CN219144243U

CN219144243U - Button cell electric core packaging mold

Info

Publication number: CN219144243U
Application number: CN202223530840.8U
Authority: CN
Inventors: 阙小超; 王丽; 请求不公布姓名
Original assignee: Yuantuo Microelectronics Technology Ningbo Co ltd
Current assignee: Yuantuo Microelectronics Technology Ningbo Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-06
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a button cell battery cell packaging die which comprises an upper sealing cutter and a lower sealing cutter matched with the upper sealing cutter, wherein a first annular flange is arranged on the side surface of the upper sealing cutter, which is close to the lower sealing cutter, a plurality of first annular flanges are arranged on the side surface of the lower sealing cutter, a second annular flange is arranged on the side surface of the lower sealing cutter, which is close to the upper sealing cutter, and the positions, the sizes and the shapes of the second annular flanges are matched with those of the first annular flanges. The battery cell is located in a cavity formed by the first annular flange and the second annular flange, an upper layer aluminum plastic film and a lower layer aluminum plastic film are placed on the upper side surface and the lower side surface of the cell, and the upper layer aluminum plastic film and the lower layer aluminum plastic film are bonded together through mutual pressing of an upper sealing knife and a lower sealing knife. Through last a plurality of first annular flanges of being provided with on the sword that seals, all can place the electric core in every first annular flange, go up the sword and seal the sword once pressfitting down, can realize the encapsulation of a plurality of electric cores, encapsulation efficiency is high.

Description

Button cell electric core packaging mold

Technical Field

The utility model relates to the field of battery manufacturing, in particular to a button cell battery cell packaging die.

Background

The battery core of the battery comprises a bare cell and a protective shell for packaging the bare cell, electrolyte is further packaged in the protective shell, and the electrolyte is used as a connecting bridge of a positive plate and a negative plate of the bare cell, so that a charge-discharge loop can be formed between the positive plate and the negative plate. The packaging process of the battery cell refers to a process of packaging the buckling type cell by using the aluminum plastic film after the pulling and pit punching, and in the packaging process, the aluminum plastic film is heated and melted to enable the upper aluminum plastic film and the lower aluminum plastic film positioned on two sides of the cell to be bonded together. At present, the miniature knot formula electric core that sells in the market adopts the mode of sealing a miniature lithium ion electric core once more when packaging, and packaging efficiency is low.

Disclosure of Invention

In order to overcome the above disadvantages, the present utility model is directed to a packaging mold for a button cell, which can package a plurality of battery cells at a time, and has high packaging efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a button cell electric core encapsulation mould, includes seal the sword and with seal sword assorted lower seal the sword on, go up seal the sword and be close to seal the side of sword down and be provided with first annular flange, and first annular flange is provided with a plurality ofly, lower seal the sword and be close to the side of sealing the sword is provided with the second annular flange, the second annular flange with first annular flange position, size, shape looks adaptation. The battery cell is located in a cavity formed by the first annular flange and the second annular flange, an upper aluminum plastic film and a lower aluminum plastic film are placed on the upper side surface and the lower side surface of the cell, and the upper aluminum plastic film and the lower aluminum plastic film are bonded together by heating the upper sealing knife and the lower sealing knife to press together. Through last a plurality of first annular flanges of being provided with on the sword that seals, all can place the electric core in every first annular flange, go up the sword and seal the sword once pressfitting down, can realize the encapsulation of a plurality of electric cores, encapsulation efficiency is high.

The utility model is further provided as follows: a plurality of the first annular flanges are arranged in a rectangular array.

The utility model is further provided as follows: the upper sealing knife is provided with a first protruding portion, a first groove is formed in the first protruding portion, and the first protruding portion and the first groove form the first annular flange.

The utility model is further provided as follows: the lower sealing knife is provided with a second protruding portion, a second groove is formed in the second protruding portion, and the second protruding portion and the second groove form a second annular flange.

The utility model is further provided as follows: the first annular flange is provided with two first lug grooves, and the two first lug grooves are arranged in a central symmetry mode by taking the center of the first annular flange as the center.

The utility model is further provided as follows: the length of the first tab groove is 2-5 mm, the width of the first tab groove is 1.5-3.5 mm, and the depth of the first tab groove is 0.08-0.20 mm.

The utility model is further provided as follows: two second lug grooves are formed in the second annular flange, and the positions and the sizes of the second lug grooves are matched with those of the first lug grooves.

The utility model is further provided as follows: heating devices can be arranged on the upper sealing knife and the lower sealing knife.

The beneficial effects of the utility model are as follows: through last a plurality of first annular flanges of being provided with on the sword that seals, all can place the electric core in every first annular flange, go up the sword and seal the sword once pressfitting down, can realize the encapsulation of a plurality of electric cores, encapsulation efficiency is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic press-fit diagram of an upper seal cutter and a lower seal cutter according to an embodiment of the present utility model;

FIG. 2 is a perspective view of an upper seal cutter according to an embodiment of the present utility model;

fig. 3 is an enlarged view at a in fig. 2.

In the figure: 1. an upper sealing knife; 11. a first boss; 12. a first groove; 13. a first annular flange; 14. a first tab recess; 2. a lower sealing knife; 21. and a second boss.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1, a packaging mold for a battery cell in this embodiment includes an upper sealing knife 1 and a lower sealing knife 2 matched with the upper sealing knife 1, when in operation, the upper sealing knife 1 is placed on an upper side surface of the battery cell, the lower sealing knife 2 is placed on a lower side surface of the battery cell, an upper aluminum plastic film and a lower aluminum plastic film are placed on upper and lower side surfaces of the battery cell, and the upper sealing knife 1 and the lower sealing knife 2 are pressed together by a person or a machine to complete packaging of the aluminum plastic film of the battery cell.

