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Solar cell module with a plurality of junction boxes

A technology of solar cell components and multi-junction boxes, which is applied in the field of solar cells, can solve the problems of low output power and large loss, and achieve the effects of improving component efficiency, reducing power loss, and reducing costs

Active Publication Date: 2011-01-26
TRINA SOLAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies in the prior art and provide a solar cell module with multiple junction boxes, by increasing the number of junction boxes and reducing the length of the connecting ribbon to solve the problems of solar cells in the prior art. The problem of low output power and high loss of components

Method used

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  • Solar cell module with a plurality of junction boxes
  • Solar cell module with a plurality of junction boxes
  • Solar cell module with a plurality of junction boxes

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Embodiment Construction

[0013] The present invention will now be further explained in conjunction with the drawings. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0014] Such as figure 1 Shown is a solar cell module with multiple junction boxes in which the solar cells are arranged in an even number, including solar cell panels 2 and junction boxes. The solar cell panels 2 are connected in series by interconnecting ribbons 1 to form a solar cell string, two adjacent rows One end of the solar cell string is connected by a bus ribbon 5, the junction box includes a diode junction box 3 and two diode-free junction boxes 4, the diode junction box 3 and the diode-free junction box 4 are respectively through bus welding The belt 5 is connected to the other end of the solar battery string. The diode junction box 3 and the diode-free junction box...

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Abstract

The invention discloses a solar cell module with a plurality of junction boxes, comprising a solar panel and junction boxes which are connected in series by interconnected welding belts; each junction box comprises a diode junction box with a by-pass function and a no-diode junction box with an electric output function; the diode junction box and the no-diode junction box are respectively connected with the solar panel by collecting the welding belts and are connected by external cable lines, and a junction box connecting line is connected to the no-diode junction box. The invention solves the problems of lower output power and larger loss when the traditional solar cell module is applied by adding the number of the junction boxes and reducing the length of the connected welding belts.

Description

Technical field [0001] The invention relates to the technical field of solar cells, in particular to a solar cell module with multiple junction boxes. Background technique [0002] At present, solar energy utilization has been widely used. Generally speaking, a single solar cell has a low voltage. It is necessary to connect dozens of cells in series with solder ribbons, and use protective materials and accessories to package them into solar cell modules. The current soldering strips used to connect solar cells generally use copper substrates plated with tin-lead-silver alloy. Considering the packaging process of solar cell modules, the soldering strips cannot be designed to be too wide or thick, so the resistance is large. In addition, the existing solar cell modules usually use a junction box, which is glued on the back of the solar cell module. There are multiple bypass diodes in the junction box. When the module is in normal operation, the diode is in the The reverse bias doe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H02G3/08
CPCH01L31/0485Y02E10/50H01L31/042H02S40/34H01L31/0504
Inventor 张臻
Owner TRINA SOLAR CO LTD