CN203644566U - Zinc-aluminium composite safety film for capacitor - Google Patents
Zinc-aluminium composite safety film for capacitor Download PDFInfo
- Publication number
- CN203644566U CN203644566U CN201320735793.2U CN201320735793U CN203644566U CN 203644566 U CN203644566 U CN 203644566U CN 201320735793 U CN201320735793 U CN 201320735793U CN 203644566 U CN203644566 U CN 203644566U
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- zinc
- film
- capacitor
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- evaporation
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Abstract
The utility model relates to a zinc-aluminium composite safety film for a capacitor, and the film comprises an insulation basement membrane. A side surface of the basement membrane is sequentially provided with a blank margin area, a latticed safety film evaporation area, and a margin evaporation thickening area. A zinc-aluminium membrane evaporation area is disposed between the blank margin area and the latticed safety film evaporation area. The safety film can be used for replacing a conventional capacitor core which is formed by the matched winding of a safety film and a common zinc-aluminium metallized film, reduces the cost of production, maintains the advantage of reliable open-circuit failure, and can meet the demands of occasions where the explosion-proof requirements are not high and short circuit failures are not allowed.
Description
Technical field
The utility model relates to a kind of metallizing safety membrane used in capacitor, specifically zinc-aluminium composite safe film for a kind of capacitor.
Background technology
Metal metallized safety film is the important materials of capacitor.The metal metallized safety film that existing market is sold is mainly that its metallization structure is a kind of network structure, metal steam is plated to blockage one by one and is formed by the metallization filament (fuse) that connects these blockages, the microfuze reaction of metal metallized safety film is very sensitive, in the time puncturing in any one pole plate unit, whole capacitor is by breakdown point short circuit dischange, powerful electric current gushes to breakdown point from all quarter, enters the machine plate unit at breakdown point place by microfuze.In the time that electric current reaches certain numerical value, microfuze moment is blown, and makes the pole plate unit at breakdown point place and capacitor post slab integral and keeps apart, and forms an insulation layer, and capacitor case rupture phenomenon can not occur, and plays explosion-proof effect.But safety diaphragm also has its shortcoming, exactly because need a lot of narrow clearance for insulations that electrode is divided into a lot of blockage clearance for insulations effective area of approximately 5-10% that accounts for, so cost increases, capacitor volume very much not can miniaturization, and loss angle is larger than zinc-aluminum film, so capacitor factory reels and forms noinductive capacitor by one deck safety diaphragm and one deck zinc-aluminum film two superimposed.
Summary of the invention
The purpose of this utility model is to provide a kind of capacitor zinc-aluminium composite safe film, has the advantage of safety diaphragm and two kinds of films of zinc-aluminum film concurrently, and not only effective area is large, and open failure is reliable.
The utility model is achieved in that and comprises insulating basement membrane, basement membrane one side surface be longitudinally provided with successively blank stay border area, with latticed safety diaphragm evaporation district and evaporation thickened area, edge, it is characterized in that: blank is stayed between border area and safety diaphragm evaporation district and is also provided with zinc-aluminum film evaporation district.
Further, safety diaphragm evaporation district is 1:1～1.2 with the width ratio in zinc-aluminum film evaporation district.
The utility model merges safety diaphragm evaporation district and zinc-aluminum film evaporation district on same basement membrane, make to have concurrently the advantage of safety diaphragm and two kinds of films of zinc-aluminum film, one deck safety diaphragm using before can substituting and the common zinc-aluminium metalized film of one deck capacitor body being wound into of arranging in pairs or groups, reduce the advantage that production cost has retained again reliable open failure, can meet that some are high especially and do not allow the occasion needs of short-circuit failure to requirement of explosion proof.
brief description of the drawings
Fig. 1 is the utility model structural representation.
embodiment
As shown in Figure 1, zinc-aluminium composite safe film for the utility model capacitor, comprises insulating basement membrane, basement membrane one side surface be longitudinally provided with successively blank stay border area 1, with latticed safety diaphragm evaporation district 2, zinc-aluminum film evaporation district 3 and evaporation thickened area, edge 4.
Wherein, safety diaphragm evaporation district 2 is 1:1～1.2 with the width ratio in zinc-aluminum film evaporation district 3.
The utility model has the advantages that: by zinc-aluminum film and safety diaphragm evaporation on same basement membrane, can reliable open failure with the noinductive capacitor of its manufacture, can meet that some are high especially and do not allow the occasion of short-circuit failure to requirement of explosion proof.Arrange in pairs or groups and be wound into capacitor body with two-layer the utility model capacitor zinc-aluminium composite safe film, one deck safety diaphragm using before can substituting and one deck common metal film capacitor body being wound into of arranging in pairs or groups, reduce production cost, retained again the advantage of the little and reliable open failure of each self-healing loss of capacitance.
Claims (2)
1. zinc-aluminium composite safe film for capacitor, comprise insulating basement membrane, basement membrane one side surface be longitudinally provided with successively blank stay border area (1), with latticed safety diaphragm evaporation district (3) and evaporation thickened area, edge (4), it is characterized in that: blank is stayed between border area (1) and safety diaphragm evaporation district (3) and is also provided with zinc-aluminum film evaporation district (2).
2. zinc-aluminium composite safe film for capacitor according to claim 1, is characterized in that: safety diaphragm evaporation district (3) is 1:1～1.2 with the width ratio in zinc-aluminum film evaporation district (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320735793.2U CN203644566U (en) | 2013-11-20 | 2013-11-20 | Zinc-aluminium composite safety film for capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320735793.2U CN203644566U (en) | 2013-11-20 | 2013-11-20 | Zinc-aluminium composite safety film for capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644566U true CN203644566U (en) | 2014-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320735793.2U Expired - Fee Related CN203644566U (en) | 2013-11-20 | 2013-11-20 | Zinc-aluminium composite safety film for capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108369862A (en) * | 2015-12-15 | 2018-08-03 | 松下知识产权经营株式会社 | Metalized film and thin film capacitor |
| CN108597871A (en) * | 2018-04-18 | 2018-09-28 | 钱立文 | A kind of safety diaphragm of composite construction |
| CN108806977A (en) * | 2018-07-06 | 2018-11-13 | 珠海格力新元电子有限公司 | A kind of metal metallized safety film |
-
2013
- 2013-11-20 CN CN201320735793.2U patent/CN203644566U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108369862A (en) * | 2015-12-15 | 2018-08-03 | 松下知识产权经营株式会社 | Metalized film and thin film capacitor |
| CN108597871A (en) * | 2018-04-18 | 2018-09-28 | 钱立文 | A kind of safety diaphragm of composite construction |
| CN108806977A (en) * | 2018-07-06 | 2018-11-13 | 珠海格力新元电子有限公司 | A kind of metal metallized safety film |
| CN108806977B (en) * | 2018-07-06 | 2024-04-12 | 珠海格力新元电子有限公司 | Metallized safety film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161120 |