CN218135603U - High-voltage arc striking device for restraining high-frequency signal interference of circuit - Google Patents
High-voltage arc striking device for restraining high-frequency signal interference of circuit Download PDFInfo
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- CN218135603U CN218135603U CN202222472651.3U CN202222472651U CN218135603U CN 218135603 U CN218135603 U CN 218135603U CN 202222472651 U CN202222472651 U CN 202222472651U CN 218135603 U CN218135603 U CN 218135603U
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Abstract
A high-voltage arc striking device for restraining high-frequency signal interference of a line comprises power supply equipment and load equipment, wherein the power supply equipment comprises a direct-current power supply and a smoothing reactor; the direct current passes through the smoothing reactor and then outputs direct current voltage with stable waveform; the load equipment comprises a high-voltage pulse power supply, a high-frequency transformer, a coupling capacitor, a choke coil and a metal electrode; the high-voltage pulse power supply is connected with a primary coil of the high-frequency transformer to form a loop; the secondary coil is connected with the metal electrode in series and then connected with the coupling capacitor in parallel to form an arc striking circuit; one end of the arc striking circuit is connected with the anode of the power supply equipment, and the other end of the arc striking circuit is connected with the cathode of the power supply equipment after passing through the choke coil. The utility model provides a high-pressure arc ignition device, the circuit structure of adoption is very succinct, and through setting up choke coil, can effectively guarantee that the arc ignition device can not produce high frequency interference signal to peripheral cable and instrument and equipment at normal during operation.
Description
Technical Field
The utility model relates to a power electronic technology field, concretely relates to high pressure arc ignition device of control circuit high frequency signal interference.
Background
At present, arc striking modes are divided into a contact arc striking mode and a non-contact arc striking mode, and since the contact arc striking mode needs to be in direct contact with a workpiece and then the workpiece is easily burnt, the non-contact arc striking mode gradually takes the leading position. High-voltage high-frequency arc striking or high-voltage pulse arc striking is the main form of non-contact arc striking technology. The existing high-voltage pulse arc-striking device is complex in general circuit and easy to break down, and a part of high-frequency high-voltage potential can be generated in the working process of the high-voltage pulse arc-striking device, so that certain interference signals are generated on a control cable, nearby instruments and meters and other equipment. Adversely affecting the normal operation of the grid and the corresponding equipment. In view of the above, the present application aims to provide a high-voltage arc striking device which has a simple circuit and can suppress the interference of high-frequency signals of the circuit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned not enough of prior art and providing a high pressure arc ignition device who controls circuit high frequency signal interference, its circuit structure is simple, can control the high frequency current when guaranteeing the normal work of load equipment and pass through to can not produce high frequency interference signal to peripheral cable and instrument and meter etc..
The technical scheme of the utility model is that: a high-voltage arc striking device for suppressing the interference of high-frequency signals of a line comprises power supply equipment and load equipment, wherein the power supply equipment is connected with load equipment through a power cable; the power supply equipment comprises a direct current power supply and a smoothing reactor, and the positive end and the negative end of the direct current power supply are both connected with the smoothing reactor; the direct current passes through the smoothing reactor and then outputs direct current voltage with stable waveform;
the load equipment comprises a high-voltage pulse power supply, a high-frequency transformer, a coupling capacitor, a choke coil and a metal electrode; the high-frequency transformer comprises a primary coil and a secondary coil, and the high-voltage pulse power supply is connected with the primary coil to form a loop; the secondary coil is connected with the metal electrode in series and then connected with the coupling capacitor in parallel to form an arc striking circuit; one end of the arc striking circuit is connected with the anode of the power supply equipment, and the other end of the arc striking circuit is connected with the cathode of the power supply equipment after passing through the choke coil.
Further, the regulation range of the DC power supply is DC 0-2000V.
Further, the inductance value of the smoothing reactor is between 0.1 and 10 mH.
Further, the frequency of the high-voltage pulse power supply is between 100 KHz and 1 MHz, and the voltage is between 0 and 30 KV.
Furthermore, the inductance values of the primary coil and the secondary coil in the high-frequency transformer are all 1-300 uH.
Furthermore, the inductance value of the choke coil is between 0.1 and 10 mH.
Further, a gas medium is filled between the two electrodes of the metal electrode, and the gas medium can be air, argon gas and the like.
Further, the length of the power cable does not exceed 1000m.
Compared with the prior art the beneficial effects of the utility model: the utility model provides a high-pressure arc ignition device, the circuit structure of adoption is very succinct, and through setting up choke coil, can effectively guarantee that the arc ignition device can not produce high frequency interference signal to peripheral cable and instrument and equipment at normal during operation.
Drawings
Fig. 1 is a schematic circuit diagram of a device in embodiment 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, wherein methods and functional components not specifically described are known in the art.
Example 1
As shown in fig. 1, the embodiment is a high-voltage arc striking device for suppressing line high-frequency signal interference, which comprises a power supply device and a load device, wherein the power supply device is connected with the load device through a power cable; the power supply equipment comprises a direct current power supply V1 and a smoothing reactor, wherein a smoothing reactor L2 and a smoothing reactor L1 are respectively connected to the positive end and the negative end of the direct current power supply V1; the direct current outputs a direct current voltage with stable waveform to the outside after passing through the smoothing reactor L1; the load equipment comprises a high-voltage pulse power supply HV, a high-frequency transformer, a coupling capacitor C1, a choke coil L3 and a metal electrode P1; the high-frequency transformer T1 comprises a primary coil L4 and a secondary coil L5, and the high-voltage pulse power supply HV and the primary coil L4 are connected to form a loop; the secondary coil L5 is connected with the metal electrode P1 in series and then connected with the coupling capacitor C1 in parallel to form an arc striking circuit; one end of the arc striking circuit is connected with the anode of the power supply equipment, and the other end of the arc striking circuit is connected with the cathode of the power supply equipment after passing through the choke coil L3.
In this embodiment, the adjustment range of the DC power supply V1 is DC 0-2000V; the inductance value of the smoothing reactor L2 is between 0.1 and 10 mH, the frequency of the high-voltage pulse power supply HV is between 100 KHz and 1 MHz, the voltage is between 0 and 30 KV, and the inductance values of the primary coil L4 and the secondary coil L5 in the high-frequency transformer T1 are both between 1 and 300 uH. The inductance value of the choke coil L3 is between 0.1 and 10 mH, and the length of the power cable is not more than 1000m. The two electrodes of the metal electrode P1 are filled with a gas medium without conduction, and the gas medium is air.
The principle of the embodiment is as follows: the direct current power supply V1 outputs direct current voltage with stable waveform after passing through the smoothing inductors L1 and L2, and power supply equipment and load equipment are connected by a power cable with the distance of 0-1000 m. The high-frequency transformer T1 is magnetically coupled with the secondary coil L5 through the primary coil L4, the high-voltage pulse power supply HV is coupled to the secondary coil L5, the secondary coil L5 enables high-frequency high-voltage pulses to act on two sides of the metal electrode P1 through the coupling capacitor C1, accordingly, gas between the metal electrodes can be broken down to form an electric arc loop, and then the electric arc loop with large current is formed under the action of the V1 direct-current power supply. The induced high-frequency high-voltage potential generated by the magnetic coupling of the secondary coil L5 is applied to the two sides of the P1 metal electrode through the coupling capacitor C1, but part of high frequency is radiated to the L3 choke inductor, if the inductance value of the choke inductor is lower than 0.01mH, the part of high frequency can be radiated in the power cable, the peripheral control cable of the power cable and instrument and meter equipment are influenced, a strong interference signal is generated to the equipment, and the damage is great. Therefore, the choking inductance value of the choking coil L3 is selected to be suitable, so that the high-frequency current can be throttled while normal operation of normal load equipment is ensured, and high-frequency interference signals cannot be generated on cables around the power cable and instruments.
The above is only a partial embodiment of the present invention, and is not intended to limit the present invention, and to those skilled in the art, the present invention can have the combination and modification of the above various technical features, and those skilled in the art can replace the improvement, modification, equivalent replacement, or use the structure or method of the present invention in other fields to achieve the same effect without departing from the spirit and scope of the present invention, and all belong to the protection scope of the present invention.
Claims (8)
1. A high-voltage arc striking device for restraining high-frequency signal interference of a line comprises power supply equipment and load equipment, wherein the power supply equipment is connected with load equipment through a power cable; the method is characterized in that: the power supply equipment comprises a direct-current power supply V1 and a smoothing reactor, wherein the smoothing reactor is connected to both the positive end and the negative end of the direct-current power supply V1; the direct current passes through the smoothing reactor and then outputs direct current voltage with stable waveform; the load equipment comprises a high-voltage pulse power supply HV, a high-frequency transformer T1, a coupling capacitor C1, a choke coil L3 and a metal electrode P1; the high-frequency transformer T1 comprises a primary coil L4 and a secondary coil L5, and the high-voltage pulse power supply HV and the primary coil L4 are connected to form a loop; the secondary coil L5 is connected with the metal electrode P1 in series and then connected with the coupling capacitor C1 in parallel to form an arc striking circuit; one end of the arc striking circuit is connected with the anode of the power supply equipment, and the other end of the arc striking circuit is connected with the cathode of the power supply equipment after passing through the choke coil L3.
2. The high-voltage arc ignition device according to claim 1, wherein: the adjusting range of the direct current power supply V1 is DC 0-2000V.
3. The high-voltage arc ignition device according to claim 1, wherein: the inductance value of the smoothing reactor is between 0.1 and 10 mH.
4. The high-voltage arc ignition device according to claim 1, wherein: the frequency of the high-voltage pulse power supply HV is between 100 KHz and 1 MHz, and the voltage is between 0 and 30 KV.
5. The high-voltage arc ignition device according to claim 1, wherein: the inductance values of the primary coil L4 and the secondary coil L5 in the high-frequency transformer T1 are both 1-300 uH.
6. The high-voltage arc ignition device according to claim 1, wherein: the inductance value of the choke coil L3 is between 0.1 and 10 mH.
7. The high-voltage arc ignition device according to claim 1, wherein: and a gas medium is filled between the two electrodes of the metal electrode P1.
8. The high-voltage arc ignition device according to claim 1, wherein: the length of the power cable does not exceed 1000m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222472651.3U CN218135603U (en) | 2022-09-19 | 2022-09-19 | High-voltage arc striking device for restraining high-frequency signal interference of circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222472651.3U CN218135603U (en) | 2022-09-19 | 2022-09-19 | High-voltage arc striking device for restraining high-frequency signal interference of circuit |
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| Publication Number | Publication Date |
|---|---|
| CN218135603U true CN218135603U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222472651.3U Active CN218135603U (en) | 2022-09-19 | 2022-09-19 | High-voltage arc striking device for restraining high-frequency signal interference of circuit |
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| Country | Link |
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| CN (1) | CN218135603U (en) |
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- 2022-09-19 CN CN202222472651.3U patent/CN218135603U/en active Active
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