CN103440992A - Aluminum electrolytic capacitor cover plate - Google Patents
Aluminum electrolytic capacitor cover plate Download PDFInfo
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- CN103440992A CN103440992A CN2013104000557A CN201310400055A CN103440992A CN 103440992 A CN103440992 A CN 103440992A CN 2013104000557 A CN2013104000557 A CN 2013104000557A CN 201310400055 A CN201310400055 A CN 201310400055A CN 103440992 A CN103440992 A CN 103440992A
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- electrolytic capacitor
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Abstract
The invention relates to the field of basic electrical elements, and particularly relates to an aluminum electrolytic capacitor cover plate which comprises a cover plate inner layer and a cover plate outer layer. The cover plate outer layer is a resin plate layer, and the cover plate inner layer is a rubber layer. The rubber layer is connected with the resin plate layer via aluminum rivets. The rubber layer and the resin plate layer are formed by stitching. Beneficial effects of the aluminum electrolytic capacitor cover plate are that requirements of aspects in insulating performance and strength of the capacitor can be met by using common phenolic resin plates or bakelite plates so that the cost is greatly reduced. Besides, glue is not needed between rubber and plate materials so that processing steps are reduced and the service life is greatly enhanced.
Description
Technical field
The present invention relates to the essential electronic element field, relate in particular to a kind of aluminum electrolytic capacitor cover plate.
Background technology
The special-purpose cover plate of existing aluminium electrolytic capacitor divides two classes, a kind of is the SNAP-IN(ox horn) the type cover plate, this cover plate is double-layer structure also, what lower floor contacted with capacitor body is low chlorophenol urea formaldehyde plate, by low chlorophenol urea formaldehyde and the mixed pressure of paper composite multi-layer, formed, mainly play a supportive role, require it that enough intensity is arranged, high temperature is indeformable, simultaneously because the plate face is direct and fuse, the electrolyte contact, when capacitor stores and work, can not react with electrolyte, the more important thing is and can not decompose under electrochemical action, chloride ion or other ion that capacitor is impacted or impurity dissociate, because chloride ion meeting antianode when capacitor stores and work leads chaff and anode foils causes fatal destruction, therefore to the Cl ion concentration requirement of sheet material, be to be less than 3PPM.The cover plate upper strata is gluing one deck elastomeric material that adheres to, and rubber is ethylene-propylene diene copolymer, and Main Function makes aluminum hull crimping position be sealed on rubber face while being the product sealing under pressure.
Existing electrolytic capacitor also has a kind of SCREW screw bolt-type cover plate with cover plate, structure is: low chlorophenol urea formaldehyde plate, embed the aluminium wire button, and the main material of low chlorophenol urea formaldehyde plate is also low chlorophenol urea formaldehyde, different from the SNAP-IN cover plate, sheet material is only by low chlorophenol urea formaldehyde die cast.Because the SCREW product is mainly the above product of diameter phi 42mm, higher to the cover plate requirement of strength, so cover sheet thickness is thicker than the cover plate of SNAP-IN structure.
Existing aluminium electrolytic capacitor is with cover plate because require highlyer to the low chlorophenol urea formaldehyde of main material, the sheet material that China does not also really reach a standard at present, in particular for the high-voltage product aspect.The main place of production of low chlorophenol urea formaldehyde: Austria, Germany, Japan, Korea S, with common phenolic resins or bakelite plate, to compare price very expensive.In addition, limitation because of the phenolic resins material, chloride ion examination criteria minimum only can reach 3PPM, add that resin at high temperature can decompose, change other impurity of generation as halogen, electrolytic capacitor is harmful to, especially can have a strong impact on the useful life of capacitor, present 105 ℃ of products in life-span more than 5000 hours are difficult to accomplish.
In addition, the manufacturing process relative complex of existing cover plate.Between rubber and sheet material, need by the glue bonding firmly, in 120 ℃ of environment, to deposit 0.5H, peel strength will reach 1.0N/mm2, so glue is had to specific (special) requirements; Need high-temperature baking (more than 200 degree approximately 2 hours, purpose is to remove volatile impurity) during low chlorophenol urea formaldehyde plate pressing; After completing, pressing also needs edging etc.
