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A thermal treatment method for a solar battery encapsulating adhesive film

A heat treatment method and packaging film technology, applied in the field of heat treatment, can solve problems such as high energy consumption, high temperature, and potential safety hazards

Active Publication Date: 2018-11-06
ZHEJIANG SINOPONT TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heating method of the die head lamp tube is a post-processing effect, which has little impact on the stability of the production process. However, the use of the die head lamp tube heating is concentrated in the die head area. With the increase of the production line speed, the processing effect will be greatly reduced. , At the same time, the energy consumption is high and the temperature is high, which will bring certain safety hazards

Method used

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  • A thermal treatment method for a solar battery encapsulating adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: As shown in the figure, a heat treatment method of a solar cell encapsulation adhesive film is carried out according to the following steps:

[0026] Using constant temperature and cooling shaping section processing:

[0027] The outer ring is covered with a 1mm rubber transmission belt;

[0028] A heat transfer medium with stable heat conduction can be added in the rubber to ensure the heat transfer effect;

[0029] A small temperature-controlling roller with water of different temperatures or heat-conducting oil-related heat-conducting medium is passed into the inner ring to control the temperature of the veneer and keep the rubber in a tensioned state;

[0030] Different gradient temperature control is used to ensure that the film can be well maintained in the extrusion heating state, and at the same time, it can be well cooled and shaped in the subsequent cooling process;

[0031] A is where the adhesive film is attached to the tape, the conveyor bel...

Embodiment 2

[0035] Embodiment 2: a kind of heat treatment method of solar cell encapsulating adhesive film, carry out according to the following steps:

[0036] Using constant temperature and cooling shaping section processing:

[0037] The outer ring is covered with a 3mm rubber transmission belt;

[0038] A heat transfer medium with stable heat conduction can be added in the rubber to ensure the heat transfer effect;

[0039] A small temperature-controlling roller with water of different temperatures or heat-conducting oil-related heat-conducting medium is passed into the inner ring to control the temperature of the veneer and keep the rubber in a tensioned state;

[0040] Different gradient temperature control is used to ensure that the film can be well maintained in the extrusion heating state, and at the same time, it can be well cooled and shaped in the subsequent cooling process;

[0041] A is where the adhesive film is attached to the tape. The conveyor belt A~B area is a temper...

Embodiment 3

[0045] Embodiment 3: A kind of heat treatment method of solar cell encapsulation adhesive film, carry out according to the following steps:

[0046] Using constant temperature and cooling shaping section processing:

[0047] The outer ring is covered with a 5mm rubber transmission belt;

[0048] A heat transfer medium with stable heat conduction can be added in the rubber to ensure the heat transfer effect;

[0049] A small temperature-controlling roller with water of different temperatures or heat-conducting oil-related heat-conducting medium is passed into the inner ring to control the temperature of the veneer and keep the rubber in a tensioned state;

[0050] Different gradient temperature control is used to ensure that the film can be well maintained in the extrusion heating state, and at the same time, it can be well cooled and shaped in the subsequent cooling process;

[0051] A is where the adhesive film is attached to the tape. The conveyor belt A~B area is a temper...

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Abstract

The invention relates to a thermal treatment method, particularly a thermal treatment method for a solar battery encapsulating adhesive film. The adhesive film includes a polyolefin adhesive film, anEVA adhesive film or PVB. Constant-temperature and cooling shaping workshop sections are adopted. The objective is to allow the temperature to be higher than the melting point, the softening temperature or glass transition temperature of a material so that a thermal stress problem of an extruded film material is solved at a high temperature, the shrinkage problem of the material is thoroughly solved, and an option for increasing the speed of a production line is provided.

Description

technical field [0001] The invention relates to a heat treatment method, in particular to a heat treatment method for a solar cell encapsulation adhesive film. The solar cell encapsulation adhesive film includes polyolefin adhesive film, EVA adhesive film or PVB. Background technique [0002] The solar packaging industry needs to package brittle and fragile silicon wafers, and requires that the products should not have problems such as lack of glue. Among them, shrinkage is one of the key factors in product control. [0003] Currently, the shrinkage control methods adopted are: [0004] Product formulation improvement and optimization. Its main direction is to improve the fluidity of the product, or to add some lubricants with internal lubrication effect. This method can effectively improve the shrinkage rate. However, the high fluidity can easily lead to cell displacement and thinner adhesive layer on the client side, resulting in a series of problems. The addition of lu...

Claims

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Application Information

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IPC IPC(8): B29C71/02H01L31/048
CPCB29C71/02H01L31/048Y02E10/50
Inventor 汪利刚周志英汪陈元王二江
Owner ZHEJIANG SINOPONT TECH
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