Soft package battery module box protection structure

Abstract

The invention discloses a soft package battery module box protection structure, and relates to the technical field of module batteries, the soft package battery module box protection structure comprises a box body capable of accommodating a plurality of soft package batteries, a plurality of side plates arranged in parallel are arranged in the box body, and a space capable of accommodating the soft package batteries is formed between two adjacent side plates. The distance between the side plates can be adjusted, and when the distance between the side plates is reduced to the limit degree, the side plates can be attached to the surfaces of the soft package batteries, so that the multiple soft package batteries are arranged in the box body at equal intervals. According to the invention, the plurality of side plates which are arranged in parallel are arranged in the box body, and the opposite sides of two adjacent side plates form a space capable of accommodating the soft package battery, so that the stability of the battery is improved, the extrusion phenomenon between the batteries is effectively reduced, and the safety of the whole soft package battery module during movement is improved. The interval between the side plates can be adjusted, so that the placement operation of the soft package battery is facilitated, the portability of the soft package battery in the installation process is improved, and the installation efficiency of the soft package battery is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery boxes, and in particular to a soft-pack battery module box protection structure. Background Art

[0002] Soft-pack batteries are soft batteries that use aluminum-plastic composite film as packaging materials. Also known as soft-pack batteries, they are a form of packaging for lithium-ion batteries. Their core feature is the use of aluminum-plastic composite film as the outer shell material. This design makes the battery more flexible and customizable. Soft-pack batteries are favored by the market for their high energy density, lightness, portability, and flexible layout. At the same time, they also have some disadvantages, such as complex manufacturing processes and poor product consistency.

[0003] Soft-pack batteries offer higher energy density, which means they can store more electrical energy in the same volume or weight. This is especially important for mobile devices and electric vehicles that pursue longer battery life. Despite the risk of electrolyte leakage and combustion and explosion, the safety of soft-pack batteries can be significantly improved by combining an efficient battery thermal management system. Soft-pack batteries typically have a long cycle life, which means they can maintain good performance after multiple charge and discharge cycles.

[0004] Soft-pack batteries are widely used in portable electronic devices such as smartphones and tablets, providing portable and safe power solutions for these devices. With the development of new energy vehicles, soft-pack batteries have also become an important component of new energy vehicle battery packs, especially in electric vehicles that pursue lightweight and high energy density.

[0005] In the existing soft-pack battery module box, multiple battery cells need to be connected in series during the assembly process. In order to maintain the stability of the battery cells, a protective plate needs to be installed to separate and fix the battery cells. Most of the protective plates are single plastic plate structures with weak structural strength. In the process of installing the battery cells, most of them need to be manually pressed against the surface of the battery cells, and the installation speed is slow. The soft-pack battery module after packaging has weak structural strength. When used in new energy vehicles, if it is subjected to vibration, collision and accidents, it is easy to cause damage to the battery cells in the soft-pack battery module. Therefore, the present invention provides a soft-pack battery module box protection structure to meet the needs. Summary of the invention

[0006] In view of the above problems, the present invention provides a soft-pack battery module box protection structure.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A soft-pack battery module box protection structure, comprising a box body capable of accommodating a plurality of soft-pack batteries, wherein a plurality of side panels arranged in parallel are provided in the box body, and a space capable of accommodating the soft-pack batteries is formed between two adjacent side panels. The spacing between the side panels is adjustable, and when the spacing between the side panels is reduced to a limit, the side panels can be attached to the surface of the soft-pack batteries, so that the plurality of soft-pack batteries are arranged equidistantly inside the box body.

[0008] The first and second protective brackets are respectively provided on the two side panels located at the front and rear ends of the multiple side panels. The outer sides of the first and second protective brackets are respectively connected to the side walls of the box body through the primary protective unit, and the secondary protective unit is provided between the first and second protective brackets and the side panels. When the spacing of the multiple side panels is adjusted, the first protective bracket, the primary protective unit connected to the first protective bracket, and the secondary protective unit can all be adjusted to leave space for installing soft-pack batteries.

[0009] Furthermore, both ends of the side plate are provided with limit bars pressed on the ends of the soft-pack batteries, and the bottom ends of the limit bars are provided with guide blocks that can move synchronously with the limit bars.

[0010] The same connecting rod is passed through two adjacent guide blocks, and the connecting rod is provided with a movable sleeve embedded in the front guide block, and a positioning sleeve installed on the rear guide block is fixed on the connecting rod, and the movable sleeve and the positioning sleeve are connected by a reset spring. The bottom end of the side plate at the rear end is fixed to the bottom plate of the box body. When the side plate at the head end moves toward the side plate at the tail end, the movable sleeve embedded in the guide block below it moves along the direction of the connecting rod, and the reset spring is squeezed to shrink toward the positioning sleeve until the side plate of the rear block moves.

[0011] Furthermore, a driving bar is provided on the first protective support, the driving bar extends to the outside of the box body, and a rack is provided on the driving bar.

[0012] A guide gear meshing with the rack is provided outside the box body through a bearing seat, and a hand wheel that can rotate synchronously with the guide gear is provided below the guide gear. When the guide gear meshes with the rack and moves, the drive bar, the first protective bracket and the side plate at the head end move synchronously.

[0013] Furthermore, a accommodating block is provided at the bottom end of the handwheel, a locking block capable of intercepting the rotation of the accommodating block and the handwheel is embedded in the accommodating block, the locking block is connected to a storage tray via a rotating shaft, and a limiting frame capable of accommodating the storage tray is provided outside the box body.

[0014] The bottom end of the storage tray is connected to the limit frame through a support spring, both sides of the storage tray are provided with guide joints, and both sides of the limit frame are provided with channels that can accommodate the movement of the guide joints.

[0015] Furthermore, the first-level protection units each include two symmetrically distributed first follower bars, the ends of the two first follower bars are connected to the second follower bars via a rotating shaft, and the other ends of the two second follower bars are fixedly connected to the same support frame via a rotating shaft; one end of the first follower bar away from the second follower bar is rotatably connected to the end of the first protective support or the second protective support, and the support frames are respectively arranged on the side walls of the box body corresponding to the first protective support or the second protective support.

[0016] Furthermore, the primary protection unit further includes two symmetrically distributed first support arc rods and a second support arc rod located in the same arc path as the first support arc rod, and the first support arc rod and the second support arc rod are connected by a pressure spring 1. The first support arc rod is arranged at both ends of the first protection bracket or the second protection bracket, and the second support arc rod is arranged on the side wall of the box body corresponding to the first protection bracket or the second protection bracket.

[0017] Furthermore, a first clamping joint is provided on the second follower bar opposite to the second protective support, and an extension plate vertically distributed with the second protective support is provided on the support frame opposite to the second protective support, and a second clamping joint is provided on the extension plate, and the first clamping joint and the second clamping joint are connected by a second pressure spring.

[0018] Furthermore, the secondary protection unit includes a special-shaped strip arranged on the inner side of the first protection support and the second protection support, and an arched strip arranged on the side panels at the front and rear ends. The special-shaped strip has a corrugated structure, and the recessed parts of the special-shaped strip at the center are opposite to the convex surface of the arched strip. The convex surface of the arched strip is provided with a plurality of equidistantly distributed rubber columns.

[0019] Furthermore, the side plate and the bottom end of the first protective bracket are respectively provided with a first sliding block and a second sliding block, and the bottom plate of the box body is provided with a guide rail matched with the first sliding block and the second sliding block.

[0020] Furthermore, the limiting strips are provided with accommodating channels for accommodating the exposed tabs of the soft-pack batteries, and the box body is provided with channels corresponding to the accommodating channels.

[0021] In summary, the technical effects and advantages of the present invention are as follows:

[0022] 1. The present invention provides a plurality of parallel side panels in the box body, and the opposite sides of two adjacent side panels form a space for accommodating soft-pack batteries, thereby improving battery stability, effectively reducing the squeezing phenomenon between batteries, and improving the safety of the entire soft-pack battery module during movement. The spacing between the plurality of side panels is adjustable to facilitate the placement of the soft-pack batteries, improve the portability of the soft-pack battery installation process, and thus improve the installation efficiency of the soft-pack batteries.

[0023] 2. The present invention is provided with a first protective support, a second protective support, a primary protective unit and a secondary protective unit outside the plurality of side panels, which can implement comprehensive protective operations on the plurality of arranged soft-pack batteries, and can maintain the stability of the soft-pack batteries when subjected to accidental impacts with large impact force, reduce the damage caused to the soft-pack batteries by external impacts, and is suitable for different working environments of soft-pack batteries, further improving the safety of the soft-pack batteries during operation. At the same time, both the primary protective unit and the secondary protective unit can adapt to the adjustment of the position of the side panels, and space is left for installing the soft-pack batteries without affecting the normal use of the primary protective unit and the secondary protective unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the structure after the upper cover of the box body of the present invention is disassembled.

[0027] Figure 3 This is a schematic diagram of the box body of the present invention after being disassembled.

[0028] Figure 4 This is a schematic diagram of the structure from a second viewing angle after the box body of the present invention is disassembled.

[0029] Figure 5 This is a schematic diagram of the first protection unit after being disassembled according to the present invention.

[0030] Figure 6 This is a schematic diagram of the second viewing angle after the first protection unit of the present invention is disassembled.

[0031] Figure 7 It is a schematic diagram of the connection structure of multiple side panels of the present invention.

[0032] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0033] Fig. 9 It is a schematic structural diagram of the box body of the present invention from a second viewing angle.

[0034] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at B in the middle.

[0035] In the figure: 1. box body; 2. side plate; 21. limit strip; 22. accommodating channel; 23. guide block; 24. connecting rod; 25. movable sleeve; 26. positioning sleeve; 27. reset spring; 3. first protective support; 31. drive strip; 32. guide gear; 33. hand wheel; 34. accommodating block; 35. locking block; 36. storage support; 361. guide joint; 37. support spring; 38. limit frame; 4. second protective support; 5. first follower strip; 6. second follower strip; 61. first clamping joint; 62. second clamping joint; 63. pressure spring 2; 7. support frame; 8. first support arc rod; 9. second support arc rod; 10. pressure spring 1; 11. special-shaped strip; 12. arched strip; 13. rubber column; 14. first slider; 15. second slider; 16. guide rail. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Reference Figure 1-10 A soft-pack battery module box protection structure shown includes a box body 1 that can accommodate multiple soft-pack batteries, and multiple side panels 2 arranged in parallel are provided in the box body 1, and a space for accommodating the soft-pack batteries is formed between two adjacent side panels 2. The spacing between the side panels 2 is adjustable. When the spacing between the side panels 2 is reduced to a limit, it can be attached to the surface of the soft-pack battery and can be attached to the battery in an upright state, so that multiple soft-pack batteries are arranged equidistantly inside the box body 1, which improves the stability of the battery, effectively reduces the squeezing phenomenon between the batteries, and improves the safety of the entire soft-pack battery module during movement.

[0038] At the same time, during the assembly of the soft-pack batteries, the spacing between the multiple side panels 2 can be adjusted. After the spacing is enlarged, space can be left for the quick placement of the soft-pack batteries. After the soft-pack batteries are placed, the spacing is adjusted to the original size to maintain the stability of the soft-pack batteries. The entire process does not require manual winding of the soft-pack batteries, which improves the portability of the soft-pack battery installation process and thereby improves the installation efficiency of the soft-pack batteries.

[0039] A first protective bracket 3 and a second protective bracket 4 are respectively provided on two side panels 2 located at the front and rear ends of the plurality of side panels 2. The outer sides of the first protective bracket 3 and the second protective bracket 4 are respectively connected to the side wall of the box body 1 through a primary protective unit, and a secondary protective unit is provided between the first protective bracket 3, the second protective bracket 4 and the side panels 2. There is a space for accommodating the primary protective unit between the first protective bracket 3, the second protective bracket 4 and the side wall of the box body 1, and there is a space for accommodating the secondary protective unit between the first protective bracket 3, the second protective bracket 4 and the side panels 2.

[0040] During the use of the box body 1 loaded with multiple soft-pack batteries, the primary protection unit and the secondary protection unit are located on both sides of the soft-pack battery to protect it, effectively reducing the damage to the soft-pack battery caused by vibration, collision and accidents, and further improving the safety of the soft-pack battery during operation. Since the spacing between the multiple side panels 2 is adjustable, in order to adapt to the movement of the side panels 2, in the present invention, when the spacing between the multiple side panels 2 is adjusted, the first protection bracket 3, the primary protection unit connected to the first protection bracket 3, and the secondary protection unit can be adjusted, leaving space for installing the soft-pack battery without affecting the normal use of the primary protection unit and the secondary protection unit.

