CN204067073U - A kind of resistant to elevated temperatures aluminium electrolytic capacitor - Google Patents
A kind of resistant to elevated temperatures aluminium electrolytic capacitor Download PDFInfo
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- CN204067073U CN204067073U CN201420355669.8U CN201420355669U CN204067073U CN 204067073 U CN204067073 U CN 204067073U CN 201420355669 U CN201420355669 U CN 201420355669U CN 204067073 U CN204067073 U CN 204067073U
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Abstract
The utility model discloses a kind of resistant to elevated temperatures aluminium electrolytic capacitor, described aluminium electrolytic capacitor comprises capacitor element, shell, cover plate, anode lead wire and cathode terminal, and, electrolyte is loaded with in the housing of described shell, described electrolyte comprises: main solvent, secondary solvent, solute and stabilizer, can prevent electrolyte from high temperature decarboxylation occurring, thus under enabling described aluminium electrolytic capacitor be applied to hot environment, improve described aluminium electrolytic capacitor useful life in high temperature environments.
Description
Technical field
The utility model relates to electronic circuit field, particularly relates to a kind of resistant to elevated temperatures aluminium electrolytic capacitor.
Background technology
Electrolytic capacitor is the requisite elements of various electronic product terminals, plays vital effect in electronic system.Described electrolytic capacitor has following functions usually: stopping direct current, namely stops direct current pass through and allow interchange pass through; Bypass (decoupling), is the element of some parallel connection in alternating current circuit and provides low impedance path; Coupling, namely as the connection between two circuit, allows AC signal pass through and be transferred to the effects such as next stage circuit and filtering.
According to the difference using valve metal, electrolytic capacitor can be divided into: the electrolytic capacitor of tantalum electrolytic capacitor, aluminium electrolytic capacitor, niobium electrolytic capacitor and titanium electrolytic capacitor Four types.Wherein, aluminium electrolytic capacitor does negative pole by aluminium cylinder, liquid electrolyte is equipped with in the inside, the aluminium strip inserting a bending tablet does positive pole and the capacitor made, owing to having advantage capacious, aluminium electrolytic capacitor is widely used, and such as in recent years, is rapidly developed in recent years with the power technology that wind energy, solar energy are representative.Inverter in the frequency converter and solar power system of wind generator system all needs to use aluminium electrolytic capacitor.
But along with the fast development of the increasingly extensive and power technology of application, the environment of aluminium electrolytic capacitor application is day by day harsh, under often needing to be applied to hot environment, and under existing aluminium electrolytic capacitor often can only be applied to the applied environment of lower temperature.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of electrolytic capacitor, as follows to solve specific embodiments in prior art:
A kind of resistant to elevated temperatures aluminium electrolytic capacitor, comprising: capacitor element, shell, cover plate, anode lead wire and cathode terminal, wherein,
Described capacitor element is formed by dividing plate winding by anode foils and Cathode Foil, is placed in the housing of described shell;
Described cover plate is arranged on the opening part of described shell;
Described anode lead wire and cathode terminal are outwards drawn respectively from described shell;
Electrolyte is loaded with in the housing of described shell;
Wherein, described electrolyte comprises: main solvent, secondary solvent, solute and stabilizer.
Preferably, described electrolyte also comprises: disappear hydrogen agent.
Preferably, described electrolyte comprises:
The hydrogen agent that disappears of the main solvent of 40-80%, the secondary solvent of 10-30%, the solute of 8-20%, the stabilizer of 1-10% and 1-4%.
Preferably, described main solvent comprises:
The ethylene glycol of 50-60%, the butyrolactone of 40-50%.
Preferably, described secondary solvent comprises:
One or more in diethylene glycol (DEG), EGME, phenmethylol, N-methyl pyrrolidone, polyethylene glycol 5100 and deionized water.
Preferably, described solute comprises:
Ammonium adipate, ammonium pentaborate, decanedioic acid are by, one or more in dodecandioic acid ammonium, the aliphatic acid with collateral chain and the quaternary amine with collateral chain.
Preferably, described stabilizer comprises:
One or more in borate compound, phosphate compound, sweet mellow wine, faintly acid poly-ring aromatic compounds and organo-silane coupling agents.
Preferably, the hydrogen agent that disappears described in comprises:
One or more in paranitrobenzoic acid, p nitrobenzyl alcohol, 3-nitroacetophenone, ortho-nitroanisole.
