CN209398508U - A kind of engine solid-state discharge igniter of frequency stabilization - Google Patents
A kind of engine solid-state discharge igniter of frequency stabilization Download PDFInfo
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- CN209398508U CN209398508U CN201821784510.2U CN201821784510U CN209398508U CN 209398508 U CN209398508 U CN 209398508U CN 201821784510 U CN201821784510 U CN 201821784510U CN 209398508 U CN209398508 U CN 209398508U
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Abstract
The utility model discloses a kind of engine solid-state discharge igniters of frequency stabilization, connect with power input interface, including inverter circuit, spark frequency stabilizing circuit, booster circuit, rectification circuit, accumulator, discharge circuit, high frequency booster circuit；The inverter circuit, booster circuit, rectification circuit, accumulator, discharge circuit, high frequency booster circuit are sequentially connected, the output end of the accumulator is connect with the input terminal of spark frequency stabilizing circuit, and the output end of the spark frequency stabilizing circuit is connect with inverter circuit, discharge circuit respectively.The utility model solves the problems, such as that conventional ignition device energy loss is big, discharge time is uncontrollable, the service life is short, has the characteristics that high-efficient, the service life is long, spark frequency stability is good.
Description
Technical field
The utility model relates to aviation frequency stabilization firing technique fields, are that a kind of engine of frequency stabilization is solid specifically
State discharge ignition apparatus.
Background technique
In the prior art, as shown in figure 3, aero-engine direct current variant capacitive discharge ignition device generally has inversion electric
Road, booster circuit, rectification circuit, accumulator and charge/discharge control circuit composition.Its working principle is that: DC power supply is in inversion electricity
High-voltage dc pulse is converted in road and booster circuit, is stored in energy-storage capacitor after distilling；When in energy-storage capacitor
When energy buys group prescribed requirement, the discharge switch device in discharge circuit be connected discharged for the energy in energy-storage capacitor provide it is logical
Road, generation can be with the high voltage of ionized air.
Aero-engine igniter is limited to always using mechanical vibrator inversion and gas-discharge tube.Mechanical vibrator inversion
The electromagnetic relay of principle, slider material are the alloy of noble metal platinum, at high cost, processing technology is complicated, the service life is short, body
The disadvantage that product is big, weight is big.Gas-discharge tube is a kind of electronic tube tube, and tube body material is that ceramics or glass, inside are contained
Radgas plays discharge switch in igniter.Gas discharge tube lifetime is low, and electric discharge is not controlled by outside, can not
Meet spark frequency stability requirement.
Utility model content
The purpose of this utility model is to provide a kind of engine solid-state discharge igniter of frequency stabilization, PWM controls
The inverter circuit of chip U2 and its auxiliary circuit composition is instead of traditional mechanical vibrator inversion；By thyristor SCR and its auxiliary
Charge/discharge control circuit, high frequency booster circuit, sustained diode 4 of circuit composition etc. are instead of gas-discharge tube；Increase afterflow
Diode D4, programmable timer U1 and its auxiliary circuit composition spark frequency stabilizing circuit, by high frequency transformer T2 and vibration
Swing the high frequency booster circuit of capacitor C9 composition.
The utility model is achieved through the following technical solutions: a kind of engine solid-state discharge igniter of frequency stabilization,
Connect with power input interface, including inverter circuit, spark frequency stabilizing circuit, booster circuit, rectification circuit, accumulator,
Discharge circuit, high frequency booster circuit；The inverter circuit, booster circuit, rectification circuit, accumulator, discharge circuit, high frequency liter
Volt circuit is sequentially connected, and the output end of the accumulator is connect with the input terminal of spark frequency stabilizing circuit, the spark frequency
The output end of rate stabilizing circuit is connect with inverter circuit, discharge circuit respectively.
Further, in order to preferably realize that the utility model, the inverter circuit include pwm chip U2, MOS
Effect pipe Q2, the pwm chip are connect with power input interface, the 6th pin of the pwm chip and MOS effects
Should pipe Q2 grid connection, the 3rd pin of pwm chip is connect by resistance R6 with the source level of metal-oxide-semiconductor field effect transistor Q2, described
The drain of metal-oxide-semiconductor field effect transistor Q2 is connect with booster circuit.
Further, in order to preferably realize that the utility model, the booster circuit include diode of high-voltage silicon rectifier stack D1, electricity
Resistance R8, transformer T1, the diode of high-voltage silicon rectifier stack D1 and resistance R8 are parallel to pwm chip U2 and metal-oxide-semiconductor field effect transistor Q2
Between；The armature winding of the transformer T1 is connect with the drain of metal-oxide-semiconductor field effect transistor Q2.
Further, in order to preferably realize the utility model, the accumulator includes diode of high-voltage silicon rectifier stack D2, storage
It can capacitor C8, resistance R9, resistance R10；Transformer T1 is connected by the anode of diode of high-voltage silicon rectifier stack D2 and energy-storage capacitor C8
It connects in parallel with energy-storage capacitor C8 after the resistance R9 connects with resistance R10.
Further, in order to preferably realize that the utility model, the discharge circuit include diode D3, thyristor SCR；
The diode D3 is in parallel with energy-storage capacitor C8, and the cathode of thyristor SCR is connect with the anode of diode D3, thyristor SCR
Anode connect with the cathode of diode of high-voltage silicon rectifier stack D2, the control electrode of thyristor SCR is connect with spark frequency stabilizing circuit.
Further, in order to preferably realize the utility model, the high frequency booster circuit includes high frequency transformer T2, vibration
Swing capacitor C9, diode D4, resistance R11；After the resistance R11 is in parallel with diode D4 respectively with the cathode of thyristor SCR and
High frequency transformer T2 connection, the high frequency transformer T2 are grounded by oscillating capacitance C9.
Further, in order to preferably realize the utility model, the spark frequency stabilizing circuit is including triggering transformer
T3, programmable timer U1, metal-oxide-semiconductor field effect transistor Q1；It is described triggering transformer T3 one end connection thyristor SCR control electrode and
The other end of high frequency transformer T2, triggering transformer T3 are connect with the source level of metal-oxide-semiconductor field effect transistor Q1；The metal-oxide-semiconductor field effect transistor Q1
Grid connect with the pin 2 of programmable timer U1, the drain of metal-oxide-semiconductor field effect transistor Q1 is connect with inverter circuit.
Working principle:
DC power supply DC is electrically connected inverter circuit and spark frequency stabilizing circuit through power input interface, passes through inverter circuit
High-voltage alternating pulse is converted to booster circuit, then electric energy is stored in the storage capacitor of accumulator by rectified, accumulator
In device C8, spark frequency stabilizing circuit controls the discharge time of discharge circuit, completes to connect to High voltage output from high frequency booster circuit
Mouth output HIGH voltage.
The utility model compared with prior art, have the following advantages that and the utility model has the advantages that
(1) the utility model forms inverter circuit using pwm chip U2 and its auxiliary circuit, solves tradition machinery
The problems such as loss of vibrator type inverter energy is big, transfer efficiency is low, the service life is short, Electro Magnetic Compatibility is poor；
(2) the utility model uses the discharge circuit of thyristor SCR machine auxiliary circuit composition, high frequency booster circuit, continues
Diode is flowed, solves that gas discharge tube discharge is uncontrolled, energy loss is big, transfer efficiency is low, the service life is short and later period radiation
The problems such as property article is dealt with improperly；
(3) the utility model uses the spark frequency stabilizing circuit being made of programmable timer U1 and its auxiliary circuit,
Solves the problems, such as spark frequency stability；
(4) the utility model compared to using mechanical vibrator formula inverter the prior art, have electric conversion it is high-efficient,
The good feature of electromagnetic compatibility effect reduces the apparatus body of 30% or more step-up transformer simultaneously because improving frequency of oscillation
Product；
(5) the utility model compared to using gas-discharge tube the prior art, have electrical efficiency height, high reliablity,
Feature "dead", spark frequency is controllable；The energy of loss can reduce 30% or so compared with gas-discharge tube, that is, can be improved nearly 30%
Output energy and transfer efficiency；Change rate of the spark frequency in 16 ~ 30V of input voltage range is no more than 5%.
