A battery tab with a fixing component

Abstract

This utility model discloses a battery tab with a fixing component, comprising a connecting piece, a plurality of limiting posts fixedly connected inside the connecting piece, a sliding post slidably connected inside the limiting posts, and a plurality of holes formed inside the limiting posts. A rotating rod is rotatably connected inside the holes, and a connecting rod is rotatably connected outside the rotating rod. With the above structure, the connecting piece, with its fixedly connected limiting posts and sliding posts, and the holes inside the limiting posts, allows the tab metal piece to be fixed to the connecting piece by bolts. After prolonged use, the bolts can be rotated in the threaded holes to move the tab metal piece on a slide rail for removal. This allows for the individual replacement of a faulty battery cell by disconnecting the tab from the connecting piece, without needing to scrap the entire battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery tab technology, and in particular to a battery tab with a fixing component. Background Technology

[0002] Battery tabs are key conductive components in lithium batteries that connect the positive and negative electrodes inside the cell to the external circuit. They are equivalent to the current inlet and outlet of the battery and are responsible for realizing the bidirectional transmission of electrochemical energy inside the cell and electrical energy from the external circuit. They are one of the indispensable core components for lithium batteries to complete the charging and discharging function.

[0003] In existing technologies, current is obtained or injected by welding and other methods to fix the positive current collector, usually aluminum foil, and the negative current collector inside the battery cell. However, in some devices, the contact area is reduced after the tabs and connecting pieces are misaligned or loosened, changing from surface contact to point contact. The contact resistance soars from the milliohm level to the ohm level or even higher. Summary of the Invention

[0004] The purpose of this invention is to prevent the connecting piece from being loose or disconnected due to external force displacement, ensuring that the circuit is always conductive. It provides a battery tab with a fixing component, which solves the problem that the connecting piece only partially contacts the tab, and the contact state will repeatedly switch due to vibration and temperature changes.

[0005] This utility model also provides a battery tab with a fixing member as described above, including a connecting piece, a plurality of limiting posts are fixedly connected inside the connecting piece, a sliding post is slidably connected inside the limiting post, and a plurality of holes and grooves are opened inside the limiting post.

[0006] According to the present invention, a battery tab with a fixing component is provided, wherein a rotating rod is rotatably connected inside the slot, and a connecting rod is rotatably connected outside the rotating rod.

[0007] According to the present invention, a battery tab with a fixing component is provided, wherein a locking block is fixedly connected to the outside of the rotating rod.

[0008] According to the present invention, a battery tab with a fixing component is provided, wherein an insulating film is fixedly connected to the bottom of the connecting piece, and the insulating film has multiple adhesive holes inside.

[0009] According to the present invention, a battery tab with a fixing component is provided, wherein two heat sinks are fixedly connected to the top of the connecting piece.

[0010] According to the present invention, a battery tab with a fixing component is provided, wherein two slide rails are fixedly connected to the top of the connecting piece.

[0011] According to the present invention, a battery tab with a fixing component is provided, wherein a tab metal sheet is slidably connected to the outside of the slide rail.

[0012] According to the present invention, a battery tab with a fixing component is provided, wherein the metal tab has a threaded hole inside. Beneficial effects

[0013] 1. A battery tab with a fixing component in this technical solution is installed in a designated position by the connecting piece through the adhesive film at the bottom. Pressing the sliding post causes the sliding post to move on the limiting post. The sliding post drives the connecting rod inside the limiting post to move. The connecting rod drives the rotating rod at both ends to rotate. In turn, the rotating rod drives the external locking block to move, thus fixing the connecting piece in the designated position. This can prevent the connecting piece from being loosely connected or detached due to external force displacement, and ensure that the circuit is always conductive.

[0014] 2. The tab metal piece is fixed to the connecting piece with bolts. After long-term use, the bolts can be rotated in the threaded holes to move the tab metal piece on the slide rail and remove it. In this way, the connection between the tab and the connecting piece of the faulty cell can be disconnected to replace the cell individually without scrapping the entire battery pack. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a structural diagram of a battery tab with a fixing component according to the present invention; Figure 2 This is a schematic diagram of the adhesive hole structure of a battery tab with a fixing component proposed in this utility model; Figure 3 This is a schematic diagram of the structure of a battery tab with a fixing component proposed in this utility model; Figure 4 This is a schematic diagram of the structure of a battery tab metal sheet with a fixing component proposed in this utility model.

[0016] Legend: 1. Connecting piece; 2. Heat sink; 3. Limiting post; 4. Insulating film; 5. Adhesive hole; 6. Sliding post; 7. Groove; 8. Rotating rod; 9. Connecting rod; 10. Locking block; 11. Slide rail; 12. Electrode metal plate; 13. Threaded hole. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-4 This utility model provides a battery tab with a fixing component, which includes a connecting piece 1. The connecting piece 1 is characterized in that: multiple limiting posts 3 are fixedly connected inside the connecting piece 1, sliding posts 6 are slidably connected inside the limiting posts 3, and multiple holes and grooves 7 are opened inside the limiting posts 3.

[0019] Specifically, pressing the sliding column 6 causes it to move on the limiting column 3.

[0020] The inside of the slot 7 is rotatably connected to a rotating rod 8, and the outside of the rotating rod 8 is rotatably connected to a connecting rod 9.

[0021] Specifically, the sliding column 6 drives the connecting rod 9 inside the limiting column 3 to move.

[0022] The rotating rod 8 is externally fixedly connected to a locking block 10.

[0023] Specifically, the connecting rod 9 drives the rotating rods 8 at both ends to rotate, thereby the rotating rods 8 drive the external locking block 10 to move.

[0024] An insulating film 4 is fixedly connected to the bottom of the connecting piece 1, and multiple adhesive holes 5 are opened inside the insulating film 4.

[0025] Specifically, the connecting piece 1 is installed in the designated position using the insulating film 4 at the bottom.

[0026] Two heat sinks 2 are fixedly connected to the top of the connecting piece 1.

[0027] Two slide rails 11 are fixedly connected to the top of the connecting piece 1.

[0028] The slide rail 11 has a metal tab 12 that is slidably connected to its exterior.

[0029] The metal tab 12 has a threaded hole 13 inside.

[0030] Specifically, the tab metal piece 12 is fixed to the connecting piece 1 by bolts. After long-term use, the bolts can be rotated in the threaded hole 13 to move the tab metal piece 12 on the slide rail 11 and remove it.

[0031] Working principle: The connecting piece 1 is installed in the designated position through the insulating film 4 at the bottom. The sliding post 6 is pressed, causing the sliding post 6 to move on the limiting post 3. The sliding post 6 drives the connecting rod 9 inside the limiting post 3 to move. The connecting rod 9 drives the rotating rods 8 at both ends to rotate. The rotating rods 8 drive the external locking block 10 to move, thus fixing the connecting piece 1 in the designated position. This can prevent the connecting piece 1 from being loosely connected or detached due to external force, ensuring that the circuit is always conductive. The tab metal piece 12 is fixed to the connecting piece 1 by bolts. After long-term use, the bolts can be rotated in the threaded hole 13 to move the tab metal piece 12 on the slide rail 11 and remove it. In this way, the connection between the tab metal piece 12 of the faulty cell and the connecting piece 1 can be disconnected, and the cell can be replaced individually without scrapping the entire battery pack.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A battery tab with a fixing member, comprising a connecting tab (1), characterized in that: The connecting piece (1) has multiple limiting posts (3) fixedly connected inside, and the limiting posts (3) have sliding posts (6) slidably connected inside, and the limiting posts (3) have multiple holes and slots (7) inside.

2. The battery tab with a fixing member according to claim 1, wherein The slot (7) is rotatably connected to a rotating rod (8), and the rotating rod (8) is rotatably connected to a connecting rod (9) on the outside.

3. The battery tab with a fixture according to claim 2, wherein, The rotating rod (8) is externally fixedly connected to a locking block (10).

4. The battery tab with a fixture according to claim 1, wherein, An insulating film (4) is fixedly connected to the bottom of the connecting piece (1), and multiple adhesive holes (5) are opened inside the insulating film (4).

5. The battery tab with a fixture according to claim 1, wherein, Two heat sinks (2) are fixedly connected to the top of the connecting piece (1).

6. The battery tab with a fixture according to claim 1, wherein, The top of the connecting piece (1) is fixedly connected to two slide rails (11).

7. The battery tab with a fixture according to claim 6, wherein, The slide rail (11) is externally slidably connected to a tab metal plate (12).

8. The battery tab with a fixture according to claim 7, wherein, The tab metal sheet (12) has a threaded hole (13) inside.

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