CN203871185U - Novel low-temperature-resistant aluminum electrolytic capacitor - Google Patents
Novel low-temperature-resistant aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN203871185U CN203871185U CN201420227727.9U CN201420227727U CN203871185U CN 203871185 U CN203871185 U CN 203871185U CN 201420227727 U CN201420227727 U CN 201420227727U CN 203871185 U CN203871185 U CN 203871185U
- Authority
- CN
- China
- Prior art keywords
- aluminum
- capacitor core
- capacitor
- foil
- temperature
- 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.)
- Expired - Fee Related
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 54
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000003990 capacitor Substances 0.000 title claims abstract description 41
- 239000011888 foil Substances 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims description 11
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- -1 Iron ion Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Provided is a novel low-temperature-resistant aluminum electrolytic capacitor that comprises a bushing, an aluminum housing, and a capacitor core inside the aluminum housing. A packaging layer is disposed on the top of the capacitor core formed by reeling an anode foil, a cathode foil, and electrolytic paper. The inner surface, contacting the capacitor core, of the aluminum housing is coated with a heat-absorbing coating. The outer surface of the aluminum housing is coated with a heat-conducting coating. A sealed cavity is arranged between the aluminum housing and the bushing and is filled with a heat-conducting insulating medium. The anode foil and the cathode foil are provided with aluminum foil bars. Guide needles are disposed on the tops of the aluminum foil bars and pass through the packaging layer on the top of the capacitor core so as to be extended out of the capacitor core. The novel low-temperature-resistant aluminum electrolytic capacitor has advantages of simple structure, good low-temperature-resistant performance, and a long service life. Further, the heat-conducting insulating medium with good low temperature performance is filled in the cavity between the aluminum housing and the bushing in order to maintain good performance of the novel low-temperature-resistant aluminum electrolytic capacitor in low temperature environment.
Description
Technical field
The utility model relates to capacitor technology field, especially relates to a kind of novel low temperature resistant aluminium electrolytic capacitor.
Background technology
Along with the shortage of resource and the impact of climate change, more and more pay attention to south, the arctic and natural exploration and exploitation, the temperature of south, the arctic belongs to extremely cold environment (according to the Kunlun scientific expedition in the investigation that lasts 63 days, the measured mean temperature in the South Pole is-58.4 DEG C), how aluminium electrolytic capacitor meets the extremely cold environment of ultralow temperature, and solving the resistance to ultralow temperature ability of aluminium electrolytic capacitor will be an indispensable measure.The common serviceability temperature of aluminium electrolytic capacitor is used within the scope of-25 DEG C～+ 70 DEG C, also there is can be used within the scope of-55 DEG C～+ 105 DEG C application, when temperature is during lower than-55 DEG C, can there is bad change in its capacity, loss, leakage current, the use that the affects capacitor due function of even scattering and disappearing.
Summary of the invention
The utility model object is to overcome the deficiencies in the prior art, and a kind of novel low temperature resistant aluminium electrolytic capacitor is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of novel low temperature resistant aluminium electrolytic capacitor, comprises sleeve pipe, aluminum hull and be arranged on the capacitor core in aluminum hull; Described capacitor core is reeled and is formed by anode foils, Cathode Foil and electrolytic paper, and this capacitor core upper end is provided with encapsulated layer; Described aluminum hull inner surface and capacitor core contact-making surface are covered with heat absorbing coating, and this aluminum hull outer surface is covered with heat conducting coating; Between described aluminum hull and sleeve pipe, be provided with a sealed cavity, in sealing cavity, be filled with heat conductive insulating medium; Described anode foils is provided with aluminum foil strip, and Cathode Foil is provided with aluminum foil strip, and wherein aluminum foil strip top is respectively equipped with guide pin, and this guide pin passes the encapsulated layer of capacitor core upper end and extends to outside capacitor core.
As preferably, the area of described anode foils, Cathode Foil is identical, and makes for aluminium foil, and this aluminum foil thickness is 40～100 μ m.
As preferably, described electrolytic paper thickness is 40～50 μ m.
The utlity model has simple in structure, the advantage such as resistance to low temperature good, long service life.By at sleeve pipe of aluminum hull arranged outside, and fill and there is the good heat conductive insulating medium of low temperature properties in cavity between aluminum hull and sleeve pipe, keep the utility model electrolytic capacitor under low temperature environment, still can keep good performance to reach.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Fig. 1 is structural representation of the present utility model.As shown in Figure 1, a kind of novel low temperature resistant aluminium electrolytic capacitor, mainly by sleeve pipe 1, aluminum hull 3 be arranged on capacitor core in aluminum hull 3 etc. and form, described capacitor core upper end is provided with encapsulated layer 8, and this capacitor core is reeled and formed by anode foils 11, Cathode Foil 13 and electrolytic paper 12, and wherein the area of anode foils 11, Cathode Foil 13 is identical, and for aluminium foil is made, aluminum foil thickness is 40～100 μ m, and electrolytic paper 12 thickness are 40～50 μ m, and density is 0.15 to 0.70/Cm
3.Aluminum hull 3 lumen loadings have electrolyte, and this electrolyte PH value is 6.0 to 7.0, under-65 DEG C of environment, do not freeze, and conductivity is 1.0 to 7.0(mS/Cm); Chloride content is less than 1PPM; Sulphates content is less than 2PPM; Iron ion content is less than 2PPM; Content of beary metal is less than 2PPM.
