CN113464987B - Temperature-control intelligent cooking stove - Google Patents
Temperature-control intelligent cooking stove Download PDFInfo
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- CN113464987B CN113464987B CN202110931163.1A CN202110931163A CN113464987B CN 113464987 B CN113464987 B CN 113464987B CN 202110931163 A CN202110931163 A CN 202110931163A CN 113464987 B CN113464987 B CN 113464987B
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- 238000010411 cooking Methods 0.000 title claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000003860 storage Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 239000002737 fuel gas Substances 0.000 claims description 3
- 235000014347 soups Nutrition 0.000 abstract description 34
- 238000010304 firing Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 235000013311 vegetables Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 101001018196 Homo sapiens Mitogen-activated protein kinase kinase kinase 5 Proteins 0.000 description 4
- 102100033127 Mitogen-activated protein kinase kinase kinase 5 Human genes 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 235000013547 stew Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- 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
Abstract
A temperature-control intelligent cooking stove comprises a gas cooking stove body and an electromagnetic valve; the device also comprises a detection mechanism and a control mechanism; the electromagnetic valve is arranged in the lower end shell of the cooking stove body, the detection mechanism comprises a storage battery, a charging socket, a power switch, a thermistor and a transmitting sub-circuit which are arranged in the shell and are electrically connected, and the shell is arranged on the cooker cover; the control mechanism comprises a storage battery A, a charging socket A, a power switch A, a receiving sub-circuit and a prompting sub-circuit which are arranged in the shell A and are electrically connected; one of the wires of one of the air inlet electromagnetic valves of the cooking stove is disconnected into two sections, and the control signal input end and the control signal output end of the receiving sub-circuit are respectively and electrically connected with the two sections of one of the wires. This novel in having effectively prevented that the user from firing soup dish, if the user goes out because of various reasons, perhaps because can not the first time discovery problem when the family's soup burns out, lead to the emergence of serious secondary accident. The invention has good application prospect.
Description
Technical Field
The invention relates to the field of intelligent household equipment, in particular to a temperature-control intelligent cooking stove.
Background
A natural gas stove (also called a cooking range) is an extremely wide range of heating appliances used in the household and restaurant fields. With the development of industrial technology and the progress of technology, the cooking stove has more and more perfect functions, and provides better and safer guarantee for people to cook food. The current more advanced cooking stove can realize the function of cutting off the input air source when flameout and air leakage occur in cooking, and can also output an alarm signal to prompt a user to discharge the problem.
Although the existing cooking range has certain safety, the functions are relatively imperfect due to structural limitations. For example, if a user uses a cooker to cook soup and dishes, the user goes out for various reasons or cannot find a problem at the first time when the soup is burned dry at home, so that dishes and the like are burned out and cannot be eaten, and secondary disaster accidents such as fire disaster and the like can occur.
Disclosure of Invention
In order to overcome the defects that the prior cooking stove is limited in structure, a user cannot find a problem in the first time when using the cooking stove to cook soup and dishes, dishes and the like are burnt out and cannot be eaten, and secondary disaster accidents such as fire disaster and the like are likely to occur, the invention provides the temperature-control intelligent cooking stove based on the cooking stove body with flameout and air leakage detection functions.
The technical scheme adopted for solving the technical problems is as follows:
a temperature-control intelligent cooking stove comprises a gas cooking stove body and an electromagnetic valve; the device is characterized by also comprising a detection mechanism and a control mechanism; the valve core of the electromagnetic valve is provided with a through hole, the electromagnetic valve is arranged in the lower end shell of the cooking stove body, and two ends of the electromagnetic valve are connected in series between one of the stove plate lower air inlet electromagnetic valve of the cooking stove and one end of the main air inlet pipe of the cooking stove body through pipelines; the detection mechanism comprises a storage battery, a charging socket, a power switch, a thermistor and a transmitting sub-circuit which are arranged in a shell, and the shell is arranged on the cooker cover; one end of the thermistor is electrically connected with the signal input end of the transmitting sub-circuit; the control mechanism comprises a storage battery A, a charging socket A, a power switch A, a receiving sub-circuit and a prompting sub-circuit which are arranged in a shell A; the signal output end of the receiving sub-circuit is electrically connected with the signal input end of the prompting sub-circuit; the power output end of the receiving sub-circuit is electrically connected with the power input end of the electromagnetic valve, one of the wires of the under-plate air inlet electromagnetic valve of the cooking stove is disconnected into two sections, and the control signal input end and the control signal output end of the receiving sub-circuit are respectively electrically connected with the two sections of one of the wires.
