A sodium-ion battery module with directional and intelligent heat dissipation for energy storage

Abstract

The present invention relates to the technical field of battery modules, and discloses a sodium-ion battery module capable of directional and intelligent heat dissipation. The module comprises a mounting base, a sodium-ion battery module, and a heat dissipation assembly. The heat dissipation assembly comprises a mounting plate, a heat conducting plate, an upper cover plate, heat dissipating fins, and a movable plate. A strip plate is fixedly connected to the side of the movable plate facing the heat dissipating fins, and a sponge layer is provided on the lower surface of the strip plate. The sodium-ion battery module capable of directional and intelligent heat dissipation can dissipate heat from the sodium-ion battery module through the heat conducting plate and the heat dissipating fins, and the heat is dissipated directionally into a heat dissipation channel by the heat dissipating fins. When the movable plate swings, the sponge layer on the strip plate contacts one surface of the heat dissipating fins, causing the alcohol liquid in the sponge layer to contact the heat dissipating fins and dissipate heat from the heat dissipating fins. This creates a large temperature difference between the heat dissipating fins and the sodium-ion battery module, thereby improving the heat dissipation efficiency of the heat dissipating fins.

Description

Technical Field

[0001] The present invention relates to the technical field of battery modules, and in particular to an energy storage sodium ion battery module capable of directionally and intelligently dissipating heat. Background Art

[0002] The working principle of a sodium-ion battery: During charging, sodium ions are released from the positive electrode material and, after passing through the electrolyte and separator, are embedded in the negative electrode material. Simultaneously, electrons flow from the negative electrode to the positive electrode via an external circuit. The discharge process is the opposite of the charging process. The working principle of a sodium-ion battery is basically similar to that of a lithium-ion battery (a rocking chair battery). The positive and negative electrode materials of a sodium-ion battery play a key role in the battery, and the electrolyte / separator are mainly selected and matched with the positive and negative electrode materials.

[0003] The patent publication number CN115312942A discloses a directional pressure relief pressure plate, a heat dissipation assembly, a battery stacking module and a battery pack. By setting a directional pressure relief interlayer cavity and opening a pressure relief hole on the pressure plate body, on the one hand, it can generate group pre-tightening pressure on the battery cells, and can also absorb the expansion force and expansion displacement of the battery cells, thereby improving the cycle life of the battery cells; on the other hand, when the battery cells contacted by the pressure plate body undergo thermal runaway, the thermal runaway gas generated can enter the directional pressure relief interlayer through the pressure relief hole and be released to the outside of the battery module through the exhaust hole, thereby preventing the battery module from exploding when thermal runaway occurs, thereby improving the safety performance of the battery module.

[0004] The above patent has the following problem: the heat dissipation of the battery module during operation is carried out by relying on heat dissipating fins. When the temperature of the heat dissipating fins is high, the heat transfer efficiency between the heat dissipating fins and the air decreases, thereby causing the heat dissipation efficiency of the heat dissipating fins to the battery module to decrease. Summary of the Invention

[0005] In view of the problem that the existing technology relies on heat dissipation fins to dissipate heat from the battery module during operation, when the temperature of the heat dissipation fins is high, the heat transfer efficiency between the heat dissipation fins and the air decreases, which in turn leads to a decrease in the heat dissipation efficiency of the heat dissipation fins to the battery module. A sodium-ion energy storage battery module with directional and intelligent heat dissipation is proposed.

[0006] The present application provides an energy storage sodium ion battery module with directionally intelligent heat dissipation, the purpose of which is to cool the heat dissipation fins so that the heat dissipation fins can more effectively dissipate heat from the sodium ion battery module.

[0007] The technical solution of the present invention is: an energy storage type sodium ion battery module capable of directionally intelligent heat dissipation, comprising a mounting base and a plurality of sodium ion battery modules vertically mounted on the mounting base, wherein the mounting base is provided with a heat dissipation component;

[0008] The heat dissipation assembly includes a mounting plate fixedly connected to the top surface of the mounting seat, and a heat conducting plate is fixedly connected to each side of the mounting plate. The two heat conducting plates on the same mounting plate are respectively abutted against the surfaces of two adjacent sodium ion battery modules. The upper ends of the multiple heat conducting plates are commonly fixedly connected to an upper cover plate, and the lower surface of the upper cover plate is abutted against the upper surface of the sodium ion battery module. A heat dissipation channel is formed between the two adjacent heat conducting plates, and a plurality of heat dissipation fins are fixedly connected to the surface of the heat conducting plate from top to bottom. Two movable plates are movably connected in the heat dissipation channel, and a strip plate is fixedly connected to the side of the movable plate facing the heat dissipation fins, and a sponge layer is provided on the lower surface of the strip plate.

[0009] Furthermore, a plurality of baffles are fixedly connected to the upper surface of the mounting seat in groups of two, and a clamping space is enclosed between two adjacent baffles. Both ends of the upper cover plate are respectively provided with a downwardly bent clamping plate, and the clamping plate correspondingly abuts against the adjacent side walls of the sodium ion battery module.

[0010] Furthermore, a connecting tube is fixedly connected to the bottom of the upper cover plate, and the connecting tube is arranged in the heat dissipation channel. The outer wall of the connecting tube is hinged with multiple hinge rods in sequence from top to bottom, and the ends of the hinge rods away from the connecting tube are hinged to the same outer wall of the movable plate. The movable plate is driven to swing by a driving unit installed on the mounting plate.

[0011] Furthermore, the interiors of the movable plate and the strip plate are hollow, liquid alcohol is stored inside the movable plate, a plurality of capillary holes are opened on one side of the strip plate where the sponge layer is provided, and an extrusion unit is provided on the movable plate.

[0012] Furthermore, the extrusion unit includes an extrusion plate engaged in the movable plate, the extrusion plate slides freely up and down in the inner cavity of the movable plate, and an extrusion rod is vertically fixed to the bottom of the extrusion plate, and the extrusion rod passes through the bottom of the movable plate and slides freely.

[0013] Furthermore, one end of the extrusion rod passing through the movable plate is fixedly sleeved with a stop ring, and a return spring is sleeved around the extrusion rod. The two ends of the return spring in the elastic force direction elastically press against the movable plate and the stop ring respectively and one by one.

[0014] Furthermore, the driving unit includes a fixing seat fixedly connected to the top surface of the mounting plate, the fixing seat is hollow inside and coaxially engaged with a piston, the piston slides freely up and down in the fixing seat, the lower end of the connecting pipe penetrates into the fixing seat, and the piston end surface is provided with a sliding hole for the connecting pipe to pass freely, an oil storage space is formed between the upper end surface of the piston and the top wall of the fixing seat, heat transfer oil is stored in the oil storage space, the upper end surface of the piston is vertically fixedly connected to a connecting rod, the connecting rod penetrates the top of the fixing seat and slides freely, a sliding pin is penetrated at the upper end of the connecting rod, and a hole for the connecting pipe to pass freely is provided on the hinge rod. The sliding pin is inserted into the waist-shaped hole, the length direction of the waist-shaped hole is consistent with the length direction of the hinge rod, the piston is provided with a sealing assembly for closing the lower port of the connecting pipe, a communicating cavity is provided inside the upper cover plate, the communicating cavity is connected with the upper end of the connecting pipe, a spray hole that passes through the communicating cavity is provided at the bottom of the upper cover plate, the mouth of the spray hole faces the outer wall of the sodium ion battery module, a storage cavity is provided inside the mounting seat, and dry powder is stored in the storage cavity, and a connecting hole that passes through the fixing seat is provided on the top of the mounting seat and the mounting plate, and the connecting hole is connected with the interior of the storage cavity.

[0015] Furthermore, the blocking assembly includes a bracket fixed to the bottom surface of the piston, a blocking plunger is fixed to the bracket, and the blocking plunger is used in conjunction with the connecting pipe.

[0016] Furthermore, a driving spring is installed in the fixing seat, and two ends of the driving spring in the elastic force direction elastically press against the piston and the inner bottom wall of the fixing seat respectively and one by one.

[0017] Furthermore, the blocking plunger is made of rubber.

[0018] Beneficial effects of the present invention:

[0019] 1. The heat of the sodium-ion battery module can be dissipated through the heat conduction plate and the heat dissipation fins, and the heat is dissipated directionally in the heat dissipation channel by the heat dissipation fins. When the movable plate swings, the sponge layer on the strip plate contacts one surface of the heat dissipation fin, so that the alcohol liquid in the sponge layer contacts the heat dissipation fins and dissipates heat from the heat dissipation fins. In this way, a large temperature difference is generated between the heat dissipation fins and the sodium-ion battery module, thereby improving the heat dissipation efficiency of the heat dissipation fins.

