CN102523674B - Handheld plasma electric torch - Google Patents
Handheld plasma electric torch Download PDFInfo
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- CN102523674B CN102523674B CN201110391504.7A CN201110391504A CN102523674B CN 102523674 B CN102523674 B CN 102523674B CN 201110391504 A CN201110391504 A CN 201110391504A CN 102523674 B CN102523674 B CN 102523674B
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Abstract
The present invention relates to a kind of Handheld plasma electric torch, comprise electric torch casing, battery carrier, rechargeable battery, low tension switch, stepup transformer, first resistance, second resistance, electrode interface, electrode, stepup transformer fixed mount and electrode interface fixed mount, rechargeable battery is connected with stepup transformer by low tension switch, battery carrier is placed in the bottom of electric torch casing, rechargeable battery is placed in electric torch casing, and fixed by battery carrier, electric torch casing is the cavity of hollow and upper end is provided with the opening of hold electrodes, and there is the portion of the handle be made up of electric conducting material, stepup transformer is fixed on the inside of electric torch casing by stepup transformer fixed mount, the high-voltage output end of stepup transformer is connected with electrode interface through the first resistance, the low-pressure end of stepup transformer is connected with the portion of the handle of electric torch casing through the second resistance.The present invention can solve expensive, bulky, the power work of power supply that existing atmospheric pressure plasma device exists must ground connection, can not move, the problem such as the plasma area that produces is little.
Description
Technical field
The invention belongs to plasma producing apparatus, be specifically related to a kind of Handheld plasma electric torch.
Background technology
Atmospheric non-equilibrium plasma is the plasma under atmospheric pressure produced, and the temperature of electronics can up to tens thousand of degree, and the temperature of ion and neutral particle is much smaller than electron temperature, close to or suitable with room temperature, therefore the temperature of discharge gas is also close to room temperature.Nonthermal plasma can be used as high activity reactant and is widely used in multiple fields, as plasma-deposited and plated film, etching, surface treatment, chemical cleaning method, biological cleaning and medical application.
In the prior art, under atmospheric pressure, the production method of plasma mainly contains: dielectric barrier discharge (DBD) plasma, plasma jet, micropore electric discharge etc.
Below two kinds of common existing nonthermal plasma devices:
(1) dielectric barrier discharge (DBD) plasma jet apparatus, see China Patent Publication No. 01232770, patent name is " device for medium to block discharging plasma body jet current ", it is disclosed that a kind of device for medium to block discharging plasma body jet current, this device as shown in Figure 1, comprise medium tube 22, high-field electrode 7, gas regulating switch 24, work gas body source 25, power supply 1, annular high-field electrode 7 is embedded in the tube wall of medium tube 22 top, be connected with power supply 1 by wire 23, medium tube 22 is communicated with work gas body source 25, the flow of working gas 26 is controlled by gas regulating switch 24.Its power supply is AC power, pulse dc power or radio-frequency power supply.During the work of this device, need work gas body source and gas flow control device, its driving power is external power supply, expensive, bulky, installation complexity, the low-pressure end of power-supply device and body fuselage all need to provide earth potential by wired earth, therefore, the generation device of supply unit and plasma can not be integrated, miniaturized, is not suitable for applying widely, on a large scale.
(2) non-equilibrium air plasma fluidic device, see YongCheolHongetal. " Microplasmajetatatmosphericpressure " ApplPhysicsLetter89, 221504 (2006), which describe under a kind of atmospheric pressure take nitrogen as the device that working gas produces plasma jet, this device as shown in Figure 2, comprise electrode 7, grounding electrode 10, medium disk 27, media Containers 22 and (interchange) power supply 1, electrode 7 and grounding electrode 10 are separated by medium disk 27, and be jointly placed in media Containers 22, (interchange) power supply 1 connecting electrode 7 and grounding electrode 10,
During work, (interchange) power supply 1 is adjusted to high pressure, frequency 20 KHz, with the flow speed of 3 liters/second to media Containers 22 input service gas 26 (nitrogen), between electrode 7 and grounding electrode 10, carry out electric discharge produce plasma, and eject plasma jet 8 from gas delivery port 28 with the speed of about 255 meter per seconds, the temperature of jet only at end just close to room temperature, move to the direction near nozzle, the temperature of jet 8 raises very fast.The arc discharge occurred between electrode 7 and 10 is produced by boasting indeed through at a high speed (close to the velocity of sound) air-flow by the air-spray that this device produces, the temperature of jet only at end just close to room temperature, unsafe factor is existed for biomedical applications; And the power supply of this device is also external AC power, the low-pressure end of power-supply device and body fuselage all need to provide earth potential by wired earth, and therefore, single unit system can not realize integration, miniaturization, low cost.
As mentioned above, similar deficiency is all there is: all need costliness, heavy, huge power-supply device to produce high pressure in prior art, all power-supply device low-pressure ends and body fuselage all need to provide earth potential by wired earth, and, mostly need to pass into working gas, these factors all make the cost producing plasma extremely expensive, use very complicated, cause the generation device of plasma can not accomplish integration, compact, low cost.The large-scale application of atmospheric pressure plasma and popularity are very restricted.Although atmospheric pressure plasma has unique advantage in the application in a lot of field, due to the reason such as cost and operability, atmospheric pressure plasma techniques and device are never promoted and apply.
Summary of the invention
The object of the present invention is to provide a kind of convenient mobile, use simple Handheld plasma electric torch, it can solve, and the power supply that existing atmospheric pressure plasma device exists is expensive, bulky, power work must ground connection, can not move, the problem such as the plasma area that produces is little.
The present invention is achieved by the following technical solutions:
A kind of Handheld plasma electric torch, comprise electric torch casing, battery carrier, rechargeable battery, low tension switch, stepup transformer, first resistance, second resistance, electrode interface, electrode, stepup transformer fixed mount and electrode interface fixed mount, rechargeable battery is connected with stepup transformer by low tension switch, battery carrier is placed in the bottom of electric torch casing, rechargeable battery is placed in electric torch casing, and fixed by battery carrier, electric torch casing is the cavity of hollow and upper end is provided with the opening of hold electrodes, and there is the portion of the handle be made up of electric conducting material, stepup transformer is fixed on the inside of electric torch casing by stepup transformer fixed mount, the high-voltage output end of stepup transformer is connected with electrode interface through the first resistance, the low-pressure end of stepup transformer is connected with the portion of the handle of electric torch casing through the second resistance, electrode interface is fixed on electric torch casing inside, central axis place in the opening that electrode is arranged on electric torch casing, and by fixing with the connection of electrode interface, plasma electric torch does not need wired earth.
Handheld plasma electric torch of the present invention comprises nozzle further, nozzle is arranged on the opening of electric torch casing, nozzle is the microporous pipe of straight tube, bend pipe or upper end closure, the cross section of nozzle is circle, pancake, taper shape, arc, tubaeform or polygon, the internal diameter in the cross section of nozzle is minimum is 10 μm, external diameter is minimum is 100 μm, and nozzle is made up of dielectrics such as polytetrafluoroethylene alkoxy resin, plastics.
The portion of the handle of electric torch casing is positioned at the bottom of shell, its shape is cylindrical, the oblate bodily form, the square bodily form or irregularly shaped, the shape of electric torch casing upper end open is circle, taper shape, circular arc, tubaeform or other are irregularly shaped, for the insulating material such as polytetrafluoroethylene alkoxy resin, plastics are made outside electric torch casing portion of the handle.
