A lithium battery bundling module structure

Abstract

The present invention provides a lithium battery bundling module structure, which relates to the field of battery bundling. The lithium battery bundling module structure includes an end plate module, a connection module, and a plurality of batteries. The end plate module includes a first end plate and a second end plate. A plurality of mounting holes are formed inside both the first end plate and the second end plate. Second buffer sheets are fixedly connected to the opposite sides of the first end plate and the second end plate. The plurality of batteries are all located between the first end plate and the second end plate. In the present invention, by providing the first buffer sheet and the second buffer sheet made of rubber material, rubber has good elasticity and buffering performance during the use of the battery module, can absorb vibration and impact, reduce the collision and damage between batteries, and thus improve the service life of the battery. During the use of the battery, the heat conducting sheet can effectively conduct the temperature generated during the use of the battery to the heat sink, and then quickly dissipate it through the heat sink, enhancing the heat dissipation effect of the entire module.

Description

Technical Field

[0001] The present invention relates to the field of battery bundling, and specifically to a lithium battery bundling module structure. Background Art

[0002] With the rapid development of new energy technologies, lithium batteries are widely used in electric vehicles, energy storage systems, consumer electronics and other fields due to their high energy density, long cycle life and environmental protection characteristics. However, lithium batteries face many challenges during actual use. Especially in the structural design of battery modules, how to improve their stability, safety and service life has become the focus of the industry. During the transportation, installation and use of lithium battery modules, they will inevitably be affected by vibration and impact. If the batteries are not firmly fixed, it may lead to battery displacement, collision or even damage, thus triggering potential safety hazards.

[0003] Lithium battery modules need to fix multiple batteries together through a bundling structure. Traditional bundling methods mostly use plastic straps, but these methods have the following problems. Plastic straps have low strength and are prone to breakage due to aging or temperature changes. Therefore, a bundling structure with high strength, easy installation and adjustment is needed to effectively enhance the overall stability of the battery module. Summary of the Invention

[0004] 1. Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a lithium battery bundling module structure, which solves the problems that the fixation between batteries is not firm, which may lead to battery displacement, collision or even damage, thus triggering potential safety hazards. Lithium battery modules need to fix multiple batteries together through a bundling structure. Traditional bundling methods mostly use plastic straps, but these methods have the following problems. Plastic straps: have low strength and are prone to breakage due to aging or temperature changes.

[0006] 2. Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A lithium battery bundling module structure includes end plate modules, connection modules and multiple batteries. The end plate modules include a first end plate and a second end plate. Multiple mounting holes are provided inside both the first end plate and the second end plate. Second buffer sheets are fixedly connected to the opposite sides of the first end plate and the second end plate. The multiple batteries are all located between the first end plate and the second end plate;

[0009] Two heat conducting sheets are placed inside the gaps between multiple batteries. The surfaces of the two heat conducting sheets in the same gap are respectively abutted against the corresponding battery surfaces. A first buffer sheet is placed between every two heat conducting sheets in the same gap. Heat sinks are fixedly connected to both sides of multiple heat conducting sheets. Both the first buffer sheet and the second buffer sheet are made of rubber material;

[0010] Through the above technical solution, by providing the first buffer sheet and the second buffer sheet made of rubber material, rubber has good elasticity and buffering performance during the use of the battery module, which can effectively absorb vibration and impact, reduce the collision and damage between batteries, thereby improving the service life of the batteries and reducing the subsequent maintenance cost at the same time. By providing a heat conducting sheet between two adjacent batteries, the heat conducting sheet is in contact with the battery surface, and at the same time, the heat conducting sheet is fixedly connected to the heat sink. During the use of the battery, the heat conducting sheet can effectively conduct the temperature generated during the use of the battery to the heat sink, and then quickly dissipate it through the heat sink, enhancing the heat dissipation effect of the entire module and ensuring that the battery maintains an appropriate temperature during operation.

[0011] Further, two bundling modules are provided on one side of the surface of the first end plate. The bundling module includes a mounting block fixed on the surface of the first end plate. An installation groove is provided inside the mounting block. A clamping block is slidably connected to the installation groove. One end of the clamping block is threadedly connected with a first bolt. A bundling steel belt is slidably connected inside the installation groove. A clamping groove is provided at one end of the bundling steel belt extending into the installation groove. The clamping block extends into the clamping groove and is slidably connected with the clamping groove;

[0012] Through the above technical solution, during use, place the bundling steel belt inside the installation groove, then align the clamping block with the position of the clamping groove and install it inside the installation groove to ensure that the clamping block enters the clamping groove, and then screw the first bolt into the clamping block to fix the bundling steel belt. When disassembling, only need to unscrew the first bolt, then take out the clamping block, and then the bundling steel belt can be taken out.

