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Junction box to protect individual solar panels from overheating

A technology of solar panels and junction boxes, applied in the field of junction boxes, to achieve the effect of reducing downtime and maintenance costs, reducing the risk of damage, and reducing output power reduction

Inactive Publication Date: 2009-08-05
FPE FISCHER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, the question of how to ensure continuous contact between the junction box and the diode is not resolved

Method used

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  • Junction box to protect individual solar panels from overheating
  • Junction box to protect individual solar panels from overheating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 The junction box shown in is composed of a metal housing 1, on the outer wall of which heat dissipation fins 2 are pressed. On the inner wall of the housing 1 is a receiving device 3 into which the Schottky diode 4 is pressed by means of a spring clip 5 . In addition, the connecting plate 6 can be seen.

[0023] Between the diode 4 and the housing 1 is an insulating layer made of silicone rubber with high thermal conductivity. This structure can prevent the diode 4 from being damaged due to overheating.

[0024] The inner connecting plate 6 has a plastic jacket in order to increase the electrical breakdown strength in this area. As a result, increasingly stringent safety requirements in the future are met without any problems.

[0025] Such as figure 2 As shown, there is a circular hole 8 on the housing cover 7 . A soft and weather-resistant silicone rubber support ring 9 is mounted on the edge of the circular hole. Heat-press one deck waterproof and br...

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PUM

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Abstract

The invention relates to a junction box for solar panels, with which the heat produced in the protecting diodes, MOSFETs, or other suitable power semiconductors of a solar panel is safely carried off. The electronic components are pressed against the housing (1) or into recesses (3) in the connection box that match the geometry of the components, by means of pressure elements, wherein there is electrical insulation, preferably a thermally conductive silicone rubber, between the housing (1) and the components.

Description

technical field [0001] The invention relates to a junction box, which can well dissipate the heat generated by the protection diode in the solar battery panel. Background technique [0002] According to the prior art, solar equipment has solar panels of various specifications, wherein its specification depends on the number of solar cells connected in series. Solar cells arranged in multiple rows form large solar panels. Each row of solar cells is bridged by protection diodes driven in interlocking direction. Schottky diodes are most commonly used for this purpose, since their voltage drop in the conduction direction is lower than in conventional silicon crystal diodes. [0003] During the operation of solar cells it often happens that a certain solar cell is shaded, in which case the potential of the cathode of the diode is so low that the protective diode will conduct. [0004] If there is no protection diode, the zener effect in the shaded solar cell will cause excessi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/05H05K7/20
CPCY02E10/50H05K7/2049H05K7/20472H01L31/0486H01R9/223H05K7/20409H01L31/0485H02S40/34H02S40/345
Inventor 乌尔里希·菲舍尔罗兰德·普费弗贝恩德·维勒查尔斯·胡
Owner FPE FISCHER GMBH
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