CN2058236U

CN2058236U - Automatic reigniter used in combustion gas flame failure

Info

Publication number: CN2058236U
Application number: CN 89211789
Authority: CN
Inventors: 陈自求
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-11-01
Filing date: 1989-11-01
Publication date: 1990-06-13

Abstract

The utility model discloses a reigniting device used in combustion-gas flame-failure, compose of a flame-monitoring switch and an igniting device. In the process of cooking, on the occasion of a flame-failure of a cooking range caused by an accidental reason, the combustion-gas overflows without interruption, easily resulting in an accident. With the utility model, on the occasion of the flame-failure of the cooking range, the temperature drops, a movable contact 1 is shrunk with cold and is tightly contacted with a fixed contact 2, wherein, at the interval of generating a high-voltage pulse to break through an electric discharge electrode, an electric igniter emits flames which reignite the combustion-gas resulting in the re-ignition of the cooking range. The utility model can also ignite automatically.

Description

Automatic reigniter used in combustion gas flame failure

The utility model relates to a kind of flame-out resume combustion device that is used for gas kitchen ranges, water heater or other gas appliance.

General liquefied petroleum gas of present high-grade kitchen range or coal gas, turning on burnt gas switch can light a fire automatically and cook, in cooking process, not only fry in shallow oil, fry, also have and steam, stewing, braised, it is little call for fire such as to boil, the characteristics that time requirement is long, the party is during away from cooking stove, because accidental cause: pot water is excessive, wind, flame jump etc. makes cooking stove flame-out, though at this moment naked light extinguishes, combustion gas is still constantly excessive, as surpassing margin of safety, blasts, poison, incident on fire often has what is heard, existing automatic ignition device, can only light a fire, can not realize the flame-out automatic resume combustion of cooking stove, can not get rid of flame-out hidden danger.

The purpose of this utility model is to overcome defective of the prior art and a kind of novel combustion gas resume combustion device that stops working is provided.

For realizing this purpose, the flame-out resume combustion device of combustion gas is made up of flame monitoring switch and igniter.

The flame monitoring switch has movable contact 1 and fixed contact 2, and movable contact 1 is to be made of two kinds of different bimetal leafs of material, and fixed contact 2 is to be made by monometallic;

Igniter is to adopt arc ignition, is made up of high pressure generator 3 and electric spark clearance 4.

Now in conjunction with the accompanying drawings the utility model is made detailed description:

Fig. 1 is a section of structure of the present utility model.

Fig. 2 is a circuit diagram of the present utility model.

The flame monitoring switch is made up of movable contact 1 and fixed contact 2, movable contact 1 is that the bimetal leaf by two kinds of materials and the different coefficients of expansion consists of, available copper and constant volume alloy rolling form, the good monometallic of fixed contact 2 usefulness conduction is made, in the utility model, fixed contact 2 possesses again the effect of fixed mount, namely be to be used as fixed contact 2 with the fixed mount of flame-out resume combustion device, movable contact 1 and fixed contact 2 are contained near the kitchen range head, temperature height during the cooking stove burning, and movable contact 1 temperature distortion outwards flicks, leave fixed contact 2, drop in temperature after flame-out, movable contact 1 restores to the original state, near fixed contact 2.

The flame monitoring switch also can be made with temperature control tube, can also make with thermistor.

Igniter is to adopt arc ignition, is made up of high pressure generator 3 and electric spark clearance 4, switch 5, steel pipe 6.

During use, the plugged that earlier switch 5 closed, when kitchen range are flame-out, drop in temperature, movable contact 1 shrinkage and fixed contact 2 near, the high-voltage generator circuit connection causes transformer B₁Left side circuit produces vibration, carries out to the positive feedback process snowslide, simultaneously transformer B₁Secondary coil produces the recoil electromotive force, makes its right diode 2CTS, controllable silicon 3CT1A conducting, transformer B₂Produce high-voltage pulse, 2～3 times/second blue look flame appears in the gap of disruptive discharge electrode, lights combustion gas, after lighting, and the flame monitoring K switch₂Open circuit, flame-out resume combustion device quits work.

Electric spark clearance 4 is to be made of copper wire or steel wire and steel pipe 6.

The effect of switch 5 is to cooperate flame monitoring switch control power supply, closes a switch 5 when using kitchen range, and the time spent does not disconnect.

Igniter can also be used mechanisms such as piezoelectric ceramics, heating wire or mechanical friction.The burning-point ability that the temperature that every kind of igniter produced must surpass combustion gas is effective.Must there be simultaneously corresponding flame monitoring switch to cooperate.

The utlity model has volume little, save electric energy, cost is low, making is simple, characteristics such as esy to use, safe and reliable.

Embodiment: movable contact 1 adopts copper and steel to make, and fixed contact 2 is made of copper, and adopts 1.5V dry cell one joint to do electric energy, and high pressure generator has 1 of 3A * 31 transistors, 2CTS, 2 of 2CZ82 diodes, 1 of 3CT1A controllable silicon, transformer B ₁, B ₂Each 1, each 1 of 51M Ω, 100 Ω resistance, each 1 of 1 μ F/160V, 0.1 μ F/63V electric capacity, steel pipe 6 adopts the stainless steel tube of 5 millimeters of bores to make, and the steel wire that disposes 1 millimeter of diameter in the pipe forms electric spark clearance 4 as another utmost point, works as K ₁, K ₂The back entire circuit of closing is owing to vibrate, and the recoil electromotive force obtains about 10,000 volts high-voltage pulse at last, the spark gap discharge, and 2～3 sparks of per second are lighted combustion gas.

Claims

1, the flame-out resume combustion device of a kind of combustion gas is made up of flame monitoring switch and igniter, it is characterized in that:

A, flame monitoring switch have movable contact 1 and fixed contact 2, and movable contact 1 is to be made of two kinds of different bimetal leafs of material, and fixed contact 2 is to be made by monometallic;

B, igniter are to adopt arc ignition, are made up of high pressure generator and electric spark clearance.

2, the flame-out resume combustion device of combustion gas according to claim 1 is characterized in that the movable contact 1 in the flame monitoring switch, and the double layer of metal sheet that its material available copper and constant volume alloy are made constitutes.

3, the flame-out resume combustion device of combustion gas according to claim 1 is characterized in that the flame monitoring switch can make with temperature control tube, also can make with thermistor.

4, the flame-out resume combustion device of combustion gas according to claim 1 is characterized in that the igniter arc ignition, and it is made up of high pressure generator 3, electric spark clearance 4, switch 5, steel pipe 6.

5, the flame-out resume combustion device of combustion gas according to claim 1 is characterized in that igniter can use piezoelectric ceramics, heating wire or mechanical friction ignition mechanism.