CN110571056A - High-frequency low-impedance electrolytic capacitor - Google Patents
High-frequency low-impedance electrolytic capacitor Download PDFInfo
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- CN110571056A CN110571056A CN201910685112.8A CN201910685112A CN110571056A CN 110571056 A CN110571056 A CN 110571056A CN 201910685112 A CN201910685112 A CN 201910685112A CN 110571056 A CN110571056 A CN 110571056A
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- negative pole
- foil
- electrolytic capacitor
- pin
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- 239000003990 capacitor Substances 0.000 title claims abstract description 36
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 239000011888 foil Substances 0.000 claims description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 12
- 229910021389 graphene Inorganic materials 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011889 copper foil Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 claims description 4
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 4
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000008139 complexing agent Substances 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims 2
- 229920002379 silicone rubber Polymers 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229920005560 fluorosilicone rubber Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01G9/022—Electrolytes; Absorbents
-
- 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
- H01G9/022—Electrolytes; Absorbents
- H01G9/035—Liquid electrolytes, e.g. impregnating materials
-
- 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
- H01G9/14—Structural combinations or circuits for modifying, or compensating for, electric characteristics of electrolytic 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
- H01G9/145—Liquid electrolytic capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a high-frequency low-impedance electrolytic capacitor, which comprises an outer shell, wherein the outer shell is of a hollow cylinder structure, a core package is arranged in an inner cavity of the outer shell, the outer shell is in an open shape, an insulating cover plate is arranged at an opening at the upper end of the outer shell, a protective film is covered on the inner side of the insulating cover plate, two through holes are formed in the insulating cover plate, a positive pin and a negative pin are respectively inserted into the two through holes, and the positive pin and the negative pin are respectively and electrically connected with a positive end and a negative end of the core package.
Description
Technical Field
The invention relates to the technical field of electrolytic capacitors, in particular to a high-frequency low-impedance electrolytic capacitor.
Background
An electrolytic capacitor is a capacitor formed by forming a thin oxide layer as a dielectric on the surface of a valve metal such as aluminum, tantalum, niobium, or titanium by an anodic oxidation method, and forming an electrolyte as a cathode. The anode of the electrolytic capacitor usually adopts a corrosion foil or powder sintered block structure, and has the main characteristics of high capacity per unit area and has incomparable advantages compared with other capacitors in the aspects of miniaturization and large capacity. The electrolytic capacitors produced industrially at present are mainly aluminum electrolytic capacitors and tantalum electrolytic capacitors. The conventional electrolytic capacitor has poor high-frequency characteristics, poor corrosion resistance, easy damage and short service life, and therefore, improvement is required.
Disclosure of Invention
The present invention is directed to a high frequency low impedance electrolytic capacitor, which solves the above problems of the prior art.
in order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high frequency low impedance electrolytic capacitor, includes the shell body, the shell body adopts the hollow circular cylinder structure, the core package is installed to the shell body inner chamber, the shell body is the opening form, insulating apron is installed to shell body upper end opening part, the inboard one deck protection film that covers of insulating apron, it has two through-holes to open on the insulating apron, inserts anodal pin and negative pole pin in two through-holes respectively, just anodal pin, negative pole pin respectively with positive terminal, the negative pole end electric connection of core package.
Preferably, the core package includes positive foil, negative pole paper and electrolytic paper, positive foil, negative pole paper and electrolytic paper are around forming the core package, positive foil, negative pole paper all weld as an organic whole through laser beam welding or ultrasonic bonding and anodal pin, negative pole pin, the electrolytic paper is formed by three-layer W165-40 electrolytic paper stack, the electrolytic paper surface has soaked electrolyte.
Preferably, the electrolyte component comprises, by weight, 4-10 parts of gamma-butyrolactone, 3-8 parts of quaternary ammonium salt of carboxylic acid, 2-6 parts of ammonium dihydrogen phosphate, 4-10 parts of a hydration-preventing agent, 2-6 parts of p-nitrobenzoic acid, 1-3 parts of a complexing agent and 2-5 parts of a corrosion inhibitor.
Preferably, the protection film comprises a first graphene layer, a second graphene layer, a copper foil layer and a fluorosilicone rubber layer, and the copper foil layer and the fluorosilicone rubber layer are respectively bonded between the first graphene layer and the second graphene layer.
Preferably, the positive electrode foil is 0.4-0.5 uf/cm2The negative electrode foil was a 2.5 v chemical conversion pressurized negative electrode foil.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention has novel structure design, convenient manufacture, low manufacture cost, low loss, good high-frequency characteristic, high temperature resistance, heat resistance, corrosion resistance and long service life.
(2) The core package adopted by the invention adopts three layers of electrolytic paper, so that the ESR of the capacitor can be effectively reduced, in addition, the electrolyte solution impregnated on the electrolytic paper can effectively prevent the hydration reaction of the aluminum foil, the service life of the electrolytic capacitor is prolonged, the liquid can inhibit the rise of leakage current, the electrolyte can be prevented from generating hydrogen in the using process, the bottom bulging phenomenon of the capacitor is prevented, and the safety of the electrolytic capacitor can be greatly improved.
(3) The protective film adopted by the invention has excellent corrosion resistance, is not easy to damage, and can further prolong the service life of the capacitor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Fig. 2 is a schematic view of the deployment of the core package of the present invention;
Fig. 3 is a cross-sectional view of the protective film of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a high frequency low impedance electrolytic capacitor, includes shell body 1, shell body 1 adopts the hollow circular cylinder structure, core package 2 is installed to 1 inner chamber of shell body, shell body 1 is the opening form, insulating cover plate 3 is installed to 1 upper end opening part of shell body, 3 inboard cover one deck protection films 4 of insulating cover plate, it has two through-holes to open on the insulating cover plate 3, inserts anodal pin 5 and negative pole pin 6 in two through-holes respectively, just anodal pin 5, negative pole pin 6 respectively with the positive terminal of core package 2, negative pole end electric connection.
in the invention, the core package 2 comprises a positive foil 7, a negative foil 8 and electrolytic paper 9, wherein the positive foil 7, the negative foil 8 and the electrolytic paper 9 are wound to form the core package, the positive foil 7 and the negative foil 8 are welded with a positive pin 5 and a negative pin 6 into a whole through laser welding or ultrasonic welding, the electrolytic paper 9 is formed by overlapping three layers of W165-40 electrolytic paper, and the surface of the electrolytic paper 9 is soaked with electrolyte; wherein the positive electrode foil 7 is 0.4-0.5 uf/cm2the negative electrode foil 8 is a 2.5 v chemical conversion pressed negative electrode foil.
In the embodiment, the electrolyte comprises, by weight, 4 parts of gamma-butyrolactone, 3 parts of quaternary ammonium salt of carboxylic acid, 2 parts of ammonium dihydrogen phosphate, 10 parts of a waterproof agent, 6 parts of p-nitrobenzoic acid, 3 parts of a complexing agent, and 2 parts of a corrosion inhibitor.
The core package adopted by the invention adopts three layers of electrolytic paper, so that the ESR of the capacitor can be effectively reduced, in addition, the electrolyte solution impregnated on the electrolytic paper can effectively prevent the hydration reaction of the aluminum foil, the service life of the electrolytic capacitor is prolonged, the liquid can inhibit the rise of leakage current, the electrolyte can be prevented from generating hydrogen in the using process, the bottom bulging phenomenon of the capacitor is prevented, and the safety of the electrolytic capacitor can be greatly improved.
Example two:
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a high frequency low impedance electrolytic capacitor, includes shell body 1, shell body 1 adopts the hollow circular cylinder structure, core package 2 is installed to 1 inner chamber of shell body, shell body 1 is the opening form, insulating cover plate 3 is installed to 1 upper end opening part of shell body, 3 inboard cover one deck protection films 4 of insulating cover plate, it has two through-holes to open on the insulating cover plate 3, inserts anodal pin 5 and negative pole pin 6 in two through-holes respectively, just anodal pin 5, negative pole pin 6 respectively with the positive terminal of core package 2, negative pole end electric connection.
In the invention, the core package 2 comprises a positive foil 7, a negative foil 8 and electrolytic paper 9, wherein the positive foil 7, the negative foil 8 and the electrolytic paper 9 are wound to form the core package, the positive foil 7 and the negative foil 8 are welded with a positive pin 5 and a negative pin 6 into a whole through laser welding or ultrasonic welding, the electrolytic paper 9 is formed by overlapping three layers of W165-40 electrolytic paper, and the surface of the electrolytic paper 9 is soaked with electrolyte; wherein the positive electrode foil 7 is 0.4-0.5 uf/cm2The negative electrode foil 8 is a 2.5 v chemical conversion pressed negative electrode foil.
In the embodiment, the electrolyte comprises 7 parts of gamma-butyrolactone, 6 parts of quaternary ammonium salt of carboxylic acid, 4 parts of ammonium dihydrogen phosphate, 7 parts of waterproof agent, 4 parts of p-nitrobenzoic acid, 2 parts of complexing agent and 4 parts of corrosion inhibitor in parts by weight.
The core package adopted by the invention adopts three layers of electrolytic paper, so that the ESR of the capacitor can be effectively reduced, in addition, the electrolyte solution impregnated on the electrolytic paper can effectively prevent the hydration reaction of the aluminum foil, the service life of the electrolytic capacitor is prolonged, the liquid can inhibit the rise of leakage current, the electrolyte can be prevented from generating hydrogen in the using process, the bottom bulging phenomenon of the capacitor is prevented, and the safety of the electrolytic capacitor can be greatly improved.
In addition, in this embodiment, the protection film 4 includes a first graphene layer 10, a second graphene layer 11, a copper foil layer 12, and a fluorosilicone rubber layer 13, and the copper foil layer 12 and the fluorosilicone rubber layer 13 are respectively bonded between the first graphene layer 10 and the second graphene layer 11. The protective film adopted by the invention has excellent corrosion resistance, is not easy to damage, and can further prolong the service life of the capacitor.
in conclusion, the invention has the advantages of novel structural design, convenient manufacture, low manufacture cost, low loss, good high-frequency characteristic, high temperature resistance, heat resistance, corrosion resistance and long service life.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A high-frequency low-impedance electrolytic capacitor comprising an outer case (1), characterized in that: the utility model discloses a battery core bag, including shell body (1), insulating apron (3) inboard one deck protection film (4) of covering, insulating apron (3) are gone up to open form, shell body (1) upper end opening part is installed to shell body (1) inner chamber, it has two through-holes to open on insulating apron (3), inserts anodal pin (5) and negative pole pin (6) in two through-holes respectively, just anodal pin (5), negative pole pin (6) respectively with anodal end, the negative pole end electric connection of core bag (2).
2. A high-frequency low-impedance electrolytic capacitor as claimed in claim 1, wherein: core package (2) are including positive foil (7), negative pole paper tinsel (8) and electrolytic paper (9), positive foil (7), negative pole paper tinsel (8) and electrolytic paper (9) are convoluteed and are formed the core package, positive foil (7), negative pole paper tinsel (8) all weld as an organic whole through laser welding or ultrasonic bonding and anodal pin (5), negative pole pin (6), electrolytic paper (9) are formed by three-layer W165-40 electrolytic paper stack, electrolytic paper (9) surface has soaked electrolyte.
3. A high-frequency low-impedance electrolytic capacitor as claimed in claim 2, wherein: the electrolyte comprises, by weight, 4-10 parts of gamma-butyrolactone, 3-8 parts of quaternary ammonium salt of carboxylic acid, 2-6 parts of ammonium dihydrogen phosphate, 4-10 parts of a waterproof agent, 2-6 parts of p-nitrobenzoic acid, 1-3 parts of a complexing agent and 2-5 parts of a corrosion inhibitor.
4. A high-frequency low-impedance electrolytic capacitor as claimed in claim 1, wherein: the protective film (4) comprises a first graphene layer (10), a second graphene layer (11), a copper foil layer (12) and a fluorine-silicon rubber layer (13), wherein the copper foil layer (12) and the fluorine-silicon rubber layer (13) are respectively bonded between the first graphene layer (10) and the second graphene layer (11).
5. A high-frequency low-impedance electrolytic capacitor as claimed in claim 2, wherein: the positive electrode foil (7) is 0.4-0.5 uf/cm2The negative electrode foil (8) is a 2.5 v chemical conversion pressurized negative electrode foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685112.8A CN110571056A (en) | 2019-07-27 | 2019-07-27 | High-frequency low-impedance electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685112.8A CN110571056A (en) | 2019-07-27 | 2019-07-27 | High-frequency low-impedance electrolytic capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN110571056A true CN110571056A (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910685112.8A Pending CN110571056A (en) | 2019-07-27 | 2019-07-27 | High-frequency low-impedance electrolytic capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816449A (en) * | 2020-07-10 | 2020-10-23 | 丰宾电子（深圳）有限公司 | Electrolytic capacitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207310744U (en) * | 2017-08-17 | 2018-05-04 | 苏州市新广益电子有限公司 | A kind of etching resistant film |
| CN109273270A (en) * | 2018-11-12 | 2019-01-25 | 黄山振州电子科技股份有限公司 | A kind of low impedance at high frequency electrolytic capacitor |
| CN109291575A (en) * | 2018-08-22 | 2019-02-01 | 中国航发北京航空材料研究院 | A kind of surfacecti proteon type conducing composite material and preparation method thereof |
| CN109722180A (en) * | 2019-01-28 | 2019-05-07 | 深圳市睿晖新材料有限公司 | A kind of mucilage materials with heating conduction and the radiator being made of it |
-
2019
- 2019-07-27 CN CN201910685112.8A patent/CN110571056A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207310744U (en) * | 2017-08-17 | 2018-05-04 | 苏州市新广益电子有限公司 | A kind of etching resistant film |
| CN109291575A (en) * | 2018-08-22 | 2019-02-01 | 中国航发北京航空材料研究院 | A kind of surfacecti proteon type conducing composite material and preparation method thereof |
| CN109273270A (en) * | 2018-11-12 | 2019-01-25 | 黄山振州电子科技股份有限公司 | A kind of low impedance at high frequency electrolytic capacitor |
| CN109722180A (en) * | 2019-01-28 | 2019-05-07 | 深圳市睿晖新材料有限公司 | A kind of mucilage materials with heating conduction and the radiator being made of it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816449A (en) * | 2020-07-10 | 2020-10-23 | 丰宾电子（深圳）有限公司 | Electrolytic capacitor |
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Application publication date: 20191213 |
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