CN201570383U - Glass capping group for fully-sealed mixed tantalum capacitor - Google Patents
Glass capping group for fully-sealed mixed tantalum capacitor Download PDFInfo
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- CN201570383U CN201570383U CN2009202456598U CN200920245659U CN201570383U CN 201570383 U CN201570383 U CN 201570383U CN 2009202456598 U CN2009202456598 U CN 2009202456598U CN 200920245659 U CN200920245659 U CN 200920245659U CN 201570383 U CN201570383 U CN 201570383U
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- positive terminal
- tantalum capacitor
- hermetically sealed
- capping group
- plumb joint
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Abstract
The utility model relates to a glass capping group for a fully-sealed mixed tantalum capacitor, which comprises an upper cover and a positive terminal, wherein a through hole is formed in the center of the upper cover, and the positive terminal perpendicularly passes through the central through hole of the upper cover. A vitreous body is filled between the positive terminal and the wall of the central through hole of the upper cover, and a soldered joint capable of enlarging the welding surface is arranged at the lower end head of the positive terminal. The utility model has reasonable and simple structure, low cost and high reliability, solves the defects of the prior art on the aspect of the welding structurally and the turn-out problem of the fully-sealed mixed tantalum capacitor in the vibration test and the leakage problem of the high-capacity fully-sealed mixed tantalum capacitor during the welding process, improves the reliability of the high-capacity fully-sealed mixed tantalum capacitor, and prolongs the service life thereof.
Description
Technical field
The utility model belongs to capacitor sealing insulator field, relates to a kind of capacitor glass sealing-in lid group, especially a kind of hermetically sealed mixing tantalum capacitor glass capping group.
Background technology
Tantalum electrolytic capacitor is the storage unit of energy in the precision electronic device device line, and it is widely used in aerospace field.The big hermetically sealed mixing tantalum capacitor of capacity is a kind of tantalum capacitor that combines with electrochemical capacitor and tantalum electrolytic capacitor, and unit volume self-energy density is about 0.9～1J/cm
3Even higher, relative volume is little, and is in light weight, and the therefore big hermetically sealed mixing tantalum capacitor of capacity has great application prospect and market development potentiality in fields such as Aero-Space, precision instruments.Glass capping group is the critical component of the hermetically sealed mixing tantalum capacitor of big capacity, and the quality of its sealing property and structure directly influences the reliability and the useful life of tantalum capacitor.
At present, the hermetically sealed mixing tantalum capacitor lid of traditional big capacity group switching centre post is a Φ 1.0mm stem stem, in welding process tantalum capacitor anode block lead-in wire and newel overlap joint are welded, its shortcoming is: because center pole and anode tap all very thin (general diameter is less than Φ 1.0mm), bonding area is less, intensity is not high, when the welding of a plurality of anode taps and positive terminal occurring especially, when the hermetically sealed mixing tantalum capacitor of big capacity carries out vibration test, occurring welding easily comes off, the generation capacitor opens circuit, and influences its use; In addition, welding process causes bursting of glass easily, makes the hermetically sealed mixing tantalum capacitor of big capacity problems such as leakage occur.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of hermetically sealed mixing tantalum capacitor glass capping group is provided, this glass sealing lid group is passed through the structure-optimized design to the plumb joint of positive terminal lower end, effectively increased bonding area, thereby can increase the bonding area between hermetically sealed mixing tantalum capacitor glass capping group and the anode tap, the weld strength of lead-in wire and center pole intercolumniation can be improved, the contact resistance of lead-in wire and center pole can be reduced again.
The purpose of this utility model solves by the following technical programs:
This hermetically sealed mixing tantalum capacitor glass capping group, comprise loam cake and positive terminal, the center of described loam cake is provided with through hole, positive terminal vertically passes the central through hole of loam cake, be filled with vitreum between the central through hole hole wall of positive terminal and loam cake, the lower end of positive terminal is provided with the plumb joint that has increased solder side.
Further, the utility model preferably is embodied as: plumb joint is fan-shaped flat structure, and the fan-shaped plan of described plumb joint is vertical with loam cake.
The plumb joint and the positive terminal of above-mentioned fan-shaped flat structure are integral structure.
Further, another preferably is embodied as the utility model: the shaft section of plumb joint is the T font structure, and the bottom of T font structure is connected with the lower end of positive terminal.
The plumb joint and the positive terminal of above-mentioned T font structure are integral structure.
Further, another preferably is embodied as the utility model: described plumb joint is U type structure, and the bottom of U type structure is connected with the lower end of positive terminal.
The plumb joint and the positive terminal of above-mentioned U type structure are integral structure.
Above-mentioned Vitrea be the sintered body of silicon dioxide, aluminium oxide and boron oxide powder mixture.
Above-mentioned loam cake is the metal tantalum material, and positive terminal and plumb joint are the metal tantalum wire.
The utility model compared with prior art has the following advantages:
The utility model is designed to the welding ends of center pole flat or is T shape plumb joint, effectively increased the bonding area between the hermetically sealed mixing tantalum capacitor of big capacity glass capping group and the anode tap, can improve the weld strength of lead-in wire and center pole intercolumniation, can reduce the contact resistance of lead-in wire and center pole again, both solve the hermetically sealed mixing tantalum capacitor of big capacity and the problem that opens circuit in vibration test, occurred, reduced the resistance loss of this capacitor again; In addition, because the increase of bonding area, the easier manipulation of also feasible welding can not form glass and not burst because of the reason of welding, solved the leakage problem that welding process causes, the reliability and the useful life of having improved the hermetically sealed mixing tantalum capacitor of big capacity.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the utility model;
Fig. 1 (a) is the A-A cutaway view of Fig. 1;
Fig. 2 is the structural representation of second kind of embodiment of the utility model;
Fig. 3 is the structural representation of the third embodiment of the utility model.
Wherein: 1 is loam cake; 2 is positive terminal; 3 is vitreum; 4 is plumb joint.
Embodiment
Several optimal cases of the utility model being selected for use below in conjunction with accompanying drawing are done and are described in further detail:
Referring to Fig. 1, hermetically sealed mixing tantalum capacitor glass capping group of the present utility model comprises loam cake 1 and positive terminal 2, and the center of loam cake 1 is provided with through hole, and positive terminal 2 vertically passes the central through hole of loam cake 1.Be filled with vitreum 3 between the central through hole hole wall of positive terminal 2 and loam cake 1, the lower end of positive terminal 2 is provided with the plumb joint 4 that has increased solder side.As Fig. 1 (a), plumb joint 4 is fan-shaped flat structure, and the fan-shaped plan of plumb joint 4 is vertical with loam cake 1, and the plumb joint 4 of fan-shaped flat structure is integral structure with positive terminal 2.
Referring to Fig. 2, be second kind of embodiment of the present utility model, this hermetically sealed mixing tantalum capacitor glass capping group comprises loam cake 1 and positive terminal 2, the center of loam cake 1 is provided with the hole, positive terminal 2 is filled with vitreum 3 by the central through hole of loam cake 1 between the central through hole hole wall of positive terminal 2 and loam cake 1.The shaft section of the plumb joint 4 that positive terminal 2 lower ends are provided with is the T font structure, and the bottom of T font structure is connected with the lower end of positive terminal 2, and T font plumb joint 4 is circular configurations.In addition as shown in the figure, the plumb joint 4 of T font structure is integral structure with positive terminal 2.
Referring to Fig. 3, be the third embodiment of the present utility model, it comprises loam cake 1 and positive terminal 2, and the center of loam cake 1 is provided with through hole, and positive terminal 2 vertically passes the central through hole of loam cake 1.Be filled with vitreum 3 between the central through hole hole wall of positive terminal 2 and loam cake 1, the lower end of positive terminal 2 is provided with the plumb joint 4 that has increased solder side.Positive terminal 2 lower ends are provided with the U-shaped plumb joint in the third execution mode, and plumb joint 4 and positive terminal 2 are monolithic construction.
In above-mentioned each embodiment, loam cake 1 is the metal tantalum material, and positive terminal 2 is the metal tantalum wire, and the main component of vitreum 3 is the sintered body of silicon dioxide, aluminium oxide and boron oxide powder mixture.
In order to adapt to the needs of the different big hermetically sealed mixing tantalum capacitor of capacity glass capping groups, be convenient to processing, the length of positive terminal 2 can change according to the design needs of product.
Production process of the present utility model is: the vitreum 3 of loam cake 1, positive terminal 2 and shaping is assemblied in the graphite jig, this graphite jig is put into the high temperature furnace sintering, under hot environment, vitreum 3 is in the same place with positive terminal 2 sealings by fusing with loam cake 1, after cooling, remove the surface scale of loam cake 1 and positive terminal 2, obtain hermetically sealed mixing tantalum capacitor glass capping and form product.
The utility model is rational in infrastructure, simply, cost is low, the reliability height, efficiently solve prior art in the defective that exists aspect the welding from structure, can solve because weld strength is not high, the problem that opens circuit appears in the hermetically sealed mixing tantalum capacitor of the big capacity that causes in vibration test, simultaneously, because the increase of bonding area also makes can not form the easier manipulation of welding glass because of the reason of welding and burst, solved the leakage problem of the hermetically sealed mixing tantalum capacitor of big capacity that welding process causes, the reliability and the useful life of having improved the hermetically sealed mixing tantalum capacitor of big capacity.
The foregoing description is not that the utility model is imposed any restrictions, every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, still belong in the protection range of technical solutions of the utility model.
Claims (9)
1. hermetically sealed mixing tantalum capacitor glass capping group, comprise loam cake (1) and positive terminal (2), the center of described loam cake (1) is provided with through hole, positive terminal (2) vertically passes the central through hole of loam cake (1), it is characterized in that: be filled with vitreum (3) between the central through hole hole wall of positive terminal (2) and loam cake (1), the lower end of positive terminal (2) is provided with the plumb joint (4) that has increased solder side.
2. hermetically sealed mixing tantalum capacitor glass capping group according to claim 1, it is characterized in that: described plumb joint (4) is fan-shaped flat structure, and the fan-shaped plan of described plumb joint (4) is vertical with loam cake (1).
3. hermetically sealed mixing tantalum capacitor glass capping group according to claim 2 is characterized in that: the plumb joint of described fan-shaped flat structure (4) is integral structure with positive terminal (2).
4. hermetically sealed mixing tantalum capacitor glass capping group according to claim 1, it is characterized in that: the shaft section of described plumb joint (4) is the T font structure, and the bottom of T font structure is connected with the lower end of positive terminal (2).
5. hermetically sealed mixing tantalum capacitor glass capping group according to claim 4 is characterized in that: the plumb joint of described T font structure (4) is integral structure with positive terminal (2).
6. hermetically sealed mixing tantalum capacitor glass capping group according to claim 1, it is characterized in that: described plumb joint (4) is U type structure, and the bottom of U type structure is connected with the lower end of positive terminal (2).
7. hermetically sealed mixing tantalum capacitor glass capping group according to claim 6 is characterized in that: the plumb joint (4) of described U type structure is integral structure with positive terminal (2).
8. hermetically sealed mixing tantalum capacitor glass capping group according to claim 1 is characterized in that: described vitreum (3) be the sintered body of silicon dioxide, aluminium oxide and boron oxide powder mixture.
9. hermetically sealed mixing tantalum capacitor glass capping group according to claim 1 is characterized in that: described loam cake (1) is the metal tantalum material, and positive terminal (2) and plumb joint (4) are the metal tantalum wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202456598U CN201570383U (en) | 2009-12-08 | 2009-12-08 | Glass capping group for fully-sealed mixed tantalum capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202456598U CN201570383U (en) | 2009-12-08 | 2009-12-08 | Glass capping group for fully-sealed mixed tantalum capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570383U true CN201570383U (en) | 2010-09-01 |
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ID=42662683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202456598U Expired - Fee Related CN201570383U (en) | 2009-12-08 | 2009-12-08 | Glass capping group for fully-sealed mixed tantalum capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201570383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486971A (en) * | 2010-12-02 | 2012-06-06 | 东莞市兆丰五金电子配件厂 | Full tantalum capacitor |
| CN103337371A (en) * | 2013-07-14 | 2013-10-02 | 湖南华冉科技有限公司 | Full-tantalum insulator cover and manufacturing technology thereof |
-
2009
- 2009-12-08 CN CN2009202456598U patent/CN201570383U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486971A (en) * | 2010-12-02 | 2012-06-06 | 东莞市兆丰五金电子配件厂 | Full tantalum capacitor |
| CN103337371A (en) * | 2013-07-14 | 2013-10-02 | 湖南华冉科技有限公司 | Full-tantalum insulator cover and manufacturing technology thereof |
| CN103337371B (en) * | 2013-07-14 | 2016-06-15 | 湖南华冉科技有限公司 | Full tantalum insulator cover and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20121208 |