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Metallized film capacitor, method for manufacturing same, and metallized film laminate

A metallized film and metallized film technology, applied in the field of capacitors, can solve the problems of shortening the life of metallized film capacitors, poor heat resistance and mechanical properties, and low film energy storage density, etc., and achieve long service life and heat resistance. And the effect of good mechanical properties and high energy storage density

Pending Publication Date: 2022-02-01
ANHUI SAFE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prior art has the following disadvantages: the internal film of the existing metallized film capacitor has a small energy storage density, and its heat resistance and mechanical properties are poor. When it is used in a high-heat environment for a long time, the life of the metallized film capacitor will be greatly shortened.

Method used

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  • Metallized film capacitor, method for manufacturing same, and metallized film laminate
  • Metallized film capacitor, method for manufacturing same, and metallized film laminate

Examples

Experimental program
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Effect test

Embodiment 1

[0036] see figure 2 As shown, the metallized thin film laminate described in this embodiment includes a plurality of stacked metallized films 3, the metallized film 3 is composed of an organic plastic film 31 and an energy storage film 32 arranged on the surface of the organic plastic film 31, Different from the prior art, the organic plastic film 31 is a biphenyl type polyarylether nitrile film, which consists of the following components in parts by weight: 0.1 mol of biphenol, 0.1 mol of 2,6-dichlorobenzonitrile, Anhydrous potassium carbonate 0.12mol and auxiliary solvent 180mL, the auxiliary solvent is composed of the following components by weight: N-methylpyrrolidone 150mL, toluene 30mL;

[0037] The preparation of organic plastic film 31 comprises the following steps:

[0038] S1: Add biphenol, 2,6-dichlorobenzonitrile, anhydrous potassium carbonate, N-methylpyrrolidone and Toluene, under the protection of nitrogen, azeotropic dehydration for 2 hours, toluene was dist...

Embodiment 2

[0053] see figure 2 As shown, the metallized thin film laminate described in this embodiment includes a plurality of stacked metallized films 3, the metallized film 3 is composed of an organic plastic film 31 and an energy storage film 32 arranged on the surface of the organic plastic film 31, Different from the prior art, the organic plastic film 31 is a biphenyl type polyarylether nitrile film, which consists of the following components in parts by weight: 0.12 mol of biphenol, 0.12 mol of 2,6-dichlorobenzonitrile, Anhydrous potassium carbonate 0.14mol and auxiliary solvent 200mL, the auxiliary solvent is composed of the following components by weight: N-methylpyrrolidone 160mL, toluene 40mL;

[0054] The preparation of organic plastic film 31 comprises the following steps:

[0055] S1: Add biphenol, 2,6-dichlorobenzonitrile, anhydrous potassium carbonate, N-methylpyrrolidone and Toluene, under the protection of nitrogen, azeotropic dehydration for 2 hours, toluene was di...

Embodiment 3

[0070] see figure 1 As shown, the metallized film capacitor described in this embodiment includes an epoxy resin 1 and electrical terminals 2 symmetrically arranged on both sides of the epoxy resin 1. Different from the prior art, the interior of the epoxy resin 1 is also provided with There are a plurality of metallized films 3 arranged equidistantly, and one side of the electric terminal 2 is provided with a plurality of convex strips 21, and the convex strips 21 and the metallized films 3 are alternately arranged, and the adjacent metallized films 3 and the convex strips A closed heat dissipation cavity 4 is formed between the strips 21, and a sealing sleeve 5 is fixedly arranged in the contact area between the electrical terminal 2 and the epoxy resin 1, and the sealing sleeve 5 is used for the contact area between the electrical terminal 2 and the epoxy resin 1 sealed and waterproof;

[0071] When in use, after the terminal 2 is connected to electricity, the charge is tr...

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Abstract

The invention provides a metallized film capacitor, a method for manufacturing the same and a metallized film laminated. The metallized film capacitor comprises a plurality of laminated metallized films, each metallized film is composed of an organic plastic film and an energy storage film arranged on the surface of the organic plastic film, the organic plastic film is a biphenyl type polyarylene ether nitrile film, and consists of the following components in parts by weight: 0.1 mol of biphenol, 0.1 mol of 2, 6-dichlorobenzonitrile, 0.12 mol of anhydrous potassium carbonate and 180mL of an auxiliary solvent. A tensile test shows that when the graphene oxide content of the metallized film is 1 wt%, the tensile strength of the metallized film reaches the maximum value of 118 MPa and is improved by 15 MPa compared with 103 MPa of a single organic plastic film, and a stack formed by stacking a plurality of metallized films is large in energy storage density, good in heat resistance and mechanical performance and long in service life.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a metallized film capacitor, a manufacturing method thereof, and a metallized film laminate. Background technique [0002] Metallized film capacitors use organic plastic film as the medium, metallized film as the electrode, and are made by winding or stacking. The films used in metallized film capacitors include polyethylene, polypropylene, and polycarbonate. etc. In addition to the winding type, there is also a laminated type. Among them, polyester film medium and polypropylene film medium are the most widely used; [0003] This type of metallized film capacitor has a self-recovery effect, that is, if a small part of the electrode is short-circuited due to the fragility of the electrical interface, the electrode metal around the short-circuited part will be damaged by the static electricity charged by the capacitor at that time. Energy or short-circuit current, which causes...

Claims

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Application Information

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IPC IPC(8): H01G4/33H01G4/06H01G4/14H01G4/08H01G4/228H01G4/224H01G4/002H01G2/08H01G13/00
CPCH01G4/33H01G4/06H01G4/14H01G4/08H01G4/228H01G4/224H01G4/002H01G2/08H01G13/006H01G13/003
Inventor 周峰许明建
Owner ANHUI SAFE ELECTRONICS
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