Split series solar junction box

Abstract

The invention discloses a split series solar junction box which comprises a base and a box body, wherein the base and the box body are connected and are made from heat conduction materials; multiple groups of terminal blocks are distributed in parallel between the base and the box body; and every two terminal blocks are connected through one or multiple diodes so as to perform a bypass protection function. Each terminal block is correspondingly connected with a bus bar on a solar component, and the terminal block and the diode are encapsulated by heat conductive adhesives. According to the junction box disclosed by the invention, the radiating effect of the junction box is enhanced, a solar photovoltaic cell component works more stably, and solar photovoltaic components with different power adopt the same junction boxes of three specifications, thereby being convenient in production and management.

Description

technical field [0001] The invention relates to a solar junction box, in particular to a solar junction box which adopts multiple splits connected in series. Background technique [0002] At present, the junction boxes of solar photovoltaic modules are all connected by one module and one junction box. This connection method has the following two problems: 1. The bus bar leading to the junction box in the module and the connecting cable between the junction boxes are too long. The resistance of the wire is large and the loss is large, which causes the output power of the module to drop; 2. Since only one junction box is used, the cells of the solar photovoltaic module are grouped less, and the voltage of each group is higher due to the less grouping. The junction box using this connection method has the following two problems. 1. The heat dissipation of the junction box is not good, which directly affects the normal operation of the components. 2. Different power components u...

AI Technical Summary

Problems solved by technology

[0002] At present, the junction boxes of solar photovoltaic modules are all connected by one module and one junction box. This connection method has the following two problems: 1. The bus bar leading to the junction box in the module and the connecting cable between the junction boxes are too long. The resistance of the wire is large and the loss is large, which causes the output power of the module to drop; 2. Since only one junction box is used, the cells of the solar photovoltaic module are grouped less, and the voltage of each group is higher due to the less grouping

However, the junction box using this connection method has the following two problems. 1. The heat dissipation of the junction box is not good, which directly affects the normal operation of the components. 2. Different power components use different junction boxes, and the variety is not conducive to management.

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