CN107993844B - A kind of super thin metal film - Google Patents
A kind of super thin metal film Download PDFInfo
- Publication number
- CN107993844B CN107993844B CN201711091068.5A CN201711091068A CN107993844B CN 107993844 B CN107993844 B CN 107993844B CN 201711091068 A CN201711091068 A CN 201711091068A CN 107993844 B CN107993844 B CN 107993844B
- Authority
- CN
- China
- Prior art keywords
- area
- resistance area
- sheet resistance
- thin metal
- metal film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 47
- 239000002184 metal Substances 0.000 title claims abstract description 47
- 210000002469 basement membrane Anatomy 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 239000004411 aluminium Substances 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 15
- 229910052725 zinc Inorganic materials 0.000 claims description 15
- 239000011701 zinc Substances 0.000 claims description 15
- 238000001771 vacuum deposition Methods 0.000 claims description 12
- -1 terbium peroxide Chemical class 0.000 claims description 10
- 229910052771 Terbium Inorganic materials 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims description 2
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 abstract description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012797 qualification Methods 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 36
- 230000006872 improvement Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 239000011104 metalized film Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- QNDQILQPPKQROV-UHFFFAOYSA-N dizinc Chemical compound [Zn]=[Zn] QNDQILQPPKQROV-UHFFFAOYSA-N 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 210000004379 membrane Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/015—Special provisions for self-healing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention relates to a kind of super thin metal film, including basement membrane, the front of the basement membrane is provided with the coat of metal；The coat of metal includes thickened area, gradual changing square resistance area and big sheet resistance area, the thickness of the thickened area is greater than the thickness in big sheet resistance area, the gradual changing square resistance area is arranged between the caudal of thickened area and the first side in big sheet resistance area, is electrically connected between the thickened area and big sheet resistance area by gradual changing square resistance area；The caudal in the big sheet resistance area, which is provided with, stays border area.Super thin metal film of the present invention it is subsequent capacitor is made during be not easy to be burned, the qualification rate of product is up to 96.7%, is effectively reduced enterprise's production cost, and for dielectric strength in 1200V or more, the self-healing ability of manufactured capacitor is high.
Description
Technical field
The present invention relates to a kind of super thin metal films, belong to capacitor technology field.
Background technique
The super thin metal film (≤4 μm) generally used currently on the market, stays the width in border area to be generally 1mm,
It finds in practice, border area 1mm is stayed to be able to bear the dielectric strength of 1000V DC voltage, and super thin metal film (≤4 μm) is current
Usually in the DC circuit lower than 800V, so under normal circumstances, super thin metal film only needs reserved 1mm's to stay border area,
Just it is able to satisfy the design requirement of capacitor.But when actual production, because the thickness of super thin metal film is too thin, electricity is being deposited and made
Capacity is scalded in the end face spraying process of container, and the dielectric strength of capacitor is caused to decline to a great extent.If staying border area excessive, that
Capacitor core after winding easily occurs connecting insufficient breaking area between the coat of metal and metal spraying end face in metal spraying
Domain.The square resistance of the coat of metal of super thin metal film is smaller at present, general≤3.5 Ω/；This metalized film is being made
When making capacitor, the qualification rate of production is relatively low, and generally 70 ~ 83%, cost is relatively high.With getting up for capacitor application
It rises extensively, power equipment volume requirement is smaller and smaller, and also higher and higher to the volume requirement of capacitor accordingly, this requires capacitors
The energy storage density of device is increasing, i.e., capacitor is more and more using the occasion of super thin metal film, the requirement of production cost
It is higher and higher.
Summary of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of super thin metal film, specific technical solution is such as
Under:
A kind of super thin metal film, including basement membrane, the front of the basement membrane are provided with the coat of metal；The coat of metal
Including thickened area, gradual changing square resistance area and big sheet resistance area, the thickness of the thickened area is greater than the thickness in big sheet resistance area, the gradual change side
Resistance area is arranged between the caudal of thickened area and the first side in big sheet resistance area, passes through gradual change side between the thickened area and big sheet resistance area
Hinder area's electrical connection；The caudal in the big sheet resistance area, which is provided with, stays border area.
As an improvement of the above technical solution, the thickened area is that the zinc made of technique for vacuum coating plates metallic zinc
Layer.
As an improvement of the above technical solution, the width of the thickened area is 4~5mm.
As an improvement of the above technical solution, the width for staying border area is 4mm.
As an improvement of the above technical solution, the big sheet resistance area is metallic aluminium aluminium made of technique for vacuum coating
Coating.
As an improvement of the above technical solution, the gradual changing square resistance area is made up of allumen of technique for vacuum coating
Transition zone.
