Battery pick-out equipment for hot-spot test of photovoltaic components

Abstract

The invention relates to battery pick-out equipment for a hot-spot test of photovoltaic components. The battery pick-out equipment comprises a machine frame and is characterized in that baffle guide rails and photovoltaic component guide rails are mounted on a machine frame, a photovoltaic component support frame is mounted on the photovoltaic component guide rails and can move along the photovoltaic component guide rails; steady-state light sources and a plurality of light sources in array distribution are mounted on the machine frame above the photovoltaic component support frame; one or more group of baffle components are mounted between the steady-state light sources and the photovoltaic component support frame; the baffle components comprise baffle supports of which the two ends are arranged on the baffle guide rails, and the baffle supports can move along the baffle guide rails; a plurality of baffles capable of shielding the steady-state light sources are arranged on the baffle supports; a space for placing photovoltaic components is formed between the baffles and the photovoltaic component support frame; and a data acquisition circuit is mounted at one end of the machine frame. The battery pick-out equipment only requires measurement of the reverse dark-state leakage current of batteries, and can achieve multi-way monitoring at the same time, thereby greatly speeding up the test.

Description

technical field [0001] The invention relates to a device for testing the performance of a photovoltaic module, in particular to a device for selecting cells for a hot spot test of a photovoltaic module. Background technique [0002] Photovoltaic technology is a technology that uses renewable energy such as sunlight to generate electricity. The current mainstream product is a module that uses crystalline silicon as the photoelectric conversion material. The circuit of this module is composed of multiple cells connected in series (as shown in Figure 1). However, when the battery is partially covered or the battery is broken, the component will generate a lot of heat locally, which is called the "hot spot effect". In severe cases, the backplane will burn through and even cause a fire. The severity of the hot spot effect is related to the circuit structure of the module and the quality of each solar cell. Due to the randomness of the mass distribution of batteries in the compon...

AI Technical Summary

Problems solved by technology

Due to the need for a lot of work time and manpower, this method can be barely realized in the detection of small batches, but it is difficult to be used in the detection of the whole batch of products in the production enterprise.

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