CN2741160Y - Core element of double-face metallized thin-film capacitor - Google Patents
Core element of double-face metallized thin-film capacitor Download PDFInfo
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- CN2741160Y CN2741160Y CN 200420094712 CN200420094712U CN2741160Y CN 2741160 Y CN2741160 Y CN 2741160Y CN 200420094712 CN200420094712 CN 200420094712 CN 200420094712 U CN200420094712 U CN 200420094712U CN 2741160 Y CN2741160 Y CN 2741160Y
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- metal
- double
- film capacitor
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Abstract
The utility model relates to a core element of a double-surface metallized thin film capacitor. The utility model is characterized in that two surfaces of each of all organic thin films are respectively provided with a metal plating layer. The utility model has the advantages that two metal layers which are mutually contacted are arranged in the space between core layers of the capacitor, the two metal layers can not form an electrical potential difference, under the action of a high electric field, even when residual air exists between the two metal layers, the electric discharge of an air gap can not be generated, and therefore, the problem that because of the partial electric discharge caused by residual air, the medium is aged is avoided.
Description
Affiliated technical field
The utility model relates to metallized organic film capacitor, especially a kind of double-sided metal film capacitor fuse element.
Background technology
The fuse element of existing single face and common two-sided metallic film capacitor generally is to be wound into overlay structure by two layers of one-sided metallized film or one deck double-sided metal film and one deck without metallized organic film compound dislocation.Fig. 1 is the generalized section of common single face metallic film capacitor fuse element.(A) being plain edition, (B) is interior three string shapes (odd number string), (C) is interior two string shapes (even number string).Fig. 2 is the generalized section of common two-sided metallization and paper tinsel formula film capacitor fuse element.Shown in Fig. 2 A, the double-sided metal coating interconnection behind fuse coiling, metal spraying of double-sided metal film communicates, and plays an electrode effect jointly, and organic film therebetween only as the carrier of the coat of metal, does not play the medium effect.Shown in Fig. 2 B and Fig. 2 C, the double-sided metal thin film coating is as not connected electrode, organic film therebetween both as the carrier of the coat of metal also as the medium of capacitor.
Being easy to cause form air gap between two membranes in the manufacture process of capacitor, generally is mixtures such as air and dust.Under the power frequency action of alternative electric field, disruptive discharge takes place in air gap easily, can be accompanied by a series of radiation, heat and chemical action in the discharge process, these effects can damage the insulation of medium gradually, accelerating medium is aging, make electric capacity puncture inefficacy in advance, this phenomenon is especially outstanding in high-voltage capacitor.
Summary of the invention
In order to overcome the deficiency of existing metallized film capacitor fuse, the utility model provides a kind of two-sidedization film capacitor fuse element, and all organic film media of this metallic film capacitor fuse all carry out the double-sided metal vapor deposition treatment.The technical scheme that its technical problem that solves the utility model adopts is:
A kind of double-sided metal film capacitor fuse element, its design feature are the two-sided coat of metal that is equipped with of all organic films.
The beneficial effects of the utility model are, all organic membrane media of metallic film capacitor fuse all carry out the double-sided metal vapor deposition treatment, gap between capacitor layer is two metal levels that are in contact with one another like this, under the situation of energising, current potential equates between this two metal level, can not form potential difference, under high electric field action, even have residual air between two metal levels, can not produce bubble-discharge yet, thereby avoided causing the aging problem of medium, the reliability and the life-span of improving capacitor owing to residual air causes partial discharge.
Description of drawings
Fig. 1 is the generalized section of existing single face metallic film capacitor fuse element.
Fig. 2 is the generalized section of existing common two-sided metallic film capacitor fuse element.
Fig. 3 is a generalized section of the present utility model.
Among the figure, 20 metal formings, the 21 main coats of metal, 22 assistant metal coating, 23 organic films.
Embodiment
Consulting Fig. 3, (a) is the fuse generalized section of different structure of the present utility model to (e).A kind of double-sided metal film capacitor fuse element forms the two-sided coat of metal that is equipped with of all organic films by double-sided metal film or double-sided metal film and metal forming combination lap wound.The double-sided metal film is formed by organic membrane with at the coat of metal 21 and the coat of metal 22 of its surperficial evaporation, and wherein the coat of metal 21 is the main coat of metal of extraction electrode, and the coat of metal 22 has been the assistant metal coating of shielding action.When double-sided metal film or double-sided metal film and metal forming combination lap wound are made the capacitor core sub-element together, wherein the main coat of metal 21 of one deck double-sided metal film or metal forming 20 contact with the assistant metal coating 22 of another layer double-sided metal film, current potential equates between this two metal level, can not form potential difference, under high electric field action, even have residual air between two metal levels, can not produce bubble-discharge yet, thereby avoid causing the aging problem of medium owing to residual air causes partial discharge.Above-mentioned related metallized film is to adopt the method for vacuum evaporation to make, the overall process of evaporation is in high vacuum state, the coat of metal combines by chemisorbed, though residual gas componant still may be contained in the boundary zone of the coat of metal and carrier, and the formation intermediate layer, but this generally has only several atomic thickness, can ignore.
Above-described specific embodiment only is the utility model preferred embodiment, and the equivalent arrangements of being done according to the utility model claim all should be technology of the present utility model and contains such as.
Claims (1)
1. a double-sided metal film capacitor fuse element is characterized in that: the two-sided coat of metal that is equipped with of all organic films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420094712 CN2741160Y (en) | 2004-11-05 | 2004-11-05 | Core element of double-face metallized thin-film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420094712 CN2741160Y (en) | 2004-11-05 | 2004-11-05 | Core element of double-face metallized thin-film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2741160Y true CN2741160Y (en) | 2005-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420094712 Expired - Lifetime CN2741160Y (en) | 2004-11-05 | 2004-11-05 | Core element of double-face metallized thin-film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2741160Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701008A (en) * | 2013-12-04 | 2015-06-10 | 铜陵市永生机电制造有限责任公司 | Explosion-proof motor car capacitor core |
| CN108155010A (en) * | 2017-12-13 | 2018-06-12 | 河南华佳新材料技术有限公司 | A kind of two-sided metallization polypropylene film and preparation method thereof |
-
2004
- 2004-11-05 CN CN 200420094712 patent/CN2741160Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701008A (en) * | 2013-12-04 | 2015-06-10 | 铜陵市永生机电制造有限责任公司 | Explosion-proof motor car capacitor core |
| CN108155010A (en) * | 2017-12-13 | 2018-06-12 | 河南华佳新材料技术有限公司 | A kind of two-sided metallization polypropylene film and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141105 Granted publication date: 20051116 |