KR100373462B1 - Control circuit for gas range and ventilation fan - Google Patents

Abstract

PURPOSE: An interlock control circuit is provided to achieve improved user convenience by permitting the gas range and ventilation fan to automatically operate. CONSTITUTION: An interlock control circuit comprises an ignition/flame control switch(14) mounted on a gas range(1), which has a plurality of connection terminals(a to e) for dividing the intensity of the flame of the gas range into plural intensity levels and selectively connects to the connection terminals in accordance with the user's action for rotating an ignition/flame control handle; a resistor group(15) mounted on the gas range and constituted by a plurality of resistors(R1 to R3) connected to each of connection terminals of the ignition/flame control switch, wherein each of resistors has different resistance values; an infrared emitting element(11) mounted on the gas range and connected to the resistor group, wherein the infrared emitting element receives a voltage applied from an external source and divided by each of resistors and outputs an infrared signal; an infrared receiving element(12) mounted on a ventilation fan(6), which receives an optical signal output from the infrared emitting element and switches in such a manner that the main voltage is supplied to a rotating blade drive motor(7); and an automatic/manual switch(16) mounted on the ventilation fan, which permits the main voltage terminal to be connected to the infrared receiving element in the automatic mode and permits the main voltage terminal to be directly connected to the rotating blade drive motor in the manual mode.

Description

Control circuit for gas range and ventilation fan

The present invention relates to an interlocking control circuit of a gas stove and a ventilation fan, and more particularly to an interlocking control circuit of a gas stove and a ventilation fan that automatically detects a user's ignition of a gas stove and drives the ventilation fan.

In general, the ventilation fan is a device that is spaced apart on the upper portion of the stove to discharge the smell or smoke generated when the user cooks food using the stove. In general, the smell generated when cooking food is spread to every corner of the room, and the smell penetrates into cloth, curtains, or other furniture, thereby providing a discomfort to the user. In addition, the soot or smoke generated during cooking of food is often harmful to the human body.

Therefore, the ventilation fan is used to discharge the smell of food and soot or smoke to the outside.

The ventilation fan is controlled by the user's selection, that is, the user must separately drive the ventilation fan regardless of the use state of the gas stove. Therefore, since the ventilation fan must be driven separately each time the user drives the gas stove to cook food, there is inconvenience for the user.

In addition, the conventional ventilation fan is to control only the on-off state of the rotary blades mounted inside the ventilation fan, there is no means for controlling the rotational speed of the rotary blades to cook a large amount of food at a time or Or when cooking foods that produce a lot of smell or smoke or soot there was a problem that does not effectively discharge the smell or smoke or soot.

Accordingly, an object of the present invention for solving the above problems is to provide an interlocking control circuit of a gas stove and a ventilation fan to detect the operation of the gas stove to drive the ventilation fan in conjunction with the gas stove.

Another object of the present invention is to provide an interlocking control circuit of a gas stove and a ventilation fan so that the rotational speed of the rotor blades mounted inside the ventilation fan can be automatically adjusted according to the intensity of the flame generated in the gas stove.

Still another object of the present invention is to provide an interlocking control circuit of a gas stove and a ventilation fan that allows a user to arbitrarily control the rotational speed of the rotary blade mounted inside the ventilation fan to be interlocked as the stove is operated.

1 is a front view showing an embodiment of a gas stove and a ventilation fan according to the present invention,

FIG. 2 is a circuit diagram showing an embodiment of an interlocking control circuit of the gas stove and the ventilation fan shown in FIG. 1;

3 is a circuit diagram showing another embodiment of the interlocking control circuit of the gas stove and the ventilation cloth shown in FIG.

4 is a front view showing another embodiment of a gas stove and a ventilation fan according to the present invention;

FIG. 5 is a circuit diagram showing an embodiment of an interlocking control circuit of a gas stove and a ventilation fan shown in FIG. 4;

6 is a circuit diagram showing another embodiment of the interlocking control circuit of the gas stove and the ventilation fan shown in FIG.

