CN107195460A - A kind of aluminium electrolutic capacitor of new anti-lightning and preparation method thereof - Google Patents
A kind of aluminium electrolutic capacitor of new anti-lightning and preparation method thereof Download PDFInfo
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- CN107195460A CN107195460A CN201710524720.1A CN201710524720A CN107195460A CN 107195460 A CN107195460 A CN 107195460A CN 201710524720 A CN201710524720 A CN 201710524720A CN 107195460 A CN107195460 A CN 107195460A
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- electrolytic paper
- cathode foil
- anode foils
- internal layer
- lightning
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- 239000003990 capacitor Substances 0.000 title claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 32
- 239000004411 aluminium Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000011888 foil Substances 0.000 claims abstract description 69
- 239000003792 electrolyte Substances 0.000 claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 30
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 claims description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 18
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 244000025254 Cannabis sativa Species 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 10
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 claims description 10
- 238000005868 electrolysis reaction Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229940051250 hexylene glycol Drugs 0.000 claims description 9
- 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 8
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 239000000565 sealant Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 5
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical group C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical class CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/003—Apparatus or processes for encapsulating capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/02—Machines for winding capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention provides a kind of aluminium electrolutic capacitor of new anti-lightning and preparation method thereof, its core bag is soaked with electrolyte of the flash over voltage in more than 490V, the core bag is by anode foils, Cathode Foil and electrolytic paper it is overlapping and wind form, the phase homonymy of wherein Cathode Foil and anode foils is respectively arranged with the electrolytic paper as substrate, encapsulated layer is provided with the negative electrode guide needle with the positive pole guide pin of anode foils nail joint and with Cathode Foil nail joint, the electrolytic paper includes internal layer electrolytic paper and outer layer electrolytic paper, the internal layer electrolytic paper is located on the inside of corresponding Cathode Foil or anode foils, the internal layer electrolytic paper is consistent with the tightness of outer layer electrolytic paper.The present invention effectively increases the overall proof voltage ability of product so that the resistance to instantaneous pressure capability improving of aluminium electrolutic capacitor is to 2.2KV, with strong shock resistance, the high effect that can guarantee that the life-span again of security performance.
Description
Technical field
The present invention relates to technical field of electrolytic, more particularly to a kind of new anti-lightning aluminium electrolutic capacitor and its
Preparation method.
Background technology
Existing alminium electrolytic condenser is typically employed in illumination or daily household electrical appliance in use, it goes out because of sudden bad weather
When existing lightning hits transmission line of electricity, it may appear that resident produces the high voltage surge of moment with transmission line of electricity, can make electric lighting or family
The general electrolytic electric capacity of the circuits such as electricity occurs puncturing, explode or rousing the bad phenomenons such as bottom because of overvoltage, makes electric property abnormal,
Even cause the damage of electrical equipment.
Electrochemical capacitor is one of component for largely using in electronic equipment, extensively using and the separated by direct communication in circuit,
Coupling, is bypassed, filtering, resonant tank, energy conversion, in terms of control, but common alminium electrolytic condenser, generally specified to use
Voltage is in 500WV, and anti-moment big voltage is not over 1000V, when moment, big voltage was more than 1000V, and capacitor will appear from damaging
Bad explosion.
CN102226978A discloses a kind of anti-lightning guide pin type safety aluminium electrolutic capacitor, and its electrolytic paper is tied using double-deck
Structure, wherein internal layer electrolytic paper ensure that Cathode Foil and anode foils surface electrolyte are sufficient using the good material of low tightness absorbency,
Outer layer electrolytic paper improves the high voltage withstanding impact capacity of electrolysis ply of paper using the material of high tightness electrolytic paper, and then adds aluminium
The high pressure resistant impact capacity of electrolytic capacitor.But the aluminium electrolutic capacitor can only bear the above-mentioned instantaneous pressure impacts of 1KV, be
Higher instantaneous pressure impact can not be born.In its electrolytic paper double-decker, internal layer electrolytic paper is due to using low tightness imbibition
Property good material ensure that Cathode Foil and anode foils surface electrolyte is sufficient but high voltage withstanding impact capacity is not strong, and outer layer is electrolysed
Paper improves the high voltage withstanding impact capacity of electrolysis ply of paper but to the absorption property of electrolyte using the material of high tightness electrolytic paper
Power is not enough, easily causes capacitor life-span premature failure.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention provide a kind of new anti-lightning aluminium electrolutic capacitor and its
Preparation method, effectively increases the overall proof voltage ability of product so that the resistance to instantaneous pressure capability improving of aluminium electrolutic capacitor
To 2.2KV, with higher instantaneous pressure can be born can guarantee that the effect in life-span again.
The technical problems to be solved by the invention are achieved by the following technical programs：
A kind of aluminium electrolutic capacitor of new anti-lightning, including housing, be coated on the sebific duct of hull outside and be sleeved on housing
Interior core bag, the core side of wrapping and is provided with encapsulated layer at the opening of housing, and described core bag is soaked with flash over voltage and exists
More than 490V electrolyte, the core bag is by anode foils, Cathode Foil and electrolytic paper is overlapping and winding is formed, wherein Cathode Foil and sun
The phase homonymy of pole paper tinsel is respectively arranged with the electrolytic paper as substrate, and encapsulated layer is provided with the positive pole guide pin with anode foils nail joint
With the negative electrode guide needle with Cathode Foil nail joint, the electrolytic paper includes internal layer electrolytic paper and outer layer electrolytic paper, the internal layer electrolytic paper
On the inside of corresponding Cathode Foil or anode foils, the internal layer electrolytic paper is consistent with the tightness of outer layer electrolytic paper.
Further, the tightness of the internal layer electrolytic paper is not less than 0.95g/cm3, the tightness of outer layer electrolytic paper is not less than
0.95g/cm3。
Further, the internal layer electrolytic paper material is Spanish grass (Esparto).
Further, the outer layer electrolytic paper material is Spanish grass (Esparto).
Further, the thickness of the internal layer electrolytic paper is 50 μm, and the thickness of the outer layer electrolytic paper is 50 μm.
Further, the encapsulated layer is seal rubber plug or synthetic rubber.
Further, the electrolyte includes the composition of following percentage by weight：Hexylene glycol 30%-35%, pure water 0.7-
1.2%th, the sour ammonium 1.5-2.2% of ammonium sebacate 0.7-1.5%, five rocs, isosebacic acid ammonium 5-8%, paranitrobenzoic acid 0.52-0.70%,
Ortho phosphorous acid 0.9-1.5%, citric acid 2%, diethylene glycol (DEG) 2%.
The present invention also provides the preparation method of the aluminium electrolutic capacitor of above-mentioned new anti-lightning, comprises the following steps and obtains：
1) cut, cut Cathode Foil, anode foils and electrolytic paper；
2) nail is around through encapsulated layer by positive pole guide pin and anode foils nail joint, by negative electrode guide needle and Cathode Foil nail joint, by electrolytic paper
It is laminated with Cathode Foil, anode foils, and is wound into together with anode foils and Cathode Foil core bag；Wherein electrolytic paper includes internal layer electrolytic paper
With outer layer electrolytic paper, internal layer electrolytic paper is located on the inside of corresponding Cathode Foil or anode foils, internal layer electrolytic paper and the outer layer electrolysis
The tightness of paper is consistent；
3) it is circulating vacuumize, impregnation of pressurizeing：Core bag is immersed into electrolyte, negative pressure and malleation periodically are loaded to it, make electrolysis
Liquid is sufficiently impregnated on electrolytic paper；
4) assemble, the core bag impregnated and housing and encapsulated layer are constituted into naked product capacitor；
5) sleeve pipe, sebific duct is put by naked product capacitor；
6) aging；
7) characteristic test.
Further, the electrolyte includes the composition of following percentage by weight：Hexylene glycol 30%-35%, pure water 0.7-
1.2%th, the sour ammonium 1.5-2.2% of ammonium sebacate 0.7-1.5%, five rocs, isosebacic acid ammonium 5-8%, paranitrobenzoic acid 0.52-0.70%,
Ortho phosphorous acid 0.9-1.5%, citric acid 2%, diethylene glycol (DEG) 2%.
The present invention has the advantages that：
The electrolytic paper of the aluminium electrolutic capacitor of the present invention uses double-decker, and wherein internal layer electrolytic paper and outer layer electrolytic paper is used
High voltage withstanding impact capacity is strong and electrolytic paper of electrolyte high adsorption capacity, while core bag is soaked with the electrolysis of specific composition and proportioning
Liquid, by the improvement to processing step and condition, overall coordination effectively increases the overall proof voltage ability of product so that aluminium
The resistance to instantaneous pressure capability improving of electrolytic capacitor is to 2.2KV, with strong shock resistance, and security performance is high to can guarantee that the life-span again
Effect.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the double-deck electrolysis paper structure diagrammatic cross-section of the present invention.
In figure：1- sebific ducts；2- housings；31- negative electrode guide needles；32- positive pole guide pins；4- encapsulated layers；5- electrolytic papers；51- internal layers
Electrolytic paper；52- outer layer electrolytic papers；6- anode foils；7- Cathode Foils.
Embodiment
Electrolyte is used as the core component of aluminium electrolutic capacitor, service life, reliability and the corresponding electricity of capacitor
The parameter that gasifies is all closely bound up with electrolyte, and the quality of its performance directly influences the height of capacitor product quality.The present invention
People is improved to the composition and proportioning of electrolyte, by the multiple experimental study of inventor, inventor it was unexpectedly found that,
Using electrolyte of the invention specific, while the phase homonymy in Cathode Foil and anode foils is respectively arranged with electrolysis as substrate
Paper, electrolytic paper includes internal layer electrolytic paper and outer layer electrolytic paper, and the internal layer electrolytic paper is located in corresponding Cathode Foil or anode foils
Side, internal layer electrolytic paper and outer layer electrolytic paper use high voltage withstanding impact capacity strong and electrolyte high adsorption capacity electrolytic paper,
The internal layer electrolytic paper is consistent with the tightness of outer layer electrolytic paper, takes such scheme to cause the resistance to moment of aluminium electrolutic capacitor
High pressure capability improving is to 2.2KV, with strong shock resistance, the high effect that can guarantee that the life-span again of security performance.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1
A kind of preparation method of the aluminium electrolutic capacitor of new anti-lightning, step is as follows：
1) cut, cut Cathode Foil, anode foils and electrolytic paper, wherein above-mentioned electrolytic paper includes internal layer electrolytic paper and outer layer is electrolysed
Paper, internal layer electrolytic paper is located on the inside of corresponding Cathode Foil or anode foils, the tightness one of the internal layer electrolytic paper and outer layer electrolytic paper
Cause；
2) nail around, through encapsulated layer by positive pole guide pin and negative electrode guide needle respectively with anode foils and Cathode Foil nail joint, by electrolytic paper, the moon
Pole paper tinsel, anode foils are laminated into the layer structure of electrolytic paper-Cathode Foil-electrolytic paper-anode foils, then the layer structure is wound into core
Bag, wherein above-mentioned electrolytic paper includes internal layer electrolytic paper and outer layer electrolytic paper, internal layer electrolytic paper is located at corresponding Cathode Foil or anode
Paper tinsel side；The tightness of the internal layer electrolytic paper is not less than 0.95g/cm3, the internal layer electrolytic paper material is Spanish grass (Esparto)；It is described
The tightness of outer layer electrolytic paper is not less than 0.95g/cm3,The outer layer electrolytic paper material is Spanish grass (Esparto)；The internal layer electrolytic paper
Thickness is 50 μm, and the thickness of the outer layer electrolytic paper is 50 μm；
3) it is circulating vacuumize, impregnation of pressurizeing：Core bag is immersed by the electrolyte hotted plate, periodically it is loaded negative pressure and
Malleation, makes electrolyte be sufficiently impregnated on electrolytic paper；
The electrolyte includes the composition of following percentage by weight：The sour ammonium of hexylene glycol 32%, pure water 1%, ammonium sebacate 1%, five rocs
1.8%th, isosebacic acid ammonium 6%, paranitrobenzoic acid 0.6%, ortho phosphorous acid 1.2%, citric acid 2%, diethylene glycol (DEG) 2%；
The method that the electrolyte is hotted plate is：1) hexylene glycol and pure water are first heated to 70-90 DEG C；
2) the sour ammonium of ammonium sebacate, five rocs, isosebacic acid ammonium are added in above-mentioned solvent；
3) solution is continued to be heated to 136-145 DEG C；
4) paranitrobenzoic acid, ortho phosphorous acid, citric acid, diethylene glycol (DEG) are added and is allowed to be completely dissolved；
5) natural cooling；
4) assemble, the core bag impregnated and housing and encapsulated layer are constituted into naked product capacitor；
5) sleeve pipe, sebific duct is put by naked product capacitor；
6) aging；
7) characteristic test.
Embodiment 2
The present embodiment is identical substantially with implementing 1, unlike, in the present embodiment, the composition of the electrolyte includes：Hexylene glycol
30%%th, the sour ammonium 1.5% of pure water 0.7%, ammonium sebacate 0.7%, five rocs, isosebacic acid ammonium 5%, paranitrobenzoic acid 0.52%, secondary phosphorous
Acid 0.9%, citric acid 2%, diethylene glycol (DEG) 2%.
Embodiment 3
The present embodiment is identical substantially with implementing 1, unlike, in the present embodiment, the composition of the electrolyte includes：Hexylene glycol
35%th, the sour ammonium 2.2% of pure water 1.2%, ammonium sebacate 1.5%, five rocs, isosebacic acid ammonium 8%, paranitrobenzoic acid 0.70%, secondary phosphorous
Acid 1.5%, citric acid 2%, diethylene glycol (DEG) 2%.
Comparative example 1
Substantially it is same as Example 1, unlike, in this comparative example, internal layer electrolytic paper is 40 μm by thickness, and tightness is 0.3 g/
cm3Abaca make；Outer layer electrolytic paper is 60 μm from thickness, and tightness is 0.6 g/cm3Brown paper.
Comparative example 2
Substantially it is same as Example 1, unlike, in this comparative example, internal layer electrolytic paper and outer layer electrolytic paper are low tightness
Electrolytic paper, tightness as little as 0.7 g/cm of the electrolytic paper3。
Comparative example 3
Substantially it is same as Example 1, unlike, in this comparative example, the composition of the electrolyte includes：65%-78% N,
N- dimethylformamides, 1-1.5% pure water, 0.8-2.3% ammonium sebacate, 2.0-4.5% monoethanolamine, 2.3-2.7%
Ammonium dihydrogen phosphate, 1.2-2.5% ortho phosphorous acid, 2% citric acid and 2% diethylene glycol (DEG).
Test example
Embodiment 1-3 and comparative example 1-3 each 20 of aluminium electrolutic capacitor is made, resistance to instantaneous pressure and service life inspection is carried out
Survey, testing result shows, the resistance to instantaneous pressure ability of the aluminium electrolutic capacitor in embodiment 1-3 be respectively 2200V, 2100V,
The resistance to instantaneous pressure ability of aluminium electrolutic capacitor in 2150 V, comparative example 1-3 is respectively 950V, 900V, 820 V；Life-span surveys
Examination（105 DEG C, 400V load, 5000 hours）Afterwards, capacity, ESR, leakage current of aluminium electrolutic capacitor in embodiment 1-3 etc. is surveyed
Try index smaller compared with test index fluctuation at initial stage, and each test index fluctuation of the aluminium electrolutic capacitor in comparative example 1-3
It is larger.
Embodiment 4
Refering to Fig. 1-2, a kind of aluminium electrolutic capacitor of new anti-lightning, including housing 2, be coated on hull outside sebific duct 1, with
And it is sleeved on the core bag in housing, the core side of wrapping and encapsulated layer 4 is provided with the opening of housing 2, the core bag is by sun
Pole paper tinsel 6, Cathode Foil 7 and electrolytic paper 5 it is overlapping and wind form, the phase homonymy of wherein Cathode Foil 7 and anode foils 6 is respectively arranged with work
For the electrolytic paper 5 of substrate, it is provided with and the positive pole guide pin 32 of the nail joint of anode foils 6 and negative with the nail joint of Cathode Foil 7 through encapsulated layer 4
Pole guide pin 31.
The electrolytic paper 5 includes internal layer electrolytic paper 51 and outer layer electrolytic paper 52, and the internal layer electrolytic paper 51 is located at corresponding
Cathode Foil 7 or the inner side of anode foils 6, the internal layer electrolytic paper 51 are consistent with the tightness of outer layer electrolytic paper 52.Preferably, in described
The tightness of layer electrolytic paper 51 is not less than 0.95g/cm3, the tightness of outer layer electrolytic paper 52 is not less than 0.95g/cm3.It is highly preferred that institute
The material of internal layer electrolytic paper 51 is stated for Spanish grass (Esparto), the material of outer layer electrolytic paper 52 is Spanish grass (Esparto).The present invention is creatively selected
Spanish grass (Esparto) is selected as the material of electrolytic paper 5, difference of the Spanish grass (Esparto) due to its fibre structure and the technique of papermaking compared with brown paper,
Under identical electrolytic paper thickness, the ability of its high voltage withstanding impact is strong and ability of electrolyte absorption is excellent compared with brown paper.
Specifically, for voltage endurance capability, Spanish grass (Esparto) is 250V/ μm, and brown paper is 150V/ μm；The ability adsorbed for electrolyte（It is vertical
To suction range）, Spanish grass (Esparto) is 10mm/10min, and brown paper is 7mm/10min.Internal layer electrolytic paper 51 and outer layer electricity of the present invention
The material for solving paper 52 is Spanish grass (Esparto), and high voltage withstanding impact capacity is strong and electrolytic paper of electrolyte high adsorption capacity, makes electric capacity
Device can bear higher instantaneous pressure and can guarantee that the life-span again.In specific implementation, the thickness of the internal layer electrolytic paper 51 is 50 μm, institute
The thickness for stating outer layer electrolytic paper 52 is 50 μm.
Described core bag is soaked with electrolyte of the flash over voltage in more than 490V.Specifically, the electrolyte is by weight percentage
Constitute as follows：1) solvent：Including main solvent, 30%-35% hexylene glycol, 0.7-1.2% pure water；2) solute：Including 0.7-1.5%
The sour ammonium of five rocs of ammonium sebacate and 1.5-2.2%, 5-8% isosebacic acid ammoniums；3) additive：Including 0.52-0.70% to nitre
The ortho phosphorous acid of yl benzoic acid and 0.9-1.5%；4) flash over voltage elevator：Diethylene glycol (DEG) including 2% citric acid and 2%.
In specific implementation, the encapsulated layer 4 is seal rubber plug or synthetic rubber.Preferably, the seal rubber plug is insulation
More than voltage 500V butyl rubber, described housing is in the sebific duct 1 that dielectric strength is more than 10KV/mm.
Embodiment described above only expresses embodiments of the present invention, therefore it describes more specific and detailed, but can not be
And the limitation to the scope of the claims of the present invention is interpreted as, as long as the technical side obtained using the form of equivalent substitution or equivalent transformation
Case, all should fall within the scope and spirit of the invention.
Claims (9)
1. a kind of aluminium electrolutic capacitor of new anti-lightning, including housing, it is coated on the sebific duct of hull outside and is sleeved on shell
Internal core bag, the core side of wrapping and positioned at housing opening at be provided with encapsulated layer, it is characterised in that described core bag is soaked with
Flash over voltage is in more than 490V electrolyte, and the core bag is by anode foils, Cathode Foil and electrolytic paper is overlapping and winding is formed, wherein
The phase homonymy of Cathode Foil and anode foils is respectively arranged with the electrolytic paper as substrate, is provided with and anode foils nail joint through encapsulated layer
Positive pole guide pin and negative electrode guide needle with Cathode Foil nail joint, the electrolytic paper includes internal layer electrolytic paper and outer layer electrolytic paper, described
Internal layer electrolytic paper is located on the inside of corresponding Cathode Foil or anode foils, and the internal layer electrolytic paper is consistent with the tightness of outer layer electrolytic paper.
2. the aluminium electrolutic capacitor of new anti-lightning as claimed in claim 1, it is characterised in that the internal layer electrolytic paper it is tight
Degree is not less than 0.95g/cm3, the tightness of outer layer electrolytic paper is not less than 0.95g/cm3。
3. the aluminium electrolutic capacitor of new anti-lightning as claimed in claim 2, it is characterised in that the internal layer electrolytic paper material
For Spanish grass (Esparto).
4. the aluminium electrolutic capacitor of new anti-lightning as claimed in claim 2, it is characterised in that the outer layer electrolytic paper material
For Spanish grass (Esparto).
5. the aluminium electrolutic capacitor of new anti-lightning as claimed in claim 1, it is characterised in that the thickness of the internal layer electrolytic paper
Spend for 50 μm, the thickness of the outer layer electrolytic paper is 50 μm.
6. the aluminium electrolutic capacitor of new anti-lightning as claimed in claim 1, it is characterised in that the encapsulated layer is fluid sealant
Plug or synthetic rubber.
7. the aluminium electrolutic capacitor of new anti-lightning as claimed in claim 1, it is characterised in that the electrolyte includes as follows
The composition of percentage by weight：The sour ammonium 1.5- of hexylene glycol 30%-35%, pure water 0.7-1.2%, ammonium sebacate 0.7-1.5%, five rocs
2.2%th, isosebacic acid ammonium 5-8%, paranitrobenzoic acid 0.52-0.70%, ortho phosphorous acid 0.9-1.5%, citric acid 2%, diethylene glycol (DEG)
2%。
8. the preparation method of the aluminium electrolutic capacitor of the new anti-lightning as described in claim any one of 1-7, it is characterised in that
It comprises the following steps：
1) cut, cut Cathode Foil, anode foils and electrolytic paper；
2) nail is around through encapsulated layer by positive pole guide pin and anode foils nail joint, by negative electrode guide needle and Cathode Foil nail joint, by electrolytic paper
It is laminated with Cathode Foil, anode foils, and is wound into together with anode foils and Cathode Foil core bag；Wherein electrolytic paper includes internal layer electrolytic paper
With outer layer electrolytic paper, internal layer electrolytic paper is located on the inside of corresponding Cathode Foil or anode foils, internal layer electrolytic paper and the outer layer electrolysis
The tightness of paper is consistent；
3) it is circulating vacuumize, impregnation of pressurizeing：Core bag is immersed into electrolyte, negative pressure and malleation periodically are loaded to it, make electrolysis
Liquid is sufficiently impregnated on electrolytic paper；
4) assemble, the core bag impregnated and housing and encapsulated layer are constituted into naked product capacitor；
5) sleeve pipe, sebific duct is put by naked product capacitor；
6) aging；
7) characteristic test.
9. the preparation method of the aluminium electrolutic capacitor of new anti-lightning as claimed in claim 8, it is characterised in that the electrolysis
Liquid includes the composition of following percentage by weight：Hexylene glycol 30%-35%, pure water 0.7-1.2%, ammonium sebacate 0.7-1.5%, five rocs acid
Ammonium 1.5-2.2%, isosebacic acid ammonium 5-8%, paranitrobenzoic acid 0.52-0.70%, ortho phosphorous acid 0.9-1.5%, citric acid 2%, two
Glycol 2%.
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| CN107195460B CN107195460B (en) | 2022-10-18 |
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