CN206098164U - Aluminium electrolytic capacitor core package and aluminium electrolytic capacitor - Google Patents
Aluminium electrolytic capacitor core package and aluminium electrolytic capacitor Download PDFInfo
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- CN206098164U CN206098164U CN201620984127.6U CN201620984127U CN206098164U CN 206098164 U CN206098164 U CN 206098164U CN 201620984127 U CN201620984127 U CN 201620984127U CN 206098164 U CN206098164 U CN 206098164U
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- electrolytic capacitor
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- aluminium electrolytic
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Abstract
The utility model relates to an aluminium electrolytic capacitor core package and aluminium electrolytic capacitor, wherein aluminium electrolytic capacitor >= 1.15 times of rated voltage and >= during 1A's current rush, the inside short circuit of disappearance aluminium electrolytic capacitor is struck sparks, is exploded. Aluminium electrolytic capacitor core package includes that the anode foil that rivets positive guide pin by the nail and nail rivet negative guide pin's cathode foil and pressing from both sides the electrolytic paper and convolute and form characterized by anode foil's width ratio cathode foil's the at least 1.0 wide mm of width, anode foil covers cathode foil promptly, and the difference between the adjacent both sides of anode foil and cathode foil is 0.5 mm at least respectively, the utility model discloses simple structure, it is convenient to implement, the aluminium electrolytic capacitor that prepare >= 1.15 times of rated voltage and >= during 1A's current rush, explosion -proof valve is normally opened, the inside short circuit and the phenomenon of exploding appear, can satisfy converter, welding machine, the UPS electrical power unit technical requirement to aluminium electrolytic capacitor.
Description
Technical field
The utility model is related to a kind of production of aluminium electrolutic capacitor, specifically a kind of aluminum electrolytic capacitor core bag and
Aluminium electrolutic capacitor, more particularly to a kind of aluminium electrolutic capacitor in the rush of current of >=1.15 times of rated voltages and >=1A,
Occur without the sparking of aluminium electrolutic capacitor internal short-circuit, the aluminum electrolytic capacitor core bag of blast and aluminium electrolutic capacitor.
Background technology
Nail riveting is generally had the anode foils of positive guide pin and nail riveting to have the Cathode Foil of negative guide pin by the core bag of aluminium electrolutic capacitor
Clip electrolytic paper to wind and form on nail volume machine, during winding, general Cathode Foil is first rolled up compared with anode foils, anode foils circumferential notch edge
Encased completely by electrolytic paper and Cathode Foil.Now, the burr at anode foils circumferential notch edge is possible to part and punctures electrolytic paper, from
And make anode foils with Cathode Foil in extra-high pressure（More than 1.15 times of rated value）, high current（≥1A）Impact under occur short circuit
Sparking is even exploded.
In recent years, with the development of converter technique, frequency converter, welding machine and ups power equipment etc. are to large-scale aluminium electrolysis electric capacity
Device proposes small size, resistance to extra-high pressure, the requirement of heavy current impact, it is allowed to which aluminium electrolutic capacitor is in extra-high pressure（More than volume
1.7 times of definite value）, high current（≥300A）The lower failure of impact, but be not allow for Mars emerges from whole machine, occurs without aluminium electroloysis
Capacitor internal short circuit sparking, blast.
For this purpose, can be to improve electrolyte flash over voltage using one, two is to improve aluminium foil pressure voltage, and three is to adopt high density,
The technical schemes such as the electrolytic paper of high thickness.But, electrolyte flash over voltage is improved, the electrical conductivity of electrolyte can be accordingly reduced, electricity
Initial electrical characteristics DF of container are high.Improve aluminium foil pressure, can accordingly reduce aluminium foil specific volume, it is impossible to meet small size requirement, meanwhile, increase
Plus the cost of raw material.Using high density, high thickness electrolytic paper, in the case of the product size limit, condenser capacity was designed
It is low, it is impossible to meet customer requirement.
Jing tests find that bottom explosion-proof valve abnormal opening occurs under extra-high pressure, heavy current impact in aluminium electrolutic capacitor,
The main cause of cover plate pin terminals sparking even blast is that the different degrees of short circuit of core bag appearance punctures, particularly in core bag
There is substantially sparking vestige at the position of paper tinsel side, show the paper tinsel burr of anode foils, Cathode Foil under extra-high pressure, heavy current impact
Point discharge causes short circuit to puncture.
The content of the invention
The purpose of this utility model is to provide a kind of aluminium electrolutic capacitor in >=1.15 times of rated voltages and the electric current of >=1A
During impact, the sparking of aluminium electrolutic capacitor internal short-circuit, the aluminum electrolytic capacitor core bag of blast and aluminium electrolutic capacitor are occurred without.
The utility model is adopted the following technical scheme that realizes its goal of the invention, a kind of aluminum electrolytic capacitor core bag, it
The Cathode Foil for having negative guide pin including the anode foils and nail riveting that are had positive guide pin by nail riveting clips electrolytic paper winding and forms, the anode foils
Width ratio Cathode Foil at least wide 1.0 ㎜ of width, i.e. anode foils covered cathode paper tinsel, between anode foils both sides adjacent with Cathode Foil
Difference at least be respectively 0.5 ㎜.
Difference between the utility model anode foils both sides adjacent with Cathode Foil is at least respectively 0.5 ㎜～0.75 ㎜.
There is folding line to avoid anode foils roll set position, reduce the distance that aluminium foil burr at core is pierced into electrolytic paper, this reality
The coil diameter that rises when being wound with the new anode foils is at least 5.2 ㎜.
A diameter of 5.8 ㎜～7 ㎜ of roll set when the utility model anode foils wind.
For the distance between burr in anode foils at increase core and Cathode Foil, the length of anode foils described in the utility model
Than Cathode Foil length to the ㎜ of the youthful and the elderly 4.0, i.e., roll set position when roll set position when anode foils wind winds with anode foil it
Between difference be at least 2.0 ㎜.
The utility model anode foils wind when roll set position and anode foil wind when roll set position between difference be
2.0 ㎜～3.0 ㎜.
A kind of aluminium electrolutic capacitor, including above-mentioned aluminum electrolytic capacitor core bag.
Due to adopting above-mentioned technical proposal, the utility model preferably to realize goal of the invention, its simple structure, embodiment party
Just, in the rush of current of >=1.15 times of rated voltages and >=1A, explosion-proof valve is normally-open, not for prepared aluminium electrolutic capacitor
There is internal short-circuit and explosion phenomenon, the technical requirements of frequency converter, welding machine, ups power equipment to aluminium electrolutic capacitor can be met.
Description of the drawings
Fig. 1 is the burr structure schematic diagram on prior art paper tinsel side；
Fig. 2 is the structural representation of the burr on the utility model paper tinsel side.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
In recent years, with the development of converter technique, frequency converter, welding machine and ups power equipment etc. are to large-scale aluminium electrolysis electric capacity
Device proposes small size, resistance to extra-high pressure, the requirement of heavy current impact, it is allowed to which aluminium electrolutic capacitor is in extra-high pressure（More than volume
1.7 times of definite value）, high current（≥300A）The lower failure of impact, but it is not allow for Mars and emerges from whole machine.But, existing skill
Aluminium electrolutic capacitor prepared by art occurs short circuit sparking under such extra-high pressure, heavy current impact, mostly and even explodes.
Trace it to its cause, the core bag of aluminium electrolutic capacitor is in winding, and anode foils are generally wide with Cathode Foil, and anode foils
With Cathode Foil during cutting, its paper tinsel side can leave extremely small burr, it is possible to electrolytic paper partly be punctured, by Fig. 1
Understand, because the distance between anode foils burr 4 and Cathode Foil burr 5 shorten, so, greatly reduce the insulation of electrolytic paper 3
Effect, improves burr and causes the short-circuit probability for puncturing in the electric discharge of electric field action lower prong.
Embodiment 1：
As shown in Figure 2, a kind of aluminum electrolytic capacitor core bag, it includes that the anode foils 1 for having positive guide pin by nail riveting and nail riveting have
The Cathode Foil 2 of negative guide pin clips the winding of electrolytic paper 3 and forms, and the width of the width ratio Cathode Foil 2 of the anode foils 1 is at least wide by 1.0
㎜, i.e. the covered cathode paper tinsel 2 of anode foils 1, the difference between anode foils 1 and the adjacent both sides of Cathode Foil 2 is at least respectively 0.5 ㎜.
Difference between the utility model anode foils 1 and the adjacent both sides of Cathode Foil 2 is at least respectively 0.5 ㎜～0.75 ㎜.
The present embodiment is 0.5 ㎜, i.e., the D values shown in Fig. 2 are 0.5 ㎜.
A kind of aluminium electrolutic capacitor, including above-mentioned aluminum electrolytic capacitor core bag.
The present embodiment as a example by preparing the aluminium electrolutic capacitor of the specifications of 4,20V,390 30 × 45, by the core bag for preparing on request
The steps such as impregnated-riveting lid-group vertical-aging-sleeve pipe-inspection, during winding, adjusting nut or button handle make the upper and lower paper tinsel of anode foils 1
Distance while with 2 upper and lower paper tinsel of Cathode Foil is respectively 0.5 ㎜, is finally fixed core bag with adhesive tape.Choose 10 qualified aluminium electricity
Electrolysis condenser is tested respectively under the conditions of magnitude of voltage 485Vdc, current value 1A and 720Vdc, current value 300A, as a result inside core bag
Normally, without short circuit sparking vestige and explosion phenomenon, also without outside terminal short circuit sparking, blast.
When as shown in Figure 2, due to winding, the width of the width ratio Cathode Foil 2 of anode foils 1 is wide, increases paper tinsel side anode
The distance between paper tinsel burr 4 and Cathode Foil burr 5, so, greatly reduce burr and cause short in the electric discharge of electric field action lower prong
The probability that road punctures.Prepared aluminium electrolutic capacitor can meet frequency converter, welding machine, ups power equipment to aluminium electrolutic capacitor
Technical requirements.
Embodiment 2：
The present embodiment chooses the aluminium electrolutic capacitor 10 of the qualified specifications of 5,00V,330 30 × 50, in magnitude of voltage
Test respectively under the conditions of 575Vdc, current value 1A and 850Vdc, current value 300A, as a result core bag inside is normal, without short circuit sparking
Vestige and explosion phenomenon, also without outside terminal short circuit sparking, blast.
Remaining same embodiment 1.
Embodiment 3：
There is folding line to avoid the roll set position of anode foils 1, reduce the distance that aluminium foil burr at core is pierced into electrolytic paper 3, this
The coil diameter that rises when anode foils 1 described in utility model wind is at least 5.2 ㎜.
A diameter of 5.8 ㎜～7 ㎜ of roll set when the utility model anode foils 1 wind.The present embodiment is 5.8 ㎜.
The present embodiment as a example by preparing the aluminium electrolutic capacitor of the specifications of 4,20V,390 30 × 45, by the core bag for preparing on request
The steps such as impregnated-riveting lid-group vertical-aging-sleeve pipe-inspection, during winding, increase the first volume length of electrolytic paper 3, make aluminium foil roll set
A diameter of 5.8 ㎜.10 qualified aluminium electrolutic capacitors are chosen in magnitude of voltage 485Vdc, current value 1A and 720Vdc, current value
Test respectively under the conditions of 300A, as a result core bag inside is normal, without short circuit sparking vestige and explosion phenomenon, also without outside terminal short circuit
Sparking, blast.
The present embodiment to be increased and play coil diameter when anode foils 1 wind, and is on the one hand reduced aluminium foil burr and is pierced into electrolytic paper
Distance, reduces burr and causes the short-circuit probability for puncturing in the electric discharge of electric field action lower prong；On the other hand, anode foils 1 be it also avoid
Roll set position（About the ㎜ of roll set 0 starts to 50 ㎜ positions）There is observable folding line under light microscope, and then avoid electric capacity
Device the appearance of defect such as punctures, explodes because bearing high voltage, high current and being short-circuited at core position.
Remaining same embodiment 1.
Embodiment 4：
The present embodiment chooses the aluminium electrolutic capacitor 10 of the qualified specifications of 5,00V,330 30 × 50, in magnitude of voltage
Test respectively under the conditions of 575Vdc, current value 1A and 850Vdc, current value 300A, as a result core bag inside is normal, without short circuit sparking
Vestige and explosion phenomenon, also without outside terminal short circuit sparking, blast.
Remaining same embodiment 1,3.
Embodiment 5：
To increase at core the distance between burr in anode foils 1 and Cathode Foil 2, anode foils described in the utility model 1
Roll set when roll set position when length winds than length to the ㎜ of the youthful and the elderly 4.0, the i.e. anode foils 1 of Cathode Foil 2 winds with anode foil 2
Difference between position is at least 2.0 ㎜.
The difference between roll set position when roll set position and anode foil 2 when the utility model anode foils 1 wind winds
For 2.0 ㎜～3.0 ㎜.The present embodiment is 2.0 ㎜.
The present embodiment as a example by preparing the aluminium electrolutic capacitor of the specifications of 4,20V,390 30 × 45, by the core bag for preparing on request
The steps such as impregnated-riveting lid-group vertical-aging-sleeve pipe-inspection, during winding, increase the first volume length of electrolytic paper 3, make aluminium foil roll set
A diameter of 5.8 ㎜；Anode foils 1 and the unequal length of Cathode Foil 2, i.e. negative and positive are completed in the first volume stage by adjusting motor stroke
Pole paper tinsel 1, Cathode Foil 2 send paper tinsel length inconsistent；The stage is rolled up by the foil-cutting knife of anode foils 1 and the foil-cutting knife of Cathode Foil 2 of staggering, make in tail
Anode foils 1 are not cut off with Cathode Foil 2 in same vertical position；Ensure that the length of anode foils 1 is longer than the length of Cathode Foil 2, finally
Core bag is fixed with adhesive tape.10 qualified aluminium electrolutic capacitors are chosen in magnitude of voltage 485Vdc, current value 1A and 720Vdc, electricity
Test respectively under the conditions of flow valuve 300A, as a result core bag inside is normal, without short circuit sparking vestige and explosion phenomenon, also without outside terminal
Short circuit sparking, blast.
The length of the present embodiment anode foils 1 is longer than the length of Cathode Foil 2, increase at core winding core anode foils burr 4 with
The distance between Cathode Foil burr 5, so, has been greatly reduced burr and has caused what short circuit punctured in the electric discharge of electric field action lower prong
Probability.
Embodiment 6：
The present embodiment chooses the aluminium electrolutic capacitor 10 of the qualified specifications of 5,00V,330 30 × 50, in magnitude of voltage
Test respectively under the conditions of 575Vdc, current value 1A and 850Vdc, current value 300A, as a result core bag inside is normal, without short circuit sparking
Vestige and explosion phenomenon, also without outside terminal short circuit sparking, blast.
Remaining same embodiment 1,5.
Claims (5)
1. a kind of aluminum electrolytic capacitor core bag, it includes that the anode foils for having positive guide pin by nail riveting and nail riveting have the Cathode Foil of negative guide pin
Clip electrolytic paper winding to form, it is characterized in that at least wide 1.0 ㎜ of width of the width ratio Cathode Foil of the anode foils, i.e. anode foils
Covered cathode paper tinsel, the difference between anode foils both sides adjacent with Cathode Foil is at least respectively 0.5 ㎜；When the anode foils wind
Play coil diameter and be at least 5.2 ㎜；When the length of the anode foils winds than length to the ㎜ of the youthful and the elderly 4.0, the i.e. anode foils of Cathode Foil
Roll set position and anode foil wind when roll set position between difference be at least 2.0 ㎜.
2. aluminum electrolytic capacitor core bag according to claim 1, is characterized in that between anode foils both sides adjacent with Cathode Foil
Difference at least be respectively 0.5 ㎜～0.75 ㎜.
3. aluminum electrolytic capacitor core bag according to claim 1, is characterized in that the roll set a diameter of 5.8 during anode foils winding
㎜～7 ㎜.
4. aluminum electrolytic capacitor core bag according to claim 1, roll set position when it is characterized in that anode foils wind with it is negative
The difference between roll set position when pole paper tinsel winds is 2.0 ㎜～3.0 ㎜.
5. a kind of aluminium electrolutic capacitor, is characterized in that including the aluminum electrolytic capacitor core bag described in any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620984127.6U CN206098164U (en) | 2016-08-30 | 2016-08-30 | Aluminium electrolytic capacitor core package and aluminium electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620984127.6U CN206098164U (en) | 2016-08-30 | 2016-08-30 | Aluminium electrolytic capacitor core package and aluminium electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206098164U true CN206098164U (en) | 2017-04-12 |
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ID=58474022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620984127.6U Active CN206098164U (en) | 2016-08-30 | 2016-08-30 | Aluminium electrolytic capacitor core package and aluminium electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206098164U (en) |
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2016
- 2016-08-30 CN CN201620984127.6U patent/CN206098164U/en active Active
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