WO2014014210A1

WO2014014210A1 - Stove hood system and control method therefor

Info

Publication number: WO2014014210A1
Application number: PCT/KR2013/005525
Authority: WO
Inventors: 이충훈; 이원희
Original assignee: Lee Choong-Hoon; Lee Won-Hee
Priority date: 2012-07-19
Filing date: 2013-06-24
Publication date: 2014-01-23

Abstract

The present invention relates to a stove hood and a control method therefor. The stove hood comprises: a case for discharging gas to the outside by an exhaust fan; a temperature detection sensor which is mounted in the case and detects heat transferred from a burner; a gas detection unit which is arranged on a gas pipe between a gas valve and the burner and detects that gas remaining in a section between the gas valve and the burner is flowing into the burner, before the ignition caused by the opening of a burner handle; and a control unit which is connected to the gas detection unit and the temperature detection sensor, and which opens and shuts the gas valve on the gas pipe or drives the exhaust fan according to the temperature and the supply of gas after the ignition, wherein the control unit carries out ventilation by driving the exhaust fan in advance by a signal of the gas detection unit when the remaining gas flows into the burner by the rotation of the burner handle, and drives the exhaust fan by a temperature signal of the temperature detection sensor and the signal of the gas detection unit after the ignition.

Description

Range hood system and its control method

The present invention relates to a range hood system and a control method thereof, and more particularly, to open and close a gas valve or automatically adjust an air flow amount of an exhaust fan in association with a supply of gas supplied to a sensor and a burner of a range hood. The present invention relates to a range hood and a control method thereof in which the exhaust fan can be rotated differentially according to the ambient temperature when the exhaust fan is driven again by pressing the stop button once more in the stop state.

In general, the range (Gas range) is a device for cooking food using gas or electricity. In particular, there are various types of gas ranges, such as a domestic gas range installed in a general home kitchen, a portable gas range that can be easily cooked in the open air, a gas stove for a large business to be installed in a restaurant, and the like.

Such gas ranges include a plurality of burners which are typically heat sources; A range hood for discharging smoke or odor generated from the burner to the outside; A gas pipe for supplying gas to the burner; It consists of a gas valve to regulate the gas supply between the gas pipe and the burner.

One embodiment of such a gas range is proposed in Patent Application No. 1997-43131 (Gas Leak Detection Automatic Discharge Circuit). In the prior art, Gas detection unit for detecting a gas or smell; An amplifier for comparing and amplifying the signals detected by the gas detector; A fan driver for driving the fan by the output signal of the amplifier; A buzzer driver for driving a buzzer by an output signal of the fan driver; The fan driving unit, the buzzer driving unit, and a display unit for displaying the operation of the circuit and a power supply unit for supplying power to each circuit.

Therefore, after the gas detector detects the leakage of the gas supplied to the range hood, by automatically operating the exhaust fan of the range hood to vent the gas to prevent the accident due to gas leakage.

In addition, to pause the exhaust fan of the working gas range, press the pause button provided on the control panel.

However, such a conventional gas range has a problem that the gas detection time is delayed because the gas is sensed after the gas is discharged to the outside of the gas pipe.

In addition, the conventional gas range is a method of driving the exhaust fan by mounting a temperature sensor on the stove hood to sense the temperature of the stove, it is simply a structure to drive or stop the exhaust fan when the temperature is above the reference temperature various cooking environment There is a problem that does not correspond properly.

In addition, when the pause button is pressed to pause the exhaust fan, the pause button is simply on and off, so there is a limit to driving the exhaust fan differentially according to various ventilation conditions. There is a problem.

Therefore, the present invention has been proposed to solve the above problems, the problem of the present invention is to mount the sensor on the range hood to sense the temperature and gas to open and close the gas valve or to easily drive the exhaust fan It is to provide a range hood system and a control method thereof.

Another object of the present invention is to provide a range hood system and a method of controlling the same, which can drive the exhaust fan of the range hood or automatically open or close the gas valve according to the temperature by converting the temperature of the food or the gas amount into a calorific value.

Another object of the present invention is to turn off the pause button while the exhaust fan is rotating, and then press the stop button once more to turn off the exhaust fan to rotate the exhaust fan according to the ambient temperature. It is to provide a range hood system and a control method thereof.

The present invention has been proposed to solve the above problems, an embodiment of the present invention includes a case; A temperature sensor mounted on the case to sense heat transferred from a burner; A gas detector disposed on the gas pipe to detect a state of the gas; And mounted to the case, and is connected to the gas detection unit and the temperature sensor provides a range hood including a control unit for opening and closing the gas valve on the gas pipe or driving the fan of the range hood according to the supply and temperature of the gas.

In addition, another embodiment of the present invention, the gas detection unit disposed in the gas pipe, the first step of detecting the gas flow before the burner knob of the gas range is opened and the gas valve is opened; And a second step of the control unit opening the gas valve in response to the signal received from the gas sensing unit and performing ventilation by rotating the exhaust fan.

The second step includes calculating a gas flow detected by the gas detector in the first step as a gas amount; Converting the calculated amount of gas into calories; And controlling the rotation speed of the exhaust fan by comparing the converted calorific value with a temperature signal received from a temperature sensor mounted on the range hood.

Another embodiment of the present invention and the case for discharging the gas to the outside by the exhaust fan; A sensor mounted on the case to sense heat transferred from a burner; A stop button for driving the exhaust fan; In addition, when the stop button is first pressed, the motor of the exhaust fan is temporarily stopped by detecting the detected value input from the sensor and the operation state of the stop button. It provides a range hood system including a control unit for driving a motor.

Still another embodiment of the present invention includes the steps of (a) rotating the motor in accordance with the detection value of the sensor; (b) determining whether the detected value of the sensor corresponds to the stopped state of the motor; (c) if the motor is not stopped, driving the motor in the number of stages corresponding to the detected value of the sensor; (d) determining whether the stop button is on or off during driving; (e) temporarily stopping the motor when the stop button is first pressed as a result of the determination; (f) monitoring whether the sensed value of the sensor corresponds to a stop even in a paused state; And (g) releasing the pause state of the motor when the stop button is pressed once more, and returning to step (C) to execute the control method of the range hood system.

As described above, the range hood system and the control method according to the present invention has the following advantages.

First, the amount of gas according to the pressure or flow rate of the gas detected by the gas detector is converted into calories, the calorific value is compared with the temperature value input from the temperature sensor, and the exhaust fan is driven differentially according to the result. By doing so, there is an advantage that the ventilation can be efficiently performed according to various environmental conditions.

Second, by installing a smoke sensor in the range hood can further measure the pollution of the air has the advantage that can properly control the rotational speed of the exhaust fan reflecting the pollution of the air as well as the temperature of the range.

Third, by installing a timer in the range hood and connecting to the gas valve, when the target time is input through the timer, the gas valve can be automatically shut off at the corresponding time, there is an advantage that can prevent the burning of food .

Fourth, when the exhaust fan is rotating at the proper rotation speed according to the detected value detected by the sensor, press the stop button once to pause the exhaust fan, and if the stop button is pressed again in this state, When the pause mode is released, the exhaust fan is rotated. At this time, the exhaust fan is not simply rotated at a constant speed but is rotated differentially according to the sensor's detection value. There is an advantage to increase the efficiency of the stop button can be rotated directly differentially without.

1 is a view showing a state in which a range hood is mounted on a gas range according to an embodiment of the present invention.

FIG. 2 is a view schematically illustrating a control structure of the range hood shown in FIG. 1.

3 is a view showing a smoke sensor further mounted as another embodiment of the range hood shown in FIG.

4 is a view showing a control panel and a timer of the range hood shown in FIG.

5 is a flowchart illustrating an operation process of the range hood illustrated in FIG. 1.

6 is a view showing a range hood according to another embodiment of the present invention.

7 is a flowchart illustrating a method of controlling the range hood shown in FIG. 6.

The present invention relates to a range hood system and a control method thereof, and the range hood system has the following configuration. That is, the range hood system includes a case for discharging gas to the outside by an exhaust fan; A temperature sensor mounted on the case to sense heat transferred from a burner; A gas detector disposed on a gas pipe between the gas valve and the burner and detecting that gas remaining in the section between the gas valve and the burner flows to the burner before the burner handle is opened and ignited; And a control unit connected to the gas detecting unit and the temperature detecting sensor to open or close the gas valve on the gas pipe or drive the exhaust fan according to the supply and temperature of the gas after ignition, wherein the control unit is rotated by the burner handle. When the residual gas flows to the burner, the exhaust fan is driven in advance by a signal of the gas detector, and after the ignition, the exhaust fan is driven by the temperature signal of the temperature sensor and the signal of the gas detector.

Hereinafter, a range hood according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, the gas range 1 proposed by the present invention includes at least one burner 3 that serves as a heat source; Range Hood System (5) for discharging the smell or smoke generated from the burner (3) to the outside.

In the gas range having such a structure, the range hood system (5) includes a case (7) provided with an exhaust fan (f) for discharging gas; A temperature sensor 13 mounted to the case 7 to sense heat such as food; A gas detector 11 which is discharged on the gas pipe P and detects gas; The control unit 10 is provided in the case 7 and receives a signal from the gas detection unit 11 and the temperature sensor 13 to open or close the gas valve V or drive the exhaust fan f.

The gas detection unit 11 is electrically connected to the control unit 10, it means a sensor for detecting the gas flowing through the interior of the gas pipe (P).

That is, it includes a pressure sensor for detecting the pressure of the gas flowing inside the gas pipe (P), or a flow rate sensor for detecting the flow rate of the gas.

In more detail, when the user rotates and opens the burner handle 4 of the burner 3, the user has remained in the section between the burner 3 and the gas valve 9 of the gas pipe P. The gas flows toward the burner 3, and at this time, the gas pressure inside the gas pipe P is changed, and the pressure sensor detects the change in the gas pressure.

When the gas pressure is detected by the pressure sensor, the pressure sensor transmits a signal to the control unit 10 of the hood hood 5, and the control unit 10 controls the gas valve V according to the signal. By opening in the on state, gas can be continuously supplied to the burner 3, and ventilation can be performed by driving the exhaust fan f.

In addition, the gas detection unit 11 may be a flow rate sensor. When the burner knob 4 is turned, the gas remaining in the gas pipe P starts to flow in the burner 3 direction, and the flow rate sensor causes the gas to flow. It detects the amount of change in the flow rate due to the flow of water.

In addition, when the fluctuation of the gas flow rate is detected by the flow rate sensor, the flow rate sensor transmits a signal to the control unit 10 of the range hood system 5, and the control unit 10 controls the gas valve V according to this signal. It is opened in the on state and simultaneously drives the exhaust fan f. At this time, the exhaust fan f is rotatable by the motor (M).

As described above, the gas detection unit 11 includes a flow rate sensor or a pressure sensor, and detects a change in the pressure or flow rate of the gas and transmits a signal to the controller 10 to open the gas valve V in an on state. And the exhaust fan f is driven.

As described above, the gas range 1 according to the present invention is not a method of driving the exhaust fan f by detecting the gas when the gas is leaked after the gas is supplied to the burner 3 and the ignition is started. ,

Since the burner handle 4 is rotated and the residual gas is supplied to the burner 3, the exhaust fan f is driven by detecting the flow rate or pressure of the gas, so that the gas can be quickly responded to the leakage of the gas. have.

On the other hand, the temperature sensor 13 is provided in the range hood (5) detects the heat transmitted from the burner (3) and transmits a signal to the control unit (10).

The control unit 10 is disposed on the control panel 15 of the range hood system 5, and controls the temperature signal of the temperature sensor 13 and the pressure or speed signal of the gas received from the gas detection unit 11. It receives and computes, compares this calculated value with a reference value, and controls the rotation speed of the exhaust fan f according to the result value.

In more detail, the control unit 10 includes an input unit 22 for receiving a temperature signal and a gas signal transmitted from the gas detector 11 and the temperature sensor 13;

A calorific value calculator 24 for calculating calorie value based on a flow rate or a pressure signal of the gas inputted by the input unit 22; A storage unit 25 in which rotational stages of the motor M corresponding to respective sensing values sensed by the temperature sensing sensor 13 are set;

The rotation speed of the exhaust fan f is determined according to a result calculated by combining the result value of the calorific value calculating section 24 and the temperature signal input by the input section 22, and the detected value of the temperature sensor 13 A calculation unit 26 for extracting and rotating the rotational stage of the motor M according to the present invention;

The output unit 28 transmits a signal to the exhaust fan f or the gas valve V on / off according to the result calculated by the operation unit 26.

In the control unit 10 having such a structure, the calorific value calculating unit 24 calculates the amount of gas in accordance with the result value detected by the pressure sensor or the flow rate sensor, and converts the calculated amount of gas into the amount of heat, thereby converting the gas range. The temperature of (1) can be recognized.

For example, the amount of gas passing through the gas pipe P per unit time can be calculated based on the result of the pressure sensor or the flow rate sensor. That is, if the pressure value of the gas and the diameter of the gas pipe P are known, the amount of gas passing through the gas pipe P per unit time can be calculated according to the principle of Pascal.

In addition, when the flow velocity of the gas is known, the amount of gas passing through the gas pipe P per unit time can be calculated by Bernoulli's theorem.

Thus, after calculating the amount of gas, this value is converted into calorific value. At this time, the calorific value per unit gas amount is a state set in advance in the calorific value calculating unit 24.

Therefore, the calorific value calculation unit 24 may calculate the amount of gas and calculate the calorie value based on the calculated result value.

The calculation unit 26 determines the ignition state of the current burner 3 based on the calorific value, and rotates the exhaust fan f according to the result.

That is, the calculator 26 may compare the temperature input from the temperature sensor with the temperature calculated from the calorific value calculator 24 and drive the exhaust fan f according to the result.

For example, when the temperature value of the temperature sensor is higher, it means that the temperature detected by the temperature sensor is higher than the temperature due to the ignition of the burner 3, and in this case, due to the ignition of the burner 3 itself. It can be judged that the temperature has risen due to the heat transferred from a place other than the range. Therefore, the exhaust fan f can be rotated at a lower speed.

On the contrary, when the temperature value of the calorific value calculation unit 24 is higher, it means that the ignition is suddenly performed in the burner 3, but this heat has not yet reached the range hood 5. In this case, therefore, the exhaust fan f can be rotated at a high speed in advance to ventilate to efficiently dissipate heat.

When the temperature value of the temperature sensor and the temperature value of the calorific value calculation unit 24 are similar, it means that the heat generated from the burner 3 is smoothly exhausted through the range hood 5, and in this case, It is desirable to maintain the heat flow in the current state by rotating the exhaust fan f at a medium speed.

As described above, the calculation unit 26 may compare and determine the temperature values of the temperature sensor and the calorific value calculation unit 24, thereby effectively discharging the heat of the range by rotating the exhaust fan f at an appropriate rotation speed. Can be.

Meanwhile, as shown in FIG. 3 as another embodiment of the present invention, a smoke sensor 30 may be additionally mounted to the range hood 5. In the present embodiment, there is a difference that the gas valve V can be automatically shut off according to the cooking temperature, the air pollution concentration, and the rotation speed of the exhaust fan f.

In more detail, the temperature sensor 13 and the smoke sensor 30 are mounted on the range hood 5, and these components are connected to the control unit 10 and the gas valve V.

The smoke sensor 30 is a sensor for detecting smoke generated from a range, and various sensors such as photosensitive, light scattering, and ionizing may be applied.

The smoke sensor 30 detects the smoke, and displays this as a voltage value to detect how much smoke is around the range, and transmits a signal to the controller 10.

In addition, the controller 10 may recognize the current driving state of the exhaust fan f by sensing the rotation speed of the exhaust fan f.

As a result, the controller 10 can grasp the temperature value obtained by the temperature sensor 13, the air pollution degree obtained by the smoke sensor 30, and the rotation speed of the exhaust fan f. By combining them with each other and comparing with the reference value, it is possible to automatically control the gas valve (V).

For example, when the cooking temperature is 65 degrees, the input value of the smoke sensor is 3.5V, and the exhaust fan f is five stages, the gas valve V is closed.

The gas valve V is closed even when the cooking temperature is 70 degrees, the input value of the smoke sensor is 3V, and the exhaust fan f is two stages.

In addition, the gas valve V is closed even when the cooking temperature is 90 degrees, the input value of the smoke sensor is 1V, and the exhaust fan f is stopped.

As described above, the gas valve V can be automatically shut off or opened according to the rotation speed of the temperature sensor 13, the smoke sensor 30, and the exhaust fan f.

Meanwhile, another embodiment of a range hood is shown in FIG. As shown, the present embodiment shows that the timer 17 is mounted on the range hood. At this time, the timer 17 may set a target time through the increase and decrease switch. The timer 17 is connected to the gas valve V through the control unit 10.

Therefore, when setting the target time through the timer 17, the control unit 10 can block the gas valve (V) in accordance with the set time by transmitting a signal to the gas valve (V).

As a result, the gas valve (V) is automatically shut off at the time set by the timer (17), so it is convenient to burn food and go out.

Hereinafter, the operation of the gas range according to the embodiment of the present invention will be described in more detail.

As shown in Figure 1 and 5, the control method of the range hood system 5 proposed in the present invention is the first step (Gas detection unit 11 disposed in the gas pipe (P) to detect the gas flow ( S100); And the control unit 10 includes a second step (S110) for opening the gas valve (V) in accordance with the signal received from the gas detection unit 11, and performs the ventilation by rotating the exhaust fan (f). .

