CN201638691U - Explosion-proof and flame-proof structure of electrolytic capacitor - Google Patents
Explosion-proof and flame-proof structure of electrolytic capacitor Download PDFInfo
- Publication number
- CN201638691U CN201638691U CN2009202618840U CN200920261884U CN201638691U CN 201638691 U CN201638691 U CN 201638691U CN 2009202618840 U CN2009202618840 U CN 2009202618840U CN 200920261884 U CN200920261884 U CN 200920261884U CN 201638691 U CN201638691 U CN 201638691U
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- Prior art keywords
- explosion
- proof
- electrolytic capacitor
- capacitor
- flame
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- 239000003990 capacitor Substances 0.000 title claims abstract description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims description 30
- 230000000979 retarding effect Effects 0.000 claims description 28
- 239000004411 aluminium Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000004880 explosion Methods 0.000 abstract description 14
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000003211 malignant effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 18
- 239000003063 flame retardant Substances 0.000 description 17
- 239000003792 electrolyte Substances 0.000 description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 10
- 239000007921 spray Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
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- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The utility model relates to an explosion-proof and flame-proof structure of an electrolytic capacitor, in particular to an explosion-proof and flame-proof structure of an aluminum electrolytic capacitor. The structure is formed in such a way that an explosion-proof part at the bottom of the traditional electrolytic capacitor is provided with an explosion-proof and flame-proof piece with pore structure; and under the extreme condition of the capacitor, pores of a structural member can not change the explosion-proof pressure when internal pressure exceeds explosion-proof pressure of a casing to cause explosion, but stop a core of the capacitor from being exploded outside and prevent the core from contacting outside air, and the core structure can not be changed so that the possibility of generating sparks is greatly reduced. The utility model effectively solves the problems of flame retardancy and explosion-proof safety of the traditional electrolytic capacitor product and overcomes the defect of malignant safety accidents caused by the combustion under the extreme condition of the whole capacitor and can be widely applied to computer mainboards, switch power supplies, audio amplifiers and computer power supplies.
Description
Technical field
The utility model relates to a kind of explosion-proof flame retarding construction of electrolytic capacitor, especially a kind of explosion-proof flame retarding construction of aluminium electrolytic capacitor.
Background technology
Existing electrolytic capacitor does not generally have blast resistance construction, when capacitor excess load outer casing rupture, can cause the electrolyte ejection like this, and the shell fragment easily causes line short; Some electrolytic capacitor with blast resistance construction, all be to adopt to increase explosion-proof groove in the bottom of shell or the side of shell; And mesohigh electrolytic capacitor major part is used in the filtering after the power input rectification, though the reliability in circuit requirement capacitor quality and life-span will guarantee the actual needs of circuit, the explosion-proof condition of explosion-proof groove is to ignite under certain pressure effect, at last explosion-proof groove is opened.But, if because other assembly damages the loading condition that causes being applied to capacitor change (if any revers voltage), or circuit is applied to ripple current on the capacitor, voltage etc. and surpasses the actual rated voltage of bearing of capacitor when real work, the capacitor overwork, can cause capacitor inner heat aggravation, air pressure inside increases, the oxide-film on anode foils surface can be damaged, condenser impedance increases, thereby inner heat further aggravates, air pressure inside increases, when surpass shell bear pressure limit the time, explosion can take place in capacitor.Explosion generally produces in shell explosion-proof valve weak spot, makes inner fuse produce spark and causes fuse to spray back appearance burning outward, damages other electronic devices and components, causes breaking out of fire.Some are also arranged is that outer casing bottom has explosion-proof groove, but still the short circuit problem of the excessive so that excessive All other routes that still have the shell chip to splash and cause of explosion-proof groove cracking of pressure when not solving rupture of case, so fail safe is still not ideal enough.
In actual track, product sparking combustion phenomena can take place in the medium-high voltage aluminum electrolytic capacitor of traditional structure accidentally when explosion, when reason is the product explosion, inner fuse is in high-temperature high-pressure state, when explosion-proof valve is opened, the energy of accumulated inside is produced capacitor body, and when the own energy stored of aluminium foil (Q=CU) was collided at the both positive and negative polarity aluminium foil, energy discharged and to make positive and negative paper tinsel moment because of the discharge generation spark.The electrolyte main material is ethylene glycol and macromolecular material, belongs to combustible, is adsorbed on the electrolytic paper, and electrolytic paper also belongs to combustibles, and fuse can produce the fuse combustion phenomena under the special case situation under the spark effect.Ratio is not very big though the traditional structure capacitor burns when reality is used, in a single day but capacitor burns, can produce even more serious disaster consequence, as burn out complete machine, even even more serious fire incident takes place, harm user's property and life security.So power supply and complete machine producer consider from angle safe in utilization now, the actual demand of flame retardant products is proposed, require capacitor when explosion, can be own fire-retardant.
Summary of the invention
The explosion-proof flame retarding construction of electrolytic capacitor described in the utility model is the explosion-proof flame-resistant sheet of setting up in traditional electrolytic capacitor inside a kind of with holes, stops the caused fire of spray outside the inner fuse when electrolytic capacitor is blasted.Described explosion-proof flame-resistant sheet can be all thickness, all patterns that explosion-proof flame-resistant sheet inner face can relate to as: circle, rhombus, pattern such as square, oval, netted all in our protection range.
The utility model is to solve in the past electrolytic capacitor in use as blast, inner fuse produces spark, fuse sprays outward, cause other electronic devices and components to be undermined and cause fire, and invention has this time solved the problem of fire-retardant voluntarily and anti-explosion safety two aspects of electrolytic capacitor:
(1). high-voltage capacitor fire-retardant requires electrolyte therefore to need exploitation to satisfy the flame-retardant electrolyte of this performance requirement in naked light burning back from horizontal blanking.Fuse after the impregnation is removed flame at alcolhol burner after burning 10 seconds in flame 2CM place, flame needs extinguish automatically in 10 seconds on the fuse.
(2). we propose the improvement of configuration aspects here, in capacitor, increase the fire-retardant explosion-proof again structural member of energy, combine with the use of flame-retardant electrolyte, can solve the fire-retardant problem of mesohigh product better, and the damage that circuit is caused is littler, product can just under extreme conditions not damage capacitor itself because of ejection of explosion generation fuse and burning.
Explosion-proof flame retarding construction with aluminium electrolytic capacitor is that example illustrates the technical solution adopted in the utility model below, but should not be construed as restriction of the present utility model, its feature is as follows: product has increased a structure sheet in design, the material of its material and aluminum hull is identical, and purity is 99.7% aluminium:
(1) the structure sheet is made circle, the outside dimension of circular aluminium flake is than the corresponding aluminum hull Ф number little 0.6mm of internal diameter with a tight waist ± 0.05, and its thickness requirement 0.5mm-0.7mm is 19.8 ± 0.05mm as: the Ф 22 aluminum hulls position internal diameter of girdling the waist, the overall diameter of aluminium flake is 19.2 ± 0.05mm, inner face can design the poroid of different pattern, as: circle, rhombus, square, ellipse, netted etc., diameter of bore and quantity increase along with the increase of Ф number.For example Ф 22 diameter of bores are: 2.5 ± 0.05mm, interior hole number is 7.
When (two) using circular aluminium flake, clean up with pure water earlier at normal temperatures, dried then about 15 minutes.
(3) after the fuse impregnation of medium-high voltage aluminum electrolytic capacitor, prepare assembling, the aluminium flake after cleaning is put into corresponding aluminum hull bottom, then the fuse sealing is tightly got final product.
(4) add this structural member in the aluminum hull bottom, when the electric capacity explosion, (a) structural member can not change the explosion-proof performance of capacitor, capacitor is under maximum conditions, explosion when surpassing the explosion-proof pressure of aluminum hull, air pressure inside takes place, the pore of structural member can not change explosion-proof air pressure, just plays to stop that capacitor body erupts the aluminum hull outside when explosion, stops fuse to contact with extraneous air; (b) core structures can not reduce thereby positive and negative paper tinsel possibility of collision takes place greatly because of eruption changes, and the possibility that produces spark also reduces greatly; (c) structure sheet material therefor is identical with the aluminum hull material therefor, when product uses for a long time, not can with the make a difference bad reaction of capacitor performance of electrolyte; (d) structural member and aluminum hull inwall are near tight fit, during the capacitor explosion, the explosion scope pops from a point at the explosion-proof weakness of aluminum hull, and the scope that pops is the center with the central point, area has only 1/4～1/2 of aluminum hull bottom area, the situation that fuse and structural member spray simultaneously can not take place.
The utility model efficiently solves the fire-retardant problem of present medium-high voltage aluminum electrolytic capacitor product, importantly solved the pernicious security incident that causes because of the electric capacity burning under the extreme condition of complete machine aspect worry.The market demand is very big, for example: computer motherboard, Switching Power Supply, power amplifier, sound equipment, PC power source, or the like.
Description of drawings
Do briefly bright to the expressed content of each accompanying drawing in the specification below;
Fig. 1 is the explosion-proof flame retarding construction design of graphics of the utility model;
Be labeled as among the figure:
1: explosion-proof flame retarding construction spare, 2: capacitor body, 3: aluminium shell of capacitor, 4: the capacitor capillary.
Fig. 2 is for being the floor map of the explosion-proof flame retarding construction of example the utility model with the circular hole.
Embodiment
Be that example describes implementation process of the present utility model below with the aluminium electrolytic capacitor, but be not limited to aluminium electrolytic capacitor, in fact, the utility model can be applied in the various electrolytic capacitors.
We are to traditional electrical electrolysis condenser infrastructure product, only with the product of flame-retardant electrolyte, use flame-retardant electrolyte and three contrast experiments of the explosion-proof flame retarding construction spare product of the utility model, and detecting under identical blasting condition, three kinds of different structures are to the reaction of explosion.
We are structure and the experiment situation that example illustrates the explosion-proof flame retarding construction of the utility model with the aluminium electrolytic capacitor that is of a size of 22*40, and process is as follows:
One, the overall diameter of aluminium flake is 19.2 ± 0.05mm, and inner face can design the poroid of different pattern, as: circle, rhombus, square, ellipse, netted etc., diameter of bore and quantity increase along with the increase of Ф number.For example Ф 22 diameter of bores are: 2.5 ± 0.05mm, interior hole number is 7.
When two, using circular aluminium flake, clean up with pure water earlier at normal temperatures, dried then about 15 minutes.
Three, after the fuse impregnation of medium-high voltage aluminum electrolytic capacitor, prepare assembling, the aluminium flake after cleaning is put into corresponding aluminum hull bottom, then the fuse sealing is tightly got final product.
Four, experiment condition: all adopting nominal capacity is 470UF, and operating voltage is the SM capacitor that 200V is of a size of 22*40, and the overload voltage/current is 5 amperes (5A).
Five, to traditional electrolytic capacitor, experimental result shows that the bottom explosion-proof valve seriously ftractures, and inner fuse is gone out explosion-proof valve, produces a little spark; With the product of flame-retardant electrolyte, the result shows that the bottom explosion-proof valve seriously ftractures for only, and inner fuse is gone out explosion-proof valve, does not have spark to produce; For the product of the utility model flame retarding construction spare that uses flame-retardant electrolyte, experimental result shows that the bottom explosion-proof valve seriously heaves, but only slightly splits, and inner fuse do not go out explosion-proof valve, does not have spark to produce.Concrete outcome sees the following form:
| Product type | Experimental condition | Result of the test |
| Traditional electrical electrolysis condenser infrastructure product | 1.470UF/200V 22*40 SM 1PCS 1.2 2. overload voltage/ |
1. the bottom explosion-proof valve seriously ftractures; 2. inner fuse is gone out explosion-proof valve and is produced a little spark. |
| Only use the flame-retardant electrolyte product | 1.470UF/200V 22*40 SM 1PCS 1.2 2. overload voltage/ |
1. the bottom explosion-proof valve seriously ftractures; 2. inner fuse is gone out explosion-proof valve, does not have spark to produce. |
[0028]
| Use the product of flame-retardant electrolyte and the utility model flame retarding construction. | 1.470UF/200V 22*40 SM 1PCS 1.2 2. overload voltage/ |
1. the bottom explosion-proof valve is seriously heaved, and slightly splits; 2. inner fuse does not have the explosion-proof valve of going out, and does not have spark to produce. |
This shows, used explosion-proof flame retarding construction of the present utility model can prevent effectively that inner fuse from going out capacitor, and when explosion-proof flame retarding construction of the present utility model and flame-retardant electrolyte are used in combination, more can effectively prevent the generation of spark, solved the fire-retardant problem of present electrolytic capacitor product, importantly solve the pernicious security incident that causes because of the electric capacity burning under the extreme condition of complete machine aspect worry, had a significant using value.
Claims (8)
1. the explosion-proof flame retarding construction of an electrolytic capacitor, it is characterized in that: this explosion-proof flame retarding construction is the explosion-proof flame-resistant sheet of setting up in electrolytic capacitor inside a kind of with holes.
2. the explosion-proof flame retarding construction of electrolytic capacitor according to claim 1 is characterized in that this electrolytic capacitor is an aluminium electrolytic capacitor.
3. the explosion-proof flame retarding construction of electrolytic capacitor according to claim 1 is characterized in that the material that this explosion-proof flame retarding construction is preferably identical with the electrolytic capacitor enclosure material.
4. the explosion-proof flame retarding construction of electrolytic capacitor according to claim 1 is characterized in that this explosion-proof flame retarding construction is positioned at the electrolytic capacitor bottom inside.
5. the explosion-proof flame retarding construction of electrolytic capacitor according to claim 1 is characterized in that this explosion-proof flame retarding construction has a hole or porous.
6. the explosion-proof flame retarding construction of electrolytic capacitor according to claim 5 is characterized in that this hole is circle, rhombus, square, oval or netted.
7. the explosion-proof flame retarding construction of electrolytic capacitor according to claim 1, the outside dimension that it is characterized in that this explosion-proof flame retarding construction is than the respective electrical container shell little 0.6mm of internal diameter with a tight waist ± 0.05.
8. the explosion-proof flame retarding construction of electrolytic capacitor according to claim 1 is characterized in that this explosion-proof flame retarding construction thickness is 0.5mm-0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202618840U CN201638691U (en) | 2009-12-24 | 2009-12-24 | Explosion-proof and flame-proof structure of electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202618840U CN201638691U (en) | 2009-12-24 | 2009-12-24 | Explosion-proof and flame-proof structure of electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638691U true CN201638691U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202618840U Expired - Fee Related CN201638691U (en) | 2009-12-24 | 2009-12-24 | Explosion-proof and flame-proof structure of electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794375A (en) * | 2014-01-16 | 2014-05-14 | 深圳江浩电子有限公司 | Aluminum electrolytic capacitor |
| CN105469979A (en) * | 2015-12-31 | 2016-04-06 | 天津市科达斯特光电科技有限公司 | Capacitor holder |
-
2009
- 2009-12-24 CN CN2009202618840U patent/CN201638691U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794375A (en) * | 2014-01-16 | 2014-05-14 | 深圳江浩电子有限公司 | Aluminum electrolytic capacitor |
| CN103794375B (en) * | 2014-01-16 | 2017-02-01 | 深圳江浩电子有限公司 | Aluminum electrolytic capacitor |
| CN105469979A (en) * | 2015-12-31 | 2016-04-06 | 天津市科达斯特光电科技有限公司 | Capacitor holder |
| CN105469979B (en) * | 2015-12-31 | 2018-10-19 | 新昌县鼎石科技咨询服务有限公司 | A kind of capacitance holding frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN NICON JIFENG ELECTRONIC CO., LTD. Free format text: FORMER OWNER: ZHANG YUNFENG Effective date: 20111018 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111018 Address after: 518000 Guangdong city of Shenzhen province Luohu District Rosa road Huaqingyuan D building 803 Patentee after: Shenzhen Nicon Electronics Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Luohu District Rosa road Huaqingyuan D building 803 Patentee before: Zhang Yunfeng |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGXI JIGUANG ELECTRONICS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN NICON JIFENG ELECTRONIC CO., LTD. Effective date: 20150327 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 542800 HEZHOU, GUANGXI ZHUANG AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150327 Address after: 542800 the Guangxi Zhuang Autonomous Region Hezhou Ping Road (behind Guidong Electronics) Patentee after: GUANGXI JIGUANG ELECTRONIC TECHNOLOGY CO., LTD. Address before: 518000 Guangdong city of Shenzhen province Luohu District Rosa road Huaqingyuan D building 803 Patentee before: Shenzhen Nicon Electronics Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20161224 |