KR200208172Y1 - Gas Leak Detection Auto Ejection Range Hood - Google Patents

Abstract

This paper relates to a range of stove hoods for automatic gas leakage detection. In particular, a fan motor and a lamp are connected to an AC input power source, and a selector switch for selectively selecting the strength of the fan motor is connected to the fan motor and the lamp input line. A control unit having an integrated lamp switch to turn off, a gas sensor unit having a sensor and a buzzer integrated between the AC input power source and the fan motor, and a solid state relay switch are connected to each other for artificial discharge operation and gas leakage detection. Its feature is that it can be used as an automatic discharge operation.

Description

Gas Leak Detection Auto Ejection Range Hood

1 is a block diagram of a range hood to which the present proposal is applied.

2 is a block diagram of a range hood to explain the prior art.

* Explanation of symbols for main parts of the drawings

1: AC input power 2: controller

3: input line 4: fan motor

5: Lamp 6: Selection switch

7: lamp switch 8: gas detection unit

9: detection sensor 10: flashing buzzer

11: solid state relay switch 12: on / off switch

end. Purpose of devising

(1) the technical field to which the invention belongs and its prior art

The present invention relates to a stove hood, which is installed at the upper part of a kitchen stove and allows the gas leak detection discharge and food smell discharge to be double-ventilated. Gas leakage sensor integrated into the range hood to automatically operate the leak hood when venting the leaked gas when the gas is detected to prevent gas safety accidents. It's about the hood.

In general, the kitchen in the home is attached to the stove hood on the top of the stove to position the food smell generated during cooking to maintain a comfortable kitchen, gas leaks due to the operating area of the stove It is well known that when a gas alarm is activated, the hood of the range hood is driven to exhaust or open a window to ventilate the room air.

However, the conventional range hood integrates the selection switch 106 for selecting the strength of the fan motor 104 and the lamp switch 107 for selecting the lamp 105 to the AC input power supply 101 as shown in FIG. It is configured by connecting the control unit 102, which is a food smell or gas generated when the user finds that the user touches the selection switch 106 of the control unit 102 to rotate the fan motor 104 By driving the fan to artificially discharge the gas or open the window to ventilate the room air, and when cooking to touch the lamp switch 107 to check whether the cooked contents of the cooked contents to the lamp 105 lights up Due to the brighten the surroundings.

However, the conventional stove hood function as described above is simply a manual discharge function so that the control unit 102, such as the generation of carbon monoxide during combustion of city gas, LNG, LPG, etc., leakage gas at the time of ignition, the smell of boiling when cooking food, etc. The fan motor 104 by rotating the fan motor 104 by touching the selection switch of the) and serves to force exhaust by the rotation of the fan, and the gas leakage alarm serves to alarm or shut off the gas leakage when leaking. Not only was there an uncomfortable fault to artificially open the fan or window of the fan motor 104 to vent the exhaust, but also when there is a person in the home to ventilate, but if there is no gas leak when there is no use of the alarm is no use. In addition, many children are embarrassed about what to do if an alarm sounds if they leak due to misuse of gas, especially in winter when the window is difficult to open for ventilation.

And when leaking from gas equipment or gas pipelines, there is no function to discharge the leaked gas even if the valve is blocked by alarm sound or alarm shut off function. As a result of the large and small gas explosion accidents, there are many problems such as loss of property due to fire as well as fatal casualties.

(2) Technical composition of the devise

This proposal was devised to solve the above-mentioned conventional defects. For the main purpose of the present proposal, the food smell generated when cooking is selected by connecting a gas detector with a sensor sensor integrated into the fan motor of the range hood. When the switch is selected to be artificially discharged, and when it is detected by the sensor due to gas leakage, the fan motor is activated at the same time as the alarm sound is generated due to the switching of the contactless relay switch. It is to provide automatic gas leak detection range hood that prevents gas leakage accidents and protects tremendous property and valuable lives by preventing short-circuit of the solid state relay switch.

This range of gas leak detection automatic exhaust range oven hood can connect the fan motor and the lamp to AC input power, and select the switch to selectively select the strength of the fan motor to the fan motor and the lamp input line. A control unit having an integrated lamp switch for turning on / off the lamp, a gas detecting unit having a sensing sensor and a flashing buzzer connected between the AC input power source and the fan motor, and a contactless relay switch connected to artificial discharge Its feature is that it can be used for both the operation and the automatic discharge operation by gas leakage detection.

I. Composition and action of the devise

Referring to the present invention configured as described above in detail based on the accompanying drawings as follows.

1 is a block diagram of a range hood to which the present invention is applied.

As shown in FIG. 1, the AC input power source 1 is connected to a fan motor 4 capable of illuminating the smell and gas by the rotation of the fan and a lamp 5 for illuminating the stove. The fan motor 4 and the input line 3 of the lamp 5 have a selection switch 6 for selectively controlling the strength of the fan motor 4 and a lamp switch 7 for turning the lamp 5 on and off. An integrated control unit 2 and the gas sensor connected between the AC input power source 1 and the fan motor 4 can detect a gas 9 and a flashing buzzer 10 integrally connected. Part 8 and a solid state relay switch 11 that can be connected or shorted depending on whether the gas is detected.

At this time, the on / off switch 12 is connected between the flashing buzzer 10 connected to the gas detecting unit 8 to select the ringing of the flashing buzzer 10 according to a user's selection.

In addition, the detection sensor 9 may be installed at a predetermined point of the range hood to detect gas lighter than air, and may be installed on the ground to detect gas that is heavier than air to allow automatic discharge.

This configuration is configured as described above, the smell of food during daily use, when the user selects the selector switch 6 of the control unit 2 and presses according to the strength and weakness, the power supply of the AC input power source (1) to the fan motor (4) By the operation of the fan, the indoor air, that is, the food smell generated when cooking by the stove is discharged to the outside to artificially ventilate.

On the other hand, when the gas is leaked when going out or when only the elderly or children are at home, when the leaked gas is detected by the detection sensor 9 of the gas detection unit 8, the detection sensor 9 is a solid state relay switch ( 11) When contacted, the AC input power 1 is supplied to the fan motor 4 by the ground of the solid state relay switch 11, and the fan is rotated to discharge the gas to the outside to automatically ventilate the indoor air. will be.

At this time, when the detection of the detection sensor (9) is blinking at the same time with the flashing buzzer (10) is to inform the person of attention.

At this time, if there is a user in the house, when you want to reduce the noise caused by the flashing buzzer 10 may be used by turning off the on / off switch 12 of the flashing buzzer (10).

After the discharge of the gas is completed, the contactless relay switch 11 is automatically shorted by the detection sensor 9 to stop the fan motor 4 and cut off the power supply to the flashing buzzer 10, thereby flashing the buzzer 10. When the) is stopped, the gas in the room is completely discharged to confirm that there is no residual gas.

All. Effect of design

As described above, when the gas leak detection sensor is integrally installed and installed on the range hood fan motor, the food smell generated during cooking is discharged by the user selecting the selection switch, and when the gas leak detection sensor is detected due to the gas leak, Due to the switching of the solid state relay switch, the fan motor is operated at the same time as the alarm sound is generated, and the automatic discharge by the fan continues to be automatically ventilated.If the discharged completely, the solid state relay switch is short-circuited and automatically stopped to stop the alarm sound. It is a very useful design that prevents accidents and protects tremendous wealth and precious lives.

Claims (2)

The fan motor 4 and the lamp 5 are connected to the AC input power source 1, and the power of the fan motor 4 is selectively selected to the input line 3 of the fan motor 4 and the lamp 5. In the range hood comprising a switch 6 and a control unit 2 incorporating a lamp switch 7 for turning on / off the lamp 5, between the AC input power source 1 and the fan motor 4, respectively. A gas hood detecting automatic discharge combined use hood, characterized in that the gas detection unit 8 and the solid state relay switch 11 are integrally connected and connected to the detection sensor (9) and the flashing buzzer (10). 2. The range hood according to claim 1, wherein an on / off switch (12) is connected between the buzzers connected to the gas detection unit (8).