CN220287500U - Adjustable high-energy igniter - Google Patents
Adjustable high-energy igniter Download PDFInfo
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- CN220287500U CN220287500U CN202322062831.9U CN202322062831U CN220287500U CN 220287500 U CN220287500 U CN 220287500U CN 202322062831 U CN202322062831 U CN 202322062831U CN 220287500 U CN220287500 U CN 220287500U
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- 239000003990 capacitor Substances 0.000 claims abstract description 137
- 238000004146 energy storage Methods 0.000 claims abstract description 113
- 230000001105 regulatory effect Effects 0.000 claims description 38
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 239000007858 starting material Substances 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000007599 discharging Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
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Abstract
The utility model belongs to the technical field of igniters, and relates to an adjustable high-energy igniter, wherein a pulse step-up transformer T3 is additionally arranged on the basis of the existing structure, one end of a secondary coil L2 of the pulse step-up transformer T3 is connected with the positive electrode of an energy storage capacitor C1, and the other end of the secondary coil L2 is connected with a high-frequency arc striking device K; the input end of the pulse control circuit is connected with an alternating current power supply, and the output end of the pulse control circuit is respectively connected with two ends of a primary coil L1 of a pulse step-up transformer T3. The utility model effectively solves the problem that the energy storage capacitor of the adjustable high-energy igniter can not discharge on the electric nozzle under low voltage, and simultaneously solves the problem that the ignition frequency is unstable in the whole ignition energy adjusting range, the ignition frequency of the electric nozzle is stable and unchanged in the whole ignition energy adjusting range, the energy storage capacitor C1 can normally discharge under the low voltage of 300V-1000V, and the ignition energy starting adjustment value of the electric nozzle can reach 1mj at minimum.
Description
Technical Field
The utility model belongs to the technical field of igniters, and particularly relates to an adjustable high-energy igniter.
Background
The ignition energy of the high-energy igniter is implemented by charging and discharging an energy storage capacitor, the ignition energy is calculated by the formula W=1/2CU≡2, C is the capacity of the energy storage capacitor, U≡2 is the square of the voltage on the capacitor, and the capacitor in the circuit is fixed, so that the ignition energy is determined by adjusting the voltage on the capacitor.
In the existing adjustable high-energy igniter, as shown in an electrical control schematic diagram 7, the input voltage of a step-up transformer T2 is adjusted within the range of 90V-220V through a step-up transformer T1, so that continuously variable output voltage within the range of 1000-2500V is obtained at the secondary side of the step-up transformer T2, the output voltage is subjected to high-voltage rectification through a diode D and then is connected in series with a resistor R to charge an energy storage capacitor C, and the voltage on the energy storage capacitor C is discharged on an electric nozzle through a high-frequency arc starter K with an adjustable discharge air gap to form an ignition spark. Since the voltage on the energy storage capacitor C is also continuously adjustable, the output energy of the igniter is also adjustable, constituting an adjustable high-energy igniter, but there are two drawbacks of such an adjustable igniter:
1. because the resistance value of the charging resistor R is fixed, under the discharge voltage of 1000-2500V, the discharge frequency is changed due to the fact that the electrode distance of the high-frequency arc starter K is unchanged and the electrode voltage is different, so that the ignition frequency of the electric nozzle is unstable, the ignition frequency of the electric nozzle is slow when the voltage of the energy storage capacitor C is low, the ignition frequency of the electric nozzle is fast when the voltage of the energy storage capacitor C is high, and the experimental test precision is affected;
2. because the discharge of the electric nozzle is realized by the voltage on the energy storage capacitor C, when the voltage on the energy storage capacitor C is lower than 1000V, the electrode air gap of the high-frequency arc starter K is difficult to adjust, the electrode air gap is too small to easily cause continuous conduction of an inter-electrode discharge arc, so that the electric nozzle is subjected to continuous arc discharge, no gap discharge spark is generated, an igniter element is easily burned out, the electrode air gap is too large to easily cause abnormal discharge between electrodes, the electric nozzle cannot normally ignite under the low voltage of 300V-1000V, the adjusting range of the adjustable igniter and the starting value of low energy are seriously reduced, the starting value of the ignition energy of the electric nozzle can be as low as 50mj, and the electric nozzle cannot be applied to high-precision ignition experimental tests requiring the minimum energy within the range of 1mj-10 mj.
Disclosure of Invention
In view of the above, the utility model provides an adjustable high-energy igniter, which effectively solves the problem that an energy storage discharge capacitor of the adjustable high-energy igniter cannot discharge on an electric nozzle under low voltage, and also solves the problem that the ignition frequency is unstable in the whole ignition energy adjusting range, the ignition frequency of the electric nozzle is stable and unchanged in the whole ignition energy adjusting range, the capacitor can normally discharge under the low voltage of 300-1000V, and the ignition energy starting adjusting value of the electric nozzle can reach 1mj at minimum.
The technical scheme of the utility model is as follows:
an adjustable high energy igniter comprising:
the input end of the voltage regulating transformer T1 is connected with an alternating current power supply, the output end of the voltage regulating transformer T1 is connected with the input end of a step-up transformer T2, one of the secondary output ends of the step-up transformer T2 is grounded, the other output end of the voltage regulating transformer T2 is connected with the positive electrode of a diode D1, the negative electrode of the diode D1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with one end of a high-frequency arc striking device K, the other end of the high-frequency arc striking device K is connected with one end of an ignition electric nozzle DZ, the negative electrode of an energy storage capacitor C1 and the other end of the electric nozzle DZ are grounded, and the positive electrode of the energy storage capacitor C1 is connected with one end of the resistor R1 far away from the diode D1; further comprises:
the pulse step-up transformer T3 and the secondary coil L2 are connected in series between the positive electrode of the energy storage capacitor C1 and the high-frequency arc starter K;
the input end of the pulse control circuit is connected with an alternating current power supply, and the output end of the pulse control circuit is respectively connected with two ends of a primary coil L1 of a pulse step-up transformer T3 and is used for generating high-voltage pulse voltage on a secondary coil L2 of the pulse step-up transformer T3.
Preferably, the pulse control circuit comprises a pulse voltage regulating circuit with an input end connected with an alternating current power supply, the pulse voltage regulating circuit is used for providing power supply alternating current in a preset voltage range, an output end of the pulse voltage regulating circuit is connected with an input end of a pulse rectifying circuit, the pulse rectifying circuit is used for converting the alternating current provided by the pulse voltage regulating circuit into direct current to be output, an output end of the pulse rectifying circuit is connected with an input end of a pulse generating circuit, and an output end of the pulse generating circuit is respectively connected with two ends of a primary coil L1 of a pulse boosting transformer T3.
Preferably, the pulse voltage regulating circuit comprises a pulse power transformer T4, and the output end of the pulse power transformer T4 is connected with the input end of the pulse rectifying circuit.
Preferably, the pulse rectifying circuit includes a diode D2, an anode of the diode D2 is connected to one of output ends of the pulse power transformer T4, a cathode of the diode D2 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to an anode of an energy storage capacitor C2, a cathode of the energy storage capacitor C2 is connected to another output end of the pulse power transformer T4, and an anode of the energy storage capacitor C2 and a cathode of the energy storage capacitor C2 are respectively connected to input ends of the pulse generating circuit.
Preferably, the pulse rectification circuit includes a diode D4, an anode of the diode D4 is connected to one output end of the pulse power transformer T4, a cathode of the diode D4 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to an anode of the energy storage capacitor C2, a cathode of the energy storage capacitor C2 is connected to a middle tap of the pulse power transformer T4, another output end of the pulse power transformer T4 is connected to an anode of the diode D5, a cathode of the diode D5 is connected to a cathode of the diode D4, and an anode of the energy storage capacitor C2 and a cathode of the energy storage capacitor C2 are respectively connected to an input end of the pulse generation circuit.
Preferably, the pulse rectifying circuit includes a diode D6, the positive electrode of the diode D6 is connected to one of the output ends of the pulse power transformer T4, the negative electrode of the diode D6 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the positive electrode of an energy storage capacitor C2, the negative electrode of the energy storage capacitor C2 is connected to the positive electrode of a diode D8, the negative electrode of the diode D8 is connected to the positive electrode of the diode D6, the other output end of the pulse power transformer T4 is connected to the positive electrode of a diode D7, the negative electrode of the diode D7 is connected to the negative electrode of the diode D6, the positive electrode of the diode D8 is connected to the positive electrode of a diode D9, the negative electrode of the diode D9 is connected to the positive electrode of the diode D7, and the positive electrode of the energy storage capacitor C2 and the negative electrode of the energy storage capacitor C2 are respectively connected to the input ends of the pulse generating circuit.
Preferably, the pulse rectification circuit includes a diode D10, the positive electrode of the diode D10 is connected to one of the output ends of the pulse power transformer T4, the negative electrode of the diode D10 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the positive electrode of an energy storage capacitor C2, the negative electrode of the energy storage capacitor C2 is connected to the positive electrode of the diode D11, the negative electrode of the diode D11 is connected to the positive electrode of the diode D10, the other output end of the pulse power transformer T4 is connected to the positive electrode of an energy storage capacitor C5 and the negative electrode of the energy storage capacitor C4, the negative electrode of the energy storage capacitor C5 is connected to the negative electrode of the energy storage capacitor C2, the positive electrode of the energy storage capacitor C4 is connected to the negative electrode of the diode D10, and the negative electrode of the energy storage capacitor C2 is respectively connected to the input ends of the pulse generation circuit.
Preferably, the pulse generating circuit includes a resistor R3 with one end connected to the positive electrode of the energy storage capacitor C2, the positive electrode of the energy storage capacitor C2 is connected to one end of the primary coil L1 of the pulse boosting transformer T3, the other end of the resistor R3 is connected to the positive electrode of the energy storage capacitor C3, the negative electrode of the energy storage capacitor C3 is connected to the negative electrode of the energy storage capacitor C2, the other end of the primary coil L1 of the pulse boosting transformer T3 is connected to the positive electrode of the unidirectional thyristor VS, the negative electrode of the unidirectional thyristor VS is connected to the negative electrode of the energy storage capacitor C3, the control electrode of the unidirectional thyristor VS is connected to one end of the bidirectional diode D3, and the other end of the bidirectional diode D3 is connected to the positive electrode of the energy storage capacitor C3.
Preferably, the connection positions of the secondary coil L2 of the pulse-up transformer T3 and the high-frequency arc initiator K are interchangeable.
Preferably, the high-frequency arc initiator K can be replaced by a gas discharge tube.
Compared with the prior art, the adjustable high-energy igniter provided by the utility model has the advantages that an alternating current power supply is connected with the input end of the voltage regulating transformer T1, the input voltage of the high-energy igniter step-up transformer T2 is regulated through the voltage regulating transformer T1, so that the secondary of the high-energy igniter step-up transformer T2 is continuously variable in output voltage, and the output voltage is subjected to high-voltage rectification through the diode D1 and then is charged into the energy storage capacitor C1 through the resistor R1 connected in series. The secondary coil L2 of the pulse step-up transformer T3 and the power supply of the pulse control circuit are connected in series in the discharge loop of the high-energy igniter energy storage capacitor C1, and the primary coil L1 of the pulse step-up transformer and the power supply of the pulse control circuit are directly and independently provided by an alternating current power supply through the pulse power supply transformer, so that the output voltage of the pulse power supply transformer is not influenced by the output voltage of the voltage regulating transformer, and the secondary voltage of the step-up transformer T2 of the high-energy igniter is completely isolated from the voltage of the pulse control circuit electrically. And because the voltage on the discharge capacitor C1 is continuously adjustable, the power supply voltage of the pulse control circuit and the working voltages of the igniter voltage regulating transformer and the booster transformer are not mutually influenced, so that the voltage at two ends of the igniter energy storage capacitor C1 can not influence the high-voltage pulse voltage generated on the secondary coil L2 of the pulse booster transformer T3, and the low voltage at two ends of the igniter discharge capacitor C1 can also be discharged at the electric nozzle end through the high-voltage pulse voltage to generate discharge spark. The pulse frequency of the pulse control circuit is not influenced by the voltages at the two ends of the igniter energy storage capacitor C1, so that the ignition frequency is stable and unchanged in the whole ignition energy adjustment range, the experimental test precision is ensured, meanwhile, the voltage on the energy storage capacitor can be normally discharged under the low voltage of 300V-1000V, the starting adjustment value of the ignition energy of the electric nozzle can be as low as 1mj, the pulse control circuit can be widely applied to the high-precision ignition experimental test in the range of 1mj-10mj, and the pulse control circuit is high in practicability and worthy of popularization.
Drawings
FIG. 1 is an electrical control schematic diagram of the present utility model;
FIG. 2 is an electrical control schematic diagram of a pulse circuit of the present utility model;
FIG. 3 is a schematic diagram of the electrical control of the half-wave rectification of the pulsed power supply of the present utility model;
FIG. 4 is a schematic diagram of the electrical control of the full wave rectification of the pulsed power supply of the present utility model;
FIG. 5 is a schematic diagram of the electrical control of bridge rectification of a pulsed power supply of the present utility model;
FIG. 6 is a schematic diagram of the electrical control of the 2-fold voltage rectification of the pulsed power supply of the present utility model;
fig. 7 is a schematic diagram of the electrical control of a conventional adjustable high-energy igniter.
Detailed Description
The present utility model provides an adjustable high-energy igniter, and the following describes the present utility model with reference to the schematic structural diagrams of fig. 1 to 6.
Example 1
As shown in fig. 1, the adjustable high-energy igniter provided by the utility model comprises a voltage regulating transformer T1, wherein the input end of the voltage regulating transformer T1 is connected with an alternating current power supply, the output end of the voltage regulating transformer T1 is connected with the input end of a step-up transformer T2, one of the secondary output ends of the step-up transformer T2 is grounded, the other output end of the voltage regulating transformer T2 is connected with the positive electrode of a diode D1, the negative electrode of the diode D1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with one end of a high-frequency arc starter K, the other end of the high-frequency arc starter K is connected with one end of an ignition electric nozzle DZ, the negative electrode of an energy storage capacitor C1 and the other end of the electric nozzle DZ are grounded, and the positive electrode of the energy storage capacitor C1 is connected with one end of the resistor R1 far from the diode D1; the pulse step-up transformer T3 and the secondary coil L2 are connected in series between the positive electrode of the energy storage capacitor C1 and the high-frequency arc starter K; the input end of the pulse control circuit is connected with an alternating current power supply, and the output end of the pulse control circuit is respectively connected with two ends of a primary coil L1 of a pulse step-up transformer T3 and is used for generating high-voltage pulse voltage on a secondary coil L2 of the pulse step-up transformer T3.
The electrical schematic diagram of the pulse control circuit is shown in fig. 2, and the pulse control circuit is composed of a pulse power transformer T4, a rectifier diode D2, a resistor R2, a capacitor C2, a resistor R3, a capacitor C3, a bidirectional diode D3, a pulse step-up transformer T3, and a unidirectional silicon controlled rectifier VS.
The pulse control circuit comprises a pulse voltage regulating circuit, the input end of which is connected with an alternating current power supply, the pulse voltage regulating circuit is used for providing power supply alternating current within a preset voltage range, the output end of the pulse voltage regulating circuit is connected with the input end of a pulse rectifying circuit, the pulse rectifying circuit is used for converting the alternating current provided by the pulse voltage regulating circuit into direct current to be output, the output end of the pulse rectifying circuit is connected with the input end of a pulse generating circuit, and the output end of the pulse generating circuit is respectively connected with the two ends of a primary coil L1 of a pulse boosting transformer T3.
As shown in fig. 1 to 6, the pulse voltage regulating circuit includes a pulse power transformer T4, and an output end of the pulse power transformer T4 is connected to an input end of the pulse rectifying circuit.
As shown in fig. 3, the pulse rectifying circuit includes a diode D2, the positive electrode of the diode D2 is connected to one of the output ends of the pulse power transformer T4, the negative electrode of the diode D2 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the positive electrode of an energy storage capacitor C2, the negative electrode of the energy storage capacitor C2 is connected to the other output end of the pulse power transformer T4, and the positive electrode of the energy storage capacitor C2 and the negative electrode of the energy storage capacitor C2 are respectively connected to the input end of the pulse generating circuit.
The pulse generating circuit comprises a resistor R3 with one end connected with the positive electrode of an energy storage capacitor C2, the positive electrode of the energy storage capacitor C2 is connected with one end of a primary coil L1 of a pulse boosting transformer T3, the other end of the resistor R3 is connected with the positive electrode of the energy storage capacitor C3, the negative electrode of the energy storage capacitor C3 is connected with the negative electrode of the energy storage capacitor C2, the other end of the primary coil L1 of the pulse boosting transformer T3 is connected with an anode A of a unidirectional silicon controlled rectifier VS, a cathode K of the unidirectional silicon controlled rectifier VS is connected with the negative electrode of the energy storage capacitor C3, a control electrode G of the unidirectional silicon controlled rectifier VS is connected with one end of a bidirectional diode D3, and the other end of the bidirectional diode D3 is connected with the positive electrode of the energy storage capacitor C3.
When the high-energy igniter is used, an alternating current power supply is connected with the input end of the voltage regulating transformer T1, the input voltage of the high-energy igniter step-up transformer T2 is regulated through the voltage regulating transformer T1, so that the secondary of the high-energy igniter step-up transformer T2 is continuously variable in output voltage, and after the output voltage is rectified by the diode D1 at high voltage, the energy storage capacitor C1 is charged by the resistor R1 in series. The secondary coil L2 of the pulse boosting transformer T3 and the power supply of the pulse control circuit are connected in series in the discharging loop of the high-energy igniter energy storage capacitor C1, the primary coil L1 of the pulse boosting transformer and the power supply of the pulse control circuit are directly and independently provided by an alternating current power supply through the pulse power supply transformer, the output voltage of the pulse power supply transformer is not influenced by the output voltage of the voltage regulating transformer, and the secondary voltage of the boosting transformer T2 of the high-energy igniter is completely isolated from the voltage of the pulse control circuit electrically.
The alternating current power supply is boosted by the pulse power supply transformer T4, the secondary output voltage of the pulse power supply transformer T4 is rectified by the diode D2, the capacitor C2 is charged by the resistor R2, the voltage at two ends of the capacitor C2 reaches a stable value very quickly, meanwhile, the capacitor C3 is charged by the resistor R3, when the voltage at two ends of the capacitor C3 reaches the turning voltage of the bidirectional diode, the D3 is quickly conducted, the unidirectional silicon controlled rectifier VS is triggered by the D3 to be quickly changed into a conducting state from a blocking state, at the moment, the voltage on the capacitor C2 is quickly discharged through the unidirectional silicon controlled rectifier VS and the primary coil L1 of the pulse boosting transformer T3, the high-voltage pulse voltage is instantaneously induced on the secondary coil L2 of the pulse boosting transformer T3, the high-frequency arc striking device K is instantaneously discharged at the electric mouth end through the ignition cable, and meanwhile, the electric energy stored by the high-energy storage discharging capacitor C1 of the high-energy igniter is instantaneously discharged at the electric mouth end through the ignition cable, and the purpose that the electric energy stored by the high-energy igniter discharging capacitor C1 is discharged at the electric mouth end is realized. The voltage of the energy storage capacitor C1 is regulated by the voltage regulating transformer, and the output energy of the igniter is also adjustable because the voltage on the discharge capacitor C1 is continuously adjustable, so that the adjustable igniter is formed.
When the silicon controlled rectifier VS is triggered by the bidirectional diode D3 to be rapidly changed into a conducting state from a blocking state, the forward voltage between the anode A and the cathode K of the unidirectional silicon controlled rectifier VS is instantaneously reduced, the forward current value of the unidirectional silicon controlled rectifier VS is rapidly reduced to be smaller than the working maintaining current value of the unidirectional silicon controlled rectifier VS, the unidirectional silicon controlled rectifier VS is restored to the blocking state, the working state of the pulse control circuit is continuously repeated, the unidirectional silicon controlled rectifier VS continuously works in the conducting and blocking states, continuous high-voltage pulse voltage is obtained on the secondary coil L2 of the pulse boosting transformer T3, and the voltage on the energy storage capacitor C1 is continuously released at the electric nozzle end to generate continuous discharge spark.
