TWM515074U - Oil smoke exhaust and combination of gas stove with fireproof function - Google Patents

Description

Range hood with fire prevention function combined with gas stove

The present invention relates to a combination of a range hood and a gas stove, which detects the change of the ambient temperature of the gas in the home kitchen at any time, and then sounds an alarm when an abnormality occurs, and immediately shuts off the gas after a preset time to maintain Fire safety device.

Range hoods and gas burners are almost essential cooking tools for modern home kitchens. Gas stoves are responsible for supplying gas for combustion, making them safer to use than manufacturers and consumers. Some people use the gas stove to cook or boil water, they will carelessly forget the ongoing cooking work to do other things or go out, so that the water in the pot evaporates and burns to cause a fire.

The purpose of this creation is to install a device that can detect the temperature change around the gas furnace by using the best position of the range hood set above the gas stove, so that an alarm sounds when an abnormal temperature is detected around the gas furnace. Even when the alarm sound is not turned off for a predetermined period of time, even if the gas passage is blocked, the fire safety of the kitchen appliance can be utilized.

The features of the creation include a temperature detecting and control unit mounted on the range hood, and a safety switch device installed in the gas stove, wherein the temperature detecting and control unit detects that the temperature around the gas furnace exceeds one When the preset value is started, the buzzer is activated to sound an alarm. When the buzzer is not turned off after a preset time, a signal is sent to the safety switch. The device turns it off, which in turn blocks the gas path of the gas stove, and transmits the message to the user's mobile phone through the radio frequency device to maintain the safety of using gas at home.

The technical means of the creation includes: a temperature detecting and controlling unit for setting in the range hood, and a safety switching device disposed in the gas stove; wherein the temperature detecting and controlling unit further comprises a first a microcontroller, and a temperature detector, a buzzer and a signal line electrically connected to the first microcontroller; the safety switching device has a second microcontroller, the second microcontroller The first microcontroller is electrically connected to the second microcontroller; the first microcontroller and the second microcontroller are pre-configured with a computer program, so that the temperature detector detects that the temperature around the gas furnace exceeds a predetermined value, that is, a signal is transmitted to the first microcontroller, and the first microcontroller controls the buzzer to sound an alarm, and when the buzzer is not turned off after a preset time, The first microcontroller transmits a signal to the second microcontroller via the signal line to turn off the safety switching device, thereby blocking the gas path of the gas furnace.

The present invention can further electrically connect a radio frequency device to the first microcontroller, and the circuit and the program design of the first microcontroller can detect that the temperature around the gas furnace exceeds a preset value by the temperature detector. At the same time, the wireless radio device is used to transmit a message to a personal mobile phone or other electronic mobile device to remind the user.

The temperature detection and control unit of the creation can be set to detect the temperature and record at any time according to the needs of different home environments, and can obtain a standard temperature value according to the temperature record during cooking, if the temperature exceeds the standard temperature When the value is set, the control buzzer sounds an alarm to remind the user that when the buzzer is activated and the alarm sound is not turned off for a predetermined time, the signal is sent to the safety switch device to turn it off, thereby controlling the gas to be turned off. To achieve fire safety.

100‧‧‧Temperature Detection and Control Unit

101‧‧‧First microcontroller

102‧‧‧Temperature Detector

103‧‧‧ buzzer

104‧‧‧ signal line

105‧‧‧Wireless radio frequency device

200‧‧‧Safety switchgear

201‧‧‧Power supply

202‧‧‧second microcontroller

203‧‧‧Key device

204‧‧‧Ignition micro switch

205‧‧‧Optoelectronics

206‧‧‧ Relay

207‧‧‧ thermocouple

208‧‧‧ solenoid valve

D‧‧‧Exhaust Hood

G‧‧‧ Gas stove

The first picture shows a schematic diagram of the combination of the range hood and the gas stove with the fire prevention function of the present creation.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present invention after reading this specification.

The preferred embodiment of the present invention comprises a temperature detecting and controlling unit 100 and a safety switching device 200; wherein the temperature detecting and controlling unit 100 is used in combination with a range hood having a fire prevention function. The temperature detecting and controlling unit 100 includes a first microcontroller 101, and is electrically connected to the first micro-controller, respectively, in a proper position of the hood D (generally located under the hood); A temperature detector 102, a buzzer 103 and a signal line 104 of the device 101 may even further be provided with a radio frequency device 105 electrically connected to the first microcontroller 101; the first microcontroller 101 is a type An integrated circuit chip that includes pre-designed control circuits and programs.

The safety switch device 200 is installed in a gas furnace G. The safety switch device 200 has a second microcontroller 202. The second microcontroller 202 is electrically connected to the first micro control via a signal line 103. The safety switch device 200 further includes a solenoid valve 208 and a thermocouple 207 connected to a gas line of the gas furnace (not shown) for opening or closing the gas passage; The thermocouple 207 is disposed at a position that can be heated by the flame (close to the position of the burner), and is connected to the electromagnetic valve 208 by a conductive wire. The electromagnetic valve 208 and the thermocouple 207 are connected to a relay 206 in common. The relay 206 is electrically connected to a transistor 205 and the second microcontroller 202. The second microcontroller 202 is an integrated circuit chip having a circuit and a program for controlling the operation of the relay 205, and The second microcontroller 202 is electrically connected to an ignition micro switch 204 and a button device. The power supply 201 is supplied to the power supply 201. The power supply 201 supplies the current required to ignite the micro switch 204.

When the gas burner G is used, the user first sets the time required for cooking from the button device 203, and then operates the ignition micro switch 204 to ignite the gas burner, and the temporarily ignited flame generates heat when the thermocouple 207 is heated. The thermal current flows into the coil of the solenoid valve 208 via the conductive line and the relay state of the path state to generate an electromagnetic force, thereby attracting the gas valve (not shown) to open the gas, and the gas flowing out is endless. At the same time, the second microcontroller 202 starts counting, and the time of counting is displayed from the display screen (not shown) provided on the button device 203, which is convenient for the user to operate. When the set time arrives, the preset circuit program of the microcontroller 202 sends a message to the transistor 205, so that the control relay 206 forms a current interruption, and the power generated by the thermocouple 207 cannot be conducted to the solenoid valve 208 via the conductive wire. As a result, the electromagnetic switch 208 is tripped to close the tile closing valve, and the gas will not continue to flow out, thereby avoiding the problem of carbon monoxide poisoning, avoiding air burning or overcooking.

On the other hand, if the temperature around the gas furnace is abnormal (higher than the preset temperature value) due to other factors, the temperature detector 102 provided in the range hood D detects the abnormal temperature value and transmits immediately. a signal to the first microcontroller 101, the first microcontroller 101 controls the buzzer 103 to actuate to sound an alarm, and when the buzzer 103 continues to operate to sound an alarm for a predetermined period of time, the device is not turned off. The first microcontroller 101 transmits a signal to the second microcontroller 202 via the signal line 104 to turn off the relay 206 of the safety switching device 200 to form a current interruption. At this time, the power generated by the thermocouple 207 cannot pass through the conductive line. Conducted to the solenoid valve 208, causing the electromagnetic switch 208 to trip and close the tile closing valve, the gas will not continue to flow out and cannot be burned, thereby avoiding safety problems that may occur. On the other hand, if the radio frequency device 105 is installed, the temperature of the gas oven is detected by the temperature detector 102 by the circuit and programming of the first microcontroller 101. When the preset value is exceeded, the wireless radio device 105 is activated to transmit a message to the personal mobile phone or other electronic mobile device to remind the user.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any limitation on the present creation, so that any modifications or changes to the creation made in the same creative spirit are made. , should still be included in the scope of protection of this creative intent.

100‧‧‧Temperature Detection and Control Unit

101‧‧‧First microcontroller

102‧‧‧Temperature Detector

103‧‧‧ buzzer

104‧‧‧ signal line

105‧‧‧Wireless radio frequency device

200‧‧‧Safety switchgear

201‧‧‧Power supply

202‧‧‧second microcontroller

203‧‧‧Key device

204‧‧‧Ignition micro switch

205‧‧‧Optoelectronics

206‧‧‧ Relay

207‧‧‧ thermocouple

208‧‧‧ solenoid valve

D‧‧‧Exhaust Hood

G‧‧‧ Gas stove

Claims (1)

The utility model relates to a range hood with a fireproof function and a gas stove, comprising: a temperature detecting and control unit, arranged in a row of range hoods, comprising: a first microcontroller; a temperature detector, electrical Connecting the first microcontroller; a buzzer electrically connected to the first microcontroller; a signal line electrically connected to the first microcontroller; and a radio frequency device electrically connected to the first micro control a safety switch device is disposed in a gas furnace, the safety switch device has a second microcontroller, and the second microcontroller is electrically connected to the first microcontroller via the signal line; wherein the temperature detector When the detector detects that the temperature around the gas furnace exceeds a predetermined value, a signal is transmitted to the first microcontroller, and the first microcontroller controls the buzzer to sound an alarm, the buzzer When the device is not turned off after a preset time, the first microcontroller transmits a signal to the second microcontroller via the signal line to turn off the safety switch device, thereby blocking the gas path of the gas furnace. At the same time, through the wireless radio frequency A message will be transmitted to a mobile electronic device.