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Dry-type composite-dielectric filter capacitor

A dielectric filter and dry composite technology, applied in feedthrough capacitors, multilayer capacitors, wire wound capacitors, etc., can solve the problem of reducing the service life of capacitors, and achieve the effect of ensuring safe use, high energy storage density, and low loss.

Inactive Publication Date: 2009-12-16
ZHEJIANG QIXING CAPACITOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The service life of the capacitor is also reduced

Method used

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  • Dry-type composite-dielectric filter capacitor
  • Dry-type composite-dielectric filter capacitor

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Embodiment Construction

[0015] Such as figure 1 , figure 2 As shown, the dry-type composite dielectric filter capacitor of the present invention includes a capacitor core 6, pins 3 and a potting layer 5 coated on the outside of the capacitor core 6, and the capacitor core 6 is made of metal-plated The polypropylene film 1 and the metallized polyester film 2 are compounded and non-inductively wound. The metal layer is composed of an aluminum metal layer 11 and a zinc metal layer 12. The polypropylene film 1 and the zinc-aluminum composite layer are laminated with a single edge. The aluminum metal layer 11 is an electrode surface, and the zinc metal layer 12 is a reinforcing edge. The potting layer 5 is an epoxy resin cured layer.

[0016] After the capacitor core 6 is heat-set, one end surface of the metal layer of the polypropylene film 1 and one end surface of the metallized polyester film 2 are respectively sprayed with a gold-sprayed layer made of zinc, antimony, tin and copper. 4. It is conve...

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Abstract

The invention discloses a dry-type composite-dielectric filter capacitor, which comprises a capacitor core, a pin, and an encapsulation layer coated outside the capacitor core, wherein the capacitor core consists of a polypropylene film plated with a metallic layer and a metallized polyester film which are superposed in turn and are coiled in a non-inductive mode, the metallic layer is a zinc-aluminum composite layer, the metallized film has a 'natural repair' characteristic, small loss and large capacitance, the encapsulation layer is an epoxy resin solidified layer, thus not only the insulation strength of the capacitor is ensured, but also the safe use of the capacitor under a severe condition is ensured.

Description

technical field [0001] The invention relates to capacitors in the field of electronic components, in particular to a dry compound dielectric filter capacitor. Background technique [0002] Filter capacitors are suitable for voltage filtering in electronic rectifiers, such as: computers, televisions, switching regulated power supplies in a series of electrical appliances, electronic ballasts and other fields. They are made of metallized polyester, polypropylene film materials, zinc-aluminum base At present, the filter capacitors at home and abroad are all made of electrolytic capacitors. Some capacitors are composed of electrolyte, aluminum foil, etc., which are not only large in size, large in loss, and consume a large amount of power during work, but also have a positive The negative electrode brings hidden dangers to installation management. Because the electrolyte exists in a liquid state, a certain temperature will be generated during the operation of electrical and ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/33H01G4/32H01G4/35H01G4/002
Inventor 杨文荣
Owner ZHEJIANG QIXING CAPACITOR
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