CN214038533U - Temperature control protection circuit of integrated stove - Google Patents
Temperature control protection circuit of integrated stove Download PDFInfo
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- CN214038533U CN214038533U CN202022679414.5U CN202022679414U CN214038533U CN 214038533 U CN214038533 U CN 214038533U CN 202022679414 U CN202022679414 U CN 202022679414U CN 214038533 U CN214038533 U CN 214038533U
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Abstract
The utility model discloses an integrated kitchen temperature control protection circuit relates to integrated kitchen technique, aims at solving when frying or big fire culinary art explodes, and the flame can scurry into the smoking mouth and enter into in the middle of the flue, leads to the interior high temperature of flue, and can accumulative total residual oil in the flue, can produce the dangerous problem of burning when the residual oil is under the high temperature environment for a long time, and its technical scheme main points are: the temperature-sensing device comprises a detection circuit and a control circuit, wherein the detection circuit comprises a temperature-sensing element arranged at a detection position, and the temperature-sensing element outputs a trigger signal when receiving that the temperature at the detection position is higher than a set value; the gas protection circuit is coupled with the detection circuit and used for receiving the trigger signal and controlling the electromagnetic valve to stop the gas pipe after receiving the trigger signal; the delay circuit is coupled with the detection circuit and responds to the trigger signal to send out a control signal of preset time; and the first switch circuit is coupled with the time delay circuit and responds to the control signal to start the smoke exhaust fan during the preset time of the control signal. The utility model discloses can in time aspirate when detecting the flue gas.
Description
Technical Field
The utility model relates to an integrated kitchen technique, more specifically say, it relates to an integrated kitchen temperature control protection circuit.
Background
The integrated stove is a kitchen appliance integrating multiple functions of a range hood, a gas stove, a disinfection cabinet, a storage cabinet and the like, is also called as an environment-friendly stove or an integrated environment-friendly stove in the industry, and has the advantages of space saving, good oil fume extraction effect, energy saving, low consumption, environment friendliness and the like. Because integrated integral type design is adopted to integrated kitchen, its system of discharging fume sets up in the lower part position to adopt the mode of side-draught type to adsorb the oil smoke, the side-draught type can shorten the distance between oil smoke and the smoking mouth, the required route in the air of process when shortening the oil smoke and being adsorbed, thereby reducing giving off of oil smoke, can improve the absorption effect to the oil smoke.
However, the distance between the smoke suction port and the fire source is shortened by the side suction mode, the oil smoke is often at a higher temperature and is adsorbed by the airflow at the smoke suction port, especially when the oil smoke is fried or cooked with big fire, the flame can even enter the smoke suction port and enter the flue, so that the temperature in the flue is too high, more residual oil is often accumulated in the flue, and the residual oil can generate a combustion danger when being in a high-temperature environment for a long time.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an integrated kitchen temperature control protection circuit for solving the above-mentioned problem.
The above technical purpose of the present invention can be achieved by the following technical solutions: an integrated kitchen temperature control protection circuit, includes:
the detection circuit comprises a temperature sensing element arranged at a detection position, and the temperature sensing element outputs a trigger signal when receiving that the temperature of the detection position is higher than a set value;
the gas protection circuit is coupled with the detection circuit and used for receiving the trigger signal and controlling the electromagnetic valve to stop the gas pipe after receiving the trigger signal;
the delay circuit is coupled with the detection circuit and responds to the trigger signal to send out a control signal of preset time;
and the switching circuit is coupled with the time delay circuit and responds to the control signal to start the smoke exhaust fan during the preset time of the control signal.
Through adopting above-mentioned technical scheme, when people are using this integrated kitchen, this protection circuit can monitor the condition of integrated kitchen, in case when appearing detecting that flame burns to the intraductal position of smoking, detection circuitry can produce triggering signal, and this triggering signal can activate gas protection circuit, make gas protection circuit control solenoid valve end gas pipe, thereby cut off flame, the condition of avoiding continuing the burning appears, after flame extinguishes simultaneously, delay circuit also can receive triggering signal's activation, thereby make it can produce control signal, make control signal come control switch circuit to switch on, thereby open the smoke ventilator, take away the oil smoke, avoid appearing the condition of dangerous explosion.
The utility model discloses further set up to: the detection circuit further comprises a first triode switch circuit, the base of the first triode switch circuit is coupled with the temperature sensing element, and when the temperature received by the temperature sensing element is higher than a set value, the collector and the emitter of the first triode switch circuit are triggered to be conducted.
