Solar battery module protection circuit, solar junction box and power generation system

A technology for solar cells and protection circuits, applied in circuits, photovoltaic power generation, electrical components, etc., can solve complex and other problems, and achieve the effect of satisfying safety and avoiding overheating
CN102738281AInactive Publication Date: 2012-10-17谢可勋 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
谢可勋
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a solar battery module protection circuit, a solar junction box and a power generation system, relating to the overheating protection field of a solar battery module generating system, particularly relating to the overheating protection of a solar battery module consisting of multiple series-wound solar cells, and more particularly relating to the overheating protection of a solar cell module protection circuit connected in parallel with a bypass diode. The solar battery module protection circuit is accomplished by the following technical project: the solar battery module protection circuit comprises a bypass diode and a normally-on overheating protection switch device, wherein the solar battery module protection circuit is reversely connected in parallel with a solar cell module consisting of series-wound solar cells, and the normally-on overheating protection switch device is connected in parallel and thermally coupled with the bypass diode can capable of automatically and electrically cut out the bypass circuit at a set temperature; and the normally-on overheating protection switch device can automatically return to the off normal state at the other set temperature. By using the protection circuit, the working temperature of the bypass diode can be automatically within the safe working temperature range.
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Description

technical field

[0001] The present invention relates to the field of overheat protection of solar battery module power generation systems, in particular to the overheat protection of solar battery modules composed of a plurality of serially connected solar battery pieces, and more particularly to the protection circuit of solar battery module modules connected in parallel with bypass diodes Overheating protection.

[0002] Background technique

[0003] In order to avoid overheating and damage to the battery module composed of several series-connected battery slices in the solar battery module power generation system, the solution of the prior art is as follows: figure 1 As shown, the arrow indicates sunlight, and the dotted line indicates that the number of solar cells connected in series can be multiple, not limited to the three actually drawn on the figure, and a pole is connected in parallel on a solar cell module composed of several cells connected in series. Reverse B...

Claims

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