CN103682689B - A kind of fluid conductive medium earthing device and method - Google Patents
A kind of fluid conductive medium earthing device and method Download PDFInfo
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- CN103682689B CN103682689B CN201310674592.0A CN201310674592A CN103682689B CN 103682689 B CN103682689 B CN 103682689B CN 201310674592 A CN201310674592 A CN 201310674592A CN 103682689 B CN103682689 B CN 103682689B
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Abstract
The invention discloses a kind of fluid conductive medium earthing device and method, relate to a kind of grounding technology, aim to provide a kind of fluid conductive medium earthing device and method.The technology of the present invention main points: comprise control signal output unit and conducting medium spray unit; Described control signal output unit starts for controlling conducting medium spray unit or stops spray fluid conducting medium to the space between object ground connection position and the earth, forms charge discharging resisting passage to make described conducting medium between object ground connection position and the earth.
Description
Technical field
The present invention relates to a kind of grounding technology, especially a kind of device and method utilizing fluid conductive media implementation ground connection.
Background technology
This kind of mobile object of picture vehicle, often exposes in an atmosphere, is easily struck by lightning.On the other hand, in motion process, due to the friction back and forth of car body, be easy to accumulate electrostatic.No matter be the protection to thunder and lightning, or the protection to electrostatic, ground connection is all very the key link.The effect of ground connection is, for protector set up one with to the earth carry out charge discharging resisting passage, charge discharging resisting can be entered the earth.
The earthing mode that vehicle is conventional is an iron chains or conductive rubber in tow at the bottom of car, relies on the contact of iron chains or conductive rubber and the earth, solution problem with grounding.But loss is very fast after iron chains or conductive rubber and the earth rubs, when be short to be not connected with the earth time, forfeiture grounding function.In addition, the connection of iron chains or conductive rubber and the earth is not tight, will upspring, cause imperfect earth time in motion process.Electric charge is difficult to effectively release, and usually causes vehicle damage.There is the occasion of flammable and explosive substance, also can cause fire, blast, serious threat people personal safety and property safety.
Traditional earth electrode is all solid, needs to be fixed in the earth, obviously, is difficult to application aprowl.Can think, also effectively not solve problem with grounding as this kind of mobile object of vehicle.Build the ground connection of MOVING STRUCTURE, earth electrode must possess conductivity on the one hand, can set up charge pathway, and earth electrode must not be fixed on the other hand, can not have Hard link with the earth, can follow mobile object motion.These 2 ground connection causing mobile object are generally acknowledged difficult problems.
Summary of the invention
Technical problem to be solved by this invention is: for above-mentioned Problems existing, provides a kind of fluid conductive medium earthing device and method.
A kind of fluid conductive medium earthing device disclosed by the invention, comprises control signal output unit and conducting medium spray unit;
Described control signal output unit starts for controlling conducting medium spray unit or stops spray fluid conducting medium to the space between object ground connection position and the earth, forms charge discharging resisting passage to make described conducting medium between object ground connection position and the earth.
Preferably, described control signal output unit is timing control unit or manual control unit.
Preferably, described control signal output unit is detecting signal unit;
Described detecting signal unit be used for inspected object and object ground connection triggering signal in the environment, after the ground connection triggering signal being more than or equal to secure threshold being detected, export effective ground connection control signal to conducting medium spray unit;
Described conducting medium spray unit is used for storing fluid conducting medium, and for spraying the fluid conductive medium of its internal reservoir after receiving effective ground connection control signal;
Described detecting signal unit also for can't detect object and object ground connection triggering signal in the environment or ground connection triggering signal be less than secure threshold time export invalid ground connection control signal to described conducting medium spray unit;
Described conducting medium spray unit also sprays described conducting medium for stopping when receiving invalid ground connection control signal.
Preferably, described detecting signal unit comprises probe, signal processing circuit and ground connection control signal generation circuit; Described probe be used for inspected object and object the signal of telecommunication of ground connection triggering signal size described in ground connection triggering signal in the environment output-response, the output of described probe and the input of signal processing circuit couple; Described signal processing circuit is used for carrying out preliminary treatment to ground connection triggering signal; The input that the output of described signal processing circuit and ground connection control signal produce circuit couples; Described ground connection control signal produces when the circuit ground connection triggering signal be used for after the pre-treatment is more than or equal to secure threshold and produces and export effective ground connection control signal, produces and export invalid ground connection control signal when ground connection triggering signal is after the pre-treatment less than secure threshold.
Preferably, described detecting signal unit comprises probe, integrating circuit, linear amplifier circuit, filter circuit and comparison circuit;
Described probe be used for inspected object and object ground connection triggering signal in the environment the magnitude of voltage of output-response ground connection triggering signal size;
Output and the integrating circuit input of probe couple;
The output of integrating circuit and the input of linear amplifier circuit couple;
The output of linear amplifier circuit and the input of filter circuit couple;
The output of filter circuit and the first input end of comparator couple;
Second input of comparator couples secure threshold voltage source, and comparator is used for exporting described ground connection control command according to the magnitude relationship of first input end voltage and the second input terminal voltage.
Preferably, described detecting signal unit comprises probe, pre-amplification circuit, linear amplifier circuit, filter circuit and comparison circuit;
Described probe be used for inspected object and object ground connection triggering signal in the environment the magnitude of voltage of output-response ground connection triggering signal size;
Output and the pre-amplification circuit input of probe couple;
The output of pre-amplification circuit and the input of linear amplifier circuit couple;
The output of linear amplifier circuit and the input of filter circuit couple;
The output of filter circuit and the first input end of comparator couple;
Second input of comparator couples secure threshold voltage source, and comparator is used for exporting described ground connection control command according to the magnitude relationship of first input end voltage and the second input terminal voltage.
Preferably, described detecting signal unit comprises probe, waveform steepness circuit, bleeder circuit and comparison circuit;
First output of probe is coupled by the first input end of waveform steepness circuit and bleeder circuit, and the second input of bleeder circuit and the second output of probe couple; The output of bleeder circuit and the first input end of comparator couple;
Second input of comparator couples secure threshold voltage source, and comparator is used for exporting described ground connection control command according to the magnitude relationship of first input end voltage and the second input terminal voltage.
Preferably, described waveform steepness circuit is gas discharge tube.
Preferably, described detecting signal unit comprises the order probe, filter circuit and the signal that couple and changes
circuit; The useful signal that signaling conversion circuit is used for probe exports is converted to the effective grounding control signal of electric form or non-electrical form and exports, and the invalid signals also for being exported by probe is converted to the invalid ground connection control signal of electric form or non-electrical form and exports.
