CN110797193B - Long service life's film capacitor - Google Patents
Long service life's film capacitor Download PDFInfo
- Publication number
- CN110797193B CN110797193B CN201911077630.8A CN201911077630A CN110797193B CN 110797193 B CN110797193 B CN 110797193B CN 201911077630 A CN201911077630 A CN 201911077630A CN 110797193 B CN110797193 B CN 110797193B
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- CN
- China
- Prior art keywords
- aluminum shell
- film capacitor
- insulating
- aluminum
- films
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003990 capacitor Substances 0.000 title claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 64
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims abstract description 4
- 239000011888 foil Substances 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 abstract description 12
- 238000003466 welding Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 70
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/258—Temperature compensation means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to the technical field of film capacitors and discloses a film capacitor with long service life, which comprises an aluminum shell, wherein the outer surface of the aluminum shell is sleeved with a heat-shrinkable sleeve, the inner wall of the aluminum shell is fixedly provided with a radiating fin, the top and the bottom of the aluminum shell are respectively clamped with a rubber sealing plug matched with the aluminum shell, and two insulating films are movably arranged in the aluminum shell. This long service life's film capacitor, it is the hollow cask shape in top and bottom to have set up the aluminium system shell, and evenly scribble on the inner wall of aluminium system shell and be equipped with corrosion-resistant coating, the fin is aluminium system fan heat piece, and fin equidistance welding is on the inner wall of aluminium system shell, can effectively improve equipment's radiating efficiency, the inside loss of capacitor equipment has been avoided, current film capacitor has been solved and has had the too high radiating problem of being convenient for of inside temperature when using, seriously influence the life's of equipment problem.
Description
Technical Field
The invention relates to the technical field of film capacitors, in particular to a film capacitor with long service life.
Background
The capacitor is composed of two electrodes and a dielectric material between the two electrodes, wherein the dielectric material is a dielectric medium, when the capacitor is placed in an electric field between two parallel polar plates with equal amounts of opposite charges, polarization charges are generated on the surface of the dielectric medium due to polarization, so that the charges bound on the polar plates are correspondingly increased, and the potential difference between the polar plates is kept unchanged, which is the reason for the capacitance characteristic of the capacitor.
The film capacitor can be divided into a winding type, a laminated type and an inner series type according to the structure, and can be divided into a metal film, a metal foil and a film foil composite structure according to the electrode, but the existing film capacitor has the problem that the internal temperature is too high and heat dissipation is not convenient when in use, and the service life of equipment is seriously influenced, so that the film capacitor with long service life is provided to solve the problem provided in the above.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the film capacitor with long service life, which has the advantages of good heat dissipation effect, long service life and the like, and solves the problems that the internal temperature is too high and heat dissipation is inconvenient to realize when the existing film capacitor is used, and the service life of equipment is seriously influenced.
(II) technical scheme
In order to achieve the purposes of good heat dissipation effect and long service life, the invention provides the following technical scheme: the utility model provides a long service life's film capacitor, includes aluminium system shell, the surface of aluminium system shell has cup jointed heat shrinkage bush, fixed mounting has the fin on the inner wall of aluminium system shell, the top and the equal joint in bottom of aluminium system shell have with the rubber sealing plug of aluminium system shell looks adaptation, the inside movable mounting of aluminium system shell has two insulating film, two the crossing fixed mounting of department of insulating film has the connection sheetmetal, one side fixed mounting that is close to insulating film of connection sheetmetal has the guide pin of being connected corresponding with insulating film, two the equal fixedly connected with foil membrane in one side of aluminium system shell is kept away from to insulating film, two the equal fixed mounting in inside of insulating film has the electrolytic paper film, two the equal fixed mounting in inside of insulating film has the knot strip of leading of connecting foil membrane and electrolytic paper film, openly insulating film's top fixed mounting runs through rubber and the sealing plug extends to the outside positive pole of aluminium system shell And a cathode lead wire which penetrates through the rubber sealing plug and extends to the outside of the aluminum shell is fixedly mounted at the bottom of the insulating film on the back surface of the aluminum shell.
Preferably, the aluminum shell is in a cylindrical shape with a hollow top and a hollow bottom, and the inner wall of the aluminum shell is uniformly coated with the corrosion-resistant coating.
Preferably, the anode lead wire, the cathode lead wire and the electrolytic paper film are all connected in a welding mode.
Preferably, a sealing ring is fixedly mounted on one side of each of the two rubber sealing plugs close to the aluminum shell.
Preferably, the heat-shrinkable sleeve is made of heat-shrinkable plastic, and the outer surface of the heat-shrinkable sleeve is sprayed with model parameters.
Preferably, the radiating fins are aluminum radiating fins, and the radiating fins are welded on the inner wall of the aluminum shell at equal intervals.
Preferably, there are two electrolytic paper films, and the two insulating films are mutually wound and intersected.
Preferably, the two insulating films are made of one of polyethylene, polypropylene and polystyrene.
Preferably, the two metal foil films are an anode foil and a cathode foil respectively, and both the two metal foil films are metal spraying motors.
(III) advantageous effects
Compared with the prior art, the invention provides a film capacitor with long service life, which has the following beneficial effects:
the film capacitor with long service life has two electrolytic paper films, and the two insulating films are mutually wound and intersected, and one sides of the two insulating films far away from the aluminum shell are fixedly connected with metal foil films, electrolytic paper films are fixedly arranged inside the two insulating films, the two metal foil films are respectively an anode foil and a cathode foil, so that the anode foil and the cathode foil are mutually configured, meanwhile, the aluminum shell is in a hollow barrel shape with the top and the bottom being hollow, the inner wall of the aluminum shell is uniformly coated with the corrosion-resistant coating, the radiating fins are aluminum fan-shaped fins, and the radiating fins are welded on the inner wall of the aluminum shell at equal intervals, so that the radiating efficiency of the device can be effectively improved, the loss inside the capacitor device is avoided, and the problems that the internal temperature of the existing thin-film capacitor is too high and the heat radiation is not convenient when the thin-film capacitor is used and the service life of the device is seriously influenced are solved.
Drawings
FIG. 1 is a schematic cross-sectional view of a long-life thin film capacitor according to the present invention;
FIG. 2 is a schematic top view of a long-life thin film capacitor according to the present invention;
fig. 3 is a schematic diagram of the connection of the insulating film of the film capacitor with long service life according to the present invention.
In the figure: 1 aluminum shell, 2 radiating fins, 3 insulating films, 4 electrolytic paper films, 5 anode lead wires, 6 connecting lead pins, 7 connecting metal sheets, 8 conducting bars, 9 metal foil films, 10 cathode lead wires, 11 heat-shrinkable sleeves and 12 rubber sealing plugs.
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.
Referring to fig. 1-3, a film capacitor with a long service life comprises an aluminum housing 1, the aluminum housing 1 is in a cylindrical shape with a hollow top and a hollow bottom, an inner wall of the aluminum housing 1 is uniformly coated with an anti-corrosion coating, an outer surface of the aluminum housing 1 is sleeved with a heat-shrinkable sleeve 11, the heat-shrinkable sleeve 11 is made of heat-shrinkable plastic, the outer surface of the heat-shrinkable sleeve 11 is coated with model parameters, an inner wall of the aluminum housing 1 is fixedly provided with a heat sink 2, the heat sink 2 is an aluminum fan-heat plate, the heat sink 2 is welded to the inner wall of the aluminum housing 1 at equal intervals, the top and the bottom of the aluminum housing 1 are respectively clamped with a rubber sealing plug 12 adapted to the aluminum housing 1, one side of the two rubber sealing plugs 12 close to the aluminum housing 1 is fixedly provided with a sealing ring, two insulating films 3 are movably mounted inside the aluminum housing 1, a connecting metal sheet, a connecting pin 6 corresponding to the insulating film 3 is fixedly arranged on one side of the connecting metal sheet 7 close to the insulating film 3, metal foil films 9 are fixedly connected on one sides of the two insulating films 3 far away from the aluminum shell 1, the two metal foil films 9 are respectively an anode foil and a cathode foil, the two metal foil films 9 are metal spray electrodes, two electrolytic paper films 4 are fixedly arranged inside the two insulating films 3, the two electrolytic paper films 4 are mutually wound and intersected, the two insulating films 3 are made of one of polyethylene, polypropylene and polystyrene, conducting strips 8 for connecting the metal foil films 9 and the electrolytic paper films 4 are fixedly arranged inside the two insulating films 3, an anode lead-out wire 5 which penetrates through a rubber sealing plug 12 and extends to the outside of the aluminum shell 1 is fixedly arranged at the top of the front insulating film 3, the anode lead wire 5, the cathode lead wire 10 and the electrolytic paper film 4 are all connected in a welding mode, and the cathode lead wire 10 which penetrates through the rubber sealing plug 12 and extends to the outside of the aluminum shell 1 is fixedly installed at the bottom of the back insulating film 3.
To sum up, the film capacitor with long service life has two electrolytic paper films 4, the two insulating films 3 are mutually wound and intersected, one sides of the two insulating films 3 far away from the aluminum shell 1 are fixedly connected with metal foil films 9, the electrolytic paper films 4 are fixedly arranged inside the two insulating films 3, the two metal foil films 9 are respectively an anode foil and a cathode foil, so that the anode foil and the cathode foil are mutually configured, the aluminum shell 1 is arranged to be in a hollow barrel shape with a hollow top and a hollow bottom, the inner wall of the aluminum shell 1 is uniformly coated with an anti-corrosion coating, the radiating fins 2 are aluminum radiating fins, and the radiating fins 2 are equidistantly welded on the inner wall of the aluminum shell 1, so that the radiating efficiency of the device can be effectively improved, the loss of the films inside the capacitor device is avoided, and the problem that the internal temperature of the existing film capacitor is too high and the heat radiation is inconvenient when in use is solved, the service life of the equipment is seriously influenced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A long-life film capacitor, comprising an aluminum housing (1), characterized in that: the outer surface of the aluminum shell (1) is sleeved with a heat-shrinkable sleeve (11), a radiating fin (2) is fixedly mounted on the inner wall of the aluminum shell (1), a rubber sealing plug (12) matched with the aluminum shell (1) is clamped at the top and the bottom of the aluminum shell (1), two insulating films (3) are movably mounted inside the aluminum shell (1), a connecting metal sheet (7) is fixedly mounted at the intersection of the insulating films (3), a connecting leading needle (6) corresponding to the insulating film (3) is fixedly mounted at one side, close to the insulating film (3), of the connecting metal sheet (7), a metal foil film (9) is fixedly connected at one side, far away from the aluminum shell (1), of the two insulating films (3), and an electrolytic paper film (4) is fixedly mounted inside the insulating film (3), a conducting and binding strip (8) for connecting a metal foil membrane (9) and an electrolytic paper membrane (4) is fixedly arranged inside each of the two insulating membranes (3), an anode lead-out wire (5) which penetrates through a rubber sealing plug (12) and extends to the outside of the aluminum shell (1) is fixedly arranged at the top of each insulating membrane (3), and a cathode lead-out wire (10) which penetrates through the rubber sealing plug (12) and extends to the outside of the aluminum shell (1) is fixedly arranged at the bottom of each insulating membrane (3); the number of the electrolytic paper films (4) is two, and the two insulating films (3) are mutually wound and intersected.
