CN103035405A - Stuffing for capacitor and preparation method thereof - Google Patents
Stuffing for capacitor and preparation method thereof Download PDFInfo
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- CN103035405A CN103035405A CN2012105316656A CN201210531665A CN103035405A CN 103035405 A CN103035405 A CN 103035405A CN 2012105316656 A CN2012105316656 A CN 2012105316656A CN 201210531665 A CN201210531665 A CN 201210531665A CN 103035405 A CN103035405 A CN 103035405A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention relates to a stuffing for a capacitor. The stuffing for the capacitor, according to the quality percentage, comprises 20% to 40% of vegetable oil, 2% to10% of paraffin, 45% to75% of stuffing, and 0.5% to 5% of vegetable oil antioxidant additives. The preparation method of the stuffing for the capacitor includes the following procedures: the vegetable oil is heated up to 80 DEG C to 120 DEG C, is under vacuum treatment at least 8 hours, then breaking the vacuum, is added into vegetable oil antioxidant additives, and is under vacuum treatment again at least 8 hours with the temperature keeping in the range of 80 DEG C to 120 DEG C. The paraffin is heated up to 70 DEG C to 120 DEG C to melt. The stuffing for the capacitor can be obtained through mixing the vegetable oil after the heat treatment, melted paraffin and the stuffing together. The stuffing for the capacitor has electrical performance and physics and chemistry performance.
Description
Technical field
The present invention relates to capacitor area, particularly, the present invention relates to a kind of capacitor inserts and preparation method thereof.
Background technology
The metal plastic membrane capacitance comprises terylene and Merlon metallized capacitor, and using in DC circuit has had the history in more than 20 year.
Replace the paper foil construction with metallized polypropylene, can dwindle the size of capacitor and improve its performance.About this class capacitor is usually half as large than corresponding paper foil construction, and its dielectric loss is very little, can eliminate thermal failure phenomenon common in the paper foil construction, can also conserve energy.
CBB65 type capacitor is a kind of metallized polypropylene film motor running electric capacity, and it adopts metallized polypropylene film is medium, utilizes high-speed winder closely to roll, and the aluminum hull encapsulation forms, and is a kind of negative temperature coefficient polarity free capacitor.
CBB65 type capacitor mainly is used in compressor of air conditioner, the alternating current motor, it in process of production, need between housing and fuse, fill a kind of material, reach the effect of secluding air and heat radiation, traditional way is single filling plant oil or mineral oil in capacitor, perhaps the mode of wax oil mixing.
CN 102290234A discloses a kind of alternating current wet-type capacitor saturant, comprises castor oil, salad wet goods vegetable oil or methyl-silicone oil, polymethylphenyl siloxane fluid, PO wet goods mineral oil and hydrated magnesium silicate superfine powder.
CN 102496460A discloses a kind of metallized polypropylene film capacitor, and it has adopted polyisobutene impregnating agent.
Japan Patent JP 03035513 introduces and adopts polybutene-alkyl benzene-cottonseed oil mixture embedding.
US Patent No. 6,280,659 usefulness vegetable oil embedding capacitors.
But the electrical property of used inserts in the prior art (for example resistivity, dielectric constant) and physicochemical property (heat radiation, secluding air) all can not be satisfied the demand.
Summary of the invention
For the deficiencies in the prior art, one of purpose of the present invention is to provide a kind of capacitor inserts.Described capacitor is capacitor impregnating agent with inserts, and its energy secluding air, heat radiation can improve the electrical property of capacitor, and can gain in weight.
Described capacitor comprises according to mass percent with inserts:
The content of described vegetable oil can be 20.1%, 20.2%, 20.3%, 21%, 22%, 24%, 26%, 30%, 35%, 37%, 38%, 39%, 39.5%, 39.8%, 39.9% etc.
The content of described paraffin can be 2.1%, 2.2%, 2.3%, 2.9%, 3.1%, 3.5%, 4%, 5%, 7%, 9%, 9.5%, 9.7%, 9.8%, 9.9% etc.
The content of described filler can be 45.1%, 45.2%, 46%, 47%, 50%, 54%, 56%, 58%, 59%, 61%, 64%, 66%, 70%, 73%, 74% etc.
The content of described vegetable oil antioxidant additive can be 0.51%, 0.52%, 0.6%, 0.7%, 0.9%, 1.1%, 1.2%, 1.5%, 1.9%, 2.1%, 2.2%, 2.5%, 2.9%, 3.1%, 3.2%, 3.5%, 4%, 4.5%, 4.8%, 4.9% etc.
