CN102412064A - Seal terminal cover plate of large-scale aluminum electrolytic capacitor and sealing method - Google Patents
Seal terminal cover plate of large-scale aluminum electrolytic capacitor and sealing method Download PDFInfo
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- CN102412064A CN102412064A CN2010102911595A CN201010291159A CN102412064A CN 102412064 A CN102412064 A CN 102412064A CN 2010102911595 A CN2010102911595 A CN 2010102911595A CN 201010291159 A CN201010291159 A CN 201010291159A CN 102412064 A CN102412064 A CN 102412064A
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- cover plate
- terminal cover
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- ring seal
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Abstract
A seal terminal cover plate of a large-scale aluminum electrolytic capacitor is formed by combining and pressing a phenolic aldehyde (or polyphenylene sulfide and the like) material and a terminal block or formed by fastening a sheet material synthesized by a rubber layer and a phenolic paper class material and a gasket through a welding terminal aluminum nail. During installing and sealing, a sealing rubber ring is compacted on positions of an outer edge of a circumference of the a terminal cover plate and an aluminum shell edge which contacts with a sealing part or a surface rubber layer is compacted on the aluminum shell edge so as to guarantee that a capacitor possesses a good air tightness. Using the above sealing mode and means, simultaneously, annular grooves are arranged on an inner side of a sealing rubber ring card slot of the side surface of the circumference of the terminal cover plate and on a end face of a parallel cover plate. The sealing rubber rings, which have a same shape with the groove is arranged in order to match with the grooves. During sealing, a trace is rolled from the outside to the inside on the position corresponding to an outboard of the aluminum shell. The sealing rubber ring is compacted so as to improve an air tightness grade of the capacitor and an ageing resistance level of the sealing part.
Description
Technical field:
The present invention relates to improve between large-scale aluminum electrolysis capacitor terminal cover plate and the aluminum hull terminal cover plate and the mouth-sealing method of sealing property and reliability.
Background technology:
At present; Large-scale aluminum electrolysis capacitor adopts phenolic aldehyde (perhaps polyphenylene sulfide etc.) material and binding post 3 combinations to press usually and forms the good terminal cover plate 2 of sealing property; Perhaps by the synthetic sheet material of rubber layer 1 and phenolic aldehyde paper-like materials and packing ring through the fastening terminal cover plate 2 that forms of welding terminal aluminium nail, as the closure fitment of capacitor cylinder aluminum hull openend.For making closure part have good air-tightness, need adopt to compress in terminal cover plate 2 circumference outers and contact site, aluminum hull 7 edge and seal rubber ring 4, perhaps the mode of aluminum hull 7 edge holddown plate plate surface rubber layers 1.
Guarantee to have between terminal cover plate 2 and the aluminum hull 7 good air-tightness and be aluminium electrolytic capacitor and have that excellent sealing performance is long-term to capacitor, reliable work is very crucial.
Because the reason that capacitor closure part encapsulant is aging, now large-scale aluminum electrolysis capacitor useful life length be about 15 years; And when the horizontal installation of capacitor, be operated under the vibration environment condition, it is also very high that electrolyte inside is revealed the probability that flows out from closure part.
Summary of the invention:
The present invention provides a kind of reliability high, guarantees design of large-scale aluminum electrolysis capacitor hermetic terminal cover plate and mouth-sealing method that the long-life uses.
The technical scheme that adopts is following: adopting the at present existing seal means of enforcement, method simultaneously; Seal rubber 4 (layer 1) inboard in terminal cover plate 2 circumference sides; Parallel cover plate 2 end faces are designed annular recess, and the supporting O-ring seal consistent with the annular recess shape 6.When sealing is installed, shut out roll mark 11, O-ring seal 6 is compressed, possess sealing property in cylinder aluminum hull 7 outside respective slot and O-ring seal position ecto-entad.
The enforcement of this technical scheme can improve the air-tightness grade greatly and slow down the aging progress of encapsulant, and air-tightness is sealed rubber layer 1 or rubber ring 4 by present individual layer and become multi-layer sealed glue-line and seal jointly; Sealant layer aging also because the increase of caulking gum layer, aging speed is retarded.
This technical scheme can effectively improve the capacitor sealing property, thereby prolongs capacitor useful life, and uses down at the vibration operational environment, when horizontal horizontal installations of capacitor, the probability that electrolyte is revealed outflow arrive reduction.
Description of drawings:
Fig. 1 is the terminal cover plate axial cross section sketch map that present large-scale bolt type (SCREW) aluminium electrolytic capacitor adopts usually.
Fig. 1-1 is the common installation of adopting of present large-scale bolt type (SCREW) aluminium electrolytic capacitor, seals the axial cross section sketch map.
Fig. 2 is the terminal cover plate axial cross section sketch map that present large-scale capillary formula (SNAP-IN) aluminium electrolytic capacitor adopts usually.
Fig. 2-1 is the common installation of adopting of present large-scale capillary formula (SNAP-IN) aluminium electrolytic capacitor, seals the axial cross section sketch map.
Fig. 3 designs multilayer rubber sealing terminal cover plate axial cross section sketch map for the present invention.
Fig. 3-1 does not have cover plate fixed bit roll mark cover plate and installs and to seal the axial cross section sketch map for the present invention designs multilayer rubber sealing.
Fig. 3-2 has the installation of cover plate fixed bit roll mark cover plate to seal the axial cross section sketch map for the present invention designs multilayer rubber sealing.
Fig. 4 designs the slim cover plate axial cross section of multilayer rubber sealing sketch map for the present invention.
Fig. 4-1 does not have cover plate location roll mark formula shorting stub terminal cover plate and installs and seal the axial cross section sketch map for the present invention designs multilayer rubber sealing.
Numeral is indicated among the figure:
1, seal rubber layer 2, one terminal cover plate 3, binding post 4, seal rubber ring
5, core bag-terminal lead 6, sealing rubber ring 7, aluminum hull 8, core bag
9, insulating sleeve 10, aluminum hull cover plate location are with roll mark 11, sealing roll mark
Embodiment:
In conjunction with accompanying drawing the present invention is further specified.
Embodiment 1:
By phenolic resin material and al wiring terminal 3 combination die casting all-in-one-piece terminal cover plates 2; Be provided with draw-in groove in terminal cover plate 2 outer circumference outers; Supporting have shape, size, volume consistent with draw-in groove seal rubber ring 4, in terminal cover plate 2 sides, sealing cushion rubber 4 draw-in groove inboards has annular groove; And supporting and annular groove shaped, sealing rubber ring of the same size 6, more than seal cushion rubber 4, O-ring seal 6 and constitute with injection moulding all-in-one-piece terminal board 2 and seal integral body with the terminal cover plate.Like Fig. 3.
Seal when installing with aluminum hull 7, confirm the position after, corresponding sealing draw-in groove and O-ring seal 6 positions in aluminum hull 7 outsides; Ecto-entad shuts out roll mark 11, and aluminum hull roll mark 11 compresses O-ring seal 6, makes capacitor possess air-tightness; And with the sealing roll mark 11 fix terminal cover plate 2; Along aluminum hull 7 edge ecto-entads, writing that surpasses all the others aluminum hull edge from top to bottom, compress and seal cushion rubber 4 again, make the capacitor seal location also possess air-tightness.Like Fig. 3-1.
The capacitor sealing process is accomplished, and has two cushion rubbers to guarantee the capacitor sealing property.
Embodiment 2:
By phenolic resin material and al wiring terminal 3 combination die casting all-in-one-piece terminal cover plates 2; Be provided with draw-in groove in terminal cover plate 2 outer circumference outers; Supporting have shape, size, volume consistent with draw-in groove seal rubber ring 4, in terminal cover plate 2 sides, sealing cushion rubber 4 draw-in groove inboards has annular groove; And supporting and annular groove shaped, the consistent sealing rubber ring 6 of volume, more than seal cushion rubber 4, O-ring seal 6 and constitute with injection moulding all-in-one-piece terminal board 2 and seal integral body with the terminal cover plate.Like Fig. 3.
Seal when installing with aluminum hull 7, utilize aluminum hull 7 existing cover plates location to fix terminal cover plate 2 positions,, compress and seal cushion rubber 4, make the capacitor seal location possess air-tightness along aluminum hull 7 edge ecto-entads, writing that surpasses all the others aluminum hull 7 edges from top to bottom with roll mark 10.Correspondence seals draw-in groove and O-ring seal 6 positions in aluminum hull 7 outsides again, and ecto-entad shuts out roll mark 11, and aluminum hull roll mark 11 compresses O-ring seal 6, makes capacitor strengthen air-tightness.Fig. 3-2.
The capacitor sealing process is accomplished, and has two cushion rubbers to guarantee the capacitor sealing property.
Embodiment 3:
By phenolic resin material and al wiring terminal 3 combination die casting all-in-one-piece terminal cover plates 2; Be provided with draw-in groove in terminal cover plate 2 outer circumference outers; Supporting have shape, size, volume consistent with draw-in groove seal rubber ring 4, in terminal cover plate 2 sides, sealing cushion rubber 4 draw-in groove inboards has annular groove; And supporting and annular groove shaped, sealing rubber ring of the same size 6, more than seal cushion rubber 4, O-ring seal 6 constitutes the integral body of sealing the terminal cover plate with injection moulding all-in-one-piece terminal board 2.For ease of sealing installment work; Under the precondition that guarantees terminal cover plate intensity, can shorten binding post length, and reduce binding post and medial extremity daughter board central thickness; Make terminal cover plate inside circumference outer protrusion, be used to seal and confirm the aluminum hull seal location when installing.Like Fig. 4.
Seal when installing with aluminum hull 7, confirm the position after, corresponding sealing draw-in groove and O-ring seal 6 positions in aluminum hull 7 outsides; Ecto-entad shuts out roll mark 11, and aluminum hull roll mark 11 compresses O-ring seal 6, makes capacitor possess air-tightness; And with the sealing roll mark 11 fix terminal cover plate 2; Along aluminum hull 7 edge ecto-entads, writing that surpasses all the others aluminum hull edge from top to bottom, compress and seal cushion rubber 4 again, make the capacitor seal location also possess air-tightness.Like Fig. 4-1.
The capacitor sealing process is accomplished, and has two cushion rubbers to guarantee the capacitor sealing property.
Claims (6)
1. the hermetic terminal cover plate and the mouth-sealing method of a large-scale aluminum electrolysis capacitor; The hermetic terminal cover plate adopts phenolic aldehyde (perhaps polyphenylene sulfide etc.) material to form with binding post combination pressure; Perhaps by the synthetic sheet material of rubber layer and phenolic aldehyde paper-like materials and packing ring through fastening the forming of welding terminal aluminium nail, install when sealing, need contact the closure part employing in terminal cover plate circumference outer with the aluminum hull edge and compress sealing rubber ring; The perhaps mode of aluminum hull edge pressing surface rubber layer; Guarantee that capacitor has good air-tightness, characteristic of the present invention is to seal cushion rubber draw-in groove inboard at terminal cover plate circumference face, and parallel cover plate end face has annular recess again; And the supporting O-ring seal consistent with groove shapes; The correspondence position ecto-entad shuts out roll mark in the aluminum hull outside when sealing, and O-ring seal is compressed, in order to improve capacitor air-tightness grade and the ageing-resistant level in sealing position.
2. the hermetic terminal cover plate and the mouth-sealing method of large-scale aluminum electrolysis capacitor according to claim 1; Hermetic terminal cover plate characteristic is that terminal cover plate circumference face has annular recess and supporting O-ring seal, and groove and O-ring seal cross section can be rule or irregular arbitrary shape.
3. according to the hermetic terminal cover plate and the mouth-sealing method of claim 1,2 described large-scale aluminum electrolysis capacitors; Hermetic terminal cover plate characteristic is that terminal cover plate circumference face has annular recess and supporting O-ring seal, and groove and O-ring seal can be that the wholecircle ring-type also can be semi-annular shape and other non-wholecircle ring-types.
4. according to the hermetic terminal cover plate and the mouth-sealing method of claim 1,2,3, described large-scale aluminum electrolysis capacitor; Hermetic terminal cover plate characteristic is that terminal cover plate circumference face has annular recess and supporting O-ring seal, and groove and O-ring seal can one also can be many.
5. the hermetic terminal cover plate and the mouth-sealing method of large-scale aluminum electrolysis capacitor according to claim 1; Utilize aluminum hull outside respective slot and O-ring seal position ecto-entad to shut out roll mark when sealing; O-ring seal is compressed, and roll mark can be a rule or irregularly shaped.
6. according to the hermetic terminal cover plate and the mouth-sealing method of claim 1,5 described large-scale aluminum electrolysis capacitors; Utilize aluminum hull outside respective slot and O-ring seal position ecto-entad to shut out roll mark when sealing; O-ring seal is compressed, and O-ring seal can be that the wholecircle annular also can be that semi-annular shape compresses and other non-wholecircle annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102911595A CN102412064A (en) | 2010-09-25 | 2010-09-25 | Seal terminal cover plate of large-scale aluminum electrolytic capacitor and sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102911595A CN102412064A (en) | 2010-09-25 | 2010-09-25 | Seal terminal cover plate of large-scale aluminum electrolytic capacitor and sealing method |
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| Publication Number | Publication Date |
|---|---|
| CN102412064A true CN102412064A (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102911595A Pending CN102412064A (en) | 2010-09-25 | 2010-09-25 | Seal terminal cover plate of large-scale aluminum electrolytic capacitor and sealing method |
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| CN (1) | CN102412064A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723210A (en) * | 2012-06-25 | 2012-10-10 | 南通新三能电子有限公司 | Shock-resistant large aluminum electrolytic capacitor |
| CN104485227A (en) * | 2014-12-22 | 2015-04-01 | 安徽赛福电子有限公司 | PPS (polyphenylene sulfide) plastic capacitor cover plate |
| CN107689301A (en) * | 2017-07-04 | 2018-02-13 | 佛山市英飞翎电子有限公司 | Aluminium electrolutic capacitor electric wire connecting junction |
| CN109671567A (en) * | 2019-01-29 | 2019-04-23 | 深圳江浩电子有限公司 | Sealing device and sealing method for inner ring of cover plate of high-capacity hollow bolt type aluminum capacitor |
| CN111492447A (en) * | 2017-12-28 | 2020-08-04 | 松下知识产权经营株式会社 | Capacitor with a capacitor element |
| WO2022151899A1 (en) * | 2021-01-15 | 2022-07-21 | 周旺龙 | Aluminum electrolytic capacitor integrated module |
| CN115101346A (en) * | 2022-07-22 | 2022-09-23 | 常州华威电子有限公司 | Manufacturing method of integrated formed bolt type cover plate for aluminum electrolytic capacitor |
-
2010
- 2010-09-25 CN CN2010102911595A patent/CN102412064A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723210A (en) * | 2012-06-25 | 2012-10-10 | 南通新三能电子有限公司 | Shock-resistant large aluminum electrolytic capacitor |
| CN104485227A (en) * | 2014-12-22 | 2015-04-01 | 安徽赛福电子有限公司 | PPS (polyphenylene sulfide) plastic capacitor cover plate |
| CN107689301A (en) * | 2017-07-04 | 2018-02-13 | 佛山市英飞翎电子有限公司 | Aluminium electrolutic capacitor electric wire connecting junction |
| CN111492447A (en) * | 2017-12-28 | 2020-08-04 | 松下知识产权经营株式会社 | Capacitor with a capacitor element |
| CN109671567A (en) * | 2019-01-29 | 2019-04-23 | 深圳江浩电子有限公司 | Sealing device and sealing method for inner ring of cover plate of high-capacity hollow bolt type aluminum capacitor |
| CN109671567B (en) * | 2019-01-29 | 2024-02-06 | 深圳江浩电子有限公司 | Sealing device and sealing method for inner ring of large-capacity hollow bolt type aluminum capacitor cover plate |
| WO2022151899A1 (en) * | 2021-01-15 | 2022-07-21 | 周旺龙 | Aluminum electrolytic capacitor integrated module |
| CN115101346A (en) * | 2022-07-22 | 2022-09-23 | 常州华威电子有限公司 | Manufacturing method of integrated formed bolt type cover plate for aluminum electrolytic capacitor |
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Application publication date: 20120411 |