Test circuit board used for sorting machine tables

Abstract

The invention discloses a test circuit board used for sorting machine tables. The test circuit board comprises a circuit backplane, polarity bases, a positive electrode switch and a negative electrode switch, wherein at least n negative electrode circuits are arranged on the front surface of the circuit backplane in parallel; at least m positive electrode circuits are arranged on the back surface of the circuit backplane in parallel; the negative electrode circuits and the positive electrode circuits are perpendicularly arranged; n*m pairs of the polarity bases are arranged on the circuit backplane; the polarity bases are used for being connected with solder strips of to-be-tested battery pieces; in each pair of the polarity bases, one polarity base is connected with the positive electrode circuit while the other polarity base is connected with the negative electrode circuit; the positive electrode switch is provided with m gears, and each gear is connected with one positive electrode circuit through an electric line; the negative electrode switch is provided with n gears, and each gear is connected with one negative electrode circuit through an electric line; and the m and the n are both positive integers, wherein m is greater than 1 and less than or equal to 5, and n is greater than 1 and less than or equal to 5. The test circuit board used for sorting machine tables provided by the invention is simple in preparation, low in cost, and high in accuracy and efficiency.

Description

technical field [0001] The invention relates to the field of solar photovoltaic equipment, in particular to a test circuit board used for a sorting machine. Background technique [0002] With the depletion of global energy sources, people pay more and more attention to environmentally friendly and renewable solar energy resources. As the field of solar cells has received more and more attention, the current silicon solar cell industry is developing rapidly, and the technology is gradually becoming mature. It has gradually developed from low investment and high profit in the early stage of development to low investment and low profit, and the competition is becoming increasingly fierce. [0003] The testing and sorting machine is specially used for the screening of solar monocrystalline silicon cells and polycrystalline silicon cells. It mainly measures the relevant electrical parameters of the solar cells by simulating the spectrum of the solar light source; classifies the ...

AI Technical Summary

Problems solved by technology

Due to the uniformity of the test, it is necessary to open the dark box of the test sorting machine, so more external light sources will be introduced, which will affect the test effect; in addition, because it is too manual, it is difficult to ensure that the glass surface of the small sample is in a vertical state with the light source of the lamp tube, and The height of each test cannot be kept consistent

The manual movement is slow, resulting in a long time of occupying the test sorting machine

Due to many uncertainties, the accuracy of the test cannot be guaranteed at all

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