Lithium battery cell pack structure

Abstract

The utility model discloses a lithium battery cell pack structure, and particularly relates to the technical field of cell pack, the lithium battery cell pack structure comprises a shell, the top of the shell is provided with a positive and negative electrode connecting component, the bottom of the shell is provided with a plurality of uniformly distributed bottom plates, the top of each bottom plate is provided with a mounting groove and two slots, and the mounting groove is connected with the slots. A mounting groove is formed in the shell, a battery cell part is detachably connected in the mounting groove, the battery cell part is detachably connected with the bottom plates, a fixing groove is formed in the front end of each bottom plate, a sliding groove is formed in the bottom of the front end of the shell, and a sliding plate is arranged in the sliding groove in a sliding mode. According to the utility model, the battery cell parts are supported by the bottom plates for installation, the sliding plates and the fixing plates are used for fixing the plurality of bottom plates, when the battery cell parts need to be disassembled, a worker loosens the sliding plates and the fixing plates and then pulls the bottom plates to drive the battery cell parts to move out from the interior of the shell and disassemble one or more battery cell parts according to requirements, the structure is simple, the operation is convenient, and the cost is low. The mounting and dismounting are very fast, so that the maintenance efficiency of the battery cell part is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery cell packaging technology, and more specifically to a lithium battery cell packaging structure. Background Technology

[0002] Lithium-ion battery cell packing is the process of combining multiple lithium-ion battery cells together with related components to form a battery pack with specific voltage, capacity, and functions. Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become mainstream. The battery cell is the core component of the lithium-ion battery cell pack structure and the basic unit for storing and releasing electrical energy. In terms of type, battery cells are mainly divided into cylindrical cells, prismatic cells, and pouch cells.

[0003] For example, a lithium battery cell structure that is easy to assemble, disclosed in the prior art (CN220553477U), can place and fix the lithium battery cell by setting a limiting plate and limiting holes, thereby ensuring the stability of the lithium battery cell and improving the battery's lifespan and efficiency.

[0004] However, the existing technologies mentioned above still have the following problems when in use: the existing lithium battery cell packs usually assemble multiple cells together and wrap and seal them with a shell and sealing plate. When disassembling the cells for inspection and replacement, the staff can only remove all the cells together and then reinstall the intact cells. This process is time-consuming and laborious, affecting the maintenance efficiency of lithium battery cells. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a lithium battery cell packing structure. The cell unit is installed by supporting the base plate, and multiple base plates are fixed by sliding plates and fixing plates. When the cell unit needs to be disassembled, the operator loosens the sliding plates and fixing plates, and then, as needed, pulls the base plate to move the cell unit out of the casing, allowing for the disassembly of one or more cell units. The structure is simple, and the installation and disassembly are very quick, thereby improving the maintenance efficiency of the cell unit and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery cell packing structure, including a housing, a positive and negative electrode connection assembly at the top of the housing, and multiple evenly distributed base plates at the bottom of the housing. Each base plate has a mounting groove and two slots machined at its top. A battery cell is detachably connected to the mounting groove, and the battery cell is detachably connected to the base plate. A fixing groove is machined at the front end of each base plate. A sliding groove is machined at the bottom of the front end of the housing. A sliding plate is slidably mounted in the sliding groove. A fixing plate with the same number of fixing grooves is fixedly mounted at the rear end of the sliding plate. The fixing plate is inserted into the fixing groove.

[0007] In a preferred embodiment, an insulating film is provided between two adjacent battery cells. The bottom of the insulating film is inserted into a slot, and the insulating film is used to separate the adjacent battery cells, thereby preventing short circuits.

[0008] In a preferred embodiment, each base plate has a rectangular groove machined on its bottom, and a movable handle is fixed inside the rectangular groove to facilitate workers to quickly pull out the base plate, thereby improving the disassembly speed of the battery cell.

[0009] In a preferred embodiment, the positive and negative electrode connection assembly includes a positive electrode connection plate and a negative electrode connection plate that are detachably mounted on the top of the housing. The bottom of the positive electrode connection plate and the bottom of the negative electrode connection plate are both machined with the same number of grooves as the battery cell. A positive electrode sheet is fixedly disposed in each groove at the bottom of the positive electrode connection plate, and a negative electrode sheet is fixedly disposed in each groove at the bottom of the negative electrode connection plate.

