CN207529820U - A kind of aluminium electrolutic capacitor - Google Patents

A kind of aluminium electrolutic capacitor Download PDF

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Publication number
CN207529820U
CN207529820U CN201721455018.6U CN201721455018U CN207529820U CN 207529820 U CN207529820 U CN 207529820U CN 201721455018 U CN201721455018 U CN 201721455018U CN 207529820 U CN207529820 U CN 207529820U
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CN
China
Prior art keywords
anode
foil
rubber stopper
aluminium
core packet
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.)
Expired - Fee Related
Application number
CN201721455018.6U
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Chinese (zh)
Inventor
张平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yiyang Sunshine Electronic Technology Co Ltd
Original Assignee
Yiyang Sunshine Electronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yiyang Sunshine Electronic Technology Co Ltd filed Critical Yiyang Sunshine Electronic Technology Co Ltd
Priority to CN201721455018.6U priority Critical patent/CN207529820U/en
Application granted granted Critical
Publication of CN207529820U publication Critical patent/CN207529820U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of aluminium electrolutic capacitor, including aluminium shell-and-core packet, core packet is by rubber stopper seal in aluminum hull;Core packet includes cathode foil, anode foil and electrolytic paper, and being riveted respectively in cathode foil and anode foil has anode guide pin and negative electrode guide needle, and electrolytic paper is located at the centre of cathode foil and anode foil, and is wound into core packet together;Anode guide pin and negative electrode guide needle are each passed through the guide pin through-hole on rubber stopper, the aluminium tongue of anode guide pin and negative electrode guide needle is riveted in cathode foil and anode foil respectively, the aluminium of anode guide pin and negative electrode guide needle stalk is in the guide pin through-hole of rubber stopper, and by rubber stopper crush seal, rubber stopper on the contact surface of aluminium stalk with being provided with Seal Oil;The packing paper that a thickness is 0.3mm 0.8mm is provided between the bottom of aluminum hull and core packet;The contact site of aluminum hull and rubber stopper is provided with sealing and girdles the waist, and it is with a tight waist that fastening is additionally provided on aluminum hull.The aluminium electrolutic capacitor of the utility model is resistance to shake, and air-tightness is good;The appearance of short circuit can be reduced, improves the yield of product.

Description

A kind of aluminium electrolutic capacitor
Technical field
The utility model is related to a kind of capacitor more particularly to a kind of aluminium electrolutic capacitors.
Background technology
Traditional aluminium electrolutic capacitor is wound by 4 layers of overlapping such as anode aluminium foil, electrolytic paper, cathode aluminum foil, electrolytic paper Fuse after fuse is impregnated with electrolyte, is prepared after a group vertical and sleeve pipe, ageing, detecting step.
Aluminium electrolutic capacitor is in aging either in application, being just easy to make extraneous or rubber stopper under the action of electric field The chlorion aggregation of the inside causes to corrode.Simultaneously because it is by crush seal, in this way in aging between guide pin and rubber stopper When due to the electrolyte ebuillition of heated of capacitor internal, the electrolyte of vaporization may be by between rubber stopper and guide pin Gap, which is run out of, has an impact the performance of capacitor.
Utility model content
The technical problems to be solved in the utility model is that overcome the deficiencies of the prior art and provide a kind of air-tightness good, and The resistance to aluminium electrolutic capacitor to shake.
In order to solve the above technical problems, the utility model proposes technical solution be:A kind of aluminium electrolutic capacitor, including aluminium Shell-and-core packet, the core packet is by rubber stopper seal in aluminum hull;The core packet includes cathode foil, anode foil and electrolytic paper, institute Stating in cathode foil and anode foil riveting respectively has anode guide pin and a negative electrode guide needle, and the electrolytic paper is located at cathode foil and anode foil Centre, and it is wound into core packet together;The anode guide pin and negative electrode guide needle are each passed through the guide pin through-hole on rubber stopper, described The aluminium tongue of anode guide pin and negative electrode guide needle is riveted in cathode foil and anode foil respectively, the aluminium stalk position of anode guide pin and negative electrode guide needle In in the guide pin through-hole of rubber stopper, and by rubber stopper crush seal, rubber stopper on the contact surface of aluminium stalk with being provided with sealing Oil;The packing paper that a thickness is 0.3mm-0.8mm is provided between the bottom of the aluminum hull and core packet, is provided on the packing paper Multiple ventholes;In the utility model, packing paper can ensure that the bottom of capacitor core packet will not touch the bottom of aluminum hull, this Sample just reduces possibility short-circuit between core packet and aluminum hull, while packing paper upper vent hole is arranged on capacitor due to abnormal quick-fried When fried, be conducive to the gas outflow of capacitor internal, and when the aluminum casing bottom explosion-proof valve that explodes is opened, packing paper will not run out and make Into accidents such as burnings, the security performance of product is improved.In the utility model, the contact site of aluminum hull and rubber stopper is provided with close Envelope is with a tight waist, and the protrusion that fastening is with a tight waist, and the fastening is girdled the waist as a fixed core packet is additionally provided on the aluminum hull.The protrusion Top is provided with the rubber of one piece of soft texture.In the utility model, the rubber of soft texture can ensure capacitor in protrusion With aluminum hull hard collision will not occur for core packet under vibration, ensure the performance of capacitor under vibration, therefore this practicality is new The capacitor of type is particularly suitable for applying on automobile.In the capacitor of the aluminium electroloysis of the utility model, rubber stopper connects with what aluminium obstructed Seal Oil is provided in contacting surface, generally using silicone oil, since the boiling point of silicone oil is old higher than capacitor in this way when aging Change temperature, the electrolyte vaporized under the sealing of silicone oil would not run out of and influence the performance of capacitor.The presence of silicone oil is also It can prevent extraneous Chloride Attack capacitor internal.
Above-mentioned aluminium electrolutic capacitor, it is preferred that setting is with a tight waist there are two fastening on the aluminum hull, difference fixed core packet Core packet can be completely fixed in aluminum hull by top and bottom by the way that two fastenings are with a tight waist.
Above-mentioned aluminium electrolutic capacitor, it is preferred that the bottom of the rubber stopper is provided with multiple hemispherical bumps, and described half The density of spherical protrusions is every square centimeter for 25-100.In the production process of capacitor, due to the presence of hemispherical bumps, It is point contact that iron filings, which are fallen when on rubber stopper, therefore is very easy to blow off.
Above-mentioned aluminium electrolutic capacitor, it is preferred that the height of the hemispherical bumps is between 0.05-0.5mm;Described half Spherical protrusions are integrally formed with rubber stopper.
Above-mentioned aluminium electrolutic capacitor, it is preferred that two layers of electrolytic paper is provided between the cathode foil and anode foil, and The width of electrolytic paper is more than the width of cathode foil, and the width of cathode foil is more than the width of anode foil, the two sides of the anode foil Edge is located at the inside of cathode foil both sides of the edge, and the both sides of the edge of the cathode foil are located at the inside of electrolytic paper both sides of the edge.This reality In novel, the both sides of the edge of anode foil are located at the inside of cathode foil both sides of the edge, even if the burr thorn at cathode foil edge in this way Having worn electrolytic paper will not contact with anode foil and the phenomenon that short circuit occur.Simultaneously in the utility model, electrolytic paper has two layers, this Sample burr is also not easy to pierce through the generation of the further house short circuit of electrolytic paper.
Above-mentioned aluminium electrolutic capacitor, it is preferred that the winding initiating terminal anode foil of the core packet is located at the inside of cathode foil.
Above-mentioned aluminium electrolutic capacitor, it is preferred that two layers of electrolytic paper is pasted together by adhesive glue.Adhesive glue can To be any one in polyvinyl alcohol, ethyl acetate, butyl acrylate, Isooctyl acrylate monomer and acrylic acid, these materials are all It is the common used material of electrolyte, such adhesive glue would not influence the performance of electrolyte.
Above-mentioned aluminium electrolutic capacitor, it is preferred that the aluminum casing bottom is provided with explosion-proof valve, the venthole on the packing paper Positioned at the top of explosion-proof valve.
Compared with prior art, the utility model has the advantage of:The aluminium electrolutic capacitor of the utility model is resistance to shake, and Air-tightness is good;The appearance of short circuit can be reduced, improves the yield of product.
Description of the drawings
Fig. 1 is the structure diagram of the utility model aluminium electrolutic capacitor.
Fig. 2 is the enlarged structure schematic diagram at A in Fig. 1.
Fig. 3 is the structure diagram of rubber stopper in the utility model.
Fig. 4 is the structure diagram before cathode foil, electrolytic paper and anode foil winding.
Fig. 5 is the structure diagram of packing paper in the utility model.
Marginal data
1st, core packet;2nd, aluminum hull;3rd, cathode foil;4th, electrolytic paper;5th, anode foil;6th, rubber stopper;7th, guide pin through-hole;8th, it seals Oil;9th, venthole;10th, sealing is with a tight waist;11st, fastening is with a tight waist;12nd, it is raised;13rd, the rubber of soft texture;14th, hemispherical bumps; 15th, anode guide pin;16th, negative electrode guide needle;17th, packing paper.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model Work more comprehensively, meticulously describes, but the scope of protection of the utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting among other Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to and limits this practicality Novel protection domain.
Embodiment
A kind of aluminium electrolutic capacitor as Figure 1-Figure 4, including aluminum hull 2 and core packet 1, core packet 1 is sealed by rubber stopper 6 In aluminum hull 2;Core packet 1 includes cathode foil 3, anode foil 5 and electrolytic paper 4, and being riveted respectively in cathode foil 3 and anode foil 5 has anode Guide pin 15 and negative electrode guide needle 16, electrolytic paper 4 are located at the centre of cathode foil 3 and anode foil 5, and are wound into core packet 1 together;Anode Guide pin 15 and negative electrode guide needle 16 are each passed through the aluminium tongue point of the guide pin through-hole 7 on rubber stopper 6, anode guide pin 15 and negative electrode guide needle 16 It is not riveted in cathode foil 3 and anode foil 5, the aluminium stalk of anode guide pin 15 and negative electrode guide needle 16 is located at the guide pin through-hole 7 of rubber stopper 6 It is interior, and by 6 crush seal of rubber stopper, rubber stopper 6 on the contact surface of aluminium stalk with being provided with Seal Oil 8;Aluminum hull 2 and core packet 1 Bottom between be provided with the packing paper 17 that a thickness is 0.3mm-0.8mm, be provided with multiple ventholes 9 on packing paper 17, ventilate Hole 9 is located at the top of 2 explosion-proof valve of aluminum hull.The contact site of aluminum hull 2 and rubber stopper 6 is provided with sealing with a tight waist 10, is also set on aluminum hull 2 It puts there are two fastening with a tight waist 11, two top and bottom for fastening 11 difference fixed core packets 1 with a tight waist.Fastening with a tight waist 11 is solid for one Determine the protrusion 12 of core packet 1;The top of protrusion 12 is provided with the rubber 13 of one piece of soft texture.
In the present embodiment, the bottom of rubber stopper 6 is provided with multiple hemispherical bumps 14, and the density of hemispherical bumps 14 is 25-100 every square centimeter.The height of hemispherical bumps 14 is between 0.05-0.5mm;Hemispherical bumps 14 and rubber stopper 6 one It is body formed.
In the present embodiment, two layers of electrolytic paper is provided between cathode foil 3 and anode foil 5, and the width of electrolytic paper 4 is more than The width of cathode foil 3, the width of cathode foil 3 are more than the width of anode foil 5, and the both sides of the edge of anode foil 5 are located at 3 both sides of cathode foil The inside at edge, the both sides of the edge of cathode foil 3 are located at the inside of 4 both sides of the edge of electrolytic paper.The winding initiating terminal anode foil of core packet 1 5 are located at the inside of cathode foil 3.Two layers of electrolytic paper 4 is pasted together by adhesive glue.
The aluminium electrolutic capacitor of the present embodiment is resistance to shake, and air-tightness is good;The appearance of short circuit can be reduced, improves product Yield.

Claims (8)

1. a kind of aluminium electrolutic capacitor, it is characterised in that:Including aluminium shell-and-core packet, the core packet is by rubber stopper seal in aluminum hull It is interior;The core packet includes cathode foil, anode foil and electrolytic paper, in the cathode foil and anode foil respectively riveting have anode guide pin and Negative electrode guide needle, the electrolytic paper are located at the centre of cathode foil and anode foil, and are wound into core packet together;The anode guide pin and Negative electrode guide needle is each passed through the guide pin through-hole on rubber stopper, and the aluminium tongue of the anode guide pin and negative electrode guide needle is riveted on anode respectively On foil and anode foil, the aluminium stalk of anode guide pin and negative electrode guide needle is squeezed in the guide pin through-hole of rubber stopper by rubber stopper Means of press seals, rubber stopper on the contact surface of aluminium stalk with being provided with Seal Oil;One is provided between the bottom of the aluminum hull and core packet Thickness is the packing paper of 0.3mm-0.8mm, and multiple ventholes are provided on the packing paper;The contact site of the aluminum hull and rubber stopper It is with a tight waist to be provided with sealing, the protrusion that fastening is with a tight waist, and the fastening is girdled the waist as a fixed core packet is additionally provided on the aluminum hull;Institute The top for stating protrusion is provided with the rubber of one piece of soft texture.
2. aluminium electrolutic capacitor according to claim 1, it is characterised in that:There are two fastening beams for setting on the aluminum hull The top and bottom of waist, respectively fixed core packet.
3. aluminium electrolutic capacitor according to claim 1, it is characterised in that:The bottom of the rubber stopper is provided with multiple half Spherical protrusions, the density of the hemispherical bumps are every square centimeter for 25-100.
4. aluminium electrolutic capacitor according to claim 3, it is characterised in that:The height of the hemispherical bumps is 0.05- Between 0.5mm;The hemispherical bumps are integrally formed with rubber stopper.
5. aluminium electrolutic capacitor according to claim 1, it is characterised in that:It is provided between the cathode foil and anode foil Two layers of electrolytic paper, and the width of electrolytic paper is more than the width of cathode foil, and the width of cathode foil is more than the width of anode foil, described The both sides of the edge of anode foil are located at the inside of cathode foil both sides of the edge, and the both sides of the edge of the cathode foil are located at electrolytic paper two sides The inside of edge.
6. aluminium electrolutic capacitor according to claim 5, it is characterised in that:The winding initiating terminal anode foil position of the core packet In the inside of cathode foil.
7. aluminium electrolutic capacitor according to claim 5, it is characterised in that:Two layers of electrolytic paper is by bonding glue Together.
8. aluminium electrolutic capacitor according to claim 1, it is characterised in that:The aluminum casing bottom is provided with explosion-proof valve, institute State the top that the venthole on packing paper is located at explosion-proof valve.
CN201721455018.6U 2017-11-03 2017-11-03 A kind of aluminium electrolutic capacitor Expired - Fee Related CN207529820U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721455018.6U CN207529820U (en) 2017-11-03 2017-11-03 A kind of aluminium electrolutic capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721455018.6U CN207529820U (en) 2017-11-03 2017-11-03 A kind of aluminium electrolutic capacitor

Publications (1)

Publication Number Publication Date
CN207529820U true CN207529820U (en) 2018-06-22

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Family Applications (1)

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CN201721455018.6U Expired - Fee Related CN207529820U (en) 2017-11-03 2017-11-03 A kind of aluminium electrolutic capacitor

Country Status (1)

Country Link
CN (1) CN207529820U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109119249A (en) * 2018-09-14 2019-01-01 丰宾电子(深圳)有限公司 A kind of ox horn aluminium electrolutic capacitor of shockproof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109119249A (en) * 2018-09-14 2019-01-01 丰宾电子(深圳)有限公司 A kind of ox horn aluminium electrolutic capacitor of shockproof

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20180622

Termination date: 20201103