A modular lithium battery installation structure

Abstract

The present invention relates to the technical field of lithium batteries, and in particular to a modular lithium battery installation structure. It comprises: a positive electrode fixing frame; a negative electrode fixing frame, which is arranged opposite to the positive electrode fixing frame, and a first through hole is spaced apart on the negative electrode fixing frame and the positive electrode fixing frame; a lithium battery, which is placed between the positive electrode fixing frame and the negative electrode fixing frame, and the end of the lithium battery is aligned with the first through hole; a nickel strip, which is respectively installed inside the positive electrode fixing frame and the negative electrode fixing frame, and a second through hole corresponding to the first through hole is opened on the nickel strip and is connected; a nickel spring, which is installed inside the second through hole, and the nickel spring contacts the end of the lithium battery. The present invention can provide a method for achieving a stable connection between the nickel strip and the lithium battery electrode and wire without welding by using the positive electrode fixing frame, the negative electrode fixing frame, the nickel strip, the nickel spring and the fixing assembly in combination, thereby greatly simplifying the complex operation process required by the traditional spot welding process and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to a modular lithium battery installation structure. Background Art

[0002] With the growing global demand for environmental protection and energy storage, lithium batteries, as an efficient and clean energy storage device, have been widely used in electric vehicles, portable electronic devices, home energy storage systems and other fields. However, with the expansion of application areas, the design and installation of lithium battery packs face increasingly higher requirements, especially in improving installation efficiency and ensuring connection reliability.

[0003] A key technical challenge in existing lithium battery pack installation technology is the electrical connection between battery cells. Traditional methods typically require laying nickel strips on the electrodes of each battery cell and using a spot welding process to weld them together. This step is one of the most complex and time-consuming parts of the entire installation process. In addition, after completing the initial connection between the battery cells, the connection between the wiring and the nickel strips must be further processed. This means that the corresponding wires on the wiring must be welded to the nickel strips one by one to establish a connection with the external circuit. This multiple welding process not only increases labor costs, but can also lead to increased contact resistance due to poor welding, and even safety hazards such as short circuits. The entire installation process is complex and tedious, involving multiple manual steps, which limits production efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a modular lithium battery installation structure that can overcome the shortcomings of existing lithium battery packs, which require manual welding of nickel strips to the electrodes of each battery during installation, and also require welding the corresponding wires on the cable to the nickel strips one by one. The entire installation process is complicated and tedious, affecting production efficiency.

[0005] A modular lithium battery mounting structure includes: a positive electrode fixing frame; a negative electrode fixing frame, which is arranged opposite to the positive electrode fixing frame, and a first through hole is spaced apart on the negative electrode fixing frame and the positive electrode fixing frame; a lithium battery is placed between the positive electrode fixing frame and the negative electrode fixing frame, and the end of the lithium battery is aligned with the first through hole; a nickel strip, which is respectively installed inside the positive electrode fixing frame and the negative electrode fixing frame, and the nickel strip is provided with a second through hole corresponding to the first through hole and connected to the first through hole; a nickel spring, which is installed inside the second through hole, and the nickel spring contacts the end of the lithium battery to connect the electrode of the lithium battery and the nickel strip; a connecting component, which is arranged in the positive electrode fixing frame and the negative electrode fixing frame, and is used to connect the positive electrode fixing frame and its adjacent negative electrode fixing frame; a fixing component, which is arranged on the side of the positive electrode fixing frame and the negative electrode fixing frame, and is used to fix the corresponding wires on the cable; a stabilizing component, which is arranged on the negative electrode fixing frame, and is used to stabilize the position of the positive electrode fixing frame.

[0006] Optionally, the connecting assembly includes: a conductive block; an insulating block, which is arranged opposite to the conductive block, and both sides of the positive pole fixing frame and the negative pole fixing frame are provided with jacks for inserting the conductive block and the insulating block, and both ends of the conductive block and the insulating block are provided with notches that are compatible with the side edges of the nickel strip, and the conductive block and the insulating block are also symmetrically provided with card slots; a locking mechanism, which is arranged inside the positive pole fixing frame and the negative pole fixing frame, and is used to lock the conductive block and the insulating block inserted into the jacks.

[0007] Optionally, the locking mechanism includes: a round block, which is symmetrically connected to the inside of the positive pole fixing frame and the negative pole fixing frame respectively; a connecting spring, which is connected to the side of the round block; a magnet, which is symmetrically and slidingly connected to the inside of the positive pole fixing frame and the negative pole fixing frame respectively, and the end of the connecting spring away from the round block is connected to the magnet; a clamping block, which is connected to the side of the magnet, and the clamping block is clamped in the clamping slot.

[0008] Optionally, the fixing assembly includes: a contact plate, symmetrically connected to the two ends of the nickel strip; a connecting seat, symmetrically connected to the two sides of the positive electrode fixing frame and the negative electrode fixing frame respectively; a splint, rotatably connected to the connecting seat; a fixing block, symmetrically connected to the two sides of the positive electrode fixing frame and the negative electrode fixing frame respectively, and the fixing block is arranged opposite to the connecting seat, and a square hole is opened on the fixing block; a sliding card plate, slidably connected to the splint, and the end of the sliding card plate can pass through the square hole.

[0009] Optionally, the stabilizing assembly includes: a vertical rod, symmetrically connected to the side of the negative electrode fixing frame close to the positive electrode fixing frame, and the side of the positive electrode fixing frame close to the negative electrode fixing frame is symmetrically opened with a circular hole, and the end of the vertical rod can be inserted into the circular hole; a first rubber ring, connected to the end of the vertical rod, and the outer wall of the first rubber ring contacts the inner wall of the circular hole.

[0010] Optionally, it further includes: a sliding sleeve slidably connected to the vertical rod; and an elastic clamp connected to the outer wall of the sliding sleeve.

[0011] Optionally, the device further comprises: a second rubber ring connected to the inner wall of the sliding sleeve, and the inner wall of the second rubber ring contacts the outer wall of the vertical rod.

[0012] Optionally, it also includes: a mounting plate connected to the side of the negative electrode fixing frame, and the shape of the end of the mounting plate is adapted to the surface of the positive electrode fixing frame; a flexible pressure sensor, installed at intervals on the side of the mounting plate, and the flexible pressure sensor is in contact with the surface of the lithium battery; a controller, installed on the mounting plate, and the controller is electrically connected to the flexible pressure sensor.

[0013] The beneficial effects of the present invention are: 1. The present invention can provide a method for achieving stable connection between the nickel strip and the lithium battery electrode and wire without welding through the coordinated use of the positive electrode fixing frame, the negative electrode fixing frame, the nickel strip, the nickel spring and the fixing assembly. Specifically, when each lithium battery is placed between the positive electrode fixing frame and the negative electrode fixing frame, its end is aligned with the first through-hole and is electrically connected through direct contact with the nickel spring. The clamping plate can clamp the wire on the contact plate to achieve electrical connection between the wire and the nickel strip, thereby greatly simplifying the complex operating procedures required for the traditional spot welding process and improving production efficiency.

[0014] 2. The present invention utilizes the coordinated work between the conductive block, insulating block, jack, and locking mechanism to achieve a quick and stable electrical connection between adjacent battery rows. Specifically, when the conductive block or insulating block is inserted into the jack, the locking mechanism can automatically lock these components to ensure that they do not accidentally fall off. At the same time, it ensures that the current can be stably transmitted between different battery rows, avoiding the risk of increased resistance or short circuit due to looseness.

[0015] 3. The present invention can provide an efficient wire management solution through the coordinated use of the sliding sleeve, the elastic clamp and the second rubber ring. By clamping the wires in the elastic clamp, the wires can be prevented from being tangled. At the same time, through the functions of the mounting plate, the flexible pressure sensor and the controller, the expansion of the lithium battery can be detected in real time, and timely feedback can be given to the user through the controller to ensure the safe operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the installation of the nickel strip and nickel shrapnel of the present invention.

[0018] Figure 3 It is a schematic diagram of the specific structure of the conductive block and the insulating block of the present invention.

[0019] Figure 4 Schematic diagram of the installation of the locking mechanism of the present invention.

[0020] Figure 5 Schematic diagram of the specific structure of the locking mechanism of the present invention.

[0021] Figure 6 This is a schematic diagram of the coordination of the nickel strip, conductive block and card block of the present invention.

[0022] Figure 7 Schematic diagram of the installation of the contact plate of the present invention.

