CN112710006A

CN112710006A - Stove ignition device, control method thereof and stove

Info

Publication number: CN112710006A
Application number: CN202011598347.2A
Authority: CN
Inventors: 陈敏; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-27
Anticipated expiration: 2040-12-29
Also published as: CN112710006B

Abstract

The application discloses a cooker ignition device, a control method thereof and a cooker, and relates to the field of cookers, wherein the device comprises an ignition module, a protection electromagnetic valve, a mechanical plug valve, a detection module and a control module; the control module is respectively connected with the ignition module, the protection electromagnetic valve, the microswitch and the detection module, and is used for acquiring the detection state of the microswitch and the detection state of the detection module, when the microswitch is determined to be triggered according to the detection state of the microswitch, and when the detection module detects a pressing action according to the detection state of the detection module, the protection electromagnetic valve is controlled to be opened, and the ignition module is controlled to execute ignition. This application carries out two detections through detection module and dabs the switch, can avoid ignition to go up electric auto-ignition again after the power failure, improves the security of cooking utensils.

Description

Stove ignition device, control method thereof and stove

Technical Field

The application relates to the field of cookers, in particular to a cooker ignition device, a control method thereof and a cooker.

Background

The igniters used in the cooking utensils on the market at present are mainly divided into two types, one type is a thermocouple flameout protection igniter, and the other type is an ion flameout protection igniter. Wherein, ion flame-out protection point firearm generally utilizes the singlechip as the core of controller, come control circuit to ignite the action through the singlechip, what the cooking utensils adopted is when mechanical type plug valve, after pressing down the plug valve, the protection of plug valve is opened, can anticlockwise rotation until making micro-gap switch open, the battery supplies power for some firearm this moment, make the control system of some firearm begin work, the singlechip detects micro-gap switch and opens simultaneously, consequently, ignite the action, later the singlechip carries out flame-out protection monitoring, when detecting unexpected flame-out signal, the solenoid valve is turned off to the singlechip, cause danger in order to avoid gas to reveal.

When adopting mechanical type plug valve and simultaneously adopting ion flame-out protection point firearm as ignition and flame-out protection, when the valve rod of plug valve was pressed, the valve rod can descend, when pressing to the end, the protection of plug valve was opened, and anticlockwise rotation is up to making micro-gap switch open, and some firearm systems obtained power and ignition signal simultaneously this moment (the micro-gap switch of plug valve is opened), and some firearm igniteed, consequently can only detect whether micro-gap switch opens as ignition signal after some firearm systems are gone up the electricity. If the stove is in the normal combustion process, the power supply of the igniter is failed suddenly, although the protection electromagnetic valve can close the gas source due to power failure, and the safety leak of gas leakage can be blocked, in the related technology, if the power failure igniter obtains power supply again, the singlechip can detect the signal of the microswitch when the singlechip is initialized, and then ignition is implemented again. This can create a safety hazard if the user does not notice or if the user considers the power-off protection as having been turned off.

Disclosure of Invention

In view of this, the present application aims to: a stove ignition device, a control method thereof and a stove are provided to improve the safety of the stove.

In a first aspect, an embodiment of the present application provides:

a cooktop ignition device comprising:

an ignition module for performing ignition;

a protection solenoid valve for controlling gas supply to a burner of the cooker;

the mechanical plug valve is provided with a microswitch for detecting the valve position of the mechanical plug valve;

the detection module is used for detecting the pressing action of the mechanical plug valve;

the control module is respectively connected with the ignition module, the protection electromagnetic valve, the microswitch and the detection module, and is used for acquiring the detection state of the microswitch and the detection state of the detection module, when the microswitch is determined according to the detection state of the microswitch, the microswitch is triggered, and the detection module is determined according to the detection state of the detection module, when the detection module detects a pressing action, the protection electromagnetic valve is controlled to be opened, and the ignition module is controlled to carry out ignition.

It can be understood that through the cooperation of the detection module and the mechanical cock in the above embodiment, the pressing state of the valve rod can be detected under the condition of unexpected power failure, so that the situation that the ignition device is electrified again is avoided, and the safety of the cooker is improved.

In some embodiments, the apparatus further comprises a fire detection module, the fire detection module being connected to the control module;

the fire detection module is used for detecting the combustion state of the combustor;

the control module is further used for acquiring the detection state of the ignition detection module after controlling the ignition module to perform ignition, and controlling the protection electromagnetic valve to be closed after the burner is determined to be flameout according to the detection state of the ignition detection module.

Known through above-mentioned embodiment, this embodiment disposes and examines fire module, can close the protection solenoid valve under the unexpected state of putting out a fire, avoids taking place the gas and leaks, further promotes the security of cooking utensils.

In some embodiments, the mechanical plug valve comprises a valve body, a valve stem mounted in the valve body, and a connecting member disposed on the valve stem; the detection module comprises a permanent magnet and a magnetic suction switch, and the permanent magnet is fixedly connected with the valve rod through the connecting part;

when the valve rod is pressed, the permanent magnet is driven to move from a first station to a second station, and when the permanent magnet is positioned at the second station, the magnetic suction switch is triggered by the permanent magnet and is in a first state; when the permanent magnet is located at the first station, the magnetic suction switch is reset to a second state.

According to the embodiment, the permanent magnet and the magnetic suction switch are used as the detection module, the non-contact design is adopted, when a user operates, the part of the mechanical plug valve cannot directly contact with the magnetic suction switch, the switch cannot be damaged due to improper operation (such as excessive force) of the user, the mechanical plug valve is more reliable when being applied to a cooker, and mechanical faults are fewer.

In some embodiments, the connection member includes a fixing rod and a connecting rod, a first end of the fixing rod is connected to the valve rod, a second end of the fixing rod is connected to the first end of the connecting rod, the fixing rod and the connecting rod form an L-shaped or T-shaped structure, and a second end of the connecting rod is connected to the permanent magnet.

As can be seen from the above embodiments, the permanent magnet can be fixed simply and reliably.

In some embodiments, the protection solenoid valve is a normally closed solenoid valve, which refers to a solenoid valve that self-resets to a closed state when power is lost.

It can be understood that the protection electromagnetic valve is a normally closed electromagnetic valve, and when the power failure occurs, the protection electromagnetic valve can be ensured to be closed, so that the gas leakage is avoided.

In some embodiments, the mechanical plug valve comprises a valve body and a valve rod installed in the valve body, the detection module comprises a self-reset switch, the self-reset switch is arranged on the valve body, a knob is arranged on the valve rod and moves from a third station to a fourth station when being pressed, when the knob is in the fourth station, the self-reset switch is pressed to be closed, and when the knob is in the third station, the self-reset switch is in an off state.

Through above-mentioned embodiment, will integrate on the valve body from reset switch as detection module, trigger when the user presses the knob from reset switch closure, can detect user's pressing action simply reliably.

In some embodiments, the ignition module and the fire detection module share a metal needle, wherein the ignition module generates an electric spark through the metal needle, and the fire detection module detects the combustion state of the combustor through an electric ion conduction state between the metal needle and the combustor.

According to the embodiment, the ignition detection module and the ignition module share one metal needle, so that the number of parts on the combustor can be reduced, the space is saved on one hand, and the cost is reduced on the other hand.

In a second aspect, embodiments of the present application provide:

a control method of a stove ignition device comprises the following steps:

acquiring the detection state of the microswitch and the detection state of the detection module;

and when the microswitch is determined to be triggered according to the detection state of the microswitch and the detection module detects the pressing action according to the detection state of the detection module, the protection electromagnetic valve is controlled to be opened, and the ignition module is controlled to ignite.

According to the embodiment, ignition is implemented when the condition that a user presses the valve rod and the microswitch is in a trigger state is detected, so that potential safety hazards can be reduced.

In some embodiments, the method further comprises the steps of:

and after the ignition module is controlled to ignite, the detection state of the ignition detection module is obtained, and when the flameout of the combustor is determined according to the detection state of the ignition detection module, the protection electromagnetic valve is controlled to be closed.

Known to the above embodiment, this embodiment can close the protection solenoid valve under the unexpected state of putting out a fire through the combustion state of examining fire module detection combustor, avoids taking place the gas and leaks, further promotes the security of cooking utensils.

In a third aspect, embodiments of the present application provide:

a cooker comprises at least one burner and at least one ignition device of the cooker.

It can be understood that the safety hazard of the cooker can be reduced through the embodiment, and a safer cooker is provided for users.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a stove ignition device provided according to an embodiment of the application;

FIG. 2 is a schematic structural diagram of another stove ignition device provided according to an embodiment of the application;

FIG. 3 is a schematic diagram of a cooktop ignition control method provided according to an embodiment of the application;

FIG. 4 is a schematic diagram of another cooktop ignition control method provided in accordance with an embodiment of the present application;

FIG. 5 is a schematic view of a cooktop provided in accordance with an embodiment of the present invention.

Detailed Description

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below through embodiments with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" (if any) in the following embodiments are provided only for the convenience of distinguishing different objects, and do not have actual meanings themselves, and therefore, the terms "first", "second", and the like do not particularly limit the features themselves.

In the related art, a mechanical plug valve and an ignition device based on single chip microcomputer control are adopted, and the mechanical plug valve cannot be automatically reset under the condition of power failure, although a protection electromagnetic valve is closed due to protection action, the single chip microcomputer can be reinitialized under the condition of power re-electrification, and therefore the ignition device can execute an ignition program. By adopting the scheme, if the user regards the power failure flameout as normal flameout, the singlechip is ignited again when being electrified again, although the risks such as deflagration do not exist, if the user is not on the spot, the kitchenware can be burned out, and even a fire disaster can be caused.

For this reason, the present solution adds a means for detecting a pressing action for the mechanical plug valve, and ignition is performed only when it is detected that the microswitch is activated and the pressing action is performed. Therefore, the embodiment of the application can avoid the automatic re-ignition of the ignition device under the condition of accidental power failure and flameout.

Referring to fig. 1, the present embodiment discloses a range ignition device, including:

and an ignition module 110 for performing ignition.

A protection solenoid valve 120 for controlling the gas supply of the burner.

Mechanical plug valve 130, with protection solenoid valve 120 is connected, mechanical plug valve is provided with and is used for detecting the micro-gap switch of mechanical plug valve position. It will be appreciated that the burner needs to be supplied with air with both the protective solenoid valve 120 and the mechanical stop cock 130 open, typically the mechanical stop cock 130 is manually opened by the user, while the protective solenoid valve has a control module that is automatically controlled on a program basis. Generally, after passing through the protection solenoid valve 120, the gas is released from the burner through the mechanical plug valve 130, and the ignition module 110 ignites the burner by generating an electric spark.

And the detection module 140 is used for detecting the pressing action of the mechanical plug valve.

And the control module 150 is respectively connected with the ignition module, the protection electromagnetic valve, the microswitch and the detection module, and is used for acquiring the detection state of the microswitch and the detection state of the detection module, determining that the microswitch is triggered according to the detection state of the microswitch, and controlling the protection electromagnetic valve to be opened and controlling the ignition module to perform ignition when the detection module detects a pressing action according to the detection state of the detection module. It will be appreciated that the control of the other modules by the control module may include sending certain signals to cause them to perform certain actions, or may control their enablement by controlling their power supply.

The ignition module generates high-voltage pulse and generates electric spark by using an ignition needle (metal needle) arranged on a combustor.

The protection solenoid valve is usually a normally closed solenoid valve, that is, the solenoid valve automatically resets to a closed state without being powered on. Of course, in some embodiments, other power-down protection actions may be taken to close the solenoid valve, for example, the ignition device adopts a charging structure, and the rechargeable battery drives the protection solenoid valve to close when the external power supply is cut off or the voltage is insufficient. It will of course be appreciated that the use of a normally closed solenoid valve is more reliable and less expensive.

