Multi-main-grid photovoltaic module and preparation method thereof

Abstract

The invention discloses a multi-main-grid photovoltaic module comprising a frame. The frame comprises an upper frame and a lower frame; a main grid is fixedly welded in the frame; an auxiliary grid iswelded between the main grid and the frame; and a photovoltaic panel is welded in the auxiliary grid. The invention also provides a preparation method of the multi-main-grid photovoltaic module. Thepreparation method comprises the following steps: S1, preparing and cutting a photovoltaic panel; S2, packaging a photovoltaic silica gel sheet; S3, installing a solar panel on a battery module; S4, welding a frame, main grids and auxiliary grids; S5, installing the photovoltaic panel inside the auxiliary grids; and S6, inspecting the installed photovoltaic panel. According to the invention, multiple groups of main grids and auxiliary grids are arranged in the photovoltaic panel, so that the consumption of voltage caused by impedance is reduced, the cost of resistors is uniformly reduced, the reliability of the photovoltaic panel is improved, and the photovoltaic panel is provided with multiple groups of grids, so that the photovoltaic panel is not cracked, broken and broken during production, and the stress of multiple groups of batteries is dispersed.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic panels, and in particular relates to a multi-busbar photovoltaic module, and also relates to a preparation method of a multi-busbar photovoltaic module. Background technique [0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. It is mainly composed of three parts: solar panels (components), controllers and inverters, and the main components are composed of electronic components. After the solar cells are connected in series, they can be packaged and protected to form a large-area solar cell module, and then cooperate with power controllers and other components to form a photovoltaic power generation device. The main principle of photovoltaic power generation is the photoelectric effect of semiconductors. When a photon irradiates a metal, its energy can be completely a...

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Problems solved by technology

[0003] For example, the solar cell, solar cell module and its preparation method disclosed by the authorized announcement number CN102760778A, although it realizes the interconnection bar to assemble the solar cell module, the cost of interconnection bar connection is low; each interconnection bar is basically on the same plane , Connecting two solar cells on the same straight line, it is not easy to produce cracks at the edge of the solar cell, high reliability, low cost, high production efficiency, and can ensure high conversion efficiency of the solar cell. In addition, because the first solar cell on the back The existence of an insulating dielectric layer, the insulation and isolation characteristics of solar cells are good, but it does not solve the problem of high impedance of existing photovoltaic panels, resulting in a large amount of voltage consumption, and the cost of photovoltaic panels, and makes photovoltaic panels unstable and prone to cracks. , broken grid, crack, and uniform resistance distribution, etc., so we propose a multi-busbar photovoltaic module and its preparation method

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