Hot plate uniformly heating technique for use in solar cell assembly process

Abstract

The invention discloses a hot plate uniformly heating technique for use in a solar cell assembly process, which comprises the following steps: 1, placing a solar cell component to be packaged in a vacuum chamber comprised of a heating worktable and an upper cover of a solar cell laminating machine and sealing the vacuum chamber; 2, vacuumizing the vacuum chamber; and 3, after the vacuumization, closing a vacuum valve to heat and pressurize the solar cell component placed in a vacuum environment in the vacuum chamber, measuring the temperature of a temperature control point in the heating worktable and performing thermal compensation according to feedback result. In the invention, the thermal compensation process for compensating for edge radiation of the heating worktable is added to the original solar cell laminating process, a used laminating machine divides the heating worktable into a secondary heating area and a primary heating area, temperature control points are arranged in the secondary and primary heating areas respectively, the heating temperature, according to the feedback of the temperature control points, is adjusted for performing temperature compensation, and the technical drawback of low solar cell component quality caused by unqualified heating temperature or large temperature difference due to the edge radiation in the conventional heating laminating machine is overcome.

Description

technical field [0001] The invention relates to a process technology in the production of solar battery components, in particular to a uniform heating technology of a hot plate suitable for the solar battery assembly process. Background technique [0002] With the rapid development of the economy and the continuous advancement of science and technology, the consumption and demand for energy in social life has also increased sharply. At present, most of the energy widely used by human beings is still fossil energy represented by coal and oil. Since the development of fossil energy, although its exploitation and use technology has been very mature, the accompanying problems cannot be ignored. First of all, fossil energy is a non-renewable resource, and its total storage must be an irreversible process of continuous reduction; second, the use of fossil energy will produce a lot of pollution, and the carbon dioxide, sulfur dioxide and nitrogen base produced during the combustio...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a technology for uniform heating of hot plates in the solar cell assembly process. Using this technical solution can realize uniform heating of solar cell components, which not only solves the potential safety hazards that are prone to occur in the existing oil heating lamination At the same time, it solves the problem of poor temperature uniformity produced by the traditional electric heating method, and it is difficult to achieve temperature convergence in a large area, and the invention has complete technology, good controllability, high quality of finished products, and low equipment failure rate , maintenance is also relatively convenient, suitable for a large solar cell production country such as our country to be widely used

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