CN203134573U - Electrolytic capacitor beneficial to thinning of circuit board - Google Patents
Electrolytic capacitor beneficial to thinning of circuit board Download PDFInfo
- Publication number
- CN203134573U CN203134573U CN 201320184689 CN201320184689U CN203134573U CN 203134573 U CN203134573 U CN 203134573U CN 201320184689 CN201320184689 CN 201320184689 CN 201320184689 U CN201320184689 U CN 201320184689U CN 203134573 U CN203134573 U CN 203134573U
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- electrolytic capacitor
- capacitor core
- capacitor
- pole pin
- beneficial
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Abstract
The utility model relates to an electrolytic capacitor beneficial to thinning of a circuit board. The electrolytic capacitor comprises an aluminum shell and a capacitor core inside the aluminum shell, wherein an insulating film covers the inner wall of the aluminum shell; the distance between the capacitor core and the inner wall of the aluminum shell is 0.1-0.3mm; a positive pole pin and a negative pole pin are extended outside the aluminum from the capacitor core; and both the positive pole pin and the negative pole pin are provided with bent parts of 90 degrees. Due to the insulating film, the anode and the cathode of the capacitor core are prevented from short circuit even when the inner wall of the aluminum shell is in contact with the capacitor core, thereby ensuring that the distance between the capacitor core and the inner wall of the aluminum shell is decreased; and moreover, the positive pole pin and the negative pole pin are bent for 90 degrees, the electrolytic capacitor can be horizontally installed on the circuit board when being installed on the circuit board, thereby being beneficial to thinning of the circuit board.
Description
Technical field
The utility model relates to the electrolytic capacitor structure.
Background technology
Electrolytic capacitor generally is made of aluminum hull and capacitor core.Wherein, capacitor core is to be reeled by four plies such as anode metal paper tinsel, electrolytic paper, cathodic metal paper tinsel, electrolytic papers, handles forming again through impregnation electrolyte.The cathodic metal paper tinsel of capacitor core generally adopts normal aluminium foil to make, and can not bear the impact of reverse leakage current, thereby shortened the useful life of electrolytic capacitor.In addition, might produce the crooked aluminum hull inwall of running into because installation accuracy is not high because carry out the capacitor core that impregnation electrolyte handles, and make aluminum hull cause the capacitor core phenomenon that is short-circuited.So the electrolytic capacitor of prior art is in when assembling, around the capacitor core and the space length of 1-3 millimeter need be arranged according to withstand voltage situation between the inwall of aluminum hull.Size along with various electronic products, comprise dwindling day by day of thickness, other electronic components can satisfy the requirement of this trend substantially, this also requires electrolytic capacitor not lose on the basis of previous level in its performance, with the further miniaturization of overall dimension, therefore, how the spacing distance between capacitor core and the aluminum hull dwindles, and is urgent problem.
In addition, when the electrolytic capacitor of prior art is connected with wiring board, all adopt the vertical type welding manner, this structure is unfavorable for the slimming of wiring board, thereby has limited various electronic products to the development of more thinning direction.
The utility model content
The purpose of this utility model is to propose a kind of electrolytic capacitor that utilizes the wiring board slimming, and it is big that it can solve present electrolytic capacitor volume, is unfavorable for the problem of wiring board thinning.
In order to achieve the above object, the technical scheme that adopts of the utility model is as follows:
Be beneficial to the electrolytic capacitor of wiring board slimming, the capacitor core that it comprises aluminum hull and is positioned at aluminum hull, the inwall of aluminum hull is coated with dielectric film, distance between capacitor core and the aluminum hull inwall is 0.1-0.3mm, capacitor core is drawn anodal pin, negative pole pin outside aluminum hull, anodal pin, negative pole pin all have 90 ° of bending parts.
Preferably, there is difference in height between the free end of the free end of anodal pin and negative pole pin.
Preferably, described dielectric film is silicon oxide insulating film.
The utlity model has following beneficial effect:
Can not make its negative and positive the two poles of the earth short circuit even dielectric film makes the aluminum hull inwall contact with capacitor core yet, guaranteed that capacitor core can dwindle and the aluminum hull inwall between spacing.And anodal pin, 90 ° of bendings of negative pole pin make and can crouch in the circuit board when electrolytic capacitor is installed in the circuit board, are conducive to the wiring board slimming more.Anodal pin, negative pole pin adopt the difference in height design, be conducive to distinguish the both positive and negative polarity of electrolytic capacitor, reversal connection and the security incident of electrolytic capacitor have been avoided, simultaneously, the difference in height design has also increased electrolytic capacitor area of dissipation in the circuit board, helps the heat radiation of electrolytic capacitor in reality is used.
Description of drawings
Fig. 1 is the cutaway view of the electrolytic capacitor that is beneficial to the wiring board slimming of the utility model preferred embodiment.
Reference numeral: 1, aluminum hull; 2, capacitor core; 3, dielectric film; 4, anodal pin; 5, negative pole pin; 6, bending part.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
As shown in Figure 1, a kind of electrolytic capacitor that is beneficial to the wiring board slimming, the capacitor core 2 that it comprises aluminum hull 1 and is positioned at aluminum hull 1, the inwall of aluminum hull 1 is coated with dielectric film 3, distance between capacitor core 2 and aluminum hull 1 inwall is 0.1-0.3mm, capacitor core 2 is drawn anodal pin 4, negative pole pin 5 outside aluminum hull 1, anodal pin 4, negative pole pin 5 all have 90 ° of bending parts 6.
There is difference in height between the free end of anodal pin 4 and the free end of negative pole pin 5.
The dielectric film 3 of present embodiment is silicon oxide insulating film.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection range of the utility model claim all.
Claims (3)
1. be beneficial to the electrolytic capacitor of wiring board slimming, comprise aluminum hull and the capacitor core that is positioned at aluminum hull, it is characterized in that, the inwall of aluminum hull is coated with dielectric film, distance between capacitor core and the aluminum hull inwall is 0.1-0.3mm, capacitor core is drawn anodal pin, negative pole pin outside aluminum hull, anodal pin, negative pole pin all have 90 ° of bending parts.
2. the electrolytic capacitor that is beneficial to the wiring board slimming as claimed in claim 1 is characterized in that, has difference in height between the free end of the free end of anodal pin and negative pole pin.
3. the electrolytic capacitor that is beneficial to the wiring board slimming as claimed in claim 1 is characterized in that, described dielectric film is silicon oxide insulating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184689 CN203134573U (en) | 2013-04-12 | 2013-04-12 | Electrolytic capacitor beneficial to thinning of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184689 CN203134573U (en) | 2013-04-12 | 2013-04-12 | Electrolytic capacitor beneficial to thinning of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134573U true CN203134573U (en) | 2013-08-14 |
Family
ID=48942524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320184689 Expired - Fee Related CN203134573U (en) | 2013-04-12 | 2013-04-12 | Electrolytic capacitor beneficial to thinning of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221452A (en) * | 2017-05-09 | 2017-09-29 | 柯利佳 | It is a kind of can horizontal welding ultracapacitor |
-
2013
- 2013-04-12 CN CN 201320184689 patent/CN203134573U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221452A (en) * | 2017-05-09 | 2017-09-29 | 柯利佳 | It is a kind of can horizontal welding ultracapacitor |
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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 |
Granted publication date: 20130814 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |