CN213988626U - SMD high-energy mixed tantalum capacitor - Google Patents
SMD high-energy mixed tantalum capacitor Download PDFInfo
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- CN213988626U CN213988626U CN202022742779.8U CN202022742779U CN213988626U CN 213988626 U CN213988626 U CN 213988626U CN 202022742779 U CN202022742779 U CN 202022742779U CN 213988626 U CN213988626 U CN 213988626U
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Abstract
The utility model provides a patch type high-energy mixed tantalum capacitor, which comprises a shell, a negative patch, a negative plate, a tantalum core and a positive patch; the upper end of shell sets up the opening and uses the apron to seal, negative pole paster and anodal paster are fixed respectively on the relative lateral wall of shell, outside the shell was drawn out through the negative pole paster to the negative pole piece is fixed on the inner wall of shell and apron, the tantalum core is fixed in the shell, has further increased the energy density of high-energy mixed tantalum capacitor, has reduced installation space, has reduced the weight of product, provides probably for the application of high-energy mixed tantalum capacitor in light-dutyization, miniaturization field. The invention mainly comprises a series of technological processes from a plug-in type leading-out structure to a patch type leading-out structure of the CASD8C type capacitor, solves a series of technical problems in the processes of shell design, assembly, anode tantalum wire welding, shell laser welding, positive and negative patch leading-out methods and the like, and realizes the development process of the novel patch type high-energy mixed tantalum capacitor.
Description
Technical Field
The utility model relates to a tantalum capacitor is mixed to SMD high energy.
Background
At present, the domestic high-energy hybrid tantalum capacitor is developed rapidly, along with the performance of the high-energy hybrid tantalum capacitor is more and more stable and reliable, the high-energy hybrid tantalum capacitor is widely applied in the aerospace field and mainly used for realizing the functions of energy storage, filtering and the like of a power module, and therefore the high-energy hybrid tantalum capacitor is gradually developed towards the direction of miniaturization and light weight. In an aerospace system power module, the space reserved for an energy storage capacitor is smaller and smaller, but the requirement on energy storage capacity is higher and higher, an original high-energy hybrid tantalum capacitor is a plug-in component with pins, a tantalum core is assembled in a tantalum shell, and then an insulator cover plate with sealing glass is used for packaging, a section of mounting space needs to be reserved between the tantalum core and the cover plate for facilitating welding of an anode lead, a cathode lead and the tantalum core, the space is also used for packaging welding and facilitating customer installation, so that the existing tantalum capacitor needs to be reserved with at least 1.7mm of space between the tantalum core and the cover plate, and the appearance size of the tantalum capacitor is overlarge.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a tantalum condenser is mixed to SMD high energy realizes light-dutyization, miniaturized operation requirement among the aerospace application environment, solves the big breakthrough that the paster was drawn forth to the plug-in formula that the tantalum condenser was mixed to the high energy, improves the condenser inner space greatly, promotes energy density.
The utility model discloses a following technical scheme can realize.
The utility model provides a patch type high-energy mixed tantalum capacitor, which comprises a shell, a negative patch, a negative plate, a tantalum core and a positive patch; the upper end of shell sets up the opening and uses the apron to seal, negative pole paster and anodal paster are fixed respectively on the relative lateral wall of shell, the negative pole piece is fixed and is drawn out outside the shell through the negative pole paster on the inner wall of shell and apron, the tantalum core is fixed in the shell, draws out outside the shell through anodal paster.
And an adjusting gasket is also arranged between the tantalum core and the cover plate.
An insulating strip is bonded between the tantalum core and the shell.
The tantalum core is connected with the tantalum rod through the anode tantalum core and the tantalum rod in sequence and led out of the shell.
The anode tantalum core is welded with the tantalum rod, and the tantalum rod extends out of the shell and is welded with the positive patch.
And an insulating sleeve is arranged between the tantalum rod and the shell of the shell.
And an insulating pad is arranged between the positive patch and the shell and is arranged on the tantalum rod.
The gap between the insulating pad and the shell is sealed by an insulating seal.
One end of the tantalum rod in the shell is provided with a bend, the bend is welded with the anode tantalum core, and the anode tantalum core and the tantalum rod form a herringbone.
The tantalum core is coated by diaphragm paper.
The beneficial effects of the utility model reside in that: the capacitor saves packaging and installation space inside, the sealing glass insulator is moved to the shell from the tantalum cover, the plug-in type is made into a patch type structure, the usable space of the shell is greatly improved, the installation and welding are simple, and higher energy density can be realized in unit volume.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the positive electrode patch of the present invention;
FIG. 3 is a schematic view of the tantalum core and shell assembly of the present invention;
fig. 4 is a schematic structural view of the positive electrode patch and the negative electrode patch of the present invention;
in the figure: 1-shell, 2-negative electrode patch, 3-cathode sheet, 4-diaphragm paper, 5-tantalum core, 6-insulating strip, 61-polytetrafluoroethylene insulating strip, 62-polyimide adhesive tape, 7-insulating pad, 8-positive electrode patch, 9-adjusting gasket, 10-cover plate, 11-anode tantalum core, 12-insulating seal layer, 13-tantalum rod welding spot, 14-tantalum rod and 15-insulating sleeve.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
A patch type high-energy mixed tantalum capacitor is mainly used for a CASD8C type 50V12000 mu F capacitor from a plug-in lead-out structure to a patch type lead-out structure and comprises a shell 1, a negative patch 2, a cathode patch 3, a tantalum core 5 and a positive patch 8; the upper end of shell 1 sets up the opening and uses apron 10 to seal, negative pole paster 2 and anodal paster 8 are fixed respectively on the relative lateral wall of shell 1, the negative pole piece 3 is fixed and is drawn forth outside shell 1 through negative pole paster 2 on the inner wall of shell 1 and apron 10, tantalum core 5 is fixed in shell 1, draws forth outside shell 1 through anodal paster 8.
And an adjusting gasket 9 is also arranged between the tantalum core 5 and the cover plate 10.
An insulating strip 6 is bonded between the tantalum core 5 and the shell. The inner side of the insulating strip 6 is a polytetrafluoroethylene insulating strip 61 which is contacted with the tantalum core 5, and the outer layer is a polyimide adhesive tape 62 which is bonded on the inner wall of the shell 1. The tantalum core is held in place by an interference fit and adhesive end of the polyimide tape 62.
The tantalum core 5 is connected and led out of the shell 1 sequentially through the anode tantalum core 11 and the tantalum rod 14.
The anode tantalum core 11 is welded with the tantalum rod 14, and the tantalum rod 14 extends out of the shell 1 and is welded with the positive patch 8.
An insulating sleeve 15 is arranged between the tantalum rod 14 and the shell of the shell 1.
An insulating pad 7 is arranged between the positive patch 8 and the shell 1 and is arranged on a tantalum rod 14.
The gap between the insulating mat 7 and the housing 1 is closed by an insulating seal 12. The insulating layer 12 shields the side surface of the patch type shell through the acid injection hole and the glass insulator.
As shown in fig. 2, a bend is formed at one end of the tantalum rod 14 in the shell 1, the bend is welded with the anode tantalum core 11, a special shell with a glass insulator is formed between the anode tantalum core 11 and the tantalum rod 14, the insulator tantalum rod is designed to be bent, the anode tantalum wire is convenient to spot weld, the spot-welded structure in the shape of the Chinese character 'ren' can achieve higher vibration resistance, the welding position is farther from the glass end of the shell insulator, and the influence on the sealing performance is smaller.
The tantalum core 5 is coated by a diaphragm paper 4.
As shown in fig. 1, the negative electrode patch 3 is made of weldable nickel sheet, and is welded on the side edge of the tantalum casing by laser to be led out as a negative electrode patch, and the negative electrode patch is spot-welded on the casing and the cover plate by resistance welding to be led out as a negative electrode. The positive pole paster 8 is welded on a positive pole tantalum rod in a spot welding mode through laser, the positive pole tantalum rod is led out from a glass end sintered by a shell, a polytetrafluoroethylene plate penetrates through the tantalum rod to be insulated, insulating resin is filled in a gap between the positive pole paster and the shell to achieve insulation and fixation of the positive pole paster leading out and the shell, and a positive pole tantalum core is welded on the tantalum rod of the insulator through laser to conduct positive pole leading out. And a layer of lead-tin alloy coating is scraped on the surfaces of the positive and negative electrode patches to improve the weldability of the nickel sheet, so that the extraction of the positive and negative electrode patches is realized.
Claims (10)
1. The utility model provides a tantalum capacitor is mixed to SMD high energy, includes shell (1), negative pole paster (2), negative pole piece (3), tantalum core (5), anodal paster (8), its characterized in that: the utility model discloses a tantalum chip, including shell (1), negative pole paster (2) and positive pole paster (8), the upper end of shell (1) sets up the opening and uses apron (10) to seal, negative pole paster (2) and positive pole paster (8) are fixed respectively on the relative lateral wall of shell (1), outside negative pole paster (2) are drawn forth outside shell (1) on the inner wall of shell (1) and apron (10) is fixed in shell (1), tantalum core (5) are fixed in shell (1), are drawn forth outside shell (1) through positive pole paster (8).
2. The patch type high-energy hybrid tantalum capacitor of claim 1, wherein: and an adjusting gasket (9) is also arranged between the tantalum core (5) and the cover plate (10).
3. The patch type high-energy hybrid tantalum capacitor of claim 1, wherein: an insulating strip (6) is bonded between the tantalum core (5) and the shell.
4. The patch type high-energy hybrid tantalum capacitor of claim 1, wherein: the tantalum core (5) is connected and led out of the shell (1) sequentially through the anode tantalum core (11) and the tantalum rod (14).
5. The SMD high-energy hybrid tantalum capacitor of claim 4, wherein: the anode tantalum core (11) is welded with the tantalum rod (14), and the tantalum rod (14) extends out of the shell (1) and is welded with the anode patch (8).
6. The SMD high-energy hybrid tantalum capacitor of claim 5, wherein: an insulating sleeve (15) is arranged between the tantalum rod (14) and the shell of the shell (1).
7. The SMD high-energy hybrid tantalum capacitor of claim 5, wherein: an insulating pad (7) is arranged between the positive patch (8) and the shell (1) and is arranged on the tantalum rod (14).
8. The patch type high-energy hybrid tantalum capacitor of claim 7, wherein: the gap between the insulating pad (7) and the housing (1) is closed by an insulating seal (12).
9. The SMD high-energy hybrid tantalum capacitor of claim 4, wherein: one end of the tantalum rod (14) in the shell (1) is provided with a bend, the bend is welded with the anode tantalum core (11), and a herringbone shape is formed between the anode tantalum core (11) and the tantalum rod (14).
10. The patch type high-energy hybrid tantalum capacitor of claim 1, wherein: the tantalum core (5) is coated by diaphragm paper (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022742779.8U CN213988626U (en) | 2020-11-24 | 2020-11-24 | SMD high-energy mixed tantalum capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022742779.8U CN213988626U (en) | 2020-11-24 | 2020-11-24 | SMD high-energy mixed tantalum capacitor |
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| Publication Number | Publication Date |
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| CN213988626U true CN213988626U (en) | 2021-08-17 |
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| CN202022742779.8U Active CN213988626U (en) | 2020-11-24 | 2020-11-24 | SMD high-energy mixed tantalum capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188162A (en) * | 2021-11-18 | 2022-03-15 | 北京七一八友益电子有限责任公司 | Solid electrolyte tantalum capacitor and preparation method thereof |
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2020
- 2020-11-24 CN CN202022742779.8U patent/CN213988626U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188162A (en) * | 2021-11-18 | 2022-03-15 | 北京七一八友益电子有限责任公司 | Solid electrolyte tantalum capacitor and preparation method thereof |
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