CN113266846A - Intelligent flameout control structure based on ion induction - Google Patents
Intelligent flameout control structure based on ion induction Download PDFInfo
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- CN113266846A CN113266846A CN202110654674.3A CN202110654674A CN113266846A CN 113266846 A CN113266846 A CN 113266846A CN 202110654674 A CN202110654674 A CN 202110654674A CN 113266846 A CN113266846 A CN 113266846A
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- 230000006698 induction Effects 0.000 title claims abstract description 19
- 150000002500 ions Chemical class 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 abstract description 34
- 239000002737 fuel gas Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/28—Ignition circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/04—Gaseous fuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
Abstract
The invention discloses an intelligent flameout control structure based on ion induction, which relates to the field of intelligent flameout protection of fuel gas and comprises a main control chip, an air valve, a burner, an ignition switch, an ignition needle, an ignition driving module for driving the ignition needle to ignite and an ignition needle level information transmission module; the gas valve is communicated with the combustor, and the ignition needle is positioned at one side of the combustor and is used for igniting the combustor; the main control chip detects the working state of the ignition switch; the main control chip controls the air valve and the ignition driving module to be opened or closed simultaneously according to the working state of the ignition switch; the level information of the ignition needle is changed after the ignition needle senses ions; the ignition needle level information transmission module transmits the level information of the ignition needle to the main control chip; the invention solves the technical problem that in the prior art, gas is easy to leak when accidental flameout and power failure occur, so that the life safety of a user is easy to threaten.
Description
Technical Field
The invention relates to the technical field of intelligent flameout protection of fuel gas, in particular to an intelligent flameout control structure based on ion induction.
Background
With the increasing living standard, more and more household users use products such as intelligent gas cookers, gas, ovens and the like. The user can control the product to work by controlling the main control chip. However, when the gas appliance is ignited again after accidental failure and flameout, if the ignition is unsuccessful, gas leakage is easy to occur, and the gas source cannot be safely cut off. And after the unexpected outage, when the call comes again, if the user forgets to close the main control chip, the main control chip easily controls the gas appliance to independently work, and the life safety of the user is easily threatened.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an intelligent flameout control structure based on ion induction, which solves the technical problem that in the prior art, fuel gas is easy to leak when accidental flameout and power failure occur, so that the life safety of a user is easy to threaten.
In order to achieve the purpose, the invention provides an intelligent flameout control structure based on ion induction, which comprises a main control chip, an air valve, a burner, an ignition switch, an ignition needle, an ignition driving module for driving the ignition needle to ignite and an ignition needle level information transmission module; the gas valve is communicated with the combustor, and the ignition needle is positioned at one side of the combustor and is used for igniting the combustor; the main control chip detects the working state of the ignition switch; the main control chip controls the air valve and the ignition driving module to be opened or closed simultaneously according to the working state of the ignition switch; the level information of the ignition needle is changed after the ignition needle senses ions; the ignition needle level information transmission module transmits the level information of the ignition needle to the main control chip; based on the fact that an ignition switch is in an on state, when the main control chip detects that an ignition needle is in a low level, the main control chip controls an ignition driving module to be in an off state, and the main control chip controls an air valve to be in an on state; based on that an ignition switch is in an on state, when the main control chip detects that an ignition needle is in a high level, the main control chip controls an air valve and an ignition driving module to be in the on state, if the burner is not ignited within a specified time, the main control chip controls the air valve and the ignition driving module to be in a closed and locked state, and after the main control chip receives a signal of turning on the ignition switch again, the main control chip controls the air valve and the ignition driving module to be turned on again; when the main control chip is powered off, the main control chip controls the air valve and the ignition driving module to be in a closed and locked state, and after the main control chip is powered on and the ignition switch is turned on again, the main control chip controls the air valve and the ignition driving module to be turned on again.
In the technical scheme, the ignition driving module comprises a boost starting control circuit, a booster circuit and a high-voltage booster circuit, wherein the input end of the boost starting control circuit is connected with the main control chip, the output end of the boost starting control circuit is connected with the input end of the booster circuit, the output end of the booster circuit is connected with the input end of the high-voltage booster circuit, and the output end of the high-voltage booster circuit is connected with the ignition needle.
In the above technical scheme, the power supply further comprises a diode, an input end of the diode is connected with an output end of the booster circuit, and an output end of the diode is connected with an input end of the high-voltage booster circuit.
