Rapid heat dissipation lithium battery tab connection structure

Abstract

This utility model relates to the field of lithium battery tab heat dissipation connection technology, and discloses a lithium battery tab connection structure for rapid heat dissipation. It includes a lithium battery body and electrode tabs disposed on its surface, and further includes: an adhesive strip disposed on the top surface of the lithium battery body, a support plate fixedly connected to the surface of the adhesive strip, a first cotton block fixedly connected to the side of the support plate, and a connecting plate disposed on the side surface of the electrode tabs. This utility model, through the cooperation of the first and second cotton blocks, enables the lithium battery tabs to remain stable during connection. The position of the second cotton block can be changed under the action of the telescopic structure and the connecting plate, thereby adapting to the length of the electrode tabs, effectively improving the adaptability of lithium battery tab connection, reducing the impact of existing connection methods on heat dissipation, improving the heat dissipation effect of lithium battery tab connection, and solving the problems of poor heat dissipation and insufficient adaptability of existing connection structures.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery tab heat dissipation connection technology, specifically a lithium battery tab connection structure for rapid heat dissipation. Background Technology

[0002] As a high-energy-density energy storage device, the reliability and heat dissipation performance of the electrode connection structure of lithium batteries directly affect the overall efficiency, lifespan and safety of the battery pack. In battery modules with multiple cells connected in series or in parallel, the electrodes are connected by welding, riveting or bolting to achieve electrical conduction, and thermal management of the connection area is the key to ensuring stable battery operation.

[0003] In lithium battery modules, multiple tabs need to be connected to conduct current. Traditional solutions often fill the tabs with insulating cotton strips to prevent short circuits. However, this design severely hinders heat dissipation. The cotton strips block the natural airflow channels between the tabs, making it difficult for internal heat to be discharged through airflow, further aggravating the heat generation problem and ultimately affecting battery life and safety. Utility Model Content

[0004] The purpose of this invention is to provide a fast heat dissipation lithium battery tab connection structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery tab connection structure for rapid heat dissipation, comprising a lithium battery body and electrode tabs disposed on its surface, and further comprising:

[0006] An adhesive strip is provided on the top surface of the lithium battery body. A support plate is fixedly connected to the surface of the adhesive strip. A first cotton block is fixedly connected to the side of the support plate. A connecting plate is provided on the side surface of the electrode tab.

[0007] A second cotton block is movable on the surface of the electrode tab. A fixing block is fixedly connected to the side surface of the connecting plate. A telescopic structure is provided at the bottom of the fixing block. A support block is fixedly connected to the side surface of the connecting plate.

[0008] Preferably, the telescopic structure includes a connecting column fixed to the bottom of the fixing block, a protrusion fixedly connected to the surface of the connecting column, a fixing column fixedly connected to one part of the surface of the support plate, and a sliding groove opened inside the fixing column.

[0009] Preferably, the adhesive strip is an insulating material, and the adhesive strip is used in conjunction with the lithium battery body and the support plate.

[0010] Preferably, the first cotton block and the second cotton block are symmetrically arranged on the same surface of the electrode tab and are used in conjunction.

[0011] Preferably, the support block has a groove inside, and a slider is slidably connected to the inner cavity of the groove. The slider is fixedly connected to the side surface of the connecting plate.

[0012] Preferably, there are several protrusions, and they are made of rubber, and the fixing post slides in the inner cavity of the sliding groove.

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

[0014] This invention, through the cooperation of the first and second cotton blocks, enables stable connection of lithium battery tabs. Simultaneously, the telescopic structure and connecting plate allow the position of the second cotton block to be adjusted to accommodate the length of the electrode tabs, effectively improving the adaptability of lithium battery tab connection. It also reduces the problem of placing cotton strips between adjacent electrode tabs, which affects heat dissipation, thus significantly improving the heat dissipation effect during lithium battery tab connection. This solves the problems of poor heat dissipation and insufficient adaptability in existing connection structures. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of a partial three-dimensional unfolded structure in this utility model;

[0018] Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention.

