Junction box used for cadmium telluride thin-film solar cells

Abstract

The invention discloses a junction box used for cadmium telluride thin-film solar cells. The junction box comprises a junction box body, two binding posts, a diode and a cable, wherein a mounting groove is formed in the junction box body; the mounting groove is formed in the back of the junction box body to protrude a bulge of the junction box body; the two binding posts are arranged on two sidesof the interior of the mounting groove in parallel; the diode is connected to the binding posts; and the binding posts are connected with the cable. The junction box also comprises a supporting blockcapable of being inserted into the mounting groove; the supporting block comprises a base plate, edge modules arranged on two sides of the base plate and a middle module arranged in the middle of thebase plate; a mounting gap is formed between each edge module and the middle module; a lug is arranged on the top of the mounting groove relative to the positions of the mounting gaps; and a pasting part is arranged at the bottom of the junction box body. The junction box is good in heat dissipation performance and high in sealing property.

Description

technical field [0001] The invention relates to a junction box for a cadmium telluride thin-film solar cell, belonging to the technical field of solar cell supporting equipment. Background technique [0002] The solar cell module junction box is very important in the composition of the solar module, and its main function is to connect the power generated by the solar cell with the external circuit. A general solar junction box is composed of a base, a box cover, and terminals located between the base and the box cover, and diodes are arranged between adjacent terminals. When the solar junction box is working, the diodes generate a lot of heat. If the heat cannot be dissipated in time, it will directly affect the performance of the solar junction box. [0003] In recent years, the research directions of solar cells are high conversion efficiency, low cost and high stability. Therefore, thin-film solar cells represented by cadmium telluride thin-film solar cells have attract...

AI Technical Summary

Problems solved by technology

Therefore, thin-film solar cells represented by cadmium telluride thin-film solar cells have attracted much attention, and many organizations and companies have begun research and testing. Cadmium telluride thin-film solar cells are referred to as CdTe cells. It is a p-type CdTe and n Cd-type Cd heterojunction-based thin-film solar cells, cadmium telluride thin-film solar cells are the easiest to manufacture in solar cells, so it has the fastest progress towards commercialization, due to the high conversion efficiency of cadmium telluride cells, current and voltage bias Large, and the existing junction box has poor heat dissipation effect, so that the junction box of traditional crystalline silicon solar cells and amorphous silicon solar cells is not suitable for cadmium telluride cells

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