TWM638815U - Automatic flameout gas stove safety device - Google Patents

Abstract

The invention provides a safety device for automatically extinguishing a gas stove, which includes: a central processing unit; a detection voltage unit, which receives an input voltage and generates a voltage detection signal to the central processing unit; a fire detection unit, the ignition detection unit judges the activation of a control switch and generates an activation signal to the central processing unit, and the central processing unit generates a control signal from the activation signal and the voltage detection signal; and a solenoid valve control unit, the solenoid valve control unit receives the control signal and controls a solenoid valve to open, and when the input voltage is abnormal, the central processing unit generates a voltage abnormality signal to the solenoid valve control unit, the The magnetic valve control unit controls a switch module by the abnormal voltage signal, and the switch module controls the solenoid valve to close, so that the automatic flame-off gas stove safety device can achieve the function of automatic flame-off when the voltage is too low or no voltage output.

Description

Automatic flameout gas stove safety device

This work is about a gas stove, especially an automatic flameout gas stove safety device that can automatically turn off the flame when the voltage is abnormal, and can be turned off at a fixed time and the flameout time can be adjusted, and has the functions of rapid ignition, low voltage reminder and self-test.

In today's various families, almost every household has a gas stove. The gas stove is the main tool for cooking food in the kitchen. It can heat and boil water or stew food. Although the gas stove can bring people delicious dishes, but the gas The stove is also very likely to be the ignition point of the fire. Since the gas stove uses the method of burning gas to emit flames for cooking, it is relatively more careful to use. If you do not pay attention when using it, be prepared for safety protection , the gas stove is very easy to dry the liquid in the pot, and there is a dangerous situation of empty burning, or because the fire is extinguished by the overflowing liquid, the gas leaks out, forming a source of disaster. Gas stoves use the thermocouple of the solenoid valve to sense the heat generated by the heat of the fire to control the opening and closing of the solenoid valve, so that the solenoid valve is opened when the fire is burning, and the solenoid valve is closed when the fire is not burning. , and then prevent gas leakage, causing poisoning, fire and other dangerous situations, as a safety mechanism for gas stoves, and most of the general gas stoves are manually controlled, that is, the user twists the control switch to control the ignition of the burner or Turn off the flame, so some gas stoves are equipped with a microcomputer to control the flameout of the burner at regular intervals, but the cost of setting up the microcomputer is relatively high, and when the gas stove is ignited, it needs to be controlled by the heat to open the solenoid valve to achieve ignition, resulting in It also takes a little time to ignite, and it cannot achieve rapid ignition. Moreover, when using a general gas stove, there will be problems such as failure to ignite or failure or insufficient power, and the thermocouple or solenoid valve of the gas stove is also used. The possibility of failure or damage may occur, but the general user cannot know where the problem occurs through operation, and it will also cause safety concerns, especially when the battery of the gas stove is insufficient or the battery is dropped. The safety mechanism of the gas stove will also fail to operate due to lack of electricity, which will cause danger in use.

Therefore, in order to effectively solve the above-mentioned problems, the main purpose of this creation is to provide a safety device for automatic flameout gas stoves that can automatically extinguish the flame when the voltage is abnormal, and can be automatically extinguished and the flameout time can be adjusted.

Another purpose of this creation is to have the safety device of automatic flameout gas stove with fast ignition and low voltage reminding and self-testing function.

In order to achieve the above purpose, the invention provides a safety device for automatically extinguishing a gas stove, which includes: a central processing unit; a detection voltage unit, the detection voltage unit is electrically connected to the central processing unit, and the detection voltage The unit receives an input voltage and detects the input voltage to generate a voltage detection signal, and the detection voltage unit transmits the input voltage and the voltage detection signal to the central processing unit; an ignition detection unit, the The ignition detection unit is electrically connected to the central processing unit, and the ignition detection unit judges the activation of a control switch to generate an activation signal to the central processing unit, and the central processing unit combines the activation signal and the The voltage detection signal generates a control signal and controls an ignition unit; and a magnetic valve control unit, the magnetic valve control unit is electrically connected to the central processing unit and receives the control signal, and the magnetic valve control unit is controlled by the The signal controls an electromagnetic valve to open, and when the input voltage is abnormal, the central processing unit generates an abnormal voltage signal to the magnetic valve control unit, and the magnetic valve control unit controls a switching module by the abnormal voltage signal, the switching The module controls the solenoid valve to close.

According to an embodiment of the automatic flameout gas furnace safety device of the present invention, the central processing unit judges that the voltage of the voltage detection signal is too low and there is no voltage output to generate the abnormal voltage signal.

According to an embodiment of the automatic flameout gas furnace safety device of the present invention, when the central processing unit judges that the voltage detection signal is a normal voltage, the solenoid valve control unit controls the solenoid valve to open through the control signal.

According to an embodiment of the automatic flameout gas furnace safety device of the present invention, it further includes a booster unit, which is electrically connected to the detection voltage unit and the central processing unit, and the booster unit receives the input voltage and A working voltage is generated and transmitted to the central processing unit.

According to one embodiment of the automatic flameout gas furnace safety device of the present invention, it further includes a timing unit, the timing unit is electrically connected to the central processing unit, and the timing unit generates a time setting signal to the central processing unit, The control module of the central processing unit generates the control signal to the solenoid valve control unit to control the closure of the solenoid valve.

According to an embodiment of the automatic flameout gas furnace safety device of the present invention, the timing unit has at least one setting element, which sets the automatic flameout time of the timing unit and generates the time setting signal.

According to an embodiment of the automatic flameout gas furnace safety device of the present invention, the timing unit has at least one display element.

According to an embodiment of the safety device for automatically extinguishing a gas stove in the present invention, it further includes a battery unit, the battery unit is electrically connected to the detection voltage unit, and the detection voltage unit receives the input voltage of the battery unit.

According to an embodiment of the safety device for automatically extinguishing a gas stove in the present invention, at least one rotary switch is electrically connected to the control switch.

The above-mentioned purpose of this creation and its structural and functional characteristics will be described according to the preferred embodiments of the accompanying drawings.

In the following, for the composition and technical content of the automatic extinguishing gas furnace safety device of this creation, various applicable examples are listed and explained in detail with reference to the accompanying drawings; however, this creation is certainly not limited to the listed ones. These embodiments, drawings, or detailed descriptions are just for reference.

Furthermore, those who are familiar with this technology should also be clear: the enumerated embodiments and the attached drawings are only for reference and description, and are not used to limit the creation; Creations completed through modifications or changes are also deemed to be within the scope of the spirit and intent of this creation, and of course such creations are also included in the scope of patent applications for this creation.

In addition, the directional terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", "front", "rear", etc., are only referring to the directions attached to the drawings. Therefore, the used directional terms are used for illustration, not for limiting the invention; moreover, in the following embodiments, the same or similar elements will use the same or similar element numbers.

First of all, referring to Figure 1, it is a schematic block diagram of the automatic flameout gas stove safety device of this invention, wherein the automatic flameout gas stove safety device 1 mainly includes a central processing unit 10 and a detection voltage unit 11 and an ignition The detection unit 12 and a magnetic valve control unit 13 .

Wherein the central processing unit 10 is electrically connected to the detection voltage unit 11 and the ignition detection unit 12 and the solenoid valve control unit 13, and the detection voltage unit 11 is also electrically connected to a battery unit 14 and a Boost unit 15, the boost unit 15 is electrically connected to the central processing unit 10 at the same time, and the ignition detection unit 12 is also electrically connected to a control switch 121, the control switch 121 is rotated by at least one knob switch 122 In addition, the solenoid valve control unit 13 includes at least one solenoid valve 131 and at least one switching module 132 .

Wherein the automatic flameout gas stove safety device 1 further includes an ignition unit 16 and a timing unit 17, the ignition unit 16 is electrically connected to the central processing unit 10, and the timing unit 17 is electrically connected to the central processing unit 10 and At least one setting element 171 and at least one display element 172 are provided.

Please also refer to Figure 2, which is a schematic diagram of the block implementation of the normal voltage of the automatic flame-out gas stove safety device of this invention, wherein when the automatic flame-out gas stove safety device 1 is about to be ignited quickly, the knob switch 122 can be manipulated To activate the control switch 121, when the control switch 121 is activated, the ignition detection unit 12 judges the activation of the control switch 121 to generate an activation signal S2, and the ignition detection unit 12 transmits the activation signal S2 to the The central processing unit 10, and the automatic flameout gas furnace safety device 1 transmits an input voltage V1 to the detection voltage unit 11 through the battery unit 14, when the voltage detection unit receives the input voltage V1, the The detection voltage unit 11 detects the input voltage V1 and generates a voltage detection signal S1, and the detection voltage unit 11 transmits the input voltage V1 and the voltage detection signal S1 to the CPU 10 , and the central processing unit 10 judges whether the voltage detection signal S1 is a normal voltage, and if it is a normal voltage, the central processing unit 10 generates a control signal S3 through the activation signal S2 and the voltage detection signal S1, And the central processing unit 10 controls the ignition unit 16 to ignite by the control signal S3, and at the same time the central processing unit 10 transmits the control signal S3 to the magnetic valve control unit 13, and the magnetic valve control unit 13 The solenoid valve 131 is controlled by the control signal S3 to open and let the gas pass through, so that the automatic extinguishing gas stove safety device 1 can achieve the function of quick ignition.

When the central processing unit 10 judges that the voltage detection signal S1 is a normal voltage, the central processing unit 10 transmits the voltage detection signal S1 to the display element 172 of the timing unit 17, so that the display element 172 Display a light source with normal voltage to indicate to the user that the input voltage V1 is normal.

Please also refer to Figure 3, which is a schematic block diagram of the abnormal voltage of the automatic flameout gas furnace safety device of this invention, wherein the detection voltage unit 11 receives the input voltage V1 and generates the voltage detection signal S1, And the detection voltage unit 11 transmits the input voltage V1 and the voltage detection signal S1 to the central processing unit 10, and the central processing unit 10 judges whether the voltage detection signal S1 is a normal voltage, and if it is abnormal voltage, the central processing unit 10 generates an abnormal voltage signal S4 and transmits it to the magnetic valve control unit 13, and the magnetic valve control unit 13 controls the switching module 132 by the abnormal voltage signal S4, and the switching module 132 generates Open the circuit and control the degaussing and closing of the solenoid valve 131 to stop the passage of gas, and then make the automatic flameout gas stove safety device 1 reach the effect of automatic flameout when the voltage is too low and there is no voltage output.

In addition, when the central processing unit 10 determines that the voltage detection signal S1 is an abnormal voltage, the central processing unit 10 transmits the abnormal voltage signal S4 to the display element 172 of the timing unit 17, so that the display element 172 displays LL The light source is used to indicate to the user that the input voltage V1 is too low, so that the automatic flameout gas stove safety device 1 achieves the function of low voltage reminder, and the booster unit 15 receives the input voltage V1 and the voltage detection signal S1 Afterwards, the input voltage V1 is increased to generate an operating voltage V2, and the operating voltage V2 is transmitted to the central processing unit 10, so that the central processing unit 10 has an operating voltage V2 capable of maintaining normal operation.

In addition, the automatic extinguishing gas furnace safety device 1 can generate a time setting signal S5 through the timing unit 17, and the time setting signal S5 is transmitted to the central processing unit 10, and the central processing unit 10 is set via the time setting signal S5. The signal S5 generates the control signal S3 to the solenoid valve control unit 13, and controls the solenoid valve 131 to close through the solenoid valve control unit 13, so that the automatic flameout safety device of the gas stove can achieve the function of timing flameout, and Wherein the display element 172 on the timing unit 17 will display the countdown time of the central processing unit 10 to inform the user of the remaining time, and the user can also use the setting element 171 on the timing unit 17 to Set the automatic flameout time and generate the time setting signal S5, so that the automatic flameout safety device of the gas stove can achieve the function of timing flameout and adjusting the flameout time.

In addition, when the automatic extinguishing gas furnace safety device 1 wants to perform self-test, the control switch 121 can be controlled by turning on the two knob switches 122 at the same time, and when the ignition detection unit 12 detects that the control switches 121 are activated at the same time, they will respectively The activation signal S2 is generated and transmitted to the central processing unit 10, the central processing unit 10 converts the activation signal S2 to generate the control signal S3, and the central processing unit 10 directly transmits the control signal S3 to the central processing unit 10. The solenoid valve control unit 13 is ignited, and when the ignition detection unit 12 detects that its two knobs are turned on at the same time, it is converted into a self-test mode, and its self-test mode is to ignite simultaneously at the furnace mouth on both sides and separately Combustion means that the automatic flameout gas stove safety device 1 is detected to be normal, and after five seconds of combustion at the two furnace mouths, the magnetic valve control unit 13 will control the solenoid valve 131 to close respectively, and the display element 172 will display Its normal light originally indicates the user that its automatic flameout gas stove safety device 1 detects normally, and then makes this automatic flameout gas stove safety device 1 reach the effect of self-testing function.

