CN207806817U - Spark pulse power circuit - Google Patents
Spark pulse power circuit Download PDFInfo
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- CN207806817U CN207806817U CN201721663234.XU CN201721663234U CN207806817U CN 207806817 U CN207806817 U CN 207806817U CN 201721663234 U CN201721663234 U CN 201721663234U CN 207806817 U CN207806817 U CN 207806817U
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- 230000005669 field effect Effects 0.000 claims abstract description 70
- 230000000903 blocking effect Effects 0.000 claims abstract description 46
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 230000001939 inductive effect Effects 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 12
- 230000003746 surface roughness Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 20
- 230000009102 absorption Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009760 electrical discharge machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The utility model discloses a kind of spark pulse power circuits, including working power branch made of being gone here and there successively by working power, the first current-limiting resistance, the first isolating diode and the first field-effect tube, the accessory power supply branch made of accessory power supply, the second current-limiting resistance, the second isolating diode and the second field-effect tube string, electrode tip and work end, the working power branch and accessory power supply branch circuit parallel connection form composite power source branch；Further include being connected to the blocking power branch for being located at the second field-effect tube front end on the working power anode and accessory power supply branch, the blocking power branch includes the blocking electric power loop for providing different blocking voltages and the first electronic switch for controlling blocking power branch break-make and for selecting different blocking voltages.The utility model greatly improves the surface roughness of precision component and reduces export license, while being loaded directly into technology using multichannel blocking technology and blocking voltage and being greatly improved electro-discharge machining efficiency.
Description
Technical field
The utility model is related to a kind of spark pulse power circuits, belong to technical field.
Background technology
With the continuous development of China's manufacturing industry, the processing request of precise treatment and miniaturization to complex parts is increasingly
Height since electrical discharge machining can carry out the processing of " profiling is true to nature " to superhard material or complex parts, and is widely used.
The core technology of electrical discharge machining be how to ensure effective discharge energy, and by electric energy in time, accurately pass through discharge loop
It is transported in electrode tip and work end and carries out electro-discharge machining, this depends primarily on the quality in pulse power circuit, including to because putting
The absorption and control for the surge voltage that electricity generates.But existing spark pulse power circuit is in electro-discharge machining below generally existing
It is insufficient：
First, surge voltage phenomenon is serious, discharge energy cannot be precisely controlled, leads to the surface roughness after processing
Greatly, homogeneity is poor；
Second is that due to the negative wave energy that surge voltage generates, cause export license big；
Third, surge voltage presence and interdict voltage energy composite energy not in time, processing efficiency is low；
Fourth, improve processing efficiency with the method for adding blocking voltage, due to blocking voltage turn on and off be with
Processing power source pulse same frequency, interdicting the addition opportunity of voltage can not individually control；Secondly, blocking voltage is single, Wu Fagen
Factually border need of work is selected；
Fifth, due on discharge loop, the presence of parasitic inductance and various surge voltages, each power supply hardly possible before electro-discharge machining
With the energy composite energy that complete design requires, energy is compound not in time or inaccurate, keeps interpolar energy uneven, especially fine electricity
When stream processing, discharge energy cannot be evenly distributed in finished surface, and local energy is excessive to lead to machined surface finish and flatness
Effect is not achieved.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of spark pulse power circuit, electrical fire can be made
Flower electro-discharge machining processing surface quality is good, export license is small, particularly to the high in machining efficiency of graphite material, specifically leads to
Cross following technical scheme realization：
The spark pulse power circuit of the utility model includes by working power, the first current-limiting resistance, the first isolation two
Working power branch made of pole pipe and the first field-effect tube are sequentially connected in series, by accessory power supply, the second current-limiting resistance, the second isolation
The accessory power supply branch that diode and the second field-effect tube are connected in series, electrode tip and work end, the working power branch and
Accessory power supply branch circuit parallel connection forms composite power source branch；
The source electrode of first field-effect tube and the second field-effect tube connects into the positive output end of composite power source branch, described
Working power connects into the negative output terminal of composite power source branch, the positive output end and negative output terminal difference with accessory power supply cathode
It is connected to electrode terminal and workpiece terminal；
Further include being connected to the screening for being located at the second field-effect tube front end on the working power anode and accessory power supply branch
Disconnected power branch, the blocking power branch include being hidden for providing the different blocking electric power loops for interdicting voltages and for controlling
Disconnected power branch break-make and the first electronic switches for selecting different blocking voltages.
Further, further include the high pressure branch road being connected on accessory power supply anode and positive output end, the high pressure branch road packet
Include the third current-limiting resistance, third isolating diode and third field-effect tube contacted successively, the source electrode of the third field-effect tube
It is connect with the positive output end, the drain electrode of third field-effect tube is connect with the cathode of third isolating diode.
Further, first field-effect tube, the second field-effect tube or third field-effect tube side are parallel with the first surge
Voltage inhales branch, and it includes current-limiting resistance I, Absorption Capacitance, recovery diode, the current limliting electricity that first surge voltage, which inhales branch,
Resistance I and recovery diode are in parallel, anode tap and the first field-effect tube, the second field-effect tube or third of recovery diode after parallel connection
The drain electrode of field-effect tube connects, and a pole plate of the cathode terminal of recovery diode and Absorption Capacitance connects after parallel connection, Absorption Capacitance
Another pole plate is connect with the source electrode of the first field-effect tube, the second field-effect tube or third field-effect tube.
Further, it is connected with surge voltage on the positive output end and negative output terminal of the composite power source branch and absorbs branch.
Further, it includes resistance selection unit and diode that the surge voltage, which absorbs branch, diode anode end and institute
Negative output terminal connection is stated, the cathode terminal of diode is connect with resistance selection unit one end, the other end of resistance selection unit and institute
State negative output terminal connection.
Further, it is also associated in working power anode and the negative output terminal and is formed in parallel by capacitance I and resistance II
Second surge absoption branch.
Further, the inductance branch made of resistance and inductance in parallel has been sealed between the negative output terminal and work end
Road, second electronic switch for playing short circuit to inductive branch in parallel on the inductive branch.
Further, mirror finish branch, the mirror finish branch are connected between the inductive branch and workpiece terminal
Road includes resistance III and third electronic switch, and inductive branch and workpiece are serially connected in after the resistance III and third electronic switch parallel connection
Between end.
Further, it is connected with capacitor cell between the electrode tip and workpiece terminal；The capacitor cell includes capacitance branch
Road, the capacitive branch include capacitance II, and selecting switch, the capacitive branch at least two are in series on capacitance II.
Further, first current-limiting resistance and/or the second current-limiting resistance or third current-limiting resistance are adjustable for resistance value
Resistive element, first field-effect tube, which has, is connected on working power branch road, second field-effect after multiple and parallel connection
Pipe is connected on accessory power supply branch road after having multiple and parallel connection, and the third field-effect tube is connected on high pressure after having multiple and parallel connection
Branch road.
The beneficial effects of the utility model：The blocking power branch of the utility model can provide optional for discharge loop
Different blocking voltages and opportunitys that respectively blocking voltage is added it is controllable, provide not only the efficiency of electro-discharge machining, and meet
The different material of processing need different blocking voltage, different Loading opportunities need to make electro-discharge machining efficiency and quality all
There is further raising；Each power supply of the utility model can be completed before electro-discharge machining it is compound and will be compound after energy in time,
It accurately is supplied to discharging gap, greatly improve the surface smoothness of Precision Machining part while reducing the loss of electrode
And improve processing efficiency；First surge voltage of the utility model absorbs branch, negative wave absorbs branch or the second surge voltage
Absorbing branch coordinates link position in their each comfortable discharge loops to the surge that is generated at different location in discharge loop
Voltage is effectively absorbed, they are applied in combination to surge voltage assimilation effect more preferably, greatly improves processing table in this way
The surface roughness and homogeneity in face；Other advantageous effects of the utility model will combine in embodiment in detail below into traveling one
The explanation of step.
Description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is that the topological diagram of the utility model is intended to；
Fig. 2 is to make blocking power branch schematic diagram；
Fig. 3 is that first surge voltage of the utility model absorbs branch schematic diagram
Fig. 4 is that the negative wave of the utility model absorbs branch schematic diagram；
Fig. 5 is that the second surge voltage of the utility model absorbs branch schematic diagram；
Fig. 6 is to use the oscillogram after inductive branch；
Fig. 7 is to use the oscillogram after minute surface branch；
Fig. 8 is the schematic diagram of the utility model capacitor cell；
Fig. 9 is to use the oscillogram after capacitor cell；
Figure 10 is blocking voltage-drop loading opportunity oscillogram；
Figure 11 is processing effect comparison diagram.
Specific implementation mode
As shown in Figure 1：Spark pulse power circuit in the present embodiment includes by working power E1, the first current-limiting resistance
Working power branch made of R1, the first isolating diode D1 and the first field-effect tube H go here and there successively, by accessory power supply E2, second
Accessory power supply branch, electrode terminal and work made of current-limiting resistance R2, the second isolating diode D2 and the second field-effect tube HT go here and there
Part terminal, the working power branch and accessory power supply branch circuit parallel connection form composite power source branch；
The source electrode of the first field-effect tube H and the second field-effect tube HT connect into the positive output end of composite power source branch
P3, the working power E1 connect into the negative output terminal P4 of composite power source branch, the positive output end with accessory power supply E2 cathode
P3 and negative output terminal P4 are connected to electrode terminal and workpiece terminal；
Further include being connected on the working power anode P20 and accessory power supply branch before the second field-effect tube HT
Blocking the power branch SQ1, the blocking power branch SQ1 at end include the blocking electric power loop for providing different blocking voltages
With the first electronic switch for controlling blocking power branch break-make and for selecting different blocking voltages.Certainly further include being used for
Control the first field-effect tube H, the second field-effect tube HT and the hereinafter driving circuit of third field-effect tube HP break-makes.In this way
After controlling the connection of the first electronic switch, just selects corresponding blocking voltage to select corresponding blocking power supply, then interdicted
Power supply the first electronic switch turn-on time of control can control the opportunity of corresponding blocking voltage input.Such as：Such as Fig. 2
Shown in interdict power branch SQ1, AC power (U1- U4) collated miscarriage of multigroup different voltages is provided by voltage device
Raw blocking voltage, is loaded by the selection and control of multiple relays (HTV1-HTV4) in discharge loop.Further, with work
It is 90V to make supply voltage, and the blocking voltage selected can control the blocking of relay HTV1 turn-on times point then 138V for 138V
Voltage can 1/4 OFF time (electric discharge stop time) point, 1/2 OFF time point, 3/4 OFF time point ... etc.
It is loaded, the blocking voltage of 138V can also be allowed to be constantly in stress state, waveform is as shown in Figure 10.
In embodiment, further include the high pressure branch road being connected on accessory power supply anode and positive output end, the high pressure branch
Road includes third current-limiting resistance R3, the third isolating diode D3 to contact successively and third field-effect tube HP, the third field effect
Should the source electrode of pipe connect with the positive output end P3, the drain electrode of third field-effect tube is connect with the cathode of third isolating diode.
The advantages of this arrangement are as follows：Larger power supply pressure can be provided in electric discharging machining electrode and workpiece gap breakdown phase in this way
Be conducive to puncture, secondly, can be provided except above-mentioned blocking power supply branch by the control of the make-and-break time point of third field-effect tube HP
Other blocking voltage can also be provided except the blocking voltage that road provides more.Further, if without high pressure and blocking circuit
Auxiliary breakdown, it will guiding discharge pulse cannot puncture in time, keep shelf depreciation electric current excessive and phenomenon of arc discharge occur, cause
Workpiece is burnt or even is scrapped.
