CN102256426A - Antistatic plate and device, and application of device - Google Patents
Antistatic plate and device, and application of device Download PDFInfo
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- CN102256426A CN102256426A CN2011101160926A CN201110116092A CN102256426A CN 102256426 A CN102256426 A CN 102256426A CN 2011101160926 A CN2011101160926 A CN 2011101160926A CN 201110116092 A CN201110116092 A CN 201110116092A CN 102256426 A CN102256426 A CN 102256426A
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Abstract
The invention provides an antistatic plate, an antistatic device and application of the antistatic device. The antistatic plate and the antistatic device can be arranged at any position of electric equipment, are used for eliminating static electricity of the electric equipment, have stable performance and do not influence human health. The antistatic plate comprises a metal plate (2) and a coating (3) which is formed on any surface of the metal plate (2); a grounded lead (4) is connected to the metal plate (2); and the coating (3) comprises a powdery piezoelectric material, a dielectric and a silicone coating which are used as main components. The antistatic device is formed by overlapping multiple layers of the antistatic plates, and preferably is provided with one or more sandwich structures which are formed by clamping overlapped bodies of the multiple layers of the antistatic plates by using an aluminum mesh.
Description
Technical field
The present invention relates to antistatic field, relate in particular to and be used for the antistatic of electric, electronic equipment with plate, device and application thereof.
Background technology
Any interior of articles all has electric charge, and under the general state, its positive and negative amount of charge equates, externally do not demonstrate electrification phenomenon, but when two kinds of different objects contacts or friction, the electronegative electronics of a kind of object will be crossed the interface, enter in the another kind of object, static has just produced.And because of their institutes have produced very high electrostatic pressure during electrically charged gathering, when two objects that have different electric charges separate or electric spark occurs during contact, the phenomenon of Here it is static discharge.Along with the extensive application of electrical equipment, electronic equipment, static is ubiquitous, always has, and they all are potential interference source for electronic equipment.The static that is produced when electrical equipment, electronic device works, easily to around other electrical equipment, electronic equipment initiating failure or influence the transmission of signal.Such as, the broadcast receiver on the automobile, hot dry season Li Changyin tire and pavement friction produce electrostatic interference and can't receive.As seen, electrostatic interference can cause the fault of electrical equipment, electronic equipment or influence the transmission of signal, and is endangering the healthy of people, destroys the ecological balance.
It has been generally acknowledged that the static transmission has dual mode: a kind of is conduction pattern; Another kind is a radiation mode.In actual engineering, the coupling that is comprising many kinds of approach usually takes place to disturb between two equipment.Just because of the coupling of number of ways exists simultaneously, to intersect repeatedly, the common generation disturbed, and just makes electrostatic interference become and is difficult to control.
In automotive system, electrostatic interference is particularly evident, and especially the electrostatic interference that automotive ignition system produced is very strong.Utilize existing electrostatic interference removing method well not address this problem, become automobile static and suppress, realize one of difficult point of electromagnetic compatibility.Ignition system relates to many technical problems such as firing circuit performance, ignition energy control, time of ignition control, cylinder operating mode.Cause a large amount of electromagnetic interference in the ignition process by static, mainly be divided into high frequency radiation interference of conducted interference, high-voltage conducting wires and sparkover that ignition coil primary circuit transient voltage causes etc.Conducted interference not only impacts to battery tension, also can pass to other electronic equipments in the car by power line simultaneously.High frequency electromagnetic radiation also can produce considerable influence to electronic control unit in the car (ECU), thereby the fail safe aspects such as monitoring of automobile are produced serious harm.In addition, the interference that is caused by static causes the operating error of ECU and igniter, makes the combustion efficiency of burner reduce, and this has wasted the energy on the one hand, and unburned gaseous emission has caused the serious environmental pollution in atmosphere on the one hand.
At present, FERRITE CORE can be used as and reduces outside parts to e-machine or cable interference.But when running into high-frequency interferencing signal, the inductance short circuit of magnet ring will short circuit, can't bring into play anlistatig effect, and its volume ratio is bigger, is unsuitable for being installed in the car body.Can also use the effect of filter performance anti-electromagnetic wave, but filter must be known and is subjected to which kind of electromagnetic interference.Even if all be electromagnetic wave, the electromagnetic wave that has e-machine to produce, the High-frequency Interference that has converter to produce, the electricity that power line produces is situated between and disturbs, or be that cable plays electric wave that the effect of antenna will cross in the air and various situations such as collects, effective filter of corresponding different situations is also different.Therefore concentrate at electric, electronic equipment, in the staggered equipment of complex circuit (as automobile), how to eliminate the electromagnetism phase mutual interference that causes owing to static between electric easily, avoid the operating error that causes by it, become problem demanding prompt solution.
Summary of the invention
In view of the foregoing, the present invention aims to provide a kind of antistatic with plate and device, this is antistatic not only can be installed in plate on any position of various electrical equipment, electronic equipment, good stability and safety, to health without any influence, and can eliminate the electromagnetic interference that causes by static between the electric equipment greatly, and avoid the operating error of equipment, operating efficiency is provided.
For this reason, the invention provides a kind of antistatic plate of using, this is antistatic to comprise metallic plate and the coating that forms in its surface with plate, and on this metallic plate, connect earth lead, the principal component of coating is Powdered piezoelectric, dielectric and silicone material, and the weight ratio of piezoelectric and dielectric is 1.2-1.6 in the coating: 1.
Above-mentioned piezoelectric can be barium titanate, lead zirconate titanate, modification lead zirconate titanate, lead meta-columbute, lead niobate barium lithium or modified lead titanate, wherein is preferably barium titanate.
Above-mentioned dielectric is meant the material that dielectricity is higher, and for example the high dielectric property polymer mainly contains polyurethane cellulose, cyanoethylation polyurethane cellulose and polyvinylidene fluoride; The bamboo charcoal powder; Materials such as graphite.
The class that is meant above-mentioned silicone coating contains the organosilicon polymer coating of Si-O-Si chain, as silicone resin material, fireproof coating.
The metallic plate that the present invention adopts can be aluminium, copper, gold or the alloy that contains these compositions, and used metallic plate should have certain pliability.
Preferably, the thickness of paint coatings≤20 μ m.
According to coating provided by the invention, the quality of Powdered piezoelectric is greater than 20% of the coating total weight, and the dielectric quality is greater than 10% of the coating total weight, and the silicone coating quality is less than 70% of total weight.
When this is antistatic when being used for petrol engine with plate, the weight ratio of piezoelectric and dielectric is 1.2: 1.When being used for Diesel engine with plate, the weight ratio of piezoelectric and dielectric is 1.5: 1 when antistatic.When being used for heavy fuel burning engine with plate, the weight ratio of piezoelectric and dielectric is 1.6: 1 when antistatic.
This is antistatic can be installed in the outer peripheral face of electric equipment with plate, and can dismantle, and the surface that scribbles above-mentioned coating closely contacts with equipment.Can adopt adhesion or other modes according to the adaptive installation of its surface configuration.
The surface area that can increase this usefulness plate is to strengthen its anlistatig ability.In addition, can also be by the antistatic stack body with plate of multilayer being made sandwich by aluminum netted (mesh) net clamping, because aluminum netted (mesh) net plays the effect of bolster, can prevent vibration owing to electric equipment, this anti-electromagnetism comes off accidentally with plate.
Provided by the inventionly antistaticly can be used for automotive system, static is attached or is strapped on the parts of automotive system with plate, can eliminate the static that parts produce with plate.
By adopting the antistatic plate of using provided by the invention, can effectively eliminate electric equipment the static that is produced, and then eliminate electromagnetic interference, guaranteed the normal operation of electric equipment by generation of static electricity.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows according to antistatic structural representation with plate in one embodiment of the present invention;
Fig. 2 shows according to antistatic side-looking structural representation with plate among Fig. 1;
Fig. 3 shows the antistatic perspective view with plate according to another embodiment of the present invention;
Fig. 4 shows the antistatic assembling process state diagram of using the stack body of plate 1;
State diagram after the assembling of the stack body shown in Figure 4 that Fig. 5 shows is finished;
Fig. 6 shows in the specific embodiment of the invention automobile power influence test 1 figure as a result;
Fig. 7 shows in the specific embodiment of the invention automobile power influence test 2 figure as a result.
Embodiment
To be described in further detail goal of the invention of the present invention, technical scheme and beneficial effect below.
Be noted that following detailed description all is exemplary, is intended for the requested to provide further explanation of the invention.Unless otherwise, all technology used herein and scientific terminology have the identical meanings with general technical staff of the technical field of the invention's common sense.
In the equipment that electronic device is concentrated, complex circuit is staggered, the operate as normal of each parts in the electrostatic phenomenon serious harm, not only influences the operating efficiency of equipment, also can influence the output signal of equipment, produces error message and operation.
The present invention is exactly in order to address the above problem, a kind of antistatic plate of using is provided, and this is antistatic to comprise metallic plate and form coating on one surface with plate, and connects earth lead on this metallic plate, the principal component of this coating is Powdered piezoelectric, dielectric and silicone material.
Piezoelectric is meant to be under pressure makes voltage can appear in the time spent between both ends of the surface crystalline material.The piezoelectric that the present invention adopts can be barium titanate, lead zirconate titanate, modification lead zirconate titanate, lead meta-columbute, lead niobate barium lithium, modified lead titanate, wherein is preferably barium titanate.
Dielectric is meant the material that dielectricity is higher, and for example the high dielectric property polymer mainly contains materials such as polyurethane cellulose, cyanoethylation polyurethane cellulose and polyvinylidene fluoride, bamboo charcoal powder, graphite.
The class that is meant silicone coating contains the organosilicon polymer coating of Si-O-Si chain, as silicone resin material, fireproof coating.
According to coating provided by the invention, the quality of Powdered piezoelectric is greater than 20% of the coating total weight, and the dielectric quality is greater than 10% of the coating total weight, and the silicone coating quality is less than 70% of total weight.Preferably, in coating provided by the invention the weight ratio of piezoelectric and dielectric at 1.2-1.6: in 1 the scope.
The metallic plate that the present invention adopts can be aluminium, copper, gold or the alloy that contains these compositions, and selected materials has certain pliability.Override is considered conductivity when selecting metal material, also can consider from aspects such as cost, durability in addition, selects suitable metallic plate as required.
In embodiment provided by the invention, above-mentioned antistatic thickness with the plate floating coat is preferably≤20 μ m.This is because principal component is Powdered piezoelectric in coating, dielectric and silicone material.The particle diameter of these dusty raw materials is preferably 3～8 μ m.The THICKNESS CONTROL of coating in the scope that is no more than 20 μ m, can be guaranteed that various materials keep neat homogeneous in the coating, avoid worsening, simultaneously, can also control production cost because of the too much overlapping caused effect of various materials.
This is antistatic can be installed in the outer peripheral face of electric equipment with plate, and can dismantle, and it is made of thin metallic plate of banded pliability and the coating that is coated on this metal sheet surface, and the face that scribbles above-mentioned coating closely contacts with equipment.Can adopt adhesion or other modes according to the adaptive installation of its surface configuration.
The surface area of electric equipment is limited, in order to increase the surface area with plate, strengthens its anlistatig ability, can handle to increase the area of coating its surface.Can adopt the general technical method in this area to increase surface area, Fig. 3 shows a kind of mode that increases surface area.
In addition, can also because this aluminum net plays the effect of bolster, can prevent the vibration owing to electric equipment by forming antistatic usefulness plate holder layer structure by antistatic the consolidating with stack of plates and by the aluminum network folder of multilayer, this anti-electromagnetism comes off accidentally with plate.Owing to adopted the how antistatic plate of using, strengthened anlistatig ability.
Below with reference to the accompanying drawings, embodiments of the present invention are described.
Fig. 1 is a kind of antistatic structural representation with plate provided by the invention.
In the figure, antistaticly form coating 3 by one side, and on this metallic plate 2, connect an end of lead 4, the other end ground connection of lead 4 (earthing potential of applicable object electric equipment) and constituting at metallic plate 2 with plate 1.Metallic plate 2 is made of the material that conducts electricity very well (for example, copper, gold or contain the alloy of these compositions), and considers that from easily deformable property such as bendings this thickness of slab will approach (for example, 0.2mm) as far as possible.The length L of metallic plate 2 decides according to the outer perimeter that is suitable for electric equipment, is the length L that can enough twine this electric equipment periphery.And the width W of metallic plate 2 determines the formation area of the coating 3 that forms on one of metallic plate 2 surface with length L, and because the formation area and the antistatic effect of this coating 3 are in close relations, therefore, can set only formation area as required.
As shown in Figure 2, the principal component of coating 3 is Powdered piezoelectric 5, and with piezoelectric 5 well-mixed dielectrics and silicone material 6 (6 represent the other materials except piezoelectric 5 in the coating, as dielectric and two kinds of materials of silicone material), piezoelectric 5 is to be made up of the particle of small (for example, about 3 microns).Silicone coating is used for shifting smoothly the electric charge that this piezoelectric 5 generates for silicone coating (retention agent), the dielectric that contains homogenizing piezoelectric 5 at least has semiconductor property.In the coating that above-mentioned substance is made, can also add adhesive, be used for clagging is formed coating to metallic plate 2 surfaces.
Antistaticly in the above-described embodiment can eliminate electrostatic interference around the electric equipment with plate 1, its principle is that the piezoelectric in the coating follows the vibration of electric equipment to produce electromotive force on the figure layer, then, under the electric field action that this electromotive force produces, eliminated the static of electrical equipment self.
The antistatic perspective view with plate that Fig. 3 shows another embodiment of the present invention, pattern that in this embodiment should the concavo-convex interval of antistatic usefulness plate surface support has increased the surface area of coating, has increased its anlistatig ability.
Fig. 4 shows antistatic stack body assembling process state diagram with plate 1, the state diagram after the assembling of the stack body shown in Figure 4 that Fig. 5 shows is finished.Anti static device 10 has following sandwich: at metal substrate 11, for example stack a plurality of (exemplifying 4 at this) metallic plate 12-15 on the aluminium base adopts aluminium netted (mesh) net 16,17 with its clamping.In addition, in the figure, the aluminium mesh network 16 of top and the aluminium mesh network 17 of below are described as two, but are not limited thereto, it also can be a whole aluminium net.
Metallic plate 12-15 is identical with antistatic metallic plate 2 with plate among Fig. 1 herein, forms coating 18-21 on a certain surface of metallic plate 12-15 respectively, and above-mentioned coating 18-21 is identical with antistatic coating 3 with plate among Fig. 1.And, draw lead 22 from metallic plate 12-15, this lead 22 is connected to the earthing potential of this electric equipment.
Have as the anti static device 10 of above-mentioned structure and antistaticly have identical principle with plate 1, the effect of performance anti-ground magnetic disturbance with shown in Figure 1.
In addition, anti static device 10 is formed by stacking by stacked conducting plate, for antistatic effect, is equivalent to the total surface area of this each metallic plate, and its antistatic effect is each antistatic summation with the plate effect.
And the two sides of this anti static device 10 is equipped with aluminium mesh network 16 and 17, and therefore, in the time of on being installed to electric equipment, aluminium mesh network 16 and 17 plays the effect of bolster, can prevent that locking apparatus 10 misplaces accidentally or comes off.
In order to test the antistatic effect of coating provided by the present invention, carried out a series of experiments and verified:
Embodiment 1-3:
Add an amount of binding agent according to material that is provided in the table 1 and ratio and mix preparation coating, then coating is coated on the metallic plate, make the antistatic plate 1-3 that uses.Antistaticly be fixed on the storage battery above-mentioned, test its voltage stability with plate 1-3.Electromagnetic interference is as follows with the basic condition of plate 1-3:
Table 1 coating raw material proportioning and the anti-electromagnetic interference formation of plate 1-3
The voltage stability test:
Comparative example: do not adopt antistatic storage battery provided by the invention with plate.
Under same experimental situation, antistaticly be strapped on the storage battery provided by the invention, with this storage battery energising 2 hours, simultaneously with the energising of the storage battery in the comparative example 2 hours, the voltage stability situation of observing above-mentioned storage battery with plate 1-3.
Table 2 is antistatic with the influence of plate 1-3 to battery tension stability
| Embodiment 1 | |
|
Comparative example | |
| Voltage rises | ?3％ | ?5％ | ?5％ | 10％ |
By result in the table 2 as can be known, bondage has the antistatic voltage rising 3-5% that uses the storage battery of plate 1-3, and does not have the bondage antistatic voltage of the storage battery of plate 1-3 of using provided by the invention to raise 10% in the Comparative Examples.
The automobile power test:
Test vehicle: Mazda Road Star, 1600cc, NA car
The first test group: antistaticly be strapped in air filter, the storage battery of automobile respectively with what the invention described above provided with plate 1, and on the spark plug;
The second test group: antistaticly be strapped in yellow line, air inlet pipe, the inlet manifold of automobile respectively with what the invention described above provided with plate 1, and on the blast pipe;
Contrast test group: bondage antistatic automobile with plate provided by the invention not.
Adopt the Dynapack method that above-mentioned 3 groups of test groups are tested, test result is observed Fig. 6 and Fig. 7, and in Fig. 6 and Fig. 7, L1 is the test result of contrast test group, and L2 is the test result of the first test group, and L3 is the test result of the second test group.
As shown in Figure 6, abscissa is an engine speed in the drawings, and ordinate is a moment of torsion.By data among the figure as can be known, under identical engine speed, the moment of torsion of the first test group and the second test group is suitable, all be higher than the contrast test group, hence one can see that,, no matter should antistaticly be installed in any position and all can reach the electromagnetic interference that causes by static between the elimination electric equipment, the effect of raising vehicle torsional moment as long as the antistatic plate of use provided by the present invention is installed at automotive interior with plate.
As shown in Figure 7, abscissa is an engine speed in the drawings, and ordinate is a horsepower (power).By data among the figure as can be known, under identical engine speed, the horsepower of automobile quite in the first test group and the second test group, all be higher than the contrast test group, hence one can see that,, no matter should be antistatic be installed in any position and all can reach and eliminate the electromagnetic interference that causes by static between the electric equipment as long as the antistatic plate of use provided by the present invention is installed at automotive interior, the effect of raising automobile horsepower under the maintenance situation on correct igniting opportunity with plate.
What provided in the present invention antistaticly in being applied to automobile the time, except above-mentioned beneficial effect, also has following advantage with plate:
The light-duty vehicle emission testing:
Measuring unit: Beijing Institute of Technology's vehicle dynamic quality and specialized laboratory of emission test country.
Car is used in test: the JETTA car, license plate number: capital KG4523, vehicle have exercised mileage 26606km, and test vehicle has been removed exhaust purifier.
Method of testing: start emission testing according to " light vehicle pollutant emission limit and method of measurement (Chinese III, IV stage) are (GB18352.3-2005) ".
Test is described: twice test carried out in front and back, test for the first time is that the antistatic vehicle with plate of bondage the present invention is not carried out emission test, test for the second time is to finish prepared antistatic with plate 1 of the vehicle bondage embodiment of the invention 1 after the test for the first time, and carry out some days road worthiness operation, this test is left standstill after 15 days for operation and was carried out the test second time in one day.Test result is listed table 3 and table 4 in.
Table 3. light-duty vehicle emission testing
Table 4 light-duty vehicle emission testing rate of change
| Operating mode | THC | NOx | CO | CO 2 | Oil consumption |
| (50-60)Km/h | 10.55 | 21.17 | 16.04 | 8.69 | 9.06 |
| (60-70)Km/h | 12.21 | 21.74 | 18.35 | 10.63 | 10.94 |
| (70-80)Km/h | 8.24 | 12.59 | 8.78 | 8.40 | 8.4 |
| (80-90)Km/h | 9.46 | 17.19 | 16.44 | 8.57 | 8.96 |
| Beijing is comprehensive | 10.45 | 10.91 | 8.88 | 6.79 | 10.76 |
| Beijing at a high speed | 12.21 | 13.09 | 17.11 | 8.34 | 14.71 |
By data in table 3 and the table 4 as can be known, prepared antistatic of the bondage embodiment of the invention 1 in light-duty vehicle with plate 1, can effectively reduce the emission index of all gases in the tail gas of vehicle, can be when reducing carbon compound, oxynitrides is also reduced to some extent, and then reduction helps the environmental protection trip of automobile to the pollution of environment.In addition, also reduced in the prior art, in post-processing technique, added the extraneous expense of oxidation catalysis (agent) and reduction catalysts (agent) in order to handle discharging tail gas.
The diesel engine performance contrast test:
Measuring unit: Beijing Institute of Technology's vehicle dynamic quality and specialized laboratory of emission test country.
Development engine: 4JB1 (turbocharged and intercooled diesel engine), the Feitian automobile production
Test basis: diesel load attribute testing.
Test is described: add commercially available diesel oil in diesel engine, when diesel engine speed was got 1800r/min, 3200r/min respectively, testing load was each parameter and the oil consumption and the smoke intensity of 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 10% engine.
With antistatic in the above-mentioned diesel engine bondage embodiment of the invention 2 with plate 2, turn round and carry out the load-characteristic test of each rotating speed after 2 hours, when diesel engine speed was got 1800r/min, 3200r/min respectively, testing load was each parameter and the oil consumption and the smoke intensity of 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 10% engine.Test structure is listed table 5 and table 6 in.
Table 5 1800r/min diesel engine performance contrast test
Table 6 3200r/min diesel engine performance contrast test
By data in table 5 and the table 6 as can be known, the prepared antistatic specific fuel consumption that not only can reduce diesel engine with plate 2 of the bondage embodiment of the invention 2 in diesel engine.Can reduce simultaneously the discharging of 85% black smoke.Avoided in the existing diesel because of installing the phenomenon that the after-treatment device that reduces black smoke (as add processing such as fixed filter on blast pipe) consumes burnup and reduces horsepower additional.
More than explanation is a preferred implementation of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. antistatic plate of using, comprise metallic plate (2) and the coating (3) that goes up formation at described metallic plate (2), it is characterized in that, described coating (3) is applied by the coating that comprises piezoelectric, dielectric and silicone material and forms, and the weight ratio of piezoelectric and dielectric is 1.2-1.6 in the described coating: 1.
2. the antistatic plate of using according to claim 1 is characterized in that, described piezoelectric is barium titanate, lead zirconate titanate, modification lead zirconate titanate, lead meta-columbute, lead niobate barium lithium, perhaps modified lead titanate.
3. the antistatic plate of using according to claim 1 is characterized in that described metallic plate is the reelability metallic plate.
4. the antistatic plate of using according to claim 1 is characterized in that, the thickness of described coating (3)≤20 μ m.
5. the antistatic plate of using according to claim 1, when described antistatic when being used for petrol engine with plate, the weight ratio of piezoelectric and dielectric is 1.2: 1.
6. the antistatic plate of using according to claim 1, when described antistatic when being used for Diesel engine with plate, the weight ratio of piezoelectric and dielectric is 1.5: 1.
7. an anti static device is characterized in that, antistaticly is formed by stacking with the plate multilayer by claim 1 is described.
8. anti static device according to claim 7 is characterized in that, described device has the antistatic sandwich of passing through aluminum netted (mesh) net clamping with the stack body of plate of multilayer.
9. each described antistaticly it is characterized in that among the claim 1-6, antistaticly attach or be strapped on the parts of described automotive system with plate with described with plate application in automotive system.
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Cited By (3)
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| CN104602426A (en) * | 2015-01-17 | 2015-05-06 | 钟志强 | Automobile destaticizing apparatus mounted and connected by toggle clip |
| CN108872836A (en) * | 2018-07-09 | 2018-11-23 | 深圳市合信达控制系统有限公司 | A kind of detection method and device of control panel anti-electromagnetic-radiation ability |
| CN109074949A (en) * | 2016-04-22 | 2018-12-21 | 西门子股份公司 | HG ü air choking-winding and manufacturing method |
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