Qinhuangdao Shengcheng Automation Equipment Co., Ltd.
Qinhuangdao Shengcheng Automation Equipment Co., Ltd.

Solar Panel Production Equipment - Vacuum Laminator

The working principles of vacuum laminator

Vacuum laminator, as the name suggests, is a mechanical equipment that compresses multiple layers of materials together.

The vacuum laminator is a mechanical equipment that compresses multiple layers of materials under vacuum conditions.

The vacuum laminator is applied to the solar cell assembly production line. We call it the solar cell panel vacuum laminator. Regardless of which operation the vacuum laminator is applied to, the working principle is the same, that is to apply a certain pressure on the surface of multiple layers of materials and tightly compress these materials together. The difference lies in the different conditions for compression according to the purpose of lamination.

The role of vacuum laminator in the production of solar cells

The process flow of the solar cell panel assembly production line is as follows:

Front End - Laying - Laminating - Curing - Frame Assembly - Testing

The purpose of the process is: Raw Materials - Panel - Finishing

The solar cell panel vacuum laminator is the key equipment to achieve the transition from raw materials to solar cell panels.

Before laminating, from the laying process, we can see the material composition of the solar cell panel (using ordinary modules as an example):

  • Glass

  • EVA

  • Connected monocrystalline cells

  • EVA

  • Backplate

The role of the vacuum laminator is to compress these materials together and require the following goals to be achieved after compression:

  • No bubbles (<2);

  • The fused materials must be integrated;

  • There must be a certain bonding strength between the incompatible materials.

To achieve these three goals, the following conditions must be met:

Pressure, temperature, vacuum degree, and time are the necessary conditions for producing solar cell panels with vacuum laminators.

Definition: The vacuum laminator for solar cell components is a laminating equipment that meets all of the above four conditions.

The structure of vacuum laminator

Composition: Structural part + Temperature control part + Power system + Vacuum system + Control part, a total of 5 parts. Only the structure part is introduced here:

The solar cell panel vacuum laminator structure can be divided into upper chamber vacuum, lower chamber vacuum, upper cover, lower box, rack, a total of 6 parts.

The operation process of each structural part in the production of solar cell panels:

Open the lid - vacuum the upper chamber - put in the components to be pressed - close the lid - evacuate the lower chamber - inflate the upper chamber (lamination) - evacuate the lower chamber - open the lid - remove the cell plate.

The important parameters of vacuum laminator

  • Main material: aluminum alloy or stainless steel. It is not recommended to use ordinary steel.

  • Vacuum pumping rate.

  • Temperature control accuracy.

  • Temperature uniformity.

  • Lamination height.

  • How to open.

  • Total power consumption.

Related Solar Module Laminator News
Aug. 22 2022
Principle and Advantages of Oil Heating Solar Module Laminator
The principle of oil-heated solar cell module laminatorThe principle of laminating machine for heating oil solar cell module: turn on the power switch, and set the working temperature of the packaging...
Oct. 15 2021
Industry News
Anhui: From January to August, the Output of Solar Cells (Including Modules) was 16.7GW with a Cumulative Increase of Nearly 50%
The photovoltaic industry is an important support to promote energy transformation and upgrading and achieve green development. It is also a rare strategic emerging industry in China that has formed a...
Jun. 01 2023
Industry News
Working Principles and Common Problems of Fully Automatic Solar Laminator
The working principle of the fully automatic solar laminatorThe solar laminator is a mechanical device that presses multiple layers of materials under vacuum conditions.Solar encapsulation is a materi...