CN215988903U

CN215988903U - Soft package lithium ion battery anchor clamps of buckling

Info

Publication number: CN215988903U
Application number: CN202122325266.1U
Authority: CN
Inventors: 邱钟明; 曾幸林; 陈建军; 汤欣平
Original assignee: Hunan Jiusun New Energy Co ltd
Current assignee: Hunan Jiusun New Energy Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-08
Anticipated expiration: 2031-09-24

Abstract

The application provides soft packet of lithium ion battery anchor clamps of buckling includes: a plastic fixed die and a plastic movable die; the plastic fixed die is provided with a groove which is used for placing a battery and has a semicircular cross section; the plastic movable die is provided with an arc-shaped groove with the length same as that of the groove; two plastic movable dies are arranged; the two plastic movable dies are movably arranged on two sides of the plastic fixed die; in this application, place the battery in the recess, then let two plastics movable moulds be close to the plastics cover half, make the chamber of arc wall and recess group, the arc wall carries out the hem at the aluminium-plastic film that is close to the in-process each other on the battery, and behind the chamber of group, the die cavity can form the extrusion to inside battery to this compresses tightly the aluminium-plastic film and hugs closely on the surface of battery, thereby effectively solve the problem that aluminium-plastic film hem in-process formed the closed angle easily.

Description

Soft package lithium ion battery anchor clamps of buckling

Technical Field

The utility model relates to the technical field of soft package cylindrical batteries, in particular to a bending clamp for a soft package lithium ion battery.

Background

At present, the traditional No. 5 and No. 7 rechargeable batteries are mainly nickel-hydrogen batteries, and in the use process, the nickel-hydrogen batteries have the defects of low capacity, low voltage, long charging time, few rechargeable cycle times, low platform voltage, memory effect and the like. With the development of science and technology and the application of numerous products, lithium ion batteries appear on the market, and compared with nickel-metal hydride batteries, the lithium ion batteries have the advantages of high voltage platform, high charging speed, large discharging current, low self-discharging rate, no memory effect and the like, so that the lithium ion batteries have wider market space, and the cylindrical soft package technology is gradually applied to batteries No. 5 and No. 7.

In the production process of the cylindrical soft package battery, after the side sealing and the top sealing of the battery are completed, redundant aluminum-plastic films can be remained on the side face and the tab end of the battery, and the redundant aluminum-plastic films are required to be folded or shaped to be tightly attached to the battery, so that the sealing reliability of the soft package battery is improved, and the size specification of the soft package battery is ensured. However, the joint of the side seal and the top seal is hard, and a sharp corner is easily formed in the edge folding process, so that the size and specification of the soft package battery are influenced.

Therefore, it is necessary to provide a technical solution capable of controlling the protrusion of the folded angle after the aluminum plastic film is folded.

SUMMERY OF THE UTILITY MODEL

The utility model provides a soft package lithium ion battery bending clamp, and aims to solve the problem that a sharp corner is easily formed after an aluminum plastic film is folded in the packaging process of a soft package cylindrical battery.

The technical scheme adopted by the utility model is as follows: the utility model provides a soft packet of lithium ion battery anchor clamps of buckling, includes:

the plastic fixed die is provided with a groove which is used for placing a battery and has a semicircular cross section;

the plastic movable die is provided with an arc-shaped groove with the length same as that of the groove; two plastic movable dies are arranged; the two plastic movable dies are movably arranged on two sides of the plastic fixed die;

when the two plastic movable dies approach to the plastic fixed die, the arc-shaped grooves on the two plastic movable dies and the grooves can form a cavity for pressing the battery hem.

Furthermore, the cross section of the cavity is circular, and the diameter of the cavity corresponds to the diameter of the battery.

Further, the length of the cavity is greater than or equal to the length of the battery.

Further, the upper end of the plastic movable die is provided with a convex part extending outwards; the arc-shaped groove is formed in one end, far away from the plastic movable mold main body, of the protruding portion.

Furthermore, the central line of the arc-shaped groove is parallel to the central line of the groove, and the central line of the arc-shaped groove and the central line of the groove are positioned on the same plane.

Further, the method also comprises the following steps: the air cylinder is used for driving the plastic movable die to move; the cylinder is arranged on the side edge of the plastic fixed die; the plastic movable mold is installed on an output rod of the air cylinder.

Furthermore, the device also comprises a slide block and a slide rail; the slide rail is arranged on the side edge of the plastic fixed die; the sliding block is movably arranged on the sliding rail, and the plastic moving die is arranged on the sliding block.

The utility model has the beneficial effects that:

in this application, place the battery in the recess, then let two plastics movable moulds be close to the plastics cover half, make the chamber of arc wall and recess group, the arc wall carries out the hem at the aluminium-plastic film that is close to the in-process each other on the battery, and behind the chamber of group, the die cavity can form the extrusion to inside battery to this compresses tightly the aluminium-plastic film and hugs closely on the surface of battery, thereby effectively solve the problem that aluminium-plastic film hem in-process formed the closed angle easily.

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 without limiting the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention.

Reference is made to the accompanying drawings in which: 1. fixing a plastic die; 11. a groove; 2. a plastic moving die; 21. a boss portion; 22. an arc-shaped slot; 3. a battery.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The utility model provides a soft package lithium ion battery bending clamp, which mainly aims to solve the problem that sharp corners are easily formed after an aluminum plastic film is folded in the packaging process of No. 5 and No. 7 soft package cylindrical batteries, but is not limited to No. 5 and No. 7 batteries, and the soft package lithium ion battery bending clamp is also suitable for other soft package cylindrical batteries.