[0019] In the diagram: 1. Lithium battery body; 2. Electrode tabs; 3. Support plate; 4. Adhesive strip; 5. First cotton block; 6. Connecting plate; 7. Second cotton block; 8. Fixing block; 9. Telescopic structure; 91. Connecting post; 92. Protrusion; 93. Fixing post; 94. Sliding groove; 10. Support block; 11. Sliding groove; 12. Sliding block. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4As shown, the rapid heat dissipation lithium battery tab connection structure includes a lithium battery body 1, of which there are four. Electrode tabs 2 are provided on the surface of each lithium battery body 1, with one end of each tab welded to the inside of the lithium battery body 1. The electrode tabs 2 can connect the battery cell to an external circuit for conductive transmission. An adhesive strip 4 is provided on the top surface of each lithium battery body 1, and a support plate 3 is fixedly connected to the surface of the adhesive strip 4. The adhesive strip 4 is made of insulating material and works in conjunction with the lithium battery body 1 and the support plate 3. Under the action of the adhesive strip 4, the support plate 3 can be quickly bonded to the lithium battery body 1. A first cotton block 5, made of insulating material, is fixedly connected to the side of the support plate 3 on the surface of the battery body 1. The first cotton block 5 is movably connected to the surface of the electrode tab 2. A connecting plate 6 is provided on the side surface of the electrode tab 2, and a second cotton block 7 is movably connected to the surface of the electrode tab 2. The first cotton block 5 and the second cotton block 7 are symmetrically arranged on the same surface of the electrode tab 2 and work together. The positions of the first cotton block 5 and the second cotton block 7 allow for a certain gap when the lithium battery tabs are connected, thus enabling air circulation and increasing heat dissipation. There are several cotton blocks 7. The first cotton block 5 and the second cotton block 7 can support the position of the electrode tab 2, making the subsequent connection and conduction more stable. A fixing block 8 is fixedly connected to the side surface of the connecting plate 6. The bottom of the fixing block 8 is provided with a telescopic structure 9. Under the action of the telescopic structure 9, the connecting plate 6 can move the second cotton block 7 up and down, thereby changing the position of the second cotton block 7 to adapt to the length of the electrode tab 2. This effectively improves the adaptability of lithium battery tab connection and reduces the impact on the current connection method of inserting cotton strips into two adjacent electrode tabs 2. In case of heat, the heat dissipation effect of lithium battery tab connection is effectively improved. A support block 10 is fixedly connected to the side surface of the connecting plate 6. The bottom of the support block 10 is fixedly connected to the surface of the support plate 3. Under the action of the support block 10, the connecting plate 6 can be effectively supported, so that it can be more stable when moving. A sliding groove 11 is opened inside the support block 10. A slider 12 is slidably connected to the inner cavity of the sliding groove 11. The slider 12 is fixedly connected to the side surface of the connecting plate 6. Under the action of the sliding groove 11 and the slider 12, the connecting plate 6 can be more stable when displacing.

[0022] The telescopic structure 9 includes a connecting post 91 fixed to the bottom of the fixing block 8. Several protrusions 92 are fixedly connected to the surface of the connecting post 91, and the protrusions 92 are made of rubber. A fixing post 93 is fixedly connected to one side of the surface of the support plate 3. A sliding groove 94 is provided inside the fixing post 93. The fixing post 93 slides within the inner cavity of the sliding groove 94. Under the action of the sliding groove 94, the fixing post 93 has sufficient friction to limit its movement, ensuring stability during its movement. This effectively improves the stability of the telescopic structure 9 during use. The connecting post 91 and the connecting plate 6 can change the position of the second cotton block 7 to adapt to the length of the electrode tab 2, effectively improving the adaptability of the lithium battery tab connection. It also reduces the impact on heat dissipation caused by placing cotton strips into adjacent electrode tabs 2 in existing connection methods, effectively improving the heat dissipation effect during lithium battery tab connection.

[0023] It is worth noting that the technical features such as the lithium battery body 1 and electrode tabs 2 proposed in this technical solution should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in the field. This technical solution will not elaborate further.

[0024] Working principle: When connecting the lithium battery tabs, the operator uses the adhesive strip 4 to fix the support plate 3 to the surface of the lithium battery body 1. Then, the first cotton block 5 is placed in a suitable position to create a certain gap when connecting the lithium battery tabs, thereby allowing air circulation and effectively increasing heat dissipation. Next, when the operator needs to adjust the position of the second cotton block 7, the operator pulls the connecting post 91, causing the connecting post 91 to slide in the inner cavity of the sliding groove 94. This causes the connecting plate 6 to move the second cotton block 7, thereby adjusting the position of the second cotton block 7. At the same time, with the cooperation of the protrusion 92, the connecting plate 6 can be quickly limited and stabilized by the friction between the protrusion 92 and the fixing post 93 during movement, effectively improving the convenience and stability of connecting the lithium battery tabs.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] 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 lithium battery tab connecting structure with fast heat dissipation, comprising a lithium battery body (1) and an electrode tab (2) arranged on the surface of the lithium battery body (1), characterized in that, Also includes: An adhesive strip (4) is provided on the top surface of the lithium battery body (1). A support plate (3) is fixedly connected to the surface of the adhesive strip (4). A first cotton block (5) is fixedly connected to the side of the support plate (3). A connecting plate (6) is provided on the side surface of the electrode tab (2). A second cotton block (7) is movable on the surface of the electrode tab (2). A fixing block (8) is fixedly connected to the side surface of the connecting plate (6). A telescopic structure (9) is provided at the bottom of the fixing block (8). A support block (10) is fixedly connected to the side surface of the connecting plate (6).

2. The lithium battery tab connection structure of claim 1, wherein: The telescopic structure (9) includes a connecting column (91) fixed to the bottom of the fixing block (8), a protrusion (92) fixedly connected to the surface of the connecting column (91), a fixing column (93) fixedly connected to one part of the surface of the support plate (3), and a sliding groove (94) is provided inside the fixing column (93).

3. The lithium battery tab connection structure of claim 1, wherein: The adhesive strip (4) is an insulating material, and the adhesive strip (4) is used in conjunction with the lithium battery body (1) and the support plate (3).

4. The lithium battery tab connection structure of claim 1, wherein: The first cotton block (5) and the second cotton block (7) are symmetrically arranged on the same surface of the electrode tab (2) and used together.

5. The lithium battery tab connection structure of claim 1, wherein: The support block (10) has a groove (11) inside, and a slider (12) is slidably connected to the inner cavity of the groove (11). The slider (12) is fixedly connected to the side surface of the connecting plate (6).

6. The lithium battery tab connection structure of claim 2, wherein: There are several protrusions (92), and they are made of rubber. The fixing post (93) slides in the inner cavity of the sliding groove (94).

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