CN112017866A - High-frequency low-resistance electrolytic capacitor and processing method thereof - Google Patents
High-frequency low-resistance electrolytic capacitor and processing method thereof Download PDFInfo
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- 239000003990 capacitor Substances 0.000 title claims abstract description 133
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 21
- 239000004815 dispersion polymer Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims description 47
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 230000015572 biosynthetic process Effects 0.000 claims description 24
- 238000004806 packaging method and process Methods 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 8
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001741 Ammonium adipate Substances 0.000 claims description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 235000019293 ammonium adipate Nutrition 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004327 boric acid Substances 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 230000008439 repair process Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000011888 foil Substances 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G9/02—Diaphragms; Separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to the field of electrolytic capacitors, in particular to a high-frequency low-resistance electrolytic capacitor and a processing method thereof. The invention has the advantages of protecting the conductive polymer film formed by the conductive polymer dispersion liquid in the capacitor core, improving the stability and the conductivity of the conductive polymer film, improving the electrical property and the service life of an electrolytic capacitor product, and improving the use safety of the electrolytic capacitor.
Description
Technical Field
The invention relates to the field of electrolytic capacitors, in particular to a high-frequency low-resistance electrolytic capacitor and a processing method thereof.
Background
The electrolytic capacitor is one kind of capacitor, the metal foil is the positive electrode (aluminum or tantalum), the oxide film (aluminum oxide or tantalum pentoxide) close to the metal close to the positive electrode is the dielectric, the cathode is composed of conductive material, electrolyte (the electrolyte can be liquid or solid) and other materials, and the electrolytic capacitor is named because the electrolyte is the main part of the cathode. Meanwhile, the positive and negative of the electrolytic capacitor can not be connected in a wrong way. Aluminum electrolytic capacitors can be classified into four categories: a lead type aluminum electrolytic capacitor; a horn-shaped aluminum electrolytic capacitor; a bolt-type aluminum electrolytic capacitor; a solid aluminum electrolytic capacitor.
Chinese patent No. CN108538588A provides a method for processing an aluminum electrolytic capacitor, which comprises designing dimensions, cutting, connecting lead terminals, winding an element, removing dust from the element, impregnating the element, assembling and sealing, cleaning and drying, sleeving a rubber tube, aging, and the like. The processing method of the invention is additionally provided with the dust removal device, so that the aluminum slag and the foil ash attached to the aluminum foil can be removed, the yield of the production of electrolytic capacitor products is improved, and the generation of the aluminum slag and the foil ash is prevented. Meanwhile, in the processing method, the anode aluminum foil, the cathode aluminum foil and the lead terminal are connected in a riveting and then welded, so that the heat dissipation of the electrolytic capacitor in the use process can be reduced, and the resistance value is reduced. In addition, the electrolyte adopted in the processing method is anhydrous electrolyte, so that the aluminum electrolytic capacitor can be suitable for high-temperature environment.
In the existing high-frequency low-resistance electrolytic capacitor, the conductive polymer dispersion liquid cannot form a conductive polymer film in the capacitor core relatively well, so that the stability and the conductivity of the electrolytic capacitor are relatively poor, and the use safety of the electrolytic capacitor is relatively low.
Disclosure of Invention
The invention aims to provide a high-frequency low-resistance electrolytic capacitor and a processing method thereof, and aims to solve the problems that the stability and the conductivity of the electrolytic capacitor are relatively poor and the use safety of the electrolytic capacitor is relatively low due to the fact that the conductive polymer dispersion liquid provided in the background technology cannot relatively well form a conductive polymer film in a capacitor core.
The technical scheme of the invention is as follows: the utility model provides a high frequency low resistance electrolytic capacitor, includes the electric capacity body, the inside of electric capacity body is provided with the shell, the top of shell is provided with positive post, the top of shell is provided with the negative pole post, the inside of shell is provided with the electric capacity core, the electric capacity core includes positive membrane, diaphragm and negative pole membrane, and the diaphragm is located between positive membrane and the negative pole membrane.
Furthermore, two inserting holes are formed in the top of the shell, the positive pole column and the negative pole column are respectively inserted into the two inserting holes, insulating rings are arranged in the inserting holes, and the two insulating rings are respectively sleeved on the positive pole column and the negative pole column.
Further, the shell of shell is provided with the packing skin, the outside of capacitor body is provided with the arc wall.
Further, the shell is including the aluminum hull, one side of aluminum hull is provided with the enhancement layer, one side of enhancement layer is provided with the explosion-proof layer, the aluminum hull is located the outer wall of shell.
Furthermore, an isolation layer is arranged on one side of the explosion-proof layer, an insulation layer is arranged on one side of the isolation layer, and the insulation layer is located on the inner wall of the shell.
A method for processing a high-frequency low-resistance electrolytic capacitor comprises the following steps:
s1, winding: winding the positive electrode film, the diaphragm and the negative electrode film through an electrolytic capacitor production winding machine to form a capacitor core by the positive electrode film, the diaphragm and the negative electrode film;
s2, welding: welding the positive pole column and the negative pole column in the capacitor body, wherein the positive pole column and the negative pole column are respectively communicated with the positive pole film and the negative pole film;
s3, power-up: electrifying the positive pole column and the negative pole column, and simultaneously putting the capacitor core into a formation liquid, wherein the formation liquid is one or more of an ammonium adipate formation liquid or a boric acid formation liquid, and the capacitor core is immersed in the formation liquid for 10-20min when electrified;
s4, adding negative pressure: placing the formed capacitor core in a vacuum bin, starting the vacuum bin, enabling the vacuum degree in the vacuum bin to be 60-85kPa, and under the condition of negative pressure, impregnating the formed and repaired core package with conductive polymer dispersion liquid;
s5, first drying: placing the capacitor core subjected to formation and repair treatment into dispersion liquid containing the soaked conductive polymer, and then placing the capacitor core into a drying box for drying;
s6, treating agent: soaking the dried capacitor core in a treating agent;
s7, second drying: taking out the capacitor core after soaking the treating agent, and then putting the capacitor core into a drying box for drying;
s8, packaging a shell: putting the capacitor core into the shell to form a capacitor body, and extruding the shell by using an extruder to form an arc-shaped groove outside the capacitor body;
s9, plastic package of a shell: and sleeving the packaging leather in the shell, and then blowing air to the packaging leather through a plastic packaging machine to be plastically packaged outside the capacitor body.
Further, in the step S6, the time for dipping the capacitor core in the post-treatment agent is 2 to 8min, and the number of cycles of dipping the capacitor core in the post-treatment agent is 2 to 6.
Further, in S5 and S6, the temperature of the first drying oven is set at 100-180 ℃, the drying time is 1-2.5h, the temperature of the second drying oven is 90-220 ℃, and the secondary drying time is 1-2.5 h.
In S6, the treating agent is one or more of glycerol, isopropanol, dimethyl sulfoxide, sorbitol and N, N-dimethylformamide.
Further, in S9, the temperature of the plastic packaging machine is adjusted to be 150 ℃ and 200 ℃, and the blowing time is 2-3 seconds.
The invention provides a high-frequency low-resistance electrolytic capacitor and a processing method thereof through improvement, compared with the prior art, the high-frequency low-resistance electrolytic capacitor has the following improvement and advantages:
(1) the adopted treating agent is used for treating the capacitor core by immersing the capacitor core into the treating agent, so that a conductive polymer film formed by the conductive polymer dispersion liquid in the capacitor core can be protected, the stability and the conductivity of the conductive polymer film can be improved, the electrical property of an electrolytic capacitor product is improved, and the service life of the electrolytic capacitor product is prolonged.
(2) Through the explosion-proof layer and the isolation layer that set up, when the explosion-proof layer can avoid electrolytic capacitor to use the diaphragm do not puncture the anti-explosion, the broken electron chip around the harm of the piece reflection of placing the shell improves the security that electrolytic capacitor used, and the isolation layer can keep apart the protection to electrolytic capacitor's electric capacity core.
(3) Through to electric capacity core circular telegram processing, carry out electric capacity core circular telegram processing when drying for the first time, can age electric capacity core when drying process, save the time to electric capacity core aging process, improve electric capacity core production efficiency.
(4) Through the shell encapsulation and the arc wall that set up, the shell encapsulation adopts mechanical type encapsulation, not only can improve the work efficiency of shell encapsulation simultaneously to electrolytic capacitor's shell encapsulation, and the setting of arc wall can improve the bulk strength of shell, improves the stability when electrolytic capacitor uses.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic view of the internal perspective of the present invention;
FIG. 3 is a schematic partial perspective view of the present invention;
FIG. 4 is a schematic view of the internal structure of the housing of the present invention;
FIG. 5 is a flow chart of the process of the present invention.
Description of reference numerals:
the capacitor comprises a capacitor body 1, a shell 2, a positive pole column 3, a negative pole column 4, a packaging skin 5, an arc-shaped groove 6, a positive pole film 7, a diaphragm 8, a negative pole film 9, a plug hole 10, an insulating ring 11, an aluminum shell 12, a reinforcing layer 13, an explosion-proof shell 14, an isolating layer 15 and an insulating layer 16.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
A method for processing a high-frequency low-resistance electrolytic capacitor comprises the following steps:
s1, winding: winding the positive electrode film 7, the diaphragm 8 and the negative electrode film 9 by an electrolytic capacitor production winding machine to form a capacitor core by the positive electrode film 7, the diaphragm 8 and the negative electrode film 9;
s2, welding: welding the positive pole 3 and the negative pole 4 in the capacitor body 1, wherein the positive pole 3 and the negative pole 4 are respectively communicated with the positive membrane 7 and the negative membrane 9;
s3, power-up: electrifying the positive pole post 3 and the negative pole post 4, simultaneously putting the capacitor core into a formation liquid, wherein the formation liquid is one or more of an ammonium adipate formation liquid or a boric acid formation liquid, and the capacitor core is immersed in the formation liquid for 15min when electrified;
s4, adding negative pressure: placing the formed capacitor core in a vacuum bin, starting the vacuum bin, enabling the vacuum degree in the vacuum bin to be a negative pressure of 75kPa, and impregnating the formed and repaired core package with a conductive polymer dispersion liquid under the negative pressure condition;
s5, first drying: putting the capacitor core subjected to formation repair treatment into dispersion liquid containing the soaked conductive polymer, and then putting the capacitor core into a drying box for drying, wherein the temperature of the drying box for first drying is set at 150 ℃, and the drying time is 2 hours;
s6, treating agent: soaking the dried capacitor core in a treating agent without adding the treating agent into glycerol, wherein the time for soaking the capacitor core in the treating agent is 6min, and the cycle number of soaking the capacitor core in the treating agent is 2-6;
s7, second drying: taking out the capacitor core soaked with the treating agent, and then putting the capacitor core into a drying box for drying, wherein the temperature of the drying box for the second drying is 180 ℃, and the time for the second drying is 2 hours;
s8, packaging a shell: putting the capacitor core into the shell 2 to form a capacitor body 1, and extruding the shell 2 by using an extruder to form an arc-shaped groove 6 outside the capacitor body 1;
s9, plastic package of a shell: the packaging skin 5 is sleeved inside the shell 2, then the packaging skin 5 is blown by a plastic packaging machine to be plastically packaged outside the capacitor body 1, the temperature of the plastic packaging machine is adjusted to be 180 ℃, and the blowing time is 3 seconds.
Example two
A method for processing a high-frequency low-resistance electrolytic capacitor comprises the following steps:
s1, winding: winding the positive electrode film 7, the diaphragm 8 and the negative electrode film 9 by an electrolytic capacitor production winding machine to form a capacitor core by the positive electrode film 7, the diaphragm 8 and the negative electrode film 9;
s2, welding: welding the positive pole 3 and the negative pole 4 in the capacitor body 1, wherein the positive pole 3 and the negative pole 4 are respectively communicated with the positive membrane 7 and the negative membrane 9;
s3, power-up: electrifying the positive pole post 3 and the negative pole post 4, simultaneously putting the capacitor core into a formation liquid, wherein the formation liquid is one or more of an ammonium adipate formation liquid or a boric acid formation liquid, and the capacitor core is immersed in the formation liquid for 15min when electrified;
s4, adding negative pressure: placing the formed capacitor core in a vacuum bin, starting the vacuum bin, enabling the vacuum degree in the vacuum bin to be a negative pressure of 75kPa, and impregnating the formed and repaired core package with a conductive polymer dispersion liquid under the negative pressure condition;
s5, first drying: putting the capacitor core subjected to formation repair treatment into dispersion liquid containing the soaked conductive polymer, and then putting the capacitor core into a drying box for drying, wherein the temperature of the drying box for first drying is set at 150 ℃, and the drying time is 2 hours;
s6, treating agent: soaking the dried capacitor core in a treating agent, wherein the treating agent is glycerol, the time for soaking the capacitor core in the treating agent is 6min, and the cycle number of soaking the capacitor core in the treating agent is 2-6;
s7, second drying: taking out the capacitor core soaked with the treating agent, and then putting the capacitor core into a drying box for drying, wherein the temperature of the drying box for the second drying is 180 ℃, and the time for the second drying is 2 hours;
s8, packaging a shell: putting the capacitor core into the shell 2 to form a capacitor body 1, and extruding the shell 2 by using an extruder to form an arc-shaped groove 6 outside the capacitor body 1;
s9, plastic package of a shell: the packaging skin 5 is sleeved inside the shell 2, then the packaging skin 5 is blown by a plastic packaging machine to be plastically packaged outside the capacitor body 1, the temperature of the plastic packaging machine is adjusted to be 180 ℃, and the blowing time is 3 seconds.
In the first embodiment, the capacitor core is not placed in the treating agent for soaking treatment, in the second embodiment, the capacitor core is placed in the treating agent for soaking treatment, and after the capacitor core is soaked by the treating agent, the conductive polymer film formed by the conductive polymer dispersion liquid in the capacitor core can be protected, the stability and the conductivity of the conductive polymer film can be improved, and the electrical property and the service life of an electrolytic capacitor product can be improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-frequency low-resistance electrolytic capacitor is characterized in that: including electric capacity body (1), the inside of electric capacity body (1) is provided with shell (2), the top of shell (2) is provided with anodal post (3), the top of shell (2) is provided with negative pole post (4), the inside of shell (2) is provided with the electric capacity core, the electric capacity core includes anodal membrane (7), diaphragm (8) and negative pole membrane (9), and diaphragm (8) are located between anodal membrane (7) and negative pole membrane (9).
2. A high-frequency low-resistance electrolytic capacitor according to claim 1, characterized in that: two inserting holes (10) are formed in the top of the shell (2), the positive pole column (3) and the negative pole column (4) are respectively inserted into the two inserting holes (10), an insulating ring (11) is arranged in each inserting hole (10), and the two insulating rings (11) are respectively sleeved on the positive pole column (3) and the negative pole column (4).
3. A high-frequency low-resistance electrolytic capacitor according to claim 1, characterized in that: the shell of shell (2) is provided with packing skin (5), the outside of capacitor body (1) is provided with arc wall (6).
4. A high-frequency low-resistance electrolytic capacitor according to claim 1, characterized in that: the shell (2) comprises an aluminum shell (12), a reinforcing layer (13) is arranged on one side of the aluminum shell (12), an explosion-proof layer (14) is arranged on one side of the reinforcing layer (13), and the aluminum shell (12) is located on the outer wall of the shell (2).
5. The high-frequency low-resistance electrolytic capacitor according to claim 4, wherein: an isolation layer (15) is arranged on one side of the explosion-proof layer (14), an insulation layer (16) is arranged on one side of the isolation layer (15), and the insulation layer (16) is located on the inner wall of the shell (2).
6. A high-frequency low-resistance electrolytic capacitor processing method is characterized in that: the method comprises the following steps:
s1, winding: winding the positive electrode film (7), the diaphragm (8) and the negative electrode film (9) through an electrolytic capacitor production winding machine to enable the positive electrode film (7), the diaphragm (8) and the negative electrode film (9) to form a capacitor core;
s2, welding: welding the positive pole post (3) and the negative pole post (4) in the capacitor body (1), wherein the positive pole post (3) and the negative pole post (4) are respectively communicated with the positive pole film (7) and the negative pole film (9);
s3, power-up: electrifying the positive pole posts (3) and the negative pole posts (4), simultaneously putting the capacitor core into a formation liquid, wherein the formation liquid is one or more of an ammonium adipate formation liquid or a boric acid formation liquid, and the capacitor core is immersed in the formation liquid for 10-20min when electrified;
s4, adding negative pressure: placing the formed capacitor core in a vacuum bin, starting the vacuum bin, enabling the vacuum degree in the vacuum bin to be 60-85kPa, and under the condition of negative pressure, impregnating the formed and repaired core package with conductive polymer dispersion liquid;
s5, first drying: placing the capacitor core subjected to formation and repair treatment into dispersion liquid containing the soaked conductive polymer, and then placing the capacitor core into a drying box for drying;
s6, treating agent: soaking the dried capacitor core in a treating agent;
s7, second drying: taking out the capacitor core after soaking the treating agent, and then putting the capacitor core into a drying box for drying;
s8, packaging a shell: putting the capacitor core into the shell (2) to form a capacitor body (1), and extruding the shell (2) by using an extruder to form an arc-shaped groove (6) outside the capacitor body (1);
s9, plastic package of a shell: the packaging skin (5) is sleeved inside the shell (2), and then the packaging skin (5) is blown through a plastic packaging machine to be plastically packaged outside the capacitor body (1).
7. The method for processing the high-frequency low-resistance electrolytic capacitor according to claim 6, wherein the method comprises the following steps: in the step S6, the time of the capacitor core after-dipping treatment agent is 2-8min, and the cycle number of the capacitor core after-dipping treatment agent is 2-6.
8. The method for processing the high-frequency low-resistance electrolytic capacitor according to claim 6, wherein the method comprises the following steps: in S5 and S6, the temperature of the first drying oven is set at 100-180 ℃, the drying time is 1-2.5h, the temperature of the second drying oven is 90-220 ℃, and the secondary drying time is 1-2.5 h.
9. The method for processing the high-frequency low-resistance electrolytic capacitor according to claim 6, wherein the method comprises the following steps: in the S6, the treating agent is one or a mixture of glycerol, isopropanol, dimethyl sulfoxide, sorbitol and N, N-dimethylformamide.
10. The method for processing the high-frequency low-resistance electrolytic capacitor according to claim 6, wherein the method comprises the following steps: in S9, the temperature of the plastic packaging machine is adjusted to be 150 ℃ and 200 ℃, and the blowing time is 2-3 seconds.
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| CN210805523U (en) * | 2019-11-29 | 2020-06-19 | 深圳市凯达新电子有限公司 | Electrolytic capacitor with high leakproofness |
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