Because the power supply voltage of the pulse control circuit and the working voltages of the igniter voltage regulating transformer and the booster transformer are not mutually influenced, the voltage at the two ends of the igniter energy storage capacitor C1 can not influence the high-voltage pulse voltage generated on the secondary coil L2 of the pulse booster transformer T3, and thus the low voltage at the two ends of the igniter discharging capacitor C1 can also be discharged at the tip of the electric nozzle through the high-voltage pulse voltage to generate a discharging spark.
The power supply voltage of the pulse control circuit is not influenced by the working voltage of the igniter regulating transformer and the booster transformer, and the pulse frequency is determined by the parameters of the resistor R3 and the capacitor C3, so that the pulse frequency of the pulse control circuit is not influenced by the voltages at two ends of the igniter energy storage capacitor C1, and the ignition frequency is stable and unchanged in the whole ignition energy regulating range.
Example 2
As a further modification based on embodiment 1, the rectification scheme in embodiment 1 may also be replaced with the following scheme:
as shown in fig. 4, the pulse rectifying circuit includes a diode D4, a positive electrode of the diode D4 is connected to one output end of the pulse power transformer T4, a negative electrode of the diode D4 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to a positive electrode of the energy storage capacitor C2, a negative electrode of the energy storage capacitor C2 is connected to a middle tap of the pulse power transformer T4, another output end of the pulse power transformer T4 is connected to a positive electrode of the diode D5, a negative electrode of the diode D5 is connected to a negative electrode of the diode D4, and a positive electrode of the energy storage capacitor C2 and a negative electrode of the energy storage capacitor C2 are respectively connected to an input end of the pulse generating circuit.
Example 3
As a further modification based on embodiment 1, the rectification scheme in embodiment 1 may also be replaced with the following scheme:
as shown in fig. 5, the pulse rectifying circuit includes a diode D6, the positive electrode of the diode D6 is connected to one of the output ends of the pulse power transformer T4, the negative electrode of the diode D6 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the positive electrode of a storage capacitor C2, the negative electrode of the storage capacitor C2 is connected to the positive electrode of a diode D8, the negative electrode of the diode D8 is connected to the positive electrode of the diode D6, the other output end of the pulse power transformer T4 is connected to the positive electrode of a diode D7, the negative electrode of the diode D7 is connected to the negative electrode of a diode D6, the positive electrode of the diode D8 is connected to the positive electrode of a diode D9, the negative electrode of the diode D9 is connected to the positive electrode of a diode D7, and the positive electrode of the storage capacitor C2 and the negative electrode of the storage capacitor C2 are respectively connected to the input ends of the pulse generating circuit.
Example 4
As a further modification based on embodiment 1, the rectification scheme in embodiment 1 may also be replaced with the following scheme:
as shown in fig. 6, the pulse rectifying circuit includes a diode D10, a positive electrode of the diode D10 is connected to one of output ends of the pulse power transformer T4, a negative electrode of the diode D10 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to a positive electrode of the energy storage capacitor C2, a negative electrode of the energy storage capacitor C2 is connected to a positive electrode of the diode D11, a negative electrode of the diode D11 is connected to a positive electrode of the diode D10, the other output end of the pulse power transformer T4 is connected to a positive electrode of the energy storage capacitor C5 and a negative electrode of the energy storage capacitor C4, a negative electrode of the energy storage capacitor C5 is connected to a negative electrode of the diode D10, and a positive electrode of the energy storage capacitor C2 and a negative electrode of the energy storage capacitor C2 are respectively connected to input ends of the pulse generating circuit.
The energy storage capacitor is charged by using the rectifying modes provided in the above embodiments 2, 3 and 4, and the ignition principle is the same as the above, except that the energy storage capacitor of the 2-time voltage rectifying circuit is formed by connecting two capacitors in series.
As another implementation, the dc capacitor in each embodiment may be replaced by an ac capacitor, the high-frequency arc initiator K may be replaced by a gas discharge tube, and the connection position of the secondary coil L2 of the pulse step-up transformer T3 and the high-frequency arc initiator K may be interchanged.
As another implementation, the pulse generation circuitry may be replaced in other ways.
As another implementation, the diode D1, which implements the rectification of the secondary of the step-up transformer T2, may also be replaced by several rectification modes provided in the above-mentioned embodiments 2, 3 and 4.
The adjustable high-energy igniter effectively solves the problem that the energy storage capacitor of the adjustable high-energy igniter cannot discharge on the electric nozzle under low voltage, and meanwhile solves the problem that the ignition frequency is unstable in the whole ignition energy adjusting range.
The embodiments of the present utility model are not limited to the preferred embodiments, but any simple modification, variation and circuit equivalent structure variation of the above embodiments according to the technical substance of the present utility model and variations that can be thought by those skilled in the art should fall within the protection scope of the present utility model.
Claims (10)
1. The adjustable high-energy igniter comprises a voltage regulating transformer T1, wherein the input end of the voltage regulating transformer T1 is connected with an alternating current power supply, the output end of the voltage regulating transformer T1 is connected with the input end of a step-up transformer T2, one of the secondary output ends of the step-up transformer T2 is grounded, the other output end of the step-up transformer T2 is connected with the positive electrode of a diode D1, the negative electrode of the diode D1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with one end of a high-frequency arc striking device K, the other end of the high-frequency arc striking device K is connected with one end of an ignition electric nozzle DZ, the negative electrode of an energy storage capacitor C1 and the other end of the electric nozzle DZ are grounded, and the positive electrode of the energy storage capacitor C1 is connected with one end of the resistor R1 far away from the diode D1;
characterized by further comprising:
the pulse step-up transformer T3 and the secondary coil L2 are connected in series between the positive electrode of the energy storage capacitor C1 and the high-frequency arc starter K;
the input end of the pulse control circuit is connected with an alternating current power supply, and the output end of the pulse control circuit is respectively connected with two ends of a primary coil L1 of a pulse step-up transformer T3 and is used for generating high-voltage pulse voltage on a secondary coil L2 of the pulse step-up transformer T3.
2. The adjustable high-energy igniter of claim 1, wherein the pulse control circuit comprises a pulse voltage regulating circuit with an input end connected with an ac power supply, the pulse voltage regulating circuit is used for providing power supply ac with a predetermined voltage range, an output end of the pulse voltage regulating circuit is connected with an input end of a pulse rectifying circuit, the pulse rectifying circuit is used for converting the ac provided by the pulse voltage regulating circuit into dc and outputting, an output end of the pulse rectifying circuit is connected with an input end of a pulse generating circuit, and output ends of the pulse generating circuit are respectively connected with two ends of a primary coil L1 of a pulse boosting transformer T3.
3. An adjustable high energy igniter as defined in claim 2, wherein said pulse voltage regulator circuit comprises a pulse power transformer T4, said pulse power transformer T4 having an output connected to an input of a pulse rectifier circuit.
4. An adjustable high-energy igniter as defined in claim 3, wherein said pulse rectifying circuit comprises a diode D2, the positive electrode of said diode D2 is connected to one of the output ends of said pulse power transformer T4, the negative electrode of said diode D2 is connected to one end of a resistor R2, the other end of said resistor R2 is connected to the positive electrode of an energy storage capacitor C2, the negative electrode of said energy storage capacitor C2 is connected to the other output end of said pulse power transformer T4, and the positive electrode of said energy storage capacitor C2 and the negative electrode of said energy storage capacitor C2 are respectively connected to the input end of said pulse generating circuit.
5. The adjustable high-energy igniter as defined in claim 3, wherein the pulse rectifying circuit comprises a diode D4, the positive electrode of the diode D4 is connected to one of the output ends of the pulse power transformer T4, the negative electrode of the diode D4 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the positive electrode of an energy storage capacitor C2, the negative electrode of the energy storage capacitor C2 is connected to the middle tap of the pulse power transformer T4, the other output end of the pulse power transformer T4 is connected to the positive electrode of a diode D5, the negative electrode of the diode D5 is connected to the negative electrode of the diode D4, and the positive electrode of the energy storage capacitor C2 and the negative electrode of the energy storage capacitor C2 are respectively connected to the input ends of the pulse generating circuit.
6. The adjustable high-energy igniter as defined in claim 3, wherein the pulse rectifying circuit comprises a diode D6, the positive electrode of the diode D6 is connected to one of the output ends of the pulse power transformer T4, the negative electrode of the diode D6 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the positive electrode of an energy storage capacitor C2, the negative electrode of the energy storage capacitor C2 is connected to the positive electrode of a diode D8, the negative electrode of the diode D8 is connected to the positive electrode of the diode D6, the other output end of the pulse power transformer T4 is connected to the positive electrode of a diode D7, the negative electrode of the diode D7 is connected to the negative electrode of the diode D6, the positive electrode of the diode D8 is connected to the positive electrode of a diode D9, the negative electrode of the diode D9 is connected to the positive electrode of the diode D7, and the positive electrode of the energy storage capacitor C2 and the negative electrode of the energy storage capacitor C2 are respectively connected to the input ends of the pulse generating circuit.
7. The adjustable high-energy igniter as defined in claim 3, wherein the pulse rectifying circuit comprises a diode D10, the positive electrode of the diode D10 is connected to one of the output ends of the pulse power transformer T4, the negative electrode of the diode D10 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the positive electrode of an energy storage capacitor C2, the negative electrode of the energy storage capacitor C2 is connected to the positive electrode of a diode D11, the negative electrode of the diode D11 is connected to the positive electrode of the diode D10, the other output end of the pulse power transformer T4 is connected to the positive electrode of an energy storage capacitor C5 and the negative electrode of an energy storage capacitor C4, the negative electrode of the energy storage capacitor C5 is connected to the negative electrode of the energy storage capacitor C2, and the positive electrode of the energy storage capacitor C4 is connected to the negative electrode of the diode D10, and the negative electrode of the energy storage capacitor C2 is respectively connected to the input ends of the pulse generating circuit.
8. The adjustable high-energy igniter according to any one of claims 4 to 7, wherein the pulse generating circuit comprises a resistor R3 with one end connected with the positive electrode of the energy storage capacitor C2, the positive electrode of the energy storage capacitor C2 is connected with one end of a primary coil L1 of the pulse boosting transformer T3, the other end of the resistor R3 is connected with the positive electrode of the energy storage capacitor C3, the negative electrode of the energy storage capacitor C3 is connected with the negative electrode of the energy storage capacitor C2, the other end of the primary coil L1 of the pulse boosting transformer T3 is connected with the anode of the unidirectional thyristor VS, the cathode of the unidirectional thyristor VS is connected with the negative electrode of the energy storage capacitor C3, the control electrode of the unidirectional thyristor VS is connected with one end of the bidirectional diode D3, and the other end of the bidirectional diode D3 is connected with the positive electrode of the energy storage capacitor C3.
9. An adjustable high energy igniter as defined in claim 8, wherein the secondary winding L2 of said pulse step-up transformer T3 is interchangeable with the connection location of said high frequency arc initiator K.
10. An adjustable high energy igniter as defined in claim 9, wherein said high frequency arc initiator K is replaceable with a gas discharge tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322062831.9U CN220287500U (en) | 2023-08-02 | 2023-08-02 | Adjustable high-energy igniter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322062831.9U CN220287500U (en) | 2023-08-02 | 2023-08-02 | Adjustable high-energy igniter |
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Address after: Zone G-Q271, 9th Floor, Building E3, West Yungu Phase I, Gaoqiao Street, Fengxi New City, Xixian New Area, Xi'an City, Shaanxi Province, 712000 Patentee after: Xi'an Xuwei Thermal Energy Equipment Co.,Ltd. Country or region after: China Address before: 710000 Room 11309, Building 1, Jinye Building, No. 72, Dianzi Second Road, Yanta District, Xi'an, Shaanxi Patentee before: Xi'an Xuwei Thermal Energy Equipment Co.,Ltd. Country or region before: China |
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