Storage battery packaging structure

Abstract

The invention relates to the technical field of storage battery packaging, in particular to a storage battery packaging structure which comprises a box body, a pair of sliding rods are fixedly connected to the bottom ends of the two vertical parallel inner sides of the box body, a plurality of connecting blocks are arranged on the outer sides of the sliding rods, and containing boxes used for containing battery packs are fixedly connected to the top ends of the connecting blocks. The containing boxes are made of metal materials, a connecting assembly used for driving the containing boxes to move synchronously is arranged between every two connecting blocks, an elastic assembly used for resetting is arranged between every two containing boxes, and a box cover is arranged at the top end of the box body. The balancing weight is driven by the inertia principle to move backwards and slide on the smooth surface, the multiple connecting blocks are connected through the connecting assemblies, so that sliding of the balancing weight can drive the multiple containing boxes to move synchronously, the same gaps are generated, and heat dissipation of the battery packs in the discharging state in the containing boxes is facilitated.

Description

Technical Field

[0001] This invention relates to the field of battery packaging technology, specifically to a battery packaging structure. Background Technology

[0002] A storage battery is a device that converts chemical energy into electrical energy and releases it when needed. It is an electrochemical device that converts chemical energy into electrical energy through electrochemical reactions and releases the stored electrical energy through electrochemical reactions when needed. The storage battery contains chemical substances and generates gas, heat and current during normal operation and charging and discharging. In order to protect the battery's safety, mechanical performance and environmental adaptability, and to provide electrical insulation, management and protection functions, a storage battery packaging structure is required.

[0003] Existing battery packs are generally stacked units consisting of multiple battery cells. During the discharge process, the battery pack will generate a certain amount of heat. Because the distance between each battery cell is fixed, the heat dissipation efficiency of the battery pack is limited. Therefore, in hot summer weather, the heat dissipated between the battery cells cannot be dissipated in time, which can make the vehicle more prone to flammability. Summary of the Invention

[0004] The purpose of this invention is to provide a battery packaging structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a battery packaging structure, comprising a housing, wherein a pair of sliding rods are fixedly connected to the bottom of the two vertical parallel inner sides of the housing, and a plurality of connecting blocks are provided on the outer side of the sliding rods. A receiving box for placing a battery pack is fixedly connected to the top of each connecting block. The receiving box is made of metal. A connecting component for driving the receiving box to move synchronously is provided between each connecting block. An elastic component for resetting is provided between each receiving box. A cover is provided at the top of the housing, and a top cover for sealing the receiving box is installed on the inner top side of the cover. Heat dissipation holes for air circulation are opened on both vertical parallel sides of the housing, and a cooling fan is installed in the middle of the outer side of one of the housings.

[0006] Through the above technical solution;

[0007] When the vehicle starts and accelerates, inertia causes the counterweight to move backward, pulling multiple containers apart and increasing the gap between them;

[0008] When the vehicle brakes, the elastic component retracts, causing multiple containers to move closer together, reducing the gaps between them.

[0009] As a further embodiment of the present invention, a groove and a smooth surface are provided on the bottom of the inner side of the housing. The connecting block near the cooling fan is fixed to the outside of the slide rod and its bottom is fixed to the bottom of the inner side of the housing. The other connecting blocks are slidably connected to the outside of the slide rod. The bottom of the connecting block farthest from the cooling fan is fixedly connected to a counterweight block, which slides on the smooth surface. The bottom of the connecting blocks in the middle is fixedly connected to a slider, which is slidably connected inside the groove.

[0010] With the above technical solution, a counterweight is fixed to the bottom of the rightmost connecting block inside the box. Because there are synchronously movable connecting components between adjacent connecting blocks inside the box, the thrust generated when the car starts will cause the counterweight to slide to the right of the box on the smooth surface. At this time, multiple connecting blocks located in the middle of the box will slide synchronously to the same distance on the outside of the slide rod, thereby achieving the same gap between multiple boxes, which facilitates the heat dissipation of the battery pack inside the box.

[0011] As a further embodiment of the present invention, the connecting assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod and the second connecting rod being rotatably connected to two adjacent connecting blocks, the first connecting rod being located at the upper end of the second connecting rod, and the other ends of the first connecting rod and the second connecting rod being rotatably connected together by a shaft.

[0012] With the above technical solution, when the container is separated, the ends of the first connecting rod and the second connecting rod on the connecting block will rotate in opposite directions. At the same time, the ends of the first connecting rod and the second connecting rod connected to each other will rotate in opposite directions on the outside of the shaft, and the included angle between the ends of the first connecting rod and the second connecting rod will increase, thereby increasing the gap between the container boxes.

[0013] As a further embodiment of the present invention, an electromagnet is fixedly connected to the vertical parallel inner side of the box near the counterweight, and the electromagnet and the counterweight attract each other.

[0014] Through the above technical solution, the electromagnet will become magnetic when the electric vehicle is in motion and attract the counterweight, so that the gap between the multiple compartments inside the box will not change with the shaking of the electric vehicle, ensuring that the heat generated by the battery pack inside the compartment can be stably dissipated during the electric vehicle's operation.

[0015] As a further embodiment of the present invention, a spur rack is fixedly connected to the bottom ends of both sides of the counterweight, a servo motor is fixedly connected to both sides of the box body that are horizontally parallel, a rotating shaft is fixedly connected to the output end of the servo motor, and a spur gear that meshes with the spur rack is fixedly connected to the end of the rotating shaft away from the servo motor. The rotating shaft is rotatably arranged on both sides of the box body that are horizontally parallel.

[0016] The above technical solution, with its rack and pinion configuration, ensures that the counterweight can be attracted to the electromagnet every time the car starts and moves, thereby improving the stability of the equipment's heat dissipation.

[0017] As a further embodiment of the present invention, the elastic component includes a return spring fixed between two adjacent receiving boxes, and a telescopic rod fixed between the two adjacent receiving boxes, the telescopic rod being located inside the return spring.

[0018] Through the above technical solution, the return spring, due to its elasticity, will pull back multiple containers to their initial positions when the electric vehicle brakes and stops.

[0019] As a further embodiment of the present invention, a movable groove is provided at the inner top of the box cover, a movable block is slidably connected inside the movable groove, the top cover is fixed to the bottom of the movable block, and the top cover can be slidably sleeved on the receiving box.

[0020] With the above technical solution, since the housing box plays a role in protecting the battery pack, the top cover, which is movable on the inner side of the top cover, can move along with the housing box.

[0021] As a further embodiment of the present invention, the two horizontally parallel inner sidewalls of the box are arranged in a symmetrical trapezoidal shape.

[0022] Through the above technical solution, the two horizontally parallel inner sidewalls are arranged in a trapezoidal shape, so that the openings at both ends of the box are larger than its internal width, so as to facilitate air circulation and achieve the Venturi effect.

[0023] As a further embodiment of the present invention, multiple arc-shaped blocks are fixedly connected to the two horizontally parallel inner sides of the box.

[0024] As a further embodiment of the present invention, the dynamic gap between the guide groove composed of multiple arc-shaped blocks and the battery pack forms an airflow acceleration channel.

[0025] The above technical solution, with its multiple arc-shaped blocks, creates a wave-like inner wall within the enclosure. This, combined with the maximum gap between the enclosure and the housing, increases airflow within the enclosure, thus improving heat dissipation for the battery pack inside.

[0026] The beneficial effects of this invention are:

[0027] 1. A battery encapsulation structure, which, when a vehicle starts and accelerates, uses the principle of inertia to drive a counterweight block to move backward and slide on a smooth surface. Since multiple connecting blocks are connected by connecting components, the sliding of the counterweight block can drive multiple housing boxes to move synchronously, thereby creating the same gap, which facilitates heat dissipation for the battery pack inside the housing box that is in a discharged state.

[0028] 2. A battery encapsulation structure, wherein an electromagnet is used to become magnetic when the electric vehicle is in motion, attracting and adhering the counterweight. This ensures that the gaps between the multiple housings inside the enclosure do not change with the shaking of the electric vehicle, thus ensuring that the heat generated by the battery pack inside the housing can be stably dissipated during the electric vehicle's operation. On the other hand, when the vehicle starts and accelerates, the electromagnet can also attract the sliding counterweight, thereby reducing the tension of the return springs between the housings and reducing the torque of the servo motor.

[0029] 3. A battery packaging structure, because each person presses the accelerator pedal with different force, the backward thrust generated when the vehicle starts is different. By setting up a rack and pinion, it can avoid the situation where the counterweight slides too far due to insufficient thrust, which would prevent it from being attracted and attached to the electromagnet. As a result, under the tension of the return spring, multiple housings would be pulled back to their initial positions, resulting in too small a gap between the housings, which would prevent effective heat dissipation of the battery pack in the discharge state.

[0030] 4. A battery encapsulation structure, wherein the two inner side walls of the box are arranged in a trapezoidal shape and multiple arc blocks are fixed to the two inner side walls in a wave shape, which, when matched with the maximum gap between the box and the housing, allows the flowing air to enter from the heat dissipation hole on one side of the box and flow out from the heat dissipation hole on the other side, can realize the Venturi effect, thereby increasing the air flow speed inside the box and accelerating the removal of heat generated by the battery pack in the discharge state.

[0031] When an electric vehicle is charging, a cooling fan installed on one side of the charging box can cool the battery pack. Attached Figure Description

[0032] Figure 1 This is a perspective view of the housing of the present invention;

[0033] Figure 2 This is a top view of the internal structure of the housing of the present invention;

[0034] Figure 3 This is a cross-sectional view of the internal structure of the housing of the present invention;

[0035] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0036] Figure 5 For the present invention Figure 3 Enlarged view at point B in the middle;

[0037] Figure 6 This is a schematic diagram of the structure of the connection component of the present invention;

[0038] Figure 7 This is a schematic diagram of the bottom of the box body of the present invention;

[0039] Figure 8 This is a bottom view of the box cover structure of the present invention.

[0040] In the diagram: 1. Box body; 2. Slide rod; 3. Connecting block; 4. Container box; 5. Box cover; 6. Top cover; 7. Heat dissipation hole; 8. Cooling fan; 9. Slide groove; 10. Smooth surface; 11. Counterweight; 12. Slider; 13. First connecting rod; 14. Second connecting rod; 15. Shaft; 16. Electromagnet; 17. Spur rack; 18. Servo motor; 19. Rotating shaft; 20. Spur gear; 21. Return spring; 22. Telescopic rod; 23. Moving groove; 24. Moving block; 25. Arc block. Detailed Implementation

[0041] 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.

[0042] Please see Figures 1 to 8 This invention provides a technical solution: a battery packaging structure, including a housing 1, a pair of sliding rods 2 fixedly connected to the bottom of the two vertical parallel inner sides of the housing 1, a plurality of connecting blocks 3 provided on the outer side of the sliding rods 2, and a receiving box 4 for placing a battery pack fixedly connected to the top of each connecting block 3. The receiving box 4 is made of metal. A connecting component for driving the receiving box 4 to move synchronously is provided between each connecting block 3. An elastic component for resetting is provided between each receiving box 4. A cover 5 is provided at the top of the housing 1. A top cover 6 for sealing the receiving box 4 is installed on the inner top side of the cover 5. Heat dissipation holes 7 for air circulation are opened on both vertical parallel sides of the housing 1. A cooling fan 8 is installed in the middle of the outer side of one of the housing 1.

[0043] By making the housing 4 a metal material, the heat generated by the battery pack inside the housing 4 can be transferred to the interior of the housing 1.

[0044] A counterweight 11 is fixed to the bottom of the rightmost connecting block 3 inside the box 1. Because there are synchronously movable connecting components between adjacent connecting blocks 3 inside the box 1, the thrust generated when the car starts will cause the counterweight 11 to slide to the right of the box 1 on the smooth surface 10. At this time, multiple connecting blocks 3 located in the middle of the box 1 will slide synchronously to the same distance on the outside of the slide bar 2, thereby achieving the same gap between multiple housing boxes 4, which facilitates the heat dissipation of the battery pack inside the housing box 4, and through the elasticity of the elastic component, multiple housing boxes 4 will be driven back to the initial position.

[0045] This allows the counterweight 11 to move backward during vehicle acceleration, pulling multiple containers 4 apart and increasing the gap between them for better heat dissipation.

[0046] When the electric vehicle brakes after completing its journey, if charging is in progress, the vehicle system will keep the counterweight 11 in place and turn on the cooling fan 8 on the outside of the housing 1 to remove the heat generated by the battery pack during charging. When the vehicle brakes, the return spring 21 and telescopic rod 22 in the elastic component will retract, causing the multiple housings 4 to move closer together and reduce the gap.

[0047] Please see Figure 7 The bottom of the box 1 has a sliding groove 9 and a smooth surface 10. The connecting block 3 near the cooling fan 8 is fixed to the outside of the sliding rod 2 and its bottom is fixed to the bottom of the box 1. The other connecting blocks 3 are slidably connected to the outside of the sliding rod 2. The bottom of the connecting block 3 farthest from the cooling fan 8 is fixed to a counterweight 11, which slides on the smooth surface 10. The bottom of the connecting blocks 3 in the middle is fixed to a slider 12, which is slidably connected inside the sliding groove 9.

[0048] A counterweight 11 is fixed to the bottom of the rightmost connecting block 3 inside the housing 1. Since there are synchronously movable connecting components between adjacent connecting blocks 3 inside the housing 1, the thrust generated when the car starts will cause the counterweight 11 to slide to the right of the housing 1 on the smooth surface 10. At this time, multiple connecting blocks 3 located in the middle of the housing 1 will slide synchronously to the same distance on the outside of the slide bar 2, thereby achieving the same gap between multiple housing boxes 4, which facilitates heat dissipation of the battery pack inside the housing box 4.

[0049] Please see Figure 3 , Figure 4 and Figure 6 The connecting assembly includes a first connecting rod 13 and a second connecting rod 14. One end of the first connecting rod 13 and the second connecting rod 14 are rotatably connected to two adjacent connecting blocks 3. The first connecting rod 13 is located at the upper end of the second connecting rod 14, and the other ends of the first connecting rod 13 and the second connecting rod 14 are rotatably connected together through a shaft 15.

[0050] When the housing 4 is separated, the ends of the first connecting rod 13 and the second connecting rod 14 located on the connecting block 3 will rotate in opposite directions. At the same time, the ends of the first connecting rod 13 and the second connecting rod 14 connected to each other will rotate in opposite directions on the outside of the shaft 15, and the included angle between the connecting ends of the first connecting rod 13 and the second connecting rod 14 will increase, thereby increasing the gap between the housing 4.

[0051] Please see Figure 5 and Figure 6An electromagnet 16 is fixed to the vertical parallel inner side of the box 1 near the counterweight 11, and the electromagnet 16 and the counterweight 11 attract each other.

[0052] When the electric vehicle is in motion, the electromagnet 16 is energized, making it magnetic and attracting the counterweight 11. This ensures that the gap between the multiple compartments 4 inside the housing 1 does not change with the shaking of the electric vehicle, thus ensuring that the heat generated by the battery pack inside the compartment 4 can be stably dissipated during the electric vehicle's operation.

[0053] Please see Figure 5 The counterweight 11 has a rack 17 fixed to both bottom ends. The box 1 has a servo motor 18 fixed to both sides of the horizontal parallel sides. The output end of the servo motor 18 is fixed to a rotating shaft 19. The end of the rotating shaft 19 away from the servo motor 18 is fixed to a spur gear 20 that meshes with the rack 17. The rotating shaft 19 is rotatably mounted on both sides of the horizontal parallel sides of the box 1.

[0054] Because everyone presses the accelerator differently, the backward thrust generated when the vehicle starts is different, and even the minimum thrust setting can make the spur racks 17 fixed to the bottom ends of both sides of the counterweight 11 mesh with the spur gears 20. In order to prevent the counterweight 11 from failing to attract and adhere to the electromagnets 16 fixed to the inside of the housing 1, the servo motors 18 fixed to the horizontal parallel sides of the housing 1 drive the rotating shaft 19 to rotate, so that the spur gears 20 fixed to the end of the rotating shaft 19 can mesh with the spur racks 17 fixed to the bottom ends of both sides of the counterweight 11, thereby driving the counterweight 11 to servo adhere to the electromagnets 16.

[0055] Please see Figure 3 , Figure 7 and Figure 8 The elastic component includes a return spring 21 fixed between two adjacent receiving boxes 4, and a telescopic rod 22 fixed between two adjacent receiving boxes 4, the telescopic rod 22 being located inside the return spring 21.

[0056] When the electric vehicle brakes after completing its journey, if the vehicle system does not detect charging within a certain period of time, the servo motor 18 will be activated to reverse and disconnect the power supply to the electromagnet 16, causing it to lose its magnetism. At this time, the spur gear 20 will reverse and drive the rack 17 on the counterweight block 11 to move in the opposite direction until the rack 17 disengages from the spur gear 20. At this time, the return spring 21 fixed between the multiple receiving boxes 4 will pull the multiple receiving boxes 4 back to their initial positions under the action of elasticity. At the same time, the telescopic rod 22 located between the two receiving boxes 4 will retract.

[0057] Please see Figure 2 and Figure 3The top inner end of the box cover 5 is provided with a movable groove 23, and a movable block 24 is slidably connected inside the movable groove 23. The top cover 6 is fixed to the bottom end of the movable block 24, and the top cover 6 can be slidably fitted onto the receiving box 4.

[0058] Since the housing 4 serves to protect the battery pack, the top cover 6, which is movable inside the top of the cover 5, can move along with the housing 4.

[0059] Please see Figure 7 The two inner side walls of the box 1 are arranged in a symmetrical trapezoidal shape. Multiple arc-shaped blocks 25 are fixed on the two inner side walls of the box 1. The guide groove composed of multiple arc-shaped blocks 25 and the dynamic gap between the battery pack form an airflow acceleration channel.

[0060] By setting the two horizontally parallel inner sidewalls of the housing 1 into a trapezoidal shape, and fixing multiple arc-shaped blocks 25 to the two inner sidewalls to form a wave shape, and cooperating with the maximum gap between the housing 4, the flowing air enters from the heat dissipation hole 7 on one side of the housing 1 and flows out from the heat dissipation hole 7 on the other side, which can realize the Venturi effect, thereby increasing the airflow speed inside the housing 1 and accelerating the removal of heat generated by the battery pack during the discharge state; when the electric vehicle is charging, the cooling fan 8 installed on one side of the housing 1 can cool the battery pack.

[0061] Working principle:

[0062] When the vehicle starts and accelerates, due to the principle of acceleration inertia, the counterweight 11 inside the box 1 will move backward and slide on the smooth surface 10 set at the bottom of the box 1.

[0063] At this time, the sliding of the counterweight 11 will synchronously drive the connecting block 3 fixed at its top to slide on the outside of a pair of sliding rods 2 inside the box 1; the leftmost connecting block 3 on the outside of the sliding rod 2 is fixed to the bottom inside the box 1, and the other connecting blocks 3 on the outside of the sliding rod 2 are all slidably connected to the outside of the sliding rod 2. Moreover, each pair of adjacent connecting blocks 3 are connected by the first connecting rod 13 and the second connecting rod 14. Therefore, the movement of the counterweight 11 will drive the sliding connecting blocks 3 to move synchronously by the same distance, so that the battery pack inside the receiving box 4 fixed at the top of the multiple connecting blocks 3 can produce the same gap.

[0064] When the connecting block 3 moves synchronously, the ends of the first connecting rod 13 and the second connecting rod 14 located on the connecting block 3 will rotate in opposite directions. At the same time, the ends of the first connecting rod 13 and the second connecting rod 14 connected to each other will rotate in opposite directions on the outside of the shaft 15, and the included angle between the connecting ends of the first connecting rod 13 and the second connecting rod 14 will increase from small to large, thereby increasing the gap between the housing boxes 4.

[0065] Because the top cover 6 slides in the moving groove 23 opened on the inner side of the top of the box cover 5 through the moving block 24, the movement of the container box 4 will drive the top cover 6 to move synchronously. In addition, the movement and unfolding of the container box 4 will cause the return spring 21 and the telescopic rod 22 between each pair of container boxes 4 to be stretched.

[0066] Because everyone presses the accelerator differently, the backward thrust generated when the vehicle starts is different. Even the minimum thrust setting can make the spur racks 17 fixed to the bottom ends of both sides of the counterweight 11 mesh with the spur gears 20. In order to prevent the counterweight 11 from failing to attract and adhere to the electromagnets 16 fixed to the inside of the housing 1, the servo motors 18 fixed to the horizontal parallel sides of the housing 1 drive the rotating shaft 19 to rotate, so that the spur gears 20 fixed to the end of the rotating shaft 19 can mesh with the spur racks 17 fixed to the bottom ends of both sides of the counterweight 11, thereby driving the counterweight 11 to servo adhere to the electromagnets 16.

[0067] When the electromagnet 16 is energized, it will generate strong magnetic attraction, which will enable the electric vehicle to attract and adhere to the counterweight 11 when it is moving, so that the gap between the multiple storage boxes 4 inside the box 1 will not change as the electric vehicle shakes when it is moving.

[0068] The two inner side walls of the box 1 are arranged in a trapezoidal shape and multiple arc blocks 25 are fixed on the two inner side walls to form a wave shape. The maximum gap between the box 1 and the housing 4 is matched so that the air flowing during the electric vehicle can enter from the heat dissipation hole 7 on one side of the box 1 and flow out from the heat dissipation hole 7 on the other side, realizing the Venturi effect to increase the air flow speed inside the box 1 and facilitate the removal of the heat generated by the battery pack in the discharge state.

