CN114294683A - Ignition circuit of gas stove - Google Patents
Ignition circuit of gas stove Download PDFInfo
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- CN114294683A CN114294683A CN202111681643.3A CN202111681643A CN114294683A CN 114294683 A CN114294683 A CN 114294683A CN 202111681643 A CN202111681643 A CN 202111681643A CN 114294683 A CN114294683 A CN 114294683A
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Abstract
The invention relates to the technical field of gas cookers, in particular to an ignition circuit of a gas cooker. When any one of the left ignition switch and the right ignition switch is turned on, the single-tube self-excited oscillation circuit is formed in the control module to oscillate, high-voltage alternating-current voltage is induced, the high-voltage trigger diode is conducted after the set voltage is reached, the capacitor discharges, the follow-up capacitor is charged in the discharging process, the thyristor is conducted, and the high-voltage package discharges in a high-voltage mode to ignite. The invention has the advantages that: the requirement of smooth ignition can be guaranteed when the left furnace end and the right furnace end are ensured only by using one set of ignition circuit, so that materials and labor are saved, and the manufacturing cost is greatly reduced.
Description
Technical Field
The invention relates to the technical field of gas cookers, in particular to an ignition circuit of a gas cooker.
Background
In order to meet the requirement of smooth ignition of two gas cooking ranges at the same time, two sets of the same ignition circuits need to be equipped in the existing gas cooking range ignition circuit, but the manufacturing cost is greatly improved due to the design.
Disclosure of Invention
In order to solve the technical problem that the existing gas stove ignition circuit is high in manufacturing cost, the invention provides a gas stove ignition circuit.
The technical scheme of the invention is as follows:
the ignition circuit of the gas stove comprises a first transformer, a first, a second, a third, a fourth and a fifth crystal diodes, a first, a second and a third capacitors, a first, a second and a fifth thyristor, a first and a second high-voltage packages, wherein the first transformer is coupled with a control module through a coil, the anode of the second crystal diode is connected with the first transformer, the cathode of the second crystal diode is connected with the first capacitor and the cathode of the third crystal diode, the anode of the third crystal diode is connected with the first transformer and a prefabricated power supply, the other end of the first capacitor is connected with the anode of the fifth crystal diode, the cathode of the first thyristor, the cathode of the second crystal diode and the cathode of the third crystal diode are connected and grounded, the cathode of the fifth crystal diode is connected with the cathode of the first crystal diode, the anode of the first thyristor is connected with the anode of the first crystal diode and the other end of the first high-voltage package, the other end of the second capacitor is connected with the gate of the first thyristor and the control module, the anode of the second thyristor is connected with the second high-voltage pack and the anode of the fourth thyristor, the cathode of the fourth thyristor is connected with the other end of the second high-voltage pack and the prefabricated power supply, and the other end of the third capacitor is connected with the gate pole of the second thyristor and the control module.
The control module comprises a first, a second, a third and a fourth transistor, a first, a second electrolytic capacitor and a fourth capacitor, wherein the positive electrode of the first electrolytic capacitor is connected with the base electrode of the left circuit ignition switch and the first transistor, the negative electrode of the first electrolytic capacitor is grounded, the collector electrode of the first transistor is connected with the collector electrode of the second transistor and the base electrode of the third transistor, the emitter electrode of the first transistor is grounded, the positive electrode of the second electrolytic capacitor is connected with the base electrode of the right circuit ignition switch and the base electrode of the second transistor, the negative electrode of the second transistor is grounded, the emitter electrode of the second transistor is grounded, the collector electrode of the third transistor is connected with the first coil in the first transformer, the emitter electrode of the third transistor is connected with the second coil in the first transformer and the prefabricated power supply, the base electrode of the fourth transistor is connected with the other end of the first coil in the first transformer and the fourth capacitor, and the other end of the fourth capacitor is grounded, the collector of the fourth transistor is connected with the other end of the second coil in the first transformer, the emitter of the fourth transistor is grounded, and the first coil is coupled with the second coil.
