A battery case mounting structure

Abstract

This invention discloses a battery box mounting structure, relating to the field of battery box technology. It includes a box with multiple mounting seats fixedly mounted on it. Two damping springs (type 1) are fixedly mounted on the inner wall of each mounting seat. A connecting ring is fixedly mounted on one end of each damping spring (type 1), and a damping spring (type 2) is fixedly mounted on each connecting ring. A sliding ring is fixedly mounted between each pair of damping springs (type 2). The advantages are: this invention can adaptively adjust the support stiffness of the device on the box according to its own weight; simultaneously, it can adaptively adjust the elastic stiffness formed by the combination of damping springs (type 1 and type 2) according to the amplitude of vibration generated by vehicle movement, helping to fundamentally avoid the resonance risk between the vehicle and the box; and it can adaptively adjust the intensity and efficiency of the device's vibration energy consumption according to the vibration amplitude generated by vehicle movement, improving the device's shock absorption and buffering effect on the box.

Description

Technical Field

[0001] This invention relates to the field of battery enclosure technology, and more particularly to a battery enclosure mounting structure. Background Technology

[0002] With the explosive growth of the new energy vehicle industry, the performance and safety requirements of power batteries as core components continue to upgrade. As a core structural component that supports, fixes, and protects power batteries, the battery box has emerged. Furthermore, with the development of the new energy vehicle industry and the iteration of power battery technology, it has been rapidly optimized and upgraded in terms of material selection, structural design, and manufacturing process, and is gradually becoming a key support for ensuring the safe operation of new energy vehicles. Existing battery packs are typically mounted on the bottom of new energy vehicles using bolts, brackets, and suspension components. However, when a vehicle is in motion, vibrations of varying amplitudes and directions occur due to road bumps, acceleration, deceleration, turning, and lane changes, especially vertical vibrations. These vibrations can be directly transmitted to the battery pack interior through the fixed structure, accelerating the aging of the battery cells and even causing risks such as short circuits and thermal runaway. Therefore, some manufacturers add conventional spring buffer components to the mounting structure to improve the vibration resistance of the battery pack. However, such structures have significant shortcomings. For example, in terms of support stiffness, the weight difference of the battery pack can reach 20% to 40% between different vehicle models (e.g., a 60kWh battery pack weighs 50kg, while a 100kWh battery pack weighs approximately 80kg). Conventional buffer structures cannot adapt to these weight differences and are prone to resonance due to insufficient matching, weakening the shock absorption and protection effect on the battery pack. To address these issues, we propose a battery pack mounting structure. Summary of the Invention

[0003] The purpose of this invention is to solve the problems mentioned in the background art by proposing a battery box mounting structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A battery box mounting structure includes a box, on which a plurality of mounting seats are fixedly mounted. Two shock-absorbing springs are fixedly mounted on the inner wall of each mounting seat. A connecting ring is fixedly mounted on one end of each shock-absorbing spring, and a second shock-absorbing spring is fixedly mounted on each connecting ring. A sliding ring is fixedly mounted between each pair of shock-absorbing springs. Each sliding ring has a connecting cylinder fixedly installed at its lower end, and the connecting cylinders are all slidably installed on the corresponding mounting bases. Each connecting cylinder has a fixing plate fixedly installed at its lower end, and the fixing plates are all fixedly connected to the housing.

[0005] In the aforementioned battery box mounting structure, the pitch of the first shock-absorbing spring is smaller than the pitch of the corresponding second shock-absorbing spring.

[0006] In the above-mentioned battery box mounting structure, shock-absorbing pads are fixedly installed on the inner wall of the mounting base, and the shock-absorbing pads are all made of rubber material.

[0007] In the above-mentioned battery box mounting structure, the shock-absorbing pads are provided with uniformly distributed annular limiting grooves, and the sliding rings are fixedly installed with uniformly distributed annular sliders, and the sliders are slidably installed on the corresponding limiting grooves.

[0008] In the aforementioned battery box mounting structure, friction pads are fixedly installed on the inner wall of the mounting base in a ring-shaped and uniformly distributed manner, and the friction pads are all arc-shaped.

[0009] In the above-mentioned battery box mounting structure, each of the sliding rings has a uniformly distributed ring-shaped placement groove. Two compression springs are fixedly installed on each placement groove. A pressing plate is fixedly installed between each of the two compression springs, and the pressing plates are slidably installed on the corresponding placement grooves. A pressing component is installed between the pressing plates.

[0010] In the above-mentioned battery box mounting structure, the pressing component includes support frames that are fixedly mounted on the pressing plate, and each support frame is fixedly mounted with rollers.

[0011] In the above-mentioned battery box mounting structure, threaded holes are provided on the mounting base and through holes are provided on the fixing plate.

[0012] Compared with existing technologies, the advantages of this invention are: 1. In the process of installing the box body at the bottom of the car, the present invention, through the cooperation of the mounting base and shock-absorbing spring one and shock-absorbing spring two, can adaptively adjust the support stiffness of the device on the box body according to the weight of the box body. At the same time, when the car body generates vertical vibration, the elastic stiffness formed by the cooperation of shock-absorbing spring one and shock-absorbing spring two can be adaptively adjusted with the amplitude of the vibration generated by the car body, thereby avoiding the resonance risk between the car body and the box body from the root and helping to improve the static support and dynamic shock absorption effect of the device on the box body.

[0013] 2: After the housing is installed at the bottom of the car, when the car vibrates vertically while driving, the mounting base, friction plate, and rollers work together to continuously consume the vibration force generated by the car. At the same time, the friction plate, rollers, and compression springs work together to adaptively adjust the intensity and efficiency of the device's energy consumption based on the vibration amplitude generated by the car, which helps to further improve the shock absorption and buffering effect of the device on the housing. Attached Figure Description

[0014] Figure 1This is a schematic diagram of a battery box mounting structure proposed in this invention; Figure 2 for Figure 1 Exploded view of the middle box; Figure 3 for Figure 2 A schematic diagram of the components on the mounting base; Figure 4 for Figure 3 A front view of the mounting base and fixing plate after sectional view; Figure 5 for Figure 4 A three-dimensional schematic diagram; Figure 6 for Figure 5 A front view schematic diagram of the structure of the component connecting the middle damping spring one and the damping spring two; Figure 7 for Figure 6 Cross-sectional view of the sliding ring and damping pad; Figure 8 for Figure 5 A schematic diagram of the internal components of the mounting base; Figure 9 for Figure 8 A front view diagram after removing the connecting cylinder and fixing plate; Figure 10 for Figure 9 A schematic diagram of the structure of the extrusion component.

[0015] In the diagram: 1. Housing; 2. Mounting base; 3. Threaded hole; 4. Shock-absorbing spring one; 5. Connecting ring; 6. Shock-absorbing spring two; 7. Sliding ring; 8. Shock-absorbing pad; 9. Limiting groove; 10. Slider; 11. Connecting cylinder; 12. Fixing plate; 13. Friction plate; 14. Placement groove; 15. Compression spring; 16. Pressing plate; 17. Support frame; 18. Roller. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figures 1-10A battery box mounting structure includes a box 1, on which multiple mounting seats 2 are fixedly mounted. Two shock-absorbing springs 4 are fixedly mounted on the inner wall of each mounting seat 2. A connecting ring 5 is fixedly mounted on one end of each shock-absorbing spring 4. A second shock-absorbing spring 6 is fixedly mounted on each connecting ring 5. A sliding ring 7 is fixedly mounted between each of the two second shock-absorbing springs 6.

[0018] Reference Figures 1-6 Each sliding ring 7 has a connecting cylinder 11 fixedly installed at its lower end, and the connecting cylinder 11 is slidably installed through and on the corresponding mounting base 2. Each connecting cylinder 11 has a fixing plate 12 fixedly installed at its lower end, and the fixing plate 12 is fixedly connected to the housing 1. The pitch of the shock-absorbing spring 4 is smaller than the pitch of the corresponding shock-absorbing spring 6. Each mounting base 2 has a threaded hole 3, and each fixing plate 12 has a through hole (shown in the figure but not labeled). Figure 5 (This can be seen from the text).

[0019] The diameter of the through holes is equal to or greater than the diameter of the corresponding threaded holes 3. When the housing 1 needs to be installed on the bottom of an existing new energy vehicle, the housing 1 is first moved to fit against the bottom of the new energy vehicle using existing pushing equipment, so that the threaded holes 3 on the multiple mounting seats 2 correspond one-to-one with the mounting holes on the bottom of the new energy vehicle. At this time, through the through holes, it is convenient for operators or automated equipment to pass through the fixing plate 12 with conventional fixing mechanical parts such as bolts and insert them into the corresponding threaded holes 3 and mounting holes to fasten the mounting seats 2 to the bottom of the vehicle, thereby completing the fixed installation of the housing 1.

[0020] Meanwhile, multiple shock-absorbing springs 4 and 6 are made of high-elasticity, high-fatigue-resistance spring steel, such as 60Si2MnA spring steel. This material has high yield strength and elastic modulus, which can stably support the battery box 1, which weighs between 30 and 90 kg (existing battery boxes are mostly made of aluminum alloy or lightweight sheet metal, with a weight generally concentrated in the range of 30 to 90 kg, such as the aluminum alloy battery box of Tesla Model 3, which weighs about 29.5 kg, and some traditional sheet metal battery boxes, which can weigh up to 88 kg). At the same time, the excellent fatigue resistance can also adapt to the continuous vibration load during the operation of new energy vehicles, avoiding elastic decay or breakage after long-term use. In addition, in order to further improve the static support and dynamic shock absorption effect of shock-absorbing springs 4 and 6 in continuous cooperation for the box 1, the surfaces of shock-absorbing springs 4 and 6 can be galvanized or powder coated for corrosion protection, so as to adapt to the humid and dusty working environment under the car, and further improve their service life and long-term support and shock absorption effect.

[0021] Meanwhile, the spring pitch refers to the axial distance between the center lines of two adjacent effective spring coils on the spring (simply put, it is the height of the gap between the two coils of the spring). The size of the spring pitch directly determines the stiffness of the spring. The larger the pitch, the larger the gap between the spring coils, the easier it is to compress, and the smaller the stiffness (the softer). Conversely, the smaller the spring pitch, the smaller the gap. Under the same force, the spring is more difficult to compress and the stiffness is greater (the harder). Therefore, according to this principle, although multiple damping springs 1-4 and multiple damping springs 2-6 are made of the same material, the stiffness of damping springs 1-4 is greater than that of the corresponding damping springs 2-6 because the pitch of damping springs 1-4 is smaller than that of the corresponding damping springs 2-6.

[0022] When the housing 1 is installed on the bottom of an existing new energy vehicle using multiple mounting brackets 2 and conventional fixing mechanical parts such as bolts, the housing 1's own weight will cause the corresponding sliding ring 7 to compress the damping spring 6 at its lower end and move downwards through the cooperation of the fixing plate 12 and the connecting cylinder 11 (e.g., Figure 5 (As shown in the direction) If the weight of the housing 1 is small, the housing 1 will only compress the lower end of the damping spring 6 with a smaller stiffness through multiple sliding rings 7. The compression preload of the damping spring 6 can prevent the housing 1 from shaking or making abnormal noise. If the weight of the housing 1 is large, the housing 1 will first fully compress the lower end of the damping spring 6 to its limit through the sliding rings 7, and then further compress the corresponding damping spring 4 with a larger stiffness through the corresponding connecting rings 5. In this way, the effect of adaptively adjusting the support stiffness of the equipment on the housing 1 according to the weight of the housing 1 can be achieved, avoiding the limitations of the fixed stiffness of a conventional single spring. For example, the fixed stiffness of a single spring can only be adapted to the weight of the housing 1. When the weight of the housing 1 is small, the single spring is prone to "shaking and abnormal noise" due to insufficient preload. When the weight of the housing 1 is large, the housing 1 is prone to directly over-compress the spring, resulting in "accelerated fatigue and shortened lifespan" of the spring.

[0023] At the same time, when the car is moving and generates vertical vibrations, it causes multiple mounting seats 2 and shock absorber springs 1 and 2 to move up and down relative to the housing 1 (such as...). Figure 5(As shown in the direction) If the vertical vibration amplitude generated by the car is small, the mounting base 2 only needs to displace slightly to compress the damping spring 6 at the lower end of the corresponding sliding ring 7, which is sufficient to achieve basic vibration damping for the housing 1. However, if the vertical vibration amplitude generated by the car is large, and the mounting base 2 is subjected to a large displacement, the displacement of the mounting base 2 will further compress the damping spring 4 at the lower end of the corresponding sliding ring 7. Since the stiffness of the damping spring 4 is greater than that of the damping spring 6, the overall support stiffness of the equipment will increase synchronously with the vertical displacement amplitude of the mounting base 2, and the natural frequency of the equipment will also change dynamically. This design effectively avoids the risk of resonance between the vehicle and the housing 1, which could lead to amplified vibrations in the housing 1 and fatigue fracture of the internal battery cells / connecting pieces. Furthermore, the high-stiffness damping spring 4 can quickly buffer the impact energy of large-amplitude vibrations, preventing the impact load from being directly transmitted to the internal components of the housing 1. Compared to the traditional design contradiction of a single spring with fixed stiffness, which is prone to excessive deformation when soft and intense vibration when hard, this structure achieves effective damping and buffering under large vibration conditions while ensuring the structural stability of the housing 1. This helps improve the static support and dynamic damping effect of the equipment on the housing 1.

[0024] Furthermore, when the housing 1 is subjected to its own weight, or when the vehicle is moving and generates vertical vibrations, causing the mounting base 2 to move vertically up and down relative to the housing 1 (such as... Figure 5 (As shown in the direction), the mounting base 2 will also stretch the upper shock-absorbing spring 2 6 and shock-absorbing spring 1 4 through the corresponding sliding ring 7, so as to achieve the effect of simultaneously buffering the "downward compressive load of the car" and the "upward tensile load of the car". This allows the device to fully cover all working conditions of the car's up-and-down reciprocating vibration, making the shock-absorbing buffer range of the device more comprehensive and helping to further reduce the risk of fatigue damage to the housing 1 caused by continuous vibration.

[0025] Reference Figures 2-7 Each mounting base 2 has a shock-absorbing pad 8 fixedly installed on its inner wall. The shock-absorbing pads 8 are all made of rubber material.

[0026] Each shock-absorbing pad 8 has a ring-shaped, evenly distributed limiting groove 9, and each sliding ring 7 has a ring-shaped, evenly distributed slider 10 fixedly installed on it, and each slider 10 is slidably installed on the corresponding limiting groove 9.

[0027] When the car is moving and generates vertical vibrations, causing multiple mounting seats 2 to move vertically up and down relative to the housing 1, namely the fixed plate 12, connecting cylinder 11, and sliding ring 7 on the housing 1 (such as... Figure 6(As shown in the direction), the multiple limiting grooves 9 on the shock-absorbing pad 8 facilitate the mounting base 2 to move the corresponding shock-absorbing pad 8 up and down relative to the sliding ring 7. At the same time, when the car is driving on a road with varying slope, or when the car is turning, changing lanes, or driving on a side uneven road, the car causes the multiple mounting bases 2 to vibrate horizontally relative to the housing 1. That is, when the mounting base 2 drives the corresponding shock-absorbing pad 8 to squeeze the corresponding sliding ring 7, the elastic characteristics of the rubber material of the shock-absorbing pad 8 can absorb the horizontal vibration force generated by the car's movement. This prevents the horizontal vibration force generated by the car's movement from being directly transmitted to the inside of the housing 1 through the cooperation of the sliding ring 7 with the corresponding connecting cylinder 11 and fixing plate 12, which would damage the internal components of the housing 1. This helps to further reduce the risk of vibration fatigue of the housing 1 when the car is driving on complex road conditions, and further improves the shock absorption and buffering performance of the equipment for the housing 1.

[0028] Reference Figures 5-10 Friction plates 13, which are uniformly distributed in a ring, are fixedly installed on the inner wall of the mounting base 2. All friction plates 13 are arc-shaped.

[0029] Each sliding ring 7 has a uniformly distributed ring-shaped placement groove 14. Two compression springs 15 are fixedly installed on each placement groove 14. A pressing plate 16 is fixedly installed between each of the two compression springs 15. The pressing plates 16 are slidably installed on the corresponding placement groove 14. A pressing component is installed between the pressing plates 16.

[0030] The extrusion component includes support frames 17 that are fixedly mounted on the pressing plate 16, and each support frame 17 is fixedly mounted with a roller 18.

[0031] When the car vibrates vertically while driving, causing the mounting bracket 2 to move the corresponding two damping springs 4 and 6 up and down relative to the corresponding sliding ring 7 (e.g.) Figure 6 (As shown in the direction), the mounting base 2 can absorb the peak energy of the road impact on the vehicle during driving (that is, convert kinetic energy into elastic potential energy) by compressing and stretching the elastic deformation force generated by the two corresponding damping springs 4 and 6, thus preventing the vibration force from being directly transmitted to the inside of the housing 1 and causing damage to the internal components of the housing 1. In this process, the mounting base 2 will drive the corresponding multiple friction plates 13 along the direction of the vibration force. Figure 8The roller 18 moves vertically up and down in the direction shown. During this process, the friction (damping force) generated by the relative movement of the roller 18 and the friction plate 13 can convert the elastic potential energy stored in the deformation of the shock absorber spring 14 and the shock absorber spring 26 into heat energy dissipation. This reduces the vibration force generated by the rebound of the shock absorber spring 14 and the shock absorber spring 26, and avoids the rebound vibration force generated by the shock absorber spring 14 and the shock absorber spring 26 in the process of releasing their stored elastic potential energy. This is transmitted to the inside of the housing 1 through the cooperation of the corresponding sliding ring 7, connecting cylinder 11, and fixing plate 12. This helps to further reduce the risk of fatigue damage to components such as the battery cell and connecting plate inside the housing 1 due to continuous vibration. At the same time, it also helps to reduce the fatigue wear of the shock absorber spring 14 and the shock absorber spring 26 due to frequent rebound, and improve the service life of the shock absorber spring 14 and the shock absorber spring 26.

[0032] Meanwhile, because the friction plate 13 is entirely arc-shaped (in combination with...) Figure 9 As can be seen, when the car is moving and generates vertical vibration, the mounting base 2 drives the corresponding friction plate 13 to move vertically up and down. The friction plate 13, through the squeezing force generated by its inclined surface on the corresponding roller 18, will drive the corresponding rollers 18 to move closer to each other with the support frame 17 and the pressing plate 16. During this process, the corresponding compression spring 15 is continuously compressed. The reaction force generated by the compression of the compression spring 15 will be transmitted to the corresponding friction plate 13 through the cooperation of the corresponding pressing plate 16, the support frame 17 and the roller 18, increasing the frictional damping force between the roller 18 and the corresponding friction plate 13.

[0033] If the vibration amplitude generated by the car is small, and the mounting base 2 is subjected to force that drives the corresponding friction plate 13, the vertical movement distance relative to the corresponding sliding ring 7 and roller 18 is small (e.g.) Figure 9 (As shown in the direction), according to the above principle, at this time, the corresponding multiple friction plates 13 will only cooperate to drive the corresponding multiple rollers 18 to make small displacements. The deformation generated by the compression of the corresponding multiple compression springs 15 is small, and thus the reaction force generated by their cooperation is weak. That is, at this time, the frictional damping force between the rollers 18 and the corresponding friction plates 13 is small. Its low damping characteristics can not only buffer the high-frequency small-amplitude vibrations caused by the minor bumps on the road surface, but also prevent the vibration energy from being "hard-transmitted" due to excessive damping, thus avoiding damage to the precision components such as the battery cells, electrodes, and connecting plates inside the housing 1 due to fatigue caused by continuous small-amplitude vibrations.

[0034] However, if the vertical vibration amplitude generated by the car's movement is large, the compression and tension deformation of the two corresponding damping springs 4 and 6 by the mounting base 2 will be large, and the mounting base 2 will drive the corresponding friction plate 13 to move a large vertical distance relative to the corresponding sliding ring 7 and roller 18 (such as...). Figure 9(As shown in the direction), at this time, through the cooperation of the corresponding multiple friction plates 13 and the extrusion component, the compression deformation of the corresponding multiple compression springs 15 will gradually increase. During this stage, the reaction force generated by the compression springs 15 will also gradually increase, thereby gradually increasing the contact pressure between the roller 18 and the corresponding friction plates 13, that is, the frictional damping force between the two. This increases the weakening force and weakening speed of the vibration force generated by the rebound of the shock absorber spring 4 and the shock absorber spring 6, further reducing the risk of high vibration generated by the car driving being transmitted to the inside of the housing 1 and causing damage to the internal components of the housing 1.

[0035] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0036] In this invention, by using existing bolts and other fixing mechanical parts in conjunction with the mounting base 2 to fix the housing 1 to the bottom of the new energy vehicle, the mounting base 2, in conjunction with the corresponding two damping springs 4 and 6, can adaptively adjust the support stiffness of the device on the housing 1 according to its own weight. Furthermore, the elastic stiffness formed by the combination of multiple damping springs 4 and multiple damping springs 6 can be adaptively adjusted according to the magnitude of the vibration force generated by the vehicle's movement. This fundamentally avoids the risk of resonance between the vehicle and the housing 1, which could lead to amplification of the housing 1's amplitude and fatigue fracture of the internal battery cells / connecting pieces. This helps to improve the static support and dynamic damping effect of the device on the housing 1.

[0037] Meanwhile, during the vertical vibration generated by the car's movement, the mounting base 2, in conjunction with the corresponding multiple friction plates 13 and multiple rollers 18, can continuously consume the vibration force generated by the car. Furthermore, through the coordination of the arc-shaped inclined surfaces of the multiple friction plates 13 with the corresponding rollers 18 and compression springs 15, the intensity and efficiency of the device's energy consumption can be adaptively adjusted according to the magnitude of the vibration generated by the car's movement (low damping and gentle energy consumption during small vibrations, and high damping and rapid attenuation and rebound during large vibrations), which helps to further improve the device's shock absorption and buffering effect on the housing 1.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A battery box mounting structure, comprising a box (1), characterized in that, Multiple mounting bases (2) are fixedly installed on the housing (1). Two shock-absorbing springs (4) are fixedly installed on the inner wall of each mounting base (2). A connecting ring (5) is fixedly installed on one end of each shock-absorbing spring (4). A shock-absorbing spring (6) is fixedly installed on each connecting ring (5). A sliding ring (7) is fixedly installed between each of the two shock-absorbing springs (6). Each of the sliding rings (7) has a connecting cylinder (11) fixedly installed at its lower end, and the connecting cylinder (11) is slidably installed through and on the corresponding mounting base (2). Each of the connecting cylinders (11) has a fixing plate (12) fixedly installed at its lower end, and the fixing plate (12) is fixedly connected to the box body (1).

2. The battery box mounting structure according to claim 1, characterized in that, The pitch of each of the damping springs is smaller than that of the corresponding damping springs (6).

3. The battery box mounting structure according to claim 1, characterized in that, Each mounting base (2) has a shock-absorbing pad (8) fixedly installed on its inner wall. The shock-absorbing pad (8) is made of rubber material.

4. The battery box mounting structure according to claim 3, characterized in that, Each shock-absorbing pad (8) has a ring-shaped, uniformly distributed limiting groove (9), and each sliding ring (7) has a ring-shaped, uniformly distributed slider (10) fixedly installed on it, and each slider (10) is slidably installed on the corresponding limiting groove (9).

5. The battery box mounting structure according to claim 1, characterized in that, The mounting base (2) has friction plates (13) that are uniformly distributed in a ring on its inner wall. The friction plates (13) are all arc-shaped.

6. The battery box mounting structure according to claim 1, characterized in that, Each of the sliding rings (7) has a uniformly distributed ring-shaped placement groove (14). Two compression springs (15) are fixedly installed on each placement groove (14). A pressing plate (16) is fixedly installed between each of the two compression springs (15). The pressing plates (16) are slidably installed on the corresponding placement grooves (14). A squeezing component is installed between the pressing plates (16).

7. A battery box mounting structure according to claim 6, characterized in that, The extrusion component includes support frames (17) that are fixedly installed on the pressing plate (16), and each support frame (17) is fixedly equipped with a roller (18).

8. The battery box mounting structure according to claim 1, characterized in that, Each mounting base (2) has a threaded hole (3), and each fixing plate (12) has a through hole.

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