[0013] Further, two limiting frames are fixedly connected to the surface of the second end plate. The bundling steel belt passes through the limiting frames and is slidably connected with the limiting frames;

[0014] Through the above technical solution, by providing limiting frames on the second end plate and slidably connecting them with the bundling steel belt, the overall stability and bundling effect of the module are further enhanced, which is not only convenient for installation and adjustment, but also can effectively prevent the bundling steel belt from shifting under vibration or impact.

[0015] Further, a plurality of tooth grooves are formed at one ends of the two bundling steel belts. Two support plates are fixedly connected to the surface of the first end plate. Threaded columns are rotatably connected to the surfaces of the two support plates. The tooth grooves correspond to the thread teeth on the threaded columns. Through holes are formed inside the support plates. One end of the bundling steel belt penetrates through the through holes and is slidably connected to the through holes.

[0016] Through the above technical solution, during use, the bundling steel belt is pushed so that the tooth groove part thereof is initially in contact with the thread teeth of the threaded column. Then, the threaded column is rotated so that the thread teeth thereof are gradually engaged with the tooth grooves. As the threaded column rotates, the bundling steel belt will be gradually tightened and move towards the first end plate. If it is necessary to loosen or disassemble the bundling steel belt, the threaded column is rotated in the reverse direction to gradually disengage the thread teeth from the tooth grooves. Once the threaded column is completely disengaged from the tooth grooves, the bundling steel belt can be withdrawn from the through holes.

[0017] Further, each of the two connection modules includes a connection seat. Two moving blocks are slidably connected to the lower end of the connection seat. A sliding groove is formed inside the connection seat. A wedge-shaped block is slidably connected to the inside of the sliding groove. The two inclined surfaces of the wedge-shaped block are respectively abutted against the two moving blocks. The two moving blocks both extend into the installation holes.

[0018] Through the above technical solution, when the wedge-shaped block moves, its two inclined surfaces will respectively contact the two moving blocks and apply a horizontal thrust. Under the action of the inclined surfaces of the wedge-shaped block, the two moving blocks will horizontally move in opposite directions and gradually extend into the installation holes to make close contact with the inner walls of the installation holes, forming a firm connection.

[0019] Further, a placement groove is formed inside the connection seat at a position corresponding to the sliding groove. A cover plate is slidably connected to the inside of the placement groove. The cover plate is threadedly connected to the connection seat by screws. A second bolt is threadedly connected to the middle of the cover plate. The lower end of the second bolt abuts against the upper end of the wedge-shaped block.

[0020] Through the above technical solution, during use, the second bolt is rotated to move it downward. The lower end of the second bolt will push the wedge-shaped block to slide downward in the sliding groove.

[0021] Further, a connection groove is formed inside the connection seat. A conductive belt is fixedly connected to the inside of the connection groove. Third bolts are threadedly connected to the inside of the connection seat at positions corresponding to the connection groove. The lower ends of the two third bolts both extend into the connection groove.

[0022] Through the above technical solution, when the third bolt is rotated during use, the third bolt will move towards the inside of the connection groove.

[0023] Further, each of the multiple batteries includes two electrodes, namely a positive electrode and a negative electrode. The electrodes of two adjacent batteries among the multiple batteries are arranged in reverse order of positive and negative. A first conductive sheet is commonly connected between the positive and negative electrodes of every two adjacent batteries among the multiple batteries. Second conductive sheets are fixedly connected to the surfaces of the negative electrode of the battery close to the first end plate and the positive electrode of the battery close to the second end plate among the multiple batteries. The second conductive sheets extend into the connection groove and are in contact with the conductive belt. The second conductive sheets are located between the third bolt and the conductive belt.

[0024] Through the above technical solution, a first conductive sheet is commonly connected between the positive and negative electrodes of every two adjacent batteries for realizing the series connection between the batteries. Rotating the third bolt to press its lower end against the second conductive sheet can ensure the tight and reliable contact between the second conductive sheet and the conductive belt.

[0025] 3. Beneficial effects

[0026] The present invention provides a lithium battery bundling module structure, which has the following beneficial effects:

[0027] 1. The present invention provides a lithium battery bundling module structure. By providing a first buffer sheet and a second buffer sheet made of rubber material, rubber has good elasticity and buffering performance during the use of the battery module, which can effectively absorb vibration and impact, reduce the collision and damage between the batteries, thereby improving the service life of the batteries and reducing the subsequent maintenance cost at the same time. By providing a heat conducting sheet between two adjacent batteries, the heat conducting sheet is in contact with the surface of the battery, and is fixedly connected to the heat sink at the same time. During the use of the battery, the heat conducting sheet can effectively conduct the temperature generated during the use of the battery to the heat sink, and then quickly dissipate it through the heat sink, enhancing the heat dissipation effect of the whole module and ensuring that the battery maintains an appropriate temperature during operation.

[0028] 2. The present invention provides a lithium battery bundling module structure. By providing a threaded post corresponding to the tooth groove, the tightness of the bundling steel belt can be adjusted by rotating the threaded post during use, thereby adjusting the bundling degree of the battery. At the same time, using the bundling steel belt, the high strength and rigidity of the steel belt can effectively enhance the overall structural stability of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the overall structural schematic diagram of the present invention;

[0030] Figure 2 is the installation structural schematic diagram of the first conductive sheet of the present invention;

[0031] Figure 3 is the installation structural schematic diagram of the limiting frame of the present invention;

[0032] Figure 4 Schematic diagram of the second buffer pad mounting structure of the present invention;

[0033] Figure 5 Schematic diagram of the connection structure between the heat conducting sheet and the heat sink of the present invention;

[0034] Figure 6 is Figure 1 Enlarged view of the structure at A in

[0035] Figure 7 is Figure 2 Enlarged view of the structure at B in

[0036] Figure 8 is Figure 3 Enlarged view of the structure at C in

[0037] Figure 9 is Figure 4 Enlarged view of the structure at D in

[0038] Figure 10 is Figure 2 Enlarged view of the structure at E in

[0039] Wherein, 1. End plate module; 101. First end plate; 102. Second end plate; 103. Mounting hole;

[0040] 2. Strapping module; 201. Mounting block; 202. Mounting groove; 203. Clamping block; 204. First bolt; 205. Strapping steel belt; 206. Clamping groove; 207. Support plate; 208. Threaded post; 209. Through hole; 210. Limiting frame; 211. Tooth groove;

[0041] 3. Connection module; 301. Connection seat; 302. Sliding groove; 303. Wedge block; 304. Cover plate; 305. Second bolt; 306. Moving block; 307. Placing groove; 308. Connection groove; 309. Conductive belt; 310. Third bolt;

[0042] 4. Battery; 401. Electrode; 401a. Positive electrode; 401b. Negative electrode; 402. First conductive sheet; 403. Second conductive sheet; 5. Heat conducting sheet; 6. Heat sink; 7. First buffer sheet; 8. Second buffer sheet. Specific embodiments

[0043] Next, the technical solutions in the specific embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the specific embodiments of the present invention. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, rather than all the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Specific Embodiment 1:

[0045] As Figures 1-10 shown, the specific embodiment of the present invention provides a lithium battery bundling module structure, which includes an end plate module 1, a connection module 3, and a plurality of batteries 4. The end plate module 1 includes a first end plate 101 and a second end plate 102. A plurality of mounting holes 103 are provided inside both the first end plate 101 and the second end plate 102. Second buffer sheets 8 are fixedly connected to the opposite sides of the first end plate 101 and the second end plate 102. A plurality of batteries 4 are all located between the first end plate 101 and the second end plate 102. Two heat conducting sheets 5 are placed inside the gaps between the plurality of batteries 4. The surfaces of the two heat conducting sheets 5 in the same gap are respectively abutted against the surfaces of the corresponding batteries 4. A first buffer sheet 7 is placed between every two heat conducting sheets 5 in the same gap. Heat dissipation fins 6 are fixedly connected to both sides of the plurality of heat conducting sheets 5. The first buffer sheet 7 and the second buffer sheet 8 are both made of rubber materials;

