CN1428801A - Electrolytic capacitor with terminal - Google Patents
Electrolytic capacitor with terminal Download PDFInfo
- Publication number
- CN1428801A CN1428801A CN 02160450 CN02160450A CN1428801A CN 1428801 A CN1428801 A CN 1428801A CN 02160450 CN02160450 CN 02160450 CN 02160450 A CN02160450 A CN 02160450A CN 1428801 A CN1428801 A CN 1428801A
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- CN
- China
- Prior art keywords
- rivet
- paper tinsel
- pad
- aluminium
- anode
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- 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.)
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Abstract
An electrolytic capacitor with terminal, can lower the contact resistance value at fixing of lead foil to a rivet by caulking the foil to the rivet through a washer and, in addition, to make the presence/absence of the washer confirmable easily and visually, even after the foil is caulked. At fixing of the lead foil to the rivet of a sealing plate by caulking the foil to the rivet through the washer, the washer is made to have at least one rugged surface, containing a plurality of recessed sections and/or projecting sections. In addition, the side face of the washer is formed to a rugged surface to reflect light irregularly.
Description
Technical field
The present invention relates to the electrolytic capacitor of band edge such as weld tabs terminal type electrolytic capacitor or end of thread subtype electrolytic capacitor, more particularly, employed pad when relating to the rivet of a kind of lead-in wire paper tinsel rivet clasp that will draw from capacitor core on being arranged on cap liner.
Background technology
The electrolytic capacitor of band edge is because the electric parameters of its processing is bigger, and therefore, what the outer lead-in wire of capacitor core used is banded lead-in wire paper tinsel, and what sealing part used is the cap liner that is made of the hard resin sheet.
On cap liner, a pair of rivet is breakthrough status to be fixed, and banded outer lead-in wire paper tinsel is connected with rivet in the inside of capacitor case, guides to the outside via this rivet.
Its general example of structure is shown in Fig. 3.As known in the figure, the electrolytic capacitor of band edge possesses the metal shell cylindraceous 1 with base plate, accommodates capacitor core 2 in this metal shell 1, is fixed with fixtures such as pitch 3 in case of necessity.
On the anode foils of capacitor core 2 and Cathode Foil, be separately installed with the outer lead-in wire paper tinsel 4,5 of the band shape that constitutes by aluminium.
The peristome of metal shell 1 is the air-tightness shutoff by cap liner 6, and for the electrolytic capacitor of band edge, and usually, cap liner 6 uses is phenolic resins and so on the hard resin sheet 6a that is laminated with sheet rubber 6b above it.
On cap liner 6, a pair of rivet (aluminum rivet) 7,8 is breakthrough status to be fixed.
On the end of the outside that is positioned at metal shell 1 of rivet 7,8, be separately installed with weld tabs terminal 7a, 8a.And, for example adopt negative thread to substitute weld tabs terminal 7a, 8a for end of thread subtype electrolytic capacitor.
On the end of the inside that is positioned at metal shell 1 of rivet 7,8, be formed with diameter head 7b, the 8b thinner than rivet body, each outer lead-in wire paper tinsel 4,5 rivet clasps with head 7b, the 8b of the corresponding rivet of its polarity on.
That is, the end perforate of lead-in wire paper tinsel 4,5 makes head 7b, the 8b of rivet pass this hole outside each, overlap thereon Upper gasket 9 make it with the hole overlapping after, the tap the head 7b of portion, 8b of riveting pounded it flat and fixed.At this moment, pad 9 uses for preventing the paillon foil fracture.
Through this rivet clasp, with regard to mechanical strength, has very high reliability, aspect vibration resistance, can not go wrong, but, owing to cushion pad 9 in the middle of outward between lead-in wire paper tinsel 4,5 and the rivet 7,8, therefore, not only contact resistance value increases, and owing to the difference of riveting pressure causes contact resistance value to exist discreteness.
In addition, rivet 7,8, lead-in wire paper tinsel 4,5 and pad 9 constitutes by aluminium outward, presents identical color, therefore particularly is difficult to have or not (whether forget and put into) by Visual Confirmation pad 9 after riveted joint.
Summary of the invention
Therefore, task of the present invention is, in the electrolytic capacitor of band edge, make will outside lead-in wire cushion the discreteness that reduces contact resistance value when the contact resistance value of pad rivet clasp on rivet the time reduces in the middle of the paper tinsel, and, after the rivet clasp, be easy to having or not by the Visual Confirmation pad.
For realizing above-mentioned task, the present invention is a kind of electrolytic capacitor of band edge, comprise and to serve as a contrast release paper around the capacitor core that forms by anode foils and the two centre of Cathode Foil that aluminium constitutes, lead-in wire paper tinsel outside lead-in wire paper tinsel and the negative electrode outside the anode of the band shape that constitutes by aluminium that said anode foils and said Cathode Foil are drawn respectively, the metal shell of tubular that holds the end sealing of said capacitor core, the cap liner that the peristome of said metal shell is the air-tightness shutoff, and on said cap liner, be the fixing a pair of rivet that constitutes by aluminium of breakthrough status, said each rivet is formed with the thinner head of diameter at it on outstanding end, the inside of said metal shell, said anode go between outward paper tinsel and said negative electrode go between outward cushion aluminum in the middle of the paper tinsel pad respectively rivet clasp on the said head of said each rivet, it is characterized in that at least one face in the tow sides of said pad forms as the uneven surface that includes a plurality of recesses and/or protuberance.
According to this structure, the surface area of pad ratio increases when making tabular surface, and pad contacts with the paper tinsel that goes between outward with bigger face, and therefore, correspondingly, the discreteness of contact resistance value also reduces when contact resistance value reduces.And mechanical strength improves.
Preferably, the tow sides of pad are uneven surface.Concavo-convex shape is arbitrarily.The pit or the projection that are taper shape or rectangular pyramid shape with employing are advisable, but also can be circular fin or lattice-shaped fin.
For metal materials such as aluminium, uneven surface and tabular surface can make a distinction by visual being easy to.Usually, the head of pad after than rivet is big, therefore, can be discerned by the peripheral edge portion of pad.
Therefore, by at least one face of pad is made uneven surface, just can be, and according to better form of the present invention by the having or not of visual examination pad, not only pad positive and/or reverse side, and the side of pad also forms as uneven surface.Utilize the uneven surface of this side, make having or not of Visual Confirmation pad become more easy.
In this sense, the uneven surface of side is preferably by the concavo-convex of light scattering constituted.In addition, only the side of pad is carried out, can make its uneven surface that plays the effect that makes light scattering handle (, as carrying out handling) to be also included among the present invention by the small concavo-convex pears surface that constitutes as an example.
Description of drawings
Fig. 1 is the amplification stereogram of an example of the pad that electrolytic capacitor had of band edge of the present invention.
Fig. 2 is to use said pad to go between outward key diagram that the step of paper tinsel rivet clasp on rivet describe.
Fig. 3 is the cutaway view as the electrolytic capacitor of band edge of prior art example.
Embodiment
Below, in conjunction with Fig. 1 and Fig. 2 preferred implementation of the present invention is described.Fig. 2 is the key diagram that the step of paper tinsel rivet clasp on the anode-side rivet that will go between outward described, and for the cathode side rivet, carries out in the same manner with anode-side,, the inscape of cathode side rivet one side is indicated in the bracket for this reason.In addition, the overall construction drawing of the basic structure of the electrolytic capacitor of band edge self Fig. 3 that can illustrate with reference to the front.
At first, with reference to the amplification stereogram of Fig. 1, employed pad 10 is made of aluminium among the present invention, and it has been implemented uneven surface processing.So-called uneven surface processing, be meant a certain or recess that on smooth face, forms in recess and the protuberance and protuberance the two.
As an example, can by such instrument of awl or mould on aluminium, form a plurality of holes (recess) thus should the surface as uneven surface, but also can adopt sand-blast and chemical method for etching.
Increase contact area with respect to lead-in wire paper tinsel 4 (5) outward to reduce contact resistance value, preferably portal, but will obtain to make the matsurface of light scattering, we can say to adopt mould, sand-blast and chemical method for etching for well with the manufacturing of awl and so on instrument.
Reduce contact resistance value outward with respect to the paper tinsel 4 (5) that goes between, process as uneven surface, as long as at least some faces of the obverse and reverse of pad 10 are implemented, but in order further to reduce contact resistance value, in this embodiment, the tow sides of pad 10 have been implemented uneven surface processing.In addition, in order to make having or not of riveted joint back Visual Confirmation pad more easy, uneven surface processing has also been implemented in the side (side face) of pad 10.
Below, in conjunction with Fig. 2, the method for paper tinsel rivet clasp on rivet that just will go between outward describes.Illustrate as preceding, rivet 7 (8) on outstanding end, the inside of metal shell 1, be formed with the diameter head 7b (8b) thinner than rivet body.In addition, the rivet 7 (8) and the paper tinsel 4 (5) that goes between outward also are made of aluminium.
At first, shown in Fig. 2 (a), offer hole 4a (5a) on the end of lead-in wire paper tinsel 4 (5) outside.In this example, be with 3 outward the lead-in wire paper tinsels 4 (5) leading section separately overlapping after through ultrasonic bonding make their in conjunction with after, offer hole 4a's (5a).
Afterwards, make the head 7b (8b) of rivet 7 (8) pass this hole 4a (5a), and then with pad 10 be enclosed within head 7b (8b) go up and make it with the paper tinsel 4 (5) of going between outward overlapping after, shown in Fig. 2 (b), head 7b (8b) hit by riveting it is pounded flat, will go between outward paper tinsel 4 (5) and pad 10 are fixed on the rivet 7 (8) together.
Like this since be formed with on the tow sides of pad 10 concavo-convex, therefore, when riveting, with respect to the contact area of lead-in wire paper tinsel 4 (5) outward increase, contact resistance value reduces, simultaneously, the discreteness of contact resistance value also is suppressed in the very little scope.
In addition, because the side of pad 10 is a scattering surface, therefore, even if go between outward paper tinsel 4 (5) and rivet 7 (8) are all aluminium, also can be easy among them, identify pad 10, with transducer having or not of pad 10 be discerned automatically and also become easy by visual.
As concrete example, pad for external diameter 5.0mm, internal diameter 2.7mm, thickness 0.8mm, on each face, form the rectangular pyramid hole of about 50 (two face about 100) length of side 0.2mm, degree of depth 0.05mm, compare with the pad of the same size that has an even surface, can make contact resistance value reduce about 0.4m Ω.And, can make the maximum of contact resistance value and the difference between the minimum value be reduced to 0.139m Ω from 0.159m Ω.
In addition, the side of pad becomes good light scattering face behind the hole (recess) that to form a plurality of more small average diameters be 0.1mm, even after riveting, also can be easy to confirm having or not of pad by visual.
As described above, according to the present invention, in the electrolytic capacitor of band edge, will outside lead-in wire when cushioning on the rivet of pad rivet clasp at cap liner in the middle of the paper tinsel, by using the pad of making the uneven surface that includes a plurality of recesses and/or protuberance to major general one side's face, not only can reduce pad with respect to the contact resistance of paper tinsel that goes between outward, and the discreteness of contact resistance value is tended towards stability.
In addition, by the side of pad also being made the light scattering face of non-flat forms, even make after riveted joint, also having or not by the Visual Confirmation pad like a cork.
Claims (3)
1. the electrolytic capacitor of band edge, comprise and to serve as a contrast release paper around the capacitor core that forms by anode foils and the two centre of Cathode Foil that aluminium constitutes, draw outside the anode of the band shape that constitutes by aluminium of said anode foils and said Cathode Foil lead-in wire paper tinsel outside the lead-in wire paper tinsel and negative electrode respectively, the metal shell of tubular that holds the end sealing of said capacitor core, the cap liner that the peristome of said metal shell is the air-tightness shutoff, and on said cap liner, be the fixing a pair of rivet that constitutes by aluminium of breakthrough status, said each rivet is formed with the thinner head of diameter at it on outstanding end, the inside of said metal shell, said anode go between outward paper tinsel and said negative electrode go between outward cushion aluminum in the middle of the paper tinsel pad respectively rivet clasp on the said head of said each rivet, it is characterized in that
At least one face in the tow sides of said pad forms as the uneven surface that includes a plurality of recesses and/or protuberance.
2. as the electrolytic capacitor of said band edge of claim 1, it is characterized in that the side of said pad also forms as uneven surface.
3. the electrolytic capacitor of band edge, comprise and to serve as a contrast release paper around the capacitor core that forms by anode foils and the two centre of Cathode Foil that aluminium constitutes, draw outside the anode of the band shape that constitutes by aluminium of said anode foils and said Cathode Foil lead-in wire paper tinsel outside the lead-in wire paper tinsel and negative electrode respectively, the metal shell of tubular that holds the end sealing of said capacitor core, the cap liner that the peristome of said metal shell is the air-tightness shutoff, and on said cap liner, be the fixing a pair of rivet that constitutes by aluminium of breakthrough status, said each rivet is formed with the thinner head of diameter at it on outstanding end, the inside of said metal shell, said anode go between outward paper tinsel and said negative electrode go between outward cushion aluminum in the middle of the paper tinsel pad respectively rivet clasp on the said head of said each rivet, it is characterized in that
The side of said pad forms with uneven surface as the light scattering that includes a plurality of recesses and/or protuberance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP400098/01 | 2001-12-28 | ||
| JP2001400098A JP4139941B2 (en) | 2001-12-28 | 2001-12-28 | Electrolytic capacitor with terminal |
| JP400098/2001 | 2001-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1428801A true CN1428801A (en) | 2003-07-09 |
| CN100367422C CN100367422C (en) | 2008-02-06 |
Family
ID=19189569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021604509A Expired - Fee Related CN100367422C (en) | 2001-12-28 | 2002-12-30 | Electrolytic capacitor with terminal |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4139941B2 (en) |
| CN (1) | CN100367422C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753952A (en) * | 2009-06-17 | 2012-10-24 | 史密斯检测蒙特利尔股份有限公司 | Particle collection device |
| CN109817462A (en) * | 2019-04-11 | 2019-05-28 | 寿乐鹏 | A kind of aluminium electrolutic capacitor |
| CN111785522A (en) * | 2019-04-02 | 2020-10-16 | 特柏斯电子有限公司 | Sealing body for capacitor, method for manufacturing the same, and capacitor |
| CN111937107A (en) * | 2018-04-06 | 2020-11-13 | Tdk电子股份有限公司 | Electrolytic capacitor with improved connection |
| CN111937108A (en) * | 2018-04-06 | 2020-11-13 | Tdk电子股份有限公司 | Electrolytic capacitor with improved connection |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7207760B2 (en) * | 2001-12-06 | 2007-04-24 | Junkers John K | Washer and fastener provided with a washer |
| JP2011204725A (en) * | 2010-03-24 | 2011-10-13 | Hitachi Aic Inc | Aluminum electrolytic capacitor |
| KR101791988B1 (en) * | 2016-05-23 | 2017-10-31 | 주식회사 비츠로셀 | Electric double layer capacitor with excellent contact resistance property |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2666217B2 (en) * | 1988-06-13 | 1997-10-22 | 日本ケミコン株式会社 | Manufacturing method of electrolytic capacitor |
| JPH09129519A (en) * | 1995-10-30 | 1997-05-16 | Matsushita Electric Ind Co Ltd | Electrolytic capacitor with safety mechanism |
-
2001
- 2001-12-28 JP JP2001400098A patent/JP4139941B2/en not_active Expired - Fee Related
-
2002
- 2002-12-30 CN CNB021604509A patent/CN100367422C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753952A (en) * | 2009-06-17 | 2012-10-24 | 史密斯检测蒙特利尔股份有限公司 | Particle collection device |
| CN102753952B (en) * | 2009-06-17 | 2016-01-13 | 史密斯检测蒙特利尔股份有限公司 | Particle collection device |
| US9415339B2 (en) | 2009-06-17 | 2016-08-16 | Smiths Detection Montreal Inc. | Particle collection device |
| CN111937107A (en) * | 2018-04-06 | 2020-11-13 | Tdk电子股份有限公司 | Electrolytic capacitor with improved connection |
| CN111937108A (en) * | 2018-04-06 | 2020-11-13 | Tdk电子股份有限公司 | Electrolytic capacitor with improved connection |
| US11437197B2 (en) | 2018-04-06 | 2022-09-06 | Tdk Electronics Ag | Electrolytic capacitor with improved connection part |
| US11456119B2 (en) | 2018-04-06 | 2022-09-27 | Tdk Electronics Ag | Electrolytic capacitor with improved connection part |
| CN111785522A (en) * | 2019-04-02 | 2020-10-16 | 特柏斯电子有限公司 | Sealing body for capacitor, method for manufacturing the same, and capacitor |
| CN109817462A (en) * | 2019-04-11 | 2019-05-28 | 寿乐鹏 | A kind of aluminium electrolutic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4139941B2 (en) | 2008-08-27 |
| JP2003197473A (en) | 2003-07-11 |
| CN100367422C (en) | 2008-02-06 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20080206 Termination date: 20141230 |
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| EXPY | Termination of patent right or utility model |