CN101859646B - Manufacturing method of full tantalum shell tantalum electrolytic capacitor and capacitor - Google Patents
Manufacturing method of full tantalum shell tantalum electrolytic capacitor and capacitor Download PDFInfo
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- CN101859646B CN101859646B CN2010101479918A CN201010147991A CN101859646B CN 101859646 B CN101859646 B CN 101859646B CN 2010101479918 A CN2010101479918 A CN 2010101479918A CN 201010147991 A CN201010147991 A CN 201010147991A CN 101859646 B CN101859646 B CN 101859646B
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Abstract
The invention relates to a manufacturing method of a full tantalum shell tantalum electrolytic capacitor and the capacitor. The capacitor is sealed by a cylindrical metal tantalum shell, has a hermetically sealed structure and is a monolithic capacitor. The capacitor is characterized in that the capacitor is the capacitor assembled by bolts. The method comprises the following steps of: firstly, preparing full tantalum insulators with bolts, wherein the bolts are made of metal tantalum pipes, a tantalum wire passes through the center of each bolt, and insulation glass powder is sintered between the tantalum wires and the tantalum bolts to play insulation action; secondly, inversely placing the bolts on a fixture, covering a tantalum cover with six apertures on six protuberant pins of each bolt, and welding and fusing the apertures of the tantalum cover and the six pins of the bolt with a laser welding machine or an argon arc welding machine to complete the full tantalum insulators; and finally, loading a plurality of assembled tantalum anodes and cathodes into the cylindrical metal tantalum shell, welding the anodes and the tantalum wires in the bolts, welding the cathodes and the tantalum shell, and a PTFE gasket for fixing and thus obtaining the bolt-connected full tantalum shell tantalum electrolytic capacitor.
Description
Technical field
The present invention relates to a kind of preparation method and device of electronic component, especially a kind of hermetic seal type adopts the manufacture method and the capacitor of the full tantalum shell tantalum electrolytic capacitor of bolt mounting means.
Background technology
Tantalum electric capacity is for being anode material processing electrolytic capacitor with pure tantalum powder, and the advantage of tantalum capacitor is an electric performance stablity, and is that volume is little and can reach product than high capacitance in all capacitors.The tantalum capacitor profile is varied, and makes easily and be suitable for surface-pasted small-sized and sheet type element.The needs that adapted to present electronic technology automation and miniaturization development.At present the tantalum electrolytic capacitor of producing mainly contains three kinds of slug type solid, paper tinsel shape coiling solid, slug type liquid etc., and wherein the slug type solid accounts for more than 95% of present production, and based on the resin-encapsulated formula of nonmetal closed type.Miniaturization, chip type cooperate under the SMT technology in the ascendant, and chip sintering tantalum capacitor becomes main flow gradually.Traditional monomer tantalum electrolytic capacitor is axial lead-out mode, and often adopts compound mode in parallel to obtain big capacity.The composite type tantalum capacitor is generally box structure, and a plurality of tantalum electrolytic capacitors of axially drawing are equipped with in its inside, and its volume is still bigger, and requisite space is big when installing on circuit board, is unfavorable for the further miniaturization of electronic equipment.Therefore necessaryly further studied.
Summary of the invention
Purpose of the present invention is exactly the deficiency at existing monomer tantalum electrolytic capacitor, provides a kind of and can further dwindle the tantalum electrolytic capacitor volume, can make the manufacture method and the capacitor of the full tantalum shell tantalum electrolytic capacitor of the further miniaturization of tantalum electrolytic capacitor.
The present invention solves and inscribes the technical scheme that is adopted between its technology and be: a kind of manufacture method of full tantalum shell tantalum electrolytic capacitor, adopt the encapsulation of cylindrical metal tantalum shell, and be the hermetic seal structure, and be monolithic capacitor.Capacitor is for adopting the capacitor of bolt as mounting means.The full tantalum insulator that at first prepares strap bolt, bolt adopt the metal tantalum pipe to make, and the centre has tantalum wire to pass, and sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect; Earlier bolt is inverted on the anchor clamps, will has the tantalum of six apertures to cover on the pin of six projections that are buckled in bolt again, the aperture of tantalum lid and six pins welding on the bolt are fused, promptly finish the making of full tantalum insulator part with laser-beam welding machine or argon arc welding machine.To combine several pieces tantalum anodes and negative electrode again packs in the cylindrical metal tantalum shell, and with the welding of the tantalum wire in anodal and the bolt, with negative pole and the welding of tantalum shell, add poly-Tetrafluoro spacer again and fix again, promptly obtain bolt interconnection system full tantalum shell tantalum electrolytic capacitor of the present invention.
A kind of full tantalum shell tantalum electrolytic capacitor that is proposed according to the method described above, comprise a columniform metal tantalum shell, and the lead-out wire of both positive and negative polarity arranged at an upper portion thereof, it is characterized in that: capacitor is a hermetic seal type full tantalum shell encapsulation tantalum electrolytic capacitor, on capacitor, cover and be connected with the bolt that a metal tantalum pipe is made, bolt inside has a tantalum wire to pass from central authorities, sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect, the upper end cover of bolt and capacitor forms incorporate full tantalum insulator with method for laser welding; The shell of whole capacitor device is negative pole, and negative pole is drawn from the nickel lead-out tablet that is welded on the bolt.In the metal tantalum shell, be packaged with the tantalum anode or the negative electrode of a plurality of parallel connections or series connection.
The invention has the advantages that: this capacitor is installed on the circuit board by standing upside down in punching back on the circuit board in the installation on the circuit board, with screw fixed capacitor body is installed, reduced capacitor installation volume on circuit board effectively, and lead-out mode can satisfy the requirement that discharges and recharges of big electric current.
Description of drawings
Fig. 1 is the outside drawing of patent capacitor of the present invention;
Among Fig. 1: 1, positive pole 2, negative pole lead-out tablet 3, metallic gasket 4, poly-Tetrafluoro spacer 5, installation nut.
Fig. 2 is the structure chart of patent capacitor of the present invention.
Among Fig. 2: 1, positive pole 2, negative pole lead-out tablet 4, poly-Tetrafluoro spacer 5, installation nut 6, tantalum anode 7, tantalum bolt 8, tantalum shell 9, anode.
Fig. 3 is the exploded view of capacitor insulator of the present invention.
Among Fig. 3: 1, anodal tantalum wire 10, pin 7, tantalum bolt 11, glass insulator 12, square hole 13, tantalum lid.
Fig. 4 is the overall diagram of strap bolt insulator.
Among Fig. 4: 1, anodal tantalum wire 2, pin and square hole weld 3, tantalum bolt 4, tantalum lid.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
A kind of manufacture method of full tantalum shell tantalum electrolytic capacitor adopts the encapsulation of cylindrical metal tantalum shell, is the hermetic seal structure, and is monolithic capacitor.Capacitor is for adopting the capacitor of bolt as mounting means.The full tantalum insulator that at first prepares strap bolt, bolt adopt the metal tantalum pipe to make, and the centre has tantalum wire to pass, and sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect; Earlier bolt is inverted on the anchor clamps, will has the tantalum of six apertures to cover on the pin of six projections that are buckled in bolt again, the aperture of tantalum lid and six pins welding on the bolt are fused, promptly finish the making of full tantalum insulator part with laser-beam welding machine or argon arc welding machine.To combine several pieces tantalum anodes and negative electrode again packs in the cylindrical metal tantalum shell, and with the welding of the tantalum wire in anodal and the bolt, with negative pole and the welding of tantalum shell, add poly-Tetrafluoro spacer again and fix again, promptly obtain bolt interconnection system full tantalum shell tantalum electrolytic capacitor of the present invention.
A kind of full tantalum shell tantalum electrolytic capacitor that is proposed according to the method described above as shown in Figure 1, comprise a columniform metal tantalum shell, and the lead-out wire of both positive and negative polarity arranged at an upper portion thereof, it is characterized in that: capacitor is a hermetic seal type full tantalum shell encapsulation tantalum electrolytic capacitor, on capacitor, cover and be connected with the bolt that a metal tantalum pipe is made, bolt inside has a tantalum wire to pass from central authorities, sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect, the upper end cover of bolt and capacitor forms incorporate full tantalum insulator with method for laser welding; The shell of whole capacitor device is negative pole, and negative pole is drawn from the nickel lead-out tablet that is welded on the bolt.In the metal tantalum shell, be packaged with the tantalum anode or the negative electrode of a plurality of parallel connections or series connection.Tantalum has covered 6 apertures, and six pins, 2 welding on aperture and the bolt fuse together.
Patent indication tantalum electrolytic capacitor of the present invention is a kind of tantalum electrolytic capacitor that adopts bolt to install, the construction bolt manufacture method is as shown in Figure 3 and Figure 4: cover on capacitor and be connected with the bolt that a metal tantalum pipe is made, bolt inside has a tantalum wire to pass from central authorities, sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect, bolt and capacitor upper end cover are formed full tantalum insulator.Optional during making bolt 3 is inverted on the anchor clamps, will has the tantalum lid 6 of six apertures to be buckled on the bolt 3 again, meet sb. at the airport six pins, the 2 welding fusions on aperture 5 and the bolt, promptly finish the making of insulator part with laser-beam welding machine or argon arc welding.
Fig. 2 is capacitor arrangement figure, negative electrode 5, barrier film, anode 4 are packed in the tantalum shell 6 successively, also can will combine in the disposable tantalum shell 6 of packing into of several pieces tantalum anodes and negative electrode, positive wire 8 welding with tantalum anode and capacitor, again with negative pole and shell 6 welding and fixing, the strap bolt insulator of making is pressed into tantalum shell 6, and welded seal promptly obtains patent strap bolt full tantalum shell tantalum electrolytic capacitor of the present invention.
The strap bolt full tantalum shell tantalum electrolytic capacitor that patent of the present invention provided is a kind of hermetic seal type tantalum electrolytic capacitor, the tantalum anode of portion and negative electrode can adopt the connecting mode of parallel connection or series connection within it, to obtain bigger capacity or higher voltage, its heap(ed) capacity specification product can reach 10V50000uF, the ceiling voltage product can be 125V3300uF etc., can bear high current charge-discharge.
Claims (4)
1. the manufacture method of a full tantalum shell tantalum electrolytic capacitor adopts the encapsulation of cylindrical metal tantalum shell, is the hermetic seal structure, and is monolithic capacitor; It is characterized in that: capacitor is for adopting the capacitor of bolt as mounting means; The full tantalum insulator that at first prepares strap bolt, bolt adopt the metal tantalum pipe to make, and the centre has tantalum wire to pass, and sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect; Earlier bolt is inverted on the anchor clamps, will has the tantalum of six apertures to cover on the pin of six projections that are buckled in bolt again, the aperture of tantalum lid and six pins welding on the bolt are fused, promptly finish the making of full tantalum insulator part with laser-beam welding machine or argon arc welding machine; To combine several pieces tantalum anodes and negative electrode again and pack in the cylindrical metal tantalum shell, and with the tantalum wire welding in anodal and the bolt, and, add again and gather Tetrafluoro spacer and fix, promptly obtain bolt interconnection system full tantalum shell tantalum electrolytic capacitor again with negative pole and the welding of tantalum shell.
2. full tantalum shell tantalum electrolytic capacitor of making according to the manufacture method of the described full tantalum shell tantalum electrolytic capacitor of claim 1, comprise a columniform metal tantalum shell, and the lead-out wire of both positive and negative polarity arranged at an upper portion thereof, it is characterized in that: capacitor is a hermetic seal type full tantalum shell encapsulation tantalum electrolytic capacitor, on capacitor, cover and be connected with the bolt that a metal tantalum pipe is made, bolt inside has a tantalum wire to pass from central authorities, sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect, the upper end cover of bolt and capacitor forms incorporate full tantalum insulator with method for laser welding; The shell of whole capacitor device is negative pole, and negative pole is drawn from the nickel lead-out tablet that is welded on the bolt.
3. full tantalum shell tantalum electrolytic capacitor as claimed in claim 2 is characterized in that: tantalum anode and negative electrode in capacitor inside adopt connecting mode in parallel or series connection.
4. full tantalum shell tantalum electrolytic capacitor as claimed in claim 2 is characterized in that: tantalum has covered 6 apertures, and six pin welding on aperture and the bolt fuse together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101479918A CN101859646B (en) | 2010-04-16 | 2010-04-16 | Manufacturing method of full tantalum shell tantalum electrolytic capacitor and capacitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101479918A CN101859646B (en) | 2010-04-16 | 2010-04-16 | Manufacturing method of full tantalum shell tantalum electrolytic capacitor and capacitor |
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| CN101859646A CN101859646A (en) | 2010-10-13 |
| CN101859646B true CN101859646B (en) | 2011-12-14 |
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| CN104916442B (en) * | 2015-06-16 | 2017-12-19 | 北京七一八友益电子有限责任公司 | The compound tantalum capacitor of Combined type energetic and its manufacture method |
| CN105097288B (en) * | 2015-09-25 | 2018-06-29 | 株洲宏达电子股份有限公司 | A kind of Metal Packaging structural sheet type tantalum capacitor and its packaging method |
| CN110957139B (en) * | 2019-11-18 | 2023-11-21 | 湖南华冉科技有限公司 | Tantalum capacitor shell |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2703316Y (en) * | 2004-04-28 | 2005-06-01 | 欧阳一凤 | High-energy tantalum mixed capacitor |
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| JPS6036091B2 (en) * | 1977-11-14 | 1985-08-19 | 日本ケミコン株式会社 | Method for manufacturing harmech seals |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2703316Y (en) * | 2004-04-28 | 2005-06-01 | 欧阳一凤 | High-energy tantalum mixed capacitor |
Non-Patent Citations (1)
| Title |
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| JP昭54-68968A 1979.06.02 |
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Address after: 412011 Zhuzhou, Jiangsu Province, South China Road, East District, No. 1297 Patentee after: ZHUZHOU HONGDA ELECTRONICS CO.RP., LTD. Address before: 412011 Zhuzhou, Jiangsu Province, South China Road, East District, No. 1297 Patentee before: Zhuzhou Hongda Electronics Co., Ltd. |