CN103035405B - A kind of capacitor inserts and preparation method thereof - Google Patents
A kind of capacitor inserts and preparation method thereof Download PDFInfo
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- CN103035405B CN103035405B CN201210531665.6A CN201210531665A CN103035405B CN 103035405 B CN103035405 B CN 103035405B CN 201210531665 A CN201210531665 A CN 201210531665A CN 103035405 B CN103035405 B CN 103035405B
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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
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- 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
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Abstract
The present invention relates to a kind of capacitor inserts, include according to mass percent: the vegetable oil of 20% ~ 40%, the paraffin of 2% ~ 10%, the filler of 45% ~ 75% and 0.5% ~ 5% vegetable oil antioxidant additive.The preparation method of described capacitor inserts, comprises the following steps: vegetable oil is warmed up to 80 ~ 120 DEG C, application of vacuum at least 8 hours, then vacuum breaker, adds vegetable oil antioxidant additive, again application of vacuum at least 8 hours, and temperature maintains 80 ~ 120 DEG C；By heating paraffin to 70 ~ 120 DEG C so that it is melt；Vegetable oil after heat treatment, the paraffin of thawing and filler are mixed, obtains capacitor inserts.Described capacitor inserts electric property and physicochemical property.
Description
Technical field
The present invention relates to capacitor area, in particular it relates to a kind of capacitor inserts and preparation method thereof.
Background technology
Metal plastic membrane capacitance includes terylene and Merlon metallized capacitor, uses the history of more than 20 year in DC circuit.
Replace paper foil construction with metallized polypropylene, the size of capacitor can be reduced and improve its performance.This kind of capacitor generally paper foil construction left and right half as large corresponding to ratio, and its dielectric loss is the least, can eliminate thermal failure phenomenon common in paper foil construction, it is also possible to save energy.
CBB65 type capacitor is a kind of metallized polypropylene film motor running electric capacity, and it uses metallized polypropylene film to be medium, utilizes high-speed winder closely to roll, and aluminum hull encapsulation forms, and is a kind of negative temperature coefficient polarity free capacitor.
CBB65 type capacitor is mainly used in compressor of air conditioner, ac motor, it is in process of production, need between housing and fuse, fill a kind of material, reach to completely cut off air and the effect of heat radiation, traditional way is the most single filling plant oil or mineral oil, or the mode of wax oil mixing.
CN102290234A discloses a kind of alternating current wet-type capacitor saturant, comprises mineral oil and the hydrated magnesium silicate micropowder such as the vegetable oil such as Oleum Ricini, salad oil or methyl-silicone oil, polymethylphenyl siloxane fluid, PO oil.
CN102496460A discloses a kind of metallized polypropylene film capacitor, which employs polyisobutylene impregnating agent.
Japan Patent JP03035513 introduces and uses polybutene-alkylbenzene-cottonseed oil mixture embedding.
United States Patent (USP) US6,280,659 vegetable oil embedding capacitor.
But electrical property (such as resistivity, dielectric constant) and the physicochemical property (dispel the heat, completely cut off air) of inserts used all can not meet needs in prior art.
Summary of the invention
For the deficiencies in the prior art, an object of the present invention is to provide a kind of capacitor inserts.Described capacitor inserts i.e. capacitor impregnating agent, it can completely cut off air, heat radiation, can improve the electrical property of capacitor, and can increase weight.
Described capacitor inserts includes according to mass percent:
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 inserts includes according to mass percent:
Preferably, described capacitor inserts includes according to mass percent:
Particularly preferably, described capacitor inserts is composed of the following components according to mass percent:
Preferably, described vegetable oil is a kind in Oleum Arachidis hypogaeae semen, Oleum Glycines, oleum lini, Oleum Ricini, Oleum Brassicae campestris, Semen Maydis oil, Oleum Helianthi, olive oil, Oleum Cocois, Petiolus Trachycarpi oil or oleum lini or the combination of at least 2 kinds, particularly preferably Oleum Ricini.
Preferably, described filler is silicon powder and/or Pulvis Talci；Described silicon powder is by natural quartz (SiO2) or vitreous silica (natural quartz amorphous Si O after high-temperature fusion, cooling2) through the micropowder of the multiple tracks processes such as broken, ball milling (or vibration, airflow milling), flotation, pickling purification, high purity water process.Silicon powder is a kind of Inorganic Non-metallic Materials nontoxic, tasteless, free of contamination, the excellent performance such as possess that temperature tolerance is good, acid-alkali-corrosive-resisting, poor thermal conductivity, high insulation, low bulk, stable chemical performance, hardness are big, one of ordinary skill in the art can prepare by commercially available acquisition or according to prior art/new technique；Described Pulvis Talci main component is Talcum, and Talcum main component is the magnesium silicate that Talcum is aqueous, and molecular formula is Mg3[Si4O10](OH)2Have that lubricity, anti-glutinous, fluidizer, fire resistance, acid-resisting, insulating properties, fusing point height, chemical torpescence, covering power be good, softness, good luster, the absorption affinity excellent Wuli-Shili-Renli system approach such as by force, one of ordinary skill in the art can prepare by commercially available acquisition or according to prior art/new technique.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 1 μm, such as 0.99 μm, 0.98 μm, 0.97 μm, 0.95 μm, 0.9 μm, 0.8 μm, 0.7 μm, 0.6 μm, 0.51 μm, 0.49 μm, 0.4 μm, 0.3 μm, 0.2 μm, 0.1 μm, 0.05 μm etc., below particularly preferably 0.5 μm.
