TWM580162U - Ignition safety device for gas stove - Google Patents

Abstract

An ignition safety device for a gas furnace, comprising: a gas switch group, an ignition device and a safety device, the safety device is connected between the electromagnetic valve of the gas switch group and the ignition device, and the thermocouples are sequentially arranged At the preset position of the gas burner, as the heat sensing use, when used for firing, it can be heated and control the solenoid valve to form a normally open state, to achieve a continuous and smooth gas supply, when the flame is extinguished for some reason, The thermocouple will lose its heated temperature and leave the control solenoid valve. At this time, the solenoid valve will close the gas passage to prevent the gas from burning normally and diffuse into the house, which greatly enhances the safety of the gas stove and increases the consumer. Willingness to buy.

Description

Gas furnace ignition safety device

This creation relates to a safety device, especially an ignition safety device for a gas furnace.

According to the gas stove, it is an indispensable daily tool for modern people. It brings great convenience to people. However, it is also very easy to cause serious dangers such as explosion, fire or gas poisoning when used. Statistics show that accidents occur when gas burners are used. The main reason is that in addition to the user's careless operation, 90% of the fires are caused by various internal and external factors, resulting in unstable gas combustion flames. Produce floating fire, flying fire, tempering) or extinguished (burned out by the wind, poured out of the soup), and this unexpected flameout situation is sometimes not noticed by the user, so that the gas will not be shut down, causing gas Spillage, poisoning or causing explosions and fires is a problem that needs to be improved in the current gas furnace.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the author has finally achieved a practical and practical creation.

The technical problem to be solved by the present invention is to provide an ignition safety device for a gas furnace in view of the above-mentioned shortcomings existing in the prior art.

An ignition safety device for a gas furnace, comprising: a gas switch group, an ignition device and a safety device, the gas switch group having a rotary switch, a solenoid valve and a gas output, the rotary opening relationship controlling the The ignition device is activated, and the amount of gas discharged from the gas output end is adjusted, and the output and the off state of the gas output end are controlled by the solenoid valve, and the safety device is connected between the electromagnetic valve and the ignition device, and has at least two thermocouples And the thermocouple is disposed at a preset position of a gas burner, and the temperature of the preset position of the gas burner is sensed through the thermocouples, thereby serving as a safety basis for the electromagnetic valve to close the gas output end.

Preferably, the ignition device has a firing member, a gas exhausting end and a thermoelectric sensing member. One end of the thermoelectric sensing member is provided with a first wire connected to the electromagnetic valve, and the other end is provided with a second wire and The safety device is connected, and the safety device is connected to the electromagnetic valve by a third wire, thereby forming a sensing circuit.

Preferably, the safety device has three such thermocouples.

Preferably, the safety device connects the thermocouples in series, and is connected between the ignition device and the electromagnetic valve via the second and third wires.

Preferably, the safety device sequentially connects the thermocouples to the second and third wires in a parallel manner.

According to the effect of the prior art: the safety device is connected between the electromagnetic valve and the ignition device, and the thermocouples are sequentially disposed at a preset position of the gas burner, and used as a heat sensing, when fired, It can be heated and control the solenoid valve to form a normally open state, and achieve a continuous and smooth gas supply. When the flame is extinguished for some reason, the thermocouples will lose the heated temperature and leave the control solenoid valve. At this time, the solenoid valve will be Close the gas passage to prevent the gas from burning normally and diffuse into the house, which greatly enhances the work safety of the gas stove and increases consumption. The willingness to purchase.

10‧‧‧ gas switch group

11‧‧‧Rotary switch

12‧‧‧ solenoid valve

13‧‧‧ gas output

20‧‧‧Ignition device

21‧‧‧Ignition parts

22‧‧‧ gas exhaust end

23‧‧‧Thermal sensing parts

231‧‧‧First wire

232‧‧‧second wire

30‧‧‧Safety devices

31‧‧‧ Third wire

32‧‧‧ thermocouple

40‧‧‧ gas burner

Figure 1: This is a perspective view of the creation.

Figure 2: This is a side view of the creation.

Figure 3: This is a top view of the creation.

Figure 4: Schematic diagram of the parallel state of the safety device of this creation.

Fig. 5 is a schematic view showing the safety device of the present invention having three thermocouples connected in series.

Fig. 6 is a schematic view showing the safety device of the present invention having three thermocouples connected in parallel.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [simplified description of the drawings] as follows: First, please refer to Figures 1, 2 and 3 An ignition safety device for a gas furnace, comprising: a gas switch group 10, an ignition device 20 and a safety device 30, the gas switch group 10 has a rotary switch 11, a solenoid valve 12 and a gas output 13. The rotary switch 11 controls the activation of the ignition device 20, and adjusts the amount of gas discharged from the gas output terminal 13, and controls the output and the off state of the gas output terminal 13 with the electromagnetic valve 12, the ignition device 20 has An ignition member 21, a gas exhausting end 22, and a pyroelectric sensing member 23, one end of the thermoelectric sensing member 23 is connected to the electromagnetic valve 12, and the other end is provided with a second wire 232 and the The safety device 30 is connected, and the safety device 30 is connected to the electromagnetic valve 12 by a third wire 31, whereby the safety device 30 is Connected between the electromagnetic valve 12 and the ignition device 20, and constitute a sensing circuit, the safety device 30 has at least two thermocouples 32, and the thermocouple 32 is disposed at a preset position of a gas burner 40, especially It is the fire ring seat of the gas burner 40, and the temperature of the preset position of the gas burner 40 is sensed through the thermocouples 32, thereby serving as a safety basis for the solenoid valve 12 to close the gas output end 13.