Summary of the invention
For the defect existed in prior art or deficiency, technical problem to be solved by this invention is: the blind flange that a kind of aluminium electroloysis special (purpose) rubber and common phenolic resins plate or bakelite plate composite construction are provided, in meeting, the large-scale electrolysis capacitor to the low chlorine requirement of material, meets long-life, low cost, the simple needs of technique aspect the cover plate encapsulation.
The technical scheme that the present invention takes is for providing a kind of aluminum electrolytic capacitor cover plate, comprise cover plate internal layer and cover plate skin, described cover plate skin is the resin flaggy, described cover plate internal layer is rubber layer, described rubber layer is connected by aluminium rivet with described resin flaggy, and described rubber layer and described resin flaggy form by pressing.
As a further improvement on the present invention, the material of described rubber layer adopts butyl rubber.
As a further improvement on the present invention, the material of described rubber layer adopts ethylene-propylene diene copolymer.
As a further improvement on the present invention, the material of described rubber layer adopts the epoxy glue of butyl rubber and ethylene-propylene diene copolymer.
As a further improvement on the present invention, in the material of described rubber layer, rubber content is 35%-40%.
As a further improvement on the present invention, in the material of described rubber layer, chloride ion content is less than 0.1PPM.
As a further improvement on the present invention, described resin flaggy is the phenolic resins plate.
As a further improvement on the present invention, described resin flaggy is bakelite plate.。
The invention has the beneficial effects as follows: the insulation property that only need the common phenolic resins plate of use or bakelite plate can meet capacitor and the requirement of intensity aspect, cost reduces greatly, do not need to use glue between rubber and sheet material, reduced processing step, greatly improve useful life.
The accompanying drawing explanation
Fig. 1 is the structural representation of aluminum electrolytic capacitor cover plate of the present invention;
Fig. 2 is the vertical view of aluminum electrolytic capacitor cover plate of the present invention;
Fig. 3 is the scheme of installation of aluminum electrolytic capacitor cover plate of the present invention;
Fig. 4 is the structural representation after the installation of aluminum electrolytic capacitor cover plate of the present invention;
Fig. 5 is traditional aluminum electrolytic capacitor cover plate high-temperature storage experimental data;
Fig. 6 is aluminum electrolytic capacitor cover plate high-temperature storage experimental data of the present invention;
Fig. 7 is traditional aluminum electrolytic capacitor cover plate high-temperature load life experimental data;
Fig. 8 is aluminum electrolytic capacitor cover plate high-temperature load life experimental data of the present invention;
Numeral wherein: 1, resin flaggy; 2, rubber layer; 3, aluminium rivet; 4, cover plate; 5, lead chaff; 6, core bag; 7, aluminum hull; 8, sealing device.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the present invention is further described.
As shown in Figure 1, the invention provides a kind of aluminum electrolytic capacitor cover plate, comprise cover plate internal layer and cover plate skin, described cover plate skin is resin flaggy 1, described cover plate internal layer is rubber layer 2, described rubber layer 2 is connected by aluminium rivet 3 with described resin flaggy 1, and described rubber layer 2 forms by pressing with described resin flaggy 1, cover plate.
As shown in Figure 1, aluminum electrolytic capacitor cover plate of the present invention, the contacted inner layer material of capacitor body is capacitor level butyl rubber, ethylene-propylene diene copolymer or the epoxy glue of the two (rubber content ratio 35--40%), the extensive use in the lead type product of this several rubber, it uses different materials or mixture according to the height of cost, and in capacitor, long-term serviceability is stable, good sealing effect, chloride ion content can control to below 0.1PPM.The lead type Long Life Products can reach 10000--20000 hour under 105 ℃ of limiting temperatures.The blind flange cladding material is common phenolic resins plate, mainly plays a supportive role, and high temperature is indeformable.Both connect by aluminium rivet, between ectonexine, do not need glue bonding, and the sealing surface between cover plate 4 and aluminum hull 7 is transferred between rubber face and aluminum shell notching, and pressure seal face is on aluminum hull crimping and resin plate (or bakelite plate).Due to resin plate (or bakelite plate) not contacting capacitor core bag 6 and electrolyte, do not need the content of chloride ion is proposed to too high request, the requirement that only need to meet insulation property and intensity aspect gets final product, and therefore uses common domestic sheet material to meet the demands, and cost reduces greatly.Adopting the bound edge rubber sealing structure in this programme, is the best solution that realizes cover plate, bolt type product long lifetime.
The manufacturing process of cover plate of the present invention is relatively simple, between rubber layer and resin flaggy, does not need glue, high-temperature baking, uses the pressing technology, and rubber layer and resin flaggy carry out pressing, then carries out punching press and get final product.
Poach experiment, oppositely red ink experiment, high low-temperature circulating, the explosion-proof experiment of the present invention in the air-tightness experiment is all qualified.
Other supplementary materials are constant, and the 400V470 μ F product that uses the cover plate of alminium electrolytic condenser of the present invention to make is done high-temperature storage 105 ℃ of contrasts, its experimental data of high-temperature load life experiment is as follows:
Tradition aluminum electrolytic capacitor cover plate high-temperature storage experimental data as shown in Figure 5.
Aluminum electrolytic capacitor cover plate high-temperature storage experimental data of the present invention as shown in Figure 6.
Tradition aluminum electrolytic capacitor cover plate high-temperature load life experimental data as shown in Figure 7.
Aluminum electrolytic capacitor cover plate high-temperature load life experimental data of the present invention as shown in Figure 8.
Experimental result shows: the high-temperature storage result is than common lid plate hight more than 2 times, and the high-temperature load experimental result is high more than 1.5 times.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. an aluminum electrolytic capacitor cover plate, it is characterized in that: comprise cover plate internal layer and cover plate skin, described cover plate skin is the resin flaggy, and described cover plate internal layer is rubber layer, described rubber layer is connected by aluminium rivet with described resin flaggy, and described rubber layer and described resin flaggy form by pressing.
2. aluminum electrolytic capacitor cover plate according to claim 1, is characterized in that: the material employing butyl rubber of described rubber layer.
3. aluminum electrolytic capacitor cover plate according to claim 1, is characterized in that: the material employing ethylene-propylene diene copolymer of described rubber layer.
4. according to the described aluminum electrolytic capacitor cover plate of claim 2 or 3, it is characterized in that: the material of described rubber layer adopts the epoxy glue of butyl rubber and ethylene-propylene diene copolymer.
5. aluminum electrolytic capacitor cover plate according to claim 4, it is characterized in that: in the material of described rubber layer, rubber content is 35%-40%.
6. aluminum electrolytic capacitor cover plate according to claim 5, it is characterized in that: in the material of described rubber layer, chloride ion content is less than 0.1PPM.
7. aluminum electrolytic capacitor cover plate according to claim 1, it is characterized in that: described resin flaggy is the phenolic resins plate.
8. aluminum electrolytic capacitor cover plate according to claim 1, it is characterized in that: described resin flaggy is bakelite plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104000557A CN103440992A (en) | 2013-09-04 | 2013-09-04 | Aluminum electrolytic capacitor cover plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104000557A CN103440992A (en) | 2013-09-04 | 2013-09-04 | Aluminum electrolytic capacitor cover plate |
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| CN103440992A true CN103440992A (en) | 2013-12-11 |
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| CN2013104000557A Pending CN103440992A (en) | 2013-09-04 | 2013-09-04 | Aluminum electrolytic capacitor cover plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261479A (en) * | 2015-09-07 | 2016-01-20 | 湖南艾华集团股份有限公司 | Multi-element capacitor |
| CN105405649A (en) * | 2015-11-13 | 2016-03-16 | 太仓荣中机电科技有限公司 | Waterproof capacitor |
| CN106449115A (en) * | 2016-10-31 | 2017-02-22 | 丰宾电子（深圳）有限公司 | Charging-and-discharging-resistant aluminum electrolytic capacitor used for charging pile and application thereof |
| CN107578922A (en) * | 2017-09-21 | 2018-01-12 | 南通新三能电子有限公司 | A kind of welding needle type aluminium electrolutic capacitor and its manufacture method |
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| US4663824A (en) * | 1983-07-05 | 1987-05-12 | Matsushita Electric Industrial Co., Ltd. | Aluminum electrolytic capacitor and a manufacturing method therefor |
| CN2190342Y (en) * | 1994-03-06 | 1995-02-22 | 姜正明 | Aluminum electrolytic capacitor with low contact resistance |
| US6385490B1 (en) * | 1999-12-16 | 2002-05-07 | Cardiac Pacemakers, Inc. | Capacitors with recessed rivets allow smaller implantable defibrillators |
| CN1707710A (en) * | 2005-04-11 | 2005-12-14 | 万裕三信电子(东莞)有限公司 | Aluminium electrolytic capacitor and electrolyte |
| CN1830045A (en) * | 2003-07-29 | 2006-09-06 | 松下电器产业株式会社 | Aluminum electrolytic capacitor |
| CN101399123A (en) * | 2007-09-27 | 2009-04-01 | 厚生股份有限公司 | Processing method for roll aluminium electrolysis capacitor insulation sheet rubber |
| CN201532858U (en) * | 2009-10-29 | 2010-07-21 | 深圳江浩电子有限公司 | Aluminum electrolytic capacitor cover plate and aluminum electrolytic capacitor thereof |
| CN102702628A (en) * | 2012-06-15 | 2012-10-03 | 浙江省天台祥和实业有限公司 | Method for producing rubber sealing plug composition for aluminum electrolytic capacitor by using butyl rubber as main material |
| CN202523570U (en) * | 2012-03-02 | 2012-11-07 | 深圳东佳电子有限公司 | Aluminum electrolytic capacitor cover plate with high security and long service life |
| CN202616053U (en) * | 2012-06-25 | 2012-12-19 | 南通新三能电子有限公司 | Large shock-resistant aluminum electrolytic capacitor |
-
2013
- 2013-09-04 CN CN2013104000557A patent/CN103440992A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4663824A (en) * | 1983-07-05 | 1987-05-12 | Matsushita Electric Industrial Co., Ltd. | Aluminum electrolytic capacitor and a manufacturing method therefor |
| CN2190342Y (en) * | 1994-03-06 | 1995-02-22 | 姜正明 | Aluminum electrolytic capacitor with low contact resistance |
| US6385490B1 (en) * | 1999-12-16 | 2002-05-07 | Cardiac Pacemakers, Inc. | Capacitors with recessed rivets allow smaller implantable defibrillators |
| CN1830045A (en) * | 2003-07-29 | 2006-09-06 | 松下电器产业株式会社 | Aluminum electrolytic capacitor |
| CN1707710A (en) * | 2005-04-11 | 2005-12-14 | 万裕三信电子(东莞)有限公司 | Aluminium electrolytic capacitor and electrolyte |
| CN101399123A (en) * | 2007-09-27 | 2009-04-01 | 厚生股份有限公司 | Processing method for roll aluminium electrolysis capacitor insulation sheet rubber |
| CN201532858U (en) * | 2009-10-29 | 2010-07-21 | 深圳江浩电子有限公司 | Aluminum electrolytic capacitor cover plate and aluminum electrolytic capacitor thereof |
| CN202523570U (en) * | 2012-03-02 | 2012-11-07 | 深圳东佳电子有限公司 | Aluminum electrolytic capacitor cover plate with high security and long service life |
| CN102702628A (en) * | 2012-06-15 | 2012-10-03 | 浙江省天台祥和实业有限公司 | Method for producing rubber sealing plug composition for aluminum electrolytic capacitor by using butyl rubber as main material |
| CN202616053U (en) * | 2012-06-25 | 2012-12-19 | 南通新三能电子有限公司 | Large shock-resistant aluminum electrolytic capacitor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261479A (en) * | 2015-09-07 | 2016-01-20 | 湖南艾华集团股份有限公司 | Multi-element capacitor |
| CN105405649A (en) * | 2015-11-13 | 2016-03-16 | 太仓荣中机电科技有限公司 | Waterproof capacitor |
| CN106449115A (en) * | 2016-10-31 | 2017-02-22 | 丰宾电子（深圳）有限公司 | Charging-and-discharging-resistant aluminum electrolytic capacitor used for charging pile and application thereof |
| CN107578922A (en) * | 2017-09-21 | 2018-01-12 | 南通新三能电子有限公司 | A kind of welding needle type aluminium electrolutic capacitor and its manufacture method |
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Owner name: GUANGXI JIGUANG ELECTRONICS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN NICON JIFENG ELECTRONIC CO., LTD. Effective date: 20150327 |
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Effective date of registration: 20150327 Address after: 542800 the Guangxi Zhuang Autonomous Region Hezhou Ping Road (behind Guidong Electronics) Applicant after: GUANGXI JIGUANG ELECTRONIC TECHNOLOGY CO., LTD. Address before: 518000 Guangdong city of Shenzhen province Luohu District Rosero Huaqingyuan D building 803 Applicant before: Shenzhen Nicon Electronics Co., Ltd. |
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Application publication date: 20131211 |