CN110379631A - A kind of small size solid-state aluminum electrolytic capacitor - Google Patents
A kind of small size solid-state aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN110379631A CN110379631A CN201910539807.5A CN201910539807A CN110379631A CN 110379631 A CN110379631 A CN 110379631A CN 201910539807 A CN201910539807 A CN 201910539807A CN 110379631 A CN110379631 A CN 110379631A
- Authority
- CN
- China
- Prior art keywords
- negative electrode
- electrode pin
- aluminum hull
- fuse
- electrolytic capacitor
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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 OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
- H01G9/151—Solid electrolytic capacitors with wound foil electrodes
Abstract
The invention discloses a kind of small size solid-state aluminum electrolytic capacitor, which aims to solve the problem that aluminum hull very likely there is technical issues that because contacting with guide pin in small size solid-state aluminum electrolytic capacitor now；The solid-state aluminum electrolytic capacitor includes aluminum hull, fuse, negative electrode pin and negative electrode pin, and the aluminum hull has with a tight waist in opening lower press, and the place with a tight waist in the aluminum hull is arranged with rubber plug, and the opening of the rubber plug and the aluminum hull passes through sealing sealing.It can guarantee the firm of its fixed structure by the technical solution, tradition sealing is avoided because guide pin is short-circuit caused by easily contacting with aluminum hull, and it is impaired to avoid oxidation film to the maximum extent, reduce step-up of leakage current, simultaneously, the product high convenient for height, size is small carries out surface mount, increases the distance of pad, reduces the length of product installation and the thickness of product itself.
Description
Technical field
The invention belongs to the technical fields of solid-state aluminum electrolytic capacitor, and in particular to a kind of small size solid-state alminium electrolytic condenser
Device.
Background technique
Aluminium electrolutic capacitor is also known as capacitor, is a kind of energy-storage travelling wave tube, and structure can be divided into fixed capacitor, half variable capacitance
Three kinds of device, variable condenser, its feature are that capacity is big, but also electric leakage is big, error is big, stability is poor, and it is other to be commonly used for exchange
Road and filtering are also used for signal coupling when of less demanding.Aluminium electrolutic capacitor can be generally divided into four classes, i.e. wire type aluminium electricity
Electrolysis condenser, ox horn type aluminium electrolutic capacitor, bolt type aluminium electrolutic capacitor, solid-state aluminum electrolytic capacitor, wherein with solid aluminum
Electrolytic capacitor is most commonly seen.
Currently, market is for intellectual product miniaturization, portability, high availability etc., more stringent requirements are proposed, from
And make wherein element be also required to continuously improve, to adapt to its light-weighted requirement, capacitor is also in this way, nowadays also more next
It more needs toward miniaturization.But in capacitor packaging structure traditional now, small size capacitor guide pin has because of pole can
It can be contacted with aluminum hull and cause short circuit, and small size capacitor other performances such as electric leakage after the vertical processing of group are easy to happen variation,
Therefore, it needs to find encapsulation of the new encapsulating structure of one kind to solve the problems, such as small size；Meanwhile for higher-height capacitor
Installation on circuit boards when, will definitely increase product thickness, and capacitor higher for size low height, not only increase production
Product thickness, and anti-vibration and stability are poor.Chinese invention patent application (publication number CN102637521A) discloses a kind of Z
Type surface mount manufacturing method, the manufacture aluminium electrolutic capacitor that this method can be convenient and simple, but the Z that this method is small for size
Type capacitor is easy to happen short circuit, and Z-type installation also will increase installation length because pad is too close, meanwhile, it is disclosed
Auxiliary device is used in technical solution, and it is bad to be bound to cause heat dissipation again in this way.Therefore, it is necessary to high for size low height
Aluminum capacitor designs a kind of novel surface mounting structure, carries out surface mount to be suitable for Reflow Soldering.
Summary of the invention
(1) technical problems to be solved
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of small size solid-state aluminum electrolytic capacitors, should
Solid-state aluminum electrolytic capacitor aims to solve the problem that aluminum hull and guide pin are very likely because connect in small size solid-state aluminum electrolytic capacitor now
Touching there is technical issues that；It can guarantee the firm of its fixed structure by the technical solution, avoid traditional envelope
Mouth reduces leakage current because guide pin is short-circuit caused by easily contacting with aluminum hull, and avoids oxidation film to the maximum extent and be damaged
Go up, meanwhile, the product high convenient for height, size is small carries out surface mount, increases the distance of pad, reduces product peace
The length of dress and the thickness of product itself.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides such a small size solid-state aluminum electrolytic capacitors, this is solid
State aluminium electrolutic capacitor includes aluminum hull, fuse, negative electrode pin and negative electrode pin, and fuse, the core are provided in the aluminum hull
Son is that anode foils, Cathode Foil and electrolytic paper are wound, and the electrolytic paper is between the anode foils and Cathode Foil and by two
Person separates, and the anode foils of the fuse are drawn by negative electrode pin from the opening of aluminum hull, and the Cathode Foil of the fuse passes through yin
Pole pin is drawn from the opening of aluminum hull；Wherein, the aluminum hull has with a tight waist in opening lower press, and in the aluminum hull
Place with a tight waist is arranged with rubber plug, and the opening of the rubber plug and the aluminum hull is sealed by sealing, and the anode foils of the fuse pass through
Negative electrode pin passes through the rubber plug of aluminum hull and sealing is drawn, the Cathode Foil of the fuse by negative electrode pin pass through aluminum hull rubber plug and
Sealing is drawn, and simultaneously to the right-angle bending of front side or rear side one time after the negative electrode pin and negative electrode pin extraction, the cathode draws
Secondary right-angle bending outward is distinguished after right-angle bending of foot and negative electrode pin.
Preferably, the aluminum hull outer diameter≤4mm.
Preferably, the sealing with a thickness of 0.3-10mm.
Preferably, the length of right-angle bending of the negative electrode pin and negative electrode pin is greater than capacitor body radius 0.3-
The length of 2mm, the negative electrode pin and the secondary right-angle bending of negative electrode pin is greater than capacitor body radius 0.05-2mm, and institute
It is set for flat after stating negative electrode pin and the secondary right-angle bending of negative electrode pin；Negative electrode pin and the secondary right-angle bending of negative electrode pin
It is welding section afterwards, can increase the contact area of welding for flat.
Wherein, settable on fuse in the aluminum hull to be cased with 2 rubber plugs, meanwhile, aluminum hull has beam at 2 Position on rubber stopper
Waist；And the aluminum hull, after being packed into fuse and rubber plug, aluminum hull is used to inject glue in the remaining height of opening and is sealed
It is more firm can to make capacitor body in this way for glue, and encapsulating structure is simple, while it is steady to obtain sound construction, performance
The small size solid aluminum capacitors fixed, leakage current is small, reflux-resisting welded effect is good.
(3) beneficial effect
Compared with prior art, the beneficial effects of the present invention are:
Solid-state aluminum electrolytic capacitor of the invention carries out sealing, a side to aluminum hull opening by the way of dispensing sealing
Face keeps capacitor body fixed more firm, avoids short circuit caused by tradition sealing is easily contacted because of guide pin with aluminum hull；Separately
On the one hand, dispensing sealing is fixed to guide pin more firm, so that capacitor guide pin reduces pair during dog-ear Bending Processing
It is damaged caused by product structure, and avoids oxidation film to the maximum extent and be damaged, reduce step-up of leakage current.In addition, of the invention
Solid-state aluminum electrolytic capacitor breakthroughly using a right-angle bending and secondary right-angle bending folding foot mode, consequently facilitating high
The product that degree is high, size is small carries out surface mount, increases the distance of pad, reduces the length and product sheet of product installation
The thickness of body.
Detailed description of the invention
Illustrate the specific embodiment of the invention or technical solution in the prior art in order to clearer, it below will be to specific
Embodiment describes required attached drawing in the prior art and is briefly described, it should be apparent that, it is described below
Attached drawing is only one embodiment of the present invention, to those skilled in the art, is not being made the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of main view of embodiment of small size solid-state aluminum electrolytic capacitor of the present invention.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is the bottom view of Fig. 1.
The label in accompanying drawing is: 1- aluminum hull, 11- is with a tight waist, 2- fuse, 3- rubber plug, 4- sealing, 5- negative electrode pin, 6- anode
Pin.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below to this
Technical solution in invention specific embodiment carries out clear, complete description, with the present invention is further explained, it is clear that retouched
The specific embodiment stated is only a part of embodiment of the invention, rather than whole patterns.
Embodiment 1
Present embodiment is solid-state aluminum electrolytic capacitor, which includes aluminum hull, fuse, sun
Pole pin and negative electrode pin, aluminum hull outer diameter are 2.2mm, and fuse is provided in aluminum hull, and fuse is anode foils, Cathode Foil and electrolytic paper
Wind, electrolytic paper separates between anode foils and Cathode Foil and by the two, aluminum hull have in opening lower press it is with a tight waist,
And the place with a tight waist in aluminum hull is arranged with rubber plug, the opening of rubber plug and aluminum hull is sealed by sealing, sealing with a thickness of
The anode foils of 0.3mm, fuse pass through the rubber plug of aluminum hull by negative electrode pin and sealing is drawn, and the Cathode Foil of fuse is drawn by cathode
Foot passes through the rubber plug of aluminum hull and sealing is drawn, simultaneously to right-angle bending of rear side, yin after negative electrode pin and negative electrode pin extraction
Secondary right-angle bending, negative electrode pin and negative electrode pin are once straight outward respectively after right-angle bending of pole pin and negative electrode pin
The length specific capacitance device ontology radius of angle bending beats 0.3mm, the length ratio electricity of negative electrode pin and the secondary right-angle bending of negative electrode pin
The big 0.05mm of vessel radius, and it is set after negative electrode pin and the secondary right-angle bending of negative electrode pin for flat.
Embodiment 2
Present embodiment is solid-state aluminum electrolytic capacitor, which includes aluminum hull, fuse, sun
Pole pin and negative electrode pin, aluminum hull outer diameter are 3.0mm, and fuse is provided in aluminum hull, and fuse is anode foils, Cathode Foil and electrolytic paper
Wind, electrolytic paper separates between anode foils and Cathode Foil and by the two, aluminum hull have in opening lower press it is with a tight waist,
And the place with a tight waist in aluminum hull is arranged with rubber plug, the opening of rubber plug and aluminum hull is sealed by sealing, sealing with a thickness of
The anode foils of 4.5mm, fuse pass through the rubber plug of aluminum hull by negative electrode pin and sealing is drawn, and the Cathode Foil of fuse is drawn by cathode
Foot passes through the rubber plug of aluminum hull and sealing is drawn, simultaneously to the right-angle bending of front side one time, yin after negative electrode pin and negative electrode pin extraction
Secondary right-angle bending, negative electrode pin and negative electrode pin are once straight outward respectively after right-angle bending of pole pin and negative electrode pin
The length specific capacitance device ontology radius of angle bending beats 1.0mm, the length ratio electricity of negative electrode pin and the secondary right-angle bending of negative electrode pin
The big 1mm of vessel radius, and it is set after negative electrode pin and the secondary right-angle bending of negative electrode pin for flat.
Embodiment 3
Present embodiment is solid-state aluminum electrolytic capacitor, which includes aluminum hull, fuse, sun
Pole pin and negative electrode pin, aluminum hull outer diameter are 4mm, and fuse is provided in aluminum hull, and fuse is anode foils, Cathode Foil and electrolysis paper roll
Around forming, electrolytic paper separates between anode foils and Cathode Foil and by the two, and aluminum hull has 2 beams in opening lower press
Waist, and girdle the waist each of in aluminum hull and locate to be arranged with rubber plug, the opening of rubber plug and aluminum hull passes through sealing and seals, the thickness of sealing
Degree is 10mm, and the anode foils of fuse pass through the rubber plug of aluminum hull by negative electrode pin and sealing is drawn, and the Cathode Foil of fuse passes through yin
Pole pin passes through the rubber plug of aluminum hull and sealing is drawn, simultaneously to right-angle folding of rear side after negative electrode pin and negative electrode pin extraction
It is curved, secondary right-angle bending outward, negative electrode pin and negative electrode pin are distinguished after right-angle bending of negative electrode pin and negative electrode pin
The length specific capacitance device ontology radius of right-angle bending beats 2mm, the length of negative electrode pin and the secondary right-angle bending of negative electrode pin
The specific capacitance device big 2mm of ontology radius, and it is set after negative electrode pin and the secondary right-angle bending of negative electrode pin for flat.