Described paraffin is also known as crystalline wax, it is common that white, the waxy solid of colorless and odorless, dissolves at 47 DEG C ~ 64 DEG C, density about 0.9g/cm3.It 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, will be high than the most of materials in addition to some plastics (especially Teflon).Paraffin is also good heat accumulating, and its specific heat capacity is 2.14 ~ 2.9J g-1 K-1, heat of fusion is 200 ~ 220J g-1。
nullDescribed vegetable oil antioxidant additive includes crude vegetal antioxidant additive and artificial plant oil antioxidant additive，Preferably，Described vegetable oil antioxidant additive is tocopherol、Sesamol、Gossypol、Ferulic acid、Tea polyphenols、Ether repeatedly perfume、BHA(butylation is through base mattress perfume (or spice) ether)、BHT(butylation is through base toluene) or TBHQ(tert-butyl hydroquinone) in a kind or the combination of at least 2 kinds，The typical but non-limiting example of described combination includes: tocopherol and the combination of sesamol，Gossypol and the combination of ferulic acid，Tea polyphenols、The most fragrant combination with BHA of ether，BHA、The combination of BHT and TBHQ，Tocopherol、Sesamol、Gossypol and the combination of ferulic acid，Gossypol、Ferulic acid、The combination of tea polyphenols and ether repeatedly perfume，Tea polyphenols、Ether repeatedly perfume、BHA、The combination of BHT and TBHQ，Sesamol、Gossypol、Ferulic acid、Tea polyphenols、The most fragrant combination with BHA of ether，Gossypol、Ferulic acid、Tea polyphenols、Ether repeatedly perfume、BHA、The combination etc. of BHT and TBHQ.
Described capacitor inserts also can contain other materials, such as mineral oil (such as methyl-silicone oil, polymethylphenyl siloxane fluid, PO oil etc.), hydrated magnesium silicate micropowder, benzyl toluene or diarylethane etc..
An object of the present invention is to provide the purposes of a kind of described capacitor inserts.
Described capacitor inserts can be used for metallized polypropylene film capacitor, particularly preferred for CBB65 type aluminum-casing capacitor.
An object of the present invention is to provide the preparation method of a kind of described capacitor inserts.
The preparation method of described capacitor inserts comprises the following steps:
(1) vegetable oil is warmed up to 80 ~ 120 DEG C, application of vacuum at least 8 hours, then vacuum breaker, add vegetable oil antioxidant additive, again application of vacuum at least 8 hours, temperature maintains 80 ~ 120 DEG C；
(2) by heating paraffin to 70 ~ 120 DEG C so that it is melt；
(3) paraffin of the thawing that the vegetable oil that step (1) obtained, step (2) obtain and filler mixing, obtain capacitor inserts.
Preferably, step (1) application of vacuum of described first time temperature is 90 ~ 110 DEG C, particularly preferably 100 DEG C.
Preferably, step (1) described first time vacuum processing time is 10 ~ 15 hours, particularly preferably 12 hours.
Preferably, step (1) described second time application of vacuum temperature is 90 ~ 110 DEG C, particularly preferably 100 DEG C.
Preferably, step (1) described second time vacuum processing time is 10 ~ 15 hours, particularly preferably 12 hours.
Preferably, step (2) described melted paraffin wax temperature is 75 ~ 100 DEG C, particularly preferably 80 DEG C.
Preferably, limit mixing in the mixture of the paraffin being mixed into the thawing that filler is added the vegetable oil that obtains to step (1) by limit and step (2) obtains described in step (3).
Preferably, step (3) described mixing temperature is 70 ~ 120 DEG C, more preferably 75 ~ 100 DEG C, particularly preferably 80 DEG C.
If possibly together with other material in capacitor inserts of the present invention, then other material described is simultaneously introduced in step (1) with vegetable oil antioxidant additive.
Vacuum finger pressure of the present invention is by force less than the state of a normal atmosphere, and such as gauge pressure is-0.1MPa ,-0.2MPa ,-1MPa etc..
