WO2017008724A1

WO2017008724A1 - Gas cooker and method for controlling gas cooker

Info

Publication number: WO2017008724A1
Application number: PCT/CN2016/089696
Authority: WO
Inventors: 马建良; 杨桃利; 曾宪光
Original assignee: 广东美的厨房电器制造有限公司; 美的集团股份有限公司
Priority date: 2015-07-10
Filing date: 2016-07-11
Publication date: 2017-01-19

Abstract

A gas cooker and a method for controlling the gas cooker. The gas cooker comprises a main gas path, a main control valve disposed on the main gas path, N branch gas paths connected to the main gas path, N being a positive integer, N burner assemblies connected to the N branch gas paths, N branch control valves for controlling the N branch gas paths respectively, ignition pins for igniting the N burner assemblies respectively, and a controller connected to the main control valve and the N branch control valves, the controller being used to control the main control valve according to statuses of the multiple branch control valves. The control method of the gas cooker comprises: receiving a turn-off instruction from an i^th burner assembly, i being less than or equal to N; detecting statuses of other burner assemblies in the N burner assemblies; turning off the branch control valve corresponding to the i^th burner assembly and turning off the main control valve if the other burner assemblies are in a turned-off state; and turning off the branch control valve corresponding to the i^th burner assembly and enabling the main control valve to remain turned on if any one of the other burner assemblies is in a turned-on state. The gas cooker can effectively improve the safety and reliability of the gas cooker during use.

Description

Gas stove and gas stove control method

Technical field

The invention relates to the field of smart home technology, in particular to a gas stove and a gas stove control method.

Background technique

At present, with the continuous improvement of smart home technology and the continuous improvement of users' demand for intelligent control of home appliances, more and more home appliances can realize intelligent control of applications (Application, APP).

However, for some home appliances, due to certain security factors, there is a higher requirement for intelligent control of the application. Especially for gas stoves, if it is not handled properly, it is easy to cause a fire or cause gas leakage. Therefore, under the premise of intelligent control of the gas stove, it is necessary to improve the safety and reliability of the gas stove.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent.

To this end, an object of the present invention is to provide a gas stove which can effectively improve safety and reliability.

Another object of the present invention is to provide a method of controlling a gas stove.

In order to achieve the above object, a gas stove according to the first aspect of the present invention includes: a main gas path; a main control valve disposed above the main gas path; N gas separation paths, and the N gas separation paths Connected to the main gas path, wherein N is a positive integer; N burner assemblies connected to the N gas separation paths; N control valves respectively controlling the N gas separation paths; An ignition needle for respectively igniting the N burner assemblies; and a controller coupled to the main control valve and the N sub-control valves, the controller for determining a state of the plurality of sub-control valves The main control valve is controlled.

In an embodiment of the present invention, the wireless communicator receives a fire shutoff command sent by the external device, wherein the controller is further configured to control, according to the fire shutoff command, a corresponding i-th burner component corresponding to The sub-control valve is closed, and detecting whether the sub-control valve corresponding to the i-th furnace head component is switched from the open state to the closed state within a preset time, and if not switching to the closed state, determining that the fire-off fails, And sending an alarm message to the user and turning off the main control valve, i is less than or equal to N.

In an embodiment of the present invention, if the i-th flame detector still detects that the i-th burner assembly is in a combustion state after the preset time, determining the i-th burner assembly The corresponding sub-control valve is not switched from the open state to the closed state.

In an embodiment of the invention, the controller is further configured to control, according to a combustion state of the N burner assemblies or the control instruction, N sub-control valves corresponding to the N burner assemblies, When the ith of the N sub-control valves When the sub-control valve is switched from the open state to the closed state, the controller determines whether it is an unexpected flameout according to a control command sent by the external device, and performs an alarm when it is determined that the flameout is unexpected, i is less than or equal to N.

In an embodiment of the present invention, when the i-th sub-control valve of the N sub-control valves is switched from an open state to a closed state, and the external device does not send a fire-off command, the controller determines Unexpectedly extinguished.

In an embodiment of the present invention, if it is determined that the flameout is not accidentally extinguished, the controller controls the main control valve according to the states of the other sub-control valves of the N sub-control valves.

In an embodiment of the invention, when the other sub-control valves of the N sub-control valves are all in a closed state, the controller controls the main control valve to be closed; and when the N sub-control valves are other The controller controls the main control valve to remain open when any of the sub-control valves is in an open state.

In an embodiment of the invention, the N burner assemblies include a left burner assembly and a right burner assembly, when the left burner assembly or the right burner assembly is switched from an open switching state to a closed state, When the right burner assembly and the left burner assembly are both in a closed state, the controller closes the main control valve; and if the right burner assembly or the left burner assembly is in an open state, the control The main control valve is controlled to be in an open state.

