CN105428087A - Ultrathin square capacitor and manufacturing method thereof - Google Patents
Ultrathin square capacitor and manufacturing method thereof Download PDFInfo
- Publication number
- CN105428087A CN105428087A CN201610020027.6A CN201610020027A CN105428087A CN 105428087 A CN105428087 A CN 105428087A CN 201610020027 A CN201610020027 A CN 201610020027A CN 105428087 A CN105428087 A CN 105428087A
- Authority
- CN
- China
- Prior art keywords
- square
- electrolyte
- core
- capacitor
- core bag
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000011888 foil Substances 0.000 claims abstract description 40
- 239000003792 electrolyte Substances 0.000 claims abstract description 35
- 239000000945 filler Substances 0.000 claims abstract description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- -1 dicarboxylic acids ammonium salt Chemical class 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- GJYJYFHBOBUTBY-UHFFFAOYSA-N alpha-camphorene Chemical compound CC(C)=CCCC(=C)C1CCC(CCC=C(C)C)=CC1 GJYJYFHBOBUTBY-UHFFFAOYSA-N 0.000 claims description 3
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 abstract description 22
- 229910000831 Steel Inorganic materials 0.000 abstract 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 4
- 239000010959 steel Substances 0.000 abstract 4
- 238000005253 cladding Methods 0.000 abstract 3
- 239000004411 aluminium Substances 0.000 description 16
- 101100230509 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) hat-1 gene Proteins 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Disclosed is an ultrathin square capacitor. The ultrathin square capacitor comprises a square steel casing, a flat core cladding and a fixation filler, wherein the fixation filler seals and fixes the flat core cladding into the square steel casing; the thickness of the square steel casing is 2 to 5mm; the flat core cladding comprises anode foil, cathode foil, electrolytic paper, an anode lead wire and a cathode lead wire, the electrolytic paper is disposed between the anode foil and the cathode foil, and the anode lead wire and the cathode lead wire are respectively fixedly connected with the anode foil and the cathode foil and extend out of the square steel casing; and the electrolytic paper is immersed with an electrolyte. The thickness of the square aluminum electrolytic capacitor provided by the invention is much smaller than the diameter of a conventional cylindrical capacitor under the condition of same capacitance. Besides, the square aluminum electrolytic capacitor occupies less space in a thickness direction, improves volume capacity density of the capacitor and improves the utilization rate of space.
Description
Technical field
The present invention relates to electronic applications, particularly relate to a kind of square aluminum electrolytic capacitor and preparation method thereof.
Background technology
At present, the aluminium electrolytic capacitor that market can be seen is cylindrical structural design, and this kind of capacitor core bag is obtained by nail volume machine winding, is cylindrical core bag, insert in cylindrical aluminium shell vertical through group with a tight waist after cylindrical core being comprised leaching electrolyte, obtained cylindrical capacitor.But some application scenario, for reducing the volume of integrated circuit, improve volume utilization, a flat space can only be stayed to place aluminium electrolytic capacitor, and the space of cylindrical structural aluminium electrolytic capacitor surrounding can not be utilized effectively, lower at the volume utilization in flat space.On the other hand, under the operating mode of high ripple current, capacitor internal easily gathers heat, if heat can not effectively be gone out in dissipation, can affect properties of product.Due to the design feature of capacitor itself, the radial thermal resistance of cylindrical capacitor is large, and rate of heat dispation is comparatively slow, if make flat square structure, thickness is less, and rate of heat dispation is fast, the performance of favourable electricity container performance.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides a kind of and take up room rationally, the square aluminum electrolytic capacitor and preparation method thereof of anode foils and Cathode Foil not frangibility.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is: a kind of ultra-thin square electric container, comprises square box hat, the core bag of flat and fixing filler; The sealing of the core bag of flat is fixed in square box hat by described fixing filler; The thickness of described square box hat is 2-5mm; Described flat core handbag draws together anode foils, Cathode Foil, electrolytic paper, positive wire and negative wire, described electrolytic paper is between anode foils and Cathode Foil, and described positive wire and negative wire to be fixedly connected on respectively in anode foils and Cathode Foil and to stretch out square box hat; Containing being soaked with electrolyte on described electrolytic paper, described electrolyte comprises long linear dicarboxylic acids ammonium salt solute and paranitrobenzoic acid, ammonium hypophosphite as additive.
Above-mentioned ultra-thin square electric container, preferably, described long linear dicarboxylic acids ammonium salt solute comprises ethylene glycol solvent and ammonium sebacate.
Above-mentioned ultra-thin square electric container, preferably, described fixing filler is one or more in epoxide-resin glue, UV glue and epoxy thermosetting glue.
Above-mentioned ultra-thin square electric container, preferably, comprises the following steps: 1) be fixedly connected in anode foils and Cathode Foil respectively by positive wire and negative wire;
2) one deck electrolytic paper is padded being connected with between the anode foils of positive wire and the Cathode Foil being connected with negative wire; And be wound into the core bag of flat on the winder;
3) core is comprised leaching electrolyte, getting square electric container core is wrapped in the beaker cleaned up in advance, electrolyte is poured in beaker, electrolyte content in beaker is poured in control into makes electrolyte cover all square capacitor core bags, again the beaker filling electrolyte and square electric container core bag is placed in vacuum drying chamber, adjustment vacuum degree is 100 ~ 133Pa, vacuum impregnation 30 ~ 50min, finally take out beaker, to be placed in low speed centrifuge containing the square electric container core bag being soaked with electrolyte, arranging centrifuge speed is 400 ~ 600 turns/min, centrifugal 5 ~ 10min, core is wrapped unnecessary electrolyte to get rid of, obtain the square electric container core bag containing being soaked with electrolyte,
4) will be transferred in square box hat containing the core bag being soaked with electrolyte;
5) fixing filler is filled between core bag and square box hat.
Compared with prior art, the invention has the advantages that: square aluminum electrolytic capacitor of the present invention Thickness Ratio general cylindrical capacitor diameter under equal electric capacity is little many, the space that square aluminum electrolytic capacitor of the present invention takies in a thickness direction is few, improve the volume capacity density that ensure that capacitor, improve the utilance to space.Core bag of the present invention is sealed in square box hat by fixing filler, and the capacitor of the present invention being simple for assembly process and the situation not having a leakage occur.
The present invention meets the demand that aluminium electrolytic capacitor is placed in flat space, increase space availability ratio and optimize capacitor heat radiation, devise a kind of aluminium electrolytic capacitor of square structure, this kind of square structure aluminium electrolytic capacitor thickness (width) is little, length is large, highly can be identical with cylindrical structural aluminium electrolytic capacitor, while ensureing aluminium electrolytic capacitor volume capacity density requirements, meet the demand that aluminium electrolytic capacitor is placed in flat space.
Accompanying drawing explanation
Fig. 1 is the structural representation of ultra-thin square solid state capacitor in the present invention.
Fig. 2 is the sectional structure schematic diagram of SMIS bag of the present invention.
Marginal data
1, square box hat; 2, core bag; 3, positive wire; 4, negative wire; 5, anode foils; 6, Cathode Foil; 7, electrolytic paper; 8, fixing filler.
Embodiment
For the ease of understanding the present invention, hereafter will do to describe more comprehensively, meticulously to the present invention in conjunction with Figure of description and preferred embodiment, but protection scope of the present invention is not limited to following specific embodiment.
It should be noted that, when a certain element is described on " be fixed on, be fixed in, be connected to or be communicated in " another element, it can be directly fixing, affixed, connect or be communicated with on another element, also can be by other intermediate connectors indirectly fixing, affixed, connection or connection on another element.
Unless otherwise defined, hereinafter used all technical terms are identical with the implication that those skilled in the art understand usually.The object of technical term used herein just in order to describe specific embodiment is not be intended to limit the scope of the invention.
