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A kind of preparation method of aluminum electrolytic capacitor

A technology of aluminum electrolytic capacitors and electrolytic paper, which is applied in the field of capacitors, can solve the problems of constant use and difficult to see the contents of the sleeve, and achieve the effects of improving yield, reducing impedance, and improving conductivity

Active Publication Date: 2020-08-28
YIYANG ANXING ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The explosion-proof grooves of the current aluminum electrolytic capacitors are set on the outer side of the bottom of the shell, and the shell is sleeved, and the product information is marked on the sleeve. When the capacitor is installed on the circuit board, due to the circuit board There are generally many components on the cover, and the sleeve is set on the side of the shell, the content on the sleeve is not easy to see, resulting in the use of the same

Method used

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  • A kind of preparation method of aluminum electrolytic capacitor
  • A kind of preparation method of aluminum electrolytic capacitor
  • A kind of preparation method of aluminum electrolytic capacitor

Examples

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Embodiment 1

[0037] An aluminum electrolytic capacitor, comprising a shell 1, a rubber plug 2 and a core pack 3, the rubber plug 2 seals the core pack 3 impregnated with electrolyte in the shell 1, and the inner shell surface at the bottom of the shell 1 is provided with an explosion-proof groove 4. The explosion-proof groove 4 is facing the bottom of the core package 3, and a layer of pad paper 5 is arranged between the bottom of the core package 3 and the explosion-proof groove 4;

[0038] In this embodiment, two layers of scotch tape 7 are wrapped around the outside of the core pack 3 , and the scotch tape 7 protrudes 1 mm from the bottom of the core pack 3 . The core pack 3 is formed by winding the positive electrode foil 8, the electrolytic paper 10 and the negative electrode foil 9. 0.8mm on both sides.

[0039]The preparation method of the aluminum electrolytic capacitor of the present invention includes the following steps, 1) cutting, cutting the positive electrode foil, negative...

Embodiment 2

[0059] In this embodiment, the core package 3 is formed by winding the positive electrode foil 8, the electrolytic paper 10 and the negative electrode foil 9; the width of the positive electrode foil 8 is 2 mm wider than the negative electrode foil 9, and both sides of the positive electrode foil 8 protrude from the negative electrode foil by 1 mm. Both sides of the electrolytic paper 10 protrude from both sides of the positive electrode foil 8 by 1 mm.

[0060] Other parts of this embodiment are the same as Embodiment 1.

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Abstract

An aluminum electrolytic capacitor comprises a shell, a rubber plug and a core pack, wherein the core pack immersed in an electrolyte is sealed in the shell by the rubber plug, an explosion-proof groove is formed in an inner shell surface of the bottom of the shell and is right opposite to the bottom of the core pack, a layer of cushion paper is arranged between the bottom of the core pack and theexplosion-proof groove, the outer shell surface of the bottom of the shell is smooth, a layer of mask membrane is printed or plated on an outer shell surface of the bottom of the shell, and grapheneaccounting for 0.02-0.7% of the total mass of the electrolyte is contained in the electrolyte. In the aluminum electrolytic capacitor, a layer of product information membrane can be printed or platedon an outer side surface of the bottom of the shell, and thus, the product information of the capacitor can be conveniently viewed on a circuit board; and meanwhile, by the core pack structure of thealuminum electrolytic capacitor, the short-circuit phenomenon in the capacitor can be reduced, and the yield of the capacitor product is improved.

Description

technical field [0001] The invention relates to a capacitor, in particular to an aluminum electrolytic capacitor and a preparation method thereof. Background technique [0002] The explosion-proof grooves of the current aluminum electrolytic capacitors are set on the outer side of the bottom of the shell, and the shell is sleeved, and the product information is marked on the sleeve. When the capacitor is installed on the circuit board, due to the circuit board There are generally many components on the cover, and the sleeve is set on the side of the shell, and the content on the sleeve is not easy to see, resulting in no change in use. 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 an aluminum electrolytic capacitor with capacitor product information marked on the outer surface of the bottom of the casing and a preparation method thereof. [0004] In order to solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/08H01G9/045H01G2/24
CPCH01G2/24H01G9/0029H01G9/045H01G9/08
Inventor 艾茂彭国
Owner YIYANG ANXING ELECTRONICS
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