KR900001685Y1 - Instant ignition device in safety gas range - Google Patents

Abstract

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Description

Momentary ignition of safety gas range

1 is a circuit diagram of a conventional safety gas range.

2 is a circuit diagram of a safety gas range according to the present invention.

3 is an operation state showing the operation of the switch during ignition of the present invention.

4 is another embodiment of a safety gas range according to the present invention.

* Explanation of symbols for main parts of the drawings

1: thermocouple 2: gas valve

7: tap pressure ball S: switch

V: Battery IC: Timer IC

TM: Timer circuit M ', M ", M'": Solenoid

The present invention relates to an instantaneous ignition device for a safety gas range that automatically shuts off the gas when the flame is extinguished. The instantaneous ignition device of a safety gas range capable of instantaneous ignition by applying for a while.

In the conventional safety gas range, the ignition does not ignite unless the knob is rotated for a few seconds until the thermocouple generates the thermoelectric power, causing a lot of inconvenience in use.

In other words, if the thermocouple does not receive enough heat from the burner when releasing the knob that was pressed and rotated as shown in FIG. This is because the gas valve is blocking the gas passage and gas is not supplied continuously. Therefore, if the user presses the knob at every ignition and does not open the gas valve manually for a predetermined time (about 4-6 seconds), the ignition It was impossible.

Therefore, in the existing safety gas range there is a restriction on the use of pressing the knob rotated for 4-6 seconds when ignition, there is a hassle to re-ignite if not obeyed.

In order to eliminate such inconvenience in use, the present invention attaches a timer circuit consisting of a switch, a battery, and a timer IC between a solenoid of a gas valve and a thermocouple, so that a predetermined time (4- When the gas valve is temporarily opened unconditionally with a voltage generated only for 6 seconds, even if the knob is released immediately after pressing the knob by turning the ignition, a certain voltage from the timer circuit is applied to the solenoid for a certain time regardless of the magnitude of the thermal power. As a result, the valve maintains the open state until the heat generated by the heat of the gas is sufficiently formed, thus enabling instant ignition, and the combustion function is continuously maintained even when the knob is released after the momentary ignition.

That is, when the voltage supplied from the timer circuit is extinguished, the thermoelectric power of the thermocouple already supplies sufficient current to open the valve, so that the gas valve is continuously opened.

The present invention as described above will be described in detail with the accompanying drawings as a design that can completely solve the problem of waiting for a while while pressing the knob when ignition of the conventional safety gas range as follows.

2 is a circuit diagram of a safety gas range according to the present invention, the gas range is composed of a gas valve (2) for inducing and controlling the gas of the storage tank and the container to the hot power to the gas valve for induction and control operation An actuating solenoid (M ') is installed, which is forced open and closed by the knob shaft.

In addition, the solenoid M 'is connected to a thermocouple 1 that generates thermoelectric power by combustion heat of the burner, and the gas valve is connected to the burner again, between the thermocouple 1 and the solenoid M'. A timer circuit (TM) consisting of a switch (S), a battery (V), and a timer IC (IC) is connected to each other, and one end of the thermocouple (1) is passed through a diode (D) having a small internal resistance and a solenoid (M '). And at the same time its connection point (b) is connected to the timer IC (IC) via a variable resistor (VR), while the other end of the thermocouple (1) is connected to the timer IC (IC) and the solenoid (M '). It is a structure connected to each other end.

3 is an operation state illustrating the operation structure of the switch during ignition of the present invention, the switch S of the timer circuit TM for controlling the power supply in the retraction direction of the other pressure port 7 retreating when the knob rotates. .

The switch S is connected when the rudder pressure hole 7 retreats by rotating the knob, and is disconnected when moving forward to hit the piezoelectric element 5. The timer circuit TM is driven by a short circuit of the switch and is fixed. It will generate a "high" voltage over time (about 4-6 seconds).

4 is a view illustrating another embodiment of the safety gas range according to the present invention, and the configuration thereof may include a solenoid M having a timer circuit TM composed of a dry cell V, a timer IC IC, and a switch S. ')), The thermocouple 1 is connected to another solenoid M ", and the gas valve 2 is connected to open and close by the two solenoids M" (M' "). .

Referring to the operation effect of the present invention made in this configuration according to the drawings, to open the gas supply line first to ignite, press the ignition knob of the gas range and rotate it.

At this time, when the knob is pressed, the gas valve 2 linked to the suction iron piece of the solenoid is forcibly opened, and the ignition gas is supplied to the burner, and the tap-pressure port 7 retreats with the rotation of the knob, and then the coil spring (8). An ignition spark is generated due to the force that strikes the piezoelectric element 5 in the forward force due to the repulsive force.

The spark generated is opened by forced opening to ignite the supplied gas and burn at the nozzle.

Referring to the characteristic operation of the present invention in the above operation process, the switch (S) is "on" by the pressure-pressor 7 retreating when the knob rotates to operate the timer IC (IC).

By the operation of the timer IC (IC), the voltage (Vc) between the terminals (b, a) supplied from the timer circuit (TM) is applied to the solenoid (M "only for a certain time (approximately 4-6 seconds). To act as a block.

When the voltage Vc is applied, the voltage Vc excites the solenoid M "or the solenoid M '", and the excited solenoid M "or (M'") is the gas valve 2. ) Is forcibly opened for a certain time.

Therefore, the gas continues to be supplied during the open time, so the flame will not go out even if the knob is released immediately after ignition.

After a few seconds, when the time control of the timer IC (IC) ends, the voltage Vc at the output stage is extinguished.

However, at this time, since the thermocouple 1 is sufficiently heated, the solenoid M 'is kept in an excited state in the case of FIG. 2, and the solenoid M "is sufficiently excited in the case of FIG. Since 2) is kept open even after the voltage Vc is extinguished, the combustion state continues.

Here, the role of the diode D of FIG. 2 is prevented from being supplied to the thermocouple of the voltage Vc generated by the timer circuit.

As described above, the present invention enables the instantaneous ignition by the present invention even after the knob is pressed and rotated as in the conventional method, and the knob is released immediately, thereby eliminating the inconvenience of waiting for several seconds while pressing the knob after ignition.

Therefore, the use of gas appliances is not only convenient, but the number of impacts between the piezoelectric element and the other pressure port due to misoperation can be significantly reduced, and the effect of protecting the service life of the components of the device is combined with the above ignition operation. Can improve quality.

In addition, since the configuration of the present invention is simple, it does not occupy much space according to the manufacturing, installation, and installation, so it is applied to the existing safety gas range, and the moment of the safety gas range showing a remarkable effect on the use or technical aspects as described above. It is an ignition device.

Claims (4)

A gas valve (2) in a safety gas range in which an external voltage is supplied for a predetermined time in parallel with a thermocouple (1) to a closed circuit composed of a thermocouple (1), a diode (D), and a solenoid (M ') to enable instant ignition. A timer circuit (TM) consisting of a switch (S) and a battery (V) and a timer IC (IC) is connected between the solenoid (M ') and the thermocouple (1) of the A momentary ignition device for a safety gas range, comprising a configuration in which a voltage is applied for a predetermined time to keep the gas valve 2 open until the thermoelectric power is formed. 2. The instantaneous ignition device for a safety gas range according to claim 1, wherein the switch S of the timer circuit TM is installed in the retraction direction of the other pressure port 7 interlocked with the knob and connected at the time of ignition. . The instantaneous ignition device for a safety gas range according to claim 1, wherein the timer circuit (TM) and the solenoid (M ') are connected in parallel, and the diode (D) is connected in series. 2. The solenoid (M '") of the battery (V) and the timer IC (IC) switch (S) connected to the thermocouple is installed under the solenoid (M") connected to the thermocouple. Instantaneous ignition device of a safety gas range, characterized in that made.