Photovoltaic capacitor and processing process thereof

Abstract

The invention provides a photovoltaic capacitor. An upper surface of the capacitor core is provided with a coated plate. A lower surface of the capacitor core is provided with a sprayed metal plate. The capacitor core is installed in a shell. A filler is arranged between the capacitor core and the shell. An upper end and a lower end of the capacitor core are wave cutting surfaces. An upper end ofthe shell is provided with an upper lead-out terminal. A lower part of the shell is provided with a lower lead-out terminal. The upper lead-out terminal and the lower lead-out terminal are connected to the sprayed metal plate of the capacitor core. The processing process of the photovoltaic capacitor comprises the steps of (a) cutting the capacitor core 4 by wave cutting process, and (b) placing the cut capacitor core in the shell 1 and filling the gap between the shell 1 and the capacitor core 4 with epoxy resin. According to the photovoltaic capacitor, the stability and accuracy of a capacity are ensured, an inductance value is low, the strength of resistance to large voltage and inrush current is greatly improved, the insulation of the capacitor, capacitor stability and life reliabilityare improved, the heat dissipation function is good, and the long-term operation of the capacitor is ensured.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to photovoltaic capacitors. Background technique [0002] Due to the high operating frequency of photovoltaic capacitors, large ripples and harmonic currents are generated, and the capacitors generate serious heat. At the same time, photovoltaic equipment is used in harsh environmental conditions, and has been working in high temperature and high humidity for a long time, so the requirements for capacitors are more stringent. Therefore, in order to be able to be used under high temperature and high humidity conditions, it must have the characteristics of large overcurrent capability, high withstand voltage, and long life, so as to effectively save costs. Contents of the invention [0003] In order to overcome the above-mentioned problems existing in the photovoltaic capacitor, the present invention provides a photovoltaic capacitor. [0004] The technical scheme adopted by the...

AI Technical Summary

Problems solved by technology

[0002] Due to the high operating frequency of photovoltaic capacitors, large ripples and harmonic currents are generated, and the capacitors generate serious heat. At the same time, photovoltaic equipment is used in harsh environmental conditions, and has been working in high temperature and high humidity for a long time, so the requirements for capacitors are more stringent.

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