As an improvement of the above technical solution, the allumen includes metallic zinc, metallic aluminium, terbium peroxide, described
Metallic zinc accounts for the 47.5 ~ 49.1% of allumen total weight, and terbium peroxide accounts for the 0.026 ~ 0.029% of allumen total weight,
Surplus is metallic aluminium.
Beneficial effects of the present invention: super thin metal film of the present invention it is subsequent capacitor is made during be not easy
It is burned, the qualification rate of product is up to 96.7%, and enterprise's production cost is effectively reduced, and dielectric strength is made in 1200V or more
Capacitor self-healing ability it is high.
Detailed description of the invention
Fig. 1 is super thin metal membrane structure schematic diagram of the present invention；
Fig. 2 is the schematic diagram of two layers of super thin metal film of the present invention when rolling capacitor core.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
As shown in Figure 1, the super thin metal film, including basement membrane 1, the front of the basement membrane 1 are provided with the coat of metal；
The coat of metal includes thickened area 2, gradual changing square resistance area 3 and big sheet resistance area 4, and the thickness of the thickened area 2 is greater than big sheet resistance area 4
Thickness, the gradual changing square resistance area 3 is arranged between the caudal of thickened area 2 and the first side in big sheet resistance area 4,2 He of thickened area
It is electrically connected between big sheet resistance area 4 by gradual changing square resistance area 3；The caudal in the big sheet resistance area 4, which is provided with, stays border area 5.
The thickened area 2 is metallic zinc zinc coating made of technique for vacuum coating, and the width of the thickened area 2 is
The square resistance of 4~5mm, thickened area 2 are 2 ~ 4 Ω/, and thickened area 2 makes the gilding layer and capacitor core of thin film capacitor
Contact resistance significantly reduce.
The big sheet resistance area 4 is metallic aluminium aluminium coat made of technique for vacuum coating, the square electricity in big sheet resistance area 4
Resistance is 18 ~ 22 Ω/, and it is rotten to effectively improve anti-atmospheric oxidn of the metalized film in production and storage process using aluminum metal coating
Erosion ability, the self-healing ability of the design enhancing metalized film of big sheet resistance, increases the dielectric strength of capacitor.
The gradual changing square resistance area 3 is allumen transition zone made of technique for vacuum coating.Big sheet resistance area 4 abuts
Border area 5 is stayed, is the gradual changing square resistance area 3 formed by allumen between big sheet resistance area 4 and thickened area 2, gradual changing square resistance area 3 is one
Transitional region changes it from metal zinc coating to aluminium metal coating, makes the variation of its square resistance appearance from small to large, referred to as
Gradual changing square resistance area 3.
Of the present invention to stay border area 5 be the blank tape of ultra-wide, and the width for staying border area 5 is 4mm, is much larger than common metal
Change film.Super thin metal film of the present invention is first thin by two layers of super thin metalization of the present invention when rolling capacitor
Film is reversely superimposed, i.e., stays border area 5 to face the thickened area in lower layer's super thin metal film in upper layer super thin metal film
2, and it is provided with misalignment area 6 between the side of upper layer super thin metal film and the side of lower layer's super thin metal film, such as
Shown in Fig. 2；Two layers of super thin metal film of the present invention is wound again after being superimposed and capacitor core is made.This kind winding
The presence in mode and misalignment area 6, due to stay border area 5 width be 4mm, in addition when rolling capacitor core 1mm misalignment area 6,
The thickened area 2 for just making up 4~5mm wide eliminates vapor deposition hidden danger and capacitor later period end face metal spraying scald hidden danger, increases
The dielectric strength of entire capacitor.
It is adapted in the distribution of the current density of super thin metal film of the present invention and secondary capacitor, Jie of capacitor
Electric strength is 1200V or more.
The qualification rate of capacitor made of super thin metal film of the present invention is the steaming of 96.7%, Yao Biyong usual manner
The capacitor qualification rate that the metalized film of plating rolls improves very much, and the self-healing of capacitor is strong.
Embodiment 2
Based on embodiment 1, gradual changing square resistance area 3 be allumen transition zone made of technique for vacuum coating, it is described
Allumen main component is metallic zinc, metallic aluminium, and terbium peroxide is added in smelting process, so that the zinc-aluminium after smelting closes
Gold includes metallic zinc, metallic aluminium, terbium peroxide, and the metallic zinc accounts for the 47.5 ~ 49.1% of allumen total weight, seven oxidations
Four terbiums account for the 0.026 ~ 0.029% of allumen total weight, and surplus is metallic aluminium.Since in allumen, zinc, aluminium content are close,
Therefore the resistor transition between big sheet resistance area 4 and thickened area 2 is more smooth.