Preferably, described capacitor comprises according to mass percent with inserts:
Preferably, described capacitor comprises according to mass percent with inserts:
Particularly preferably, described capacitor is composed of the following components according to mass percent with inserts:
Preferably, described vegetable oil is a kind or at least 2 kinds combination in peanut oil, soya-bean oil, linseed oil, castor oil, rapeseed oil, corn oil, sunflower oil, olive oil, coconut oil, palm oil or the linseed oil, is particularly preferably castor oil.
Preferably, described filler is silicon powder and/or talcum powder; Described silicon powder is by natural quartz (SiO
2) or vitreous silica (natural quartz is through high-temperature fusion, cooled amorphous Si O
2) micro mist that forms through multiple tracks processes such as broken, ball milling (or vibration, airflow milling), flotation, pickling purification, high purity water processing.Silicon powder is a kind of nontoxic, tasteless, free of contamination Inorganic Non-metallic Materials, possess that temperature tolerance is good, the good performance such as acid-alkali-corrosive-resisting, poor thermal conductivity, high insulation, low bulk, stable chemical performance, hardness are large, one of ordinary skill in the art can prepare by commercially available acquisition or according to prior art/new technology; Described talcum powder main component is talcum, and the talcum main component is the moisture magnesium silicate of talcum, and molecular formula is Mg
3[Si
4O
10] (OH)
2Have lubrification, anti-stick, help stream, fire resistance, acid-resisting, insulating properties, fusing point height, chemical property torpescence, covering power well, good physics, the chemical characteristic such as softness, good luster, absorption affinity be strong, one of ordinary skill in the art can prepare by commercially available acquisition or according to prior art/new technology.Described filler can also contain other material, such as titanium dioxide, calcium carbonate, barium sulfate, mica powder etc.
Preferably, the particle diameter of described filler is below the 1 μ m, such as 0.99 μ m, 0.98 μ m, 0.97 μ m, 0.95 μ m, 0.9 μ m, 0.8 μ m, 0.7 μ m, 0.6 μ m, 0.51 μ m, 0.49 μ m, 0.4 μ m, 0.3 μ m, 0.2 μ m, 0.1 μ m, 0.05 μ m etc. is particularly preferably below the 0.5 μ m.
Described paraffin claims again crystalline wax, and normally the waxy solid of white, colorless and odorless dissolves the about 0.9g/cm of density at 47 ℃ ~ 64 ℃
3It is water insoluble, but dissolves in ether, benzene and some ester.Paraffin refined wax is good insulator, and its resistivity is 1013 ~ 1017 ohm meters, and is all higher than the most of materials except some plastics (especially Teflon).Paraffin also is good heat accumulating, and its specific heat capacity is 2.14 ~ 2.9Jg-1K
-1, melting heat is 200 ~ 220Jg
-1
Described vegetable oil antioxidant additive comprises crude vegetal antioxidant additive and artificial plant oil antioxidant additive, preferably, described vegetable oil antioxidant additive is tocopherol, sesamol, gossypol, forulic acid, Tea Polyphenols, ether is repeatedly fragrant, the BHA(butylation is through the fragrant ether of basic mattress), the BHT(butylation is through basic toluene) or the TBHQ(TBHQ) in a kind or at least 2 kinds combination, the typical but non-limiting example of described combination comprises: the combination of tocopherol and sesamol, the combination of gossypol and forulic acid, Tea Polyphenols, ether is the combination of fragrant and BHA repeatedly, BHA, the combination of BHT and TBHQ, tocopherol, sesamol, the combination of gossypol and forulic acid, gossypol, forulic acid, Tea Polyphenols and ether is the combination of perfume repeatedly, Tea Polyphenols, ether is repeatedly fragrant, BHA, the combination of BHT and TBHQ, sesamol, gossypol, forulic acid, Tea Polyphenols, ether is the combination of fragrant and BHA repeatedly, gossypol, forulic acid, Tea Polyphenols, ether is repeatedly fragrant, BHA, the combination of BHT and TBHQ etc.
Described capacitor also can contain other materials with inserts, such as mineral oil (such as methyl-silicone oil, polymethylphenyl siloxane fluid, PO wet goods), hydrated magnesium silicate superfine powder, benzyl toluene or diarylethane etc.
One of purpose of the present invention is to provide the purposes of a kind of described capacitor with inserts.
Described capacitor can be used for the metallized polypropylene film capacitor with inserts, is particularly preferred for CBB65 type aluminum-casing capacitor.
One of purpose of the present invention is to provide the preparation method of a kind of described capacitor with inserts.
Described capacitor may further comprise the steps with the preparation method of inserts:
(1) vegetable oil is warmed up to 80 ~ 120 ℃, vacuum treatment at least 8 hours, then vacuum breaker adds the vegetable oil antioxidant additive, and vacuum treatment is at least 8 hours again, and temperature maintains 80 ~ 120 ℃;
(2) with heating paraffin to 70 ~ 120 ℃, make its thawing;
The paraffin of the thawing that the vegetable oil that (3) step (1) is obtained, step (2) obtain and filler mix, and obtain the capacitor inserts.
Preferably, the described vacuum treatment first time of step (1) temperature is 90 ~ 110 ℃, is particularly preferably 100 ℃.
Preferably, step (1) the described first time of vacuum processing time is 10 ~ 15 hours, is particularly preferably 12 hours.
Preferably, the described vacuum treatment second time of step (1) temperature is 90 ~ 110 ℃, is particularly preferably 100 ℃.
Preferably, step (1) the described second time of vacuum processing time is 10 ~ 15 hours, is particularly preferably 12 hours.
Preferably, the described melted paraffin wax temperature of step (2) is 75 ~ 100 ℃, is particularly preferably 80 ℃.
Preferably, mix on the described limit that is mixed in the mixture of paraffin that the limit is added to filler the thawing that vegetable oil that step (1) obtains and step (2) obtain of step (3).
Preferably, the described mixing temperature of step (3) is 70 ~ 120 ℃, more preferably 75 ~ 100 ℃, is particularly preferably 80 ℃.
If capacitor of the present invention is with also containing other material in the inserts, so described other material and vegetable oil antioxidant additive add in step (1) simultaneously.
Vacuum finger pressure of the present invention is by force less than the state of a standard atmospheric pressure, such as gauge pressure be-0.1MPa ,-0.2MPa ,-1MPa etc.
The order that it will be understood by those skilled in the art that step (1) and step (2) can be changed, and perhaps carries out simultaneously, all in the claimed scope of claims of the present invention.
Adopt the capacitor of the method for the invention preparation to mix with each component of inserts, therefore have excellent character, such as large dielectric constant, large puncture voltage, large resistivity etc.
With compare in the prior art, capacitor of the present invention has the following advantages with inserts:
(1) raw material are common, and cost is lower;
(2) production technology is simple, is easy to large-scale application;
(3) have excellent physicochemical property, effectively secluding air, and heat radiation, stable chemical nature is difficult for decomposing simultaneously;
(4) have excellent electric property, have large dielectric constant and large puncture voltage.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art should understand that described embodiment helps to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment 1
(1) the 20g castor oil is warmed up to 80 ℃, vacuum treatment 15 hours, vacuum breaker then adds 1g tocopherol, 1g forulic acid and 1g Tea Polyphenols, 120 ℃ of again vacuum treatments 8 hours;
(2) with 2g heating paraffin to 70 ℃, make its thawing;
The paraffin of the thawing that the vegetable oil that (3) step (1) is obtained, step (2) obtain and 75g particle diameter are that the silicon powder of 0.2 ~ 1 μ m mixes, and obtain the capacitor inserts;
(4) inserts that step (3) is obtained is used for the perfusion of CBB65 type aluminum-casing capacitor.
Capacitor is as shown in table 1 with the inserts test result.
Embodiment 2
(1) the 40g rapeseed oil is warmed up to 120 ℃, vacuum treatment 8 hours, vacuum breaker then adds 2gBHA and 3g BHT, 80 ℃ of again vacuum treatments 16 hours;
(2) with 10g heating paraffin to 120 ℃, make its thawing;
The paraffin of the thawing that the vegetable oil that (3) step (1) is obtained, step (2) obtain and 45g particle diameter are that the talcum powder of 0.1 ~ 0.4 μ m mixes, and obtain the capacitor inserts;
(4) inserts that step (3) is obtained is used for the perfusion of CBB65 type aluminum-casing capacitor.
Capacitor is as shown in table 1 with the inserts test result.
