CN105895367A - Improvement of longitudinal isolation strip of metalized safety membrane electrode - Google Patents
Improvement of longitudinal isolation strip of metalized safety membrane electrode Download PDFInfo
- Publication number
- CN105895367A CN105895367A CN201610378680.XA CN201610378680A CN105895367A CN 105895367 A CN105895367 A CN 105895367A CN 201610378680 A CN201610378680 A CN 201610378680A CN 105895367 A CN105895367 A CN 105895367A
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- Prior art keywords
- coating
- longitudinal
- electrode
- small
- gap
- 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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- 239000012528 membrane Substances 0.000 title claims abstract description 24
- 238000002955 isolation Methods 0.000 title description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 42
- 238000000576 coating method Methods 0.000 claims abstract description 42
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000004743 Polypropylene Substances 0.000 claims abstract description 9
- -1 polypropylene Polymers 0.000 claims abstract description 9
- 229920001155 polypropylene Polymers 0.000 claims abstract description 9
- 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
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 3
- 239000011701 zinc Substances 0.000 claims abstract description 3
- 239000011800 void material Substances 0.000 claims description 23
- 210000004379 membrane Anatomy 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 210000002469 basement membrane Anatomy 0.000 claims description 11
- 230000015556 catabolic process Effects 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005192 partition Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 19
- 238000011084 recovery Methods 0.000 description 11
- 229920002545 silicone oil Polymers 0.000 description 11
- 238000007639 printing Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency 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
- 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
- 238000000034 method Methods 0.000 description 1
- 230000011218 segmentation Effects 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 invention relates to a metalized safety membrane electrode structure for a capacitor. A zinc/aluminum metal electrode coating coats a polypropylene dielectric base membrane to form a composite membrane, wherein the electrode coating on the surface of the base membrane is partitioned into a plurality of small electrode units by a plurality of longitudinal gap strips, transverse gap strips or diagonal gap strips between a blank margin of the composite membrane and a thickened side of the coating; and each small electrode unit is provided with coating narrow strips for playing a fuse role to be connected with the outside. The orientation of a column of longitudinal gap strips adjacent to the thickened side is not completely consistent with the longitudinal direction of the composite membrane, and deflects towards the left or the right for 3-5 degrees on the basis of the center points of the gap strips; and the deflection directions of adjacent small gap segments are opposite, so that the definition of the longitudinal gap strips is improved; and the partition effect reaches the ideal state.
Description
Technical field
The present invention relates to capacitor metallized film, particularly relate to a kind of metallizing safety membrane used in capacitor electrode structure
Improve.
Background technology
Utilize metal metallized safety membrane technology to improve the effectiveness of electricity weakness spontaneous recovery in capacitor to be known.Capacitor metallizes
Safe film electrode structure, is that the metallization the narrowest gap strip of coating electrode being deposited with on medium is separated into various
Fritter electrode unit, each small electrode unit has had small coating fillet and the capacitor overall electrode phase of fuse effect
Even, time on the film of this structure if any electricity weak point breakdown, disruptive discharge electric current can be outside the small electrode cell block at this place
Coating fillet even blows, and breakdown current is extinguished, and makes the small electrode unit with breakdown point cut off with integral capacitor device,
Reach spontaneous recovery, though and integral capacitor device have lost the capacitance being isolated small electrode unit, can normally work by maintenance,
So that capacitor improves running voltage and service life.
No matter the metal metallized safety film of prior art is grid type or T-shaped, has the peace of string longitudinal arrangement in outermost
Full film small electrode unit, has a longitudinal isolated interstice band with coating fillet with dispatch from foreign news agency interpolar.When normally working,
Each safety diaphragm junior unit is connected by respective coating fillet with dispatch from foreign news agency interpolar；When on safety diaphragm, certain small electrode unit has electric weakness to hit
When wearing, its coating fillet is blown, and makes this safety diaphragm small electrode unit thoroughly be cut off with dispatch from foreign news agency interpolar.But the peace of reality
Full film is usually unintelligible due to the gap strip of this longitudinal isolation strip, with very thin metallic pollution layer, makes safety diaphragm small electrode
Unit, by after electricity weak point breakdown fusing, still remains with resistive with dispatch from foreign news agency interpolar and is connected, and heating power causes capacitor slowly
Damage；If metallic pollution is serious, when the most directly making the electric weak point breakdown on safety diaphragm small electrode unit, its coating is narrow
Bar is molten constantly, make breakdown point can not safe spontaneous recovery and the climing court of a feudal ruler, cause capacitor to damage.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the Curve guide impeller of a kind of safe film electrode, make safety diaphragm
Upper small electrode unit is guaranteed with the definition of longitudinal isolation strip of dispatch from foreign news agency interpolar, improves the security reliability of capacitor.
The technology used in the present invention design is:
The electrode structure of a kind of metallizing safety membrane used in capacitor, for plating zinc/aluminum metal electrode on polypropylene media basement membrane
Coating constitutes composite membrane, it is characterised in that this composite membrane is separated into overall electrode coating various by the narrowest gap strip
Small electrode unit, each small electrode unit has had the small coating fillet of fuse effect to be connected with capacitor overall electrode.
Dual-side at composite membrane is formed respectively with continuous print functional bands on longitudinally.
Described functional bands is that stay limit or coating without coating add webbing.
The coating of described composite membrane one side adds the inner side of webbing the safety diaphragm small electrode unit of string longitudinal arrangement, it with
Add and between webbing, have a longitudinal void bar, the coating fillet that this gap strip is outwards connected by each safety diaphragm junior unit of longitudinal arrangement
Disjunction becomes numerous segment.The width i.e. width of fuse coating fillet that each little intersegmental plated layer cuts off.Width value is hit by control
The requirement wearing electric current determines, preferably scope is 0.2mm～0.5mm.
Described numerous longitudinal void segments, it is characterised in that the orientation of each segment is not completely the same with the longitudinal direction of composite membrane,
But deflect to the left or to the right on the basis of the midpoint of space segment；The yawing moment of each adjacent space segment is contrary, works as longitudinal direction
Gap strip is shorter, or when width is bigger, should select bigger deflection angle；Otherwise, when longitudinal void bar is longer, or width is relatively
Hour, answer the deflection angle of selection of small.The preferred value of deflection angle is 3 °～5 °.
The yawing moment of described each adjacent space segment is contrary, it is characterised in that make the adjacent end portion of each longitudinal void bar be partial to
Unanimously, the coating fillet keeping between adjacent end portion that there is fuse effect can just be made.But after the deflection design of longitudinal void bar,
The width of the coating fillet between end has small increase, therefore need to adjust the length of adjacent space segment, makes the coating between end
The width of fillet reaches and controls preferred value 0.2mm～the 0.5mm that breakdown current requires.
In the technical solution adopted in the present invention design, unintelligible to longitudinal isolation strip of original safety diaphragm, there is resistive gold
The problem belonging to pollution layer, after taking the corrective measure of innovation, has good result.Its reason is described below:
Electrode structure figure on safety diaphragm is that overall electrode work isolation is split to form by the gap strip with not plating, and
The figure of gap strip, is that to be printed onto polypropylene media with extraordinary silicone oil before metallized electrode epilamellar, all does not prints
On medium basement membrane at silicone oil, just can be coated with metal level, form small electrode unit, the coating fillet of fuse effect
With add webbing；Just do not plate metal level at all patterns printing to silicone oil, become gap strip and Liu Bian.Should at gap strip figure
Having enough silicone oil, gap strip figure could be clear, and partition effect is better；As silicone oil is not enough, gap strip figure will be produced
Shape is unintelligible, and partition effect is bad.
In the plated film course of processing, polypropylene media basement membrane againsts the big plating drum of high speed rotating with 10～15 meters of high speeds per second
By evaporation district, by first being stamped silicone oil by the printing roller that against big plating drum and the upper basement membrane high speed rotating of drum before evaporation district
Electrode pattern, the silicone oil on the printing roller of high speed rotating is against its high speed rotating by another root, has been adsorbed silicone oil
Porous ceramics roller surface passes to its.As can be seen here, during printed pattern, the axial each point on printing roller surface and basement membrane
Horizontal each point one_to_one corresponding, the circumference direction of rotation on printing roller surface and longitudinal each point of basement membrane are made the most corresponding,
Longitudinal Cycle Length is equal to the surface perimeter length of graining roll.Especially for the space continuously occurred on a longitudinally line
Figure, within graining roll, oil recovery at this figure just concentrates on a narrowest circle circumference range of delivery roll, will result in
For shortage of oil.Longitudinal void graphic width is the biggest, and the problem for shortage of oil is the biggest.So in allowed limits, suitable
When reducing space graphic width, reduce the demand to printing silicone oil, the definition of longitudinal void figure can be improved；But this
Method has significant limitation, because affecting isolation effect when space graphic width is the least.
Present design is by allowing each segmentation deflection of the space figure occurred continuously on a longitudinal line, thus adds
Oil recovery width on delivery roll, can make longitudinal space, isolation strip figure obtain enough printing silicone oil, it is ensured that polypropylene
After being deposited with safe film electrode structure on medium basement membrane, it is thus achieved that meet longitudinal isolation strip gap strip clear of desirable
Degree.Such as, for the longitudinal void section of the wide 0.3mm of longitudinal length 10mm, on the basis of the midpoint of space segment to
After a left side or to the right deflection 3 °, this longitudinal void segment figure oil recovery width on delivery roll is increased to by 0.3mm
0.823mm, for original 2.74 times.In the plated film course of processing, when basement membrane advances with the speed of 10 meters per second,
In longitudinal void bar oil recovery width after increase, axial with the frequency of 1000 times per second with the contact point of silicone oil delivery roll
Move back and forth oil recovery, (10m ÷ 10mm=1000), to obtain enough oil productions, make gap strip figure clear without metal
Pollute, cut off function well.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 T-shaped metal metallized safety film electrode structure plane graph when not improving.
Fig. 2 is the T-shaped metal metallized safety film electrode structure plane graph after the embodiment of the present invention 1 is improved.
Fig. 3 is the embodiment of the present invention 2 mesh type metal safe film electrode structure plane graph when not improving.
Fig. 4 is the mesh type metal safe film electrode structure plane graph after the embodiment of the present invention 2 is improved.
Description of reference numerals: coating adds webbing 1.1, small electrode unit 1.12, the coating arrowband 1.11 of fuse effect,
Stay limit 2.1, lateral clearance bar 2.11, longitudinal void bar 2.12, oblique gap strip 2.13.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment 1:
Embodiment 1 is the improvement to the metal metallized safety composite membrane being deposited with T-shaped electrode structure on polypropylene media material, and this is multiple
One side of conjunction film is for staying limit 2.1, and width is 2.5mm；Another side is that coating adds webbing 1.1, wide 2.2mm；The most empty
Gap bar 2.11 and longitudinal void bar 2.12 and together with staying limit, be separated into film surface electrode coating the many of string longitudinal arrangement
Small electrode unit 1.12, constitutes the metal metallized safety composite membrane (as depicted in figs. 1 and 2) of T-shaped electrode structure；In this reality
Executing in example: the width of gap strip 2.11 and 2.12 is all 0.5mm, the longitudinal length of small electrode unit 1.12 is 25mm, molten
Coating arrowband 1.11 width of disconnected device effect is 0.5mm.The most all of longitudinal void bar 2.12 is arranged in a straight line,
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 of longitudinal void bar
2.12 all deflect 3 ° on the basis of midpoint to the left or to the right, and the yawing moment of each adjacent space segment is contrary.After deflection design,
The left and right oil recovery width of gap strip 2.12 reaches 1.564mm, increases to original 3.13 times, it is ensured that polypropylene media basement membrane
On be deposited with safe film electrode structure after, it is thus achieved that meet the definition of longitudinal isolation strip gap strip of desirable.Constitute is molten
The width adjustment of disconnected device coating fillet is to original 0.5mm.
Embodiment 2
The improvement of the embodiment 2 metal metallized safety composite membrane to being deposited with grid type electrode structure on polypropylene media material, this is multiple
One side of conjunction film is for staying limit 2.1, and width is 2.0mm；Another side is that coating adds webbing 1.1, wide 2.2mm；By oblique
Gap strip 2.13 and longitudinal void bar 2.12 and together with staying limit, be separated into many small electrode unit film surface electrode coating
1.12, constitute the metal metallized safety composite membrane (such as Fig. 3,4 showing) of grid type electrode structure.In the present embodiment: fuse
Coating arrowband 1.11 width of effect is 0.3mm, the wide 0.3mm of oblique gap strip 2.13, the width of longitudinal void bar 2.12
0.6mm, length 10mm；The most all of longitudinal void bar 2.12 is arranged in a straight line, longitudinal void bar 2.12
Triangle small electrode unit and the coating of row longitudinal arrangement add webbing 1.1 and separate, only 1.11, coating arrowband small electrode list
Unit 1.12 adds webbing 1.1 with coating and is connected, and plays fuse protection effect.And in the Curve guide impeller of Fig. 4, all of longitudinal direction
Gap strip 2.12 all deflects 5 ° on the basis of midpoint to the left or to the right, and the yawing moment of each adjacent space segment is contrary.Partially
After turning design, the left and right oil recovery width of gap strip 2.12 reaches 1.37mm, increases to original 2.27 times, it is ensured that poly-third
After being deposited with safe film electrode structure on alkene medium basement membrane, it is thus achieved that meet longitudinal isolation strip gap strip clear of desirable
Degree.The gap strip of the present embodiment is shorter, so selecting bigger deflection angle.The width adjustment of the fuse coating fillet constituted
To original 0.3mm.
Above-described embodiment is only the object lesson of the present invention, all equivalence changes made according to the content of the present patent application scope with
Modify, all should be the protection domain of technical solution of the present invention.
Claims (4)
1. an electrode structure for metallizing safety membrane used in capacitor, for plating zinc on polypropylene media basement membrane/aluminum metal electricity
Pole coating constitutes composite membrane, it is characterised in that the blank that a side is not plating of this composite membrane stays limit 2.1, another side
Add webbing 1.1 for coating, staying limit 2.1 and adding between webbing 1.1 by longitudinal void bar 2.12, lateral clearance bar 2.11
Or oblique 2.13 film surface electrode coating of gap strip are separated into many small electrode unit 1.12, make each with playing fuse
Small coating fillet be connected with the lateral electrode of surrounding.
The electrode structure of metal metallized safety film the most according to claim 1, it is characterised in that described small electrode unit
Having the 1.12 of string longitudinal arrangement in 1.12, adjacent with adding webbing 1.1, centre is separated by string longitudinal void bar 2.12,
The coating fillet being played again fuse effect by each small electrode unit is connected；Described longitudinal void bar 2.12 orientation not
Completely the same with the longitudinal direction of composite membrane, but deflect to the left or to the right on the basis of the midpoint of gap strip, each adjacent space segment
Yawing moment contrary.
3. according to the electrode structure of the metal metallized safety film described in claim 1,2, it is characterised in that described is each the most empty
Gap bar 2.12 is when deflecting to the left or to the right on the basis of midpoint, and deflection angle size is by the length of longitudinal void bar 2.12 and width
Degree determines, when length is shorter, or when width is bigger, should select bigger deflection angle；Otherwise, when longitudinal void bar is longer,
Or width less time, answer the deflection angle of selection of small, preferred value is in the range of 3 °～5 °.
4. according to the electrode structure of the metal metallized safety film described in claim 1,2,3, it is characterised in that described is adjacent
The width value of the coating fillet constituted between gap strip termination should adjust, and this width value is by controlling the requirement of breakdown current certainly
Fixed, preferably scope 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105895367A true CN105895367A (en) | 2016-08-24 |
| CN105895367B CN105895367B (en) | 2018-04-20 |
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN105895367B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360735A (en) * | 2018-11-06 | 2019-02-19 | 安徽赛福电子有限公司 | A kind of safety-type dry type DC filter condenser of resistance to high current |
| CN109378216A (en) * | 2018-11-28 | 2019-02-22 | 铜陵市新洲电子科技有限责任公司 | A kind of self-recovery 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360735A (en) * | 2018-11-06 | 2019-02-19 | 安徽赛福电子有限公司 | A kind of safety-type dry type DC filter condenser of resistance to high current |
| CN109378216A (en) * | 2018-11-28 | 2019-02-22 | 铜陵市新洲电子科技有限责任公司 | A kind of self-recovery low-voltage parallel 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 |
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| Publication number | Publication date |
|---|---|
| CN105895367B (en) | 2018-04-20 |
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