[0046] Two bundling modules 2 are provided on one side of the surface of the first end plate 101. The bundling module 2 includes a mounting block 201 fixed on the surface of the first end plate 101. An installation groove 202 is provided inside the mounting block 201. A clamping block 203 is slidably connected to the installation groove 202. One end of the clamping block 203 is threadedly connected with a first bolt 204. A bundling steel strip 205 is slidably connected inside the installation groove 202. A clamping groove 206 is provided at the end of the bundling steel strip 205 extending into the installation groove 202. The clamping block 203 extends into the clamping groove 206 and is slidably connected with the clamping groove 206. During use, after placing the bundling steel strip 205 inside the installation groove 202, align the clamping block 203 with the position of the clamping groove 206 and install it inside the installation groove 202 to ensure that the clamping block 203 enters the clamping groove 206. Then, screw the first bolt 204 into the clamping block 203 to fix the bundling steel strip 205. When disassembling, only need to unscrew the first bolt 204, then take out the clamping block 203, and then the bundling steel strip 205 can be taken out;

[0047] Two limiting frames 210 are fixedly connected to the surface of the second end plate 102. The bundling steel belt 205 passes through the limiting frames 210 and is slidably connected with the limiting frames 210. By arranging the limiting frames 210 on the second end plate 102 and slidably connecting them with the bundling steel belt 205, the overall stability of the module and the bundling effect are further enhanced. It is not only convenient for installation and adjustment, but also can effectively prevent the bundling steel belt 205 from shifting under vibration or impact. A plurality of tooth grooves 211 are formed at one end of each of the two bundling steel belts 205. Two support plates 207 are fixedly connected to the surface of the first end plate 101. Threaded columns 208 are rotatably connected to the surfaces of the two support plates 207. The tooth grooves 211 correspond to the thread teeth on the threaded columns 208. Through holes 209 are formed inside the support plates 207. One end of the bundling steel belt 205 passes through the through holes 209 and is slidably connected with the through holes 209. During use, the bundling steel belt 205 is pushed to make the tooth groove 211 part thereof initially contact with the thread teeth of the threaded column 208, and then the threaded column 208 is rotated to gradually mesh the thread teeth with the tooth grooves 211. As the threaded column 208 rotates, the bundling steel belt 205 will be gradually tightened and move towards the first end plate 101. If it is necessary to loosen or disassemble the bundling steel belt 205, the threaded column 208 is rotated in the reverse direction to gradually disengage the thread teeth from the tooth grooves 211. Once the threaded column 208 is completely disengaged from the tooth grooves 211, the bundling steel belt 205 can be withdrawn from the through holes 209;

[0048] Each of the two connecting modules 3 includes a connecting seat 301. Two moving blocks 306 are slidably connected to the lower end of the connecting seat 301. A sliding groove 302 is formed inside the connecting seat 301. A wedge-shaped block 303 is slidably connected inside the sliding groove 302. The two inclined surfaces of the wedge-shaped block 303 are respectively abutted against the two moving blocks 306. Both of the two moving blocks 306 extend into the installation hole 103. When the wedge-shaped block 303 moves, its two inclined surfaces will respectively contact the two moving blocks 306 and apply a horizontal thrust. Under the action of the inclined surfaces of the wedge-shaped block 303, the two moving blocks 306 will horizontally move in opposite directions and gradually extend into the installation hole 103 to closely contact the inner wall of the installation hole 103, forming a firm connection. A placement groove 307 is formed at a position inside the connecting seat 301 corresponding to the sliding groove 302. A cover plate 304 is slidably connected inside the placement groove 307. The cover plate 304 is threadedly connected to the connecting seat 301 by screws. A second bolt 305 is threadedly connected to the middle of the cover plate 304. The lower end of the second bolt 305 abuts against the upper end of the wedge-shaped block 303. During use, the second bolt 305 is rotated to move it downward, and the lower end of the second bolt 305 will push the wedge-shaped block 303 to slide downward in the sliding groove 302;

[0049] A connecting groove 308 is provided inside the connecting base 301, and a conductive belt 309 is fixedly connected inside the connecting groove 308. A third bolt 310 is threadedly connected to the position inside the connecting base 301 corresponding to the connecting groove 308. The lower ends of the two third bolts 310 extend into the connecting groove 308. When in use, rotating the third bolts 310 will cause the third bolts 310 to move toward the inside of the connecting groove 308. Multiple batteries 4 include positive and negative electrodes 401, wherein the electrodes include a positive electrode 401a and a negative electrode 401b. At the same time, the positive and negative electrodes 401 of two adjacent batteries 4 in the multiple batteries 4 are arranged upside down, and the positive and negative electrodes 401 of every two adjacent batteries 4 in the multiple batteries 4 are commonly connected with a first conductive sheet 402. The negative electrode 401b of the battery 4 close to the first end plate 101 and the positive electrode 401a of the battery 4 close to the second end plate 102 in the multiple batteries 4 are fixedly connected with the second conductive sheet 403 on the surface, and the second conductive sheet 403 extends into the connecting groove 308 and contacts with the conductive belt 309. The second conductive sheet 403 is located between the third bolt 310 and the conductive belt 309. The first conductive sheet 402 is commonly connected between the positive and negative electrodes 401 of every two adjacent batteries 4 to realize the series connection between the batteries 4. The third bolt 310 is rotated so that its lower end presses the second conductive sheet 403, which can ensure that the contact between the second conductive sheet 403 and the conductive belt 309 is tight and reliable.

[0050] In this embodiment, two heat conducting sheets 5 are placed in the gap between every two adjacent batteries 4. The heat conducting sheets 5 are in close contact with the battery surface. Heat sinks 6 are fixedly connected to both sides of the heat conducting sheets 5. The heat sinks 6 quickly dissipate the heat conducted by the heat conducting sheets 5 to the external environment. The heat conducting sheets 5 are in close contact with the battery surface, and can quickly conduct the heat generated when the battery is working to the heat sink 6. The heat sink 6 has a large surface area and good thermal conductivity, and can quickly dissipate the heat to the external environment to avoid heat accumulation. Through efficient heat dissipation design, it is ensured that the battery 4 maintains a suitable temperature when working to avoid overheating. The performance degradation or thermal runaway problems caused by this can be avoided. At the same time, the suitable working temperature can significantly extend the service life of the battery 4 and improve the reliability of the module. By setting the threaded column 208, the threaded column 208 corresponds to the tooth groove 211. During use, the tightness of the bundling steel belt 205 can be adjusted by rotating the threaded column 208, thereby adjusting the bundling degree of the battery 4. At the same time, the high strength and rigidity of the bundling steel belt 205 can effectively enhance the overall structural stability of the module, and can try to avoid disintegration due to aging during long-term use, thereby further improving the service life of the battery module.

[0051] Working principle: Arrange multiple batteries 4 in a way that the positive and negative electrodes 401 are arranged in reverse, ensuring that the positive and negative electrodes 401 of adjacent batteries 4 face each other. Place two heat-conducting sheets 5 in the gaps between every two adjacent batteries 4, making their surfaces contact the surfaces of the batteries 4 respectively. Place a first buffer sheet 7 between the two heat-conducting sheets 5 for buffering and shock absorption. Fix and connect heat sinks 6 on both sides of the heat-conducting sheets 5 to ensure that the heat sinks 6 are in close contact with the heat-conducting sheets 5. Use a first conductive sheet 402 to connect the positive and negative electrodes 401 of every two adjacent batteries 4 to achieve the series connection of the batteries 4. Connect second conductive sheets 403 to the surfaces of the negative electrode 401b of the battery 4 near the first end plate 101 and the positive electrode 401a of the battery 4 near the second end plate 102 respectively. Place the first end plate 101 and the second end plate 102 at both ends of the module, ensuring that the second buffer sheet 8 contacts the surface of the battery 4. Pass the bundling steel strip 205 through the limiting frame 210 and extend it into the installation groove 202. Align the clamping block 203 with the position of the clamping groove 206 and insert it into the installation groove 202 to ensure that the clamping block 203 is slidably connected to the clamping groove 206. Use a first bolt 204 to fix the clamping block 203 inside the installation groove 202 to complete the fixation of the bundling steel strip 205. Rotate the threaded column 208 so that its thread teeth engage with the tooth groove 211 of the bundling steel strip 205. As the threaded column 208 rotates, the bundling steel strip 205 will be gradually tightened and move towards the first end plate 101 to ensure uniform bundling force of the module. Align the connecting seat 301 with the installation hole 103 of the end plate module 1 and initially insert it. Push the wedge block 303 to slide downward in the sliding groove 302, pushing the two moving blocks 306 to move horizontally in opposite directions and extend into the installation hole 103 to form a firm connection. Rotate the second bolt 305 so that its lower end contacts the upper end of the wedge block 303 to further press the wedge block 303 to ensure the stability of the connection module 3. Extend the second conductive sheet 403 into the connection groove 308 and contact the conductive strip 309. Rotate the third bolt 310 so that its lower end presses the second conductive sheet 403 to ensure the reliability of the electrical connection.

[0052] Although specific embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these specific embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery bundling module structure, comprising an end plate module (1), a connection module (3), and a plurality of batteries (4), characterized in that: The end plate module (1) comprises a first end plate (101) and a second end plate (102); the first end plate (101) and the second end plate (102) are each provided with a plurality of mounting holes (103) therein; a second buffer sheet (8) is fixedly connected to opposite sides of the first end plate (101) and the second end plate (102); and the plurality of batteries (4) are each located between the first end plate (101) and the second end plate (102); Two heat conducting sheets (5) are placed inside the gaps between the plurality of batteries (4); the surfaces of the two heat conducting sheets (5) in the same gap are respectively in contact with the surfaces of the corresponding batteries (4); a first buffer sheet (7) is placed between each two heat conducting sheets (5) in the same gap; both sides of the plurality of heat conducting sheets (5) are commonly and fixedly connected with heat sinks (6); the first buffer sheet (7) and the second buffer sheet (8) are both made of rubber material; Two strapping modules (2) are arranged on one side of the surface of the first end plate (101), the strapping module (2) comprising a mounting block (201) fixed on the surface of the first end plate (101), a mounting groove (202) being provided inside the mounting block (201), a clamping block (203) being slidably connected to the mounting groove (202), a first bolt (204) being threadedly connected to one end of the clamping block (203), a strapping steel belt (205) being slidably connected inside the mounting groove (202), a clamping groove (206) being provided at one end of the strapping steel belt (205) extending into the mounting groove (202), the clamping block (203) extending into the clamping groove (206) and being slidably connected to the clamping groove (206); Two limit frames (210) are fixedly connected to the surface of the second end plate (102), and the binding steel belt (205) passes through the limit frames (210) and is slidably connected to the limit frames (210); The two connection modules (3) each comprise a connection seat (301), the lower end of the connection seat (301) being slidably connected to two moving blocks (306), a sliding groove (302) being provided inside the connection seat (301), a wedge block (303) being slidably connected inside the sliding groove (302), two inclined surfaces of the wedge block (303) respectively abutting against the two moving blocks (306), and the two moving blocks (306) both extending into the interior of the mounting hole (103).

2. A lithium battery bundling module structure according to claim 1, characterized in that: A plurality of tooth grooves (211) are provided at one end of the two strapping steel straps (205); the first end plate (101) is fixedly connected to two support plates (207) on its surface; threaded columns (208) are rotatably connected to the surfaces of the two support plates (207); the tooth grooves (211) correspond to the thread teeth on the threaded columns (208); a through hole (209) is provided inside the support plate (207); one end of the strapping steel strap (205) passes through the through hole (209) and is slidably connected to the through hole (209).

3. A lithium battery bundling module structure according to claim 1, characterized in that: A placement groove (307) is provided at a position inside the connection seat (301) corresponding to the sliding groove (302), a cover plate (304) is slidably connected inside the placement groove (307), the cover plate (304) is threadedly connected to the connection seat (301) via screws, a second bolt (305) is threadedly connected to the middle of the cover plate (304), and the lower end of the second bolt (305) is in contact with the upper end of the wedge block (303).

4. A lithium battery bundling module structure according to claim 1, characterized in that: A connecting groove (308) is provided inside the connecting seat (301), a conductive belt (309) is fixedly connected inside the connecting groove (308), a third bolt (310) is threadedly connected at a position inside the connecting seat (301) corresponding to the connecting groove (308), and the lower ends of the two third bolts (310) extend into the connecting groove (308).

5. A lithium battery bundling module structure according to claim 4, characterized in that: The plurality of batteries (4) each comprises a positive electrode (401), a negative electrode (401), the positive and negative electrodes (401) in two adjacent batteries (4) in the plurality of batteries (4) are arranged in reverse order, a first conductive sheet (402) is commonly connected between the positive and negative electrodes (401) in every two adjacent batteries (4) in the plurality of batteries (4), a second conductive sheet (403) is fixedly connected to the surface of the negative electrode (401) in the battery (4) close to the first end plate (101) and the positive electrode (401) in the battery (4) close to the second end plate (102) in the plurality of batteries (4), the second conductive sheet (403) extends into the interior of the connection slot (308) and contacts the conductive strip (309), and the second conductive sheet (403) is located between the third bolt (310) and the conductive strip (309).

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