CN105895367B - A kind of electrode structure of metallizing safety membrane used in capacitor - Google Patents
A kind of electrode structure of metallizing safety membrane used in capacitor Download PDFInfo
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- CN105895367B CN105895367B CN201610378680.XA CN201610378680A CN105895367B CN 105895367 B CN105895367 B CN 105895367B CN 201610378680 A CN201610378680 A CN 201610378680A CN 105895367 B CN105895367 B CN 105895367B
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- coating
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- capacitor
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- 239000012528 membrane Substances 0.000 title claims abstract description 25
- 239000003990 capacitor Substances 0.000 title claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 210000004379 membrane Anatomy 0.000 claims abstract description 24
- 239000011800 void material Substances 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 210000002469 basement membrane Anatomy 0.000 claims abstract description 12
- 239000004743 Polypropylene Substances 0.000 claims abstract description 10
- -1 polypropylene Polymers 0.000 claims abstract description 10
- 229920001155 polypropylene Polymers 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000007747 plating Methods 0.000 claims abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000008719 thickening Effects 0.000 claims abstract description 3
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 3
- 239000011701 zinc Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 16
- 229920002545 silicone oil Polymers 0.000 description 11
- 230000015556 catabolic process Effects 0.000 description 9
- 238000002955 isolation Methods 0.000 description 8
- 238000007639 printing Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000919 ceramic Substances 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
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011104 metalized film Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007738 vacuum evaporation 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
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/14—Protection against electric or thermal overload
- H01G2/16—Protection against electric or thermal overload with fusing elements
-
- 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
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 electrode structure of metallizing safety membrane used in capacitor, for on polypropylene media basement membrane plating zinc/aluminum metal electrode coating form composite membrane, the blank of the composite membrane stay when coating thickeies between by it is some longitudinally, laterally or the layer electrodes in membrane surface are separated into many small electrode units by slanting gap strip.The coating fillet that each small electrode unit has had fuse to act on is communicated with the outside.The present invention is completely the same not with the longitudinal direction of composite membrane the orientation of a row longitudinal void bar adjacent with thickening side, but 3 °~5 ° of the deflection to the left or to the right on the basis of the midpoint of gap strip, the yawing moment of each adjacent gap segment is opposite, the clarity of longitudinal void bar is improved with this, partition effect is reached preferable.
Description
Technical field
The present invention relates to capacitor metallized film, more particularly to a kind of metallizing safety membrane used in capacitor electrode knot
The improvement of structure.
Background technology
The validity that electric weakness self-healing in capacitor is improved using metal metallized safety membrane technology is known.Capacitor gold
Categoryization safe film electrode structure, is that the metallization coating electrode being vaporized on medium is separated into many perhaps with very narrow gap strip
More fritter electrode units, each small electrode unit have had the small coating fillet that fuse acts on and capacitor overall electrode
It is connected, when on the film of this structure if any electric weak point breakdown, disruptive discharge electric current can be the small electrode cell block where the point
The coating fillet of outer company is blown, and breakdown current is extinguished, and makes that there is the small electrode unit of breakdown point to separate with integral capacitor device,
Reach self-healing, though and integral capacitor device have lost the capacitance for being isolated small electrode unit, can maintenance normal work, from
And capacitor is set to improve operating voltage and service life.
The metal metallized safety film of the prior art either grid type or T-shaped, has a row longitudinal arrangement in outermost
Safety diaphragm small electrode unit, with dispatch from foreign news agency interpolar have one carry coating fillet longitudinal isolated interstice band.Working normally
When, each safety diaphragm junior unit is connected with dispatch from foreign news agency interpolar by respective coating fillet；When on safety diaphragm certain small electrode unit have electricity it is weak
During point breakdown, its coating fillet is blown, and the safety diaphragm small electrode unit is thoroughly separated with dispatch from foreign news agency interpolar.But actual
Safety diaphragm is usually unintelligible due to the gap strip of this longitudinal isolation strip, with very thin metallic pollution layer, makes the small electricity of safety diaphragm
After pole unit is fused by electric weak point breakdown, still remain with resistive with dispatch from foreign news agency interpolar and be connected, heating power, causes capacitor slowly
Damage；If metallic pollution is serious, or even when directly making the electric weak point breakdown on safety diaphragm small electrode unit, its coating fillet
It is molten continuous, prevent breakdown point from safe self-healing the climing court of a feudal ruler, cause capacitor to damage.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of Curve guide impeller of safe film electrode, make peace
Full film electrode structure in vacuum evaporation making, protected by small electrode unit and the clarity of longitudinal isolation strip of dispatch from foreign news agency interpolar
Card, improves the security reliability of capacitor.
The technology used in the present invention designing scheme is：
A kind of electrode structure of metallizing safety membrane used in capacitor, is plating zinc/aluminum metal on polypropylene media basement membrane
Layer electrodes form composite membrane, it is characterised in that overall electrode coating is separated into many by the composite membrane with very narrow gap strip
More small electrode units, each small electrode unit have had the small coating fillet and capacitor overall electrode phase of fuse effect
Even.Continuous functional bands on longitudinal direction are formed respectively with the two sides of composite membrane.
The functional bands for no coating stay while or coating thicken while.
The coating of described composite membrane a side thickeies the safety diaphragm small electrode unit for having a row longitudinal arrangement on the inside of side,
It has a row longitudinal void bar, the coating which is outwards connected by each safety diaphragm junior unit of longitudinal arrangement between thickening side
Fillet disjunction is into numerous segments.The width of width, that is, fuse coating fillet of each small intersegmental plated layer partition.Width value is by controlling
The requirement of breakdown current processed determines, is 0.2mm~0.5mm.
Numerous longitudinal void segments, it is characterised in that the orientation of each segment is not and the longitudinal direction of composite membrane complete one
Cause, but deflected to the left or to the right on the basis of the midpoint of gap segment；The yawing moment of each adjacent gap segment is on the contrary, when vertical
It is shorter to gap strip, or when width is larger, larger deflection angle should be selected；Conversely, when longitudinal void bar is longer, or width is smaller
When, answer the deflection angle of selection of small.Deflection angle is 3 °~5 °.
The yawing moment of each adjacent gap segment is opposite, it is characterised in that makes the adjacent end portion of each longitudinal void bar
Deviation is consistent, can just make to keep the coating fillet with fuse effect between adjacent end portion.But longitudinal void bar deflection design
Afterwards, the change of team between end has small increase, therefore need to adjust the length of adjacent gap segment, makes the width of the coating fillet between end
Up to control breakdown current requirement, width value 0.2mm~0.5mm of coating fillet.
In the technical solution adopted in the present invention design, the electrode of original safety diaphragm is made in evaporation processing and fabricating longitudinally every
From with unintelligible, there is the problem of resistive metal pollution layer, after taking the corrective measure of innovation, reach and solve the problems, such as this
Good result.Its reason is described below：
Electrode structure figure on safety diaphragm is to make isolation to overall electrode with the gap strip for not plating metal to be split to form,
And the figure of gap strip, it is that to be printed onto polypropylene media before metallized electrode with extraordinary silicone oil epilamellar, it is all not print
On medium basement membrane at silicone oil, metal layer can be just coated with, small electrode unit, the coating fillet that fuse acts on is formed and adds
Webbing；Metal layer is not just plated at all patterns for printing to silicone oil, becomes gap strip and Liu Bian.Should have at gap strip figure enough
Silicone oil, gap strip figure could be clear, and partition effect is better；Such as silicone oil deficiency, it is unintelligible to produce gap strip figure, partition
Act on bad.
In plated film process, polypropylene media basement membrane is close to high-speed rotating big plating drum with 10~15 meters of high speeds per second
By the way that area is deposited, by first being stamped silicone oil electricity close to big plating drum and the upper high-speed rotating printing roller of basement membrane of drum before area is deposited
Pole figure shape, the silicone oil on high-speed rotating printing roller are close to it is high-speed rotating, has adsorbed the porous of silicone oil by another two
Ceramic roller surface passes to its.It can be seen from the above that during printed pattern, the transverse direction of the axial each point and basement membrane on printing roller surface is each
Point corresponds, and the circle rotation direction on printing roller surface and longitudinal each point of basement membrane make periodically corresponding, longitudinal cycle length
Surface perimeter length of the degree equal to graining roll.Especially for the gap strip figure continuously occurred on one line of longitudinal direction, stamp
Oil recovery on roller at the figure is just concentrated within an extremely narrow circle circumference range for delivery roll, will result in for shortage of oil.It is vertical
Bigger to gap graphic width, for shortage of oil the problem of is also bigger.So in allowed limits, appropriate reduction gap figure is wide
Degree, reduces the demand to printing silicone oil, can improve the clarity of longitudinal void figure；But this method has significant limitation,
Because isolation effect can be influenced when gap graphic width is too small.
Each segmentation deflection for the gap figure that present design longitudinally continuously occurs by allowing on a line, so as to increase
Oil recovery width on delivery roll, can make longitudinal isolation strip gap figure obtain enough printing silicone oil, ensure that polypropylene
After safe film electrode structure has been deposited on medium basement membrane, its longitudinal isolation strip gap strip, which obtains, meets preferable clarity requirement.
For example, the wide 0.3mm of longitudinal void section to(for) longitudinal length 10mm, on the basis of the midpoint of gap segment to the left or to the right partially
After turning 3 °, oil recovery width of the longitudinal void segment figure on delivery roll increases to 0.823mm by 0.3mm, for original 2.74
Times.In plated film process, when basement membrane is advanced with 10 meters per second of speed, oil recovery width of the longitudinal void bar after increase
It is interior, recovered the oil with the contact point of silicone oil delivery roll with the frequency axis of 1000 times per second to moving back and forth, (10m ÷ 10mm=1000),
To obtain enough oil productions, gap strip figure is set clearly without metallic pollution, to separate function well.
Brief description of the drawings
Fig. 1 is the T-shaped metal metallized safety film electrode structure plan when embodiment of the present invention 1 is not improved.
Fig. 2 is the improved T-shaped metal metallized safety film electrode structure plan of the embodiment of the present invention 1.
Fig. 3 is the mesh type metal safe film electrode structure plan when embodiment of the present invention 2 is not improved.
Fig. 4 is the improved mesh type metal safe film electrode structure plan of the embodiment of the present invention 2.
Description of reference numerals：Coating thickeies side (1.1）, small electrode unit (1.12), the coating arrowband of fuse effect
(1.11), side (2.1), lateral clearance bar (2.11), longitudinal void bar (2.12), oblique gap strip (2.13) are stayed.
Embodiment：
The present invention is further illustrated with reference to the accompanying drawings and embodiments.
Embodiment 1：
Embodiment 1 is the improvement to the metal metallized safety composite membrane that T-shaped electrode structure is deposited on polypropylene media material, should
A side of composite membrane is to stay side (2.1）, width 2.5mm；Another side thickeies side (1.1 for coating）, wide 2.2mm；Laterally
Gap strip (2.11) and longitudinal void bar (2.12) and stay side together, film surface layer electrodes are separated into a row longitudinal arrangement
Many small electrode units (1.12), form the metal metallized safety composite membrane (as depicted in figs. 1 and 2) of T-shaped electrode structure；In this reality
Apply in example：The width of gap strip (2.11) and (2.12) is all 0.5mm, and the longitudinal length of small electrode unit (1.12) is 25mm, is melted
Coating arrowband (1.11) width of disconnected device effect is 0.5mm.All longitudinal void bars (2.12) are arranged in a straight line in Fig. 1,
The oil recovery width of its printed pattern is equal to gap length 0.5mm；And in the Curve guide impeller of Fig. 2, all longitudinal void bars
(2.12) 3 ° of the deflection to the left or to the right all on the basis of midpoint, the yawing moment of each adjacent gap segment is opposite.After deflection design,
The left and right oil recovery width of gap strip 2.12 reaches 1.56mm, increases to original 3.13 times, ensure that and steamed on polypropylene media basement membrane
After having plated safe film electrode structure, the clarity for the longitudinal isolation strip gap strip for meeting desirable is obtained.The fuse of composition
The width adjustment of coating fillet is to original 0.5mm.
Embodiment 2
Improvement of the embodiment 2 to the metal metallized safety composite membrane of evaporation grid type electrode structure on polypropylene media material,
A side of the composite membrane is to stay side (2.1）, width 2.0mm；Another side thickeies side (1.1) for coating, wide 2.2mm；By
Oblique gap strip (2.13) and longitudinal void bar (2.12) and stay side together, film surface layer electrodes are separated into many small electrodes
Unit (1.12), forms the metal metallized safety composite membrane of grid type electrode structure (such as Fig. 3,4 show).In the present embodiment：Fusing
Coating arrowband (1.11) width of device effect is 0.3mm, oblique gap strip (2.13) width 0.3mm, longitudinal void bar (2.12)
Wide 0.6mm, length 10mm；All longitudinal void bars (2.12) are arranged in a straight line in figure 3, and longitudinal void bar (2.12) is one
The triangle small electrode unit of row longitudinal arrangement thickeies side (1.1) with coating and separates, and only coating arrowband (1.11) are small electrode
Unit (1.12) thickeies side (1.1) with coating and is connected, and plays fuse protection.And in the Curve guide impeller of Fig. 4, all longitudinal directions
Gap strip (2.12) 5 ° of deflection to the left or to the right all on the basis of midpoint, the yawing moment of each adjacent gap segment is opposite.Deflection
After design, the left and right oil recovery width of gap strip (2.12) reaches 1.37mm, increases to original 2.27 times, ensure that polypropylene media
After safe film electrode structure has been deposited on basement membrane, the clarity for the longitudinal isolation strip gap strip for meeting desirable is obtained.This reality
Apply that the gap strip of example is shorter, so selecting larger deflection angle.The width adjustment of the fuse coating fillet of composition is to original
0.3mm。
The specific example of above-described embodiment only present invention, the equivalent change that all contents according to the present patent application scope are made
Change and modify, all should be the protection domain of technical solution of the present invention.
Claims (2)
1. a kind of electrode structure of metallizing safety membrane used in capacitor, plating zinc/aluminum metal electrode on polypropylene media basement membrane
Coating forms composite membrane, and for composite membrane while staying side (2.1) not plate the blank of metal, another side thickeies side (1.1) for coating,
Blank stay while (2.1) and coating thickening while (1.1) between by longitudinal void bar (2.12) and lateral clearance bar (2.11) or oblique
Film surface layer electrodes are separated into many small electrode units (1.12) by gap strip (2.13), and each small electrode unit has had molten
The small coating fillet of disconnected device effect is connected with the electrode of surrounding, it is characterised in that thickeies side (1.1) and small electrode unit
(1.12) separated among by a row longitudinal void bar (2.12), the row longitudinal void bar (2.12) is by playing the coating of fuse
Fillet (1.11) is connected, and the adjacent gap segment of the row longitudinal void bar (2.12) is deflected to the left or to the right on the basis of midpoint,
The yawing moment of each adjacent gap segment is on the contrary, deflection angle is 3 °~5 °.
2. the electrode structure of metallizing safety membrane used in capacitor according to claim 1, it is characterised in that the coating is narrow
The width of bar (1.11) is 0.2mm~0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610378680.XA CN105895367B (en) | 2016-05-26 | 2016-05-26 | A kind of electrode structure of metallizing safety membrane used in capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610378680.XA CN105895367B (en) | 2016-05-26 | 2016-05-26 | A kind of electrode structure of metallizing safety membrane used in capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN105895367A CN105895367A (en) | 2016-08-24 |
| CN105895367B true CN105895367B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610378680.XA Active CN105895367B (en) | 2016-05-26 | 2016-05-26 | A kind of electrode structure of metallizing safety membrane used in capacitor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360735B (en) * | 2018-11-06 | 2020-07-28 | 安徽赛福电子有限公司 | Heavy-current-resistant safe dry-type direct-current filter capacitor |
| CN109378216B (en) * | 2018-11-28 | 2020-07-28 | 铜陵市新洲电子科技有限责任公司 | Self-healing low-voltage parallel capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6661639B1 (en) * | 2002-07-02 | 2003-12-09 | Presidio Components, Inc. | Single layer capacitor |
| CN101013629A (en) * | 2007-02-01 | 2007-08-08 | 浙江南洋科技股份有限公司 | Electrode structure of power capacitor with metal metallized safety film for reducing temperature rising |
| CN201402744Y (en) * | 2009-04-22 | 2010-02-10 | 佛山市顺德区伦教胜业电器有限公司 | Metalized safety film for capacitor |
| CN203013522U (en) * | 2013-01-08 | 2013-06-19 | 吴卫东 | Metallized safety film dry-type high-voltage power capacitor element |
-
2016
- 2016-05-26 CN CN201610378680.XA patent/CN105895367B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6661639B1 (en) * | 2002-07-02 | 2003-12-09 | Presidio Components, Inc. | Single layer capacitor |
| CN101013629A (en) * | 2007-02-01 | 2007-08-08 | 浙江南洋科技股份有限公司 | Electrode structure of power capacitor with metal metallized safety film for reducing temperature rising |
| CN201402744Y (en) * | 2009-04-22 | 2010-02-10 | 佛山市顺德区伦教胜业电器有限公司 | Metalized safety film for capacitor |
| CN203013522U (en) * | 2013-01-08 | 2013-06-19 | 吴卫东 | Metallized safety film dry-type high-voltage power capacitor element |
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| CN105895367A (en) | 2016-08-24 |
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