CN203895272U - Tantalum capacitor - Google Patents
Tantalum capacitor Download PDFInfo
- Publication number
- CN203895272U CN203895272U CN201420269460.XU CN201420269460U CN203895272U CN 203895272 U CN203895272 U CN 203895272U CN 201420269460 U CN201420269460 U CN 201420269460U CN 203895272 U CN203895272 U CN 203895272U
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- Prior art keywords
- tantalum
- housing
- anode
- core
- out tablet
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Abstract
The utility model discloses a tantalum capacitor. The tantalum capacitor comprises a cover plate, a housing, a cathode leading-out piece, a tantalum core, an anode tantalum filament and an anode leading-out piece; and the bottom of the inner side of the housing is pasted to the bottom face of the tantalum core through an adhesive, a space is reserved between other faces of the tantalum core and the housing, and the anode tantalum filament is embedded into the tantalum core from the left side of the tantalum core. The anode leading-out piece and the cathode leading-out piece are respectively embedded in two ends of the bottom of the housing, a vertical portion of the anode leading-out piece is connected to an end of the anode tantalum filament trough the adhesive, and a vertical portion of the cathode leading-out piece is connected with the right side face of the tantalum core through the adhesive. The cavity of the tantalum capacitor is filled with a protective gas, so the tantalum core is protected in high-temperature using environment; and the ceramic housing exhibits good humidity resistance, insulation, thermal insulation and corrosion protection, so reliability of the capacitor in the condition of harsh environment is guaranteed.
Description
Technical field
The utility model belongs to tantalum capacitor design and manufacturing technology field, specifically relates to a kind of tantalum capacitor of ceramic shell.
Background technology
At present, domestic chip capacitor is all mold pressing plastic package structure or metal air-tight seal structure, the former heat-resisting ability is poor, humidity ability is also obviously not enough simultaneously, the defect of the latter's maximum is that heat-transfer capability is strong, ambient temperature is too high can injure inner tantalum piece electrical property, and the highest environment for use temperature of the tantalum capacitor of these two kinds of structures is no more than 175 ℃, makes capacitor can not meet the requirement of electronic equipment to capacitor under certain environmental conditions.
Chinese invention patent CN103366963A discloses a kind of high temperature chip tantalum capacitor and preparation method thereof, and what adopt is that epoxy resin mold pressing is sealed.Although its electrical property and physical property can normally be worked under 200 ℃ and following environment, humidity ability is also obviously not enough, and cost is higher.
Utility model content
For overcoming the deficiency existing in prior art tantalum capacitor, the utility model provides a kind of tantalum capacitor, and this tantalum capacitor can not only normally be worked under hot environment, and can realize paster and install.
The utility model is achieved by following technical solution.
A kind of tantalum capacitor, comprise: cover plate, housing, negative electrode lead-out tablet, tantalum core, anode tantalum wire and anode lead-out tablet, housing inside bottom is bonding by the bottom surface of adhesive and tantalum core, between other faces of tantalum core and housing, all leaves space, and anode tantalum wire embeds tantalum core inner by left side.
The two ends of housing bottom are embedded with respectively anode lead-out tablet and negative electrode lead-out tablet, and the vertical component effect of anode lead-out tablet is connected with the end of anode tantalum wire by bonding agent, and the vertical component effect of negative electrode lead-out tablet is connected with the right flank of tantalum core by bonding agent.
Align with the outward flange of housing side in the edge of cover plate.
Described housing and cover plate are cuboid.
Described tantalum core is cuboid.
The sealing means of described cover plate and housing edge seam crossing is welding.
The horizontal part of described anode lead-out tablet and negative electrode lead-out tablet does not all exceed bottom surface and the side of hull outside.
The material of described housing is pottery.
The beneficial effects of the utility model are: this tantalum capacitor is by being used pottery as case material, and housing is made the shape of cuboid, in the cavity of tantalum capacitor, fills protective gas, and tantalum core is protected under applied at elevated temperature environment; Ceramic case physical efficiency is humidity, insulation, heat insulation, anticorrosion well, thereby has guaranteed the reliability of capacitor under rugged environment condition, realizes the paster of tantalum capacitor and installs, and facilitate it to use, and result of use is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1-cover plate, 2-housing, 3-negative electrode lead-out tablet, 4-tantalum core, 5-adhesive, 6-anode tantalum wire, 7-anode lead-out tablet.
Embodiment
Below in conjunction with accompanying drawing, further describe the technical solution of the utility model, but described in claimed scope is not limited to.