[0010] In a preferred embodiment, a positive terminal is fixedly provided on the top of the positive electrode connecting plate, and the positive terminal is connected to multiple positive electrode plates through wires; a negative terminal is fixedly provided on the top of the negative electrode connecting plate, and the negative terminal is connected to multiple negative electrode plates through wires.

[0011] In a preferred embodiment, a positive electrode and a negative electrode are fixedly provided on the top of the battery cell, the positive electrode being in contact with the positive electrode plate and the negative electrode being in contact with the negative electrode plate.

[0012] In a preferred embodiment, the top and bottom sides of the housing are machined with fixing holes, and each fixing hole is provided with a fastening bolt. The housing is detachably fixed together with the slide plate, the positive electrode connection plate and the negative electrode connection plate by fastening bolts. The fastening bolts facilitate the disassembly and replacement of the slide plate and the positive and negative electrode connection components by the operator.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This utility model uses a base plate to support the installation of the battery cell, and uses a sliding plate and a fixing plate to fix multiple base plates. When the battery cell needs to be disassembled, the operator loosens the sliding plate and the fixing plate, and then pulls the base plate to move the battery cell out of the housing as needed, disassembling one or more battery cells. The structure is simple and the installation and disassembly are very quick, thereby improving the maintenance efficiency of the battery cell. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a bottom view of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the disassembly of the skateboard of this utility model.

[0018] Figure 4 This is a schematic diagram of the battery cell, the positive and negative electrode connection assembly, and the base plate of this utility model.

[0019] Figure 5 This is a cross-sectional view of the positive electrode connecting plate and the negative electrode connecting plate of this utility model.

[0020] The attached figures are labeled as follows: 1. Housing; 2. Positive and negative electrode connection assembly; 21. Positive electrode connection plate; 22. Negative electrode connection plate; 23. Groove; 24. Positive electrode sheet; 25. Negative electrode sheet; 26. Positive terminal; 27. Negative terminal; 3. Base plate; 4. Mounting groove; 5. Slot; 6. Battery cell section; 61. Positive electrode; 62. Negative electrode; 7. Fixing groove; 8. Slide groove; 9. Slide plate; 10. Fixing plate; 11. Insulating film; 12. Rectangular groove; 13. Movable handle; 14. Fixing hole; 15. Fastening bolt. 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] Refer to the instruction manual appendix Figures 1-5This utility model provides a lithium battery cell packing structure, including a housing 1. The top of the housing 1 is provided with a positive and negative electrode connection assembly 2. Specifically, the positive and negative electrode connection assembly 2 includes a positive electrode connection plate 21 and a negative electrode connection plate 22 that are detachably installed on the top of the housing 1. The bottom of the positive electrode connection plate 21 and the bottom of the negative electrode connection plate 22 are both machined with the same number of grooves 23 as the cell part 6. A positive electrode sheet 24 is fixedly provided in each groove 23 at the bottom of the positive electrode connection plate 21, and a negative electrode sheet 25 is fixedly provided in each groove 23 at the bottom of the negative electrode connection plate 22.

[0023] The bottom of the housing 1 is provided with a plurality of evenly distributed base plates 3. Each base plate 3 has a mounting groove 4 and two slots 5 machined on its top. A battery cell 6 is detachably connected in the mounting groove 4 and the battery cell 6 is detachably connected to the base plate 3. An insulating film 11 is provided between two adjacent battery cells 6, and the bottom of the insulating film 11 is inserted into the slot 5.

[0024] Each base plate 3 has a fixing groove 7 at its front end, and the bottom of the front end of the housing 1 has a sliding groove 8. A sliding plate 9 is slidably disposed in the sliding groove 8. The rear end of the sliding plate 9 is fixedly provided with a number of fixing plates 10 equal to the number of fixing grooves 7. The fixing plates 10 are inserted into the fixing grooves 7.

[0025] Each base plate 3 has a rectangular groove 12 machined at its bottom. A movable handle 13 is fixedly installed inside the rectangular groove 12. Fixing holes 14 are machined at the top and bottom of both sides of the housing 1. Each fixing hole 14 is equipped with a fastening bolt 15. The housing 1 is detachably fixed together with the slide plate 9, the positive electrode connecting plate 21 and the negative electrode connecting plate 22 by fastening bolts 15.

