Lithium battery binding module structure

Abstract

The invention provides a lithium battery binding module structure, and relates to the field of battery binding. The lithium battery binding module structure comprises an end plate module, a connecting module and a plurality of batteries, the end plate module comprises a first end plate and a second end plate, a plurality of mounting holes are formed in each of the first end plate and the second end plate, and second buffer plates are fixedly connected to the opposite sides of the first end plate and the second end plate. And the plurality of batteries are positioned between the first end plate and the second end plate. According to the battery module, the first buffer plate and the second buffer plate which are made of rubber materials are arranged, so that rubber has good elasticity and buffer performance in the use process of the battery module, vibration and impact can be absorbed, damage caused by collision between batteries is reduced, and the service life of the batteries is further prolonged; in the use process of the battery, the heat conducting fins can effectively conduct the temperature generated when the battery is used to the cooling fins, and then the temperature is rapidly dissipated through the cooling fins, so that the heat dissipation effect of the whole module is enhanced.

Description

Technical Field

[0001] The invention relates to the field of battery bundling, and in particular 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 in actual use, especially in the structural design of battery modules. How to improve their stability, safety and service life has become the focus of industry attention. Lithium battery modules will inevitably be affected by vibration and impact during transportation, installation and use. If the batteries are not firmly fixed, it may cause battery displacement, collision or even damage, which will lead to safety hazards.

[0003] Lithium battery modules need to use a bundling structure to fix multiple batteries together. Traditional bundling methods mostly use plastic straps, but these methods have the following problems: plastic straps have low strength and are easily broken due to aging or temperature changes. Therefore, a high-strength, easy-to-install and easy-to-adjust bundling structure is needed to effectively enhance the overall stability of the battery module. Summary of the invention

[0004] 1. Technical problems solved In view of the shortcomings of the prior art, the present invention provides a lithium battery bundling module structure, which solves the problem that the fixation between batteries is not firm, which may cause battery displacement, collision or even damage, thereby causing safety hazards. The lithium battery module needs 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 easily broken due to aging or temperature changes.

[0005] 2. Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A lithium battery bundling module structure, comprising an end plate module, a connection module, and a plurality of batteries, wherein the end plate module comprises a first end plate and a second end plate, wherein the first end plate and the second end plate are both provided with a plurality of mounting holes, and a second buffer sheet is fixedly connected to the first end plate and the second end plate on opposite sides, and the plurality of batteries are located between the first end plate and the second end plate; Two heat conducting sheets are placed inside the gaps between the multiple batteries, and the surfaces of the two heat conducting sheets in the same gap are respectively in contact with the corresponding battery surfaces, a first buffer sheet is placed between every two heat conducting sheets in the same gap, and heat sinks are fixedly connected to both sides of the multiple heat conducting sheets, and the first buffer sheet and the second buffer sheet are both made of rubber material; Through the above technical scheme, by arranging the first buffer sheet and the second buffer sheet made of rubber material, the rubber has good elasticity and buffering performance during the use of the battery module, can effectively absorb vibration and impact, reduce damage caused by collision between batteries, thereby improving the battery life, and reducing subsequent maintenance costs. By arranging a thermal conductive sheet between two adjacent batteries, the thermal conductive sheet is in contact with the battery surface, and the thermal conductive sheet and the heat sink are fixedly connected. During the use of the battery, the thermal conductive 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, thereby enhancing the heat dissipation effect of the entire module and ensuring that the battery maintains a suitable temperature during operation.

[0006] Further, two strapping modules are arranged on one side of the surface of the first end plate, and the strapping module comprises a mounting block fixed to the surface of the first end plate, a mounting groove is arranged inside the mounting block, a clamping block is slidably connected to the mounting groove, a first bolt is threadedly connected to one end of the clamping block, a strapping steel belt is slidably connected to the mounting groove, a clamping groove is arranged at one end of the strapping steel belt extending into the mounting groove, and the clamping block extends into the clamping groove and is slidably connected between the clamping grooves; Through the above technical solution, when in use, after placing the bundling steel strap inside the installation groove, 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 strap. When disassembling, you only need to unscrew the first bolt, then take out the clamping block, and then you can take out the bundling steel strap.

[0007] Furthermore, two limit frames are fixedly connected to the surface of the second end plate, and the strapping steel belt passes through the limit frames and is slidably connected to the limit frames; Through the above technical solution, by setting a limit frame on the second end plate and slidingly connecting it with the strapping steel belt, the overall stability and strapping effect of the module are further enhanced, which is not only convenient for installation and adjustment, but also can effectively prevent the strapping steel belt from shifting under vibration or impact.

[0008] Furthermore, a plurality of tooth grooves are provided at one end of the two strapping 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, a through hole is provided inside the support plate, and one end of the strapping steel belt passes through the through hole and is slidably connected between the through hole; Through the above technical solution, when in use, the strapping steel belt is pushed so that its groove part makes initial contact with the thread teeth of the threaded column, and then the threaded column is rotated so that the thread teeth and the groove gradually engage with each other. As the threaded column rotates, the strapping steel belt will be gradually tightened and moved toward the first end plate. If it is necessary to loosen or remove the strapping steel belt, the threaded column is rotated in the opposite direction so that the thread teeth and the groove gradually disengage. Once the threaded column is completely disengaged from the groove, the strapping steel belt can be pulled out from the through hole.

[0009] Furthermore, the two connection modules each include a connection seat, the lower end of the connection seat is slidably connected to two moving blocks, a sliding groove is provided inside the connection seat, a wedge block is slidably connected inside the sliding groove, two inclined surfaces of the wedge block are respectively abutted against between the two moving blocks, and the two moving blocks both extend into the mounting hole; Through the above technical solution, when the wedge block moves, its two inclined surfaces will contact the two moving blocks respectively and apply horizontal thrust. Under the action of the inclined surfaces of the wedge block, the two moving blocks will move horizontally in opposite directions and gradually extend into the mounting hole so that they are in close contact with the inner wall of the mounting hole, forming a firm connection.

[0010] Furthermore, a placement groove is provided in the connection seat at a position corresponding to the sliding groove, a cover plate is slidably connected in the placement groove, the cover plate is threadedly connected to the connection seat through screws, a second bolt is threadedly connected to the middle of the cover plate, and the lower end of the second bolt abuts against the upper end of the wedge block; Through the above technical solution, when in use, the second bolt is rotated to move downward, and the lower end of the second bolt pushes the wedge block to slide downward in the sliding groove.

[0011] Furthermore, a connection groove is provided inside the connection seat, a conductive belt is fixedly connected inside the connection groove, a third bolt is threadedly connected at a position inside the connection seat corresponding to the connection groove, and the lower ends of two third bolts extend into the connection groove; Through the above technical solution, rotating the third bolt during use will cause the third bolt to move toward the inside of the connecting groove.

[0012] Further, the plurality of batteries each include two positive and negative electrodes, the electrodes include a positive electrode and a negative electrode, the positive and negative electrodes in two adjacent batteries in the plurality of batteries are arranged in reverse, a first conductive sheet is commonly connected between the positive and negative electrodes in every two adjacent batteries in the plurality of batteries, a second conductive sheet is fixedly connected to the surface of the negative electrode in the battery close to the first end plate and the positive electrode in the battery close to the second end plate in the plurality of batteries, the second conductive sheet extends into the interior of the connection slot and contacts between the conductive strips, and the second conductive sheet is located between the third bolt and the conductive strip; Through the above technical solution, a first conductive sheet is commonly connected between the positive and negative electrodes of every two adjacent batteries to realize the series connection between the batteries. The third bolt is rotated so that its lower end presses the second conductive sheet to ensure that the contact between the second conductive sheet and the conductive belt is tight and reliable.

[0013] 3. Beneficial effects The present invention provides a lithium battery bundling module structure, which has the following beneficial effects: 1. The present invention provides a lithium battery bundling module structure. By arranging a first buffer sheet and a second buffer sheet made of rubber material, the rubber has good elasticity and buffering performance during the use of the battery module, can effectively absorb vibration and impact, reduce damage caused by collision between batteries, thereby increasing the battery life, and reducing subsequent maintenance costs. By arranging a heat conductive sheet between two adjacent batteries, the heat conductive sheet is in contact with the battery surface, and the heat conductive sheet is fixedly connected to the heat sink. During the use of the battery, the heat conductive 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, thereby enhancing the heat dissipation effect of the entire module and ensuring that the battery maintains a suitable temperature during operation.

[0014] 2. The present invention provides a lithium battery bundling module structure. By setting a threaded column, the threaded column corresponds to the tooth groove. During use, the tightness of the bundling steel belt can be adjusted by rotating the threaded column, thereby adjusting the bundling degree of the battery. At the same time, the bundling steel belt is used. The high strength and rigidity of the steel belt can effectively enhance the overall structural stability of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the first conductive sheet of the present invention; Figure 3 It is a schematic diagram of the installation structure of the limit frame of the present invention; Figure 4 This is a schematic diagram of the installation structure of the second buffer pad of the present invention; Figure 5 It is a schematic diagram of the connection structure of the heat conducting sheet and the heat sink of the present invention; Figure 6 for Figure 1 A magnified view of the structure at center; Figure 7 for Figure 2 A magnified view of the structure at B in the middle; Figure 8 for Figure 3 A magnified view of the structure at C in the middle; Fig. 9 for Figure 4 Enlarged view of the structure at D in the middle Fig.10 for Figure 2 Enlarged view of the structure at point E in the middle.

[0016] Wherein, 1, end plate module; 101, first end plate; 102, second end plate; 103, mounting hole; 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 column; 209, through hole; 210, limit frame; 211, tooth socket; 3. Connecting module; 301, connecting seat; 302, sliding groove; 303, wedge block; 304, cover plate; 305, second bolt; 306, moving block; 307, placement groove; 308, connecting groove; 309, conductive belt; 310, third bolt; 4. Battery; 401. Electrode; 401a. Positive electrode; 401b. Negative electrode; 402. First conductive sheet; 403. Second conductive sheet; 5. Thermal conductive sheet; 6. Heat sink; 7. First buffer sheet; 8. Second buffer sheet. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Specific implementation 1: like Figure 1-10 As shown, a specific embodiment of the present invention provides a lithium battery bundling module structure, including 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. The first end plate 101 and the second end plate 102 are both provided with a plurality of mounting holes 103. The first end plate 101 and the second end plate 102 are both fixedly connected with a second buffer sheet 8 on opposite sides. The 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 in contact with the corresponding surfaces of the batteries 4. A first buffer sheet 7 is placed between every two heat conducting sheets 5 in the same gap. The plurality of heat conducting sheets 5 are both fixedly connected with heat sinks 6 on both sides. 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 includes a mounting block 201 fixed on the surface of the first end plate 101. A mounting groove 202 is provided inside the mounting block 201. A clamping block 203 is slidably connected to the mounting groove 202. A first bolt 204 is threadedly connected to one end of the clamping block 203. A strapping steel belt 205 is slidably connected to the mounting groove 202. A clamping groove 206 is provided at one end of the strapping steel belt 205 extending into the mounting groove 202. The clamping block 203 extends into the clamping groove 206. 6 and is slidably connected with the clamping groove 206. When in use, the strapping steel belt 205 is placed inside the installation groove 202, and then the clamping block 203 is aligned with the position of the clamping groove 206 and installed inside the installation groove 202 to ensure that the clamping block 203 enters the clamping groove 206. Then, the first bolt 204 is screwed into the clamping block 203 to fix the strapping steel belt 205. When disassembling, it is only necessary to screw off the first bolt 204, and then take out the clamping block 203, and then the strapping steel belt 205 can be taken out; The second end plate 102 is fixedly connected to two limit frames 210 on the surface, and the strapping steel belt 205 passes through the limit frames 210 and is slidably connected to the limit frames 210. By arranging the limit frames 210 on the second end plate 102 and slidably connected to the strapping steel belt 205, the overall stability and strapping effect of the module are further enhanced, which is not only convenient for installation and adjustment, but also can effectively prevent the strapping steel belt 205 from displacement under vibration or impact. A plurality of tooth grooves 211 are provided at one end of the two strapping steel belts 205. Two support plates 207 are fixedly connected to the surface of the first end plate 101. The surfaces of the two support plates 207 are rotatably connected with threaded columns 208. The tooth grooves 211 correspond to the threaded teeth on the threaded columns 208. A through hole 209 is provided inside 07, and one end of the strapping steel belt 205 passes through the through hole 209 and is slidably connected with the through hole 209. When in use, the strapping steel belt 205 is pushed so that the tooth groove 211 part thereof is initially in contact with the thread teeth of the threaded column 208, and then the threaded column 208 is rotated so that the thread teeth and the tooth groove 211 are gradually meshed. As the threaded column 208 rotates, the strapping steel belt 205 will be gradually tightened and moved toward the first end plate 101. If it is necessary to loosen or remove the strapping steel belt 205, the threaded column 208 is rotated in the opposite direction so that the thread teeth and the tooth groove 211 are gradually disengaged. Once the threaded column 208 is completely disengaged from the tooth groove 211, the strapping steel belt 205 can be pulled out from the through hole 209. The two connection modules 3 each include a connection seat 301, the lower end of the connection seat 301 is slidably connected to two moving blocks 306, a sliding groove 302 is provided inside the connection seat 301, a wedge block 303 is slidably connected inside the sliding groove 302, two inclined surfaces of the wedge block 303 are respectively in contact with the two moving blocks 306, and the two moving blocks 306 are both extended into the mounting hole 103. When the wedge 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 block 303, the two moving blocks 306 will move horizontally in opposite directions, one by one. The connecting seat 301 is provided with a placement groove 307 at a position corresponding to the sliding groove 302, and a cover plate 304 is slidably connected to the placement groove 307. The cover plate 304 is threadedly connected to the connecting seat 301 through screws, and 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 block 303. When in use, the second bolt 305 is rotated to move it downward, and the lower end of the second bolt 305 pushes the wedge block 303 to slide downward in the sliding groove 302. 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.