The control module comprises a fifth transistor, a sixth transistor, a seventh transistor and an eighth transistor, wherein a collector of the fifth transistor is connected with the second capacitor and a gate electrode of the first thyristor, an emitter of the fifth transistor is connected with the prefabricated power supply, a base of the fifth transistor is connected with a collector of the seventh transistor, the emitter of the seventh transistor is grounded, a base of the seventh transistor is connected with the ignition switch on the left path, a collector of the sixth transistor is connected with the third capacitor and a gate electrode of the second thyristor, an emitter of the sixth transistor is connected with the prefabricated power supply, a base of the sixth transistor is connected with a collector of the eighth transistor, an emitter of the eighth transistor is grounded, and a base of the eighth transistor is connected with the ignition switch on the right path.
The two ends of the first capacitor are connected with a first resistor in parallel, a second resistor is connected between the anode of the third thyristor diode and the prefabricated power supply, a third resistor is connected between the cathode of the first thyristor and the gate pole, a fourth resistor is connected between the gate pole of the first thyristor and the second capacitor and between the gate pole of the second thyristor and the control module, a fifth resistor is connected between the cathode of the second thyristor and the gate pole, and a sixth resistor is connected between the gate pole of the second thyristor and the third capacitor and between the gate pole of the third thyristor and the control module.
A seventh resistor is connected between the left ignition switch and the base of the first transistor, an eighth resistor is connected between the right ignition switch and the base of the second transistor, a ninth resistor is connected between the collector of the first transistor and the collector of the second transistor and the base of the third transistor, a tenth resistor is connected between the base of the third transistor and the emitter, and an eleventh resistor is connected between the base of the fourth transistor and the first coil in the first transformer.
A thirteenth resistor is connected between the base of the fifth transistor and the collector of the seventh transistor, a twelfth resistor is connected between the emitter of the fifth transistor and the base, a fourteenth resistor is connected between the base of the seventh transistor and the left ignition switch, a sixteenth resistor is connected between the base of the sixth transistor and the collector of the eighth transistor, a fifteenth resistor is connected between the emitter of the sixth transistor and the base, and a seventeenth resistor is connected between the base of the eighth transistor and the right ignition switch.
The third transistor diode is a high voltage trigger diode.
The first transistor, the second transistor and the fourth transistor are NPN transistors, and the third transistor is PNP transistor.
The fifth transistor and the sixth transistor are PNP type transistors, and the seventh transistor and the eighth transistor are NPN type transistors.
The eleventh resistor is a variable resistor.
The technical scheme of the invention has novel structure and ingenious design, can ensure the simultaneous smooth ignition requirement of the left furnace end and the right furnace end by only using one set of ignition circuit, saves materials and labor and greatly reduces the manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Examples
The ignition circuit of the gas stove as shown in fig. 1 comprises a first transformer T1, a first, a second, a third, a fourth and a fifth crystal diodes D1, D2, D3, D4, D5, a first, a second and a third capacitors C1, C2, C3, a first and a second crystal brake tubes MCR1, MCR2, a first and a second high voltage packets HV1, HV2, wherein the first transformer T2 is connected with the control module 1 through coil coupling, the anode of the second crystal diode D2 is connected with the first transformer T2, the cathode is connected with the cathode of the first capacitor C2 and the cathode of the third crystal diode D2, the anode of the third crystal diode D2 is connected with the first transformer T2 and the prefabricated power supply, the other end of the first capacitor C2 is connected with the anode of the fifth crystal diode D2, the cathode of the first crystal thyristor MCR2, the cathode of the second capacitor C2, the second crystal diode D2 and the cathode of the third crystal diode D2 are connected with the cathode of the first transistor D2 and the prefabricated power supply, the cathode of the first thyristor D2 are connected with the cathode of the first thyristor D2, the anode of a first thyristor MCR1 is connected with the anode of a first thyristor diode D1 and the other end of a first high-voltage packet HV1, the other end of a second capacitor C2 is connected with the gate of the first thyristor MCR1 and the control module 2, the anode of a second thyristor MCR2 is connected with the anode of a second high-voltage packet HV2 and a fourth thyristor diode D4, the cathode of the fourth thyristor D4 is connected with the other end of a second high-voltage packet HV2 and the prefabricated power supply, and the other end of a third capacitor C3 is connected with the gate of the second thyristor MCR2 and the control module 2.
Preferably, a first resistor R1 is connected in parallel to two ends of the first capacitor C1, a second resistor R2 is connected between the anode of the third transistor diode D3 and the first transformer T1 and the pre-power supply, a third resistor R3 is connected between the cathode and the gate of the first thyristor MCR1, a fourth resistor R4 is connected between the gate of the first thyristor MCR1 and the second capacitor C2 and the control module 2, a fifth resistor R5 is connected between the cathode and the gate of the second thyristor MCR2, and a sixth resistor R6 is connected between the gate of the second thyristor MCR2 and the third capacitor C3 and the control module 2.
Preferably, the third transistor diode D3 is a high voltage trigger diode.
Preferably, the control module 1 includes first, second, third and fourth transistors Q1, Q2, Q3, Q4, first and second electrolytic capacitors EC1, EC2 and a fourth capacitor C4, the first electrolytic capacitor EC1 is connected at its positive terminal to the base of the left ignition switch and the first transistor Q1, at its negative terminal to ground, the collector of the first transistor Q1 is connected to the collector of the second transistor Q2 and the base of the third transistor Q3, at its emitter of the first transistor Q1 to ground, the positive terminal of the second electrolytic capacitor EC2 is connected to the base of the right ignition switch and the second transistor Q2, at its negative terminal to ground, at its emitter of the second transistor Q2 to ground, at its collector of the third transistor Q53 to the first coil L1 in the first transformer T1, at its emitter of the third transistor Q3 to the second coil L2 in the first transformer T1 and at its other terminal to the base of the first transistor Q2 and the fourth transistor C2, the other end of the fourth capacitor C4 is grounded, the collector of the fourth transistor Q4 is connected with the other end of the second coil L2 in the first transformer T1, the emitter of the fourth transistor Q4 is grounded, and the first coil L1 is coupled with the second coil L2.
Preferably, a seventh resistor R7 is connected between the left ignition switch and the base of the first transistor Q1, an eighth resistor R8 is connected between the right ignition switch and the base of the second transistor Q2, a ninth resistor R9 is connected between the collector of the first transistor Q1 and the collector of the second transistor Q2 and the base of the third transistor Q3, a tenth resistor R10 is connected between the base and the emitter of the third transistor Q3, and an eleventh resistor R11 is connected between the base of the fourth transistor Q4 and the first coil L1 in the first transformer T1.
Preferably, the first transistor Q1, the second transistor Q2, and the fourth transistor Q4 are NPN transistors, and the third transistor Q3 is a PNP transistor.
Preferably, the eleventh resistor R11 is a variable resistor.
Preferably, the control module 2 includes fifth, sixth, seventh and eighth transistors Q5, Q6, Q7 and Q8, wherein a collector of the fifth transistor Q5 is connected to a gate of the second capacitor C2 and the first thyristor MCR1, an emitter of the fifth transistor Q5 is connected to the prefabricated power supply, a base of the fifth transistor Q5 is connected to a collector of the seventh transistor Q7, an emitter of the seventh transistor Q7 is grounded, a base of the seventh transistor Q7 is connected to the left ignition switch, a collector of the sixth transistor Q6 is connected to a gate of the third capacitor C3 and the second thyristor MCR2, an emitter of the sixth transistor Q6 is connected to the prefabricated power supply, a base of the sixth transistor Q6 is connected to a collector of the eighth transistor Q8, an emitter of the eighth transistor Q8 is grounded, and a base of the eighth transistor Q8 is connected to the right ignition switch.
Preferably, a thirteenth resistor R13 is connected between the base of the fifth transistor Q5 and the collector of the seventh transistor Q7, a twelfth resistor R12 is connected between the emitter of the fifth transistor Q5 and the base, a fourteenth resistor R14 is connected between the base of the seventh transistor Q7 and the left ignition switch, a sixteenth resistor R16 is connected between the base of the sixth transistor Q6 and the collector of the eighth transistor Q8, a fifteenth resistor R15 is connected between the emitter of the sixth transistor Q6 and the base, and a seventeenth resistor R17 is connected between the base of the eighth transistor Q8 and the right ignition switch.
Preferably, the fifth transistor Q5 and the sixth transistor Q6 are PNP transistors, and the seventh transistor Q7 and the eighth transistor Q8 are NPN transistors.
In the invention, the mark L-Power in figure 1 is a left path ignition switch, R-Power is a right path ignition switch, VCC, VDD and VDD' prefabricated Power supplies are actually the same network and are 1.5V Power supplies, and can be a section of 1.5V dry battery under the actual use condition.
The C2/C3 has a circuit which absorbs the leakage current of the fifth transistor Q5/the sixth transistor Q6, shifts the phase of the gate of the first thyristor MCR 1/the second thyristor MCR2 and can be used as a gate charge pool of the first thyristor MCR 1/the second thyristor MCR 2.
When in use:
1. when any one of the left ignition switch and the right ignition switch is switched on, the first electrolytic capacitor EC 1/the second electrolytic capacitor EC2 are charged, the first transistor Q1/the second transistor Q2 are switched on, and the seventh transistor Q7/the eighth transistor Q8 are also switched on;
2. after the first transistor Q1/the seventh transistor Q7 are conducted, the third transistor Q3 is also conducted, a single-tube self-oscillation circuit consisting of a transformer T1, a fourth transistor Q4, an eleventh resistor R11 and a fourth capacitor C4 oscillates, and 150V alternating-current voltage is induced by a point B;
3. the alternating current is rectified by the second crystal diode D2 and then is transmitted to the prefabricated power supply VDD' through the first capacitor C1 to the fifth crystal diode D5 to charge the first capacitor C1; at this time, the polarity of the voltage of the first capacitor C1 is positive left and negative right, and "EGND" is (VDD + 0.6) V; here, it can be determined that the fifth transistor Q5/the sixth transistor Q6 have a forward biased emitter, a forward biased collector, and a saturation state, the potential at the point C/C 'is (VDD-0.3) V, the potential at the EGND is higher than the point D/D', and the first thyristor MCR 1/the second thyristor MCR2 are turned off;
4. as the charging of the first capacitor C1 continues, the voltage at the left end of the first capacitor C1 is higher than EGND by about 150V, the third transistor D3 is turned on, the first capacitor C1 discharges, and the discharging current path is:
the left end of the first capacitor C1 to the third transistor D3 to the prefabricated power supply VDD' to the fifth transistor Q5/sixth transistor Q6 to the fourth resistor R4/sixth resistor R6 to the third resistor R3/fifth resistor R5 to EGND, which is the discharging circuit 1;
the left end of the first capacitor C1 to the third transistor D3 to the pre-fabricated power supply VDD' to the first high voltage packet HV 1/the second high voltage packet HV2 to the first thyristor MCR 1/the second thyristor MCR2 to EGND, which is the discharging circuit 2;
5. relative to EGND, a VDD' +150V pulse is applied to the gate level of the first thyristor MCR 1/the second thyristor MCR2 through the fifth transistor Q5/the sixth transistor Q6, the second capacitor C2/the third capacitor C3 are charged at the same time, the first thyristor MCR 1/the second thyristor MCR2 are conducted, and a maximum di/dt causes the first high-voltage pack HV 1/the second HV2 to complete one high-voltage discharge;
6. with the discharging of the first capacitor C1, the voltage at the end of the first capacitor C1 drops to the threshold value of the third transistor D3, the third transistor D3 opens, and the steps of charging to high-voltage discharging are repeated until the first electrolytic capacitor EC 1/the second electrolytic capacitor EC2 are charged and used up after the ignition switch is turned off, the seventh transistor Q7/the eighth transistor Q8 is turned off, and the first transistor Q1/the second transistor Q2 are turned off.