Preferably, described detecting signal unit comprises probe, A/D convertor circuit, microprocessor and the signaling conversion circuit that order couples;
Microprocessor is used for the effective or invalid ground connection control signal exporting electric form or non-electrical form according to probe output control signal change-over circuit.
Preferably, described ground connection triggering signal is thunder and lightning signal or electrostatic signal;
Wherein, described thunder and lightning signal comprises current signal, voltage signal, electric field intensity signal and the magnetic field intensity signal under thunder and lightning environment;
Current signal under thunder and lightning environment comprises lightning discharge current signal and corona current signal;
Voltage signal under thunder and lightning environment comprises inductor ends voltage signal, capacitor terminal voltage signal, resistor terminal voltage signal and surge protector terminal voltage signal in protective equipment;
Described electrostatic signal comprises electrostatic induced current signal, electrostatic potential signal and static electric field strength signal.
Preferably, conducting medium spray unit comprises conducting medium reservoir vessel, gas path control valve, sprinkler control valve, sprinkler and supervisory instrument;
Described conducting medium reservoir vessel is for storing gaseous state conducting medium; Described conducting medium reservoir vessel is communicated with gas path control valve; Described gas path control valve is connected with the source of the gas of gaseous state conducting medium;
Described sprinkler is communicated with described conducting medium reservoir vessel by sprinkler control valve, and described sprinkler control valve is used for opening under the control of the effective or invalid ground connection control command of control signal output unit or closing;
Described supervisory instrument is for monitoring the pressure of the gaseous state conducting medium in container and showing.
Preferably, described conducting medium spray unit comprises conducting medium reservoir vessel, fluid path control valve, gas path control valve, sprinkler and supervisory instrument;
Described conducting medium reservoir vessel is communicated with fluid path control valve, and liquid conducting medium is flowed into by described fluid path control valve and is stored in conducting medium reservoir vessel;
Described conducting medium reservoir vessel is also communicated with gas path control valve; Described gas path control valve is connected with the air compressor on vehicle; Gas path control valve is used for opening under the control of the effective or invalid ground connection control command of control signal output unit or turning off;
Described sprinkler is communicated with described conducting medium reservoir vessel;
Described supervisory instrument is for monitoring the liquid conducting medium capacity in container and the pressure in container and showing.
Preferably, described conducting medium spray unit comprises conducting medium reservoir vessel, sprinkler control valve and sprinkler;
Conducting medium reservoir vessel is used for storage of liquids conducting medium, sprinkler control valve is opened or is turned off under the control of the effective or invalid ground connection control command of control signal output unit, and the liquid conduction medium in conducting medium reservoir vessel is sprayed away by sprinkler under the effect of chemical force; Described liquid conduction medium is water and CO
2the mixture of gas, and water and CO
2the volume ratio of gas is less than 1:1.
Preferably, described conducting medium spray unit comprises liquid pressurizing apparatus, controller and sprinkler;
Described liquid pressurizing apparatus has liquid inlet, and liquid conduction medium is entered by liquid inlet, and sprinkler is communicated with the liquid outlet of liquid pressurizing apparatus;
Controller is used for controlling starting working of liquid pressurizing apparatus further according to the effective or invalid ground connection control command of control signal output unit and quitting work;
During work, liquid pressurizing apparatus is sprayed away after the liquid conduction medium supercharging of input by sprinkler; When quitting work, liquid pressurizing apparatus turns off the path of liquid inlet and liquid outlet.
Preferably, described conducting medium spray unit comprises reservoir vessel, flow valve, pressure regulating valve, gas path control valve, conductive solids powder container, mixing arrangement, sprinkler control valve and sprinkler;
Described reservoir vessel is communicated with described flow valve, and liquid enters reservoir vessel by flow valve;
Reservoir vessel is communicated with pressure regulating valve by gas path control valve, and gas enters in reservoir vessel by pressure regulating valve, gas path control valve;
Reservoir vessel is communicated with mixing arrangement, and the liquid in reservoir vessel enters mixing arrangement under the pressurization of gas, and conductive solids powder unit is communicated with mixing arrangement;
Mixing arrangement is used for allocating pressed powder and liquid according to a certain percentage, makes it form suspension-turbid liquid;
Mixing arrangement is also communicated with sprinkler by sprinkler control valve; Sprinkler control valve is used for opening under the control of the effective or invalid ground connection control command of control signal output unit or turning off.
Preferably, described conducting medium is with column or mist ejection.
Preferably, fluid conductive medium is gaseous state, liquid state or suspension-turbid liquid state, is present in environment after conducting medium that is liquid or suspension-turbid liquid state sprays out with aerosol state.
Present invention also offers a kind of guard system, comprise protector, solid earthing device and aforesaid fluid conductive medium earthing device; Described protector realizes multipoint earthing by solid earthing device and fluid conductive medium earthing device.
Present invention also offers another kind of guard system, comprise protector, solid earthing device and aforesaid fluid conductive medium earthing device; Described protector is by fluid conductive medium earthing device, solid earthing device realize single-point grounding successively.
The invention provides a kind of lightning protection system, comprise thunderstorm electricity protective device and aforesaid fluid conductive medium earthing device; The downlead of described thunderstorm electricity protective device and the probe of fluid conductive medium earthing device couple; Described thunderstorm electricity protective device is grounded by fluid conductive medium earthing device.
A kind of systems for providing electrostatic discharge protection in the present invention, comprises electrostatic protection apparatus and aforesaid fluid conductive medium earthing device; Described electrostatic protection apparatus is grounded by fluid conductive medium earthing device.
A kind of vehicle thunder and lightning grounding system in the present invention, comprises the thunderstorm electricity protective device be positioned on vehicle, is arranged on the earth terminal of the fluid conductive medium earthing device as previously described of vehicle rear and vehicle tail; Thunderstorm electricity protective device and earth terminal have holding wire and are connected; Probe and the holding wire of described fluid conductive medium earthing device couple; The sprinkler of fluid conductive medium earthing device is opening down and be positioned on same vertical straight line with earth terminal; Fluid conductive medium earthing device is when the ground connection triggering signal on holding wire is more than or equal to secure threshold, and to earth terminal spray fluid conducting medium, described fluid conductive medium flows through earth terminal until the earth.
A kind of vehicle static grounding system, comprises aforesaid fluid conductive medium earthing device; The detecting signal unit of fluid conductive medium earthing device is positioned on vehicle, and the sprinkler of fluid conductive medium earthing device is positioned at the below of vehicle tail, and the open horizontal of sprinkler is towards vehicle front.
A kind of fluid conductive medium earthing method in the present invention, comprises the following steps:
Inspected object and object ground connection triggering signal in the environment;
Ground connection triggering signal detected and ground connection triggering signal is more than or equal to secure threshold time, to object ground connection position and the earth between spray fluid conducting medium, with make described conducting medium object ground connection position and the earth between form charge discharging resisting passage;
When described ground connection triggering signal disappears or ground connection triggering signal is less than secure threshold, stop spraying conducting medium; Or after spraying conducting medium certain hour, stop spraying conducting medium.
Preferably, conducting medium is the conducting medium of liquid conducting medium, gaseous state conducting medium or suspension-turbid liquid state.
Preferably, described ground connection triggering signal is thunder and lightning signal or electrostatic signal;
Wherein, described thunder and lightning signal comprises current signal, voltage signal, electric field intensity signal and the magnetic field intensity signal under thunder and lightning environment;
Current signal under thunder and lightning environment comprises lightning discharge current signal and corona current signal;
Voltage signal under thunder and lightning environment comprises inductor ends voltage signal, capacitor terminal voltage signal, resistor terminal voltage signal and surge protector terminal voltage signal in protective equipment;
Described electrostatic signal comprises electrostatic induced current signal, electrostatic potential signal and static electric field strength signal.
Preferably, described in thunder and lightning environment, conducting medium sprays out with the form of column.
Preferably, described in electrostatic environment, spray out with vaporific form.
Preferably, conducting medium sprays out in the form of an aerosol.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, fluid conductive medium earthing device disclosed by the invention and method pass through fluid conductive medium at object, as the protector of vehicle, vehicle, and set up charge discharging resisting passage between the earth, solve the problem that the object always existed is difficult to ground connection at the volley dramatically;
2, the present invention proposes and a kind of and existingly add with downlead the technology that technology that solid earth electrode is feature is different, the guard technology system of perfect further grounding technology system and thunder and lightning, electrostatic;
3, due to the present invention, to build the medium parameter of passage consistent, ensure that the consistency of channel impedance largely, the reflection in junction caused because of impedance mismatch can be reduced, this leakage path, had the effect of downlead and earth electrode concurrently, purposes has more diversity;
4, owing to have employed fluid conductive medium, can soil moisture be increased, reduce soil resistivity;
5, owing to being that fluid media (medium) builds passage with the earth, reduce destruction of surface degree, the speed simultaneously formed is more quick;
6, when there being multiple device same position ground connection, suitably can increase impedance ground, weakening because earth potential strikes back the impact caused device, also weaken between the device that causes because of ground connection and influence each other;
7, due to input type, conducting medium Parameter adjustable, the present invention both can be applicable to lightning protection system, can be applicable to systems for providing electrostatic discharge protection again, and application is more extensive;
8, the channel impedance built due to the present invention can adjust according to pressure and conducting medium, can realize channel impedance Rapid Variable Design, and also can be grounded simultaneously and switch with earth-free action, the controllability of ground connection increases greatly;
9, the present invention comprises multiple control modes, selects Non-follow control, greatly can reduce the complexity of device, cost-saving; Select timing controlled, the work of people can be alleviated; Selection pilot signal controls, can the intellectuality of implement device, reduces the loss of medium;
10, conducting medium spray unit of the present invention comprises various ways, is conducive to the needs being adapted to different application environment;
11, have employed mixing arrangement, the extemporaneous preparation of medium can be realized, be more conducive to supplementing in time of conducting medium;
12, have employed the container of band pressure store function, realize the medium when not having ambient pressure and spray.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the basic structure block diagram of earthing device of the present invention;
Fig. 2 is earthing device first embodiment schematic block circuit diagram of the present invention;
Fig. 3 is earthing device second embodiment schematic block circuit diagram of the present invention;
Fig. 4 is earthing device of the present invention 3rd embodiment schematic block circuit diagram;
Fig. 5 is detecting signal unit schematic block circuit diagram in earthing device of the present invention 3rd embodiment;
Fig. 6 is detecting signal unit first embodiment schematic block circuit diagram of the present invention;
Fig. 7 is detecting signal unit second embodiment schematic block circuit diagram of the present invention;
Fig. 8 is detecting signal unit of the present invention 3rd embodiment schematic block circuit diagram;
Fig. 9 is detecting signal unit of the present invention 4th embodiment schematic block circuit diagram;
Figure 10 is detecting signal unit of the present invention 5th embodiment schematic block circuit diagram;
Figure 11 is detecting signal unit of the present invention 6th embodiment schematic block circuit diagram;
Figure 12 is conducting medium spray unit first embodiment block diagram in earthing device of the present invention;
Figure 13 is conducting medium spray unit second embodiment block diagram in earthing device of the present invention;
Figure 14 is conducting medium spray unit the 3rd embodiment block diagram in earthing device of the present invention;
Figure 15 is conducting medium spray unit the 4th embodiment block diagram in earthing device of the present invention;
Figure 16 is conducting medium spray unit the 5th embodiment block diagram in earthing device of the present invention;
Figure 17 is conducting medium storage container example structure figure of the present invention;
Figure 18 is the schematic block circuit diagram that the present invention and solid earthing device use simultaneously;
Figure 19 be the present invention and solid earthing device with the use of another kind of situation;
Figure 20 is the application schematic diagram of the present invention in lightning conductor system;
Figure 21 is the application schematic diagram of the present invention in electrostatic protection system;
Figure 22 is the schematic diagram of the present invention's typical apply in lightning conductor system;
Figure 23 is the schematic diagram of the present invention's typical apply in electrostatic protection system.
Mark in figure: probe 1, preamplifier 2, differential amplifier 3, passive filter circuit 4, voltage comparator circuit 5, the control circuit 6 of sprinkler, sprinkler 7, fluid conductive medium 8, grounding device 9, lightning rod 10.
Embodiment
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
A kind of fluid conductive medium earthing method in the present invention, comprises the following steps:
Inspected object and object ground connection triggering signal in the environment;
Ground connection triggering signal detected and ground connection triggering signal is more than or equal to secure threshold time, to object ground connection position and the earth between spray fluid conducting medium, with make described conducting medium object and the earth between form charge discharging resisting passage;
When described ground connection triggering signal disappears or ground connection triggering signal is less than secure threshold, stop spraying conducting medium; Or after spraying conducting medium certain hour, stop spraying conducting medium.