* Explanation of symbols used in the main part of the drawing

1: gas stove 2,3: burner

4,5: Control knob for ignition / flame 6: Ventilation fan

7: rotor blade drive motor 8: rotor blade

9: rotation speed adjusting knob 10: light emitting element

11: infrared light emitting device 12: infrared light receiving device

13: Auto / manual switching button 14: Ignition / flame control switch

15, 19: resistance group 16, 20: automatic / manual switching switch

17: ignition switch 18: rotation speed control switch

Vin: Main Voltage

The interlocking control circuit of the gas stove and the ventilation fan of the present invention for achieving the objects as described above is mounted on the gas stove and provided with a plurality of connection terminals for dividing the flame intensity of the stove into a plurality of ignitions. An ignition / flame control switch for selectively connecting each connection terminal in response to a user's operation of rotating the flame control knob; A resistor group mounted on the stove and connected to the connection terminals of the ignition / flame control switch in a one-to-one correspondence and having a plurality of resistors having different resistance values; An infrared light emitting element mounted on a gas stove and connected to a resistance group, the main voltage applied from the outside is divided by each resistor in the resistance group, and then applied with the divided voltage to emit light to emit an infrared signal; An infrared light receiving element mounted on the ventilation fan and configured to switch to receive the optical signal output from the infrared light emitting element and to supply the main voltage to the rotary blade driving motor; It is installed in the ventilation fan and the main voltage terminal and the infrared light receiving element are connected in the automatic mode according to the user's selection of the automatic and manual mode of the ventilation fan.In the manual mode, the main voltage terminal and the rotor blade driving motor And an automatic / manual switching switch for supplying the main voltage to a light emitting element mounted at a predetermined position of the ventilation fan and a rotary blade driving motor for driving the rotary blades to indicate that the ventilation fan is being driven. Characterized in that configured.

In addition, the interlocking control circuit of the gas range and the ventilation fan of the present invention is mounted on the gas range, and includes a plurality of connection terminals for dividing the flame intensity of the gas range into a plurality to rotate the ignition / disbulb adjustment knob. An ignition / flame control switch for selectively connecting each connection step in conjunction with a user's operation; A resistor group mounted on the stove and connected to the connection terminals of the ignition / flame control switch in a one-to-one correspondence and having a plurality of resistors having different resistance values; It is installed in the ventilation fan and the main voltage terminal and the output terminal of the resistance group are connected in the automatic mode according to the automatic and manual mode selection of the ventilation fan by the user.In the manual mode, the main voltage terminal and the rotor blade driving motor are connected. And an automatic / manual switching switch for supplying the main voltage to a light emitting element mounted at a predetermined position of the ventilation fan and a rotary blade driving motor for driving the rotary blades to indicate that the ventilation fan is being driven. What is configured is another feature.

In addition, the infrared light emitting device of the present invention is preferably composed of a photodiode, the infrared light receiving device receives an optical signal output from the infrared light emitting device as a base terminal, a main voltage is applied to the collector terminal, the emitter terminal is It is preferable to configure a photo transistor connected to the rotary blade driving motor and switching the main voltage to be supplied to the rotary blade driving motor by an optical signal output from the infrared light emitting element.

In addition, the ventilation fan, the rotational speed control switch attached to a predetermined position of the ventilation fan to control the rotational speed of the rotary blade and having a plurality of terminals for dividing the rotational speed into a plurality of stages; And a resistor group comprising a plurality of resistors connected to the plurality of terminals of the rotational speed control switch in a one-to-one correspondence and having different resistance values, such that each resistance value of the resistance group is sensed by a plurality of resistors different from each other. It can also be configured to control the rotational speed of the rotary blade using the value.

In addition, the gas stove is mounted on the gas stove instead of the ignition / flame control switch to be controlled on-off according to the operation of the ignition / flame adjustment knob by the user to control the driving of the rotary blade drive motor mounted in the ventilation fan. It can also be configured as an ignition switch.

Hereinafter, a preferred embodiment of an interlocking control circuit of a gas stove and a ventilation fan according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, in order to interlock and control the stove and the ventilation fan, a method of transmitting information on the ignition and flame intensity of the stove to the ventilation fan includes two methods, a wired transmission method and a wireless transmission method using infrared rays. It can be divided into branches.

In addition, in each information transmission method, the rotation speed of the rotary blade mounted inside the ventilation fan is automatically adjusted according to the flame intensity of the gas stove, and the user sets the rotation speed of the rotary blade in the state where the user sets the rotation speed of the gas stove. Depending on whether the ignition can be divided by rotating the rotor blades at a predetermined rotation speed. In the present invention, since each of the above-described methods can be adapted, each of these cases will be described sequentially.

(I) First, a description will be given of a case of wirelessly transmitting information on the ignition of a gas stove and the intensity of a flame to a ventilation fan.

1 is a front view showing an embodiment of a gas stove and a ventilation fan according to the present invention.

Referring to FIG. 1, the gas stove 1 includes a plurality of burners 2 and 3 and respective ignition / flame adjustment knobs 4 for adjusting the ignition operation and the intensity of the flames of the plurality of burners 2 and 3. And 5).

In addition, the ventilation fan 6 has a rotary blade drive motor 7 and a rotary blade 8 therein, and the rotation speed control to control the on-off state and the rotational speed of the rotary blade 8 outside It consists of a handle 9 and a light emitting element 10 which indicates that the rotary blade 8 is operating.

In addition, at a predetermined position of the gas stove 1, there is an infrared light emitting element 11 for outputting information on the ignition and flame intensity of the gas stove, and is opposed to the infrared light emitting element 11 of the gas stove 1. The infrared light receiving element 12 that receives the infrared signal output from the infrared light emitting element 11 is mounted at a predetermined position of the ventilation fan 6.

Here, reference numeral 13 denotes an automatic / manual switching button for selecting whether the user operates the ventilation fan 6 automatically or manually according to the driving state of the gas stove 1.

2 is a circuit diagram showing a state in which the rotational speed of the rotary blade 8 is automatically controlled according to the flame intensity of the gas stove 1. Referring to FIG. 2, the gas stove 1 has the above-described FIG. Ignition / flame control switch is integrally mounted to the ignition / flame adjustment knobs 4 and 5, and the user rotates the ignition / flame adjustment knobs 4 and 5 so as to be selectively connected to each connection terminal. 14), a resistor group 15 consisting of a plurality of resistors R1 to R3 connected one-to-one corresponding to each connection terminal in the ignition / flame control switch 14, and a main voltage applied to the resistor group 15 from the outside. It is comprised by the infrared light emitting element 11 which consists of light emitting diodes which are divided by each resistor R1-R3 in this resistance group 15, and apply this divided voltage, and it emits light and outputs an infrared signal.

In addition, the ventilation fan 6 is connected to an infrared light receiving element 12 made of a phototransistor and a collector terminal of the phototransistor which is an infrared light receiving element 12 to receive the infrared signal output from the above-described infrared light emitting element 11. An automatic / manual switching switch 16 having a terminal ⓑ and a terminal ⓒ connected to the emitter terminal, for switching the main voltage supplied to the collector terminal and the emitter terminal of the phototransistor through the terminal ⓐ by a user's operation; It is composed of a light emitting element 10 connected to the emitter terminal of the phototransistor and the light emitting element 10 for driving light by receiving the main voltage switched by the automatic / manual switching switch 16 and a rotating blade driving motor 7 for driving the rotating blade. .

However, in the resistors R1 to R3 described above, the magnitude of the resistance value is R1> R2> R3.

The operation of the present invention having the configuration as described above is as follows.

Assuming that the user initially set the ventilation fan 6 to the automatic mode, the automatic / manual disease switch l6 in the ventilation fan 6 keeps the terminal ⓐ and the terminal ⓑ connected.

Here, when the ignition / flame control switch 14 is in a stopped state (when terminal ⓐ and terminal ⓑ are connected), terminal ⓑ is open, so the main voltage Vin cannot be supplied to the system.

Thereafter, when the user operates the ignition / flame control switch 14 to ignite the gas stove and adjusts the intensity of the flame, the terminal ⓐ is connected to any one of the terminals ⓒ to ⓔ so that the main voltage Vin is a resistance group. It is supplied to the resistors R1 to R3 in (15). At this time, since the resistance values of the resistors R1 to R3 are different from each other, the respective current values detected by the resistors R1 to R3 are different from each other. That is, since the magnitude of the resistance value is R1> R2> R3, the magnitude of the current sensed by each resistor is I1 <I2 <I3.

This current value is applied to the photodiode, which is the infrared light emitting element 11, wherein the photodiode generates infrared signals of different intensities with respect to the applied current value.

The infrared signal generated by the infrared light emitting element 11 is applied to the base terminal of the phototransistor which is the infrared light receiving element 12 mounted on the ventilation fan 6 to turn on the phototransistor. When the photo transistor is turned on, the main voltage Vin is supplied to the collector terminal of the photo transistor through the terminal ⓐ and the terminal ⓑ of the automatic / manual switching switch 16. At this time, the intensity of the infrared rays supplied to the base terminal of the photo transistor is As a result, the output current of the phototransistor is proportionally output to the light emitting device 10 and the rotary wing driving motor 7, and the light emitting device 10 and the rotary wing driving motor 7 receive the current supplied from the phototransistor. The rotary fan 8 is driven and the user is displayed with the ventilation fan 6 being driven.

That is, since the largest current flows when the terminal ⓐ and the terminal ⓔ are connected to the photodiode, the optical signal output from the photodiode also has the largest value. Therefore, since the phototransistor receives the main voltage Vin to transmit the largest current to the light emitting device 10 and the rotary blade driving motor 7, the rotary blade 8 rotates at a high speed, 10) is displayed the brightest

Therefore, the ventilation fan 6 is automatically driven according to the ignition state of the gas stove 1, and the rotation speed of the rotary blade 8 is automatically adjusted according to the flame intensity of the gas stove 1. In addition, when the user presses the automatic / manual switching button 13 mounted on the front of the ventilation fan 6 to cancel the automatic mode and select the manual mode, the automatic / manual switching is performed by the lamp / manual switching button 13. Terminal ⓐ and terminal ⓒ of the switching switch 16 are connected so that the main voltage Vin is not supplied to the phototransistor but is directly supplied to the light emitting element 10 and the rotary vane driving motor 7, thereby driving the gas stove 1. The ventilation fan 6 can be driven regardless of the state. However, since the rotation speed adjusting knob 9 described above is automatically adjusted by the intensity of the flame of the gas stove 1 even if the speed of the rotation blade 8 is not set by the user, the driving of the rotation blade 8 is controlled. It is preferable to alternately configure the on-off button.

3, the user can arbitrarily set the rotational speed of the rotary blade 8 mounted in the ventilation fan 6, and is already set according to the ignition state irrespective of the flame intensity of the gas stove 1. A circuit diagram showing a state in which the rotary blade 8 is rotated at a speed. In Fig. 3, the same parts as those in Fig. 2 are denoted by the same reference numerals, and the description thereof will be omitted.

Referring to FIG. 3, the stove 1 is integrally mounted to the ignition / flame adjustment knobs 4 and 5 of FIG. 1 described above, and the user rotates the ignition / flame adjustment knobs 4 and 5 so as to rotate the gas stove. An ignition switch 17 which is interlocked and on-off controlled by igniting (1) is replaced with the ignition / flame control switch 14 of FIG. 2 and connected to the photodiode, which is the infrared light emitting element 11.

In addition, the ventilation fan 6 is connected to the automatic / manual switching switch 16 of FIG. 2, the phototransistor which is the infrared light receiving element 12, and the rotational speed adjusting knob 9 of FIG. As the knob 9 is rotated, the rotational speed control switch 18 is selectively connected to each connection terminal by interlocking rotation, and one-to-one connection is made to each connection terminal of the rotational speed control switch 12, and different resistance values are respectively provided. A resistor group 19 composed of a plurality of resistors R4 to R6 is connected to the light emitting element 10 and the rotary blade drive motor 7 of FIG.

However, in the resistors R4 to R6 described above, the magnitude of the resistance value is R6> R5> R4.

The operation of the present invention having the configuration as described above is as follows.

Assuming that the user initially set the ventilation fan 6 to automatic mode and set the rotation speed of the rotary blade 8 to medium speed, the automatic / manual switching switch 16 in the ventilation fan 6 is connected to the terminal ⓐ and the terminal ⓐ. The terminal ⓑ remains connected and the rotational speed control switch 18 maintains the terminal ⓐ and the terminal ⓒ connected. Here, the rotational speed control switch 18 rotates at a low speed when the terminal ⓐ and the terminal ⓑ are connected, and when the terminal ⓐ and the terminal ⓒ are connected, the rotary blade 8 is at the medium speed. It is assumed that the rotary blade 8 is set to rotate at high speed when the terminal ⓐ and the terminal ⓓ are connected.

Initially, the ignition switch 17 in FIG. 3 remains open when the ignition / flame adjusting knobs 4 and 5 are in a stopped state.

Thereafter, when the user rotates the ignition / flame adjusting knobs 4 and 5 to ignite the gas stove 1, the ignition switch 17 is shorted in conjunction with the ignition / flame adjusting knobs 4 and 5. Therefore, the main voltage Vin is applied to the photodiode, which is the infrared light emitting element 11, to emit the photodiode.

When the photodiode emits light, this infrared signal is supplied to the base terminal of the phototransistor, which is the infrared light receiving element 12 mounted in the ventilation fan 6, to turn on the phototransistor. Therefore, the main voltage Vin is supplied to the collector terminal of the phototransistor through the terminal ⓐ and the terminal ⓑ of the automatic / manual switching switch 16, and since the phototransistor is turned on, through the emitter terminal of the phototransistor. It is supplied to the terminal ⓐ of the rotational speed control switch 18. At this time, the terminal ⓐ of the rotational speed control switch 18 is connected to the terminal ©, so that the current sensed by the resistor R5 connected to the terminal © of the plurality of resistors R4 to R6 in the resistor group 19 is light-emitting element. 10 and the rotary blade drive motor 7 are respectively supplied to drive the rotary blade 8 and to indicate to the user that the ventilation fan 6 is being driven.

Therefore, the ventilation fan 6 is automatically driven at the rotational speed set by the initial user according to the ignition state of the gas stove 1. In addition, when the user presses the automatic / manual switching button 13 mounted on the front of the ventilation fan 6 to cancel the automatic mode and select the manual mode, the automatic / manual switching button 13 automatically or manually turns on. Terminal ⓐ and terminal ⓒ of the switching switch 16 are connected so that the main voltage Vin is not supplied to the photo transistor, but is directly supplied to the light emitting element 10 and the rotary blade driving motor 7 through the resistor group 19. The ventilation fan 6 can be driven regardless of the driving state of the stove 1.

(II) Next, the case where information regarding the ignition and flame intensity of the stove is transmitted to the ventilation fan by wires will be described.

4 is a front view showing another embodiment of a gas stove and a ventilation fan according to the present invention. In Fig. 4, the same reference numerals as those in Fig. 1 denote the same parts, and thus description thereof will be omitted.

4, the infrared light emitting element 11 mounted on the gas stove 1 of FIG. 1 and the infrared light receiving element 12 mounted on the ventilation fan 6 are removed, and the gas stove 1 and the ventilation fan are removed. (6) was connected by wire and configured to transmit information on the driving state of the gas stove (1).

5 is a circuit diagram showing a state in which the rotational speed of the rotary blades 8 is automatically controlled according to the flame intensity of the gas stove 1, and in FIG. 5, the same reference numerals as those in FIG. 5 denote the same parts. Therefore, description thereof will be omitted.

Referring to FIG. 5, the gas stove 1 has a plurality of resistors Rl to 1-to-one connected to each of the terminals of the ignition / flame control switch 14 and the ignition / flame control switch 14 described in FIG. The resistance group 15 provided with R3) is configured.

In addition, the ventilation fan 6 has a terminal ⓑ connected to the resistance group 15 built in the gas stove 1, and the terminal ⓒ is connected so that the main voltage vin is applied, and the terminal ⓐ is the light emitting device of FIG. 10) and a rotary blade drive motor 7, each of which is composed of an automatic / manual switching switch 20 connected thereto.

However, in the resistors R1 to R3 described above, the magnitude of the resistance value is R1> R2> R3 similarly to the second degree.

The operation of the present invention having the configuration as described above is as follows.

Assuming that the user initially set the ventilation fan 6 in the automatic mode, the automatic / manual switching switch 20 in the ventilation fan 6 remains connected to terminal ⓐ and terminal ⓑ.

Here, when the ignition / flame control switch 14 is in a stopped state (when terminal ⓐ and terminal ⓑ are connected), terminal ⓑ is open, so the main voltage Vin cannot be supplied to the system.

Thereafter, when the user operates the ignition / flame control switch 14 to ignite the gas stove and adjusts the intensity of the flame, the terminal ⓐ is connected to any one of the terminals ⓒ to ⓔ so that the main voltage Vin is a resistance group. It is supplied to the resistors R1 to R3 in (15). At this time, since the resistance values of the resistors R1 to R3 are different from each other, the respective current values detected by the resistors R1 to R3 are different from each other. That is, since the magnitude of the resistance value is R1> R2> R3, the magnitude of the current sensed by each resistor is I1 <I2 <I3.

This current value is supplied to the terminal ⓑ of the automatic / manual disease switch 20 and supplied to the light emitting element 10 and the rotary blade driving motor 7 through the loop of terminal ⓑ → terminal ⓐ. At this time, the current supplied to the light emitting device 10 and the rotary blade driving motor 7 changes the magnitude of the output current according to the connection state of the ignition / flame control switch 14, so that the flame intensity of the gas stove 1 As a result, the brightness of the light emitting device 10 and the rotation speed of the rotary blade 8 are automatically changed.

On the other hand, if the user presses the automatic / manual switching button 13 mounted on the front of the ventilation fan 6 to cancel the automatic mode and select the manual mode, the automatic / manual switching button 13 Terminal ⓐ and terminal ⓒ of the switching switch 20 are connected so that the main voltage Vin is directly supplied to the light emitting element 10 and the rotary blade driving motor 7, so that the ventilation fan is independent of the driving state of the gas stove 1. (6) can be driven. However, since the rotation speed adjusting knob 9 described above is automatically adjusted by the intensity of the flame of the gas stove 1 even if the speed of the rotation blade 8 is not set by the user, the driving of the rotation blade 8 is controlled. It is preferable to alternatively configure the on-off button.

Next, FIG. 6 shows that the user can arbitrarily set the rotational speed of the rotary blade 8 mounted in the ventilation fan 6, and is already set according to the ignition state regardless of the flame intensity of the gas stove 1. As a circuit diagram showing the state in which the rotary blade 8 is rotated at a speed, in Fig. 6, the same parts as those in Figs. 3 and 5 are denoted by the same reference numerals, and the description thereof will be omitted.

Referring to FIG. 6, the stove 1 is integrally mounted to the ignition / flame adjustment knobs 4 and 5 of FIG. 4 described above, and the user rotates the ignition / flame adjustment knobs 4 and 5 so as to rotate the gas stove. An ignition switch 17 which is interlocked and on-off controlled by igniting (1) is replaced by the ignition / flame control switch 14 of FIG.

