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Aluminum electrolytic capacitor electrolyte solute for industrial frequency converter

A technology of aluminum electrolytic capacitors and frequency converters, applied in electrolytic capacitors, capacitors, circuits, etc., can solve the problems of reducing the flashover voltage of the electrolyte, adversely affecting the service life of capacitors, etc., and achieve high conductivity characteristics, high flashover voltage, good The effect of forming ability

Inactive Publication Date: 2013-12-11
JIANGSU SHENYANG ELEVATOR PARTS
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Problems solved by technology

Currently commonly used high-pressure solutes such as ammonium benzoate, ammonium azelate, ammonium hydrogen azelate, and ammonium pentaborate, etc., can increase the conductivity of the electrolyte, but also reduce the flash voltage of the electrolyte, and ammonium pentaborate It is not conducive to improving the service life of capacitors

Method used

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Embodiment Construction

[0007] Selection of electrolyte solutes for aluminum electrolytic capacitors used in industrial frequency converters: 1.6-dodecanoic acid ammonium ammonium salt is a long carbon chain organic carboxylate ammonium salt, which is a solute with high flash fire voltage. It is not easy to produce reactions such as thermal decomposition, amidation and esterification, which improves its chemical stability at high temperature and solubility in ethylene glycol solvents. It is the preferred solute for the working electrolyte of high-voltage and large-capacity aluminum electrolytic capacitors. By adding 20% ​​ammonium dodecanoate to the working electrolyte, the conductivity of the electrolyte is 1000 μS / cm at 30°C. When the amount added increases, the conductivity of the electrolyte does not increase significantly. In order to improve the conductivity of the electrolyte and reduce the loss of the capacitor, a second solute needs to be added. Currently commonly used high-pressure solutes ...

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Abstract

Aluminum electrolytic capacitor electrolyte solute for an industrial frequency converter is characterized in that a system with 1.6-ammonium dodecanedioate used as main solute and ammonium sebate used as auxiliary solute is adopted in a working electrolyte. Due to the fact that the system with the 1.6-ammonium dodecanedioate used as the main solute and the ammonium sebate used as the auxiliary solute is adopted in the working electrolyte, the aluminum electrolytic capacitor electrolyte solute for the industrial frequency converter has the advantages of being high in flash fire voltage and conductivity, has good forming ability for the anodic oxidation films and is extremely suitable for high-voltage large-capacity aluminum electrolytic capacitors.

Description

technical field [0001] The invention relates to an electrolyte solute of an aluminum electrolytic capacitor for an industrial frequency converter. Background technique [0002] Aluminum electrolytic capacitors for industrial frequency converters are a combination of strong and weak currents, and an integrated electromechanical technology. They must not only deal with the conversion of huge electric energy, but also deal with the collection, transformation and transmission of information. Therefore, its common technology must be divided into two parts: power and control. The former should solve the technical problems related to high voltage and high current and the application technology of new power electronic devices, while the latter should solve the problems of hardware and software development. [0003] The solute is a key component of the working electrolyte, and it is required to have good solubility in the solvent, be easy to ionize, and have a strong ability to form...

Claims

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Application Information

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IPC IPC(8): H01G9/035
Inventor 裴曙光
Owner JIANGSU SHENYANG ELEVATOR PARTS
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