[0041] Specifically, both ends of the side plate 2 are provided with a limit bar 21 pressed on the end of the soft pack battery, and the bottom end of the limit bar 21 is provided with a guide block 23 that can move synchronously with it. The limit bar 21 separates the soft pack battery from the guide block 23, see Figure 6 , Figure 7 .

[0042] The same connecting rod 24 is passed through the two adjacent guide blocks 23. The connecting rod 24 is provided with a movable sleeve 25 embedded in the front guide block 23, and a positioning sleeve 26 mounted on the rear guide block 23 is fixed on the connecting rod 24. The movable sleeve 25 and the positioning sleeve 26 are connected by a return spring 27. Figure 8 The bottom end of the side plate 2 at the rear end is fixed on the bottom plate of the box body 1.

[0043] During the installation of the soft-pack battery, after the soft-pack battery is placed, when the side panel 2 at the head end moves toward the side panel 2 at the tail end, the movable sleeve 25 embedded in the guide block 23 below it moves along the direction of the connecting rod 24, and the compression return spring 27 shrinks toward the positioning sleeve 26 until the rear side panel 2 moves. Therefore, when the side panel 2 at the head end moves toward the side panel 2 at the tail end, the remaining side panels 2 behind it can move toward the side panel 2 at the tail end, and when they move to the limit, they can support the soft-pack battery in the upright state and maintain the stability of the battery.

[0044] During the movement of the multiple side panels 2 toward the side panel 2 at the rear end, since the return spring 27 is in a contracted state, the return spring 27 has a buffering effect on the moving side panel 2. When the multiple side panels 2 support the soft-pack battery in sequence, the impact force generated during the movement and contact between all the side panels 2 and the soft-pack battery can be effectively reduced. In addition, the damage to the inside of the soft-pack battery caused by the contact between all the side panels 2 and the soft-pack battery can be effectively avoided, which has a protective effect on the soft-pack battery.

[0045] On the contrary, when the side plate 2 at the head end moves away from the side plate 2 at the tail end, under the action of the reset spring 27, the remaining side plates 2 behind it can move away from the side plate 2 toward the tail end and reset, thereby expanding the spacing and leaving space for taking and placing soft-pack batteries. Furthermore, in order to facilitate the movement of the side plate 2 at the head end, a driving bar 31 is provided on the first protective bracket 3 connected to the side plate 2, such as Figure 6 As shown, the driving bar 31 extends to the outside of the box body 1 , and a rack is provided on the driving bar 31 .

[0046] A guide gear 32 meshing with the rack is disposed outside the box body 1 through a bearing seat, and a hand wheel 33 which can rotate synchronously with the guide gear 32 is disposed below the guide gear 32. Fig.10 If the side panel 2 needs to be moved, the hand wheel 33 can be operated on the outside of the box body 1. When the guide gear 32 engages with the rack and moves, the driving bar 31, the first protective bracket 3 and the side panel 2 at the head end move synchronously, providing a power source for the movement of the side panel 2 and improving the portability of the operation.

[0047] The primary protection unit includes two symmetrically distributed first follower bars 5, and the ends of the two first follower bars 5 are connected to the second follower bars 6 through a rotating shaft. Figure 2-4 As shown, the other ends of the two second follower bars 6 are fixedly connected to the same support frame 7 through a rotating shaft. One end of the first follower bar 5 is connected to the second follower bar 6 through a rotating shaft, and the other end is rotatably connected to the end of the first protective bracket 3 or the second protective bracket 4. The support frame 7 is respectively arranged on the side wall of the box body 1 corresponding to the first protective bracket 3 or the second protective bracket 4.

[0048] The combination of the first follower bar 5 , the second follower bar 6 and the support frame 7 can form a triangular structure with the first protective bracket 3 and the second protective bracket 4 , thereby improving the structural strength of the first protective bracket 3 and the second protective bracket 4 .

