CN105006369B - Aluminium electrolutic capacitor - Google Patents
Aluminium electrolutic capacitor Download PDFInfo
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- CN105006369B CN105006369B CN201510368376.2A CN201510368376A CN105006369B CN 105006369 B CN105006369 B CN 105006369B CN 201510368376 A CN201510368376 A CN 201510368376A CN 105006369 B CN105006369 B CN 105006369B
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- aluminium foil
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- current collecting
- collecting plates
- upper current
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Abstract
The present invention discloses a kind of aluminium electrolutic capacitor, which includes head cover, insulating sleeve, upper current collecting plates, core group, next part flow table, shell；Core group includes positive pole aluminium foil, electrolytic paper and cathode aluminium foil；Electrolytic paper is folded between positive pole aluminium foil and cathode aluminium foil, and with positive pole aluminium foil and the co-wound formation core group of cathode aluminium foil；Shell is arranged in the tubular of one end open, and next part flow table, core group and upper current collecting plates are embedded inside the shell successively；Positive pole aluminium foil manifests electrolytic paper and cathode aluminium foil to form positive contact jaw upwards, and cathode aluminium foil manifests downwards electrolytic paper and positive pole aluminium foil to form negative contact jaw；Next part flow table, upper current collecting plates are corresponded to be welded to connect with positive contact jaw, negative contact jaw；One end of insulating sleeve is embedded inside the shell and is set in the periphery of current collecting plates；Head cover is connect with upper current collecting plates, and is sealingly disposed in the other end of insulating sleeve.Aluminium electrolutic capacitor provided by the invention has higher current-carrying capability and resistance to high ripple current ability.
Description
Technical field
The present invention relates to capacitor manufacturing technology field, more particularly to a kind of aluminium electrolutic capacitor.
Background technology
Aluminium electrolutic capacitor has a large amount of utilization in industrial power and consumer electronics product at present, and aluminium is required in performance
The resistance to high ripple of electrolytic capacitor, and meet Low ESR, the requirements such as super-pressure.And the structure of existing aluminium electrolutic capacitor is generally wrapped
Aluminum hull and battery core are included, battery core includes positive pole aluminium foil, cathode aluminium foil, positive guide pin, negative electrode guide needle；Positive guide pin and positive pole aluminium foil riveting
It connects, negative electrode guide needle and cathode aluminium foil riveting, or using the connection for leading chaff progress terminal and internal positive and negative anodes foil.Using guide pin
Chaff is either led due to guide pin or leads that chaff cross-sectional area is small, it is small with the contact surface of positive and negative anodes aluminium foil, thus metal impedance
Greatly, rated current-carrying capacity is small, so limiting the raising of the performance of product to a certain extent.When have high current by when, guide pin or
Person, which leads chaff or even exposed terminal, can occur fusing failure.
Invention content
The main object of the present invention is to provide a kind of aluminium electrolutic capacitor, it is intended to solve existing aluminium electrolutic capacitor impedance
Greatly, guide pin or lead chaff be easy to happen fusing failure the technical issues of.
To achieve the above object, aluminium electrolutic capacitor proposed by the present invention, the aluminium electrolutic capacitor include head cover, insulation sleeve
Cylinder, upper current collecting plates, core group, next part flow table, shell；The core group includes positive pole aluminium foil, electrolytic paper and cathode aluminium foil；The electrolysis
Folder is located between the positive pole aluminium foil and cathode aluminium foil, and with described in the positive pole aluminium foil and the co-wound formation of cathode aluminium foil
Core group；The shell is arranged in the tubular of one end open, and the next part flow table, core group and upper current collecting plates are embedded successively from the bottom to top
In the shell；The positive pole aluminium foil manifests the electrolytic paper and cathode aluminium foil to form positive contact jaw upwards, described negative
Pole aluminium foil manifests downwards the electrolytic paper and positive pole aluminium foil to form negative contact jaw；The next part flow table, upper current collecting plates correspond to
It is welded to connect with the positive contact jaw, the negative contact jaw；One end of the insulating sleeve is embedded in the shell and is arranged
In the periphery of the upper current collecting plates；The head cover is connect with the upper current collecting plates, and is sealingly disposed in the another of the insulating sleeve
One end.
Preferably, the edge of the head cover is convexly equipped with the coaming plate being arranged in a ring, and the coaming plate to the upper current collecting plates
End abutted with the upper current collecting plates；The insulating sleeve is set in the periphery of the coaming plate.
Preferably, the peripheral surface of the coaming plate is equipped with the groove for circumferentially extending and circularizing setting along the coaming plate；It is described
The corresponding groove convex of the shell side wall opposite with the coaming plate and form annular ridges；The insulating sleeve is fastened on institute
It states between coaming plate and the side wall of the shell, to ensure head cover and upper current collecting plates and the casing insulation.
Preferably, the head cover is being equipped with positive terminal away from the side of the upper current collecting plates.
Preferably, further include pressure valve, the head cover is equipped with the mounting hole for being embedded the pressure valve；The pressure valve
It is embedded in the mounting hole, and passes through screw-thread fit with the mounting hole.
Preferably, the upper current collecting plates are equipped with the first via that several electrolysis liquid streams are led to.
Preferably, the edge of the next part flow table is arranged in a ring to being convexly equipped with away from the direction of the upper current collecting plates
Connecting plate；It is convex that the lower part of the internal face of the shell is equipped with the screens for extending along the shell circumferential direction and circularizing setting
Edge；The peripheral surface of the connecting plate is abutted with the screens flange and is fastened in the screens flange.
Preferably, convex made of the circumferential direction extension along the shell is additionally provided on the internal face of the shell
Edge；The locating flange is between the screens flange and the bottom wall of the shell；The end of the connecting plate with it is described fixed
Position flange abuts.
Preferably, the outside wall surface of the bottom wall of the shell is equipped with negative terminal.
Preferably, the next part flow table is equipped with the second via that several electrolysis liquid streams are led to.
Aluminium electrolutic capacitor provided by the invention is connect by using upper current collecting plates with positive pole aluminium foil laser thermofussion welding, next part
Flow table is connect with cathode aluminium foil laser thermofussion welding, increases drainage component current collecting plates as above and next part flow table and positive and negative electrode aluminium foil
Contact area, correspondingly reduce the contact resistance of drainage component and aluminium foil, and which thereby enhance aluminium electrolutic capacitor current-carrying
Ability improves the resistance to high ripple current ability of aluminium electrolutic capacitor.
Description of the drawings
Fig. 1 is the decomposed structural schematic diagram of one embodiment of aluminium electrolutic capacitor provided by the invention；
Fig. 2 is that the cross-sectional view after aluminium electrolutic capacitor assembling, core group have been removed in Fig. 1；
Partial enlargement structural representation at A during Fig. 3 is 2；
Partial enlargement structural representation at B during Fig. 4 is 2.
Drawing reference numeral explanation：
| 1 | Head cover | 31 | First via | 6 | Shell |
| 11 | Coaming plate | 4 | Core group | 61 | Protrusion |
| 12 | Groove | 41 | Positive pole aluminium foil | 62 | Screens flange |
| 13 | Positive terminal | 42 | Cathode aluminium foil | 63 | Locating flange |
| 15 | Mounting hole | 5 | Next part flow table | 64 | Negative terminal |
| 2 | Insulating sleeve | 51 | Connecting plate | 7 | Pressure valve |
| 3 | Upper current collecting plates | 52 | Second via |
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 implementation mode
Below in conjunction with the accompanying drawings and specific embodiment is described further with regard to technical scheme of the present invention.It should be appreciated that this
The described specific embodiment in place is only used to explain the present invention, is not intended to limit the present invention.
Aluminium electrolutic capacitor proposed by the present invention please refers to Fig. 1 to Fig. 4, in one embodiment, the aluminium electrolutic capacitor packet
Include head cover 1, insulating sleeve 2, upper current collecting plates 3, core group 4, next part flow table 5, shell 6.Core group 4 includes positive pole aluminium foil 41, electrolytic paper
(not shown) and cathode aluminium foil 42.Electrolytic paper is folded between positive pole aluminium foil 41 and cathode aluminium foil 42, and with positive pole aluminium foil 41 and
42 co-wound formation core group 4 of cathode aluminium foil.Shell 6 is arranged in the tubular of one end open, next part flow table 5, core group 4 and upper afflux
Disk 3 is embedded in shell 6 successively from the bottom to top.Positive pole aluminium foil 41 manifests electrolytic paper and cathode aluminium foil 42 and is just connect with being formed upwards
Contravention (does not indicate), i.e., there are the positive pole aluminium foils 41 of blank for the upper end of core group 4；Cathode aluminium foil 52 manifests downwards electrolytic paper and just
Pole aluminium foil 41 bears contact jaw (not indicating) to be formed, i.e., there are the cathode aluminium foils of blank for the one end opposite with next part flow table 5 of core group 4
42.Next part flow table, upper current collecting plates are corresponded to be welded to connect with positive contact jaw, negative contact jaw, specifically, next part flow table 5, upper current collecting plates
3 are welded to connect by laser thermofussion welding correspondence with the clear band of the cathode aluminium foil 42, the clear band of positive pole aluminium foil 41.Insulating sleeve
2 one end is embedded in shell 6 and is set in the periphery of upper current collecting plates 3.Head cover 1 is connect with upper current collecting plates 3, and is sealingly disposed in
The other end of insulating sleeve 2.
In the present embodiment, it is to be understood that upper current collecting plates 3 can be on upper current collecting plates 3 after being welded with positive pole aluminium foil 41
The multiple annulars of formation weldering spot, so ensure that the current-carrying capability of current collecting plates 3.Similarly, next part flow table 5 can also be formed accordingly
Annular welds spot.Pass through multi-point welding between upper current collecting plates 3 and positive pole aluminium foil 41, between next part flow table 5 and cathode aluminium foil 42
Improve the bonding strength between current collecting plates 3 and next part flow table 5 and core group 4.
Aluminium electrolutic capacitor provided by the invention is connect by using upper current collecting plates 3 with 41 laser thermofussion welding of positive pole aluminium foil,
Next part flow table 5 is connect with the 42 laser thermofussion welding of cathode aluminium foil, increase drainage component current collecting plates 3 as above and next part flow table 5 with just,
The contact area of cathode aluminium foil 42, correspondingly reduces the contact resistance of drainage component and aluminium foil, and which thereby enhances aluminium electroloysis
Capacitor current-carrying capability improves the resistance to high ripple current ability of aluminium electrolutic capacitor.
Further, the upward current collecting plates in the edge of head cover 13 are convexly equipped with the coaming plate 11 being arranged in a ring, and the coaming plate 11
End abutted with upper current collecting plates 3.Insulating sleeve 2 is set in the periphery of coaming plate 11, exhausted between head cover 1 and shell 6 to ensure
Edge.In the present embodiment, it is to be understood that head cover 1 is metal material, and preferably, and the material of head cover 1 is aluminium.Specifically,
It is connected by laser thermofussion welding between the end of coaming plate 11 and upper current collecting plates 3, to ensure utmostly to reduce coaming plate 11 and upper collection
Contact impedance between flow table 3 and ensure bonding strength between them.
Further, the peripheral surface of coaming plate 11 is equipped with the groove 12 for circumferentially extending and circularizing setting along coaming plate 11.Shell 6
Side wall respective grooves 12 convex opposite with coaming plate 11 and form annular ridges 61.Insulating sleeve 2 be fastened on coaming plate 11 with it is outer
Between the side wall of shell 6, to ensure that head cover 1 and upper current collecting plates 3 insulate with shell 6.Groove 12 on coaming plate 11 with it is grand on shell 6
It plays portion 61 to coordinate, head cover 1 is contributed to be the bonding strength between the positioning when assembled of shell 6 and guarantee head cover 1 and shell 6.
In the present embodiment, specifically, insulating sleeve 2 is soft material, in an assembling process, is first covered in insulating sleeve 2 outer
On the inner wall of shell 6, then 11 part of coaming plate of head cover 1 is embedded in shell 6, shell 6 corresponding coaming plate 11 groove 12 to
Interior pressing in inside to form protrusion 61.
Further, head cover 1 is being equipped with positive terminal 13 away from the side of upper current collecting plates 3.The outside wall surface of positive terminal 13 is equipped with
External screw thread is concatenated or outside lead is fixed with facilitating with other aluminium electrolutic capacitors.
Further, aluminium electrolutic capacitor further includes pressure valve 7, and head cover 1 is equipped with the mounting hole for being embedded pressure valve 7
15.Pressure valve 7 is embedded in mounting hole 15, and passes through screw-thread fit with mounting hole 15.The aluminium electrolutic capacitor of the present embodiment
In encapsulation process, after electrolyte injects aluminium electrolutic capacitor inside, pressure valve 7, which seals mounting hole 15, prevents electrolyte from revealing.
On commodity inspection line, pressure valve 7 is also to discharge excessive gas inside aluminium electrolutic capacitor, to prevent exploding in use.
Further, upper current collecting plates 3 are equipped with the first via 31 that several electrolysis liquid streams are led to, to ensure alminium electrolytic condenser
The proper flow of device electrolyte inside, and then ensure that electrolyte pressure is balanced.
Further, the edge of next part flow table 5 is to being convexly equipped with the connection being arranged in a ring away from the direction of upper current collecting plates 3
Plate 51.The lower part of the internal face of shell 6 is equipped with the screens flange 62 for extending and circularizing setting along 6 circumferential direction of shell.Connection
The peripheral surface of plate 51 is abutted with screens flange 62 and is fastened in screens flange 62.Specifically, the connecting plate 51 of next part flow table 5
Connected by laser thermofussion welding between outside wall surface and screens flange 62, with ensure utmostly to reduce next part flow table 5 and shell 6 it
Between contact impedance and ensure bonding strength between them.
Further, locating flange 63 made of the circumferential direction extension along shell 6 is additionally provided on the internal face of shell 6.
Locating flange 63 is between screens flange 62 and the bottom wall of shell 6.The end of connecting plate 51 is abutted with locating flange 63, such as
This, can further increase the contact area between next part flow table 5 and shell 6, and reduce the contact impedance between them, this
Outside, when assembling next part flow table 5, locating flange 63 can position next part flow table 5 in the axial direction of shell 6, ensure lower header
The assembly precision of disk 5.
Further, the outside wall surface of the bottom wall of shell 6 is equipped with negative terminal 64, and the outside wall surface of negative terminal 64 is equipped with outer spiral shell
Line is concatenated or outside lead is fixed with facilitating with other aluminium electrolutic capacitors.
Further, next part flow table 5 is equipped with the second via 52 that several electrolysis liquid streams are led to, to ensure alminium electrolytic condenser
The proper flow of device electrolyte inside, and then ensure that electrolyte pressure is balanced.
It should be noted that the technical solution of each embodiment of the present invention can be combined with each other, but must be with this
The technical staff in field can be implemented as basis, when the combination of technical solution occur it is conflicting or when cannot achieve should people recognize
Combination for this technical solution is not present, also not the present invention claims protection domain within.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
Equivalent structure transformation made by description of the invention and accompanying drawing content is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (8)
1. a kind of aluminium electrolutic capacitor, which is characterized in that including head cover, insulating sleeve, upper current collecting plates, core group, next part flow table, outer
Shell；The core group includes positive pole aluminium foil, electrolytic paper and cathode aluminium foil；The electrolytic paper is folded in the positive pole aluminium foil and cathode aluminium
Between foil, and with the positive pole aluminium foil and cathode aluminium foil are co-wound forms the core group；The shell is in the cylinder of one end open
Shape is arranged, and the next part flow table, core group and upper current collecting plates are embedded in the shell successively from the bottom to top；The positive pole aluminium foil to
On manifest the electrolytic paper and cathode aluminium foil to form positive contact jaw, the cathode aluminium foil manifest downwards the electrolytic paper and
Positive pole aluminium foil is to form negative contact jaw；The next part flow table, upper current collecting plates are corresponded to be welded with the positive contact jaw, the negative contact jaw
It connects in succession；One end of the insulating sleeve is embedded in the shell and is set in the periphery of the upper current collecting plates；The head cover
It is connect with the upper current collecting plates, and is sealingly disposed in the other end of the insulating sleeve；
The edge of the next part flow table is convexly equipped with the connecting plate being arranged in a ring to away from the direction of the upper current collecting plates；It is described
The lower part of the internal face of shell is equipped with the screens flange for extending and circularizing setting along the shell circumferential direction；The connecting plate
Peripheral surface abut and be fastened in the screens flange with the screens flange, and the outer wall of the connecting plate of the next part flow table
It is connected by laser thermofussion welding between face and the screens flange；
Locating flange made of the circumferential direction extension along the shell is additionally provided on the internal face of the shell；The convex
Edge is between the screens flange and the bottom wall of the shell；The end of the connecting plate is abutted with the locating flange.
2. aluminium electrolutic capacitor as described in claim 1, which is characterized in that the edge of the head cover is to the upper current collecting plates
It is convexly equipped with the coaming plate being arranged in a ring, and the end of the coaming plate is abutted with the upper current collecting plates；The insulating sleeve is set in institute
State the periphery of coaming plate.
3. aluminium electrolutic capacitor as claimed in claim 2, which is characterized in that the peripheral surface of the coaming plate is equipped with along the coaming plate
Circumferentially extend and circularize the groove of setting；The corresponding groove convex of the shell side wall opposite with the coaming plate and formed
Annular ridges；The insulating sleeve is fastened between the coaming plate and the side wall of the shell, to ensure head cover and upper afflux
Disk and the casing insulation.
4. aluminium electrolutic capacitor as claimed in claim 3, which is characterized in that the head cover is away from the one of the upper current collecting plates
Side is equipped with positive terminal.
5. aluminium electrolutic capacitor as claimed in claim 3, which is characterized in that further include pressure valve, the head cover is equipped with and is used for
It is embedded the mounting hole of the pressure valve；The pressure valve is embedded in the mounting hole, and is matched by screw thread with the mounting hole
It closes.
6. aluminium electrolutic capacitor as described in any one in claim 1-5, which is characterized in that the upper current collecting plates are equipped with several
The first logical via of electrolysis liquid stream.
7. aluminium electrolutic capacitor as described in claim 1, which is characterized in that the outside wall surface of the bottom wall of the shell is equipped with negative
Pole.
8. such as claim 7 any one of them aluminium electrolutic capacitor, which is characterized in that the next part flow table is equipped with several confessions
Second via of electrolyte circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368376.2A CN105006369B (en) | 2015-06-29 | 2015-06-29 | Aluminium electrolutic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368376.2A CN105006369B (en) | 2015-06-29 | 2015-06-29 | Aluminium electrolutic capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN105006369A CN105006369A (en) | 2015-10-28 |
| CN105006369B true CN105006369B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510368376.2A Active CN105006369B (en) | 2015-06-29 | 2015-06-29 | Aluminium electrolutic capacitor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016105696A1 (en) * | 2016-03-29 | 2017-10-19 | Epcos Ag | electrolytic capacitor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414337A2 (en) * | 1989-08-23 | 1991-02-27 | Isuzu Motors Limited | Electric double layer capacitor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06132163A (en) * | 1992-10-20 | 1994-05-13 | Matsushita Electric Ind Co Ltd | Electric double-layer capacitor and its manufacture |
| CN202887989U (en) * | 2012-09-27 | 2013-04-17 | 深圳市今朝时代新能源技术有限公司 | Super capacitor adopting welding structure |
| CN103199212B (en) * | 2013-03-28 | 2016-04-20 | 凯迈嘉华（洛阳）新能源有限公司 | Electrode lead-out structure |
| CN103178231B (en) * | 2013-03-28 | 2017-04-12 | 凯迈嘉华（洛阳）新能源有限公司 | Assembly process for electrode lead-out structure |
| CN103219489B (en) * | 2013-03-28 | 2015-05-20 | 凯迈嘉华（洛阳）新能源有限公司 | Electric energy storing device |
| CN203386613U (en) * | 2013-08-14 | 2014-01-08 | 上海赛特康新能源技术有限公司 | Cylindrical super capacitor |
| CN103700511B (en) * | 2014-01-10 | 2017-01-11 | 柯贝尔电能质量技术（上海）有限公司 | Energy storage device and assembling method thereof |
| CN204927058U (en) * | 2015-06-29 | 2015-12-30 | 深圳市智胜新电子技术有限公司 | Aluminum electrolytic condenser |
-
2015
- 2015-06-29 CN CN201510368376.2A patent/CN105006369B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414337A2 (en) * | 1989-08-23 | 1991-02-27 | Isuzu Motors Limited | Electric double layer capacitor |
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| CN105006369A (en) | 2015-10-28 |
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