[0023] Figure 8 This is a schematic diagram of the installation of the connecting seat, clamping plate, fixing block and sliding clamping plate of the present invention.

[0024] Figure 9 It is a schematic diagram of the cooperation between the fixed block and the sliding clamping plate of the present invention.

[0025] Figure 10 Schematic diagram of the installation of the stabilizing assembly of the present invention.

[0026] Figure 11 Schematic diagram of the installation of the sliding sleeve and the elastic clamp of the present invention.

[0027] Figure 12 It is a cross-sectional view of the sliding sleeve of the present invention.

[0028] Figure 13 This is a schematic diagram of the installation of the mounting plate, flexible pressure sensor and controller of the present invention.

[0029] Markings in the accompanying drawings: 1-positive electrode fixing frame, 2-negative electrode fixing frame, 3-first through hole, 4-lithium battery, 5-nickel strip, 6-second through hole, 7-nickel spring, 8-jack, 9-conductive block, 10-insulating block, 11-notch, 12-slot, 13-round block, 14-connecting spring, 15-magnet, 16-block, 17-contact plate, 18-connecting seat, 19-clamp, 20-fixed block, 2001-square hole, 21-sliding card plate, 22-vertical rod, 23-round hole, 24-first rubber ring, 25-sleeve, 26-elastic clamp, 27-second rubber ring, 28-mounting plate, 29-flexible pressure sensor, 30-controller. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Example: A modular lithium battery installation structure, such as Figures 1-10As shown, it includes a positive electrode fixing frame 1, a negative electrode fixing frame 2, a lithium battery 4, a nickel strip 5, a nickel spring 7, a connecting component, a fixing component and a stabilizing component. The negative electrode fixing frame 2 is arranged opposite to the positive electrode fixing frame 1, and six first through holes 3 are spaced apart on the positive electrode fixing frame 1 and the negative electrode fixing frame 2. A lithium battery 4 is placed between the positive electrode fixing frame 1 and the negative electrode fixing frame 2. The positive electrode of each lithium battery 4 is aligned with each first through hole 3 on the positive electrode fixing frame 1, and the negative electrode of each lithium battery 4 is aligned with each first through hole 3 on the negative electrode fixing frame 2. Nickel strips 5 are installed inside the positive electrode fixing frame 1 and the negative electrode fixing frame 2. , and each nickel strip 5 is provided with a second through hole 6 corresponding to the first through hole 3 and connected thereto, a nickel spring 7 is installed on the inner side of each second through hole 6, and the nickel springs 7 on the upper and lower sides are respectively in contact with the positive and negative poles of the lithium battery 4 to connect the electrodes of the lithium battery 4 and the nickel strip 5, a connecting component is provided in the positive electrode fixing frame 1 and the negative electrode fixing frame 2, for connecting the positive electrode fixing frame 1 and its adjacent negative electrode fixing frame 2, the sides of the positive electrode fixing frame 1 and the negative electrode fixing frame 2 are provided with a fixing component for fixing the corresponding wires on the cable, and a stabilizing component is provided on the negative electrode fixing frame 2 for stabilizing the position of the positive electrode fixing frame 1.

[0032] like Figure 3-Figure 6 As shown, the connection assembly includes a conductive block 9, an insulating block 10 and a locking mechanism. The conductive block 9 and the insulating block 10 are arranged relative to each other, and the shape of the conductive block 9 and the insulating block 10 is cylindrical. Three jacks 8 are spaced apart on the left and right sides of the positive fixing frame 1 and the negative fixing frame 2. The left and right ends of the conductive block 9 and the insulating block 10 can be inserted into each jack 8 respectively. A notch 11 is provided on the left and right ends of the conductive block 9 and the insulating block 10. The shape of the notch 11 is adapted to the side of the nickel strip 5, and two card slots 12 are symmetrically provided on the conductive block 9 and the insulating block 10. The locking mechanism is used to lock the conductive block 9 and the insulating block 10 inserted into the jack 8 to lock the positive fixing frame 1 and connected to the adjacent negative pole fixing frame 2; the locking mechanism includes a round block 13, a connecting spring 14, a magnet 15 and a card block 16, and the left and right sides of the positive pole fixing frame 1 and the negative pole fixing frame 2 are connected with round blocks 13 at intervals, and the round blocks 13 correspond one-to-one to the socket 8. The side of the round block 13 close to the socket 8 is connected with a connecting spring 14, and the left and right sides of the positive pole fixing frame 1 and the negative pole fixing frame 2 are slidingly connected with magnets 15 at intervals, and the magnets 15 correspond one-to-one to the connecting spring 14 and are fixedly connected. The side of the magnet 15 close to the socket 8 is connected with a card block 16, and the shape of the card block 16 is adapted to the shape of the card slot 12, and the card block 16 is stuck in the card slot 12.