The detection module can be a self-reset switch (for example, a light touch switch) and a magnetic switch (for example, a reed switch) which can be triggered in a mechanical mode. In general, a knob is mounted on a valve rod of an ignition device, and detection of a pressing action can be achieved by selecting the valve rod or mounting a detection switch on the knob.

Referring to fig. 1, in the present embodiment, the mechanical plug valve 130 includes a valve body 131, a valve stem 132 installed in the valve body 131, and a connection member 133 provided on the valve stem; the detection module 140 includes a permanent magnet 141 and a magnetic switch 142 (in this embodiment, a reed pipe is used), and the permanent magnet is fixedly connected to the valve rod through the connection component;

when the valve rod 132 is pressed, the permanent magnet 141 is driven to move from the first station to the second station (i.e. the position of the dashed line box 143), and when the permanent magnet is located at the second station, the magnetic switch 142 is triggered by the permanent magnet 141 and is in the first state (i.e. the closed state); when the permanent magnet is positioned at the first station, the magnetic suction switch is reset to a second state (namely, the magnetic suction switch is restored to an off state).

Thus, the control module can determine whether there is a pressing action by obtaining the detection status of the detection module 140, for example, one pin of the controller outputs a level signal, and the other pin of the controller detects the level signal, and the control module 150 can detect the level signal when the magnetic switch 142 is closed, and determine that the pressing action occurs. Similarly, the logic of the detection can be flexibly adjusted according to the setting state of the magnetic switch 142 when the valve rod 132 is pressed or not pressed.

Referring to fig. 2, in some embodiments, the mechanical plug valve includes a valve body 131 and a valve stem 132 installed in the valve body 131, the detection module includes a self-resetting switch 170, the self-resetting switch 170 is disposed on the valve body 131, a knob 134 is disposed on the valve stem 132, the knob 134 moves from a third position to a fourth position when pressed, the self-resetting switch 170 is pressed to close the self-resetting switch 170 when the knob 134 is in the fourth position, and the self-resetting switch 170 is in an open state when the knob is in the third position. In fact, in this embodiment, the third position refers to the position of the knob 134 where the valve rod 132 is in the self-reset state, and the fourth position refers to the position where the knob 134 is located when the valve rod 132 is pressed (generally, pressed to the bottom of the valve body 131). Similar to the detection method in fig. 1, the control module 150 can determine whether the valve stem is pressed by acquiring the open/close state of the self-reset switch 170.

In other words, in the embodiment of the present application, ignition is not performed when it is detected that the micro switch is activated without detecting the pressing action against the valve stem. Ignition is only performed when the microswitch is triggered and a pressing action against the valve stem is detected.

In summary, it can be understood that through the cooperation of the detection module and the mechanical cock valve in the above embodiments, the pressing state of the valve rod can be detected under the condition of unexpected power failure, so that the situation that the ignition device is powered on again is avoided, and the safety of the cooker is improved. In other words, the control module does not execute the ignition operation when the state of any one of the ignition module and the tact switch does not meet the condition.

Referring to fig. 1 and 2, in some embodiments, the apparatus further comprises a fire detection module 160, the fire detection module 160 being connected to the control module 150;

the fire detection module 160 is used for detecting the combustion state of the combustor;

the control module 150 is further configured to acquire a detection state of the ignition detection module 160 after controlling the ignition module 110 to perform ignition, and control the protection solenoid valve 120 to close after determining that the burner is extinguished according to the detection state of the ignition detection module 160. The control logic associated with the fire detection module is shown in fig. 4.

In the present embodiment, the fire detection module may be implemented by using a temperature probe, for example, a thermocouple. The temperature of the combustor is detected through the temperature probe, so that whether the combustor is in a combustion state or not can be detected. For example, in the lit condition, the burner temperature is generally close to that of gas combustion, while in the extinguished condition, the burner temperature may be below a certain value or exhibit a tendency to drop rapidly. By detecting these conditions, the control module may determine whether the ignition is currently in place. In some embodiments, an ion ignition detection module may be used to determine the combustion state of the burner by detecting the ion conduction state between the metal needle and the burner.

