CN113658804A - Anti-seismic laminated solid-state aluminum electrolytic capacitor and manufacturing method thereof - Google Patents
Anti-seismic laminated solid-state aluminum electrolytic capacitor and manufacturing method thereof Download PDFInfo
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- CN113658804A CN113658804A CN202111018942.9A CN202111018942A CN113658804A CN 113658804 A CN113658804 A CN 113658804A CN 202111018942 A CN202111018942 A CN 202111018942A CN 113658804 A CN113658804 A CN 113658804A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 47
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 53
- 239000002184 metal Substances 0.000 claims description 53
- 239000007787 solid Substances 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Classifications
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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
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/045—Electrodes or formation of dielectric layers thereon characterised by the material based on aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/003—Apparatus or processes for encapsulating capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/006—Apparatus or processes for applying terminals
-
- 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
-
- 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
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid capacitors
-
- 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
- H01G9/15—Solid electrolytic capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
An anti-seismic laminated solid-state aluminum electrolytic capacitor comprises a sealing component and a core fixedly arranged in the sealing component, wherein a positive guide pin and a negative guide pin are electrically connected to the core, and penetrate out of the sealing component; the core is composed of a plurality of laminated single sheets, and each single sheet comprises a positive end, a negative end and a shielding adhesive line positioned between the positive end and the negative end; the positive end of the single piece is provided with a positive fixing terminal, the positive guide pin is connected with the positive fixing terminal, the negative end of the single piece is provided with a negative fixing terminal, and the negative guide pin is connected with the negative fixing terminal. The positive end and the negative end of the laminated single chip are respectively fixed by the positive fixing terminal and the negative fixing terminal, so that the laminated single chip can be effectively prevented from being loosened due to the influence of the external environment in the assembling process and the using process of the capacitor, and the electrical property of the capacitor is stable.
Description
Technical Field
The invention relates to the technical field of solid-state aluminum electrolytic capacitors, in particular to an anti-seismic laminated solid-state aluminum electrolytic capacitor and a manufacturing method thereof.
Background
The laminated solid aluminum electrolytic capacitor adopts a solid conductive polymer with high conductivity to replace a liquid electrolyte in the traditional capacitor, and adopts a laminating mode to connect single sheets forming the core of the laminated solid aluminum electrolytic capacitor in parallel. Compared with a liquid aluminum electrolytic capacitor, the laminated solid aluminum electrolytic capacitor has the advantages of smaller volume, smaller Equivalent Series Resistance (ESR), wide temperature range, environmental protection, long service life and the like, meets the development trend of miniaturization and high frequency of electronic products, and meets the requirements of Surface Mount Technology (SMT).
Since the core of the laminated solid-state aluminum electrolytic capacitor is formed by laminating single sheets, it means that the single sheets constituting the core may be loosened due to external influences during the assembly process of the capacitor and the use process of the capacitor, resulting in unstable electrical properties of the product.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an anti-seismic laminated solid-state aluminum electrolytic capacitor and a manufacturing method thereof.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: an anti-seismic laminated solid-state aluminum electrolytic capacitor comprises a sealing component and a core fixedly arranged in the sealing component, wherein a positive guide pin and a negative guide pin are electrically connected to the core, and penetrate out of the sealing component; the core is composed of a plurality of laminated single sheets, and each single sheet comprises a positive end, a negative end and a shielding glue line positioned between the positive end and the negative end; the positive end of the single piece is provided with a positive fixing terminal, the positive guide pin is connected with the positive fixing terminal, the negative end of the single piece is provided with a negative fixing terminal, and the negative guide pin is connected with the negative fixing terminal.
Preferably, the welding block is arranged between the positive terminals of the two adjacent single sheets, and the positive terminals of the single sheets are welded on the welding block.
Preferably, the positive electrode fixing terminal and the negative electrode fixing terminal are arranged in a U shape, and the positive end and the negative end of the single sheet are respectively embedded into the grooves of the U-shaped structure.
Preferably, in the anti-seismic laminated solid-state aluminum electrolytic capacitor, the top of the positive fixing terminal is bent and then buckled with the positive end of the topmost single sheet.
In the above anti-seismic stacked solid-state aluminum electrolytic capacitor, preferably, a conductive metal paste is filled between the single negative electrode terminal and the side wall of the negative electrode fixing terminal.
Preferably, the sealing assembly comprises a metal shell and a metal seat plate, the metal shell is hermetically connected to the metal seat plate, two through holes are formed in the metal seat plate, and a rubber pad with a hole in the middle is arranged in each through hole; and an insulating pad is arranged between the positive fixed terminal and the metal seat plate and between the negative fixed terminal and the metal seat plate.
The manufacturing method of the anti-seismic laminated solid-state aluminum electrolytic capacitor comprises the following steps:
(1) laminating the positive electrode ends of the single sheets together, and laminating the negative electrode ends together;
(2) the positive ends of the laminated single sheets are fixed on a positive fixing terminal, and the negative ends of the single sheets are fixed on a negative fixing terminal;
(3) electrically connecting the positive guide pin and the negative guide pin with a positive fixing terminal and a negative fixing terminal respectively;
(4) seal assembly is used for sealing, and the positive fixing terminal and the negative fixing terminal are fixed with the seal assembly, and the positive guide pin and the negative guide pin penetrate out of the seal assembly.
In the above method for manufacturing an anti-seismic laminated solid-state aluminum electrolytic capacitor, preferably, the step (2) further includes filling a conductive metal paste between the monolithic negative electrode terminal and the negative electrode fixing terminal.
In the manufacturing method of the anti-seismic stacked solid-state aluminum electrolytic capacitor, preferably, the sealing components adopted in the step (4) are a metal shell and a metal seat plate, and before the core is fixed to the metal seat plate, an insulating pad is respectively arranged between the positive electrode fixed terminal and the metal seat plate and between the negative electrode fixed terminal and the metal seat plate.
Compared with the prior art, the invention has the advantages that: the positive end and the negative end of the laminated single chip are respectively fixed by the positive fixing terminal and the negative fixing terminal, so that the laminated single chip can be effectively prevented from being loosened due to the influence of the external environment in the assembling process and the using process of the capacitor, and the electrical property of the capacitor is stable. In addition, conductive metal paste is filled between the negative electrode end of the single piece and two side walls of the negative electrode fixing terminal, so that the ESR value can be reduced, and the electrical property of the laminated solid-state aluminum electrolytic capacitor is improved.
Drawings
FIG. 1 is a front sectional view of the anti-seismic laminated solid-state aluminum electrolytic capacitor in example 1
FIG. 2 is a cross-sectional view of the left-side negative electrode of the capacitor in example 1
FIG. 3 is a cross-sectional view of the right side positive electrode of the capacitor in example 1
Description of the figures
1. A seal assembly; 11. a metal housing; 12. a metal seat plate; 2. a core; 21. a single sheet; 211. a positive terminal; 212. a negative terminal; 213. shielding the rubber wire; 3. a positive electrode fixed terminal; 4. a negative electrode fixing terminal; 5. a positive guide pin; 6. a negative electrode guide pin; 7. an insulating pad; 8. a conductive metal paste; 9. welding the blocks; 10. and (7) a rubber pad.
Detailed Description
In order to facilitate an understanding of the present invention, the present invention will be described more fully and in detail with reference to the preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1, the anti-vibration stacked solid aluminum electrolytic capacitor in this embodiment includes a sealing component 1 and a core 2 fixedly disposed in the sealing component 1, wherein the core 2 is electrically connected with a positive electrode guide pin 5 and a negative electrode guide pin 6, and the positive electrode guide pin 5 and the negative electrode guide pin 6 penetrate through the sealing component 1.
In this embodiment, the sealing assembly 1 is composed of a metal housing 11 and a metal seat plate 12, and a metal sealing member is used to replace a conventional plastic sealing member, so that the sealing assembly has better waterproof performance compared with a conventional laminated solid-state aluminum electrolytic capacitor.
The core 2 is composed of a plurality of laminated single sheets 21, each single sheet 21 comprises a positive end 211, a negative end 212 and a shielding glue line 213 positioned between the positive end 211 and the negative end 212, wherein a welding block 9 is arranged between the positive ends 211 of two adjacent single sheets 21, and the positive ends 211 of the single sheets 21 are welded on the welding block 9, so that all the single sheets 21 are connected in parallel.
As shown in fig. 2 and 3, the positive terminal 211 and the negative terminal 212 of the stacked single sheets 21 are respectively inserted into the grooves of the positive fixing terminal 3 and the negative fixing terminal 4 of the U-shaped structure, and the top of the positive fixing terminal 3 is bent to catch the positive terminal 211 of the topmost single sheet 21. This structure fixes the positive terminals 211 of all the single pieces 21 in the positive fixing terminal 3, and can effectively prevent the single pieces 21 from being loosened due to external influence. In addition, the conductive metal paste 8 is filled between the edge of the negative electrode end 212 of the single piece 21 and the two side walls of the negative electrode fixed terminal 4, which can reduce the ESR value and improve the performance of the laminated solid-state aluminum electrolytic capacitor.
The positive electrode guide pin 5 is welded at the bottom of the positive electrode fixing terminal 3, and the negative electrode guide pin 6 is adhered at the bottom of the negative electrode fixing terminal 4 through the conductive metal paste 8. In this embodiment, the negative electrode lead may be connected to the negative electrode fixing terminal by welding or the like. Meanwhile, the bottoms of the positive fixed terminal 3 and the negative fixed terminal 4 are fixed on a metal seat plate 12, the positive guide pin 5 and the negative guide pin 6 penetrate through the metal seat plate 12 through a rubber gasket 10 on the metal seat plate 12, and the spaces between the positive guide pin 5 and the negative guide pin 6 and the metal seat plate 12 are sealed through the rubber gasket 10; in addition all be provided with insulating pad 7 between the bottom of anodal fixed terminal 3 and negative pole fixed terminal 4 and metal base plate 12, can effectually prevent that guide pin and metal base plate 12 from switching on through the setting up of rubber pad 10 and insulating pad 7, played fine guard action to the solid-state aluminum electrolytic capacitor of lamination.
The manufacturing method of the shock-resistant laminated solid-state aluminum electrolytic capacitor in the embodiment comprises the following steps:
(1) the positive terminals 211 of the respective single sheets 21 are welded together using the welding block 9, and the negative terminals 212 are laminated together.
(2) Embedding the positive ends 211 of the welded single sheets 21 into the grooves of the U-shaped positive fixing terminal 3, and buckling the top of the positive fixing terminal 3 with the positive ends 211 of the topmost single sheets 21; the negative electrode end 212 of the laminated single piece 21 is embedded into the groove of the U-shaped negative electrode fixed terminal 4, and the conductive metal paste 8 is injected between the edge of the negative electrode end 212 of the single piece 21 and the two side walls of the negative electrode fixed terminal 4.
(3) The positive guide pin 5 is welded to the bottom of the positive fixing terminal 3 by electric welding, and the negative guide pin 6 is adhered to the bottom of the negative fixing terminal 4 by conductive metal slurry or the negative guide pin 6 is welded to the bottom of the negative fixing terminal 4 by electric welding.
(4) An insulating pad 7 is padded between the metal seat plate 12 and the bottoms of the positive fixed terminal 3 and the negative fixed terminal 4, and the positive guide pin 5 and the negative guide pin 6 penetrate through the insulating pad 7 and penetrate through the metal seat plate 12 through a rubber pad 10 on the metal seat plate 12.
(5) The positive electrode fixed terminal 3 and the negative electrode fixed terminal 4 are fixed on the metal base plate 12, and then the metal case 11 is covered, and the metal case 11 and the metal base plate 12 are fixed, thereby obtaining the laminated aluminum electrolytic capacitor.
In the embodiment, the positive end 211 and the negative end 212 of the laminated single piece 21 are respectively fixed by the positive fixing terminal 3 and the negative fixing terminal 4, so that the laminated single piece 21 can be effectively prevented from being loosened due to the influence of the external environment in the assembling process of the capacitor and the using process of the capacitor, and the electrical property of the capacitor is stable. In addition, conductive metal paste is filled between the negative electrode end of the single piece and two side walls of the negative electrode fixing terminal, so that the ESR value can be reduced, and the electrical property of the laminated solid-state aluminum electrolytic capacitor is improved.
Claims (9)
1. An anti-seismic laminated solid-state aluminum electrolytic capacitor comprises a sealing component and a core fixedly arranged in the sealing component, wherein a positive guide pin and a negative guide pin are electrically connected to the core, and penetrate out of the sealing component; the core comprises a plurality of laminated single sheets, each single sheet comprises a positive end, a negative end and a shielding glue line between the positive end and the negative end, and the core is characterized in that: the positive end of the single piece is provided with a positive fixing terminal, the positive guide pin is connected with the positive fixing terminal, the negative end of the single piece is provided with a negative fixing terminal, and the negative guide pin is connected with the negative fixing terminal.
2. The earthquake-resistant laminated solid aluminum electrolytic capacitor according to claim 1, characterized in that: and a welding block is arranged between the positive ends of the two adjacent single sheets, and the positive ends of the single sheets are welded on the welding block.
3. An earthquake-resistant laminated solid aluminum electrolytic capacitor according to claim 2, characterized in that: the positive electrode fixing terminal and the negative electrode fixing terminal are arranged in a U shape, and the positive electrode end and the negative electrode end of the single sheet are respectively embedded into the grooves of the U-shaped structures.
4. An earthquake-resistant laminated solid aluminum electrolytic capacitor according to claim 3, characterized in that: and the top of the positive fixing terminal is buckled with the positive end of the topmost single sheet.
5. An earthquake-resistant laminated solid aluminum electrolytic capacitor according to claim 3, characterized in that: and conductive metal slurry is filled between the single negative electrode end and the side wall of the negative electrode fixed terminal.
6. The earthquake-resistant laminated solid aluminum electrolytic capacitor according to claim 1, characterized in that: the sealing assembly comprises a metal shell and a metal seat plate, the metal shell is connected to the metal seat plate in a sealing mode, two through holes are formed in the metal seat plate, and a rubber pad with a hole in the middle is arranged in each through hole; and an insulating pad is arranged between the positive fixed terminal and the metal seat plate and between the negative fixed terminal and the metal seat plate.
7. A method of manufacturing an earthquake-resistant laminated solid state aluminum electrolytic capacitor according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
(1) laminating the positive electrode ends of the single sheets together, and laminating the negative electrode ends together;
(2) the positive ends of the laminated single sheets are fixed on a positive fixing terminal, and the negative ends of the single sheets are fixed on a negative fixing terminal;
(3) electrically connecting the positive guide pin and the negative guide pin with a positive fixing terminal and a negative fixing terminal respectively;
(4) seal assembly is used for sealing, and the positive fixing terminal and the negative fixing terminal are fixed with the seal assembly, and the positive guide pin and the negative guide pin penetrate out of the seal assembly.
8. The method of manufacturing a seismic stacked solid state aluminum electrolytic capacitor of claim 7, wherein: the step (2) further comprises filling conductive metal paste between the monolithic negative electrode terminal and the negative electrode fixing terminal.
9. The method of manufacturing a seismic stacked solid state aluminum electrolytic capacitor of claim 7, wherein: and (4) the sealing components adopted in the step (4) are a metal shell and a metal seat plate, and before the core and the metal seat plate are fixed, an insulating pad is respectively arranged between the positive fixed terminal and the metal seat plate and between the negative fixed terminal and the metal seat plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111018942.9A CN113658804A (en) | 2021-09-01 | 2021-09-01 | Anti-seismic laminated solid-state aluminum electrolytic capacitor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111018942.9A CN113658804A (en) | 2021-09-01 | 2021-09-01 | Anti-seismic laminated solid-state aluminum electrolytic capacitor and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113658804A true CN113658804A (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111018942.9A Pending CN113658804A (en) | 2021-09-01 | 2021-09-01 | Anti-seismic laminated solid-state aluminum electrolytic capacitor and manufacturing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170582A (en) * | 2017-07-01 | 2017-09-15 | 湖南艾华集团股份有限公司 | A kind of stacked capacitor |
| CN208189406U (en) * | 2018-03-01 | 2018-12-04 | 湖南艾华集团股份有限公司 | A kind of rectangular stacked aluminium electrolutic capacitor |
| CN211125387U (en) * | 2019-12-19 | 2020-07-28 | 深圳市粤之光电子科技有限公司 | Laminated chip type solid aluminum electrolytic capacitor |
| CN215933396U (en) * | 2021-09-01 | 2022-03-01 | 湖南艾华集团股份有限公司 | Anti-seismic laminated solid-state aluminum electrolytic capacitor |
-
2021
- 2021-09-01 CN CN202111018942.9A patent/CN113658804A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170582A (en) * | 2017-07-01 | 2017-09-15 | 湖南艾华集团股份有限公司 | A kind of stacked capacitor |
| CN208189406U (en) * | 2018-03-01 | 2018-12-04 | 湖南艾华集团股份有限公司 | A kind of rectangular stacked aluminium electrolutic capacitor |
| CN211125387U (en) * | 2019-12-19 | 2020-07-28 | 深圳市粤之光电子科技有限公司 | Laminated chip type solid aluminum electrolytic capacitor |
| CN215933396U (en) * | 2021-09-01 | 2022-03-01 | 湖南艾华集团股份有限公司 | Anti-seismic laminated solid-state aluminum electrolytic capacitor |
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