[0033] like Figure 7-Figure 9As shown, the fixing assembly includes a contact plate 17, a connecting seat 18, a clamping plate 19, a fixing block 20 and a sliding card plate 21. The front and rear ends of the nickel strip 5 are connected to the contact plate 17, and the contact plate 17 is made of conductive material. The front and rear left parts of the positive and negative fixing frames 1 and 2 are connected to the connecting seats 18. Each connecting seat 18 is rotatably connected to a clamping plate 19, and the clamping plates 19 correspond to the contact plates 17 one by one. The front and rear right parts of the positive and negative fixing frames 1 and 2 are connected to the fixing blocks 20, each fixing block 20 is provided with a square hole 2001, and each clamping plate 19 is slidably connected to a sliding card plate 21, and the sliding card plate 21 can slide to the right to insert its end into the square hole 2001 to limit the clamping plate 19.

[0034] like Figure 10 As shown, the stabilizing assembly includes vertical rods 22 and first rubber rings 24. Four vertical rods 22 are symmetrically connected to the side of the negative electrode fixing frame 2 close to the positive electrode fixing frame 1. Four circular holes 23 are symmetrically opened on the side of the positive electrode fixing frame 1 close to the negative electrode fixing frame 2. The circular holes 23 correspond one-to-one to the vertical rods 22, and the ends of the vertical rods 22 can be inserted into the corresponding circular holes 23. Two first rubber rings 24 are connected to the ends of each vertical rod 22. The outer wall of the first rubber ring 24 contacts the inner wall of the circular hole 23. The friction between the first rubber ring 24 and the circular hole 23 can stabilize the position between the positive electrode fixing frame 1 and the negative electrode fixing frame 2.

[0035] When a lithium battery pack needs to be assembled, first place the six lithium batteries 4 on the negative electrode fixing frame 2 respectively, and make the negative pole of the lithium battery 4 face downward so that the negative pole of the lithium battery 4 can contact the nickel spring piece 7 on the negative electrode fixing frame 2, and then place the positive electrode fixing frame 1 on the top of the lithium battery 4 so that the upper end of the vertical rod 22 can be inserted into the circular hole 23. The friction between the first rubber ring 24 and the circular hole 23 can stabilize the position of the positive electrode fixing frame 1. At this time, the positive pole of the lithium battery 4 contacts the nickel spring piece 7 on the positive electrode fixing frame 1, and the nickel spring piece 7 is squeezed by the end of the lithium battery 4 and deformed. By utilizing the elasticity of the nickel spring piece 7 itself, the nickel spring pieces 7 on the upper and lower sides can be respectively tightly attached to the positive and negative poles of the lithium battery 4, ensuring the connection between the positive and negative poles of the lithium battery 4 and the nickel strip 5. Then, a battery row is installed; the left end of the conductive block 9 can be inserted into the socket 8 on the right side of the positive fixing frame 1, and the left end of the insulating block 10 can be inserted into the socket 8 on the right side of the negative fixing frame 2, so that the left ends of the conductive block 9 and the insulating block 10 can contact the nickel strip 5 in the positive fixing frame 1 and the negative fixing frame 2 respectively, and the card blocks 16 in the positive fixing frame 1 and the negative fixing frame 2 can be respectively inserted into the card slots 12 on the conductive block 9 and the insulating block 10 through the action of the connecting spring 14 to fix the position of the conductive block 9 and the insulating block 10, and then the other battery row is rotated vertically one hundred and eighty degrees, and the two battery rows are brought close so that the right ends of the conductive block 9 and the insulating block 10 can be inserted into the positive fixing frame 1 and the negative fixing frame in the other battery row. 2, similarly, the card block 16 in the other battery row will also be stuck in the card slot 12 on the conductive block 9 and the insulating block 10, so that the connection between the two battery rows can be completed, and through the action of the conductive block 9, the nickel strips 5 located on the upper side of the two battery rows can be electrically connected. Repeat the above operation to assemble a specified number of battery rows as needed; then the clamping plate 19 can be rotated open, and the corresponding wire ends of the cable are placed on the sides of each contact plate 17, and then the clamping plate 19 is rotated closed so that the clamping plate 19 and the contact plate 17 can cooperate to clamp the wire ends. Through the conductive effect of the contact plate 17, the electrical connection between the wire and the nickel strip 5 can be ensured, and finally the sliding card plate 21 is slid to the right and inserted into the square hole 20 of the fixed block 20. 01, the clamping plate 19 can be limited by sliding the clamping plate 21 to prevent the clamping plate 19 from opening at will, so that the assembly of the lithium battery pack can be easily completed and the efficiency can be improved; when it is necessary to disassemble each battery row, only two magnetic plates with the same pole as the magnet 15 need to be placed on the side away from each other of the positive fixing frame 1 and the negative fixing frame 2. The magnetic plate can push the magnet 15 away from the conductive block 9 and the insulating block 10 through magnetic force, and the connecting spring 14 is compressed, and the magnet 15 can drive the clamping block 16 to move to disengage from the clamping slot 12 on the conductive block 9 and the insulating block 10, and then pull the two adjacent battery rows away from each other. Then remove the magnetic plate, the connecting spring 14 will return to its original state, driving the magnet 15 and the clamping block 16 to move and reset.

[0036] like Figure 11 and Figure 12 As shown, it also includes a sliding sleeve 25, an elastic clamp 26 and a second rubber ring 27. Two sliding sleeves 25 are slidably connected to each vertical rod 22, and each sliding sleeve 25 is connected to an elastic clamp 26. The elastic clamp 26 is made of rubber. The inner wall of each sliding sleeve 25 is connected to two second rubber rings 27, and the inner wall of the second rubber ring 27 contacts the outer wall of the vertical rod 22. The friction between the second rubber ring 27 and the vertical rod 22 can stabilize the position of the sliding sleeve 25 and the elastic clamp 26; when the worker clamps the end of the wire through the clamping plate 19 and the contact plate 17, the sliding sleeve 25 can be slid up and down to drive the elastic clamp 26 to move up and down to adjust the position, and then the wire can be clamped into the elastic clamp 26, and the elastic clamp 26 is used to clamp and limit each wire to prevent the wires from being messy and tangled together.

[0037] like Figure 13 As shown, it also includes a mounting plate 28, a flexible pressure sensor 29 and a controller 30. The mounting plate 28 is connected to the left side of the negative electrode fixing frame 2, and six flexible pressure sensors 29 are installed on the right side of the mounting plate 28 at intervals from front to back. The flexible pressure sensors 29 correspond to the lithium batteries 4 one by one and contact each other. The controller 30 is installed on the front side of the mounting plate 28, and the controller 30 is electrically connected to the flexible pressure sensors 29. When the lithium battery 4 is installed between the negative electrode fixing frame 2 and the positive electrode fixing frame 1, the flexible pressure sensor 29 will contact the surface of the lithium battery 4. When the lithium battery pack is installed in a certain device for use, the controller 30 can be electrically connected to the control panel of the above-mentioned device so that the flexible pressure sensor 29 can monitor the status of each lithium battery 4. When the lithium battery 4 bulges due to long-term use, the lithium battery 4 will squeeze the corresponding flexible pressure sensor 29. When the pressure detected by the flexible pressure sensor 29 is greater than the preset value, the flexible pressure sensor 29 will send a signal. After receiving the signal, the controller 30 will upload the monitoring data to the control panel of the above-mentioned device for display, reminding the staff that the lithium battery 4 needs to be replaced.

