CN203503477U - Energy-storage capacitor - Google Patents
Energy-storage capacitor Download PDFInfo
- Publication number
- CN203503477U CN203503477U CN201320638260.2U CN201320638260U CN203503477U CN 203503477 U CN203503477 U CN 203503477U CN 201320638260 U CN201320638260 U CN 201320638260U CN 203503477 U CN203503477 U CN 203503477U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- cover plate
- foil
- anode
- electrolytic paper
- 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 - Lifetime
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 28
- 238000004146 energy storage Methods 0.000 title claims abstract description 9
- 239000011888 foil Substances 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract 2
- 238000005476 soldering Methods 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses an energy-storage capacitor, and belongs to a capacitor, and an objective is to provide a capacitor which is good in heat radiation performance, low in internal resistance, and long in service life. The capacitor comprises a capacitor core, an insulating cover plate sealing a housing opening soldering lugs fixed on the insulating cover plate and connected with anode foil through anode leading-out wires, and cathode leading-out wires connected between cathode foil and an inner wall of the housing. An upper end and a lower end of electrolytic paper (4) are longer than an upper end and a lower end of the anode foil (3). A lower end of the cathode foil (6) is longer than the lower end of the electrolytic paper (4) and contacts with the bottom surface of the housing (5). A bonding pad (9) on the insulating cover plate (1) is fixedly connected with an anode leading-out wire (2) through a rivet (10). The capacitor is not only good in heat radiation performance, low in temperature, and good in ripple current resistant capacity, but also consumes little electrolyte and is lone in service life.
Description
Technical field
The utility model relates to a kind of capacitor, relates in particular to a kind of energy storage capacitor that digs.
Background technology
As everyone knows, traditional energy storage aluminum capacitor is mainly by shell, is sealed in this shell by cathode foil, anode foil, capacitor body that the electrolytic paper of cathode foil and anode foil isolation is wound into tubular structure and forms.Because anode foil does not contact with the inwall of shell, so the heat of electric capacity inside can not outwards transmit through shell by anode foil, and the temperature of electric capacity inside is higher, impedance is larger; Easily cause electrolyte boiling, accelerated electrolyte consumption even dry, thereby cause ability to bear reduction, the capacitor life-span of ripple current to shorten.
Summary of the invention
In order to overcome the defect existing in prior art, the utility model aims to provide that a kind of perfect heat-dissipating, internal resistance are little, the energy storage capacitor of long service life.
To achieve these goals, the utility model is by the following technical solutions: it comprises and being fixed in shell by cathode foil, anode foil and the capacitor body that the electrolytic paper of described cathode foil and anode foil isolation is wound into tubular structure, by the insulation cover plate of described outer cover port sealing, be fixed on this insulation cover plate and by positive outside wire and the weld tabs that described cathode foil is connected, be connected to the negative outside wire between described anode foil and outer casing inner wall; The upper/lower terminal of electrolytic paper is longer than the upper/lower terminal of cathode foil, and the lower end of anode foil is longer than the lower end of electrolytic paper and is contacted with the bottom surface of shell; The bonding pad being positioned on insulation cover plate is affixed by rivet and positive outside wire.
The retainer ring that has insulation between insulation cover plate and capacitor body.
Compared with the prior art, the utility model, owing to having adopted technique scheme, has extended the length of anode foil lower end on the basis of traditional structure, makes its lower end can be from being wound into that the lower end of the capacitor body of tubular structure is stretched out and contacting with the bottom surface of shell; Therefore heat can be by the outside Quick diffusing of shell, reduced the temperature of capacitor internal.The utility model has not only overcome the defects such as traditional energy storage aluminum capacitor heat dispersion is poor, temperature is high, internal resistance is large, anti-ripple current ability is low, and electrolyte consumption less, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: insulation cover plate 1, positive outside wire 2, cathode foil 3, electrolytic paper 4, shell 5, anode foil 6, negative outside wire 7, retainer ring 8, bonding pad 9, rivet 10.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in Figure 1: capacitor body seals and is pressed in this shell by the insulation cover plate 1 that is fixed on shell 5 ports, described capacitor body is reeled and is formed by cathode foil 3, electrolytic paper 4, anode foil 6, between cathode foil 3 and anode foil 6, by electrolytic paper 4, is isolated.Wherein, the upper end of cathode foil 3 and the upper end of anode foil 6 are longer than in the upper end of electrolytic paper 4, and the lower end of cathode foil 3 is longer than in the lower end of this electrolytic paper, and the lower end of electrolytic paper 4 is longer than in the lower end of anode foil 6; The anode foil 6 of stretching out from capacitor body lower end contacts with the bottom surface of shell 5.The negative outside wire 7 being fixed in anode foil 6 is connected with the inwall welding of shell 5, and the positive outside wire 2 being fixed in cathode foil 3 is connected by rivet 10 and bonding pad 9 riveteds that are positioned at insulation cover plate 1 surface.
In order to ensure anode foil 6 can with the bottom surface close contact of shell 5, between insulation cover plate 1 and capacitor body, have the retainer ring 8 of insulation; Insulation cover plate 1 can be pressed on capacitor body the bottom surface of shell 5 by this retainer ring.
Claims (2)
1. an energy storage capacitor, comprise and being fixed in shell by cathode foil, anode foil and the capacitor body that the electrolytic paper of described cathode foil and anode foil isolation is wound into tubular structure, by the insulation cover plate of described outer cover port sealing, be fixed on this insulation cover plate and by positive outside wire and the weld tabs that described cathode foil is connected, be connected to the negative outside wire between described anode foil and outer casing inner wall; It is characterized in that: the upper/lower terminal of electrolytic paper (4) is longer than the upper/lower terminal of cathode foil (3), the lower end of anode foil (6) is longer than the lower end of electrolytic paper (4) and is contacted with the bottom surface of shell (5); The bonding pad (9) being positioned on insulation cover plate (1) is affixed by rivet (10) and positive outside wire (2).
2. energy storage capacitor according to claim 1, is characterized in that: the retainer ring (8) that has insulation between insulation cover plate (1) and capacitor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638260.2U CN203503477U (en) | 2013-10-16 | 2013-10-16 | Energy-storage capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638260.2U CN203503477U (en) | 2013-10-16 | 2013-10-16 | Energy-storage capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203503477U true CN203503477U (en) | 2014-03-26 |
Family
ID=50334436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638260.2U Expired - Lifetime CN203503477U (en) | 2013-10-16 | 2013-10-16 | Energy-storage capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203503477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074747A (en) * | 2016-11-11 | 2018-05-25 | 东莞市东阳光电容器有限公司 | A kind of long life aluminum electrolytic capacitor |
-
2013
- 2013-10-16 CN CN201320638260.2U patent/CN203503477U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074747A (en) * | 2016-11-11 | 2018-05-25 | 东莞市东阳光电容器有限公司 | A kind of long life aluminum electrolytic capacitor |
| CN108074747B (en) * | 2016-11-11 | 2021-03-26 | 东莞市东阳光电容器有限公司 | Long-life aluminum electrolytic capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |