CN204792439U - LED low pressure high frequency low impedance aluminium electrolytic capacitor - Google Patents
LED low pressure high frequency low impedance aluminium electrolytic capacitor Download PDFInfo
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- CN204792439U CN204792439U CN201520356568.7U CN201520356568U CN204792439U CN 204792439 U CN204792439 U CN 204792439U CN 201520356568 U CN201520356568 U CN 201520356568U CN 204792439 U CN204792439 U CN 204792439U
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- guide pin
- electrolytic capacitor
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- paper tinsel
- aluminium electrolytic
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Abstract
The utility model belongs to the technical field of electrolytic capacitor, especially relate to LED low pressure high frequency low impedance aluminium electrolytic capacitor. LED low pressure high frequency low impedance aluminium electrolytic capacitor, including aluminum hull, positive guide pin, negative guide pin, electrolytic paper, positive pole paper tinsel and negative pole paper tinsel, the aluminum hull contacts with negative guide pin's outer wall, negative guide pin has a liner paper tinsel with the combination department cover of negative pole paper tinsel, and this liner paper tinsel covers the negative guide pin of nail joint department, just, the negative guide pin main part is a columniform conductor, conductor one end is a flat guide card, and the other end of guide pin is the stitch, be equipped with the transition layer between conductor and the flat guide card, the transition layer has the two sides and is triangle -shaped, and the width of transition layer is the same with the width of guide card, and length is the third of guide card. This electrolytic capacitor can shield point discharge and the prevention burr is perforated to effectively prevent the emergence of the short circuit phenomenon that electrolytic capacitor caused because of nail joint unevenness or burr.
Description
Technical field
The utility model belongs to technical field of electrolytic, particularly relates to LED low-voltage high-frequency low impedance aluminium electrolytic capacitor.
Background technology
Along with people are to the enhancing of the consciousness of environmental protection, the low-carbon (LC) such as LED, automotive electronics, environment-friendly products will replace incandescent lamp, how to meet LED, automotive electronics drive circuit hot environment, and electronic devices and components high temperature resistantization will be an indispensable measure.LED, automotive electronics drive circuit, particularly at automobile engine position, during work, environment temperature even reaches 140 DEG C, the usual serviceability temperature of aluminium electrolytic capacitor uses within the scope of-25 DEG C ~+70 DEG C, and when temperature is more than 140 DEG C, the leakage current of capacitor can increase severely, resistance to ripple ability declines rapidly, during work, capacitor caloric value also will increase severely thereupon, and heat directly can make capacitor expansion bulge, affects operating characteristic and the useful life of capacitor.
In addition, owing to carrying out the capacitor core of impregnation electrolyte process likely because installation accuracy is not high, produced and crookedly encountered aluminum hull inwall, and made aluminum hull cause capacitor core to be short-circuited phenomenon.Along with the size of various electronic system, comprise day by day reducing of thickness, other electronic components meet the requirement of this trend substantially, and this also requires that electrolytic capacitor does not lose on the basis of previous level in its performance, and overall dimension is miniaturized further; And due to anode foil voltage be zero, the resistance to reverse withstand voltage deficiency of this kind of capacitor, thus cause resistance to ripple indifferent, in use, easily breaks down and even damages.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of aluminium electrolytic capacitor, this electrolytic capacitor can shield point discharge and the perforation of prevention burr, thus the generation of the short circuit phenomenon effectively preventing electrolytic capacitor from causing because of nail joint out-of-flatness or burr, structure is simple, capacitance volume ratio is larger, and resistance to reverse withstand voltage foot.
To achieve these goals, the technical solution adopted in the utility model is:
LED low-voltage high-frequency low impedance aluminium electrolytic capacitor, comprise aluminum hull, positive guide pin, negative guide pin, electrolytic paper, anode foils and Cathode Foil, described aluminum hull contacts with the outer wall of negative guide pin, and the junction of described negative guide pin and Cathode Foil is coated with a liner paper tinsel, and this liner paper tinsel covers the negative guide pin of nail joint place; Positive and negative guide pin main body is a columniform conductor, described conductor one end is a flat guide card, the other end of guide pin is stitch, transition zone is provided with between described conductor and flat guide card, described transition zone has two sides and is triangle, the width of transition zone is the same with the width of guide card, and length is 1/3rd of guide card.
