CN103077824A - Capacitor with adjustable internal pressure - Google Patents
Capacitor with adjustable internal pressure Download PDFInfo
- Publication number
- CN103077824A CN103077824A CN2013100083211A CN201310008321A CN103077824A CN 103077824 A CN103077824 A CN 103077824A CN 2013100083211 A CN2013100083211 A CN 2013100083211A CN 201310008321 A CN201310008321 A CN 201310008321A CN 103077824 A CN103077824 A CN 103077824A
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- Prior art keywords
- capacitor
- metal shell
- pressure
- pressure regulator
- core group
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 86
- 239000002184 metal Substances 0.000 claims abstract description 30
- 238000005470 impregnation Methods 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000011104 metalized film Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses a capacitor with an adjustable internal pressure, which relates to the technical field of capacitors. The capacitor consists of a capacitor core group, an insulating layer, immersion oil, a metal shell and leading-out terminals, wherein the capacitor core group is arranged in the metal shell; the insulating layer is formed between the capacitor core group and the metal shell; the immersion oil is filled into gaps of the metal shell; and the leading-out terminals are led out of the upper part of the capacitor core group. The capacitor is characterized in that: a pressure regulator is arranged above the metal shell, and is used for controlling the internal pressure of the capacitor. An explosion-proof device is not adopted, but the pressure regulator is arranged on the capacitor; when a gas pressure generated by self-healing of a metal film and decomposition of the immersion oil inside the capacitor surpasses a specified value, the pressure regulator is started to exhaust residual gas; and when gas restores to internal and external balance, the pressure regulator is shut down, and the capacitor is isolated from the outside, so that the performance of the capacitor is prevented from being influenced by external factors.
Description
Technical field
The present invention relates to the capacitor technology field, be specifically related to a kind of interior pressure adjustable capacitor.
Background technology
Metallic film capacitor has self-healing feature, namely returns to by the light of nature immediately the electrical property phenomenon before puncturing behind the metallized film medium partial breakdown.In the self-healing process, metalized film can discharge portion gas.This type of capacitor is generally gathered around Packed metal shell, and inside holds impregnation oils or protective gas.There is impregnation oils such as capacitor internal, can improve electrical property, the increase thermal diffusivity of capacitor, but in use impregnation oils can decomposites portion gas under the effect of electric field.Capacitor is after long-term the use, and the gas of accumulation can be oppressed the metal shell of sealing, makes its bulging distortion, and explosion can appear in shell when serious, brings potential safety hazard.
In order to prevent the excessive rupture of case that causes of capacitor internal pressure, increased explosion-protection equipment at capacitor.Explosion-protection equipment is that the wire at capacitor arranges a weak spot, when capacitor case or cover plate after being deformed to a certain degree under the internal pressure effect, wire is stretched and disconnects from weak spot, capacitor is disconnected from the circuit, thereby prevent capacitor case rupture, guarantee capacitor safe.
In actual the use, have two shortcomings with the capacitor of explosion-protection equipment: the one, capacitor detonate too early, internal capacitor core group performance is also intact, explosion-protection equipment just moves, has caused waste and early failure; The 2nd, the priming device of capacitor fails to break wire, and internal pressure continues increase and causes the situation of rupture of case also to exist.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of interior pressure adjustable capacitor, and the capacitor internal pressure of sealing metal shell can be controlled in the suitable scope, can not cause the distortion of capacitor case bulging.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of interior pressure adjustable capacitor, by capacitor core group, insulating barrier, impregnation oils, metal shell, leading-out terminal forms, described capacitor core group is arranged in the metal shell, be provided with insulating barrier between described capacitor core group and the metal shell, described impregnation oils is filled in the space in the metal shell, described capacitor core group top leads to leading-out terminal, it is characterized in that: described metal shell top is equipped with pressure regulator, be used for pressing in the control capacitor, only have like this gas of overvoltage to discharge, and can not cause the leakage of inner impregnation oils.
Described pressure regulator is by welding or flange or clip or cutting ferrule or to folder connection metal shell top.
Described pressure regulator bottom is with external screw thread, and described pressure regulator is fixed on the riffled tube of metal shell top.
Described pressure regulator is bleeder valve, hand-operated valve.
Described pressure regulator is preferably safety valve, pressure Low lift safety valve especially, and it is applicable to the demand that the present invention has minimum gas to discharge, and valve is little opens, and can reduce the risk that ambient atmos is invaded.Safety valve is a kind of for the automatic pressure releasing device on pressurized equipment, container or the pipeline; when protected intrasystem pressure raises above permissible value; valve is opened automatically; the medium that discharge section is unnecessary; in case locking system pressure continue to raise, when system pressure reduced to certain setting, valve again can autoshutdown; thereby the assurance system normally moves, and uses safety valve to meet the needs of this patent control internal pressure.
Capacitor of the present invention is generally made under normal pressure, and when not devoting oneself to work, interior pressure is 1 atmospheric pressure, is about 1.0kgf/cm
2, can not make the distortion of capacitor metal shell in order to guarantee in the capacitor to press, can set press in the capacitor increased by 20% after, safety valve is opened, and reduces the interior pressure of capacitor, guarantees the safety of capacitor, namely safety valve to play seat pressure be 1.2kgf/cm
2
Described capacitor is square circular or oval or other shape.
The invention has the beneficial effects as follows: the present invention does not adopt explosion-protection equipment, but increased pressure regulator at capacitor, when capacitor internal decomposed the gas pressure that produces and surpasses setting because of metalized film self-healing and impregnation oils after, pressure regulator was opened, and unnecessary gas is discharged; After gas returned to internal and external equilibrium, pressure regulator cut out, capacitor and extraneous isolation, and the performance of assurance capacitor is not subjected to the impact of extraneous factor.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, a kind of interior pressure adjustable capacitor, formed by capacitor core group 1, insulating barrier 2, impregnation oils 3, metal shell 4, leading-out terminal 5 and the pressure regulator 6 that is installed in metal shell 4 tops, capacitor core group 1 is the main function components of capacitor, keep insulation between itself and the metal shell 4 for making, capacitor core group 1 outer wrap has insulating barrier 2.For clear performance goes out capacitor core group 1, done the broken section processing among Fig. 1, impregnation oils 3 is filled in the space in the metal shell 4.The parts pressure regulator 6 of pressing in the control capacitor is installed in the top of metal shell 4, only has like this gas of overvoltage to discharge, and can not cause the leakage of inner impregnation oils 3.
Pressure regulator 6 installing and fixing methods have multiple, connect, folder is connected such as welding, flange connection, clamp connection, cutting ferrule etc.Preferred mode is for being threaded, and pressure regulator 6 bottoms are fixed on the riffled tube 7 of capacitor case top with external screw thread.
Pressure regulator 6 preferred security valves, especially pressure Low lift safety valve.It is applicable to the demand that the present invention has minimum gas to discharge, and valve is little opens, and can reduce the risk that ambient atmos is invaded.
Capacitor of the present invention is generally made under normal pressure, and when not devoting oneself to work, interior pressure is 1 atmospheric pressure, is about 1.0kgf/cm
2Can not make 4 distortion of capacitor metal shell in order to guarantee in the capacitor to press, can set press in the capacitor increased by 20% after, safety valve is opened, and reduces the interior pressure of capacitor, guarantees the safety of capacitor.A seat pressure that is safety valve is 1.2kgf/cm
2
Capacitor can not have impregnation oils 3 with impregnation oils 3 in the capacitor yet among Fig. 1, and fills protective gas in inside.
Among Fig. 1 capacitor be shaped as squarely, the shape of capacitor also can be other shapes such as circular, oval.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. pressure adjustable capacitor in a kind, formed by capacitor core group, insulating barrier, impregnation oils, metal shell, leading-out terminal, described capacitor core group is arranged in the metal shell, be provided with insulating barrier between described capacitor core group and the metal shell, described impregnation oils is filled in the space in the metal shell, described capacitor core group top leads to leading-out terminal, it is characterized in that: described metal shell top is equipped with pressure regulator, is used for pressing in the control capacitor.
2. interior pressure adjustable capacitor according to claim 1 is characterized in that: described pressure regulator is by welding or flange or clip or cutting ferrule or to folder connection metal shell top.
3. interior pressure adjustable capacitor according to claim 1 is characterized in that: described pressure regulator bottom is with external screw thread, and described pressure regulator is fixed on the riffled tube of metal shell top.
4. interior pressure adjustable capacitor according to claim 1, it is characterized in that: described pressure regulator is bleeder valve or hand-operated valve.
5. interior pressure adjustable capacitor according to claim 1, it is characterized in that: described pressure regulator is preferably safety valve.
6. interior pressure adjustable capacitor according to claim 5, it is characterized in that: described safety valve is selected the pressure Low lift safety valve.
7. interior pressure adjustable capacitor according to claim 5 is characterized in that: described safety valve to play seat pressure be 1.2kgf/cm
2
8. interior pressure adjustable capacitor according to claim 7 is characterized in that: described capacitor be square circular or oval or other can make the shape of capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100083211A CN103077824A (en) | 2013-01-09 | 2013-01-09 | Capacitor with adjustable internal pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100083211A CN103077824A (en) | 2013-01-09 | 2013-01-09 | Capacitor with adjustable internal pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103077824A true CN103077824A (en) | 2013-05-01 |
Family
ID=48154326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100083211A Pending CN103077824A (en) | 2013-01-09 | 2013-01-09 | Capacitor with adjustable internal pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103077824A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578759A (en) * | 2013-10-22 | 2014-02-12 | 国家电网公司 | Pressure balance capacitor |
| CN104576036A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Highland low-air-pressure capacitor |
| CN104576047A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Capacitor provided with external pressure regulation bag |
| CN104576039A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Pressure self-adaptive capacitor |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2582133Y (en) * | 2002-10-24 | 2003-10-22 | 江苏隆源双登电源有限公司 | large-capacity rectangular super capacitor |
| CN1610799A (en) * | 2001-11-22 | 2005-04-27 | Nok株式会社 | Pressure release valve |
| CN201323134Y (en) * | 2008-11-10 | 2009-10-07 | 郑州大学 | Active carbon combined electrode supercapacitor |
| CN101840788A (en) * | 2009-01-30 | 2010-09-22 | 东芝照明技术株式会社 | Electrolytic capacitors and electrical equipment |
| CN101894970A (en) * | 2009-05-18 | 2010-11-24 | 富士重工业株式会社 | Electric storage device |
| CN201681723U (en) * | 2010-03-23 | 2010-12-22 | 江苏贝思特动力电源有限公司 | Safety valve for super capacitor |
| CN201741583U (en) * | 2010-06-30 | 2011-02-09 | 南京双登科技发展研究院有限公司 | Top cover of inorganic super capacitor |
| CN201749788U (en) * | 2009-12-25 | 2011-02-16 | 哈尔滨巨容新能源有限公司 | An electric double layer capacitor for a vehicle |
| CN102468462A (en) * | 2010-10-28 | 2012-05-23 | 卡尔·弗罗伊登伯格公司 | Magnetically sealing valve device for a battery casing |
| CN202585131U (en) * | 2012-05-23 | 2012-12-05 | 邱宗清 | Supercapacitor casing |
| CN102856526A (en) * | 2011-06-27 | 2013-01-02 | 台达电子工业股份有限公司 | Energy storage element packaging structure |
-
2013
- 2013-01-09 CN CN2013100083211A patent/CN103077824A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610799A (en) * | 2001-11-22 | 2005-04-27 | Nok株式会社 | Pressure release valve |
| CN2582133Y (en) * | 2002-10-24 | 2003-10-22 | 江苏隆源双登电源有限公司 | large-capacity rectangular super capacitor |
| CN201323134Y (en) * | 2008-11-10 | 2009-10-07 | 郑州大学 | Active carbon combined electrode supercapacitor |
| CN101840788A (en) * | 2009-01-30 | 2010-09-22 | 东芝照明技术株式会社 | Electrolytic capacitors and electrical equipment |
| CN101894970A (en) * | 2009-05-18 | 2010-11-24 | 富士重工业株式会社 | Electric storage device |
| CN201749788U (en) * | 2009-12-25 | 2011-02-16 | 哈尔滨巨容新能源有限公司 | An electric double layer capacitor for a vehicle |
| CN201681723U (en) * | 2010-03-23 | 2010-12-22 | 江苏贝思特动力电源有限公司 | Safety valve for super capacitor |
| CN201741583U (en) * | 2010-06-30 | 2011-02-09 | 南京双登科技发展研究院有限公司 | Top cover of inorganic super capacitor |
| CN102468462A (en) * | 2010-10-28 | 2012-05-23 | 卡尔·弗罗伊登伯格公司 | Magnetically sealing valve device for a battery casing |
| CN102856526A (en) * | 2011-06-27 | 2013-01-02 | 台达电子工业股份有限公司 | Energy storage element packaging structure |
| CN202585131U (en) * | 2012-05-23 | 2012-12-05 | 邱宗清 | Supercapacitor casing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104576036A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Highland low-air-pressure capacitor |
| CN104576047A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Capacitor provided with external pressure regulation bag |
| CN104576039A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Pressure self-adaptive capacitor |
| CN103578759A (en) * | 2013-10-22 | 2014-02-12 | 国家电网公司 | Pressure balance capacitor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130501 |