Vehicle

Abstract

The vehicle 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] The present invention relates to the technical field of new energy vehicles, and particularly to a vehicle. Background Art

[0002] In recent years, with the rapid development of new energy vehicle technology and the increasingly strict global environmental protection regulations, the electrification process of commercial vehicles has been accelerating continuously. Especially in the field of heavy-duty tractors, due to their characteristics of heavy load, long driving distance, and high energy consumption, extremely high requirements are put forward for the power and endurance mileage of the battery system. To meet the endurance requirements of long-distance transportation of heavy commercial vehicles, the total power of the battery system often needs to reach hundreds of kilowatt-hours (kWh) or even higher.

[0003] In the prior art, the battery system of a heavy-duty tractor usually adopts a method of stacking multiple single battery packs, that is, individual battery packs are stacked layer by layer on the vehicle frame through a frame-type steel structure. With the increasing requirements for the vehicle's endurance mileage in the market, if the existing battery pack stacking method continues to be used, the overall height of the battery system will further increase, reaching about 2.0 meters or even higher. This height far exceeds the reasonable center-of-gravity range, resulting in a serious elevation of the vehicle's center of gravity and greatly affecting the driving stability and safety performance of the vehicle. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a vehicle that can reduce the overall height and weight of the energy storage system and improve the energy efficiency ratio of the vehicle.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A vehicle includes a vehicle body, an energy storage system, and a support frame. The energy storage system includes a plurality of battery packs, and the plurality of battery packs are sequentially connected along their thickness directions; the support frame is respectively connected to 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.

[0007] As one of the implementation manners, the battery pack includes two main sides disposed opposite to each other, the area of the main side is larger than the area of any other side of the battery pack, the main sides of adjacent two battery packs are mutually attached, and in the energy storage system, the support frames are connected to the main sides located at opposite ends of the energy storage system.

[0008] As one of the implementation manners, the support frame includes a horizontal plate and a vertical plate, the horizontal plate and the vertical plate 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, and the horizontal plate is connected to the vehicle body.

[0009] As one of the implementation manners, the support frame includes a plurality of reinforcing plates, one ends of the plurality of reinforcing plates are connected to the vertical plate, and the other ends are connected to the horizontal plate.

[0010] As one of the implementation manners, the energy storage system includes a protective bracket. Along the length direction of the battery pack, the opposite two ends of the battery pack are connected with the protective bracket.

[0011] Along the height direction of the battery pack, the protective bracket is provided with a plurality of first fixing holes, and the protective bracket is provided with a plurality of operation holes for communicating with the outside. The plurality of operation holes and the plurality of first fixing holes correspond to and communicate with each other one by one. The energy storage system includes a first fixing member which sequentially passes through the first fixing holes on two adjacent protective brackets to fix the two adjacent protective brackets; and / or, the first fixing member passes through the first fixing hole and is connected with the support frame to fix the support frame and the protective bracket.

[0012] As one of the implementation manners, the energy storage system includes a bottom bracket. Along the height direction of the battery pack, the bottom bracket is connected between the vehicle body and the battery pack.

[0013] The bottom bracket is provided with second fixing holes. The energy storage system includes a second fixing member which sequentially passes through the second fixing holes on two adjacent bottom brackets to fix the two adjacent bottom brackets, and / or, the second fixing member passes through the second fixing hole and is connected with the support frame to fix the support frame and the bottom bracket.

[0014] As one of the implementation manners, the battery pack includes a housing and a plurality of battery cells. The housing includes a main body portion and an assembly portion. An installation space is formed inside the main body portion. The plurality of battery cells are sequentially arranged in the installation space. The assembly portion is arranged at one end of the main body portion away from the vehicle body. The assembly portion is provided with an electrical compartment which is communicated with the installation space and is used for placing electrical components.

[0015] As one of the implementation manners, the battery pack includes a first reinforcing rib and a second reinforcing rib. Both the first reinforcing rib and the second reinforcing rib are arranged in the installation space. Along the length direction of the battery pack, the first reinforcing rib spans across the installation space and its opposite two ends are respectively connected with the housing. Along the height direction of the battery pack, the second reinforcing rib spans across the installation space and its opposite two ends are respectively connected with the housing.

[0016] As one of the implementation manners, the vehicle body includes cross beams and longitudinal beams, the cross beams and the longitudinal beams are arranged crosswise, along the thickness direction of the battery pack, a plurality of the cross beams are sequentially and spacedly connected to the longitudinal beams, at least one of the cross beams is connected to the bottom bracket, and at least one of the cross beams is connected to the support frame.

[0017] As one of the implementation manners, the vehicle body includes a first reinforcing beam and a second reinforcing beam. Along the extending direction of the cross beam, a plurality of the longitudinal beams are sequentially and spacedly arranged, a first reinforcing beam is connected between two adjacent longitudinal beams, and the first reinforcing beam is connected to the cross beam. 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 towards the direction close to the cross beam and is connected to the cross beam.

[0018] The beneficial effect of the present invention is as follows: The present application provides a vehicle, including a vehicle body, an energy storage system and a support frame. The energy storage system includes a plurality of battery packs, and the plurality of battery packs are sequentially connected along their thickness directions; the support frame is respectively connected to 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. Compared with the prior art, in this solution, by canceling the intermediate frame structure, using the gapless superposition of a plurality of battery packs, and the design that the support frame clamps the energy storage system along the thickness direction, while ensuring the stable connection of the energy storage system, the problem of the height accumulation of the traditional frame-type steel structure is avoided. The clamping support in the thickness direction can form a lateral binding force to prevent the battery pack from generating displacement due to vibration during vehicle driving; the double-connection structure between the vehicle body and the energy storage system not only ensures the fixing reliability of the battery system, but also disperses the load through the force transmission path in the thickness direction, further reducing the influence of the structural height on the center of gravity. At the same time, the support frame only acts on both ends of the energy storage system, and the support frame realizes the fixed connection between the energy storage system and the vehicle body, eliminating the redundancy of the interlayer structure and maintaining the overall stability, and significantly reducing the vertical height of the energy storage system under the same capacitance requirement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. shows a schematic structural diagram of a vehicle of the present invention;

[0020] Figure 2 FIG. shows a schematic structural diagram of an energy storage system of the present invention;

[0021] Figure 3 FIG. shows a schematic structural diagram of a battery pack of the present invention;

[0022] Figure 4 FIG. shows a side view of an energy storage system of the present invention;

[0023] Figure 5 FIG. shows a cross-sectional view of an energy storage system of the present invention;

[0024] Figure 6 The figure shows an exploded structural schematic diagram of parts of an energy storage system according to the present invention;

[0025] Figure 7 The figure shows an internal structural schematic diagram of an energy storage system according to the present invention;

[0026] Reference numerals: 1, vehicle body; 11, cross beam; 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 shell; 2151, main body part; 2152, assembly part; 2153, installation space; 2154, electrical compartment; 216, first reinforcing rib; 217, second reinforcing rib; 22, protective bracket; 221, operation hole; 222, first fixing hole; 23, bottom bracket; 24, first fixing member; 25, second fixing member;

[0028] 3, support frame; 31, horizontal plate; 32, vertical plate; 33, reinforcing plate. Detailed implementation manners

[0029] In the present invention, the terms "arranged", "provided with", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0031] In order to make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Refer to Figure 1, an embodiment of the present 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 a plurality of battery packs 21, and the plurality of battery packs 21 are sequentially connected along their thickness directions; the support frame 3 is respectively connected to the vehicle body 1 and the energy storage system 2, and the support frame 3 clamps the energy storage system 2 along the thickness direction of the battery pack 21.

[0033] Among them, the thickness direction refers to the extension direction of the thinnest dimension of the battery pack 21. For specific reference, Figure 1 , Figure 1 in which 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, after the plurality of battery packs 21 are arranged in sequence along the thickness direction, a flattened energy storage system 2 is formed. On the one hand, the number of battery packs 21 can be increased to achieve a battery capacity that meets the requirements of commercial vehicles. On the other hand, the interlayer frame is eliminated, and the battery packs 21 are directly attached to each other, reducing the overall size. The support frame 3 applies a clamping force on both sides of the battery pack 21 in the thickness direction. The vehicle body 1 and the support frame 3 form a main load-bearing structure, and the inertial force received by 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 with the prior art, this solution cancels the intermediate frame structure, uses the gapless stacking of a plurality of battery packs 21, and the design that the support frame 3 clamps the energy storage system 2 along the thickness direction. While ensuring the stable connection of the energy storage system 2, it avoids the problem of the height accumulation of traditional frame-type steel structures. Through the clamping support in the thickness direction, an effective lateral binding force can be formed, thereby preventing the battery pack 21 from displacing due to vibration during vehicle driving; the double-connection structure between the vehicle body 1 and the energy storage system 2 not only ensures the fixing reliability of the battery system, but also disperses the load through the force transmission path in the thickness direction, further reducing the influence of the 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, and the support frame 3 realizes the fixed connection between the energy storage system 2 and the vehicle body 1, eliminating the redundancy of the interlayer structure and maintaining the overall stability, and significantly reducing the vertical height of the energy storage system 2 under the same capacitance requirement.