In more detail, in the first step (S100), when operating the gas range 1, the user first turns the burner knob 4 to open it. When the burner handle 4 is opened, the gas remaining in the section between the burner 5 and the gas valve V of the gas pipe P flows in the burner 3 direction.

Then, the pressure sensor or the flow rate sensor mounted on the gas pipe (P) detects the pressure change or the flow rate change of the gas and transmits a signal to the control unit 10.

In the second step S110, the control unit 10 of the range hood system 5 opens the gas valve V in an on state according to this signal so that the gas can be continuously supplied to the burner 3. And ventilation can be performed by driving the exhaust fan f.

Since the burner knob 4 of the gas range 1 is rotated to detect the flow rate or pressure of the gas from the time when the gas is supplied, the exhaust fan f is driven to quickly respond to the leakage of gas. have.

In the second step (S110), the controller 10 combines the temperature signal received from the temperature sensor 13 of the range hood 5 with the pressure or speed signal received from the gas detector 11. Therefore, the rotation speed of the exhaust fan f is controlled.

In more detail, the second step (S110) may include calculating a gas flow detected by the gas detector (11) in the first step (S100) as a gas amount (S120); Converting the calculated amount of gas into calories (S130); And controlling the rotation speed of the exhaust fan f by comparing the converted calorific value with a temperature signal received from the temperature sensor 13 mounted on the range hood 5 (S140). .

In the step of calculating the gas amount (S120), the calorific value calculation unit 24 of the control unit 10 calculates the amount of gas according to the result value detected by the pressure sensor or the flow rate sensor.

In step S130 of converting the amount of heat, the temperature of the range can be recognized by converting the calculated amount of gas into the amount of heat.

After converting the calorific value in this manner, the calculation unit 26 compares the calorific value and the temperature value of the temperature sensor 13 with each other to determine the ignition state of the current burner 3, and accordingly the exhaust fan f Rotate).

For example, when the temperature value of the temperature sensor is higher, it may be determined that the temperature has risen due to heat transferred from a place other than the range rather than due to the ignition of the burner 3, and thus the exhaust fan f ) Can be rotated at a lower speed.

On the contrary, when the temperature value of the calorific value calculating section 24 is higher, it means that a sudden ignition is proceeding in the burner 3, but since the heat has not reached the range hood 5, the exhaust fan ( f) is rotated at high speed.

When the temperature value of the temperature sensor 13 and the temperature value of the calorific value calculation unit 24 are similar, it means that the heat generated from the burner 3 is smoothly exhausted through the range hood 5. In this case, the exhaust fan f is rotated at medium speed.

On the other hand, when the smoke sensor 30 is mounted on the range hood 5, the smoke remaining around the range hood 5 is detected to adjust the rotation speed of the exhaust fan f.

That is, the controller 10 can grasp the temperature value obtained by the temperature sensor 13, the air pollution degree obtained by the smoke sensor 30, and the rotation speed of the exhaust fan f. By combining with each other, the gas valve V can be controlled automatically.

For example, if the cooking temperature is 65 degrees, the input value of the smoke sensor is 3.5V, the exhaust fan f is five stages, or the cooking temperature is 70 degrees, the smoke sensor input value is 3V, and the exhaust fan ( If f) is two stages or if the cooking temperature is 90 degrees, the input value of the smoke sensor is 1V, and the exhaust fan f is stopped, the gas valve V is closed.

As a result, when the heat or smoke remains even after the operation of the gas range 1 is stopped, the control unit 10 detects the gas valve V by detecting it by the temperature sensor 13 and the smoke sensor 30. Further ventilation can be effected by closing and driving the exhaust fan f.

On the other hand, when the timer 17 is attached to the range hood, the user sets a target time through the increase and decrease switch. The set time is stored in the controller, and the controller 10 transmits a signal to the gas valve (V). Therefore, the gas valve V opens and closes the gas pipe P by this signal.

Meanwhile, another embodiment of the present invention is shown in FIGS. 1, 2, 6, and 7. In this embodiment, when the stop button is released and the exhaust fan is driven again by improving the structure of the stop button, the exhaust fan There is a difference that can rotate differentially according to the ambient temperature.

Therefore, the same reference numerals are used for the same elements as those of the previous embodiment among the components of the present embodiment, and detailed description thereof will be omitted.

The range hood system 5 of the gas range 1 according to the present embodiment includes a case 7 provided with an exhaust fan f for discharging gas; A sensor (13) mounted on the case (7) to sense heat transferred from the burner (3); A stop button 9 for driving the exhaust fan f; And

When the stop button is first pressed by detecting the detected value input from the sensor 13 and the operating state of the stop button 9, the motor M of the exhaust fan f is temporarily stopped, and when the second button is pressed, the sensor And a control unit 10 for differentially driving the motor M of the exhaust fan f in accordance with the detected value of (13).

In the range hood system having such a structure, the sensor 13 includes a temperature sensor for sensing the temperature of the range hood system 5, or a gas sensor for detecting gas.

The temperature sensor may include various types of sensors such as contact or non-contact type, but a non-contact type sensor that senses temperature by infrared rays or ultraviolet rays is preferable.

In addition, the gas sensor, as mentioned in the previous embodiment includes a gas pressure sensor for detecting the pressure of the gas flowing in the gas pipe (P), or a gas flow rate sensor for detecting the flow rate of the gas.

Then, the amount of gas is calculated according to the result value detected by the gas pressure sensor or the flow rate sensor, and the calculated amount of gas may be converted into a temperature value by converting the amount of heat into heat.

The stop button 9 is arranged on the control panel 15 and is connected to the motor M of the exhaust fan f via the control unit 10.

Therefore, when the stop button 9 is pressed once, the control unit 10 stops the operation of the motor M so that the rotation of the exhaust fan f is stopped. In addition, when the stop button 9 is pressed once more, the exhaust fan f is rotated by operating the motor M again.

In this way, the exhaust fan f is also rotated or stopped by driving / stopping the motor M by turning on / off the stop button 9. At this time, the on state of the stop button 9 means a state in which the circuit is disconnected by pressing the stop button 9, and the off state means a state in which the circuit is connected by the stop button 9 returning to its original position.

Then, the exhaust fan f is driven appropriately according to the environment around the range in cooperation with the stop button 9 under the control of the control unit 10.

At this time, the control unit 10 has the same structure as the control unit of the previous embodiment, but a configuration for differentially setting the rotational stage of the exhaust fan in accordance with the temperature in conjunction with the stop button and the sensor and the motor is added. Therefore, detailed description of the same configuration as in the previous embodiment is omitted.

The control unit 10 includes an input unit 22 for receiving a temperature signal transmitted from the sensor 13, as shown in FIG. A storage unit 25 in which rotational stages of the motor M corresponding to the temperature value corresponding to the temperature signal input by the input unit 22 are set; Comparing the value input from the stop button (9) and the value input from the sensor 13 to calculate whether to stop or drive the motor (M) in accordance with the input value of the sensor 13, the stop button (9) An operation unit 26 for driving or stopping the motor M at a corresponding rotational speed according to the first pressing and the second pressing, according to the detected value of the sensor 13; And an output unit 28 for transmitting a signal to the motor (M) on / off in accordance with the result calculated by the operation unit 26 includes.

In more detail, sensing values such as a temperature sensed by the sensor 13 are input to the input unit 22 of the controller 10. In addition, values indicating whether the stop button 9 is currently in an on state or an off state may be input through the input unit 22.

In addition, the number of rotation stages of the motor M corresponding to each detected value detected by the sensor 13 is set in the storage unit 25 of the controller 10.

For example, it is set to drive the motor M differentially in 1st stage, 2nd stage, ... 5th stage, etc. according to the detected temperature value distribution.

The calculating unit 26 checks whether the detection value of the sensor 13 is input through the input unit 22. Then, the number of rotation stages of the motor M corresponding to the detected value of the sensor 13 is drawn out from the storage unit 25. If the detected value of the drawn temperature sensor 13 corresponds to the stop of the motor M, the signal is stopped by transmitting a signal to the motor M. FIG. Otherwise, a signal is transmitted to the motor M to rotate by the rotational stage corresponding to the detected value of the sensor 13.

During the rotation of the motor M, when the stop button 9 is first pressed and an on state is input, it is checked whether the motor M is being driven, and if it is being driven, the motor M is temporarily stopped.

On the other hand, when the motor M is stopped, the sensor 13 checks the detected value again and drives the motor M with the rotational stage corresponding to the detected value of the sensor 13.

Even when the motor M is paused, the controller 10 continuously receives the value detected from the sensor 13 and monitors whether the motor M corresponds to the stop.

When the user presses the stop button 9 once more, the pause state of the motor M is released. Therefore, the exhaust fan f is rotated, and the controller 10 drives the motor M in the stage corresponding to the detection value of the sensor 13.