Preferably, described electrolyte also comprises:
Suppress leakage current and promote the additive changing into performance.
Preferably, described additive comprises: one or more in phosphoric acid, phosphorous acid, ortho phosphorous acid, phosphate monoester.
In resistant to elevated temperatures aluminium electrolytic capacitor disclosed in the present application, be provided with capacitor element, shell, cover plate, anode lead wire and cathode terminal, and, electrolyte is loaded with in the housing of described shell, described electrolyte comprises: main solvent, secondary solvent, solute and stabilizer, can prevent electrolyte from high temperature decarboxylation occurring, thus under enabling described aluminium electrolytic capacitor be applied to hot environment, improve the useful life under hot environment.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of Fig. 1 a kind of resistant to elevated temperatures aluminium electrolytic capacitor disclosed in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of resistant to elevated temperatures aluminium electrolytic capacitor, to improve the useful life of aluminium electrolytic capacitor.
Structural representation shown in Figure 1, described aluminium electrolytic capacitor comprises: capacitor element 1, shell 2, cover plate 3, anode lead wire 4 and cathode terminal 5.
Wherein, capacitor element 1 is formed by dividing plate winding by anode foils and Cathode Foil, is placed in the housing of described shell 2;
Described cover plate 3 is arranged on the opening part of described shell 2;
Described anode lead wire 4 and cathode terminal 5 are outwards drawn respectively from described shell 2;
Electrolyte is loaded with in the housing of described shell 2;
Wherein, described electrolyte comprises: main solvent, secondary solvent, solute and stabilizer.
In the resistant to elevated temperatures aluminium electrolytic capacitor of one disclosed in the present application, be provided with capacitor element, shell, cover plate, anode lead wire and cathode terminal, and, electrolyte is loaded with in the housing of described shell, described electrolyte comprises: main solvent, secondary solvent, solute and stabilizer, can prevent electrolyte from high temperature decarboxylation occurring, thus under enabling described aluminium electrolytic capacitor be applied to hot environment, improve the useful life under hot environment.
Further, also comprise in described electrolyte: disappear hydrogen agent.
When described electrolyte comprise disappear hydrogen agent time, described electrolyte comprises: the hydrogen agent that disappears of the main solvent of 40-80%, the secondary solvent of 10-30%, the solute of 8-20%, the stabilizer of 1-10% and 1-4%.
Wherein, described main solvent comprises multiple feasible form.Wherein in a kind of possible form, described main solvent comprises: the ethylene glycol of 50-60%, the butyrolactone of 40-50%.Such as, described main solvent can be made up of the ethylene glycol of 50% and the butyrolactone of 50%, or described main solvent is made up of jointly the ethylene glycol of 60% and the butyrolactone of 40%.
Further, described secondary solvent comprises: one or more in diethylene glycol (DEG), EGME, phenmethylol, N-methyl pyrrolidone, polyethylene glycol 5100 and deionized water.
Further, described solute comprises: ammonium adipate, ammonium pentaborate, decanedioic acid are by, one or more in dodecandioic acid ammonium, the aliphatic acid with collateral chain and the quaternary amine with collateral chain.
Further, described stabilizer comprises: one or more in borate compound, phosphate compound, sweet mellow wine, faintly acid poly-ring aromatic compounds and organo-silane coupling agents.
Further, the hydrogen agent that disappears described in comprises: one or more in paranitrobenzoic acid, p nitrobenzyl alcohol, 3-nitroacetophenone, ortho-nitroanisole.
By above-mentioned disclosed main solvent, secondary solvent, solute, stabilizer and the hydrogen agent that disappears, the stability of electrolyte can be improved, prevent electrolyte from high temperature decarboxylation occurring, thus under enabling described aluminium electrolytic capacitor be applied to hot environment, improve the useful life under hot environment.
Further, in the resistant to elevated temperatures aluminium electrolytic capacitor of one disclosed in the present application, described electrolyte also comprises: additive, and described additive changes into performance for suppressing leakage current and lifting.
Wherein, described additive comprises: one or more in phosphoric acid, phosphorous acid, ortho phosphorous acid, phosphate monoester.
When including additive in described electrolyte, the content of described additive is usually less, and such as, the quality of described additive can be the 0.1-0.5% of the gross mass of electrolyte.Place additive in described electrolyte after, the stability of electrolyte can be made higher.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a resistant to elevated temperatures aluminium electrolytic capacitor, is characterized in that, described aluminium electrolytic capacitor comprises: capacitor element, shell, cover plate, anode lead wire and cathode terminal, wherein,
Described capacitor element is formed by dividing plate winding by anode foils and Cathode Foil, is placed in the housing of described shell;
Described cover plate is arranged on the opening part of described shell;
Described anode lead wire and cathode terminal are outwards drawn respectively from described shell;
Electrolyte is loaded with in the housing of described shell;
Wherein, described electrolyte comprises: main solvent, secondary solvent, solute and stabilizer.
2. aluminium electrolytic capacitor according to claim 1, is characterized in that, described electrolyte also comprises: disappear hydrogen agent.
3. aluminium electrolytic capacitor according to claim 2, is characterized in that, described electrolyte comprises:
The hydrogen agent that disappears of the main solvent of 40-80%, the secondary solvent of 10-30%, the solute of 8-20%, the stabilizer of 1-10% and 1-4%.
4. aluminium electrolytic capacitor according to claim 2, is characterized in that, described main solvent comprises:
The ethylene glycol of 50-60%, the butyrolactone of 40-50%.
5. aluminium electrolytic capacitor according to claim 2, is characterized in that, described secondary solvent comprises:
One or more in diethylene glycol (DEG), EGME, phenmethylol, N-methyl pyrrolidone, polyethylene glycol 5100 and deionized water.
6. aluminium electrolytic capacitor according to claim 2, is characterized in that, described solute comprises:
Ammonium adipate, ammonium pentaborate, decanedioic acid are by, one or more in dodecandioic acid ammonium, the aliphatic acid with collateral chain and the quaternary amine with collateral chain.
7. aluminium electrolytic capacitor according to claim 2, is characterized in that, described stabilizer comprises:
One or more in borate compound, phosphate compound, sweet mellow wine, faintly acid poly-ring aromatic compounds and organo-silane coupling agents.
8. aluminium electrolytic capacitor according to claim 2, is characterized in that, described in the hydrogen agent that disappears comprise:
One or more in paranitrobenzoic acid, p nitrobenzyl alcohol, 3-nitroacetophenone, ortho-nitroanisole.
9. aluminium electrolytic capacitor according to claim 1, is characterized in that, described electrolyte also comprises:
Suppress leakage current and promote the additive changing into performance.
10. aluminium electrolytic capacitor according to claim 9, is characterized in that,
Described additive comprises: one or more in phosphoric acid, phosphorous acid, ortho phosphorous acid, phosphate monoester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355669.8U CN204067073U (en) | 2014-06-30 | 2014-06-30 | A kind of resistant to elevated temperatures aluminium electrolytic capacitor |
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| CN201420355669.8U CN204067073U (en) | 2014-06-30 | 2014-06-30 | A kind of resistant to elevated temperatures aluminium electrolytic capacitor |
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| CN204067073U true CN204067073U (en) | 2014-12-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098381A (en) * | 2016-08-29 | 2016-11-09 | 益阳华晟鑫电子有限公司 | A kind of manufacturing process of novel anti-kilovolt thunderbolt aluminium electrolutic capacitor |
| CN107946076A (en) * | 2017-11-18 | 2018-04-20 | 陈馨雅 | It is a kind of that there is high flash over voltage, the aluminum electrolytic capacitor electrolyte of heat-resisting ability |
| CN111029153A (en) * | 2019-12-13 | 2020-04-17 | 珠海格力新元电子有限公司 | Electrolyte for ultralow-temperature aluminum electrolytic capacitor and preparation method thereof |
-
2014
- 2014-06-30 CN CN201420355669.8U patent/CN204067073U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098381A (en) * | 2016-08-29 | 2016-11-09 | 益阳华晟鑫电子有限公司 | A kind of manufacturing process of novel anti-kilovolt thunderbolt aluminium electrolutic capacitor |
| CN107946076A (en) * | 2017-11-18 | 2018-04-20 | 陈馨雅 | It is a kind of that there is high flash over voltage, the aluminum electrolytic capacitor electrolyte of heat-resisting ability |
| CN111029153A (en) * | 2019-12-13 | 2020-04-17 | 珠海格力新元电子有限公司 | Electrolyte for ultralow-temperature aluminum electrolytic capacitor and preparation method thereof |
| CN111029153B (en) * | 2019-12-13 | 2022-02-11 | 珠海格力新元电子有限公司 | Electrolyte for ultralow-temperature aluminum electrolytic capacitor and preparation method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160630 |