CN2098725U - Capacitor with low inductance - Google Patents
Capacitor with low inductance Download PDFInfo
- Publication number
- CN2098725U CN2098725U CN 91223044 CN91223044U CN2098725U CN 2098725 U CN2098725 U CN 2098725U CN 91223044 CN91223044 CN 91223044 CN 91223044 U CN91223044 U CN 91223044U CN 2098725 U CN2098725 U CN 2098725U
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- CN
- China
- Prior art keywords
- capacitor
- core
- welded
- low inductance
- sealant
- 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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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model relates to a capacitor with low inductance. A polypropylene or polyester film is taken as a medium, a metalized film or an aluminum foil taken as a pole plate becomes a capacitor core via curling and metal spraying, and the capacitor core is coated with an insulation layer. Two ends of the core welded with copper sheets and axial educed pole screw nuts or screw bolts are arranged in an insulating casing, and also two ends of the core are sealed by epoxy resin cure or welded with metal covers filled with impregnant for seal. Two ends of the core respectively become a dry capacitor and an impregnating capacitor. The capacitor with low inductance is suitable for matching with turn-off thyristors in an operating state with heavy current and other electric lines. The capacitor has low inductance, few losses, strong electric current resistance, self-healing ability, high reliability and easy installation.
Description
The utility model relates to essential electronic element.
Capacitor is the basic components and parts in the circuit structure, the capacitor of existing structure, and it draws line length, equivalent series resistance is big, so inductance is big, should not be used for the occasion that the requirement electric current is big, inductance is little, particularly be difficult to supporting use, and inconvenience is installed with turn-off thyristor GTO.
The purpose of this utility model be to overcome the deficiencies in the prior art and provide a kind of and have that inductance is low, withstanding current capability is strong, two ends can be with connector shaft to the low-inductive capacitor easy for installation of drawing.
The purpose of this utility model is achieved in that reels the back metal spraying as the fuse outsourcing insulation with medium with pole plate, copper sheet is gone up in the welding of fuse two ends, the connector extraction pole that welding can axially be drawn on copper sheet, and the insulation shell of packing into again, two ends seal with sealant again.
Press the low-inductive capacitor of the utility model design, have that inductance is low, loss is little, withstanding current capability is strong, and have self-healing ability, the reliability height, available connector of two ends such as nut, bolt are drawn, and be easy for installation.
Description of drawings.
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is the utility model embodiment 2 structural representations.
Below will be described in further detail according to above-mentioned accompanying drawing embodiment.
Low-inductive capacitor (referring to Fig. 1-2) with polypropylene screen or polyester film as medium, with thin film metallized or aluminium foil as pole plate, medium and pole plate are handled through metal spraying (tin or zinc or aluminium) behind volume and are wrapped up as capacitor body (3) and with insulating barrier (4), fuse (3) two ends are welded with copper sheet (2), be welded with on the copper sheet (2) can install and fix usefulness the connector of axially drawing as extraction pole (1), for easy to loading and unloading, this extraction pole (1) is selected nut or bolt for use.For ease of clamping, be processed with flat department on the round nut, or with square nut, six-sided nut etc.Then said structure is packed in plastics or the porcelain housing (5), seal with sealant at two ends at last, the sealing layer can be that embodiment 1(sees Fig. 1) epoxy resin cure sealing (6), become dry-type capacitor, also can be that embodiment 2(sees Fig. 2) crown cap (7) and extraction pole (1) welded seal, fill with the impregnating agent such as castor oil, rapeseed oil, paraffin (8) in the crown cap (7), become oil capacitor.
The utility model contour structure size adopts D:H, makes the metal spraying area enough big.Axially lead-out wire is short, to reach the purpose that reduces inductance value to the full extent, is suitable for big current work state, and it designs for the supporting use of turn-off thyristor (GTO), also can be used for as in other electric wirings such as gating circuit, attraction protective circuit.Its specification limit can reach:
Capacitance 1～400 μ f
Proof voltage 100～5000VDC
Inductance value 10
1The nH(order of magnitude)
Claims (8)
1, a kind of low-inductive capacitor, reel the back metal spraying as fuse (3) by medium and pole plate, outsourcing insulation (4), the housing (5) of packing into, two ends seal with sealant, it is characterized in that fuse (3) two ends are welded with copper sheet (2), are welded with the extraction pole of axially drawing (1) that can install and fix usefulness on the copper sheet (2).
2, capacitor as claimed in claim 1 is characterized in that described dielectric material is polypropylene film or polyester film.
3, capacitor as claimed in claim 1 is characterized in that described plate material is thin film metallized or aluminium foil.
4, capacitor as claimed in claim 1 is characterized in that described extraction pole (1) can be that the connector nut can also be a bolt.
5, capacitor as claimed in claim 1, the sealant that it is characterized in that two ends are epoxy resin cure sealant (6).
6, capacitor as claimed in claim 1, the sealant that it is characterized in that two ends are crown cap (7) welded seals and fill with impregnating agent (8).
7, capacitor as claimed in claim 6 is characterized in that described impregnating agent (8) can be castor oil or rapeseed oil or paraffin or the like.
8, capacitor as claimed in claim 1 is characterized in that the contour structure size D＞H of capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91223044 CN2098725U (en) | 1991-08-09 | 1991-08-09 | Capacitor with low inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91223044 CN2098725U (en) | 1991-08-09 | 1991-08-09 | Capacitor with low inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2098725U true CN2098725U (en) | 1992-03-11 |
Family
ID=4929819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91223044 Withdrawn CN2098725U (en) | 1991-08-09 | 1991-08-09 | Capacitor with low inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2098725U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683024A (en) * | 2012-04-26 | 2012-09-19 | 北京科佳信电容器研究所 | Capacitor unit |
| CN102969160A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified bentonite and preparation method thereof |
| CN102969146A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified bauxite and preparation method thereof |
| CN102969159A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified vermiculite powder and preparation method thereof |
| CN102969152A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified calcium carbonate and preparation method thereof |
| CN104361993A (en) * | 2014-12-01 | 2015-02-18 | 上海田伏电子科技有限公司 | Oil-immersed copper foil capacitor and manufacturing technology thereof |
| CN102969146B (en) * | 2012-10-31 | 2016-11-30 | 张力 | A kind of capacitor impregnant containing modified aluminium Alumina and preparation method thereof |
-
1991
- 1991-08-09 CN CN 91223044 patent/CN2098725U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683024A (en) * | 2012-04-26 | 2012-09-19 | 北京科佳信电容器研究所 | Capacitor unit |
| CN102683024B (en) * | 2012-04-26 | 2014-07-30 | 北京科佳信电容器研究所 | Capacitor unit |
| CN102969160A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified bentonite and preparation method thereof |
| CN102969146A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified bauxite and preparation method thereof |
| CN102969159A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified vermiculite powder and preparation method thereof |
| CN102969152A (en) * | 2012-10-31 | 2013-03-13 | 安徽拓普森电池有限责任公司 | Capacitor impregnant containing modified calcium carbonate and preparation method thereof |
| CN102969159B (en) * | 2012-10-31 | 2016-04-13 | 安徽拓普森电池有限责任公司 | A kind of capacitor impregnant containing PERFORMANCE OF MODIFIED VERMICULITE powder and preparation method thereof |
| CN102969146B (en) * | 2012-10-31 | 2016-11-30 | 张力 | A kind of capacitor impregnant containing modified aluminium Alumina and preparation method thereof |
| CN104361993A (en) * | 2014-12-01 | 2015-02-18 | 上海田伏电子科技有限公司 | Oil-immersed copper foil capacitor and manufacturing technology thereof |
| CN104361993B (en) * | 2014-12-01 | 2018-08-24 | 王沛 | A kind of oil immersion Copper Foil capacitor and its manufacture craft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |