Puncture-resistant pouch battery module

Abstract

The utility model discloses puncture -resistant soft -pack battery module belongs to battery technical field, including soft -pack battery core, the upper fixed joint of soft -pack battery core has epoxy plate ear support assembly, the upper connection of epoxy plate ear support assembly has a plurality of connecting copper row, and the central position mounting of connecting copper row has two bolt assemblies, and the outside of soft -pack battery core is provided with isolation drying device, and the below of isolation drying device is provided with buffer damping device, the utility model discloses through setting isolation drying device, so that staff can need time through the cooperation of bidirectional screw rod and moving frame etc. Structure to soft -pack battery core etc. Structure carries out certain protection, thereby reduced the possibility that the puncture damage phenomenon occurs, and staff can need time through the cooperation of silica gel drier and fixed net etc. Structure to soft -pack battery core etc. Surrounding dry processing, thereby prevent the occurrence of the phenomenon of damp damage, and then improve the work capacity of module.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically relating to a puncture-resistant soft-pack battery module. Background Technology

[0002] A battery is a device that converts chemical energy into electrical energy. It contains an electrolyte solution and metal electrodes, forming a cup, tank, or other container or composite container that generates an electric current. It has a positive and a negative electrode. With technological advancements, the term "battery" now generally refers to any small device that generates electrical energy, such as a solar cell. The main performance parameters of a battery include electromotive force, capacity, specific energy, and resistance.

[0003] Existing soft-pack battery modules are prone to puncture damage and moisture damage, which reduces the module's working capacity. Furthermore, the connecting wires and other structures are prone to loosening and falling off due to external vibrations, further reducing the module's practicality. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a puncture-resistant soft-pack battery module with high performance and strong practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a puncture-resistant soft-pack battery module, including a soft-pack battery cell, an epoxy plate tab support assembly fixedly connected to the top of the soft-pack battery cell, multiple connecting copper busbars connected to the top of the epoxy plate tab support assembly, two bolt assemblies installed near the center of the connecting copper busbars, an isolation and drying device provided on the outside of the soft-pack battery cell, and a buffer and shock absorption device provided below the isolation and drying device;

[0006] The isolation drying device includes a support base, which is located below the soft-pack battery cell. A heat exchange copper plate is fixedly connected between the soft-pack battery cell and the support base. A bidirectional lead screw is mounted on the support base near the center via a bearing. Two isolation covers are provided on the outer side of the soft-pack battery cell and epoxy plate tab support assembly. A movable frame is fixedly connected below the isolation covers and located outside the bidirectional lead screw. Drying components are fixedly connected to both sides of the two isolation covers that are far apart from each other.

[0007] Preferably, the inner bottom surface of the support base and the outer bottom surface of the movable frame are in contact with each other.

[0008] Preferably, elastic rubber strips are fixedly connected to both adjacent sides of the two isolation covers.

[0009] Preferably, the drying assembly includes a connecting box, with the connecting box fixedly connected to both sides of the two isolation covers that are far apart from each other. A fixing mesh is fixedly connected to the inside of the connecting box, and silica gel desiccant is filled on the inside of the connecting box and at the position on the side of the fixing mesh away from the soft-pack battery cell.

[0010] Preferably, a plugging block is threadedly installed on the side of the connector box away from the pouch cell.

[0011] Preferably, the buffer and shock absorption device includes a threaded sleeve, a threaded sleeve is provided below the support base, a base plate is provided below the threaded sleeve, an elastic rubber ring is fixedly connected between the threaded sleeve and the base plate, and a damper is fixedly connected between the threaded sleeve and the base plate and at a position inside the elastic rubber ring.

[0012] Preferably, a threaded block is fixedly installed below the support base and inside the threaded sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting up an isolation and drying device, enables workers to protect the soft-pack battery cells and other structures when needed through the cooperation of bidirectional lead screws and moving frames, thereby reducing the possibility of puncture damage. Furthermore, workers can dry the area around the soft-pack battery cells and other structures when needed through the cooperation of silica gel desiccant and fixing nets, thereby preventing moisture damage and improving the module's working capacity.

[0015] 2. By setting up a buffer and shock absorption device, this utility model enables workers to buffer external vibrations when needed through the cooperation of dampers and elastic rubber rings, thereby reducing the possibility of loosening and falling off of connected wires and other structures due to external vibrations, and thus improving the practicality of the module. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a three-dimensional sectional view of the present invention;

[0018] Figure 3 This is a three-dimensional sectional view of the isolation and drying device of this utility model;

[0019] Figure 4 This is a three-dimensional sectional view of the buffer and shock absorption device of this utility model.

[0020] In the diagram: 1. Soft-pack battery cell; 2. Epoxy plate tab support assembly; 3. Connecting copper busbar; 4. Bolt assembly; 5. Isolation and drying device; 51. Support base; 52. Heat exchange copper plate; 53. Bidirectional lead screw; 54. Moving frame; 55. Drying assembly; 551. Fixing mesh; 552. Silica gel desiccant; 553. Blocking block; 554. Connecting box; 56. Isolation cover; 57. Elastic rubber strip; 6. Buffer and shock absorption device; 61. Threaded block; 62. Threaded sleeve; 63. Base plate; 64. Damper; 65. Elastic rubber ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-4 The present invention provides the following technical solution: a puncture-resistant soft-pack battery module, including a soft-pack battery cell 1, an epoxy plate tab bracket assembly 2 fixedly connected to the top of the soft-pack battery cell 1, a plurality of connecting copper busbars 3 connected to the top of the epoxy plate tab bracket assembly 2, two bolt assemblies 4 installed near the center of the connecting copper busbars 3, an isolation drying device 5 provided on the outside of the soft-pack battery cell 1, and a buffer shock absorption device 6 provided below the isolation drying device 5;

[0024] The isolation drying device 5 includes a support base 51. The support base 51 is located below the soft-pack battery cell 1. A heat exchange copper plate 52 is fixedly connected between the soft-pack battery cell 1 and the support base 51. A bidirectional lead screw 53 is mounted on the support base 51 near the center via a bearing. Two isolation covers 56 are provided on the outside of the soft-pack battery cell 1 and the epoxy plate tab support assembly 2. A movable frame 54 is fixedly connected below the isolation covers 56 and located outside the bidirectional lead screw 53. Drying components 55 are fixedly connected to both sides of the two isolation covers 56 that are far apart from each other.

[0025] Specifically, the inner bottom surface of the support base 51 and the outer bottom surface of the movable frame 54 are in contact with each other.

[0026] By adopting the above technical solution, the module can limit the movement of the movable frame 54 through the support base 51, thereby preventing the movable frame 54 from deviating during the movement and ensuring the normal operation of the work.

[0027] Specifically, elastic rubber strips 57 are fixedly connected to the two adjacent sides of the two isolation shields 56.

[0028] By adopting the above technical solution, the module can seal around the connected wires through the elastic deformation of the two elastic rubber strips 57, thereby preventing gaps between the isolation cover 56 and the connected wires and better meeting the needs of protection work.

[0029] Specifically, the drying assembly 55 includes a connecting box 554. The connecting box 554 is fixedly connected to both sides of the two isolation covers 56 that are far apart from each other. A fixing net 551 is fixedly connected to the inside of the connecting box 554. Silica gel desiccant 552 is filled inside the connecting box 554 and on the side of the fixing net 551 that is far away from the soft-pack battery cell 1.

[0030] By adopting the above technical solution, staff can dry the area around the soft-pack battery cell 1 and other structures when needed by using the combination of silica gel desiccant 552 and fixing net 551, thereby preventing moisture damage.

[0031] Specifically, a plug block 553 is threadedly installed on the side of the connector box 554 away from the soft-pack battery cell 1.

[0032] By adopting the above technical solution, staff can unscrew the plug 553 to replace the silica gel desiccant 552 when needed, thereby reducing the difficulty of replacing the silica gel desiccant 552 and alleviating the workload of staff.

[0033] In this embodiment, when the soft-pack battery module needs to be used, the operator rotates the bidirectional lead screw 53 in the isolation and drying device 5. The bidirectional lead screw 53 is threadedly connected to the two movable frames 54, and the outer bottom surfaces of the two movable frames 54 are in contact with the inner bottom surfaces of the support base 51. Therefore, the bidirectional lead screw 53 drives the two movable frames 54 to move, which in turn drives the two isolation covers 56 and their elastic rubber strips 57 and other structures to move. The soft-pack battery cell 1 is no longer sealed. The operator connects the wires to the connecting copper busbars 3 on the epoxy board tab bracket assembly 2 using the bolt assembly 4, and then rotates the bidirectional lead screw 53 in the opposite direction, thereby driving the two isolation covers 56. The elastic rubber strips 57 and other structures move to seal the area around the soft-pack battery cell 1. The two elastic rubber strips 57 adhere tightly to the wire through elastic deformation, thus preventing gaps. The soft-pack battery cell 1 can then be used. It can exchange heat with the outside through the heat exchange copper plate 52, thus preventing overheating damage. During use, the moisture around the soft-pack battery cell 1 and other structures will gradually pass through the two fixing meshes 551 in the two drying components 55 and be absorbed by the silica gel desiccant 552 in the two connecting boxes 554, thus preventing moisture. When necessary, the operator can unscrew the plug 553 to replace the silica gel desiccant 552.

[0034] Example 2

[0035] The difference between this embodiment and embodiment 1 is that the buffer and shock absorption device 6 includes a threaded sleeve 62, the threaded sleeve 62 is provided below the support base 51, the bottom plate 63 is provided below the threaded sleeve 62, an elastic rubber ring 65 is fixedly connected between the threaded sleeve 62 and the bottom plate 63, and a damper 64 is fixedly connected between the threaded sleeve 62 and the bottom plate 63 and located inside the elastic rubber ring 65.

[0036] By adopting the above technical solution, staff can buffer external vibrations when needed through the cooperation of structures such as damper 64 and elastic rubber ring 65, thereby reducing the possibility of connected wires and other structures becoming loose or falling off due to external vibrations.

[0037] Specifically, a threaded block 61 is fixedly installed below the support base 51 and inside the threaded sleeve 62.

[0038] By adopting the above technical solution, the staff can connect or separate the support base 51 and the threaded sleeve 62 through the threaded block 61 when needed, which facilitates the staff to install and remove the threaded sleeve 62.

[0039] In this embodiment, before use, the operator can connect the threaded sleeve 62 in the buffer and shock absorption device 6 to the threaded block 61 under the support base 51 through the thread. Then, the damper 64 and the elastic rubber ring 65 between the base plate 63 and the threaded sleeve 62 can buffer external vibrations, thereby reducing the possibility of the connected wires and other structures becoming loose and falling off due to external vibrations.

[0040] The structure and principle of the soft-pack battery cell 1, the epoxy plate tab support assembly 2 consisting of battery tabs, epoxy plate tab supports, slots and wire channels, the connecting copper busbar 3, and the bolt assembly 4 in this utility model have been disclosed in a soft-pack battery module disclosed in Chinese patent application number 202120576928.X. Its working principle is to connect the battery cell through the epoxy plate tab support, which has good strength and can support a large power battery. It is also reasonably arranged and has high space utilization. The soft-pack battery cell tabs are pressed together by the perforated copper busbar, which has low resistance and excellent conductivity. The battery cell tabs, epoxy plate tab supports, and copper busbars of the module are fixed by bolts, which makes the structure reliable and easy to disassemble.

[0041] The structure and principle of the damper 64, which consists of a cylinder, piston rod, piston, first pressure plate, second pressure plate, damping shaft, viscous fluid, first hollow screw, second hollow screw, pressure block, spring, first outer hole, first inner hole, second outer hole, second inner hole, pressure-bearing middle part, first pressure-bearing end, second pressure-bearing end, first guide part, second guide part, shaft body, direct flow channel, first head and second head, have been disclosed in the speed-adjustable damper disclosed in Chinese patent application number 202121081254.2. Its working principle is that a uniform speed shaft is set on the piston to achieve a stable damping effect, and a variable speed shaft is set on the piston, and the cross-sectional area of ​​the variable speed channel is set to be inversely proportional to the pressure value, so that when the pressure increases, the cross-sectional area of ​​the variable speed channel is smaller, the viscous fluid is more difficult to flow, and ultimately the damping effect is better.

[0042] The working principle and usage process of this utility model are as follows: When a soft-pack battery module is needed, the operator rotates the bidirectional lead screw 53 in the isolation and drying device 5. The bidirectional lead screw 53 is threadedly connected to the two movable frames 54, and the outer bottom surfaces of the two movable frames 54 are in contact with the inner bottom surfaces of the support base 51. Therefore, the bidirectional lead screw 53 drives the two movable frames 54 to move, thereby driving the two isolation covers 56 and their elastic rubber strips 57 and other structures to move. The area around the soft-pack battery cell 1 is no longer sealed. The operator connects the wires to the connecting copper busbars 3 on the epoxy board tab bracket assembly 2 using the bolt assembly 4. Then, the bidirectional lead screw 53 is rotated in the opposite direction, thereby driving the two isolation covers 56 and their elastic rubber strips 57 and other structures to move, thereby sealing the area around the soft-pack battery cell 1. The two elastic rubber strips 57 adhere tightly to the wires through elastic deformation, thus preventing... To prevent gaps from appearing, the soft-pack battery cell 1 can be used immediately. It can exchange heat with the outside through the heat exchange copper plate 52, thus preventing overheating damage. During use, the moisture around the soft-pack battery cell 1 and other structures will gradually pass through the two fixing meshes 551 in the two drying components 55 and be absorbed by the silica gel desiccant 552 in the two connecting boxes 554, thus preventing moisture. When necessary, the operator can unscrew the plug block 553 to replace the silica gel desiccant 552. Before use, the operator can connect the threaded sleeve 62 in the buffer shock absorption device 6 to the threaded block 61 under the support base 51 through the thread. Then, the damper 64 and the elastic rubber ring 65 between the base plate 63 and the threaded sleeve 62 can buffer external vibrations, thereby reducing the possibility of the connected wires and other structures becoming loose or falling off due to external vibrations.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A puncture-resistant pouch battery module, comprising a pouch cell (1), wherein an epoxy plate tab support assembly (2) is fixedly connected to the top of the pouch cell (1), and a plurality of connecting copper busbars (3) are connected to the top of the epoxy plate tab support assembly (2), and two bolt assemblies (4) are installed near the center of the connecting copper busbars (3), characterized in that: An isolation drying device (5) is provided on the outside of the soft-pack battery cell (1), and a buffer shock absorption device (6) is provided below the isolation drying device (5); The isolation drying device (5) includes a support base (51). The support base (51) is provided below the soft-pack battery cell (1). A heat exchange copper plate (52) is fixedly connected between the soft-pack battery cell (1) and the support base (51). A bidirectional lead screw (53) is installed near the center of the support base (51) through a bearing. Two isolation covers (56) are provided on the outside of the soft-pack battery cell (1) and the epoxy plate tab support assembly (2). A movable frame (54) is fixedly connected below the isolation cover (56) and outside the bidirectional lead screw (53). Drying components (55) are fixedly connected on both sides of the two isolation covers (56) that are far apart from each other.

2. The puncture-resistant soft-pack battery module according to claim 1, characterized in that: The inner bottom surface of the support base (51) and the outer bottom surface of the movable frame (54) are in contact with each other.

3. The puncture-resistant soft-pack battery module according to claim 1, characterized in that: Elastic rubber strips (57) are fixedly connected to each other on both sides of the two isolation covers (56).

4. The puncture-resistant soft-pack battery module according to claim 1, characterized in that: The drying assembly (55) includes a connecting box (554). The connecting box (554) is fixedly connected to both sides of the two isolation covers (56) that are far apart from each other. A fixing net (551) is fixedly connected to the inside of the connecting box (554). Silica gel desiccant (552) is filled on the inside of the connecting box (554) and on the side of the fixing net (551) away from the soft-pack battery cell (1).

5. The puncture-resistant soft-pack battery module according to claim 4, characterized in that: A plug (553) is threadedly installed on the side of the connector box (554) away from the soft-pack battery cell (1).

6. The puncture-resistant soft-pack battery module according to claim 1, characterized in that: The buffer and shock absorption device (6) includes a threaded sleeve (62), the threaded sleeve (62) is provided below the support base (51), the bottom plate (63) is provided below the threaded sleeve (62), an elastic rubber ring (65) is fixedly connected between the threaded sleeve (62) and the bottom plate (63), and a damper (64) is fixedly connected between the threaded sleeve (62) and the bottom plate (63) and located inside the elastic rubber ring (65).

7. The puncture-resistant soft-pack battery module according to claim 6, characterized in that: A threaded block (61) is fixedly installed below the support base (51) and inside the threaded sleeve (62).

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