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Devices for measuring electrical characteristics of solar cells in non-permanent electrical contact

A technology of solar cells and contact equipment, applied in photovoltaic power generation, electrical components, monitoring of photovoltaic systems, etc., can solve problems such as consumption

Inactive Publication Date: 2017-08-25
UNIV KONSTANZ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the above-mentioned new solar cell designs without the wide bus straps also have problems, in particular: in order to accurately determine the I-V characteristic curve of the solar cell, each individual pin must make multiple electrical contacts
And producing multiple contact parts will inevitably cause huge consumption

Method used

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  • Devices for measuring electrical characteristics of solar cells in non-permanent electrical contact
  • Devices for measuring electrical characteristics of solar cells in non-permanent electrical contact
  • Devices for measuring electrical characteristics of solar cells in non-permanent electrical contact

Examples

Experimental program
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Embodiment Construction

[0048] Figure 1 to Figure 3 An embodiment of a contacting device 1 for non-permanent electrical contacting of solar cells 3 is shown. figure 2 In addition, schematic components of a measuring device 45 are shown, which are able to determine the I-V characteristic curve of the solar cell 3 by means of the contacting device 1 .

[0049]The contact device 1 has a rigid carrier plate 5 and a plurality of electrical lines 7 . Around the carrier plate 5 there is a frame 9 which holds the carrier plate 5 and to which the carrier plate 5 is connected in a hermetic manner. The frame 9 can be arranged on a holding plate 11 on which the solar cells 3 can also be arranged. The frame 9 can be precisely positioned on the holding plate 11 by means of pins 13 arranged on the holding plate 11 and corresponding positioning holes 17 provided in the frame 9 . A seal 15 is provided between the frame 9 and the holding plate 11 . A negative pressure can be applied in the interior of the contac...

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Abstract

The invention relates to a contacting device (1) and a measuring device (45), which can be used for non-permanent electrical contacting of solar cells (3) when determining electrical properties such as an I-V characteristic of the solar cell (3) as part of a solar cell classification. The contacting device (1) has a rigid optically transparent carrier plate (5), made of glass for example. A plurality of electrical leads (7) are arranged on the carrier plate (5) along a surface of the carrier plate (5) and protruding therefrom. For example, the electrical leads (7) can run along trench-like recesses (23) formed in the carrier plate (5). The electrical leads (7) can make contact with contact fingers (21) of the solar cell (3) uniformly and preferably under conditions such as those also prevailing in the encapsulated state of the solar cell (3) in a solar module; in particular, solar cells (3) without bus bars can also be contacted.

Description

technical field [0001] The invention relates to a contacting device for non-permanent electrical contacting of solar cells and its use in a measuring device for determining electrical properties, for example a current-voltage characteristic curve of a solar cell. Background technique [0002] Solar cells are used as photovoltaic elements to convert light into electric current. In this case, the spatially separated pairs of photogenerated charge carriers, for example at the pn junction, must be introduced into an external circuit by means of the electrical contacts of the solar cell. For this purpose, electrical contacting means are provided both in the emitter region and in the base region of the solar cell. [0003] In conventional solar cells, the emissive region is usually disposed on the front side of the solar cell facing the incident light. The opposite requirements have to be taken into account when assembling the electrical contacting device on the front side of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/10
CPCH02S50/00H02S50/10Y02E10/50
Inventor 吉绍·黑恩阿克塞尔·埃尔古特斯蒂芬·布劳恩
Owner UNIV KONSTANZ