CN203721502U - Coiled-type no-lead solid electrolytic capacitor - Google Patents
Coiled-type no-lead solid electrolytic capacitor Download PDFInfo
- Publication number
- CN203721502U CN203721502U CN201320768221.4U CN201320768221U CN203721502U CN 203721502 U CN203721502 U CN 203721502U CN 201320768221 U CN201320768221 U CN 201320768221U CN 203721502 U CN203721502 U CN 203721502U
- Authority
- CN
- China
- Prior art keywords
- fuse
- electrolytic capacitor
- urceolus
- solid electrolytic
- lead
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 32
- 239000007787 solid Substances 0.000 title claims abstract description 29
- 239000011888 foil Substances 0.000 claims abstract description 34
- 239000010410 layer Substances 0.000 claims abstract description 9
- 239000011229 interlayer Substances 0.000 claims abstract description 8
- 239000008393 encapsulating agent Substances 0.000 claims description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003566 sealing material Substances 0.000 abstract 1
- 238000005476 soldering Methods 0.000 abstract 1
- 239000008358 core component Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a coiled-type no-lead solid electrolytic capacitor, and the solid electrolytic capacitor consists of a cylindrical core, a tubular outer cylinder, a sealing material, cathode foil, anode foil, and a solid electric-conduction cathode layer. The solid electrolytic capacitor is characterized in that the outer cylinder sleeves the core; the cathode foil, the anode foil and the solid electric-conduction cathode layer coil around the core; an interlayer between the core and the outer cylinder is provided with a coiled structure, wherein an end face of the core and an end face of the outer cylinder respectively serve as a positive electrode and a negative electrode. The solid electrolytic capacitor does not employ a lead, improves the reliability of a solid aluminium electrolytic capacitor, and is convenient for reflow soldering installation. Moreover, one end face of the core and one end face of the outer cylinder respectively serve as the positive and negative electrodes of the capacitor, thereby enabling the distinguishing to be easy, and enabling the electrode reversing not to be liable to happen in processes of production and installation.
Description
Technical field
The utility model relates to the solid electrolytic capacitor of a kind of takeup type without lead-in wire.
Background technology
In general current solid electrolytic capacitor is consistent with the structure of liquid electrolytic capacitor, is all takeup type structure, uses the encapsulation of aluminum hull and rubber stopper, lead-in wire nail joint in Cathode Foil, anode foils, when installation, by wire bonds on circuit board.Easily there is fracture and cause product actual effect or not prison welding in this structural leadthroughs, installs also inconvenient.Have at present chip solid electrolytic capacitor to be developed, and be applied, with respect to takeup type structure, the solid electrolytic capacitor of slice structure does not use lead-in wire, more convenient when installation, more firm after installation.Chip solid electrolytic capacitor is laminated construction, complex manufacturing technology, and capacity is little, and rated voltage is low.The utility model proposes the solid electrolytic capacitor of a kind of takeup type without lead-in wire, can overcome above-mentioned shortcoming.
Summary of the invention
The purpose of this utility model is: the solid electrolytic capacitor of a kind of takeup type without lead-in wire is provided, and this capacitor has advantages of that reliability is high, easy for installation, easily distinguish both positive and negative polarity.
The technical solution of the utility model is: a kind of takeup type is without the solid electrolytic capacitor of lead-in wire, and its part comprises the fuse of column and the urceolus of tubulose, encapsulant, Cathode Foil, anode foils and solid-state conductive cathode layer.It is characterized in that, urceolus is enclosed within on fuse, one end of Cathode Foil and anode foils is welded on respectively on fuse outer wall and outer tube inner wall, Cathode Foil, anode foils and solid-state conductive cathode layer are wrapped on fuse, in the interlayer of fuse and urceolus, form winding-structure, encapsulant is filled in interlayer two ends, respectively using the end face of fuse and urceolus as positive and negative electrode.
Further implement, in the above structure, positive and negative electrode can be the one end in the structure of fuse and urceolus composition, also can two ends all as positive and negative electrode.
Further implement, in the above structure, fuse and urceolus are made up of conducting metal, and urceolus end face width is greater than wall thickness, and positive and negative electrode end face is coated with metallic tin.
Further implementing, in the above structure, can be that anode foils is welded on fuse outer wall, and Cathode Foil is welded on outer tube inner wall, or Cathode Foil is welded on fuse outer wall, and anode foils is welded on outer tube inner wall.
Further implementing, in the above structure, is the encapsulant of insulation at fuse and urceolus interlayer end positions, the interlayer between sealing fuse and urceolus.
Further implement, in the above structure, the length of fuse and urceolus equates, encapsulant is slightly recessed with respect to fuse and urceolus.
Further implement, in said structure, urceolus surface and non-both positive and negative polarity end face are coated with dielectric film, prevent capacitor short-circuit.
The beneficial effects of the utility model are: the utility model not only has advantages of that takeup type solid electrolytic capacitor capacity is large, rated voltage is high, and has advantages of that chip solid electrolytic capacitor is easy for installation; Further, the utility model does not use the capacity of drawing, and has avoided nail joint and welding contact point fault, has improved the reliability of solid electrolytic capacitor; In addition, positive pole of the present utility model and negative pole are respectively the end face of fuse and urceolus, easily distinguish, and are difficult for, in production and installation process, antipole occurs.
