CN202217588U - Power electronic capacitor - Google Patents
Power electronic capacitor Download PDFInfo
- Publication number
- CN202217588U CN202217588U CN2011203845798U CN201120384579U CN202217588U CN 202217588 U CN202217588 U CN 202217588U CN 2011203845798 U CN2011203845798 U CN 2011203845798U CN 201120384579 U CN201120384579 U CN 201120384579U CN 202217588 U CN202217588 U CN 202217588U
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- CN
- China
- Prior art keywords
- power electronic
- capacitor
- electronic capacitor
- electric capacity
- electric
- 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.)
- Expired - Lifetime
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- 239000003990 capacitor Substances 0.000 title claims abstract description 60
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 8
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims description 11
- 239000000178 monomer Substances 0.000 claims description 9
- 238000005538 encapsulation Methods 0.000 claims description 8
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 238000003490 calendering Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 238000009422 external insulation Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims description 3
- 238000009490 roller compaction Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Abstract
The utility model relates to a novel power electronic capacitor which comprises a high-zinc-aluminium composite medium, a ceramic thin film and a silver alloy electrode, and is molded by high-temperature rolling so as to form an integral structure; the electric-field distribution in the novel power electronic capacitor is even, and the distribution parameter is small; simultaneously, high-temperature epoxy resin is adopted for packaging the novel power electronic capacitor, so that the whole voltage-resistant insulating property is improved; and by being detected by a test, the novel power electronic capacitor completely meets the requirements of all indexes of electric power application, thus having a wide application prospect.
Description
Technical field
The present invention is the high-voltage capacitor of a kind of 6KV of being applied to and above electric pressure power circuit and equipment.Along with the fast development of intelligent electrical network, country requires increasingly highly to power equipment, and it is big that the specific requirement on capacitor is exactly that capacitance is wanted; Volume is little, and installation and maintenance will make things convenient for, and it is high that withstand voltage properties and dielectric strength are wanted; Temperature characterisitic will be got well, and convenient putting with the electric intelligent makeup matched.
Background technology
The capacitor of power industry use at present all adopts the full film iron-clad of oil immersion capacitor group, and it is bulky, and operation maintenance is all very inconvenient with installation; And cost an arm and a leg, the processing consistency is poor, complex process; Can't produce in enormous quantities; Be difficult for being applied to electric intelligent makeup and put, therefore need technological innovation, carry out processing technology and improve and change above-mentioned defective; Thereby the quality that reaches capacitor is good, low, the very little purpose convenient for installation and maintenance of volume of self energy consumption, satisfies the requirement of electric intelligentization and low-carbon environment-friendly.
Summary of the invention
The weak point that the existing power capacitor that the objective of the invention is to set forth to above background technology is used in 6KV and above electric pressure field; And for satisfying the demand of the intelligent develop rapidly of electrical network; On dielectric material, electrode, structure and the manufacturing process of electric capacity, capacitor is carried out omnibearing innovation; To reach the purpose that substitutes conventional electric power electric capacity module fully; And on overall volume, weight and mounting means, remedy the weak point of conventional electric power electric capacity module, realize reducing the target of electric capacitor manufacturing cost and operation maintenance cost.
Technical scheme of the present invention is: a kind of power electronic capacitor, it adopts high zinc-aluminium complex media, ceramic membrane, silver alloy electrode to be overlapped into monolithic capacitor, in a plurality of electric capacity in superimposed back adopt string and in and structure.Interior string structure is according to the capacitances in series voltage divider principle, and string in a plurality of electric capacity is guaranteed capacitor long-play under industrial frequency AC 6KV and above voltage to guarantee electric capacity high voltage long-time steady operation.Interior and structure is to realize needed Da Rong value according to the principle that electric capacity parallel connection shunting, capacity superpose.It is bigger that electric capacity bears electric current, and current-carrying part designs by current density, thereby structurally must consider the capacitor body heat radiation; Because must require to carry out AC voltage withstand test according to the electric pressure of country or international standard regulation, short time inner capacitor two ends electrical potential difference is bigger, the applied electric field intensity of capacitor dielectric is also bigger, therefore must each electric capacity be accomplished that dividing potential drop is even.
Above-mentioned power electronic capacitor; It is further characterized in that it is a calendering forming, is through spreading the capacitor dielectric residual air to be removed, and guarantees not have the gap vacuum state; Prevent its gassing ionization in high voltage electric field, cause power electronic capacitor dielectric voltage withstand level to reduce;
Above-mentioned power electronic capacitor; It is further characterized in that its outside encapsulates with insulating material; Intermediate space is filled by high-temperature insulation epoxy resin, the little gap discharge phenomenon of avoiding electric capacity to make moist causing local arc, the discharge of shell local arc and link loose contact being produced;
Above-mentioned power electronic capacitor, it is further characterized in that outside with the insulating material encapsulation, intermediate space strengthens the spacing between power electronic capacitor the two poles of the earth by the filling of high-temperature insulation epoxy resin, improves surface discharge voltage.
Above-mentioned power electronic capacitor, its be further characterized in that its with the polarization ceramic membrane dustless staticize carry out closed assembly in the thermostatic chamber.
Above-mentioned power electronic capacitor, it places its core group and rolles over mould after being further characterized in that its production technology adopts vacuumize and vacuum impregnation that air gap is eliminated, and carries out the heating and pressurizing moulding.
Above-mentioned power electronic capacitor, it encapsulates after being further characterized in that its moulding again, adopts external insulation thickness to fill greater than the 5MM High temp. epoxy resins, avoids the external shell local arc discharge of electric capacity body surface, guarantees the electric capacity moisture resistance.
As a same reason, the invention also discloses a kind of manufacturing approach of power electronic capacitor, it is made up of high zinc-aluminium complex media, ceramic membrane and silver alloy electrode, through roller-compaction, and being integrally formed structure; Monomer electric capacity adopts high zinc-aluminium complex media, ceramic membrane and silver alloy electrode to be formed by stacking, and a plurality of monomer electric capacity are according to interior string, interior and structure formation high-voltage capacitor.
In this manufacturing approach, said calendering forming is through spreading the capacitor dielectric residual air to be removed, and guarantees not have the gap vacuum state; String, interior and structure are meant in said, and the monomer capacitances in series with the parallel connection again of monomer series-connected electric capacity, adopts equidistant structure during parallel connection then, guarantee each monomer electric capacity spatially axially, longitudinal pitch equates, forms an equipotentiality structure.
After adopting vacuumize and vacuum impregnation that air gap is eliminated, its core group is placed roll over mould again, carry out the heating and pressurizing moulding; Outside with the insulating material encapsulation, intermediate space is filled encapsulation by high-temperature insulation epoxy resin; When encapsulating again after the moulding, adopt external insulation thickness to fill encapsulation greater than the 5MM High temp. epoxy resins.The ceramic membrane of polarization is staticized in the thermostatic chamber dustless, carry out closed assembly; Ceramic membrane and high zinc-aluminium complex media are integrally formed.
Beneficial effect of the present invention is that above-mentioned power electronic capacitor can substitute conventional electric power electric capacity module fully; On overall volume, weight and mounting means, remedy the weak point of conventional electric power electric capacity; Realize the target of reduction electric capacitor manufacturing cost and operation maintenance cost low-carbon (LC), economy, and can put to cooperate with the electric intelligent makeup and improve the electrical network intelligent level.
Description of drawings
Fig. 1 is power electronic capacitor circuit theory diagrams of the present invention.
Fig. 2 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the preferred embodiments of the present invention are introduced as follows in detail.
Power electronic capacitor of the present invention, monolithic capacitor adopt high zinc-aluminium complex media, ceramic membrane, silver alloy electrode superimposed, string, interior and structure in a plurality of electric capacity in superimposed back adopt.Interior string structure be with in a plurality of electric capacity the string to guarantee electric capacity high voltage long-time steady operation, the applied electric field intensity of capacitor dielectric evenly distributes, electric capacity accomplishes that dividing potential drop is even.
Fig. 1 is with single capacitors in series, and each capacitor appearance value equates that internal electric field is even, and there is not sudden change in potential, owing to adopt calendering forming and various advanced technologies, does not have the space between electrode for capacitors and the medium, so capacitive field is revealed minimum.Series capacitors can improve the voltage withstand class of electronic capacitor, guarantees to satisfy the dielectric voltage withstand requirement.With single series capacitor parallel connection, each series capacitor appearance value equates that parallel connection increases the equivalent capacity capacity; With in satisfy using to the requirement of capacitance; Adopt equidistant structure during parallel connection, guarantee that each monolithic capacitor is spatially axial, longitudinal pitch equates, form an equipotentiality structure; Potential Distributing between the monomer is impartial, has reduced the electric discharge phenomena between distributed capacitance and the monomer to the full extent.
Fig. 2 power electronic capacitor structural representation of the present invention.Electrode and medium adopt calendering forming, through spreading the capacitor dielectric residual air are removed, and guarantee not have the gap vacuum state, prevent finished product gassing ionization in high voltage electric field; The silver alloy material of electrodes use; The electric conductivity of its high-quality and the low coefficient of expansion are guaranteed the temperature coefficient of electric capacity less than 15ppm/ ℃, and ceramic membrane medium dielectric coefficient is stable, the little one-shot forming technique that adopts simultaneously of the coefficient of expansion; Make the inner equipotential structure that forms an integral body of capacitor; Electric Field Distribution is even between the internal electrode medium, and electrical potential difference is impartial, reduces the distributed capacitance effect.The whole insulation thickness that adopts is filled encapsulation greater than the 5MM High temp. epoxy resins, avoids the electric capacity body surface to the discharge of shell local arc, guarantees the electric capacity moisture resistance.
Though the present invention with preferred embodiment openly as above; But embodiment and accompanying drawing are not to be used for limiting the present invention, anyly are familiar with this art, in spirit that does not break away from the present invention and scope; Can do various variations or retouching from working as, equally within the present invention's protection range.What therefore protection scope of the present invention should be defined with the application's claim protection range is as the criterion.
Claims (7)
1. power electronic capacitor, it is characterized in that: it is made up of high zinc-aluminium complex media, ceramic membrane and silver alloy electrode, through roller-compaction, being integrally formed structure; Monomer electric capacity adopts high zinc-aluminium complex media, ceramic membrane and silver alloy electrode superimposed, and a plurality of monomer electric capacity form interior string, interior and structure.
2. power electronic capacitor according to claim 1 is characterized in that: said calendering forming is through spreading the capacitor dielectric residual air to be removed, and guarantees not have the gap vacuum state.
3. power electronic capacitor according to claim 2 is characterized in that: after adopting vacuumize and vacuum impregnation that air gap is eliminated, its core group is placed roll over mould again, carry out the heating and pressurizing moulding.
4. according to claim 1,2 or 3 described power electronic capacitors, it is characterized in that: outside with the insulating material encapsulation, intermediate space is filled encapsulation by high-temperature insulation epoxy resin.
5. power electronic capacitor according to claim 4 is characterized in that: encapsulate after the moulding again, adopt external insulation thickness to fill encapsulation greater than the 5MM High temp. epoxy resins.
6. power electronic capacitor according to claim 1 is characterized in that: the ceramic membrane of polarization is staticized in the thermostatic chamber dustless, carry out closed assembly.
7. power electronic capacitor according to claim 1; It is characterized in that: string, interior and structure are meant in said; Single capacitors in series with single series capacitor parallel connection, adopts equidistant structure then during parallel connection; Guarantee that each monolithic capacitor is spatially axial, longitudinal pitch equates, form an equipotentiality structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203845798U CN202217588U (en) | 2011-10-11 | 2011-10-11 | Power electronic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203845798U CN202217588U (en) | 2011-10-11 | 2011-10-11 | Power electronic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202217588U true CN202217588U (en) | 2012-05-09 |
Family
ID=46016829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203845798U Expired - Lifetime CN202217588U (en) | 2011-10-11 | 2011-10-11 | Power electronic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202217588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627696A (en) * | 2020-06-17 | 2020-09-04 | 桂林理工大学 | Preparation process of gapless laminated film capacitor |
-
2011
- 2011-10-11 CN CN2011203845798U patent/CN202217588U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627696A (en) * | 2020-06-17 | 2020-09-04 | 桂林理工大学 | Preparation process of gapless laminated film capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING YINNUOWO ECONOMIC INFORMATION CONSULTING C Free format text: FORMER OWNER: JIANGSU TONGCHI AUTOMATIZATION SYSTEM CO., LTD. Effective date: 20120703 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210037 NANJING, JIANGSU PROVINCE TO: 210061 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120703 Address after: 210061 Nanjing hi tech Zone, Jiangsu hi tech Road, No. two, No. 7 Patentee after: Nanjing Yinnuowo Economic Information Consulting Co., Ltd. Address before: 6, 13C, 210037 International Plaza, 399 Central Road, Jiangsu, Nanjing Patentee before: Jiangsu Tongchi Automatization System Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Tongchi Automatization System Co., Ltd. Assignor: Nanjing Yinnuowo Economic Information Consulting Co., Ltd. Contract record no.: 2012320000923 Denomination of utility model: Oil-immersed water-cooled high-power electric and electronic capacitor Granted publication date: 20120509 License type: Exclusive License Record date: 20120731 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Tongchi Automatization System Co., Ltd. Assignor: Nanjing Yinnuowo Economic Information Consulting Co., Ltd. Contract record no.: 2012320000923 Denomination of utility model: Oil-immersed water-cooled high-power electric and electronic capacitor Granted publication date: 20120509 License type: Exclusive License Record date: 20120731 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu Tongchi Automatization System Co., Ltd. Assignor: Nanjing Yinnuowo Economic Information Consulting Co., Ltd. Contract record no.: 2012320000923 Date of cancellation: 20170308 |
|
| CP03 | Change of name, title or address |
Address after: High tech Zone Nanjing city Jiangsu province 210061 Liufang Road No. 8 Patentee after: Nanjing's Information Technology Development Co. Ltd. Address before: 210061 Nanjing hi tech Zone, Jiangsu hi tech Road, No. two, No. 7 Patentee before: Nanjing Yinnuowo Economic Information Consulting Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: STATE GRID NANRUI SANNENG ELECTRIC POWER INSTRUMENT (NANJING) CO., LTD. Assignor: Nanjing's Information Technology Development Co. Ltd. Contract record no.: 2017320000117 Denomination of utility model: Oil-immersed water-cooled high-power electric and electronic capacitor Granted publication date: 20120509 License type: Exclusive License Record date: 20170516 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180416 Address after: High tech Zone Nanjing city Jiangsu province 210061 Liufang Road No. 8 Patentee after: Nanjing Voight Information Technology Development Co., Ltd. Address before: High tech Zone Nanjing city Jiangsu province 210061 Liufang Road No. 8 Patentee before: Nanjing's Information Technology Development Co. Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |
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| CX01 | Expiry of patent term |