Referring to fig. 1-2, to achieve the above object, the present invention provides a soft package lithium ion battery bending fixture, including: the plastic fixed die 1 and the plastic movable die 2; the plastic fixed die 1 is provided with a groove 11 with a semicircular cross section, the diameter of the groove 11 is the same as that of the battery 3 to be flanged, and the groove 11 is used for placing the battery 3; the plastic moving die 2 is provided with an arc-shaped groove 22 with the length same as that of the groove 11; two plastic moving dies 2 are arranged; the two plastic moving dies 2 are symmetrically arranged on two sides of the plastic fixed die 1, and the plastic moving dies 2 can move along the direction of the plastic fixed die 1; when the two plastic movable dies 2 approach the plastic fixed die 1, the arc-shaped grooves 22 on the two plastic movable dies 2 and the grooves 11 on the plastic fixed die 1 can form a cavity, the arc-shaped grooves 22 can gradually hem the aluminum-plastic film on the batteries 3 in the grooves 11 in the moving process, and after the cavity is formed, the cavity can extrude the internal batteries 3 so as to tightly press and cling the aluminum-plastic film to the surfaces of the batteries 3, so that the problem that sharp corners are easily formed in the process of folding the aluminum-plastic film is effectively solved; specifically, the cross section of the cavity is circular, and the diameter of the cavity corresponds to the diameter of the battery 3 to be flanged, so that the situation that the cavity is too large or too small to achieve the expected flanging extrusion effect is prevented.

Further, the length of the cavity is larger than or equal to that of the battery 3, so that the battery 3 to be flanged can be directly placed on the groove 11, flanging and extrusion can be completed through the plastic fixed die 1 and the plastic movable die 2 at one time, the situation that the cavity is too short in length and needs to be flanged and extruded for multiple times is avoided, and the working efficiency can be improved.

Further, the upper end of the plastic movable mold 2 is provided with a convex part 21 extending outwards; the arc-shaped groove 22 is arranged at one end of the protruding part 21 far away from the main body of the plastic moving die 2, wherein the protruding part 21 is used for providing extension length, so that when the plastic moving die 2 is close to the plastic fixed die 1, the arc-shaped groove 22 can be moved to the upper part of the groove 11 through the protruding part 21, and the arc-shaped groove 22 and the groove 11 form a die cavity.

Furthermore, the central line of the arc-shaped slot 22 is parallel to the central line of the groove 11, and the central line of the arc-shaped slot 22 and the central line of the groove 11 are located on the same plane, so that when the arc-shaped slot 22 moves above the groove 11, the arc-shaped slot can correspond to the structure of the groove 11, and a cavity matched with the structure of the battery 3 is accurately formed.

In one embodiment, the present application further comprises: a cylinder; the air cylinder is arranged on the side edge of the plastic fixed die 1; the plastic moving die 2 is arranged on an output rod of the air cylinder, wherein the plastic moving die 2 can move back and forth along the direction of the plastic fixed die 1 by the driving of the air cylinder, so that the plastic moving die 2 can relatively approach or move away, and a die cavity is formed after the plastic moving die 2 approaches.

In another embodiment, the present application further comprises a slider and a slide rail; the slide rail is arranged on the side edge of the plastic fixed die 1; the slide block is movably arranged on the slide rail, the plastic moving die 2 is arranged on the slide block, and the plastic moving die 2 is driven to reciprocate along the direction of the plastic fixed die 1 through the movement of the slide block, so that the plastic moving die 2 can relatively approach or separate, and form a die cavity after approaching each other.

The specific working process of the application is as follows: will treat the battery 3 of hem earlier and place in recess 11, then the plastics movable mould 2 of drive plastics cover half 1 both sides is close to each other, finally make arc 22 move recess 11 top, and two arc 22 are being close to the in-process gradually, can carry out the hem to battery 3 on the recess 11, after two arc 22 laminating, it can form the die cavity with following recess 11, extrude inside battery 3 with this, thereby compress tightly the protruding part of 3 surperficial hems of battery, with this solve the problem that the aluminium-plastic membrane hem in-process formed the closed angle easily, and can let the aluminium-plastic membrane on the battery 3 reach better sealed effect.

Any combination of the various embodiments of the present invention should be considered as disclosed in the present invention, unless the inventive concept is contrary to the present invention; within the scope of the technical idea of the utility model, any combination of various simple modifications and different embodiments of the technical solution without departing from the inventive idea of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a soft packet of lithium ion battery anchor clamps of buckling which characterized in that includes:

2. The soft package lithium ion battery bending clamp of claim 1, characterized in that: the cross section of the cavity is circular, and the diameter of the cavity corresponds to the diameter of the battery.

3. The soft package lithium ion battery bending clamp according to claim 1 or 2, characterized in that: the length of the cavity is greater than or equal to the length of the battery.

4. The soft package lithium ion battery bending clamp of claim 1, characterized in that: the upper end of the plastic movable die is provided with a bulge extending outwards; the arc-shaped groove is formed in one end, far away from the plastic movable mold main body, of the protruding portion.

5. The soft package lithium ion battery bending clamp of claim 1, characterized in that: the central line of the arc-shaped groove is parallel to the central line of the groove, and the central line of the arc-shaped groove and the central line of the groove are positioned on the same plane.

6. The soft package lithium ion battery bending fixture of claim 1, further comprising: the air cylinder is used for driving the plastic movable die to move; the cylinder is arranged on the side edge of the plastic fixed die; the plastic movable mold is installed on an output rod of the air cylinder.

7. The soft package lithium ion battery bending fixture of claim 1, further comprising a slider and a slide rail; the slide rail is arranged on the side edge of the plastic fixed die; the sliding block is movably arranged on the sliding rail, and the plastic moving die is arranged on the sliding block.