CN110581024A - Vibration-proof aluminum electrolytic capacitor - Google Patents
Vibration-proof aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN110581024A CN110581024A CN201910905552.XA CN201910905552A CN110581024A CN 110581024 A CN110581024 A CN 110581024A CN 201910905552 A CN201910905552 A CN 201910905552A CN 110581024 A CN110581024 A CN 110581024A
- Authority
- CN
- China
- Prior art keywords
- vibration
- rubber plug
- shell
- electrolytic capacitor
- proof
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 39
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 36
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000011888 foil Substances 0.000 claims description 28
- 238000012856 packing Methods 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 abstract description 3
- 210000001624 hip Anatomy 0.000 description 10
- 239000003792 electrolyte Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 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
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 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
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
A vibration-proof aluminum electrolytic capacitor comprises a shell, a core package and a rubber plug, wherein the core package is arranged in the shell in a sealing way through the rubber plug, and a rubber plug sealing beam waist and a vibration-proof beam waist for fixing the core package are arranged on the shell; the rubber plug sealing beam waist is arranged on the shell in the middle of the rubber plug and extrudes the rubber plug; the anti-vibration girdling is arranged on the shell at the joint of the rubber plug and the core package, and the anti-vibration girdling extrudes the rubber plug upwards and extrudes and fixes the core package downwards. The aluminum electrolytic capacitor can fix the core cladding through the anti-vibration girdling; the anti-vibration girdling is arranged at the gap position between the rubber plug and the core package, so that the anti-vibration girdling cannot form transitional extrusion on the core package, and the core package is protected.
Description
Technical Field
The invention relates to an aluminum electrolytic capacitor, in particular to an aluminum electrolytic capacitor with good vibration-proof performance.
Background
Aluminum electrolytic capacitor mainly used filtering, bypass, coupling, specific application is very extensive, under some vibration environment, for example the application on the automotive electronics, aluminum electrolytic capacitor appears easily because the performance that the vibration caused is unstable, the influence of vibration to aluminum electrolytic capacitor is mainly that the core package is under the condition of rocking, positive pole guide pin and negative pole guide pin are owing to fixing on the rubber plug, will produce the moment of torsion and appear the condition that the crack appears or directly twist-off on positive pole guide pin and the negative pole guide pin when core package rocks like this, thereby make the condenser inefficacy. Meanwhile, under the condition of serious shaking, the short circuit of the anode and the cathode inside the capacitor even occurs, or the anode and the aluminum shell are ignited to cause the failure of the capacitor. In this application environment, high reliability and stability of the capacitor under vibration conditions must be ensured.
Application No.: 201610710988.X, a vibration-resistant aluminum electrolytic capacitor; application No.: 201620927801.7, a waist-tied vibration-resistant aluminum electrolytic capacitor; the technical scheme of the two patents well solves the problems, but the two patents directly fix the core bag by the girdling, so that the core bag is easily extruded from transition when the girdling is carried out, and once the core bag is extruded and transited, the stress of the anode foil and the cathode foil is caused, so that the short circuit, the deformation of the core bag and other adverse effects are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a vibration-proof aluminum electrolytic capacitor capable of protecting a core cladding.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a vibration-proof aluminum electrolytic capacitor comprises a shell, a core package and a rubber plug, wherein the core package is arranged in the shell in a sealing way through the rubber plug, and a rubber plug sealing beam waist and a vibration-proof beam waist for fixing the core package are arranged on the shell; the rubber plug sealing beam waist is arranged on the shell in the middle of the rubber plug and extrudes the rubber plug; the anti-vibration beam waist is arranged on the shell at the joint of the rubber plug and the core package, and the anti-vibration beam waist upwards extrudes the rubber plug and downwards extrudes and fixes the core package.
In the above vibration-proof aluminum electrolytic capacitor, preferably, the electrolytic paper protrudes from the upper portion of the core pack, and the vibration-proof corset presses the electrolytic paper protruding from the upper portion of the core pack.
In the above vibration-proof aluminum electrolytic capacitor, preferably, at least one layer of electrolytic paper is wound around the outer layer of the core pack.
In the above vibration-proof aluminum electrolytic capacitor, preferably, the core pack has an electrolytic paper extending out from the lower portion thereof, and the extending electrolytic paper is stained with an adhesive.
In the above vibration-proof aluminum electrolytic capacitor, preferably, a packing paper is disposed between the bottom of the core pack and the inner bottom of the outer shell, and a through hole is disposed in the middle of the packing paper.
In the above vibration-proof aluminum electrolytic capacitor, preferably, the explosion-proof valve at the bottom of the core package is disposed at the position of the casing corresponding to the through hole of the packing paper.
Preferably, in the vibration-proof aluminum electrolytic capacitor, the shape of the packing paper and the bottom of the housing are both circular, and the diameter of the packing paper is 0-2mm smaller than the diameter inside the housing.
In the above vibration-proof aluminum electrolytic capacitor, preferably, the width of the anode foil is wider than the width of the cathode foil, and the two side edges of the cathode foil are located inside the two side edges of the anode foil; the two end edges of the cathode foil are positioned at the inner sides of the two end edges of the anode foil.
Compared with the prior art, the invention has the advantages that: the aluminum electrolytic capacitor can fix the core cladding through the anti-vibration girdling; the anti-vibration girdling is arranged at the gap position between the rubber plug and the core package, so that the anti-vibration girdling cannot form transitional extrusion on the core package, and the core package is protected.
Drawings
Fig. 1 is a schematic structural view of the vibration-proof aluminum electrolytic capacitor in example 1.
Fig. 2 is a schematic sectional structure view of the vibration-proof aluminum electrolytic capacitor in example 1.
Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.
Fig. 4 is a schematic view of the core pack of example 1 after being unfolded.
Fig. 5 is a schematic view of the core pack of example 2 after being unfolded.
Fig. 6 is a schematic sectional view showing the structure of the vibration-proof aluminum electrolytic capacitor provided with the packing in example 3.
Fig. 7 is a schematic structural view of a packing paper in example 3.
FIG. 8 is a schematic view showing the core pack of example 4 after being unfolded.
Description of the figures
1. A housing; 2. a core package; 3. a rubber plug; 4. sealing the corset; 5. vibration-proof corset; 6. an anode foil; 7. electrolyzing paper; 8. a cathode foil; 9. packing paper; 10. an anode guide pin; 11. a cathode guide pin; 12. and a through hole.
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
A vibration-proof aluminum electrolytic capacitor comprises a shell 1, a core package 2 and a rubber plug 3, wherein the core package 2 is hermetically arranged in the shell 1 through the rubber plug 3, and a rubber plug 3 sealing beam waist 4 and a vibration-proof beam waist 5 for fixing the core package 2 are arranged on the shell 1; the rubber plug 3 is provided with a sealing beam 4 on the shell 1 in the middle of the rubber plug 3, and the rubber plug 3 is extruded by the sealing beam 4; the anti-vibration girdling 5 is arranged on the shell 1 at the joint of the rubber plug 3 and the core package 2, and the anti-vibration girdling 5 extrudes the rubber plug 3 upwards and extrudes and fixes the core package 2 downwards. The core package 2 is formed by winding an anode foil 6, electrolytic paper 7 and a cathode foil 8, and an anode guide pin 10 and a cathode guide pin 11 are respectively riveted on the anode foil 6 and the cathode foil 8; the anode guide pin 10 and the cathode guide pin 11 penetrate through the guide pin through holes on the rubber plug 3; the rubber plug 3 is pressed and sealed on the anode guide pin 10 and the cathode guide pin 11 under the extrusion of the rubber plug 3 sealing beam waist 4.
In the present embodiment, the sealing corset 4 of the rubber stopper 3 is first completed, and then the molding of the vibration-proof corset 5 is performed, the groove width of the vibration-proof corset 5 being smaller than that of the sealing corset 4. The anti-vibration girdling 5 is arranged on the shell 1 at the joint of the rubber plug 3 and the core package 2, and the anti-vibration girdling 5 extrudes the rubber plug 3 upwards and extrudes and fixes the core package 2 downwards. In the present embodiment, the distance between the upper end of the core pack 2 and the rubber stopper 3 is larger than that of the conventional capacitor, so as to facilitate the setting of the vibration-proof corset 5. After the anti-vibration girdling 5 is arranged, the core package 2 can be propped downwards, so that in a vibration environment, the core package 2 can shake less in the shell 1, the core package 2 can shake less, and the torque generated on the anode guide pin 10 and the cathode guide pin 11 is small or even can not be generated; thereby improving the vibration-proof performance of the aluminum electrolytic capacitor. In this embodiment, two seal waists may be provided on the rubber plug in order to improve the sealing performance of the seal waists.
In this embodiment, the electrolytic paper 7 is protruded from the upper part of the core pack 2, and the vibration-proof corset 5 presses the electrolytic paper 7 protruded from the upper part of the core pack 2. The outer layer of the core package 2 is wrapped with at least one layer of electrolytic paper 7.
The aluminum electrolytic capacitor of the present embodiment can fix the core pack 2 by the vibration-proof girdling 5; the anti-vibration girdling 5 is arranged at the gap position between the rubber plug 3 and the core package 2, so that the anti-vibration girdling 5 cannot form transitional extrusion on the core package 2, and the core package 2 is protected.
Example 2
In this embodiment, the electrolytic paper 7 is protruded from the lower part of the core pack 2, and the protruded electrolytic paper 7 is stained with the adhesive glue. In this embodiment, the adhesive glue is one or more of polyvinyl alcohol, ethyl acetate, butyl acrylate, isooctyl acrylate, and acrylic acid; meanwhile, a certain amount of electrolyte can be added into the adhesive glue, and the weight of the electrolyte cannot exceed one half of the total weight of the adhesive glue. The electrolyte can be added to supplement the electrolyte in the core package 2 to a certain extent. In this embodiment, the adhesive is preferably in a gel state when being applied to the core package 2, and after being applied to the core package 2, the adhesive is cured to a certain extent, that is, semi-cured, but the cured adhesive needs to have viscosity, and after being installed in the housing 1, the adhesive can be applied to the bottom of the housing 1 or the packing paper 9 arranged at the bottom of the housing 1. The cured adhesive glue needs to be non-flowing on the bottom of the core package 2 and at the same time be tacky.
Example 3
In the embodiment, a packing paper 9 is arranged between the bottom of the core bag 2 and the inner bottom of the outer shell 1, and a through hole 12 is arranged in the middle of the packing paper 9. The explosion-proof valve at the bottom of the core bag 2 is arranged at the position of the shell 1 corresponding to the through hole 12 of the packing paper 9. The shape of the packing paper 9 and the bottom of the shell 1 are both circular, and the diameter of the packing paper 9 is 0-2mm smaller than the diameter of the inside of the shell 1. In this embodiment, the material of the packing paper 9 is the material of the electrolytic paper 7, and the arrangement of the packing paper 9 relative to the metal material of the casing 1 can make the bonding and gluing of the bottom of the core package 2 more firm. The through holes 12 on the packing paper 9 can eliminate the influence of the packing paper 9 on the explosion-proof valve, namely, the function of the explosion-proof valve is not influenced. In this embodiment, when the bottom of the core pack 2 is adhered with the adhesive, the bottom of the core pack 2 cannot be completely covered with the adhesive, and a gap needs to be left; otherwise, the gas pressure generated in the core bag 2 due to various reasons cannot directly act on the explosion-proof valve, thereby influencing the opening of the explosion-proof valve. The other portions of this example are the same as example 1.
Example 4
In the present embodiment, the width of the anode foil 6 is wider than the width of the cathode foil 8, and both side edges of the cathode foil 8 are located inside both side edges of the anode foil 6; both end edges of the cathode foil 8 are positioned inside both end edges of the anode foil 6. In the present embodiment, the arrangement is such that the burrs on the edge of the anode foil 6 do not contact the cathode foil 8 after piercing the electrolytic paper 7 and causing a short circuit. The other portions of this example are the same as example 1.
Claims (8)
1. A vibration-proof aluminum electrolytic capacitor is characterized in that: the core bag is arranged in the shell in a sealing way through the rubber plug, and the shell is provided with a rubber plug sealing beam waist and a vibration-proof beam waist for fixing the core bag; the rubber plug sealing beam waist is arranged on the shell in the middle of the rubber plug and extrudes the rubber plug; the anti-vibration beam waist is arranged on the shell at the joint of the rubber plug and the core package, and the anti-vibration beam waist upwards extrudes the rubber plug and downwards extrudes and fixes the core package.
2. The vibration-proof aluminum electrolytic capacitor according to claim 1, characterized in that: the electrolytic paper extends out of the upper part of the core bag, and the vibration-proof beam waist extrudes the electrolytic paper extending out of the upper part of the core bag.
3. The vibration-proof aluminum electrolytic capacitor according to claim 2, characterized in that: at least one layer of electrolytic paper is wound on the outer layer of the core package.
4. The vibration-proof aluminum electrolytic capacitor according to claim 2, characterized in that: the lower part of the core bag is provided with an electrolytic paper extending out, and the extending electrolytic paper is stained with adhesive glue.
5. The vibration-proof aluminum electrolytic capacitor according to any one of claims 1 to 4, characterized in that: packing paper is arranged between the bottom of the core bag and the inner bottom of the outer shell, and a through hole is formed in the middle of the packing paper.
6. The vibration-proof aluminum electrolytic capacitor according to claim 5, characterized in that: the explosion-proof valve at the bottom of the core bag is arranged at the position of the shell corresponding to the paper packing through hole.
7. The vibration-proof aluminum electrolytic capacitor according to claim 5, characterized in that: the shape of the packing paper and the bottom of the shell are both circular, and the diameter of the packing paper is 0-2mm smaller than that of the inside of the shell.
8. The vibration-proof aluminum electrolytic capacitor according to any one of claims 1 to 4, characterized in that: the width of the anode foil is wider than that of the cathode foil, and two side edges of the cathode foil are positioned on the inner sides of two side edges of the anode foil; the two end edges of the cathode foil are positioned at the inner sides of the two end edges of the anode foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910905552.XA CN110581024A (en) | 2019-09-24 | 2019-09-24 | Vibration-proof aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910905552.XA CN110581024A (en) | 2019-09-24 | 2019-09-24 | Vibration-proof aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110581024A true CN110581024A (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910905552.XA Pending CN110581024A (en) | 2019-09-24 | 2019-09-24 | Vibration-proof aluminum electrolytic capacitor |
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| Country | Link |
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| CN (1) | CN110581024A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203932222U (en) * | 2014-04-01 | 2014-11-05 | 谭轶鸿 | Lithium ion battery |
| CN206806456U (en) * | 2017-05-22 | 2017-12-26 | 湖南华慧新能源股份有限公司 | The lithium ion battery that a kind of high-capacity positive negative pole is drawn in the same direction |
| CN207529820U (en) * | 2017-11-03 | 2018-06-22 | 益阳阳光电子科技有限公司 | A kind of aluminium electrolutic capacitor |
| CN110112000A (en) * | 2019-05-23 | 2019-08-09 | 湖南艾华集团股份有限公司 | A kind of solid-state aluminum electrolytic capacitor of novel vibration resistant and preparation method thereof |
| CN210722778U (en) * | 2019-09-24 | 2020-06-09 | 湖南艾华集团股份有限公司 | Vibration-proof aluminum electrolytic capacitor |
-
2019
- 2019-09-24 CN CN201910905552.XA patent/CN110581024A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203932222U (en) * | 2014-04-01 | 2014-11-05 | 谭轶鸿 | Lithium ion battery |
| CN206806456U (en) * | 2017-05-22 | 2017-12-26 | 湖南华慧新能源股份有限公司 | The lithium ion battery that a kind of high-capacity positive negative pole is drawn in the same direction |
| CN207529820U (en) * | 2017-11-03 | 2018-06-22 | 益阳阳光电子科技有限公司 | A kind of aluminium electrolutic capacitor |
| CN110112000A (en) * | 2019-05-23 | 2019-08-09 | 湖南艾华集团股份有限公司 | A kind of solid-state aluminum electrolytic capacitor of novel vibration resistant and preparation method thereof |
| CN210722778U (en) * | 2019-09-24 | 2020-06-09 | 湖南艾华集团股份有限公司 | Vibration-proof aluminum electrolytic capacitor |
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