Energy storage battery box capable of preventing battery cell from being overheated

Abstract

The invention relates to the technical field of energy storage battery boxes, in particular to an energy storage battery box capable of preventing overheating of a battery cell, which comprises a bottom box, a box body bolted to the inner side of the bottom box and a top box fixedly connected to the top of the box body, the right side of the box body is fixedly connected with an air inlet frame, and heat dissipation fins are mounted at the bottom of the bottom box. An auxiliary assembly is arranged on the inner side of the bottom box. According to the energy storage battery box capable of preventing the battery cell from being overheated, the bottom box, the box body and the top box are arranged to be matched, the battery cell is installed on the inner side of the bottom box so as to be protected, the air inlet frame is matched with the heat dissipation fan and the circulation piece, when the heat dissipation fan is started, airflow in the external environment can be blown into the box body, and the heat dissipation effect is improved. And at the moment, the extension pieces are opened, and air flow needs to frequently penetrate through the fin plates, the flat sheets and the side plates along the side plates, so that the retention time of cold air flow can be effectively prolonged, and a good heat dissipation effect can be achieved while the power of the heat dissipation fan is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage battery boxes, and in particular to an energy storage battery box that can prevent the battery cells from overheating. Background Art

[0002] An energy storage battery is a device for storing electrical energy, and a battery box is a device for storing and protecting an energy storage battery pack. It is usually made of metal or high-strength plastic and has a strong outer shell to protect the internal battery from external physical impacts, moisture intrusion, dust pollution, etc.

[0003] After retrieval, a Chinese patent discloses a battery box and a battery box assembly including the same, with an application publication number of CN109390507B. This patent has the effect of enabling the battery box to be quickly and accurately positioned relative to the bracket, making the cooperation between the battery box and the bracket more reliable and facilitating automated loading and unloading.

[0004] When encapsulating and protecting an energy storage battery, a battery box can be used. The problems existing in the prior art are as follows: When the energy storage battery is continuously operating, it may generate more heat. When it is difficult to dissipate heat for a long time, it is easy to cause accelerated aging at positions such as the wiring joints. At the same time, in some existing devices, cooling components are used to cool the positions of the battery cells, but they not only may consume a high amount of energy, but also are difficult to adjust the cooling effect according to the actual situation, and are inconvenient to use. Summary of the Invention

[0005] In order to flexibly adjust the energy saving or improve the heat dissipation efficiency of the battery box according to actual needs, the present application provides an energy storage battery box that can prevent the battery cells from overheating.

[0006] The present application provides an energy storage battery box that can prevent the battery cells from overheating, and adopts the following technical solutions: An energy storage battery box that can prevent the battery cells from overheating includes a bottom box, a box body bolted to the inner side of the bottom box, and a top box fixedly connected to the top of the box body. An air inlet frame is fixedly connected to the right side of the box body, heat dissipation fins are installed at the bottom, and an auxiliary component is provided inside. A cross bar and a longitudinal bar are fixedly connected to the inner side of the bottom box. A side plate is fixedly connected to the top of the cross bar, and a heat conducting plate is fixedly connected to the top of the longitudinal bar. The side of the heat conducting plate close to the battery cell is in contact with the battery cell, the top of the longitudinal bar is in contact with the battery cell, and a side plate is integrally formed on the side of the heat conducting plate away from the battery cell. A heat dissipation fan is installed inside the air inlet frame, a flow-through piece is provided inside the air inlet frame, and a guide rail is fixedly connected to the bottom inside the bottom box. The auxiliary component includes fin plates and a number of extension pieces. One side of the fin plate close to the side plate is rotatably connected to the side plate, one side of the extension piece close to the side plate is in contact with the side plate, a guide block is slidably connected to the inside of the guide rail, a push frame is fixedly connected to the top of the guide block, a bracket is movably connected to the inside of the push frame, and one side of the bracket close to the fin plate is movably connected to the fin plate.

[0007] By adopting the above technical solution, the bottom box, the box body and the top box cooperate to install the battery cell inside the bottom box for protection. The arranged air inlet frame cooperates with the cooling fan and the circulation sheet. When the cooling fan starts, it will blow the air flow in the external environment into the interior of the box body. The coolant medium inside the circulation sheet will reduce the temperature of the circulation sheet to achieve the effect of cooling the passing air flow, so that the air flow blown into the box body is more stable and lower in temperature. When the temperature of the battery cell is moderate, the heat conducting plate in direct contact with the battery cell can conduct out the heat of the battery cell and dissipate the heat through the air flow blown by the cooling fan. Control the wing plates of the auxiliary component to open along the side plate. At this time, the extension piece is also opened, so that the flat piece fits and displaces along the side plate and extends. At this time, the air flow needs to pass through the wing plates, the flat piece and the side plate along the side plate frequently, so the residence time of the cold air flow will be effectively extended, and a good heat dissipation effect can be achieved without increasing the power of the cooling fan. At the same time, since the bottom of the battery cell is hollowed out, the heat dissipation effect at the bottom is also better. The side of the arranged heat dissipation fins close to the battery cell will also conduct heat. Since part of it penetrates through the bottom box and extends to the outside, the temperature reduction efficiency is relatively high, further improving the temperature reduction effect of the battery cell. When the temperature of the battery cell continues to rise during continuous operation and it is difficult to dissipate heat naturally, control the wing plates of the auxiliary component to reset and be parallel to the side plate, and retract the flat piece to be parallel to the side plate. At this time, the air flow can smoothly pass through the outside of the battery cell and directly take away the heat. After increasing the power of the cooling fan, the dissipated heat can be taken away more efficiently, so as to dissipate the heat of the battery cell according to the actual heat generation situation to prevent its temperature from being too high.

[0008] Optionally, the extension piece includes a flat piece. An assembly rod is fixedly connected to the bottom of the flat piece. A spring is fixedly connected to the outside of the assembly rod. A transmission plate is fixedly connected to the side of the spring away from the assembly rod. A short plate is fixedly connected to the bottom of the transmission plate. A slider is fixedly connected to the bottom of the short plate. The outside of the slider is slidably connected to the guide rail.

[0009] Optionally, a sliding rod is slidably connected to the inside of the assembly rod, and the spring is sleeved on the outside of the sliding rod.

[0010] Optionally, two lead screws are rotatably connected to the inside of the guide rail. Gears are fixedly connected to both lead screws. The two gears mesh with each other. A control motor is fixedly connected to the front side of the guide rail. The output end of the control motor is fixedly connected to one of the lead screws.

[0011] Optionally, a secondary strip is fixedly connected to the side of the side plate close to the battery cell. A rotating shaft is fixedly connected to the inside of the secondary strip. The outside of the rotating shaft is rotatably connected to the wing plate.

[0012] Optionally, an activity slot is provided on the inner side of the side plate, the bracket is arranged on the inner side of the activity slot, a torsion spring is fixedly connected to the outer side of the auxiliary strip, and one side of the torsion spring close to the fin is fixedly connected to the fin.

[0013] Optionally, a limiting frame is fixedly connected to the outer side of the fin, a limiting block is slidably connected to the inner side of the limiting frame, and the outer side of the limiting block is rotatably connected to the bracket.

[0014] Optionally, a wind guide plate is fixedly connected to the right side of the side plate, a plurality of empty slots are provided on the inner side of the heat conducting plate, an exhaust slot is provided on the left side of the box body, and a partition plate is fixedly connected to the left inner side of the box body.

[0015] Optionally, a convex portion is integrally formed on the outer side of the heat dissipation fin, the convex portion is clamped with the bottom box, and sealing strips are adhesively connected to both the inner side and the outer side of the bottom box, and the sealing strips are arranged on the outer side of the convex portion.

[0016] Optionally, the circulation sheet is made of hollow aluminum, adjacent two circulation sheets are connected by a cooling pipe, the cooling pipe is externally connected to a cooling circulation system, and a blocking net is fixedly connected to the outer side of the air inlet frame.

[0017] In summary, the present application includes the following beneficial technical effects: For the energy storage battery box that can prevent the battery cells from overheating, by setting the cooperation of the bottom box, the box body and the top box, the battery cells are installed inside the bottom box to protect them. The air inlet frame cooperates with the heat dissipation fan and the circulation sheet. When the heat dissipation fan starts, the air flow in the external environment will be blown into the interior of the box body. The coolant medium inside the circulation sheet will reduce the temperature of the circulation sheet. When the temperature of the battery cells is moderate, the heat conducting plate in direct contact with the battery cells can conduct out the heat of the battery cells. Control the fin of the auxiliary component to open along the side plate. At this time, the extension piece will also be opened. The air flow needs to pass through the fin, the flat piece and the side plate along the side plate frequently. Therefore, the residence time of the cold air flow will be effectively extended, and a good heat dissipation effect can be achieved while reducing the power of the heat dissipation fan. When the temperature of the battery cells continues to rise during continuous operation and it is difficult to dissipate heat naturally, control the fin of the auxiliary component to reset and be parallel to the side plate, and retract the flat piece to be parallel to the side plate. At this time, the air flow can flow smoothly through the outside of the battery cells and directly take away the heat. After increasing the power of the heat dissipation fan, the dissipated heat can be taken away more efficiently, and the energy saving or the improvement of the heat dissipation efficiency can be flexibly adjusted according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure in the present invention; Figure 2 It is a schematic diagram of the structure of the box body in the present invention; Figure 3 It is a schematic diagram of the structure of the auxiliary component in the present invention; Figure 4 Schematic structural diagram of the extension part in the present invention; Figure 5 Partial structural schematic diagram of the bottom box in the present invention; Figure 6 Schematic structural diagram of the cooling fan in the present invention; Figure 7 Schematic structural diagram of the side plate in the present invention; Figure 8 Connection schematic diagram of the fin plate in the present invention; Figure 9 Schematic diagram of the position of the control motor in the present invention.

[0019] Explanation of reference numerals: 1. Bottom box; 2. Box body; 3. Top box; 4. Air inlet frame; 5. Heat dissipation fins; 6. Auxiliary component; 601. Fin plate; 602. Extension part; 602a. Flat plate; 602b. Assembly rod; 602c. Spring; 602d. Transmission plate; 602e. Short plate; 602f. Slide block; 603. Guide block; 604. Pusher; 605. Bracket; 7. Horizontal bar; 8. Vertical bar; 9. Side plate; 10. Heat conducting plate; 11. Side board; 12. Cooling fan; 13. Flow-through piece; 14. Slide rod; 15. Lead screw; 16. Gear; 17. Control motor; 18. Auxiliary bar; 19. Rotating shaft; 20. Activity groove; 21. Torsion spring; 22. Limit frame; 23. Limit block; 24. Air guide plate; 25. Exhaust slot; 26. Partition board; 27. Sealing strip; 28. Blocking net; 29. Guide rail. Detailed description of the specific implementation

[0020] The following further elaborates on this application in conjunction with the attached Figures 1-9 for a more detailed description. Embodiment