Described ground connection triggering signal is thunder and lightning signal or electrostatic signal;
Wherein, described thunder and lightning signal comprises current signal, voltage signal, electric field intensity signal and the magnetic field intensity signal under thunder and lightning environment;
Current signal under thunder and lightning environment comprises lightning discharge current signal and corona current signal;
Voltage signal under thunder and lightning environment comprises inductor ends voltage signal, capacitor terminal voltage signal, resistor terminal voltage signal and surge protector terminal voltage signal in protective equipment;
Described electrostatic signal comprises electrostatic induced current signal, electrostatic potential signal and static electric field strength signal.
In order to reach good earthing effect, described in thunder and lightning environment, conducting medium sprays out with the form of column.
Described in electrostatic environment, conducting medium sprays out with vaporific form, and the conducting medium sprayed out exists in the form of an aerosol with environment.
As Fig. 1, the fluid conductive medium earthing device in the present invention comprises control signal output unit and conducting medium spray unit.
Described control signal output unit is used for exporting ground connection control signal to conducting medium spray unit; Control conducting medium spray unit start or stop spray fluid conducting medium.
Described conducting medium spray unit is used for storing fluid conducting medium, and for completing the sprinkling action consistent with ground connection control signal according to ground connection control signal, when ground connection control signal is effective, conducting medium spray unit sprays the fluid conductive medium of its internal reservoir to object ground connection position to the space of the earth, forms charge discharging resisting passage to make described conducting medium between object ground connection position and the earth.Described conducting medium spray unit, also for when ground connection control signal is invalid, stops spraying described conducting medium.
As Fig. 2, in the first embodiment circuit theory of earthing device of the present invention, control signal output unit is timing control unit.Described timing control unit can set and sprays interval time and spray the duration, timing control unit carries out timing, when timing reaches and sprays interval time, export effective ground connection control signal, conducting medium spray unit starts spray fluid conducting medium, and timing control unit continues timing, when timing reaches the sprinkling duration, timing control unit exports invalid ground connection control signal, and described conducting medium spray unit stops spray fluid conducting medium.
As Fig. 3, in the second embodiment circuit theory of earthing device of the present invention, control signal output unit is manual control unit.Described manual control unit realizes manually exporting effective ground connection control signal, and described conducting medium spray unit is sprayed.Described manual control unit also manually can export invalid ground connection control signal, and described conducting medium spray unit stops spraying.
As Fig. 4, in the first embodiment circuit theory of earthing device of the present invention, control signal output unit is detecting signal unit.
Described detecting signal unit in inspected object and object ground connection triggering signal in the environment, after the ground connection triggering signal being more than or equal to secure threshold being detected, export effective ground connection control signal to conducting medium spray unit.
Described detecting signal unit also for can't detect object and object ground connection triggering signal in the environment or ground connection triggering signal be less than secure threshold time export invalid ground connection control signal to described conducting medium spray unit.
Described conducting medium spray unit is used for the fluid conductive medium spraying its internal reservoir when receiving effective ground connection control signal, and described conducting medium spray unit, also for when receiving invalid ground connection control signal, stops spraying described conducting medium.
As Fig. 5, in the 3rd embodiment of earthing device of the present invention in detecting signal unit circuit theory diagrams, described detecting signal unit comprises at least probe, signal processing circuit and ground connection control signal and produces circuit; Described probe be used for inspected object and object ground connection triggering signal in the environment, and the magnitude of voltage of output-response ground connection triggering signal size, the output of described probe and the input of signal processing circuit couple; Described signal processing circuit is used for carrying out preliminary treatment to ground connection triggering signal, if the process such as filtering, amplification and level conversion are to make subsequent conditioning circuit can better utilize this ground connection triggering signal.The input that the output of described signal processing circuit and ground connection control signal produce circuit couples; Described ground connection control signal produces when the circuit ground connection triggering signal be used for after the pre-treatment is more than or equal to secure threshold and produces and export effective ground connection control signal.
Described ground connection triggering signal can be as current signal, voltage signal, electric field intensity signal or magnetic field intensity signal.Current signal wherein under thunder and lightning environment comprises lightning discharge current signal and corona current signal.Voltage signal under thunder and lightning environment comprises inductor ends voltage signal, capacitor terminal voltage signal, resistor terminal voltage signal and surge protector terminal voltage signal in protector.Electrostatic signal comprises the voltage signal of the electrostatic charging body under electrostatic environment.Select different probes, different ground connection triggering signals can be detected.
Concrete, Fig. 6 is the detecting signal unit circuit embodiments detecting lightning discharge current signal.The probe of detecting signal unit circuit is Luo-coil, through thunder discharge line conductor in the middle of described Luo-coil.Described Luo-coil relies on the principle of the mutual inductance between thunder discharge line conductor to carry out the collection of signal.Collection signal exports to rear stage processing of circuit.Rear stage circuit comprises integrating circuit, linear amplifier circuit, filter circuit and comparison circuit.Integrating amplification circuit receives the signal of telecommunication that Luo-coil exports, after carrying out integration, integral result is exported to linear amplifier circuit, the output of linear amplifier circuit and the input of filter circuit couple, the output of filter circuit and the first input end of comparison circuit couple, second input termination secure threshold voltage source of comparison circuit, comparator exports described effective or invalid ground connection control command according to the magnitude relationship of first input end and the second input.
Fig. 7 is the detecting signal unit circuit embodiments detecting corona current signal.The probe of detecting signal unit circuit is resistor, and described resistor string is associated in the middle of thunder discharge circuit, and when thunder discharge circuit has corona current to flow through, the terminal voltage of resistor can change.The terminal voltage of resistor exports to rear stage processing of circuit.In the present embodiment, rear stage circuit comprises pre-amplification circuit, linear amplifier circuit, filter circuit and comparison circuit.
Resistor and pre-amplification circuit input couple; Pre-amplification circuit is used for carrying out elementary amplification to described resistor terminal voltage, in general pop one's head in export voltage signal comparatively weak, be generally a millivolt rank, pre-amplification circuit need there is larger input impedance, the impact on signal can be lowered, reduce the distortion of signal.
The output of pre-amplification circuit and the input of linear amplifier circuit couple; Linear amplifier circuit is amplified to described magnitude of voltage the scope that comparison circuit can process further.
The output of linear amplifier circuit and the input of filter circuit couple; Filter circuit is used for the noise in filtering voltage signal.
The output of filter circuit and the first input end of comparator couple; Second input of comparator couples secure threshold voltage source, and comparator is used for exporting described ground connection control command according to the magnitude relationship of first input end voltage and the second input terminal voltage.When the output signal of filter circuit is more than or equal to secure threshold voltage source, it is effectively that comparator exports ground connection control command, otherwise then invalid.
Fig. 8 is the detecting signal unit circuit embodiments of the capacitor terminal voltage signal detected in protector.The waveform steepness circuit connected in series of detecting signal unit circuit between the capacitor and the bleeder circuit of detecting signal unit circuit of protector, the voltage signal of described waveform steepness circuit on the capacitor of steepness protector.Connect bleeder circuit after described waveform steepness circuit, the signal of described bleeder circuit exports to rear stage processing of circuit, as the comparison circuit in previous embodiment.
Wherein waveform steepness circuit is specially gas discharge tube, and the capacitor one end in protector is connected with one end of bleeder circuit by gas discharge tube, and the other end of the capacitor in protector is connected with the bleeder circuit other end.Bleeder circuit can be made up of two or more resistant series, and two resistance points of common connection are bleeder circuit output.When the capacitor terminal voltage in protector is less, gas discharge tube open circuit, bleeder circuit two ends no-voltage, bleeder circuit output voltage is 0, after capacitor terminal voltage is elevated to certain value, gas discharge tube conducting, capacitor terminal voltage is applied on bleeder circuit, and bleeder circuit exports the magnitude of voltage after dividing potential drop.Device in waveform steepness circuit also can be air gap, multilayer gap, varistor and Transient Suppression Diode.
Fig. 9 is the detecting signal unit embodiment of the voltage signal of the electrostatic charging body detected under electrostatic environment, and it comprises probe 1, preamplifier 2, differential amplifier 3, passive filter circuit 4, voltage comparator circuit 5.Above-mentioned five parts couple in turn.
Probe comprises two capacitors and a resistance, described first capacitor is connected with the second capacitor, one end of resistance is connected with the points of common connection of two capacitors, the other end of resistance and the other end of the second capacitor are as the output of popping one's head in, and the other end of the first capacitor is the input of probe.When there is electrostatic potential, the capacitor terminal voltage in probe 1 rises.Capacitor electrode capacitance and withstand voltage are selected according to electrostatic charge to be measured and electrostatic potential secure threshold herein, and capacitor type is plate condenser, and capacitor uses high insulating material as medium, guarantee the electrostatic induced current of capacitor Leakage Current much smaller than flowing.Capacitor form in probe 1 can be static capacitive, orbiting vane or capacitance-type vibration formula, preferred capacitance < 1nF.
The voltage signal of 1 preamplifier 2 output-response electrostatic potential size of popping one's head in.Preamplifier 2 is made up of operational amplifier A 1 integrated package.Because the voltage signal of 1 output of popping one's head in is very faint, the operational amplifier A 1 in preamplifier 2 selects the electrometer type operational amplifier of extremely low input bias current and ultra-high input impedance.As selected input bias current < 1nA here, the electrometer type operational amplifier of input impedance > 100M Ω.
Differential amplifier 3 adopts classical differential amplifier circuit, effectively suppresses common-mode signal, improves signal to noise ratio.Operational amplifier A 2 is consistent with A3 parameter, and multiplication factor controls at 50 ~ 100 times.A4 forms second level amplifying circuit.
Passive filter circuit 4 is π type filter circuit, the radio-frequency component of filtered signal.
The voltage signal that filter circuit 4 exports is delivered to the inverting input of comparator A6 by voltage comparator circuit 5 by a voltage follower A5, the effect of voltage follower A5 improves input impedance.Secure threshold voltage source connects direct voltage source Vcc by potentiometer one end, and other end ground connection realizes.Regulator potentiometer, just can obtain the secure threshold voltage of needs, this secure threshold voltage gives the normal phase input end of comparator A6.
According to Fig. 9, those skilled in the art are not difficult to learn, the operation principle of the present embodiment is, when the voltage amplitude of the reaction electrostatic potential size after processing is more than or equal to secure threshold voltage, the control signal that comparator A6 exports is low level.Light-emitting diode D1 in the control circuit 6 of sprinkler and the equal conducting of optical coupling isolator Q1, then triode Q2 conducting, relay K M must conduct, and then sprinkler is opened.When the voltage amplitude of the reaction electrostatic potential size after processing is less than secure threshold voltage, the control signal that comparator A6 exports is high level.Light-emitting diode D1 in the control circuit 6 of sprinkler and optical coupling isolator Q1 all turns off, and then triode Q2 also turns off, and relay K M closes, and then sprinkler does not carry out sprinkling action.
Figure 10 is the detecting signal unit circuit embodiments detecting electric field strength.The probe of detecting signal unit circuit adopts outsourcing electric field instrument, after electric field instrument detects the thunder and lightning electric field or static electric field signal that in environment, existence exceedes secure threshold, export a useful signal, this useful signal is transferred to signaling conversion circuit after circuit after filtering, and this useful signal is converted to the effective grounding control signal of electric form or non-electrical form by signaling conversion circuit.When electric field instrument exports as invalid signals, the invalid signals be considered as during signal in logic as not having, signaling conversion circuit exports invalid ground connection control signal.
Figure 11 is the detecting signal unit circuit embodiments detecting magnetic field intensity.The probe of detecting signal unit circuit adopts outsourcing magnetic field instrument, and the signal of magnetic field instrument exports to rear stage processing of circuit.When existence in environment exceedes the thunder and lightning magnetic field of secure threshold, magnetic field instrument exports useful signal, otherwise exports invalid signals.Rear stage circuit comprises A/D convertor circuit, microprocessor and the signaling conversion circuit that order couples.Microprocessor exports the effective or invalid ground connection control signal of electric form or non-electrical form according to magnetic field instrument output signal control signal change-over circuit.
As Figure 12, conducting medium spray unit comprises conducting medium reservoir vessel, gas path control valve, sprinkler control valve, sprinkler and supervisory instrument.
Described conducting medium reservoir vessel is for storing gaseous state conducting medium; Described conducting medium reservoir vessel is communicated with gas path control valve; Described gas path control valve is connected with the source of the gas of gaseous state conducting medium; Described sprinkler is communicated with described conducting medium reservoir vessel by sprinkler control valve, and described sprinkler control valve is used for opening under the control of the effective or invalid ground connection control command of signal output unit or closing; Described supervisory instrument is for monitoring the pressure of the gaseous state conducting medium in container and showing.Described monitor can comprise Pressure monitoring parts, and the pressure size in monitoring memory, then shows force value.
As Figure 13, another embodiment of the conducting medium spray unit in the present invention is such: comprise conducting medium reservoir vessel, fluid path control valve, gas path control valve, sprinkler and supervisory instrument.Described conducting medium reservoir vessel is communicated with fluid path control valve, and liquid conducting medium is flowed into by described fluid path control valve and is stored in conducting medium reservoir vessel; Described conducting medium reservoir vessel is also communicated with gas path control valve; Described gas path control valve is connected with air pump, as the air compressor on vehicle; Described sprinkler is communicated with described conducting medium reservoir vessel; Control gas path control valve open under the control of the effective or invalid ground connection control command of control signal output unit or turn off; When gas path control valve is opened, gas enters conducting medium reservoir vessel, and reservoir vessel internal pressure raises, and liquid conducting medium is sprayed away by sprinkler.Described supervisory instrument is for monitoring the liquid conducting medium capacity in container and the pressure in container and showing.
As Figure 14, conducting medium spray unit can also be such: comprise conducting medium reservoir vessel, sprinkler control valve and sprinkler.Can storage of water and carbon dioxide in conducting medium reservoir vessel, such as, in 1 individual ponding, dissolve the carbon dioxide being greater than equivalent volumes.Sprinkler control valve is opened or is turned off under the control of the effective or invalid ground connection control command of control signal output unit.When sprinkler control valve is opened, the aqueous solution being dissolved with carbon dioxide is sprayed away by sprinkler under the effect of chemical force.
As Figure 15, conducting medium spray unit can also be such: comprise liquid pressurizing apparatus, controller and sprinkler.Described liquid pressurizing apparatus has liquid inlet, and liquid conduction medium is entered by liquid inlet, and controller is for controlling liquid pressurizing apparatus work, and sprinkler is communicated with the liquid outlet of liquid pressurizing apparatus.Controller controls starting working of liquid pressurizing apparatus further according to the effective or invalid ground connection control command of control signal output unit and quits work.During work, liquid pressurizing apparatus is sprayed away after the liquid conduction medium supercharging of input by sprinkler, and when quitting work, liquid pressurizing apparatus turns off the path of liquid inlet and liquid outlet.Described liquid pressurizing apparatus can be pump.
As Figure 16, conducting medium spray unit comprises reservoir vessel, flow valve, pressure regulating valve, gas path control valve, conductive solids powder container, mixing arrangement, sprinkler control valve and sprinkler.Described reservoir vessel is communicated with described flow valve, and liquid enters reservoir vessel by flow valve.Reservoir vessel is communicated with pressure regulating valve by gas path control valve, and gas is entered in reservoir vessel by pressure regulating valve, gas path control valve.Reservoir vessel is communicated with mixing arrangement, and the liquid in reservoir vessel enters mixing arrangement under the pressurization of gas, and conductive solids powder unit is communicated with mixing arrangement, and conductive solids powder wherein can enter mixing arrangement.Mixing arrangement is used for allocating pressed powder and liquid according to a certain percentage, makes it form suspension-turbid liquid.Mixing arrangement is also communicated with sprinkler by sprinkler control valve.Sprinkler control valve is used for opening under the control of the effective or invalid ground connection control command of control signal output unit or turning off.When sprinkler control valve is opened, the suspension-turbid liquid being mixed with conductive solids powder is sprayed away by sprinkler.The present embodiment is used for the occasion of conducting medium situ configuration.
The fluid conductive medium mentioned in above-described embodiment can be gaseous state, liquid state or the suspension-turbid liquid that mixed by conductive solids powder and liquid, can be specifically following a few class:
A, running water, mineral water, rainwater.
B, antistatic agent
Cationic antistatic agent: the active part of molecule is cation, mainly comprises amine salt solution, quaternary ammonium salt alkyl amino acid salting liquid etc., is mainly quarternary ammonium salt compound solution, as: alkyl tertiary amine chloride solution; Alkyl tertiary amine nitrate solution; Alkyl tertiary amine sulfuric acid solution; Alkyl tertiary amine phosphate solution.
Anionic antistatic agent: the active part of molecule is anion, comprising alkyl sulfonic acid salting liquid, sulfate liquor, phosphoric acid derivatives solution, higher fatty acids salting liquid, carboxylic acid salt solution.Cationic moiety mostly is the ion, ammonium, organic amine, amino alcohol etc. of alkali metal or alkaline-earth metal.
Non-ionic antistatic agent: mainly contain the compound solution such as macrogol ester or ethers solution, polyol fatty acid ester solution, fatty acid alkanol amides solution, fatty amine ethyoxyl ether.
C, conduction liquid also can be the powder of conductor material and the suspension-turbid liquid of liquid composition.As: metal system conductive agent: as silver powder, copper powder, nickel powder etc.
Burning system conductive agent: as nanometer antimony-doped stannic oxide (ATO), iron oxide, zinc oxide, titanium dioxide etc.
Carbon series conductive agent material: as carbon black, graphite etc.
Combined conductive agent: as composite powder and composite fibre.
As Figure 17, conducting medium reservoir vessel can use the container of band storage compression functions.As bellows pressure storage and diaphragm type pressure storage.On the one hand, gas and conducting medium different spaces, conducting medium is purer, guarantees parameter stability.On the other hand, when the external world does not have air pressure, because there is storage pressure, therefore can interim voltage supply.
Described sprinkler can have been bought on the market, also can according to sprinkling morphological requirements self manufacture.Select or make different sprinklers by oneself, selecting suitable sprinkler, and then the state of the conducting medium sprayed out can be controlled.As conducting medium with column ejection or vaporific (as sprinkler be shower nozzle form time) ejection.
Can select suitable container pressure and sprinkler through many experiments, in lightning protection system, multiply columnar shape is more conducive to realizing fully contacting of object and the earth; In systems for providing electrostatic discharge protection, the droplet making the conducting medium liquid that sprays out form diameter to be less than 100 microns, thus form aerosol, is more conducive to realizing object and fully contacting greatly.
Figure 18 ~ 23 respectively show several use situations of earthing device in the present invention.
Figure 18, be by earthing device of the present invention and original solid earthing device with the use of situation.Earthing device of the present invention and solid earthing device parallel combination are formed grounding system, and described grounding system is connected with protector, forms guard system.
Figure 19, be by earthing device of the present invention and original solid earthing device with the use of another kind of situation.By earthing device of the present invention and solid earthing device system in series, earthing device of the present invention serves the downlead effect in guard system.
Figure 20 is connected with thunderstorm electricity protective device through downlead by fluid conductive medium earthing device, forms lightning protection system.When thunder and lightning signal being detected, described fluid conductive medium earthing device sprays conducting medium to the earth, for described thunderstorm electricity protective device provides the passage of thunder and lightning electric charge of releasing, completes thunder and lightning and releases.Earthing device of the present invention serves the earth electrode effect in guard system.
Figure 21 is connected with electrostatic protection apparatus by fluid conductive medium earthing device, forms systems for providing electrostatic discharge protection.When electrostatic signal being detected, described fluid conductive medium earthing device sprays conducting medium to the earth, for described electrostatic protection apparatus provides the passage of static electricity discharge electric charge, completes electrostatic leakage.
Figure 22 is the more typical use scenes of earthing device of the present invention, the use of earthing device in lightning protection.Described earthing device is arranged on vehicle rear, probe 1 detects thunderstorm electricity protective device 10, as lightning rod, with the thunder and lightning signal on the connecting line of the earth terminal 9 of vehicle, when signal reaches a certain amount of, conducting medium 8 sprays out with the form of column by fluid conductive medium earthing device 7, and conducting medium forms the passage of the charge discharging resisting between earth terminal 9 and the earth, completes releasing of thunder and lightning electric charge.
As shown in figure 23, be another more typical use scenes of earthing device of the present invention.The use of earthing device in electrostatic defending.Described earthing device is arranged on lower vehicle, the probe 1 of earthing device detects the electrostatic signal of car body, when electrostatic signal reaches a certain amount of, and earthing device action, fluid media (medium) forms the passage of the charge discharging resisting between vehicle and the earth, completes releasing of vehicle electric charge.
In the embodiment of Figure 23, the quantity of detecting signal unit can be multiple, and each detecting signal unit described all has control signal with described conducting medium spray unit and is connected; The conducting medium of its internal reservoir is sprayed onto vehicle by described conducting medium spray unit when detecting signal unit described in any one exports effective ground connection control command.
Described conducting medium spray unit is also for stopping spraying described conducting medium when receiving the invalid ground connection control command that whole detecting signal unit exports.
Those skilled in the art can suspect, if detecting signal unit output logic 0 is effective ground connection control signal, when logical one is invalid ground connection control signal, use a multi input and door can realize above-mentioned control logic.As, the control signal of each detecting signal unit connects each input of multi input and door respectively, is connected the switch of sprinkler with the output of door, and as relay, open sprinkler occasion faster for requiring, switch can be controllable silicon or field effect transistor.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (18)
1. a fluid conductive medium earthing device, is characterized in that, comprises control signal output unit and conducting medium spray unit;
Described control signal output unit starts for controlling conducting medium spray unit or stops spray fluid conducting medium to the space between object ground connection position and the earth, forms charge discharging resisting passage to make described conducting medium between object ground connection position and the earth;
Described control signal output unit is detecting signal unit;
Described detecting signal unit be used for inspected object and object ground connection triggering signal in the environment, after the ground connection triggering signal being more than or equal to secure threshold being detected, export effective ground connection control signal to conducting medium spray unit;
Described detecting signal unit also for can't detect object and object ground connection triggering signal in the environment or ground connection triggering signal be less than secure threshold time export invalid ground connection control signal to described conducting medium spray unit.
2. a kind of fluid conductive medium earthing device according to claim 1, is characterized in that, described detecting signal unit comprises probe, signal processing circuit and ground connection control signal and produces circuit; Described probe be used for inspected object and object the signal of telecommunication of ground connection triggering signal size described in ground connection triggering signal in the environment output-response, the output of described probe and the input of signal processing circuit couple; Described signal processing circuit is used for carrying out preliminary treatment to ground connection triggering signal; The input that the output of described signal processing circuit and ground connection control signal produce circuit couples; Described ground connection control signal produces when the circuit ground connection triggering signal be used for after the pre-treatment is more than or equal to secure threshold and produces and export effective ground connection control signal, produces and export invalid ground connection control signal when ground connection triggering signal is after the pre-treatment less than secure threshold.
3. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, described detecting signal unit comprises probe, integrating circuit, linear amplifier circuit, filter circuit and comparison circuit;
Described probe be used for inspected object and object ground connection triggering signal in the environment the magnitude of voltage of output-response ground connection triggering signal size;
Output and the integrating circuit input of probe couple;
The output of integrating circuit and the input of linear amplifier circuit couple;
The output of linear amplifier circuit and the input of filter circuit couple;
The output of filter circuit and the first input end of comparison circuit couple;
Second input of comparison circuit couples secure threshold voltage source, and comparison circuit is used for exporting described ground connection control signal according to the magnitude relationship of first input end voltage and the second input terminal voltage.
4. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, described detecting signal unit comprises probe, pre-amplification circuit, linear amplifier circuit, filter circuit and comparison circuit;
Described probe be used for inspected object and object ground connection triggering signal in the environment the magnitude of voltage of output-response ground connection triggering signal size;
Output and the pre-amplification circuit input of probe couple;
The output of pre-amplification circuit and the input of linear amplifier circuit couple;
The output of linear amplifier circuit and the input of filter circuit couple;
The output of filter circuit and the first input end of comparison circuit couple;
Second input of comparison circuit couples secure threshold voltage source, and comparison circuit is used for exporting described ground connection control signal according to the magnitude relationship of first input end voltage and the second input terminal voltage.
5. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, described ground connection triggering signal is thunder and lightning signal or electrostatic signal;
Wherein, described thunder and lightning signal comprises current signal, voltage signal, electric field intensity signal and the magnetic field intensity signal under thunder and lightning environment;
Current signal under thunder and lightning environment comprises lightning discharge current signal and corona current signal;
Voltage signal under thunder and lightning environment comprises inductor ends voltage signal, capacitor terminal voltage signal, resistor terminal voltage signal and surge protector terminal voltage signal in protective equipment;
Described electrostatic signal comprises electrostatic induced current signal, electrostatic potential signal and static electric field strength signal.
6. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, conducting medium spray unit comprises conducting medium reservoir vessel, gas path control valve, sprinkler control valve, sprinkler and supervisory instrument;
Described conducting medium reservoir vessel is for storing gaseous state conducting medium; Described conducting medium reservoir vessel is communicated with gas path control valve; Described gas path control valve is connected with the source of the gas of gaseous state conducting medium;
Described sprinkler is communicated with described conducting medium reservoir vessel by sprinkler control valve, and described sprinkler control valve is used for opening under the control of the effective or invalid ground connection control signal of control signal output unit or closing;
Described supervisory instrument is for monitoring the pressure of the gaseous state conducting medium in container and showing.
7. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, described conducting medium spray unit comprises conducting medium reservoir vessel, fluid path control valve, gas path control valve, sprinkler and supervisory instrument;
Described conducting medium reservoir vessel is communicated with fluid path control valve, and liquid conducting medium is flowed into by described fluid path control valve and is stored in conducting medium reservoir vessel;
Described conducting medium reservoir vessel is also communicated with gas path control valve; Described gas path control valve is connected with the air compressor on vehicle; Gas path control valve is used for opening under the control of the effective or invalid ground connection control signal of control signal output unit or turning off;
Described sprinkler is communicated with described conducting medium reservoir vessel;
Described supervisory instrument is for monitoring the liquid conducting medium capacity in container and the pressure in container and showing.
8. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, described conducting medium spray unit comprises conducting medium reservoir vessel, sprinkler control valve and sprinkler;
Conducting medium reservoir vessel is used for storage of liquids conducting medium, sprinkler is communicated with conducting medium reservoir vessel by sprinkler control valve, sprinkler control valve is opened or is turned off under the control of the effective or invalid ground connection control signal of control signal output unit, and the liquid conduction medium in conducting medium reservoir vessel is sprayed away by sprinkler under the effect of chemical force; Described liquid conduction medium is water and CO
2the mixture of gas, and water and CO
2the volume ratio of gas is less than 1:1.
9. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, described conducting medium spray unit comprises liquid pressurizing apparatus, controller and sprinkler;
Described liquid pressurizing apparatus has liquid inlet, and liquid conduction medium is entered by liquid inlet, and sprinkler is communicated with the liquid outlet of liquid pressurizing apparatus;
Controller is used for controlling starting working of liquid pressurizing apparatus further according to the effective or invalid ground connection control signal of control signal output unit and quitting work;
During work, liquid pressurizing apparatus is sprayed away after the liquid conduction medium supercharging of input by sprinkler; When quitting work, liquid pressurizing apparatus turns off the path of liquid inlet and liquid outlet.
10. a kind of fluid conductive medium earthing device according to claim 1, it is characterized in that, described conducting medium spray unit comprises reservoir vessel, flow valve, pressure regulating valve, gas path control valve, conductive solids powder container, mixing arrangement, sprinkler control valve and sprinkler;
Described reservoir vessel is communicated with described flow valve, and liquid enters reservoir vessel by flow valve;
Reservoir vessel is communicated with pressure regulating valve by gas path control valve, and gas enters in reservoir vessel by pressure regulating valve, gas path control valve;
Reservoir vessel is communicated with mixing arrangement, and the liquid in reservoir vessel enters mixing arrangement under the pressurization of gas, and conductive solids powder container is communicated with mixing arrangement;
Mixing arrangement is used for allocating pressed powder and liquid according to a certain percentage, makes it form suspension-turbid liquid;
Mixing arrangement is also communicated with sprinkler by sprinkler control valve; Sprinkler control valve is used for opening under the control of the effective or invalid ground connection control signal of control signal output unit or turning off.
11. a kind of fluid conductive medium earthing device according to claim 1, is characterized in that, described conducting medium is with column or mist ejection.
12. a kind of fluid conductive medium earthing device according to claim 11, it is characterized in that, fluid conductive medium is gaseous state, liquid state or suspension-turbid liquid state, is present in environment after conducting medium that is liquid or suspension-turbid liquid state sprays out with aerosol state.
13. 1 kinds of fluid conductive medium earthing methods, is characterized in that, comprise the following steps:
Inspected object and object ground connection triggering signal in the environment;
Ground connection triggering signal detected and ground connection triggering signal is more than or equal to secure threshold time, to object ground connection position and the earth between spray fluid conducting medium, with make described conducting medium object ground connection position and the earth between form charge discharging resisting passage;
When described ground connection triggering signal disappears or ground connection triggering signal is less than secure threshold, stop spraying conducting medium; Or after spraying conducting medium certain hour, stop spraying conducting medium.
14. a kind of fluid conductive medium earthing methods according to claim 13, it is characterized in that, conducting medium is the conducting medium of liquid conducting medium, gaseous state conducting medium or suspension-turbid liquid state.
15. a kind of fluid conductive medium earthing methods according to claim 13, it is characterized in that, described ground connection triggering signal is thunder and lightning signal or electrostatic signal;
Wherein, described thunder and lightning signal comprises current signal, voltage signal, electric field intensity signal and the magnetic field intensity signal under thunder and lightning environment;
Current signal under thunder and lightning environment comprises lightning discharge current signal and corona current signal;
Voltage signal under thunder and lightning environment comprises inductor ends voltage signal, capacitor terminal voltage signal, resistor terminal voltage signal and surge protector terminal voltage signal in protective equipment;
Described electrostatic signal comprises electrostatic induced current signal, electrostatic potential signal and static electric field strength signal.
16. a kind of fluid conductive medium earthing methods according to claim 13, it is characterized in that, in thunder and lightning environment, conducting medium sprays out with the form of column.
17. a kind of fluid conductive medium earthing methods according to claim 13, it is characterized in that, in electrostatic environment, conducting medium sprays out with vaporific form.
18. a kind of fluid conductive medium earthing methods according to claim 16 or 17, it is characterized in that, conducting medium sprays out in the form of an aerosol.
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| CN104538751B (en) * | 2014-12-31 | 2017-05-17 | 四川中光防雷科技股份有限公司 | Flexible grounding device and method and system thereof |
| CN105401043A (en) * | 2015-11-13 | 2016-03-16 | 太仓荣中机电科技有限公司 | Current on/off high-performance metal material |
| CN105873343B (en) * | 2016-01-29 | 2019-01-11 | 福建省依新汽车用品有限公司 | Mobile object is discharged without fretting wear over the ground eliminates electrostatic method |
| WO2017128897A1 (en) * | 2016-01-29 | 2017-08-03 | 钟志强 | Electrostatic discharge and elimination method for a moving object free from friction and abrasion caused by ground |
| CN107199972A (en) * | 2017-05-16 | 2017-09-26 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle body static elimination method and system |
| CN108284808A (en) * | 2017-12-26 | 2018-07-17 | 成都鼎信致远科技有限公司 | High-risk vehicle electrostatic protection apparatus |
| CN108834011B (en) * | 2018-05-30 | 2020-08-11 | 出门问问信息科技有限公司 | Method and device for performing electrostatic protection on microphone |
| CN109066242B (en) * | 2018-07-23 | 2022-10-18 | 蔚来(安徽)控股有限公司 | Charging gun, charging device and charging method |
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