[0019] 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.

[0020] Working principle: Arrange multiple batteries 4 in a reversed arrangement of positive and negative electrodes 401, ensure that the positive and negative electrodes 401 of adjacent batteries 4 are opposite to each other, place two heat conductive sheets 5 in the gap between every two adjacent batteries 4, and make their surfaces contact with the surface of the battery 4 respectively, place a first buffer sheet 7 between the two heat conductive sheets 5 for buffering and shock absorption, and fix heat sinks 6 on both sides of the heat conductive sheets 5 to ensure that the heat sinks 6 are in close contact with the heat conductive sheets 5, and use the first conductive sheet 402 to connect the positive and negative electrodes 401 of every two adjacent batteries 4. The second conductive sheet 403 is connected to 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. The first end plate 101 and the second end plate 102 are placed at the two ends of the module, respectively, to ensure that the second buffer sheet 8 is in contact with the surface of the battery 4. The binding steel belt 205 passes through the limit frame 210 and extends into the interior of the installation groove 202. The clamping block 203 is aligned with the position of the clamping groove 206 and inserted into the installation groove 202. The first bolt 204 is used to fix the clamping block 203 in the installation groove 202 to complete the fixation of the strapping steel belt 205. The threaded column 208 is rotated to make its thread teeth engage with the tooth groove 211 of the strapping steel belt 205. As the threaded column 208 rotates, the strapping steel belt 205 will be gradually tightened and moved toward the first end plate 101 to ensure that the strapping force of the module is uniform. The connecting seat 301 is aligned with the installation hole 103 of the end plate module 1 and initially inserted, and pushed The wedge block 303 is made to slide downward in the sliding groove 302, pushing the two moving blocks 306 to move horizontally in opposite directions and extend into the mounting hole 103 to form a firm connection. The second bolt 305 is rotated to make its lower end contact with the upper end of the wedge block 303, further pressing the wedge block 303 to ensure the stability of the connection module 3. The second conductive sheet 403 is extended into the connection groove 308 to contact with the conductive belt 309. The third bolt 310 is rotated to make its lower end press the second conductive sheet 403 to ensure the reliability of the electrical connection.

[0021] Although specific embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the specific embodiments without departing from the principles and spirit of the present invention, and that 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); 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; heat sinks (6) are fixedly connected to both sides of the plurality of heat conducting sheets (5); and the first buffer sheet (7) and the second buffer sheet (8) are both made of rubber material.

2. A lithium battery bundling module structure according to claim 1, characterized in that: Two strapping modules (2) are arranged on one side of the surface of the first end plate (101), and the strapping module (2) comprises a mounting block (201) fixed on the surface of the first end plate (101), a mounting groove (202) is provided inside the mounting block (201), a clamping block (203) is slidably connected to the mounting groove (202), one end of the clamping block (203) is threadedly connected to a first bolt (204), a strapping steel belt (205) is slidably connected inside the mounting groove (202), a clamping groove (206) is provided at one end of the strapping steel belt (205) extending into the mounting groove (202), and the clamping block (203) extends into the clamping groove (206) and is slidably connected to the clamping groove (206).

3. A lithium battery bundling module structure according to claim 2, characterized in that: Two limiting frames (210) are fixedly connected to the surface of the second end plate (102), and the binding steel belt (205) passes through the limiting frames (210) and is slidably connected to the limiting frames (210).

4. A lithium battery bundling module structure according to claim 2, characterized in that: A plurality of tooth grooves (211) are provided at one end of the two strapping steel straps (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); 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).

5. The lithium battery bundling module structure according to claim 1, characterized in that: 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).

6. A lithium battery bundling module structure according to claim 5, 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).

7. A lithium battery bundling module structure according to claim 5, 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).

8. A lithium battery bundling module structure according to claim 7, characterized in that: The plurality of batteries (4) each comprises two positive and negative electrodes (401), the electrodes (401) comprising a positive electrode (401a) and a negative electrode (401b), 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 (401b) in the battery (4) close to the first end plate (101) and the positive electrode (401a) in the battery (4) close to the second end plate (102), 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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