Welding-free lithium battery connecting piece

Abstract

The utility model relates to the technical field of lithium battery connecting pieces, and discloses a welding-free lithium battery connecting piece which comprises a connecting assembly and a protection assembly, the connecting assembly comprises a lithium battery body, the lithium battery body is provided with a negative electrode connecting block and a positive electrode connecting block, and the connecting assembly further comprises a first clamping ring piece. One end of the first clamping ring piece is connected with a first fixing piece, the first fixing piece is connected with a bolt, one end of the bolt is connected with a nut, the end, away from the first fixing piece, of the first clamping ring piece is connected with a connecting piece, and the end, away from the first clamping ring piece, of the connecting piece is connected with a second clamping ring piece. The end, away from the connecting piece, of the second clamping ring piece is connected with a second fixing piece, the protection assembly is arranged below the connecting assembly, the protection assembly comprises a protection installation shell, tight contact between the connecting piece and the lithium battery is achieved, and therefore the stability and reliability of current transmission are ensured; and the safety and the stability of the battery pack are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery connector technology, specifically a solderless lithium battery connector. Background Technology

[0002] Traditionally, lithium-ion battery connections have relied primarily on welding techniques, such as soldering. However, the high temperatures involved in welding can damage the battery tabs and seals, leading to decreased battery performance or safety hazards. Meanwhile, the market is placing higher demands on the safety and reliability of battery packs, requiring more advanced connection technologies to ensure their reliability.

[0003] However, existing solderless lithium battery connectors still have some shortcomings: they are not easy to ensure a tight contact between the connector and the lithium battery, which affects the stability and reliability of current transmission; they are also susceptible to shocks and vibrations during transportation, installation and use, which may damage the internal structure of the battery and thus affect the battery's performance and lifespan. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a solderless lithium battery connector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a weld-free lithium battery connector, comprising a connecting component and a protective component. The connecting component includes a lithium battery body, wherein the lithium battery body is provided with a negative electrode connecting block and a positive electrode connecting block. The connecting component also includes a first clamping ring, one end of which is connected to a first fixing plate, and the first fixing plate is connected to a bolt, one end of which is connected to a nut. The end of the first clamping ring away from the first fixing plate is connected to a connecting plate, and the end of the connecting plate away from the first clamping ring is connected to a second clamping ring. The end of the second clamping ring away from the connecting plate is connected to a second fixing plate. The protective component is located below the connecting component and includes a protective mounting shell, wherein the inner side of the protective mounting shell is provided with a buffer pad, and the inner side of the buffer pad is provided with a spacer pad.

[0006] As a further description of the above technical solution:

[0007] The first clamping ring has two sets arranged symmetrically, and the positive electrode connection block is attached between the two sets of the first clamping ring. At the same time, the second clamping ring has two sets arranged symmetrically, and the negative electrode connection block is attached between the two sets of the second clamping ring.

[0008] As a further description of the above technical solution:

[0009] The first fixing plate has two sets and is connected by nuts and bolts, and the nuts and bolts are threaded together.

[0010] As a further description of the above technical solution:

[0011] The bolts and nuts are provided in three sets and are correspondingly arranged on the first fixing plate, the connecting plate and the second fixing plate.

[0012] As a further description of the above technical solution:

[0013] The connecting piece is disposed between the second clamping ring piece and the first clamping ring piece to connect the first clamping ring piece and the second clamping ring piece. There are two sets of connecting pieces arranged symmetrically and connected by bolts and nuts.

[0014] As a further description of the above technical solution:

[0015] The buffer pad is disposed on the inner side of the protective mounting shell, and the lithium battery body is fitted to the buffer pad.

[0016] As a further description of the above technical solution:

[0017] The lithium battery body is provided in multiple groups, and the spacer pads are provided in multiple groups and evenly distributed between the multiple lithium battery bodies.

[0018] This utility model has the following beneficial effects:

[0019] 1. By placing two sets of first clamping rings and two sets of second clamping rings on both sides of the positive electrode connecting block and the negative electrode connecting block respectively, and fixing the first fixing plate, connecting plate and second fixing plate with bolts and nuts, a tight contact between the connecting plate and the lithium battery is achieved, thereby ensuring the stability and reliability of current transmission and effectively improving the safety and stability of the battery pack.