[0069] When the electric vehicle brakes after completing its journey, if the vehicle system does not detect charging within a certain period of time, the servo motor 18 will be activated to reverse and disconnect the power supply to the electromagnet 16 to demagnetize it. At this time, the spur gear 20 will reverse and drive the rack 17 on the counterweight 11 to move in the opposite direction until the rack 17 disengages from the spur gear 20. At this time, the return spring 21 fixed between the multiple receiving boxes 4 will pull the multiple receiving boxes 4 back to the initial position under the elastic action, and the telescopic rod 22 located between the two receiving boxes 4 will retract.

[0070] If the vehicle system detects that the vehicle is charging, the vehicle system will keep the counterweight 11 in place and turn on the cooling fan 8 on the outside of the housing 1 to remove the heat generated by the battery pack charging.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery packaging structure, characterized in that: Includes a box body (1), on which a pair of sliding rods (2) are fixedly connected to the bottom of the two inner sides of the box body (1) vertically parallel. Multiple connecting blocks (3) are provided on the outer side of the sliding rods (2), and a container (4) for placing the battery pack is fixedly connected to the top of each connecting block (3). The container (4) is made of metal. Each of the connecting blocks (3) is provided with a connecting component for driving the container (4) to move synchronously; A resilient assembly for resetting is provided between each of the aforementioned containers (4); The top of the box (1) is provided with a box cover (5), and a top cover (6) for sealing the container (4) is installed on the inner top side of the box cover (5). The box (1) has ventilation holes (7) on both vertical parallel sides for air circulation, and a cooling fan (8) is installed on the middle of the outer side of one of the boxes (1).

2. The battery packaging structure according to claim 1, characterized in that: The box (1) has a sliding groove (9) and a smooth surface (10) on the bottom inside. The connecting block (3) near the cooling fan (8) is fixed to the outside of the slide bar (2) and its bottom is fixed to the bottom of the box (1); All other connecting blocks (3) are slidably connected to the outside of the slide rod (2); A counterweight (11) is fixed to the bottom end of the connecting block (3) furthest from the cooling fan (8), and the counterweight (11) slides on the smooth surface (10); The bottom of each connecting block (3) located in the middle is fixed with a slider (12), and the slider (12) is slidably connected inside the groove (9).

3. The battery packaging structure according to claim 1, characterized in that: The connecting assembly includes a first connecting rod (13) and a second connecting rod (14), one end of which is rotatably connected to two adjacent connecting blocks (3); The first connecting rod (13) is located at the upper end of the second connecting rod (14), and the other ends of the first connecting rod (13) and the second connecting rod (14) are rotatably connected together by a shaft (15).

4. The battery packaging structure according to claim 2, characterized in that: An electromagnet (16) is fixed to the vertical parallel inner side of the box (1) near the counterweight (11), and the electromagnet (16) and the counterweight (11) attract each other.

5. A battery packaging structure according to claim 4, characterized in that: A straight rack (17) is fixed to both bottom ends of the counterweight (11). Servo motors (18) are fixedly connected to both sides of the box (1) that are parallel to each other. A rotating shaft (19) is fixedly connected to the output end of the servo motor (18). A spur gear (20) that meshes with a rack (17) is fixedly connected to the end of the rotating shaft (19) away from the servo motor (18). The rotating shaft (19) is rotatably mounted on both sides of the box body (1) that are parallel to each other laterally.

6. The battery packaging structure according to claim 1, characterized in that: The elastic component includes a return spring (21) fixed between two adjacent receiving boxes (4), and a telescopic rod (22) fixed between the two adjacent receiving boxes (4), the telescopic rod (22) being located inside the return spring (21).

7. A battery packaging structure according to claim 1, characterized in that: The inner top of the box cover (5) is provided with a movable groove (23), and a movable block (24) is slidably connected inside the movable groove (23). The top cover (6) is fixed to the bottom of the movable block (24), and the top cover (6) can be slidably sleeved on the container box (4).

8. The battery packaging structure according to claim 1, characterized in that: The two horizontally parallel inner sidewalls of the box (1) are arranged in a symmetrical trapezoidal shape.

9. A battery packaging structure according to claim 8, characterized in that: The box (1) has multiple arc-shaped blocks (25) fixedly attached to its two horizontally parallel inner sides.

10. A battery packaging structure according to claim 9, characterized in that: The dynamic gap between the guide groove composed of multiple arc-shaped blocks (25) and the battery pack forms an airflow acceleration channel.

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