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High-sheet-resistance safe metallized film

A metallized thin film, high square resistance technology, applied in the direction of fixed capacitor electrodes, fixed capacitor parts, etc., can solve the problems of not ideal self-healing, large volume, insufficient energy storage density of capacitors, etc., to improve self-healing ability , Increase the effect of safety and reliability

Inactive Publication Date: 2014-03-26
ANHUI SAFE ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the self-healing of the simple high-resistance film in the area of ​​the thick coating is not very ideal, and secondary self-healing is prone to occur, and the heat generation is relatively serious.
However, the volume of the rolled product is too large for the simple safety film, and the energy storage density of the capacitor is not enough.

Method used

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Embodiment Construction

[0011] The content of the present invention will be described below in conjunction with specific embodiments.

[0012] Such as figure 1 Shown is a schematic diagram of the structure of the high square resistance safety metallized film of the present invention, figure 2 for figure 1 Middle A-A sectional view. The metallized film of the present invention comprises: a base film 1 , a thickening area 3 , a gradient resistance area 2 , a margin 4 , and a metal fuse 5 . A layer of metallic zinc is plated on one side of the base film 1 , so that a relatively thick layer of zinc coating is formed on the edge of the base film 1 to form a thickened region 3 . The thickened region 3 greatly reduces the contact resistance between the gold-sprayed layer and the core of the film capacitor, and can withstand a relatively large current. Control the thickness of the vapor-deposited metal zinc in the thickened area 3 so that the sheet resistance presented is within (4.5±1) Ω / □.

[0013] O...

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Abstract

The invention relates to a high-sheet-resistance safe metallized film. The metallized film comprises a base film, a thickening region, a gradually varied sheet resistance region and a margin, wherein the thickening region is formed by plating a thick zinc plating layer on one side of the base film; the margin is formed by reserving a non-metal-plating layer on the base film at the same side of the thickening region; the gradually varied sheet resistance region is formed by plating a layer of aluminum on the region between the thickening region and the margin gradually from thick to thin. The high-sheet-resistance safe metallized film is adaptive to current density distribution of a capacitor, so that demands on the current and voltage of the capacitor are considered, self-healing capability of the capacitor is improved, and the safety reliability of the capacitor is increased.

Description

technical field [0001] The invention relates to a metallized film, in particular to a safe metallized film with high square resistance, belonging to the technical field of electronic components. Background technique [0002] At present, the metallized films commonly used in the market all use simple high-resistance films or simple safety films. However, the self-healing of the pure high-resistance film in the area of ​​the thick coating is not very ideal, and secondary self-healing is prone to occur, and the heat generation is relatively serious. However, the volume of the rolled product is too large for a simple safety film, and the energy storage density of the capacitor is not enough. Contents of the invention [0003] The present invention aims at the deficiencies of the prior art and provides a safe metallized film with high square resistance. [0004] In order to solve the above problems, the technical scheme adopted in the present invention is as follows: [0005...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/015
Inventor 徐湘华周峰
Owner ANHUI SAFE ELECTRONICS
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