A device for improving the wrinkles of aluminum-plastic film of square double-ended electronic cigarette battery

Abstract

The utility model discloses a device for improving the wrinkles of the aluminum-plastic film of a square two-head output ear electronic cigarette battery, belonging to the technical field of battery aluminum-plastic film processing equipment, including: a main pit punch and a secondary pit punch, the main pit punch is connected to the secondary pit punch, the height of the main pit punch close to the partition wall and the height of the secondary pit punch close to the partition wall are both less than the height away from the partition wall; the template is provided with a main pit groove and a secondary pit groove, the position of the main pit groove corresponds to the main pit punch, and the position of the secondary pit groove corresponds to the secondary pit punch. In the utility model, the aluminum-plastic film has a smooth appearance, which prolongs the service life of the battery core, avoids the problem of increased battery core temperature and increased battery core resistance caused by the wrinkles of the aluminum-plastic film, and improves the safety performance and use performance of the battery core.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery aluminum-plastic film processing equipment, and more specifically relates to a device for improving the wrinkles of the aluminum-plastic film of a square double-end output tab electronic cigarette battery. Background Art

[0002] like Figure 1 As shown, the existing two-end square electronic cigarette battery punch design is designed according to the conventional battery head design, and the punch height design close to the partition wall side and the punch height design close to the side in the width direction of the punch are the same.

[0003] Defects: The punch of this design is close to the partition wall because there is a certain width of the partition wall. When the punch is inserted into the shell, the partition wall will increase the shell thickness on the partition wall side, resulting in a mismatch between the thickness of the battery cell on the partition wall side and the thickness of the punch shell. However, the thickness of the battery cell on the side matches the depth of the punch shell well, resulting in a good appearance of the final finished product near the side. The aluminum-plastic film is wrinkled near the partition wall. The battery with two-end tabs has two top edges and only one side. The partition wall is integrally formed. Since the R angle on the side of the battery cell is relatively large, and the diaphragm will be pulled up when it is packaged into the shell, if the punch is still designed with the same height in the width direction of the ordinary punch, the outer aluminum-plastic film of the battery near the partition wall is prone to wrinkles. The wrinkles of the battery aluminum-plastic film will cause:

[0004] 1. Reduced service life of the battery cell: After the aluminum-plastic film is wrinkled, the electrochemical reaction between the positive and negative electrodes inside the battery cell is accelerated, thereby consuming more active substances and shortening the service life of the battery cell.

[0005] 2. Increased internal resistance of the battery cell: When the aluminum-plastic film is wrinkled, a curved gap will be generated between the positive and negative electrodes of the battery cell, which hinders the diffusion and movement of the electrolyte, resulting in increased resistance and decreased battery performance.

[0006] 3. Reduced safety: When the aluminum-plastic film is wrinkled, it is easy to cause the internal temperature of the battery cell to rise, increase the probability of short circuit and fire of the battery cell, and reduce the safety performance of the battery.

[0007] Therefore, how to provide a device to improve the wrinkles of the aluminum-plastic film of a square double-ended electronic cigarette battery is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0008] In view of this, the utility model provides a device for improving the wrinkles of the aluminum-plastic film of a square two-end output ear electronic cigarette battery. In the utility model, the aluminum-plastic film has a smooth appearance, which prolongs the service life of the battery core, avoids the problems of increased battery core temperature and increased battery core resistance caused by the wrinkles of the aluminum-plastic film, and improves the safety performance and use performance of the battery core.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A device for improving the wrinkles of the aluminum-plastic film of a square two-end output tab electronic cigarette battery comprises: a main pit punch and an auxiliary pit punch, wherein the main pit punch is connected to the auxiliary pit punch, and the height of the main pit punch on one side of the partition wall and the height of the auxiliary pit punch close to the partition wall are both smaller than the height on the side away from the partition wall; a main pit groove and an auxiliary pit groove are provided on the template, wherein the position of the main pit groove corresponds to the main pit punch, and the position of the auxiliary pit groove corresponds to the auxiliary pit punch.

[0011] Furthermore, the punching end of the main pit punch and the punching end of the auxiliary pit punch are both arc-shaped structures.

[0012] The beneficial effects of the utility model are:

[0013] The utility model has a simple structure and is easy to use. By modifying the punch design, the aluminum-plastic film on the side of the battery partition wall of the two-headed square battery with the battery cell is perfectly matched, and the matching effect is consistent with the side, and no wrinkles will be generated. As a result, the aluminum-plastic film in the utility model has a smooth appearance, which makes the battery cell have a long service life, avoids the problem of increased battery cell temperature and increased battery cell resistance caused by wrinkles of the aluminum-plastic film, and improves the safety performance and use performance of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the folds of the aluminum-plastic film of a two-end tab battery in the prior art.

[0016] Figure 2 It is a structural schematic diagram of the punch of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the template of the utility model.

[0018] Among them, in the figure:

[0019] 1- Main pit punch; 2- Auxiliary pit punch; 3- Main pit groove; 4- Auxiliary pit groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Please see attached Figure 2-3 The utility model provides a device for improving the wrinkles of the aluminum-plastic film of a square two-end output ear electronic cigarette battery, comprising: a punch and a template; the punch comprises: a main pit punch 1 and an auxiliary pit punch 2, the main pit punch 1 is connected to the auxiliary pit punch 2, the height of the main pit punch 1 on one side of the partition wall and the height of the auxiliary pit punch 2 on the side close to the partition wall are both smaller than the height on the side away from the partition wall; a main pit groove 3 and an auxiliary pit groove 4 are provided on the template, the position of the main pit groove 3 corresponds to the main pit punch 1, and the position of the auxiliary pit groove 4 corresponds to the auxiliary pit punch 2.

[0022] The punching end of the main pit punch 1 and the punching end of the auxiliary pit punch 2 are both arc-shaped structures.

[0023] Take the 101839-850mAH battery punch design as an example to explain as follows:

[0024] The mold length is set to 34.7±0.05mm, the mold width is set to 16.6±0.05mm, the partition wall height is designed as 1.6±0.05mm, the shell depth of the main pit punch 1 and the auxiliary pit punch 2 close to the partition wall is 0.3mm lower than that away from the partition wall. The height of the main pit punch 1 and the auxiliary pit punch 2 away from the partition wall is 59.8mm, and the height of the main pit punch 1 and the auxiliary pit punch 2 close to the partition wall is 59.5mm.

[0025] The utility model has a simple structure and is easy to use. By modifying the punch design, the aluminum-plastic film on the side of the battery partition wall of the two-headed square battery with the battery cell is perfectly matched, and the matching effect is consistent with the side, and no wrinkles will be generated. As a result, the aluminum-plastic film in the utility model has a smooth appearance, which makes the battery cell have a long service life, avoids the problem of increased battery cell temperature and increased battery cell resistance caused by wrinkles of the aluminum-plastic film, and improves the safety performance and use performance of the battery cell.

[0026] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for improving the wrinkles of the aluminum-plastic film of a square double-ended electronic cigarette battery, characterized in that: include: Punches and templates; The punch comprises: a main pit punch (1) and an auxiliary pit punch (2), wherein the main pit punch (1) is connected to the auxiliary pit punch (2), and the height of the main pit punch (1) on one side of the partition wall and the height of the auxiliary pit punch (2) on the side close to the partition wall are both smaller than the height on the side away from the partition wall; the template is provided with a main pit groove (3) and an auxiliary pit groove (4), wherein the position of the main pit groove (3) corresponds to the main pit punch (1), and the position of the auxiliary pit groove (4) corresponds to the auxiliary pit punch (2).

2. A device for improving the wrinkles of the aluminum-plastic film of a square double-ended electronic cigarette battery according to claim 1, characterized in that: The punching end of the main pit punch (1) and the punching end of the auxiliary pit punch (2) are both arc-shaped structures.

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