Double-chip diode module

Abstract

The invention relates to a double-chip diode module. The double-chip diode module comprises a first electric conductor, a second electric conductor, a first chip, a second chip, a first plastic package body and a second plastic package body, wherein the first chip is arranged between the head end of the first electric conductor and the tail end of the second electric conductor, the first plastic package body is arranged outside the first chip, the second chip is arranged between the tail end of the first electric conductor and the head end of the second electric conductor, and a second plasticpackage body is arranged outside the second chip. According to the invention, a double-chip shunting mode is adopted to reduce the power consumption of the chips during forward working, and the samecurrent input power consumption can be reduced by half. According to the double-chip diode module, the heat dissipation area of a single chip is larger, the chips are arranged separately, the influence of mutual heat is reduced, and the rated current of a junction box is increased to a certain extent. According to the double-chip diode module, the chips are directly connected with the electric conductors, thereby reducing the intermediate connection, reducing the heat conduction distance, and enabling the heat dissipation to be quicker.

Description

technical field [0001] The present invention relates to a diode module in a junction box for crystalline silicon solar cell components, in particular to a two-chip diode module. Background technique [0002] At present, photovoltaic modules are mainly composed of photovoltaic panels, frames, EVA sealants, backplanes and junction boxes. Among them, the junction box is the most important circuit structure in the photovoltaic module. The junction box not only controls the effective connection between the components, but also has a bypass protection function for the respective photovoltaic modules. Existing conventional junction boxes are mainly composed of plastic box cover, metal conductors, bypass diodes, cables and connectors, and the connection function and bypass protection function of the box are largely the same as diodes and conductors. It is determined by the internal circuit module of the junction box composed of the body, so a good internal circuit structure design ...

AI Technical Summary

Problems solved by technology

[0003] With the continuous increase of battery size, the demand for rated current is also increasing. The rated current demand of the existing full-cell battery and half-cell battery with a side length of 210mm reaches more than 25A, and the existing conventional diode circuit is increasingly unable to meet the actual demand. In order to meet the existing actual needs, it is necessary to design and develop a diode circuit module with lower power consumption, faster and better heat dissipation

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