[0020] 2. By placing multiple sets of lithium battery cells inside the buffer pad and between the spacer pad to protect the multiple sets of lithium battery cells, the impact and vibration that the lithium batteries may be subjected to during transportation, installation and use can be effectively reduced. The setting of the buffer pad can significantly reduce this risk. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a solderless lithium battery connector proposed in this utility model. Figure 1 ;

[0022] Figure 2 A three-dimensional structural diagram of a solderless lithium battery connector proposed in this utility model. Figure 2 ;

[0023] Figure 3A partial structural diagram of a solderless lithium battery connector proposed in this utility model. Figure 1 ;

[0024] Figure 4 A partial structural diagram of a solderless lithium battery connector proposed in this utility model. Figure 2 .

[0025] Legend:

[0026] 1. Connecting assembly; 11. Lithium battery body; 12. Negative electrode connecting block; 13. Positive electrode connecting block; 14. First clamping ring plate; 15. First fixing plate; 16. Bolt; 17. Nut; 18. Connecting plate; 19. Second clamping ring plate; 110. Second fixing plate; 2. Protective assembly; 21. Protective mounting shell; 22. Buffer pad; 23. Separating pad. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1-4 This utility model provides a solderless lithium battery connector, comprising: a connector component 1 and a protective component 2.

[0029] Specifically, the assembly includes a connecting component 1 and a protective component 2. The connecting component 1 includes a lithium battery body 11, which is provided with a negative electrode connecting block 12 and a positive electrode connecting block 13. The connecting component 1 also includes a first clamping ring 14, one end of which is connected to a first fixing piece 15, and the first fixing piece 15 is connected to a bolt 16. One end of the bolt 16 is connected to a nut 17. The end of the first clamping ring 14 away from the first fixing piece 15 is connected to a connecting piece 18, and the end of the connecting piece 18 away from the first clamping ring 14 is connected to a second clamping ring 19. The end of the second clamping ring 19 away from the connecting piece 18 is connected to a second fixing piece 110. The protective component 2 is located below the connecting component 1 and includes a protective mounting shell 21. The inner side of the protective mounting shell 21 is provided with a buffer pad 22, and the inner side of the buffer pad 22 is provided with a spacer pad 23.

[0030] In this embodiment, the connecting component 1 and the protective component 2 constitute a solderless lithium battery connector 18 according to this application, which realizes a stable connection of the lithium battery and provides sufficient protection for the lithium battery.

[0031] In this embodiment, the lithium battery involved is a rechargeable battery that primarily relies on the movement of lithium ions between the positive and negative electrodes to function. During charging and discharging, Li+ ions repeatedly insert and extract between the two electrodes: during charging, Li+ ions extract from the positive electrode, pass through the electrolyte, and insert into the negative electrode, leaving the negative electrode in a lithium-rich state; the reverse occurs during discharging. Lithium-ion battery discharge is achieved through a chemical redox reaction; the gain and loss of ions creates a voltage, resulting in a charge on the battery.

[0032] In this embodiment, the first clamping ring 14, the first fixing piece 15, the connecting piece 18, the second clamping ring 19, and the second fixing piece 110 are made of copper foil, which effectively increases the conductivity between lithium batteries and can meet the requirements of high current discharge.

[0033] It should be noted that the buffer pad 22 is made of rubber, and the spacer pad 23 is a silicone heat insulation pad that effectively prevents heat transfer and electrical breakdown.

[0034] Specifically, two sets of first clamping ring plates 14 are symmetrically arranged, and the positive electrode connecting block 13 is fitted between the two sets of first clamping ring plates 14. Simultaneously, two sets of second clamping ring plates 19 are symmetrically arranged, and the negative electrode connecting block 12 is fitted between the two sets of second clamping ring plates 19. Two sets of first fixing plates 15 are connected to bolts 16 via nuts 17, and the nuts 17 and bolts 16 are threaded together. Three sets of bolts 16 and nuts 17 are respectively arranged on the first fixing plates 15 and connecting plates 18. On the second fixing piece 110, a connecting piece 18 is disposed between the second clamping ring piece 19 and the first clamping ring piece 14 to connect the first clamping ring piece 14 and the second clamping ring piece 19. The connecting piece 18 is provided in two sets and is symmetrically arranged and connected by bolts 16 and nuts 17. The buffer pad 22 is disposed on the inner side of the protective mounting shell 21, and the lithium battery body 11 is fitted with the buffer pad 22. The lithium battery body 11 is provided in multiple sets, and the spacer pad 23 is provided in multiple sets and is evenly distributed between the multiple sets of lithium battery bodies 11.

