a capacitor

Abstract

The invention discloses a capacitor, which comprises a shell, leads, an insulated thin film and an electrolyte solution, wherein the top position of the shell is provided with a heightening table; two lead boxes are arranged on the heightening table; two leads are led out of the two lead boxes respectively; a cylinder inside the shell is full of the electrolyte solution; sealing resin is arranged at places where the lead boxes and the heightening table are connected and between the heightening table and the shell top part are connected; the periphery of the shell is coated with glass fiber heat insulation cotton; the glass fiber heat insulation cotton is fixed on the shell by using an emulsion adhesive; and the glass fiber heat insulation cotton is coated with a layer of insulated thin film. The sealing performance is good; the glass fiber heat insulation cotton has good flame-retardant insulated performance; a high-temperature fuse can sense inner over heat due to abnormity, a power supply circuit is cut off, the judgment is accurate, safety accidents generated due to the capacitor can be prevented fundamentally, the use is safe, the lead is telescopic freely through a winding group inside the lead box, and the operation is convenient.

Description

technical field [0001] The invention relates to the field of electrical facilities, in particular to a capacitor. Background technique [0002] At present, the existing capacitors are usually referred to simply as capacitance, which is a "charged container" and a device that holds charges. Capacitors are one of the most widely used electronic components in electronic equipment, and are widely used in DC blocking, coupling, bypass, filtering, tuning loops, energy conversion, control, etc. in circuits. In an AC circuit, because the direction of the current changes as a function of time, and the charging and discharging process of the capacitor is time-consuming, the temperature inside the capacitor will become higher and higher as the working time increases. State-of-the-art capacitors generally solve the above problems by adding insulating materials, but the capacitor still has a phenomenon of thermal expansion that causes the shell to rupture, which reduces the service life...

AI Technical Summary

Problems solved by technology

In an AC circuit, because the direction of the current changes as a function of time, and the charging and discharging process of the capacitor is time-consuming, the temperature inside the capacitor will become higher and higher as the working time increases. State-of-the-art capacitors generally solve the above problems by adding insulating materials, but the thermal expansion of the capacitor still causes the shell to rupture, which reduces the service life of the capacitor. At the same time, the process of shell rupture is dangerous and prone to accidents. The safety is low, and the lead wire is exposed outside the shell, which is easy to be corroded, and the lead wire length is fixed, the flexibility is low, it is inconvenient to use, and the lead wire may be broken or cut short, resulting in the capacitor being scrapped and difficult to install. Increased production cost input

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