The utility model discloses further set up to: the temperature sensing element comprises a first temperature sensing resistor arranged at the smoking port and a second temperature sensing resistor arranged in the smoking pipe, the signal output ends of the first temperature sensing resistor and the second temperature sensing resistor are coupled with the base electrode of the first triode switch circuit through an OR gate circuit, the first temperature sensing resistor or the second temperature sensing resistor receives a temperature higher than a set temperature value, and the collector electrode and the emitter electrode of the first triode switch circuit are triggered to be conducted.
The utility model discloses further set up to: the delay circuit includes a monostable circuit.
The utility model discloses further set up to: the time delay circuit further comprises a second triode switch circuit, and a collector of the second triode switch circuit is used for receiving a trigger signal to control the monostable circuit to enter a transient state.
The utility model discloses further set up to: the switching circuit comprises a relay, and an electrical end of the relay is coupled to an output end of the monostable circuit and is switched on to work in response to a control signal sent out in a transient state.
The utility model discloses further set up to: the mechanical end of the relay is a normally open switch connected in series with the smoke exhaust fan.
The utility model discloses further set up to: the power supply circuit comprises a voltage reduction circuit and a voltage stabilizing circuit.
To sum up, the utility model discloses following beneficial effect has:
when people are using this integrated kitchen, this protection circuit can monitor the condition of integrated kitchen, in case the appearance detects when flame burns the intraductal position of smoking, detection circuitry can produce triggering signal, and this triggering signal can activate gas protection circuit, make gas protection circuit control solenoid valve end gas pipe, thereby cut off flame, the condition of avoiding continuing the burning appears, after flame extinguishes simultaneously, delay circuit also can receive triggering signal's activation, thereby make it can produce control signal, make control signal come control switch circuit to switch on, thereby open the smoke ventilator, take away the oil smoke, avoid appearing the condition of dangerous explosion.
Drawings
Fig. 1 is a block diagram of the temperature control protection circuit of the integrated cooker of the present invention;
fig. 2 is a circuit diagram of the temperature control protection circuit of the integrated cooker.
Reference numerals: 1. a detection circuit; 2. a gas protection circuit; 3. a delay circuit; 4. a switching circuit; 5. a smoke exhaust fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A temperature control protection circuit of an integrated cooker is shown in figure 1 and comprises a detection circuit 1, a fuel gas protection circuit 2, a delay circuit 3, a switch circuit 4 and a smoke exhaust fan 5.
The detection circuit 1 is arranged at the detection position and used for outputting a trigger signal when receiving that the temperature of the detection position is higher than a set value.
The gas protection circuit 2 is coupled to the detection circuit 1 and configured to receive a trigger signal, control the electromagnetic valve YV to stop the gas pipe after receiving the trigger signal, and the delay circuit 3 is coupled to the detection circuit 1 and configured to send a control signal of a preset time in response to the trigger signal.
And in the case of a switching circuit 4, coupled to the delay circuit 3, in response to the control signal, to turn on the fume extractor 5 during a preset time of the control signal.
As shown in FIG. 2, the detection circuit 1 comprises a temperature sensing element and a triode switch circuit I, the temperature sensing element comprises a temperature sensing resistor first Rt1 arranged at a smoking port and a temperature sensing resistor second Rt2 arranged in a smoking pipe, the signal output ends of the temperature sensing resistor first Rt1 and the temperature sensing resistor second Rt2 are respectively connected with a slide rheostat Rp1 and a slide rheostat second Rp2, the temperature sensing resistor first Rt1 and the slide rheostat Rp1 as well as the temperature sensing resistor second Rt2 and the slide rheostat second Rp2 are connected with two input ends of an OR gate IC1-1, the OR gate circuit IC1-1 is coupled with the base electrode of the triode switch circuit I VT1, the other end of the slide rheostat I Rp1 is connected with the other end of the slide rheostat II Rp2, the other end of the slide rheostat II Rp2 is connected with a resistor R1 and then is connected with the collector electrode of the triode switch circuit I VT1, and the emitter electrode of the triode switch circuit I VT1 is connected with the resistor R2 and the resistor R3 and then is grounded.
The gas protection circuit 2 comprises a trigger element of a thyristor Q, the gate pole of the thyristor Q is connected with the emitting pole of a triode switching circuit VT1, the anode of the thyristor Q is connected with a solenoid valve YV, the cathode of the thyristor Q is connected with a resistor R4 and then is grounded, and the other end of the solenoid valve YV is connected with a power supply.