Brief description of the drawings
Fig. 1 is structure end view drawing of the present utility model.
Fig. 2 is the utility model cross-sectional view.
Fig. 3 is the vertical section figure of the utility model embodiment 1.
Figure comprises: negative pole 1, and encapsulant 2, positive pole 3, urceolus 4, core component 5(comprises Cathode Foil, anode foils and solid-state conductive cathode layer), column fuse 6.
Embodiment
Originally use novel feature below in conjunction with accompanying drawing more detailed description.
Embodiment 1
Shown in Fig. 1, Fig. 2 and Fig. 3, a kind of takeup type is without the solid electrolytic capacitor of lead-in wire, comprise that column fuse 6 and urceolus 4, core component 5(comprise Cathode Foil, anode foils and solid-state conductive cathode layer), encapsulant 2, anodal 3, negative pole 1, wherein, on the outer wall of urceolus 4, scribble dielectric film.
As shown in Figure 2, anode foils one end is welded on fuse 6 outer walls, and Cathode Foil one end is welded on urceolus 4 inwalls, anode foils, Cathode Foil and be clipped in overlapping being wound on fuse 6 of core component 5 that solid-state conductive cathode layer between the two forms.
As shown in figures 1 and 3, encapsulant 2, by the interlayer sealing between fuse 6 and urceolus 4, is isolated from the outside core component 5.Anodal 3 is fuse end face, and negative pole 1 is urceolus end face, is coated with metallic tin as fuse end face and the urceolus end face of positive and negative electrode.
As shown in Figure 3, the width of negative pole 1 and positive pole 3 is greater than the thickness of fuse 4 and urceolus 5.
As shown in Figure 3, not only in figure, the below end face of description scheme can be used as positive and negative electrode, and top end face can be used as positive and negative electrode equally.
As shown in Figure 3, encapsulant 2, with respect to positive pole 3 and negative pole 1, falls in slightly, can prevent that encapsulant from directly contacting generation stress with the installation end on circuit board.
Embodiment 2
With respect to embodiment 1, not metallizing tin of the inner core of one end and urceolus end face, makes insulating but apply dielectric film, obtain solid electrolytic capacitor only have one end can both positive and negative polarity.
Claims (7)
1. a takeup type is without the solid electrolytic capacitor going between, its part comprises fuse and tubulose urceolus, encapsulant, Cathode Foil, anode foils and the solid-state conductive cathode layer of column, it is characterized in that, fuse and urceolus are nested together, one end of Cathode Foil and anode foils is welded on respectively on fuse outer wall and outer tube inner wall, Cathode Foil, anode foils and solid-state conductive cathode layer are wrapped on fuse, in the interlayer of fuse and urceolus, form winding-structure, encapsulant is filled in interlayer two ends, respectively the positive and negative electrode using the end face of fuse and urceolus as capacitor.
2. takeup type as claimed in claim 1, without the solid electrolytic capacitor of lead-in wire, is characterized in that, positive and negative electrode can be one end of fuse and urceolus, also can two ends all as positive and negative electrode.
3. takeup type as claimed in claim 1, without the solid electrolytic capacitor of lead-in wire, is characterized in that, fuse and urceolus are made up of conducting metal, and urceolus end face width is greater than wall thickness, and positive and negative electrode end face is coated with metallic tin.
4. takeup type as claimed in claim 1 is without the solid electrolytic capacitor of lead-in wire, it is characterized in that, can be that anode foils is welded on fuse outer wall, and Cathode Foil is welded on outer tube inner wall, or Cathode Foil is welded on fuse outer wall, and anode foils is welded on outer tube inner wall.
5. takeup type as claimed in claim 1, without the solid electrolytic capacitor of lead-in wire, is characterized in that, encapsulant has the characteristic of insulation.
6. takeup type as claimed in claim 1, without the solid electrolytic capacitor of lead-in wire, is characterized in that, the length of fuse and urceolus equates, encapsulant is slightly recessed with respect to fuse and urceolus.
7. takeup type as claimed in claim 1, without the solid electrolytic capacitor of lead-in wire, is characterized in that, urceolus surface and non-both positive and negative polarity end face are coated with dielectric film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768221.4U CN203721502U (en) | 2013-11-29 | 2013-11-29 | Coiled-type no-lead solid electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768221.4U CN203721502U (en) | 2013-11-29 | 2013-11-29 | Coiled-type no-lead solid electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721502U true CN203721502U (en) | 2014-07-16 |
Family
ID=51160640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320768221.4U Expired - Lifetime CN203721502U (en) | 2013-11-29 | 2013-11-29 | Coiled-type no-lead solid electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721502U (en) |
-
2013
- 2013-11-29 CN CN201320768221.4U patent/CN203721502U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170620 Address after: No. 63, industrial road, Ganzhou Economic Development Zone, Jiangxi Patentee after: GANZHOU POLYCAP ELECTRONIC TECHNOLOGY CO.,LTD. Address before: Baolong Baolong Industrial City six new road bridge Industrial Park A building in Longgang District of Shenzhen City, Guangdong province 518100 floor 4 Bai Ruikai electronic Patentee before: SHENZHEN POLYCAP ELECTRONICS TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |