CN203931817U - The improved metallized capacitor film of a kind of antioxygenic property - Google Patents
The improved metallized capacitor film of a kind of antioxygenic property Download PDFInfo
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- CN203931817U CN203931817U CN201420319339.3U CN201420319339U CN203931817U CN 203931817 U CN203931817 U CN 203931817U CN 201420319339 U CN201420319339 U CN 201420319339U CN 203931817 U CN203931817 U CN 203931817U
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- plastic film
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Abstract
The utility model discloses the improved metallized capacitor film of a kind of antioxygenic property, comprise the coat of metal and the plastic film top layer and the plastic film bottom that lay respectively at coat of metal two sides, described coat of metal material is zinc and/or aluminium, and described plastic film top layer and plastic film primer are polyolefin; Described plastic film top layer has the contact bottom surface contacting with the described coat of metal, and described plastic film bottom has the contact end face contacting with the described coat of metal, and described contact bottom surface has identical surface charge density with the described end face that contacts.The improved metallized capacitor film of a kind of antioxygenic property described in the utility model, reduced the penetrability of the airborne charged particle with oxidizability to plastic film top layer and plastic film bottom, and improved plastic film top layer and plastic film bottom dielectric property, reduced and puncture occurrence probability.
Description
Technical field
The utility model relates to the improved metallized capacitor film of a kind of antioxygenic property, belongs to capacitor and uses metallized film manufacturing technology field.
Background technology
At present, the metallized film for the manufacture of film capacitor is composite zinc-aluminum metallized film.The metallized film of aluminizing has good adhesion property, and production process is easy to process, but the metallized film of aluminizing is easily oxidized and form and take alundum (Al2O3) as Main Ingredients and Appearance compact oxidation layer in air, although this oxide layer can stop metallized film further oxidized, but while working under the large electric current of ac high-voltage, this oxide layer can cause the capacity of capacitor to decline rapidly; For this reason, on the basis of aluminizing at metallized film, plate again one deck zinc and can prevent well that internal layer aluminium coated from forming oxide layer, thereby the situation that the capacity that capacitor can not occur declines rapidly, but metallized film zinc coat reproducibility is stronger, speed zinc oxide faster and that oxidation forms oxidized in air has fluffy structure, be difficult to stop the generation of further oxidation, therefore metallized film zinc coat is not only difficult to process adding man-hour, and easily causes capacitor that the accident that heating even punctures occurs; For this reason, also need on metallized film is aluminized zinc-plated basis, plate again one deck aluminium, thereby play the effect of protection metallized film zinc coat.
Utility model content
The purpose of this utility model is to provide a kind of antioxygenic property improved metallized capacitor film, can improve the oxidation resistance of metallized capacitor film metal coating.
For addressing the above problem, technical solution adopted in the utility model is as follows:
The improved metallized capacitor film of a kind of antioxygenic property, comprise: the coat of metal and the plastic film top layer and the plastic film bottom that lay respectively at coat of metal two sides, described coat of metal material is zinc and/or aluminium, and described plastic film top layer and plastic film primer are polyolefin;
Described plastic film top layer has the contact bottom surface contacting with the described coat of metal, and described plastic film bottom has the contact end face contacting with the described coat of metal, and described contact bottom surface has identical surface charge density with the described end face that contacts.
As the improvement of technique scheme, described contact bottom surface has identical surface charge density and is zero with the described end face that contacts.
As the improvement of technique scheme, described plastic film primer is poly-the third hydrocarbon.
The utility model has also proposed the manufacture method of the improved metallized capacitor film of a kind of antioxygenic property, comprises the steps:
Step 1, the end face that contacts of the contact bottom surface of plastic film top layer and plastic film bottom is carried out to surface charge processing;
Step 2, the contact bottom surface after step 1 is processed and contact end face and carry out surface charge density measurement, when contact bottom surface with contact table top surface surface charge density and need again carry out the operation of step 1 when inconsistent, until contact bottom surface and to contact table top surface surface charge density consistent;
Step 3, employing sputter coating or vacuum evaporation mode form the coat of metal at the contact end face of the plastic film bottom of processing through step 2;
The mode of step 4, the pressing of employing heating power is fixed to the contact bottom surface of plastic film top layer on the coat of metal of step 3 processing.
As the improvement of technique scheme, step 1 further optimally mode be: the end face that contacts to the contact bottom surface of plastic film top layer and plastic film bottom carries out surface charge Processing for removing;
Step 2 further optimally mode be: the contact bottom surface after step 1 is processed with contact end face and carry out surface charge density measurement, when contact bottom surface with contact table top surface surface charge density and need again carry out the operation of step 1 when non-vanishing, until contact bottom surface and contact table top surface surface charge density and be zero;
Step 3 is identical with technique scheme with step 4.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
The improved metallized capacitor film of a kind of antioxygenic property described in the utility model, set up on the one hand the plastic film top layer protection coat of metal and be originally exposed to airborne part, but only increase plastic film top layer and no doubt there is beneficial effect, but the cost that processes raw material simultaneously increasing also greatly reduces the feasibility of such scheme industrialization, Given this, further limit coat of metal two sides and there is identical surface charge density, can not produce the electric field perpendicular to the coat of metal, therefore can effectively reduce the ability that the coat of metal is carried electromotive force in vertical direction, thereby reduced the penetrability of the airborne charged particle with oxidizability to plastic film top layer and plastic film bottom, and plastic film top layer and plastic film bottom dielectric property have further been improved, reduce and puncture occurrence probability, therefore with respect to prior art, can further reduce the thickness of plastic film top layer and plastic film bottom, to offset, set up the cost of material increase that plastic film top layer is caused.
Accompanying drawing explanation
Fig. 1 is the improved metallized capacitor film of a kind of antioxygenic property described in the utility model cross section structure schematic diagram.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
As shown in Figure 1, be the improved metallized capacitor membrane structure of a kind of antioxygenic property described in the utility model schematic diagram.The improved metallized capacitor film of a kind of antioxygenic property described in the utility model, comprise: the coat of metal 1 and the plastic film top layer 2 and the plastic film bottom 3 that lay respectively at coat of metal two sides, the described coat of metal 1 material is zinc and/or aluminium, and described plastic film top layer 2 and plastic film bottom 3 materials are polyolefin;
Described plastic film top layer 2 has the contact bottom surface 21 contacting with the described coat of metal 1, described plastic film bottom 3 has the contact end face 31 contacting with the described coat of metal 1, and described contact bottom surface 21 has identical surface charge density with the described end face 31 that contacts.
As the improvement of technique scheme, described contact bottom surface 21 has identical surface charge density and is zero with the described end face 31 that contacts.
Described plastic film bottom 3 materials are poly-the third hydrocarbon.Polyolefin all has good electricity saving performance and thermal viscosity, therefore in the technical scheme that is applicable to being applied to the utility model proposes, wherein poly-the third hydrocarbon is current at the thin mold materials of a kind of plastics being most widely used in metallized film for capacitor, selects poly-the third hydrocarbon can adapt to preferably existing technology and equipment.
Improved its manufacture method of metallized capacitor film of antioxygenic property that the present embodiment provides comprises the steps:
One, the end face that contacts of the contact bottom surface of plastic film top layer and plastic film bottom is carried out to surface charge processing.
The method that surface charge is processed has had a variety of in the prior art:
Can adopt on the one hand Surface Treatment with Plasma technology to increase the contact bottom surface of plastic film top layer and the charge density that contacts end face of plastic film bottom, until contact bottom surface is consistent with the charge density that contacts end face, particularly as corona discharge or glow discharge surface treatment.Corona discharge or glow discharge process for treating surface are a kind of known technological means, therefore do not repeat herein.
Can carry out zero suppression processing to the charge density that contacts end face of the contact bottom surface of plastic film top layer and plastic film bottom on the other hand: in the environment of the inert gas shielding of 40～60 ℃ of constant temperature; pass into halogen gas; and by need contact to be processed bottom surface with contact end face and be exposed in halogen gas, keep 5～20 min to complete the zero suppression of film surface charge density and process.
Two, the contact bottom surface after step 1 is processed with contact end face and carry out surface charge density measurement, when contact bottom surface with contact table top surface surface charge density and need again carry out the operation of step 1 when inconsistent, until contact bottom surface and to contact table top surface surface charge density consistent.
The mode that surface charge density is measured has had a lot, it is all mainly inductive probe method, in patent documentation, also disclose some inductive probe method surface charge density metering system has been made to improved example, particularly if notification number is disclosed record in the Chinese utility model patent of having authorized of CN 101515003 B.
Three, adopt sputter coating or vacuum evaporation mode to form the coat of metal at the contact end face of the plastic film bottom of processing through step 2.Sputter coating or vacuum evaporation mode are technical scheme ripe in prior art, particularly for the utility model, sputter coating or vacuum evaporation process parameter reference value are: the surface temperature control of chilling roll is at 14～17 ℃, film is 3 ± 1 m/min by the speed of chilling roll, and the vacuum degree of vacuum chamber should be not more than 5 * 10
-3pa.
Four, adopt the mode of heating power pressing that the contact bottom surface of plastic film top layer is fixed on the coat of metal of step 3 processing.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (3)
1. the improved metallized capacitor film of antioxygenic property, it is characterized in that, comprise: the coat of metal and the plastic film top layer and the plastic film bottom that lay respectively at coat of metal two sides, described coat of metal material is zinc and/or aluminium, and described plastic film top layer and plastic film primer are polyolefin;
Described plastic film top layer has the contact bottom surface contacting with the described coat of metal, and described plastic film bottom has the contact end face contacting with the described coat of metal, and described contact bottom surface has identical surface charge density with the described end face that contacts.
2. the improved metallized capacitor film of a kind of antioxygenic property as claimed in claim 1, is characterized in that, described contact bottom surface has identical surface charge density and is zero with the described end face that contacts.
3. the improved metallized capacitor film of a kind of antioxygenic property as claimed in claim 1 or 2, is characterized in that, described plastic film primer is poly-the third hydrocarbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319339.3U CN203931817U (en) | 2014-06-16 | 2014-06-16 | The improved metallized capacitor film of a kind of antioxygenic property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319339.3U CN203931817U (en) | 2014-06-16 | 2014-06-16 | The improved metallized capacitor film of a kind of antioxygenic property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931817U true CN203931817U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319339.3U Expired - Fee Related CN203931817U (en) | 2014-06-16 | 2014-06-16 | The improved metallized capacitor film of a kind of antioxygenic property |
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| Country | Link |
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| CN (1) | CN203931817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996534A (en) * | 2014-06-16 | 2014-08-20 | 安徽省宁国市海伟电子有限公司 | Metallized capacitor film with improved oxidation resistance |
-
2014
- 2014-06-16 CN CN201420319339.3U patent/CN203931817U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996534A (en) * | 2014-06-16 | 2014-08-20 | 安徽省宁国市海伟电子有限公司 | Metallized capacitor film with improved oxidation resistance |
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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: 20141105 Termination date: 20170616 |