IN the technical scheme, the ignition needle level information transmission module comprises a capacitor and a zero-crossing comparator, wherein an IN-pin and an IN + pin are arranged on the zero-crossing comparator, the IN + pin of the zero-crossing comparator is electrically connected with the output end of the high-voltage booster circuit, and the output end of the zero-crossing comparator is electrically connected with the main control chip; one end of the capacitor is connected with the output end of the booster circuit, and the other end of the capacitor is electrically connected with an IN + pin of the zero-crossing comparator.
IN the above technical scheme, the capacitor further comprises a first resistor, one end of the first resistor is connected with the capacitor, and the other end of the first resistor is connected with the IN + pin.
IN the above technical scheme, the power supply further comprises a second resistor, wherein one end of the second resistor is connected with the output end of the high-voltage booster circuit, and the other end of the second resistor is connected with the IN + pin.
In the above technical scheme, the air valve is an electromagnetic valve, the air valve includes an air valve coil and a valve, and the main control chip controls the opening or closing of the valve by controlling whether the air valve coil is electrified or not.
In the above technical solution, the air valve coil includes a start coil and a hold coil.
In the technical scheme, the main control chip detects the disconnection or the connection of the ignition switch by detecting whether the ignition switch touches the micro switch.
In the above technical scheme, the main control chip is a single chip microcomputer.
Compared with the prior art, the invention has the beneficial effects that:
when using this technical scheme, the user is with the ignition switch closure back, and at this moment, main control chip will begin work and give the valve with signal transmission, and the valve will be opened, and the gas will lead to the combustor through the valve this moment. At the moment, the ignition needle level information transmission module detects that no flame exists, transmits a high level to the main control chip, then the main control chip transmits a signal to the ignition driving module, and then the ignition needle performs ignition work; at the moment, when the ignition needle level information transmission module detects that flame exists, the low level is transmitted to the main control chip, the main control chip controls the ignition driving module to be in a closed state, and the main control chip controls the air valve to be in an open state. The main control chip can judge whether flames exist on the combustor or not by detecting the received high level or low level.
When the flame of the burner is accidentally extinguished or the burner is not ignited by the ignition driving module within the specified time, namely, the level information transmission module of the ignition needle detects that no flame exists within the specified time, the high level is transmitted to the main control chip, the main control chip controls the air valve and the ignition driving module to be in a closed and locked state, and at the moment, only after the main control chip receives the signal of the ignition switch which is turned on again, the main control chip controls the air valve and the ignition driving module to be turned on again.
When the ignition switch is in an open state, if the main control chip is powered off, the main control chip controls the air valves and the ignition driving module to be in a closed and locked state, after the ignition switch is powered on again, if the ignition switch is detected to be in the open state, the main control chip can prohibit all the air valves and the ignition driving module from being opened, at the moment, the main control chip enters a safety protection state, and all the output circuits are completely closed and locked. And only after the user restores the ignition switch to the OFF state again, the main control chip can release the locking state. Therefore, when power failure occurs, the air valve is closed, and the gas cannot continue to flow to the burner, so that the gas cannot continue to flow out after the power failure, and the safety of a user is protected. After the power is on, even if the ignition switch is still in a working state, the main control chip is still in a locking state, the air valve and the ignition driving module cannot be started to work, at the moment, after the power is off accidentally, even if a user forgets to close the ignition switch, after the power is on, the cooker adopting the structure of the technical scheme cannot be started to work autonomously, and only the user unlocks the locking state of the main control chip, the cooker can be used, so that the safety of the user is greatly protected.
In summary, the principle of the present solution is that the flame ionizes the air, so that it can conduct electricity to form a protective circuit, which has the advantage of quickly cutting off the circuit once the flame disappears. No matter after unexpected flame-out or outage, can all cut off the air supply safely and close the ignition function, solve unexpected flame-out and the easy problem of revealing of gas when outage to threaten user's life safety easily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. FIG. 1 is a schematic structural diagram of an intelligent flameout control structure based on ion induction according to the present invention;
FIG. 2 is a detailed structural diagram of an intelligent flameout control structure based on ion induction according to the present invention;
fig. 3 is a schematic diagram of the working principle of an intelligent flameout control structure based on ion induction provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1-3, the present embodiment provides an intelligent flameout control structure based on ion induction, which includes a main control chip 1, an air valve 2, a burner 3, an ignition switch 4, an ignition needle 5, an ignition driving module 6 for driving the ignition needle 5 to ignite, and an ignition needle level information transmission module 7.
The gas valve 2 is communicated with the burner 3, and the ignition needle 5 is positioned at one side of the burner 3 and used for igniting the burner 3. The main control chip 1 is preferably a single chip microcomputer, and can simultaneously control the gas valve 2 and the ignition driving module 6 to be opened or closed according to the working state of the ignition switch 4. The operating state of the ignition switch 4 is preferably a state in which the user touches the micro switch, or may be a state in which the user touches the touch panel. The level information of the ignition needle 5 is changed after ions are sensed; the ignition needle level information transmission module 7 transmits the level information of the ignition needle 5 to the main control chip 1.
Specifically, the user touches the micro switch, the ignition switch 4 will be closed and in an open state, at this time, the main control chip 1 will start working and transmit a signal to the gas valve 2, the gas valve 2 will be opened, and at this time, the gas will be led to the burner 3 through the gas valve 2. At this time, the ignition needle level information transmission module 7 detects that no flame exists, transmits a high level to the main control chip 1, then the main control chip 1 transmits a signal to the ignition driving module 6, and then the ignition needle 5 performs ignition work; at this time, when the ignition needle level information transmission module 7 detects that there is flame, the low level is transmitted to the main control chip 1, at this time, the main control chip 1 controls the ignition driving module 6 to be in a closed state, and the main control chip 1 controls the air valve 2 to keep in an open state. The main control chip 1 can determine whether there is a flame on the burner 3 by detecting the received high level or low level.
When the flame of the burner 3 is accidentally extinguished or the burner 3 is not ignited by the ignition driving module 6 within the specified time, namely, the level information transmission module 7 of the ignition needle detects no flame within the specified time, a high level is transmitted to the main control chip 1, the main control chip 1 controls the air valve 2 and the ignition driving module 6 to be in a closed and locked state, and at the moment, only after the main control chip 1 receives a signal for turning on the ignition switch 4 again, the main control chip 1 controls the air valve 2 and the ignition driving module 6 to be turned on again.
When the ignition switch 4 is in an open state, if the main control chip 1 is powered off, the main control chip 1 controls the air valves 2 and the ignition driving module 6 to be in a closed and locked state, after the ignition switch 4 is powered on again, if the ignition switch 4 is detected to be in the open state, the main control chip 1 also prohibits all the air valves 2 and the ignition driving module 6 from being opened and operated, and at the moment, the main control chip 1 enters a safety protection state, and all the output circuits are completely closed and locked. Only when the user restores the ignition switch to the OFF state again, the main control chip 1 releases the lock-up state. Therefore, when power failure occurs, the gas valve 2 is closed, and gas cannot flow to the combustor 3 continuously, so that the gas cannot flow continuously after the power failure, and the safety of a user is protected. After a call comes, even if the ignition switch 4 is still in a working state, the main control chip 1 is in a locking state, and the air valve 2 and the ignition driving module 6 cannot be opened to work, at the moment, after the power is cut off accidentally, even if a user forgets to close the ignition switch 4, after the call comes, the cooker using the structure of the technical scheme cannot be opened to work autonomously, and only the user unlocks the locking state of the main control chip 1, the cooker can be used, and the safety of the user is greatly protected.
In summary, the principle of the present solution is that the flame ionizes the air, so that it can conduct electricity to form a protective circuit, which has the advantage of quickly cutting off the circuit once the flame disappears. No matter after unexpected flame-out or outage, can all cut off the air supply safely and close the ignition function, solve unexpected flame-out and the easy problem of revealing of gas when outage to threaten user's life safety easily.
Example two
As shown in fig. 2 to fig. 3, the ignition driving module 6 and the ignition needle level information transmission module 7 are mainly described in detail in this embodiment, and the rest of the structure is the same as that of the first embodiment and will not be described again.