[0035] In a preferred embodiment, two sets of first clamping ring plates 14 and two sets of second clamping ring plates 19 are placed on both sides of the positive electrode connecting block 13 and the negative electrode connecting block 12, respectively, and the first fixing plate 15, the connecting plate 18 and the second fixing plate 110 are fixed by bolts 16 and nuts 17.

[0036] In a preferred embodiment, multiple sets of lithium battery bodies 11 are placed inside the buffer pad 22 and between the spacer pad 23 to protect the multiple sets of lithium battery bodies 11.

[0037] In use, multiple sets of lithium battery bodies 11 are first placed inside the buffer pad 22 and between the spacer pad 23 to protect the multiple sets of lithium battery bodies 11. Two sets of first clamping rings 14 and two sets of second clamping rings 19 are placed on both sides of the positive electrode connecting block 13 and the negative electrode connecting block 12, respectively. The first fixing plate 15, the connecting plate 18 and the second fixing plate 110 are fixed by bolts 16 and nuts 17.

[0038] The present invention provides a weld-free lithium battery connector 18 that achieves close contact between the connector 18 and the lithium battery, thereby ensuring the stability and reliability of current transmission, effectively improving the safety and stability of the battery pack, and effectively reducing the impact and vibration that the lithium battery may be subjected to during transportation, installation and use. The setting of the buffer pad 22 can significantly reduce this risk.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 solderless lithium battery connector, characterized in that: The device includes a connecting component (1) and a protective component (2). The connecting component (1) includes a lithium battery body (11), which is provided with a negative electrode connecting block (12) and a positive electrode connecting block (13). The connecting component (1) also includes a first clamping ring (14), one end of which is connected to a first fixing plate (15). The first fixing plate (15) is connected to a bolt (16), and one end of the bolt (16) is connected to a nut (17). The first clamping ring (14) is located away from the first fixing plate. One end of the fixed piece (15) is connected to the connecting piece (18), and the end of the connecting piece (18) away from the first clamping piece (14) is connected to the second clamping piece (19), and the end of the second clamping piece (19) away from the connecting piece (18) is connected to the second fixing piece (110). The protective component (2) is located below the connecting component (1), and the protective component (2) includes a protective mounting shell (21), and the inner side of the protective mounting shell (21) is provided with a buffer pad (22), and the inner side of the buffer pad (22) is provided with a spacer pad (23).

2. The solderless lithium battery connector (18) according to claim 1, characterized in that: The first clamping ring (14) is provided in two sets and is symmetrically arranged, and the positive electrode connection block (13) is attached between the two sets of the first clamping ring (14). At the same time, the second clamping ring (19) is provided in two sets and is symmetrically arranged, and the negative electrode connection block (12) is attached between the two sets of the second clamping ring (19).

3. The solderless lithium battery connector (18) according to claim 2, characterized in that: The first fixing plate (15) is provided in two sets and is connected to the bolt (16) by a nut (17), and the nut (17) and the bolt (16) are threaded together.

4. The solderless lithium battery connector (18) according to claim 3, characterized in that: The bolts (16) and nuts (17) are provided in three sets and are respectively arranged on the first fixing plate (15), the connecting plate (18), and the second fixing plate (110).

5. The solderless lithium battery connector (18) according to claim 4, characterized in that: The connecting piece (18) is disposed between the second clamping ring piece (19) and the first clamping ring piece (14) for connecting the first clamping ring piece (14) and the second clamping ring piece (19). The connecting piece (18) is provided in two sets and is symmetrically arranged and connected by bolts (16) and nuts (17).

6. The solderless lithium battery connector (18) according to claim 5, characterized in that: The buffer pad (22) is disposed on the inner side of the protective mounting shell (21), and the lithium battery body (11) is attached to the buffer pad (22).

7. The solderless lithium battery connector (18) according to claim 6, characterized in that: The lithium battery body (11) is provided in multiple sets, and the spacer pad (23) is provided in multiple sets and is evenly distributed between the multiple sets of lithium battery bodies (11).

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