In addition, the ventilation fan 6 is connected to the automatic / manual switching switch 20 of FIG. 5 and the rotational speed adjustment knob 9 of FIG. 1 so that the user rotates the rotational speed adjustment knob 9 as the user rotates the rotational speed adjustment knob 9. And a plurality of resistors R4 to R6 connected one-to-one to each connection terminal of the rotational speed control switch 18 and having a different resistance value, respectively. The resistance group 19 is connected to the light emitting element 10 and the rotary blade driving motor 7 of FIG.

However, in the resistors R4 to R6 described above, the magnitude of the resistance value is R6> R5> R4.

The operation of the present invention having the configuration as described above is as follows.

Assuming that the user initially set the ventilation fan 6 to the automatic mode and the rotational speed of the rotary blade 8 to medium speed, the automatic / manual switching switch 20 in the ventilation fan 6 is connected to the terminal ⓐ. The terminal ⓑ remains connected and the rotational speed control switch 18 maintains the terminal ⓐ and the terminal ⓒ connected. However, as mentioned in FIG. 3, when the terminal ⓐ and the terminal ⓑ are connected, the rotational speed control switch 18 rotates at low speed, and when the terminal ⓐ and the terminal ⓒ are connected, as shown in FIG. It is assumed that the rotary blade 8 is set to rotate at high speed when the rotary blade 8 rotates at a medium speed and the terminal ⓐ and the terminal ⓓ are connected.

Initially, the ignition switch 17 of FIG. 6 remains open when the ignition / flame adjusting knobs 4 and 5 are at rest.

Thereafter, when the user rotates the ignition / flame adjusting knobs 4 and 5 to ignite the gas stove 1, the ignition switch 17 is shorted in conjunction with the ignition / flame adjusting knobs 4 and 5. Therefore, the main voltage Vin is supplied to the terminal ⓑ of the automatic / manual switching switch 20. At this time, since the automatic / manual switching switch 20 is set to the automatic mode, the main voltage Vin is connected to the terminal ⓒ among the plurality of resistors R4 to R6 in the resistance group 19 through the terminal ⓑ → terminal ⓐ. The current sensed by the resistor R5 is supplied to the light emitting element 10 and the rotary blade driving motor 7 to drive the rotary blade 8 and to indicate that the ventilation fan 6 is being driven to the user. do.

Therefore, the ventilation fan 6 drives the ruler at the rotational speed set by the initial user according to the ignition state of the gas stove 1. In addition, when the user presses the automatic / manual switching button 13 mounted on the front of the ventilation fan 6 to cancel the automatic mode and select the manual mode, the automatic / manual switching button 13 The terminal ⓐ and terminal ⓒ of the switch 20 are connected so that the main voltage Vin is directly supplied to the light emitting element 10 and the rotary vane driving motor 7 through the resistance group 19 so that the gas stove 1 is driven. It is possible to drive the ventilation fan (6) regardless of.

As described above, according to the interlocking control circuit of the gas stove and the ventilation fan according to the present invention, since the ventilation fan is automatically driven at the same time as the gas stove is driven, there is an advantage of providing convenience to the user.

In addition, since the rotation speed of the rotary blade mounted in the ventilation fan is automatically adjusted according to the flame intensity of the stove, there is an advantage that can effectively discharge the odor or soot and smoke generated when cooking food.

In addition, since the operating state of the ventilation fan can be switched automatically or manually by the user's selection, when the use of the ventilation fan is unnecessary, the ventilation fan can be prevented from interlocking to prevent unnecessary power consumption. Can be obtained.

Claims (6)

In a conventional gas stove having a burner and a ignition / flame adjusting knob for adjusting the ignition and flame intensity of the burner, and a conventional ventilation fan having a rotary blade and a rotary wing drive motor, A plurality of connection terminals mounted on the gas stove and provided with a plurality of connection terminals for dividing the flame intensity of the gas stove into a plurality, and selectively connecting each connection terminal in conjunction with a user's operation of rotating the ignition / flame adjustment knob. Ignition / flame control switch connecting; A resistor group mounted on the stove and connected to the connection terminals of the ignition / flame control switch in a one-to-one correspondence and having a plurality of resistors having different resistance values; An infrared light emitting device mounted on the gas stove, connected to the resistance group, the main voltage applied from the outside is divided by each resistor in the resistance group, and then applied to the divided voltage to emit light to emit an infrared signal; An infrared light receiving element mounted on the ventilation fan and switching to supply a main voltage to the rotary blade driving motor by receiving an optical signal output from the infrared light emitting element; And It is mounted to the ventilation fan, the main voltage terminal and the infrared light receiving element is connected in the automatic mode in accordance with the automatic mode and manual mode selection of the ventilation fan by the user, the main voltage terminal and the rotation in the manual mode Automatic / manual for the vane driving motor to be directly connected, so that the main voltage is supplied to the light emitting element mounted at the predetermined position of the ventilation fan and the rotary vane driving motor for driving the rotary vane to indicate that the ventilation fan is driving. Interlocking control circuit of the gas stove and the ventilation fan, characterized in that the switch comprises a switch. In a conventional gas stove having a burner and a ignition / flame adjusting knob for adjusting the ignition and flame intensity of the burner, and a conventional ventilation fan having a rotary blade and a rotary wing drive motor, A plurality of connection terminals mounted on the stove, and having a plurality of connection terminals for dividing a plurality of flame strengths of the stove, selectively connecting the connection terminals in conjunction with a user's operation of rotating the ignition / flame adjustment knob. Ignition / flower control switch connected; A resistor group mounted on the stove and connected to the connection terminals of the ignition / flame control switch in a one-to-one correspondence and having a plurality of resistors having different resistance values; And It is attached to the ventilation fan, the main voltage terminal and the output terminal of the resistance group in the automatic mode according to the automatic mode and manual mode selection of the ventilation fan by the user, and in the manual mode, the main voltage terminal and the rotation Automatic / manual for the vane driving motor to be directly connected, so that the main voltage is supplied to the light emitting element mounted at the predetermined position of the ventilation fan and the rotary vane driving motor for driving the rotary vane to indicate that the ventilation fan is driving. Interlocking control circuit of the gas stove and the ventilation fan, characterized in that the switch comprises a switch. The method of claim 1, wherein the infrared light emitting element, Frozen control circuit of a gas stove and a ventilation fan, characterized by consisting of a photodiode. The method of claim 1, wherein the infrared light receiving element, The optical signal output from the infrared light emitting device is applied to the base terminal, the main voltage is applied to the collector terminal, and the emitter terminal is connected to the rotary wing driving motor, and the optical signal output from the infrared light emitting device And a photo transistor configured to switch a main voltage supplied to the rotary blade driving motor. The ventilation fan according to claim 1 or 2, A rotation speed control switch attached to a predetermined position of the ventilation fan to control the rotation speed of the rotation blade and having a plurality of terminals for dividing the rotation speed into a plurality of stages; And Is connected to the plurality of terminals of the rotational speed control switch so as to correspond one-to-one, a resistance group of a plurality of resistors having a different resistance value is further provided, An interlocking control circuit of a gas stove and a ventilation fan, characterized in that each of the resistance values of the resistance group controls the rotational speed of the rotary blade using different current values sensed by a plurality of different resistances; The gas stove according to claim 1 or 2, An ignition switch mounted on the gas stove in place of the ignition / flame control switch and controlled on-off according to the operation of the ignition / flame adjustment knob by a user to control the driving of the rotary blade drive motor mounted in the ventilation fan. Interlocking control circuit of the gas stove and the ventilation fan, characterized in that the alternative configuration.