CN107726377B - Intelligent gas stove and control method - Google Patents
Intelligent gas stove and control method Download PDFInfo
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- CN107726377B CN107726377B CN201710843395.5A CN201710843395A CN107726377B CN 107726377 B CN107726377 B CN 107726377B CN 201710843395 A CN201710843395 A CN 201710843395A CN 107726377 B CN107726377 B CN 107726377B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 127
- 238000001514 detection method Methods 0.000 claims abstract description 78
- 239000002737 fuel gas Substances 0.000 claims abstract description 21
- 230000001502 supplementing effect Effects 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention provides an intelligent gas stove and a control method, the intelligent gas stove comprises a stove body, a pot table is arranged at the top of the stove body, a stove head is arranged in the pot table, a fire seed head is arranged on one side of the stove head, the stove head is connected with a gas proportional valve through a gas pipe, the fire seed head is connected with the gas proportional valve through a fire seed pipe, a gas tee joint is arranged on the gas pipe, the gas tee joint is connected with one end of a fire seed balance pipe, and the other end of the fire seed balance pipe is connected with the fire seed pipe through the fire seed pipe tee joint; the fire balance pipe is provided with a fire gas valve; the fan is connected with one end of the air pipe, and the other end of the air pipe is connected with the furnace end; the fuel gas proportional valve, the fire fuel gas valve and the fan are electrically connected with the control device. Through the detection to pot spatial position, realize the intelligent control to gas-cooker. Through the scheme of adopting controlling means to connect gas proportional valve, kind of fire gas valve and fan, realized the automatic control of flame, the flame balance pipe of setting up can avoid the flame of kind of fire to receive the influence of furnace end gas flow.
Description
Technical Field
The invention relates to the field of gas cookers, in particular to an intelligent gas cooker and a control method.
Background
In the existing commercial gas cooker, in order to ensure the processing quality of dishes, the gas cooker is generally required to have larger firepower, the consumption of gas is larger, and the combustion of gas also can consume a large amount of indoor oxygen. Some schemes are also adopted in the prior art, such as turning off the gas supply to the burner when not in use, to save the consumed gas. Because the cook's both hands need take pot and wok, therefore open and close the operation of furnace end gas can only adopt the action of foot or waist crotch to realize, and the operation is very inconvenient.
Chinese patent document CN 105222176A describes an intelligent control device for a gas cooker, which is described as a means for detecting whether an object is covered at a fire exit by a pot position detector; the specific structure of the pot position detector is not described in this document. Because the temperature in the hearth is very high, the detector is arranged, reliable detection is ensured, and the technical difficulty is high.
In the prior art, more schemes are proposed for intelligent control of a gas stove, for example, chinese patent document CN 101082425B describes an intelligent gas stove, which realizes automatic flame size adjustment, and can disconnect an electromagnetic valve and cut off a gas path when sudden power failure occurs. Chinese patent document CN 102444915A describes detecting the gas condition by a gas sensor (8), a thermocouple (9), an ignition probe (6) and a flameout probe (7), ensuring the safety of the gas range. There is no overall solution for an intelligent gas stove based on reducing the complexity of the user's operation in the prior art.
Disclosure of Invention
The invention aims to provide an intelligent gas stove, which can make the operation of the gas stove simpler and more convenient, can maintain the intensity of fire, and can intelligently control the working state of the gas stove according to the action of an operator in a preferable scheme.
The invention aims to provide a control method of the intelligent gas stove, which can intelligently control the working state of the gas stove according to the action of an operator.
In order to solve the technical problems, the invention adopts the following technical scheme: an intelligent gas stove comprises a stove body, wherein a pot is arranged at the top of the stove body, a stove head is arranged in the pot, a fire head is arranged on one side of the stove head, the stove head is connected with a gas proportional valve through a gas pipe, the fire head is connected with the gas proportional valve through a fire pipe, a gas tee joint is arranged on the gas pipe, the gas tee joint is connected with one end of a fire balance pipe, and the other end of the fire balance pipe is connected with the fire pipe through the fire pipe tee joint;
the fire balance pipe is provided with a fire gas valve;
the fan is connected with one end of the air pipe, and the other end of the air pipe is connected with the furnace end;
The fuel gas proportional valve, the fire fuel gas valve and the fan are electrically connected with the control device.
In the preferred scheme, the air pipe is also provided with an air pipe tee joint, the air pipe tee joint is connected with a fire type air supplementing pipe, and the fire type air supplementing pipe is connected with a fire type head.
In the preferred scheme, the tuber pipe tee bend in, the both ends and the tuber pipe of inner chamber are connected, the lateral wall of inner chamber is equipped with kind of fire air supply mouth, kind of fire air supply mouth and kind of fire air supply pipe connection, the kind of fire air supply mouth at the inner chamber is equipped with the windshield, the windshield has the fan housing lateral wall around kind of fire air supply mouth, still is equipped with the fan housing diapire, the fan housing diapire is located the position of kind of fire air supply mouth upper reaches.
In the preferred scheme, the fire type air supply pipe is provided with a fire type air supply valve, and the fire type air supply valve is electrically connected with the control device.
In the preferred scheme, a pot pressure detector is arranged at the position of the pot platform;
in the pressure detector of the pot, a detection rod is movably arranged on a detection sliding seat, and the upper end of the detection rod extends out of the upper surface of the pot platform;
A spring for resetting is arranged between the detection rod and the detection sliding seat;
A sensor is arranged at the bottom of the detection rod;
The sensor is electrically connected with the control device.
In a preferred scheme, the sensor is:
a touch rod is arranged at the bottom of the detection rod, and a contact switch is arranged on the stove body;
Or a trigger disc is arranged at the bottom of the detection rod, and a Hall sensor is arranged on the stove body;
or a magnet block is arranged at the bottom of the detection rod, and a giant magneto-resistance sensor is arranged on the stove body.
In the preferred scheme, detect the slide and be located the position that is close to detection pole both ends, be equipped with the stopper at detection pole middle part, be equipped with the spring between the detection slide and the stopper that are located the below.
In the preferred scheme, the device is also provided with a photoelectric detection device, and the photoelectric detection device is provided with at least one light ray positioned above the pot platform and used for detecting the position of the pot;
In the photoelectric detection device, a photoelectric emitter is positioned on a back plate, and a photoelectric receiver is positioned on the upper end face of a stove body;
the photoelectric detection device is electrically connected with the control device.
In the preferred scheme, in the control device, the power supply module and the input module are electrically connected with the main control chip, and the main control chip is electrically connected with the output module and the ignition module.
The control method of the intelligent gas stove comprises the following steps:
s1, starting an intelligent control mode;
the control device sets the opening of a furnace end proportional valve in the fuel gas proportional valve according to preset conditions;
s3, when the pressure detector of the cooker detects that the pressure is pressed down, the control device controls the fire valve in the fuel gas proportional valve to be opened, and the control device controls the ignition module to start ignition, so as to ignite the fire of the fire head;
s4, after a time delay is t 1, opening a furnace end proportional valve in the gas proportional valve to a set opening degree, supplying gas to the furnace end, and igniting the flame of the furnace end;
s5, starting the ignition, and after a time delay t 2, controlling the fan to start by the control device so as to supply air to the furnace end;
s6, when the pressure detector of the pot detects that the pressure detector is released, the control device controls the photoelectric detection device to start, and when the photoelectric detection device detects the pot, the control device does not execute operation;
When the photoelectric detection device does not detect the pot, starting timing, and after a time delay t 3, executing one or more modules in the subprogram of the next step;
if the photoelectric detection device detects the pot again during the timing period, the control device does not execute the operation;
if the pressure detector of the pot detects that the pressure is pressed again, the control device closes the photoelectric detection device and one or more steps s 3-s 5 are executed again.
S7, the subprogram comprises:
a. Closing a furnace end proportional valve in the fuel gas proportional valve;
b. Closing the photoelectric detection device;
c. The fan is turned off after a time delay t 4;
d. closing the fire gas valve after a time delay t 5;
e. Closing the fire type air supplementing valve after a time delay t 6;
f. Closing a fire valve in the fuel gas proportional valve after a time delay t 7;
through the steps, the intelligent control of the intelligent gas stove is realized.
According to the intelligent gas stove and the control method, the control device is adopted to connect the gas proportional valve, the fire gas valve and the fan, so that automatic control of flames is realized, and the arranged fire balance pipe can prevent flames of fires from being influenced by gas flow of the burner. The intelligent control of the gas stove can be realized by detecting the position of the pot through the set pot pressure detector and the photoelectric detection device, and especially when an operator needs to turn the pot to operate, the intelligent control can be correctly controlled, the control is reliable, and misoperation can be avoided to a greater extent.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic front view of the burner part structure of the present invention.
Fig. 4 is a schematic bottom view of the burner part structure of the present invention.
Fig. 5 is a schematic structural diagram of a fire air supply structure in the present invention.
Fig. 6 is a schematic structural view of a tee joint of an air duct in the present invention.
Fig. 7 is a schematic diagram of the circuit control of the present invention.
Fig. 8 is a schematic view of a structure of a pressure detector of a pot in the present invention.
In the figure: the fire source head 1, the furnace head 2, the gas tee joint 3, the gas pipe 4, the fire source balance pipe 5, the fire source gas valve 6, the fire source air supplementing pipe 7, the fire source air supplementing valve 8, the gas inlet 9, the gas control valve 10, the gas proportional valve 11, the main control chip 12, the fire source pipe 13, the air pipe 14, the air pipe tee joint 15, the inner cavity 151, the air cover side wall 152, the air cover bottom wall 153, the fire source air supplementing port 154, the time delay relay 16, the fan 17, the pot pressure detector 18, the detection rod 181, the detection slide seat 182, the limiting block 183, the spring 184, the trigger rod 185, the Hall sensor 186, the photoelectric emitter 19, the photoelectric receiver 20, the flameout sensor 21, the water feeder 22, the input module 23, the sparking module 24, the power module 25, the protection electromagnetic valve 26, the fire source pipe tee joint 27, the stove body 28, the pot 29, the back plate 30, the output module 31 and the waste heat pot 32.
Detailed Description
Example 1:
As shown in fig. 1-4, an intelligent gas stove comprises a stove body 28, a pot table 29 is arranged at the top of the stove body 28, a burner 2 is arranged in the pot table 29, a fire head 1 is arranged on one side of the burner 2, the burner 2 is connected with a gas proportional valve 11 through a gas pipe 4, the fire head 1 is connected with the gas proportional valve 11 through a fire pipe 13, a gas tee joint 3 is arranged on the gas pipe 4, the gas tee joint 3 is connected with one end of a fire balance pipe 5, and the other end of the fire balance pipe 5 is connected with the fire pipe 13 through the fire pipe tee joint; through the fire balance pipe 5 that sets up, can lead the gas in the some gas pipes 4 to the fire in-tube 13, the advantage of this structure is, because after the furnace end proportional valve in the gas proportional valve 11 opens, can reduce the gas pressure in the fire in-tube 13, the gas pressure in the fire balance pipe 5 that sets up through introducing the gas in the fire in-tube 13 makes the gas pressure in the fire in-tube 13 keep enough big, so that the flame that makes fire head 1 produce has sufficient length, thereby ensure in the control process that follows, is enough to ignite the gas of furnace end 2, this is especially critical for intelligent control process.
The fire balance pipe 5 is provided with a fire gas valve 6; the arranged fire gas valve 6 is convenient for adjusting the on-off of the fire balance pipe 5 so as to avoid the gas pressure loss in the fire pipe 13 when the furnace end proportional valve of the gas proportional valve 11 is not opened.
In the preferred scheme, a temperature sensor is further arranged at the position of the fire head 1, and the temperature sensor is used for detecting the temperature of the flame of the fire head 1 so as to avoid extinguishing the fire under the working state. The flameout sensor 21 is also provided at the position of the pan 29 for detecting the combustion state of the burner 2, so as to avoid being extinguished in the working state. The temperature sensor and the flameout sensor 21 are both electrically connected to the control device.
The fan 17 is connected with one end of the air pipe 14, and the other end of the air pipe 14 is connected with the furnace end 2;
the gas proportional valve 11, the fire gas valve 6 and the fan 17 are electrically connected with a control device. With the structure, the gas proportional valve 11, the fire gas valve 6 and the fan 17 are controlled by the control device, so that intelligent control of the gas stove is realized. In the preferred embodiment, as shown in fig. 7, in the control device, the power module 25 and the input module 23 are electrically connected with the main control chip 12, and the main control chip 12 is electrically connected with the output module 31 and the ignition module 24.
In the preferred scheme, as shown in fig. 3-6, an air duct tee 15 is further arranged on the air duct 14, the air duct tee 15 is connected with the fire type air supplementing duct 7, and the fire type air supplementing duct 7 is connected with the fire type head 1. With this structure, the burner is used for supplying air to the fire head 1 so as to make the combustion of the fire gas more sufficient.
In the preferred embodiment, as shown in fig. 6, in the air duct tee 15, two ends of the inner cavity 151 are connected with the air duct 14, a fire type air supply port 154 is arranged on the side wall of the inner cavity 151, the fire type air supply port 154 is connected with the fire type air supply duct 7, a wind shield is arranged on the fire type air supply port 154 of the inner cavity 151, the wind shield has a wind shield side wall 152 surrounding the fire type air supply port 154, a wind shield bottom wall 153 is further arranged, and the wind shield bottom wall 153 is positioned at the upstream position of the fire type air supply port 154. With this structure, the high-speed wind is prevented from directly striking the flame supply port 154, and the large fluctuation of the air supply of the flame head 1 is prevented from extinguishing the flame.
In the preferred scheme shown in fig. 4, a fire type air compensating valve 8 is arranged on the fire type air compensating pipe 7, and the fire type air compensating valve 8 is electrically connected with a control device. With this structure, the automatic control of the fire type air supply is realized.
In a preferred embodiment, as shown in fig. 1, 2 and 8, a pot pressure detector 18 is provided at the location of the pot 29;
In the pressure detector 18, a detecting rod 181 is movably arranged on a detecting slide seat 182, and the upper end of the detecting rod 181 extends out of the upper surface of the pot table 29;
A spring 184 for restoring is provided between the detection lever 181 and the detection slider 182;
a sensor is arranged at the bottom of the detection rod 181;
The sensor is electrically connected with the control device. With this configuration, when the pan is placed on the pan table 29, the detection lever 181 is depressed, thereby triggering the sensor to send an electrical signal, and the control device detects the state of the pan.
In a preferred scheme, the sensor is:
a touch rod is arranged at the bottom of the detection rod 181, and a contact switch is arranged on the stove body 28;
Or a trigger plate 185 is arranged at the bottom of the detection rod 181, and a Hall sensor 186 is arranged on the stove body 28;
Or a magnet block is arranged at the bottom of the detection rod 181, and a giant magneto-resistance sensor is arranged on the stove body 28. All three schemes are possible, and the hall sensor 186 scheme is preferred in this example because of lower energy consumption and higher reliability.
In the preferred embodiment, as shown in fig. 8, two detection sliding seats 182 are provided and are located at positions close to two ends of the detection rod 181, a limiting block 183 is arranged in the middle of the detection rod 181, and a spring 184 is arranged between the detection sliding seat 182 and the limiting block 183. With this structure, when the pan leaves the pan table 29, the detection lever 181 is sprung up, and the sensor is triggered to send an electric signal, so that the control device detects the state of the pan leaving.
During the operation of chefs, the cooks need to be overturned frequently, and during the overturned process, the flame needs to be kept burning. Proper control operation cannot be achieved with only the pan pressure detector 18. The preferred embodiment is as shown in fig. 1, and the photoelectric detection device is provided with at least one light ray above the pot table 29 for detecting the position of the pot;
In the photoelectric detection device, a photoelectric emitter 19 is positioned on a back plate 30, and a photoelectric receiver 20 is positioned on the upper end face of a stove body 28;
The photoelectric detection device is electrically connected with the control device. With the structure, whether the pot is in a pot-tilting state or not can be detected through the photoelectric detection device. Thereby perfecting the control scheme and laying a structural hardware foundation for further realizing the intelligent control of the gas stove. To obtain a more optimal control effect, further optimization of the control method is also required.
Example 2:
The control method of the intelligent gas stove comprises the following steps:
s1, starting an intelligent control mode; the user selects whether to adopt an intelligent control mode or a manual control mode through the operation panel.
The control device sets the opening of a furnace end proportional valve in the fuel gas proportional valve 11 according to preset conditions; the preset condition here means that the magnitude of the fire power required by the operator, for example, the flame for quick-frying and the flame for stir-frying are significantly different. The former requires a flame that is greater than the latter.
S3, when the pressure detector 18 of the cooker detects that the pressure is pressed down by the bottom of the cooker, the control device controls the fire valve in the fuel gas proportional valve 11 to be opened, and the control device controls the ignition module 24 to start ignition, so as to ignite the fire of the fire head 1;
s4, after a time delay of t 1, t 1 is preferably 1-3 seconds, a furnace end proportional valve in the fuel gas proportional valve 11 is opened to a set opening degree, gas is supplied to the furnace end 2, and flame of the furnace end is ignited by a fire;
s5, starting the ignition, and after a time delay t 2, preferably adopting 3-10 seconds for t 2, and controlling the fan 17 to start by a control device to supply air to the furnace end; so that the fuel gas of the furnace end can be fully combusted.
S6, when the pot pressure detector 18 detects that the pot is released, namely the pot leaves from the pot table 29, the control device controls the photoelectric detection device to start, and when the photoelectric detection device detects the pot, the control device does not execute operation;
When the photodetection device does not detect the pan, i.e. the optical path between the photoemitter 19 and the photoreceiver 20 is not cut off, starting timing, and after a time delay t 3, executing one or more modules in the subroutine of the next step; t 3 is preferably 1 to 10 seconds, in this case 3 seconds later, the next step is performed. The purpose of setting the delay t 3 is to avoid the operator from operating unnormally, so that the pot leaves the detection range of the photoelectric detection device in a short time, and after setting the delay t 3, the too frequent execution action can be avoided.
If the photoelectric detection device detects the pot again during the timing period, the control device does not execute the operation;
If the pressure sensor 18 detects a depression again, the control means turns off the photo detection means and re-executes one or more of steps s3 to s 5. Here, if one of s3 to s5 is in the executed state before, for example, the fire is still present, the step of igniting the fire is not needed to be executed again.
S7, the subprogram comprises:
a. Closing a furnace end proportional valve in the gas proportional valve 11;
b. Closing the photoelectric detection device;
c. the fan 17 is turned off after a time delay t 4; the following timings are all resumed from the timing t 3. t 4 is preferably 1to 10 seconds. In this example 1 second is used.
D. A time delay t 5 is used for closing the fire type gas valve 6; t 6 is performed after step a is performed, preferably for 0 to 3 seconds. In this example, 0 seconds is used. I.e. simultaneously with closing the burner proportional valve.
E. The fire type air compensating valve 8 is closed after a time delay t 6; t 6 is preferably 1 to 10 seconds. In this example 1 second is used. I.e. the fan is turned off simultaneously.
F. The fire valve in the fuel gas proportional valve 11 is closed after a time delay t 7; and t 7 is 3-30 seconds. In this example 15 seconds are used.
Through the steps, the intelligent control of the intelligent gas stove is realized.
Example 3:
The control method of the present invention is further described below with a specific example. An intelligent gas stove comprises a stove body 28, wherein a pot table 29 and a back plate 30 are arranged at the top of the stove body 28, a water feeder 22 is arranged on the back plate, and a waste heat pot 32 is arranged below the water feeder 22. The boiler stage 29 is internally provided with a burner 2, one side of the burner 2 is provided with a fire head 1, a gas inlet pipe is connected with a gas inlet 9 of a gas proportional valve 11, two groups of electromagnetic valves are arranged in the gas proportional valve 11, one group connected with the burner 2 is a proportional electromagnetic valve, called a burner proportional valve, and an on-off electromagnetic valve connected with the fire head 1 is called a fire valve. The main control chip 12 outputs two paths of control signals to the fuel gas proportional valve 11, one group is a switching signal for controlling an on-off electromagnetic valve connected with the fire head 1, and the other group is a proportional electromagnetic valve with PWM duty ratio electric signal control connected with the furnace end 2. Wherein the electric control part of the proportional valve is electrically connected with the main control chip 12, and the opening degree is controlled by the PWM duty ratio electric signal output by the main control chip 12. The control mode is PID control. And a knob or an LED panel is also arranged and is electrically connected with the input module 23 of the main control chip 12, and an adjusting signal is input into the main control chip 12. A gas control valve 10 is also arranged, and the opening degree is manually adjusted or manually opened and closed through the gas control valve 10. When the intelligent control mode is required, the opening degree of the gas control valve 10 should be adjusted to the maximum. The flameout sensor 21 is also arranged on the periphery of the pot 29, and when flameout faults occur, the protection electromagnetic valve 26 can be automatically closed to cut off the inlet of the whole fuel gas, so that the safety is ensured.
A fire balance pipe 5 is arranged between the gas pipe 4 and the fire pipe 13, a fire gas valve 6 is arranged on the fire balance pipe 5, the fire gas valve 6 is an electric control proportional valve, the fire gas valve 6 is connected with an output module of the main control chip 12, and the opening degree control is preferably performed by a PWM duty ratio electric signal output by the main control chip 12, and the opening degree control can also be performed by adopting only switch control. The temperature sensor near the fire head 1 is electrically connected with the input module 23 of the main control chip 12 to input a temperature detection signal to the main control chip 12. The opening degree of the fire gas valve 6 is controlled according to the temperature of the fire of the furnace end in the combustion state of the temperature sensor. The diameter of the fire balance pipe 5 is smaller than that of the gas pipe 4.
As shown in fig. 3, the air duct 14 connects the blower 17 with the burner 2, so that the combustion efficiency of the gas is improved by using the blower, and the air and the gas are fully mixed in the burner and then combusted. The air pipe 14 is connected with the fire type air supplementing pipe 7 through an air pipe tee joint 15, the fire type air supplementing pipe 7 is communicated with the fire type head 1, and the diameter of the fire type air supplementing pipe 7 is smaller than that of the air pipe 14. The air duct tee 15 has an expanded diameter structure, and a wind shield is arranged at the position of the flame air supply port 154. The fire type air supplementing pipe 7 is provided with a fire type air supplementing valve 8. Because of lack of feedback signal in the control of the air quantity, the fire air compensating valve 8 in this example adopts a manual flow regulating valve. The adjustment can be carried out once without changing. The driving motor of the fan 17 adopts a variable frequency motor, a frequency converter of the variable frequency motor is electrically connected with an output module 31 of the main control chip 12, and the rotating speed and the time delay start-stop time of the fan 17 are controlled through one path of PWM signals output by the main control chip 12.
The cooker pressure detector 18 is also arranged at the position of the cooker table 29, the cooker pressure detector 18 is electrically connected with the main control chip 12, and the main control chip 12 is electrically connected with the ignition module 24. In the pressure detector 18 for a pot, a detecting rod 181 is movably installed in a detecting slide seat 182, a limiting block 183 is arranged on the detecting rod 181, the end part of the detecting rod 181 extends out of a pot table 29, a spring 184 is arranged between the limiting block 183 and the detecting slide seat 182 below, so that the end of the detecting rod 181 tends to extend out of the pot table 29, a triggering rod 185 made of metal is fixedly arranged at the bottom of the detecting rod 181, a Hall sensor 186 is arranged on one side of the triggering rod 185, and when the detecting rod 181 is pressed down by the pot or the pot is lifted up by the pot, the triggering rod 185 moves up and down, so that the Hall sensor 186 generates different position signals. The device is also provided with a photoelectric detection device, the photoelectric emitter 19 and the photoelectric receiver 20 are arranged at the position above the pot table 29, and the light line between the photoelectric emitter 19 and the photoelectric receiver 20 is blocked by the pot when the pot is turned over by the end; in this example, the photo-emitter 19 is disposed on the back plate 30, and the light emitted from the photo-emitter 19 is obliquely incident downward to the photo-receiver 20 at the edge of the oven body 28, thereby forming a closed optical path.
The photoelectric transmitter 19 and the photoelectric receiver 20 are electrically connected with the main control chip 12, and the main control chip 12 is electrically connected with the fuel gas proportional valve 11. With this structure, the signal of the top pan can be detected by the photoelectric emitter 19 and the photoelectric receiver 20 arranged on the pan table 29, and the flame of the burner 2 can not be extinguished in the process of the top pan. In this example, the intelligent control of the gas cooker is realized by adopting the common control of the pot pressure detector 18 and the photoelectric detection device. In this example, the control is such that when in the intelligent control mode, the pot is placed on the pot stand 29 and the ignition module 24 automatically ignites. After the pot is lifted up, the main control chip 12 starts the photoelectric detection device after delaying for 0-3 seconds to detect whether the optical paths of the photoelectric emitter 19 and the photoelectric receiver 20 are cut off, and if not, the gas proportional valve 11 is closed after delaying for 1-3 seconds. If so, the state of the fuel gas proportional valve 11 is kept unchanged. With this configuration, the flame can be automatically controlled according to the manner of use of the operator. For example, during a frying process, if an operator turns over the pan, the flame will not be turned off automatically, and if the operator goes to the pan, washes the pan or adds a seasoning, the flame will be turned off briefly from the burner 2. And starts timing, after the preset time is reached, the flame of the ignition head 1 is also automatically closed, and after the preset time is reached, the protection electromagnetic valve 26 is closed, and the whole fuel gas supply is cut off. The starting knob or the LED control screen needs to be pressed again to strike fire for starting. If the pot is placed on the pot table 29 within the preset time, the gas proportional valve 11 is automatically opened, and the furnace end 2 is ignited; if the fire head 1 is closed, the fuel gas proportional valve 11 is opened, and the ignition module 24 is controlled to automatically ignite.
A purely manual mode may also be employed to control ignition with a knob or handle.
The above embodiments are merely preferred embodiments of the present application, and should not be construed as limiting the present application, and the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without collision. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.
Claims (4)
1. The utility model provides an intelligent gas-cooker, includes kitchen body (28), and the top of kitchen body (28) is equipped with a table (29), is equipped with furnace end (2) in a table (29), is equipped with fire head (1) in one side of furnace end (2), and furnace end (2) are connected with gas proportional valve (11) through gas pipe (4), and fire head (1) are connected with gas proportional valve (11) through fire pipe (13), characterized by: a gas tee joint (3) is arranged on the gas pipe (4), the gas tee joint (3) is connected with one end of a fire balance pipe (5), and the other end of the fire balance pipe (5) is connected with a fire pipe (13) through the fire pipe tee joint;
a fire type gas valve (6) is arranged on the fire type balance pipe (5);
the fan (17) is connected with one end of the air pipe (14), and the other end of the air pipe (14) is connected with the furnace end (2);
The gas proportional valve (11), the fire gas valve (6) and the fan (17) are electrically connected with the control device;
An air pipe tee joint (15) is further arranged on the air pipe (14), the air pipe tee joint (15) is connected with the fire seed supplementing air pipe (7), and the fire seed supplementing air pipe (7) is connected with the fire seed head (1);
in the air pipe tee joint (15), two ends of an inner cavity (151) are connected with an air pipe (14), a fire type air supplementing opening (154) is formed in the side wall of the inner cavity (151), the fire type air supplementing opening (154) is connected with a fire type air supplementing pipe (7), a wind shield is arranged on the fire type air supplementing opening (154) of the inner cavity (151), the wind shield is provided with a wind shield side wall (152) surrounding the fire type air supplementing opening (154), and a wind shield bottom wall (153) is further arranged, and the wind shield bottom wall (153) is located at the position upstream of the fire type air supplementing opening (154);
the fire seed air supplementing pipe (7) is provided with a fire seed air supplementing valve (8), and the fire seed air supplementing valve (8) is electrically connected with the control device;
A pot pressure detector (18) is arranged at the position of the pot table (29);
In the pressure detector (18), a detection rod (181) is movably arranged on a detection sliding seat (182), and the upper end of the detection rod (181) extends out of the upper surface of a pot table (29);
a spring (184) for resetting is arranged between the detection rod (181) and the detection slide seat (182);
a sensor is arranged at the bottom of the detection rod (181);
The sensor is electrically connected with the control device;
The device is also provided with a photoelectric detection device, and the photoelectric detection device is provided with at least one light ray which is positioned above the pot table (29) and used for detecting the position of the pot;
In the photoelectric detection device, a photoelectric emitter (19) is positioned on a back plate (30), and a photoelectric receiver (20) is positioned on the upper end face of a stove body (28);
the photoelectric detection device is electrically connected with the control device;
In the control device, a power supply module (25) and an input module (23) are electrically connected with a main control chip (12), and the main control chip (12) is electrically connected with an output module (31) and a lighting module (24).
2. The intelligent gas stove according to claim 1, wherein the sensor is:
a touch rod is arranged at the bottom of the detection rod (181), and a contact switch is arranged on the stove body (28);
Or a trigger disc (185) is arranged at the bottom of the detection rod (181), and a Hall sensor (186) is arranged on the stove body (28);
or a magnet block is arranged at the bottom of the detection rod (181), and a giant magneto resistance sensor is arranged on the stove body (28).
3. The intelligent gas stove according to claim 1, wherein: the number of the detection sliding seats (182) is two, the detection sliding seats are positioned close to the two ends of the detection rod (181), a limiting block (183) is arranged in the middle of the detection rod (181), and a spring (184) is arranged between the detection sliding seats (182) and the limiting block (183) which are positioned below.
4. A control method using the intelligent gas cooker as claimed in claim 1, characterized by comprising the steps of:
s1, starting an intelligent control mode;
The control device sets the opening of a furnace end proportional valve in the gas proportional valve (11) according to preset conditions;
s3, when the pressure detector (18) of the cooker detects that the pressure is pressed down, the control device controls the fire valve in the fuel gas proportional valve (11) to be opened, and the control device controls the ignition module (24) to start ignition, so as to ignite the fire of the fire head (1);
S4, after a period of time t1, opening a furnace end proportional valve in the gas proportional valve (11) to a set opening degree, supplying gas to the furnace end (2), and igniting furnace end flame;
s5, starting from ignition, and after a time delay t2, controlling a fan (17) to start by a control device so as to supply air to the furnace end;
S6, when the pressure detector (18) of the cooker detects that the cooker is released, the control device controls the photoelectric detection device to start, and when the photoelectric detection device detects the cooker, the control device does not execute operation;
When the photoelectric detection device does not detect the pot, starting timing, and after a time delay t3, executing one or more modules in the subprogram of the next step;
if the photoelectric detection device detects the pot again during the timing period, the control device does not execute the operation;
If the pressure detector (18) of the cooker detects that the pressure is pressed again, the control device turns off the photoelectric detection device and one or more steps s 3-s 5 are executed again;
s7, the subprogram comprises:
a. closing a furnace end proportional valve in the gas proportional valve (11);
b. Closing the photoelectric detection device;
c. The fan (17) is turned off after a time delay t 4;
d. closing the fire gas valve (6) after a time delay t 5;
e. Closing the fire type air supplementing valve (8) after a time delay t 6;
f. Closing a fire valve in the fuel gas proportional valve (11) after a time delay t 7;
through the steps, the intelligent control of the intelligent gas stove is realized.
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| CN201710843395.5A CN107726377B (en) | 2017-09-18 | 2017-09-18 | Intelligent gas stove and control method |
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| CN201710843395.5A CN107726377B (en) | 2017-09-18 | 2017-09-18 | Intelligent gas stove and control method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112066426A (en) * | 2020-09-21 | 2020-12-11 | 北京金丽厨厨房设备有限公司 | Energy-saving environment-friendly gas big pot stove |
| CN115560361B (en) * | 2022-07-18 | 2023-05-23 | 信阳市紫阳厨具设备有限公司 | Energy-saving double-frying single-temperature range |
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