Wiring box for solar photovoltaic power generation system

Abstract

The invention discloses a wiring box for a solar photovoltaic generation system, which comprises an upper cover and a box body, wherein the upper cover is covered on the box body, at least two wiring seats are arranged in the box body, two adjacent wiring seats are electrically connected through a bypass diode, one end of the wiring seat is equipped with an input end, the input end is electrically connected with a lead wire of a solar panel, the other end is electrically connected with a wiring terminal which is arranged on one side of the box body, the upper surface of the upper cover is equipped with a heat dissipating device, the heat dissipating device comprises a plurality of fins which are oblique corresponding to the upper surface of the upper cover, water accumulation grooves are formed on the upper surface of the upper cover between the adjacent fins, the two sides of the box body are respectively equipped with air holes, and a waterproof ventilated membrane and a metal crystallization filter element are orderly arranged in the air hole from the outer portion to the inner portion. Compared with a common wiring box, the wiring box for the solar photovoltaic generation system has excellent waterproof, moistureproof and heat dissipation performance, and the service life is greatly increased.

Description

technical field [0001] The invention relates to a wiring assembly for a solar photovoltaic power generation system, in particular to a junction box for a solar photovoltaic power generation system with good waterproof, moisture-proof and heat dissipation performances. Background technique [0002] The junction box for solar photovoltaic power generation system is a transition device installed on the solar panel to connect the lead wire of the solar panel with the external lead wire. There are generally multiple bypass diodes inside, and the bypass diode is used to prevent Reverse charging damages the cells and prevents the disconnection of one photocell from rendering the entire battery pack unusable. [0003] When solar photovoltaic power generation, a large current will flow through the bypass diode in the solar junction box, causing the bypass diode to heat up. If the heat is not dissipated in time, the performance of the bypass diode working for a long time under continu...

AI Technical Summary

Problems solved by technology

[0005] Commonly used junction boxes for solar photovoltaic power generation systems do not have heat dissipation equipment and are all sealed. Although the waterproof effect is good, the heat dissipation performance is poor.

For the heat dissipation performance, there is an improved junction box for solar photovoltaic power generation system. It is a sealed structure with a heat sink inside and installed around the bypass diode. Although this can dissipate the heat of the bypass diode itself, but , obviously, the heat still stays inside the sealed box and cannot be dissipated quickly, and the heat dissipation performance needs to be further improved

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