Aluminum hull 3 inner surfaces and capacitor core contact-making surface are covered with heat absorbing coating 5, and these aluminum hull 3 outer surfaces are covered with heat conducting coating 4; Between described aluminum hull 3 and sleeve pipe 1, be provided with a sealed cavity, in sealing cavity, be filled with heat conductive insulating medium 2; Described anode foils 11 is provided with aluminum foil strip 10, Cathode Foil 13 is provided with aluminum foil strip 7, wherein aluminum foil strip 10 tops are provided with guide pin 9, aluminum foil strip 7 tops are provided with guide pin 6, the high-purity guide pin of guide pin 9,6 for changing into through the above voltage of 600V, guide pin 9,6 passes the encapsulated layer 8 of capacitor core upper end and extends to outside capacitor core.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (3)
1. a novel low temperature resistant aluminium electrolytic capacitor, comprises sleeve pipe, aluminum hull and is arranged on the capacitor core in aluminum hull; It is characterized in that, described capacitor core is reeled and is formed by anode foils, Cathode Foil and electrolytic paper, and this capacitor core upper end is provided with encapsulated layer; Described aluminum hull inner surface and capacitor core contact-making surface are covered with heat absorbing coating, and this aluminum hull outer surface is covered with heat conducting coating; Between described aluminum hull and sleeve pipe, be provided with a sealed cavity, in sealing cavity, be filled with heat conductive insulating medium; Described anode foils is provided with aluminum foil strip, and Cathode Foil is provided with aluminum foil strip, and wherein aluminum foil strip top is respectively equipped with guide pin, and this guide pin passes the encapsulated layer of capacitor core upper end and extends to outside capacitor core.
2. the novel low temperature resistant aluminium electrolytic capacitor of one according to claim 1, is characterized in that, the area of described anode foils, Cathode Foil is identical, and makes for aluminium foil, and this aluminum foil thickness is 40～100 μ m.
3. the novel low temperature resistant aluminium electrolytic capacitor of one according to claim 1, is characterized in that, described electrolytic paper thickness is 40～50 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227727.9U CN203871185U (en) | 2014-05-06 | 2014-05-06 | Novel low-temperature-resistant aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227727.9U CN203871185U (en) | 2014-05-06 | 2014-05-06 | Novel low-temperature-resistant aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871185U true CN203871185U (en) | 2014-10-08 |
Family
ID=51652110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227727.9U Expired - Fee Related CN203871185U (en) | 2014-05-06 | 2014-05-06 | Novel low-temperature-resistant aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465105A (en) * | 2014-11-20 | 2015-03-25 | 上海永铭电子有限公司 | Low-temperature-resistant aluminum electrolytic capacitor |
| CN104465108A (en) * | 2014-11-20 | 2015-03-25 | 上海永铭电子有限公司 | Aluminum electrolytic capacitor resistant to lightning strokes |
-
2014
- 2014-05-06 CN CN201420227727.9U patent/CN203871185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465105A (en) * | 2014-11-20 | 2015-03-25 | 上海永铭电子有限公司 | Low-temperature-resistant aluminum electrolytic capacitor |
| CN104465108A (en) * | 2014-11-20 | 2015-03-25 | 上海永铭电子有限公司 | Aluminum electrolytic capacitor resistant to lightning strokes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 517000 North Building B and C of Keliu Road West of Xingye Avenue, Heyuan Hi-tech Development Zone, Guangdong Province Patentee after: Heyuan New Great Electronics Co.,Ltd. Address before: 517000 North Building B and C of Keliu Road West of Xingye Avenue, Heyuan Hi-tech Development Zone, Guangdong Province Patentee before: Heyuan Keweimei Electronics Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 517000 North Building B and C of Keliu Road West of Xingye Avenue, Heyuan Hi-tech Development Zone, Guangdong Province Patentee after: Heyuan Keweimei Electronics Co.,Ltd. Address before: 518000 2nd Floor, 6A Building, Heshuikou Community, Gongming Office, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN KEWEIMEI ELECTRONIC Co.,Ltd. |
|
| 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: 20141008 |