CN216354352U

CN216354352U - Tab rubberizing positioning device

Info

Publication number: CN216354352U
Application number: CN202123115806.XU
Authority: CN
Inventors: 何锦镖; 江英凯; 李钦培
Original assignee: Guangdong Haozhi Technology Co Ltd
Current assignee: Guangdong Haozhi Technology Co Ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-19
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a tab rubberizing positioning device which comprises a base, a positioning groove, a battery cell groove, one or more positioning blocks and one or more bolts, wherein the positioning groove is provided with one or more holes, the one or more positioning blocks are respectively provided with one or more hollow guide grooves, and each bolt penetrates through the moving guide groove of the positioning block and is inserted into the hole of the positioning groove. The device is used in a mode that the naked battery core is placed in the battery core groove, so that the battery tab extends into the positioning groove. Afterwards, use the bolt to fix the locating piece on positioning groove, just can be with the fixed position of naked electric core utmost point ear, then carry out the rubberizing. When the device is used for rubberizing the battery tabs, the battery tabs are aligned, so that the problem of uneven rubberizing is solved.

Description

Tab rubberizing positioning device

Technical Field

The utility model belongs to the field of battery production, and particularly relates to a battery tab rubberizing positioning device.

Background

When the soft package battery is produced, after the lamination of the positive electrode, the diaphragm and the negative electrode is completed to form a naked battery core, the positive electrode lug and the negative electrode lug of the battery are welded to form a battery core lug. After the battery tab is welded, welding spots are generated on the tab, and the tab generally needs to be bent, so that short circuit is easily generated, and therefore, a procedure of pasting insulating glue on the welded position is needed. In the rubberizing process, an insulating adhesive tape is pasted on the folded edge position of the battery tab so as to fix the battery tab and prevent the tab welding point from contacting the outside. After the rubberizing process, the naked electric core can be packed into the plastic-aluminum membrane soft package, and then continue all the other production processes.

However, when the rubberizing of laminate polymer battery is carried out, the rubberizing is uneven and will lead to battery tab to shift, thereby the position of battery tab will appear squinting and can not well contact with other metal components to influence the production processes of follow-up battery package and cause the potential safety hazard of battery. Therefore, an object of the present invention is to provide a device for uniformly sticking an insulating film to a battery tab at an appropriate position in a process of sticking the insulating film to the battery tab in a soft pack.

SUMMERY OF THE UTILITY MODEL

In the battery rubberizing process that can carry out when producing laminate polymer battery, the rubberizing is uneven will lead to battery tab to shift, and battery tab will not fix in proper position and contact with other metal assembly to influence the production processes of follow-up battery package. In order to solve the problems, the utility model adopts the following technical scheme:

the utility model relates to a tab rubberizing positioning device which fixes a naked electric core body through an electric core groove, and aligns a battery tab on the positioning groove by adjusting one or more bolts and one or more positioning blocks, so that the uniformity and consistency of rubberizing are improved.

The utility model has the beneficial effects that: after the device is used for rubberizing the soft package battery, the waste batteries can be reduced, and the safety of the battery is improved. In addition, the positioning block in the device can be moved and replaced, so that the device can be flexibly applied to the production process of soft package batteries with different sizes.

Drawings

FIG. 1 is a schematic diagram of the structure of the device of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The utility model relates to a device for positioning a battery tab during the process of rubberizing the tab of a soft package battery.

When the soft package battery is produced, the process of rubberizing is carried out; in the taping process, the battery tab is preferably fixed.

FIG. 1 is a schematic structural diagram of the present invention. As shown in fig. 1, the device of the present invention includes a base (1), a positioning groove (2), a cell groove (3), a positioning block (4), and a bolt (5).

The base (1) is the body of the device of the utility model. The shape, size and thickness of the base (1) are not limited, but the shape and size of the base (1) should be enough to accommodate the bare cell to be rubberized. Meanwhile, the thickness of the base (1) is enough to support the naked battery cell and the positioning block (4), and the base can bear the stress when the device provided by the utility model is operated. In some embodiments, the base (1) is cuboid shaped. The materials which can be used as the base (1) comprise wood, hard plastic, metal and the like.

The battery cell groove (3) is a part of the base (1) and is used for fixing the naked battery cell body. Consequently, the size and the shape of electric core recess (3) do not have special restrictions, but naked electric core body should can be packed into in electric core recess (3) closely and can not warp when electric core recess (3) is put into to naked electric core body. Therefore, it is preferable that the size and shape of the cell groove (3) correspond to the size and shape of the bare cell body. In some embodiments, the bare cell has a rectangular parallelepiped shape and a smooth surface. Thus, in certain embodiments, the cell recess is also cuboid shaped and its surface is planar.

The positioning groove (2) is also a part of the base (1), and more specifically, the positioning groove (2) is used for fixing the battery tab. Because battery tab and naked electric core body all are the partly of naked electric core, consequently positioning groove (2) are connected with electric core recess (3). The size, shape and width of the positioning groove (2) are not particularly limited as long as the positioning groove (2) can fix and accommodate the battery tab. The surface of the positioning groove (2) is preferably horizontal. In some embodiments, the length of the positioning groove (2) is greater than or equal to the length of the battery tab. At this time, the positioning groove (2) can accommodate the whole battery tab.

In some embodiments, two battery tabs are placed on the positioning groove (2) at the same time. At this time, the width of the positioning groove (2) should be enough to accommodate the left and right tabs of the battery. In other embodiments, in order to enable the positioning groove (2) to accommodate battery tabs of different sizes more flexibly, when two battery tabs are placed on the positioning groove (2), the width of the positioning groove (2) is greater than the edge distance (distance from the left edge of the left tab to the right edge of the right tab) of the two ends of the left tab and the right tab. Meanwhile, the depth of the positioning groove (2) is also not particularly limited, but the depth thereof should be sufficient to accommodate the battery tab.

In some embodiments, the height of the surface of the cell recess (3) is lower than the height of the surface of the positioning recess (2). In other embodiments, the surface of the cell recess (3) has a higher height than the surface of the positioning recess (2).

As mentioned above, one or more positioning blocks (4) in the device of the utility model are positioned on the positioning grooves (2) and are mainly used for fixing the battery tabs together with the positioning grooves (2). Simultaneously, for convenient fixed and adaptation electric core utmost point ear, preferred locating piece (4) can remove. The utility model can be suitable for battery cores with different thicknesses and lugs with different sizes. The positioning blocks (4) with different sizes can be replaced to adapt to the soft-package batteries with different specifications and sizes, so that the flexibility of the device is improved. The advantage that two battery tabs are fixed by only one positioning block (4) at the same time is that the device has relatively few components and is easy to operate.

The material of the positioning block (4) is not particularly limited, and preferably a metal such as steel, iron, nickel, cobalt, tin, or copper. Meanwhile, the size, shape and thickness of the positioning block (4) are not particularly limited.

The bolt (5) is used for fixing the positioning block (4) on the positioning groove (2) for positioning. The material of the bolt (5) is not particularly limited, but the bolt (5) should be able to withstand the maximum force exerted on the positioning groove (2) when the bolt (5) is screwed onto the threaded region of the positioning groove (2) to ensure the stability and durability of the device. In some embodiments, the positioning recess (2) has one or more holes adapted to engage the bolt (5), wherein the holes contain a threaded portion for engaging the bolt (5). The length of the bolt (5) is not particularly limited, but it is ensured that it can fix the positioning block (4). In some embodiments, each bolt (5) can be independently inserted into the positioning groove (2) to prevent displacement of the positioning block (4). The positioning block (4) is preferably arranged on the movable guide groove in a front-back sliding mode, so that the device can flexibly deal with the lugs with different specifications in a sliding adjusting mode in the using process.

The diameter of each hole of the positioning groove (2) and the inner width of the hollow guide of each positioning block (4) are not particularly limited, but it is preferable that the diameter of each hole of the positioning groove (2) and the inner width of the hollow guide of each positioning block (4) are the same. The bolts (5) selected are also preferably of equal width, and the diameter of each bolt (5) is also preferably the same.

The number of holes and bolts (5) for positioning the guide groove (2) is not particularly limited. In some embodiments, the number of holes and bolts (5) of the positioning channel (2) is the same. The number of hollow channels of the positioning block (4) is also not limited, but for effective fixing of the positioning block (4), it is preferred that the positioning block (4) has at least two hollow channels. In some embodiments, each positioning block (4) has two hollow guide grooves, the positioning guide groove (2) has at least two holes, and the number of the bolts (5) is at least two.

The device is used for positioning the battery tab during the process of rubberizing the soft package battery tab. The use mode of the utility model is as follows:

before placing naked electric core, unscrew each nut (5) earlier, then move locating piece (4) upwards. The naked electric core body that will have welded battery utmost point ear is put into electric core recess (3) to adjust the position of battery utmost point ear, make naked electric core body and battery utmost point ear be in on the same horizontal plane with electric core recess (3) and location guide slot (2) respectively. At this time, the battery tab is on the positioning groove (2). And lowering the positioning block (4) to a proper position to enable the positioning block to be in contact with the battery pole lug, and then screwing the nut (5). After each nut (5) was screwed up, naked electric core was fixed to can carry out the rubberizing in the suitable position of naked electric core. After the rubberizing, each nut (5) is unscrewed again to with locating piece (4) rebound, just can shift out the naked electric core after the rubberizing, continue to carry out remaining battery production processes.

After the pole lug rubberizing positioning device is rubberized, the two battery pole lugs are aligned, rubberizing is smooth and not inclined, and the rate of finished products of battery cells and the quality of products are improved.

The utility model fixes the battery pole ear to effectively fix and position the pole ear during the procedure of battery rubberizing, thereby obtaining the neat and consistent high-quality rubberizing effect. More importantly, the safety problems of battery fire and explosion and the like caused by short circuit inside the battery due to untidy insulating glue paste or improper edge paste are avoided, so that the use safety of the battery is improved. In addition, the positioning block (4) in the device can move, so that the device is suitable for the production process of soft package batteries with different sizes, and has high flexibility.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A battery tab rubberizing positioning device, characterized in that the device comprises a base (1), a positioning groove (2), a cell groove (3) and one or more positioning blocks (4), wherein the positioning groove (2) and the cell groove (3) are connected with each other and the surfaces are all horizontal, wherein the surface height of the cell groove (3) is lower than the surface height of the positioning groove (2), and wherein the one or more positioning blocks (4) are located on the positioning groove (2).

2. The device according to claim 1, wherein the one or more positioning blocks (4) are each independently movable.

3. Device according to claim 1, characterized in that the positioning groove (2) has one or more holes.

4. The device according to claim 3, characterized in that said one or more positioning blocks (4) each independently have one or more hollow channels thereon.

5. The device according to claim 4, characterized in that it further comprises one or more bolts (5), wherein said one or more bolts (5) extend through the hollow channel of said one or more positioning blocks (4).

6. The device according to claim 5, characterized in that the number of holes of the positioning groove (2) is the same as the number of bolts (5).

7. The device according to claim 1, characterized in that the surface area of the cell recess (3) is larger than the surface area of the positioning recess (2).