CN115512963B - SMD type aluminum electrolytic capacitor resistant to instantaneous charge and discharge - Google Patents
SMD type aluminum electrolytic capacitor resistant to instantaneous charge and discharge Download PDFInfo
- Publication number
- CN115512963B CN115512963B CN202211154770.2A CN202211154770A CN115512963B CN 115512963 B CN115512963 B CN 115512963B CN 202211154770 A CN202211154770 A CN 202211154770A CN 115512963 B CN115512963 B CN 115512963B
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- Prior art keywords
- electrolytic capacitor
- aluminum electrolytic
- type aluminum
- patch
- capacitor
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- 239000003990 capacitor Substances 0.000 title claims abstract description 85
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 50
- 238000006116 polymerization reaction Methods 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 7
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- HDTRYLNUVZCQOY-UHFFFAOYSA-N α-D-glucopyranosyl-α-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OC1C(O)C(O)C(O)C(CO)O1 HDTRYLNUVZCQOY-UHFFFAOYSA-N 0.000 claims description 3
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 3
- HDTRYLNUVZCQOY-WSWWMNSNSA-N Trehalose Natural products O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-WSWWMNSNSA-N 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- HDTRYLNUVZCQOY-LIZSDCNHSA-N alpha,alpha-trehalose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-LIZSDCNHSA-N 0.000 claims description 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 3
- 239000001630 malic acid Substances 0.000 claims description 3
- 235000011090 malic acid Nutrition 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 3
- 229920000128 polypyrrole Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000004334 sorbic acid Substances 0.000 claims description 3
- 229940075582 sorbic acid Drugs 0.000 claims description 3
- 235000010199 sorbic acid Nutrition 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011244 liquid electrolyte Substances 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0003—Protection against electric or thermal overload; cooling arrangements; means for avoiding the formation of cathode films
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
- H01G2/06—Mountings specially adapted for mounting on a printed-circuit support
- H01G2/065—Mountings specially adapted for mounting on a printed-circuit support for surface mounting, e.g. chip capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention relates to the technical field of capacitors, in particular to an instantaneous charge and discharge resistant patch type aluminum electrolytic capacitor, which solves the problems that the service life of the patch type aluminum electrolytic capacitor is greatly reduced due to the fact that the heat dissipation effect of the patch type aluminum electrolytic capacitor is limited and cannot meet the requirement of heat dissipation in continuous use in the prior art, and meanwhile, the patch type aluminum electrolytic capacitor is directly connected with a circuit board through a patch when the patch type aluminum electrolytic capacitor is connected with the circuit board, and the durability of the patch is greatly reduced due to the fact that instantaneous charge and discharge exist in use. A patch type aluminum electrolytic capacitor resistant to instantaneous charge and discharge comprises a capacitor body, wherein patches are fixedly connected to two ends of the capacitor body, and guide sheets are fixedly connected to one sides of the two patches. According to the invention, the heat emitted by the electrolyte in the capacitor body is conducted by the bearing ring and all the heat conducting fins, so that the heat can be diffused, the purpose of rapid heat dissipation is achieved, and the service life of the capacitor is prolonged.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a patch type aluminum electrolytic capacitor resistant to instantaneous charge and discharge.
Background
The aluminium electrolytic capacitor is made up by using aluminium cylinder as negative electrode, in which a liquid electrolyte is filled, and inserting a bent aluminium strip as positive electrode, and is called aluminium electrolytic capacitor, and is a general electrolytic capacitor which is made up by using aluminium material and has good electric property, wide application range and high reliability, and the capacitor is an energy-storing element used for tuning, filtering, coupling, bypass, energy conversion and time delay in the circuit. Capacitors are generally called capacitors, and can be classified into three types of fixed capacitors, semi-variable capacitors, and variable capacitors according to their structures, including patch type aluminum electrolytic capacitors.
The two electrodes of the patch aluminum electrolytic capacitor are respectively connected to the positive electrode and the negative electrode of the power supply, residual voltage still exists between the two pins after the power supply is disconnected, the patch aluminum electrolytic capacitor stores charges, voltage is established between the electrode plates of the patch aluminum electrolytic capacitor, electric energy is accumulated, the process is called charging of the patch aluminum electrolytic capacitor, certain voltage exists at two ends of the charged patch aluminum electrolytic capacitor, and the process of discharging the charges stored by the patch aluminum electrolytic capacitor to a circuit is called discharging of the patch aluminum electrolytic capacitor.
The patch aluminum electrolytic capacitor in the current market is various and different in use, but after the patch aluminum electrolytic capacitor is continuously used for a long time, the temperature rises due to continuous use of electrolyte, and the heat dissipation effect of the patch aluminum electrolytic capacitor is limited, so that the heat dissipation during continuous use cannot be met, the service life of the patch aluminum electrolytic capacitor is greatly reduced, meanwhile, the traditional patch aluminum electrolytic capacitor is directly connected with the circuit board through the patch when being connected with the circuit board, and due to instantaneous charge and discharge, the durability of the patch is greatly reduced, and the patch aluminum electrolytic capacitor is very inconvenient.
Disclosure of Invention
The invention aims to provide a patch type aluminum electrolytic capacitor resistant to instantaneous charge and discharge, which solves the problems that the patch type aluminum electrolytic capacitor in the prior art cannot meet the requirement of heat dissipation in continuous use due to limited heat dissipation effect, so that the service life of the patch type aluminum electrolytic capacitor is greatly reduced, and meanwhile, the patch type aluminum electrolytic capacitor in the prior art is directly connected with a circuit board through the patch when being connected with the circuit board, and the durability of the patch is greatly reduced due to the instantaneous charge and discharge in use.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a resistant instantaneous charge and discharge's SMD aluminium electrolytic capacitor, includes the condenser body, the equal fixedly connected with paster in both ends of condenser body, and the equal fixedly connected with conducting strip in one side of two paster, the outside of condenser body has cup jointed a plurality of and has born the weight of the ring, and the equal fixedly connected with a plurality of heat conduction fin in the outside of all bearing the weight of the ring to the bottom of condenser body is equipped with the mounting panel, wherein fixed connection between the top of mounting panel and all bearing the weight of the ring.
Preferably, one side of each of the two guide sheets, which is close to the two patches, is detachably connected with a connecting sheet.
Preferably, both the two connecting pieces and the two guide pieces are made of conductive materials.
Preferably, the bottoms of the two mounting plates are provided with mounting grooves.
Preferably, the shell of the capacitor body is made of insulating heat-conducting materials, and all the heat-conducting fins conduct heat of the capacitor body.
Preferably, the method for producing the patch-type aluminum electrolytic capacitor comprises the following steps in sequence:
step one: nailing, winding, formation, lead manufacturing and flattening, forming and cutting, impregnation, polymerization, assembly, aging, sorting and printing;
step two: the solid patch type aluminum electrolytic capacitor uses improved electrochemical polymerization liquid to carry out electrochemical polymerization to produce polypyrrole;
step three: the formula of the improved electrochemical polymerization liquid is as follows: 0.1mol/L of p-toluenesulfonic acid, 0.2mol/L of electrochemical polymerization solution of pyrrole monomer, 1.3g/L of trehalose, 1.5g/L of malic acid, 0.6g/L of citric acid and 0.2g/L of sorbic acid.
The invention has at least the following beneficial effects:
when the chip-type aluminum electrolytic capacitor resistant to instantaneous charge and discharge is used, the guide sheets at the two ends of the capacitor body are firstly utilized to be installed and butted with the circuit board, the guide sheets are utilized to avoid the chip from being directly contacted with a power supply, the damage to the chip during instantaneous charge and discharge can be avoided, meanwhile, when the capacitor body is used, the heat emitted by electrolyte in the capacitor body is conducted by utilizing the bearing ring and all the heat conducting fins, so that the heat can be diffused, the purpose of rapid heat dissipation is achieved, the service life of the capacitor is prolonged, the problem that the service life of the chip-type aluminum electrolytic capacitor in the prior art is greatly reduced due to the fact that the heat dissipation effect of the chip-type aluminum electrolytic capacitor in the prior art cannot be met in continuous use is avoided, and the service life of the chip-type aluminum electrolytic capacitor in the prior art is greatly reduced due to the fact that the chip-type aluminum electrolytic capacitor in the prior art is directly connected with the circuit board through the chip.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view block diagram of the present invention;
FIG. 2 is a side elevational structural view of the present invention;
fig. 3 is a bottom view of the present invention.
In the figure: 1. a capacitor body; 2. a patch; 3. a guide piece; 4. a connecting sheet; 5. a carrier ring; 6. a heat conduction fin; 7. a mounting plate; 8. and a mounting groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1-3, including capacitor body 1, the equal fixedly connected with paster 2 in both ends of capacitor body 1, and the equal fixedly connected with conducting strip 3 in one side of two paster 2, the outside of capacitor body 1 has cup jointed a plurality of carrier ring 5, and the equal fixedly connected with a plurality of heat conduction fin 6 in the outside of all carrier rings 5 to the bottom of capacitor body 1 is equipped with mounting panel 7, wherein fixed connection between the top of mounting panel 7 and all carrier rings 5, mounting groove 8 has all been seted up to the bottom of two mounting panels 7.
Firstly, the guide sheets 3 at the two ends of the capacitor body 1 are utilized to be installed and butted with a circuit board, the guide sheets 3 are utilized to avoid the direct contact of the patch 2 with a power supply, the damage to the patch 2 during instantaneous charge and discharge can be avoided, meanwhile, when the capacitor body 1 is used, the bearing ring 5 and all the heat conducting fins 6 are utilized to conduct heat emitted by electrolyte in the capacitor body 1, so that the heat can be diffused, the purpose of rapid heat dissipation is achieved, and the service life of the capacitor is prolonged.
Example two
Referring to fig. 1-3, a connecting piece 4 is detachably connected to one side of each of the two guide pieces 3, which is close to each of the two patches 2.
The patch 2 may be further protected by means of the connecting piece 4.
Example III
Referring to fig. 1-3, the two connecting pieces 4 and the two conducting pieces 3 are made of conductive materials, the shell of the capacitor body 1 is made of insulating and heat conducting materials, and all the heat conducting fins 6 conduct heat of the capacitor body 1.
The heat of the capacitor body 1 is conducted by the heat conducting fins 6, so that the heat dissipation rate of the capacitor body 1 is accelerated.
Example IV
Referring to fig. 1 to 3, the method for producing the patch type aluminum electrolytic capacitor comprises the following steps in order:
step one: nailing, winding, formation, lead manufacturing and flattening, forming and cutting, impregnation, polymerization, assembly, aging, sorting and printing;
step two: the solid patch type aluminum electrolytic capacitor uses improved electrochemical polymerization liquid to carry out electrochemical polymerization to produce polypyrrole;
step three: the improved electrochemical polymerization solution comprises the following components: 0.1mol/L of p-toluenesulfonic acid, 0.2mol/L of electrochemical polymerization solution of pyrrole monomer, 1.3g/L of trehalose, 1.5g/L of malic acid, 0.6g/L of citric acid and 0.2g/L of sorbic acid.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a resistant instantaneous charge and discharge's paster formula aluminium electrolytic capacitor, includes capacitor body (1), its characterized in that, the equal fixedly connected with paster (2) in both ends of capacitor body (1), and the equal fixedly connected with guide vane (3) in one side of two paster (2), the outside of capacitor body (1) has cup jointed a plurality of and has born ring (5), and the equal fixedly connected with a plurality of heat conduction fin (6) in the outside of all bearing ring (5) to the bottom of capacitor body (1) is equipped with mounting panel (7), wherein fixed connection between the top of mounting panel (7) and all bearing ring (5).
2. The patch type aluminum electrolytic capacitor with instantaneous charge and discharge resistance according to claim 1, wherein one side of each of the two guide sheets (3) close to the two patches (2) is detachably connected with a connecting sheet (4).
3. The patch type aluminum electrolytic capacitor with instant charge and discharge resistance according to claim 2, wherein the two connecting pieces (4) and the two guide pieces (3) are made of conductive materials.
4. The patch-type aluminum electrolytic capacitor resistant to instantaneous charge and discharge according to claim 1, wherein the bottoms of the two mounting plates (7) are provided with mounting grooves (8).
5. The chip-type aluminum electrolytic capacitor with instantaneous charge and discharge resistance according to claim 1, wherein the shell of the capacitor body (1) is made of an insulating heat-conducting material, and all the heat-conducting fins (6) conduct heat of the capacitor body (1).
6. The patch-type aluminum electrolytic capacitor resistant to instantaneous charge and discharge according to claim 1, wherein the production method of the patch-type aluminum electrolytic capacitor comprises the following steps in sequence:
step one: nailing, winding, formation, lead manufacturing and flattening, forming and cutting, impregnation, polymerization, assembly, aging, sorting and printing;
step two: the solid patch type aluminum electrolytic capacitor uses improved electrochemical polymerization liquid to carry out electrochemical polymerization to produce polypyrrole;
step three: the formula of the improved electrochemical polymerization liquid is as follows: 0.1mol/L of p-toluenesulfonic acid, 0.2mol/L of electrochemical polymerization solution of pyrrole monomer, 1.3g/L of trehalose, 1.5g/L of malic acid, 0.6g/L of citric acid and 0.2g/L of sorbic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211154770.2A CN115512963B (en) | 2022-09-21 | 2022-09-21 | SMD type aluminum electrolytic capacitor resistant to instantaneous charge and discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211154770.2A CN115512963B (en) | 2022-09-21 | 2022-09-21 | SMD type aluminum electrolytic capacitor resistant to instantaneous charge and discharge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115512963A CN115512963A (en) | 2022-12-23 |
| CN115512963B true CN115512963B (en) | 2023-12-05 |
Family
ID=84505541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211154770.2A Active CN115512963B (en) | 2022-09-21 | 2022-09-21 | SMD type aluminum electrolytic capacitor resistant to instantaneous charge and discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115512963B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337363A (en) * | 2013-06-05 | 2013-10-02 | 广西华赣电力设备有限公司 | An energy storage pulse capacitor |
| CN105788865A (en) * | 2016-03-24 | 2016-07-20 | 韶关富仕达电子科技有限公司 | Production technology of patch-type aluminum electrolytic capacitor |
| CN109461576A (en) * | 2018-10-19 | 2019-03-12 | 苏州昇攀新材料技术有限公司 | A kind of novel patch capacitor |
| CN211479864U (en) * | 2020-04-03 | 2020-09-11 | 兰州文理学院 | Solid-state super capacitor |
| CN212648074U (en) * | 2020-07-14 | 2021-03-02 | 江西明南科技有限公司 | Resistance to compression type aluminium electrolytic capacitor |
| CN213124163U (en) * | 2020-10-04 | 2021-05-04 | 常州旷晶电子有限公司 | Heat dissipation type paster aluminum electrolytic capacitor |
| CN213660210U (en) * | 2020-10-22 | 2021-07-09 | 龙岩金汇莱电子有限公司 | High-voltage aluminum electrolytic capacitor resistant to transient overvoltage impact |
| CN216528441U (en) * | 2021-11-08 | 2022-05-13 | 深圳市容乐电子科技有限公司 | High temperature resistant and high withstand voltage paster electric capacity have |
| CN114709081A (en) * | 2022-04-12 | 2022-07-05 | 南通飞泰电子科技有限公司 | High-capacity low-voltage chip type laminated aluminum capacitor and preparation method thereof |
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| US9564270B2 (en) * | 2013-12-27 | 2017-02-07 | Tdk Corporation | Thin film capacitor |
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| CN103337363A (en) * | 2013-06-05 | 2013-10-02 | 广西华赣电力设备有限公司 | An energy storage pulse capacitor |
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| CN109461576A (en) * | 2018-10-19 | 2019-03-12 | 苏州昇攀新材料技术有限公司 | A kind of novel patch capacitor |
| CN211479864U (en) * | 2020-04-03 | 2020-09-11 | 兰州文理学院 | Solid-state super capacitor |
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| CN213660210U (en) * | 2020-10-22 | 2021-07-09 | 龙岩金汇莱电子有限公司 | High-voltage aluminum electrolytic capacitor resistant to transient overvoltage impact |
| CN216528441U (en) * | 2021-11-08 | 2022-05-13 | 深圳市容乐电子科技有限公司 | High temperature resistant and high withstand voltage paster electric capacity have |
| CN114709081A (en) * | 2022-04-12 | 2022-07-05 | 南通飞泰电子科技有限公司 | High-capacity low-voltage chip type laminated aluminum capacitor and preparation method thereof |
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| CN115512963A (en) | 2022-12-23 |
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