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

[0037] In practical applications, the main side surface 212 is the planar region with the largest contact area in the structure of the battery pack 21. Taking a rectangular or approximately rectangular battery pack as an example, this region is perpendicular to the thickness direction of the battery pack. The main side surfaces of adjacent battery packs are mutually attached to ensure tight connection through large-area contact when stacked in the thickness direction, thus forming a stable overall structure. And 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, and the support frame 3 is connected to the main side surface 212 of the battery pack 21. This design enables the support frame 3 to be directly borne on the largest stress-bearing 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 the support failure problem caused by local stress concentration.

[0038] Refer again to 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 surface 212 and connected to the main side surface 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 a support frame 3 with an L-shaped cross-section. The vertical plate 32 is attached and fixed to the largest area region of the main side surface 212 along the thickness direction of the battery pack 21, evenly distributing the support load through the contact surface to avoid the deformation risk caused by local stress concentration. After the horizontal plate 31 is connected to the vehicle body 1, a direct force transmission path from the side surface of the battery pack 21 to the vehicle body 1 is formed, and the structural self-locking effect generated by the angled connection is utilized to suppress the lateral displacement of the battery pack 21 during vehicle driving. The connection point of the vertical plate 32 and the horizontal plate 31 is mainly located at the edge of the main side surface 212 close to the vehicle body 1, reducing the lifting range of the overall center of gravity of the vehicle by lowering the height of the support frame 3 itself.

[0040] It should be noted that a non-parallel included angle is formed between the horizontal plate 31 and the vertical plate 32. Specifically, a welding process or one-piece bending forming can be adopted to form a triangular stable structure to enhance the bending stiffness.

[0041] Refer again to Figure 2 , the support frame 3 includes a plurality of reinforcing plates 33. One ends of the plurality of reinforcing plates 33 are connected to the vertical plate 32, and the other ends are connected to the horizontal plate 31.

[0042] In actual applications, multiple reinforcing plates 33 are arranged in sequence along the extension direction of the vertical plate 32. The reinforcing plates 33 can be arranged between the right-angle 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. When the energy storage system 2 is impacted, the reinforcing plate 33 decomposes the load into a horizontal component and a vertical component through its 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 dispersed to different connection points of the vehicle body 1, thereby avoiding overload deformation of a single connection point.

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

[0044] See also Figure 3 and Figure 4 Along the height direction of the battery pack 21, the protective bracket 22 is provided with a plurality of first fixing holes 222, and the protective bracket 22 is provided with a plurality of operating holes 221, and the operating holes 221 are used to connect to the outside, and the plurality of operating holes 221 correspond to and connect with the plurality of first fixing holes 222 one by one; the energy storage system 2 includes a first fixing member 24, and the first fixing member 24 is sequentially passed through the first fixing holes 222 on two adjacent protective brackets 22 to fix the two adjacent protective brackets 22; and / or, the first fixing member 24 is passed through the first fixing hole 222 and connected to the support frame 3 to fix the support frame 3 and the protective bracket 22.

[0045] In actual applications, the protective bracket 22 not only plays a role in protecting the battery pack 21, but also plays a fixing role. Specifically, the first fixing holes 222 are arranged at intervals in the height direction of the protective bracket 22, and each first fixing hole 222 is equipped with a corresponding operating hole 221, so that external tools can easily install or remove the first fixing member 24 through these operating holes 221. If two adjacent battery packs 21 need to be connected, it is only necessary to insert the first fixing member 24 from one operating hole 221, and pass it through the corresponding first fixing holes 222 on the two adjacent protective brackets 22 in turn, and finally lock it with a nut on the other side to achieve series fixation between the battery packs 21. At the same time, the design of the operating hole 221 facilitates maintenance personnel to quickly disassemble and replace the battery pack 21, thereby improving the maintainability of the system.

[0046] Moreover, the first fixing member 24 has a dual connection function: one is to penetrate the first fixing holes 222 of adjacent protection brackets 22 to form a series connection and fixation between battery packs 21, preventing lateral displacement; the other is to connect the support frame 3 and the protection bracket 22 to fix the energy storage system 2 to the support frame 3, and further fix the energy storage system 2 and the vehicle body 1. When it is necessary to connect the energy storage system 2 as a whole to the support frame 3, the first fixing member 24 can penetrate the first fixing holes 222 of the protection bracket 22 and the connection holes of the support frame 3 at the same time to achieve the fixed connection between the energy storage system 2 and the support frame 3.

[0047] Through the above technical solution, the present application reduces the height of the battery system while achieving multi-dimensional rigid connection to ensure structural stability; the cooperative design of the operation holes 221 and the fixing holes enables only partial disassembly of the first fixing member 24 during maintenance, significantly shortening the maintenance time and reducing the operation complexity, and solving the dual problems of potential safety hazards and maintenance difficulties caused by the high center of gravity.

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

[0049] Refer again to Figure 3 and Figure 4 , the energy storage system 2 includes a bottom bracket 23, and along the height direction of the battery pack 21, the bottom bracket 23 is connected between the vehicle body 1 and the battery pack 21. Among them, the bottom bracket 23 is a load-bearing member provided between the battery pack 21 and the vehicle body 1, and its main function is to evenly disperse and transfer the load borne by the battery pack 21 to the vehicle body 1 frame.

[0050] Refer again to Figure 3 and Figure 4 , the bottom bracket 23 is provided with second fixing holes, the energy storage system 2 includes a second fixing member 25, and the second fixing member 25 sequentially passes through the second fixing holes on two adjacent bottom brackets 23 to fix the two adjacent bottom brackets 23, and / or the second fixing member 25 passes through the second fixing holes and is connected 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 penetrates the second fixing holes of the adjacent bottom brackets 23 to form a transverse rigid connection structure, so that multiple bottom brackets 23 form an integral load-bearing platform. This platform and the vertical plate 32 of the support frame 3 achieve coordinated force in the vertical direction through the second fixing member 25, thereby while maintaining the low height of the overall structure, reducing local stress concentration through multi-point distributed support.

[0052] It should be noted that the bottom bracket 23 can also be provided with a buffer structure. For example, an elastic cushion layer is added to 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] Refer to 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 portion 2151 and an assembly portion 2152. An installation space 2153 is formed inside the main body portion 2151. The plurality of battery cells 211 are sequentially arranged in the installation space 2153. The assembly portion 2152 is arranged at one end of the main body portion 2151 away from the vehicle body 1. An electrical compartment 2154 is opened in the assembly portion 2152. The electrical compartment 2154 is communicated with the installation space 2153. The electrical compartment 2154 is used to place electrical components.

[0054] In practical applications, the main body portion 2151 refers to the main frame structure of the battery pack 21, and a cavity (installation space 2153) is formed inside it to accommodate the battery cells 211. The assembly portion 2152 can be an extended structure integrally formed with the main body portion 2151. The assembly portion 2152 forms 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, avoiding potential safety hazards caused by electrical connection components squeezing the battery cells 211.

[0055] Moreover, the installation space 2153 is located at a lower position, that is, the installation space 2153 is closer to the vehicle body 1, reducing the overall center of gravity of the battery pack 21 and enhancing the driving stability of the vehicle. Specifically, cylindrical or square battery cells 211 are arranged in sequence along the length direction within the installation space 2153 of the main body portion 2151. The assembly portion 2152 forms a boss structure by extending outward, and its internal electrical compartment 2154 can adopt a layered layout. For example, the control circuit board is arranged on the upper layer, and the high-voltage terminal is arranged on the lower layer. A through-hole channel is provided between the electrical compartment 2154 and the main body portion 2151, allowing the wire harness to vertically penetrate downward into the battery cells 211. The battery cells 211 are connected to the electrical components in the electrical compartment 2154 through wires to achieve power transmission. This structure enables the battery cells 211 to be concentratedly arranged in the bottom area close to the vehicle frame, while the electrical components utilize the unoccupied space in the upper part of the vehicle body 1, overall reducing the center of gravity height of the battery pack 21.

[0056] It should be noted that the assembly portion 2152 and the main body portion 2151 can also adopt a split structure. For example, the assembly portion 2152 is designed as a detachable module and connected to the main body portion 2151 through bolts, facilitating the maintenance and replacement of the electrical components inside the electrical compartment 2154.

[0057] Refer to 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 arranged within the installation space 2153. Along the length direction of the battery pack 21, the first reinforcing rib 216 spans across 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 across 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 direction of the battery pack 21, and the second reinforcing rib 217 refers to a support structure extending along the height direction of the battery pack 21. The first reinforcing rib 216 and the second reinforcing rib 217 form a cross-support structure, which effectively disperses the weight of the battery cell 211 and improves the overall vibration resistance of the battery pack 21. The first reinforcing rib 216 spans across the installation space 2153 along the length direction of the battery pack 21, and its two ends are rigidly connected to the side wall of the housing 215. When the vehicle accelerates or brakes, the first reinforcing rib 216 absorbs the longitudinal impact energy and prevents the housing 215 from undergoing longitudinal bending deformation. The second reinforcing rib 217 spans across the installation space 2153 along the height direction of the battery pack 21, and its upper and lower ends are integrally formed with the top and bottom walls of the housing 215 by welding. When the vehicle passes over a bumpy road surface, the second reinforcing rib 217 can effectively inhibit the compressive deformation of the housing 215 in the height direction. The two types of reinforcing ribs form an orthogonal grid structure within the installation space 2153, enabling the housing 215 to form a three-dimensional support framework in three dimensions. When the battery cell 211 is subjected to multi-directional impacts, this framework disperses the load through spatial force conduction and maintains the geometric stability of the installation space 2153.

[0059] Refer again to Figure 7 , the vehicle body 1 includes cross beams 11 and longitudinal beams 12. The cross beams 11 and the longitudinal beams 12 are arranged crosswise. Along the thickness direction of the battery pack 21, a plurality of cross beams 11 are sequentially and spacedly connected to the longitudinal beams 12, and at least one cross beam 11 is connected to the bottom bracket 23, and at least one cross beam 11 is connected to the support frame 3.

[0060] In practical applications, the crosswise arrangement of the cross beams 11 and the longitudinal beams 12 means that a basic support system of the vehicle body 1 is formed through a crisscross frame structure. The cross beams 11 are arranged at intervals along the thickness direction of the battery pack 21 in order to perform a lateral support layout according to the installation position of the battery pack 21 on the vehicle body 1. Specifically, a one-to-one arrangement of the battery pack 21 and the cross beams 11 can be adopted, and a distributed load-bearing plane is formed by a plurality of cross beams 11.

[0061] Among them, the connection between the bottom bracket 23 and the cross beam 11 is to directly join the bottom load-bearing components of the energy storage system 2 with the lateral support structure of the vehicle body 1 to form a load transfer path in the vertical direction. The connection between the support frame 3 and the cross beam 11 is to fix the lateral constraint structure of the energy storage system 2 with the lateral support structure of the vehicle body 1, thereby fixing the energy storage system 2 and the vehicle body 1.

[0062] Refer again to Figure 7, the vehicle body 1 includes a first reinforcing beam 13 and a second reinforcing beam 14. Along the extending direction of the cross beam 11, a plurality of longitudinal beams 12 are arranged at intervals in sequence. A first reinforcing beam 13 is connected between two adjacent longitudinal beams 12, and the first reinforcing beam 13 is connected to the cross beam 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 towards the direction close to the cross beam 11 and is connected to the cross beam 11.

[0063] In practical applications, the first reinforcing beam 13 and the second reinforcing beam 14 form a strengthened structure of the vehicle body 1 framework. The first reinforcing beam 13 enhances the connection stability between the longitudinal beams 12. The second reinforcing beam 14 provides an oblique support, optimizes the force transmission path, improves the overall torsional resistance performance, and ensures that the vehicle body 1 maintains structural rigidity under various working conditions. The first reinforcing beam 13 forms a lateral support between adjacent longitudinal beams 12 and forms a network structure after being connected to the cross beam 11, which can disperse the vertical load transmitted by the battery system and reduce local stress concentration. The second reinforcing beam 14 is connected to the outermost longitudinal beam 12 and the cross beam 11 in an obliquely extending manner to form a triangular stable structure, which not only strengthens the torsional resistance performance at the edge of the vehicle frame but also converts part of the longitudinal load into a lateral support force through the inclination angle to avoid the bending deformation of the longitudinal beam 12 caused by unilateral force. The combined design of the two not only improves the bearing stability of the vehicle body 1 for the high center-of-gravity battery system but also optimizes the structural weight distribution, thereby reducing the overall center of gravity of the vehicle.

[0064] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0065] Moreover, in addition to being able to represent an orientation or position relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0066] The above description is only a specific implementation manner of the present application. It should be noted that for those of ordinary skill in the technical field, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A vehicle, characterized in that, Comprising: Vehicle body; Energy storage system, including a plurality of battery packs, and the plurality of battery packs are sequentially connected along their thickness directions; Support frames, respectively connecting the vehicle body and the energy storage system, and the support frames clamp the energy storage system along the thickness direction of the battery packs.

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

3. The vehicle according to claim 2, wherein Each support frame includes a cross plate and a vertical plate, the cross plate and the vertical plate 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 cross plate, and the cross plate is connected to the vehicle body.

4. The vehicle according to claim 3, characterized in that, Each support frame includes a plurality of reinforcing plates, one ends of the plurality of reinforcing plates are connected to the vertical plate, and the other ends are connected to the cross plate.

5. The vehicle according to claim 1, characterized in that, The energy storage system includes a protective bracket, and along the length direction of the battery packs, the opposite ends of the battery packs are connected with the protective bracket; Along the height direction of the battery packs, the protective bracket is provided with a plurality of first fixing holes, the protective bracket is provided with a plurality of operation holes, the operation holes are used for communicating with the outside, and the plurality of operation holes and the plurality of first fixing holes correspond to and communicate with each other one by one; The energy storage system includes a first fixing member, the first fixing member sequentially passes through the first fixing holes on adjacent two protective brackets to fix the adjacent two protective brackets; and / or, the first fixing member passes through the first fixing hole and is connected with the support frame to fix the support frame and the protective bracket.

6. The vehicle according to claim 5, wherein The energy storage system includes a bottom bracket, and along the height direction of the battery packs, the bottom bracket is connected between the vehicle body and the battery packs; The bottom bracket is provided with second fixing holes, the energy storage system includes a second fixing member, the second fixing member sequentially passes through the second fixing holes on adjacent two bottom brackets to fix the adjacent two bottom brackets, and / or, the second fixing member passes through the second fixing hole and is connected with the support frame to fix the support frame and the bottom bracket.

7. The vehicle according to claim 1, characterized in that, Each battery pack includes a housing and a plurality of battery cells, the housing includes a main body portion and an assembly portion, an installation space is formed inside the main body portion, the plurality of battery cells are sequentially arranged in the installation space, the assembly portion is arranged at one end of the main body portion away from the vehicle body, the assembly portion is provided with an electrical compartment, the electrical compartment is communicated with the installation space, and the electrical compartment is used for placing electrical components.

8. The vehicle according to claim 7, characterized in that, Each battery pack includes a first reinforcing rib and a second reinforcing rib, both the first reinforcing rib and the second reinforcing rib are arranged in the installation space, along the length direction of the battery pack, the first reinforcing rib spans across the installation space and its opposite ends are respectively connected with the housing, and along the height direction of the battery pack, the second reinforcing rib spans across the installation space and its opposite ends are respectively connected with the housing.

9. The vehicle according to claim 6, wherein, The vehicle body includes cross beams and longitudinal beams, the cross beams and the longitudinal beams are arranged crosswise, along the thickness direction of the battery pack, a plurality of the cross beams are sequentially and spacedly connected to the longitudinal beams, at least one of the cross beams is connected to the bottom bracket, and at least one of the cross beams 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 extending direction of the cross beam, a plurality of the longitudinal beams are sequentially and spacedly arranged, the first reinforcing beam is connected between two adjacent longitudinal beams, and the first reinforcing beam is connected to the cross beam, 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 towards the direction close to the cross beam and is connected to the cross beam.

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