CN107993844A - A kind of super thin metal film - Google Patents
A kind of super thin metal film Download PDFInfo
- Publication number
- CN107993844A CN107993844A CN201711091068.5A CN201711091068A CN107993844A CN 107993844 A CN107993844 A CN 107993844A CN 201711091068 A CN201711091068 A CN 201711091068A CN 107993844 A CN107993844 A CN 107993844A
- Authority
- CN
- China
- Prior art keywords
- area
- resistance area
- metal film
- thin metal
- super thin
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 229910052725 zinc Inorganic materials 0.000 claims description 17
- 239000011701 zinc Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 238000001771 vacuum deposition Methods 0.000 claims description 12
- -1 terbium peroxide Chemical class 0.000 claims description 11
- 229910052771 Terbium Inorganic materials 0.000 claims description 9
- 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 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 25
- 238000012797 qualification Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 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
- 239000010410 layer Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 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
- 230000008859 change 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
- 238000005516 engineering process Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011247 coating layer Substances 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
- 238000004146 energy storage Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 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
- 238000007747 plating Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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 OR LIGHT-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 OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
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 more 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 is not easy to be burned during capacitor subsequently is made, and the qualification rate of product is up to 96.7%, effectively reduces enterprise's production cost, its dielectric strength is high in more than 1200V, the self-healing ability of manufactured capacitor.
Description
Technical field
The present invention relates to a kind of super thin metal film, belong to capacitor technology field.
Background technology
The super thin metal film generally used currently on the market（≤4μm）, it stays the width in border area to be generally 1mm,
Find in practice, stay border area 1mm to bear the dielectric strength of 1000V DC voltages, and super thin metal film（≤4μm）At present
Usually in the DC circuit less than 800V, so under normal circumstances, super thin metal film only needs reserved 1mm's to stay border area,
Design requirement with regard to that can meet capacitor.But during actual production, because the thickness of super thin metal film is too thin, it is being deposited and is making electricity
Capacity is scalded in the end face spraying process of container, and causes the dielectric strength of capacitor to decline to a great extent.If staying border area excessive, that
Capacitor core after winding easily occurs connecting insufficient breaking area in metal spraying, between the coat of metal and metal spraying end face
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, its qualification rate produced is than relatively low, and generally 70 ~ 83%, cost is higher.With getting up for capacitor application
Rise extensively, power equipment volume requirement is less and less, and also higher and higher to the volume requirement of capacitance accordingly, this requires capacitance
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.
The content of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of super thin metal film, concrete technical scheme 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 includes
Thickened area, gradual changing square resistance area and big sheet resistance area, the thickness of the thickened area are more than the thickness in big sheet resistance area, the gradual changing square resistance area
It is arranged between the caudal of thickened area and the first side in big sheet resistance area, passes through gradual changing square resistance area between the thickened area and big sheet resistance area
It is electrically connected；The caudal in the big sheet resistance area, which is provided with, stays border area.
As the improvement of above-mentioned technical proposal, the thickened area is that zinc plates made of metallic zinc is by technique for vacuum coating
Layer.
As the improvement of above-mentioned technical proposal, the width of the thickened area is 4~5mm.
As the improvement of above-mentioned technical proposal, the width for staying border area is 4mm.
As the improvement of above-mentioned technical proposal, the big sheet resistance area is the aluminium made of metallic aluminium is by technique for vacuum coating
Coating.
As the improvement of above-mentioned technical proposal, the gradual changing square resistance area is made up of allumen of technique for vacuum coating
Transition zone.
As the improvement of above-mentioned technical proposal, the allumen includes metallic zinc, metallic aluminium, terbium peroxide, described
Metallic zinc accounts for the 47.5 ~ 49.1% of allumen gross weight, and terbium peroxide accounts for the 0.026 ~ 0.029% of allumen gross weight,
Surplus is metallic aluminium.
Beneficial effects of the present invention：Super thin metal film of the present invention is not easy during capacitor subsequently is made
It is burned, the qualification rate of product is up to 96.7%, effectively reduces enterprise's production cost, its dielectric strength is made in more than 1200V
Capacitor self-healing ability it is high.
Brief description of the drawings
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.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is 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；It is described
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 more than the thickness in big sheet resistance area 4
Degree, 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, the thickened area 2 and generous
Resistance is electrically connected between 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 the zinc coating made of metallic zinc is by technique for vacuum coating, and the width of the thickened area 2 is
4~5mm, the square resistance of thickened area 2 is 2 ~ 4 Ω/, and thickened area 2 is so that the gilding layer and capacitor core of thin film capacitor
Contact resistance significantly reduce.
The big sheet resistance area 4 is the aluminium coat made of metallic aluminium is by technique for vacuum coating, the square electricity in big sheet resistance area 4
Hinder for 18 ~ 22 Ω/, using aluminum metal coating effectively improve metalized film produce and storage process in anti-atmospheric oxidn it is rotten
Erosion ability, the design of big sheet resistance strengthen the self-healing ability of metalized film, increase the dielectric strength of capacitor.
The gradual changing square resistance area 3 is the transition zone made of allumen is by 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, makes it be changed from metal zinc coating to aluminium metal coating, makes the change of its square resistance appearance from small to large, is known as
Gradual changing square resistance area 3.
Of the present invention to stay the blank tape that border area 5 is ultra-wide, the width for staying border area 5 is 4mm, 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 floor's super thin metal film in upper strata super thin metal film
2, and misalignment area 6 is provided between the side of upper strata super thin metal film and the side of lower floor's super thin metal film, such as
Shown in Fig. 2；Two layers of super thin metal film of the present invention is wound and capacitor core is made again after being superimposed.This kind is wound
Mode and the presence in misalignment area 6, since the width for staying border area 5 is 4mm, plus the misalignment area 6 of 1mm when rolling capacitor core,
The thickened area 2 of 4~5mm wide is just made up, eliminates evaporation hidden danger, and capacitor later stage end face metal spraying scald hidden danger, increase
The dielectric strength of whole capacitor.
It is adapted in the electric current distribution of super thin metal film of the present invention and secondary capacitor, Jie of capacitor
Electric strength is more than 1200V.
The qualification rate of capacitor made of super thin metal film of the present invention is 96.7%, than being steamed with 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 is the transition zone made of allumen is by technique for vacuum coating, the zinc-aluminium
Alloy main component is metallic zinc, metallic aluminium, terbium peroxide is added in smelting process so that the allumen bag after smelting
Containing metallic zinc, metallic aluminium, terbium peroxide, the metallic zinc accounts for the 47.5 ~ 49.1% of allumen gross weight, terbium peroxide
The 0.026 ~ 0.029% of allumen gross weight is accounted for, surplus is metallic aluminium.Since in allumen, zinc, aluminium content approach, therefore
Resistor transition greatly between 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 the present invention
Metallic zinc described in the allumen accounts for the 47.5 ~ 49.1% of allumen gross weight, and terbium peroxide accounts for allumen gross weight
The 0.026 ~ 0.029% of amount, surplus is metallic aluminium.The dielectric strength of film A is 900V.
Contrast experiment
Film B is made with identical technique for vacuum coating in experiment 1 using contrasting allumen and being used on polypropylene film, its
Metallic zinc accounts for the 47.5 ~ 49.1% of allumen gross weight described in middle contrast allumen, and surplus is metallic aluminium.Jie of film B
Electric strength is 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 strengths of the film A after senile experiment is 780V, and dielectric strengths of the film B after senile experiment is 630V,
The film B amplitudes that its dielectric strength declines after senile experiment are 2.25 times of film A.It follows that add in allumen
Add terbium peroxide to slow down the aging in gradual changing square resistance area 3 in the super thin metal film, be 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 essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (7)
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 more 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.
A kind of 2. 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.
A kind of 3. super thin metal film according to claim 1, it is characterised in that：The width of the thickened area for 4~
5mm。
A kind of 4. super thin metal film according to claim 1, it is characterised in that：The width for staying border area is 4mm.
A kind of 5. super thin metal film according to claim 1, it is characterised in that：The big sheet resistance area is by metallic aluminium
Pass through aluminium coat made of technique for vacuum coating.
A kind of 6. super thin metal film according to claim 1, it is characterised in that：The gradual changing square resistance area is by zinc-aluminium
Alloy passes through transition zone made of technique for vacuum coating.
A kind of 7. super thin metal film according to claim 6, it is characterised in that：The allumen includes metal
Zinc, metallic aluminium, terbium peroxide, the metallic zinc account for the 47.5 ~ 49.1% of allumen gross weight, and terbium peroxide accounts for zinc-aluminium
The 0.026 ~ 0.029% of alloy gross weight, surplus are metallic aluminium.
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 true CN107993844A (en) | 2018-05-04 |
| CN107993844B CN107993844B (en) | 2019-07-23 |
Family
ID=62030733
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107993844B (en) |
Cited By (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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107993844B (en) | 2019-07-23 |
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