CN104934221A - Wear-resistant double-sided metal electrical membrane of capacitor - Google Patents
Wear-resistant double-sided metal electrical membrane of capacitor Download PDFInfo
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- CN104934221A CN104934221A CN201510362418.1A CN201510362418A CN104934221A CN 104934221 A CN104934221 A CN 104934221A CN 201510362418 A CN201510362418 A CN 201510362418A CN 104934221 A CN104934221 A CN 104934221A
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Abstract
The invention discloses a wear-resistant double-sided metal electrical membrane of a capacitor, belonging to the technical field of an electrical membrane. A high-vacuum metal deposition technology is adopted, and an obtained metal membrane layer can be quite thin and very uniform; meanwhile, the uniform metal membrane layer is a guarantee to favorable capacitor performance, and capacity difference of the capacitor and inconsistent capacitor cores after winding are avoided; and moreover, since the evaporated metal membrane layer is quite thin, favorable flatness of a thin membrane dielectric layer can be kept during evaporation process, and the technical problems of difficult control on thermal deformation in the prior art and easiness in abrasion of the metal membrane layer on a surface are effectively solved. The wear-resistant double-sided metal electrical membrane of the capacitor comprises a polyethylene terephthalate dielectric layer and the metal membrane layer, wherein the metal membrane layer is evaporated on the surface of the polyethylene terephthalate dielectric layer, and at least two metal wear-resistant strips parallel to each other are arranged on the surface of the metal membrane layer.
Description
Technical field
The invention belongs to electrical membrane technical field, relate to a kind of wear-resisting capacitor two-sided metallization electrical membrane.
Background technology
China successively introduces nearly hundred vacuum coating production lines from external, wherein in the majority with general filming equipment.At electrical membrane metallizing art, because coating process, separating and cutting process difficulty are large, rate of finished products is difficult to control, and domestic enterprise seldom sets foot in.The capacitor that such film makes, with advantages such as capacity are large, good stability, self-healing ability are strong, more and more dominates the market.Consider that electrical membrane increasing market is large, but be difficult to control due to electrical membrane thermal deformation, and the metallic diaphragm on surface is easy to wearing and tearing, is very limited in actual applications.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of wear-resisting capacitor two-sided metallization electrical membrane, and thermal deformation can be well controlled, and effectively prevents metallic diaphragm from wearing and tearing.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of wear-resisting capacitor two-sided metallization electrical membrane, be made up of at the metallic diaphragm of described PETG dielectric layer surface PETG dielectric layer and evaporation, described metal film layer surface is provided with at least two abrasion-resistant metal bands parallel to each other.
Wherein, PETG (Polyethylene terephthalate is called for short PET), resistance to creep, resistance to fatigue resistance, abrasion-resistant and good stability of the dimension, wear away little and hardness is high, have excellent toughness, electrical insulation capability is good, and temperature influence is little, nontoxic, weatherability, chemical proof good stability, water absorption rate is low, weak acid resistant and organic solvent, is quite desirable dielectric layer material.Adopt high vacuum metal deposition technique in the present invention, in high vacuum conditions, will be deposited metal material and be heated to and melt and flash to gaseous state, vaporous atom or molecule are deposited on membrane surface with condensing mode, form metallic diaphragm.Like this, the metallic diaphragm obtained can be quite thin, and very even, meanwhile, uniform metallic diaphragm be also good capacitive property guarantee, after avoiding the capacity of capacitor to occur difference and winding, capacitor body is not of uniform size causes.Because the metallic diaphragm of evaporation is quite thin, solve in prior art the technical problem being difficult to control thermal deformation very well, the good planarization of thin film dielectric layer can be kept in evaporate process.And be attached with abrasion-resistant metal band at metal film layer surface, in use abrasion-resistant metal band can available protecting metallic diaphragm, reduces its loss, prevents wearing and tearing.
Preferably, the equal evaporation of upper and lower surface of described PETG dielectric layer has metallic diaphragm.Form the two-sided metallization electrical membrane structure of A-B-A, thermal deformation can be well controlled.
Preferably, described metal film layer surface is interval with groove parallel to each other.Metallic diaphragm is provided with groove, can slight deformation adjusts in thermal deformation situation, solve in prior art the technical problem being difficult to control thermal deformation very well, the good planarization of thin film dielectric layer can be kept in evaporate process.
Preferably, described groove extends to PETG dielectric layer surface by metal film layer surface.Slight deformation can adjust in thermal deformation situation, the good planarization of thin film dielectric layer can be kept in evaporate process.
Preferably, described metallic diaphragm is alumin(i)um zinc alloy layer, titanium layer or silver layer.Adopt alumin(i)um zinc alloy material as metallic diaphragm, cost is lower, and adopts titanium material as metallic diaphragm, and strong adhesion, anti-wear performance is more excellent, and ag material also can be adopted as metallic diaphragm, but cost is higher.
Preferably, described abrasion-resistant metal band is zinc band.Zinc band is attached to metal film layer surface, in use can available protecting metallic diaphragm, reduces its loss, prevents wearing and tearing.
Compared with prior art, advantage of the present invention is: wear-resisting capacitor two-sided metallization electrical membrane of the present invention adopts high vacuum metal deposition technique, in high vacuum conditions, metal material will be deposited be heated to and melt and flash to gaseous state, vaporous atom or molecule are deposited on membrane surface with condensing mode, form metallic diaphragm.Like this, the metallic diaphragm obtained can be quite thin, and very even, meanwhile, uniform metallic diaphragm be also good capacitive property guarantee, after avoiding the capacity of capacitor to occur difference and winding, capacitor body is not of uniform size causes.Because the metallic diaphragm of evaporation is quite thin, and on metallic diaphragm, be provided with groove, slight deformation can adjust in thermal deformation situation, the good planarization of thin film dielectric layer can be kept in evaporate process, effectively solve in prior art the technical problem being difficult to control thermal deformation.And be attached with abrasion-resistant metal band at metal film layer surface, in use abrasion-resistant metal band can available protecting metallic diaphragm, reduces its loss, prevents wearing and tearing.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the structural representation of a kind of wear-resisting capacitor two-sided metallization electrical membrane embodiment 1 of the present invention.
Embodiment
As shown in Figure 1, for wear-resisting capacitor two-sided metallization electrical membrane embodiment 1 of the present invention, be made up of at the metallic diaphragm 2 on described PETG dielectric layer 1 surface PETG dielectric layer 1 and evaporation, the equal evaporation of upper and lower surface of described PETG dielectric layer 1 has metallic diaphragm 2.Described metallic diaphragm 2 spaced surface is provided with groove 3 parallel to each other.Described groove 3 extends to PETG dielectric layer 1 surface by metallic diaphragm 2 surface.Described metallic diaphragm 2 surface is provided with at least two abrasion-resistant metal bands 4 parallel to each other.Described metallic diaphragm 2 can be alumin(i)um zinc alloy layer, titanium layer or silver layer.Described abrasion-resistant metal band 4 is zinc band.
The wear-resisting capacitor two-sided metallization electrical membrane of the present embodiment adopts high vacuum metal deposition technique, in high vacuum conditions, to be deposited metal material to be heated to and to melt and flash to gaseous state, vaporous atom or molecule are deposited on membrane surface with condensing mode, form metallic diaphragm.Like this, the metallic diaphragm 2 obtained can be quite thin, and very even, meanwhile, uniform metallic diaphragm 2 be also good capacitive property guarantee, after avoiding the capacity of capacitor to occur difference and winding, capacitor body is not of uniform size causes.Because the metallic diaphragm 2 of evaporation is quite thin, and on metallic diaphragm, be provided with groove, and, metallic diaphragm 2 is provided with groove 3, can slight deformation adjust in thermal deformation situation, the good planarization of PETG dielectric layer 1 can be kept in evaporate process, effectively solve in prior art the technical problem being difficult to control thermal deformation.And have abrasion-resistant metal band 4 in metallic diaphragm 2 surface attachment, in use abrasion-resistant metal band 4 can available protecting metallic diaphragm 2, reduces its loss, prevents wearing and tearing.
Show through test, wear-resisting capacitor two-sided metallization electrical membrane of the present invention can make capacitor at 125 ~ 155 DEG C, the condenser capacity made is large, stability good, self-healing ability is strong, and its loss can be reduced, prevent wearing and tearing, can long-term work under the adverse circumstances of temperature 85 DEG C, humidity 85 °, rate of finished products increases by 30 ~ 50% than metallization vapor-deposited film of the prior art.
The foregoing is only specific embodiments of the invention, but technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (6)
1. a wear-resisting capacitor two-sided metallization electrical membrane, it is characterized in that: be made up of at the metallic diaphragm (2) on described PETG dielectric layer (1) surface PETG dielectric layer (1) and evaporation, described metallic diaphragm (2) surface is provided with at least two abrasion-resistant metal bands (4) parallel to each other.
2. a kind of wear-resisting capacitor two-sided metallization electrical membrane as claimed in claim 1, is characterized in that: the equal evaporation of upper and lower surface of described PETG dielectric layer (1) has metallic diaphragm (2).
3. a kind of wear-resisting capacitor two-sided metallization electrical membrane as claimed in claim 2, is characterized in that: described metallic diaphragm (2) spaced surface is provided with groove (3) parallel to each other.
4. a kind of wear-resisting capacitor two-sided metallization electrical membrane as claimed in claim 3, is characterized in that: described groove (3) extends to PETG dielectric layer (1) surface by metallic diaphragm (2) surface.
5. the wear-resisting capacitor two-sided metallization of the one as described in Claims 1-4 any one electrical membrane, is characterized in that: described metallic diaphragm (2) is alumin(i)um zinc alloy layer, titanium layer or silver layer.
6. the wear-resisting capacitor two-sided metallization of the one as described in Claims 1-4 any one electrical membrane, is characterized in that: described abrasion-resistant metal band (4) is zinc band.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510362418.1A CN104934221A (en) | 2015-06-25 | 2015-06-25 | Wear-resistant double-sided metal electrical membrane of capacitor |
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| CN201510362418.1A CN104934221A (en) | 2015-06-25 | 2015-06-25 | Wear-resistant double-sided metal electrical membrane of capacitor |
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| CN204080069U (en) * | 2014-09-09 | 2015-01-07 | 安徽铜峰电子股份有限公司 | For the zinc fender plate that super-high sheet resistance metalized film is zinc-plated |
| CN104319095A (en) * | 2014-11-17 | 2015-01-28 | 江苏现代电力科技股份有限公司 | Metallized film for capacitor and manufacturing process thereof |
| CN204130349U (en) * | 2014-09-28 | 2015-01-28 | 宁国市裕华电器有限公司 | A kind of Novel polypropylene film capacitor |
| CN204668155U (en) * | 2015-06-25 | 2015-09-23 | 浙江七星电容器有限公司 | A kind of wear-resisting capacitor two-sided metallization electrical membrane |
-
2015
- 2015-06-25 CN CN201510362418.1A patent/CN104934221A/en active Pending
Patent Citations (18)
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| JPS63318120A (en) * | 1987-06-19 | 1988-12-27 | Matsushita Electric Ind Co Ltd | Metallized plastic film capacitor |
| JP2000100646A (en) * | 1998-09-25 | 2000-04-07 | Nissin Electric Co Ltd | Capacitor element |
| JP2000269068A (en) * | 1999-03-15 | 2000-09-29 | Mitsubishi Shindoh Co Ltd | Metallized film and film capacitor |
| CN2686062Y (en) * | 2004-04-02 | 2005-03-16 | 佛山市顺德区创格电子实业有限公司 | Middle and high voltage metal organic thin membrane type capacitor |
| CN1962928A (en) * | 2005-11-10 | 2007-05-16 | 上海奥移电器有限公司 | Film-coating technology for metallized film materials and products thereof |
| CN201256081Y (en) * | 2008-08-13 | 2009-06-10 | 厦门法拉电子股份有限公司 | Pure aluminum zincous thickened metalized thin-film for capacitor |
| CN102394176A (en) * | 2011-09-28 | 2012-03-28 | 长兴柏成电子有限公司 | Production process of metallized polyester film dielectric capacitor |
| CN202839311U (en) * | 2012-10-11 | 2013-03-27 | 四川省科学城久信科技有限公司 | High-sheet-resistance multiple-inner-string double-faced metallized film production impulse capacitor |
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Application publication date: 20150923 |