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Vibration resistant aluminum electrolytic capacitor

An aluminum electrolytic capacitor, anti-vibration technology, applied in the direction of liquid electrolytic capacitors, capacitor parts, capacitor casing/packaging, etc., can solve the problems of positive and negative short circuit, capacitor failure, unstable performance, etc., to overcome easy loosening and improve efficiency , the effect of stable performance

Inactive Publication Date: 2016-11-30
HUNAN AIHUA GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aluminum electrolytic capacitors are mainly used for filtering, bypassing, and coupling. The specific applications are very extensive. In some vibration environments, especially in the application of automotive electronics, aluminum electrolytic capacitors are prone to unstable performance due to vibration, and even internal positive and negative Extremely short circuit, or the positive electrode and the aluminum case spark and cause the capacitor to fail

Method used

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  • Vibration resistant aluminum electrolytic capacitor
  • Vibration resistant aluminum electrolytic capacitor
  • Vibration resistant aluminum electrolytic capacitor

Examples

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Effect test

Embodiment 1

[0032] Such as Figure 1-Figure 3 A vibration-resistant aluminum electrolytic capacitor shown includes a core package 10 and a casing 1, the core package 10 is sealed in the casing 1; the casing 1 is provided with an inner concave groove for fixing the core package 10; the width of the positive electrode foil 2 is wider than that of the negative electrode The width of the foil 3, the winding starting ends of the positive electrode foil 2, the negative electrode foil 3 and the electrolytic paper 4. The positive electrode foil 2 is longer than the negative electrode foil 3, and the two side edges of the negative electrode foil 3 are located inside the two side edges of the positive electrode foil 2. The inner concave groove is a circular element girdle 5, the element girdle 5 is a single-turn element girdle or a multi-turn element girdle, and the multi-turn element girdle is evenly arranged on the shell 1.

[0033] In this embodiment, the positive electrode foil 2 is 0.5-3mm wid...

Embodiment 2

[0042] In this example, if Figure 4 and Figure 5 The inner concave groove shown is a vertical groove 6 , and a plurality of vertical grooves 6 are uniformly arranged on the shell 1 . Other parts are identical with embodiment 1.

Embodiment 3

[0044] Such as Figure 6 and Figure 7The shown inner concave groove is a dot-shaped groove 7; a plurality of dot-shaped grooves 7 are uniformly arranged on the shell 1. Other parts are identical with embodiment 1.

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Abstract

The invention discloses a vibration resistant aluminum electrolytic capacitor. The vibration resistant aluminum electrolytic capacitor comprises a core cladding and a shell, wherein the core cladding is sealed in the shell; an inner concave groove which is used for fixing the core cladding is formed in the shell; an anode foil is wider than a cathode foil; for winding start ends of the anode foil, the cathode foil and electrolytic paper, the anode foil is longer than the cathode foil; and edges of two sides of the cathode foil are located on the inner sides of edges of two sides of the anode foil. According to the vibration resistant aluminum electrolytic capacitor, the edges of the anode foil and the edges of the cathode foil are staggered, so that even burrs, caused by cutting, at the edges of the anode foil pierce the electrolytic paper, the anode foil does not contact the cathode foil to cause short circuit, and the normal use of the capacitor is not influenced.

Description

technical field [0001] The invention relates to an aluminum electrolytic capacitor, in particular to a vibration-resistant aluminum electrolytic capacitor. Background technique [0002] Aluminum electrolytic capacitors are mainly used for filtering, bypassing, and coupling. The specific applications are very extensive. In some vibration environments, especially in the application of automotive electronics, aluminum electrolytic capacitors are prone to unstable performance due to vibration, and even internal positive and negative The capacitor is short-circuited, or the positive electrode and the aluminum shell are ignited, causing the capacitor to fail. In this application environment, it is necessary to ensure the high reliability and stability of the capacitor under vibration conditions. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a vibration-resistant aluminu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/048H01G9/08H01G9/145
CPCH01G9/048H01G9/08H01G9/145
Inventor 杨治安陶艳军刘毅
Owner HUNAN AIHUA GRP
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