The gas stove proposed by the first aspect of the present invention ensures that the gas stove is in the main control valve and the sub-control valve when the gas stove is not working, by the main control valve added in the main gas path and the corresponding control strategy of the main control valve. The closed double insurance state improves the safety and reliability of the gas stove. In addition, the embodiment of the present invention can promptly notify the user to manually close when the gas stove cannot be automatically turned off, thereby eliminating fire hazards. Moreover, in the embodiment of the present invention, when the gas stove is unexpectedly turned off, the main control valve is controlled to perform corresponding actions according to the states of the other sub-control valves, thereby ensuring that when all the sub-control valves are closed, the main control valve is also closed. Safety issues caused by accidental flameouts are avoided. At the same time, the user can be notified in time to deal with the security risks.

In order to achieve the above object, a method for controlling a gas stove according to a second aspect of the present invention includes: receiving a closing command of an i-th burner assembly, wherein i is less than or equal to N; detecting the N burner assemblies The state of the other burner assemblies; if the other burner assemblies are all closed, closing the sub-control valve corresponding to the i-th burner assembly and closing the main control valve; if any of the other burner assemblies are In the open state, the sub-control valve corresponding to the i-th burner assembly is closed, and the main control valve is kept open.

In an embodiment of the present invention, the method further includes: receiving a fire shutoff command, and controlling the corresponding sub-control valve corresponding to the i-th furnace head to be closed according to the fire-off command; determining that the i-th burner component corresponds to Whether the sub-control valve switches from the open state to the closed state within a preset time; if not, the fire control failure is determined, and an alarm message is sent to the user and the main control valve is closed.

In an embodiment of the present invention, the method further includes: controlling, according to a combustion state or a control command of the N burner assemblies, to switch an i-th sub-control valve of the N burner assemblies from an open state to a closed state, i is less than or equal to N; The control command sent by the external device determines whether it is an unexpected flameout, and performs an alarm when it is determined to be unexpectedly extinguished, and controls the main control valve according to the state of the other sub-control valves in the N burner assemblies.

In an embodiment of the present invention, the controlling the main control valve according to the states of the other sub-control valves of the N burner assemblies specifically includes: when the N sub-control valves are other sub-control valves When both are in a closed state, the controller controls the main control valve to be closed; and when any one of the other sub-control valves of the N sub-control valves is in an open state, the controller controls the The main control valve remains open.

The control method of the gas stove proposed by the embodiment of the second aspect of the present invention ensures that the gas stove is in the main control valve and the sub-point when the gas stove is not working by the main control valve added in the main gas path and the corresponding control strategy of the main control valve The dual safety of the control valves is closed, which improves the safety and reliability of the gas stove.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic structural view of a gas stove according to an embodiment of the present invention;

2 is a schematic structural view of a double solenoid valve gas stove in an embodiment of the present invention;

3 is a schematic diagram showing the logical relationship between a controller controlling a main control valve and a sub-control valve in an embodiment of the present invention;

4 is a schematic diagram of a communication flow of a gas stove in an embodiment of the present invention;

5 is a schematic diagram of a communication flow of another gas stove in an embodiment of the present invention;

6 is a schematic diagram of a gas stove shut-off process according to an embodiment of the present invention;

7 is a schematic diagram of a gas stove shut-off process according to another embodiment of the present invention;

8 is a schematic diagram of a gas stove shut-off process according to another embodiment of the present invention;

9 is a schematic diagram of a gas stove shut-off process according to another embodiment of the present invention;

Figure 10 is a schematic diagram showing the logical relationship between the fire control command flag of the main control valve a and the left furnace solenoid valve b in the embodiment of the present invention;

Figure 11 is a schematic diagram showing the logical relationship of the ignition command flag of the main control valve a and the right furnace solenoid valve c in the embodiment of the present invention;

12 is a schematic flow chart of detecting whether a left burner component is a fire failure in a gas stove according to an embodiment of the present invention;

13 is a schematic flow chart of detecting whether a right burner component is a fire failure in a gas stove according to an embodiment of the present invention;

14 is a schematic flow chart of detecting whether a left burner component is accidentally extinguished in a gas stove according to an embodiment of the present invention;

Figure 15 is a flow chart showing the gas stove detecting whether the right burner assembly is unexpectedly extinguished in the embodiment of the present invention.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative of the invention and are not to be construed as limiting. Rather, the invention is to cover all modifications, modifications and equivalents within the spirit and scope of the appended claims.

1 is a schematic structural view of a gas stove according to an embodiment of the present invention, including a main gas path; a main control valve disposed above the main gas path; N gas separation paths, and N gas separation paths respectively connected to the main gas path , wherein N is a positive integer; N burner assemblies connected to the N gas separation paths; N sub-control valves for respectively controlling N gas separation paths; and ignition needles for respectively igniting N burner assemblies; And a controller connected to the main control valve and the N sub-control valves, the controller is configured to control the main control valve according to the state of the plurality of sub-control valves.

Wherein, in the embodiment of the invention, the main gas path is a gas circulation main pipe of the gas stove, and the main control valve controls the on and off of the gas in the main gas path.

In this embodiment, the value of N is 2, that is, the double solenoid valve gas stove, the structure of the main gas path and the gas separation path is shown in FIG. 2 .

Specifically, the N burner assemblies include a left burner assembly and a right burner assembly.

Alternatively, the control valve can be a solenoid valve. For example, referring to FIG. 2, the dual solenoid valve gas stove includes a main gas path and two gas separation paths, corresponding to one main control valve a and two sub-control valves: a left furnace solenoid valve b and a right furnace solenoid valve c. The main control valve a controls the on and off of the gas in the main gas path, the left furnace solenoid valve b controls the on and off of the gas in the left gas separation path, and the right furnace solenoid valve c controls the on and off of the gas in the right gas separation path.

In one embodiment of the invention, the gas range further includes an ignition needle for respectively igniting the N burner assemblies.

Among them, the ignition needle is used to achieve ignition.

In one embodiment of the invention, a controller coupled to the main control valve and the N sub-control valves is operative to control the main control valve based on the status of the plurality of sub-control valves.

Optionally, when the N sub-control valves are all in a closed state, the controller controls the main control valve to be closed; when any one of the N sub-control valves is in an open state, the controller controls the main control valve to be opened.

For example, referring to FIG. 3, the controller controls the logical relationship of the main control valve a, the left furnace solenoid valve b, and the right furnace solenoid valve c, wherein the number "0" indicates that the solenoid valve is closed, and the number "1" indicates that the solenoid valve is open. . When the left furnace solenoid valve b and the right furnace solenoid valve c are both in the closed state, the controller controls the main control valve a to be closed, and when any of the left furnace solenoid valve b and the right furnace solenoid valve c is in the open state, the controller Control the main control valve a to open.

In an embodiment of the invention, the gas stove further includes a wireless communicator in communication with the external device for receiving a control command sent by the external device and transmitting the control command to the controller.

The external device may be an APP (application) in the mobile terminal.

Referring to FIG. 4, the wireless communicator receives an instruction initiated by the mobile terminal APP user through the local area network, and sends the instruction to the controller in the gas stove, and the controller controls the operation corresponding to the gas stove execution instruction.

For example, if the user inputs an instruction to turn off the left burner component in the mobile terminal APP, the mobile terminal APP receives the instruction and sends the instruction to the controller in the gas stove, and the controller determines whether the right burner component is turned off, if When the right burner assembly is turned off, the controller controls the left furnace solenoid valve to close, and controls the main control valve to close, thereby realizing the left burner assembly to turn off the fire.

Optionally, the external device receives the user's control command and sends the control command to the server.

For example, referring to FIG. 5, the server is used for information management of external devices and gas stoves, transmitting, storing, downloading data, etc., and providing WAN-based WAN-based communication for mobile terminal APP, gas stove, and wireless communicator in the gas stove. platform.

In the present application, the mobile terminal APP performs the operation of shutting off the burner assembly in the local area network and the wide area network WAN, and the operation of the solenoid valve of the burner is followed by the logical relationship shown in FIG.

Specifically, according to the logical relationship shown in FIG. 3, when the application APP operates a burner assembly, the operation command to the main control valve is determined according to the operating state of the other burner assembly.

For example, when the left furnace solenoid valve is closed and the right burner is turned off, the right furnace solenoid valve and the main control valve must be closed at the same time to ensure that the gas stove is in the sub-control valve and the main control when it is not working. The valves are closed in a double-insurance state.

Optionally, when the left burner assembly or the right burner assembly meets the shutdown condition, the controller detects the state of the right burner assembly or the left burner assembly, wherein if both the right burner assembly and the left burner assembly are closed When the controller closes the sub-control valve and the main control valve corresponding to the left burner assembly or the right burner assembly; if the right burner assembly or the left burner assembly is in the open state, the controller closes the left burner assembly or the right The burner assembly corresponds to the sub-control valve and keeps the main control valve open.

Wherein, the closing condition is that the wireless communicator receives the closing command of the left burner assembly or the right burner assembly, or the running time of the left burner assembly or the right burner assembly reaches the timing closing time.

In another embodiment, the gas stove further includes N flame detectors for detecting N combustion detectors of the N burner assemblies for transmitting the combustion status of the N burner assemblies to the controller.

Among them, the flame detector is a thermocouple.

Specifically, in another embodiment, referring to FIG. 6, when the closing condition is that the wireless communicator receives the closing instruction of the left burner assembly, the schematic diagram of the shutdown process of the gas stove includes:

S61: Control the left burner assembly to turn off the fire.

Specifically, the wireless communicator receives the shutdown command of the left burner component sent by the mobile terminal APP, and the left burner assembly The shutdown command is sent to the controller.

S62: It is judged whether the right furnace solenoid valve is in the closed state, and if so, step S63 is performed, otherwise step S64 is performed.

The flame detector detects the combustion state of the right burner assembly and sends the combustion state to the controller, and the controller determines whether the right furnace solenoid valve is in the closed state according to the combustion state, and then proceeds to step S63.

S63: Control the left furnace solenoid valve to close, and control the main control valve to close.

Specifically, the controller controls the left furnace solenoid valve to close and the main control valve to close.

S64: Control the left furnace solenoid valve to close, and control the main control valve to open.

Specifically, the controller controls the left furnace solenoid valve to close, and controls the main control valve to open.

In another embodiment, referring to FIG. 7, when the shutdown condition is that the wireless communicator receives the closing instruction of the right burner assembly, the schematic diagram of the shutdown process of the gas stove includes:

S71: Control the right burner assembly to turn off the fire.

Specifically, the wireless communicator receives the fire-off command of the right burner component sent by the mobile terminal APP, and sends a fire-off command of the right burner component to the controller.

S72: It is judged whether the left furnace solenoid valve assembly is in the closed state, and if so, step S73 is performed, otherwise step S74 is performed.

The flame detector detects the combustion state of the left burner assembly and sends the combustion state to the controller. The controller determines whether the left furnace solenoid valve is in the closed state according to the combustion state, and then executes step S73.

S73: Control the right furnace solenoid valve to close, and control the main control valve to close.

The controller controls the right furnace solenoid valve to close and the main control valve to close.

S74: Control the right furnace solenoid valve to close, and control the main control valve to open.

The controller controls the right furnace solenoid valve to close and controls the main control valve to open.

Specifically, in another embodiment, referring to FIG. 8, when the closing condition is that the running time of the left burner assembly reaches the timing closing time, the schematic diagram of the shutdown process of the gas stove includes:

S81: Turn off the fire after controlling the left burner assembly T.

Specifically, the wireless communicator receives the power-off command after the left burner component T sent by the mobile terminal APP, and sends the command to the controller.

S82: It is judged whether the timer time t reaches the time T, and if yes, step S83 is performed; otherwise, step S82 is repeatedly executed.

The controller determines whether the timer time t has reached the time T, and if yes, proceeds to step S83.

S83: Control the left furnace solenoid valve to close.

The controller controls the left furnace solenoid valve to close.

S84: It is judged whether the right furnace solenoid valve is in the closed state, and if so, step S85 is performed, otherwise step S86 is performed.

The flame detector detects the combustion state of the right burner assembly and sends the combustion state to the controller. The controller determines whether the right furnace solenoid valve is in the closed state according to the combustion state, and then executes step S85.

S85: Control the left furnace solenoid valve to close, and control the main control valve to close.

The controller controls the left furnace solenoid valve to close and the main control valve to close.

S86: Control the left furnace solenoid valve to close, and control the main control valve to open.

The controller controls the left furnace solenoid valve to close and controls the main control valve to open.

Specifically, in another embodiment, referring to FIG. 9, when the closing condition is that the running time of the right burner assembly reaches the timing closing time, the schematic diagram of the gas burning process of the gas stove includes:

S91: Turn off the fire after controlling the right burner assembly T.

Specifically, the wireless communicator receives the power-off command after the right burner component T sent by the mobile terminal APP, and sends the command to the controller.

S92: It is determined whether the timer time t reaches the time T, and if yes, step S93 is performed; otherwise, step S92 is repeatedly executed.

The controller determines whether the timer time t has reached the time T, and if yes, executes step S93.

S93: Control the right furnace solenoid valve to close.

The controller controls the right furnace solenoid valve to close.

S94: It is judged whether the left furnace solenoid valve is in the closed state, and if so, step S95 is performed, otherwise step S96 is performed.

The flame detector detects the combustion state of the left burner assembly and sends the combustion state to the controller. The controller determines whether the left furnace solenoid valve is in the closed state according to the combustion state, and then executes step S95.

S95: Control the right furnace solenoid valve to close, and control the main control valve to close.

S96: Control the right furnace solenoid valve to close, and control the main control valve to open.

In another embodiment, the gas stove further includes a gas leak detector for detecting the gas concentration in the room, and when the gas concentration is greater than a preset threshold, alarming to the user's client through the controller and the wireless communicator, and turning off the main Control valve and N sub-control valves.

For example, when the gas leakage device detects that the gas leakage exceeds a preset threshold, and the preset threshold is, for example, 10-20% LEL, the alarm device sounds an alarm, the cooker turns off the fire, and pushes the fault state to the server and the mobile device APP. In the alarm state, the main control valve and N sub-control valves are closed to prohibit the cooker from igniting.

Further, if the WAN is disconnected, the gas stove continuously burns for 2 hours, and the fire is automatically turned off; if the gas stove is connected to the server and the burning time exceeds 2 hours, the gas stove pushes a safety prompt to the mobile device APP every hour. Message, safety alert message such as "Warning: Gas stove has been working for 3 hours!"; If the mobile device APP device is offline, a safety warning is issued by the gas stove built-in plug-in.

In the embodiment, the main control valve added in the main gas path and the corresponding control strategy of the main control valve ensure that the gas stove is in the state of double insurance of the main control valve and the sub-control valve being closed when the gas stove is not working, thereby improving The safety and reliability of the gas stove.

In the embodiment of the present invention, under the premise of intelligent control of the gas stove, it is necessary to improve the safety and reliability of the gas stove. For example, when the user turns off the gas stove through the APP, the malfunction of the solenoid valve may cause the fire to be turned off in time. At this time, since the fire shut-off command has been issued from the user, the user thinks that the gas stove has been automatically turned off (actually not Close), so the gas stove will continue to burn, which is very likely to cause fire.

Therefore, in the case of the present invention, the embodiment of the present invention also discloses the operation of the gas stove after receiving the fire shut-off command, thereby ensuring that the gas stove is in the main control valve added in the main gas path and the corresponding control strategy of the main control valve. When it is not working, it is in the state of double insurance in which the main control valve and the sub-control valve are closed, which improves the safety and reliability of the gas stove. The embodiment of the invention can promptly notify the user to manually close when the gas stove cannot be automatically turned off, thereby eliminating fire hazards. This embodiment is specifically as follows:

Referring to FIG. 10, the value of N is 2, which is a schematic diagram of the logical relationship between the fire control command flag of the main control valve a and the left furnace solenoid valve b in the embodiment of the present invention.

Among them, the number "1" indicates that the burner assembly received the fire shut-off command.

Further, referring to FIG. 11, the value of N is 2, which is a schematic diagram of the logical relationship between the fire control command flag of the main control valve a and the right furnace solenoid valve c in the embodiment of the present invention.

Optionally, if after the preset time, the i-th flame detector still detects that the i-th burner assembly is in a combustion state, determining that the sub-control valve corresponding to the i-th burner assembly is not switched from the open state to the closed state. status. Among them, the preset time is for example 45s.

Further, optionally, if it is determined that the fire is failed, the controller controls the main control valve according to the states of the other sub-control valves of the N sub-control valves, and the wireless communicator passes the communication platform based on the wide area network WAN. Send alarm information to the user, wherein the alarm information can be like "The gas stove fails to turn off the fire, please turn off the fire as soon as possible!".

For example, when the burner assembly receives the fire shut-off command, if the solenoid valve is not closed within 45 s, the controller determines that the burner assembly fails to turn off the fire, and the gas stove pushes the fault information to the server and the mobile terminal through the WAN-based communication platform. APP.

Specifically, in another embodiment, referring to FIG. 12, a schematic diagram of a gas stove detecting whether the left burner component is a failure to turn off the fire includes:

S121: Send a shutdown command of the left burner assembly to the controller.

Specifically, the user sends a shutdown command of the left burner assembly to the controller through the mobile terminal APP.

S122: The fire stop command flag of the left burner assembly becomes 1.

Specifically, after receiving the fire-off command sent by the user, the controller controls the fire-off command flag of the left burner component to become 1.

S123: Determine whether the time from the opening to the closing of the left furnace solenoid valve reaches a preset time. If yes, execute step S124; otherwise, execute step S126.

Among them, the preset time is for example 45s.

When the controller judges that the time from the opening to the closing of the left furnace solenoid valve reaches 45 s, the step S124 is triggered.

S124: It is determined that the left furnace solenoid valve fails to turn off the fire.

The controller determines that the left furnace solenoid valve has failed to turn off the fire.

S125: Pushing the failure information of the left furnace electromagnetic valve to extinguish the fire, and giving the server and the mobile terminal APP.

Specifically, the wireless communicator transmits the fault information of the left furnace solenoid valve to the server and the mobile terminal APP by using a local audible and visual reminder, a push reminder of the user's mobile phone, an alarm reminder, and the like through a communication platform based on the wide area network WAN.

S126: It is judged whether the right furnace solenoid valve is in the closed state, and if so, step S127 is performed, otherwise step S128 is performed.

When the controller determines that the right furnace solenoid valve is in the off state, the step S127 is triggered.

S127: Close the main control valve.

The controller controls the main control valve to close.

S128: Open the main control valve.

The controller controls the main control valve to open.

Specifically, in another embodiment, referring to FIG. 13 , a schematic diagram of a gas stove detecting whether the right burner component is a failure to turn off the fire includes:

S131: Send a fire shutoff command of the right burner component to the controller.

Specifically, the user sends a shutdown command of the right burner component to the controller through the mobile terminal APP.

S132: The ignition command flag of the right burner assembly is changed to 1.

Specifically, after receiving the fire-off command sent by the user, the controller controls the fire-off command flag of the right burner component to become 1.

S133: It is judged whether the time from the opening to the closing of the right furnace solenoid valve reaches the preset time, and if so, step S134 is performed, otherwise, step S136 is performed.

Among them, the preset time is for example 45s.

When the controller determines that the time from the opening to the closing of the right furnace solenoid valve reaches 45 s, the step S134 is triggered.

S134: It is determined that the right furnace solenoid valve fails to turn off the fire.

The controller determines that the right furnace solenoid valve has failed to turn off the fire.

S135: Pushing the fault information of the right furnace solenoid valve to turn off the fire, and giving the server and the mobile terminal APP.

Specifically, the wireless communicator transmits the fault information of the right furnace solenoid valve to the server and the mobile terminal APP through the communication platform based on the wide area network WAN, using the local sound and light reminder and the push reminder of the user's mobile phone, the alarm reminder, and the like.

S136: It is judged whether the left furnace solenoid valve is in the closed state, and if so, step S137 is performed, otherwise step S138 is performed.

When the controller determines that the left furnace solenoid valve is in the off state, the step S137 is triggered.

S137: Close the main control valve.

The controller controls the main control valve to close.

S138: Open the main control valve.

The controller controls the main control valve to open.

For example, when the gas leakage device detects that the gas leakage exceeds a preset threshold, and the preset threshold is, for example, 10-20% LEL, the alarm device sounds an alarm, the cooker turns off the fire, and pushes the fault state to the server and the mobile device APP. In the alarm state, the main control valve and N sub-control valves are closed. Do not ignite the stove.

In this embodiment, the main control valve added in the main gas path and the corresponding control strategy of the main control valve ensure that the gas stove is in a double-insurance state in which the main control valve and the sub-control valve are closed when not in operation. Improve the safety and reliability of the gas stove. The embodiment of the invention can promptly notify the user to manually close when the gas stove cannot be automatically turned off, thereby eliminating fire hazards.

In addition, when the user is not at home, for some reasons (such as overflowing pot), the gas stove is extinguished, and the accidental flameout caused by the situation, the ability to further improve the safety protection is required, and the user can be notified in time. To this end, the present application also proposes a control method for the gas stove for accidental flameout. Through the main control valve added in the main gas path and the corresponding control strategy of the main control valve, it is ensured that the gas stove is in the double insurance state in which the main control valve and the sub-control valve are closed when the gas stove is not working, and the gas stove is improved. Safety and reliability. In addition, in the embodiment of the present invention, when the gas stove is unexpectedly turned off, the main control valve is controlled to perform corresponding actions according to the states of the other sub-control valves, thereby ensuring that when all the sub-control valves are closed, the main control valve is also closed. Safety issues caused by accidental flameouts are avoided. At the same time, the user can be notified in time to deal with the security risks.

Specifically, the present embodiment is as follows:

Specifically, in another embodiment, referring to FIG. 14, a schematic diagram of a gas stove detecting whether the left burner assembly is unexpectedly extinguished includes:

S141: Monitor the left furnace solenoid valve.

Specifically, the controller monitors the left furnace solenoid valve.

S142: Determine whether the switch state of the left furnace solenoid valve is changed from open to closed, and if yes, execute step S143; otherwise, execute step S144.

When the controller determines that the switching state of the left furnace solenoid valve is switched from open to closed, step S143 is triggered.

S143: Determine whether the OFF fire command flag of the left furnace solenoid valve is 0. If yes, execute step S145; otherwise, execute step S147.

When the controller determines that the fire shutoff command flag of the left furnace solenoid valve is 0, the step S145 is triggered.

S144: The controller determines that the left burner assembly is working normally and does not process it.

Specifically, since the left furnace solenoid valve is not closed, the left burner assembly is in the normal operating mode and the controller does not process.

S145: It is determined that the left furnace solenoid valve is unexpectedly turned off.

The controller determines that the left furnace solenoid valve is unexpectedly extinguished.

S146: Pushing the fault information of the left furnace solenoid valve to be unexpectedly turned off, to the server and the mobile terminal APP.

Specifically, the wireless communicator transmits the fault information of the left-hearted solenoid valve to the server and the mobile terminal APP through a communication platform based on the wide area network (WAN), using a local sound and light reminder, a push reminder of the user's mobile phone, an alarm reminder, and the like.

S147: It is judged whether the right furnace solenoid valve is in the closed state, and if so, step S148 is performed, otherwise step S149 is performed.

When the controller determines that the right furnace solenoid valve is in the off state, the step S148 is triggered.

S148: Close the main control valve.

The controller controls the main control valve to close.

S149: Open the main control valve.

The controller controls the main control valve to open.

Specifically, in another embodiment, referring to FIG. 15, a schematic diagram of a gas stove detecting whether the right burner assembly is unexpectedly extinguished includes:

S151: Monitor the right furnace solenoid valve.

Specifically, the controller monitors the right furnace solenoid valve.

S152: It is judged whether the switching state of the right furnace solenoid valve is changed from open to closed, and if so, step S153 is performed, otherwise, step S154 is performed.

When the controller determines that the switching state of the right furnace solenoid valve is switched from open to closed, step S153 is triggered.

S153: It is determined whether the OFF fire command flag of the right furnace solenoid valve is 0. If yes, step S155 is performed; otherwise, step S157 is performed.

When the controller determines that the fire shutoff command flag of the right furnace solenoid valve is 0, the step S155 is triggered.

S154: The controller determines that the right burner assembly is working normally and does not process it.

Specifically, since the right furnace solenoid valve is not closed, the right burner assembly is in the normal operating mode and the controller does not process it.

S155: Determine that the right furnace solenoid valve is unexpectedly turned off.

The controller determines that the right furnace solenoid valve has unexpectedly stalled.

S156: Pushing the fault information of the right furnace solenoid valve to unexpectedly extinguish, and giving the server and the mobile terminal APP.

Specifically, the wireless communicator transmits the fault information of the right furnace solenoid valve to the server and the mobile terminal APP through the communication platform based on the wide area network WAN, using the local sound and light reminder, the push reminder of the user's mobile phone, the alarm reminder, and the like.

S157: It is judged whether the left furnace solenoid valve is in the closed state, and if so, step S158 is performed, otherwise step S159 is performed.

When the controller determines that the left furnace solenoid valve is in the off state, the step S158 is triggered.

S158: Close the main control valve.

The controller controls the main control valve to close.

S159: Open the main control valve.

The controller controls the main control valve to open.

In the embodiment, the main control valve added in the main gas path and the corresponding control strategy of the main control valve ensure that the gas stove is in the state of double insurance of the main control valve and the sub-control valve being closed when the gas stove is not working, thereby improving The safety and reliability of the gas stove. In addition, in the embodiment, when the gas stove is unexpectedly turned off, the main control valve is controlled to perform corresponding actions according to the state of the other sub-control valves, thereby ensuring that when all the sub-control valves are closed, the main control valve is also closed, thereby avoiding The safety problem caused by accidental flameout. At the same time, the user can be notified in time to deal with the security risks.

In addition, the present invention also provides a method for controlling a gas stove, and the method for controlling the gas stove can be applied to any of the above gas stoves.

It should be noted that in the description of the present invention, the terms "first", "second" and the like are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specified.

Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a particular logical function or process. And The scope of the preferred embodiments of the present invention includes additional implementations in which the functions may be performed in a substantially simultaneous manner or in an opposite order depending on the functions involved, in the order shown or discussed. Embodiments of the invention will be understood by those skilled in the art.

It should be understood that portions of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A gas stove characterized by comprising:

Main gas path;

a main control valve disposed above the main gas path;

N gas separation paths, wherein the N gas separation paths are respectively connected to the main gas path, wherein N is a positive integer;

N burner assemblies connected to the N gas separation paths;

Controlling each of the N sub-control valves of the N gas separation paths;

An ignition pin for respectively igniting the N burner assemblies;

a controller coupled to the main control valve and the N sub-control valves, the controller for controlling the main control valve according to a state of the plurality of sub-control valves.
A gas cooker according to claim 1, wherein

The controller controls the main control valve to be closed when the N sub-control valves are all in a closed state;

The controller controls the main control valve to open when any one of the N sub-control valves is in an open state.
The gas cooker according to claim 1, further comprising:

A wireless communicator in communication with the external device, configured to receive a control command sent by the external device, and send the control command to the controller.
The gas cooker according to claim 1 or 3, further comprising:

N flame detectors for detecting the combustion state of the N burner assemblies for transmitting the combustion state of the N burner assemblies to the controller.
A gas burner according to claim 4, wherein said flame detector is a thermocouple.
A gas cooker according to claim 1 or 3, wherein said N burner assemblies include a left burner assembly and a right burner assembly, when said left burner assembly or right burner assembly meets a shutdown condition The controller detects a state of the right burner assembly or the left burner assembly, wherein

If the right burner assembly and the left burner assembly are both in a closed state, the controller closes the sub-control valve and the main control valve corresponding to the left burner assembly or the right burner assembly;

If the right burner assembly or the left burner assembly is in an open state, the controller closes the sub-control valve corresponding to the left burner assembly or the right burner assembly, and keeps the main control valve in an open state. .
The gas cooker according to claim 6, wherein said shutdown condition is received by said wireless communicator The closing command of the left burner assembly or the right burner assembly, or the running time of the left burner assembly or the right burner assembly, reaches a timed closing time.
The gas cooker according to claim 1, further comprising:

a gas leak detector for detecting a gas concentration in the room, and when the gas concentration is greater than a preset threshold, alerting the user of the user through the controller and the wireless communicator, and turning off the Main control valve and said N sub-control valves.
The gas cooker according to claim 4, wherein the wireless communicator receives a fire shutoff command sent by the external device, wherein the controller is further configured to control the corresponding fire according to the fire shutoff command The sub-control valve corresponding to the i burner assemblies is closed, and detecting whether the sub-control valve corresponding to the i-th furnace head component is switched from the open state to the closed state within a preset time, if not switched to the closed state, Then it is judged that the fire is failed, and an alarm message is sent to the user and the main control valve is closed, i is less than or equal to N.
The gas cooker according to claim 9, wherein if said i-th flame detector still detects that said i-th burner assembly is in a combustion state after said preset time, said The sub-control valve corresponding to the i-th burner assembly is not switched from the open state to the closed state.
The gas cooker according to claim 4, wherein said controller is further configured to: N corresponding to said N burner assemblies according to said combustion state of said N burner assemblies or said control command The sub-control valve performs control. When the i-th sub-control valve of the N sub-control valves is switched from the open state to the closed state, the controller determines whether it is an unexpected flameout according to a control command sent by the external device. And when it is judged to be unexpectedly extinguished, an alarm is given, i is less than or equal to N.
The gas cooker according to claim 11, wherein when the i-th sub-control valve of the N sub-control valves is switched from an open state to a closed state, and the external device does not send a fire-off command, The controller determines to be unexpectedly extinguished.
A gas cooker according to claim 11, wherein said controller controls said main control valve based on a state of the other of said plurality of sub-control valves if it is judged that the flame is not unexpectedly extinguished.
The gas cooker according to claim 13, wherein

The controller controls the main control valve to be closed when the other of the N sub-control valves are in a closed state;

The controller controls the main control valve to remain open when any one of the other sub-control valves of the N sub-control valves is in an open state.
The gas cooker according to claim 13, wherein said N burner assemblies include a left burner assembly and a right burner assembly, and when said left burner assembly or right burner assembly is switched from an open switching state to When the state is off,

The controller closes the main control valve if both the right burner assembly and the left burner assembly are in a closed state;

The controller controls the main control valve to be in an open state if the right burner assembly or the left burner assembly is in an open state.
A method for controlling a gas stove according to any one of claims 1 to 15, comprising the steps of:

Receiving a closing command of the i-th burner assembly, wherein i is less than or equal to N;

Detecting a state of other burner assemblies of the N burner assemblies;

If the other burner assemblies are all closed, closing the sub-control valve corresponding to the i-th burner assembly and closing the main control valve;

If any of the other burner assemblies are in an open state, the sub-control valve corresponding to the i-th burner assembly is closed and the main control valve is opened.
The method of controlling a gas stove according to claim 16, further comprising:

Receiving a fire shut-off command, and controlling the corresponding sub-control valve corresponding to the i-th furnace head to be closed according to the fire-off command;

Determining whether the sub-control valve corresponding to the i-th furnace head component is switched from an open state to a closed state within a preset time;

If it is not switched to the off state, it is judged that the fire is failed, and an alarm message is sent to the user and the main control valve is closed.
The method of controlling a gas stove according to claim 16, further comprising:

Controlling the i-th sub-control valve of the N burner assemblies to switch from an open state to a closed state according to a combustion state or a control command of the N burner assemblies, i being less than or equal to N;

Determining whether it is an accidental flameout according to a control command sent by the external device, and performing an alarm when it is determined that the fan is unexpectedly turned off, and controlling the main control valve according to states of other sub-control valves in the N burner assemblies.
The control method of the gas stove according to claim 18, wherein the controlling the main control valve according to the state of the other sub-control valves of the N burner assemblies comprises:

The controller controls the main control valve to be closed when the other of the N sub-control valves are in a closed state;

The controller controls the main control valve to remain open when any one of the other sub-control valves of the N sub-control valves is in an open state.