Control device and control method for thermocouple double-coil electromagnetic valve of gas stove

Abstract

The invention belongs to the technical field of control of gas stoves, and discloses a control device and a control method for a thermocouple double-coil electromagnetic valve of a gas stove. The control device comprising a thermocouple, the double-coil electromagnetic valve, a battery pack, a control module and a direct current conversion module is constructed; outputting a first control signal to a direct current conversion module to enable the direct current conversion module to carry out voltage reduction processing on a first electric signal output by the battery pack; and then a second control signal is output to the control module, so that the control module carries out potential processing on the first electric signal and carries out valve control processing according to the second electric signal received by the main coil and the first electric signal. Compared with a conventional control mode, the additional power consumption of the battery pack can be effectively reduced, due to the fact that the load consumption of the secondary coil is low, valve closing failure of the double-coil electromagnetic valve when the electric quantity of the battery pack is low can be avoided, the service life of the battery is prolonged, and the use experience of the gas cooker is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of gas stove control, and in particular relates to a control device and a control method for a thermocouple double-coil solenoid valve of a gas stove. Background Art

[0002] Conventional gas stoves on the market use thermocouples and double-coil solenoid valves. The thermocouple can generate an electrical signal through the heat generated by the flame to achieve flame monitoring and safety protection of the gas stove, and can output the electrical signal to the double-coil solenoid valve; the double-coil solenoid valve can use the electrical signals received by the two coils to make the electromagnet generate attraction, and then control the valve switch to achieve continuous output or stop of gas. The two coils are usually divided into a secondary coil for quickly opening the valve, and a main coil for keeping the valve in an open state.

[0003] When conventional gas stoves control the double-coil solenoid valve to close the valve, most of them use a boost circuit and a series resistor to make the electric signal output to the secondary coil of the double-coil solenoid valve and the magnetic field between the electric signal output to the main coil cancel each other out, so that the electromagnet cannot generate attraction to the valve body; and when controlling the double-coil solenoid valve to open the valve, first use the series resistor current limiting voltage division method to briefly output an electric signal to the secondary coil of the double-coil solenoid valve, and then output an electric signal to the main coil through a thermocouple, so that the electromagnet continues to generate attraction to the valve body. Since most gas stoves are currently powered by batteries, this control method of the double-coil solenoid valve will consume a lot of battery power and easily cause the double-coil solenoid valve to fail to close the valve, thereby affecting the battery life and the user experience of the gas stove. Summary of the invention

[0004] In order to solve the above-mentioned technical defects that most gas stoves are currently powered by batteries, the control method of the conventional double-coil solenoid valve will cause a large amount of battery power consumption, and it is also easy to cause the double-coil solenoid valve to fail to close the valve, thereby affecting the service life of the battery and the user experience of the gas stove, this application proposes a control device and control method for a gas stove thermocouple double-coil solenoid valve, and its technical solution is as follows:

[0005] In a first aspect, an embodiment of the present application provides a control device for a gas stove thermocouple double-coil solenoid valve, comprising a thermocouple, a double-coil solenoid valve and a battery pack. The control device for the gas stove thermocouple double-coil solenoid valve also comprises a control module and a DC conversion module, wherein:

[0006] One end of the main coil of the double-coil solenoid valve is connected to the output end of the thermocouple, the other end of the main coil of the double-coil solenoid valve is connected to the ground end through the shell, one end of the secondary coil of the double-coil solenoid valve is connected to one end of the control module, and the other end of the secondary coil of the double-coil solenoid valve is connected to the ground end through the shell;

[0007] The other end of the control module is connected to one end of the DC conversion module;

[0008] The other end of the DC conversion module is connected to the positive electrode of the battery pack;

[0009] The negative terminal of the battery pack is connected to the ground terminal.

[0010] In an optional scheme of the first aspect, the control module includes a first on-off control unit, one end of the first on-off control unit is connected to one end of the secondary coil of the dual-coil solenoid valve, and the other end of the first on-off control unit is connected to one end of the DC conversion module.

[0011] In yet another optional solution of the first aspect, the control module further includes a voltage reversal unit and a second on-off control unit, wherein:

[0012] One end of the voltage reversal unit is connected to one end of the secondary coil of the double-coil solenoid valve, and the other end of the voltage reversal unit is connected to one end of the second on-off control unit;

[0013] The other end of the second on-off control unit is connected to one end of the DC conversion module.

[0014] In another optional solution of the first aspect, the first on-off control unit and the second on-off control unit are both field effect transistor control circuits; or

[0015] The first on-off control unit and the second on-off control unit are both triode transistor control circuits; or

[0016] The first on-off control unit and the second on-off control unit are both thyristor control circuits; or

[0017] The first on-off control unit and the second on-off control unit are both digital analog switch circuits; or

[0018] The first on-off control unit and the second on-off control unit are both load switch control circuits; or

[0019] The first on-off control unit and the second on-off control unit are both relay control circuits; or

[0020] The first on-off control unit and the second on-off control unit are both photoelectric switch control circuits.

[0021] In another optional solution of the first aspect, the voltage inversion unit is a charge pump voltage inverter; or

[0022] The voltage inversion unit is a negative voltage power converter.

[0023] In a second aspect, an embodiment of the present application provides a control method for a gas stove thermocouple double-coil solenoid valve, which is applied to a control device for a gas stove thermocouple double-coil solenoid valve provided in the first aspect of the embodiment of the present application or any one of the implementations of the first aspect, and the method includes:

[0024] When a monitoring signal of the gas stove is detected, a first control signal is output to the DC conversion module, so that the DC conversion module performs voltage reduction processing on the first electrical signal output by the battery pack, and the DC conversion module outputs the first electrical signal after voltage reduction processing to the control module;

[0025] A second control signal is output to the control module so that the control module performs potential processing on the first electrical signal after the voltage reduction processing, and the control module outputs the first electrical signal after the potential processing to one end of the secondary coil of the double-coil solenoid valve, and the double-coil solenoid valve performs valve control processing based on the second electrical signal received by the main coil and the first electrical signal after the potential processing; wherein the second electrical signal is output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve.

[0026] In an optional solution of the second aspect, before outputting the first control signal to the DC conversion module, the method further includes:

[0027] Obtaining a third electrical signal at both ends of the battery pack, and inputting the third electrical signal and a preset signal threshold into a deep learning model to obtain a duty cycle; wherein the deep learning model is trained by a preset signal threshold, at least two sample electrical signals, and a sample duty cycle corresponding to each sample electrical signal;

[0028] The first control signal is modulated according to the duty cycle.

[0029] In another optional solution of the second aspect, the control module includes a first on-off control unit, a voltage reversal unit and a second on-off control unit, and the second control signal includes a circuit-on signal and a circuit-off signal;

[0030] Outputting a second control signal to the control module includes:

[0031] When the monitoring signal of the gas stove is a timing end signal, a circuit disconnection signal is output to the second on-off control unit to disconnect the circuit between the DC conversion module and the voltage inversion unit;

[0032] A circuit conduction signal is output to the first on-off control unit to conduct the circuit between the DC conversion module and one end of the secondary coil of the double-coil solenoid valve, and to keep the potential of the first electrical signal after the voltage reduction process unchanged.

[0033] In yet another optional solution of the second aspect, outputting the second control signal to the control module further includes:

[0034] When the monitoring signal of the gas stove is a valve pressing signal, a circuit disconnection signal is output to the first on-off control unit to disconnect the circuit between the DC conversion module and one end of the secondary coil of the double-coil solenoid valve;

[0035] Outputting a circuit conduction signal to the second on-off control unit to conduct the circuit between the DC conversion module and the voltage reversal unit, and allowing the voltage reversal unit to perform potential reversal processing on the first electrical signal after the voltage reduction processing;

[0036] After a preset delay time, a circuit disconnection signal is output to the second on-off control unit to disconnect the circuit between the DC conversion module and the voltage inversion unit.

[0037] In yet another optional solution of the second aspect, after outputting the second control signal to the control module, the method further includes:

[0038] When the difference between the absolute value of the second electrical signal and the absolute value of the first electrical signal after potential processing exceeds a preset difference threshold, performing difference calculation processing on the absolute value of the second electrical signal and the absolute value of the first electrical signal after potential processing;

[0039] Correcting the preset signal threshold according to the difference result to obtain a corrected signal threshold;

[0040] When the monitoring signal of the gas stove is detected again, a fourth electrical signal at both ends of the battery pack is obtained, and a third control signal is modulated according to the fourth electrical signal and the correction signal threshold; wherein the third control signal is a periodically changing level driving signal;

[0041] A third control signal is output to the DC conversion module.

[0042] In a third aspect, an embodiment of the present application provides a computer storage medium, which stores a computer program. The computer program includes program instructions. When the program instructions are executed, they can implement the control method of the gas stove thermocouple double-coil solenoid valve provided by the second aspect of the embodiment of the present application or any implementation method of the second aspect.

[0043] Beneficial effects:

[0044] In the embodiment of the present application, when controlling the thermocouple double-coil solenoid valve of the gas stove, a control device including a thermocouple, a double-coil solenoid valve, a battery pack, a control module and a DC conversion module can be constructed, so that when the monitoring signal of the gas stove is detected, a first control signal is output to the DC conversion module, so that the DC conversion module performs voltage reduction processing on the first electrical signal output by the battery pack; then, a second control signal can be output to the control module, so that the control module performs potential processing on the first electrical signal after the voltage reduction processing, and the double-coil solenoid valve performs valve control processing according to the second electrical signal received by the main coil and the first electrical signal after the potential processing. Compared with the series resistance set by the conventional control method, the additional power consumption of the battery can be effectively reduced, and because the load consumption of the secondary coil is low, the failure of the double-coil solenoid valve to close the valve can be avoided when the battery pack is low, thereby extending the service life of the battery and ensuring the use experience of the gas stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 This is a rendering of a conventional control device of a thermocouple double-coil solenoid valve of an existing gas stove;

[0047] Figure 2 This is a rendering of a control device for a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application;

[0048] Figure 3 A rendering of a control device for a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application;

[0049] Figure 4 An overall flow chart of a control method for a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application;

[0050] Figure 5 This is an overall flow chart of another method for controlling a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application;

[0051] Figure 6 This is an overall flow chart of another method for controlling a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0053] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, although the embodiment may not be clearly recorded in the following text.

[0054] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements described without departing from the scope of the present application. Various processes or components may be appropriately omitted, substituted or added to each example. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, features described in some examples may be combined in other examples.

[0055] See also Figure 1 , Figure 1 The effect diagram of a conventional control device of a thermocouple double-coil electromagnetic valve of an existing gas stove is shown.

[0056] like Figure 1 As shown, a conventional control device of a thermocouple double-coil solenoid valve of an existing gas stove may include a thermocouple, a double-coil solenoid valve, a series resistor, a voltage control unit, a boost unit, a conduction control unit and a battery pack, wherein:

[0057] The double-coil solenoid valve is provided with a main coil and a secondary coil to control the valve to close or open according to the electrical signal output to the main coil and the electrical signal output to the secondary coil. One end of the main coil of the double-coil solenoid valve can be connected to the output end of the thermocouple, and the other end of the main coil of the double-coil solenoid valve can be connected to the ground end through the shell ( Figure 1 One end of the secondary coil of the dual-coil solenoid valve can be connected to one end of the series resistor, and the other end of the secondary coil of the dual-coil solenoid valve can be connected to the positive electrode of the battery pack through the housing, or connected to the ground terminal through the housing ( Figure 1 Only the positive connection to the battery pack is shown).

[0058] The other end of the series resistor can be connected to one end of the voltage control unit and one end of the conduction control unit respectively to achieve current limiting and voltage division in the circuit where the battery pack and the secondary coil of the dual-coil solenoid valve are located, thereby ensuring the current demand output to the secondary coil of the dual-coil solenoid valve.

[0059] The other end of the voltage control unit can be connected to one end of the boost unit to output the electrical signal output by the boost unit in a pulse form to one end of the secondary coil of the dual-coil solenoid valve. The voltage control unit can be but is not limited to a field effect transistor control circuit or a load switch control circuit well known in the art, and its specific structure and control principle will not be elaborated here.

[0060] The other end of the boost unit can be connected to the positive electrode of the battery pack to boost the electrical signal output by the battery pack. For example, but not limited to, when the electrical signal output by the battery pack is 3 volts, the 3 volts can be converted into 5 volts by the boost unit. Here, the boost unit can be, but is not limited to, a power boost circuit well known in the art, and its specific structure and control principle are not described in detail here.

[0061] The other end of the conduction control unit can be connected to the ground terminal to control the on / off of the circuit where one end of the secondary coil of the dual-coil solenoid valve and the ground terminal are located. The conduction control unit can be but is not limited to the relay control circuit well known in the art, and its specific structure and control principle will not be elaborated here.

[0062] The battery pack may include, but is not limited to, a plurality of disposable batteries connected in series, the negative electrode of the last disposable battery in the battery pack may be connected to the ground terminal, and the positive electrode of the first disposable battery in the battery pack may be connected to the other end of the boost unit, and is not limited thereto.

[0063] In addition, the common end of the thermocouple can also be connected to the ground end ( Figure 1 not shown).

[0064] It is understandable that when the double-coil solenoid valve is controlled to close due to the timing function or the anti-dry burning function of the gas stove, the circuit between one end of the secondary coil of the double-coil solenoid valve and the grounding end can be disconnected by the conduction control unit, and the boosted electrical signal output by the boost unit is output to one end of the secondary coil of the double-coil solenoid valve in the form of pulses through the voltage control unit, and the other end of the secondary coil of the double-coil solenoid valve is connected to the grounding end through the shell. Here, the electrical signal output by the positive electrode of the battery pack passes through the boost unit and the voltage control unit in sequence, and is output to one end of the secondary coil of the double-coil solenoid valve in the form of pulses. Due to the physical characteristics of the thermocouple, the electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve is opposite to the potential between the electrical signal on the secondary coil (or the magnetic field generated by the main coil electrical signal is opposite to the magnetic field generated by the secondary coil electrical signal), which results in the electromagnet being unable to generate attraction to the valve body.

[0065] It should be noted that when the user stops using the gas stove and needs to control the double-coil solenoid valve to close, it can be but not limited to disconnecting the circuit where one end of the secondary coil of the double-coil solenoid valve and the ground end through the conduction control unit, and also disconnecting the circuit where the boost unit and the series resistor are located through the voltage control unit, that is, there is no electrical signal on the secondary coil of the double-coil solenoid valve, and at this time the output end of the electric couple also stops outputting electrical signals to one end of the main coil of the double-coil solenoid valve, and thus the electromagnet cannot generate an attraction to the valve body due to the lack of a magnetic field generated by the electrical signal.

[0066] When the double-coil solenoid valve is controlled to open the valve in zero seconds, the circuit where one end of the secondary coil of the double-coil solenoid valve and the grounding end are connected by the conduction control unit, and the circuit where the boost unit and the series resistor are disconnected by the voltage control unit, and the other end of the secondary coil of the double-coil solenoid valve is connected to the positive pole of the battery pack through the shell. Here, the electrical signal output by the positive pole of the battery pack is directly output to the other end of the secondary coil of the double-coil solenoid valve. Due to the synchronous ignition of the igniter and the physical characteristics of the thermocouple, the electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve has the same potential as the electrical signal on the secondary coil (or the magnetic field generated by the main coil electrical signal has the same polarity as the magnetic field generated by the secondary coil electrical signal), which causes the electromagnet to generate an attraction force on the valve body. After the secondary coil of the double-coil solenoid valve is energized for 5-8 seconds, the circuit where one end of the secondary coil of the double-coil solenoid valve and the grounding end are disconnected by the conduction control unit. At this time, the electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve causes the electromagnet to continue to generate an attraction force on the valve body.

[0067] It should be noted that no matter whether it is the closing control of the double-coil solenoid valve or the opening control of the zero-second quick suction, the electrical signal output by the battery pack needs to pass through the series resistor, and the secondary coil impedance of the double-coil solenoid valve is much lower than the resistance of the series resistor, which leads to a greater impact of the series resistor on the power consumption of the battery pack. It is also easy for the double-coil solenoid valve to fail to close the valve when the battery pack power is low, thereby affecting the battery life and the user experience of the gas stove.

[0068] Based on the technical defects mentioned above, please refer to Figure 2 , Figure 2 A rendering of a control device for a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application is shown.

[0069] like Figure 2 As shown, the control device of the gas stove thermocouple double-coil solenoid valve includes not only the thermocouple, double-coil solenoid valve and battery pack known in the art, but also a control module and a DC conversion module, wherein:

[0070] The double-coil solenoid valve is provided with a main coil and a secondary coil to control the valve to close or open according to the electrical signal output to the main coil and the electrical signal output to the secondary coil. One end of the main coil of the double-coil solenoid valve is connected to the output end of the thermocouple, and the other end of the main coil of the double-coil solenoid valve is connected to the ground end through the shell; one end of the secondary coil of the double-coil solenoid valve is connected to one end of the control module, and the other end of the secondary coil of the double-coil solenoid valve is connected to the ground end through the shell.

[0071] The other end of the control module can be connected to one end of the DC conversion module to perform potential processing on the electrical signal output by the DC conversion module to meet the valve closing control demand or valve opening control demand of the double-coil solenoid valve.

[0072] The other end of the DC conversion module is connected to the positive electrode of the battery pack to reduce the voltage of the electrical signal output by the battery pack so that the electrical signal after the voltage reduction process meets the current demand of the secondary coil output to the dual-coil solenoid valve. Here, the DC conversion module can be but is not limited to a step-down converter (i.e., a DC / DC converter) well known in the art, and of course can also be a dedicated DC / DC conversion integrated circuit and a separation device control circuit, and its specific structure and control principle are not described in detail here.

[0073] The battery pack may include, but is not limited to, a plurality of disposable batteries connected in series, the negative electrode of the last disposable battery in the battery pack may be connected to the ground terminal, and the positive electrode of the first disposable battery in the battery pack may be connected to the other end of the DC conversion module, and is not limited thereto.

[0074] It is understandable that when the double-coil solenoid valve is closed and controlled by the timing function or the anti-dry burning function of the gas stove, the DC conversion module can reduce the voltage of the electrical signal output by the battery pack, and the control module can keep the potential of the electrical signal after the voltage reduction unchanged, so as to output the electrical signal after the voltage reduction to one end of the secondary coil of the double-coil solenoid valve. Due to the physical characteristics of the thermocouple, the electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve is opposite to the potential of the electrical signal after the voltage reduction (or the magnetic field generated by the main coil electrical signal is opposite to the magnetic field generated by the electrical signal after the voltage reduction), which makes the electromagnet unable to generate attraction to the valve body.

[0075] It should be noted that when the user stops using the gas stove and needs to control the double-coil solenoid valve to close, the control module can, but is not limited to, disconnect the circuit between the DC conversion module and one end of the secondary coil of the double-coil solenoid valve, that is, there is no electrical signal on the secondary coil of the double-coil solenoid valve. At this time, the output end of the thermocouple also stops outputting electrical signals to one end of the main coil of the double-coil solenoid valve, and thus the electromagnet cannot generate an attraction for the valve body due to the lack of an electrical signal to generate a magnetic field.

[0076] When the double-coil solenoid valve is controlled to open the valve in zero seconds, the DC conversion module can be used to reduce the voltage of the electrical signal output by the battery pack, so that the control module can perform potential reversal processing on the electrical signal after the voltage reduction processing, that is, change the potential of the electrical signal after the voltage reduction processing, and output the electrical signal after the potential reversal processing to one end of the secondary coil of the double-coil solenoid valve. Due to the synchronous ignition of the igniter and the physical characteristics of the thermocouple, the electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve has the same potential as the electrical signal after the potential reversal processing (or the magnetic field generated by the main coil electrical signal has the same polarity as the magnetic field generated by the electrical signal after the potential reversal processing), thereby causing the electromagnet to generate an attraction force on the valve body, and after the secondary coil of the double-coil solenoid valve is energized for 5-8 seconds, the DC conversion module and the circuit where the secondary coil of the double-coil solenoid valve is located are disconnected by the control module, and at this time, the electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve can continue to generate an attraction force on the valve body.

[0077] As an optional embodiment of the present application, please refer to Figure 3 A rendering of a control device for a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application is shown.

[0078] like Figure 3 As shown, the control module may include a first on-off control unit, one end of which is connected to one end of the secondary coil of the dual-coil solenoid valve, and the other end of which is connected to one end of the DC conversion module, so as to conduct or disconnect the electrical signal output by the DC conversion module and the circuit where the secondary coil of the dual-coil solenoid valve is located. Here, the first on-off control unit may be, but is not limited to, a field effect transistor control circuit known in the art, and may also be a triode transistor control circuit, a thyristor control circuit, a digital analog switch circuit, a load switch control circuit, a relay control circuit, or a photoelectric switch control circuit, and the specific structure and control principle are not described in detail here.

[0079] The control module may further include a voltage reversal unit and a second on-off control unit, wherein:

[0080] One end of the voltage reversal unit is connected to one end of the secondary coil of the dual-coil solenoid valve, and the other end of the voltage reversal unit is connected to one end of the second on-off control unit, so as to perform potential reversal processing on the electrical signal output by the DC conversion module, and output the electrical signal after potential reversal processing to one end of the secondary coil of the dual-coil solenoid valve. Here, the voltage reversal unit can be but is not limited to a charge pump voltage inverter known in the art, and of course can also be an inverter or a negative voltage power converter, and its specific structure and control principle will not be described in detail here.

[0081] The other end of the second on-off control unit is connected to one end of the DC conversion module to conduct or disconnect the electrical signal output by the DC conversion module and the circuit where the voltage inversion unit is located. Here, the second on-off control unit can be but is not limited to a field effect transistor control circuit known in the art, and of course can also be a thyristor control circuit, a digital analog switch circuit, a load switch control circuit, a relay control circuit or a photoelectric switch control circuit. The specific structure and control principle are not described in detail here.

[0082] In addition, the common end of the thermocouple can also be connected to the ground end.

[0083] In one or more of the above-mentioned embodiments, the control device of the gas stove thermocouple double-coil solenoid valve can effectively reduce the additional power consumption of the battery caused by the series resistance compared to the series resistance set in the conventional control method, and because the load consumption of the auxiliary coil is low, it can also avoid the failure of the double-coil solenoid valve to close when the battery pack is low, thereby extending the service life of the battery and ensuring the user experience of the gas stove.

[0084] See next Figure 4 , Figure 4 The overall flow chart of a control method for a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application is shown.

[0085] The control method of the gas stove thermocouple double-coil solenoid valve can be applied to the control device of the gas stove thermocouple double-coil solenoid valve mentioned in one or more of the above embodiments, such as Figure 4 As shown, the control method of the gas stove thermocouple double-coil solenoid valve may at least include the following steps:

[0086] Step 402: When a monitoring signal from the gas stove is detected, a first control signal is output to the DC conversion module, so that the DC conversion module steps down the first electrical signal output by the battery pack, and the DC conversion module outputs the stepped-down first electrical signal to the control module.

[0087] In an embodiment of the present application, the executor of the control method of the gas stove thermocouple double-coil solenoid valve may be but is not limited to a processing terminal of the gas stove, and the processing terminal may establish a connection with the control device of the gas stove thermocouple double-coil solenoid valve mentioned above, so as to send a control signal to the control device of the gas stove thermocouple double-coil solenoid valve according to the operation performed by the user or the signal sent by the preset automatic control program, so as to realize valve control of the double-coil solenoid valve.

[0088] Specifically, when the processing terminal detects the monitoring signal of the gas stove, it indicates that the timing function or the anti-dry burning function set by the gas stove affects the current use state of the gas stove, or indicates that the valve rotation operation of the user is received, that is, the user needs to use the gas stove, and then the first control signal can be output to the DC conversion module, so that the DC conversion module can step down the first electrical signal output by the battery pack according to the first control signal, and can output the first electrical signal after the step-down process to the control module. Here, the first control signal can be understood as a level drive signal that presents periodic changes, such as but not limited to a level drive signal arranged in sequence according to a high level signal and a low level signal; the first electrical signal can be the voltage normally output by the battery pack at the current power level.

[0089] Step 404, output a second control signal to the control module so that the control module performs potential processing on the first electrical signal after the voltage reduction processing, and the control module outputs the first electrical signal after the potential processing to one end of the secondary coil of the dual-coil solenoid valve, and the dual-coil solenoid valve performs valve control processing according to the second electrical signal received by the main coil and the first electrical signal after the potential processing.

[0090] Specifically, after outputting the first control signal to the DC conversion module, the processing terminal may also output the second control signal to the control module at the same time, so that the control module performs potential processing on the first electrical signal after the voltage reduction processing according to the second control signal. The potential processing method may be, but is not limited to, maintaining the point position of the first electrical signal after the voltage reduction processing unchanged, or performing potential reversal processing on the first electrical signal after the voltage reduction processing, and the control module may output the first electrical signal after the potential processing to one end of the secondary coil of the double-coil solenoid valve. At this time, the double-coil solenoid valve may output the second electrical signal (that is, the thermocouple according to the flame generation) to one end of the main coil of the double-coil solenoid valve according to the output end of the thermocouple. The valve is controlled and processed based on the electric signal generated by the heat generated by the second electric signal and the first electric signal after the potential processing. For example, but not limited to, when the electric potential between the second electric signal and the first electric signal after the potential processing is opposite (or the magnetic field generated by the second electric signal is opposite in polarity to the magnetic field generated by the electric signal after the potential processing), the electromagnet can not generate attraction to the valve body, thereby realizing valve closing control; when the electric potential between the second electric signal and the first electric signal after the potential processing is the same (or the magnetic field generated by the second electric signal is the same in polarity to the magnetic field generated by the electric signal after the potential processing), the electromagnet can generate attraction to the valve body, thereby realizing valve opening control.

[0091] As an alternative to the above embodiment, please refer to Figure 5 The overall flow chart of another method for controlling a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application is shown.

[0092] The control method of the gas stove thermocouple double-coil solenoid valve can be applied to the control device of the gas stove thermocouple double-coil solenoid valve mentioned in one or more of the above embodiments, wherein the control module includes a first on-off control unit, a voltage reversal unit and a second on-off control unit, and the second control signal includes a circuit conduction signal and a circuit disconnection signal. Figure 5 As shown, the control method of the gas stove thermocouple double-coil solenoid valve may at least include the following steps:

[0093] Step 502: When a monitoring signal of the gas stove is detected, a first control signal is output to the DC conversion module, so that the DC conversion module steps down the first electrical signal output by the battery pack, and the DC conversion module outputs the stepped-down first electrical signal to the control module.

[0094] Specifically, step 502 may refer to step 402, which will not be described in detail here.

[0095] Step 504: When the monitoring signal of the gas stove is a timing end signal, a circuit disconnection signal is output to the second on-off control unit to disconnect the circuit between the DC conversion module and the voltage inversion unit.

[0096] Specifically, when it is identified that the monitoring signal of the gas stove is a timing end signal issued by the timing function set by the processing terminal, it indicates that the valve closing control of the gas stove is required, and then the processing terminal can output a circuit disconnection signal to the second on-off control unit, so that the second on-off control unit disconnects the circuit between the DC conversion module and the voltage reversal unit. Here, the circuit disconnection signal can be, but is not limited to, a high level signal or a low level signal, and its type can be determined according to the circuit structure of the second on-off control unit, and is not limited thereto.

[0097] Step 506: output a circuit conduction signal to the first on-off control unit to conduct the circuit between the DC conversion module and one end of the secondary coil of the dual-coil solenoid valve, and keep the potential of the first electrical signal after the voltage reduction process unchanged.

[0098] Specifically, after outputting the circuit disconnection signal to the second on-off control unit, the processing terminal can also output the circuit conduction signal to the first on-off control unit at the same time, so that the first on-off control unit conducts the circuit between the DC conversion module and one end of the secondary coil of the double-coil solenoid valve, that is, the first electrical signal after the voltage reduction process output by the DC conversion module can be directly output to one end of the secondary coil of the double-coil solenoid valve, and the potential of the first electrical signal after the voltage reduction process remains unchanged. Here, after the double-coil solenoid valve receives the first electrical signal after the voltage reduction process, because the potential between the second electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve is opposite to the first electrical signal after the voltage reduction process (or the magnetic field generated by the second electrical signal is opposite to the magnetic field polarity generated by the electrical signal after the voltage reduction process), the electromagnet can not generate attraction to the valve body, thereby realizing valve closing control. It can be understood that the circuit conduction signal can be, but is not limited to, a high-level signal or a low-level signal, and its type can be determined according to the circuit structure of the first on-off control unit, and is not limited thereto.

[0099] It can also be understood that when the monitoring signal of the gas stove is identified as a dry-burning detection signal issued by the anti-dry-burning function set by the processing terminal, it indicates that the gas stove needs to be valve closed. At this time, the way in which the processing terminal controls the double-coil solenoid valve to close the valve can refer to the above embodiment, but it will not be elaborated here.

[0100] As an alternative to the above embodiment, please refer to Figure 6 The overall flow chart of another method for controlling a gas stove thermocouple double-coil solenoid valve provided in an embodiment of the present application is shown.

[0101] The control method of the gas stove thermocouple double-coil solenoid valve can be applied to the control device of the gas stove thermocouple double-coil solenoid valve mentioned in one or more of the above embodiments, wherein the control module includes a first on-off control unit, a voltage reversal unit and a second on-off control unit, and the second control signal includes a circuit conduction signal and a circuit disconnection signal. Figure 6 As shown, the control method of the gas stove thermocouple double-coil solenoid valve may at least include the following steps:

[0102] Step 602: When a monitoring signal from the gas stove is detected, a first control signal is output to the DC conversion module, so that the DC conversion module steps down the first electrical signal output by the battery pack, and the DC conversion module outputs the stepped-down first electrical signal to the control module.

[0103] Specifically, step 602 may refer to step 402, which will not be described in detail here.

[0104] Step 604: When the monitoring signal of the gas stove is a valve pressing signal, a circuit disconnection signal is output to the first on-off control unit to disconnect the circuit between the DC conversion module and one end of the secondary coil of the double-coil solenoid valve.

[0105] Specifically, when it is identified that the monitoring signal of the gas stove is a valve pressing signal generated according to the valve rotation operation of the user, it indicates that the gas stove needs to be controlled to open the valve with a zero-second quick suction, and then the processing terminal can output a circuit disconnection signal to the first on-off control unit, so that the first on-off control unit disconnects the circuit between the DC conversion module and one end of the secondary coil of the double-coil solenoid valve. Here, the circuit structure of the first on-off control unit is the same as that of the second on-off control unit, and the circuit disconnection signal can be, but is not limited to, a high-level signal or a low-level signal, and its type can be determined according to the circuit structure of the second on-off control unit (i.e., the first on-off control unit), and is not limited thereto.

[0106] Step 606: output a circuit conduction signal to the second on-off control unit to conduct the circuit between the DC conversion module and the voltage reversal unit, and the voltage reversal unit performs a potential reversal process on the first electrical signal after the voltage reduction process.

[0107] Specifically, after outputting a circuit disconnection signal to the first on-off control unit, the processing terminal can also simultaneously output a circuit conduction signal to the second on-off control unit, so that the second on-off control unit conducts the circuit between the DC conversion module and the voltage reversal unit, thereby causing the first electrical signal after the voltage reduction process output by the DC conversion module to be output to the voltage reversal unit, and the voltage reversal unit performs a potential reversal process on the first electrical signal after the voltage reduction process. Here, after receiving the first electrical signal after the potential reversal process, the double-coil solenoid valve, because the second electrical signal output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve is the same potential as the first electrical signal after the potential reversal process (or the magnetic field generated by the second electrical signal is the same polarity as the magnetic field generated by the electrical signal after the potential reversal process), can make the electromagnet generate an attraction to the valve body, thereby realizing the valve opening control.

[0108] It is understandable that the circuit conduction signal can be but is not limited to a high level signal or a low level signal, and its type can be determined according to the circuit structure of the second on-off control unit (ie, the first on-off control unit), and is not limited thereto.

[0109] Step 608: After a preset delay time, output a circuit disconnection signal to the second on-off control unit to disconnect the circuit between the DC conversion module and the voltage inversion unit.

[0110] Specifically, since the gas stove is in a continuous ignition state, the output end of the thermocouple can continuously output a second electrical signal to one end of the main coil of the double-coil solenoid valve. After a preset delay time, in order to avoid continuous loss of the battery pack, the processing terminal can also output a circuit disconnection signal to the second on-off control unit, so that the second on-off control unit disconnects the circuit between the DC conversion module and the voltage reversal unit, that is, the secondary coil of the double-coil solenoid valve no longer receives an electrical signal. At this time, since the output end of the thermocouple continuously outputs a second electrical signal to one end of the main coil of the double-coil solenoid valve, the double-coil solenoid valve can generate a magnetic field generated by the second electrical signal so that the electromagnet continuously generates an attractive force on the valve body, thereby realizing continuous valve opening control.

[0111] As another optional embodiment of one or more of the above embodiments, before outputting the first control signal to the DC conversion module, the method further includes:

[0112] Obtaining a third electrical signal at both ends of the battery pack, and inputting the third electrical signal and a preset signal threshold into a deep learning model to obtain a duty cycle; wherein the deep learning model is trained by a preset signal threshold, at least two sample electrical signals, and a sample duty cycle corresponding to each sample electrical signal;

[0113] The first control signal is modulated according to the duty cycle.

[0114] Specifically, in order to ensure the accuracy and reliability of the DC conversion module's voltage reduction processing of the first electrical signal, before outputting the first control signal to the DC conversion module, the processing terminal may also obtain a third electrical signal at both ends of the battery pack, which may be understood as the current residual voltage of the battery pack, and input the third electrical signal and the preset signal threshold into the deep learning model to obtain the duty cycle corresponding to the first control signal by model prediction. Here, the preset signal threshold may be understood as the voltage corresponding to the secondary coil of the dual-coil solenoid valve when ensuring the current demand, such as but not limited to any voltage in the voltage range of 0.3 volts to 0.5 volts. The deep learning model may be, but is not limited to, referring to a neural network structure known in the art, which may be trained by a preset signal threshold, multiple sample electrical signals, and a sample duty cycle corresponding to each sample electrical signal.

[0115] Then, after obtaining the duty cycle corresponding to the first control signal, the processing terminal can modulate the first control signal according to the duty cycle, so as to output the first control signal to the DC conversion module after the processing terminal detects the monitoring signal of the gas stove.

[0116] As another optional embodiment of the one or more embodiments above, after outputting the second control signal to the control module, the method further includes:

[0117] When the difference between the absolute value of the second electrical signal and the absolute value of the first electrical signal after potential processing exceeds a preset difference threshold, performing difference calculation processing on the absolute value of the second electrical signal and the absolute value of the first electrical signal after potential processing;

[0118] Correcting the preset signal threshold according to the difference result to obtain a corrected signal threshold;

[0119] When the monitoring signal of the gas stove is detected again, a fourth electrical signal at both ends of the battery pack is acquired, and a third control signal is modulated according to the fourth electrical signal and a correction signal threshold;

[0120] A third control signal is output to the DC conversion module.

[0121] Specifically, in order to ensure the valve closing efficiency of the double-coil solenoid valve when the valve closing control of the gas stove is required next time, when it is detected that the absolute value of the second electrical signal output from the output end of the thermocouple to one end of the main coil and the absolute value of the first electrical signal after potential processing have a difference value exceeding the preset difference threshold, it indicates that the magnetic field generated by the electrical signal after potential processing may not be able to completely offset the magnetic field generated by the second electrical signal, and then the processing terminal can perform a difference calculation process on the absolute value of the second electrical signal and the absolute value of the first electrical signal after potential processing, and perform a correction process on the preset signal threshold value according to the difference result to obtain a correction signal threshold value. Here, when obtaining the correction signal threshold value, the processing terminal can, but is not limited to, perform a product process on the difference result and the preset proportionality coefficient, and perform a sum process on the product result and the preset signal threshold value, and then obtain the correction signal threshold value, and the correction signal threshold value is also within the above-mentioned 0.3 volt to 0.5 volt voltage range.

[0122] Then, after obtaining the correction signal threshold, the processing terminal can also obtain the fourth electrical signal at both ends of the battery pack when the monitoring signal of the gas stove is detected again, and the fourth electrical signal and the correction signal threshold can be input into the above-mentioned deep learning model to modulate the corresponding third control signal according to the predicted duty cycle. Here, the fourth electrical signal can be understood as the current residual voltage after the battery pack outputs the first electrical signal to the DC conversion module; the third control signal can be understood as a level drive signal that presents periodic changes, such as but not limited to a level drive signal arranged in sequence according to high level signals and low level signals.

[0123] Then, the processing terminal can output the modulated third control signal to the DC conversion module, so that the control device of the above-mentioned gas stove thermocouple double-coil solenoid valve can perform valve control again. The specific control method can refer to the control method of the gas stove thermocouple double-coil solenoid valve mentioned in one or more of the above embodiments, which will not be elaborated here.

Claims

1. A control device for a gas stove thermocouple double-coil solenoid valve, comprising a thermocouple, a double-coil solenoid valve and a battery pack, characterized in that: The device also includes a control module and a DC conversion module, wherein: One end of the main coil of the double-coil solenoid valve is connected to the output end of the thermocouple, the other end of the main coil of the double-coil solenoid valve is connected to the ground end through the shell, one end of the secondary coil of the double-coil solenoid valve is connected to one end of the control module, and the other end of the secondary coil of the double-coil solenoid valve is connected to the ground end through the shell; The other end of the control module is connected to one end of the DC conversion module; The other end of the DC conversion module is connected to the positive electrode of the battery pack; The negative electrode of the battery pack is connected to the ground terminal.

2. The device according to claim 1, characterized in that The control module comprises a first on-off control unit, one end of which is connected to one end of the secondary coil of the dual-coil solenoid valve, and the other end of which is connected to one end of the DC conversion module.

3. The device according to claim 2, characterized in that The control module further includes a voltage reversal unit and a second on-off control unit, wherein: One end of the voltage reversal unit is connected to one end of the secondary coil of the dual-coil solenoid valve, and the other end of the voltage reversal unit is connected to one end of the second on-off control unit; The other end of the second on-off control unit is connected to one end of the DC conversion module.

4. The device according to claim 3, characterized in that The first on-off control unit and the second on-off control unit are both field effect transistor control circuits; or The first on-off control unit and the second on-off control unit are both triode transistor control circuits; or The first on-off control unit and the second on-off control unit are both thyristor control circuits; or The first on-off control unit and the second on-off control unit are both digital analog switch circuits; or The first on-off control unit and the second on-off control unit are both load switch control circuits; or The first on-off control unit and the second on-off control unit are both relay control circuits; or The first on-off control unit and the second on-off control unit are both photoelectric switch control circuits.

5. The device according to claim 3, characterized in that The voltage inversion unit is a charge pump voltage inverter; or The voltage inversion unit is a negative voltage power converter.

6. A control method for the control device of the gas stove thermocouple double-coil solenoid valve according to any one of claims 1 to 5, characterized in that: The method comprises: When a monitoring signal of the gas stove is detected, a first control signal is output to the DC conversion module, so that the DC conversion module performs voltage reduction processing on the first electrical signal output by the battery pack, and the DC conversion module outputs the first electrical signal after voltage reduction processing to the control module; A second control signal is output to the control module so that the control module performs potential processing on the first electrical signal after the voltage reduction processing, and the control module outputs the first electrical signal after the potential processing to one end of the secondary coil of the double-coil solenoid valve, and the double-coil solenoid valve performs valve control processing according to the second electrical signal received by the main coil and the first electrical signal after the potential processing; wherein, the second electrical signal is output from the output end of the thermocouple to one end of the main coil of the double-coil solenoid valve.

7. The method according to claim 6, characterized in that Before outputting the first control signal to the DC conversion module, the method further includes: Obtaining a third electrical signal at both ends of the battery pack, and inputting the third electrical signal and a preset signal threshold into a deep learning model to obtain a duty cycle; wherein the deep learning model is trained by the preset signal threshold, at least two sample electrical signals, and a sample duty cycle corresponding to each of the sample electrical signals; A first control signal is modulated according to the duty cycle.

8. The method according to claim 6, characterized in that The control module includes a first on-off control unit, a voltage reversal unit and a second on-off control unit, and the second control signal includes a circuit conduction signal and a circuit disconnection signal; The outputting a second control signal to the control module comprises: When the monitoring signal of the gas stove is a timing end signal, outputting the circuit disconnection signal to the second on-off control unit to disconnect the circuit between the DC conversion module and the voltage inversion unit; The circuit conduction signal is output to the first on-off control unit to conduct the circuit between the DC conversion module and one end of the secondary coil of the dual-coil solenoid valve, and keep the potential of the first electrical signal after the voltage reduction process unchanged.

9. The method according to claim 8, characterized in that The outputting a second control signal to the control module further includes: When the monitoring signal of the gas stove is a valve pressing signal, outputting the circuit disconnection signal to the first on-off control unit to disconnect the circuit between the DC conversion module and one end of the secondary coil of the double-coil solenoid valve; Outputting the circuit conduction signal to the second on-off control unit to conduct the circuit between the DC conversion module and the voltage reversal unit, and allowing the voltage reversal unit to perform potential reversal processing on the first electrical signal after the voltage reduction processing; After a preset delay time, the circuit disconnection signal is output to the second on-off control unit to disconnect the circuit between the DC conversion module and the voltage inversion unit.

10. The method according to claim 7, characterized in that After outputting the second control signal to the control module, the method further includes: When the difference between the absolute value of the second electrical signal and the absolute value of the first electrical signal after potential processing exceeds a preset difference threshold, performing difference calculation processing on the absolute value of the second electrical signal and the absolute value of the first electrical signal after potential processing; Correcting the preset signal threshold according to the difference result to obtain a corrected signal threshold; When the monitoring signal of the gas stove is detected again, a fourth electrical signal at both ends of the battery pack is obtained, and a third control signal is modulated according to the fourth electrical signal and the correction signal threshold; wherein the third control signal is a periodically changing level driving signal; The third control signal is output to the DC conversion module.

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