A kind of Handheld plasma electric torch, comprise electric torch casing, battery carrier, rechargeable battery, low tension switch, stepup transformer, first resistance, second resistance, 3rd resistance, electrode interface, electrode, stepup transformer fixed mount, electrode interface fixed mount and high-tension cable, rechargeable battery is connected with stepup transformer by low tension switch, electric torch casing comprises high pressure shell and low pressure shell, battery carrier is placed in the bottom of low pressure shell, rechargeable battery is placed in low pressure shell, and fixed by battery carrier, low pressure shell and high pressure shell all have the portion of the handle be made up of electric conducting material, low pressure shell is the cavity of hollow and upper end has the connector of high-tension cable, the screen of high-tension cable one end is connected with the portion of the handle of low pressure shell, the screen of the high-tension cable other end is connected with the portion of the handle of high pressure shell, stepup transformer is fixed on the inside of low pressure shell by stepup transformer fixed mount, the high-pressure side of stepup transformer is connected with the high pressure core of high-tension cable one end by the first resistance, the high pressure core of the high-tension cable other end is connected with electrode interface by the 3rd resistance, the low-pressure end of stepup transformer is connected with the portion of the handle of low pressure shell by the second resistance, electrode interface is fixed on high pressure enclosure, high pressure shell is the cavity of hollow, the lower end of high pressure shell has the connector of high-tension cable, the upper end of high pressure shell has the opening of hold electrodes, electrode is arranged on the central axis place in high pressure shell upper end open, and by being connected and fixed with electrode interface, plasma electric torch does not need wired earth.
Handheld plasma electric torch of the present invention also comprises nozzle, nozzle is arranged on the opening of torch high pressure shell, nozzle is straight tube or bend pipe, the cross section of nozzle is circle, pancake, taper shape, arc, tubaeform or polygon, the internal diameter in the cross section of nozzle is minimum is 10 μm, external diameter is minimum is 100 μm, and nozzle is made up of dielectrics such as polytetrafluoroethylene alkoxy resin, plastics.
Handheld plasma electric torch of the present invention also comprises single-ended sealing tube, its upper end open place being arranged at high pressure shell is for accommodating electrode, and be connected with the portion of the handle of high pressure shell, single-ended sealing tube is straight tube or bend pipe, the tube wall of single-ended sealing tube and sealing end have equally distributed micropore, the pore diameter range of micropore be 50 μm to 2mm, pitch of holes be 500 μm to 5mm, the caliber of single-ended sealing tube is greater than the diameter of electrode.
The shape of the portion of the handle of low pressure shell and the portion of the handle of high pressure shell is cylindrical, the oblate bodily form, the square bodily form or irregularly shaped, and low pressure shell and the material of high pressure shell except portion of the handle are the insulating material such as polytetrafluoroethylene alkoxy resin, plastics.
Rechargeable battery is the battery of 3 ~ 12V, and stepup transformer is cubic shaped, and stepup transformer is of a size of: long be less than 300mm, is widely less than 100mm, and higher primary school is in 100mm.
Rechargeable battery is the battery of 3 ~ 12V, and stepup transformer is cylindrical shape or oblate body shape, and stepup transformer is of a size of: basal diameter is less than 300mm, and higher primary school is in 100mm.
Electrode is that aciculiform, Straight, elbow-shaped or micropore are tubular, and when electrode is aciculiform, its diameter is 100 μm ~ 1mm.When electrode be Straight, elbow-shaped or micropore tubular time, its internal diameter is 10 μm ~ 1mm, and external diameter is for being less than 2mm.
Electrode is the electrode sets composed in parallel by multiple electrode, composition large area array arrangement, and the arrangement of this electrode sets is linear, circular and polygon.
The high-voltage output end of stepup transformer is direct voltage or pulsed dc voltage.
The present invention includes following advantage:
1) use rechargeable battery to provide energy, as driving source, make power supply and plasma generator integration, small and exquisite, convenient, safe, cheap;
2) circuit such as power supply, stepup transformer, resistance, electrode connects and concentrates on battery case inside, whole apparatus integration, simple to operate, safety;
3) because whole electric torch (comprising high-voltage output end) does not need wired earth, make device of the present invention depart from the constraint on ground and the constraint of fixed location use, hand-held use, convenience are moved, facilitate public use, are also beneficial to commercial Application;
4) because the present invention can connect high-tension cable easily, make high pressure shell (plasma generator part) do less, move more easily and operate, being very suitable for biomedical applications.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art device for medium to block discharging plasma body jet current.
Fig. 2 is the structural representation that prior art exchanges non-equilibrium air plasma fluidic device.
Fig. 3 is the structural representation of first embodiment of Handheld plasma electric torch of the present invention.
Fig. 4 is the structural representation of second embodiment of Handheld plasma electric torch of the present invention.
Fig. 5 is the structural representation of the 3rd embodiment of Handheld plasma electric torch of the present invention.
Fig. 6 is the structural representation of the 4th embodiment of Handheld plasma electric torch of the present invention.
Fig. 7 (a), Fig. 7 (b) are respectively end view and the vertical view of the needle electrode of Handheld plasma electric torch of the present invention.
Fig. 8 is the end view of the syphon shape electrode of Handheld plasma electric torch of the present invention.
The end view that Fig. 9 (a), Fig. 9 (b) are the electrode sets of Handheld plasma electric torch of the present invention and vertical view.
The vertical view of Figure 10 to be electrode sets be circular array.
Figure 11 (a), Figure 11 (b) are respectively the sectional view of a kind of nozzle of Handheld plasma electric torch of the present invention and axial cutaway view.
Figure 12 (a), Figure 12 (b) are respectively the sectional view of the another kind of nozzle of Handheld plasma electric torch of the present invention and axial cutaway view.
Figure 13 (a), Figure 13 (b) are respectively the sectional view of another nozzle of Handheld plasma electric torch of the present invention and axial cutaway view.
Figure 14 (a), Figure 14 (b) are respectively the sectional view of the single-ended sealing tube of Handheld plasma electric torch of the present invention and axial cutaway view.
Figure 15 is the axial cutaway view of the electric torch casing of Handheld plasma electric torch of the present invention.
The axial cutaway view of a kind of low pressure shell that Figure 16 (a) is Handheld plasma electric torch of the present invention.
The axial cutaway view of a kind of high pressure shell that Figure 16 (b) is Handheld plasma electric torch of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 3, the Handheld plasma electric torch of first embodiment of the invention comprises rechargeable battery 1, low tension switch 2, stepup transformer 3, first resistance 4, second resistance 9, electrode interface 6, electrode 7, nozzle 11, electric torch casing 12, the portion of the handle 10 of electric torch casing, battery carrier 13, electrode interface fixed mount 15 and stepup transformer fixed mount 16.Rechargeable battery 1 is connected with the input of stepup transformer 3 by low tension switch 2, the high-voltage output end of stepup transformer 3 is connected with electrode interface 6 through the first resistance 4, it is inner that electrode interface 6 is fixed on electric torch casing 12, electrode 7 is connected with electrode interface 6, and being fixed on center line axis place in electric torch casing upper end open by electrode interface 6, the low-pressure end of stepup transformer 3 is connected with the portion of the handle 10 of electric torch casing through the second resistance 9.
During work, handheld flashlight shell (the portion of the handle design of electric torch casing holds the position of torch at most convenient), human body only need open rechargeable battery 1 by low tension switch 2, uniform plasma will be produced in the front end of electrode 7, electric torch casing 12 opening and in nozzle 11, and spray in air along nozzle, at nozzle 11 outer formation certain length, uniform, plasma beam 8, the shape and size of nozzle can change the shape and size of plasma.When human body or other handling objects are near plasma beam 8, until contact nozzle 11, in the process of even contact electrode 7, electric discharge is all glow discharge, and can not produce spark or electric arc, therefore, this plasma is safe.By regulating the resistance in the voltage of input power, the parameter of stepup transformer and circuit, the parameter of plasma (comprising length, density, temperature, size of current etc.) can be regulated.
When Handheld plasma electric torch works, stepup transformer low-voltage dc voltage is raised, and the waveform being modulated into needs: high direct voltage or pulse direct current high pressure.The through-put power of stepup transformer is less than 100W, and it is of a size of: long be less than 300mm, is widely less than 100mm, and higher primary school is in 100mm.No matter output is high direct voltage or pulse direct current high pressure, and the electric discharge of generation is all pulse glow discharge, and the frequency of this pulsed discharge and pulsewidth can change by changing circuit parameter.Between the halfwidth 10ns ~ 1us of pulsed discharge, discharge frequency scope is comparatively large, and from power frequency to radio-frequency range, therefore, the plasma that glow discharge is formed is nonequilibrium normal-temperature plasma, and human body can directly touch, without any stimulation and the burning heat sensation of electricity.
First resistance 5 is 50 kilo-ohms ~ 500 megaohms, and the second resistance 9 is 0 ~ 500 megaohm; The output voltage of rechargeable battery 1 is 3 ~ 12V, the output of stepup transformer 3 is high direct voltage or pulse direct current high pressure, the effect one of the first resistance 5 and the second resistance 9 is and the stray capacitance coupling in circuit that the electric discharge making generation is pulsed discharge, and makes electric discharge dead-beat; Secondly the effect of restricted electric current.The characteristic (length, power, temperature etc.) of plasma can be regulated and controled by changing resistance.Because the portion of the handle 10 of electric torch casing is electric conducting material, therefore, the low-voltage output of stepup transformer 3 is connected to ground through the second resistance and human body, an earth potential is provided to stepup transformer 3 by human body, the low-pressure end voltage of stepup transformer 3 is safe voltage, second resistance 9 further defines the electric current in low-pressure end loop, and therefore, handheld flashlight shell is safe and reliable.In using, even if hand does not contact the portion of the handle of electric torch casing, the stray capacitance produced due to electric torch casing is large, about 50 ~ 300pF, and the discharge and recharge of stray capacitance provides discharge loop to electrode discharge, produces plasma 8.
In experiment, the parameter of resistance and stepup transformer can be changed, specifically have following several: 1. the output voltage of rechargeable battery 1 is 12V, resistance 5 and resistance 9 are 100 megaohms, the output of stepup transformer 3 is high direct voltage or pulse direct current high pressure, in using, and the portion of the handle of hand contact electric torch casing, produce glow discharge, at the plasma beam 8 of nozzle 11 profile growth 2cm, uniform, fountain shape.Discharging current is pulse mode, frequency 10kHz, and amplitude 20mA slightly fluctuates; In using, hand does not contact the portion of the handle of electric torch casing, produces glow discharge, and at the plasma beam 8 of nozzle 11 profile growth 1.3cm, uniform, fountain shape, discharging current is pulse mode, frequency 8kHz, and amplitude 15mA slightly fluctuates; 2. the output voltage of rechargeable battery 1 is 9V, and resistance 5 is 200 megaohms, and resistance 9 is 10 megaohms, and the output of stepup transformer 3 is pulse direct current high pressure, and pulse frequency 8kHz has fluctuation, and the plasma of generation is about 2.5cm, and current amplitude 30mA slightly fluctuates.
When processed article (skin or material) are close to plasma 8, because processed article are earth potential, therefore, electric discharge is strengthened, plasma 8 also can be elongated, when processed article and nozzle are apart from 4cm, plasma 8 just can be sprayed onto on article, and this point is also highly profitable for application, because, plasma is known from experience " initiatively " and is found processed object, the free radical in plasma, active particle can be arrived on processed article efficiently, make treatment effect better.
As shown in Figure 4, the Handheld plasma electric torch of second embodiment of the invention comprises rechargeable battery 1, low tension switch 2, stepup transformer 3, first resistance 4, second resistance 9, the 3rd resistance 5, electrode interface 6, electrode 7, nozzle 11, torch low pressure shell 17, high pressure shell 18, electric torch casing portion of the handle 10, high-tension cable 19, cable interface 20, battery carrier 13, electrode interface fixed mount 15 and stepup transformer fixed mount 16.Rechargeable battery 1 is connected with the input of stepup transformer 3 by low tension switch 2, the high-voltage output end of stepup transformer 3 is connected with one end core of high-tension cable 19 through the first resistance 4, the core of the high-tension cable other end is connected with electrode interface 6 by the 3rd resistance 5, it is inner that electrode interface 6 is fixed on torch high pressure shell 18, electrode 7 is connected with electrode interface 6, and be fixed on center line axis place in torch high pressure shell 18 upper end open by electrode interface 6, the low-pressure end of stepup transformer 3 is connected with the portion of the handle 10 of electric torch casing through the second resistance 9, the bonding layer at the two ends of high-tension cable is connected with the portion of the handle of high pressure shell with the portion of the handle of low pressure shell respectively.
During work, handheld flashlight shell (portion of the handle of high pressure shell or the portion of the handle of low pressure shell), only need to open low tension switch, namely uniform plasma is produced in the upper end of electrode 7, high pressure shell 18 opening and in nozzle 11, and spray in air along nozzle, at nozzle 11 outer formation certain length, uniform, plasma beam 8, the shape and size of nozzle can change the shape and size of plasma.When human body or other handling objects are near plasma beam 8, until contact nozzle 11, in the process of even contact electrode 7, electric discharge is all glow discharge, and can not produce spark or electric arc, therefore, this plasma is safe and reliable.
First resistance and the 3rd resistance 5 are 1 kilo-ohm ~ 200 megaohms, and resistance 9 is 0 ~ 300 megaohm; The output voltage of rechargeable battery 1 is for regulate 6V, 9V and 12V respectively, the output of stepup transformer 3 is high direct voltage, because the portion of the handle of torch low pressure shell and the portion of the handle 10 of high pressure shell are electric conducting material, therefore, the low-voltage output of stepup transformer 3 is connected to ground through the second resistance and human body, second resistance 9 further defines the electric current in low-pressure end loop, and therefore, handheld flashlight shell is safe.In the program, introduce high-tension cable 19, be equivalent to the distance extending high-voltage transmission, and high pressure enclosure structure is simpler, can do smaller and more exquisite.And by the selection of the resistance to the first resistance 4 and the 3rd resistance 9, its and the parameter of cable are formed and mates, avoid the voltage that high-frequency impulse discharges and form reflection in the cable.The effect of other circuit elements and identical in embodiment one in this programme.
In test, high pressure shell is elongated cylinder, long: 10cm, and external diameter: 1cm is very small and exquisite, is convenient to, to fine structure, small inside cavity process, also be convenient to very much application medically.
As shown in Figure 5, be the 3rd embodiment of Handheld plasma electric torch of the present invention, the difference of the embodiment of the present embodiment and Fig. 4 is, the electrode in the present embodiment is elbow-shaped, bend pipe internal diameter 50 μm, external diameter 500 μm; Nozzle 11 is also bend pipe, and the cross sectional shape of nozzle is round, internal diameter 600 μm, external diameter 1mm.Because electrode and nozzle are all micron-scales, be also fine sizes at the plasma of nozzle interior and nozzle exterior, the diameter of the plasma 8 that nozzle produces outward is micron order, long 1.5cm.This minute sized plasma is suitable for etching and the cleaning of micro-structure.