Further, the temperature sensing surface of the thermistor is positioned outside the lower end of the shell, and the temperature sensing surface of the thermistor is clung to the outer upper end of the cooker cover.
Further, the electromagnetic valve is a normally open valve core electromagnetic valve, and after the valve core of the electromagnetic valve is closed, the through hole of the valve core of the electromagnetic valve can close part of fuel gas entering from the air inlet end and exiting from the air outlet end of the electromagnetic valve.
Further, the thermistor of the detection mechanism is a negative temperature coefficient thermistor.
Further, the transmitting sub-circuit of the detection mechanism comprises a power switch B, a relay, an NPN triode, an adjustable resistor and a wireless transmitting circuit module which are electrically connected; the positive power input ends of the two relays are connected with the positive power input ends of the wireless transmitting circuit module, one ends of the two adjustable resistors are connected, the other ends of the two adjustable resistors are connected with the bases of the two NPN triodes respectively, the collectors of the two NPN triodes are connected with the negative power input ends of the two relays respectively, the emitters of the two NPN triodes are connected with the negative power input ends of the wireless transmitting circuit module, the control contact ends and the normally open contact ends of the two relays are connected with the two contacts of the wireless transmitting circuit module under the two wireless keys respectively, and the two ends of the power switch B are connected between the other ends of the adjustable resistors and the base of the first NPN triode in series.
Further, the receiving sub-circuit of the control mechanism comprises an electrically connected relay, an NPN triode, a resistor and a wireless receiving circuit module, wherein the positive power input end of the wireless receiving circuit module is connected with the positive power input end of the first relay, the control power input end of the first relay and the positive power input end of the second relay, the negative power input end of the wireless receiving circuit module is connected with the emitting electrodes of the two NPN triodes, the first output end and the second output end of the wireless receiving circuit module are respectively connected with one end of the two resistors, the other end of the two resistors is respectively connected with the base electrodes of the two NPN triodes, and the collecting electrodes of the two NPN triodes are connected with the negative power input ends of the two relays.
Further, the prompting sub-circuit of the control mechanism comprises a silicon controlled rectifier and a buzzer which are electrically connected, and the cathode of the silicon controlled rectifier is connected with the power input end of the positive pole of the buzzer.
The invention has the beneficial effects that: the cooking stove body with flameout and air leakage detection functions is based on the cooking stove body, a user puts the shell on a cooker cover which needs to be monitored and controlled according to the needs before using the cooking stove, the temperature sensing surface of the thermistor is tightly attached to the upper end of the cover, and the cooker can transmit heat to the thermistor in real time when cooking and baking soup and dishes, so that the thermistor can synchronously change according to different temperatures and resistance values. After the soup dish is boiled or the moisture in the soup dish is dried, the wireless transmitting circuit module can respectively transmit different two paths of wireless signals; when the receiving sub-circuit receives two paths of wireless signals respectively, the receiving sub-circuit can automatically adjust the small-entering natural gas, and further can prevent soup dishes from being burnt out in a short time (selectable function) under the conditions of reducing the fire source of one end stove plate of the cooking stove body and saving the gas source, or can disconnect the total gas source at the first time and prompt a user through alarm sound, so that the user is effectively prevented from cooking and firing the soup dishes by using the cooking stove, and serious secondary accidents are caused if the user goes out for various reasons or can not find problems at the first time when the soup is burnt out. Based on the above, the invention has good application prospect.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the electromagnetic valve of the present invention.
Fig. 3 is a schematic view of the structure of the electromagnetic valve of the invention.
Fig. 4 is a circuit diagram of the present invention.