The ignition drive module 6 of the present embodiment preferably includes a boost start control circuit 61, a boost circuit 62, and a high-voltage boost circuit 63. The input end of the boost start control circuit 61 is connected with the main control chip 1, the output end of the boost start control circuit 61 is connected with the input end of the boost circuit 62, the output end of the boost circuit 62 is connected with the input end of the high-voltage boost circuit 63, and the output end of the high-voltage boost circuit 63 is connected with the ignition needle. When the main control chip 1 detects that the ignition switch 4 is closed, the ignition needle level information transmission module 7 cannot detect flame and outputs high level to the main control chip 1. At this time, the main control chip 1 outputs a high level to the voltage boost circuit 62 and outputs a PWM pulse signal to the voltage boost start control circuit 61, then the voltage boost circuit 62 starts to operate, at this time, the voltage boost circuit 62 boosts the direct current voltage of 4.5V to 36V, then the current boosts the voltage to 10KV again through the high voltage boost circuit 63, and then the boosted voltage is transmitted to the ignition needle 5, and the ignition needle 5 ignites the gas through a high voltage electric spark generated when discharging the air. After the burner 3 is ignited to generate flame, the voltage output to the main control chip 1 by the ignition needle level information transmission module 7 is changed into low level. When the main control chip 1 recognizes the low level, the output to the booster circuit 62 and the boost start control circuit 61 is stopped, and at this time, the high voltage booster circuit 63 is also stopped, and the ignition is stopped. It is preferable that a diode 8 is provided between the booster circuit 62 and the high-voltage booster circuit 63, an input terminal of the diode 8 is connected to an output terminal of the booster circuit 62, and an output terminal of the diode 8 is connected to an input terminal of the high-voltage booster circuit 63. The diode 8 may only allow current to pass in a single direction. Therefore, the diode 8 is provided to allow only the current to flow from the booster circuit 62 to the high-voltage booster circuit 63, and to block the current from flowing from the high-voltage booster circuit 63 to the booster circuit 62.
The ignition needle level information transfer module 7 of the present embodiment includes a capacitor 71 and a zero-crossing comparator 72, the zero-crossing comparator 72 is provided with an IN-pin 721 and an IN + pin 722, the IN + pin 722 of the zero-crossing comparator 72 is electrically connected to the output end of the high-voltage boost circuit 63, and the output end of the zero-crossing comparator 72 is electrically connected to the main control chip 1; one end of the capacitor 71 is connected to the output end of the booster circuit 62, and the other end thereof is electrically connected to the IN + pin 722 of the zero-crossing comparator 72. Specifically, after boosting, a relatively high ac voltage is obtained, which is connected to the IN + pin 722 of the excess comparator 72 through the capacitor 71, and the other is connected to the high voltage boost line 63. When there is no flame, the air will not be ionized, and the high voltage current on the ignition needle 5 cannot pass through the flame forming circuit loop, so that the voltage of the IN + pin 722 is higher than the voltage of the IN-pin 721, and therefore the output end of the zero-crossing comparator circuit 72 is at high level and is transmitted to the main control chip 1. When a flame exists, ions are generated IN the flame, high voltage on the ignition needle 5 passes through the ion forming loop, and current flows through the flame forming loop from the high voltage booster circuit 63 and the ignition needle 5, so that the voltage of the IN + pin 722 is lower than that of the IN-pin 721, and the output end of the zero-crossing comparator 72 is at a low level and is transmitted to the main control chip. The flame raises the temperature of the surrounding air, which ionizes it and conducts electricity to form a protective circuit, which has the advantage of quickly breaking the circuit once the flame has disappeared. IN addition, IN this embodiment, it is preferable to provide the first resistor 9, one end of the first resistor 9 is connected to the capacitor 71, and the other end thereof is connected to the IN + pin 722. A second resistor 10 is further provided, one end of the second resistor 10 is connected to the high voltage boost circuit 63, and the other end thereof is connected to the IN + pin 722.
The gas valve 2 of the present embodiment is preferably an electromagnetic valve, the gas valve 2 includes a gas valve coil 11 and a valve, and the main control chip 1 controls the opening or closing of the valve by controlling whether the gas valve coil 11 is energized. When the main control chip 1 transmits an electric signal to the air valve coil 11, a magnetic field generated by current on the air valve coil 11 attracts a valve of the air valve 2; when the power is off, no current passes through the magnetic field generated on the air valve coil 11, the valve of the air valve 2 cannot be attracted, and the air valve 2 is closed. When the main control chip 1 detects that the ignition switch 5 is turned off, the air valve coil 11 is completely powered off, and the valve of the air valve 2 is closed. The burner 3 is turned off due to the cut-off of the gas source. The gas valve coil 11 preferably includes a start coil 111 and a hold coil 112, the start coil 111 and the hold coil 112 are powered on and attract the valve of the gas valve 2, after the gas reaches the burner 3 through the gas valve 2 and is combusted, the ignition needle level detection module 7 detects an ion signal of flame, the main control chip 1 transmits a signal to the start coil 111, the start coil 111 is powered off and stops working, but the hold coil 112 keeps working, so that the gas valve works in a power saving state.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. An intelligent flameout control structure based on ion induction is characterized by comprising a main control chip, an air valve, a burner, an ignition switch, an ignition needle, an ignition driving module for driving the ignition needle to ignite and an ignition needle level information transmission module;
the gas valve is communicated with the combustor, and the ignition needle is positioned at one side of the combustor and is used for igniting the combustor; the main control chip detects the working state of the ignition switch; the main control chip controls the air valve and the ignition driving module to be opened or closed simultaneously according to the working state of the ignition switch; the level information of the ignition needle is changed after the ignition needle senses ions; the ignition needle level information transmission module transmits the level information of the ignition needle to the main control chip;
based on the fact that an ignition switch is in an on state, when the main control chip detects that an ignition needle is in a low level, the main control chip controls an ignition driving module to be in an off state, and the main control chip controls an air valve to be in an on state;
based on that an ignition switch is in an on state, when the main control chip detects that an ignition needle is in a high level, the main control chip controls an air valve and an ignition driving module to be in the on state, if the burner is not ignited within a specified time, the main control chip controls the air valve and the ignition driving module to be in a closed and locked state, and after the main control chip receives a signal of turning on the ignition switch again, the main control chip controls the air valve and the ignition driving module to be turned on again;
when the main control chip is powered off, the main control chip controls the air valve and the ignition driving module to be in a closed and locked state, and after the main control chip is powered on and the ignition switch is turned on again, the main control chip controls the air valve and the ignition driving module to be turned on again.