Referring to fig. 1-3, in some embodiments, the upper sealing cutter 1 is provided with a first protruding part 11 on the side surface near the lower sealing cutter 2, the first protruding part 11 is a cylinder, a first groove 12 is axially arranged at the top of the first protruding part 11, the first groove 12 and the cylinder where the first groove 12 is located are arranged in concentric circles, and the first groove 12 and the first protruding part 11 form a first annular flange 13. The first groove 12 is used for placing a battery cell.

In some embodiments, a second protruding portion 21 is disposed on a side surface of the lower sealing knife 2, which is close to the upper sealing knife 1, the second protruding portion 21 is matched with the first protruding portion 11 in position, the second protruding portion 21 is a cylinder, a second groove is axially disposed on the top of the second protruding portion 21, the second groove and the cylinder where the second groove is located are disposed in concentric circles, the second groove and the second protruding portion form a second annular flange, and the second annular flange is matched with the first annular flange 13 in position, size and shape. The first groove 12 and the second groove form a cavity for placing a power supply, the power supply is placed in the cavity when in operation, the aluminum plastic film wrapping the power supply is extended out of the cavity and is positioned between the first annular flange 13 and the second annular flange, and when the first annular flange 13 and the second annular flange are pressed by a person or a machine, the aluminum plastic film is heated and packaged.

In some embodiments, the first protruding portions 11 are provided with a plurality of first protruding portions 11, and a plurality of first protruding portions 11 are arranged in a rectangular array, and by means of arrangement of the plurality of first protruding portions 11, corresponding second protruding portions 21 with the same number are formed, and the same number of cavities are formed, and each cavity can be internally provided with one battery cell, and by means of pressing the upper sealing knife 1 and the lower sealing knife 2 at one time, plastic packaging can be performed on plastic-aluminum films of the plurality of battery cells, so that the efficiency of battery cell packaging is improved. In this embodiment, be provided with 10 first bellying 11 on the last sword 1, all can place a electric core in every first bellying 11, then can hold 10 electric cores, go up sword 1 and lower sword 2 pressfitting once, then 10 electric cores can be packaged simultaneously, improved the encapsulation efficiency to the electric core, and after the pressfitting, connect through the plastic-aluminum membrane between the adjacent electric core, for single electric core, interconnect's electric core is a whole, more shifts easily, improves the efficiency of shifting.

In some embodiments, a first tab groove 14 is provided on the upper surface of the first annular flange 13 in a downward extending manner, and when in pressing, a space is reserved for the tab of the battery cell through the arrangement of the first tab groove 14, so that the tab of the battery cell can be led out from the first tab groove 14. The two first tab grooves 14 are arranged, and the two first tab grooves 14 are arranged in a central symmetry manner by taking the center of the first annular flange 13 as the center. Through the arrangement of the two first tab grooves 14, one first tab groove 14 is used for leading out the nickel tab of the battery cell, and the other first tab groove 14 is used for leading out the aluminum tab of the battery cell.

In some embodiments, the first tab groove 14 is slightly larger than the tab of the battery cell, the length of the first tab groove 14 is 2-5 mm, the width is 1.5-3.5 mm, and the depth is 0.08-0.20 mm.

In some embodiments, a second tab groove is formed on the upper surface of the second annular flange in a downward extending manner, and when in press fit, a space is reserved for the tab of the battery cell through the arrangement of the second tab groove, so that the tab of the battery cell is led out from the through hole formed by the first tab groove 14 and the second tab groove. The number, size, and position of the second tab grooves are adapted to the first tab grooves 14.

In some embodiments, the upper sealing knife 1 and the lower sealing knife 2 can be provided with heating devices. There are many kinds of heating devices, and the heating device in the present utility model is preferably a heating tube. The heating device has the main effects that the upper sealing knife 1 and the lower sealing knife 2 have proper temperature when in work, so that the upper aluminum plastic film and the lower aluminum plastic film can be adhered together to encapsulate the battery cell.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a button cell electric core encapsulation mould, its characterized in that, include last sealing sword (1) and with last sealing sword (1) assorted lower sealing sword (2), go up sealing sword (1) be close to the side of sealing sword (2) down is provided with first annular flange (13), and first annular flange (13) are provided with a plurality ofly, lower sealing sword (2) be close to the side of last sealing sword (1) is provided with the second annular flange, second annular flange with first annular flange (13) position, size, shape looks adaptation.

2. A battery cell packaging mould according to claim 1, characterized in that a plurality of the first annular flanges (13) are arranged in a rectangular array.

3. The button cell battery cell packaging mold according to claim 1, wherein a first protruding part (11) is provided on the upper sealing knife (1), a first groove (12) is provided on the first protruding part (11), and the first protruding part (11) and the first groove (12) form the first annular flange (13).

4. A battery cell packaging mould according to claim 3, characterized in that the lower sealing knife (2) is provided with a second protruding part (21), a second groove is provided on the second protruding part (21), and the second protruding part (21) and the second groove form the second annular flange.

5. The button cell battery cell packaging die according to claim 1, wherein the first annular flange (13) is provided with two first tab grooves (14), and the two first tab grooves (14) are arranged in a central symmetry manner with the center of the first annular flange (13) as the center.

6. The packaging die for the button cell battery cells according to claim 5, wherein the length of the first tab groove (14) is 2-5 mm, the width is 1.5-3.5 mm, and the depth is 0.08-0.20 mm.

7. The packaging die for the button cell battery cell according to claim 5, wherein two second tab grooves are formed in the second annular flange, and the positions and sizes of the second tab grooves are matched with those of the first tab grooves (14).

8. A battery cell packaging mould according to any of claims 1-7, characterized in that heating means are provided on both the upper (1) and lower (2) sealing blades.