CN207214129U - A kind of igniter fire frequency target test device - Google Patents
A kind of igniter fire frequency target test device Download PDFInfo
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- CN207214129U CN207214129U CN201721231128.4U CN201721231128U CN207214129U CN 207214129 U CN207214129 U CN 207214129U CN 201721231128 U CN201721231128 U CN 201721231128U CN 207214129 U CN207214129 U CN 207214129U
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Abstract
The utility model discloses a kind of igniter fire frequency target test device,Include shell,The shell is arranged at the voltage induced element near ignition electrode,The voltage induced element is connected with the spark rate waveform changing circuit for detecting igniter spark rate and making spark rate waveform be converted to square wave,The spark rate waveform changing circuit be connected with for calculate spark rate waveform changing circuit square wave frequency and judge square wave frequency whether the CPU detection process circuits in igniter fire frequency scope up to standard,The CPU detection process circuit is connected with for prompting igniter fire frequency cue circuit whether up to standard,Igniter discharge voltage is caught by voltage induced element senses,And it is depressured by partial pressure,Signal isolation,Square-wave signal is exported after waveform conversion,Pass through CPU detection process circuit counting igniter fire frequencies,Judge whether spark rate is up to standard and shown by digital screen display circuit.
Description
[technical field]
It the utility model is related to a kind of igniter fire frequency target test device.
[background technology]
Igniter fire underfrequency or it is too high when, do not comply with the technical requirements of igniter fire frequency.But use at present
In the device of test household electrical appliance kitchen range high-tension ignition frequency, its test circuit poor anti jamming capability and unstable so that test
Spark rate it is inaccurate, the shortcomings of easily producing erroneous judgement.
[utility model content]
The utility model overcomes the deficiency of above-mentioned technology, there is provided a kind of igniter fire frequency target test device,
Igniter discharge voltage is caught by voltage induced element senses, and is depressured by partial pressure, exported after the conversion of signal isolation, waveform
Square-wave signal, by CPU detection process circuit counting igniter fire frequencies, judge whether spark rate is up to standard and passes through number
Screen display circuit is shown.
To achieve the above object, the utility model employs following technical proposal：
A kind of igniter fire frequency target test device, includes shell 1, and the shell 1 is arranged at igniting
Voltage induced element 2 near pin, the voltage induced element 2 are connected with for detecting igniter spark rate and making igniting frequency
Rate waveform is converted to the spark rate waveform changing circuit 3 of square wave, and the spark rate waveform changing circuit 3 is connected with based on
Calculate the square wave frequency of spark rate waveform changing circuit 3 and judge square wave frequency whether in igniter fire frequency scope up to standard
CPU detection process circuit 4, the CPU detection process circuit 4 are connected with for prompting whether igniter fire frequency is up to standard to carry
Show circuit 5.
The spark rate waveform changing circuit 3 includes and divided described in the division module 31 being connected with voltage induced element 2
Die block 31 has been sequentially connected with signal isolation module 32, waveform modular converter 33.
The voltage induced element 2 is provided with conductive pin.
Between the distance between described conductive pin and ignition electrode are 2 millimeters to 12 millimeters.
The division module 31 includes the resistance R1 that is connected with voltage induced element 2, the resistance R1 other ends respectively with resistance
R2 one end, the connection of resistance R3 one end, the resistance R2 other ends are connected with signal isolation module 32, resistance R3 other ends ground connection.
The signal isolation module 32 is photoelectrical coupler, and photoelectrical coupler input positive terminal is connected with division module 31,
Photoelectrical coupler input negative pole end ground connection, photoelectrical coupler output cathode end are connected with waveform modular converter 33, photoelectrical coupler
Output negative pole end is grounded.
The waveform modular converter 33 includes triode Q1 and FET Q2, and triode Q1 emitter stages are electric with 5V respectively
Source, the connection of resistance R4 one end, the resistance R4 other ends are connected with signal isolation module 32, and triode Q1 base stages pass through resistance R5 and letter
Number isolation module 32 is connected, and triode Q1 colelctor electrodes are connected with electric capacity C1 one end, resistance R6 one end respectively, another terminations of electric capacity C1
Ground, the resistance R6 other ends are connected with resistance R7 one end, FET Q2 grids respectively, resistance R7 other ends ground connection, FET
Q2 drain electrodes are connected by resistance R8 with 5V power supplys, and electric capacity is connected in parallel between FET Q2 drain electrodes and FET source electrode
C2, FET Q2 drain electrode end are the output end of spark rate waveform changing circuit 3.
The igniter fire frequency scope up to standard is between 20HZ in 5HZ.
The cue circuit 5 is digital screen display circuit.
The beneficial effects of the utility model are：
The precision of the utility model voltage induced element testing igniter discharge voltage is high, and vacantly connects between ignition electrode
Connect, avoid being directly connected to make high-tension electricity damage component between the two, be depressured using line around power resistor, partial pressure is better achieved
Decompression, is used as first-level buffer circuit drives triode by photoelectrical coupler, effectively prevents rear class measured signal to be interfered,
Antijamming capability is improved, while FET has high-precision switching characteristic, switch time reaches ns levels, believes the square wave of output
Number more stable, CPU detection process circuits have accurate square wave rising edge, trailing edge recognition capability, can calculate igniting exactly
The spark rate of device.
[brief description of the drawings]
Fig. 1 is the utility model structure diagram；
Fig. 2 is the circuit diagram of the utility model voltage induced element and spark rate waveform changing circuit.
[embodiment]
It is described in further detail below in conjunction with the accompanying drawings with embodiment of the present utility model：
As depicted in figs. 1 and 2, a kind of igniter fire frequency target test device, includes shell 1, on the shell 1
Provided with the voltage induced element 2 being arranged near ignition electrode, the voltage induced element 2 is connected with for detecting igniter fire
Frequency simultaneously makes spark rate waveform be converted to the spark rate waveform changing circuit 3 of square wave, and the spark rate waveform is changed electric
Whether road 3 is connected with for calculating the square wave frequency of spark rate waveform changing circuit 3 and judging square wave frequency in igniter fire
CPU detection process circuit 4 in frequency scope up to standard, the CPU detection process circuit 4 are connected with for prompting igniter fire
Frequency cue circuit 5 whether up to standard, wherein the igniter fire frequency scope up to standard is between 20HZ in 5HZ.
The spark rate waveform changing circuit 3 includes and divided described in the division module 31 being connected with voltage induced element 2
Die block 31 has been sequentially connected with signal isolation module 32, waveform modular converter 33.
The division module 31 includes the resistance R1 that is connected with voltage induced element 2, the resistance R1 other ends respectively with resistance
R2 one end, the connection of resistance R3 one end, the resistance R2 other ends are connected with signal isolation module 32, and resistance R3 other ends ground connection is described
Signal isolation module 32 is photoelectrical coupler, and photoelectrical coupler input positive terminal is connected with division module 31, and photoelectrical coupler is defeated
Enter negative pole end ground connection, photoelectrical coupler output cathode end is connected with waveform modular converter 33, photoelectrical coupler output negative pole termination
Ground, the waveform modular converter 33 include triode Q1 and FET Q2, triode Q1 emitter stages respectively with 5V power supplys, electricity
Hinder the connection of R4 one end, the resistance R4 other ends are connected with signal isolation module 32, triode Q1 base stages by resistance R5 and signal every
Being connected from module 32, triode Q1 colelctor electrodes are connected with electric capacity C1 one end, resistance R6 one end respectively, electric capacity C1 other ends ground connection,
The resistance R6 other ends are connected with resistance R7 one end, FET Q2 grids respectively, resistance R7 other ends ground connection, FET Q2 leakages
Pole is connected by resistance R8 with 5V power supplys, and electric capacity C2, field are connected in parallel between FET Q2 drain electrodes and FET source electrode
Effect pipe Q2 drain electrode ends are the output end of spark rate waveform changing circuit 3.
Operation principle is as follows：
Igniter is fixed, igniter fire pin is arranged near voltage induced element 2, be i.e. ignition electrode and voltage induced
Element 2 vacantly connects, and initial igniter does ignition operation, igniter intermittence electrion, and discharge voltage reaches 10KV-20KV,
High-tension electricity ionized air, voltage induced element 2 produce induced voltage, are carried out by the resistance R1 in division module 31 and resistance R2
Partial pressure, and isolated by the photoelectrical coupler U1 of signal isolation module 32 and export discharge signal, make in waveform modular converter 33
Triode Q1 conducting so that FET Q2 work, to CPU detection process circuit 4 export square-wave signal, CPU detection process
Circuit 4 calculates the frequency of igniter high-tension ignition by the square-wave signal of output, and whether the spark rate for judging to calculate is in 5HZ
To 20HZ scope up to standard, prompt lid test igniter spark rate whether up to standard finally by cue circuit 5, have high steady
Qualitative and high anti-jamming capacity, erroneous judgement can be reduced, lift homogeneity of product and reliability.
The voltage induced element 2 is provided with the electrion of conductive pin, preferably inductive ignition pin, the conductive pin with
Between the distance between ignition electrode is 2 millimeters to 12 millimeters, avoid damaging survey to hypotelorism between conductive pin and ignition electrode
Trial assembly put in component, too far and reduce detection frequency accuracy.
The cue circuit 5 is digital screen display circuit, more intuitively checks the test result of igniter.
Claims (9)
- A kind of 1. igniter fire frequency target test device, it is characterised in that：Include shell (1), set on the shell (1) There is the voltage induced element (2) being arranged near ignition electrode, the voltage induced element (2) is connected with for detecting igniter point Fiery frequency simultaneously makes spark rate waveform be converted to the spark rate waveform changing circuit (3) of square wave, and the spark rate waveform turns Circuit (3) is changed to be connected with for calculating spark rate waveform changing circuit (3) square wave frequency and judging square wave frequency whether in point CPU detection process circuit (4) in firearm spark rate scope up to standard, the CPU detection process circuit (4) are connected with for carrying Show igniter fire frequency cue circuit whether up to standard (5).
- A kind of 2. igniter fire frequency target test device according to claim 1, it is characterised in that：The igniting frequency It is suitable that rate waveform changing circuit (3) includes division module (31) division module (31) being connected with voltage induced element (2) It is secondary to be connected with signal isolation module (32), waveform modular converter (33).
- A kind of 3. igniter fire frequency target test device according to claim 2, it is characterised in that：The voltage sense Element (2) is answered to be provided with conductive pin.
- A kind of 4. igniter fire frequency target test device according to claim 3, it is characterised in that：The conductive pin Between the distance between ignition electrode is 2 millimeters to 12 millimeters.
- A kind of 5. igniter fire frequency target test device according to claim 2, it is characterised in that：The partial pressure mould Block (31) includes the resistance R1 that is connected with voltage induced element (2), the resistance R1 other ends respectively with resistance R2 one end, resistance R3 mono- End connection, the resistance R2 other ends are connected with signal isolation module (32), resistance R3 other ends ground connection.
- A kind of 6. igniter fire frequency target test device according to claim 2, it is characterised in that：The signal every It is photoelectrical coupler from module (32), photoelectrical coupler input positive terminal is connected with division module (31), photoelectrical coupler input Negative pole end is grounded, and photoelectrical coupler output cathode end is connected with waveform modular converter (33), photoelectrical coupler output negative pole termination Ground.
- A kind of 7. igniter fire frequency target test device according to claim 2, it is characterised in that：The waveform turns Mold changing block (33) includes triode Q1 and FET Q2, and triode Q1 emitter stages connect with 5V power supplys, resistance R4 one end respectively Connect, the resistance R4 other ends are connected with signal isolation module (32), and triode Q1 base stages pass through resistance R5 and signal isolation module (32) connect, triode Q1 colelctor electrodes are connected with electric capacity C1 one end, resistance R6 one end respectively, electric capacity C1 other ends ground connection, resistance The R6 other ends are connected with resistance R7 one end, FET Q2 grids respectively, resistance R7 other ends ground connection, and FET Q2 drain electrodes are logical Cross resistance R8 to be connected with 5V power supplys, electric capacity C2, field-effect are connected in parallel between FET Q2 drain electrodes and FET source electrode Pipe Q2 drain electrode ends are spark rate waveform changing circuit (3) output end.
- A kind of 8. igniter fire frequency target test device according to claim 1, it is characterised in that：The igniter Spark rate scope up to standard is between 20HZ in 5HZ.
- A kind of 9. igniter fire frequency target test device according to claim 1, it is characterised in that：The prompting electricity Road (5) is digital screen display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721231128.4U CN207214129U (en) | 2017-09-22 | 2017-09-22 | A kind of igniter fire frequency target test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721231128.4U CN207214129U (en) | 2017-09-22 | 2017-09-22 | A kind of igniter fire frequency target test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207214129U true CN207214129U (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721231128.4U Active CN207214129U (en) | 2017-09-22 | 2017-09-22 | A kind of igniter fire frequency target test device |
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| CN (1) | CN207214129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477610A (en) * | 2017-09-22 | 2017-12-15 | 中山华帝电子科技有限公司 | A kind of igniter fire frequency target test device |
-
2017
- 2017-09-22 CN CN201721231128.4U patent/CN207214129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477610A (en) * | 2017-09-22 | 2017-12-15 | 中山华帝电子科技有限公司 | A kind of igniter fire frequency target test device |
| CN107477610B (en) * | 2017-09-22 | 2023-03-28 | 中山华帝电子科技有限公司 | Igniter ignition frequency standard test device |
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