The foregoing describe technical characteristics of the invention and basic principle and associated advantages, for those skilled in the art
For, it is clear that the present invention is not limited to the details of above-mentioned exemplary embodiment, and without departing substantially from design of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Above-mentioned specific embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims and
It is not that above description limits, it is intended that all changes that come within the meaning and range of equivalency of the claims are included
In the present invention.
Although not each embodiment is only in addition, it should be understood that this specification is described according to each embodiment
It contains an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art answer
When considering the specification as a whole, the technical solution in each embodiment may also be suitably combined to form art technology
The other embodiments that personnel are understood that.
Claims (4)
1. a kind of small size solid-state aluminum electrolytic capacitor, the solid-state aluminum electrolytic capacitor include aluminum hull, fuse, negative electrode pin and
Negative electrode pin is provided with fuse in the aluminum hull, and the fuse is that anode foils, Cathode Foil and electrolytic paper are wound, the electricity
Solution paper separates between the anode foils and Cathode Foil and by the two, and the anode foils of the fuse pass through negative electrode pin from aluminum hull
Opening draw, the Cathode Foil of the fuse is drawn by negative electrode pin from the opening of aluminum hull；It is characterized in that, the aluminium
Shell has with a tight waist in opening lower press, and the place with a tight waist in the aluminum hull is arranged with rubber plug, the rubber plug and the aluminum hull
Opening sealed by sealing, the anode foils of the fuse pass through the rubber plug of aluminum hull by negative electrode pin and sealing is drawn, institute
The Cathode Foil for stating fuse passes through the rubber plug of aluminum hull by negative electrode pin and sealing is drawn, and the negative electrode pin and negative electrode pin are drawn
Afterwards simultaneously to the right-angle bending of front side or rear side one time, after right-angle bending of the negative electrode pin and negative electrode pin respectively outward
Secondary right-angle bending.
2. a kind of small size solid-state aluminum electrolytic capacitor according to claim 1, which is characterized in that the negative electrode pin and
The length of right-angle bending of negative electrode pin is greater than capacitor body radius 0.3-2mm, the negative electrode pin and negative electrode pin two
The length of secondary right-angle bending is greater than capacitor body radius 0.05-2mm, and the negative electrode pin and the secondary right angle of negative electrode pin
It is set after bending for flat.
3. a kind of small size solid-state aluminum electrolytic capacitor according to claim 1, which is characterized in that the aluminum hull outer diameter≤
4mm。
4. a kind of small size solid-state aluminum electrolytic capacitor according to claim 1, which is characterized in that the thickness of the sealing
For 0.3-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910539807.5A CN110379631A (en) | 2019-06-21 | 2019-06-21 | A kind of small size solid-state aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910539807.5A CN110379631A (en) | 2019-06-21 | 2019-06-21 | A kind of small size solid-state aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110379631A true CN110379631A (en) | 2019-10-25 |
Family
ID=68250502
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910539807.5A Pending CN110379631A (en) | 2019-06-21 | 2019-06-21 | A kind of small size solid-state aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750747A (en) * | 2020-06-24 | 2020-10-09 | 无锡盛景电子科技有限公司 | Digital electronic detonator based on solid-state aluminum capacitor |
| WO2022156723A1 (en) * | 2021-01-19 | 2022-07-28 | 安施新能源(成都)有限公司 | Electrochemical energy storage apparatus |
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| CN111750747A (en) * | 2020-06-24 | 2020-10-09 | 无锡盛景电子科技有限公司 | Digital electronic detonator based on solid-state aluminum capacitor |
| WO2022156723A1 (en) * | 2021-01-19 | 2022-07-28 | 安施新能源(成都)有限公司 | Electrochemical energy storage apparatus |
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Application publication date: 20191025 |
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| RJ01 | Rejection of invention patent application after publication |