Vehicle

Abstract

The utility model discloses a vehicle which comprises a vehicle body, an energy storage system and a supporting frame, the energy storage system comprises a plurality of battery packs, and the battery packs are sequentially connected in the thickness direction of the battery packs; the supporting frame is connected with the vehicle body and the energy storage system and clamps the energy storage system in the thickness direction of the battery pack. Compared with the prior art, according to the scheme, through the design that a middle frame structure is omitted, a plurality of battery packs are overlapped in a gapless mode, and the supporting frame clamps the energy storage system in the thickness direction, stable connection of the energy storage system is guaranteed, and meanwhile the problem of height accumulation of a traditional frame type steel structure is avoided. Effective transverse constraining force can be formed through clamping and supporting in the thickness direction, so that the battery pack is prevented from displacing due to vibration in the running process of a vehicle; the dual-connection structure of the vehicle body and the energy storage system not only ensures the fixing reliability of the battery system, but also disperses the load through a force transmission path in the thickness direction, thereby further reducing the influence of the structure height on the gravity center.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a vehicle. Background Technology

[0002] In recent years, the rapid development of new energy vehicle technology and increasingly stringent global environmental regulations have accelerated the electrification of commercial vehicles. Particularly in the heavy-duty tractor segment, the heavy loads, long driving distances, and high energy consumption place extremely high demands on battery system capacity and driving range. To meet the range requirements of long-distance transportation in heavy-duty commercial vehicles, the total capacity of the battery system often needs to reach hundreds of kilowatt-hours (kWh) or even higher.

[0003] In existing technologies, the battery systems of heavy-duty tractor vehicles typically employ a stacked arrangement of multiple individual battery packs, where each battery pack is layered onto the vehicle frame via a frame-like steel structure. As market demands for vehicle range increase, continuing with this stacked battery pack method would further increase the overall height of the battery system, reaching approximately 2.0 meters or even higher. This height far exceeds a reasonable center of gravity range, resulting in a significantly elevated vehicle center of gravity and drastically impacting vehicle stability and safety performance. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a vehicle that can reduce the overall height and weight of the energy storage system and improve the vehicle's energy efficiency ratio.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vehicle includes a vehicle body, an energy storage system, and a support frame. The energy storage system includes multiple battery packs connected sequentially along its thickness direction. The support frame connects the vehicle body and the energy storage system, and clamps the energy storage system along the thickness direction of the battery packs.

[0007] In one embodiment, the battery pack includes two main sides arranged opposite each other, the area of ​​which is larger than the area of ​​any other side of the battery pack, and the main sides of two adjacent battery packs are attached to each other. In the energy storage system, the main sides located at opposite ends of the energy storage system are connected to the support frame.

[0008] In one embodiment, the support frame includes a horizontal plate and a vertical plate, which are connected at an angle. One side of the vertical plate is attached to and connected to the main side, and the other side is connected to the horizontal plate. The horizontal plate is connected to the vehicle body.

[0009] In one embodiment, the support frame includes multiple reinforcing plates, one end of which is connected to the vertical plate and the other end of which is connected to the horizontal plate.

[0010] In one embodiment, the energy storage system includes a protective bracket, with the protective bracket connected to opposite ends of the battery pack along the length of the battery pack.

[0011] Along the height direction of the battery pack, the protective bracket has multiple first fixing holes and multiple operating holes for communicating with the outside. The multiple operating holes and the multiple first fixing holes correspond one-to-one and are connected. The energy storage system includes a first fixing member, which passes through the first fixing holes on two adjacent protective brackets in sequence to fix the two adjacent protective brackets. And / or, the first fixing member passes through the first fixing holes and connects to the support frame to fix the support frame and the protective bracket.

[0012] In one embodiment, the energy storage system includes a bottom bracket that connects the vehicle body and the battery pack along the height direction of the battery pack.

[0013] The bottom bracket has a second fixing hole, and the energy storage system includes a second fixing member. The second fixing member passes through the second fixing holes on two adjacent bottom brackets in sequence to fix the two adjacent bottom brackets, and / or the second fixing member passes through the second fixing hole and connects to the support frame to fix the support frame and the bottom bracket.

[0014] In one embodiment, the battery pack includes a casing and a plurality of battery cells. The casing includes a main body and an assembly part. An installation space is formed inside the main body. The plurality of battery cells are sequentially arranged in the installation space. The assembly part is located at one end of the main body away from the vehicle body. The assembly part has an electrical compartment that communicates with the installation space. The electrical compartment is used to place electrical components.

[0015] In one embodiment, the battery pack includes a first reinforcing rib and a second reinforcing rib, both of which are disposed within the mounting space. Along the length of the battery pack, the first reinforcing rib spans the mounting space and its opposite ends are respectively connected to the outer shell. Along the height of the battery pack, the second reinforcing rib spans the mounting space and its opposite ends are respectively connected to the outer shell.

[0016] In one embodiment, the vehicle body includes crossbeams and longitudinal beams, which are arranged intersectingly. Along the thickness direction of the battery pack, a plurality of crossbeams are sequentially and spaced apart from the longitudinal beams, wherein at least one crossbeam is connected to the bottom bracket and at least one crossbeam is connected to the support frame.

[0017] In one embodiment, the vehicle body includes a first reinforcing beam and a second reinforcing beam. Along the extension direction of the crossbeam, a plurality of longitudinal beams are arranged at intervals. The first reinforcing beam connects two adjacent longitudinal beams and the first reinforcing beam is connected to the crossbeam. One end of the second reinforcing beam is connected to the outermost longitudinal beam among the plurality of longitudinal beams, and the other end extends obliquely toward the crossbeam and is connected to the crossbeam.

[0018] The beneficial effects of this utility model are as follows: This application provides a vehicle, including a vehicle body, an energy storage system, and a support frame. The energy storage system includes multiple battery packs connected sequentially along their thickness direction. The support frame connects the vehicle body and the energy storage system, and clamps the energy storage system along the thickness direction of the battery packs. Compared with the prior art, this solution eliminates the intermediate frame structure and utilizes the seamless stacking of multiple battery packs. The design of the support frame clamping the energy storage system along the thickness direction ensures a stable connection of the energy storage system while avoiding the height accumulation problem of traditional frame-type steel structures. The clamping support in the thickness direction can form a lateral constraint force, preventing the battery packs from shifting due to vibration during vehicle operation. The dual connection structure between the vehicle body and the energy storage system not only ensures the fixed reliability of the battery system but also disperses the load through the force transmission path in the thickness direction, further reducing the impact of structural height on the center of gravity. At the same time, the support frame only acts on both ends of the energy storage system, achieving a fixed connection between the energy storage system and the vehicle body. This eliminates interlayer structural redundancy and maintains overall stability, significantly reducing the vertical height of the energy storage system under the same capacity requirements. Attached Figure Description

[0019] Figure 1 A structural schematic diagram of a vehicle according to this utility model is shown;

[0020] Figure 2 A schematic diagram of the structure of an energy storage system according to this utility model is shown;

[0021] Figure 3 A schematic diagram of the structure of a battery pack according to this utility model is shown;

[0022] Figure 4 A side view of an energy storage system according to the present invention is shown;

[0023] Figure 5 A cross-sectional schematic diagram of an energy storage system according to the present invention is shown;

[0024] Figure 6 This invention provides an exploded structural diagram of a component of an energy storage system.

[0025] Figure 7 A schematic diagram of the internal structure of an energy storage system according to this utility model is shown;

[0026] Reference numerals: 1. Vehicle body; 11. Crossbeam; 12. Longitudinal beam; 13. First reinforcing beam; 14. Second reinforcing beam;

[0027] 2. Energy storage system; 21. Battery pack; 211. Battery cell; 212. Main side; 215. Outer casing; 2151. Main body; 2152. Assembly part; 2153. Installation space; 2154. Electrical compartment; 216. First reinforcing rib; 217. Second reinforcing rib; 22. Protective bracket; 221. Operating hole; 222. First fixing hole; 23. Bottom bracket; 24. First fixing component; 25. Second fixing component;

[0028] 3. Support frame; 31. Horizontal plate; 32. Vertical plate; 33. Reinforcing plate. Detailed Implementation

[0029] In this utility model, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or constituent parts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] See Figure 1This application provides a vehicle including a vehicle body 1, an energy storage system 2 and a support frame 3. The energy storage system 2 includes multiple battery packs 21, which are connected sequentially along their thickness direction. The support frame 3 is connected to the vehicle body 1 and the energy storage system 2, and clamps the energy storage system 2 along the thickness direction of the battery packs 21.

[0033] The thickness direction refers to the direction of extension of the thinnest dimension of the battery pack 21. See details... Figure 1 , Figure 1 In the middle, the X direction represents the length direction of the battery pack 21, the Y direction represents the thickness direction of the battery pack 21, and the Z direction represents the height direction of the battery pack 21.

[0034] In practical applications, multiple battery packs 21 are arranged sequentially along the thickness direction to form a flat energy storage system 2. This increases the number of battery packs 21 to meet the battery capacity requirements of commercial vehicles. Furthermore, it eliminates the interlayer frame, allowing direct bonding between battery packs 21 and reducing the overall size. The support frame 3 applies clamping forces to both sides of the battery pack 21 along its thickness direction. The vehicle body 1 and the support frame 3 form the main load-bearing structure. The inertial force on the battery pack 21 is transmitted to the vehicle frame through the support frame 3, ensuring the stability and safety of the battery pack 21 during vehicle operation.

[0035] Compared to existing technologies, this solution eliminates the intermediate frame structure and utilizes the seamless stacking of multiple battery packs 21. The design of the support frame 3 clamping the energy storage system 2 along the thickness direction ensures a stable connection of the energy storage system 2 while avoiding the height accumulation problem of traditional frame-type steel structures. The clamping support in the thickness direction can form an effective lateral constraint force, thereby preventing the battery packs 21 from shifting due to vibration during vehicle operation. The dual connection structure between the vehicle body 1 and the energy storage system 2 not only ensures the reliability of the battery system's fixation but also disperses the load through the force transmission path in the thickness direction, further reducing the impact of structural height on the center of gravity. At the same time, the support frame 3 only acts on both ends of the energy storage system 2, achieving a fixed connection between the energy storage system 2 and the vehicle body 1. This eliminates interlayer structural redundancy and maintains overall stability, significantly reducing the vertical height of the energy storage system 2 under the same capacity requirements.

[0036] See Figure 2 The battery pack 21 includes two main sides 212 arranged opposite to each other. The area of ​​the main side 212 is larger than the area of ​​any other side of the battery pack 21. The main sides 212 of two adjacent battery packs 21 are attached to each other. In the energy storage system 2, the main sides 212 located at opposite ends of the energy storage system 2 are connected to the support frame 3.

[0037] In practical applications, the main side surface 212 is the planar area with the largest contact area on the battery pack 21 structure. Taking a rectangular or near-rectangular battery pack as an example, this area is perpendicular to the thickness direction of the battery pack. The main sides of adjacent battery packs fit together, ensuring a tight connection through large-area contact when stacked in the thickness direction, thus forming a stable overall structure. Furthermore, along the thickness direction of the battery pack 21, the outermost battery pack 21 in the energy storage system 2 is connected to the support frame 3. The support frame 3 is connected to the main side surface 212 of the battery pack 21. This design allows the support frame 3 to directly bear the maximum stress area of ​​the battery pack 21, effectively dispersing the longitudinal load by utilizing the large area advantage of the main side surface 212, and preventing support failure caused by local stress concentration.

[0038] See again Figure 2 The support frame 3 includes a horizontal plate 31 and a vertical plate 32. The horizontal plate 31 and the vertical plate 32 are connected at an angle. One side of the vertical plate 32 is attached to the main side 212 and connected to the main side 212, and the other side is connected to the horizontal plate 31. The horizontal plate 31 is connected to the vehicle body 1.

[0039] In practical applications, the horizontal plate 31 and the vertical plate 32 can form an L-shaped cross-section support frame 3. The vertical plate 32 is attached and fixed to the largest area of ​​the main side surface 212 along the thickness direction of the battery pack 21. By evenly distributing the support load on the contact surface, the risk of deformation caused by local stress concentration is avoided. After the horizontal plate 31 is connected to the vehicle body 1, a direct force transmission path is formed from the side of the battery pack 21 to the vehicle body 1. The structural self-locking effect generated by the angled connection is used to suppress the lateral displacement of the battery pack 21 during vehicle operation. The connection point between the vertical plate 32 and the horizontal plate 31 is mainly located at the edge of the main side surface 212 near the vehicle body 1. By reducing the height of the support frame 3 itself, the lifting range of the overall center of gravity of the vehicle is reduced.

[0040] It should be noted that the horizontal plate 31 and the vertical plate 32 form a non-parallel angle. Specifically, they can be formed by welding or integral bending to create a triangular stable structure to improve bending stiffness.

[0041] See again Figure 2 The support frame 3 includes multiple reinforcing plates 33, one end of which is connected to the vertical plate 32 and the other end is connected to the horizontal plate 31.

[0042] In practical applications, multiple reinforcing plates 33 are sequentially spaced along the extension direction of the vertical plate 32. The reinforcing plates 33 can be arranged between the right-angled area formed by the vertical plate 32 and the horizontal plate 31. The two ends of each reinforcing plate 33 are fixedly connected to the side of the vertical plate 32 and the surface of the horizontal plate 31, respectively. When the energy storage system 2 is subjected to impact, the reinforcing plates 33 decompose the load into horizontal and vertical components through their own bending stiffness. The horizontal component is transmitted to the vehicle body 1 by the horizontal plate 31, and the vertical component is converted into shear stress through the vertical plate 32. Multiple reinforcing plates 33 form staggered triangular support units inside the support frame 3, so that the vibration energy from different directions is distributed to different connection points of the vehicle body 1, thereby avoiding overload deformation at a single connection point.

[0043] See Figure 3 The energy storage system 2 includes protective brackets 22, which are connected to opposite ends of the battery pack 21 along its length. The protective brackets 22 are designed to be installed at both ends of the battery pack 21 along its length, and their main function is to absorb and disperse external impact forces. In this way, when the vehicle body 1 is involved in a collision, it can effectively prevent external objects from directly impacting the battery pack 21, thereby avoiding damage to the battery pack 21 during the collision.

[0044] See Figure 3 and Figure 4 Along the height direction of the battery pack 21, the protective bracket 22 has a plurality of first fixing holes 222 and a plurality of operating holes 221. The operating holes 221 are used to connect to the outside. The plurality of operating holes 221 and the plurality of first fixing holes 222 correspond one to one and are connected. The energy storage system 2 includes a first fixing member 24. The first fixing member 24 passes through the first fixing holes 222 on two adjacent protective brackets 22 in sequence to fix the two adjacent protective brackets 22. And / or, the first fixing member 24 passes through the first fixing holes 222 and connects to the support frame 3 to fix the support frame 3 and the protective bracket 22.

[0045] In practical applications, the protective bracket 22 not only protects the battery pack 21 but also provides a fixing function. Specifically, the first fixing holes 222 are arranged at intervals along the height of the protective bracket 22, and each first fixing hole 222 is equipped with a corresponding operating hole 221, allowing external tools to easily install or remove the first fixing member 24 through these operating holes 221. To connect two adjacent battery packs 21, simply insert the first fixing member 24 through one operating hole 221 and then through the corresponding first fixing holes 222 on two adjacent protective brackets 22, and finally tighten it with a nut on the other side to achieve series fixing between the battery packs 21. At the same time, the design of the operating holes 221 facilitates maintenance personnel to quickly disassemble and replace the battery packs 21, improving the maintainability of the system.

[0046] Furthermore, the first fixing member 24 has a dual connection function: firstly, it penetrates the first fixing hole 222 of the adjacent protective bracket 22 to form a series fixation between the battery packs 21, preventing lateral displacement; secondly, it connects the support frame 3 and the protective bracket 22, fixing the energy storage system 2 to the support frame 3, thereby fixing the energy storage system 2 and the vehicle body 1. When it is necessary to connect the entire energy storage system 2 to the support frame 3, the first fixing member 24 can simultaneously penetrate the first fixing hole 222 of the protective bracket 22 and the connection hole of the support frame 3 to achieve a fixed connection between the energy storage system 2 and the support frame 3.

[0047] Through the above technical solutions, this application achieves multi-dimensional rigid connection while reducing the height of the battery system, ensuring structural stability. The design of the operation hole 221 and the fixing hole allows only partial disassembly of the first fixing member 24 during maintenance, significantly shortening maintenance time and reducing operational complexity, thus solving the dual problems of safety hazards and maintenance difficulties caused by the high center of gravity.

[0048] It should be noted that a buffer structure can also be set on the protective bracket 22, for example, a buffer pad can be connected to the side of the protective bracket 22 facing the battery pack 21 or the side away from the battery pack 21 to further absorb the impact force and reduce the damage to the battery pack 21 caused by the collision.

[0049] See again Figure 3 and Figure 4 The energy storage system 2 includes a bottom support 23, which is connected between the vehicle body 1 and the battery pack 21 along the height direction of the battery pack 21. The bottom support 23 is a load-bearing component located between the battery pack 21 and the vehicle body 1, and its main function is to evenly distribute and transfer the load borne by the battery pack 21 to the frame of the vehicle body 1.

[0050] See again Figure 3 and Figure 4 The bottom bracket 23 has a second fixing hole. The energy storage system 2 includes a second fixing member 25. The second fixing member 25 passes through the second fixing holes on two adjacent bottom brackets 23 in sequence to fix the two adjacent bottom brackets 23. And / or, the second fixing member 25 passes through the second fixing hole and connects to the support frame 3 to fix the support frame 3 and the bottom bracket 23.

[0051] In practical applications, the second fixing member 25 not only enhances the overall stability of the bottom bracket 23 but also effectively prevents the battery pack 21 from vibrating and shifting during driving. When it is necessary to fix two adjacent bottom brackets 23, the second fixing member 25 passes through the second fixing hole of the adjacent bottom bracket 23 to form a transverse rigid connection structure, so that multiple bottom brackets 23 constitute an integral load-bearing platform. This platform and the vertical plate 32 of the support frame 3 achieve vertical force cooperation through the second fixing member 25, thereby maintaining the low height of the overall structure while reducing local stress concentration through multi-point distributed support.

[0052] It should be noted that the bottom bracket 23 can also be equipped with a buffer structure, such as adding an elastic pad layer on the contact surface between the bottom bracket 23 and the battery pack 21 to further absorb vibration and reduce the impact on the battery pack 21 and the vehicle body 1.

[0053] See Figure 5 and Figure 6 The battery pack 21 includes a housing 215 and a plurality of battery cells 211. The housing 215 includes a main body 2151 and an assembly part 2152. An installation space 2153 is formed inside the main body 2151. The plurality of battery cells 211 are arranged sequentially in the installation space 2153. The assembly part 2152 is located at the end of the main body 2151 away from the vehicle body 1. The assembly part 2152 has an electrical compartment 2154. The electrical compartment 2154 is connected to the installation space 2153. The electrical compartment 2154 is used to place electrical components.

[0054] In practical applications, the main body 2151 refers to the main frame structure of the battery pack 21, which has an internal cavity (installation space 2153) to accommodate the battery cells 211. The assembly part 2152 can be an extension structure integrally formed with the main body 2151, forming an electrical compartment 2154 independent of the installation space 2153. The electrical compartment 2154 is used to install electrical components. This design physically isolates the electrical component installation area from the battery cell 211 installation area, preventing electrical connection components from squeezing the battery cells 211 and causing safety hazards.

[0055] Furthermore, the mounting space 2153 is located at a lower position, meaning it is closer to the vehicle body 1, which lowers the overall center of gravity of the battery pack 21 and enhances vehicle stability. Specifically, cylindrical or square battery cells 211 are arranged sequentially along the length of the mounting space 2153 within the main body 2151. The assembly part 2152 extends outward to form a boss structure, and its internal electrical compartment 2154 can adopt a layered layout, for example, the upper layer houses the control circuit board, and the lower layer houses the high-voltage wiring terminals. A through-hole is provided between the electrical compartment 2154 and the main body 2151, allowing the wiring harness to pass vertically downward into the battery cells 211. The battery cells 211 are connected to the electrical components within the electrical compartment 2154 via wires to achieve power transmission. This structure allows the battery cells 211 to be concentrated in the lower area near the vehicle frame, while the electrical components utilize the unoccupied space in the upper part of the vehicle body 1, thus lowering the overall center of gravity of the battery pack 21.

[0056] It should be noted that the assembly part 2152 can also be a separate structure from the main body part 2151. For example, the assembly part 2152 can be designed as a detachable module and connected to the main body part 2151 by bolts, which facilitates the maintenance and replacement of electrical components inside the electrical compartment 2154.

[0057] See Figure 7 The battery pack 21 includes a first reinforcing rib 216 and a second reinforcing rib 217. Both the first reinforcing rib 216 and the second reinforcing rib 217 are disposed in the installation space 2153. Along the length direction of the battery pack 21, the first reinforcing rib 216 spans the installation space 2153 and its opposite ends are respectively connected to the outer shell 215. Along the height direction of the battery pack 21, the second reinforcing rib 217 spans the installation space 2153 and its opposite ends are respectively connected to the outer shell 215.

[0058] In practical applications, the first reinforcing rib 216 refers to a support structure extending along the length of the battery pack 21, and the second reinforcing rib 217 refers to a support structure extending along the height of the battery pack 21. The first reinforcing rib 216 and the second reinforcing rib 217 form a cross-support structure, effectively distributing the weight of the battery cell 211 and improving the overall vibration resistance of the battery pack 21. The first reinforcing rib 216 spans the installation space 2153 along the length of the battery pack 21, and its two ends are rigidly connected to the side wall of the outer shell 215. When the vehicle accelerates or brakes, the first reinforcing rib 216 absorbs longitudinal impact energy, preventing longitudinal bending deformation of the outer shell 215. The second reinforcing rib 217 spans the installation space 2153 along the height of the battery pack 21, and its upper and lower ends are welded to the top and bottom walls of the outer shell 215 to form an integral structure. When the vehicle passes over bumpy roads, the second reinforcing rib 217 can effectively suppress compressive deformation in the height direction of the outer shell 215. Two types of reinforcing ribs form an orthogonal grid structure within the installation space 2153, enabling the outer casing 215 to form a three-dimensional support frame in three dimensions. When the battery cell 211 is subjected to multi-directional impacts, this frame disperses the load through spatial force transmission, maintaining the geometric stability of the installation space 2153.

[0059] See again Figure 7 The vehicle body 1 includes a crossbeam 11 and a longitudinal beam 12, which are arranged intersectingly. Along the thickness direction of the battery pack 21, multiple crossbeams 11 are sequentially and spaced apart on the longitudinal beams 12. At least one crossbeam 11 is connected to the bottom bracket 23, and at least one crossbeam 11 is connected to the support frame 3.

[0060] In practical applications, the crossbeams 11 and longitudinal beams 12 are arranged in a cross-shaped frame structure to form the basic support system of the vehicle body 1. The crossbeams 11 are arranged at intervals along the thickness direction of the battery pack 21 in order to make a lateral support layout according to the installation position of the battery pack 21 on the vehicle body 1. Specifically, the battery pack 21 and the crossbeams 11 can be arranged in a one-to-one correspondence, and a distributed load-bearing plane is formed by multiple crossbeams 11.

[0061] The bottom bracket 23 and the crossbeam 11 are connected to directly connect the bottom load-bearing component of the energy storage system 2 to the lateral support structure of the vehicle body 1, forming a vertical load transfer path. The support frame 3 and the crossbeam 11 are connected to fix the lateral constraint structure of the energy storage system 2 to the lateral support structure of the vehicle body 1, thereby fixing the energy storage system 2 and the vehicle body 1.

[0062] See again Figure 7The vehicle body 1 includes a first reinforcing beam 13 and a second reinforcing beam 14. Along the extension direction of the crossbeam 11, a plurality of longitudinal beams 12 are arranged at intervals in sequence. The first reinforcing beam 13 connects two adjacent longitudinal beams 12, and the first reinforcing beam 13 is connected to the crossbeam 11. One end of the second reinforcing beam 14 is connected to the outermost longitudinal beam 12 among the plurality of longitudinal beams 12, and the other end extends obliquely toward the crossbeam 11 and is connected to the crossbeam 11.

[0063] In practical applications, the first reinforcing beam 13 and the second reinforcing beam 14 constitute the reinforced structure of the vehicle body 1's frame. The first reinforcing beam 13 enhances the connection stability between the longitudinal beams 12, while the second reinforcing beam 14 provides diagonal support, optimizes the force transmission path, improves overall torsional resistance, and ensures that the vehicle body 1 maintains structural rigidity under various working conditions. The first reinforcing beam 13 forms lateral support between adjacent longitudinal beams 12 and, after connecting with the crossbeam 11, forms a mesh structure, which can disperse the vertical load transmitted by the battery system and reduce local stress concentration. The second reinforcing beam 14 connects the outermost longitudinal beam 12 and the crossbeam 11 in an inclined extension manner, forming a triangular stable structure. This not only strengthens the torsional resistance of the frame edges but also converts part of the longitudinal load into lateral support force through the inclined angle, preventing bending deformation of the longitudinal beam 12 due to unilateral stress. The combined design of these two elements improves the load-bearing stability of the vehicle body 1 for the high center of gravity battery system and optimizes the structural weight distribution, thereby lowering the overall center of gravity of the vehicle.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0066] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A vehicle, characterized in that, include: Vehicle body; An energy storage system includes multiple battery packs connected sequentially along its thickness direction; A support frame connects the vehicle body and the energy storage system, and the support frame clamps the energy storage system along the thickness direction of the battery pack.

2. The vehicle according to claim 1, characterized in that, The battery pack includes two main sides arranged opposite each other, the area of ​​which is larger than the area of ​​any other side of the battery pack. The main sides of two adjacent battery packs are attached to each other. In the energy storage system, the main sides located at opposite ends of the energy storage system are connected to the support frame.

3. The vehicle according to claim 2, characterized in that, The support frame includes a horizontal plate and a vertical plate, which are connected at an angle. One side of the vertical plate is attached to and connected to the main side, and the other side is connected to the horizontal plate. The horizontal plate is connected to the vehicle body.

4. The vehicle according to claim 3, characterized in that, The support frame includes multiple reinforcing plates, one end of which is connected to the vertical plate and the other end of which is connected to the horizontal plate.

5. The vehicle according to claim 1, characterized in that, The energy storage system includes a protective bracket, which is connected to opposite ends of the battery pack along the length of the battery pack. Along the height direction of the battery pack, the protective bracket has a plurality of first fixing holes and a plurality of operating holes. The operating holes are used to communicate with the outside. The plurality of operating holes and the plurality of first fixing holes correspond one-to-one and are connected. The energy storage system includes a first fixing member, which passes through the first fixing holes on two adjacent protective supports in sequence to fix the two adjacent protective supports; and / or, the first fixing member passes through the first fixing holes and connects to the support frame to fix the support frame and the protective supports.

6. The vehicle according to claim 5, characterized in that, The energy storage system includes a bottom bracket that connects the vehicle body and the battery pack along the height direction of the battery pack. The bottom bracket has a second fixing hole, and the energy storage system includes a second fixing member. The second fixing member passes through the second fixing holes on two adjacent bottom brackets in sequence to fix the two adjacent bottom brackets, and / or the second fixing member passes through the second fixing hole and connects to the support frame to fix the support frame and the bottom bracket.

7. The vehicle according to claim 1, characterized in that, The battery pack includes a casing and multiple battery cells. The casing includes a main body and an assembly part. An installation space is formed inside the main body. The multiple battery cells are sequentially arranged in the installation space. The assembly part is located at the end of the main body away from the vehicle body. The assembly part has an electrical compartment that communicates with the installation space. The electrical compartment is used to place electrical components.

8. The vehicle according to claim 7, characterized in that, The battery pack includes a first reinforcing rib and a second reinforcing rib, both of which are disposed within the mounting space. Along the length of the battery pack, the first reinforcing rib spans the mounting space and its opposite ends are respectively connected to the outer shell. Along the height of the battery pack, the second reinforcing rib spans the mounting space and its opposite ends are respectively connected to the outer shell.

9. The vehicle according to claim 6, characterized in that, The vehicle body includes crossbeams and longitudinal beams, which are arranged intersectingly. Along the thickness direction of the battery pack, a plurality of crossbeams are sequentially and spaced apart from the longitudinal beams. At least one crossbeam is connected to the bottom bracket, and at least one crossbeam is connected to the support frame.

10. The vehicle according to claim 9, characterized in that, The vehicle body includes a first reinforcing beam and a second reinforcing beam. Along the extension direction of the crossbeam, a plurality of longitudinal beams are arranged at intervals. The first reinforcing beam connects two adjacent longitudinal beams and the first reinforcing beam is connected to the crossbeam. One end of the second reinforcing beam is connected to the outermost longitudinal beam among the plurality of longitudinal beams, and the other end extends obliquely toward the crossbeam and is connected to the crossbeam.

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