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Photovoltaic wind-powered dry type direct current filter capacitor

A DC filter and capacitor technology, applied in capacitors, electrical components and other directions, can solve the problems of increasing volume, dry-type DC filter capacitor volume cannot meet customer requirements, etc., and achieve the effect of small size, good market value, and small self-inductance

Inactive Publication Date: 2014-04-02
ANHUI SAFE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the existing dry-type DC filter capacitors generally have a large capacity, the volume will also increase. When there are special volume requirements, the volume of general dry-type DC filter capacitors cannot meet customer requirements.

Method used

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  • Photovoltaic wind-powered dry type direct current filter capacitor
  • Photovoltaic wind-powered dry type direct current filter capacitor

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Embodiment Construction

[0013] The content of the present invention will be described below in conjunction with specific embodiments.

[0014] like figure 1 As shown, it is the front view of the filter capacitor of the present invention, figure 2 for its top view. The filter capacitor of the present invention comprises: a capacitor core group 1, an insulating layer 2, a potting material 3, a metal case 4, a shell cover 5 and a lead terminal 6, the capacitor core group 1 is arranged in the metal case 4, and the capacitor core group 1 and There is an insulating layer 2 between the metal shells 4, and the potting material 3 is filled in the gap in the metal shell 4. The potting material 3 is polyurethane, and the lead-out terminal 6 passes through the shell cover 5 and is connected with the capacitor core group 1. The shell cover 5 is buckled. Closed on the metal casing 4, the potting material 3 is completely sealed.

[0015] In order to fix the case cover 5, the case cover 5 and the metal case 4 ar...

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Abstract

The invention relates to a photovoltaic wind-powered dry type direct current filter capacitor which comprises a capacitor core group, an insulating layer, a perfusion material, a metal shell, a shell cover and a lead-out terminal, wherein the capacitor core group is arranged in the metal shell; the insulating layer is arranged between the capacitor core group and the metal shell; the perfusion material is filled in gaps of the metal shell; the lead-out terminal penetrates through the shell cover and is connected with the capacitor core group; the shell cover is buckled on the metal shell, so that the perfusion material is completely sealed. According to the photovoltaic wind-powered dry type direct current filter capacitor, the shell cover is buckled on the metal shell, so that the perfusion material is completely sealed and is not directly contacted with an external environment, and thus external moisture is prevented from influencing the internal capacitor core group by virtue of small holes in the perfusion material. The filter capacitor has the advantages of small size, less self inductance and the like, meets the in-service use requirements and has better market value.

Description

technical field [0001] The invention relates to a filter capacitor, in particular to a photovoltaic wind power dry DC filter capacitor, which belongs to the technical field of electronic components. Background technique [0002] DC filter capacitors are widely used in high-voltage direct current transmission (HVDC), static var compensation (SVC), wind power generation, electric locomotive traction, AC and DC power transmission, excitation, high-voltage soft start, high-voltage frequency conversion, rectifiers, various mechanical lifting The inverter of the device. The DC filter capacitor can effectively filter the additional ripple cost of the voltage and smooth the waveform. Dry-type DC filter capacitors generally have the advantages of low loss, high withstand voltage, good self-healing performance, safety and explosion-proof, and earthquake resistance. [0003] However, when the existing dry-type DC filter capacitors generally have a large capacity, the volume will also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G2/10
Inventor 周涛
Owner ANHUI SAFE ELECTRONICS
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