Referring to fig. 1, in some embodiments, the connection part 133 includes a fixing rod and a connection rod, a first end of the fixing rod is connected to the valve rod 132, a second end of the fixing rod is connected to a first end of the connection rod, the fixing rod and the connection rod form an L-shaped or T-shaped structure, and a second end of the connection rod is connected to the permanent magnet 141.

Referring to fig. 1 and 2, in some embodiments, the ignition module 110 and the ignition detection module 160 share a metal needle 180, wherein the ignition module 110 generates an electric spark through the metal needle 180, and the ignition detection module 160 detects a burner temperature through the metal needle 180 to detect a combustion state of the burner. In some embodiments, an ion fire detection module may be selected, and in these embodiments, the fire detection module detects the combustion state of the burner through an electric ion conduction state between the metal needle and the burner.

According to the embodiment, the fire detection module and the ignition module share one metal needle arranged on the combustor, so that the number of parts on the combustor can be reduced, the space is saved on one hand, and the cost is reduced on the other hand.

Referring to fig. 3, the embodiment discloses a control method of a cooker ignition device, which comprises the following steps:

step 310, acquiring the detection state of the microswitch and the detection state of the detection module;

and step 320, when the microswitch is determined to be triggered according to the detection state of the microswitch and the detection module detects the pressing action according to the detection state of the detection module, controlling the protection electromagnetic valve to be opened and controlling the ignition module to ignite.

Referring to fig. 4, in some embodiments, the method further comprises the steps of:

Referring to fig. 5, the present embodiment discloses a cooking appliance, which includes at least one burner 520, and at least one ignition device 530 of the cooking appliance. Wherein each cooktop ignition device 530 corresponds to one burner 520. It is to be understood that only a portion of the cooktop ignition device 530 is shown in fig. 5, with another portion thereof located below the face plate 510 of the cooktop.

From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A cooking utensil ignition device, characterized by comprising:

an ignition module for performing ignition;

2. The cooktop ignition device of claim 1, further comprising a fire detection module connected to the control module;

3. The cooktop ignition device of claim 1, wherein the mechanical plug valve comprises a valve body, a valve stem mounted in the valve body, and a connecting member disposed on the valve stem; the detection module comprises a permanent magnet and a magnetic suction switch, and the permanent magnet is fixedly connected with the valve rod through the connecting part;

4. The cooktop ignition device of claim 3, wherein the connection member comprises a fixing rod and a connecting rod, a first end of the fixing rod is connected to the valve rod, a second end of the fixing rod is connected to a first end of the connecting rod, the fixing rod and the connecting rod form an L-shaped or T-shaped structure, and a second end of the connecting rod is connected to the permanent magnet.

5. The cooking stove ignition device according to claim 1, wherein the protection solenoid valve is a normally closed solenoid valve, and the normally closed solenoid valve is a solenoid valve that self-resets to a closed state when power is lost.

6. The cooktop ignition device of claim 1, wherein the mechanical plug valve comprises a valve body and a valve stem mounted in the valve body, the detection module comprises a self-reset switch disposed on the valve body, a knob is disposed on the valve stem, the knob moves from a third position to a fourth position when pressed, the knob, when in the fourth position, presses the self-reset switch to close the self-reset switch, and when in the third position, the self-reset switch is in an open state.

7. The stove ignition device of any one of claims 1 to 6, wherein the ignition module and the fire detection module share a metal needle disposed at a burner, wherein the ignition module generates an electric spark through the metal needle, and the fire detection module detects the combustion state of the burner through an electric ion conduction state between the metal needle and the burner.

8. A control method of a hob ignition device as claimed in any one of the claims 1 to 7, characterized by comprising the steps of:

9. The method of controlling a cooktop ignition device of claim 8, further comprising the steps of:

10. Hob, characterized in that it comprises at least one burner and at least one hob ignition device according to any one of the claims 1 to 7.