It will be understood by those skilled in the art that the order of step (1) and step (2) can be exchanged, or carry out simultaneously, all in the scope that claims of the present invention is claimed.
The capacitor inserts each component mix homogeneously using the method for the invention to prepare, therefore has the character of excellence, the biggest dielectric constant, big breakdown voltage, big resistivity etc..
Compared with prior art, capacitor inserts of the present invention has the advantage that
(1) raw material is common, and cost is relatively low；
(2) production technology is simple, it is easy to large-scale application；
(3) there is the physicochemical property of excellence, it is possible to effectively completely cut off air, and dispel the heat, simultaneously stable chemical nature, be not easily decomposed；
(4) there is the electric property of excellence, there is big dielectric constant and big breakdown voltage.
Detailed description of the invention
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art, it will be clearly understood that the only help of described embodiment understands the present invention, are not construed as the concrete restriction to the present invention.
Embodiment 1
(1) 20g Oleum Ricini is warmed up to 80 DEG C, application of vacuum 15 hours, then vacuum breaker, add 1g tocopherol, 1g ferulic acid and 1g tea polyphenols, 120 DEG C of application of vacuum 8 hours again；
(2) by 2g heating paraffin to 70 DEG C so that it is melt；
(3) paraffin of the thawing that the vegetable oil that step (1) obtained, step (2) obtain and the silicon powder mixing that 75g particle diameter is 0.2 ~ 1 μm, obtain capacitor inserts；
(4) inserts step (3) obtained is for the perfusion of CBB65 type aluminum-casing capacitor.
Capacitor inserts test result is as shown in table 1.
Embodiment 2
(1) 40g Oleum Brassicae campestris is warmed up to 120 DEG C, application of vacuum 8 hours, then vacuum breaker, add 2gBHA and 3gBHT, 80 DEG C of application of vacuum 16 hours again；
(2) by 10g heating paraffin to 120 DEG C so that it is melt；
(3) paraffin of the thawing that the vegetable oil that step (1) obtained, step (2) obtain and the Pulvis Talci mixing that 45g particle diameter is 0.1 ~ 0.4 μm, obtain capacitor inserts；
(4) inserts step (3) obtained is for the perfusion of CBB65 type aluminum-casing capacitor.
Capacitor inserts test result is as shown in table 1.
Embodiment 3
(1) 30g Semen Maydis oil is warmed up to 100 DEG C, application of vacuum 10 hours, then vacuum breaker, add 0.5g sesamol, 110 DEG C of application of vacuum 9 hours again；
(2) by 4g heating paraffin to 110 DEG C so that it is melt；
(3) paraffin of the thawing that the vegetable oil that step (1) obtained, step (2) obtain and Pulvis Talci that 60g particle diameter is 0.5 ~ 0.7 μm and the mica powder mixing that 5.5g particle diameter is 0.6 ~ 0.8 μm, obtain capacitor inserts；
(4) inserts step (3) obtained is for the perfusion of CBB65 type aluminum-casing capacitor.
Capacitor inserts test result is as shown in table 1.
Embodiment 4
(1) 15g Oleum Glycines and 7g Oleum Arachidis hypogaeae semen are warmed up to 90 DEG C, application of vacuum 12 hours, then vacuum breaker, add 1gTBHQ, 75 DEG C of application of vacuum 15 hours again；
(2) by 8g heating paraffin to 75 DEG C so that it is melt；
(3) paraffin of the thawing that the vegetable oil that step (1) obtained, step (2) obtain and the silicon powder mixing that 69g particle diameter is 0.4 ~ 0.8 μm, obtain capacitor inserts；
(4) inserts step (3) obtained is for the perfusion of CBB65 type aluminum-casing capacitor.
Comparative example
With alternating current wet-type capacitor saturant disclosed in CN102290234A as comparative example.
Capacitor inserts test result is as shown in table 1.
Table 1
From the test result of table 1, capacitor inserts of the present invention has electric property and the physicochemical property of excellence.
Applicant states, the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment, but the invention is not limited in above-mentioned detailed process equipment and technological process, i.e. do not mean that the present invention has to rely on above-mentioned detailed process equipment and technological process could be implemented.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, and the equivalence of raw material each to product of the present invention is replaced and the interpolation of auxiliary element, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (25)
1. a capacitor inserts, includes according to mass percent:
Described vegetable oil is a kind in Oleum Arachidis hypogaeae semen, Oleum Glycines, oleum lini, Oleum Ricini, Oleum Brassicae campestris, Semen Maydis oil, Oleum Helianthi, olive oil, Oleum Cocois, Petiolus Trachycarpi oil or oleum lini or the combination of at least 2 kinds；
Described filler is silicon powder and/or Pulvis Talci；
Described vegetable oil antioxidant additive is a kind or the combination of at least 2 kinds in tocopherol, sesamol, gossypol, ferulic acid, tea polyphenols, ether repeatedly perfume, BHA, BHT or TBHQ.
2. capacitor inserts as claimed in claim 1, it is characterised in that described capacitor inserts includes according to mass percent:
3. capacitor inserts as claimed in claim 1 or 2, it is characterised in that described capacitor inserts includes according to mass percent:
4. capacitor inserts as claimed in claim 1, it is characterised in that described capacitor inserts is composed of the following components according to mass percent:
5. capacitor inserts as claimed in claim 1, it is characterised in that described vegetable oil is Oleum Ricini.
6. capacitor inserts as claimed in claim 1, it is characterised in that the particle diameter of described filler is below 1 μm.
7. capacitor inserts as claimed in claim 6, it is characterised in that the particle diameter of described filler is below 0.5 μm.
8. the purposes of the capacitor inserts as described in any one of claim 1-7, it is characterised in that described capacitor inserts can be used for metallized polypropylene film capacitor.
9. purposes as claimed in claim 8, it is characterised in that described capacitor inserts can be used for CBB65 type aluminum-casing capacitor.
10. a preparation method for the capacitor inserts as described in any one of claim 1-7, comprises the following steps:
(1) vegetable oil is warmed up to 80～120 DEG C, application of vacuum at least 8 hours, then vacuum breaker, add vegetable oil antioxidant additive, again application of vacuum at least 8 hours, temperature maintains 80～120 DEG C；
(2) by heating paraffin to 70～120 DEG C so that it is melt；
(3) paraffin of the thawing that the vegetable oil that step (1) obtained, step (2) obtain and filler mixing, obtain capacitor inserts.
11. methods as claimed in claim 10, it is characterised in that step (1) and step (2) are the most interchangeable, or carry out simultaneously.
12. methods as claimed in claim 10, it is characterised in that step (1) described application of vacuum temperature is 90～110 DEG C.
13. methods as claimed in claim 12, it is characterised in that step (1) described application of vacuum temperature is 100 DEG C.
14. methods as claimed in claim 10, it is characterised in that step (1) described vacuum processing time is 10～15 hours.
15. methods as claimed in claim 14, it is characterised in that step (1) described vacuum processing time is 12 hours.
16. methods as claimed in claim 10, it is characterised in that described in step (1), application of vacuum temperature again is 90～110 DEG C.
17. methods as claimed in claim 16, it is characterised in that described in step (1), application of vacuum temperature again is 100 DEG C.
18. methods as claimed in claim 10, it is characterised in that described in step (1), vacuum processing time is 10～15 hours again.
19. methods as claimed in claim 18, it is characterised in that described in step (1), vacuum processing time is 12 hours again.
20. methods as claimed in claim 10, it is characterised in that step (2) described melted paraffin wax temperature is 75～100 DEG C.
21. methods as claimed in claim 20, it is characterised in that step (2) described melted paraffin wax temperature is 80 DEG C.
22. methods as claimed in claim 10, it is characterised in that limit mixing in the mixture of the paraffin being mixed into the thawing that filler is added the vegetable oil that obtains to step (1) by limit and step (2) obtains described in step (3).
23. methods as claimed in claim 10, it is characterised in that step (3) described mixing temperature is 70～120 DEG C.
24. methods as claimed in claim 23, it is characterised in that step (3) described mixing temperature is 75～100 DEG C.
25. methods as claimed in claim 24, it is characterised in that step (3) described mixing temperature is 80 DEG C.
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| CN103035405B true CN103035405B (en) | 2016-08-03 |
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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 |
| CN106571250B (en) * | 2016-10-26 | 2018-06-05 | 安徽飞达电气科技有限公司 | A kind of preparation method of mixed vegetable oil impregnating agent 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 |
| 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 |
| 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 |
| CN110283465B (en) * | 2018-03-19 | 2022-10-14 | 日立能源瑞士股份公司 | Capacitor with insulating composition exhibiting a thermoreversible oil to gel transition |
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| US6280659B1 (en) * | 1996-03-01 | 2001-08-28 | David W. Sundin | Vegetable seed oil insulating fluid |
| CN102290234A (en) * | 2011-06-03 | 2011-12-21 | 安徽赛福电子有限公司 | Alternating current wet-type capacitor saturant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335513A (en) * | 1989-07-03 | 1991-02-15 | Shizuki Denki Seisakusho:Kk | Oil-immersed metallized film capacitor |
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|---|---|---|---|---|
| US6280659B1 (en) * | 1996-03-01 | 2001-08-28 | David W. Sundin | Vegetable seed oil insulating fluid |
| CN102290234A (en) * | 2011-06-03 | 2011-12-21 | 安徽赛福电子有限公司 | Alternating current wet-type capacitor saturant |
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