On the other hand, when the stop button 9 is not pressed, the controller 10 maintains the pause state of the motor M. FIG.

In this way, the calculation unit 26 checks the detected value of the sensor 13, and rotates the motor M according to the detected value of the sensor 13 when the stop button 9 is first pressed and the second pressed button. Drive or stop in the singular.

As a result, the gas range 1 according to the present invention does not simply drive or stop the exhaust fan f by turning the stop button 9 on and off, but according to the detected value detected by the sensor 13. In the state where f) is being rotated at the appropriate rotational speed, the exhaust fan f is stopped by pressing the stop button 9, and when the stop button 9 is pressed again in this state, the exhaust fan f is simply It does not rotate at a constant speed but rotates differentially according to the detected value of the sensor 13.

Hereinafter, a control method of the range hood system according to another embodiment of the present invention will be described in more detail.

6 and 7, the control method of the range hood system 5 includes (a) rotating the motor M according to the detected value of the sensor 13 (S150); (b) determining whether the detected value of the sensor 13 corresponds to the stopped state of the motor M (S160); (c) step S165 of driving the motor M in the number of stages corresponding to the sensed value of the sensor if it is not in the stopped state; (d) determining whether the stop button 9 is in an on or off state during operation (S170); (e) temporarily stopping the motor M when the stop button 9 is stopped (S175); (f) monitoring whether the detected value of the sensor 13 corresponds to a stop even in a paused state (S180); (g) when the stop button 9 is pressed once more, releases the pause state of the motor M, and returns to step (C) to execute the step (S190).

In step (a) (S150), the signal of the sensor 13 is transmitted to the calculator 26 through the input unit 22, so that the calculator 26 can confirm that the sensor 13 is operating. Then, the motor M is rotated to the appropriate number of revolutions in accordance with the detected value of the sensor 13.

In the step (b) (S160), the calculation unit 26 determines whether the value corresponds to the stop of the motor M as a result of the calculation by the detected value of the input sensor 13.

As a result of the determination, if the detected value of the sensor 13 is stopped, the motor M is completely stopped.

On the contrary, if it is not in the stopped state, step (c) (S165) is performed. That is, in step (c), the motor M is driven in the number of stages corresponding to the detected value of the sensor 9 unless it is in the stopped state.

That is, the number of rotation stages of the motor M corresponding to each detected value detected by the sensor 13 is set in the storage unit 25.

Therefore, the control unit 10 can drive the motor M in the corresponding stage by interlocking with the storage unit 25.

In the step (d) (S170), it is determined whether the stop button 9 is on or off. That is, the controller 10 receives a signal from the stop button 9 and determines whether the stop button 9 is in an on state or an off state that is not pressed.

If it is not pressed down, the process returns to step S160 and repeats.

On the contrary, if the stop button 9 is pressed in the on state, step (e) (S175) is executed. That is, in the step (e), since the stop button 9 is pressed once, the motor M is temporarily stopped.

In step (f) (S180), it is monitored whether the detected value of the sensor 13 corresponds to the stop even in the pause state of the motor (M). As a result of the monitoring, when the motor M is stopped, the motor M is completely stopped.

In the step (g) (S190), when the stop button (9) is pressed once more, the pause state of the motor (M) is released, and the motor (M) is driven in a single stage corresponding to the detected value of the sensor (13). (S165).

The gas range of the present invention can properly drive the exhaust fan by repeatedly performing the above steps.

As described above, the control method of the gas range according to the present invention, when the stop button (9) is pressed during the rotation of the exhaust fan (f), it is paused, and the detected value of the sensor (13) when pressed once more As a result, the exhaust fan f rotates differentially.

The range hood system and the control method of the present invention can calculate the temperature by converting the amount of heat by sensing the amount of gas to adjust the number of rotation of the exhaust fan, improve the structure of the stop button, the exhaust fan is rotated again after a pause In this case, it is convenient to use because it can rotate differentially according to the ambient temperature.

Claims

A case for discharging gas to the outside by an exhaust fan;

A temperature sensor mounted on the case to sense heat transferred from a burner;

A gas detector disposed on a gas pipe between the gas valve and the burner and detecting that gas remaining in the section between the gas valve and the burner flows to the burner before the burner handle is opened and ignited; And

And a control unit connected to the gas detecting unit and the temperature detecting sensor to open or close the gas valve on the gas pipe or drive the exhaust fan according to the supply and temperature of the gas after ignition

The control unit performs ventilation by driving the exhaust fan in advance by a signal of the gas detection unit when residual gas flows to the burner by rotation of a burner handle,

After the ignition range hood system for driving the exhaust fan by the temperature signal of the temperature sensor and the signal of the gas detection unit.
The method of claim 1,

After the ignition, the control unit calculates the amount of gas based on the signal received from the gas detecting unit, and converts the amount of gas into a quantity of heat to determine the value of the calorie value compared with the temperature signal of the temperature sensor to determine whether or not the temperature due to ignition A range hood system for differentially driving the fan of the range hood by determining whether the temperature due to heat.
The method of claim 1,

The gas detection unit range hood system to selectively include a flow rate sensor for detecting the flow rate of the gas, or a pressure sensor for detecting the pressure of the gas.
The method of claim 2,

The control unit includes an input unit for receiving a temperature signal and a gas signal transmitted from the gas detector and the temperature sensor;

A calorific value calculator configured to calculate calorie value based on a flow rate or a pressure signal of the gas inputted by the input unit;

A calculation unit which rotates the exhaust fan according to the result value calculated by combining the result value of the calorific value calculator and the temperature signal input by the input unit;

And an output unit configured to transmit a signal to an exhaust fan or a gas valve to turn on / off according to a result calculated by the operation unit.
The method of claim 1,

By mounting a smoke sensor to the range hood further detects the smoke around the range hood, and the control unit controls the fan rotation speed of the range hood by combining the temperature signal of the temperature sensor and the signal of the smoke sensor with each other. Range hood system characterized by.
The method of claim 1,

The control unit further comprises a timer connected to the gas valve, the range hood system that can automatically shut off the gas valve when setting the target time by the timer.
A gas detection unit disposed in the gas pipe, detecting a flow of gas remaining between the gas valve and the burner before the burner knob of the gas range is opened and ignited; And

And a second step of the control unit opening the gas valve in response to the signal received from the gas detecting unit and performing ventilation by rotating the exhaust fan.

The second step is

Calculating a gas flow detected by the gas detector in the first step as a gas amount;

Converting the calculated amount of gas into calories; And

By comparing the converted calorific value with the temperature signal received from the temperature sensor mounted on the range hood, the exhaust fan of the range hood is differentially driven by judging whether the temperature is caused by ignition or the temperature caused by surrounding heat after ignition. And controlling the range hood system.
The method of claim 7, wherein

In a first step, the gas detection unit control method of the range hood system, characterized in that for detecting the pressure or flow rate of the gas flowing in the gas pipe.
The method of claim 7, wherein

By further placing a smoke sensor on the range hood, the control unit controls the rotation speed of the exhaust fan according to the temperature, air pollution degree by comparing the temperature signal received from the temperature sensor with the signal received from the smoke sensor Range hood system control method further comprising.
A case for discharging gas to the outside by an exhaust fan;

A sensor mounted on the case to sense heat transferred from a burner;

A stop button for driving the exhaust fan; And

When the stop button is pressed for the first time, the motor of the exhaust fan is temporarily stopped by detecting the sensed value input from the sensor and the operation state of the stop button. Range hood system including a control unit for driving.
The method of claim 10,

The control unit includes an input unit for receiving a temperature signal transmitted from the sensor;

A storage unit in which rotational stages of a motor corresponding to a temperature value corresponding to a temperature signal input by the input unit are set;

Compare the value input from the stop button with the value input from the sensor to calculate whether to stop or drive the motor according to the sensor input value,

An operation unit configured to drive or stop the motor at a corresponding rotational stage according to a detected value of the sensor when the stop button is first pressed and the second pressed button; And

Range output system including an output unit for transmitting a signal to the motor on / off according to the result calculated by the operation unit.
The method of claim 10,

The sensor is a range hood system, characterized in that one of the temperature sensor, gas sensor.
(a) rotating the motor according to the detected value of the sensor;

(b) determining whether the detected value of the sensor corresponds to the stopped state of the motor;

(c) if the motor is not stopped, driving the motor in the number of stages corresponding to the detected value of the sensor;

(d) determining whether the stop button is on or off during driving;

(e) temporarily stopping the motor when the stop button is first pressed as a result of the determination;

(f) monitoring whether the sensed value of the sensor corresponds to a stop even in a paused state; And

(g) when the stop button is pressed once more, releasing the pause state of the motor, and returning to step (C) and executing the range hood system.
The method of claim 13,

In the step (c), the control unit works with the storage unit to control the range hood system to drive the motor to a value corresponding to each detected value stored in the storage unit.