CN115751400A - Fire-off device for gas stove - Google Patents

Abstract

The invention discloses a fire-off device for a gas stove, which comprises a timer, a controller, and a barrier execution component. Both the barrier execution component and the timer are electrically connected to the controller, and the controller controls The blocking actuator acts to block the fire hole of the central fire cover of the gas range from the thermocouple of the gas range or allow the fire hole of the central fire cover to face the thermocouple, thereby closing the gas range or allowing the gas range to ignite. The fire-off device of the gas stove of the present invention realizes the function of timing and automatic fire-off of the gas stove through the method of physical hardware, and when the timer timing time is up, the barrier executive component automatically moves so that the flame in the fire hole of the central fire cover cannot burn to the thermocouple When the head and the thermocouple head cannot sense heat, the electromotive force will disappear, the solenoid valve of the gas valve will automatically close, and the gas stove will turn off the flame, which is safer and more reliable.

Description

Fire-off device for gas stove

technical field

The invention belongs to the technical field of gas stoves, and in particular relates to a fire-off device for a gas stove.

Background technique

Gas stoves refer to kitchen utensils heated by direct fire with gaseous fuels such as liquefied petroleum gas, artificial gas, and natural gas. They are also called gas stoves, hobs, stoves, and stoves. According to the gas source, gas stoves are mainly divided into liquefied gas stoves, gas stoves, and natural gas stoves. When the gas stove is working, the gas enters the stove from the intake pipe, and enters the burner after the adjustment of the gas valve (the user adjusts it through the knob), and at the same time mixes a part of the air, and these mixed gases are sprayed out from the fire hole of the fire distributor at the same time. Ignited by the ignition device to form a flame, these flames are used to heat the cookware placed on the pot support. A gas stove is a kitchen appliance that releases heat by burning gas for heating at home.

There are two ignition methods for gas stoves: electronic pulse ignition and piezoelectric ceramic ignition. Consumers are generally familiar with electronic pulse ignition. Most of the ignition devices used in embedded stoves can be turned on to a certain position to ignite. It is very simple and convenient, but this method requires battery replacement. Piezoelectric ceramic ignition is mostly used in desktop stoves, and the biggest advantage is that it does not require batteries. However, the success rate of ignition is related to the ambient humidity, and it is not easy to ignite when the humidity is high. In addition, when igniting, you need to press and hold the switch to ignite, which is not as fast as electronic pulse ignition. Generally, the flameout protection device of the gas stove is very necessary, and the relevant national standards also have mandatory regulations on this. There are three commonly used flameout protection methods in the market, including thermal type, thermoelectric type and photoelectric type.

In order to be more humanized during use, a gas stove with a function of automatically turning off the fire at a fixed time can be designed, so as to have the function of automatically turning off the fire at a fixed time when cooking. Timing gas stoves on the market mostly use electronic timing technology. This implementation method has poor stability. When the back electromotive force is small, the ignition may not be turned off, and when the back electromotive force is large, the electromagnetic valve may be damaged due to excessive electromotive force.

In order to solve the above-mentioned technical problems, there is an urgent need in the art to design a function that can stably realize the automatic shutdown of the gas stove at a fixed time, and is safer and more reliable.

Contents of the invention

In view of the above technical problems, the technical solution of the present invention provides a device for turning off the fire of a gas stove to solve the problem that in the prior art, when the back electromotive force is small, the fire may not be turned off, and when the back electromotive force is large, the electromotive force may be too large to cause Poor stability problems such as solenoid valve damage.

A device for shutting down a gas stove, comprising a timer, a controller, and a barrier execution component, the barrier execution component and the timer are both electrically connected to the controller, and the controller controls the barrier Component action is performed to block or allow the fire hole of the center fire cover of the gas range to face the thermocouple of the gas range, thereby shutting off the gas range or allowing the gas range to ignite.

In one embodiment, the timer is a display timer with a display function, which is used to set and display the timing time of the gas stove burning, and the controller receives the signal of the timer and controls the execution of the barrier The component runs.

In one embodiment, the barrier actuator assembly includes a driving part, the driving part is electrically connected to the controller, the driving part is connected to the central fire cover, and the central fire cover has a fire hole and The fire hole evacuation position, the driving part drives the central fire cover under the control of the controller to align the fire hole with the thermocouple or align the fire hole vacancy position with the thermocouple .

In one embodiment, the driving part drives the central fire cover to rotate under the control of the controller so as to align the fire hole with the thermocouple or align the fire hole with the thermocouple. I.

In one embodiment, the fire hole and the fire hole evacuation are arranged adjacent to each other, and the adjacent fire holes and the fire hole evacuation include multiple groups.

In one embodiment, the driving part has a connecting piece, the end of the connecting piece is provided with a boss, the inner ring of the central fire cover is provided with a concave hole, and the concave hole of the central fire cover is connected with the The bosses of the connecting rods are matched for connection.

In one embodiment, the driving component is a motor.

In one embodiment, a calibration sensor is also included, the calibration sensor is electrically connected to the controller, and the calibration sensor can detect whether the fire hole of the central fire cover is aligned with the thermocouple and transmit the signal to the controller.

In one embodiment, a valve body assembly is included, the valve body assembly has a solenoid valve, and the thermocouple is connected to the solenoid valve.

In one embodiment, it further includes a bottom case on which the valve body assembly, the timer and the controller are installed.

The fire-off device of the gas stove of the present invention realizes the function of timing and automatic fire-off of the gas stove through the method of physical hardware. When the timer timing time is up, the barrier execution component automatically moves so that the flame in the fire hole of the central fire cover cannot burn to the thermocouple. When the head and the thermocouple head can’t feel the heat, the electromotive force will disappear, the solenoid valve of the gas valve will automatically close, and the gas stove will turn off the flame, which is safer and more reliable. The stability of the fire off device is poor. When the back electromotive force is small, the fire may not be turned off. When the back electromotive force is large, the electromotive force may be too large and the solenoid valve may be damaged.

Description of drawings

Hereinafter, the present invention will be described in more detail based on the embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the structure of the gas stove fire-off device of the present invention;

Fig. 2 is a schematic diagram of the disassembled structure of the gas stove fire-off device of the present invention;

Fig. 3 is the structural representation of the central fire cover in the fire-off device of the gas stove of the present invention:

Fig. 4 is a schematic structural view of the drive components in the fire-off device of the gas stove of the present invention;

Fig. 5 is a structural schematic diagram of the fire hole and the thermocouple avoiding position in the fire-off device of the gas stove of the present invention;

Fig. 6 is a structural schematic diagram of the state where the fire hole and the thermocouple are facing each other in the fire-off device for a gas stove according to the present invention.

In the figures, the same parts are given the same reference numerals. The figures are not drawn to scale.

Reference numerals are: 1. Bottom shell; 2. Valve body assembly; 3. Timer; 4. Burner; 5. Controller; 6. Thermocouple; 7. Driving component; Ring fire cover; 403, firearm; 404, burner head; 4011, fire hole; 4012, fire hole avoidance position; 4013, flat concave hole; 701, flat boss.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 1 to 4, the gas stove fire-off device of the present invention is applied to a gas stove, wherein the gas stove includes a bottom shell 1, a valve body assembly 2, a burner 4 and other components, and the gas stove fire-off device includes a timer 3 , controller 5. Bottom case 1 can be used to install valve body assembly 2, timer 3, burner 4, and controller 5; valve body assembly 2 can be used to turn on and off the gas stove and adjust the flame size of the gas stove, and burner 4 is used to output gas and Carry out combustion heating cooking utensil, burner 4 is made up of parts such as burner head 404, fire distributor 403, outer ring fire cover 402, center fire cover 401. A thermocouple 6 is installed at the position of the furnace head 404 of the burner 4, and the thermocouple 6 is connected with the valve body assembly 2, and the thermocouple 6 has the function of sensing flame.

The fire-off device of the gas stove includes a timer 3, a controller 5, and a barrier executive component. Both the barrier executive component and the timer 3 are electrically connected to the controller 5. The fire hole 4011 of the fire cover 401 and the thermocouple 6 are blocked or activated, thereby turning off the gas stove or allowing the gas stove to ignite. The above activation can be understood as the fire hole 4011 of the central fire cover 401 is aligned with the thermocouple 6 without obstruction, Allow the flame in the flame hole 4011 to burn to the thermocouple 6.

The above-mentioned timer 3 is preferably a display timer with a display function. The timer can be used to set and display the timing time of the gas stove. The timer does not have the function of turning off the gas stove, and can set and display the set timing time. The controller 5 is used for controlling the ignition and receiving the information of the timer, and after receiving the information of the timer, controls the operation of the blocking executive component.

As shown in Fig. 2 to Fig. 4, the above-mentioned barrier actuator assembly includes a driving part 7, which can be arranged on the bottom shell 1, and the driving part 7 is electrically connected with the controller 5, and the driving part 7 is connected with the central fire cover 401 , the drive part 7 can drive the center fire cover 401 to rotate, and the center fire cover 401 has a fire hole 4011 and a fire hole evacuation position 4012, and the drive part 7 can drive the center fire cover 401 to rotate to allow the fire hole 4011 to align with the thermocouple 6 or the fire The hole relief 4012 is aligned with the thermocouple 6 .

The above-mentioned driving part 7 has a connecting piece, the end of the connecting piece is provided with a flat boss 701, and the central fire cover 401 is provided with a number of fire holes 4011 and fire hole avoidance positions 4012, and the inner ring of the central fire cover 401 is also provided with a flat position. The concave hole 4013, the flat concave hole 4013 of the inner circle of the central fire cover 401 can be connected with the flat boss 701 at the top of the connecting rod of the driving part 7 to complete the insertion and installation. The drive part 7 can be a motor or other existing rotary drive devices. The fire hole 4011 on the central fire cover 401 and the fire hole evacuation position 4012 are adjacently arranged and preferably include multiple groups, so that when the driving part 7 drives the central fire cover 401 to rotate, the central fire cover of the gas stove can be made in multiple positions. The fire hole and the thermocouple of the gas stove are blocked or the fire hole of the central fire cover is allowed to face the thermocouple.

In addition, the fire-off device of the gas stove also includes a calibration sensor, which is electrically connected to the controller. The calibration sensor can detect whether the fire hole 4011 of the central fire cover 401 is aligned with the thermocouple 6, and transmits the signal to the controller to control The detector performs alignment and calibration of the fire hole 4011 and the thermocouple 6 according to the signal of the calibration sensor.

When in use, the user operates the valve body assembly 2, the controller 5 discharges and ignites the burner 4, and in the normal combustion state, the user manipulates the timer to set the combustion time of the gas stove. Since the timer 3 and the controller 5 have a communication connection function, when When the combustion time of the gas stove reaches the time set by the timer 3, the timer 3 transmits information to the controller 5, and the driving part 7 is electrically connected to the controller 5, and the controller 5 controls the driving part 7 to move in the first direction (for example, along the Clockwise direction) rotates according to the set angle, and the flat concave hole 4013 of the inner ring of the central fire cover 401 is connected with the flat boss 701 at the end of the connector of the driving part 7, so that the driving part 7 drives the central fire cover 401 at the first Rotate in one direction (for example, clockwise) according to the set angle, so that the fire hole evacuation position 4012 is set opposite to the thermocouple 6 (as shown in Figure 5), and the flame of the fire hole 4011 in the central fire cover cannot burn to the thermocouple 6 If the thermocouple cannot sense the flame, the electromotive force of the thermocouple 6 will disappear, that is, the electric energy generated by the heat energy will disappear, and the solenoid valve cannot be kept open. If the solenoid valve cannot be kept open, the gas channel of the valve body assembly 2 will be cut off , so as to automatically cut off the gas path and turn off the flame. Thus, the purpose of automatically turning off the flame and turning off the gas stove after the set time is reached is realized.

After the flame is turned off, the controller 5 controls the driving part 7 to rotate at a set angle in the second direction (for example, counterclockwise). After it is detected that the flame is off, the control driving part is started to rotate at the same angle in the second direction, so that the ignition can be successful when the ignition is allowed again. Similarly, during this process, the driving part 7 drives the central fire cover 401 to rotate a set angle in the second direction, for example, a reverse angle of the same size as the first direction, and at this time the fire hole 4011 of the central fire cover 401 Just opposite to the head of the thermocouple 6 (as shown in Figure 6), the flame from the fire hole 4011 can burn to the head of the thermocouple 6, and the thermocouple 6 can sense the flame, and the gas stove can burn normally when it is ignited again .

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. The utility model provides a gas-cooker closes fiery device, its characterized in that includes timer, controller and separates and keeps off the executive component, separate keep off the executive component with the timer all with controller electric connection, the controller control separate keep off the executive component action with separate the fire hole of the central burner cap of gas-cooker with the thermocouple of gas-cooker or allow the fire hole of central burner cap and thermocouple just right to close the gas-cooker or allow the gas-cooker ignition.

2. The fire shutting apparatus for gas range as claimed in claim 1, wherein the timer is a display timer with display function for setting and displaying the timing time of the combustion of the gas range, and the controller receives the signal of the timer and controls the operation of the blocking performing assembly.

3. The gas stove fire-shutting device according to claim 1 or 2, wherein the partition actuating assembly comprises a driving part, the driving part is electrically connected with the controller, the driving part is connected with the central fire cover, the central fire cover is provided with a fire hole and a fire hole avoiding space, and the driving part drives the central fire cover to act under the control of the controller to align the fire hole with the thermocouple or align the fire hole avoiding space with the thermocouple.

4. The gas range fire shutting device of claim 3, wherein the driving part drives the center fire cover to rotate under the control of the controller to align the fire hole with the thermocouple or align the fire hole with the thermocouple while avoiding a vacancy.

5. The gas stove fire-shutting device according to claim 3, wherein the fire holes are disposed adjacent to the fire hole clearance, and the fire holes and the fire hole clearance disposed adjacent to each other comprise a plurality of groups.

6. The fire shutting device for the gas stove as claimed in claim 3, wherein the driving part has a connecting member, a boss is provided at an end of the connecting member, a concave hole is provided at an inner ring of the central fire cover, and the concave hole of the central fire cover is fittingly connected with the boss of the connecting rod.

7. The gas range fire shutting device of claim 3, wherein the driving means is a motor.

8. The gas range fire shutting device of claim 1 or 2, further comprising a calibration sensor electrically connected to the controller, the calibration sensor being capable of detecting whether the fire hole of the center fire cover is aligned with the thermocouple and transmitting a signal to the controller.

9. The gas range fire shutting device according to claim 1 or 2, comprising a valve body assembly having a solenoid valve, the thermocouple being connected to the solenoid valve.

10. The gas range fire shutting device of claim 9, further comprising a bottom case, wherein the valve body assembly, the timer and the controller are all mounted on the bottom case.

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