Detailed Description
Fig. 1, 2, 3 and 4 show a temperature-controlled intelligent cooking stove, which comprises a gas cooking stove body 1 (with the functions of cutting off an input gas source when flameout and gas leakage occur in cooking, and outputting an alarm signal to prompt a user to discharge a problem, and can uniformly adopt a storage battery G for supplying power), and an electromagnetic valve DC1; the device also comprises a detection mechanism and a control mechanism; the middle part of the valve core of the electromagnetic valve DC1 is transversely provided with a through hole 2, the electromagnetic valve DC1 is arranged at the left part in the lower end shell of the cooking stove body 1, one end of the electromagnetic valve DC1 is connected with one end of an air inlet electromagnetic valve DC2 in the lower part of one stove plate 3 of the cooking stove body through a pipeline, the other end of the air inlet electromagnetic valve DC2 is connected with the air inlet end of one stove plate 3 through a pipeline, the other end of the electromagnetic valve DC1 is connected with one end of a main air inlet pipe of the cooking stove body through a pipeline (the other end of the main air inlet pipe is connected with the air inlet end of an air inlet electromagnetic valve 4 of the other stove plate through a pipeline); the detection mechanism comprises a storage battery G, a charging socket CZ, a power switch SK, a thermistor RT, a transmitting sub-circuit 51 and a shell 5 (made of plastic), wherein the storage battery, the charging socket, the power switch and the transmitting sub-circuit are arranged on a circuit board in the shell 5, the circuit board is arranged at the upper part in the shell 5 (for reducing the influence of heat of a cooker on electronic components), the thermistor RT is arranged at the lower middle part in the shell 5, and the shell 5 is arranged on a cooker cover; the control mechanism comprises a storage battery AG1, a charging socket ACZ1, a power switch ASK1, a receiving sub-circuit 61, a prompting sub-circuit 62 and a shell A6, wherein the storage battery A, the charging socket A, the power switch A and the receiving sub-circuit are arranged on a circuit board in the shell A6, the shell 6 is arranged on a nearby wall surface of the cooking stove body 1 (double-sided adhesive tape can be adhered to the rear end of the shell A, and the shell A6 is adhered to a wall through the double-sided adhesive tape).
As shown in fig. 1, 2, 3 and 4, the temperature sensing surface of the thermistor RT is located outside the middle of the lower end of the casing 5, the horizontal temperature sensing surface of the thermistor RT and the lower end of the casing 5 are located on the same plane, in application, the casing 5 is placed outside the upper end of the cooker cover 71, and the temperature sensing surface of the thermistor RT is tightly attached to the outer upper end of the cover 71. The electromagnetic valve DC1 is a normally open valve core electromagnetic valve with a working voltage of direct current of 5V, and after the valve core of the electromagnetic valve DC1 is closed, two fifths of fuel gas entering from the air inlet end and flowing out from the air outlet end of the electromagnetic valve DC1 can be closed through a hole 2 transversely penetrating through the middle part of the valve core. The model G of the storage battery of the detection mechanism is 5V/4Ah; the charging socket CZ is a coaxial power socket, and the charging jack is positioned outside the left opening at the front upper end of the shell; the power switch SK is a toggle power switch, and the operating handle is positioned outside the right opening at the front upper end of the shell; thermistor RT is a negative temperature coefficient thermistor. The transmitting sub-circuit of the detection mechanism comprises a power switch B, relays J1 and J2, NPN triodes Q and Q1, adjustable resistors RP and RP1, a wireless transmitting circuit module A1 (provided with four wireless signal transmitting keys which can transmit four different wireless control signals when pressed down respectively) and a power switch BD1, wherein the power switch B, the relays J1 and J2, the NPN triodes Q and Q1, the adjustable resistors RP and RP1 and the wireless transmitting circuit module A1 of a model TWH9236 are connected through circuit board wiring; the positive power input ends of the two relays J1 and J2 are connected with the pin 1 of the positive power input end of the wireless transmitting circuit module A1, one ends of the two adjustable resistors RP and RP1 are connected, the other ends of the two adjustable resistors RP and RP1 are respectively connected with the bases of the two NPN triodes Q and Q1, the collectors of the two NPN triodes Q and Q1 are respectively connected with the negative power input ends of the two relays J1 and J2, the emitters of the two NPN triodes Q and Q1 are respectively connected with the pin 2 of the negative power input end of the wireless transmitting circuit module A1, the control contact ends and the normally open contact ends of the two relays J1 and J2 are respectively connected with the first transmitting key S1 and the second transmitting key S2 of the wireless transmitting circuit module A1, and the two ends of the power switch BD1 are respectively connected between the other ends of the adjustable resistor RP and the base of the first NPN triode Q in series.
