CN214395079U

CN214395079U - Shell punching die for lithium battery packaging

Info

Publication number: CN214395079U
Application number: CN202120617200.7U
Authority: CN
Inventors: 刘兵华; 王城; 王继生; 朱观音
Original assignee: Ji'an Utility Technology Co ltd
Current assignee: Ji'an Utility Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-10-15
Anticipated expiration: 2031-03-26

Abstract

The utility model belongs to the technical field of lithium battery package, a towards shell mould for lithium battery package is provided, include: the mould comprises an upper mould, a lower mould, a top plate and a mould core, wherein the upper mould is provided with a plurality of upper positioning holes which are linearly arranged in two rows, the lower mould is provided with a lower through hole corresponding to the upper positioning holes, an aluminum-plastic film is arranged between the upper mould and the lower mould, the top plate is arranged at the lower end of the lower mould, the mould core is arranged on the top plate, one end of the mould core is arranged in the lower through hole, the top end of the mould core is contacted with the bottom of the upper positioning hole of the upper mould, the mould core is used for punching the aluminum-plastic film on one side of the upper mould under the action of the top plate, and the top end of the mould core extends into the upper positioning hole of the upper mould. Compared with the prior art, the utility model has the advantages of: when the mold core punches the aluminum-plastic film, the mold core moves towards one side of the upper mold and is inserted into the positioning hole of the upper mold, and the aluminum-plastic film is punched into the positioning hole, so that a plurality of pairs of pit positions are formed at one time, the packaging of a plurality of battery cells can be realized, the manufacturing efficiency is greatly improved, the consumption of the aluminum-plastic film is reduced, and the production cost is reduced.

Description

Shell punching die for lithium battery packaging

Technical Field

The utility model belongs to the technical field of lithium battery package, concretely relates to towards shell mould for lithium battery package.

Background

Soft packet of lithium cell is the third generation power lithium cell that develops on original steel casing, aluminum hull, the shell battery that moulds, because soft packet of lithium cell is lighter, thinner, long cycle life, security performance good, energy density is high, the platform that discharges is stable, power performance is outstanding, the environmental protection advantage such as pollution-free, and is widely used in fields such as mobile terminal, electric motorcycle car, electric tool, solar photovoltaic power generation system, wind power generation system, portable power source.

The packaging is a very important link in the production process of the soft package lithium battery, and the soft package lithium battery is packaged by an aluminum-plastic film which has high chemical resistance, moisture insulation, oxygen insulation and packaging bonding force and can prevent explosion. However, in the packaging process of the existing lithium battery, only one battery cell can be packaged in each packaging process, the manufacturing efficiency is low, the manufacturing cost and the material cost are high, and the consumption of the aluminum-plastic film is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem to the current situation of prior art, and provide a towards shell mould for lithium battery package.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a shell punching die for lithium battery packaging is provided, which comprises: go up mould, lower mould, roof and mold core, it is provided with a plurality of locating holes of two rows of linear arrangement to go up the mould, the lower mould corresponds it is equipped with down the through-hole to go up the locating hole, and the plastic-aluminum membrane setting is between last mould and lower mould, the roof sets up the lower extreme of lower mould, be equipped with the mold core on the roof, the one end setting of mold core is in the lower through-hole of lower mould, just the top of mold core with the bottom of the last locating hole of last mould contacts, the mold core under the effect of roof to go up mould one side punching press plastic-aluminum membrane, the top of mold core stretches into in the last locating hole of last mould.

Compared with the prior art, the utility model has the advantages of: through setting up two rows of linear arrangement's a plurality of locating holes on last mould, when the mould core punching press plastic-aluminum membrane, the mould core moves to last mould one side and inserts in the locating hole of mould, advances in the locating hole with the plastic-aluminum membrane punching press to once form many pairs of hole positions, can realize the encapsulation of a plurality of electric cores, very big improvement the preparation efficiency, and also reduced the consume of plastic-aluminum membrane, reduced manufacturing cost.

In the shell punching die for lithium battery packaging, the structure of the upper positioning hole is matched with the structure of the lithium battery cell, so that the shape punched by the aluminum plastic film is matched with the cell.

In the shell punching die for lithium battery packaging, the upper positioning hole is matched with the structure of the die core, so that the die core and the positioning hole are ensured to be matched with each other in the punching process, and the shape of the aluminum plastic film after being punched is further ensured to be matched with the battery cell.

In the above-mentioned stamping die for lithium battery packaging, the number of the upper positioning holes is 10, and the upper positioning holes are arranged in 5 pairs. Two rows of locating holes about, each row sets up 5 locating holes, and the interval between every locating hole is 7-8mm, and two upper and lower locating holes are a pair of, realize the encapsulation of an electric core, can realize the encapsulation of 5 electric cores once, set up like this, whole gasbag size only need than original gasbag that encapsulates only one electric core each time 8mm more, greatly reduced the loss of plastic-aluminum membrane, reduced manufacturing cost, improved economic benefits.

Drawings

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

fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present invention.

In the figure, 1-upper mold; 11-upper positioning holes; 2-lower mould; 21-lower via; 3-a top plate; 4, a mold core; 5-aluminum plastic film.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and fig. 2, the utility model relates to a shell punching mold for lithium battery packaging, including: go up mould 1, lower mould 2, roof 3 and mold core 4, it is equipped with two rows of linear arrangement's 10 rectangles and goes up locating hole 11 to go up mould 1, lower mould 2 corresponds to go up locating hole 11 and is equipped with through-hole 21 under 10 rectangles, the plastic-aluminum membrane setting is between last mould 1 and lower mould 2, roof 3 sets up the lower extreme at lower mould 2, be equipped with 10 rectangle mold cores 4 on the roof 3, the one end setting of mold core 4 is in the lower through-hole 21 of lower mould 2, and the top of mold core 4 contacts with the bottom of last locating hole 11 of last mould 1, the structure of going up locating hole 11 and the structure looks adaptation of lithium cell electricity core, it suits to go up locating hole 11 and mold core 4's structure phase.

When punching press plastic-aluminum membrane, mold core 4 is to 1 one side punching press plastic-aluminum membrane of last mould under the effect of roof 3, the top of mold core 4 stretches into in last locating hole 11 of last mould 1, get into in last locating hole 11 with the plastic-aluminum membrane punching press, the punching press is accomplished the back, be formed with about 5 to 10 hole positions on the plastic-aluminum membrane, every can encapsulate an electric core to the hole position, so the punching press once can realize the encapsulation to 5 electric cores, and the size of whole gasbag bag is only than the gasbag bag that originally encapsulates only an electric core each time after the fitment is accomplished 8mm bigger, the loss of plastic-aluminum membrane has greatly been reduced, and therefore, the production cost is reduced, the production efficiency is improved, and the economic benefits is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.

Claims

1. A towards shell mould for lithium battery package, characterized by, includes: an upper die (1), a lower die (2), a top plate (3) and a die core (4), the upper die (1) is provided with two rows of a plurality of upper positioning holes (11) which are arranged linearly, the lower die (2) is provided with a lower through hole (21) corresponding to the upper positioning hole (11), the aluminum plastic film is arranged between the upper die (1) and the lower die (2), the top plate (3) is arranged at the lower end of the lower die (2), a die core (4) is arranged on the top plate (3), one end of the mold core (4) is arranged in a lower through hole (21) of the lower mold (2), and the top end of the mold core (4) is contacted with the bottom of the upper positioning hole (11) of the upper mold (1), the mold core (4) punches an aluminum plastic film towards one side of the upper mold (1) under the action of the top plate (3), the top end of the mold core (4) extends into the upper positioning hole (11) of the upper mold (1).

2. The stamping die for lithium battery packaging according to claim 1, wherein the structure of the upper positioning hole (11) is matched with the structure of the lithium battery cell.

3. The stamping die for lithium battery pack as claimed in claim 2, wherein the upper positioning holes (11) are matched with the structure of the mold core (4).

4. The stamping die for lithium battery packaging as claimed in claim 3, wherein the number of the upper positioning holes (11) is 10, and the upper positioning holes are arranged in 5 pairs.