CN204537853U - The two-sided metallized film of a kind of vehicle-mounted capacitor - Google Patents
The two-sided metallized film of a kind of vehicle-mounted capacitor Download PDFInfo
- Publication number
- CN204537853U CN204537853U CN201520223853.1U CN201520223853U CN204537853U CN 204537853 U CN204537853 U CN 204537853U CN 201520223853 U CN201520223853 U CN 201520223853U CN 204537853 U CN204537853 U CN 204537853U
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- Prior art keywords
- vehicle
- zinc coating
- basement membrane
- coat
- film
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Abstract
The utility model discloses the two-sided metallized film of a kind of vehicle-mounted capacitor: have basement membrane and evaporation at the epilamellar coat of metal, basement membrane is polyester base film, and the tow sides of basement membrane all have zinc coating; Described zinc coating side has blank and stays limit, and opposite side is provided with thickened area, and the side of zinc coating to thickened area from the side that blank stays limit thickeies gradually, and the outside of zinc coating is also coated with aluminium coat, is coated with silicon layer outside aluminium coat; The uniform evaporation of aluminium coat thickness is on Zinc Deposit.The utility model, by the structure at polyester base film two sides evaporation double-level-metal coating, can make the resistance to more big current of vehicle-mounted capacitor, improve fail safe and the useful life of vehicle-mounted capacitor.Reduce production loss simultaneously, cost-saving, and at the outer silicon-coating oil reservoir of film, prevent the coat of metal to be oxidized.
Description
technical field:
The utility model relates to capacitor production equipment field, particularly relates to the two-sided metallized film of a kind of vehicle-mounted capacitor.
background technology:
Its method for making of common film capacitor is made together with being wound on after plastic film overlap as electrode the metal formings such as aluminium.But in addition film capacitor has again a kind of autofrettage, is called metallized film (Metallized Film), its method for making be on a plastic film with the very thin metal of vacuum evaporation last layer with as electrode.So can save the thickness of electrode foil, reduce the volume of capacitor unit capacity, so film capacitor is easier to make small-sized, capacitor capacious.Such as common MKP electric capacity, be exactly the designate of metallized polypropylene film capacitor (Metailized Polypropylene Film Capacitor), MKT is then the designate of metallized polyimide ethyl ester electric capacity (Metailized Polyester).
The film that metallic film capacitor uses has poly-ethyl ester, polypropylene, Merlon etc., except convoluted, also has lamination-type.The capacitor of this kenel of metallized film has a kind of so-called ego resilience effect (Self Healing Action), when namely supposing the minute portions of electrode because electric boundary matter is fragile and cause short circuit, cause the electrode metal of short circuit peripheral portion, can because of capacitor at that time with electrostatic energy or short circuit current, and cause more large-area dissolve and evaporate and recover insulation, make capacitor recover the effect of capacitor once again.
The electric current distribution feature of capacitor is edge, thickened area to staying limit place current density to taper off trend, and namely thickened area edge current density is large, stays limit edge current density little.When there being fault near the thickened area of metalized film, because current density is large herein, soon can self-healing; And when near metalized film stay to have fault near limit time, because current density is little, cannot self-healing rapidly, the heat that electric arc produces can cause this adjacent layers dielectric heat, and dielectric strength declines, thus puncture, puncture and electric current can be made to increase, self-healing makes electric current reduce, and result electric current can not acutely increase within longer a period of time, and continuously self-healing and a large amount of bodies of puncturing generation will make capacitor case bulging, last rupture of case.Along with the use of electronic equipment various in automobile gets more and more, the current capacity of vehicle-mounted capacitor requires also more and more higher, simultaneously for ensureing the safety of vehicle, explosion-proof performance is also extremely important, and the heavy current capacitor in the past used adopts papery basement membrane mostly, and aluminium foil is as the structure of plated film, this kind of infrastructure product volume is large, production loss is large, and cost is higher, and once breaks down and be easy to occur dieseling.
utility model content:
The purpose of this utility model is just to provide the two-sided metallized film of a kind of vehicle-mounted capacitor, the use solved along with electronic equipment various in automobile gets more and more, the current capacity of vehicle-mounted capacitor requires also more and more higher, simultaneously for ensureing the safety of vehicle, explosion-proof performance is also extremely important, the heavy current capacitor in the past used adopts papery basement membrane mostly, aluminium foil is as the structure of plated film, this kind of infrastructure product volume is large, production loss is large, cost is higher, and once breaks down be easy to occur the problem of dieseling.
The technical solution adopted in the utility model is:
The two-sided metallized film of a kind of vehicle-mounted capacitor: have basement membrane and evaporation at the epilamellar coat of metal, basement membrane is polyester base film, and the tow sides of basement membrane all have zinc coating; Described zinc coating side has blank and stays limit, and opposite side is provided with thickened area, and the side of zinc coating to thickened area from the side that blank stays limit thickeies gradually, and the outside of zinc coating is also coated with aluminium coat, is coated with silicon layer outside aluminium coat.
The uniform evaporation of described aluminium coat thickness is on Zinc Deposit.
Compared with prior art, the beneficial effects of the utility model are:
The utility model, by the structure at polyester base film two sides evaporation double-level-metal coating, can make the resistance to more big current of vehicle-mounted capacitor, improve fail safe and the useful life of vehicle-mounted capacitor.Reduce production loss simultaneously, cost-saving, and at the outer silicon-coating oil reservoir of film, prevent the coat of metal to be oxidized.
accompanying drawing illustrates:
Accompanying drawing 1 is the utility model structural representation.
embodiment:
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail:
The two-sided metallized film of a kind of vehicle-mounted capacitor: have basement membrane 1 and the coat of metal of evaporation on basement membrane 1, basement membrane 1 is polyester base film, and the tow sides of basement membrane 1 all have zinc coating 2; Described zinc coating 2 side has blank and stays limit 3, and opposite side is provided with thickened area 4, and the side of zinc coating 2 to thickened area from the side that blank stays limit thickeies gradually, and the outside of zinc coating 2 is also coated with aluminium coat 5, is coated with silicon layer 6 outside aluminium coat 5; The uniform evaporation of aluminium coat 5 thickness at zinc coating 2 on the surface.
Above-described embodiment is only preferably execution mode of the present utility model, and in addition, the utility model can also have other implementations.It should be noted that, under the prerequisite not departing from the utility model design, any apparent improvement and modification all should fall within protection range of the present utility model.
Claims (2)
1. the two-sided metallized film of vehicle-mounted capacitor, is characterized in that: have basement membrane and evaporation at the epilamellar coat of metal, basement membrane is polyester base film, and the tow sides of basement membrane all have zinc coating; Described zinc coating side has blank and stays limit, and opposite side is provided with thickened area, and the side of zinc coating to thickened area from the side that blank stays limit thickeies gradually, and the outside of zinc coating is also coated with aluminium coat, is coated with silicon layer outside aluminium coat.
2. the two-sided metallized film of vehicle-mounted capacitor according to claim 1, is characterized in that: the uniform evaporation of described aluminium coat thickness is on Zinc Deposit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223853.1U CN204537853U (en) | 2015-04-14 | 2015-04-14 | The two-sided metallized film of a kind of vehicle-mounted capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223853.1U CN204537853U (en) | 2015-04-14 | 2015-04-14 | The two-sided metallized film of a kind of vehicle-mounted capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204537853U true CN204537853U (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520223853.1U Expired - Fee Related CN204537853U (en) | 2015-04-14 | 2015-04-14 | The two-sided metallized film of a kind of vehicle-mounted capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204537853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444398A (en) * | 2019-08-08 | 2019-11-12 | 安徽省宁国市海伟电子有限公司 | A kind of durability high square resistance metallized film |
| CN112030112A (en) * | 2020-08-27 | 2020-12-04 | 安徽赛福电子有限公司 | Oxidation-resistant metallized film and manufacturing method thereof |
-
2015
- 2015-04-14 CN CN201520223853.1U patent/CN204537853U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444398A (en) * | 2019-08-08 | 2019-11-12 | 安徽省宁国市海伟电子有限公司 | A kind of durability high square resistance metallized film |
| CN112030112A (en) * | 2020-08-27 | 2020-12-04 | 安徽赛福电子有限公司 | Oxidation-resistant metallized film and manufacturing method thereof |
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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 |
Granted publication date: 20150805 Termination date: 20180414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |