CN208189406U - A kind of rectangular stacked aluminium electrolutic capacitor - Google Patents
A kind of rectangular stacked aluminium electrolutic capacitor Download PDFInfo
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- CN208189406U CN208189406U CN201820285615.7U CN201820285615U CN208189406U CN 208189406 U CN208189406 U CN 208189406U CN 201820285615 U CN201820285615 U CN 201820285615U CN 208189406 U CN208189406 U CN 208189406U
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- aluminium electrolutic
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Abstract
A kind of rectangular stacked aluminium electrolutic capacitor, including core packet, shell and seal assembly；Core packet includes cathode foil, electrolytic paper and anode foil, and cathode foil, electrolytic paper and anode foil stack gradually fixation, positive guide pin and negative electrode guide needle are connected separately in cathode foil and anode foil；Positive guide pin and negative electrode guide needle include the interconnecting piece being connected in turn, stalk portion and leading part；In the form of sheets, the stalk portion is cylindrical for interconnecting piece, and leading part is horizontally disposed and wave-shaped, zigzag or rectangular-ambulatory-plane structure extend in the open end of shell；Connecting tab is provided in cathode foil and anode foil, the shape of connecting tab and the shape of interconnecting piece are identical, are fixedly connected between connecting tab and interconnecting piece.The rectangular stacked aluminium electrolutic capacitor of the utility model, compact structure, impregnation is high-efficient, ESR value is small and makes full use of inner space.Meanwhile the aluminium electrolutic capacitor in the present embodiment do not need pedestal can stand in the circuit board complete Reflow Soldering welding.
Description
Technical field
The utility model relates to a kind of aluminium electrolutic capacitors, more particularly to a kind of rectangular stacked aluminium electrolutic capacitor.
Background technique
Patch type capacitor is a kind of light weight, the new electronic component that thickness is thin, small in size, in compact-sized, body
It is widely used in product each electronic product small, with high accuracy.Existing patch capacitor production technology is in traditional aluminium electroloysis
The components such as seat board are increased on the basis of capacitor fabrication technique, while increasing the correlation steps such as seat board molding.
Its feature: first, patch capacitor and bottom plate be it is dead with soldering, capacitor bottom and bottom plate tightly paste extremely, do not have completely
There is any gap；Second, route back does not have any solder joint, thus without any a possibility that causing short circuit.And on the other hand,
It is all higher than plug-in unit capacitor in terms of element or production technology cost that no matter patch capacitor is selected, and due to works such as welding
Skill, so that capacitor element is difficult to dismounting and change, this affects the maintainability and sustainability of electronic product.
Utility model content
The technical problems to be solved in the utility model be overcome the deficiencies of the prior art and provide one kind can be in the circuit board
Uprightly, and the rectangular stacked aluminium electrolutic capacitor of pedestal is not needed, and it belongs to patch type aluminium electrolutic capacitor.
In order to solve the above technical problems, the utility model proposes technical solution are as follows: a kind of rectangular stacked aluminium electroloysis electricity
Container, including core packet, shell and seal assembly；The seal assembly seals core packet inside the shell, and the core packet includes anode
Foil, electrolytic paper and anode foil, cathode foil, electrolytic paper and anode foil stack gradually fixation, are separately connected in cathode foil and anode foil
There are positive guide pin and negative electrode guide needle；The anode guide pin and negative electrode guide needle include the interconnecting piece being connected in turn, stalk portion
And leading part；In the form of sheets, the stalk portion is cylindrical for the interconnecting piece, and the leading part is horizontally disposed and wave-shaped, saws
Dentation or rectangular-ambulatory-plane structure extend in the open end of shell；
Connecting tab, the shape of the connecting tab and the shape of interconnecting piece are provided in the cathode foil and anode foil
It is identical, it is fixedly connected between the connecting tab and interconnecting piece.In the utility model, the lead of positive guide pin and negative electrode guide needle
Portion can be mirror symmetry arrangement and be also possible to be centrosymmetrically arranged, since leading part is horizontally disposed and wave-shaped, sawtooth
Shape or rectangular-ambulatory-plane structure extend in the open end of shell, it should be pointed out that the leading part of rectangular-ambulatory-plane structure is generally present in
In bulk capacitor, the volume of bulk capacitor is big, and weight die, which needs more dense leading part to be supported, prevents capacitor
The rollover of ontology.Leading part, which can be directly placed on the wiring board for be coated with solder, when carrying out Reflow Soldering flows back
Weldering.
Above-mentioned rectangular stacked aluminium electrolutic capacitor, it is preferred that the seal assembly includes that rubber chock and sealing are outer
Lid, is tightly connected, the rubber chock includes bottom plate and guide portion, the guide portion between the rubber chock and sealing external cover
Surrounding be provided with chamfering in boss-shaped.
Above-mentioned rectangular stacked aluminium electrolutic capacitor, it is preferred that connection is interference fitted between the bottom plate and shell.
Above-mentioned rectangular stacked aluminium electrolutic capacitor, it is preferred that be provided with what leading part passed through on the rubber chock
Through-hole, and stalk portion is compressed in through-hole；Sealing hole is provided on the sealing external cover, sealing hole is arranged in the through-hole
Lower part, leading part pass through sealing hole, sealing hole heat-curable glue or optic-solidified adhesive filling sealing.In the present invention, obstruct
Before this by being press-connected between portion and rubber chock, glue envelope is then carried out by heat-curable glue or optic-solidified adhesive, is existed in this way
When carrying out high temperature ageing, the electrolyte of interior of shell will not be waved boiling by stalk portion and the engaging portion of rubber chock
It issues to influence the service life of capacitor.
Above-mentioned rectangular stacked aluminium electrolutic capacitor, it is preferred that the surrounding of the sealing external cover stretches out sealing external cover
Ontology is formed with one and shell overlapped weld part, the outside Laser Welding sealing welding of the weld part and shell aperture end
It connects.In the utility model, when core is packaged within shell, core packet is packed in shell containing electrolyte is soaked with, in core
When, electrolyte inevitably remains on the inner wall of shell；If carrying out Laser Welding with the inner wall of shell and sealing external cover
The phenomenon that welding, will lead to " sparking "；Therefore the ontology that the surrounding of the sealing external cover of the utility model stretches out sealing shell is formed with
One with outer cover overlapped weld part, the outside at weld part and shell aperture end is welded with Laser Welding, and there will be no electrolyte
Influence.
Above-mentioned rectangular stacked aluminium electrolutic capacitor, it is preferred that muti-piece cathode foil and anode foil in the core packet
Connecting tab is stacked together, and the interconnecting piece of positive guide pin and negative electrode guide needle is respectively inserted into the connection of cathode foil and anode foil
Among tab, and weld together.In the present invention, due to accompanying electrolytic paper between cathode foil and anode foil, therefore just
Pole foil and the connecting tab of anode foil thickness stacked together are less than the thickness of core packet, thus at last inserted with positive guide pin
With the interconnecting piece of negative electrode guide needle, the thickness of the connecting tab in cathode foil and anode foil is not more than the thickness of core packet.
Above-mentioned rectangular stacked aluminium electrolutic capacitor, it is preferred that the outermost layer of the core packet is wound with one layer or more
Layer fixation adhesive tape.
Above-mentioned rectangular stacked aluminium electrolutic capacitor, it is preferred that the fixation adhesive tape layer cross winding.
Compared with the prior art, the advantages of the utility model are: the rectangular stacked alminium electrolytic condenser of the utility model
Device is to belong to patch type capacitor, but do not have pedestal, reduced cost for comparing patch type capacitor；It welds simultaneously online
Replacement capacitor is also more convenient after on the plate of road, and replacement when only needs to cut leading part, and new capacitor is in welding
It can.Abandon in the utility model using traditional corrosion formed aluminum foil, the aluminium foil formed using sintering, and tab position not into
Row sintering and chemical conversion, so that welding region only has the presence of aluminium.Conductive electrolyte is easier to enter the hole of core packet inner foil
Hole can greatly improve impregnation efficiency；Due to reserved welding region, so that welding kesistance will be very small；Using the knot of stacking
Structure, will fit closely between layers, thus the ESR(Equivalent Series Resistance of product, equivalent series
Resistance) value will also become smaller；Stepped construction core packet center can make full use of interiors of products space without hollow hole.The utility model
Rectangular stacked aluminium electrolutic capacitor, compact structure, impregnation is high-efficient, ESR value is small and makes full use of inner space.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rectangular stacked aluminium electrolutic capacitor of the utility model.
Fig. 2 is the structural schematic diagram of positive guide pin and negative electrode guide needle leading part in embodiment 1.
Fig. 3 is the structural schematic diagram of positive guide pin and negative electrode guide needle leading part in other embodiments.
Fig. 4 is the structural schematic diagram of positive guide pin or negative electrode guide needle interconnecting piece and stalk portion in the utility model.
Fig. 5 is the structural schematic diagram of rubber chock in the utility model.
Marginal data
1, core packet；2, shell；3, interconnecting piece；4, stalk portion；5, leading part；6, connecting tab；7, rubber chock；8, sealing is outer
Lid；9, bottom plate；10, guide portion；11, through-hole；12, sealing hole；13, heat-curable glue or optic-solidified adhesive；14, weld part.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, meticulously describes, but the protection scope of the utility model is not limited to embodiment in detail below.
It should be strongly noted that when to be described as " be fixed on, be fixed in, be connected to or be connected to " another for a certain element
When on element, it can be directly fixed, affixed, connection or is connected on another element, be also possible to by connecting among other
Fitting is indirectly fixed, affixed, connects or is connected on another element.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, and being not intended to limitation, this is practical
Novel protection scope.
Embodiment 1
The rectangular stacked aluminium electrolutic capacitor of one kind as shown in Figure 1, including core packet 1, shell 2 and seal assembly；Sealing
Core packet is sealed in shell 2 by component, and core packet 1 includes cathode foil, electrolytic paper and anode foil, cathode foil, electrolytic paper and anode foil
Fixation is stacked gradually, positive guide pin and negative electrode guide needle are connected separately in cathode foil and anode foil；Positive guide pin and negative electrode guide needle
It include interconnecting piece 3, stalk portion 4 and the leading part 5 being connected in turn；In the form of sheets, stalk portion 4 is cylindrical, lead for interconnecting piece 3
Portion 5 is horizontally disposed and wave-shaped.In other embodiments, leading part 5 can be in rectangular-ambulatory-plane structure described in Fig. 3, still
This kind of general bodily forms of capacitor are larger.
Connecting tab 6 is provided in cathode foil and anode foil, the shape of connecting tab 6 is identical as the shape of interconnecting piece 3,
Interconnecting piece 3 is also identical as the size of connecting tab 6 in the present embodiment.The connection of muti-piece cathode foil and anode foil in core packet 1
Tab 6 is stacked together, and the interconnecting piece 3 of positive guide pin and negative electrode guide needle is respectively inserted into the connection pole of cathode foil and anode foil
Among ear 6, and weld together.
In the present embodiment, seal assembly includes rubber chock 7 and sealing external cover 8, between rubber chock 7 and sealing external cover 8
It is tightly connected, rubber chock 7 includes bottom plate 9 and guide portion 10, and the surrounding of guide portion 10 is provided with chamfering in boss-shaped.Bottom plate 9
Connection is interference fitted between shell 2.
In the present embodiment, the through-hole 11 that leading part 5 passes through is provided on rubber chock 7, and stalk portion 4 is compressed in through-hole
In 11；Sealing hole 12 is provided on sealing external cover 8, the lower part of sealing hole 12 is arranged in through-hole 11, and leading part 5 passes through sealing hole
12, the heat-curable glue of sealing hole 12 or the filling of optic-solidified adhesive 13 seal.
In the present embodiment, the ontology that the surrounding of sealing external cover 8 stretches out sealing external cover 8 is formed with one and shell overlapped weldering
Socket part 14, the outside Laser Welding sealing welding of weld part 14 and 2 open end of shell.
In the present embodiment, the outermost layer of core packet 1 is wound with one layer or multilayer fixation adhesive tape.Fixation adhesive tape layer cross twines
Around.
The rectangular stacked aluminium electrolutic capacitor of the present embodiment, compact structure, impregnation is high-efficient, ESR value is small and sufficiently sharp
Use inner space.Meanwhile the aluminium electrolutic capacitor in the present embodiment does not need pedestal and can stand to complete back in the circuit board
The welding of fluid welding.
Claims (8)
1. a kind of rectangular stacked aluminium electrolutic capacitor, including core packet, shell and seal assembly；The seal assembly is by core Bao Mi
Inside the shell, the core packet includes cathode foil, electrolytic paper and anode foil to envelope, and cathode foil, electrolytic paper and anode foil stack gradually solid
It is fixed, positive guide pin and negative electrode guide needle are connected separately in cathode foil and anode foil；It is characterized in that, the anode guide pin and cathode
Guide pin includes the interconnecting piece being connected in turn, stalk portion and leading part；In the form of sheets, the stalk portion is in cylinder to the interconnecting piece
Shape, the leading part is horizontally disposed and wave-shaped, zigzag or rectangular-ambulatory-plane structure extend in the open end of shell；
Connecting tab, the shape and the shape phase of interconnecting piece of the connecting tab are provided in the cathode foil and anode foil
Together, it is fixedly connected between the connecting tab and interconnecting piece.
2. rectangular stacked aluminium electrolutic capacitor according to claim 1, it is characterised in that: the seal assembly includes rubber
Rubber plug block and sealing external cover are tightly connected between the rubber chock and sealing external cover, and the rubber chock includes bottom plate and draws
Portion is led, the surrounding of the guide portion is provided with chamfering in boss-shaped.
3. rectangular stacked aluminium electrolutic capacitor according to claim 2, it is characterised in that: between the bottom plate and shell
Interference fit connection.
4. rectangular stacked aluminium electrolutic capacitor according to claim 2, it is characterised in that: be arranged on the rubber chock
There is the through-hole that leading part passes through, and stalk portion is compressed in through-hole；Sealing hole, the through-hole are provided on the sealing external cover
The lower part of sealing hole is set, and leading part passes through sealing hole, sealing hole heat-curable glue or optic-solidified adhesive filling sealing.
5. rectangular stacked aluminium electrolutic capacitor according to claim 2, it is characterised in that: the surrounding of the sealing external cover
The ontology for stretching out sealing external cover is formed with one and shell overlapped weld part, and the outside at the weld part and shell aperture end is used
Laser Welding sealing welding.
6. rectangular stacked aluminium electrolutic capacitor according to claim 1, it is characterised in that: the muti-piece in the core packet is just
Pole foil and the connecting tab of anode foil are stacked together, and the interconnecting piece of positive guide pin and negative electrode guide needle is respectively inserted into cathode foil
Among the connecting tab of anode foil, and weld together.
7. rectangular stacked aluminium electrolutic capacitor according to claim 1, it is characterised in that: the outermost layer of the core packet twines
It is wound with one layer or multilayer fixation adhesive tape.
8. rectangular stacked aluminium electrolutic capacitor according to claim 7, it is characterised in that: the fixation adhesive tape layer cross
Shape winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285615.7U CN208189406U (en) | 2018-03-01 | 2018-03-01 | A kind of rectangular stacked aluminium electrolutic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285615.7U CN208189406U (en) | 2018-03-01 | 2018-03-01 | A kind of rectangular stacked aluminium electrolutic capacitor |
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| Publication Number | Publication Date |
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| CN208189406U true CN208189406U (en) | 2018-12-04 |
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| CN201820285615.7U Active CN208189406U (en) | 2018-03-01 | 2018-03-01 | A kind of rectangular stacked aluminium electrolutic capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048315A (en) * | 2019-12-26 | 2020-04-21 | 东莞东阳光科研发有限公司 | Method for manufacturing laminated aluminum electrolytic capacitor and capacitor manufactured by same |
| CN111276647A (en) * | 2020-03-30 | 2020-06-12 | 湖北亿纬动力有限公司 | Battery, battery module and preparation method of battery |
-
2018
- 2018-03-01 CN CN201820285615.7U patent/CN208189406U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048315A (en) * | 2019-12-26 | 2020-04-21 | 东莞东阳光科研发有限公司 | Method for manufacturing laminated aluminum electrolytic capacitor and capacitor manufactured by same |
| CN111048315B (en) * | 2019-12-26 | 2021-08-27 | 东莞东阳光科研发有限公司 | Method for manufacturing laminated aluminum electrolytic capacitor and capacitor manufactured by same |
| CN111276647A (en) * | 2020-03-30 | 2020-06-12 | 湖北亿纬动力有限公司 | Battery, battery module and preparation method of battery |
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