[0049] At the same time, the primary protection unit also includes two symmetrically distributed first support arc rods 8 and a second support arc rod 9 located in the same arc path as the first support arc rod 8. Figure 4As shown, the first supporting arc rod 8 is connected to the second supporting arc rod 9 by a pressure spring 10, the first supporting arc rod 8 is arranged at both ends of the first protective support 3 or the second protective support 4, and the second supporting arc rod 9 is respectively arranged on the side walls of the box body 1 corresponding to the first protective support 3 or the second protective support 4.

[0050] When the box body 1 is impacted, the combination of the first supporting arc rod 8, the second supporting arc rod 9 and the pressure spring 10 can implement protective operations on the first protective support 3 and the second protective support 4. When the box body 1 vibrates under the action of the impact force, the pressure spring 10 connected to the first supporting arc rod 8 and the second supporting arc rod 9 can buffer the vibration phenomenon to prevent the vibration phenomenon from affecting the first protective support 3 and the second protective support 4.

[0051] It is worth mentioning that when the first protective support 3 moves synchronously with the driving bar 31, the secondary protective unit connected to the first protective support 3 moves synchronously, the first follower bar 5 and the second follower bar 6 can adjust the distribution angle, and the pressure spring 10 can also make elastic adaptive deformation, so that the first supporting arc rod 8 and the second supporting arc rod 9 can adjust the spacing, flexibly adapt to the movement of the first protective support 3 and the driving bar 31, and leave space for installing soft-pack batteries without affecting the normal use of the primary protective unit and the secondary protective unit.

[0052] The secondary protection unit includes a special-shaped strip 11 arranged inside the first protection bracket 3 and the second protection bracket 4, and an arched strip 12 arranged on the side plates 2 at the front and rear ends. The special-shaped strip 11 has a corrugated structure, and the concave part of the special-shaped strip 11 at the center is opposite to the convex surface of the arched strip 12. The convex surface of the arched strip 12 is provided with a plurality of equidistantly distributed rubber columns 13, see Figure 2-4 .

[0053] When the box body 1 is subjected to a relatively violent accident impact, the special-shaped strip 11 can improve the structural strength of the first protective support 3 and the second protective support 4, and the arched strip 12 can improve the structural strength of the side panels 2 located at the outermost ends. When the first protective support 3 and the second protective support 4 vibrate under the impact force, the rubber column 13 can buffer the entire vibration phenomenon to prevent the vibration from affecting the soft-pack battery in the side panel 2.

[0054] Therefore, in the document of the present invention, through the combination of the first-level protection unit and the second-level protection unit, comprehensive protection operations can be implemented for multiple arranged soft-pack batteries. When subjected to accident impacts with large impact forces, the stability of the soft-pack batteries can be maintained, and the damage caused to the soft-pack batteries by external impacts can be reduced. It is suitable for different working environments of soft-pack batteries.

[0055] In order to maintain the stability of the plurality of side panels 2 and the first protective bracket 3 during movement, the bottom ends of the side panels 2 and the first protective bracket 3 are respectively provided with a first slider 14 and a second slider 15, see Figure 7 The bottom plate of the box body 1 is provided with a guide rail 16 which matches the first slider 14 and the second slider 15, see Figure 6 .

[0056] The limiting strips 21 are provided with a receiving channel 22 for accommodating the exposed tabs of the soft-pack battery. Figure 7 The box body 1 is provided with a channel corresponding to the accommodating channel 22 to facilitate the welding operation of the tab.

[0057] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 4 As shown, a first clamping joint 61 is provided on the second follower bar 6 opposite to the second protective support 4, an extension plate vertically distributed with the second protective support 4 is provided on the support frame 7 opposite to the second protective support 4, a second clamping joint 62 is provided on the extension plate, and the first clamping joint 61 and the second clamping joint 62 are connected by a pressure spring 2 63.

[0058] When the box body 1 is subjected to collision or accident impact, the combination of the first clamping joint 61, the second clamping joint 62 and the second pressure spring 63, the support frame 7 and the second follower bar 6 can be quickly reset after being vibrated by the impact force from the outside of the box body 1, which can further buffer the impact force from outside the box body 1, further improve the impact resistance performance of the box body 1, and effectively improve the structural strength of the box body 1.

