CN204966293U - Square aluminium electrolytic capacitor - Google Patents
Square aluminium electrolytic capacitor Download PDFInfo
- Publication number
- CN204966293U CN204966293U CN201520772169.9U CN201520772169U CN204966293U CN 204966293 U CN204966293 U CN 204966293U CN 201520772169 U CN201520772169 U CN 201520772169U CN 204966293 U CN204966293 U CN 204966293U
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- CN
- China
- Prior art keywords
- electrolytic capacitor
- aluminium
- aluminium shell
- square
- aluminum cover
- 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 - Fee Related
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Abstract
The utility model relates to an aluminium electrolytic capacitor, concretely relates to square aluminium electrolytic capacitor, include the aluminium shell, draw forth the end and locate aluminium shell cavity's electric capacity core, the aluminium shell is rectangle, the aluminium shell is furnished with assorted rectangle aluminum cover board, aluminum cover board with the sealed closed department of aluminium shell adopts laser welding, the last explosion proof hole that is equipped with of aluminum cover board, aluminum cover board is from lining to foreign side to being connected with through first insulation piece and second insulating piece respectively draw forth the end, the electric capacity core is convoluteed with a roll needle and is the ellipse, it is flat shape to roll up the needle, it leads the chaff to be equipped with on the electric capacity core, lead the chaff with draw forth end be connected together. The utility model provides a square aluminium electrolytic capacitor shape has greatly reduced the position that aluminium electrolytic capacitor occupies in the circuit board, lengthened square aluminium electrolytic capacitor's life by a wide margin, and the longest life can reach 50 years.
Description
Technical field
The utility model relates to a kind of aluminium electrolytic capacitor, is specifically related to a kind of square aluminum electrolytic capacitor.
Background technology
In prior art, aluminium electrolytic capacitor is all cylindrical structural, and the cover plate of sealing adopts and covers glue laminated phenolic paper plate nonmetallic materials, and the sealing of aluminium shell and cover plate adopts mechanical crimp mode, and such way has following disappearance:
1, because aluminium electrolytic capacitor is all cylindrical structural, if when many quantity connection in series-parallel use, the position of capacitor in wiring board shared by arranged distribution is larger.
2, because glue laminated phenolic paper plate nonmetallic materials are covered in the cover plate employing of aluminium electrolytic capacitor sealing, aluminium electrolytic capacitor is inner in working long hours can produce larger hot barometric pressure, cover plate can occur bending and deformation phenomenon under the repeated stock of hot barometric pressure, aluminium electrolytic capacitor crimping mouth is caused also to there will be change, thus cause sealing property to decline, there is Seepage from crimping mouth in the electrolyte in aluminium electrolytic capacitor.Meanwhile, because cover plate base material is laminated phenolic paper plate, the electrolyte of energy Al adsorption electrolytic capacitor inside, also can cause electrolyte to be gone out by the slow seepage in cover plate base material place, causes aluminium electrolytic capacitor hydraulic performance decline and useful life to shorten.
3, because the sealing of aluminum shell of aluminum electrolytic capacitor and cover plate adopts mechanical crimp mode, aluminium outer casing end buckled into covering in glue-line of cover plate by crimping wheel to carry out sealing, ethylene-propylene diene copolymer in the long-time process cover plate used covers glue-line and there will be aging phenomenon and follow the string, crimping mouth there will be change, thus cause sealing property to decline, there is Seepage from crimping mouth in the electrolyte in aluminium electrolytic capacitor, causes aluminium electrolytic capacitor hydraulic performance decline and useful life to shorten.
Utility model content
For the problem and shortage point of above-mentioned prior art, the utility model provide a kind of save take up space and the square structure aluminium electrolytic capacitor of long service life performance.
For solving the problem, the technical scheme taked is:
A kind of square aluminum electrolytic capacitor of the present utility model, comprise aluminium shell, exit and the capacitor core being located at described aluminium shell inner cavity, described aluminium shell is rectangle, described aluminium shell is furnished with the rectangle Aluminum cover matched, the seal closure place of described Aluminum cover and described aluminium shell adopts laser welding, described Aluminum cover is provided with explosionproof hole, described Aluminum cover from the inside to the outside direction is connected with described exit respectively by the first insulating trip and the second insulating trip, described capacitor core volume pin carries out winding ovalize, described volume pin is flat pattern, described capacitor core is provided with leads chaff, describedly lead chaff and described exit connects together.
Further, described explosionproof hole is arranged an aluminium flake, the thickness range of described aluminium flake is 0.3mm to 0.5mm, in described square aluminum electrolytic capacitor, play explosion-proof.
Further, chaff is led described in and described exit adopts laser spot welding mode to connect together.
Preferably, described aluminium shell is coated with heat-shrinkable T bush.
Preferably, described aluminium outer casing bottom is provided with black plastic sheet.
In wiring board, no matter be single by the square aluminum electrolytic capacitor of this design to use or many arrangement uses, the use location of capacitor can be reduced significantly.
Square aluminum electrolytic capacitor in the utility model makes square aluminum cover plate and square aluminum shell be welded together completely, cover plate is made to become to be integrated with aluminium shell, the technique adopting laser-beam welding machine to carry out laser welding can reach it and fuse into one and complete hermetic effect, thus guarantee that the electrolyte of square aluminum electrolytic capacitor inside is without any Seepage, electrical property is more stable, longer service life.
Adopt technique scheme, acquired beneficial effect is:
1, due to square aluminum electrolytic capacitor shape, considerably reduce the position that aluminium electrolytic capacitor occupies in wiring board, provide convenience to overall design.
2, because the sealing of square aluminum electrolytic capacitor adopts laser welding mode to make it reach complete sealing state, inner electrolyte is without any Seepage, and square aluminum cover plate heat-resisting quantity, good corrosion resistance, corrode without chloride ion impurities again, ensure that square aluminum electrolytic capacitor performance is more stable, extend the useful life of square aluminum electrolytic capacitor significantly, the most long life can reach 50 years.
Accompanying drawing explanation
Fig. 1 is that the overall outer of the utility model square aluminum electrolytic capacitor looks schematic diagram.
Fig. 2 is the schematic cross-section of utility model square aluminum electrolytic capacitor.
Fig. 3 is the capacitor core winding shaping schematic diagram of utility model square aluminum electrolytic capacitor.
Sequence number in figure: 1-aluminium shell, 2-Aluminum cover, 3-exit, the 4-the first insulating trip, the 5-the second insulating trip, 6-flake aluminum, 7-capacitor core, 8-heat-shrinkable T bush, 9-black plastic sheet, 10-explosionproof hole, 11-leads chaff.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described, but the utility model is not limited to these embodiments.
Embodiment 1
As shown in Figure 2, the utility model proposes a kind of square aluminum electrolytic capacitor, comprise aluminium shell 1, exit 3 and the capacitor core 7 being located at described aluminium shell inner cavity, described aluminium shell 1 is rectangle, described aluminium shell 1 is furnished with the rectangle Aluminum cover 2 matched, described Aluminum cover 2 adopts laser welding with the seal closure place of described aluminium shell 1, described Aluminum cover 2 is provided with explosionproof hole 10, described Aluminum cover 2 from the inside to the outside direction is connected with described exit 3 respectively by the first insulating trip 4 and the second insulating trip 5, described capacitor core 7 volume pin carries out winding ovalize, described volume pin is flat pattern, described capacitor core 7 is provided with leads chaff, described chaff 11 of leading connects together with described exit 3.Square aluminum cover plate 2, exit 3, first insulating trip 4, second insulating trip 5 are assembled in aggregates by mould punching, exit 3 with on capacitor core 7 to lead chaff 11 spot-welded together, reinstall in square aluminum shell 1, and by laser-beam welding machine, square aluminum shell 1 and square aluminum cover plate 2 and square aluminum cover plate 2 are carried out seal welding respectively with flake aluminum 6.
In contrast to CD29363V3300 μ F product of the prior art, this product is cylindrical structural, and volume is diameter of phi 25mm × high 30mm, and as 10 products use side by side, then area occupied is 6700mm
2, total length is 268mm.And the volume of the utility model square aluminum electrolytic capacitor is long 35mm × wide 16mm × high 35mm, same as 10 products use side by side, then area occupied is 6230mm
2, total length is 178mm, square aluminum electrolytic capacitor 470mm fewer than cylindrical aluminium electrolytic capacitor area
2, the few 90mm of length direction.
The utility model is not limited to above-mentioned embodiment, and those skilled in the art also can make multiple change accordingly, but to be anyly equal to the utility model or similar change all should be encompassed in the scope of the utility model claim.
Claims (6)
1. a square aluminum electrolytic capacitor, comprise aluminium shell, exit and the capacitor core being located at described aluminium shell inner cavity, it is characterized in that, described aluminium shell is rectangle, described aluminium shell is furnished with the rectangle Aluminum cover matched, the seal closure place of described Aluminum cover and described aluminium shell adopts laser welding, described Aluminum cover is provided with explosionproof hole, described Aluminum cover from the inside to the outside direction is connected with described exit respectively by the first insulating trip and the second insulating trip, described capacitor core volume pin carries out winding ovalize, described volume pin is flat pattern, described capacitor core is provided with leads chaff, describedly lead chaff and described exit connects together.
2. square aluminum electrolytic capacitor according to claim 1, is characterized in that: described explosionproof hole is arranged an aluminium flake.
3. square aluminum electrolytic capacitor according to claim 2, is characterized in that: the thickness range of described aluminium flake is 0.3mm to 0.5mm.
4. square aluminum electrolytic capacitor according to claim 1, is characterized in that: described in lead chaff and described exit adopts laser spot welding mode to connect together.
5. square aluminum electrolytic capacitor according to claim 1, is characterized in that: described aluminium shell is coated with heat-shrinkable T bush.
6. square aluminum electrolytic capacitor according to claim 1, is characterized in that: described aluminium outer casing bottom is provided with black plastic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772169.9U CN204966293U (en) | 2015-10-08 | 2015-10-08 | Square aluminium electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772169.9U CN204966293U (en) | 2015-10-08 | 2015-10-08 | Square aluminium electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966293U true CN204966293U (en) | 2016-01-13 |
Family
ID=55061341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520772169.9U Expired - Fee Related CN204966293U (en) | 2015-10-08 | 2015-10-08 | Square aluminium electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898489A (en) * | 2017-04-10 | 2017-06-27 | 益阳市锦汇电子有限公司 | A kind of flat aluminium electrolutic capacitor and preparation method thereof |
-
2015
- 2015-10-08 CN CN201520772169.9U patent/CN204966293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898489A (en) * | 2017-04-10 | 2017-06-27 | 益阳市锦汇电子有限公司 | A kind of flat aluminium electrolutic 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20191008 |