In the design of the invention, the requirement of smooth ignition of the left furnace end and the right furnace end can be met only by using one set of ignition circuit, so that the material and labor are saved, and the manufacturing cost is greatly reduced.
It should be understood that the above-mentioned embodiments are merely preferred examples of the present invention, and not restrictive, but rather, all the changes, substitutions, alterations and modifications that come within the spirit and scope of the invention as described above may be made by those skilled in the art, and all the changes, substitutions, alterations and modifications that fall within the scope of the appended claims should be construed as being included in the present invention.
Claims (10)
1. Ignition circuit of gas stove, comprising a first transformer (T1), a first, a second, a third, a fourth, a fifth crystal diode (D1, D2, D3, D4, D5), a first, a second, a third capacitor (C1, C2, C3), a first and a second thyristor (MCR 1, MCR 2), a first and a second high voltage pack (HV 1, HV 2), characterized in that: the first transformer (T1) is coupled with the control module (1), the anode of the second crystal diode (D2) is connected with the first transformer (T1), the cathode is connected with the first capacitor (C1) and the cathode of the third crystal diode (D3), the anode of the third crystal diode (D3) is connected with the first transformer (T1) and the prefabricated power supply, the other end of the first capacitor (C1) is connected with the anode of the fifth crystal diode (D5), the cathode of the first thyristor (MCR 1), the second capacitor (C2), the cathode of the second thyristor (MCR 2) and the third capacitor (C1) are connected and grounded, the cathode of the fifth crystal diode (D5) is connected with the cathode of the first crystal diode (D1), the first high-voltage package (HV 1) and the prefabricated power supply, the anode of the first thyristor (MCR 1) is connected with the anode of the first crystal diode (D1) and the other end of the first high-voltage package (HV 1), and the other end of the second thyristor (MCR 462) is connected with the first transformer (T3645) and the prefabricated power supply, the anode of the second thyristor (MCR 2) is connected with the second high-voltage bag (HV 2) and the anode of the fourth crystal diode (D4), the cathode of the fourth crystal diode (D4) is connected with the other end of the second high-voltage bag (HV 2) and the prefabricated power supply, and the other end of the third capacitor (C3) is connected with the gate of the second thyristor (MCR 2) and the control module (2).
2. The gas range ignition circuit according to claim 1, wherein: the control module (1) comprises a first transistor (Q1, a second transistor (Q2), a third transistor (Q3), a Q4), a first electrolytic capacitor (EC 1), a second electrolytic capacitor (EC 2) and a fourth capacitor (C4), wherein the positive electrode of the first electrolytic capacitor (EC 1) is connected with a left ignition switch and the base of the first transistor (Q1), the negative electrode of the first transistor is grounded, the collector of the first transistor (Q1) is connected with the collector of the second transistor (Q2) and the base of the third transistor (Q3), the emitter of the first transistor (Q1) is grounded, the positive electrode of the second electrolytic capacitor (EC 2) is connected with a right ignition switch and the base of the second transistor (Q2), the negative electrode of the second transistor is grounded, the emitter of the second transistor (Q2) is grounded, the collector of the third transistor (Q3) is connected with a first coil (46L 48) in a first transformer (T1), the emitter of the third transistor (Q585) is connected with a third coil (Q3) and the emitter of the first transistor (Q1) and a prefabricated transistor (Q57323), the base of a fourth transistor (Q4) is connected with the other end of a first coil (L1) in a first transformer (T1) and a fourth capacitor (C4), the other end of the fourth capacitor (C4) is grounded, the collector of the fourth transistor (Q4) is connected with the other end of a second coil (L2) in the first transformer (T1), the emitter of the fourth transistor (Q4) is grounded, and the first coil (L1) is coupled with the second coil (L2).
3. The gas range ignition circuit according to claim 1, wherein: the control module (2) comprises fifth, sixth, seventh and eighth triodes (Q5, Q6, Q7 and Q8), wherein a collector of the fifth triode (Q5) is connected with a second capacitor (C2) and a gate of a first thyristor (MCR 1), an emitter of the fifth triode (Q5) is connected with a prefabricated power supply, a base of the fifth triode (Q5) is connected with a collector of a seventh triode (Q7), an emitter of the seventh triode (Q7) is grounded, a base of the seventh triode (Q7) is connected with a left ignition switch, a collector of the sixth triode (Q6) is connected with a gate of a third capacitor (C3) and a gate of a second thyristor (MCR 2), an emitter of the sixth triode (Q6) is connected with the prefabricated power supply, a base of the sixth triode (Q6) is connected with a collector of the eighth triode (Q8), and an emitter of the eighth triode (Q8) is grounded, the base of the eighth transistor (Q8) is connected with the right path ignition switch.
4. The gas range ignition circuit according to claim 1, wherein: first resistance (R1) is parallelly connected at first electric capacity (C1) both ends, be connected with second resistance (R2) between third crystal diode (D3) positive pole and first transformer (T1) and the prefabricated power, be connected with third resistance (R3) between first thyristor (MCR 1) negative pole and the gate pole, be connected with fourth resistance (R4) between first thyristor (MCR 1) gate pole and second electric capacity (C2) and control module (2), be connected with fifth resistance (R5) between second thyristor (MCR 2) negative pole and the gate pole, be connected with sixth resistance (R6) between second thyristor (MCR 2) gate pole and third electric capacity (C3) and control module (2).
5. The gas range ignition circuit according to claim 2, wherein: a seventh resistor (R7) is connected between the base electrode of the left ignition switch and the first transistor (Q1), an eighth resistor (R8) is connected between the base electrode of the right ignition switch and the base electrode of the second transistor (Q2), a ninth resistor (R9) is connected between the collector electrode of the first transistor (Q1), the collector electrode of the second transistor (Q2) and the base electrode of the third transistor (Q3), a tenth resistor (R10) is connected between the base electrode of the third transistor (Q3) and the emitter electrode, and an eleventh resistor (R11) is connected between the base electrode of the fourth transistor (Q4) and the first coil (L1) in the first transformer (T1).
6. The gas range ignition circuit according to claim 3, wherein: a thirteenth resistor (R13) is connected between the base of the fifth transistor (Q5) and the collector of the seventh transistor (Q7), a twelfth resistor (R12) is connected between the emitter of the fifth transistor (Q5) and the base, a fourteenth resistor (R14) is connected between the base of the seventh transistor (Q7) and the left ignition switch, a sixteenth resistor (R16) is connected between the base of the sixth transistor (Q6) and the collector of the eighth transistor (Q8), a fifteenth resistor (R15) is connected between the emitter of the sixth transistor (Q6) and the base, and a seventeenth resistor (R17) is connected between the base of the eighth transistor (Q8) and the right ignition switch.
7. The gas range ignition circuit according to claim 1, wherein: the third transistor diode (D3) is a high voltage trigger diode.
8. The gas range ignition circuit according to claim 2, wherein: the first transistor (Q1), the second transistor (Q2) and the fourth transistor (Q4) are NPN transistors, and the third transistor (Q3) is a PNP transistor.
9. The gas range ignition circuit according to claim 3, wherein: the fifth transistor (Q5) and the sixth transistor (Q6) are PNP type transistors, and the seventh transistor (Q7) and the eighth transistor (Q8) are NPN type transistors.
10. The gas range ignition circuit according to claim 5, wherein: the eleventh resistor (R11) is a variable resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681643.3A CN114294683A (en) | 2021-12-30 | 2021-12-30 | Ignition circuit of gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681643.3A CN114294683A (en) | 2021-12-30 | 2021-12-30 | Ignition circuit of gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114294683A true CN114294683A (en) | 2022-04-08 |
Family
ID=80975272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111681643.3A Pending CN114294683A (en) | 2021-12-30 | 2021-12-30 | Ignition circuit of gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114294683A (en) |
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2021
- 2021-12-30 CN CN202111681643.3A patent/CN114294683A/en active Pending
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