As shown in figure 3, in embodiment, the first field-effect tube H, the second field-effect tube HT or third field-effect tube
The sides HTP are parallel with the first surge voltage and inhale branch SQ2, and first surge voltage inhales branch SQ2 and includes current-limiting resistance I, inhales
Receive capacitance, recovery diode, the current-limiting resistance I and recovery diode are in parallel, it is in parallel after recovery diode anode tap and the
The drain electrode of one field-effect tube H, the second field-effect tube HT or third field-effect tube HP connect, the cathode terminal of recovery diode after parallel connection
It is connect with a pole plate of Absorption Capacitance, another pole plate of Absorption Capacitance and the first field-effect tube H, the second field-effect tube HT or third
The source electrode of field-effect tube HP connects.The first surge voltage logical in this way is inhaled branch SQ4 absorptions and is led since field-effect tube frequently switchs
Surge voltage caused by the voltage stress of cause.
In embodiment, it is connected with negative wave on the positive output end and negative output terminal of the composite power source branch and absorbs branch
SQ2.It includes resistance selection unit and diode that the negative wave, which absorbs branch SQ2, and diode anode end connects with the negative output terminal
It connects, the cathode terminal of diode is connect with resistance selection unit one end, the other end of resistance selection unit and the negative output terminal p4
Connection.The resistance selection unit is formed by the branch circuit parallel connection of a plurality of resistance and resistance selection switch series winding.It in this way can be into
Wave caused by falling when one step absorbs above-mentioned first field-effect tube H, the second field-effect tube HT or third field-effect tube HP shutdown
It gushes voltage and absorbs negative-going pulse, to reduce the export license caused by negative-going pulse, further, the resistance selection list
Member is formed by the branch circuit parallel connection of a plurality of resistance and resistance selection switch series winding, can select different branch according to different needs
Road is absorbed, to reach best assimilation effect.Such as：Surge voltage as shown in Figure 4 absorbs branch SQ2, by resistance
R10, R11, R11-1, relay #IP7, #IP15 and diode D5 are formed by connecting by above-mentioned connection relation, when current value is in 0-
When between N1A, relay #IP7 and #IP15 are disconnected, and R10 absorptions are only used on circuit, when current value IP is between N2-N3A
When, relay #IP7 is attracted, and relay #IP15 is disconnected, and is absorbed using R10 and R11 on circuit, used resistance value be R10 and
Resistance value after R11 parallel connections, when current value IP is more than N3, relay #IP7 and #IP15 is attracted, on circuit using R10, R11,
R11-1 absorbs, and used resistance value is the resistance value after R10, R11 and R11-1 parallel connection.
In embodiment, working power anode and the negative output terminal be also associated with it is in parallel by capacitance I and resistance II and
At the second surge absoption branch.The surge voltage between processing power source anode and cathode can be absorbed in this way.Second wave
Gushing the absorption branch actually circuits RC can be by setting as shown in Figure 5, and for the prior art, details are not described herein for this.
In embodiment, it has been sealed between the negative output terminal and workpiece terminal electric made of resistance and inductance in parallel
Feel branch 10, second electronic switch for playing short circuit to inductive branch 10 in parallel on the inductive branch 10.
By inductance inhibit circuit in discharge current pulse the rate of rise or descending slope, so that curent change is slowed down, in this way can effectively compared with
The loss of low electrode.As shown in fig. 6, certain section of program waveform in process, uses inductive branch 10 and blocking power branch
SQ1, processing power source voltage use 90V, blocking voltage to select 138V, and blocking voltage-drop loading opportunity is 1/2OFF time points, from figure
In can be seen that, inductor loop makes the electric time of climbing of single pulse electric current become gentler.
In embodiment, mirror finish branch 20, the mirror are connected between the inductive branch 10 and workpiece terminal
It includes resistance III and third electronic switch that face, which processes branch 20, and inductance is serially connected in after the resistance III and third electronic switch parallel connection
Between branch 10 and workpiece terminal.When third electronic switch is closed, resistance III is shorted, and is not played a role；Is disconnected when necessary
Then the electric current on discharge loop reduces three electronic switches, then control system using (OFF) between the big arteries and veins of small pulsewidth (ON) parameter,
It is processed simultaneously using negative polarity, electrode is cathode, and workpiece is anode, to further increase machined surface roughness, waveform
Figure is as shown in Fig. 7, and as can be seen from the figure electric current is reduced at this time.