Detailed description of the invention
Fig. 1 is the functional block diagram of the utility model frequency stabilization solid-state discharge igniter；
Fig. 2 is the circuit theory schematic diagram of the utility model frequency stabilization solid-state discharge igniter；
Fig. 3 is prior art igniter functional block diagram.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not
It is limited to this.
Embodiment 1:
The utility model is achieved through the following technical solutions, as Figure 1-Figure 2, a kind of engine solid-state of frequency stabilization
Discharge ignition apparatus is connect with power input interface, including inverter circuit, spark frequency stabilizing circuit, booster circuit, rectified current
Road, accumulator, discharge circuit, high frequency booster circuit；The inverter circuit, rectification circuit, accumulator, is put booster circuit
Circuit, high frequency booster circuit are sequentially connected, and the output end of the accumulator and the input terminal of spark frequency stabilizing circuit connect
It connects, the output end of the spark frequency stabilizing circuit is connect with inverter circuit, discharge circuit respectively.
It should be noted that the utility model proposes a kind of engine solid-state discharges of frequency stabilization by above-mentioned improvement
Igniter, including inverter circuit, spark frequency stabilizing circuit, booster circuit, rectification circuit, accumulator, discharge circuit, height
Frequency booster circuit, DC power supply DC are electrically connected inverter circuit and spark frequency stabilizing circuit through power input interface, pass through inversion
Circuit and booster circuit are converted to high-voltage alternating pulse, then electric energy is stored in the energy storage of accumulator by rectified, accumulator
In capacitor C8, spark frequency stabilizing circuit controls the discharge time of discharge circuit, is completed from high frequency booster circuit defeated to high pressure
Outgoing interface output HIGH voltage.The utility model solves that conventional ignition device energy loss is big, discharge time is uncontrollable, the service life is short
The problem of, have the characteristics that high-efficient, the service life is long, spark frequency stability is good.
Wherein inverter circuit is electric by the pwm chip U2 and its auxiliary being electrically connected between input power and booster circuit
Road composition；Spark frequency stabilizing circuit is by the programmable timer U1 that is electrically connected between input power and discharge circuit and its auxiliary
Circuit is helped to form；Booster circuit is electrically connected energy-storage capacitor C8 by high voltage silicon rectifier stack D2；Discharge circuit is connected electrically in storage capacitor
Between device C8 and high frequency booster circuit, it is made of thyristor SCR and its trigger circuit；High frequency booster circuit is by electrical connection electric discharge electricity
High frequency transformer T2, the oscillating capacitance C9 and sustained diode 4 on road are formed.
The inverter circuit being made of in the utility model pwm chip U2 and its auxiliary circuit is instead of traditional machinery
Oscillator inversion；Charge/discharge control circuit, the high frequency booster circuit, sustained diode 4 being made of thyristor SCR and its auxiliary circuit
Deng instead of gas-discharge tube；Increase the spark frequency of sustained diode 4, programmable timer U1 and its auxiliary circuit composition
Rate stabilizing circuit, the high frequency booster circuit being made of high frequency transformer T2 and oscillating capacitance C9.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 2:
The present embodiment advanced optimizes on the basis of the above embodiments, as Figure 1-Figure 2, the inverter circuit packet
Pwm chip U2, metal-oxide-semiconductor field effect transistor Q2 are included, the pwm chip is connect with power input interface, and the PWM controls core
6th pin of piece is connect with the grid of metal-oxide-semiconductor field effect transistor Q2, and the 3rd pin of pwm chip passes through resistance R6 and MOS effects
Should pipe Q2 source level connection, the drain of the metal-oxide-semiconductor field effect transistor Q2 connect with booster circuit；
The booster circuit includes diode of high-voltage silicon rectifier stack D1, resistance R8, transformer T1, the diode of high-voltage silicon rectifier stack D1
And resistance R8 is parallel between pwm chip U2 and metal-oxide-semiconductor field effect transistor Q2；The armature winding of the transformer T1 with MOS
The drain of effect pipe Q2 connects；
The accumulator includes diode of high-voltage silicon rectifier stack D2, energy-storage capacitor C8, resistance R9, resistance R10；Transformer T1
It is connect by diode of high-voltage silicon rectifier stack D2 with the anode of energy-storage capacitor C8 after the resistance R9 connects with resistance R10 and energy storage electricity
Container C8 is in parallel.
