CN108257787A - Low-loss square electric container - Google Patents
Low-loss square electric container Download PDFInfo
- Publication number
- CN108257787A CN108257787A CN201711316474.7A CN201711316474A CN108257787A CN 108257787 A CN108257787 A CN 108257787A CN 201711316474 A CN201711316474 A CN 201711316474A CN 108257787 A CN108257787 A CN 108257787A
- Authority
- CN
- China
- Prior art keywords
- foil
- anode
- core packet
- cathode
- negative
- 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.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 65
- 239000011888 foil Substances 0.000 claims abstract description 59
- 239000004411 aluminium Substances 0.000 claims abstract description 52
- 238000003466 welding Methods 0.000 claims abstract description 30
- 210000005069 ears Anatomy 0.000 claims abstract description 4
- 239000002390 adhesive tape Substances 0.000 claims description 33
- 238000004804 winding Methods 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 4
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 abstract description 9
- 238000005245 sintering Methods 0.000 abstract description 5
- 239000005030 aluminium foil Substances 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
- H01G9/10—Sealing, e.g. of lead-in wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of low-loss square electric containers, including core packet, aluminum hull and for core packet to be sealed in the aluminium lid in aluminum hull, core packet includes cathode foil, anode foil, positioned at the electrolytic paper of cathode foil and anode foil between the two, the positive wire being connect with cathode foil, and the negative wire being connect with anode foil, positive wire and negative wire through aluminium lid and are stretched out outside aluminium lid, core packet is stacked core packet, cathode foil and anode foil are sintering foil, cathode foil is equipped with the positive pole ear of multiple stackings, anode foil is equipped with the negative lug of multiple stackings, the anode welding region for multiple positive pole ears and positive wire to be welded together is reserved on the outer surface of each positive pole ear, the cathode welding region for multiple negative lugs and negative wire to be welded together is reserved on the outer surface of each negative lug.Low-loss square electric container proposed by the present invention, compact structure, impregnation is efficient, ESR values are small and make full use of inner space.
Description
Technical field
The present invention relates to capacitor area more particularly to a kind of low-loss square electric containers.
Background technology
As depicted in figs. 1 and 2, square electric container is positive and negative anodes foil to be wound together with electrolytic paper at present, electricity
Solution paper is located among positive and negative anodes foil.Riveting has extraction guide pin wherein on positive and negative anodes foil, and the core packet formed after winding is conductive in impregnation
Electrolyte, the above-mentioned anode guide pin 1 containing the core packet for being soaked with electrolyte and negative electrode guide needle 2 are then passed through into rubber stopper and aluminium lid 3
Formation group is three-dimensional, and group solid is fitted into aluminum hull 4, then with laser welding aluminium lid and the edge slot of aluminum hull, with glue sealing aluminium lid
On preformed groove, so as to form a square electric container.
The square electric container of this structure, due to being the core packet that forms of winding, core packet center can there are a hollow hole,
So as to sacrifice the inner space of product, the loss of this segment space can not accomplish the capacity for leading to product ultimate attainment.Meanwhile this
Kind structure also will appear can not fitting closely between layers for winding so that the loss of product is larger.
Therefore, what winding occurred in existing square capacitance can not fit closely between layers so that the loss of product is big, is
One urgent problem to be solved.
Invention content
Low-loss square electric container proposed by the present invention, it is intended to solve existing square capacitance will appear the layer of winding and layer it
Between can not fit closely so that the technical issues of loss of product is larger.
Low-loss square electric container proposed by the present invention, including core packet, aluminum hull and for core packet to be sealed in aluminum hull
Aluminium lid, core packet include cathode foil, anode foil, connect positioned at cathode foil and anode foil electrolytic paper between the two, with cathode foil
Positive wire and the negative wire being connect with anode foil, positive wire and negative wire are through aluminium lid and stretch out outside aluminium lid, core
It wraps as stacked core packet, cathode foil and anode foil are sintering foil, and cathode foil is equipped with the positive pole ear of multiple stackings, in anode foil
Negative lug equipped with multiple stackings is reserved with to draw multiple positive pole ears and anode on the outer surface of each positive pole ear
The anode welding region that wire bonding is connected together is reserved on the outer surface of each negative lug for by multiple negative lugs and negative
The cathode welding region that pole lead welds together.
Further, positive wire includes sequentially connected anode aluminium tongue, anode aluminium stalk portion and positive wire portion, anode
Aluminium tongue is in flat, and anode aluminium tongue is inserted between the positive pole ear of stacking and is welded on anode welding region；Cathode
Lead includes sequentially connected cathode aluminium tongue, cathode aluminium stalk portion and negative wire portion, and cathode aluminium tongue is in flat, cathode aluminium
Tongue is inserted between the negative lug of stacking and is welded on cathode welding region.
Further, core packet outer surface is coated with to carry out reinforcement and strengthening to the solder joint of positive pole ear and negative lug
Winding layer.
Further, winding layer is the adhesive tape for being wound in core packet outer surface, and adhesive tape is used to the core packet being welded carrying out ten
Font is wound.
Further, adhesive tape wraps first adhesive tape on surface and wraps table with being longitudinally disposed at core including being horizontally set at core
Second adhesive tape in face, the first adhesive tape and the staggered core packet bundled fixed for will be welded of the second adhesive tape.
Further, the broadband of the first adhesive tape and the second adhesive tape be respectively less than or 1/5th equal to electrolytic paper width.
Having the beneficial effect that acquired by the present invention：
Low-loss square electric container proposed by the present invention abandons the aluminium using traditional corrosion formed aluminum foil, formed using sintering
Foil, and in lug position without being sintered and being melted into so that welding region only has the presence of aluminium.Conductive electrolyte be easier into
Enter the hole of core packet inner foil, can greatly improve impregnation efficiency；Due to reserved welding region so that welding kesistance is by ten
Divide small；Using the structure of stacking, will fit closely between layers, so as to the ESR of product（Equivalent Series
Resistance, equivalent series resistance）Value will also become smaller；Stepped construction core packet center can be made full use of in product without hollow hole
Portion space.Low-loss square electric container proposed by the present invention, compact structure, impregnation is efficient, ESR values are small and it is interior to make full use of
Portion space.
Description of the drawings
Fig. 1 is the dimensional structure diagram of existing square electric container；
Fig. 2 is the overlooking the structure diagram of existing square electric container；
Fig. 3 is the cross-sectional view of low-loss square electric container preferred embodiment of the present invention；
Fig. 4 is the dimensional structure diagram of cathode foil preferred embodiment in Fig. 3.
Drawing reference numeral explanation：
10th, core packet；20th, aluminum hull；30th, aluminium lid；11st, cathode foil；12nd, anode foil；13rd, positive wire；14th, negative wire；111、
Positive pole ear；121st, negative lug；1111st, anode welding region；1211st, cathode welding region；131st, anode aluminium stalk portion；132、
Positive wire portion；141st, cathode aluminium stalk portion；142nd, negative wire portion；40th, adhesive tape；41st, the first adhesive tape；42nd, the second adhesive tape.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in Figure 3 and Figure 4, first embodiment of the invention proposes a kind of low-loss square electric container, including core packet 10, aluminium
Shell 20 and for core packet 10 to be sealed in the aluminium lid 30 in aluminum hull 20, core packet 10 includes cathode foil 11, anode foil 12, positioned at anode
It foil 11 and anode foil 12 electrolytic paper between the two, the positive wire 13 being connect with cathode foil 11 and is connect with anode foil 12
Negative wire 14, positive wire 13 and negative wire 14 are through aluminium lid 30 and stretch out outside aluminium lid 30, and core packet 10 is stacked core
Packet, cathode foil 11 and anode foil 12 are to be sintered foil, positive pole ear 111 of the cathode foil 11 equipped with multiple stackings, in anode foil 12
Negative lug 121 equipped with multiple stackings is reserved on the outer surface of each positive pole ear 111 for by multiple positive pole ears
111 and the anode welding region 1111 that welds together of positive wire 11, it reserves on the outer surface of each negative lug 121 useful
In the cathode welding region 1211 for welding together multiple negative lugs 121 and negative wire 14.
The low-loss square electric container that the present embodiment proposes compared with prior art, is abandoned being melted into using traditional corrosion
Aluminium foil, the aluminium foil formed using sintering, and in lug position without being sintered and being melted into so that welding region only has depositing for aluminium
.Conductive electrolyte is easier the hole into core packet inner foil, can greatly improve impregnation efficiency；Due to reserved weldering
Connect region so that welding kesistance will be very small；Using the structure of stacking, will fit closely between layers, so as to product
ESR values will also become smaller；Stepped construction core packet center can make full use of interiors of products space without hollow hole.What the present embodiment proposed
Low-loss square electric container, compact structure, impregnation is efficient, ESR values are small and make full use of inner space.
Preferably, the low-loss square electric container proposed referring to Fig. 3 and Fig. 4, the present embodiment, positive wire 13 are included successively
Anode aluminium tongue, anode aluminium stalk portion 131 and the positive wire portion 132 of connection, anode aluminium tongue are in flat, and anode aluminium tongue is inserted
Enter between the positive pole ear 111 of stacking and being welded on anode welding region 1111；Negative wire 14 includes sequentially connected
Cathode aluminium tongue, cathode aluminium stalk portion 141 and negative wire portion 142, cathode aluminium tongue are in flat, and cathode aluminium tongue is inserted into layer
Between folded negative lug 121 and it is welded on cathode welding region 1211.
The low-loss square electric container that the present embodiment proposes compared with prior art, is abandoned being melted into using traditional corrosion
Aluminium foil, the aluminium foil formed using sintering, and in lug position without being sintered and being melted into so that welding region only has depositing for aluminium
, and the anode aluminium tongue of positive wire is inserted between the positive pole ear of stacking and is welded on anode welding region；And
The cathode aluminium tongue of negative wire is inserted between the negative lug of stacking and is welded on cathode welding region, so as to make to lead
The electrolyte of electricity is easier the hole into core packet inner foil, can greatly improve impregnation efficiency；Due to reserved welding section
Domain so that welding kesistance will be very small；Using the structure of stacking, will fit closely between layers, so as to the ESR values of product
Also will become smaller；Stepped construction core packet center can make full use of interiors of products space without hollow hole.The low-loss that the present embodiment proposes
Square electric container, compact structure, impregnation is efficient, ESR values are small and make full use of inner space.
Preferably, the low-loss square electric container proposed see Fig. 3, the present embodiment, 10 outer surface of core packet, which is coated with, to be used for
The winding layer of reinforcement and strengthening is carried out to the solder joint of positive pole ear 111 and negative lug 121.Specifically, winding layer is is wound in core
The adhesive tape 40 of 10 outer surfaces is wrapped, adhesive tape 40 is used to the core packet 10 being welded carrying out cross winding.Further, adhesive tape 40 wraps
The first adhesive tape 41 for being horizontally set at 10 upper surface of core packet and the second adhesive tape 42 with being longitudinally disposed at 10 upper surface of core packet are included, the
42 staggered 10 bundled fixed of core packet for will be welded of one adhesive tape 41 and the second adhesive tape.Optionally, in the present embodiment,
The broadband of one adhesive tape 41 and the second adhesive tape 42 be respectively less than or 1/5th equal to electrolytic paper width.
The low-loss square electric container that the present embodiment proposes, compared with prior art, by core packet outer surface cladding pair
Positive pole ear and the solder joint of negative lug carry out the winding layer of reinforcement and strengthening, so as to make the welding reserved at lug position on aluminium foil
Region connect more reliable with negative leads, makes aluminium foil will fit closely between layers, will also become so as to the ESR values of product
It is small；And pass through compression volume, interiors of products space can be made full use of.The low-loss square electric container that the present embodiment proposes, structure
It is compact, impregnation is efficient, ESR values are small and make full use of inner space.
In the present embodiment, the aluminium foil formed will be sintered and electrolytic paper cuts blocking, block-like cathode foil 11, anode foil 12
Stacked together with block-like electrolytic paper, wherein electrolytic paper is located among 12 the two of cathode foil 11 and anode foil, at lug position
Reserved welding region welds together respectively with positive wire 13 and negative wire 14.By the above-mentioned structure adhesive tape being welded
Winding, wherein 40 width of adhesive tape is to cut blocking electrolytic paper width 1/5, and adhesive tape 40 twines the structure being welded with cross
Around.Structure after winding is stood with 30 groups of rubber plug and aluminium lid, and group solid coordinates with aluminum hull 20, welds between aluminium lid 30 and aluminum hull 20
The preformed groove of glue sealing aluminium lid 30 is used after gap.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of low-loss square electric container, including core packet（10）, aluminum hull（20）And for by the core packet（10）It is sealed in institute
State aluminum hull（20）Interior aluminium lid（30）, the core packet（10）Including cathode foil（11）, anode foil（12）, positioned at the cathode foil
（11）With the anode foil（12）Electrolytic paper between the two and the cathode foil（11）The positive wire of connection（13）And
With the anode foil（12）The negative wire of connection（14）, the positive wire（13）With the negative wire（14）Through described
Aluminium lid（30）And stretch out the aluminium lid（30）Outside, which is characterized in that the core packet（10）For stacked core packet, the cathode foil
（11）With the anode foil（12）To be sintered foil, the cathode foil（11）It is equipped with the positive pole ear of multiple stackings（111）, it is described
Anode foil（12）It is equipped with the negative lug of multiple stackings（121）, each positive pole ear（111）Outer surface on be reserved with
For by multiple positive pole ears（111）With the positive wire（11）The anode welding region welded together（1111）,
Each negative lug（121）Outer surface on be reserved with for by multiple negative lugs（121）Draw with the cathode
Line（14）The cathode welding region welded together（1211）.
2. low-loss square electric container according to claim 1, which is characterized in that
The positive wire（13）Including sequentially connected anode aluminium tongue, anode aluminium stalk portion（131）With positive wire portion
（132）, the anode aluminium tongue is in flat, and the anode aluminium tongue is inserted into the positive pole ear of stacking（111）Between
And it is welded in the anode welding region（1111）On；The negative wire（14）Including sequentially connected cathode aluminium tongue, bear
Pole aluminium stalk portion（141）With negative wire portion（142）, the cathode aluminium tongue is in flat, and the cathode aluminium tongue is inserted into layer
The folded negative lug（121）Between and be welded in the cathode welding region（1211）On.
3. low-loss square electric container according to claim 2, which is characterized in that
The core packet（10）Outer surface is coated with for the positive pole ear（111）With the negative lug（121）Solder joint
Carry out the winding layer of reinforcement and strengthening.
4. low-loss square electric container according to claim 3, which is characterized in that
The winding layer is is wound in the core packet（10）The adhesive tape of outer surface（40）, the adhesive tape（40）For what will be welded
The core packet（10）Carry out cross winding.
5. low-loss square electric container according to claim 4, which is characterized in that
The adhesive tape（40）Including being horizontally set at the core packet（10）First adhesive tape of upper surface（41）And with being longitudinally disposed at
The core packet（10）Second adhesive tape of upper surface（42）, first adhesive tape（41）With second adhesive tape（42）It is staggered to be used for
The core packet that will be welded（10）Bundled fixed.
6. low-loss square electric container according to claim 5, which is characterized in that
First adhesive tape（41）With second adhesive tape（42）Broadband be respectively less than or five points equal to the electrolytic paper width
One of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316474.7A CN108257787A (en) | 2017-12-12 | 2017-12-12 | Low-loss square electric container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316474.7A CN108257787A (en) | 2017-12-12 | 2017-12-12 | Low-loss square electric container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108257787A true CN108257787A (en) | 2018-07-06 |
Family
ID=62722435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711316474.7A Pending CN108257787A (en) | 2017-12-12 | 2017-12-12 | Low-loss square electric container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108257787A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008211020A (en) * | 2007-02-27 | 2008-09-11 | Nichicon Corp | Chip type aluminum electrolytic capacitor |
| CN102017034A (en) * | 2008-04-22 | 2011-04-13 | 东洋铝株式会社 | Electrode material for aluminum electrolytic capacitor and process for producing the electrode material |
| CN106409516A (en) * | 2016-08-31 | 2017-02-15 | 湖南艾华集团股份有限公司 | Ultra-thin high-capacity laminated aluminum electrolytic capacitor and preparation method thereof |
| CN107275090A (en) * | 2017-08-15 | 2017-10-20 | 湖南艾华集团股份有限公司 | A kind of square electric container |
| CN207909717U (en) * | 2017-12-12 | 2018-09-25 | 湖南艾华集团股份有限公司 | Low-loss square electric container |
-
2017
- 2017-12-12 CN CN201711316474.7A patent/CN108257787A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008211020A (en) * | 2007-02-27 | 2008-09-11 | Nichicon Corp | Chip type aluminum electrolytic capacitor |
| CN102017034A (en) * | 2008-04-22 | 2011-04-13 | 东洋铝株式会社 | Electrode material for aluminum electrolytic capacitor and process for producing the electrode material |
| CN106409516A (en) * | 2016-08-31 | 2017-02-15 | 湖南艾华集团股份有限公司 | Ultra-thin high-capacity laminated aluminum electrolytic capacitor and preparation method thereof |
| CN107275090A (en) * | 2017-08-15 | 2017-10-20 | 湖南艾华集团股份有限公司 | A kind of square electric container |
| CN207909717U (en) * | 2017-12-12 | 2018-09-25 | 湖南艾华集团股份有限公司 | Low-loss square electric container |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180706 |