As shown in fig. 1, 2, 3 and 4, the model number of the storage battery AG1 of the control mechanism is 5V/6Ah; the charging socket ACZ1 is a coaxial power socket, and the charging jack is positioned outside the left opening at the front upper end of the shell A6; the power switch ASK1 is a toggle power switch, and the operating handle is positioned outside the opening on the right part of the front upper end of the shell A6; the receiving sub-circuit comprises relays J3 and J4, NPN triodes Q2 and Q3, resistors R and R1 and a wireless receiving circuit module A2 (which is matched with a wireless transmitting circuit module of TWH9238 and is provided with four output ends and a pulse signal output end) which are connected through circuit board wiring, wherein a positive power input end 1 pin of the wireless receiving circuit module A2 is connected with a positive power input end and a control power input end of the first relay J3, a positive power input end of the second relay J4 is connected with a negative power input end 3 pin of the wireless receiving circuit module A2 is connected with emitting electrodes of the two NPN triodes Q2 and Q3, a first output end 4 pin and a second output end 5 pin of the wireless receiving circuit module A2 are respectively connected with one end of the two resistors R and R1, the other end of the two NPN triodes Q2 and Q3 are respectively connected with bases of the two NPN triodes Q2 and Q3, and the collector power input ends of the two NPN triodes Q2 and Q3 are respectively connected. The prompting subcircuit of the control mechanism comprises a silicon controlled rectifier VS and a buzzer B which are connected through wiring of a circuit board, and the cathode of the silicon controlled rectifier VS is connected with the positive power input end of the buzzer B.
As shown in fig. 1, 2, 3 and 4, two poles of a storage battery G and two ends of a charging socket CZ are respectively connected by a wire (after the storage battery G is unpowered, an external 5V power charger plug can be inserted into the charging socket CZ to charge the storage battery G), and an anode of the storage battery G is connected with one end of a power switch SK by a wire. The other end of the power switch SK is connected with one end of the thermistor RT and the 1 pin of the wireless transmitting circuit module A1 at the positive power input end of the transmitting sub-circuit through a wire. The cathode of the storage battery G is connected with the pin 2 of the wireless transmitting circuit module A1 at the cathode power input end of the transmitting sub-circuit through a wire. The other end of the thermistor RT is connected with the other ends of the adjustable resistors RT and RT1 at the signal input end of the transmitting sub-circuit through wires. The two poles of the storage battery AG1 are respectively connected with two ends of the charging socket ACZ1 through wires (after the storage battery AG1 is in no electricity, an external 5V power supply charger plug can be inserted into the charging socket ACZ1 to charge the storage battery AG 1). The positive pole of the storage battery AG1 is connected with one end of the power switch ASK1 through a wire, and the other end of the power switch ASK1, the negative pole of the storage battery AG1 and the power input end of the receiving sub-circuit are connected with pins 1 and 3 of the wireless receiving circuit module A2, the positive pole of the silicon controlled rectifier VS at the power input end of the prompting sub-circuit and the power input end of the negative pole of the buzzer B through wires. The other end of the signal output end resistor R1 of the receiving sub-circuit is connected with the control electrode of the silicon controlled rectifier VS at the signal input end of the prompting sub-circuit through a wire. The normally open contact end and the negative power input end of the power output end relay J3 of the receiving sub-circuit are respectively connected with the power input end of the electromagnetic valve DC1 through wires, one wire of the air intake electromagnetic valve DC2 in the lower part of one stove plate of the cooking stove body 1 is disconnected (one wire is connected with the power input end of the air intake electromagnetic valve DC2, the other end of the wire is connected with the control circuit board A of the gas cooking stove body, the wire which is output to the power input end of the air intake electromagnetic valve DC2, the other wire of the air intake electromagnetic valve DC2 is directly connected with the control circuit board A of the gas cooking stove body, the wire which is output to the power input end of the air intake electromagnetic valve DC 2) and the control signal input end relay J4 of the receiving sub-circuit are respectively connected with two sections of one wire through wires.
As shown in fig. 1, 2, 3 and 4, the novel other using methods and processes are completely consistent with the existing gas cooking stove, the cooker 7 is placed on the stove plate, then the air inlet electromagnetic valve handle (and the rotary ignition control power switch A integrated) of the gas cooking stove body is opened, the air inlet electromagnetic valve is opened, the ignition control power switch A outputs an ignition signal to the control circuit board in the gas cooking stove body when the air inlet electromagnetic valve is opened (the control circuit board controls the air inlet electromagnetic valve to be opened), the control circuit board controls the stove plate igniter to generate electric spark to ignite gas (a user adjusts the size of the gas through adjusting the adjusting handle of the air inlet electromagnetic valve), water or dishes and the like in the gas heating cooker are heated, after ignition, the stove plate thermocouple of the gas cooking stove body detects the ignition signal and outputs the ignition signal to the control circuit board, and then the control circuit board controls the igniter to no longer work to complete an ignition program. The utility model is suitable for a cooking and baking soup dish use (in general non-soup dish frying, the user can not leave the cooking stove body, therefore does not use this novel detection and control soup dish water to burn or burn out the function of drying under the unnecessary condition). The invention is based on the cooking stove body 1 with flameout and gas leakage detection functions, before use, a user puts the shell 5 on one cooker cover 71 which needs to be monitored and controlled according to the need, and the temperature sensing surface of the thermistor RT is clung to the upper end of the cover 71 (the cooker is put on one of the stove plates 3), then the power switch SK is turned on, and then the transmitting sub-circuit and one end of the thermistor RT are powered on; then the power switch SK1 is turned on, the prompting sub-circuit and the receiving sub-circuit are in the power-on state, the user does not do any operation any more, and after the use is finished, the power switch SK1 is turned off, and all circuits are powered off and do not work. When the cooker cooks and burns soup and dish, the cover 71 can absorb heat of the cooker and transmit the heat to the thermistor RT in real time, so that the thermistor RT can synchronously change according to different temperature changes and resistance values; the resistance of the thermistor RT becomes smaller and vice versa when the temperature of the cooker increases. The positive pole of the 5V power supply is respectively reduced in voltage and limited in current by a thermistor RT and adjustable resistors RP and RP1, and then enters the bases of NPN triodes Q and Q1. In practical situations, when the soup in the cooker is not boiled, the thermistor RT is relatively small in heat transferred by the cover 71 and relatively large in resistance value, so that the base voltage of the 5V power supply anode which is reduced by the thermistor RT and the adjustable resistor RP and limited in current is lower than 0.7V and the NPN triode Q is in a cut-off state, and then the wireless transmitting circuit module A1 can not transmit the first path of wireless closing signal. In practical situations, when soup in the cooker is boiled, the thermistor RT is relatively large in heat transferred by the cover 71 (in practical situations, the temperature after water is boiled is 100 ℃, but the heat transferred by the cooker is not lost in percentage, so that the temperature of a temperature sensing surface of the thermistor RT acted on by the upper end of the cover of the cooker after the water is actually boiled is about 95 ℃ after the measurement, and the resistance value can be measured again in practical temperature production), so that the base voltage of the 5V power supply anode which enters the NPN triode Q after the voltage reduction and current limitation of the thermistor RT and the adjustable resistor RP is higher than 0.7V (on the premise that the power switch BD1 is opened), the NPN triode Q is in a conducting state, the collector output low level of the NPN triode Q enters the negative power supply input end of the relay J1, and then the relay J1 is electrified to suck the control contact end and the normally open contact end of the NPN triode Q is closed; because the control contact end and the normally open contact end of the relay J1 are respectively connected with two contacts below the transmission key S1 of the wireless transmission circuit module A1, after soup dishes in the cooker are boiled, the wireless transmission circuit module A1 can emit a first path of wireless signals.
In practical situations, as shown in fig. 1, 2, 3 and 4, when soup in the frying pan (cooker) is not dried, the thermistor RT is relatively small and has a relatively large resistance value due to the heat transferred by the cover 71, so that the base voltage of the 5V power anode entering the NPN triode Q1 after the voltage reduction and current limiting of the thermistor RT and the adjustable resistor RP1 is lower than 0.7V, the NPN triode Q1 is in a cut-off state, and then the wireless transmitting circuit module A1 will not transmit a second path of wireless closing signal. In practical situations, after soup in the cooker is dried for a certain period of time (such as 10 seconds for example), the temperature of the cover 71 acting on the temperature sensing surface of the thermistor RT is larger than a certain value (such as the cover temperature is larger than 100 ℃ and the actual dish temperature is about 105 ℃), the thermistor RT is relatively large due to the heat transmitted by the cover 71, and the resistance value is relatively small, so that the base voltage of the 5V power supply anode which enters the NPN triode Q1 after being reduced and limited by the thermistor RT and the adjustable resistor RP1 is higher than 0.7V, the NPN triode Q1 is in a conducting state, the collector output low level of the NPN triode Q1 enters the negative power supply input end of the relay J2, and then the relay J2 is electrified to suck the control contact end and the normally open contact end of the relay J2 to be closed; because the control contact end and the normally open contact end of the relay J2 are respectively connected with two contacts below the transmission key S2 of the wireless transmission circuit module A1, the wireless transmission circuit module A1 can transmit a second path of wireless signals (simultaneously transmit a first path of wireless closing signals) after soup vegetables in the cooker are dried.
As shown in fig. 1, 2, 3 and 4, when the soup in the cooker is boiled, after the wireless transmitting circuit module A1 transmits the first path of wireless signal, the wireless receiving circuit module A2 receives the first path of wireless closing signal, the 4 pin of the wireless receiving circuit module A2 outputs a high level, and the high level is reduced by the resistor R to limit the current and enters the base of the NPN triode Q2, the NPN triode Q2 is conducted, the collector of the NPN triode Q2 outputs a low level and enters the negative power input end of the relay J3, and the control power input end of the relay J3 is electrically attracted and communicated with the normally open contact end. Because the normally open contact end and the negative power input end of the relay J3 are respectively connected with the power input end of the electromagnetic valve DC1, the electromagnetic valve DC1 can be powered on at the moment to work, and the valve core of the electromagnetic valve DC1 is closed by two fifths, and only three fifths of gas of the gas quantity of one of the stove plate gas inlet electromagnetic valves DC2 enters one of the stove plates, so that the flame of one of the stove plates 7 can be reduced by two fifths, the condition that the fire source is kept too large after the soup dish is boiled is avoided, and the soup dish is burnt in a short time. When soup and vegetables in the cooker are dried, the wireless transmitting circuit module A1 transmits a second path of wireless closing signal, the wireless receiving circuit module A2 receives the second path of wireless closing signal, the pin 5 of the wireless receiving circuit module A2 outputs a high level, the high level is reduced by the resistor R1 and limited by the current to enter the base electrode of the NPN triode Q3, the collector electrode of the NPN triode Q3 is conducted to output a low level to enter the negative electrode power supply input end of the relay J4, and the relay J4 is electrified to attract the control power supply input end and the normally closed contact end of the relay to open. Because one of the wires of the air inlet electromagnetic valve DC2 in the lower part of one of the stove plates of the cooking stove body 1 is disconnected (one end of one wire is connected with the power input end of the air inlet electromagnetic valve DC2, the other end of the wire is connected with the control circuit board A of the gas cooking stove body, the wire output to the power input end of the air inlet electromagnetic valve DC2 is directly connected with the control circuit board A of the gas cooking stove body, the wire output to the power input end of the air inlet electromagnetic valve DC 2) and the relay J4 is respectively connected with the two sections of one wire through the wires, the electromagnetic valve DC1 can be electrically closed by two fifths at the moment, the air inlet electromagnetic valve DC2 (normally closed valve core) of one of the stove plates can be de-electrified, the valve core of the air inlet electromagnetic valve DC2 is completely closed, so that natural gas can not be flamed out into one of the stove plates and the cooker, and the cooker can not be heated any more, and the cooking cooker can be prevented from being burnt out when the cooking is slightly dried at about 105 ℃ for a short time. This novel set up switch BD1 ((operating handle is located the shell front and goes up outside the middle part) at NPN triode Q's base, because sometimes the user always needs big fire heating dish (the time of cooking or stew can be prolonged to the too little time of source of a fire), before consequently using, the user can close switch BD1 as required, like this, stew water is opened the back, owing to do not have the power to get into NPN triode Q's base, then wireless transmitting circuit module A1 just also can not launch first wireless closed signal all the way, solenoid valve DC1 just also can not be the electricity and close certain case, the required great source of a fire of heating has been guaranteed.
Fig. 1, 2, 3, and 4 show, in the present invention, when soup and dish in the cooker burns dry, the high level of wireless receiving circuit module 5 foot (2, 6, 7 foot unsettled) output is through resistance R1 step down current limiting entering NPN triode Q3, still can get into silicon controlled rectifier VS control pole, then silicon controlled rectifier VS is triggered to switch on its negative pole output high level and gets into buzzer B anodal power input, and then, buzzer B gets the electricity and sends out the suggestion sound of ringing, the suggestion is just coming home because of the thing or in the user in another room in the room, in time handles. Under the combined action of the circuit and the circuit, the novel wireless transmitting circuit module can respectively transmit different two paths of wireless signals after soup vegetables are boiled or after moisture in the soup vegetables are dried; when the receiving sub-circuit receives two paths of wireless signals respectively, the receiving sub-circuit can automatically adjust the small-entering natural gas, and further can prevent soup dishes from being burnt out in a short time (selectable function) under the conditions of reducing the fire source of one end stove plate of the cooking stove body and saving the gas source, or can disconnect the total gas source at the first time and prompt a user through alarm sound, so that the user is effectively prevented from cooking and firing the soup dishes by using the cooking stove, and serious secondary accidents are caused if the user goes out for various reasons or can not find problems at the first time when the soup is burnt out. The utility model discloses detect and pass through wireless mode transmission signal, but not wired mode transmission between mechanism and the control mechanism, because if wire both ends and detection mechanism, control mechanism are connected respectively, the wire spanes between the upper end detection mechanism and the control mechanism on the wall of cooker cover, has the probability to burn out the wire and cause equipment to fail to work when the fire source of fire dish is big. When the novel production and shaping are carried out, technicians need to set and adjust resistance values of the adjustable resistors RP and RP1, a detection mechanism is placed on a cooker cover (the upper cover of a shell is opened and is convenient to adjust) during specific adjustment, the lower end of the thermistor RT is tightly attached to the upper end of the cooker cover, then after soup dishes are boiled, the technicians repeatedly adjust the resistance of the adjustable resistor RP left and right by using tools, and after the electromagnetic valve DC1 is just adjusted to be electrified, the resistance value of the adjustable resistor RP is adjusted to be required; then repeatedly adjusting the resistance of the adjustable resistor RP1 left and right after the soup vegetables are dried, and adjusting the resistance value of the adjustable resistor RP1 to be required after the power of the air inlet electromagnetic valve DC2 is lost; in the subsequent practical application, when the soup is just boiled, the electromagnetic valve DC is powered off to close a part of valve cores, and after Shang Caigang is burnt out, the air inlet electromagnetic valve DC1 is powered off to close the total air source. After the resistance values of the adjustable resistors RP and RP1 are regulated, a technician can disconnect the power supply and take out the adjustable resistors RP and RP1 to measure the resistance values by using a resistance meter, and then the resistance values of the adjustable resistors RP and RP1 can be directly regulated in place during mass production according to the measured resistance values, or the adjustable resistors with the same resistance values can be replaced by fixed resistors. It should be noted that, because the temperature of the food heated by the pressure cooker will rise, the temperature acting on the pressure cooker cover and the thermistor RT is relatively high, the novel pressure cooker can not be directly used by the pressure cooker, the manufacturer can respectively adjust the resistance values of the adjustable resistors RP and RP1 to proper resistance values (corresponding adjusting height) according to the specific temperature of the food heated by the pressure cooker, and thus the pressure cooker can be suitable for the pressure cooker, and the application is not repeated. In fig. 3, the resistance R, R1 has a resistance of 1K; model numbers of NPN triodes Q, Q1, Q2 and Q3 are 9013; relays J1, J2, J3, J4 are DC5V4123 mini relays; the thermistor RT is a model NTC103D type negative temperature coefficient chip thermistor; the adjustable resistors RP and RP1 are 8M (the embodiment is respectively adjusted to 4.6M and 4.65M); the signaling device B is an active continuous sound buzzer finished product of the brand model SF5V of the wing alliance; the silicon controlled rectifier VS is a plastic package unidirectional silicon controlled rectifier of model MCR 100-1.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is limited to the details of the foregoing exemplary embodiments, and that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, the embodiments do not include only a single embodiment, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and embodiments may be suitably combined to form other embodiments that will be understood by those skilled in the art.
Claims (1)
1. A temperature-control intelligent cooking stove comprises a gas cooking stove body and an electromagnetic valve; the device is characterized by also comprising a detection mechanism and a control mechanism; the valve core of the electromagnetic valve is provided with a through hole, the electromagnetic valve is arranged in the lower end shell of the cooking stove body, and two ends of the electromagnetic valve are connected in series between one of the stove plate lower air inlet electromagnetic valve of the cooking stove and one end of the main air inlet pipe of the cooking stove body through pipelines; the detection mechanism comprises a storage battery, a charging socket, a power switch, a thermistor and a transmitting sub-circuit which are arranged in a shell, and the shell is arranged on the cooker cover; one end of the thermistor is electrically connected with the signal input end of the transmitting sub-circuit; the control mechanism comprises a storage battery A, a charging socket A, a power switch A, a receiving sub-circuit and a prompting sub-circuit which are arranged in a shell A; the signal output end of the receiving sub-circuit is electrically connected with the signal input end of the prompting sub-circuit; the power output end of the receiving sub-circuit is electrically connected with the power input end of the electromagnetic valve, one of the wires of the under-plate air inlet electromagnetic valve of the cooking stove is disconnected into two sections, and the control signal input end and the control signal output end of the receiving sub-circuit are respectively electrically connected with the two sections of one of the wires; the temperature sensing surface of the thermistor is positioned outside the lower end of the shell, and is clung to the outer upper end of the cooker cover; the electromagnetic valve is a normally open valve core electromagnetic valve, and after the valve core of the electromagnetic valve is closed, the through hole of the valve core of the electromagnetic valve can close part of fuel gas entering from the air inlet end and flowing out from the air outlet end of the electromagnetic valve; the thermistor of the detection mechanism is a negative temperature coefficient thermistor; the transmitting sub-circuit of the detection mechanism comprises a power switch B, a relay, an NPN triode, an adjustable resistor and a wireless transmitting circuit module which are electrically connected; the positive power input ends of the two relays are connected with the positive power input end of the wireless transmitting circuit module, one ends of the two adjustable resistors are connected, the other ends of the two adjustable resistors are respectively connected with the bases of the two NPN triodes, the collectors of the two NPN triodes are respectively connected with the negative power input ends of the two relays, the emitters of the two NPN triodes are respectively connected with the negative power input end of the wireless transmitting circuit module, the control contact ends and the normally open contact ends of the two relays are respectively connected with two contacts under two wireless keys of the wireless transmitting circuit module, and the two ends of the power switch B are respectively connected in series between the other ends of the adjustable resistors and the base of the first NPN triode; the receiving sub-circuit of the control mechanism comprises a relay, an NPN triode, a resistor and a wireless receiving circuit module which are electrically connected, wherein the positive power input end of the wireless receiving circuit module is connected with the positive power input end of the first relay, the control power input end of the first relay and the positive power input end of the second relay; the prompting sub-circuit of the control mechanism comprises a silicon controlled rectifier and a buzzer which are electrically connected, and the cathode of the silicon controlled rectifier is connected with the power input end of the anode of the buzzer.
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| CN1358959A (en) * | 2000-12-20 | 2002-07-17 | 王�锋 | Automatic gas combustion cooking utensil |
| CN2577150Y (en) * | 2002-09-23 | 2003-10-01 | 陈力 | Intelligent gas range (1) |
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