In embodiment, capacitor cell SQ3 is connected between the electrode tip and workpiece terminal, as shown in figure 8, the electricity
It includes capacitive branch to hold cell S Q3, and the capacitive branch includes capacitance II, and selecting switch, the capacitance are in series on capacitance II
Branch at least two.By the capacitor charge and discharge of capacitor cell difference capacitance, the processing of best bright finish is carried out to finished surface,
Obtain different surface roughnesses.As shown in figure 9, the difference according to rapidoprint selects the electric discharge that different capacitive branch is formed
Circuit is processed, because there is the presence of capacitor cell SQ3, as can be seen from the figure (stops electric discharge) within the OFF stages, voltage is flat
Slide onto liter, be at this time because capacitance discharge, when discharge pulse being contributed to arrive (in the ON times) gap breakdown, to improve put
Electrical stability ensures the finish higher of machined surface.
In embodiment, the first current-limiting resistance R1 and/or the second current-limiting resistance R2 or third current-limiting resistance R3 is electricity
The adjustable resistive element of resistance value, the first field-effect tube H is connected on working power branch road after having multiple and parallel connection, described
Second field-effect tube HT, which has, is connected on accessory power supply branch road after multiple and parallel connection, and the third field-effect tube HP has multiple and simultaneously
It is connected in high pressure branch road after connection.It is variable that the adjustable resistive element of resistance value can be membrane type variable resistance, wire wound
Resistor can be the adjustable resistive element of other resistance values of the prior art, facilitate above-mentioned electricity in order to control and design
The adjustable resistive element of resistance value can also use resistance and its selecting switch connect to form branch circuit parallel connection after be integrated on pcb board
Mode substitutes.By the resistance value for changing above-mentioned first current-limiting resistance R1 or the second current-limiting resistance R2 or third current-limiting resistance R3
Processing electric current is finely controlled, according to rapidoprint and size, selects electric current to complete roughing to finishing from small to large
The technical process of work.
In conclusion the utility model includes blocking power branch SQ1, surge voltage absorbs branch, negative wave absorbs branch
SQ2, inductive branch 10, mirror finish branch 20, capacitive branch, these branches are combined with each other use, can improve electro-discharge machining
Processing effect in finishing improves process velocity, reduces export license, improves surface roughness.The utility model is processed
Net effect is as shown in figure 11, its processing quality of the part of the utility model processing is better than existing electric spark arteries and veins as can be seen from Figure
Rush the processing quality of electric power loop, wherein right side part is the part that the utility model is processed.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the right of the utility model.
Claims (10)
1. a kind of spark pulse power circuit, it is characterised in that：Including by working power, the first current-limiting resistance, the first isolation
Working power branch made of diode and the first field-effect tube are sequentially connected in series, by accessory power supply, the second current-limiting resistance, second every
From the accessory power supply branch that diode and the second field-effect tube are connected in series, electrode terminal and workpiece terminal, the working power
Branch and accessory power supply branch circuit parallel connection form composite power source branch；
The source electrode of first field-effect tube and the second field-effect tube connects into the positive output end of composite power source branch, the work
Power supply connects into the negative output terminal of composite power source branch with accessory power supply cathode, and the positive output end and negative output terminal are separately connected
In electrode terminal and workpiece terminal；
It further include the blocking electricity being connected on the working power anode and accessory power supply branch positioned at the second field-effect tube front end
Source branch, the blocking power branch include for providing the different blocking electric power loops for interdicting voltages and for controlling blocking electricity
Source branch break-make and for select it is different blocking voltages the first electronic switches.
2. spark pulse power circuit according to claim 1, it is characterised in that：Further include being connected to accessory power supply just
High pressure branch road on pole and positive output end, the high pressure branch road include the third current-limiting resistance contacted successively, two poles of third isolation
Pipe and third field-effect tube, the source electrode of the third field-effect tube are connect with the positive output end, the drain electrode of third field-effect tube
It is connect with the cathode of third isolating diode.
3. spark pulse power circuit according to claim 2, it is characterised in that：First field-effect tube, second
Field-effect tube or third field-effect tube side are parallel with the first surge voltage and absorb branch, and first surge voltage absorbs branch
Including current-limiting resistance I, Absorption Capacitance, recovery diode, the current-limiting resistance I and recovery diode are in parallel, restore two after in parallel
The anode tap of pole pipe is connect with the drain electrode of the first field-effect tube, the second field-effect tube or third field-effect tube, restores two after in parallel
The cathode terminal of pole pipe and a pole plate of Absorption Capacitance connect, another pole plate of Absorption Capacitance and the first field-effect tube, second effect
It should manage or the source electrode of third field-effect tube connects.
4. spark pulse power circuit according to claim 3, it is characterised in that：The composite power source branch it is just defeated
It is connected with negative wave in outlet and negative output terminal and absorbs branch.
5. spark pulse power circuit according to claim 4, it is characterised in that：The surge voltage absorbs branch packet
Resistance selection unit and diode are included, diode anode end is connect with the negative output terminal, and cathode terminal and the resistance of diode select
The connection of unit one end is selected, the other end of resistance selection unit is connect with the negative output terminal.
6. spark pulse power circuit according to claim 5, it is characterised in that：In working power anode and described negative
Output end is also associated with absorbs branch by the second surge voltage that capacitance I and resistance II are formed in parallel.
7. according to the spark pulse power circuit described in claim 2-6 any claims, it is characterised in that：Described negative
The inductive branch made of resistance and inductance in parallel has been sealed between output end and workpiece terminal, it is in parallel on the inductive branch
One the second electronic switch for playing short circuit to inductive branch.
8. spark pulse power circuit according to claim 7, it is characterised in that：In the inductive branch and work end
Between be connected with mirror finish branch, the mirror finish branch includes resistance III and third electronic switch, III He of the resistance
It is serially connected between inductive branch and work end after third electronic switch parallel connection.
9. spark pulse power circuit according to claim 8, it is characterised in that：The electrode terminal and workpiece terminal
Between be connected with capacitor cell；The capacitor cell includes capacitive branch, and the capacitive branch includes capacitance II, is gone here and there on capacitance II
It is associated with selecting switch, the capacitive branch at least two.
10. spark pulse power circuit according to claim 9, it is characterised in that：First current-limiting resistance and/or
Second current-limiting resistance or third current-limiting resistance are the adjustable resistive element of resistance value, and first field-effect tube has multiple and simultaneously
Working power branch road is connected on after connection, second field-effect tube is connected on accessory power supply branch road after having multiple and parallel connection,
The third field-effect tube is connected on after having multiple and parallel connection in high pressure branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721663234.XU CN207806817U (en) | 2017-12-04 | 2017-12-04 | Spark pulse power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721663234.XU CN207806817U (en) | 2017-12-04 | 2017-12-04 | Spark pulse power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207806817U true CN207806817U (en) | 2018-09-04 |
Family
ID=63334712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721663234.XU Withdrawn - After Issue CN207806817U (en) | 2017-12-04 | 2017-12-04 | Spark pulse power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207806817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803563A (en) * | 2017-12-04 | 2018-03-16 | 北京弘融电子科技有限公司 | Spark pulse power loop |
| CN110196382A (en) * | 2019-07-05 | 2019-09-03 | 杭州西湖电子研究所 | A kind of no check frequency oscillation wave partial discharge detection device |
-
2017
- 2017-12-04 CN CN201721663234.XU patent/CN207806817U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803563A (en) * | 2017-12-04 | 2018-03-16 | 北京弘融电子科技有限公司 | Spark pulse power loop |
| CN107803563B (en) * | 2017-12-04 | 2023-12-22 | 北京弘融电子科技有限公司 | Electric spark pulse power supply loop |
| CN110196382A (en) * | 2019-07-05 | 2019-09-03 | 杭州西湖电子研究所 | A kind of no check frequency oscillation wave partial discharge detection device |
| CN110196382B (en) * | 2019-07-05 | 2023-12-22 | 杭州西湖电子研究所 | No detection blind area oscillatory wave partial discharge detection device |
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