A kind of tantalum capacitor as shown in Figure 1, comprise: cover plate 1, housing 2, negative electrode lead-out tablet 3, tantalum core 4, anode tantalum wire 6 and anode lead-out tablet 7, it is characterized in that: housing 2 inside bottom are bonding with the bottom surface of tantalum core 4 by adhesive 5, between other faces of tantalum core 4 and housing 2, all leave space, anode tantalum wire 6 embeds tantalum core 4 inside by left side.
The two ends of housing 2 bottoms are embedded with respectively anode lead-out tablet 7 and negative electrode lead-out tablet 3, and the vertical component effect of anode lead-out tablet 7 is connected with the end of anode tantalum wire 6 by bonding agent, and the vertical component effect of negative electrode lead-out tablet 3 is connected with the right flank of tantalum core 4 by bonding agent.
Between tantalum core 4 and housing 2, reserved space is in order to fill protective gas, and tantalum core is protected under applied at elevated temperature environment.
Aliging with the outward flange of housing 2 sides in the edge of cover plate 1, makes gap between cover plate 1 and housing 2 be convenient to welding.
Housing 2 and cover plate 1 are made the shape of cuboid, make tantalum capacitor can realize paster and install; Tantalum core 4 is made cuboid and is made the bonding plane between tantalum core and housing 2 inside bottom enough large, improves bonding reliability.
Described cover plate 1 is welding with the sealing means of housing 2 edge seam crossings.Cover plate 1, bonds solid and reliable by welded seal with housing 2, particularly under hot environment, does not come off.
Distance when paster is installed between each components and parts is very little, and the horizontal part of anode lead-out tablet 7 and negative electrode lead-out tablet 3 does not all exceed bottom surface and the side of housing 2, the lead-out tablet that can make tantalum capacitor not can with other device short circuit.
The material of described housing 2 is pottery.Use pottery as the material of housing, can reduce the material cost of tantalum capacitor, and ceramic case physical efficiency insulate well, heat insulation and anticorrosion.
Claims (6)
1. a tantalum capacitor, comprise: cover plate (1), housing (2), negative electrode lead-out tablet (3), tantalum core (4), anode tantalum wire (6) and anode lead-out tablet (7), it is characterized in that: described housing (2) inside bottom is bonding with the bottom surface of tantalum core (4) by adhesive (5), between other faces of described tantalum core (4) and housing (2), all leave space, described anode tantalum wire (6) embeds tantalum core (4) inside by tantalum core (4) left side;
The two ends of described housing (2) bottom are embedded with respectively anode lead-out tablet (7) and negative electrode lead-out tablet (3), the vertical component effect of described anode lead-out tablet (7) is connected with the end of anode tantalum wire (6) by bonding agent, and the vertical component effect of described negative electrode lead-out tablet (3) is connected with the right flank of tantalum core (4) by bonding agent;
Described cover plate (1) is covered on housing (2) top and also seals with housing (2) justified margin.
2. tantalum capacitor according to claim 1, is characterized in that: described housing (2) and cover plate (1) are cuboid.
3. tantalum capacitor according to claim 1, is characterized in that: described tantalum core (4) is cuboid.
4. a kind of tantalum capacitor according to claim 1, is characterized in that: described cover plate (1) is welding with the sealing means of housing (2) edge seam crossing.
5. tantalum capacitor according to claim 1, is characterized in that: the horizontal part of described anode lead-out tablet (7) and negative electrode lead-out tablet (3) does not all exceed bottom surface and the side of housing (2).
6. a kind of tantalum capacitor according to claim 1, is characterized in that: the material of described housing (2) is pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269460.XU CN203895272U (en) | 2014-05-23 | 2014-05-23 | Tantalum capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269460.XU CN203895272U (en) | 2014-05-23 | 2014-05-23 | Tantalum capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895272U true CN203895272U (en) | 2014-10-22 |
Family
ID=51721643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269460.XU Active CN203895272U (en) | 2014-05-23 | 2014-05-23 | Tantalum capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914039A (en) * | 2016-06-24 | 2016-08-31 | 苏州华冲精密机械有限公司 | High temperature and high humidity-resisting dry capacitor |
| CN114093672A (en) * | 2020-08-24 | 2022-02-25 | 深圳先进电子材料国际创新研究院 | Embedded tantalum electrolytic capacitor and preparation method thereof |
-
2014
- 2014-05-23 CN CN201420269460.XU patent/CN203895272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914039A (en) * | 2016-06-24 | 2016-08-31 | 苏州华冲精密机械有限公司 | High temperature and high humidity-resisting dry capacitor |
| CN114093672A (en) * | 2020-08-24 | 2022-02-25 | 深圳先进电子材料国际创新研究院 | Embedded tantalum electrolytic capacitor and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |