CN102184782A - Aluminum casing for electrolytic capacitor - Google Patents
Aluminum casing for electrolytic capacitor Download PDFInfo
- Publication number
- CN102184782A CN102184782A CN 201110031521 CN201110031521A CN102184782A CN 102184782 A CN102184782 A CN 102184782A CN 201110031521 CN201110031521 CN 201110031521 CN 201110031521 A CN201110031521 A CN 201110031521A CN 102184782 A CN102184782 A CN 102184782A
- Authority
- CN
- China
- Prior art keywords
- aluminum hull
- electrolytic capacitor
- capacitor
- aluminum casing
- dielectric film
- 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.)
- Pending
Links
Images
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention provides an aluminum casing for an electrolytic capacitor. The aluminum casing comprises an aluminum casing body (2), wherein an insulating film (1) is arranged on the inner wall of the aluminum casing body. In the electrolytic capacitor, the insulating film is arranged on the inner wall of the aluminum casing, and the inner wall of the aluminum casing body can be prevented from directly contacting a cathode and an anode in a capacitor core by utilizing the film, so that the capacitor is prevented from short-circuiting. Therefore, the capacitor core in the electrolytic capacitor can be extended to ensure that the capacitance is increased by 40 percent under conditions of invariable outer diameter of the aluminum casing and the same pressure resistance.
Description
Technical field
The aluminum hull of a kind of electrolytic capacitor that the present invention relates to belongs to capacitor technology field in the electricity.
Background technology
Electrolytic capacitor is to be made of aluminum hull, capacitor core and Jiao Gai.Wherein capacitor core is to be overlapped for 4 layers by anode metal paper tinsel, electrolytic paper, cathodic metal paper tinsel, electrolytic paper etc. to reel, and handles forming again through impregnation electrolyte.The aluminum hull of electrolytic capacitor is the shell of electrolytic capacitor, has protection capacitor core, isolated capacitor core and extraneous effect.The aluminum hull of electrolytic capacitor of the prior art is stamped to form by aluminium, its inwall does not have insulating capacity, therefore electrolytic capacitor when assembling around the capacitor core must and the inwall of aluminum hull between remaining bigger spacing distance, produce the crooked aluminum hull inwall of running into to prevent the possible capacitor core that causes because of installation accuracy is not high.Capacitor core contacts with aluminum hull and then can make aluminum hull make faults such as capacitor core short circuit.
Summary of the invention
At above-mentioned deficiency, technical problem to be solved by this invention is to stop capacitor core because of contacting short circuit with aluminum hull, thereby the aluminum hull of the electrolytic capacitor that a kind of inwall insulate is provided.
The aluminum hull of electrolytic capacitor of the present invention has the aluminum hull body, on the inwall of aluminum hull body dielectric film is arranged.
Electrolytic capacitor of the present invention has one deck dielectric film at the aluminum hull inwall, utilizes this tunic can stop aluminum hull inner body wall negative and positive the two poles of the earth direct and in the capacitor core to contact and make capacitor generation short circuit.Therefore, use aluminum hull of the present invention can make around the capacitor core and the aluminum hull inwall between spacing distance dwindle, even can narrow down to zero.Also promptly in keeping capacitor core, under the situation of electrode area constant (constancy of volume of capacitor core), can dwindle the external diameter of aluminum hull, or keep the aluminum hull size constant, can increase the volume of capacitor core.Experiment also shows, if the aluminum hull external diameter is constant and under same requirement of withstand voltage, capacitor core can expand to and make capacitance promote 40% in the electrolytic capacitor.Therefore, can realize improving capacitance under the equal-volume and can preventing capacitor short-circuit.Ask little and thickness to ask day by day under the thin situation day by day in the size of present various electronic systems (product), the present invention can untie the restriction of the bigger volume of existing electrolytic capacitor to the development of littleizationr of electronic product keeping function and performance not to lose the overall dimensions of dwindling electrolytic capacitor on the basis of previous level.
The aluminum hull of electrolytic capacitor of the present invention, the dielectric film on the said aluminum hull inner body wall face is a coating.
The aluminum hull of electrolytic capacitor of the present invention, said dielectric film coating layer thickness between 5 ~ 25 μ m, 8 μ m preferably.
The aluminum hull of electrolytic capacitor of the present invention, the dielectric film on the said aluminum hull inner body wall face are one to stick with glue the dielectric film that the agent layer connects.
The aluminum hull of electrolytic capacitor of the present invention, the dielectric film on the said aluminum hull inner body wall face is the erosion resisting insulation film, to avoid aluminum hull body and electrolyte generation chemical reaction, improves useful life.
Said erosion resisting insulation film serves as main the composition with synthetic resin or fluoroplastics or fluorubber, and all the other are coalescents.
Said erosion resisting insulation membrane coat is by 48 ~ 56% polyurethane polyol, 38.6 ~ 47% mixed solvent, 2.7 ~ 3.5% the polyester capacitor aluminum housing coating paint formed of modified dimethyl polysiloxane, 0.28 ~ 0.34% polyether-modified polysiloxane, 0.18 ~ 0.24 organosilicon and 1.44 ~ 1.72% silane altogether, wherein percentage is mass percent, and said mixed solvent is heavily mixed for 30 ~ 40 parts by 60 ~ 70 parts heavy of ethyl ketones and ketone.
Description of drawings
Fig. 1 is the structure chart of one embodiment of the invention, among the figure: 1-insulating barrier, 2-aluminum hull body, 3-insulating barrier.
Embodiment
1, the aluminum hull of an electrolytic capacitor sticks with glue agent and posts one deck dielectric film on the internal face of aluminum hull body.
2, the aluminum hull of an electrolytic capacitor all scribbles one deck erosion resisting insulation film 1,3 on the inside and outside wall of aluminum hull body 2.Manufacturing process is respectively to be coated with the last layer erosion resisting insulation on the two sides of aluminium sheet earlier to film, and polyurethane polyol 48.4% is arranged, surperficial slip agent 3.5% during erosion resisting insulation is filmed, levelling agent 0.32%, defoamer 0.18%, adhesion promoter 1.6%, ethyl ketone 30%, ketone 16%.The aluminum hull that the electrolytic capacitor that erosion resisting insulation films is all arranged inside and outside the punching out of aluminium sheet pull and stretch being formed again.
3, the aluminum hull of an electrolytic capacitor scribbles one deck erosion resisting insulation film on the internal face of aluminum hull body, coating composition is an epoxy resin.
4, the aluminum hull of an electrolytic capacitor, the erosion resisting insulation film on the aluminum hull inner body wall are with sticking multiple nylon membrane behind the gluing.
5, the aluminum hull of an electrolytic capacitor, the erosion resisting insulation film on the aluminum hull inner body wall is a teflon coatings.
Claims (6)
1. the aluminum hull of an electrolytic capacitor has the aluminum hull body, it is characterized in that on the inwall of aluminum hull body dielectric film being arranged.
2. the aluminum hull of electrolytic capacitor as claimed in claim 1 is characterized in that the dielectric film on the said aluminum hull inner body wall face is a coating.
3. the aluminum hull of electrolytic capacitor as claimed in claim 2 is characterized in that said dielectric film coating layer thickness is between 5 ~ 25 μ m.
4. the aluminum hull of electrolytic capacitor as claimed in claim 2 is characterized in that said dielectric film coating layer thickness is 8 μ m.
5. the aluminum hull of electrolytic capacitor as claimed in claim 1 is characterized in that dielectric film on the said aluminum hull inner body wall face is one to stick with glue the dielectric film of agent layer bonding.
6. as the aluminum hull of claim 1 or 2 or 5 described electrolytic capacitors, it is characterized in that the dielectric film on the said aluminum hull inner body wall face is the erosion resisting insulation film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031521 CN102184782A (en) | 2011-01-29 | 2011-01-29 | Aluminum casing for electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031521 CN102184782A (en) | 2011-01-29 | 2011-01-29 | Aluminum casing for electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102184782A true CN102184782A (en) | 2011-09-14 |
Family
ID=44570941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110031521 Pending CN102184782A (en) | 2011-01-29 | 2011-01-29 | Aluminum casing for electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102184782A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683005A (en) * | 2012-05-18 | 2012-09-19 | 苏州慧飞信息科技有限公司 | Novel capacitor |
| CN103035411A (en) * | 2012-12-29 | 2013-04-10 | 中国航空工业集团公司第六三一研究所 | Flat-plate aluminum electrolytic capacitor and reinforcing method thereof |
| CN103489634A (en) * | 2013-09-06 | 2014-01-01 | 安徽赛福电子有限公司 | Corrosion-resistant type photovoltaic wind electricity capacitor |
| CN104465108A (en) * | 2014-11-20 | 2015-03-25 | 上海永铭电子有限公司 | Aluminum electrolytic capacitor resistant to lightning strokes |
| CN104900408A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor resistant to inverse voltage |
| CN105140030A (en) * | 2015-09-23 | 2015-12-09 | 纽茵泰克株式会社 | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
| CN109192504A (en) * | 2018-08-13 | 2019-01-11 | 江门市德佑金属材料实业有限公司 | A kind of capacitor protector with flange |
| CN109545555A (en) * | 2018-11-05 | 2019-03-29 | 铜陵市超越电子有限公司 | A kind of production technology of photovoltaic apparatus thin film capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112136Y (en) * | 2007-09-04 | 2008-09-10 | 舟山市新龙电子设备有限公司 | Plastered capacitor shell |
| CN101339850A (en) * | 2008-06-10 | 2009-01-07 | 舟山市新龙电子设备有限公司 | Capacitor aluminum housing coating paint and coating process |
| CN101770864A (en) * | 2010-02-10 | 2010-07-07 | 无锡宏广电容器有限公司 | Foil-type end-cover explosion-proof capacitor |
