CN103578765A - Metallized film for small-sized capacitor - Google Patents
Metallized film for small-sized capacitor Download PDFInfo
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- CN103578765A CN103578765A CN201310479824.7A CN201310479824A CN103578765A CN 103578765 A CN103578765 A CN 103578765A CN 201310479824 A CN201310479824 A CN 201310479824A CN 103578765 A CN103578765 A CN 103578765A
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Abstract
The invention relates to the technical field of capacitors and provides a metallized film for a small-sized capacitor. The metallized film for the small-sized capacitor comprises a base film. A metal plating layer is arranged on the base film, a strip of blank edge with a certain width is reserved on an end edge, in the width direction of the base film, of the metal plating layer, and an edge thickening area with a certain width is formed on the other end edge, in the width direction of the base film, of the metal plating layer. A non-thickening area is arranged between the blank edge and the edge thickening area, wherein the width of the thickening area is 2-2.5mm, and the width of the blank edge is 1-1.5mm. The metallized film for the small-sized capacitor overcomes the contradiction that current-carrying capacity and self-healing performance of a common metallized film can not be achieved at the same time, and the metallized film is high in oxidation and corrosion resistance, good in self-healing performance, good in electrical conductivity and small in capacity fading, and metal can be sprayed on the metallized film easily.
Description
Technical field
The present invention relates to capacitor technology field, be specifically related to a kind of midget capacitor metalized film.
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.The version of film capacitor mainly contains two kinds: a kind of version is to work as electrode with metal forming, together with metal forming is wound on plastic film layers poststack and make; The another kind of version of film capacitor, is to adopt metallized film to make, and metallized film is to consist of the metal that on plastic film, vacuum evaporation last layer is very thin, and this layer of metal is used as electrode, is equivalent to the metal forming of conventional films capacitor; Adopt metallized film to make film capacitor, can save the thickness of electrode foil, further dwindle the volume of capacitor unit capacity, so this kind of mode is easier to make little, the capacious capacitor of volume.The electric current distribution feature of capacitor is Zhi Liu limit, edge, the thickened area place current density trend that tapers off, and that is to say, thickened area edge current density is large, stays limit edge current density little.When having fault near the thickened area of metalized film, because current density is larger herein, soon can self-healing; And when having fault near staying of metalized film near limit, because current density is less, self-healing rapidly, the heat that electric arc produces can cause this adjacent layer dielectric heat, dielectric strength declines, thereby puncture, now this place attempt self-healing and cannot self-healing, will cause like this attempt self-healing of contiguous multilayer dielectricity and puncture, because puncturing, electric current is increased, self-healing reduces electric current, and result electric current can acutely not increase in longer a period of time, and continuously self-healing and a large amount of gases of puncturing generation will make capacitor case bulging, until generation shell splits cruelly.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of self-healing ability strong, the midget capacitor metalized film that antioxygenic property is good.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of midget capacitor metalized film, comprise basement membrane, on described basement membrane, be provided with the coat of metal, the described coat of metal stays limit along limit, an one end blank with one fixed width of reservation of basement membrane Width, the described coat of metal forms the thickened area, edge with one fixed width along the other end limit of basement membrane Width, it is non-thickened area that described blank is stayed between limit and thickened area, edge, and the width of described thickened area is at 2-2.5mm, and described blank stays the width on limit at 1-1.5mm.
The sheet resistance of described thickened area is 2 ± 0.5 Ω/.
The sheet resistance of described non-thickened area is 10 ± 2 Ω/.
Described basement membrane is polyester base film, and the described coat of metal comprises and is attached to epilamellar zinc-aluminium layer.
The invention has the beneficial effects as follows: the present invention has overcome the contradiction that common metal film ampacity and self-healing property cannot be taken into account simultaneously, antioxidant anticorrosive ability is strong, easily good, the good conductivity of metal spraying, self-healing property, capacity attenuation are little.
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, a kind of midget capacitor metalized film, comprise basement membrane 1, on basement membrane 1, be provided with the coat of metal 2, the coat of metal 2 stays limit 3 along limit, an one end blank with one fixed width of reservation of basement membrane 1 Width, the coat of metal 2 forms the thickened area, edge 4 with one fixed width along the other end limit of basement membrane 1 Width, it is non-thickened area that blank is stayed between limit 3 and thickened area, edge 4, the width of thickened area 4 is at 2-2.5mm, blank stays the width on limit 3 at 1-1.5mm, the sheet resistance of thickened area 4 is 2 ± 0.5 Ω/, the sheet resistance of non-thickened area is 10 ± 2 Ω/, basement membrane 1 is polyester base film, the coat of metal 2 comprises the zinc-aluminium layer being attached on basement membrane 1.
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 (4)
1. a midget capacitor metalized film, it is characterized in that: comprise basement membrane, on described basement membrane, be provided with the coat of metal, the described coat of metal stays limit along limit, an one end blank with one fixed width of reservation of basement membrane Width, the described coat of metal forms the thickened area, edge with one fixed width along the other end limit of basement membrane Width, it is non-thickened area that described blank is stayed between limit and thickened area, edge, and the width of described thickened area is at 2-2.5mm, and described blank stays the width on limit at 1-1.5mm.
2. midget capacitor metalized film according to claim 1, is characterized in that: the sheet resistance of described thickened area is 2 ± 0.5 Ω/.
3. midget capacitor metalized film according to claim 1, is characterized in that: the sheet resistance of described non-thickened area is 10 ± 2 Ω/.
4. midget capacitor metalized film according to claim 1, is characterized in that: described basement membrane is polyester base film, and the described coat of metal comprises and is attached to epilamellar zinc-aluminium layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479824.7A CN103578765A (en) | 2013-10-15 | 2013-10-15 | Metallized film for small-sized capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479824.7A CN103578765A (en) | 2013-10-15 | 2013-10-15 | Metallized film for small-sized capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103578765A true CN103578765A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310479824.7A Pending CN103578765A (en) | 2013-10-15 | 2013-10-15 | Metallized film for small-sized capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103578765A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097284A (en) * | 2014-12-16 | 2015-11-25 | 铜陵翔宇商贸有限公司 | Metalized film used for capacitor |
| CN108538582A (en) * | 2018-04-18 | 2018-09-14 | 钱立文 | A kind of improved metal metallized safety film |
| CN114334451A (en) * | 2021-11-26 | 2022-04-12 | 西安交通大学 | Metallized film capacitor |
| CN115472428A (en) * | 2022-08-12 | 2022-12-13 | 安徽省宁国市海伟电子有限公司 | Metallized film for film capacitor and film capacitor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06290990A (en) * | 1993-04-05 | 1994-10-18 | Toray Ind Inc | Metallized polypropylene film for capacitor |
| 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 |
| CN2814643Y (en) * | 2005-06-21 | 2006-09-06 | 陈敬叩 | Thin film for full aluminium reinforced side metallized capacitor |
| CN101197211A (en) * | 2006-12-07 | 2008-06-11 | 孔星 | Metallized polyester film capacitor and its manufacturing method and usage |
| CN202678109U (en) * | 2012-07-16 | 2013-01-16 | 佛山市意壳电容器有限公司 | High square resistance metallization polymer film capacitor |
| CN203456293U (en) * | 2013-08-23 | 2014-02-26 | 昆山泓电隆泰电子材料有限公司 | Single-surface aluminum-and-zinc metalized film with single reserved edge |
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2013
- 2013-10-15 CN CN201310479824.7A patent/CN103578765A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06290990A (en) * | 1993-04-05 | 1994-10-18 | Toray Ind Inc | Metallized polypropylene film for capacitor |
| 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 |
| CN2814643Y (en) * | 2005-06-21 | 2006-09-06 | 陈敬叩 | Thin film for full aluminium reinforced side metallized capacitor |
| CN101197211A (en) * | 2006-12-07 | 2008-06-11 | 孔星 | Metallized polyester film capacitor and its manufacturing method and usage |
| CN202678109U (en) * | 2012-07-16 | 2013-01-16 | 佛山市意壳电容器有限公司 | High square resistance metallization polymer film capacitor |
| CN203456293U (en) * | 2013-08-23 | 2014-02-26 | 昆山泓电隆泰电子材料有限公司 | Single-surface aluminum-and-zinc metalized film with single reserved edge |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097284A (en) * | 2014-12-16 | 2015-11-25 | 铜陵翔宇商贸有限公司 | Metalized film used for capacitor |
| CN105097284B (en) * | 2014-12-16 | 2018-11-13 | 安徽格太信控科技有限公司 | Capacitor metalized film |
| CN108538582A (en) * | 2018-04-18 | 2018-09-14 | 钱立文 | A kind of improved metal metallized safety film |
| CN114334451A (en) * | 2021-11-26 | 2022-04-12 | 西安交通大学 | Metallized film capacitor |
| CN115472428A (en) * | 2022-08-12 | 2022-12-13 | 安徽省宁国市海伟电子有限公司 | Metallized film for film capacitor and film capacitor |
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Application publication date: 20140212 |
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