The safety device 30 is connected to the thermocouples 32 in series, and is connected between the ignition device 20 and the electromagnetic valve 12 via the second and third wires 232 and 31.

The safety device 30 sequentially connects the thermocouples 32 to the second and third wires 232, 31 in parallel, as shown in FIG.

The safety device 30 has three thermocouples 32, and may be connected between the ignition device 20 and the solenoid valve 12 in series or in parallel, as shown in Figs.

The actual use of the structure, please refer to the second and third figures. When the user presses and rotates the rotary switch 11 of the gas switch group 10, the solenoid valve 12 will be forced to open the gas from the gas. The gas terminal 22 outputs and simultaneously emits an ignition signal to cause the ignition member 21 to generate an electric spark, and the ignition combustion generates a flame. Since the ignition device 20 is further provided with a pyroelectric sensing member 23, the flame generated by the gas contact ignition is directly injected. The thermoelectric sensing element 23 can perform the function of exchanging heat and electric energy through the thermoelectric sensing element 23, and generates a signal transmitted from the first wire 231 to the electromagnetic valve 12, and the electromagnetic coil inside the electromagnetic valve 12 forms an exciting current. The magnetic force is generated, so that the valve piece for controlling the gas opening and closing inside the electromagnetic valve 12 is adsorbed to form an open state, and the gas is supplied from the gas output terminal 13 to the gas burner head 40 to achieve a continuous combustion and fire state, and the safety device 30 is Connected between the solenoid valve 12 and the pyroelectric sensing member 23 of the ignition device 20, the pyroelectric sensing member 23 is heated to transmit the signal to the solenoid valve 12, and the ignition source is the ignition device 2. 0 is switched to the gas output 13 for continuous output, so that the thermocouple 32 provided at the appropriate position of the gas burner 40 can continuously receive thermal energy. And the thermoelectric conversion generating signal is continuously transmitted to the electromagnetic valve 12, so that the electromagnetic valve 12 continuously generates a magnetic force to adsorb the valve piece, so that the gas output end 13 continuously and smoothly supplies the gas to the burner head 40, and the gas burner is continuously fired. State until the rotary switch 11 of the gas switch group 10 closes the valve of the interlocking solenoid valve 12 to close.

In addition, the thermocouple 32 of the safety device 30 is also heated as a basis for controlling the continuous opening of the solenoid valve 12 to discharge the gas. If the flame is extinguished due to boiling of the liquid in the boiling cooking process, the thermocouple 32 is extinguished at this time. That is, the thermal induction of the flame is lost, and the signal between the solenoid valve 12 is cut off. At this time, the solenoid valve 12 关闭 will close the gas passage through the valve plate to avoid continuous leakage of gas, thereby avoiding waste of gas, and more Preventing the danger of gas poisoning or explosion fires in the house, greatly improving the safety of gas oven cooking.

With the structure of the above specific embodiment, the following benefits can be obtained: the safety device 30 is connected between the electromagnetic valve 12 and the ignition device 20, and the thermocouples 32 are sequentially disposed in the preset of the gas burner 40. At the position, it is used as the heat sensing. When it is used for fire, it can be heated and control the solenoid valve 13 to form a normally open state, and a continuous and smooth gas supply is obtained. When the flame is extinguished for some reason, the thermocouples 32 lose heat. The temperature is out of the state of the control solenoid valve 13. At this time, the solenoid valve 13 turns off the gas passage, prevents the gas from burning normally and diffuses into the house, greatly enhances the work safety of the gas furnace, and increases the purchase intention of the consumer. .

In summary, this creation has indeed achieved a breakthrough structural design, with improved creative content, while at the same time achieving industrial use and progress, and this creation has not been seen in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for the creation of a patent shall be filed according to law, and the examination of the member of the Bureau shall be granted a legal patent right.

Only the above description is only a preferred embodiment of the present invention, and cannot be limited thereto. The scope of creation and implementation; that is, the equal changes and modifications made by Dafan in accordance with the scope of patent application for this creation shall remain within the scope of this creation patent.

Claims (5)

An ignition safety device for a gas furnace, comprising: a gas switch group, an ignition device and a safety device, the gas switch group having a rotary switch, a solenoid valve and a gas output, the rotary opening relationship controlling the The ignition device is activated, and the amount of gas discharged from the gas output end is adjusted, and the output and the off state of the gas output end are controlled by the solenoid valve, and the safety device is connected between the electromagnetic valve and the ignition device, and has at least two thermocouples And the thermocouple is disposed at a preset position of a gas burner, and the temperature of the preset position of the gas burner is sensed through the thermocouples, thereby serving as a safety basis for the electromagnetic valve to close the gas output end. The ignition safety device for a gas stove according to claim 1, wherein the ignition device has a ignition member, a gas exhaust end, and a pyroelectric sensing member, and the first end of the thermoelectric sensing member is provided with a first wire and The solenoid valve is connected, and the other end is provided with a second wire connected to the safety device, and the safety device is connected to the solenoid valve by a third wire, thereby forming a sensing circuit. The ignition safety device for a gas burner according to claim 1, wherein the safety device has three thermocouples. The ignition safety device for a gas furnace according to claim 1, wherein the safety device connects the thermocouples in series, and is connected between the ignition device and the electromagnetic valve via the second and third wires. . The ignition safety device for a gas furnace according to claim 1, wherein the safety device sequentially connects the thermocouples to the second and third wires in a parallel manner.