CN206401185U - A kind of aluminium electrolutic capacitor - Google Patents
A kind of aluminium electrolutic capacitor Download PDFInfo
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- CN206401185U CN206401185U CN201720102201.1U CN201720102201U CN206401185U CN 206401185 U CN206401185 U CN 206401185U CN 201720102201 U CN201720102201 U CN 201720102201U CN 206401185 U CN206401185 U CN 206401185U
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- pin
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- aluminium foil
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Abstract
The utility model discloses a kind of aluminium electrolutic capacitor, including aluminum shell, fuse, rubber stopper and positive and negative electrode pin.Fuse includes two layers electrolytic paper, positive and negative electrode aluminium foil and positive and negative electrode pin stalk.Two layers of electrolytic paper has adsorbed electrolyte.Positive pole aluminium foil is located between two layers of electrolytic paper, and negative pole aluminium foil is fitted on the medial surface of internal layer electrolytic paper；Positive and negative electrode pin obstructs the lower end for being fixed on the medial surface of positive and negative electrode aluminium foil and being integrally attached to correspondingly positive and negative electrode pin correspondingly；Two layers electrolytic paper, positive and negative electrode aluminium foil are wound into after tubular and are placed in the inner chamber of aluminum shell；The medial surface of positive pole aluminium foil forms rough and uneven in surface using chemical corrosion method；The length of positive pole pin is more than the length of negative pin；The contact position that aluminum shell is obstructed with rubber stopper and positive and negative electrode pin suppresses a groove.Aluminium electrolutic capacitor of the present utility model, can prevent wrong both positive and negative polarity, and can be prevented effectively from the damage of capacitor.
Description
Technical field
The utility model is related to electronic component, more particularly to a kind of aluminium electrolutic capacitor.
Background technology
Electrochemical capacitor is one kind of electric capacity, can be divided into nonpolarity and polarized two types, metal foil be positive pole (aluminium or
Tantalum), the oxide-film (aluminum oxide or tantalum pentoxide) that metal is close to positive pole is dielectric, and negative electrode is by conductive material, electrolyte
(electrolyte can be liquid or solid) and other materials are collectively constituted, because electrolyte is the major part of negative electrode, electrochemical capacitor
Therefore gain the name.The both positive and negative polarity of electrochemical capacitor can not wrong simultaneously.Aluminium electrolutic capacitor why polarized, be because positive plate
On pellumina there is unilateral conduction, only connect the positive pole of power supply in the positive pole of capacitor, when negative pole connects the negative pole of power supply,
Pellumina can just play a part of dielectric.If by the reverse polarity connection of aluminium electrolutic capacitor, pellumina is reformed into
Conductor, electrolytic capacitor can not only play a role, and can also cause to overheat and damage capacitor because there is larger electric current to pass through.
The content of the invention
The purpose of this utility model is to provide a kind of aluminium electrolutic capacitor, and wrong is positive and negative when it can prevent access circuit
Pole, and the damage of capacitor can be prevented effectively from.
Realizing the technical scheme of above-mentioned purpose is：A kind of aluminium electrolutic capacitor, including aluminum shell, the core that is located in aluminum shell
Son, the positive pole pin and negative pin for being located at the rubber stopper of aluminum shell oral area and being drawn out of aluminum shell；Wherein,
The fuse includes two layers electrolytic paper, positive pole aluminium foil, negative pole aluminium foil, positive pole pin and obstructed and negative pin stalk, described
Two layers of electrolytic paper has adsorbed electrolyte；The positive pole aluminium foil is arranged between two layers of electrolytic paper, and the negative pole aluminium foil is fitted in
On the medial surface of internal layer electrolytic paper；Positive pole pin obstructs and negative pin obstructs the medial surface for being fixed on positive aluminium foil correspondingly and born
It is integrally attached on the medial surface of pole aluminium foil and correspondingly the lower end of the positive pole pin and negative pin；Two layers of electricity
Solution paper, positive pole aluminium foil, negative pole aluminium foil are wound into after tubular and are placed in the inner chamber of aluminum shell；
The medial surface of the positive pole aluminium foil forms rough and uneven in surface using chemical corrosion method；
The length of the positive pole pin stalk and the equal length of negative pin stalk；
The length of the positive pole pin is more than the length of negative pin；
The aluminum shell and the contact position of rubber stopper and positive pole pin stalk and negative pin stalk suppress a groove.
Above-mentioned aluminium electrolutic capacitor, wherein, length long 3~5mm of the length than negative pin of the positive pole pin.
Above-mentioned aluminium electrolutic capacitor, wherein, the outside of the aluminum shell is additionally provided with pyrocondensation gum cover pipe.
Aluminium electrolutic capacitor of the present utility model is had the characteristics that, the length of positive pole pin and negative pin is arranged to
Difference, positive pole pin and negative pin can be distinguished well, wrong both positive and negative polarity when preventing from accessing circuit, effectively prevent capacitor
Damage；A groove is suppressed in the contact position of aluminum shell and rubber stopper and positive pole pin stalk and negative pin stalk, can be prevented
Accidental explosion accident occurs when in use for capacitor；The medial surface of positive pole aluminium foil forms rough and uneven in surface using chemical corrosion method,
Increase the surface area of electrode, so that capacitance increase, the capacitance very big and small volume of unit volume.
Brief description of the drawings
Fig. 1 is the structural representation of aluminium electrolutic capacitor of the present utility model；
Fig. 2 is the structural representation after the fuse expansion of aluminium electrolutic capacitor of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1 and Fig. 2, aluminium electrolutic capacitor of the present utility model, including aluminum shell 1, fuse 2, rubber stopper 3, just
Pole pin 4 and negative pin 5.
The outside of aluminum shell 1 is provided with pyrocondensation gum cover pipe (not shown).
Fuse 2 is located in aluminum shell 1；Fuse 2 draws including two layers electrolytic paper 21, positive pole aluminium foil 22, negative pole aluminium foil 22, positive pole
Pin stalk 24 and negative pin stalk 25, wherein, two layers of electrolytic paper 21 has adsorbed electrolyte；Positive pole aluminium foil 22 is interposed in two layers of electrolysis
Between paper 21；Negative pole aluminium foil 23 is fitted on the medial surface of internal layer electrolytic paper 21；Positive pole pin stalk 24 and negative pin stalk 26 1
One is accordingly fixed on the medial surface of the medial surface of positive aluminium foil 22 and negative pole aluminium foil 23 and is integrally attached to correspondingly just
The lower end of pole pin 4 and negative pin 5；The length of positive pole pin stalk 24 and the equal length of negative pin stalk 25；By two layers of electricity
Solution paper 21, positive pole aluminium foil 22 and negative pole aluminium foil 23 are wound into tubular and are placed in the inner chamber of aluminum shell 1, make positive pole aluminium foil 22 and negative pole
There is one layer of electrolytic paper 21 to separate between aluminium foil 23.
The oral area that rubber stopper 3 is located at aluminum shell 1 is sealed to aluminum shell 1, it is ensured that electrolyte banyan liquid is not leaked, do not done
Dry up.
Positive pole pin 4 and negative pin 5 are drawn out of aluminum shell 1, for accessing welding during circuit.
The length of positive pole pin 4 is more than the length of negative pin 5, and length of the length than negative pin 5 of positive pole pin 4
Long 3~5mm.
The medial surface of positive pole aluminium foil 22 forms rough and uneven in surface using chemical corrosion method, increases the surface area of electrode, from
And increase capacitance.
Aluminum shell 1 and the contact position of rubber stopper 2 and positive pole pin stalk 24 and negative pin stalk 25 suppress a groove 10, shape
Into mechanical weak link, it can prevent capacitor from accidental explosion accident occurring when in use, once the i.e. inside of electrolytic capacitor
Hypertonia, the groove 10 of mechanical weak link will ftracture, and carry out pressure-relief explosion-proof.
During fabrication, positive pole aluminium foil leaching is carried out at anodic oxidation in the electrolytic solution for aluminium electrolutic capacitor of the present utility model
Reason, it is 0.02~0.03 μm of alundum (Al2O3) film to make just to generate a layer thickness on positive pole aluminium foil surface, this layer film be just,
Dielectric between negative pole.The negative pole of capacitor is made up of electrolyte, and electrolyte is made up of boric acid, ammoniacal liquor, ethylene glycol etc..
For the ease of the manufacture of capacitor, be typically electrolyte solution is immersed on special paper, then with an ortho states aluminium foil strip with
The paper of dipped electrolyte solution fits together, and thus easily can draw negative pole in ortho states aluminium foil strip.
Above example is only for illustration of the utility model, rather than to limitation of the present utility model, relevant technical field
Technical staff, in the case where not departing from spirit and scope of the present utility model, various conversion or modification can also be made, because
This all equivalent technical scheme should also belong to category of the present utility model, should be limited by each claim.
Claims (3)
1. a kind of aluminium electrolutic capacitor, including aluminum shell, be located in aluminum shell fuse, be located at aluminum shell oral area rubber stopper and
The positive pole pin and negative pin drawn out of aluminum shell；Characterized in that,
The fuse includes two layers electrolytic paper, positive pole aluminium foil, negative pole aluminium foil, positive pole pin and obstructed and negative pin stalk, described two layers
Electrolytic paper has adsorbed electrolyte；The positive pole aluminium foil is arranged between two layers of electrolytic paper, and the negative pole aluminium foil is fitted in internal layer
On the medial surface of electrolytic paper；Positive pole pin obstructs and negative pin obstructs the medial surface and negative pole aluminium for being fixed on positive aluminium foil correspondingly
It is integrally attached on the medial surface of paper tinsel and correspondingly the lower end of the positive pole pin and negative pin；Two layers of electrolysis
Paper, positive pole aluminium foil, negative pole aluminium foil are wound into after tubular and are placed in the inner chamber of aluminum shell；
The medial surface of the positive pole aluminium foil forms rough and uneven in surface using chemical corrosion method；
The length of the positive pole pin stalk and the equal length of negative pin stalk；
The length of the positive pole pin is more than the length of negative pin；
The aluminum shell and the contact position of rubber stopper and positive pole pin stalk and negative pin stalk suppress a groove.
2. aluminium electrolutic capacitor according to claim 1, it is characterised in that the length of the positive pole pin compares negative pin
3~5mm of length length.
3. aluminium electrolutic capacitor according to claim 1, it is characterised in that the outside of the aluminum shell is additionally provided with pyrocondensation glue
Sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720102201.1U CN206401185U (en) | 2017-01-27 | 2017-01-27 | A kind of aluminium electrolutic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720102201.1U CN206401185U (en) | 2017-01-27 | 2017-01-27 | A kind of aluminium electrolutic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206401185U true CN206401185U (en) | 2017-08-11 |
Family
ID=59517744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720102201.1U Active CN206401185U (en) | 2017-01-27 | 2017-01-27 | A kind of aluminium electrolutic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206401185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183030A (en) * | 2017-12-25 | 2018-06-19 | 谢小坚 | A kind of high-precision capacitor structure and its manufacturing method |
| CN108597880A (en) * | 2018-05-28 | 2018-09-28 | 株洲宏达电子股份有限公司 | Coiled polymer tantalum capacitor |
-
2017
- 2017-01-27 CN CN201720102201.1U patent/CN206401185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183030A (en) * | 2017-12-25 | 2018-06-19 | 谢小坚 | A kind of high-precision capacitor structure and its manufacturing method |
| CN108597880A (en) * | 2018-05-28 | 2018-09-28 | 株洲宏达电子股份有限公司 | Coiled polymer tantalum capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181227 Address after: Room A1003, 1st floor, 223 Jianghan Road, Minhang District, Shanghai, 201112 Patentee after: SHANGHAI HAZHE ELECTRONICS CO., LTD. Address before: 215143 No. 243 Kangyang Road, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Intelligent electronic technology (Suzhou) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210803 Address after: 215010 No. 26, Qinghua Road, Hushuguan Town, high tech Zone, Suzhou, Jiangsu Patentee after: Suzhou Xier Intelligent Photoelectric Co.,Ltd. Address before: Room A1003, 1st floor, 223 Jianghan Road, Minhang District, Shanghai, 201112 Patentee before: SHANGHAI HAZHE ELECTRONICS Co.,Ltd. |