CN209607599U - A kind of highly reliable energy-storage capacitor of Low ESR - Google Patents
A kind of highly reliable energy-storage capacitor of Low ESR Download PDFInfo
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- CN209607599U CN209607599U CN201920381875.9U CN201920381875U CN209607599U CN 209607599 U CN209607599 U CN 209607599U CN 201920381875 U CN201920381875 U CN 201920381875U CN 209607599 U CN209607599 U CN 209607599U
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Abstract
The utility model provides a kind of highly reliable energy-storage capacitor of Low ESR, including ailhead, shell and encapsulated cover board, ailhead is on encapsulated cover board, the both ends of ailhead are equipped with positive lead and positive outer lead, outer casing inner wall, outer wall is respectively equipped with cathode lead, cathode outer lead, capacitor core is accommodated within shell, encapsulated cover board is at the port of shell aperture end, capacitor core is by cathode foil, electrolytic paper, anode foil is stacked together in order to wind again later, positive lead, cathode lead respectively with cathode foil, the corresponding riveting of anode foil, riveting point quantity is no less than 2 integer.Using the technical solution of the utility model, by the riveting point quantity for increasing positive lead, cathode lead, increase the contact area that positive lead connect junction with cathode foil, cathode lead with anode foil, it ensure that capacitor internal is electrically reliably connected, the internal resistance for reducing capacitor entirety optimizes the electrical parameter of capacitor.
Description
Technical field
The utility model relates to capacitor technology fields, and in particular to a kind of highly reliable energy-storage capacitor of Low ESR.
Background technique
Capacitor is the common electronic component in various electronic equipments and device, and conventional energy-storage AI electrolytic capacitor is main
By shell, it is sealed in the shell by cathode foil, anode foil and the electrolytic paper winding for keeping apart cathode foil and anode foil
It forms, capacitor anode lead is generally directly riveted in cathode foil, and capacitor anode lead is then directly riveted on negative accordingly
On the foil of pole, for this riveting mode due to lead and cathode foil, only one riveting point of the junction of anode foil, connection is reliable
Property is poor, when this kind of capacitor application is in electronic equipment or device, is easy to be vibrated and loosen lead, causes electronics
Occur disconnected record within system, affect the normal use of electronic equipment or device, and riveting point contact resistance is larger, increases
The internal resistance of the later capacitor of molding, influences the electrical parameter performance of capacitor.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of highly reliable energy-storage capacitor of Low ESR, this is practical
It is novel to be achieved by the following technical programs.
The highly reliable energy-storage capacitor of a kind of Low ESR provided by the utility model, including ailhead, shell open at one end and
The encapsulated cover board of disc, for the ailhead on the encapsulated cover board, one end of the ailhead is equipped with positive lead, institute
The other end for stating ailhead is equipped with positive outer lead, is equipped with cathode lead on the outer casing inner wall, on the outer shell outer wall
Equipped with cathode outer lead, capacitor core is accommodated within the shell, the encapsulated cover board is flush-mounted in shell aperture end end
Mouthful place, the capacitor core by cathode foil, electrolytic paper, anode foil in order it is stacked together later wind again, it is described just
The riveting corresponding with the cathode foil, anode foil respectively before the capacitor core winding shaping of pole lead, cathode lead
Together, the positive lead and the cathode foil riveting point, the cathode lead and anode foil riveting point quantity
It is the integer not less than 2.
The cathode lead is welded to connect on the outer casing inner wall using ultrasonic spot welding technique.
Connection welding quantity is the integer not less than 2 between the cathode lead and the outer casing inner wall.
The outer shell outer wall also forms waist peak A by applying active force along radial direction from outside to inside, and waist peak A makes institute
It states encapsulated cover board outer peripheral surface and the outer casing inner wall is born against together.
The waist peak A is the annular groove continuously arranged along the outer shell outer wall.
The outer shell outer wall also forms waist peak B by applying active force along radial direction from outside to inside, and waist peak B makes institute
Capacitor core periphery is stated to exempt to bear against together with the outer casing inner wall.
The waist peak B is the annular groove continuously arranged along the outer shell outer wall.
The Low ESR high reliability energy-storage capacitor further includes insulating sleeve, the shell, encapsulated cover board, ailhead and electricity
Hold fuse to be completely wrapped within insulating sleeve, the anode outer lead, cathode outer lead are each passed through insulating sleeve wall surface
Extend outwardly.
When the cathode foil, electrolytic paper, anode foil are stacked together in order, electrolytic paper left and right ends edge phase
It is 0.5~1mm for the distance between the cathode foil or anode foil left and right ends edge.
Shell aperture end port edges also form bound edge by fold inward, and bound edge is covered on the encapsulated cover board side
Edge.
The utility model has the beneficial effects that: parallel by distinguishing the positive lead, the cathode lead
It is riveted in the surface of cathode foil, anode foil, and riveting point quantity is made to be greater than 2, increase the positive lead and institute
State cathode foil, the cathode lead connect the contact area of junction with the anode foil, when capacitor in use
When being vibrated, the anode lead, the cathode lead are not easy to loosen, to ensure that capacitor and other electronics
Reliable electric connection between element, further, since multiple riveting solder joints are respectively set on cathode foil or anode foil, although
Contact resistance at one riveting solder joint is larger, but when multiple rivetings welding is juxtaposed on cathode foil or anode foil,
These riveting solder joints can be regarded as to electrical connection form in parallel, multiple rivetings weld the total contact resistance formed instead more
It is small, to reduce the influence of the capacitor internal resistance numerical value to manufacture forming, the electrical parameter of capacitor is optimized, this is practical new
Type is also into a single integrated structure by making positive outer lead with encapsulated cover board, by cathode outer lead and the integral knot of shell production
Structure, encapsulated cover board is again nested within shell, and by the way that waist peak A, waist peak B are arranged on the shell, waist peak A, waist peak B are to encapsulated
Cover board, capacitor core generate radial compression effect, effectively prevent wherein being electrically connected position and loosen, and further improve electricity
The reliability of container.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is structural schematic diagram when cathode foil, electrolytic paper, anode foil are stacked together.
In figure: 1- capacitor core, 2- shell, the encapsulated cover board of 3-, 4- insulating sleeve, 6- ailhead, 7- aluminium washer, 11- anode
Foil, 12- electrolytic paper, 13- anode foil, 21- cathode lead, 22- cathode outer lead, 23- waist peak A, 24- waist peak B, 25- bound edge,
61- anode lead, 62- anode outer lead.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figure 1 and Figure 2, the utility model provides a kind of Low ESR high reliability energy-storage capacitor, including ailhead 6,
Shell 2 open at one end and the encapsulated cover board 3 of disc, for ailhead 6 on encapsulated cover board 3, one end of ailhead 6 is equipped with anode
Lead 61, the other end of ailhead 6 are equipped with positive outer lead 62, are equipped with cathode lead 21 on 2 inner wall of shell, outside shell 2
It is equipped with cathode outer lead 22 on wall, capacitor core 1 is accommodated within shell 2, encapsulated cover board 3 is flush-mounted in 2 open end end of shell
At mouthful, capacitor core 1 is wound again later by cathode foil 11, electrolytic paper 12, anode foil 13 are stacked together in order, anode
Lead 61, cathode lead 21 before 1 winding shaping of capacitor core respectively with cathode foil 11, anode foil 13 is corresponding is riveted on
Together, positive lead 61 and 11 riveting point of cathode foil, cathode lead 21 and 13 riveting point quantity of anode foil are not less than 2
Integer.
By the way that positive lead 61, cathode lead 21 are respectively parallel to cathode foil, the surface of anode foil rivets,
And so that riveting point quantity is greater than 2, increase positive lead 61 and connect with cathode foil 11, cathode lead 21 with anode foil 13
The contact area of junction, when capacitor is vibrated in use, positive lead 61, cathode lead 21 are not
It easily loosens, to ensure that the reliable electric connection between capacitor and other electronic components, further, since in cathode foil or bearing
Multiple riveting solder joints are respectively set on the foil of pole, although the contact resistance at a riveting solder joint is larger, when multiple rivetings are welded
It connects when being juxtaposed on cathode foil or anode foil, these riveting solder joints can be regarded as electrical connection form in parallel, it is multiple
Total contact resistance that riveting welding is formed is smaller instead, to reduce the shadow of the capacitor internal resistance numerical value to manufacture forming
It rings, optimizes the electrical parameter of capacitor, the utility model is also by integrally tying positive outer lead and the production of encapsulated cover board
Structure, cathode outer lead and shell production is into a single integrated structure, and encapsulated cover board is again nested within shell, and by the shell
Waist peak A, waist peak B are set, and waist peak A, waist peak B generate radial compression effect to encapsulated cover board, capacitor core, effectively prevent wherein electric
Gas connecting portion loosens, and further improves the reliability of capacitor.
Further, cathode lead 21 is welded to connect on 2 inner wall of shell using ultrasonic spot welding technique.It is negative
Connection welding quantity is the integer not less than 2 between 2 inner wall of pole lead 21 and shell.Using this technical solution, electricity can be made
The structure fabrication of container obtain it is more compact, meanwhile, further promoted capacitor electrical reliability.
Further, 2 outer wall of shell also forms waist peak A23 by applying active force along radial direction from outside to inside,
Waist peak A23 bears against encapsulated 3 outer peripheral surface of cover board and 2 inner wall of shell together.Preferred waist peak A23 is continuous along 2 outer wall of shell
The annular groove of arrangement.In addition, 2 outer wall of shell also forms waist peak by applying active force along radial direction from outside to inside
B24, waist peak B24 make 1 periphery of capacitor core exempt to bear against together with 2 inner wall of shell.Preferred waist peak B24 is along 2 outer wall of shell
The annular groove continuously arranged.Waist peak A23, waist peak B24 squeezing action under, keep capacitor core therein, encapsulated cover board equal
It can reliably be nested within shell, further improve the ability that capacitor resists vibration.
In addition, Low ESR high reliability energy-storage capacitor further includes insulating sleeve 4, shell 2, encapsulated cover board 3,6 and of ailhead
Capacitor core 1 is completely wrapped within insulating sleeve 4, and positive outer lead 62, cathode outer lead 22 are each passed through insulating sleeve 4
Wall surface extends outwardly.
Further, when cathode foil 11, electrolytic paper 12, anode foil 13 are stacked together in order, electrolytic paper 12 or so
Both ends edge is 0.5~1mm relative to the distance between 13 left and right ends edge of cathode foil 11 or anode foil.By making electrolytic paper
12 both ends length are slightly long, ensure that and are reliably isolated between cathode foil 11 and anode foil 13, the electrical of capacitor has been effectively ensured
Performance.
In addition, 2 open end port edges of shell also form bound edge 25 by fold inward, bound edge 25 is covered on encapsulated cover board
3 edges.It is preferred that the material of ailhead 6 is aluminium.When positive lead 61 is riveted together with ailhead 6, can ailhead 6 outer peripheral surface it
Positive lead 61 is penetrated and then is riveted on positive lead 61 with ailhead 6 by aluminium washer 7 by upper setting connecting hole
When together, using this connection type, the contact area of positive lead 61 and ailhead 6 is increased, capacitor is further improved
The antivibration kinetic force of device, ensure that the reliability of capacitor.
Claims (10)
1. a kind of highly reliable energy-storage capacitor of Low ESR, it is characterised in that: including ailhead (6), shell open at one end (2) and circle
The encapsulated cover board of dish type (3), on the encapsulated cover board (3), one end of the ailhead (6) is equipped with just the ailhead (6)
Pole lead (61), the other end of the ailhead (6) are equipped with positive outer lead (62), are equipped on shell (2) inner wall negative
Pole lead (21) is equipped with cathode outer lead (22) on shell (2) outer wall, accommodates capacitor within the shell (2)
Fuse (1), the encapsulated cover board (3) is at the shell (2) open end port, and the capacitor core (1) is by cathode foil
(11), electrolytic paper (12), anode foil (13) are stacked together in order winds again later, the anode lead (61),
Cathode lead (21) is right with the cathode foil (11), anode foil (13) respectively before the capacitor core (1) winding shaping
It should be riveted together, the anode lead (61) and the cathode foil (11) riveting point, the cathode lead (21) and institute
Stating anode foil (13) riveting point quantity is the integer not less than 2.
2. the highly reliable energy-storage capacitor of Low ESR as described in claim 1, it is characterised in that: the cathode lead (21) is
It is welded to connect on the shell (2) inner wall using ultrasonic spot welding technique.
3. the highly reliable energy-storage capacitor of Low ESR as claimed in claim 2, it is characterised in that: the cathode lead (21) with
Connection welding quantity is the integer not less than 2 between shell (2) inner wall.
4. the highly reliable energy-storage capacitor of Low ESR as described in claim 1, it is characterised in that: shell (2) outer wall is also logical
It crosses and applies active force formation waist peak A (23) along radial direction from outside to inside, waist peak A (23) makes the encapsulated cover board (3) outside
Circumferential surface and the shell (2) inner wall are born against together.
5. the highly reliable energy-storage capacitor of Low ESR as claimed in claim 4, it is characterised in that: the waist peak A (23) be along
The annular groove that shell (2) outer wall is continuously arranged.
6. the highly reliable energy-storage capacitor of Low ESR as described in claim 1, it is characterised in that: shell (2) outer wall is also logical
It crosses and applies active force formation waist peak B (24) along radial direction from outside to inside, waist peak B (24) makes the capacitor core (1) outside
Exempt from week to bear against together with the shell (2) inner wall.
7. the highly reliable energy-storage capacitor of Low ESR as claimed in claim 6, it is characterised in that: the waist peak B (24) be along
The annular groove that shell (2) outer wall is continuously arranged.
8. the highly reliable energy-storage capacitor of Low ESR as described in claim 1, it is characterised in that: the highly reliable energy storage of Low ESR
Capacitor further includes insulating sleeve (4), and the shell (2), encapsulated cover board (3), ailhead (6) and capacitor core (1) are wrapped completely
It is wrapped within insulating sleeve (4), the anode outer lead (62), cathode outer lead (22) are each passed through insulating sleeve (4) wall surface
Extend outwardly.
9. the highly reliable energy-storage capacitor of Low ESR as described in claim 1, it is characterised in that: when the cathode foil (11), electricity
Solve paper (12), anode foil (13) it is stacked together in order when, electrolytic paper (12) the left and right ends edge relative to it is described just
The distance between pole foil (11) or anode foil (13) left and right ends edge are 0.5~1mm.
10. the highly reliable energy-storage capacitor of Low ESR as described in claim 1, it is characterised in that: shell (2) the open end end
Mouth edge also forms bound edge (25) by fold inward, and bound edge (25) is covered on encapsulated cover board (3) edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920381875.9U CN209607599U (en) | 2019-03-25 | 2019-03-25 | A kind of highly reliable energy-storage capacitor of Low ESR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920381875.9U CN209607599U (en) | 2019-03-25 | 2019-03-25 | A kind of highly reliable energy-storage capacitor of Low ESR |
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| Publication Number | Publication Date |
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| CN209607599U true CN209607599U (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920381875.9U Active CN209607599U (en) | 2019-03-25 | 2019-03-25 | A kind of highly reliable energy-storage capacitor of Low ESR |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584253A (en) * | 2020-05-08 | 2020-08-25 | 肇庆绿宝石电子科技股份有限公司 | Super capacitor and glue filling method and application thereof |
-
2019
- 2019-03-25 CN CN201920381875.9U patent/CN209607599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584253A (en) * | 2020-05-08 | 2020-08-25 | 肇庆绿宝石电子科技股份有限公司 | Super capacitor and glue filling method and application thereof |
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