[0038] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A modular lithium battery installation structure, characterized in that: The invention comprises: a positive electrode fixing frame (1); a negative electrode fixing frame (2), which is arranged opposite to the positive electrode fixing frame (1), and a first through hole (3) is spaced apart on the negative electrode fixing frame (2) and the positive electrode fixing frame (1); a lithium battery (4), which is placed between the positive electrode fixing frame (1) and the negative electrode fixing frame (2), and the end of the lithium battery (4) is aligned with the first through hole (3); a nickel strip (5), which is respectively installed inside the positive electrode fixing frame (1) and the negative electrode fixing frame (2), and the nickel strip (5) is provided with a second through hole (6) corresponding to the first through hole (3) and connected to the nickel strip (7); a nickel spring (7), which is installed inside the second through hole (6), and the nickel spring (7) is in contact with the end of the lithium battery (4) to connect the electrode of the lithium battery (4) and the nickel strip ( 5); a connecting component, arranged in the positive fixing frame (1) and the negative fixing frame (2), for connecting the positive fixing frame (1) and its adjacent negative fixing frame (2); a fixing component, arranged on the side of the positive fixing frame (1) and the negative fixing frame (2), for fixing the corresponding wires on the cable; a stabilizing component, arranged on the negative fixing frame (2), for stabilizing the position of the positive fixing frame (1); the connecting component includes: a conductive block (9); an insulating block (10), which is arranged opposite to the conductive block (9), and both sides of the positive fixing frame (1) and the negative fixing frame (2) are provided with jacks (8) for inserting the conductive block (9) and the insulating block (10), and both ends of the conductive block (9) and the insulating block (10) are provided with nickel strips. (5) a notch (11) adapted to the side, and a card slot (12) is symmetrically opened on the conductive block (9) and the insulating block (10); a locking mechanism is arranged inside the positive fixing frame (1) and the negative fixing frame (2), and is used to lock the conductive block (9) and the insulating block (10) inserted into the jack (8); the locking mechanism includes: a round block (13), symmetrically connected to the inside of the positive fixing frame (1) and the negative fixing frame (2); a connecting spring (14), connected to the side of the round block (13); a magnet (15), symmetrically slidably connected to the inside of the positive fixing frame (1) and the negative fixing frame (2), and the end of the connecting spring (14) away from the round block (13) is connected to the magnet (15); a card block (16) , connected to the side of the magnet (15), and the card block (16) is stuck in the card slot (12); the fixing assembly includes: a contact plate (17), symmetrically connected to the two ends of the nickel strip (5); a connecting seat (18), symmetrically connected to the two sides of the positive electrode fixing frame (1) and the negative electrode fixing frame (2); a clamping plate (19), rotatably connected to the connecting seat (18); a fixing block (20), symmetrically connected to the two sides of the positive electrode fixing frame (1) and the negative electrode fixing frame (2), and the fixing block (20) is arranged opposite to the connecting seat (18), and a square hole (2001) is opened on the fixing block (20); a sliding clamping plate (21), slidably connected to the clamping plate (19), and the end of the sliding clamping plate (21) can pass through the square hole (2001);The stabilizing component includes: a vertical rod (22) symmetrically connected to the side of the negative electrode fixing frame (2) close to the positive electrode fixing frame (1), and a circular hole (23) is symmetrically opened on the side of the positive electrode fixing frame (1) close to the negative electrode fixing frame (2), and the end of the vertical rod (22) can be inserted into the circular hole (23); a first rubber ring (24) connected to the end of the vertical rod (22), and the outer wall of the first rubber ring (24) contacts the inner wall of the circular hole (23).

2. A modular lithium battery installation structure according to claim 1, characterized in that: It also includes: a sliding sleeve (25) slidably connected to the vertical rod (22); and an elastic clamp (26) connected to the outer wall of the sliding sleeve (25).

3. A modular lithium battery installation structure according to claim 2, characterized in that: It also includes: a second rubber ring (27) connected to the inner wall of the sliding sleeve (25), and the inner wall of the second rubber ring (27) is in contact with the outer wall of the vertical rod (22).

4. A modular lithium battery installation structure according to claim 3, characterized in that: The invention also includes: a mounting plate (28) connected to the side of the negative electrode fixing frame (2), and the shape of the end of the mounting plate (28) is adapted to the surface of the positive electrode fixing frame (1); a flexible pressure sensor (29) installed at intervals on the side of the mounting plate (28), and the flexible pressure sensor (29) is in contact with the surface of the lithium battery (4); and a controller (30) installed on the mounting plate (28), and the controller (30) is electrically connected to the flexible pressure sensor (29).

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