Test experiments
Film A is made using technique for vacuum coating on polypropylene film using allumen of the present invention, wherein originally
Metallic zinc described in the allumen accounts for allumen total weight 47.5 ~ 49.1% are invented, terbium peroxide accounts for allumen
The 0.026 ~ 0.029% of total weight, surplus are metallic aluminium.The dielectric strength of film A is 900V.
Comparative experiments
Film is made using with identical technique for vacuum coating in experiment 1 on polypropylene film using comparison allumen
B, wherein metallic zinc described in comparison allumen accounts for the 47.5 ~ 49.1% of allumen total weight, surplus is metallic aluminium.Film B
Dielectric strength be 900V.
Film A and film B are sent into the burn-in chamber that temperature is 60 ± 0.5 DEG C and humidity is 70 ~ 80% and carry out aging reality
After testing 30 days, dielectric strength of the film A after senile experiment is 780V, and dielectric strength of the film B after senile experiment is 630V,
The film B amplitude that its dielectric strength declines after senile experiment is 2.25 times of film A.It follows that adding in allumen
Add terbium peroxide that can slow down the aging in gradual changing square resistance area 3 in the super thin metal film, is conducive to extend described ultra-thin
The service life of metallized film.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of super thin metal film, including basement membrane, the front of the basement membrane are provided with the coat of metal, it is characterised in that: institute
Stating the coat of metal includes thickened area, gradual changing square resistance area and big sheet resistance area, and the thickness of the thickened area is greater than the thickness in big sheet resistance area,
The gradual changing square resistance area is arranged between the caudal of thickened area and the first side in big sheet resistance area, between the thickened area and big sheet resistance area
It is electrically connected by gradual changing square resistance area；The caudal in the big sheet resistance area, which is provided with, stays border area；The gradual changing square resistance area is closed by zinc-aluminium
The golden transition zone made of technique for vacuum coating, the allumen includes metallic zinc, metallic aluminium, terbium peroxide, described
Metallic zinc accounts for the 47.5 ~ 49.1% of allumen total weight, and terbium peroxide accounts for the 0.026 ~ 0.029% of allumen total weight,
Surplus is metallic aluminium.
2. a kind of super thin metal film according to claim 1, it is characterised in that: the thickened area is led to by metallic zinc
Cross zinc coating made of technique for vacuum coating.
3. a kind of super thin metal film according to claim 1, it is characterised in that: the width of the thickened area be 4~
5mm。
4. a kind of super thin metal film according to claim 1, it is characterised in that: the width for staying border area is 4mm.
5. a kind of super thin metal film according to claim 1, it is characterised in that: the big sheet resistance area is by metallic aluminium
The aluminium coat made of technique for vacuum coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091068.5A CN107993844B (en) | 2017-11-08 | 2017-11-08 | A kind of super thin metal film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091068.5A CN107993844B (en) | 2017-11-08 | 2017-11-08 | A kind of super thin metal film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107993844A CN107993844A (en) | 2018-05-04 |
| CN107993844B true CN107993844B (en) | 2019-07-23 |
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ID=62030733
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711091068.5A Active CN107993844B (en) | 2017-11-08 | 2017-11-08 | A kind of super thin metal film |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243825A (en) * | 2018-09-30 | 2019-01-18 | 德力西电气有限公司 | A kind of metal metallized safety type film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201829351U (en) * | 2010-10-30 | 2011-05-11 | 安徽铜峰电子股份有限公司 | Ultrahigh square-resistance metallized film |
| CN201859778U (en) * | 2010-09-28 | 2011-06-08 | 安徽省宁国市海伟电子有限公司 | Film capacitor with metallized netted film plating layer |
| 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 |
| CN103456492A (en) * | 2013-09-06 | 2013-12-18 | 安徽赛福电子有限公司 | High-sheet-resistance aluminum membrane |
-
2017
- 2017-11-08 CN CN201711091068.5A patent/CN107993844B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201859778U (en) * | 2010-09-28 | 2011-06-08 | 安徽省宁国市海伟电子有限公司 | Film capacitor with metallized netted film plating layer |
| CN201829351U (en) * | 2010-10-30 | 2011-05-11 | 安徽铜峰电子股份有限公司 | Ultrahigh square-resistance metallized film |
| 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 |
| CN103456492A (en) * | 2013-09-06 | 2013-12-18 | 安徽赛福电子有限公司 | High-sheet-resistance aluminum membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107993844A (en) | 2018-05-04 |
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