Further, described capacitor guide pin is provided with protective sleeve, and described protective sleeve is made up of PVC material.
Further, described protective sleeve is provided with connecting hole, and described connecting hole is provided with closed vinyl cover.
Further, described positive guide pin stretch out direction and negative guide pin to stretch out direction contrary.
Further, described liner paper tinsel pastes by cold welding nail joint place that the mode of welding is welded in negative guide pin and Cathode Foil.
Compared with prior art, the beneficial effects of the utility model are:
First; the low-impedance guide needle for aluminium electrolytic capacitor that the utility model provides can contact with electrolyte fully when work; ensure that the high efficiency of energy transforms; being provided with transition zone at guide card and guide pin contact site makes it firmer; ensure that anode and cathode in conjunction with time safety; capacitor guide pin is provided with protective sleeve and guide pin can be avoided to sustain damage at ordinary times, and can not affect the contact between electrode.
Second, the utility model structure is simple, reasonable in design, the overall dimension of electrolytic capacitor can be reduced on the basis that maintenance function and performance do not lose previous level, and by using negative paper tinsel pressurization to make the resistance to reverse voltage ability of capacitor improve, final resistance to ripple ability promotes greatly, better meets the instructions for use of welding machine and these equipment of frequency converter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that schematic diagram is launched in the inside of Fig. 1;
Fig. 3 is the structural representation of guide pin;
In figure: 1, aluminum hull; 2, positive guide pin; 3, negative guide pin; 4, electrolytic paper; 20 guide pin main bodys; 21, anode foils; 31, Cathode Foil; 32, liner paper tinsel; 30, guide card; 40, stitch; 50, transition zone; 60, protective sleeve; 70, connecting hole; 80, vinyl cover is closed.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1 and Fig. 2, LED low-voltage high-frequency low impedance aluminium electrolytic capacitor of the present utility model, comprise aluminum hull 1, positive guide pin 2, negative guide pin 3, electrolytic paper 4, anode foils 21 and Cathode Foil 31, described aluminum hull 1 contacts with the outer wall of negative guide pin 3, described negative guide pin 3 is coated with a liner paper tinsel 32 with the junction of Cathode Foil 31, and this liner paper tinsel 32 covers the negative guide pin 3 of nail joint place.Described positive guide pin 2 stretch out direction and negative guide pin 3 to stretch out direction contrary.Described liner paper tinsel 32 pastes by cold welding nail joint place that the mode of welding is welded in negative guide pin 3 and Cathode Foil 31.
The utility model is owing to pasting by cold welding nail joint place that the mode of welding is welded in negative guide pin 3 and Cathode Foil 31 by liner paper tinsel 32, liner paper tinsel 32 is allowed to cover the raised tip of out-of-flatness place, thus greatly reduce nail joint place impedance, suppress guide pin heating, contribute to the electric charge dispersion at the tip that burr pierces through, effectively prevent the generation of the short circuit phenomenon that electrolytic capacitor causes because of nail joint out-of-flatness or burr, extend the useful life of electrolytic capacitor.
The guide pin that the utility model provides as shown in Figure 3, comprise guide pin main body 20, described guide pin main body 20 is a columniform conductor, described conductor one end is a flat guide card 30, the other end is stitch 40, transition zone 50 is provided with between described guide pin main body 20 and guide card 30, described transition zone 50 has two sides and is triangle, the width of transition zone 50 is the same with the width of guide card, length is 1/3rd of guide card 30, traditional capacitor guide pin and the area of electrolyte contacts little, and guide card with the contact site of guide pin is too soft cause capacitor guide pin anode and cathode to be combined time easily go wrong, in the present embodiment, described conductor one end is a flat guide card 30, described guide card thickness small size is large, and then increase the contact area of guide pin and electrolyte, add the conversion efficiency of energy, it should be noted that, state between guide pin main body 20 and guide card 30 and be provided with transition zone 50, described transition zone 50 has two sides and is triangle, the width of transition zone 50 is the same with the width of guide card, length is 1/3rd of guide card 30, because guide pin main body 20 in the past causes in conjunction with problem the place contacted with guide card 30 is very soft, but guide card 30 and guide pin main body 20 are linked together by triangle by the transition zone in the present embodiment 50, make use of triangle stability, contact site is made to become firmer, avoid the generation of problem.
Described on base; described guide pin main body 20 is provided with protective sleeve 60, and described protective sleeve 60 is made up of PVC material, makes because guide pin is metal; metal long term exposure in atmosphere; easily by the dioxygen oxidation in air, in the present embodiment, guide pin main body 20 is provided with protective sleeve 60; due to the existence of protective sleeve; guide pin and other material have been completely cut off and have come, and protective sleeve 60 to be made up of PVC material be non-conductive property due to PVC material, prevent unnecessary electric discharge.
In addition, described protective sleeve 60 is provided with connecting hole 70, and described connecting hole 70 is provided with closed vinyl cover 80; the contact between guide pin is hampered when protective sleeve 60 works; hamper electric discharge, so described protective sleeve 60 is provided with connecting hole 70, when needs discharge time; unload closed vinyl cover 80; get through the road of the contact between guide pin, in time not needing electric discharge, just closed and close vinyl cover 80; structure is simple, easy to use.
Above are only a kind of embodiment of the present utility model; not in order to limit the utility model; those skilled in the art can make various changes said structure and improve; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1.LED low-voltage high-frequency low impedance aluminium electrolytic capacitor, comprise aluminum hull, positive guide pin, negative guide pin, electrolytic paper, anode foils and Cathode Foil, it is characterized in that: described aluminum hull contacts with the outer wall of negative guide pin, the junction of described negative guide pin and Cathode Foil is coated with a liner paper tinsel, and this liner paper tinsel covers the negative guide pin of nail joint place; Positive and negative guide pin main body is a columniform conductor, described conductor one end is a flat guide card, the other end of guide pin is stitch, transition zone is provided with between described conductor and flat guide card, described transition zone has two sides and is triangle, the width of transition zone is the same with the width of guide card, and length is 1/3rd of guide card.
2. LED low-voltage high-frequency low impedance aluminium electrolytic capacitor as claimed in claim 1, it is characterized in that, described capacitor guide pin is provided with protective sleeve, and described protective sleeve is made up of PVC material.
3. LED low-voltage high-frequency low impedance aluminium electrolytic capacitor as claimed in claim 2, it is characterized in that: described protective sleeve is provided with connecting hole, described connecting hole is provided with closed vinyl cover.
4. LED low-voltage high-frequency low impedance aluminium electrolytic capacitor as claimed in claim 1, is characterized in that: described positive guide pin stretch out direction and negative guide pin to stretch out direction contrary.
5. LED low-voltage high-frequency low impedance aluminium electrolytic capacitor as claimed in claim 1, is characterized in that: described liner paper tinsel pastes by cold welding nail joint place that the mode of welding is welded in negative guide pin and Cathode Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356568.7U CN204792439U (en) | 2015-05-29 | 2015-05-29 | LED low pressure high frequency low impedance aluminium electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356568.7U CN204792439U (en) | 2015-05-29 | 2015-05-29 | LED low pressure high frequency low impedance aluminium electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792439U true CN204792439U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520356568.7U Expired - Fee Related CN204792439U (en) | 2015-05-29 | 2015-05-29 | LED low pressure high frequency low impedance aluminium electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853926A (en) * | 2019-11-15 | 2020-02-28 | 安徽航睿电子科技有限公司 | Aluminum electrolytic capacitor |
-
2015
- 2015-05-29 CN CN201520356568.7U patent/CN204792439U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853926A (en) * | 2019-11-15 | 2020-02-28 | 安徽航睿电子科技有限公司 | Aluminum electrolytic capacitor |
| CN110853926B (en) * | 2019-11-15 | 2022-08-19 | 益阳市宜兴电子有限公司 | Aluminum electrolytic capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20190529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |