CN103578752A - Two-sided coated thin film for large current resisting capacitor - Google Patents
Two-sided coated thin film for large current resisting capacitor Download PDFInfo
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- CN103578752A CN103578752A CN201310479839.3A CN201310479839A CN103578752A CN 103578752 A CN103578752 A CN 103578752A CN 201310479839 A CN201310479839 A CN 201310479839A CN 103578752 A CN103578752 A CN 103578752A
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- basement membrane
- capacitor
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- base film
- metal
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Abstract
The invention provides a two-sided coated thin film for a large current resisting capacitor, and relates to the technical field of capacitors. The two-sided coated thin film comprises a base film and metal coatings which are evaporated on the base film. The metal coatings are evaporated on the upper side and the lower side of the base film. Blank edges are arranged at the edges of the metal coatings and the edge of the base film. The base film is made of polypropylene. The metal coatings are zinc coatings. An aluminum coating is arranged on the zinc coating located on the upper surface of the base film. By the adoption of the two-sided coated thin film, production cost of the large current resisting capacitor is reduced by 20%, the size of the capacitor is reduced by 15%, the loss tangent value is controlled below 0.1%, the performance of products is effectively improved, the comprehensive performance of the products is improved, and production cost is reduced.
Description
Technical field
The present invention relates to capacitor technology field, be specifically related to two-sided plating film for a kind of resistance to heavy current capacitor.
Background technology
Film capacitor is a kind of capacitor of superior performance, and it has following key property: nonpolarity, insulation impedance is very high, and frequency characteristic is excellent, and dielectric loss is very little, and volume low capacity is large.Therefore, film capacitor has purposes comparatively widely, can form different series of products, as high specific energy energy storage capacitor, anti-electromagnetic interference capacitor, radioresistance capacitor, safety film capacitor, long-life capacitor, high-reliability electrical container, All-film H.V.Capacitors etc.Along with complete electronic set is to digitlization, high frequency, multifunction and to the future development such as thin, light, little, portable, capacitor is, performance excellent, price lower future development little to volume inevitably.Very extensive in resistance to heavy current capacitor fields of employment such as CBB81, CL21, be usually used in display device, as sound equipment, audio-visual equipment, the communication apparatus, the filtering of electronic equipment, noise reduction, stopping direct current, and resistance to heavy current impact etc. on welding machine.The plated film of the resistance to heavy current capacitors such as conventional CBB81, CL21 adopts paper as basement membrane, and aluminium foil is as plated film, and the shortcoming of this plated film is: the volume of product is large, and loss tangent is large, and cost is high.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of reducing production costs, and reduces the two-sided plating film for resistance to heavy current capacitor of small product size.
Technical problem to be solved by this invention realizes by the following technical solutions:
Two-sided plating film for a kind of resistance to heavy current capacitor, comprise basement membrane and the evaporation coat of metal on basement membrane, described coat of metal evaporation is on the upper and lower surface of basement membrane, the edge of the described coat of metal and basement membrane is provided with blank and stays limit, described basement membrane is polypropylene basement membrane, the described coat of metal is zinc coating, is positioned on the zinc coating of basement membrane upper surface and is also provided with one deck aluminium coat.
Metal layer thickness on described basement membrane upper and lower surface is identical.
The thickness of described aluminium coat successively decreases to both sides from centre.
The invention has the beneficial effects as follows: the present invention can make the production cost of resistance to heavy current capacitor reduce by 20%, volume reduces 15%, and loss tangent is controlled at below 0.1%, has effectively improved the performance of product, the combination property that has improved product, has reduced production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, two-sided plating film for a kind of resistance to heavy current capacitor, comprise basement membrane 1 and the evaporation coat of metal 2 on basement membrane 1, the coat of metal 2 evaporations are on the upper and lower surface of basement membrane 1, the edge of the coat of metal 2 and basement membrane 1 is provided with blank and stays limit, basement membrane 1 is polypropylene basement membrane, and the coat of metal 2 is zinc coating, is positioned on the zinc coating of basement membrane 1 upper surface and is also provided with one deck aluminium coat 3.The coat of metal 2 thickness on basement membrane 1 upper and lower surface are identical, and the thickness of aluminium coat 3 successively decreases to both sides from centre.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. a two-sided plating film for resistance to heavy current capacitor, it is characterized in that: comprise basement membrane and the evaporation coat of metal on basement membrane, described coat of metal evaporation is on the upper and lower surface of basement membrane, the edge of the described coat of metal and basement membrane is provided with blank and stays limit, described basement membrane is polypropylene basement membrane, the described coat of metal is zinc coating, is positioned on the zinc coating of basement membrane upper surface and is also provided with one deck aluminium coat.
2. two-sided plating film for resistance to heavy current capacitor according to claim 1, is characterized in that: the metal layer thickness on described basement membrane upper and lower surface is identical.
3. two-sided plating film for resistance to heavy current capacitor according to claim 1, is characterized in that: the thickness of described aluminium coat successively decreases to both sides from centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479839.3A CN103578752A (en) | 2013-10-15 | 2013-10-15 | Two-sided coated thin film for large current resisting capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479839.3A CN103578752A (en) | 2013-10-15 | 2013-10-15 | Two-sided coated thin film for large current resisting capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103578752A true CN103578752A (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310479839.3A Pending CN103578752A (en) | 2013-10-15 | 2013-10-15 | Two-sided coated thin film for large current resisting capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103578752A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463451A (en) * | 2001-06-08 | 2003-12-24 | 松下电器产业株式会社 | Multilayer fim capacitor and prodn. method thereof |
| CN1753114A (en) * | 2004-09-22 | 2006-03-29 | 安徽铜峰电子股份有限公司 | Gradual changing square resistance metallic film and capacitor containing said metallic film |
| CN1822262A (en) * | 2006-03-24 | 2006-08-23 | 潘旭祥 | Anti-oxidation and anti-high voltage multilayer metallized capacitor film |
-
2013
- 2013-10-15 CN CN201310479839.3A patent/CN103578752A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463451A (en) * | 2001-06-08 | 2003-12-24 | 松下电器产业株式会社 | Multilayer fim capacitor and prodn. method thereof |
| CN1753114A (en) * | 2004-09-22 | 2006-03-29 | 安徽铜峰电子股份有限公司 | Gradual changing square resistance metallic film and capacitor containing said metallic film |
| CN1822262A (en) * | 2006-03-24 | 2006-08-23 | 潘旭祥 | Anti-oxidation and anti-high voltage multilayer metallized capacitor film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |
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| RJ01 | Rejection of invention patent application after publication |