[0021] An energy storage battery box capable of preventing the overheating of battery cells disclosed in an embodiment of this application includes a bottom box 1, a box body 2 bolted to the inner side of the bottom box 1, and a top box 3 fixedly connected to the top of the box body 2. An air inlet frame 4 is fixedly connected to the right side of the box body 2. Heat dissipation fins 5 are installed at the bottom of the bottom box 1. An auxiliary component 6 is provided inside the bottom box 1. A horizontal bar 7 and a vertical bar 8 are fixedly connected inside the bottom box 1. A side plate 9 is fixedly connected to the top of the horizontal bar 7. A heat conducting plate 10 is fixedly connected to the top of the vertical bar 8. One side of the heat conducting plate 10 close to the battery cell is in contact with the battery cell. The top of the vertical bar 8 is in contact with the battery cell. A side board 11 is integrally formed on the side of the heat conducting plate 10 away from the battery cell. A cooling fan 12 is installed inside the air inlet frame 4. A flow-through piece 13 is provided inside the air inlet frame 4. A guide rail 29 is fixedly connected to the bottom inside the bottom box 1; The auxiliary component 6 includes a fin plate 601 and a plurality of extension members 602. One side of the fin plate 601 close to the side plate 9 is rotatably connected to the side plate 9. One side of the extension member 602 close to the side plate 11 is in contact with the side plate 11. A guide block 603 is slidably connected to the inner side of the guide rail 29. A push frame 604 is fixedly connected to the top of the guide block 603. A bracket 605 is movably connected to the inner side of the push frame 604. One side of the bracket 605 close to the fin plate 601 is movably connected to the fin plate 601; By setting the cooperation of the bottom box 1, the box body 2 and the top box 3, the battery cell is installed inside the bottom box 1 to protect it. The set air inlet frame 4 cooperates with the heat dissipation fan 12 and the flow-through sheet 13. When the heat dissipation fan 12 starts, it will blow the air flow in the external environment into the interior of the box body 2. The coolant medium inside the flow-through sheet 13 will reduce the temperature of the flow-through sheet 13, so as to achieve the effect of cooling the passing air flow, making the air flow blown into the interior of the box body 2 more stable and lower in temperature. When the temperature of the battery cell is moderate, the heat conduction plate 10 in direct contact with the battery cell can conduct out the heat of the battery cell, and dissipate the heat through the air flow blown by the heat dissipation fan 12. Control the fin plate 601 of the auxiliary component 6 to open along the side plate 9. At this time, the extension member 602 is also opened, so that the flat piece 602a fits and displaces along the side plate 11 and extends. At this time, the air flow needs to pass through the fin plate 601, the flat piece 602a and the side plate 11 frequently along the side plate 9. Therefore, the residence time of the cold air flow can be effectively extended, and a good heat dissipation effect can be achieved without increasing the power of the heat dissipation fan 12. At the same time, since the bottom of the battery cell is hollow, the heat dissipation effect at the bottom is also better. The heat dissipation fins 5 set on the side close to the battery cell will also conduct heat. Since part of it penetrates through the bottom box 1 and extends to the outside, the temperature reduction efficiency is relatively high, further improving the heat dissipation effect of the battery cell. When the temperature of the battery cell continues to rise during continuous operation and it is difficult to dissipate heat naturally, control the fin plate 601 of the auxiliary component 6 to reset and be parallel to the side plate 9, and retract the flat piece 602a to be parallel to the side plate 11. At this time, the air flow can flow smoothly through the outside of the battery cell and directly take away the heat. After increasing the power of the heat dissipation fan 12, the dissipated heat can be taken away more efficiently, so as to dissipate the heat of the battery cell according to the actual heat generation situation to prevent its temperature from being too high.

[0022] Among them, two lead screws 15 are rotatably connected to the inner side of the guide rail 29. Gears 16 are fixedly connected to the outer sides of the rear sides of the two lead screws 15. The two gears 16 are meshed and connected. A control motor 17 is fixedly connected to the front side of the guide rail 29. The output end of the control motor 17 is fixedly connected to the right lead screw 15. By arranging the two lead screws 15 to be driven by the gears 16, the control motor 17 can drive the two lead screws 15 to rotate simultaneously, and the rotation directions of the two lead screws 15 are opposite, so as to drive the sliders 602f and the guide blocks 603 on both sides of the battery cell to move towards or away from each other. A secondary strip 18 is fixedly connected to the side of the side plate 9 close to the battery cell. A rotating shaft 19 is fixedly connected to the inner side of the secondary strip 18. The outer side of the rotating shaft 19 is rotatably connected to the wing plate 601. By arranging the secondary strip 18 to cooperate with the rotating shaft 19, it is convenient to supply the wing plate 601 to rotate or deflect in angle along the side plate 9, so as to control the wing plate 601 to open or retract.

[0023] An activity groove 20 is formed in the inner side of the side plate 9. The bracket 605 is arranged inside the activity groove 20. A torsion spring 21 is fixedly connected to the outer side of the secondary strip 18. The side of the torsion spring 21 close to the wing plate 601 is fixedly connected to the wing plate 601. By arranging the activity groove 20 to cooperate with the torsion spring 21, the activity groove 20 can facilitate the provision of position space when the bracket 605 pushes or pulls the wing plate 601. The torsion spring 21 is used to assist the wing plate 601 to reset after being stressed. A limit frame 22 is fixedly connected to the outer side of the wing plate 601. A limit block 23 is slidably connected to the inner side of the limit frame 22. The outer side of the limit block 23 is rotatably connected to the bracket 605. By arranging the limit frame 22 to cooperate with the limit block 23, when the bracket 605 pushes or pulls the wing plate 601, the bracket 605 and the limit block 23 will rotate relative to each other, and the sliding of the limit block 23 inside the limit frame 22 can reasonably drive the wing plate 601 to avoid the structure being stuck and difficult to use.

[0024] A wind guide plate 24 is fixedly connected to the right side of the side plate 9. A number of empty grooves are provided inside the heat conducting plate 10. An exhaust groove 25 is formed in the left side of the box body 2. A partition plate 26 is fixedly connected to the left side inside the box body 2. By arranging the wind guide plate 24, it is convenient to guide the passing air flow to avoid flowing to positions that will not contact the battery cell, effectively utilizing the air flow circulation space; The arranged partition plate 26 can facilitate impurities in the external environment to enter the inside of the box body 2 from the exhaust groove 25 when exhausting the air flow through the exhaust groove 25. A convex part is integrally formed on the outer side of the heat dissipation fin 5. The convex part is clamped with the bottom box 1. Sealing strips 27 are bonded to both the inner side and the outer side of the bottom box 1. The sealing strips 27 are arranged on the outer side of the convex part; By providing the raised portion, the heat dissipation fins 5 can be stably installed inside the bottom box 1. The sealing strip 27 can improve the sealing performance of the structure and avoid the deterioration of the sealing performance of the bottom box 1. The circulation sheet 13 is made of hollow aluminum material. Two adjacent circulation sheets 13 are connected by a cooling pipe. The cooling pipe is externally connected to a cooling circulation system. A blocking net 28 is fixedly connected to the outside of the air inlet frame 4. The circulation sheet 13 made of hollow aluminum material can facilitate the circulation of cooling medium. The external cooling circulation system cooperates with the cooling pipe to continuously circulate and supply coolant to the inside of the circulation sheet 13. The blocking net 28 can block larger external impurities.

[0025] Working principle of this embodiment: when in use, if the temperature of the battery cell is moderate, the air inlet frame 4 cooperates with the cooling fan 12 and the circulation sheet 13. When the cooling fan 12 is started, the airflow in the external environment will be blown into the interior of the box body 2. The coolant medium inside the circulation sheet 13 will reduce the temperature of the circulation sheet 13 to achieve the effect of cooling the passing airflow, so that the airflow blown into the interior of the box body 2 is stable and lower. The heat conducting plate 10 directly in contact with the battery cell can export the heat of the battery cell and dissipate the heat through the airflow blown in by the cooling fan 12. The fin plate 601 of the control auxiliary component 6 is opened along the side plate 9. At this time, the two screw rods 15 are driven by the gear 16 in cooperation with the control motor 17. The two screw rods 15 rotate in opposite directions to drive the sliders 602f and the guide blocks 603 on both sides of the battery cell to move toward each other, so as to open the extension piece 602, so that the flat sheet 602a is displaced in contact with the side plate 11 and extended. At this time, the airflow needs to frequently pass through the fin plate 601, the flat plate 602a and the side plate 11 along the side plate 9, thereby effectively extending the retention time of the cold airflow, and a good heat dissipation effect can be achieved without increasing the power of the cooling fan 12. At the same time, the bottom of the battery cell is not placed directly, so the ground can also be used as a heat dissipation surface. The heat dissipation fins 5 arranged on the side close to the battery cell will also conduct heat. Since part of the heat dissipation fins penetrate the bottom box 1 and extend to the outside, the temperature reduction efficiency is relatively high, which further improves the cooling effect of the battery cell. When the temperature of the battery cell continues to rise under continuous operation and it is difficult to dissipate heat naturally, the fin plate 601 of the control auxiliary component 6 is reset and parallel to the side plate 9, and the flat plate 602a is retracted to be parallel to the side plate 11. At this time, the airflow can pass smoothly through the outside of the battery cell and directly take away the heat. After increasing the power of the cooling fan 12, the dissipated heat can be taken away more efficiently. Example

[0026] refer to Figure 4, an energy storage battery box capable of preventing the battery cell from overheating further includes an extension member 602. Wherein, the extension member 602 includes a flat plate 602a, a bottom of the flat plate 602a is fixedly connected with an assembly rod 602b, an outer side of the assembly rod 602b is fixedly connected with a spring 602c, a side of the spring 602c away from the assembly rod 602b is fixedly connected with a transmission plate 602d, a bottom of the transmission plate 602d is fixedly connected with a short plate 602e, a bottom of the short plate 602e is fixedly connected with a slider 602f, and an outer side of the slider 602f is slidably connected with a guide rail 29. By setting the slider 602f to slide along the guide rail 29, the connected short plate 602e can push the connected transmission plate 602d to approach or move away from the heat conducting plate 10. When the flat plate 602a moves excessively until it contacts the heat conducting plate 10, the spring 602c can provide a certain additional displacement space for the transmission plate 602d to facilitate the transmission of the lead screw 15. Since the sizes of multiple flat plates 602a gradually decrease from the air inlet position to the air outlet position, when the flat plates 602a open, the air passage space near the air outlet position is larger, while the air passage space near the air inlet position is smaller, and the cross-sectional area of the air flow channel will correspondingly decrease, which will relatively increase the air flow speed. Because the air flow will first pass through the right side of the box body 2, when it enters the left side of the box body 2, the temperature will increase because part of the heat is taken away. Therefore, the cross-sectional area of the air flow channel on the left side of the bracket 605 can relatively extend the residence time of the air flow on the left side of the box body 2, avoiding a large temperature difference between the left and right sides of the battery cell.

[0027] Wherein, a slide rod 14 is slidably connected to an inner side of the assembly rod 602b, and the spring 602c is arranged on an outer side of the middle slide rod 14. By setting the slide rod 14, it is used to limit the relative movement of the assembly rod 602b and the transmission plate 602d, and at the same time limit the deformation of the spring 602c, and prevent excessive wear or difficult reset caused by its radial deformation.

[0028] Working principle of this embodiment: When in use, by setting the slider 602f to slide along the guide rail 29, the short plate 602e connected thereto can push the transmission plate 602d connected thereto closer to or farther away from the heat conduction plate 10. When the flat plate 602a moves excessively until it contacts the heat conduction plate 10, the spring 602c can provide a certain additional displacement space for the transmission plate 602d to facilitate the transmission of the lead screw 15. Since the sizes of the multiple flat plates 602a decrease in sequence from the air inlet position to the air outlet position, therefore, when the flat plates 602a are opened, the air passage space near the air outlet position is larger, while the air passage space near the air inlet position is smaller, and the cross-sectional area of the air flow channel will correspondingly decrease, which will relatively increase the air flow speed. Because the air flow will first pass through the right side of the box body 2, when entering the left side of the box body 2, the temperature of the air flow will be relatively higher on the left side of the box body 2 than on the right side because part of the heat is carried away. The cross-sectional area of the air flow channel on the left side of the bracket 605 is used to relatively extend the residence time of the air flow in the left side of the box body 2. At the same time, the heat dissipation fan 12 is arranged on one side of the battery cell, which can facilitate the cooling of the connection piece position of the battery cell.

[0029] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An energy storage battery box capable of preventing overheating of a battery cell, comprising a bottom box, a box body bolted to the inner side of the bottom box, and a top box fixedly connected to the top of the box body, characterized in that: An air inlet frame is fixedly connected to the right side of the box body, a heat dissipation fin is installed at the bottom, and an auxiliary component is provided inside; a horizontal bar and a vertical bar are fixedly connected to the inside of the bottom box, a side plate is fixedly connected to the top of the horizontal bar, a heat conduction plate is fixedly connected to the top of the vertical bar, the side of the heat conduction plate close to the battery cell is in contact with the battery cell, the top of the vertical bar is in contact with the battery cell, and an integrally formed side plate is provided on the side of the heat conduction plate away from the battery cell, a heat dissipation fan is installed on the inside of the air inlet frame, a circulation sheet is provided on the inside of the air inlet frame, and a guide rail is fixedly connected to the bottom of the inside of the bottom box; The auxiliary components include a fin plate and several extensions. The side of the fin plate close to the side plate is rotatably connected to the side plate, the side of the extension plate close to the side plate is in contact with the side plate, the inner side of the guide rail is slidably connected to a guide block, the top of the guide block is fixedly connected to a push frame, the inner side of the push frame is movably connected to a bracket, and the bracket is movably connected to the fin plate on the side close to the fin plate.

2. An energy storage battery box capable of preventing battery cells from overheating according to claim 1, characterized in that: The extension piece includes a flat plate, the bottom of the flat plate is fixedly connected to an assembly rod, the outer side of the assembly rod is fixedly connected to a spring, the side of the spring away from the assembly rod is fixedly connected to a transmission plate, the bottom of the transmission plate is fixedly connected to a short plate, the bottom of the short plate is fixedly connected to a slider, and the outer side of the slider is slidably connected to the guide rail.

3. The energy storage battery box capable of preventing overheating of battery cells according to claim 2, characterized in that: The inner side of the assembly rod is slidably connected with a slide rod, and the spring is sleeved on the outer side of the slide rod.

4. The energy storage battery box capable of preventing overheating of battery cells according to claim 1, characterized in that: The inner side of the guide rail is rotatably connected to two screw rods, both screw rods are fixedly connected to gears, the two gears are meshed with each other, the front side of the guide rail is fixedly connected to a control motor, and the output end of the control motor is fixedly connected to one of the screw rods.

5. The energy storage battery box capable of preventing battery cells from overheating according to claim 1, characterized in that: A side of the side plate close to the battery core is fixedly connected with a secondary strip, an inner side of the secondary strip is fixedly connected with a rotating shaft, and an outer side of the rotating shaft is rotatably connected to the fin plate.

6. The energy storage battery box capable of preventing overheating of battery cells according to claim 5, characterized in that: A movable groove is opened on the inner side of the side plate, the bracket is arranged on the inner side of the movable groove, a torsion spring is fixedly connected to the outer side of the secondary strip, and the torsion spring is fixedly connected to the fin plate on one side close to the fin plate.

7. The energy storage battery box capable of preventing overheating of battery cells according to claim 1, characterized in that: The outer side of the fin plate is fixedly connected to a limiting frame, the inner side of the limiting frame is slidably connected to a limiting block, and the outer side of the limiting block is rotatably connected to the bracket.

8. The energy storage battery box capable of preventing battery cells from overheating according to claim 1, characterized in that: An air guide plate is fixedly connected to the right side of the side plate, a plurality of empty slots are arranged on the inner side of the heat conduction plate, an exhaust slot is opened on the left side of the box body, and a partition plate is fixedly connected to the inner left side of the box body.

9. The energy storage battery box capable of preventing overheating of battery cells according to claim 1, characterized in that: An integrally formed raised portion is provided on the outer side of the heat dissipation fin, the raised portion is clamped with the bottom box, and sealing strips are bonded to the inner and outer sides of the bottom box, and the sealing strips are provided on the outer side of the raised portion.

10. The energy storage battery box capable of preventing battery cells from overheating according to claim 1, characterized in that: The circulation sheet is made of hollow aluminum material, and two adjacent circulation sheets are connected by a cooling pipe, and the cooling pipe is externally connected to a cooling circulation system. A blocking net is fixedly connected to the outer side of the air inlet frame.

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