The above has made a detailed description of this creation, but the above is only one of the preferred embodiments of this creation, and should not limit the scope of implementation of this creation, that is, all equal changes and modifications made according to the scope of application of this creation etc., should still be covered by the patent of this creation.

1: Automatic flameout gas stove safety device 10: CPU 11: Detection voltage unit 12: Ignition detection unit 121: Control switch 122: Knob switch 13: Magnetic valve control unit 131: Solenoid valve 132: switch module 14: Battery unit 15: Boost unit 16: Ignition unit 17: Timing unit 171: Setting components 172: Display components V1: input voltage V2: working voltage S1: voltage detection signal S2: start signal S3: Control signal S4: abnormal voltage signal S5: Time setting signal

Fig. 1 is the block schematic diagram of the automatic flameout gas stove safety device of this creation. Fig. 2 is a block implementation schematic diagram of the normal voltage of the automatic flameout gas stove safety device of this creation. Figure 3 is a schematic diagram of the block implementation of the abnormal voltage of the automatic flameout gas stove safety device of this creation.

1: Automatic flameout gas stove safety device

10: CPU

11: Detection voltage unit

12: Ignition detection unit

121: Control switch

122: Knob switch

13: Magnetic valve control unit

131: Solenoid valve

132: switch module

14: Battery unit

15: Boost unit

16: Ignition unit

17: Timing unit

171: Setting components

172: Display components

Claims (9)

A safety device for an automatic flameout gas stove, comprising: a central processing unit; A detection voltage unit, the detection voltage unit is electrically connected to the central processing unit, and the detection voltage unit receives an input voltage and detects the input voltage to generate a voltage detection signal, and the detection voltage unit transmitting the input voltage and the voltage detection signal to the central processing unit; An ignition detection unit, the ignition detection unit is electrically connected to the central processing unit, and the ignition detection unit judges the activation of a control switch to generate an activation signal to the central processing unit, and the central processing unit is controlled by The activation signal and the voltage detection signal generate a control signal and control an ignition unit; and A solenoid valve control unit, the solenoid valve control unit is electrically connected to the central processing unit and receives the control signal, and the solenoid valve control unit is controlled by the control signal to open a solenoid valve, and when the input voltage is abnormal, The central processing unit generates an abnormal voltage signal to the magnetic valve control unit, and the magnetic valve control unit controls a switching module according to the abnormal voltage signal, and the switching module controls the solenoid valve to close. The automatic flameout gas furnace safety device according to claim 1, wherein the central processing unit judges that the voltage of the voltage detection signal is too low and there is no voltage output to generate the abnormal voltage signal. The automatic flameout gas furnace safety device according to claim 1, wherein when the central processing unit judges that the voltage detection signal is a normal voltage, the solenoid valve control unit controls the solenoid valve to open through the control signal. The automatic extinguishing gas furnace safety device as described in Claim 1 further includes a booster unit, the booster unit is electrically connected to the detection voltage unit and the central processing unit, and the booster unit receives the input voltage and A working voltage is generated and transmitted to the central processing unit. The automatic extinguishing gas furnace safety device as described in claim 1 further includes a timing unit, the timing unit is electrically connected to the central processing unit, and the timing unit generates a time setting signal to the central processing unit, The control module of the central processing unit generates the control signal to the solenoid valve control unit to control the closure of the solenoid valve. The automatic flameout gas furnace safety device as described in Claim 5, wherein the timing unit has at least one setting element, and the setting element is used to set the automatic flameout time of the timing unit and generate the time setting signal. The automatic flameout gas furnace safety device according to claim 5, wherein the timing unit has at least one display element. The automatic flameout gas stove safety device as described in Claim 1 further includes a battery unit, the battery unit is electrically connected to the detection voltage unit, and the detection voltage unit receives the input voltage of the battery unit. The automatic flameout gas furnace safety device as described in Claim 1 further includes at least one rotary switch electrically connected to the control switch.

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