CN210861212U - Pulse ignition controller for dry-burning-resistant gas cooker - Google Patents
Pulse ignition controller for dry-burning-resistant gas cooker Download PDFInfo
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- CN210861212U CN210861212U CN201921563579.7U CN201921563579U CN210861212U CN 210861212 U CN210861212 U CN 210861212U CN 201921563579 U CN201921563579 U CN 201921563579U CN 210861212 U CN210861212 U CN 210861212U
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Abstract
The utility model discloses a pulse ignition controller for dry-burning-proof gas cooker, which comprises a singlechip U1, a controlled booster circuit unit U2, a left furnace ignition circuit unit U3, a right furnace ignition circuit unit U4, a pot bottom temperature measuring circuit, a resistor R8 and a resistor R9 for measuring the temperature of the pot bottom, a left furnace secondary coil controller circuit, a right furnace secondary coil controller circuit, a connecting wire harness with external parts, an ignition high-voltage output terminal, resistors R10 and R11, one end of the controlled booster circuit unit U2 is connected with VDD, the other end is connected with a triode Q1, the triode Q1 is also connected with a singlechip U1 through a resistor R1, one end of the left furnace ignition circuit unit U3 is connected with the singlechip U1, the other end is connected with a left furnace ignition needle T1, and one end of the right furnace ignition circuit unit U4 is connected with the singlechip U1, and the other end of the right furnace ignition circuit unit U4 is connected with a right furnace ignition needle T2.
Description
Technical Field
The utility model relates to a gas cooking utensils ignition controller, specific theory especially a pulse ignition controller for preventing dry combustion method gas cooking utensils.
Background
At present, domestic household gas cookers adopt two flame-out safety protection devices, one of which is composed of a thermocouple probe and a special non-self-suction thermocouple electromagnetic valve and is also called as a thermoelectric flame-out safety protection device; and the other one is composed of a flame ion probe and a self-suction electromagnetic valve, and is also called a self-suction electromagnetic valve type flameout safety protection device.
At present, most of domestic cookers are those with flameout safety protection function, but the gas cooker has a disadvantage that when a user forgets to "cook" food on the gas cooker carelessly or for other reasons, dry burning and ignition are caused by lack of water or over-high oil temperature in the cooker.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pulse ignition controller for preventing dry combustion method gas cooking utensils to solve the problem that provides among the above-mentioned background art.
The technical scheme of the utility model is realized like this: a pulse ignition controller for a dry combustion preventing gas cooker is characterized by comprising a single chip microcomputer U1, a controlled booster circuit unit U2, a left furnace ignition circuit unit U3, a right furnace ignition circuit unit U4, a pot bottom temperature measuring circuit, a resistor R8 and a resistor R9 for measuring the temperature of a pot bottom, a left furnace auxiliary coil controller circuit, a right furnace auxiliary coil controller circuit, a connecting wire harness connected with external parts, an ignition high-voltage output terminal, resistors R10 and R11, wherein one end of the controlled booster circuit unit U2 is connected with VDD, the other end of the controlled booster circuit unit U2 is connected with a triode Q1, the triode Q1 is further connected with the single chip microcomputer U1 through the resistor R1, one end of the left furnace ignition circuit unit U3 is connected with the single chip microcomputer U1, the other end of the left furnace ignition circuit unit U1, one end of the right furnace ignition circuit unit U4 is connected with the U1, and the other end of the right furnace ignition needle T2 is connected, the single chip microcomputer U1 still is connected with switch circuit, left stove auxiliary coil controller circuit, right stove auxiliary coil controller circuit respectively, connecting resistance R10, resistance R11 on the switch circuit, the other end and the GND of resistance R10 and resistance R11 are connected.
In the pulse ignition controller for the dry-burning-resistant gas cooker, the switch circuit comprises a left furnace switch circuit and a right furnace switch circuit, and the left furnace switch circuit and the right furnace switch circuit are respectively connected with the single chip microcomputer U1 in series.
In the above pulse ignition controller for dry combustion preventing gas cooker, the left oven switch circuit includes a left oven switch K1, one end of the left oven switch K1 is connected to VCC, the other end is connected to a single chip microcomputer U1, a resistor R10 is connected in parallel to a wire between the left oven switch K1 and the single chip microcomputer U1, one end of the resistor R10 is connected to the left oven switch K1, the other end is connected to GND, the right oven switch circuit includes a right oven switch K2, one end of the right oven switch K2 is connected to VCC, the other end is connected to the single chip microcomputer U1, a resistor R11 is connected in parallel to a wire between the right oven switch K2 and the single chip microcomputer U1, one end of the resistor R11 is connected to the right oven switch K2, and the other end is connected to GND.
In the above-mentioned pulse ignition controller for preventing dry combustion method gas cooking utensils, bottom of a boiler temperature measurement circuit is including measuring resistance R8, resistance R9, left stove bottom of a boiler temperature probe RT1 and right stove bottom of a boiler temperature probe RT2 of bottom of a boiler temperature, this left stove bottom of a boiler temperature probe RT1 and right stove bottom of a boiler temperature probe RT 2's one end all is connected with GND, the other end all is connected with singlechip U1, this resistance R8's one end is connected between left stove bottom of a boiler temperature probe RT1 and singlechip U1, VCC is connected to the other end, this resistance R9 one end is connected between right stove bottom of a boiler temperature probe RT2 and singlechip U1, VCC is connected to the other end.
In the pulse ignition controller for the dry combustion preventing gas cooker, the left furnace secondary coil controller circuit comprises a resistor R2, a resistor R3, a resistor R4, a triode Q2, a triode Q3, a left furnace double coil electromagnetic valve L1 and a left furnace thermocouple probe F1, one end of the resistor R2 is connected with a singlechip U1, the other end of the resistor R2 is connected with a triode Q2, the triode Q2 is further connected with VDD, one end of the resistor R4 is connected with the singlechip U1, the other end of the resistor R4 is connected with a triode Q3, the triode Q3 is further connected with GND, the triode Q2 and the triode Q3 are connected with a resistor R3, the resistor R3 and the triode Q2 are connected with one end of a left furnace double coil electromagnetic valve L1 through a lead wire, the other end of the left furnace double coil electromagnetic valve L1 is connected with VCC, and the left furnace thermocouple probe F1 is connected between the left double coil electromagnetic valve L1 and VCC in parallel.
In the pulse ignition controller for the dry combustion preventing gas cooker, the right furnace secondary coil controller circuit comprises a resistor R5, a resistor R6, a resistor R7, a triode Q4, a triode Q5, a right furnace double coil solenoid valve L2 and a right furnace thermocouple probe F2, one end of the resistor R5 is connected with a single chip microcomputer U1, the other end of the resistor R2 is connected with a triode Q4, the triode Q4 is further connected with VDD, one end of the resistor R7 is connected with a single chip microcomputer U1, the other end of the resistor R7 is connected with a triode Q5, the triode Q5 is further connected with GND, the triode Q4 and the triode Q5 are connected with each other through a resistor R6, the resistor R6 and the triode Q4 are connected with one end of a right furnace double coil solenoid valve L2 through a lead, the other end of the right furnace double coil solenoid valve L2 is connected with VCC, and the right furnace thermocouple probe F2 is connected in parallel between a right furnace double coil.
The beneficial effects of the utility model reside in that:
1. the controlled booster circuit unit U2 is controlled by the single chip microcomputer, and is started by the single chip microcomputer to work when the gas valve needs to be closed, so that the electric energy is saved, and the service life of a battery is prolonged;
2. the singlechip is adopted to control the on or off of the triode, thereby realizing the functions of zero-second starting, dry-burning prevention closing of the gas valve and timing closing of the gas valve of the gas cooker.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The claimed technical solution of the present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the pulse ignition controller for the dry combustion preventing gas cooker is characterized by comprising a single chip microcomputer U1, a controlled boosting circuit unit U2, a left furnace ignition circuit unit U3, a right furnace ignition circuit unit U4, a pot bottom temperature measuring circuit, a resistor R8 and a resistor R9 for measuring the pot bottom temperature, a left furnace auxiliary coil controller circuit, a right furnace auxiliary coil controller circuit, a connecting wire harness for external parts, an ignition high-voltage output terminal, resistors R10 and R11, wherein one end of the controlled boosting circuit unit U2 is connected with VDD, the other end is connected with a triode Q1, the triode Q1 is further connected with the single chip microcomputer U1 through a resistor R1, one end of the left furnace ignition circuit unit U3 is connected with the single chip microcomputer U1, the other end is connected with a left furnace ignition needle T1, one end of the right furnace ignition circuit unit U4 is connected with the U1, and the other end is connected with a right single chip microcomputer ignition needle T2, the single chip microcomputer U1 still is connected with switch circuit, left stove auxiliary coil controller circuit, right stove auxiliary coil controller circuit respectively, connecting resistance R10, resistance R11 on the switch circuit, the other end and the GND of resistance R10 and resistance R11 are connected.
The switch circuit comprises a left furnace switch circuit and a right furnace switch circuit, the left furnace switch circuit and the right furnace switch circuit are connected with a single chip microcomputer U1 in series, the left furnace switch circuit comprises a left furnace switch K1, one end of the left furnace switch K1 is connected with VCC, the other end of the left furnace switch K1 is connected with a single chip microcomputer U1, a resistor R10 is connected in parallel on a lead between the left furnace switch K1 and the single chip microcomputer U1, one end of the resistor R10 is connected with the left furnace switch K1, the other end of the resistor R10 is connected with GND, the right furnace switch circuit comprises a right furnace switch K2, one end of the right furnace switch K2 is connected with VCC, the other end of the right furnace switch K1 is connected, a resistor R11 is connected in parallel on a lead between the right furnace switch K2 and the single chip microcomputer U1, one end of the resistor R11 is connected with the right furnace switch K2, and.
The pot bottom temperature measuring circuit comprises a resistor R8 for measuring the temperature of the pot bottom, a resistor R9, a left furnace pot bottom temperature probe RT1 and a right furnace pot bottom temperature probe RT2, one ends of the left furnace pot bottom temperature probe RT1 and the right furnace pot bottom temperature probe RT2 are connected through GND, the other ends of the left furnace pot bottom temperature probe RT1 and the right furnace pot bottom temperature probe RT2 are connected with a single chip microcomputer U1, one end of the resistor R8 is connected between the left furnace pot bottom temperature probe RT1 and the single chip microcomputer U1, the other end of the resistor R9 is connected with VCC, one end of the resistor R9 is connected between the right furnace pot bottom temperature probe RT2 and the.
The left furnace secondary coil controller circuit comprises a resistor R2, a resistor R3, a resistor R4, a triode Q2, a triode Q3, a left furnace double-coil electromagnetic valve L1 and a left furnace thermocouple probe F1, one end of the resistor R2 is connected with a single chip microcomputer U1, the other end of the resistor R1 is connected with a triode Q2, the triode Q2 is further connected with VDD, one end of the resistor R4 is connected with the single chip microcomputer U1, the other end of the resistor R4 is connected with a triode Q3, the triode Q3 is further connected with GND, the triode Q2 and the triode Q3 are connected through a resistor R3, the resistor R3 and the triode Q2 are connected with one end of a left furnace double-coil electromagnetic valve L1 through a lead, the other end of the left furnace double-coil electromagnetic valve L1 is connected with VCC, and the left furnace thermocouple probe F1 is connected between a left double-coil electromagnetic.
The right furnace secondary coil controller circuit comprises a resistor R5, a resistor R6, a resistor R7, a triode Q4, a triode Q5, a right furnace double-coil electromagnetic valve L2 and a right furnace thermocouple probe F2, one end of the resistor R5 is connected with a single chip microcomputer U1, the other end of the resistor R2 is connected with a triode Q4, the triode Q4 is further connected with VDD, one end of the resistor R7 is connected with the single chip microcomputer U1, the other end of the resistor R7 is connected with a triode Q5, the triode Q5 is further connected with GND, the triode Q4 and the triode Q5 are connected through a resistor R6, the resistor R6 and the triode Q4 are connected with one end of a right furnace double-coil electromagnetic valve L2 through a lead, the other end of the right furnace double-coil electromagnetic valve L2 is connected with VCC, and the right furnace thermocouple probe F2 is connected between a right furnace double-.
The utility model discloses in mentioned outside spare part, it includes the battery in the picture, left stove switch K1, right stove switch K2, left stove bottom of a boiler temperature probe RT1, right stove bottom of a boiler temperature probe RT2, left stove ignition needle T1, right stove ignition needle T2, left stove double coil solenoid valve L1, right stove double coil solenoid valve L2, left stove thermocouple probe F1 and right stove thermocouple probe F2, wherein with outside spare part's connection pencil all with these outside part assorted specialty pencil.
The controller in the utility model is suitable for the cooking utensils of the thermoelectric type flameout safety protection device, and the special non-self-absorption thermocouple electromagnetic valve has two groups of coils (also called as double-coil electromagnetic valve), the main coil is connected with the thermocouple to realize the flameout safety protection, namely, the gas valve is automatically closed when the flame is accidently extinguished; the secondary coil is connected with the controller to realize the functions of dry burning prevention protection and zero second starting, wherein the zero second starting means that a user can release hands after pressing the switch to ignite the fire of the cooking range without waiting for the thermocouple to burn hot (or red).
Under the normal combustion state, the thermocouple probe generates thermoelectric force after being heated by flame, the thermoelectric force is applied to a thermocouple electromagnetic valve coil, and the electromagnetic valve is kept in an open state by current flowing through the electromagnetic valve coil; when the flame is accidentally extinguished due to blowing or overflowing of soup, the thermoelectric force disappears, no current flows through the main coil, and the gas valve is closed.
The utility model discloses a theory of operation:
when a left furnace switch K1 is pressed, VCC is connected with a power supply 3V, the single chip microcomputer U1 starts a left furnace ignition circuit unit U3 to generate high voltage and discharge and ignite with a burner shell through a left furnace ignition needle T1, and simultaneously, high level is output to lead a triode Q3 to be saturated and conducted for about 10 seconds, so that the secondary coil of a left furnace double-coil electromagnetic valve L1 flows current from VCC to GND to realize a zero-second starting function; when the temperature of the left furnace bottom temperature probe RT1 is higher than the preset anti-dry-burning protection temperature, the singlechip U1 monitors the temperature of the left furnace bottom temperature probe RT1 in real time, when the temperature of the left furnace bottom temperature probe RT1 exceeds the preset anti-dry-burning protection temperature, the singlechip U1 starts the controlled booster circuit unit U2 to work, and controls the triode Q2 to be in saturated conduction and the triode Q3 to be cut off, so that the current from VDD to VCC flows through the secondary coil of the left furnace double-coil electromagnetic valve L1, the duration of the current is about 100ms, and the generated magnetic flux offsets a part of the magnetic flux generated by the current generated by the left furnace thermocouple probe F1 and flowing through the main coil of the left furnace double-coil electromagnetic valve L1, thereby closing a gas passage of the left furnace to realize the anti-.
When a right furnace switch K2 is pressed, VCC is connected with a power supply 3V, the singlechip U1 starts a right furnace ignition circuit unit U4 to generate high voltage and discharge and ignite with a burner shell through a right furnace ignition needle T2, and simultaneously, high level is output to lead a triode Q5 to be in saturation conduction for about 10 seconds, so that the secondary coil of a right furnace double-coil electromagnetic valve L2 flows current from VCC to GND to realize a zero-second starting function; when the temperature of the right furnace bottom temperature probe RT2 is higher than the preset anti-dry-burning protection temperature, the singlechip U1 monitors the temperature of the right furnace bottom temperature probe RT2 in real time, when the temperature of the right furnace bottom temperature probe RT2 exceeds the preset anti-dry-burning protection temperature, the singlechip U1 starts the booster circuit unit U2 to work, the triode Q4 is controlled to be in saturated conduction, the triode Q5 is controlled to be in cut-off, the current from VDD to VCC flows through the secondary coil of the right furnace double-coil electromagnetic valve L2, the duration time of the current is about 100ms, the generated magnetic flux offsets a part of the magnetic flux generated by the current generated by the right furnace thermocouple probe F2 and flowing through the right double-coil electromagnetic valve L2 main coil, and therefore the fuel gas passage of the right furnace is closed to realize the.
The controlled booster circuit unit U2 of the utility model is controlled by the single chip microcomputer, and the single chip microcomputer starts to work when the gas valve needs to be closed, thereby saving electric energy and prolonging the service life of the battery; the singlechip is adopted to control the on or off of the triode, thereby realizing the functions of zero-second starting, dry-burning prevention closing of the gas valve and timing closing of the gas valve of the gas cooker.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A pulse ignition controller for a dry combustion preventing gas cooker is characterized by comprising a single chip microcomputer U1, a controlled booster circuit unit U2, a left furnace ignition circuit unit U3, a right furnace ignition circuit unit U4, a pot bottom temperature measuring circuit, a resistor R8 and a resistor R9 for measuring the temperature of a pot bottom, a left furnace auxiliary coil controller circuit, a right furnace auxiliary coil controller circuit, a connecting wire harness connected with external parts, an ignition high-voltage output terminal, resistors R10 and R11, wherein one end of the controlled booster circuit unit U2 is connected with VDD, the other end of the controlled booster circuit unit U2 is connected with a triode Q1, the triode Q1 is further connected with the single chip microcomputer U1 through the resistor R1, one end of the left furnace ignition circuit unit U3 is connected with the single chip microcomputer U1, the other end of the left furnace ignition circuit unit U1, one end of the right furnace ignition circuit unit U4 is connected with the U1, and the other end of the right furnace ignition needle T2 is connected, the single chip microcomputer U1 still is connected with switch circuit, left stove auxiliary coil controller circuit, right stove auxiliary coil controller circuit respectively, connecting resistance R10, resistance R11 on the switch circuit, the other end and the GND of resistance R10 and resistance R11 are connected.
2. The pulse ignition controller for the dry-heating prevention gas cooker as claimed in claim 1, wherein the switch circuit comprises a left oven switch circuit and a right oven switch circuit, and the left oven switch circuit and the right oven switch circuit are respectively connected in series with the single-chip microcomputer U1.
3. The pulse ignition controller for the dry combustion preventing gas cooker as claimed in claim 2, wherein the left oven switch circuit comprises a left oven switch K1, one end of the left oven switch K1 is connected to VCC, the other end is connected to the single chip microcomputer U1, a resistor R10 is connected in parallel to a wire between the left oven switch K1 and the single chip microcomputer U1, one end of the resistor R10 is connected to the left oven switch K1, the other end is connected to GND, the right oven switch circuit comprises a right oven switch K2, one end of the right oven switch K2 is connected to VCC, the other end is connected to the single chip microcomputer U1, a resistor R11 is connected in parallel to a wire between the right oven switch K2 and the single chip microcomputer U1, one end of the resistor R11 is connected to the right oven switch K2, and the other end is connected to GND.
4. The pulse ignition controller for the dry combustion preventing gas cooker according to claim 1, wherein the pan bottom temperature measuring circuit comprises a resistor R8, a resistor R9, a left furnace pan bottom temperature probe RT1 and a right furnace pan bottom temperature probe RT2 for measuring the pan bottom temperature, one end of each of the left furnace pan bottom temperature probe RT1 and the right furnace pan bottom temperature probe RT2 is connected with GND, the other end of each of the left furnace pan bottom temperature probe RT2 and the right furnace pan bottom temperature probe RT1 is connected with a single chip microcomputer U1, one end of the resistor R8 is connected between the left furnace pan bottom temperature probe RT1 and the single chip microcomputer U1, the other end of the resistor R9 is connected with VCC, one end of the resistor R9 is connected between the right furnace pan bottom temperature probe RT2 and the single chip microcomputer U1.
5. The pulse ignition controller for a dry-fire prevention gas cooker according to claim 1, it is characterized in that the left furnace auxiliary coil controller circuit comprises a resistor R2, a resistor R3, a resistor R4, a triode Q2, a triode Q3, a left furnace double-coil electromagnetic valve L1 and a left furnace thermocouple probe F1, one end of the resistor R2 is connected with the singlechip U1, the other end is connected with the triode Q2, the triode Q2 is also connected with VDD, one end of the resistor R4 is connected with the singlechip U1, the other end is connected with the triode Q3, the triode Q3 is also connected with GND, the triode Q2 and the triode Q3 are connected through a resistor R3, the resistor R3 and the triode Q2 are connected with one end of a left furnace double-coil electromagnetic valve L1 through a lead, the other end of the left furnace double-coil electromagnetic valve L1 is connected with VCC, and the left furnace thermocouple probe F1 is connected in parallel between the left furnace double-coil electromagnetic valve L1 and VCC.
6. The pulse ignition controller for a dry-fire prevention gas cooker according to claim 1, it is characterized in that the right furnace auxiliary coil controller circuit comprises a resistor R5, a resistor R6, a resistor R7, a triode Q4, a triode Q5, a right furnace double-coil electromagnetic valve L2 and a right furnace thermocouple probe F2, one end of the resistor R5 is connected with the singlechip U1, the other end is connected with the triode Q4, the triode Q4 is also connected with VDD, one end of the resistor R7 is connected with the singlechip U1, the other end is connected with the triode Q5, the triode Q5 is also connected with GND, the triode Q4 and the triode Q5 are connected through a resistor R6, the resistor R6 and the triode Q4 are connected with one end of a right furnace double-coil electromagnetic valve L2 through a lead, the other end of the right furnace double-coil electromagnetic valve L2 is connected with VCC, and the right furnace thermocouple probe F2 is connected in parallel between the right furnace double-coil electromagnetic valve L2 and VCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563579.7U CN210861212U (en) | 2019-09-19 | 2019-09-19 | Pulse ignition controller for dry-burning-resistant gas cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563579.7U CN210861212U (en) | 2019-09-19 | 2019-09-19 | Pulse ignition controller for dry-burning-resistant gas cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210861212U true CN210861212U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921563579.7U Active CN210861212U (en) | 2019-09-19 | 2019-09-19 | Pulse ignition controller for dry-burning-resistant gas cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210861212U (en) |
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2019
- 2019-09-19 CN CN201921563579.7U patent/CN210861212U/en active Active
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