Electron component

A technology for electronic components and sealing parts, which is applied in the direction of electrical components, capacitor parts, circuits, etc., and can solve problems such as poor assembly, decreased sealing performance, and decreased airtightness of sealing parts

Inactive Publication Date: 2002-08-28
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, a traditional aluminum electrolytic capacitor composed of a sealing member made of isobutylene rubber with excellent airtightness and a driving electrolyte using a tertiary ammonium salt of an organic acid as an electrolyte is subjected to a life test at a high temperature or placed in a high temperature and high humidity When doing a life test under certain conditions, the driving electrolyte will cause problems on the sealing parts
As a result, the airtightness of the sealing member will decrease, and as a result, the driving electrolyte put together with the capacitor unit will evaporate completely in the metal container.
If the conventional aluminum electrolytic capacitor is further subjected to a reverse flow test using lead-free solder, the sealing part will be deformed, resulting in poor assembly
[0010] On the surface of the electronic component of the conventional electronic component unit containing the electrolytic solution for driving, there is such a problem that the sealing performance is reduced and the assembly is defective.

Method used

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Embodiment 1

[0058] The closure is composed of a cross-linked compound containing isobutylene rubber polymer, phenolic additives and silane additives. By cross-linking the chemical structure of the isobutylene rubber polymer of the complex, an elastic cross-linked body is formed; for example, by heating the complex, the isobutyl rubber polymer undergoes chemical cross-linking to form a sealant Cross-linked body; the cross-linked body used as a sealing member has elasticity.

[0059] For example: the above-mentioned complex may contain a peroxidic compound as a cross-linking catalyst; the isobutylene rubber polymer will undergo chemical cross-linking due to the action of the peroxidic compound, resulting in a cross-linked body.

[0060] The complex can also contain carbon powder or inorganic powder; as the inorganic powder, any powder such as silicon dioxide powder and calcium carbonate powder can be used; due to the inclusion of these powders, the mechanical strength of the sealing member ...

Embodiment 2

[0066] The compound of the sealing member in the present embodiment contains 100 parts by weight of isobutylene rubber polymer, 0.8 parts by weight of phenolic additive and 0.1 part by weight of silane-based additive; the phenolic additive contains phenols and phenolic derivatives; The compound is cross-linked to form a cross-linked body as a sealing member; this sealing member is elastic.

Embodiment 3

[0068] The compound of the sealing member in the present embodiment contains 100 parts by weight of isobutylene rubber polymer, 1.0 parts by weight of phenolic additive and 0.1 part by weight of silane-based additive; the phenolic additive contains phenols and phenolic derivatives; The compound is cross-linked to form a cross-linked body as a sealing member; this sealing member is elastic.

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PUM

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Abstract

An electronic component, comprising a container with an opening, an electronic component and an electrolyte disposed in the container, and a sealing member arranged at the opening and capable of sealing the opening; Combination structure; the above-mentioned complex contains isobutylene rubber polymer as the main component, phenolic additives and silane additives; thereby improving the airtightness of the sealing part and reducing the volatilization of the electrolyte. Also, the electronic component having such a sealing member has good mountability; as a result, an electronic component having long-term high reliability even under high temperature, high temperature and high humidity can be obtained.

Description

technical field [0001] The invention relates to an electronic component used in various electronic devices, in particular to an electronic component containing electrolyte and an electronic component unit. Background technique [0002] Hereinafter, an aluminum electrolytic capacitor will be described as an example of an electronic component including an electrolytic solution and an electronic component unit. [0003] Conventional aluminum electrolytic capacitors consisted of an electrolytic solution for driving, a capacitor unit, a metal container, a seal, an anode lead, a cathode lead, and a base. [0004] The capacitor unit immersed in the electrolytic solution for driving is placed in a metal container, the sealing member seals the opening of the metal container and has elasticity, and the anode lead and the cathode lead are respectively drawn out from the capacitor unit. [0005] In the conventional aluminum electrolytic capacitor thus constituted, the electrolytic solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/004H01G9/10
CPCH01G2/06H01G9/10H01G9/004
Inventor 湊浩一郎栗本浩山根淳二
Owner PANASONIC CORP
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