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High-ripple resistant aluminium electrolytic capacitor

An aluminum electrolytic capacitor, ripple technology, applied in the direction of capacitor terminals, capacitor parts, etc., can solve the problems of capacitor heating, limit the service life of capacitors, increase the equivalent series resistance of capacitors, etc., to prolong the service life, reliable performance, Effect of Low Equivalent Series Resistance

Inactive Publication Date: 2013-02-06
CHANGZHOU HUAWEI ELECTRONICS
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Problems solved by technology

[0004] The lead-out method adopted by the traditional bolt-type aluminum electrolytic capacitor is one-way lead-out, and the lead-out method adopts multiple pairs of aluminum lead-out strips and the cover plate to be mechanically riveted. The traditional lead-out connection method increases the internal equivalent series resistance of the capacitor. Severe heating due to applied ripple current during operation, which limits the service life of the capacitor

Method used

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  • High-ripple resistant aluminium electrolytic capacitor

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Embodiment

[0012] Example: see attached figure 1 , the present invention relates to a large ripple resistant aluminum electrolytic capacitor, comprising a positive electrode piece 1, a negative electrode piece 2, a separator paper 3, a core package 4 and an aluminum shell 5, a positive lead-out terminal 6, an insulating device 7, a safety explosion-proof device 8, and a negative electrode The lead-out terminal 9; the separator paper 3 is between the positive electrode sheet 1 and the negative electrode sheet 2, and the three are rolled together into a core package 4 and the core package 4 is installed in the aluminum casing 5 and connected to the aluminum casing 5 by ultrasonic welding or Laser welding; the positive lead-out terminal 6 is drawn from the left side of the aluminum shell 5 and the positive lead-out terminal 6 is isolated from the aluminum shell by an insulating device 7, while the negative lead-out terminal 9 is drawn from the right side of the aluminum shell 5 and the negat...

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Abstract

The invention relates to a high-ripple resistant aluminium electrolytic capacitor. By means of a high-ripple resistant current bidirectional lead-out structure with ultra-low internal resistance, the widths of a positive plate and a negative plate more than that of isolation paper and the like, the problem of serious fever caused by increasing equivalent series resistance and applying ripple current in the traditional lead-out connection manner is solved. The high-ripple resistant aluminium electrolytic capacitor disclosed by the invention has the advantages of novel structure, reliable performance, ultra-low equivalent series resistance, high ripple bearing current and the like.

Description

technical field [0001] The invention relates to an aluminum electrolytic capacitor, specifically, a large ripple-resistant aluminum electrolytic capacitor. Background technique [0002] Capacitors are essential components in the terminals of various electronic products and play a vital role in electronic systems. In applications such as industry and power supply, system manufacturers have more urgent needs for capacitors with low ESR and small size, while in applications such as automobiles, military industry and aerospace, the requirements for capacitor life, high-capacity withstand voltage, and reliability are raised. higher requirements. [0003] In recent years, power technologies represented by wind energy and solar energy have developed rapidly in recent years. Both the frequency converter in the wind power generation system and the inverter in the solar power generation system need to use aluminum electrolytic capacitors. With the rapid development of wind energy an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/048H01G9/008
Inventor 颜奇旭王坤亮朱胜利
Owner CHANGZHOU HUAWEI ELECTRONICS
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