| CN101958193A (en) * | 2009-07-13 | 2011-01-26 | 日科能高电子(苏州)有限公司 | Insulating aluminium shell capacitor, aluminium shell and manufacturing method of aluminium shell |
| CN202093989U (en) * | 2011-05-04 | 2011-12-28 | 舟山市新龙电子设备有限公司 | Electrolytic capacitor aluminium casing |
-
2011
- 2011-01-29 CN CN 201110031521 patent/CN102184782A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112136Y (en) * | 2007-09-04 | 2008-09-10 | 舟山市新龙电子设备有限公司 | Plastered capacitor shell |
| CN101339850A (en) * | 2008-06-10 | 2009-01-07 | 舟山市新龙电子设备有限公司 | Capacitor aluminum housing coating paint and coating process |
| CN101958193A (en) * | 2009-07-13 | 2011-01-26 | 日科能高电子(苏州)有限公司 | Insulating aluminium shell capacitor, aluminium shell and manufacturing method of aluminium shell |
| CN101770864A (en) * | 2010-02-10 | 2010-07-07 | 无锡宏广电容器有限公司 | Foil-type end-cover explosion-proof capacitor |
| CN202093989U (en) * | 2011-05-04 | 2011-12-28 | 舟山市新龙电子设备有限公司 | Electrolytic capacitor aluminium casing |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683005A (en) * | 2012-05-18 | 2012-09-19 | 苏州慧飞信息科技有限公司 | Novel capacitor |
| CN103035411A (en) * | 2012-12-29 | 2013-04-10 | 中国航空工业集团公司第六三一研究所 | Flat-plate aluminum electrolytic capacitor and reinforcing method thereof |
| CN103035411B (en) * | 2012-12-29 | 2016-04-20 | 中国航空工业集团公司第六三一研究所 | A kind of reinforcement means of flat alminium electrolytic condenser and flat alminium electrolytic condenser |
| CN103489634A (en) * | 2013-09-06 | 2014-01-01 | 安徽赛福电子有限公司 | Corrosion-resistant type photovoltaic wind electricity capacitor |
| CN104465108A (en) * | 2014-11-20 | 2015-03-25 | 上海永铭电子有限公司 | Aluminum electrolytic capacitor resistant to lightning strokes |
| CN104465108B (en) * | 2014-11-20 | 2017-12-22 | 上海永铭电子有限公司 | A kind of aluminium electrolutic capacitor of anti-lightning |
| CN104900408A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Aluminium electrolytic capacitor resistant to inverse voltage |
| CN105140030A (en) * | 2015-09-23 | 2015-12-09 | 纽茵泰克株式会社 | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
| CN109192504A (en) * | 2018-08-13 | 2019-01-11 | 江门市德佑金属材料实业有限公司 | A kind of capacitor protector with flange |
| CN109545555A (en) * | 2018-11-05 | 2019-03-29 | 铜陵市超越电子有限公司 | A kind of production technology of photovoltaic apparatus thin film capacitor |
| CN109545555B (en) * | 2018-11-05 | 2020-10-27 | 铜陵市超越电子有限公司 | Production process of thin film capacitor for photovoltaic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102184782A (en) | Aluminum casing for electrolytic capacitor | |
| TWI470658B (en) | All solid-state electrochemical double layer supercapacitor | |
| JP2021145135A (en) | Electrolytic capacitor and manufacturing method therefor | |
| TWI342030B (en) | Electrode member for capacitor and method for manufacturing the same, and capacitor including the electrode member | |
| TW201205615A (en) | Solid electrolytic capacitor and method for manufacturing solid electrolytic capacitor | |
| US8305733B2 (en) | Super-capacitor electrode | |
| WO2016174807A1 (en) | Electrolytic capacitor | |
| Keskinen et al. | Architectural modifications for flexible supercapacitor performance optimization | |
| US20120212880A1 (en) | Electrolytic capacitor and method of manufacturing electrolytic capacitor | |
| JP5906374B2 (en) | Capacitor and manufacturing method thereof | |
| CN103680978B (en) | High-specific-volume low-voltage aluminum electrolytic capacitor and manufacturing method thereof | |
| CN104934224A (en) | Aluminum electrolytic capacitor | |
| CN203085371U (en) | Aluminium electrolytic capacitor | |
| CN107210133B (en) | Electrolytic capacitor and its manufacturing method | |
| CN105340115A (en) | Method and apparatus for energy storage | |
| CN106463265B (en) | Electrolytic capacitor and its manufacturing method | |
| CN202093989U (en) | Electrolytic capacitor aluminium casing | |
| WO2008106533A1 (en) | Ultracapacitor collector and/or package with controlled magnesium content | |
| US20170178816A1 (en) | Winding-type stacked body for condenser with high electrostatic capacitance and stacked winding-type condenser using the same | |
| TWI546831B (en) | Carbon electrode for electric double layer capacitor, fabrication method thereof, and electric double layer capacitor | |
| JP2009188395A (en) | Manufacturing method of electrochemical capacitor, and electrochemical capacitor manufactured by the method | |
| WO2018043063A1 (en) | Electrolytic capacitor and method for producing same | |
| WO2020158780A1 (en) | Electrolytic capacitor and method for manufacturing same | |
| CN202076142U (en) | Electrolytic capacitor | |
| CN202523569U (en) | Electrolytic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110914 |