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Welding-performance testing and tester for solar battery and its assembly

A technology for solar cells and welding performance, used in welding equipment, manufacturing tools, metal processing equipment, etc., can solve problems affecting the reliability of power output components, welding area detection, and increasing series resistance.

Inactive Publication Date: 2007-04-04
SHANGHAI SOLAR ENERGY S&T
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AI Technical Summary

Problems solved by technology

Existing welding performance testing devices only test its firmness, and do not test all welding areas, as long as they generally meet certain tensile test conditions
However, if all components are not tested during production, there will be welding that does not meet the regulations, and it cannot be judged one by one by human eyes. If the welding is not good after lamination, the series resistance will increase, the power loss will increase, and the overall power output will be affected. and component reliability

Method used

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  • Welding-performance testing and tester for solar battery and its assembly

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with drawings and embodiments.

[0011] A solar cell and its component welding performance testing process proposed in the first embodiment of the present invention, passes a certain amount of current to the solar cell or component to change the temperature of the welding area; if the welding is not good, the contact resistance will be large, The temperature change is large, so by collecting the data of temperature change, the welding performance parameters can be obtained by image processing and data processing and analysis software in the computer.

[0012] As shown in Figure 1, the solar cell and its component welding performance tester dedicated to the first embodiment is composed of a current and voltage controller 1, a wire 2, an infrared thermometer 4 and a computer 6, and the current and voltage controller 1 passes through the wire 2 is connected to the solar cell or component 3; the infrared t...

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Abstract

A technology for testing the weld performance of solar cell and its module includes such steps as making an electric current with a certain value to flow through a solar cell or its module, acquiring the data about the temp variation in the region to be welded, image and data processing, and analyzing its weld performance according to its contact resistance. Its test instrument is also disclosed.

Description

technical field [0001] The invention relates to a process for testing the welding performance of a solar battery interconnection bar and a battery electrode; the invention also relates to a special detector for the above-mentioned test process. Background technique [0002] During the series and parallel connection of solar cells, the welding performance of the interconnection bars and the battery electrodes not only affects the overall power of the components, but also affects the life and reliability of the components. Existing welding performance testing devices only test its firmness, and do not test all welding areas, as long as they generally meet certain tensile test conditions. However, if all components are not tested during production, there will be welding that does not meet the regulations, and it cannot be judged one by one by human eyes. If the welding is not good after lamination, the series resistance will increase, the power loss will increase, and the overa...

Claims

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Application Information

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IPC IPC(8): B23K31/12
Inventor 李洪波
Owner SHANGHAI SOLAR ENERGY S&T
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