[0026] During the lithium battery cell assembly process, the worker first inserts the cell part 6 into the mounting slot 4 on the base plate 3, then connects the cell part 6 to the base plate 3, and then inserts multiple cell parts 6 into the grooves 23 on the positive electrode connecting plate 21 and the negative electrode connecting plate 22 in sequence. At the same time, an insulating film 11 is placed between two adjacent cell parts 6 for insulation. After that, the worker inserts the slide plate 9 into the slide groove 8 and pushes the slide plate 9 to drive the fixing plate 10 into the fixing groove 7 on the base plate 3. Finally, the worker tightens the fastening bolts 15 to firmly fix the slide plate 9 to the shell 1, thus completing the lithium battery cell assembly. When it is necessary to disassemble the cell part 6, the worker first loosens the fastening bolts 15 of the fixing slide plate 9, then pushes the slide plate 9 and the fixing plate 10 out of the fixing groove 7, so that multiple base plates 3 are loosened. Then, the worker grasps the corresponding movable handle 13 to remove the cell part 6 from the inside of the shell 1 for replacement. The structure is simple and the installation and disassembly are very quick.

[0027] In this embodiment, a positive terminal 26 is fixedly provided on the top of the positive electrode connecting plate 21. The positive terminal 26 is connected to multiple positive electrode plates 24 through wires. A negative terminal 27 is fixedly provided on the top of the negative electrode connecting plate 22. The negative terminal 27 is connected to multiple negative electrode plates 25 through wires. A positive electrode 61 and a negative electrode 62 are fixedly provided on the top of the battery cell 6. The positive electrode 61 is in contact with the positive electrode plate 24, and the negative electrode 62 is in contact with the negative electrode plate 25.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery cell packing structure, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a positive and negative electrode connection assembly (2), and the bottom of the housing (1) is provided with a plurality of evenly distributed base plates (3). Each base plate (3) has a mounting groove (4) and two slots (5) processed on its top. The mounting groove (4) is detachably connected to a battery cell (6), and the battery cell (6) is detachably connected to the base plate (3). Each base plate (3) has a fixed groove (7) at its front end. The bottom of the front end of the housing (1) has a sliding groove (8). A sliding plate (9) is slidably disposed in the sliding groove (8). The rear end of the sliding plate (9) is fixedly provided with a fixed plate (10) in the same number as the fixed groove (7). The fixed plate (10) is inserted into the fixed groove (7).

2. The lithium battery cell pack structure according to claim 1, characterized in that: An insulating film (11) is provided between two adjacent battery cells (6), and the bottom of the insulating film (11) is inserted into the slot (5).

3. The lithium battery cell pack structure according to claim 1, characterized in that: Each base plate (3) has a rectangular groove (12) machined at the bottom, and a movable handle (13) is fixedly provided inside the rectangular groove (12).

4. The lithium battery cell packing structure according to claim 1, characterized in that: The positive and negative electrode connection assembly (2) includes a positive electrode connection plate (21) and a negative electrode connection plate (22) that are detachably installed on the top of the housing (1). The bottom of the positive electrode connection plate (21) and the bottom of the negative electrode connection plate (22) are both machined with the same number of grooves (23) as the battery cell (6). A positive electrode plate (24) is fixedly provided in each groove (23) at the bottom of the positive electrode connection plate (21), and a negative electrode plate (25) is fixedly provided in each groove (23) at the bottom of the negative electrode connection plate (22).

5. A lithium battery cell pack structure according to claim 4, characterized in that: The positive electrode (26) is fixedly provided on the top of the positive electrode connecting plate (21), and the positive electrode (26) is connected to multiple positive electrode plates (24) through wires. The negative electrode (27) is fixedly provided on the top of the negative electrode connecting plate (22), and the negative electrode (27) is connected to multiple negative electrode plates (25) through wires.

6. A lithium battery cell packing structure according to claim 4, characterized in that: The top of the battery cell (6) is fixedly provided with a positive electrode (61) and a negative electrode (62). The positive electrode (61) is in contact with the positive electrode plate (24), and the negative electrode (62) is in contact with the negative electrode plate (25).

7. A lithium battery cell pack structure according to claim 4, characterized in that: The top and bottom sides of the housing (1) are all machined with fixing holes (14), and each fixing hole (14) is provided with a fastening bolt (15). The housing (1) is detachably fixed together with the slide plate (9), the positive electrode connecting plate (21) and the negative electrode connecting plate (22) by fastening bolts (15).

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