CN103021655A - Low-voltage aluminum-foil-type series connection safe filter capacitor - Google Patents
Low-voltage aluminum-foil-type series connection safe filter capacitor Download PDFInfo
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- CN103021655A CN103021655A CN2012104604088A CN201210460408A CN103021655A CN 103021655 A CN103021655 A CN 103021655A CN 2012104604088 A CN2012104604088 A CN 2012104604088A CN 201210460408 A CN201210460408 A CN 201210460408A CN 103021655 A CN103021655 A CN 103021655A
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Abstract
The invention discloses a low-voltage aluminum-foil-type series connection safe filter capacitor which comprises a first insulation medium layer, an automatic repairation composite metal layer, a second insulation medium layer, first aluminum foil and second aluminum foil, wherein the automatic repairation composite metal layer is formed on the first insulation medium layer; the second insulation medium layer is arranged on the automatic repairation composite metal layer; and the first aluminum foil and the second aluminum foil are arranged on the second insulation medium layer in a mutual separation mode, and are used for two leading-out polar plates which form the capacitor. The capacitor provided by the invention has stable capacitance loss under high current and harmonic wave current; the service life of the capacitor is more than 10 times that of a metallic capacitor; the capacitor has an automatic repairation function; and open circuit safe protection can occur under the condition of high voltage and high instant current.
Description
Technical field
The present invention relates to a kind of aluminum foil type safe filtering capacitor of connecting.
Background technology
The conventional low filtering capacitor forms with the metallized polypropylene film coiling, has a volume little, the weight warp, and self-healing property is good, the advantages such as low price; But the type capacitor generally only has the thickness of 0.02mm because metal polar plate is very thin, and anti-current capability is poor, under the impact of large electric current or harmonic current, metal level easily evaporates, and the effective area of capacitor plate reduces, and causes the condenser capacitance value to be decayed very soon, loss value increases simultaneously, capacitor damages, so containing under the operational environment of multiple harmonic, such low-voltage filter capacitance apparatus life-span is short, poor reliability, rate of failure is high.
Therefore, be necessary for shortcoming of the prior art, design the unattenuated aluminum foil type of a kind of longevity, safety and/or the capacity safe filtering capacitor of connecting.
Summary of the invention
Considers at least one the problems referred to above and finished the present invention, and one object of the present invention is to provide a kind of low-voltage aluminium foil formula safe filtering capacitor of connecting, it is characterized in that comprising:
The first insulating medium layer;
Self repairs complex metal layer, and it is formed on the first insulating medium layer;
The second insulating medium layer, it is arranged on self repairs on the complex metal layer;
The first and second aluminium foils, it is arranged on the second insulating medium layer separated from one anotherly, draws pole plate for two that are used to form described capacitor.
According to a further aspect of the invention, described the first and second aluminium foils have identical thickness.Be understandable that, also can select the different thickness of design as required, preferably, described the first and second aluminium foils are 6 μ m.
According to a further aspect of the invention, the described complex metal layer of self repairing comprises the zinc-aluminium complex metal layer.Be understandable that, also can be as required, select to have other complex metal layer of self repair function.
According to a further aspect of the invention, two surface areas of drawing the first and second aluminium foils of pole plate as described capacitor equate.Be understandable that, also can as required, select the surface area of design the first and second aluminium foils different.
According to a further aspect of the invention, this capacitor can be used for connecting to be combined to form harmonic filter with filter reactor.
Compared with prior art, the low-voltage aluminium foil formula of the present invention safe filtering capacitor of connecting has the following advantages:
This capacitor can be connected with filter reactor, is combined into harmonic filter, produces the capacitive character reactive power when fundamental frequency is 50HZ, improves the magnitude of power of system; And capacitor forms low-down impedance under harmonic frequency, thus effectively filtering 3 times, 5 times, 7 times, 11 times, 13 inferior subharmonic, and then improve the voltage distortion rate of system; Can be widely used in all industry and civilian users, improve the useful life of power consumption equipment, reduce energy consumption, effectively energy-conservation.
Description of drawings
Fig. 1 is the connect structure chart of safe filtering capacitor of low-voltage aluminium foil formula according to the preferred embodiment of the invention.
Fig. 2 is the connect electrical schematic diagram of safe filtering capacitor of low-voltage aluminium foil formula according to the preferred embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing; by preferred embodiment preferred forms of the present invention is described; the embodiment here is to explain the present invention; and should not be construed as limitation of the present invention; in the situation that do not break away from spirit of the present invention and essential scope; can make various changes and modifications, these all should be included within protection scope of the present invention.
Referring to Fig. 1, the low-voltage aluminium foil formula that wherein the shows the preferred embodiment of the present invention safe filtering capacitor of connecting, this capacitor comprises: the first insulating medium layer 4; Self repairs complex metal layer 3, and it is formed on the first insulating medium layer 4; The second insulating medium layer 2, it is arranged on self repairs on the complex metal layer 3; The first and second aluminium foils 1, it is arranged on the second insulating medium layer 2 separated from one anotherly, draws pole plate for two that are used to form described capacitor.Adopt aluminium foil to replace metallization coating, as the pole plate of drawing of capacitor, withstanding current capability is the hundred times of metal layer.
Capacitor of the present invention is under large electric current, harmonic current, and the capacitance loss is stable.This capacitor useful life is more than ten times of metallized capacitor life-span, and it has the self-healing function, in the situation that the open circuit safeguard protection can appear in high voltage, instantaneous large-current.
Preferably, described the first and second aluminium foils 1 have identical thickness.Be understandable that, also can select the different thickness of design as required, preferably, described the first and second aluminium foils 1 are 6 μ m.
Preferably, the described complex metal layer 3 of self repairing comprises the zinc-aluminium complex metal layer.Be understandable that, also can be as required, select to have other complex metal layer of self repair function.
Preferably, two surface areas of drawing the first and second aluminium foils 1 of pole plate as described capacitor equate.Be understandable that, also can as required, select the surface area of design the first and second aluminium foils different.
Preferably, this capacitor can be used for connecting to be combined to form harmonic filter with filter reactor.
Compared with prior art, the capacitor among the present invention has following characteristics and/or advantage:
1. adopt aluminium foil to replace metallization coating, as the pole plate of drawing of capacitor, the thickness of aluminium foil is generally 6 μ m, and withstanding current capability is the hundred times of metal layer.
2. for improving the proof voltage ability of this product, when design, adopted the internal series-connection mode of safe metal level, made the use voltage of capacitor more safe and reliable.
3. for improving the anti-heavy current of this product, exit is 6 μ m aluminium foils.In cranking test, capacity is stable, still keeps capacity, loss constant in the switchings impacting for 200,000 times, and conventional metallic film capacitor volume change obviously occurs in 20,000 impulse currents, and loss increases.
4. for improving the security performance of product, another pole plate is the safe metal level that self repair ability is arranged, at capacitor since the electric weakness of dielectric layer can puncture and melt; self repairs, and reaches insulation reparation, makes capacitor recover normal operation; when short circuit appears in electric capacity, can play the safeguard protection effect.
5. this capacitor can be used for the high-current harmonic electric current.
In sum, the present invention had both improved the ability of tolerance harmonic current, and the time spent has again very high self repair ability and safeguard protection performance.The invention is not restricted to above-mentioned specific embodiment. be understandable that, in the situation that do not break away from spirit of the present invention and essential scope, can make various changes and modifications, these all should be included within protection scope of the present invention.
Claims (6)
1. a low-voltage aluminium foil formula safe filtering capacitor of connecting is characterized in that comprising:
The first insulating medium layer;
Self repairs complex metal layer, and it is formed on the first insulating medium layer;
The second insulating medium layer, it is arranged on self repairs on the complex metal layer;
The first and second aluminium foils, it is arranged on the second insulating medium layer separated from one anotherly, draws pole plate for two that are used to form described capacitor.
2. the low-voltage aluminium foil formula according to claim 1 safe filtering capacitor of connecting is characterized in that described the first and second aluminium foils have identical thickness.
3. the low-voltage aluminium foil formula according to claim 2 safe filtering capacitor of connecting is characterized in that described the first and second aluminium foils are 6 μ m.
4. each described low-voltage aluminium foil formula safe filtering capacitor of connecting is characterized in that the described complex metal layer of self repairing comprises the zinc-aluminium complex metal layer according to claim 1-3.
5. the low-voltage aluminium foil formula according to claim 4 safe filtering capacitor of connecting is characterized in that equating as two surface areas of drawing the first and second aluminium foils of pole plate of described capacitor.
6. the low-voltage aluminium foil formula according to claim 5 safe filtering capacitor of connecting is characterized in that this capacitor is used for connecting to be combined to form harmonic filter with filter reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104604088A CN103021655A (en) | 2012-11-15 | 2012-11-15 | Low-voltage aluminum-foil-type series connection safe filter capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104604088A CN103021655A (en) | 2012-11-15 | 2012-11-15 | Low-voltage aluminum-foil-type series connection safe filter capacitor |
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| CN103021655A true CN103021655A (en) | 2013-04-03 |
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| CN2012104604088A Pending CN103021655A (en) | 2012-11-15 | 2012-11-15 | Low-voltage aluminum-foil-type series connection safe filter capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996736A (en) * | 2014-05-29 | 2014-08-20 | 陕西宝成航空仪表有限责任公司 | Novel structure of light sensor applied to photoelectric potentiometer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299396A (en) * | 2008-04-11 | 2008-11-05 | 孔星 | Dual cooling type high frequency induction heating capacitor |
| CN101604577A (en) * | 2009-04-30 | 2009-12-16 | 杨文荣 | A kind of dry-type composite-dielectric filter capacitor |
| CN201994180U (en) * | 2011-04-13 | 2011-09-28 | 亿曼丰科技（深圳）有限公司 | High-voltage series resonance capacitor dedicated for self-ballasted energy-saving lamp |
| CN202940129U (en) * | 2012-11-15 | 2013-05-15 | 无锡北科自动化科技有限公司 | Low voltage aluminium foil type series safe filter capacitor |
-
2012
- 2012-11-15 CN CN2012104604088A patent/CN103021655A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299396A (en) * | 2008-04-11 | 2008-11-05 | 孔星 | Dual cooling type high frequency induction heating capacitor |
| CN101604577A (en) * | 2009-04-30 | 2009-12-16 | 杨文荣 | A kind of dry-type composite-dielectric filter capacitor |
| CN201994180U (en) * | 2011-04-13 | 2011-09-28 | 亿曼丰科技（深圳）有限公司 | High-voltage series resonance capacitor dedicated for self-ballasted energy-saving lamp |
| CN202940129U (en) * | 2012-11-15 | 2013-05-15 | 无锡北科自动化科技有限公司 | Low voltage aluminium foil type series safe filter capacitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996736A (en) * | 2014-05-29 | 2014-08-20 | 陕西宝成航空仪表有限责任公司 | Novel structure of light sensor applied to photoelectric potentiometer |
| CN103996736B (en) * | 2014-05-29 | 2016-02-03 | 陕西宝成航空仪表有限责任公司 | Be applied to the light-sensitive element new construction in photopotentiometer |
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Application publication date: 20130403 |