CN112303680B - Method for controlling power-saving timer for igniter - Google Patents
Method for controlling power-saving timer for igniter Download PDFInfo
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- CN112303680B CN112303680B CN202011040543.8A CN202011040543A CN112303680B CN 112303680 B CN112303680 B CN 112303680B CN 202011040543 A CN202011040543 A CN 202011040543A CN 112303680 B CN112303680 B CN 112303680B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010411 cooking Methods 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/10—Arrangement or mounting of ignition devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
Abstract
The invention discloses a control method of a power-saving timer for an igniter, which comprises the following steps: judging whether the igniter has a pulse width modulation signal input into the timer or not, enabling the timer to enter an interval sleep state according to a judgment result, and waiting for a user to input timing time information; the timer enters a normal working state and starts to count down, and the display screen enters a semi-bright state after X seconds of no operation; and judging whether the countdown is finished or not, outputting a low level according to a judgment result, forcibly pulling down the pulse width modulation signal for N seconds, and enabling the igniter to enter an air-off and extinguishing protection state. According to the control method of the power-saving timer for the igniter, the igniter is externally connected with the timer, so that most of cooking utensils powered by the battery realize the function of timing and turning off fire, the current value of the timer can be reduced when a user waits for inputting timing time information and after the user turns off the fire, and meanwhile, after the timer enters a normal working state, the brightness of a display screen is reduced to be half bright, so that the power consumption of the battery is saved.
Description
Technical Field
The invention belongs to the technical field of gas cookers, and particularly relates to a control method of a power-saving timer for an igniter.
Background
At present, most gas cookers are powered by batteries (3V voltage), and the requirements on system power saving are severe. The control system in the gas cooker is mainly centralized in an igniter, and the driven load mainly comprises an ignition control circuit, a self-absorption electromagnetic valve and a fire detection circuit. When a self-priming solenoid valve is to be actuated, the sequence is typically: the solenoid valve is first attracted for about 0.6 sec and then maintained in low current with PWM signal. That is, when the igniter is successfully ignited, the self-priming solenoid valve is driven by the PWM signal.
However, in cooking applications, the requirements for timing cooking are common, and most of gas cooker products with timing functions on the market are powered by adapters, so that the placing positions of the cookers are limited, certain potential safety hazards of power utilization exist, and the gas cooker is not suitable for most of gas cookers powered by batteries.
Disclosure of Invention
In order to solve the problems, the invention provides a control method of a power-saving timer for an igniter, so that most of cooking utensils powered by batteries realize the function of timing fire cut-off.
The technical scheme adopted by the invention is as follows:
a method of controlling a power-save timer for an igniter, comprising the steps of:
s1, an igniter is electrically connected with a timer, the timer is initialized after a power supply is switched on, and the timer is in a deep sleep state;
s2, judging whether the igniter has a pulse width modulation signal input into a timer or not, enabling the timer to enter an interval sleep state according to a judgment result, and waiting for a user to input timing time information;
s3, after the user inputs timing time information, the timer enters a normal working state and starts to count down, and the display screen enters a semi-bright state after no operation is performed for X seconds;
and S4, judging whether the countdown is finished or not, outputting a low level according to a judgment result, forcibly pulling down the pulse width modulation signal for N seconds, enabling the igniter to enter an air-break and extinguishing protection state, stopping outputting the pulse width modulation signal, and recovering the deep sleep state after the timer is Y seconds.
Preferably, the S2 specifically includes the following steps: and judging whether the igniter has a pulse width modulation signal input to the timer, if not, continuing to be in a deep sleep state, if so, entering an interval sleep state by the timer, scanning the key once at intervals of M milliseconds, and waiting for a user to input timing time information.
Preferably, S3 specifically is:
s31, judging whether a user inputs timing time information or not, if not, entering an interval sleep state by the timer, and if yes, entering a normal working state by the timer and starting countdown;
and S32, detecting whether the timing time information is not changed for X seconds by the user, if so, waiting for the user to input the timing time information, and if not, entering a semi-bright state after X seconds on the display screen.
Preferably, S4 is specifically: and judging whether the countdown is finished or not, if not, continuously judging whether the countdown is finished or not, if so, outputting a low level to forcibly pull down the pulse width modulation signal for N seconds, enabling the igniter to enter an air-break and extinguishing protection state, stopping outputting the pulse width modulation signal, and recovering to a deep sleep state after Y seconds of the timer.
Preferably, the timer is in a deep sleep state, that is, the timer is in a power-down mode.
Preferably, the pulse width modulation signal is also used for driving a solenoid valve of the igniter to maintain a pull-in state.
Preferably, the timer current of the interval sleep state is in microamperes.
Preferably, the timer current for the interval sleep state is 45-200 microamperes.
Preferably, the timer current of the deep sleep state is in microamperes.
Preferably, the frequency of the pulse width modulation signal is 1KHZ.
Compared with the prior art, the control method of the power-saving timer for the igniter has the advantages that the igniter is externally connected with the timer, so that most cooking utensils powered by the battery realize the function of timing fire-off, the current value of the timer can be reduced when waiting for the user to input timing time information and after the user is flamed out, the brightness of a display screen is reduced to be half bright after the timer enters a normal working state, and the power consumption of the battery is saved.
Drawings
Fig. 1 is a flowchart of a method for controlling a power-saving timer of an igniter according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for controlling a power-saving timer of an igniter according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
An embodiment of the present invention provides a method for controlling a power-saving timer of an igniter, as shown in fig. 1-2, including the steps of:
s1, an igniter is electrically connected with a timer, the timer is initialized after a power supply is switched on, and the timer is in a deep sleep state;
s2, judging whether the igniter has a pulse width modulation signal input timer or not, enabling the timer to enter an interval sleep state according to a judgment result, and waiting for a user to input timing time information;
s3, after the user inputs timing time information, the timer enters a normal working state and starts to count down, and the display screen enters a semi-bright state after no operation is performed for X seconds;
and S4, judging whether the countdown is finished or not, outputting a low level according to a judgment result, forcibly pulling down the pulse width modulation signal for N seconds, enabling the igniter to enter a gas-off and extinguishing protection state, stopping outputting the pulse width modulation signal, and recovering to a deep sleep state after the timer is Y seconds.
Therefore, the timer is initialized after the power supply is switched on through the external timer of the igniter, so that the timer is in a deep sleep state (at the moment, the current value of the timer is in microampere level); judging whether the igniter has a pulse width modulation signal input into a timer or not, enabling the timer to enter an interval sleep state according to a judgment result, and waiting for a user to input timing time information; after a user inputs timing time information, the timer enters a normal working state and starts to count down, and a display screen enters a semi-bright state after X seconds of no operation; judging whether the countdown is finished or not, outputting a low level according to a judgment result, forcibly pulling down the pulse width modulation signal for N seconds, enabling the igniter to enter a gas-off and fire-off protection state, stopping the output of the pulse width modulation signal, and recovering a deep sleep state after Y seconds of the timer, so that most of cooking utensils powered by batteries can realize the function of timing fire-off, meanwhile, the current value of the timer can be reduced when waiting for a user to input timing time information and after the user is flamed out, and meanwhile, the brightness of a display screen is reduced to be half bright after the timer enters a normal working state, and the power consumption of the batteries is saved.
The S2 specifically comprises the following steps: and judging whether the igniter has a pulse width modulation signal input to the timer, if not, continuing to be in a deep sleep state, if so, entering an interval sleep state by the timer, scanning the key once at intervals of M milliseconds, and waiting for a user to input timing time information.
Thus, whether the igniter has a pulse width modulation signal (generally with a frequency of 1 KHZ) to input into the timer is judged, if not, the timer is continuously in a deep sleep state (at the moment, the current of the timer is in microampere level and generally jumps between 45 and 200 microampere), if yes, the timer enters an interval sleep state, and the key is scanned at intervals of M milliseconds (generally 512 milliseconds) to wait for the user to input timing time information.
The S3 specifically comprises the following steps:
s31, judging whether a user inputs timing time information or not, if not, entering an interval sleep state by the timer, and if yes, entering a normal working state by the timer and starting countdown;
and S32, detecting whether the timing time information is not changed for X seconds by the user, if so, waiting for the user to input the timing time information, and if not, entering a semi-bright state after the display screen is in X seconds.
Therefore, whether a user inputs timing time information is judged firstly, if not, the timer enters an interval sleep state, and if yes, the timer enters a normal working state and starts to count down; and then detecting whether the timing time information is not changed for X seconds (generally 10 seconds) by the user, if so, waiting for the user to input the timing time information, and if not, entering a semi-bright state after the display screen is in X seconds.
The S4 specifically comprises the following steps: and judging whether the countdown is finished or not, if not, continuously judging whether the countdown is finished or not, if so, outputting a low level to forcibly pull down the pulse width modulation signal for N seconds, enabling the igniter to enter a gas-off and extinguishing protection state, stopping outputting the pulse width modulation signal, and recovering the deep sleep state after the timer is Y seconds.
And if yes, outputting a low level to forcibly pull down the pulse width modulation signal for N seconds (generally 0.5 second), enabling the igniter to enter an air-break and extinguishing protection state, stopping outputting the pulse width modulation signal, and recovering to a deep sleep state after Y seconds (generally 5 seconds) of the timer.
And if the timer is in the deep sleep state, the timer is in the power-down mode.
Thus, when the timer is in a deep sleep state, that is, the timer is in a power-down mode, the current of the whole timer can be reduced to 16 microamperes.
The pulse width modulation signal is also used for driving an electromagnetic valve of the igniter to maintain a suction state.
Therefore, when the cooker works normally (in a combustion state), the control end of the igniter outputs a pulse width modulation signal to drive the electromagnetic valve to maintain an actuation state.
According to the control method of the power-saving timer for the igniter, the igniter is externally connected with the timer, so that most of cooking utensils powered by batteries can realize the function of timing fire off, the current value of the timer can be reduced when waiting for a user to input timing time information and after the user is flamed out, and meanwhile, after the timer enters a normal working state, the brightness of a display screen is reduced to be half bright, so that the power consumption of the batteries is saved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method of controlling a power-save timer for an igniter, comprising the steps of:
s1, an igniter is electrically connected with a timer, the timer is initialized after a power supply is switched on, and the timer is in a deep sleep state;
s2, judging whether a pulse width modulation signal is input into the timer or not, if not, continuing to be in a deep sleep state, if so, entering an interval sleep state, scanning the key once every M milliseconds, and waiting for a user to input timing time information;
s3, after the user inputs timing time information, the timer enters a normal working state and starts to count down, and the display screen enters a semi-bright state after no operation is performed for X seconds;
and S4, judging whether the countdown is finished or not, outputting a low level according to a judgment result, forcibly pulling down the pulse width modulation signal for N seconds, enabling the igniter to enter an air-break and extinguishing protection state, stopping outputting the pulse width modulation signal, and recovering the deep sleep state after the timer is Y seconds.
2. The method for controlling a power-saving timer for an igniter as claimed in claim 1, wherein the S3 is specifically:
s31, judging whether a user inputs timing time information or not, if not, enabling the timer to enter an interval sleep state, and if so, enabling the timer to enter a normal working state and start countdown;
and S32, detecting whether the timing time information is not changed for X seconds by the user, if so, waiting for the user to input the timing time information, and if not, entering a semi-bright state after X seconds on the display screen.
3. The method for controlling a power-saving timer for an igniter according to claim 1 or 2, wherein the S4 is specifically: and judging whether the countdown is finished or not, if not, continuously judging whether the countdown is finished or not, if so, outputting a low level to forcibly pull down the pulse width modulation signal for N seconds, enabling the igniter to enter an air-break and extinguishing protection state, stopping outputting the pulse width modulation signal, and recovering to a deep sleep state after Y seconds of the timer.
4. The method of claim 1 or 2, wherein the timer is in a deep sleep state, i.e., the timer is in a power down mode.
5. The control method of the power-saving timer for an igniter as claimed in claim 1 or 2, wherein the pulse width modulation signal is further used to drive a solenoid valve of the igniter to maintain a pull-in state.
6. The control method of the power-saving timer for an igniter as claimed in claim 1 or 2, wherein the timer current of the interval sleep state is in microampere level.
7. The control method of a power-saving timer for an igniter as claimed in claim 1 or 2, wherein the timer current of the interval sleep state is 45-200 μ a.
8. The control method of the power-saving timer for an igniter as claimed in claim 1 or 2, wherein the timer current of the deep sleep state is in microampere level.
9. The control method of a power-saving timer for an igniter as claimed in claim 1 or 2, wherein the frequency of the pulse width modulation signal is 1KHZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011040543.8A CN112303680B (en) | 2020-09-28 | 2020-09-28 | Method for controlling power-saving timer for igniter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011040543.8A CN112303680B (en) | 2020-09-28 | 2020-09-28 | Method for controlling power-saving timer for igniter |
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| CN112303680A CN112303680A (en) | 2021-02-02 |
| CN112303680B true CN112303680B (en) | 2023-02-17 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421973A (en) * | 2013-08-26 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Gas appliance and pulse ignition device used for same and pulse ignition control method |
| CN110186077A (en) * | 2019-06-13 | 2019-08-30 | 佛山市顺德区美的洗涤电器制造有限公司 | It is a kind of for the control method of gas-cooker, device and gas-cooker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070068511A1 (en) * | 2005-09-28 | 2007-03-29 | Hearth & Home Technologies | Gas fireplace monitoring and control system |
| US8963558B2 (en) * | 2012-10-31 | 2015-02-24 | General Electric Company | Current differential protection |
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- 2020-09-28 CN CN202011040543.8A patent/CN112303680B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421973A (en) * | 2013-08-26 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Gas appliance and pulse ignition device used for same and pulse ignition control method |
| CN110186077A (en) * | 2019-06-13 | 2019-08-30 | 佛山市顺德区美的洗涤电器制造有限公司 | It is a kind of for the control method of gas-cooker, device and gas-cooker |
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| CN112303680A (en) | 2021-02-02 |
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