CN108039280B - Penetration type noninductive capacitor - Google Patents
Penetration type noninductive capacitor Download PDFInfo
- Publication number
- CN108039280B CN108039280B CN201810025159.7A CN201810025159A CN108039280B CN 108039280 B CN108039280 B CN 108039280B CN 201810025159 A CN201810025159 A CN 201810025159A CN 108039280 B CN108039280 B CN 108039280B
- Authority
- CN
- China
- Prior art keywords
- polar plate
- copper
- copper shaft
- shaft
- core
- 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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Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 30
- 230000035515 penetration Effects 0.000 title description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052802 copper Inorganic materials 0.000 claims abstract description 66
- 239000010949 copper Substances 0.000 claims abstract description 66
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 239000004593 Epoxy Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 8
- 238000005253 cladding Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/26—Folded capacitors
Abstract
The invention discloses a through-type noninductive capacitor, which comprises a stainless steel shell, wherein an insulating epoxy plate and a capacitor core are arranged in the stainless steel shell, the capacitor core is fixed on the insulating epoxy plate, epoxy resin filling materials are filled outside the capacitor core, the capacitor core comprises a metallized safety film, a first through-core copper shaft and a second through-core copper shaft, the metallized safety film is provided with a first parallel copper bar and a second parallel copper bar, the first parallel copper bar and the second parallel copper bar are respectively connected with a first polar plate and a second polar plate, and the first through-core copper shaft and the second through-core copper shaft penetrate through the metallized safety film; one end of the first through copper shaft penetrates through the second polar plate and is insulated from the second polar plate, and the other end of the first through copper shaft is connected with the first polar plate; one end of the second through copper shaft penetrates through the first polar plate and is insulated from the first polar plate, and the other end of the second through copper shaft is connected with the second polar plate. The invention adopts a threading shaft structure, which can reduce the inductance of the lead to the minimum and greatly improve the anti-interference capability of the device.
Description
Technical Field
The present invention relates to a capacitive filter, and more particularly, to a feedthrough non-inductive capacitor.
Background
The capacitor core is an energy storage element, and can realize bypass or absorption of interference signals by using charge and discharge of the capacitor core in a transient process.
However, the actual capacitive core cannot be purely capacitive, and it also contains a resistor and an inductor, and its equivalent circuit is shown in fig. 1.
Due to the various inductive effects in the actual capacitance, there is the highest effective frequency.
When the frequency of the interference signal exceeds fe, the capacitance core presents sensibility, and the overvoltage suppressing effect is obviously reduced. The operation overvoltage or spike pulse appearing in the power grid has the characteristics of high voltage rising speed, large amplitude and short pulse duration, and the frequency spectrum is distributed in a discrete manner in a wider frequency band range. Therefore, the conventional capacitor core is not ideal in suppressing such interference.
Disclosure of Invention
The invention provides a penetrating type noninductive capacitor for solving the defects in the prior art.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a through type noninductive electric capacity ware, includes the stainless steel shell, stainless steel shell both ends all are equipped with the outlet, be equipped with insulating epoxy board and electric capacity core in the stainless steel shell, the electric capacity core is fixed on insulating epoxy board, and electric capacity core outside is filled has epoxy filler, its characterized in that: the capacitor core comprises a metallized safety film, a first through copper shaft and a second through copper shaft, wherein the metallized safety film is provided with a first parallel copper bar and a second parallel copper bar, the first parallel copper bar is connected with a first polar plate, the second parallel copper bar is connected with a second polar plate, and the first through copper shaft and the second through copper shaft penetrate through the metallized safety film;
one end of the first through copper shaft penetrates through the second polar plate and is insulated from the second polar plate, and the other end of the first through copper shaft is connected with the first polar plate;
one end of the second through copper shaft penetrates through the first polar plate and is insulated from the first polar plate, and the other end of the second through copper shaft is connected with the second polar plate.
The first through copper shaft is insulated from the second pole plate through an insulating outer cladding on the first through copper shaft, and the second through copper shaft is insulated from the first pole plate through an insulating outer cladding on the second through copper shaft.
The first through copper shaft is connected with the first polar plate through a metal spraying layer, and the metal spraying layer is arranged on the inner side surface of the first polar plate; the second through copper shaft is connected with the second pole plate through a metal spraying layer, and the metal spraying layer is arranged on the inner side surface of the second pole plate.
The metallized security film uses a T-shaped security film.
Insulating edges are arranged on two sides of the T-shaped safety film.
And the T-shaped safety film is provided with a miniature fuse.
The miniature fuses on the T-shaped safety film are two pairs per square centimeter.
Compared with the prior art, the invention has the advantages that:
(1) The penetrating non-inductive large-capacitance filter device adopts a penetrating shaft structure, so that the inductance of a wire can be reduced to the minimum, and the anti-interference capability of the device is greatly improved.
(2) The metallized safety film adopts a non-inductive winding structure, so that the inductance of the capacitor core can be effectively reduced.
(3) The metallized safety film uses T-shaped safety film, each square centimeter of film is protected by two pairs of micro fuses, the fuse has very sensitive reaction, the damage and spreading of the electric weak point to the capacitor core are effectively prevented, the safety of the capacitor core is improved, and the service life of the capacitor core is prolonged.
Drawings
Fig. 1 is a circuit diagram of a conventional capacitor equivalent circuit.
Fig. 2 is a schematic structural view of the present invention.
Fig. 3 is a schematic structural view of a capacitor according to the present invention.
Fig. 4 is a schematic diagram of the internal structure of the capacitor in the present invention.
Fig. 5 is a schematic structural view of a T-shaped security film according to the present invention.
Detailed Description
The invention is further described in detail below with reference to examples.
As shown in fig. 1 to 4, a feedthrough non-inductance capacitor comprises a stainless steel housing 1, wherein both ends of the stainless steel housing 1 are respectively provided with an outlet 2, an insulating epoxy plate 3 and a capacitor core 4 are arranged in the stainless steel housing 1, the capacitor core 4 is fixed on the insulating epoxy plate 3, an epoxy resin filling material 5 is filled outside the capacitor core 4, the capacitor core 4 comprises a metallized safety film 4-1, a first feedthrough copper shaft 4-2 and a second feedthrough copper shaft 4-3, the metallized safety film 4-1 is provided with a first parallel copper bar 4-4 and a second parallel copper bar 4-5, the first parallel copper bar 4-4 is connected with a first polar plate 4-6, the second parallel copper bar 4-5 is connected with a second polar plate 4-7, and the first feedthrough copper shaft 4-2 and the second feedthrough copper shaft 4-3 penetrate through the metallized safety film 4-1;
one end of the first through copper shaft 4-2 passes through the second polar plate 4-7 and is insulated from the second polar plate 4-7, and the other end of the first through copper shaft is connected with the first polar plate 4-6;
one end of the second through copper shaft 4-3 penetrates through the first polar plate 4-6 and is insulated from the first polar plate 4-6, and the other end of the second through copper shaft is connected with the second polar plate 4-7.
The first through copper shaft 4-2 and the second pole plate 4-7 are insulated by an insulating outer cladding on the first through copper shaft 4-2, and the second through copper shaft 4-3 and the first pole plate 4-6 are insulated by an insulating outer cladding 4-8 on the second through copper shaft 4-3.
The first through copper shaft 4-2 is connected with the first polar plate 4-6 through a metal spraying layer 4-9, and the metal spraying layer 4-9 is arranged on the inner side surface of the first polar plate 4-6; the second through copper shaft 4-3 is connected with the second pole plate 4-7 through a metal spraying layer 4-9, and the metal spraying layer 4-9 is arranged on the inner side surface of the second pole plate 4-7.
As shown in fig. 3, 4 and 5, the metallized security films use T-shaped security films 4-10. Insulating edges 4-101 are arranged on two sides of the T-shaped safety film 4-10. The T-shaped safety film 4-10 is provided with a miniature fuse 4-102. The micro-fuses 4-102 on the T-shaped security film 4-10 are two pairs per square centimeter.
The foregoing detailed description is given by way of example only and is not to be construed as limiting the scope of the invention, as it is for the person skilled in the art to better understand the present patent; any equivalent alterations or modifications made in accordance with the spirit of the disclosure fall within the scope of the disclosure.
Claims (5)
1. The utility model provides a through type noninductive electric capacity ware, includes the stainless steel shell, stainless steel shell both ends all are equipped with the outlet, be equipped with insulating epoxy board and electric capacity core in the stainless steel shell, the electric capacity core is fixed on insulating epoxy board, and electric capacity core outside is filled has epoxy filler, its characterized in that: the capacitor core comprises a metallized safety film, a first through copper shaft and a second through copper shaft, wherein the metallized safety film is provided with a first parallel copper bar and a second parallel copper bar, the first parallel copper bar is connected with a first polar plate, the second parallel copper bar is connected with a second polar plate, and the first through copper shaft and the second through copper shaft penetrate through the metallized safety film; one end of the first through copper shaft penetrates through the second polar plate and is insulated from the second polar plate, and the other end of the first through copper shaft is connected with the first polar plate; one end of the second through copper shaft penetrates through the first polar plate and is insulated from the first polar plate, and the other end of the second through copper shaft is connected with the second polar plate; the first through copper shaft is insulated from the second pole plate through an insulating outer cladding on the first through copper shaft, and the second through copper shaft is insulated from the first pole plate through an insulating outer cladding on the second through copper shaft; the first through copper shaft is connected with the first polar plate through a metal spraying layer, and the metal spraying layer is arranged on the inner side surface of the first polar plate; the second through copper shaft is connected with the second pole plate through a metal spraying layer, and the metal spraying layer is arranged on the inner side surface of the second pole plate.
2. A feedthrough non-inductive capacitor as in claim 1, wherein: the metallized security film uses a T-shaped security film.
3. A feedthrough non-inductive capacitor as in claim 2, wherein: insulating edges are arranged on two sides of the T-shaped safety film.
4. A feedthrough non-inductive capacitor as in claim 2, wherein: and the T-shaped safety film is provided with a miniature fuse.
5. A feedthrough non-inductive capacitor as in claim 2, wherein: the miniature fuses on the T-shaped safety film are two pairs per square centimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025159.7A CN108039280B (en) | 2018-01-11 | 2018-01-11 | Penetration type noninductive capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025159.7A CN108039280B (en) | 2018-01-11 | 2018-01-11 | Penetration type noninductive capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108039280A CN108039280A (en) | 2018-05-15 |
| CN108039280B true CN108039280B (en) | 2023-11-03 |
Family
ID=62099128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810025159.7A Active CN108039280B (en) | 2018-01-11 | 2018-01-11 | Penetration type noninductive capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108039280B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH296811A (en) * | 1943-03-30 | 1954-02-28 | Siemens Ag | Electrical feed-through capacitor. |
| CN87106316A (en) * | 1986-09-11 | 1988-05-04 | Tdk株式会社 | Feedthrough capacitor and adopt the magnetron of this capacitor |
| JP2010067630A (en) * | 2008-09-08 | 2010-03-25 | Nippon Soken Inc | Metallized film capacitor |
| CN202585129U (en) * | 2012-05-07 | 2012-12-05 | 厦门华信安电子科技有限公司 | Multilayer tubular porcelain dielectric feed-through capacitor |
-
2018
- 2018-01-11 CN CN201810025159.7A patent/CN108039280B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH296811A (en) * | 1943-03-30 | 1954-02-28 | Siemens Ag | Electrical feed-through capacitor. |
| CN87106316A (en) * | 1986-09-11 | 1988-05-04 | Tdk株式会社 | Feedthrough capacitor and adopt the magnetron of this capacitor |
| JP2010067630A (en) * | 2008-09-08 | 2010-03-25 | Nippon Soken Inc | Metallized film capacitor |
| CN202585129U (en) * | 2012-05-07 | 2012-12-05 | 厦门华信安电子科技有限公司 | Multilayer tubular porcelain dielectric feed-through capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108039280A (en) | 2018-05-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 529000 No.1, Jinshun Road, East District, Jinguzhou Development Zone, Xinhui District, Jiangmen City, Guangdong Province (workshop) Applicant after: Guangdong Dean Electric Technology Co.,Ltd. Address before: 529000 No.1, Jinshun Road, East District, Jinguzhou Development Zone, Xinhui District, Jiangmen City, Guangdong Province (workshop) Applicant before: JIANGMEN DEAN ELECTRIC TECHNOLOGY Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |