CN210167265U - High-voltage 400V lightning-strike-resistant solid-liquid mixed conductive high-molecular polymer capacitor - Google Patents
High-voltage 400V lightning-strike-resistant solid-liquid mixed conductive high-molecular polymer capacitor Download PDFInfo
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- CN210167265U CN210167265U CN201921379935.XU CN201921379935U CN210167265U CN 210167265 U CN210167265 U CN 210167265U CN 201921379935 U CN201921379935 U CN 201921379935U CN 210167265 U CN210167265 U CN 210167265U
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Abstract
The utility model discloses a high-voltage 400V lightning-resistant solid-liquid mixed conductive polymer capacitor, which comprises a shell, an anode foil, a cathode foil and electrolytic paper; the anode foil is nailed with a positive tab, and the cathode foil is nailed with a negative tab; the electrolytic paper is arranged between the anode foil and the cathode foil and is wound into a core package, and the anode foil and the cathode foil are covered with conductive high polymer film layers; riveting flowers with a plurality of lamellas are formed at the nailing positions of the lugs, the width W of each riveting flower is 0.4-1.0 mm, and the height H of each riveting flower is 0.4-0.8 mm; and the electrolytic paper on one side of the anode foil is rewound and covers the riveting part of the anode tab. The utility model discloses, through the adjustment to petal size, the rewinding paper when transferring length simultaneously and coiling makes it to wrap the nailing position, has not only effectively reduced the explosion rate of product, has also improved the resistant thunderbolt of product simultaneously and has resisted the resistant charge and discharge ability.
Description
Technical Field
The utility model relates to an electrochemistry technical field, in particular to resistant lightning stroke solid-liquid of high pressure 400V mixes electrically conductive high polymer capacitor.
Background
The solid-liquid mixed capacitor is mainly used for automobile electronic products, and is also applied to high-end fields such as LEDs, computer mainboards, digital televisions, servers, communication equipment, high-grade chargers and the like.
The current mainstream manufacturing process of the solid-liquid mixed capacitor is a technical route that a conductive high molecular polymer is firstly formed, then special electrolyte is impregnated, and finally a solid-liquid mixed capacitor product is manufactured. The existing solid-liquid mixed capacitor structure is shown in figure 1, and the capacitor has the defects that the explosion rate of the process is higher when 400V high-pressure products are produced under the process, the yield is too low during mass production, the cost is too high, and the market competitiveness is small. Moreover, products with high voltage of 400V produced under the process condition cannot pass lightning-resistant charging and discharging test verification, so that the application field of the products is limited to a certain extent.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a high pressure 400V resistant lightning stroke solid-liquid mixes electrically conductive high polymer condenser can improve the resistant lightning stroke of the processing procedure explosion rate of solid-liquid hybrid capacitor and product and resistant charge and discharge ability under the condition that does not influence solid-liquid hybrid capacitor main performance.
The utility model provides a high-voltage 400V lightning-strike-resistant solid-liquid mixed conductive polymer capacitor, which comprises a shell, an anode foil, a cathode foil and electrolytic paper; the anode foil is nailed with a positive tab, and the cathode foil is nailed with a negative tab; the electrolytic paper is arranged between the anode foil and the cathode foil and is wound into a core package, and the anode foil and the cathode foil are covered with conductive high polymer film layers;
riveting flowers with a plurality of lamellas are formed at the nailing positions of the lugs, the width W of each riveting flower is 0.4-1.0 mm, and the height H of each riveting flower is 0.4-0.8 mm; and the electrolytic paper on one side of the anode foil is rewound and covers the riveting part of the anode tab.
Further, the width W of the riveting flower is 0.7 +/-0.1 mm, and the height H of the riveting flower is 0.6 +/-0.1 mm.
Further, the electrolytic paper is long fiber paper.
Further, the anode foil and the cathode foil are made of valve metal and have an oxide film on the surface.
Further, the positive electrode tab and the negative electrode tab are high-voltage formed tabs with the voltage of more than 600V, and an oxide film is formed on the surfaces of the tabs.
Further, the riveting flower formed at the nailing position of the tab is three or four.
Further, the tab is of a guide pin structure.
Further, the tab is of a foil strip guide structure.
Further, the anode foil is thicker than the cathode foil.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a resistant thunderbolt solid-liquid mixture conductive polymer condenser of high pressure 400V, through the adjustment to petal size, the paper of rewinding when transferring length simultaneously and coiling makes it wrap the nailing position, has not only effectively reduced the explosion rate of product, has also improved the resistant thunderbolt of product simultaneously and has resisted the charge and discharge ability:
through the adjustment of the size of the riveting flower, the guide pin is better contacted with the anode foil and the cathode foil, the conductivity is better, the instantaneous conductivity is enhanced, and the failure in a lightning-resistant charge-discharge-resistant test can be effectively avoided;
after the first electrolytic paper is lengthened and rewound to wrap the contact part of the anode foil and the positive tab, two layers of electrolytic paper are arranged at the contact part of the anode foil and the positive tab, so that the risk of short circuit explosion of products caused by burrs and aluminum scraps generated by riveting can be greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a capacitor according to the prior art;
fig. 2 is a schematic structural diagram of a solid-liquid mixed conductive polymer capacitor according to an embodiment of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
Reference numerals:
11-anode foil, 12-cathode foil, 21-first electrolytic paper, 22-second electrolytic paper, 31-positive tab, 32-negative tab and 40-riveting part.
Detailed Description
The structure and action principle of the winding core and the super capacitor of the present invention are further explained with reference to the accompanying drawings and the embodiments below:
example (b):
as shown in fig. 2 and 3, the present invention is an embodiment.
The embodiment provides a high-voltage 400V lightning-strike-resistant solid-liquid mixed conductive high polymer capacitor, which comprises a shell, an anode foil 11, a cathode foil 12 and electrolytic paper.
The electrolytic paper is interposed between the anode foil 11 and the cathode foil 12, and wound into a core package together with the anode foil 11 and the cathode foil 12. The anode foil 11 and the cathode foil 12 are made of a valve metal, which may be aluminum, tantalum, niobium, or titanium, and have an oxide film on the surface. Anode foil 11 and cathode foil 12 are preferably aluminum.
The anode foil 11 and the cathode foil 12 of the capacitor are covered with a conductive high molecular polymer film layer.
The capacitor further comprises a tab: positive tab 31 and negative tab 32. In this embodiment, the tab is of a guide pin structure, and more preferably, the guide pin is an aluminum guide pin. The nailing machine adopts a nail needle, and the positive tab 31 is nailed on the anode foil 11, and the negative tab 32 is nailed on the cathode foil 12. A rivet 40 is formed at the clinched position of the tab, and the rivet 40 includes a rivet flower having a plurality of petals. The riveting flower formed at the nailing position of the tab is three or four.
After cutting the anode foil 11, the cathode foil 12 and the electrolytic paper, when riveting the lug and the aluminum foil, debugging a machine table, and adjusting the width W of the riveting flower to be 0.4-1.0 mm and the height H of the riveting flower to be 0.4-0.8 mm on the premise of ensuring the flattening thickness and the qualified contact resistance of the guide pin. Through the adjustment of riveting flower size, make the guide pin get better with the contact of positive pole paper tinsel 11 and negative pole paper tinsel 12, the conductivity is better, and the conducting power reinforcing in the twinkling of an eye can effectually avoid losing efficacy when resistant thunderbolt is able to bear or endure charge-discharge test.
The electrolytic paper includes, as shown in fig. 2, a first electrolytic paper 21 on the side close to the anode foil 11, and a second electrolytic paper 22 on the side close to the cathode foil 12.
First electrolytic paper 21 on the side of anode foil 11 is rewound so that the rewound electrolytic paper covers the riveted portion of positive tab 31 on anode foil 11 in length. In the capacitor of this embodiment, the thickness of the anode foil 11 is much thicker than that of the cathode foil 12 (90-100 um), so the probability of generating burrs and aluminum shavings at the anode foil 11 is far greater than that of the cathode foil 12 during the nail-rolling process. After the first electrolytic paper 21 on one side of the anode foil 11 is lengthened and rewound to wrap the contact part of the anode foil 11 and the positive tab 31, two layers of electrolytic paper are arranged at the contact part of the anode foil 11 and the positive tab 31, so that the risk of short circuit and explosion of products caused by burrs and aluminum scraps generated by riveting can be greatly reduced.
More preferably, the width W of the riveting flower is 0.7 +/-0.1 mm, and the height H of the riveting flower is 0.6 +/-0.1 mm.
The electrolytic paper in this embodiment is preferably long fiber paper. Long fiber paper: the paper is one of the electrolytic paper, has high cellulose content and longer fiber, and is called long fiber paper; it functions as common electrolytic paper: anode foil 11 and cathode foil 12 can be isolated from direct contact and can also absorb negative electrode materials. However, compared with the common electrolytic paper with the same density and thickness grade, the long fiber paper has higher voltage resistance and very low ESR value, and can improve the process explosion rate of the solid-liquid mixed capacitor and the lightning stroke resistance and charge and discharge resistance of the product.
In the present invention, the positive electrode tab 31 and the negative electrode tab 32 are preferably formed as tabs at a high voltage of 600V or more, and oxide films are formed on the surfaces of the tabs. In this embodiment, the guide pin used as the tab is formed into a layer of alumina oxide film on the surface of the guide pin. The formation guide needle with different formation voltages can be obtained through different formation processes, such as different formation liquids and formation voltages.
Compared with the common guide pin, the formation voltage of the formation guide pin is higher, and the oxidation film layer is thicker. The formation guide needle passing through the 600V or above is called as a high-pressure formation guide needle. The high-voltage formation guide pin is used for improving the lightning stroke resistance and charge-discharge resistance of the capacitor.
After the core package is wound, the method further comprises the following steps:
(1) adhering the core bag into a forming liquid, and then carrying out repair oxidation film treatment;
(2) heating and drying the core bag;
(3) impregnating the obtained core package with an impregnation solution;
(4) and after the impregnation treatment of the impregnation liquid is finished, drying, filling the obtained core package into a shell, sealing the shell by using a rubber plug, and performing aging treatment to finally prepare a finished product.
The structure of the tab may be a foil strip structure in addition to the above-mentioned guide pin structure. The guide pin and the guide foil strip are both in the prior art and are not described in detail herein.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a resistant thunderbolt solid-liquid mixture conductive polymer condenser of high pressure 400V, through the adjustment to petal size, the paper of rewinding when transferring length simultaneously and coiling makes it wrap the nailing position, has not only effectively reduced the explosion rate of product, has also improved the resistant thunderbolt of product simultaneously and has resisted the charge and discharge ability:
through the adjustment of the size of the riveting flower, the guide pin is better contacted with the anode foil and the cathode foil, the conductivity is better, the instantaneous conductivity is enhanced, and the failure in a lightning-resistant charge-discharge-resistant test can be effectively avoided;
after the first electrolytic paper is lengthened and rewound to wrap the contact part of the anode foil and the positive tab, two layers of electrolytic paper are arranged at the contact part of the anode foil and the positive tab, so that the risk of short circuit explosion of products caused by burrs and aluminum scraps generated by riveting can be greatly reduced.
It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present invention can still be modified or replaced with equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A high-voltage 400V lightning-strike-resistant solid-liquid mixed conductive high-molecular polymer capacitor comprises a shell, an anode foil, a cathode foil and electrolytic paper; the anode foil is nailed with a positive tab, and the cathode foil is nailed with a negative tab; the electrolytic paper is arranged between an anode foil and a cathode foil and is wound into a core package, and conductive high polymer film layers are covered on the anode foil and the cathode foil;
riveting flowers with a plurality of lamellas are formed at the nailing positions of the lugs, the width W of each riveting flower is 0.4-1.0 mm, and the height H of each riveting flower is 0.4-0.8 mm; and the electrolytic paper on one side of the anode foil is rewound and covers the riveting part of the anode tab.
2. The capacitor of claim 1 wherein the width W of the rivet flower is 0.7 ± 0.1mm and the height H of the rivet flower is 0.6 ± 0.1 mm.
3. The capacitor of claim 1, wherein said electrolytic paper is long fiber paper.
4. The capacitor of claim 1 wherein said anode foil and said cathode foil are made of valve metal and have an oxide film on the surface.
5. The capacitor according to claim 1, wherein the positive electrode tab and the negative electrode tab are high-voltage tab tabs having a voltage of 600V or more, and an oxide film is formed on the surface of the tab.
6. The capacitor of claim 5 wherein the tabs form three or four lobes at the stapled location.
7. The capacitor of claim 1 wherein said tabs are of a pin configuration.
8. The capacitor of claim 1 wherein said tabs are in the form of a conductive foil strip structure.
9. The capacitor of claim 1 wherein said anode foil is thicker than said cathode foil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379935.XU CN210167265U (en) | 2019-08-23 | 2019-08-23 | High-voltage 400V lightning-strike-resistant solid-liquid mixed conductive high-molecular polymer capacitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921379935.XU CN210167265U (en) | 2019-08-23 | 2019-08-23 | High-voltage 400V lightning-strike-resistant solid-liquid mixed conductive high-molecular polymer capacitor |
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| CN210167265U true CN210167265U (en) | 2020-03-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403177A (en) * | 2020-03-26 | 2020-07-10 | 湖州一力电子有限公司 | Manufacturing method of ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
| CN113539693A (en) * | 2020-10-13 | 2021-10-22 | 南通一品机械电子有限公司 | Method for reducing loss of high-voltage aluminum electrolytic capacitor |
-
2019
- 2019-08-23 CN CN201921379935.XU patent/CN210167265U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403177A (en) * | 2020-03-26 | 2020-07-10 | 湖州一力电子有限公司 | Manufacturing method of ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
| CN111403177B (en) * | 2020-03-26 | 2021-08-06 | 湖州新江浩电子有限公司 | Manufacturing method of ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
| CN113539693A (en) * | 2020-10-13 | 2021-10-22 | 南通一品机械电子有限公司 | Method for reducing loss of high-voltage aluminum electrolytic capacitor |
| CN113539693B (en) * | 2020-10-13 | 2022-11-08 | 南通一品机械电子有限公司 | Method for reducing loss of high-voltage aluminum electrolytic capacitor |
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