[0059] Since the position of the first protective support 3 needs to be adjusted during the actual working process, and since the guide gear 32 and the drive bar 31 are manually controlled, during the movement of the first protective support 3, the elastic potential energy of the pressure spring 10 will generate resistance to the first protective support 3 during the movement. In order to reduce the remaining resistance during the movement of the first protective support 3, the first clamping joint 61, the second clamping joint 62 and the pressure spring 2 63 are not installed on the outside of the first protective support 3. In actual use requirements, the pressure spring 10 and the pressure spring 2 63 with appropriate elastic resistance can also be selected, and the first clamping joint 61, the second clamping joint 62 and the pressure spring 2 63 are also installed on the outside of the first protective support 3.

[0060] Embodiment 3: Based on embodiment 1, Fig. 9 , Fig.10 As shown, in the natural state, in order to prevent the guide gear 32 from rotating, a receiving block 34 is provided at the bottom end of the hand wheel 33, and a locking block 35 is embedded in the receiving block 34 to intercept the rotation of the receiving block 34 and the hand wheel 33. When the locking block 35 is engaged with the receiving block 34, the guide gear 32 and the driving bar 31 can be kept in a stable state.

[0061] In the present invention, the locking block 35 is connected to the storage tray 36 through a rotating shaft, and a limit frame 38 that can accommodate the storage tray 36 is provided outside the box body 1, and the bottom end of the storage tray 36 is connected to the limit frame 38 through a support spring 37. In a natural state, the support spring 37 can maintain the stability of the locking block 35 and the receiving block 34 in a fitted state. If the hand wheel 33 is to be operated and the guide gear 32 is to be controlled to rotate, it is necessary to release the fitting connection between the locking block 35 and the receiving block 34. When the locking block 35, the limit frame 38 and the guide joint 361 are synchronously lowered under the pressure applied by humans, the support spring 37 contracts, leaving a movable margin that allows the locking block 35 to be screwed into the storage tray 36. In this way, the locking block 35 can be smoothly rotated to be stored inside the storage tray 36 after being separated from the receiving block 34, which is convenient for operating the hand wheel 33.

[0062] In order to prevent the storage tray 36 from being separated from the limiting frame 38, guide joints 361 are provided on both sides of the storage tray 36, and channels that can accommodate the movement of the guide joints 361 are provided on both sides of the limiting frame 38. When the storage tray 36 and the locking block 35 move, the guide joints 361 are moved inside the channels provided in the limiting frame 38, which can maintain the stability of the storage tray 36 and the locking block 35 during the movement.

[0063] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A soft-pack battery module box protection structure, comprising a box body (1) capable of accommodating a plurality of soft-pack batteries, characterized in that: The box body (1) is provided with a plurality of side panels (2) arranged in parallel, and a space for accommodating soft-pack batteries is formed between two adjacent side panels (2); the spacing between the side panels (2) is adjustable, and when the spacing between the side panels (2) is reduced to a limit, the side panels (2) can be attached to the surface of the soft-pack batteries, so that the plurality of soft-pack batteries are arranged at equal distances inside the box body (1); A first protective bracket (3) and a second protective bracket (4) are respectively provided on two side panels (2) located at the front and rear ends of the plurality of side panels (2); the outer sides of the first protective bracket (3) and the second protective bracket (4) are respectively connected to the side wall of the box body (1) through a primary protective unit, and a secondary protective unit is provided between the first protective bracket (3), the second protective bracket (4) and the side panels (2); when the spacing of the plurality of side panels (2) is adjusted, the first protective bracket (3), the primary protective unit connected to the first protective bracket (3), and the secondary protective unit can be adjusted, leaving space for installing soft-pack batteries.

2. The soft pack battery module box protection structure according to claim 1, characterized in that: Both ends of the side plate (2) are provided with limit bars (21) pressed on the ends of the soft-pack batteries, and the bottom ends of the limit bars (21) are provided with guide blocks (23) that can move synchronously with the limit bars; The two adjacent guide blocks (23) are both penetrated by a same connecting rod (24), the connecting rod (24) is provided with a movable sleeve (25) embedded in the front guide block (23), and the connecting rod (24) is fixed with a positioning sleeve (26) installed on the rear guide block (23), and the movable sleeve (25) and the positioning sleeve (26) are connected by a return spring (27); the bottom end of the side plate (2) located at the rear end is fixed to the bottom plate of the box body (1), when the side plate (2) located at the front end moves toward the side plate (2) located at the rear end, the movable sleeve (25) embedded in the guide block (23) below it moves along the direction of the connecting rod (24), and the return spring (27) is squeezed to shrink toward the positioning sleeve (26) until the side plate (2) of the rear block moves.

3. The soft pack battery module box protection structure according to claim 2, characterized in that: A driving bar (31) is provided on the first protective support (3), the driving bar (31) extends to the outside of the box body (1), and a rack is provided on the driving bar (31); A guide gear (32) meshing with the rack is provided outside the box body (1) through a bearing seat, and a hand wheel (33) that can rotate synchronously with the guide gear (32) is provided below the guide gear (32). When the guide gear (32) meshes with the rack and moves, the drive bar (31), the first protective bracket (3) and the side plate (2) located at the head end move synchronously.

4. The soft pack battery module box protection structure according to claim 3, characterized in that: The bottom end of the hand wheel (33) is provided with a receiving block (34), the receiving block (34) is embedded with a locking block (35) capable of blocking the rotation of the receiving block (34) and the hand wheel (33), the locking block (35) is connected to a storage tray (36) via a rotating shaft, and the box body (1) is provided with a limiting frame (38) capable of accommodating the storage tray (36); The bottom end of the storage tray (36) is connected to the limit frame (38) via a support spring (37), guide joints (361) are provided on both sides of the storage tray (36), and channels capable of accommodating the movement of the guide joints (361) are provided on both sides of the limit frame (38).

5. The soft pack battery module box protection structure according to claim 1, characterized in that: The first-level protection unit comprises two symmetrically distributed first follower bars (5), the ends of the two first follower bars (5) are connected to the second follower bars (6) via a rotating shaft, and the other ends of the two second follower bars (6) are fixedly connected to the same support frame (7) via a rotating shaft; one end of the first follower bar (5) away from the second follower bar (6) is rotatably connected to the end of the first protection bracket (3) or the second protection bracket (4), and the support frame (7) is respectively arranged on the side wall of the box body (1) corresponding to the first protection bracket (3) or the second protection bracket (4).

6. The soft pack battery module box protection structure according to claim 5, characterized in that: The primary protection unit further comprises two symmetrically distributed first support arc rods (8) and a second support arc rod (9) located on the same arc path as the first support arc rod (8), wherein the first support arc rod (8) and the second support arc rod (9) are connected via a pressure spring 1 (10); the first support arc rod (8) is arranged at both ends of the first protection support (3) or the second protection support (4), and the second support arc rod (9) is arranged on a side wall of the box body (1) corresponding to the first protection support (3) or the second protection support (4).

7. The soft pack battery module box protection structure according to claim 5, characterized in that: A first clamping joint (61) is provided on the second follower bar (6) directly opposite to the second protective support (4), and an extension plate vertically distributed with the second protective support (4) is provided on the support frame (7) directly opposite to the second protective support (4), and a second clamping joint (62) is provided on the extension plate, and the first clamping joint (61) and the second clamping joint (62) are connected by a second pressure spring (63).

8. The soft pack battery module box protection structure according to claim 1, characterized in that: The secondary protection unit comprises a special-shaped strip (11) arranged on the inner side of the first protection bracket (3) and the second protection bracket (4), and an arched strip (12) arranged on the side plates (2) at the front and rear ends. The special-shaped strip (11) is a corrugated structure, and the concave part of the special-shaped strip (11) at the center is opposite to the convex surface of the arched strip (12). The convex surface of the arched strip (12) is provided with a plurality of equidistantly distributed rubber columns (13).

9. The soft pack battery module box protection structure according to claim 1, characterized in that: The bottom ends of the side plate (2) and the first protective bracket (3) are respectively provided with a first sliding block (14) and a second sliding block (15), and the bottom plate of the box body (1) is provided with a guide rail (16) matched with the first sliding block (14) and the second sliding block (15).

10. The soft pack battery module box protection structure according to claim 2, characterized in that: The limiting strips (21) are each provided with a receiving channel (22) capable of accommodating the exposed tabs of the soft-pack battery, and the box body (1) is provided with a channel corresponding to the receiving channel (22).

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