It should be noted that by above-mentioned improvement, the inverter circuit of pwm chip U2 and auxiliary circuit composition, MOS
Effect pipe Q2 cooperates the single-ended flyback that the armature winding of transformer T1 and diode of high-voltage silicon rectifier stack D1 are constituted in booster circuit inverse
Power transformation road is charged to the energy-storage capacitor C8 in accumulator.
When energy-storage capacitor C8 voltage reaches specified value, divider resistance R9, R10 export a voltage through resistance R5, electricity
Hold on C4 to pwm chip U2, pwm chip U2 stops output, and inverter circuit stops working.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 3:
The present embodiment advanced optimizes on the basis of the above embodiments, as Figure 1-Figure 2, the discharge circuit packet
Include diode D3, thyristor SCR；The diode D3 is in parallel with energy-storage capacitor C8, the cathode and diode D3 of thyristor SCR
Anode connection, the anode of thyristor SCR connect with the cathode of diode of high-voltage silicon rectifier stack D2, the control electrode of thyristor SCR with it is fiery
Flower frequency stabilization circuit connection；
The high frequency booster circuit includes high frequency transformer T2, oscillating capacitance C9, diode D4, resistance R11；The resistance
It is connect respectively with the cathode of thyristor SCR and high frequency transformer T2 after R11 is in parallel with diode D4, the high frequency transformer T2 is logical
Cross oscillating capacitance C9 ground connection；
The spark frequency stabilizing circuit includes triggering transformer T3, programmable timer U1, metal-oxide-semiconductor field effect transistor Q1；Institute
The control electrode and high frequency transformer T2 for stating one end connection thyristor SCR of triggering transformer T3, trigger the other end of transformer T3
It is connect with the source level of metal-oxide-semiconductor field effect transistor Q1；The grid of the metal-oxide-semiconductor field effect transistor Q1 is connect with the pin 2 of programmable timer U1,
The drain of metal-oxide-semiconductor field effect transistor Q1 is connect with inverter circuit.
It should be noted that by above-mentioned improvement, the spark frequency that is made of programmable timer U1 and its auxiliary circuit
Stabilizing circuit generates the discharge pulse of stable frequency, controls the on-off of metal-oxide-semiconductor field effect transistor Q1, and capacitor C3 passes through metal-oxide-semiconductor field effect transistor
Q1, triggering transformer T3 and resistance R12 forming circuit, generating trigger signal makes thyristor SCR triggering and conducting.
After thyristor SCR triggering and conducting, the electric energy on energy-storage capacitor C8 passes through thyristor SCR, high frequency transformer T2, vibration
It swings capacitor C9 and promotes voltage again, complete the function of igniter output HIGH voltage, high current.Electricity on energy-storage capacitor C8
It can discharge and finish, sustained diode 4 and high frequency transformer T2, load sparking plug BD forming circuit, by the magnetic in high frequency transformer T2
It can release offer access.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the protection scope of the utility model.
Claims (7)
1. a kind of engine solid-state discharge igniter of frequency stabilization, connect with power input interface, it is characterised in that: including
Inverter circuit, spark frequency stabilizing circuit, booster circuit, rectification circuit, accumulator, discharge circuit, high frequency booster circuit；Institute
It states inverter circuit, booster circuit, rectification circuit, accumulator, discharge circuit, high frequency booster circuit to be sequentially connected, the energy storage
The output end of circuit is connect with the input terminal of spark frequency stabilizing circuit, the output end of the spark frequency stabilizing circuit respectively with
Inverter circuit, discharge circuit connection.
