Heat plastic joining system in li-ion battery package type cell modules

Abstract

The invention relates to a plastic heat staking system (1) in li-ion battery pouch type cell modules comprising staking guns (1.2) that melt the plastic pins and provide integrity by forming a curved structure in order to ensure the integrity of the connectors between the battery cells; staking units (1.1) in which the staking guns (1.2) are positioned; an overprint module (1.3) that applies overhead pressure force to provide flatness for the module; and activators (1.4) that control the movement of the plastic heat staking system (1) in the right and left directions.

Description

[0001] HEAT PLASTIC JOINING SYSTEM IN LI -ION BATTERY PACKAGE TYPE

[0002] CELL MODULES

[0003] Technical Field :

[0004] The invention relates to the system that performs the process of plastic heat staking after the cell is placed in the cassette and arranged in the module in li-ion battery pouch type cell modules .

[0005] State of the Art :

[0006] Batteries are the general name of devices that allow electrical energy to be stored and used when necessary .

[0007] Lithium-ion batteries , or li-ion batteries for short , are types of batteries that can be recharged quickly . The amount and duration of power provided by li-ion batteries is fairly high according to their weights and measurements .

[0008] On the other hand, the carbon emissions and toxic values of li-ion batteries are much lower than other battery types .

[0009] Due to these features , li-ion batteries are used in many electronic devices , especially tablets and mobile phones .

[0010] Nowadays , li-ion batteries are used in hybrid vehicles and electric vehicles .

[0011] Nowadays , li-ion batteries are divided into three main types as cylinder type li-ion batteries , prism type li-ion batteries and pouch type li-ion batteries . In li-ion battery pouch type cell modules , it is necessary to apply the process of plastic heat staking after the cell is placed in the cassette and arranged in the module . The process of plastic heat staking allows the plastic pins on the cassette to soften and take shape by applying heat after the connector placement . In this way, assembly is provided without welding and using fasteners by preventing the parts from separating from each other .

[0012] However, the currently mentioned process of plastic heat staking is carried out manually by an operator . This is because there is no full integration of this process for battery modules in the existing serial as sembly line . This both slows down the production line and increases the likelihood of errors in the products . On the other hand, performing the process with manpower also poses a risk for occupational accidents .

[0013] Object of the Invention :

[0014] The obj ect of the invention is to provide serial , safe and low margin of error production by eliminating production errors and possible occupational accident risks arising from the manual operation of the process by revealing a unit structure that performs the plastic heat staking process in li-ion battery pouch type cell modules under full automation control .

[0015] Descriptions of the Figures

[0016] Figure 1 . An upper-perspective view of the plastic heat staking unit ,

[0017] Figure 2 . A sub-perspective view of the plastic heat staking unit ,

[0018] Figure 3 . A close view of the staking unit , List of the Reference Numbers:

[0019] 1. Plastic heat staking system

[0020] 1.1. Staking unit

[0021] 1.2. Staking gun

[0022] 1.3. Overprint module

[0023] 1.3.1. Overprint module bearings

[0024] 1.4. Activator

[0025] Description of the Invention:

[0026] In the li-ion battery pouch type cell modules of the invention, there are staking guns (1.2) that melt the plastic pins and provide integrity by forming a curved structure in order to ensure the integrity of the connectors between the battery cells; staking units (1.1) in which the staking guns (1.2) are positioned; an overprint module (1.3) that applies overhead pressure force to provide flatness for the module and activators (1.4) that control the movement of the plastic heat staking system (1) in the right and left directions.

[0027] The plastic heat staking system (1) performs the staking process after the connector insertion into the cell plates in the step of placing the battery cells in the cassette and then stacking them in the module.

[0028] In order to ensure the integrity of the connectors between the battery cells, the staking guns (1.2) melt the plastic pins and provide integrity by forming a curved structure.

[0029] The staking units (1.1) comprising the staking guns (1.2) are positioned on the right and left sides of the conveyor system as shown in Figure 2. In the example of our invention, in its structure, a plastic heat staking system (1) comprising 1 and 4 staking guns (1.1) on the right side of the conveyor system by comprising 4 staking guns (1.1) and 1 positioned staking units (1.1) on the left side of the conveyor system.

[0030] The plastic heat staking system (1) has pneumatic cylinders that allow the staking guns (1.2) to move without damaging the battery .

[0031] The plastic heat staking system (1) has a stopper that allows the conveyor system to be stopped in the desired position.

[0032] The flatness of the pouch type cell modules is provided by the overprint module (1.3) . The overprint module (1.3) is made of insulated cestamite material.

[0033] The overprint module (1.3) has overprint module bearings (1.3.1) that provide support printing force from 4 corners and allow the module to remain stable in the center in the heat staking process from the sides.

[0034] The plastic heat staking system (1) comprises electrical linear activators (1.4) independent of each other. Thanks to the independent activators (1.4) , the plastic heat staking system (1) can be controlled in the right and left directions.

[0035] Thanks to the plastic heat staking system (1) in li-ion battery pouch type cell modules that can be programmed according to the module type and pin ranges beforehand, heat staking operations can be carried out under full automation control .

Claims

CLAIMS1. The invention is a plastic heat staking system (1) for li- ion battery pouch type cell modules, characterized in that it comprises staking guns (1.2) that melt the plastic pins and provide integrity by forming a curved structure in order to ensure the integrity of the connectors between the battery cells; staking units (1.1) in which the staking guns (1.2) are positioned; an overprint module (1.3) that applies overhead pressure force to provide flatness for the module and activators (1.4) that control the movement of the plastic heat staking system (1) in the right and left directions .

2. The plastic heat staking unit (1) according to claim 1, characterized in that it comprises staking units (1.1) having staking guns ( 1.1 ) positioned on the right and left sides of the conveyor system.

3. The plastic heat staking system (1) according to claim 1 or claim 2, characterized in that it comprises staking units (1.1) having 4 staking guns (1.1) positioned 1 on the right side of the conveyor system and 4 staking guns (1.1) positioned 1 on the left side of the conveyor system.

4. The plastic heat staking system (1) according to claim 1, characterized in that it comprises pneumatic cylinders that allow the staking guns (1.2) to move without damaging the battery .

5. The plastic heat staking system (1) according to claim 1, characterized in that it comprises a stopper that allows the conveyor system to be stopped in the desired position.

6. The plastic heat staking system (1) according to claim 1, characterized in that it comprises an overprint module (1.3) made of insulated cestamite material in its structure.

7. The overprint module (1.3) according to claim 1, characterized in that it comprises overprint module bearings (1.3.1) that provide support printing force from 4 corners and allow the module to remain stable in the center in the heat staking process from the sides.

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