2. The intelligent flameout control structure based on ion induction as claimed in claim 1, wherein the ignition driving module comprises a boost start control circuit, a boost circuit and a high voltage boost circuit, an input end of the boost start control circuit is connected with the main control chip, an output end of the boost start control circuit is connected with an input end of the boost circuit, an output end of the boost circuit is connected with an input end of the high voltage boost circuit, and an output end of the high voltage boost circuit is connected with the ignition needle.
3. The intelligent flameout control structure based on ion induction as claimed in claim 2, further comprising a diode, wherein an input end of the diode is connected with an output end of the boost circuit, and an output end of the diode is connected with an input end of the high-voltage boost circuit.
4. The intelligent flameout control structure based on ion induction as claimed IN claim 2, wherein the ignition needle level information transfer module comprises a capacitor and a zero-crossing comparator, the zero-crossing comparator is provided with an IN-pin and an IN + pin, the IN + pin of the zero-crossing comparator is electrically connected with the output end of the high-voltage boost circuit, and the output end of the zero-crossing comparator is electrically connected with the main control chip; one end of the capacitor is connected with the output end of the booster circuit, and the other end of the capacitor is electrically connected with an IN + pin of the zero-crossing comparator.
5. The structure of claim 4, further comprising a first resistor, wherein one end of the first resistor is connected to the capacitor, and the other end of the first resistor is connected to the IN + pin.
6. The intelligent flameout control structure based on ion induction as claimed IN claim 4, further comprising a second resistor, wherein one end of the second resistor is connected to the output end of the high voltage boost circuit, and the other end of the second resistor is connected to the IN + pin.
7. The intelligent flameout control structure based on ion induction is characterized in that the air valve is an electromagnetic valve, the air valve comprises an air valve coil and a valve, and the main control chip controls the opening or closing of the valve by controlling whether the air valve coil is electrified or not.
8. The intelligent flameout control structure based on ion induction as claimed in claim 7, wherein the gas valve coil comprises a start coil and a hold coil.
9. The intelligent flameout control structure based on ion induction as claimed in claim 1, wherein the main control chip detects the on or off of the ignition switch by detecting whether the ignition switch touches the micro switch.
10. The intelligent flameout control structure based on ion induction as claimed in claim 1, wherein the main control chip is a single chip microcomputer.
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| CN108506972A (en) * | 2018-04-12 | 2018-09-07 | 无锡市启山林科技有限公司 | The flame-out safety system of commercial gas kitchen tools single needle ion and control method |
| CN208154533U (en) * | 2018-04-12 | 2018-11-27 | 无锡市启山林科技有限公司 | Commercial gas kitchen tools single needle ion stops working safety system |
| CN109611846A (en) * | 2018-12-24 | 2019-04-12 | 徐建波 | A kind of burner with flame-out protector |
| CN217154242U (en) * | 2021-06-11 | 2022-08-09 | 广东海新智能厨房股份有限公司 | Intelligent flameout control structure based on ion induction |
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Address after: 523000 No. 1, Haixin Road, Hongmei Town, Dongguan City, Guangdong Province Applicant after: Guangdong Haixin intelligent kitchen Co.,Ltd. Address before: 523000 Yingmei village, Hongmei Town, Hongmei Town, Dongguan, Guangdong Applicant before: DONGGUAN HAIXIN METAL TECHNOLOGY Co.,Ltd. |
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