As shown in Figure 6, the Handheld plasma electric torch of four embodiment of the invention comprises rechargeable battery 1, low tension switch 2, stepup transformer 3, first resistance 4, second resistance 9, 3rd resistance 5, electrode interface 6, electrode 7, torch low pressure shell 17, high pressure shell 18, electric torch casing portion of the handle 10, high-tension cable 19, cable interface 20, single-ended sealing tube 21, battery carrier 13, electrode interface fixed mount 15 and stepup transformer fixed mount 16, low pressure shell is identical with the embodiment of above-mentioned Fig. 4 with the structure of high pressure enclosure, unlike: single-ended sealing tube 21 is installed at the upper end open place of torch high pressure shell, its tube wall and sealing end have fine and closely woven, equally distributed micropore, pore diameter range: 50 μm ~ 2mm.Single-ended sealing tube 21 is connected with the conductive material portion of high pressure shell.When single-ended sealing tube 21 is made up of electric conducting material, because single-ended sealing tube 21 is connected with the electric conducting material on high pressure shell, also be earth potential, electric discharge only produces between electrode and the tube wall of single-ended sealing tube, charged particle in plasma flows to earth polar by single-ended sealing tube, free radical in plasma and active particle are then diffused out by the micropore on tube wall and sealing end, therefore, be particularly suitable for the place that human body is fragile and responsive, such as: nostril, duct, tooth or darker wound etc.When single-ended sealing tube 21 be made up of insulating material time, it does not have the impact of essence to electric discharge, just utilize the micropore restriction on tube wall and regulate the path and power of discharging, and, charged particle is adsorbed on tube wall and forms space electric field, utilize the characterization of adsorption of different materials to produce different space electric fields, also can carry out regulation and control to electric discharge.
Resistance 5 is 50 ~ 100 megaohms, and resistance 9 is 10 (± 5) megaohm; The output voltage of rechargeable battery 1 is 3V ~ 12V, and the output of stepup transformer 3 is pulse direct current high pressure.In test, single-ended sealing tube is elongated pipe, long: 10cm, external diameter: 8mm, tube wall micropore size: 100 μm, pitch-row: 2mm.
Fig. 7 (a), Fig. 7 (b) are respectively end view and the vertical view of the needle electrode of the Handheld plasma electric torch of above embodiment.
Fig. 8 is the end view of the syphon shape electrode of the Handheld plasma electric torch of above embodiment.
Fig. 9 (a), Fig. 9 (b) are respectively end view and the vertical view of the electrode sets of the Handheld plasma electric torch of above embodiment, and in Fig. 9 (b), electrode sets is square array.
The vertical view of Figure 10 to be electrode sets be circular array.
Figure 11 (a), Figure 11 (b) are respectively the sectional view of a kind of nozzle of the Handheld plasma electric torch of above embodiment and axial cutaway view, the sectional view of the nozzle that Figure 11 (a) is circular port, Figure 11 (b) is the axial cutaway view of circular port straight tube nozzle.
Figure 12 (a), Figure 12 (b) are respectively the sectional view of the another kind of nozzle of the Handheld plasma electric torch in above embodiment and axial cutaway view, Figure 12 (a) is the sectional view of the nozzle in pancake hole, and Figure 12 (b) is the axial cutaway view of pancake hole straight tube nozzle.
Figure 13 (a), Figure 13 (b) are respectively the sectional view of another nozzle of the Handheld plasma electric torch of above embodiment and axial cutaway view, the sectional view of the nozzle that Figure 13 (a) is round taper hole, the axial cutaway view that Figure 13 (b) is round taper hole elbow jet nozzles.
Figure 14 (a), Figure 14 (b) are respectively the sectional view of the single-ended sealing tube of the Handheld plasma electric torch of above 4th embodiment and axial cutaway view, Figure 14 (a) is the sectional view of single-ended sealing tube, and Figure 14 (b) is the axial cutaway view of the single-ended sealing tube of Straight.
Figure 15 is the axial cutaway view of a kind of electric torch casing of the Handheld plasma electric torch of above first embodiment, electric torch casing bottom (portion of the handle) is oblate, top is tubaeform, and oblique line portion represents insulating material, and gray shade part represents electric conducting material.
Figure 16 (a) be above second and third, the axial cutaway view of the another kind of low pressure shell of the Handheld plasma electric torch of four embodiments, oblique line portion represents insulating material, and gray shade part represents electric conducting material; Figure 16 (b) be above second and third, the axial cutaway view of the high pressure shell of the Handheld plasma electric torch of four embodiments, oblique line portion represents insulating material, and gray shade part represents electric conducting material.
Claims (1)
1. a Handheld plasma electric torch, it is characterized in that, this Handheld plasma electric torch comprises electric torch casing, battery carrier, rechargeable battery, low tension switch, stepup transformer, the first resistance, the second resistance, the 3rd resistance, electrode interface, electrode, stepup transformer fixed mount, electrode interface fixed mount and high-tension cable, described rechargeable battery is connected with described stepup transformer by described low tension switch, wherein:
Described electric torch casing comprises high pressure shell and low pressure shell, and its mesolow shell is the cavity of hollow, and its upper end is provided with the connector for connecting described high-tension cable; High pressure shell is also the cavity of hollow, and its upper end is provided with the opening for holding described electrode, and its bottom has the connector for connecting described high-tension cable equally; In addition, this low pressure shell and high pressure shell all have the portion of the handle be made up of electric conducting material, and low pressure shell and the part of high pressure shell except portion of the handle are made up of insulating material;
Described electrode interface is fixed on the inside of described high pressure shell by described electrode interface fixed mount, and described electrode is arranged on the central axis place in described opening, and by being fixed with the connection of described electrode interface;
Described battery carrier is placed in the bottom of described low pressure shell, and described rechargeable battery is placed in described low pressure shell, and its output voltage is 3V ~ 12V, and is fixed by described battery carrier;
Described stepup transformer is fixed on the inside of described low pressure shell by described stepup transformer fixed mount, and it is of a size of and long is less than 300mm, is widely less than 100mm, and higher primary school is in 100mm; And the low-voltage output of this stepup transformer is connected through the portion of the handle of described second resistance with described low pressure shell, the high-voltage output end of this stepup transformer is connected through the high pressure core of described first resistance with described high-tension cable one end, and the high pressure core of the other one end of described high-tension cable then continues to be connected with described electrode interface by described 3rd resistance;
The screen of described high-tension cable one end is connected with the portion of the handle of described low pressure shell, and the screen of the other one end of described high-tension cable is connected with the portion of the handle of described high pressure shell;
Described first resistance, the second resistance and the 3rd resistance are used for matching with the stray capacitance in circuit, make the electric discharge of generation be pulsed discharge and electric discharge dead-beat, play the effect of Limited Current simultaneously; In addition, the portion of the handle of described low pressure shell is by electric conducting material and held by operator in use, be connected to ground through described second resistance and human body owing to making the low-voltage output of described stepup transformer, there is provided an earth potential to described stepup transformer by human body, in this way, make above-mentioned Handheld plasma electric torch operationally without any need for wired earth.
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| CN103007316B (en) * | 2012-11-26 | 2015-08-19 | 肯尼斯·乔治·史密斯 | Utilize control method and the device of battery powered plasma generator |
| CN103997840B (en) * | 2014-05-30 | 2016-04-27 | 南京工业大学 | The generation device of handheld portable sliding arc low temperature plasma |
| CN103997841B (en) * | 2014-05-30 | 2016-04-27 | 南京工业大学 | The generation device of handheld portable sliding arc low temperature plasma |
| CN105879217A (en) * | 2014-10-15 | 2016-08-24 | 王守国 | Inductive plasma pen |
| WO2016112473A1 (en) * | 2015-01-12 | 2016-07-21 | 王守国 | Pluggable plasma discharge tube device |
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