Embodiment 1
The ultra-thin square electric container of one as depicted in figs. 1 and 2, comprises square box hat 1, the core bag 2 of flat and fixing filler 8; The sealing of the core bag 2 of flat is fixed in square box hat 1 by fixing filler 8; The thickness of square box hat 1 is 2-5mm; Flat core bag 2 comprises anode foils 5, Cathode Foil 6, electrolytic paper 7, positive wire 3 and negative wire 4, electrolytic paper 7 is between anode foils 5 and Cathode Foil 6, and positive wire 3 and negative wire 4 to be fixedly connected on respectively in anode foils 5 and Cathode Foil 6 and to stretch out square box hat 1.Containing being soaked with electrolyte on electrolytic paper 7, electrolyte comprises ethylene glycol solvent and ammonium sebacate solvent isometric straight-chain dicarboxylic acid's ammonium salt solute and the additive such as paranitrobenzoic acid, ammonium hypophosphite.In the present embodiment, fixing filler 8 is one or more in epoxide-resin glue, UV glue and epoxy thermosetting glue.
Its manufacture method of the ultra-thin square electric container of the present embodiment, comprises the following steps: 1) be fixedly connected in anode foils 5 and Cathode Foil 6 respectively by positive wire 3 and negative wire 4;
2) one deck electrolytic paper 7 is padded being connected with between the anode foils 5 of positive wire 3 and the Cathode Foil 6 being connected with negative wire 4; And be wound into the core bag 2 of flat on the winder;
3) by core bag 2 impregnation electrolyte, getting square electric container core is wrapped in the beaker cleaned up in advance, electrolyte is poured in beaker, electrolyte content in beaker is poured in control into makes electrolyte cover all square capacitor core bags, again the beaker filling electrolyte and square electric container core bag is placed in vacuum drying chamber, adjustment vacuum degree is 100 ~ 133Pa, vacuum impregnation 30 ~ 50min, finally take out beaker, to be placed in low speed centrifuge containing the square electric container core bag being soaked with electrolyte, arranging centrifuge speed is 400 ~ 600 turns/min, centrifugal 5 ~ 10min, core is wrapped unnecessary electrolyte to get rid of, obtain the square electric container core bag containing being soaked with electrolyte,
4) be transferred in square box hat 1 by containing the core bag 2 being soaked with electrolyte;
5) fixing filler 8 is filled between core bag 2 and square box hat 1.
The present embodiment is meet the demand that aluminium electrolytic capacitor is placed in flat space, increase space availability ratio and optimize capacitor heat radiation, devise a kind of aluminium electrolytic capacitor of square structure, this kind of square structure aluminium electrolytic capacitor thickness (width) is little, length is large, highly can be identical with cylindrical structural aluminium electrolytic capacitor, while ensureing aluminium electrolytic capacitor volume capacity density requirements, meet the demand that aluminium electrolytic capacitor is placed in flat space.
Claims (4)
1. a ultra-thin square electric container, is characterized in that: comprise square box hat, the core bag of flat and fixing filler; The sealing of the core bag of flat is fixed in square box hat by described fixing filler; The thickness of described square box hat is 2-5mm; Described flat core handbag draws together anode foils, Cathode Foil, electrolytic paper, positive wire and negative wire, described electrolytic paper is between anode foils and Cathode Foil, and described positive wire and negative wire to be fixedly connected on respectively in anode foils and Cathode Foil and to stretch out square box hat; Containing being soaked with electrolyte on described electrolytic paper, described electrolyte comprises long linear dicarboxylic acids ammonium salt solute and paranitrobenzoic acid, ammonium hypophosphite as additive.
2. ultra-thin square electric container according to claim 1, is characterized in that: described long linear dicarboxylic acids ammonium salt solute comprises ethylene glycol solvent and ammonium sebacate.
3. ultra-thin square electric container according to claim 1, is characterized in that: described fixing filler is one or more in epoxide-resin glue, UV glue and epoxy thermosetting glue.
4. ultra-thin square electric container according to any one of claim 1-3 and preparation method thereof, is characterized in that, comprise the following steps: 1) be fixedly connected in anode foils and Cathode Foil respectively by positive wire and negative wire;
2) one deck electrolytic paper is padded being connected with between the anode foils of positive wire and the Cathode Foil being connected with negative wire; And be wound into the core bag of flat on the winder;
3) core is comprised leaching electrolyte, getting square electric container core is wrapped in the beaker cleaned up in advance, electrolyte is poured in beaker, electrolyte content in beaker is poured in control into makes electrolyte cover all square capacitor core bags, again the beaker filling electrolyte and square electric container core bag is placed in vacuum drying chamber, adjustment vacuum degree is 100 ~ 133Pa, vacuum impregnation 30 ~ 50min, finally take out beaker, to be placed in low speed centrifuge containing the square electric container core bag being soaked with electrolyte, arranging centrifuge speed is 400 ~ 600 turns/min, centrifugal 5 ~ 10min, core is wrapped unnecessary electrolyte to get rid of, obtain the square electric container core bag containing being soaked with electrolyte,
4) will be transferred in square box hat containing the core bag being soaked with electrolyte;
5) fixing filler is filled between core bag and square box hat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020027.6A CN105428087A (en) | 2016-01-13 | 2016-01-13 | Ultrathin square capacitor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020027.6A CN105428087A (en) | 2016-01-13 | 2016-01-13 | Ultrathin square capacitor and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428087A true CN105428087A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020027.6A Pending CN105428087A (en) | 2016-01-13 | 2016-01-13 | Ultrathin square capacitor and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428087A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448994A (en) * | 2018-11-29 | 2019-03-08 | 肇庆绿宝石电子科技股份有限公司 | A kind of patch type aluminium electrolutic capacitor |
| CN109448995A (en) * | 2018-11-29 | 2019-03-08 | 肇庆绿宝石电子科技股份有限公司 | A kind of patch type aluminium electrolutic capacitor |
| CN110993379A (en) * | 2019-12-09 | 2020-04-10 | 章周华 | Full-automatic capacitor soaking machine capable of removing residues through semi-centrifugation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629232U (en) * | 2009-12-09 | 2010-11-10 | 钰邦电子（无锡）有限公司 | Novel structure of capacitor |
| US20110122545A1 (en) * | 2009-11-20 | 2011-05-26 | Sanyo Electric Co., Ltd. | Solid electrolytic capacitor and method of manufacturing thereof |
| CN103943363A (en) * | 2014-05-06 | 2014-07-23 | 广东风华高新科技股份有限公司 | Electrolyte of aluminum electrolytic capacitor, preparation method thereof and aluminum electrolytic capacitor |
| CN104658758A (en) * | 2015-02-05 | 2015-05-27 | 深圳江浩电子有限公司 | Flat aluminum electrolytic capacitor and manufacturing method thereof |
-
2016
- 2016-01-13 CN CN201610020027.6A patent/CN105428087A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110122545A1 (en) * | 2009-11-20 | 2011-05-26 | Sanyo Electric Co., Ltd. | Solid electrolytic capacitor and method of manufacturing thereof |
| CN201629232U (en) * | 2009-12-09 | 2010-11-10 | 钰邦电子（无锡）有限公司 | Novel structure of capacitor |
| CN103943363A (en) * | 2014-05-06 | 2014-07-23 | 广东风华高新科技股份有限公司 | Electrolyte of aluminum electrolytic capacitor, preparation method thereof and aluminum electrolytic capacitor |
| CN104658758A (en) * | 2015-02-05 | 2015-05-27 | 深圳江浩电子有限公司 | Flat aluminum electrolytic capacitor and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448994A (en) * | 2018-11-29 | 2019-03-08 | 肇庆绿宝石电子科技股份有限公司 | A kind of patch type aluminium electrolutic capacitor |
| CN109448995A (en) * | 2018-11-29 | 2019-03-08 | 肇庆绿宝石电子科技股份有限公司 | A kind of patch type aluminium electrolutic capacitor |
| CN110993379A (en) * | 2019-12-09 | 2020-04-10 | 章周华 | Full-automatic capacitor soaking machine capable of removing residues through semi-centrifugation |
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| C06 | Publication | ||
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Application publication date: 20160323 |