2. A long-life film capacitor as claimed in claim 1, wherein: the aluminum shell (1) is in a hollow barrel shape with the top and the bottom being hollow, and the inner wall of the aluminum shell (1) is uniformly coated with a corrosion-resistant coating.
3. A long-life film capacitor as claimed in claim 1, wherein: the anode lead wire (5), the cathode lead wire (10) and the electrolytic paper film (4) are all welded.
4. A long-life film capacitor as claimed in claim 1, wherein: and sealing rings are fixedly arranged on one sides of the two rubber sealing plugs (12) close to the aluminum shell (1).
5. A long-life film capacitor as claimed in claim 1, wherein: the heat-shrinkable sleeve (11) is made of heat-shrinkable plastic, and model parameters are sprayed on the outer surface of the heat-shrinkable sleeve (11).
6. A long-life film capacitor as claimed in claim 1, wherein: the radiating fins (2) are aluminum radiating fins, and the radiating fins (2) are welded on the inner wall of the aluminum shell (1) at equal intervals.
7. A long-life film capacitor as claimed in claim 1, wherein: the two insulating films (3) are made of one of polyethylene, polypropylene and polystyrene.
8. A long-life film capacitor as claimed in claim 1, wherein: the two metal foil films (9) are respectively an anode foil and a cathode foil, and the two metal foil films (9) are metal spraying electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077630.8A CN110797193B (en) | 2019-11-06 | 2019-11-06 | Long service life's film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077630.8A CN110797193B (en) | 2019-11-06 | 2019-11-06 | Long service life's film capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110797193A CN110797193A (en) | 2020-02-14 |
| CN110797193B true CN110797193B (en) | 2021-05-28 |
Family
ID=69442886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911077630.8A Active CN110797193B (en) | 2019-11-06 | 2019-11-06 | Long service life's film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110797193B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222566A (en) * | 2010-03-11 | 2011-10-19 | 三洋电机株式会社 | Electrolytic capacitor and method of manufacturing the same |
| JP2013153115A (en) * | 2012-01-26 | 2013-08-08 | Toyota Motor Corp | Metalization film capacitor |
| CN206574606U (en) * | 2017-02-24 | 2017-10-20 | 深圳市杰容电子科技有限公司 | It is a kind of be easy to series connection exempt from fuse aluminium electrolutic capacitor |
| CN208507478U (en) * | 2018-07-19 | 2019-02-15 | 苏州科商兴达知识产权代理有限公司 | A kind of nanometer of foil produces electrolytic capacitor |
-
2019
- 2019-11-06 CN CN201911077630.8A patent/CN110797193B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222566A (en) * | 2010-03-11 | 2011-10-19 | 三洋电机株式会社 | Electrolytic capacitor and method of manufacturing the same |
| JP2013153115A (en) * | 2012-01-26 | 2013-08-08 | Toyota Motor Corp | Metalization film capacitor |
| CN206574606U (en) * | 2017-02-24 | 2017-10-20 | 深圳市杰容电子科技有限公司 | It is a kind of be easy to series connection exempt from fuse aluminium electrolutic capacitor |
| CN208507478U (en) * | 2018-07-19 | 2019-02-15 | 苏州科商兴达知识产权代理有限公司 | A kind of nanometer of foil produces electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110797193A (en) | 2020-02-14 |
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| CB02 | Change of applicant information |
Address after: 225600 Daizhuang Road, Gaoyou town, Gaoyou City, Yangzhou City, Jiangsu Province Applicant after: Jiangsu high energy rongchuang Electric Co.,Ltd. Applicant after: YANGZHOU KAIPU ELECTRONICS Co.,Ltd. Address before: 225600 Daizhuang Road, Gaoyou town, Gaoyou City, Yangzhou City, Jiangsu Province Applicant before: Yangzhou Kaipu Technology Co.,Ltd. Applicant before: YANGZHOU KAIPU ELECTRONICS Co.,Ltd. |
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