Embodiment 3
(1) 30g corn oil is warmed up to 100 ℃, vacuum treatment 10 hours, vacuum breaker then adds the 0.5g sesamol, 110 ℃ of again vacuum treatments 9 hours;
(2) with 4g heating paraffin to 110 ℃, make its thawing;
The talcum powder that the paraffin of the thawing that the vegetable oil that (3) step (1) is obtained, step (2) obtain and 60g particle diameter are 0.5 ~ 0.7 μ m and 5.5g particle diameter are that the mica powder of 0.6 ~ 0.8 μ m mixes, and obtain the capacitor inserts;
(4) inserts that step (3) is obtained is used for the perfusion of CBB65 type aluminum-casing capacitor.
Capacitor is as shown in table 1 with the inserts test result.
Embodiment 4
(1) 15g soya-bean oil and 7g peanut oil are warmed up to 90 ℃, vacuum treatment 12 hours, vacuum breaker then adds 1gTBHQ, 75 ℃ of again vacuum treatments 15 hours;
(2) with 8g heating paraffin to 75 ℃, make its thawing;
The paraffin of the thawing that the vegetable oil that (3) step (1) is obtained, step (2) obtain and 69g particle diameter are that the silicon powder of 0.4 ~ 0.8 μ m mixes, and obtain the capacitor inserts;
(4) inserts that step (3) is obtained is used for the perfusion of CBB65 type aluminum-casing capacitor.
Comparative Examples
Take the disclosed alternating current wet-type capacitor saturant of CN 102290234A as Comparative Examples.
Capacitor is as shown in table 1 with the inserts test result.
Table 1
By the test result of table 1 as can be known, capacitor of the present invention has excellent electric property and physicochemical property with inserts.
Applicant's statement, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, does not mean that namely the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.The person of ordinary skill in the field should understand, any improvement in the present invention to the interpolation of the equivalence replacement of each raw material of product of the present invention and auxiliary element, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (10)
1. capacitor inserts comprises according to mass percent:
2. capacitor inserts as claimed in claim 1 is characterized in that, described capacitor comprises according to mass percent with inserts:
3. capacitor inserts as claimed in claim 1 or 2 is characterized in that, described capacitor comprises according to mass percent with inserts:
4. such as each described capacitor inserts of claim 1-3, it is characterized in that described capacitor is composed of the following components according to mass percent with inserts:
5. such as each described capacitor inserts of claim 1-4, it is characterized in that, described vegetable oil is a kind or at least 2 kinds combination in peanut oil, soya-bean oil, linseed oil, castor oil, rapeseed oil, corn oil, sunflower oil, olive oil, coconut oil, palm oil or the linseed oil, is particularly preferably castor oil;
Preferably, described filler is silicon powder and/or talcum powder;
Preferably, the particle diameter of described filler is below the 1 μ m, is particularly preferably below the 0.5 μ m;
Preferably, described vegetable oil antioxidant additive is repeatedly a kind or at least 2 kinds the combination among perfume, BHA, BHT or the TBHQ of tocopherol, sesamol, gossypol, forulic acid, Tea Polyphenols, ether.
6. the purposes such as each described capacitor usefulness inserts of claim 1-5 is characterized in that described capacitor can be used for the metallized polypropylene film capacitor with inserts.
7. purposes as claimed in claim 6 is characterized in that, described capacitor can be used for CBB65 type aluminum-casing capacitor with inserts.
8. one kind such as the preparation method of each described capacitor of claim 1-5 with inserts, may further comprise the steps:
(1) vegetable oil is warmed up to 80 ~ 120 ℃, vacuum treatment at least 8 hours, then vacuum breaker adds the vegetable oil antioxidant additive, and vacuum treatment is at least 8 hours again, and temperature maintains 80 ~ 120 ℃;
(2) with heating paraffin to 70 ~ 120 ℃, make its thawing;
The paraffin of the thawing that the vegetable oil that (3) step (1) is obtained, step (2) obtain and filler mix, and obtain the capacitor inserts.
9. method as claimed in claim 8 is characterized in that, step (1) and step (2) order are interchangeable, or carry out simultaneously;
Preferably, the described vacuum treatment first time of step (1) temperature is 90 ~ 110 ℃, is particularly preferably 100 ℃;
Preferably, step (1) the described first time of vacuum processing time is 10 ~ 15 hours, is particularly preferably 12 hours;
Preferably, the described vacuum treatment second time of step (1) temperature is 90 ~ 110 ℃, is particularly preferably 100 ℃;
Preferably, step (1) the described second time of vacuum processing time is 10 ~ 15 hours, is particularly preferably 12 hours.
10. method as claimed in claim 8 or 9 is characterized in that the described melted paraffin wax temperature of step (2) is 75 ~ 100 ℃, is particularly preferably 80 ℃;
Preferably, mix on the described limit that is mixed in the mixture of paraffin that the limit is added to filler the thawing that vegetable oil that step (1) obtains and step (2) obtain of step (3);
Preferably, the described mixing temperature of step (3) is 70 ~ 120 ℃, more preferably 75 ~ 100 ℃, is particularly preferably 80 ℃.
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| CN201210531665.6A CN103035405B (en) | 2012-12-11 | 2012-12-11 | A kind of capacitor inserts and preparation method thereof |
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| CN201210531665.6A CN103035405B (en) | 2012-12-11 | 2012-12-11 | A kind of capacitor inserts and preparation method thereof |
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| CN103035405B CN103035405B (en) | 2016-08-03 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943359A (en) * | 2014-04-22 | 2014-07-23 | 无锡宏广电容器有限公司 | Composite impregnant capable of substantially prolonging service life of metallic film capacitor and preparation method thereof |
| CN104086867A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for high-wear-resistant capacitor film and preparation method of special filler |
| CN104086873A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for heat-resistant aging-resistant capacitor films and preparation method thereof |
| CN104086866A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for high-strength anti-aging capacitor thin films and preparation method thereof |
| CN104086862A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for anti-aging capacitor film and preparation method of special filler |
| CN104086872A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special-purpose filler for anti-impact wear-resisting capacitor film and preparation method thereof |
| CN104086869A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for reinforced toughened capacitor films and preparation method thereof |
| CN104086870A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for weather-resistant capacitor film and preparation method of special filler |
| CN104086868A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for corrosion-resistant capacitor film and preparation method of special filler |
| CN104505258A (en) * | 2014-12-22 | 2015-04-08 | 安徽赛福电子有限公司 | Oil-type direct current filter capacitor |
| CN106571228A (en) * | 2016-10-26 | 2017-04-19 | 安徽飞达电气科技有限公司 | Long life capacitor impregnating agent |
| CN106571250A (en) * | 2016-10-26 | 2017-04-19 | 安徽飞达电气科技有限公司 | Plant oil mixed impregnating agent used for capacitor |
| CN106571227A (en) * | 2016-10-26 | 2017-04-19 | 安徽飞达电气科技有限公司 | High performance capacitor impregnating agent |
| CN106653406A (en) * | 2016-10-26 | 2017-05-10 | 安徽飞达电气科技有限公司 | Film capacitor impregnant |
| CN110283465A (en) * | 2018-03-19 | 2019-09-27 | Abb瑞士股份有限公司 | The capacitor of insulation composition with display thermal reversibility oil to gel conversion |
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| JPH0335513A (en) * | 1989-07-03 | 1991-02-15 | Shizuki Denki Seisakusho:Kk | Oil-immersed metallized film capacitor |
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| CN103943359A (en) * | 2014-04-22 | 2014-07-23 | 无锡宏广电容器有限公司 | Composite impregnant capable of substantially prolonging service life of metallic film capacitor and preparation method thereof |
| CN103943359B (en) * | 2014-04-22 | 2017-04-05 | 无锡宏广电容器有限公司 | It is a kind of to improve the compound impregnating agent in metallic film capacitor life-span and preparation method thereof |
| CN104086872A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special-purpose filler for anti-impact wear-resisting capacitor film and preparation method thereof |
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| CN104086873A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for heat-resistant aging-resistant capacitor films and preparation method thereof |
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| CN104086870A (en) * | 2014-07-01 | 2014-10-08 | 安徽江威精密制造有限公司 | Special filler for weather-resistant capacitor film and preparation method of special filler |
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| CN104505258A (en) * | 2014-12-22 | 2015-04-08 | 安徽赛福电子有限公司 | Oil-type direct current filter capacitor |
| CN106571228A (en) * | 2016-10-26 | 2017-04-19 | 安徽飞达电气科技有限公司 | Long life capacitor impregnating agent |
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| CN106653406B (en) * | 2016-10-26 | 2018-06-01 | 安徽飞达电气科技有限公司 | A kind of thin film capacitor impregnating agent |
| CN110283465A (en) * | 2018-03-19 | 2019-09-27 | Abb瑞士股份有限公司 | The capacitor of insulation composition with display thermal reversibility oil to gel conversion |
| US11657973B2 (en) | 2018-03-19 | 2023-05-23 | Hitachi Energy Switzerland Ag | Capacitor with insulation composition showing thermo-reversible oil-to-gel-transition |
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| CN103035405B (en) | 2016-08-03 |
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