High-power and high-frequency pulse ageing instrument and ageing method for middle- and high-pressure aluminum electrolytic capacitor

A technology of aluminum electrolytic capacitors and high-frequency pulses, which is applied in the manufacture of electrolytic capacitors, capacitors, capacitors, etc., can solve the problems of unsatisfactory medium and high voltage electrolytic capacitors, and achieve the effect of saving electricity consumption and production costs

Active Publication Date: 2011-11-09
SHENZHEN ZHONGYUAN ELECTRONICS
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Problems solved by technology

[0003] Aiming at the shortcomings of the above-mentioned traditional capacitance aging instrument and aging method in the prior art that are not ideal for medium and high voltage electrolytic capacitors, the present invention provides a new aging instrument and aging method for medium and high voltage aluminum electrolytic capacitors, which uses high frequency Pulse aging of medium and high voltage aluminum electrolytic capacitors

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  • High-power and high-frequency pulse ageing instrument and ageing method for middle- and high-pressure aluminum electrolytic capacitor
  • High-power and high-frequency pulse ageing instrument and ageing method for middle- and high-pressure aluminum electrolytic capacitor
  • High-power and high-frequency pulse ageing instrument and ageing method for middle- and high-pressure aluminum electrolytic capacitor

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Embodiment Construction

[0019] This embodiment is a preferred implementation mode of the present invention, and other principles and basic structures that are the same or similar to this embodiment are within the protection scope of the present invention.

[0020] The high-frequency pulses referred to in the present invention refer to pulses with a pulse frequency above 1 Hz. Please see attached figure 1 And attached figure 2 , the core modules of the present invention are a micro-processing module and a three-phase voltage and current controllable DC power supply module. The microprocessing module (in this embodiment, the microprocessing module adopts the minimum system of a single-chip microcomputer) outputs control signals through the D / A module for digital-to-analog conversion and amplification, and then input to the three-phase voltage and current controllable DC power supply module to control the three-phase voltage and current The output voltage and current of the controllable DC power supp...

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Abstract

The invention relates to a high-power and high-frequency pulse ageing instrument and an ageing method for a middle- and high-pressure aluminum electrolytic capacitor. The ageing instrument comprises a micro processor module, a voltage / current controllable direct-current power supply module and a switch circuit, wherein the micro processor module outputs a control signal to control the operation of the voltage / current controllable direct-current power supply module; the voltage / current controllable direct-current power supply module operates and outputs power supply to the switch circuit; and the micro processor module controls the switch circuit to output a high-frequency pulse. The ageing method comprises the following steps of: ageing the electrolytic capacitor by outputting the high-frequency pulse with the frequency of between 1 and 10,000Hz and the duty ratio of 0.3 to 0.8; boosting an ageing voltage to a set output voltage by steps at room temperature and ageing the aluminum electrolytic capacitor within 1.5 to 2.5 hours; ageing the aluminum electrolytic capacitor for 1.0 hour at the temperature of between 85 DEG C to 115 DEG C and the set output voltage; and cooling to room temperature and ageing the aluminum electrolytic capacitor for 0.5 hour at the set output voltage.

Description

technical field [0001] The invention discloses an aging instrument and aging method for electrolytic capacitors, in particular to a high-power high-frequency pulse aging instrument for medium and high voltage aluminum electrolytic capacitors and an aging method for medium and high voltage aluminum electrolytic capacitors using the aging instrument. Background technique [0002] In the manufacturing process of electrolytic capacitors, due to operations such as foil cutting, riveting and winding, the damage caused to the oxide film on the electrode aluminum foil is difficult to completely repair only by the self-healing ability of the capacitor. It must go through the aging process to ensure that the performance of the product meets the standard requirements, and it has considerable stability and uniformity. Sophisticated process is one of the key processes in the manufacture of aluminum electrolytic capacitors. It uses a certain voltage or current to reform the capacitor. Its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G13/00H01G9/00
Inventor 王德全
Owner SHENZHEN ZHONGYUAN ELECTRONICS
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