2. a kind of engine solid-state discharge igniter of frequency stabilization according to claim 1, it is characterised in that: described
Inverter circuit includes pwm chip U2, metal-oxide-semiconductor field effect transistor Q2, and the pwm chip is connect with power input interface, institute
The 6th pin for stating pwm chip is connect with the grid of metal-oxide-semiconductor field effect transistor Q2, and the 3rd pin of pwm chip passes through resistance
R6 is connect with the source level of metal-oxide-semiconductor field effect transistor Q2, and the drain of the metal-oxide-semiconductor field effect transistor Q2 is connect with booster circuit.
3. a kind of engine solid-state discharge igniter of frequency stabilization according to claim 2, it is characterised in that: described
Booster circuit includes diode of high-voltage silicon rectifier stack D1, resistance R8, transformer T1, the diode of high-voltage silicon rectifier stack D1 and resistance R8 in parallel
Between pwm chip U2 and metal-oxide-semiconductor field effect transistor Q2；The leakage of the armature winding and metal-oxide-semiconductor field effect transistor Q2 of the transformer T1
Grade connection.
4. a kind of engine solid-state discharge igniter of frequency stabilization according to claim 3, it is characterised in that: described
Accumulator includes diode of high-voltage silicon rectifier stack D2, energy-storage capacitor C8, resistance R9, resistance R10；Transformer T1 passes through high voltage silicon rectifier stack
Diode D2 is connect with the anode of energy-storage capacitor C8, and the resistance R9 is in parallel with energy-storage capacitor C8 after connecting with resistance R10.
5. a kind of engine solid-state discharge igniter of frequency stabilization according to claim 4, it is characterised in that: described
Discharge circuit includes diode D3, thyristor SCR；The diode D3 is in parallel with energy-storage capacitor C8, the cathode of thyristor SCR
It is connect with the anode of diode D3, the anode of thyristor SCR is connect with the cathode of diode of high-voltage silicon rectifier stack D2, thyristor SCR's
Control electrode is connect with spark frequency stabilizing circuit.
6. a kind of engine solid-state discharge igniter of frequency stabilization according to claim 5, it is characterised in that: described
High frequency booster circuit includes high frequency transformer T2, oscillating capacitance C9, diode D4, resistance R11；The resistance R11 and diode
It is connect respectively with the cathode of thyristor SCR and high frequency transformer T2 after D4 is in parallel, the high frequency transformer T2 passes through oscillating capacitance
C9 ground connection.
7. a kind of engine solid-state discharge igniter of frequency stabilization according to claim 6, it is characterised in that: described
Spark frequency stabilizing circuit includes triggering transformer T3, programmable timer U1, metal-oxide-semiconductor field effect transistor Q1；The triggering transformer
The control electrode and high frequency transformer T2 of one end connection thyristor SCR of T3, triggers the other end and metal-oxide-semiconductor field effect transistor of transformer T3
The source level of Q1 connects；The grid of the metal-oxide-semiconductor field effect transistor Q1 is connect with the pin 2 of programmable timer U1, metal-oxide-semiconductor field effect transistor Q1
Drain connect with inverter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821784510.2U CN209398508U (en) | 2018-10-31 | 2018-10-31 | A kind of engine solid-state discharge igniter of frequency stabilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821784510.2U CN209398508U (en) | 2018-10-31 | 2018-10-31 | A kind of engine solid-state discharge igniter of frequency stabilization |
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| Publication Number | Publication Date |
|---|---|
| CN209398508U true CN209398508U (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821784510.2U Active CN209398508U (en) | 2018-10-31 | 2018-10-31 | A kind of engine solid-state discharge igniter of frequency stabilization |
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| Country | Link |
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| CN (1) | CN209398508U (en) |
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- 2018-10-31 CN CN201821784510.2U patent/CN209398508U/en active Active
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