[0020] 2. The heat on the heat conduction plate is transferred to the fixed seat, thereby heating the heat conduction oil in the fixed seat. The heat conduction oil expands due to the heat and drives the piston to move downward, which in turn drives the connecting rod to move downward when the piston moves downward. The sliding pin can slide in the waist-shaped hole, thereby driving the movable plate to swing toward the heat dissipation fins, so that the sponge layer contacts the surface of the heat dissipation fins. In this way, the sponge layer is actively brought into contact with the heat dissipation fins through the heat on the heat conduction plate, making the operation more convenient.

[0021] 3. When the piston moves downward, it drives the blocking plunger to move downward, so that the blocking plunger gradually disengages from the state of being inserted in the connecting tube. When the temperature of the sodium ion battery module rises too quickly and combustion occurs, the heat of the sodium ion battery module is transferred to the heat transfer oil. The downward movement of the heat transfer oil can disengage the blocking plunger from the state of being inserted in the connecting tube, thereby making the interior of the connecting tube communicate with the inner cavity of the fixing seat and the interior of the storage cavity. In this way, the dry powder stored in the storage cavity can enter the spray hole in sequence from the inner cavity of the fixing seat, the connecting pipe, and the communicating cavity, and can be sprayed onto the surface of the sodium ion battery module, thereby performing a high-temperature fire extinguishing operation on the sodium ion battery module, thereby reducing the safety hazards caused by combustion and explosion of the sodium ion battery module to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure at an upward viewing angle;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure from a front view angle;

[0025] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0026] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure;

[0027] Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point B in the middle;

[0028] Figure 7 for Figure 3 The structural diagram after omitting the sodium ion battery module;

[0029] Figure 8 for Figure 7 The structural diagram after omitting the mounting plate, heat conducting plate and mounting base;

[0030] Figure 9for Figure 8 Schematic cross-sectional view of the structure;

[0031] Figure 10 for Figure 9 An enlarged schematic diagram of the local structure at point C in the middle.

[0032] In the figure: 1. Mounting seat; 2. Baffle; 3. Sodium-ion battery module; 4. Clamp; 5. Upper cover; 6. Mounting plate; 7. Heat dissipation fin; 8. Strip plate; 9. Sponge layer; 10. Heat conduction plate; 11. Movable plate; 12. Extrusion rod; 13. Return spring; 14. Hinge rod; 15. Connecting pipe; 16. Connecting rod; 17. Fixed seat; 18. Stop ring; 19. Sliding pin; 20. Waist-shaped hole; 21. Storage chamber; 22. Spray hole; 23. Connecting chamber; 24. Drive spring; 25. Piston; 26. Bracket; 27. Blocking plunger; 28. Extrusion plate. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Reference Figure 1-10 The present invention provides an energy storage type sodium ion battery module with directional intelligent heat dissipation, comprising a mounting base 1 and a plurality of sodium ion battery modules 3 vertically mounted on the mounting base 1 (the number of sodium ion battery modules 3 in this embodiment is set to three, of course, the number is not necessarily three in practice, and no specific limitation is made here). A mounting plate 6 made of a metal material is fixedly connected to the top surface of the mounting base 1. The mounting plate 6 has a heat conducting effect. The mounting plate 6 is preferably made of an aluminum alloy material, so that the heat conducting efficiency of the mounting plate 6 is high. A heat conducting plate 10 is fixedly connected to each side of the mounting plate 6. Furthermore, the heat conducting plate 10 can be integrally formed with the mounting plate 6. A heat dissipation channel is formed between two adjacent heat conducting plates 10, and a plurality of heat dissipation fins 7 are fixedly connected to the surface of the heat conducting plate 10 from top to bottom. The two heat conducting plates 10 on the same mounting plate 6 are respectively abutted against the surfaces of two adjacent sodium ion battery modules 3. The upper ends of the plurality of heat conducting plates 10 are commonly fixedly connected to an upper cover plate 5, and the lower surface of the upper cover plate 5 is abutted against the upper surface of the sodium ion battery module 3.

[0035] A plurality of baffles 2 are fixed to the upper surface of the mounting base 1 in groups of two, and a clamping space is formed between two adjacent baffles 2. A downwardly bent clamping plate 4 is provided at each end of the upper cover 5, and the clamping plate 4 is correspondingly abutted against the side wall of the adjacent sodium ion battery module 3. Figures 1 to 3The sodium ion battery modules 3 on the left and right sides are clamped and installed between the baffle 2, the upper cover 5, the clamping plate 4 and the heat conducting plate 10, and the sodium ion battery module 3 in the middle is clamped and installed between the baffle 2, the upper cover 5 and the two heat conducting plates 10. In this way, when assembling the sodium ion battery module 3, the baffle 2, the upper cover 5, the clamping plate 4 and the heat conducting plate 10 can pre-position the sodium ion battery module 3, and then use screws to fasten the sodium ion battery module 3 to the mounting base 1;

[0036] The bottom of the upper cover plate 5 is fixedly connected with a connecting pipe 15, and the connecting pipe 15 is arranged in the heat dissipation channel. The outer wall of the connecting pipe 15 is hinged with multiple hinge rods 14 in sequence from top to bottom (of course, the hinge rods 14 can also be set so that there are two on the same side of the connecting pipe 15). The hinge rods 14 are hinged with a movable plate 11 at one end away from the connecting pipe 15. The movable plate 11 is vertically placed in the heat dissipation channel. The side of the movable plate 11 facing the heat dissipation fins 7 is fixedly connected with a strip plate 8. The lower surface of the strip plate 8 is provided with a sponge layer 9. The interior of the movable plate 11 and the strip plate 8 is hollow. Liquid alcohol is stored in the movable plate 11. A plurality of capillary through holes are opened on the side of the strip plate 8 provided with the sponge layer 9. The liquid alcohol in the movable plate 11 enters the inner cavity of the strip plate 8, and then penetrates into the sponge layer 9 from the capillary through holes, thereby moistening the sponge layer 9.

[0037] The top surface of the mounting plate 6 is fixedly connected to a fixing seat 17. The interior of the fixing seat 17 is hollow and coaxially engaged with a piston 25. The piston 25 slides freely up and down in the fixing seat 17. An oil storage space is formed between the upper end surface of the piston 25 and the inner top wall of the fixing seat 17. Heat-conducting oil is stored in the oil storage space. Part of the heat on the heat-conducting plate 10 is transferred to the mounting plate 6, and then transferred to the heat-conducting oil in the oil storage space of the fixing seat 17, so that the heat-conducting oil expands due to heat. The lower end of the connecting pipe 15 penetrates into the fixing seat 17, and a sliding hole is provided on the end surface of the piston 25 for the connecting pipe 15 to pass freely. The upper end surface of the piston 25 is vertically fixedly connected to a connecting rod 16. The connecting rod 16 passes through the top of the fixing seat 17 and slides freely. A sliding pin 19 is passed through the upper end of the connecting rod 16. A waist-shaped hole 20 for the sliding pin 19 to be inserted is provided on the hinge rod 14. The length direction of the waist-shaped hole 20 is consistent with the length direction of the hinge rod 14;

[0038] When the heat transfer oil expands due to heat, the heat transfer oil in the oil storage space will generate a downward thrust on the piston 25, thereby driving the piston 25 to move downward. When the piston 25 moves downward, it simultaneously drives the connecting rod 16 to move downward. When the connecting rod 16 moves downward, the sliding pin 19 slides in the waist-shaped hole 20, causing the hinge rod 14 to swing downward along the hinge with the connecting pipe 15. When the hinge rod 14 swings downward, it drives the movable plate 11 to swing along the hinge with the hinge rod 14. Figure 3 、 4, 7 and 9, the movable plate 11, the connecting tube 15 and the hinge rod 14 constitute a parallel four-bar linkage mechanism, so that when the hinge rod 14 swings downward, the movable plate 11 moves downward synchronously and produces horizontal movement toward the direction of the heat dissipation fins 7. During this process, the strip plates 8 are in a parallel state until the sponge layer 9 contacts the upper surface of the corresponding heat dissipation fin 7. Since the sponge layer 9 has a certain thickness, when the piston 25 continues to move downward, the sponge layer 9 is compressed by the heat dissipation fin 7, so that the liquid alcohol in the sponge layer 9 can quickly seep out to the surface of the heat dissipation fin 7;

[0039] A U-shaped bracket 26 is fixedly connected to the bottom surface of the piston 25. The two side plates of the bracket 26 are fixedly connected to the lower end surface of the piston 25, and the horizontal section of the bracket 26 is located below the lower pipe opening of the connecting pipe 15. A blocking plunger 27 is fixedly connected to the bracket 26. The blocking plunger 27 is made of rubber material and is used in conjunction with the connecting pipe 15. A driving spring 24 is installed in the fixing seat 17. The two ends of the driving spring 24 in the elastic direction elastically press against the piston 25 and the inner bottom wall of the fixing seat 17 in a one-to-one correspondence. A connecting chamber 23 is provided inside the upper cover plate 5. The connecting chamber 23 is connected to the upper end of the connecting pipe 15. A spray hole 22 is provided at the bottom of the upper cover plate 5 and is connected to the connecting chamber 23. The mouth of the spray hole 22 faces the outer wall of the sodium ion battery module 3. A storage chamber 21 is provided inside the mounting seat 1. Dry powder is stored in the storage chamber 21. A connecting hole that passes through the fixing seat 17 is provided on the top of the mounting seat 1 and the mounting plate 6. The connecting hole is connected to the interior of the storage chamber 21.

[0040] When the piston 25 moves downward, it simultaneously drives the blocking plunger 27 to move downward, so that the blocking plunger 27 will gradually disengage from the connecting tube 15. Since the blocking plunger 27 has a certain length, when the temperature of the sodium ion battery module 3 continues to rise, the lower end of the connecting tube 15 will not open. When the temperature of the sodium ion battery module 3 is constant, the piston 25 will not continue to move downward, so that the end of the connecting tube 15 will not open. When the temperature of the sodium ion battery module 3 rises too quickly and a risk of combustion occurs, the piston 25 will continue to move downward until the blocking plunger 27 is completely disengaged from the plug-in state with the connecting tube 15. At this time, the lower end of the connecting tube 15 is connected to the inner cavity of the fixing seat 17. In this way, the dry powder in the storage chamber 21 of the mounting seat 1 will enter the connecting tube 15. The dry powder in the storage chamber 21 is pre-filled into the storage chamber 21 by an external device and has a certain pressure, so that the dry powder will enter the connecting chamber 23 of the upper cover plate 5 after entering the connecting tube 15 (refer to Figure 6 ), and then from the nozzle 22 (reference Figure 6) is sprayed onto the surface of the sodium ion battery module 3, so that when the sodium ion battery module 3 generates a combustion risk, the heat is blocked in time to avoid serious safety hazards. Furthermore, a temperature sensor can be installed on the outer shell of the sodium ion battery module 3 to continuously monitor the temperature change of the sodium ion battery module 3. In this way, the temperature change of the sodium ion battery module 3 can be discovered in time, and an air pressure sensor can be installed on the mounting base 1 to timely detect the dry powder pressure in the storage cavity 21 of the mounting base 1, thereby ensuring that the dry powder can have a pressure that is automatically transported to the communicating cavity 23 of the upper cover plate 5;

[0041] In addition, an extrusion plate 28 is mounted in the movable plate 11, and the extrusion plate 28 slides freely up and down in the inner cavity of the movable plate 11. An extrusion rod 12 is vertically fixed to the bottom of the extrusion plate 28, and the extrusion rod 12 passes through the bottom of the movable plate 11 and slides freely. One end of the extrusion rod 12 passing through the movable plate 11 is fixedly sleeved with a stop ring 18, and a return spring 13 is sleeved around the extrusion rod 12. The two ends of the return spring 13 in the elastic direction elastically press against the movable plate 11 and the stop ring 18 in a one-to-one correspondence. When the movable plate 11 swings in the direction of the heat dissipation fin 7, the lower end of the extrusion rod 12 moves downward and approaches the top surface of the mounting plate 6. When the movable plate 11 swings to a certain extent, the lower end of the extrusion rod 12 is close to the mounting plate 6. The top surfaces are against each other, and as the movable plate 11 continues to swing downward, the movable plate 11 and the squeezing rod 12 will move relative to each other, so that the movable plate 11 squeezes the liquid alcohol in the inner cavity of the movable plate 11, so that the liquid alcohol can be squeezed into the inner cavity of the strip plate 8 under pressure, thereby moistening the sponge layer 9, and by providing a reset spring 13, the reset spring 13 produces a downward elastic resisting force on the stop ring 18, so that when the movable plate 11 swings, the lower end of the squeezing rod 12 can contact the top surface of the mounting plate 6, thereby preventing the squeezing rod 12 from moving on its own in the initial state, which causes the squeezing rod 12 to be unable to resist the top surface of the mounting plate 6 in time when the movable plate 11 swings downward.

[0042] In summary, the working principle of the present invention is as follows: those skilled in the art know that the sodium ion battery module 3 will also generate heat during normal operation, and the heat will be maintained within a certain range. Therefore, when the sodium ion battery module 3 generates heat normally, the heat is transferred to the heat conducting plate 10 and dissipated through the heat dissipation fins 7, and part of the heat is transferred to the fixing seat 17. At this time, the heat has a limited heating effect on the thermal oil, and the degree of volume expansion of the thermal oil due to heat is small. The heat of the sodium ion battery module 3 is transferred through the heat dissipation fins 7, and heat exchange is generated with the air in the heat dissipation channel, thereby achieving directional heat dissipation of the sodium ion battery module 3;

[0043] When the temperature of the sodium ion battery module 3 rises too quickly, the temperature difference between the heat dissipation fins 7 and the sodium ion battery module 3 is small, resulting in an insignificant heat dissipation effect of the heat dissipation fins 7. Therefore, at this time, the heat transferred to the heat transfer oil is large, thereby increasing the volume expansion of the heat transfer oil due to heat. When the heat transfer oil expands due to heat, the heat transfer oil in the oil storage space will generate a downward thrust on the piston 25, thereby driving the piston 25 to move downward. When the piston 25 moves downward, it simultaneously drives the connecting rod 16 to move downward. When the connecting rod 16 moves downward, the sliding pin 19 slides in the waist-shaped hole 20, causing the hinge rod 14 to swing downward along the hinge with the connecting pipe 15, and the movable plate 11 moves downward synchronously and toward the heat dissipation fin 7. Horizontal movement is generated. During this process, the strip plates 8 are in a parallel state until the sponge layer 9 contacts the upper surface of the corresponding heat dissipation fin 7. When the movable plate 11 swings to a certain extent, the lower end of the extrusion rod 12 abuts against the top surface of the mounting plate 6, and as the movable plate 11 continues to swing downward, the movable plate 11 and the extrusion rod 12 will produce relative movement, so that the movable plate 11 squeezes the liquid alcohol in the inner cavity of the movable plate 11, so that the liquid alcohol can be squeezed into the inner cavity of the strip plate 8 under pressure, thereby wetting the sponge layer 9. In this way, the liquid alcohol will cool the heat dissipation fin 7, so that the temperature difference between the heat dissipation fin 7 and the sodium ion battery module 3 is large, so that the heat dissipation efficiency of the heat dissipation fin 7 is improved;

[0044] When the temperature of the sodium ion battery module 3 rises significantly and reaches a dangerous range, the heat transferred to the heat transfer oil is relatively large, and its volume expansion is also relatively large, thereby causing the blocking plunger 27 to begin to disengage from the state of being inserted into the connecting tube 15, thereby causing the lower end portion of the connecting tube 15 to be opened. At this time, the lower end portion of the connecting tube 15 is connected to the inner cavity of the fixing seat 17, so that the dry powder in the storage chamber 21 of the mounting seat 1 will enter the connecting tube 15. The dry powder in the storage chamber 21 is pre-filled into the storage chamber 21 by an external device and has a certain pressure, thereby causing the dry powder to enter the connecting tube 15 and then enter the communicating chamber 23 of the upper cover plate 5 (refer to Figure 6 ), and then sprayed from the nozzle 22 to the surface of the sodium ion battery module 3, so as to avoid timely blocking of heat when the sodium ion battery module 3 generates a combustion risk, thereby avoiding serious safety hazards.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sodium-ion battery module capable of directional intelligent heat dissipation, comprising a mounting base and a plurality of sodium-ion battery modules vertically mounted on the mounting base, characterized in that: The mounting base is provided with a heat dissipation component; The heat dissipation component includes a mounting plate fixedly connected to the top surface of the mounting seat, and a heat conducting plate is fixedly connected to each of the two sides of the mounting plate. The two heat conducting plates on the same mounting plate are respectively abutted against the surfaces of the two adjacent sodium ion battery modules. The upper ends of the multiple heat conducting plates are commonly fixedly connected to an upper cover plate, and the lower surface of the upper cover plate is abutted against the upper surface of the sodium ion battery module. A heat dissipation channel is formed between the two adjacent heat conducting plates, and a plurality of heat conducting fins are fixedly connected to the surface of the heat conducting plate from top to bottom. Two movable plates are movably connected in the heat dissipation channel, and a strip plate is fixedly connected to a side of the movable plate facing the heat fins. A sponge layer is provided on the lower surface of the strip plate, and the interiors of the movable plate and the strip plate are hollow. Liquid alcohol is stored in the movable plate, and a plurality of capillary through holes are opened on the side of the strip plate provided with the sponge layer, and an extrusion unit is provided on the movable plate. A connecting tube is fixedly connected to the bottom of the upper cover plate, and the connecting tube is arranged in the heat dissipation channel. The outer wall of the connecting tube is hinged with multiple hinge rods in sequence from top to bottom. The ends of the hinge rods away from the connecting tube are hinged to the outer wall of the same movable plate. The movable plate is driven to swing by a driving unit installed on the mounting plate.

2. The energy storage sodium ion battery module with directional intelligent heat dissipation according to claim 1 is characterized in that: A plurality of baffles are fixedly connected to the upper surface of the mounting seat in groups of two, and a clamping space is enclosed between two adjacent baffles. Both ends of the upper cover plate are respectively provided with a downwardly bent clamping plate, and the clamping plate correspondingly abuts against the adjacent side walls of the sodium ion battery module.

3. The energy storage sodium ion battery module with directional intelligent heat dissipation according to claim 1 is characterized in that: The extrusion unit includes an extrusion plate engaged in the movable plate, the extrusion plate slides freely up and down in the inner cavity of the movable plate, and an extrusion rod is vertically fixed to the bottom of the extrusion plate, and the extrusion rod passes through the bottom of the movable plate and slides freely.

4. The energy storage sodium ion battery module with directional intelligent heat dissipation according to claim 3 is characterized in that: One end of the extrusion rod passing through the movable plate is fixedly sleeved with a stop ring, and a return spring is sleeved around the extrusion rod. The two ends of the return spring in the elastic force direction elastically press against the movable plate and the stop ring respectively and one by one.

5. The energy storage sodium ion battery module with directional intelligent heat dissipation according to claim 1 is characterized in that: The driving unit includes a fixing seat fixedly connected to the top surface of the mounting plate, the fixing seat is hollow inside and coaxially engaged with a piston, the piston slides freely up and down in the fixing seat, the lower end of the connecting pipe penetrates into the fixing seat, and the piston end surface is provided with a sliding hole for the connecting pipe to pass freely, an oil storage space is formed between the upper end surface of the piston and the inner top wall of the fixing seat, heat transfer oil is stored in the oil storage space, the upper end surface of the piston is vertically fixedly connected to a connecting rod, the connecting rod penetrates the top of the fixing seat and slides freely, a sliding pin is penetrated at the upper end of the connecting rod, and a slot for the sliding pin is provided on the hinge rod A waist-shaped hole for pin insertion, the length direction of the waist-shaped hole is consistent with the length direction of the hinge rod, the piston is provided with a sealing assembly for closing the lower port of the connecting pipe, a communicating cavity is provided inside the upper cover plate, the communicating cavity is connected to the upper end of the connecting pipe, a spray hole that passes through the communicating cavity is provided at the bottom of the upper cover plate, the mouth of the spray hole faces the outer wall of the sodium ion battery module, a storage cavity is provided inside the mounting seat, and dry powder is stored in the storage cavity, and a connecting hole that passes through the fixing seat is provided on the top of the mounting seat and the mounting plate, and the connecting hole is connected to the inside of the storage cavity.

6. The energy storage sodium ion battery module with directional intelligent heat dissipation according to claim 5 is characterized in that: The blocking assembly includes a bracket fixedly connected to the bottom surface of the piston, a blocking plunger is fixedly connected to the bracket, and the blocking plunger is used in conjunction with the connecting pipe.

7. The energy storage sodium ion battery module with directional intelligent heat dissipation according to claim 6 is characterized in that: A driving spring is installed in the fixing seat, and two ends of the driving spring in the elastic force direction elastically press against the piston and the inner bottom wall of the fixing seat respectively and one by one.

8. The energy storage sodium ion battery module with directional intelligent heat dissipation according to claim 7 is characterized in that: The blocking plunger is made of rubber material.

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