CN204966289U - Ultra -low temperature high pressure aluminium electrolytic capacitor - Google Patents
Ultra -low temperature high pressure aluminium electrolytic capacitor Download PDFInfo
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- CN204966289U CN204966289U CN201520772213.6U CN201520772213U CN204966289U CN 204966289 U CN204966289 U CN 204966289U CN 201520772213 U CN201520772213 U CN 201520772213U CN 204966289 U CN204966289 U CN 204966289U
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Abstract
The utility model belongs to the technical field of the condenser, concretely relates to ultra -low temperature high pressure aluminium electrolytic capacitor, including the shell, set up the capacitor in the shell to and set up in the just outer extraction electrode on shell surface with negative outside extraction electrode, be equipped with GBL electrolyte in the core to and the anode foil in the dipping in GBL electrolyte, cathode foil and insulating interlayer, insulating interlayer set up in between anode foil and the cathode foil, anode foil, cathode foil respectively with correspond it connects just, to bear outer extraction electrode electricity. The utility model discloses aluminium electrolytic capacitor high stable, wide temperature, high -quality, impedance and capacity variation when low temperature are greatly improved, and especially the characteristic during ultra -low temperature is greatly improved, is applicable to operational environment below - 55 DEG C.
Description
Technical field
The utility model belongs to capacitor technology field, is specifically related to a kind of ultralow temperature high-pressure aluminum electrolytic capacitor.
Background technology
At present, the operating temperature range of existing high pressure (more than 500WV) aluminium electrolytic capacitor is-25 DEG C ~ 105 DEG C, plays the effect such as energy storage, filtering in electronic circuit.But when this kind of capacitor works in less than-25 DEG C ambient temperatures, its capacitance can violently decline, and makes capacitor be resistive, loses its due capacitive, do not have the effect such as energy storage, filtering.In recent years, along with the fast development of solar energy, wind energy etc., electronics are widely used in high and cold, High aititude occasion, operational environment is day by day complicated, particularly operating ambient temperature requires to have extend to-55 DEG C ~ 125 DEG C, even wider, conventional aluminum electrolytic capacitor cannot be suitable for the new demand of this operating temperature range, especially cannot be applied to operational environment lower than the occasion of-25 DEG C.
Utility model content
Can not lower than the deficiency of-25 DEG C in order to overcome existing high pressure (more than 500WV) aluminium electrolytic capacitor lower working temperature, the utility model provides a kind of high-pressure aluminum electrolytic capacitor, operating temperature range reaches-55 DEG C ~ 125 DEG C, and operating voltage reaches more than 500V.
For solving above technical problem, the utility model is achieved through the following technical solutions:
A kind of ultralow temperature high-pressure aluminum electrolytic capacitor, comprises shell, the capacitor body be arranged in shell, and is arranged at the just outer extraction electrode of case surface and bears outer extraction electrode; GBL electrolyte is provided with in described fuse, and the anode foils, Cathode Foil and the interlayer insulating layer that are dipped in GBL electrolyte, described interlayer insulating layer is arranged between described anode foils and Cathode Foil, and described anode foils, Cathode Foil are electrically connected with corresponding described positive and negative outer extraction electrode respectively.
According to above-mentioned ultralow temperature high-pressure aluminum electrolytic capacitor, the thickness of described anode foils is 80 ~ 120 microns, and the thickness of described Cathode Foil is 20 ~ 50 microns.
According to above-mentioned ultralow temperature high-pressure aluminum electrolytic capacitor, the inwall of described shell is provided with dielectric film.
According to above-mentioned ultralow temperature high-pressure aluminum electrolytic capacitor, between described shell and fuse, be provided with heat abstractor.
According to above-mentioned ultralow temperature high-pressure aluminum electrolytic capacitor, based on described GBL electrolyte, solvent is the conventional electrolysis liquid of GBL.
According to above-mentioned ultralow temperature high-pressure aluminum electrolytic capacitor, described GBL electrolyte is more preferably configured by the raw material of following percentage by weight and forms: GBL50 ~ 80%, organic carboxyl acid 2 ~ 20%, organic amine 2 ~ 20%, organic ether 1 ~ 5%, ammonium hypophosphite 0.1 ~ 1%, p nitrobenzyl alcohol 0.2 ~ 2%; Wherein organic ether is organic flash over voltage elevator, GBL is the base solvent of Working electrolyte, ammonium hypophosphite is passivator, organic carboxyl acid and ammonium hypophosphite are alumite healant, p nitrobenzyl alcohol is for inhaling hydrogen agent, organic amine is the conditioning agent of Working electrolyte acid-base value, and it effectively can promote again the conductivity of Working electrolyte simultaneously.
Described anode foils changes into alumite dielectric layer and phosphate coating successively, and the thickness of described alumite dielectric layer is 6 ~ 20 microns, and described healant and scarvenger are for repairing described alumite dielectric layer and phosphate coating.
Beneficial effect:
The utility model high-pressure aluminum electrolytic capacitor adopts GBL electrolyte, water can not be produced because of chemical reaction in work, overcome in the conventional aluminium electrolytic capacitor course of work and produce water problem because using glycol system esterification can occur, thus obtain the medium-high voltage aluminum electrolytic capacitor of high stable, wide temperature, high-quality, the impedance of high-pressure aluminum electrolytic capacitor when low temperature and volume change are greatly improved, characteristic particularly during ultralow temperature is greatly improved, and makes high-pressure aluminum electrolytic capacitor be applicable to less than-55 DEG C operational environments.
The utility model high-pressure aluminum electrolytic capacitor compares in table 1 with the ethylene glycol system aluminium electrolytic capacitor low-temperature characteristics in the application used in a large number at present.
Table 1 low-temperature characteristics contrast table
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model high-pressure aluminum electrolytic capacitor;
In figure, 1 is shell, and 2 is fuse, and 3 is GBL electrolyte, and 4 is just outer extraction electrode, and 5 is negative outer extraction electrode, and 6 is anode foils, and 7 is Cathode Foil, and 8 is interlayer insulating layer.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described, but the utility model is not limited to these embodiments.
Embodiment 1
A kind of ultralow temperature high-pressure aluminum electrolytic capacitor, comprises shell 1, the capacitor body 2 be arranged in shell, and is arranged at the just outer extraction electrode 4 on shell 1 surface and bears outer extraction electrode 5; GBL electrolyte 3 is provided with in described fuse 2, and the anode foils 6, Cathode Foil 7 and the interlayer insulating layer 8 that are dipped in GBL electrolyte 3, described interlayer insulating layer 8 is arranged between described anode foils 6 and Cathode Foil 7, and adsorb described GBL electrolyte 3, described anode foils 6, Cathode Foil 7 are electrically connected with corresponding described positive and negative outer extraction electrode respectively.
The thickness of described anode foils 6 is 80 ~ 120 microns, and the thickness of described Cathode Foil 7 is 20 ~ 50 microns.Based on described GBL electrolyte 3, solvent is the conventional electrolysis liquid of GBL.
Described GBL electrolyte 3 is more preferably configured by the raw material of following percentage by weight and forms: GBL50 ~ 80%, organic carboxyl acid 2 ~ 20%, organic amine 2 ~ 20%, organic ether 1 ~ 5%, ammonium hypophosphite 0.1 ~ 1%, p nitrobenzyl alcohol 0.2 ~ 2%; Wherein organic ether is organic flash over voltage elevator, GBL is the base solvent of Working electrolyte, ammonium hypophosphite is passivator, organic carboxyl acid and ammonium hypophosphite are alumite healant, p nitrobenzyl alcohol is for inhaling hydrogen agent, organic amine is the conditioning agent of Working electrolyte acid-base value, and it effectively can promote again the conductivity of Working electrolyte simultaneously.Described anode foils changes into alumite dielectric layer and phosphate coating successively, and the thickness of described alumite dielectric layer is 6 ~ 20 microns, and described healant and scarvenger are for repairing described alumite dielectric layer and phosphate coating.
Embodiment 2
A kind of ultralow temperature high-pressure aluminum electrolytic capacitor, except following technical characteristic, identical with embodiment: the inwall of described shell is provided with dielectric film, to improve the seakeeping capacity of capacitor, and being provided with heat abstractor between shell and fuse, under reduction using state, capacitor is because of the possibility of thermal spalling.
Be described in detail specific embodiment of the utility model above, but it is just as example, the utility model is not restricted to above description specific embodiment.To those skilled in the art, any equivalent modifications that the utility model is carried out and substituting also all among category of the present utility model.Therefore, not departing from the equalization conversion and amendment done under spirit and scope of the present utility model, be all encompassed within the scope of the utility model.
Claims (5)
1. a ultralow temperature high-pressure aluminum electrolytic capacitor, comprise shell, the capacitor body be arranged in shell, and be arranged at the just outer extraction electrode of case surface and negative outer extraction electrode, it is characterized in that: in described fuse, be provided with GBL electrolyte, and the anode foils, Cathode Foil and the interlayer insulating layer that are dipped in GBL electrolyte, described interlayer insulating layer is arranged between described anode foils and Cathode Foil, and described anode foils, Cathode Foil are electrically connected with corresponding described positive and negative outer extraction electrode respectively.
2. ultralow temperature high-pressure aluminum electrolytic capacitor according to claim 1, is characterized in that: the thickness of described anode foils is 80 ~ 120 microns, and the thickness of described Cathode Foil is 20 ~ 50 microns.
3. ultralow temperature high-pressure aluminum electrolytic capacitor according to claim 1, is characterized in that: based on described GBL electrolyte, solvent is the electrolyte of GBL.
4. ultralow temperature high-pressure aluminum electrolytic capacitor according to claim 1, is characterized in that: the inwall of described shell is provided with dielectric film.
5. ultralow temperature high-pressure aluminum electrolytic capacitor according to claim 1, is characterized in that: be provided with heat abstractor between described shell and fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772213.6U CN204966289U (en) | 2015-10-08 | 2015-10-08 | Ultra -low temperature high pressure aluminium electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772213.6U CN204966289U (en) | 2015-10-08 | 2015-10-08 | Ultra -low temperature high pressure aluminium electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966289U true CN204966289U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520772213.6U Expired - Fee Related CN204966289U (en) | 2015-10-08 | 2015-10-08 | Ultra -low temperature high pressure aluminium electrolytic capacitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492449A (en) * | 2017-07-04 | 2017-12-19 | 佛山市英飞翎电子有限公司 | A kind of wide-temperature aluminium electrolytic capacitor |
| CN108987115A (en) * | 2018-09-03 | 2018-12-11 | 江西联晟电子股份有限公司 | One kind leading foil and draws electroconductive polymer aluminium electrolutic capacitor |
| CN111403178A (en) * | 2020-03-26 | 2020-07-10 | 湖州一力电子有限公司 | Ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
-
2015
- 2015-10-08 CN CN201520772213.6U patent/CN204966289U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492449A (en) * | 2017-07-04 | 2017-12-19 | 佛山市英飞翎电子有限公司 | A kind of wide-temperature aluminium electrolytic capacitor |
| CN108987115A (en) * | 2018-09-03 | 2018-12-11 | 江西联晟电子股份有限公司 | One kind leading foil and draws electroconductive polymer aluminium electrolutic capacitor |
| CN108987115B (en) * | 2018-09-03 | 2023-06-27 | 江西联晟电子股份有限公司 | Conductive high-molecular aluminum electrolytic capacitor led out by guide foil |
| CN111403178A (en) * | 2020-03-26 | 2020-07-10 | 湖州一力电子有限公司 | Ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
| CN111403178B (en) * | 2020-03-26 | 2020-11-03 | 湖州一力电子有限公司 | Ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20191008 |