam (202) is located between the front side plate (401) and the rear side plate (403), and two ends of the lower main beam (202) are respectively fixedly connected to the front side plate (401) and the rear side plate (403); The upper support beam (201) is located in the beam groove, and the front longitudinal beam (1), the front side plate (401) and the upper support beam (201), and the rear longitudinal beam (3), the rear side plate (403) and the upper support beam (201) are fixedly connected together via the cross beam assembly (5).

2. The integrated frame of a new energy vehicle according to claim 1, characterized in that: Both ends of the upper support beam (201) extend beyond the outer sides of the front side plate (401) and the rear side plate (403); The left side plate (402) and the right side plate (404) are symmetrically arranged with respect to the middle longitudinal beam (2); The front longitudinal beam (1) comprises two first longitudinal beams (101) symmetrically arranged with respect to the middle longitudinal beam (2), and the rear longitudinal beam (3) comprises two second longitudinal beams (301) symmetrically arranged with respect to the middle longitudinal beam (2).

3. The integrated frame of a new energy vehicle according to claim 2, characterized in that: The crossbeam assembly (5) comprises two symmetrically arranged connection beams (50), the connection beam (50) comprises a U-shaped portion (501), the U-shaped portion (501) comprises a first side portion (5011), a second side portion (5012) and a third side portion (5013) connected in sequence, and the two connection beams (50) in the crossbeam assembly (5) are connected and fixed by at least two groups of bolt assemblies; A first installation space for installing the connecting beam (50) is respectively formed between the two first longitudinal beams (101) and the upper support beam (201), and the two connecting beams (50) of the cross beam assembly (5) are respectively arranged in the two first installation spaces; wherein the first side portion (5011) and the first longitudinal beam (101) are connected and fixed by a plurality of bolts, the second side portion (5012) and the front side plate (401) are connected and fixed by a plurality of bolts, and the third side portion (5013) and the upper support beam (201) are connected and fixed by a plurality of bolts; A second installation space for installing the connecting beam (50) is also formed between the two second longitudinal beams (301) and the upper support beam (201), and the two connecting beams (50) of the cross beam assembly (5) are respectively arranged in the two second installation spaces; wherein the first side portion (5011) and the second longitudinal beam (301) are connected and fixed by a plurality of bolts, the second side portion (5012) and the rear side plate (403) are connected and fixed by a plurality of bolts, and the third side portion (5013) and the upper support beam (201) are connected and fixed by a plurality of bolts.

4. The integrated frame of a new energy vehicle according to claim 3, characterized in that: The connecting beam (50) further comprises a fastening portion (502), wherein the fastening portion (502) is simultaneously connected to the first side portion (5011), the second side portion (5012) and the third side portion (5013) and is an integrally formed structure, wherein the fastening portion (502) is connected and fixed to the battery frame (4) by a plurality of bolts, wherein a connecting portion (5021) is provided on the fastening portion (502), and the two connecting beams (50) in the cross beam assembly (5) are connected and fixed by installing at least two groups of the bolt assemblies on the two connecting portions (5021).

5. The integrated frame of the new energy vehicle according to claim 2, characterized in that: Structural reinforcements (7) are respectively provided between the outer side of the first longitudinal beam (101) and the front side plate (401), and between the outer side of the second longitudinal beam (301) and the rear side plate (403).

6. A new energy truck, characterized in that: An integrated frame for a new energy vehicle comprising any one of claims 1-5.

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