The delay circuit 3 comprises a monostable circuit which is an NE555 time-base chip and a triode switch circuit two VT2, the base electrode of the triode switch circuit two VT2 is connected between a resistor R2 and a resistor R3, the emitter electrode of the triode switch circuit two VT2 is grounded, the collector electrode of the triode switch circuit two VT2 is connected with a resistor R5 and then connected with a power supply, the collector electrode of the triode switch circuit two VT2 is connected with a resistor R5 and a 2 pin of the monostable circuit, the 6 and 7 pins of the monostable circuit are connected, the 7 pin of the monostable circuit is connected with a slide rheostat Rp3 and then connected with a resistor R6 and then connected with the power supply, the 6 pin of the circuit is connected with a capacitor C1 and then grounded, the 5 pin of the circuit is connected with a capacitor C2 and then grounded, the 1 pin of the circuit is grounded, the 4 and 8 pins of the circuit are also connected with the power supply, and the 3 pin of the circuit is connected with the switch circuit 4.
The circuit also comprises a power supply circuit, the power supply circuit comprises a voltage reduction circuit and a voltage stabilizing circuit, the power supply circuit supplies power, and a knife switch S2 is connected between the power supply circuit and the circuit in series.
When the circuit needs to be used, people can supply power through the power circuit, when the temperature-sensitive resistor one Rt1 arranged at a smoke suction port or the temperature-sensitive resistor two Rt2 arranged in the smoke suction pipe detect that a flame exists in the smoke suction port, the temperature-sensitive resistor one Rt1 or the temperature-sensitive resistor two Rt2 can cause resistance reduction due to high temperature, therefore, the temperature-sensitive resistor one Rt1 or the temperature-sensitive resistor two Rt2 can input a high-level signal to an OR gate circuit IC1-1, then, a triode switch circuit one VT1 can be conducted, then, a gate pole of a thyristor Q can input a high level, the anode and the cathode of the thyristor Q are conducted, the electromagnetic valve YV is electrified, the electromagnetic valve YV is closed, the path for gas entering is prevented from being closed, and the condition of explosion is avoided.
Meanwhile, when the triode switch circuit I VT1 is conducted, a high level is output, the triode switch circuit II VT2 is conducted, the 2 pin of the monostable circuit is changed into a trigger signal of a low level from the high level, the monostable circuit is triggered and generates a control signal, the control signal is an electric signal of the high level and is transmitted to the relay K, the normally open switch K1 is controlled to be closed by the relay K, the smoke exhaust fan 5 is enabled to work to suck smoke, smoke can be dissipated, people can close the smoke exhaust fan 5 only by disconnecting the knife switch S1, then people disconnect the knife switch S2 to power off the circuit, then switch S2 is conducted again, and the circuit can be enabled to detect and protect again
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an integrated kitchen temperature control protection circuit which characterized in that includes:
the detection circuit (1) comprises a temperature sensing element arranged at a detection position, and the temperature sensing element outputs a trigger signal when receiving that the temperature at the detection position is higher than a set value;
the gas protection circuit (2) is coupled with the detection circuit (1) and used for receiving the trigger signal and controlling the electromagnetic valve to stop the gas pipe after receiving the trigger signal;
the delay circuit (3) is coupled with the detection circuit (1) and responds to the trigger signal to send out a control signal of preset time;
and the switching circuit (4) is coupled with the time delay circuit (3) and responds to the control signal to start the smoke exhaust fan (5) during the preset time of the control signal.
2. The oven temperature control protection circuit according to claim 1, wherein the detection circuit (1) further comprises a first triode switch circuit, a base of the first triode switch circuit is coupled to the temperature sensing element, and the collector and the emitter of the first triode switch circuit are triggered to conduct when the temperature sensing element receives a temperature higher than a set value.
3. The temperature-controlled protection circuit of the integrated cooker according to claim 2, wherein the temperature-sensitive element comprises a first temperature-sensitive resistor arranged at the smoke suction port and a second temperature-sensitive resistor arranged in the smoke suction pipe, signal output ends of the first temperature-sensitive resistor and the second temperature-sensitive resistor are coupled with a base electrode of the first triode switch circuit through an OR gate circuit, and when the first temperature-sensitive resistor or the second temperature-sensitive resistor receives a temperature higher than a set temperature value, a collector electrode and an emitter electrode of the first triode switch circuit are triggered to be conducted.
4. The integrated cooker temperature-controlled protection circuit according to claim 1, wherein the time delay circuit (3) comprises a monostable circuit.
5. The oven temperature control protection circuit according to claim 4, wherein the delay circuit (3) further comprises a second triode switch circuit, and a collector of the second triode switch circuit is used for receiving a trigger signal to control the monostable circuit to enter a transient state.
6. The oven temperature-controlled protection circuit according to claim 4, wherein the switch circuit comprises a relay, and an electrical terminal of the relay is coupled to an output terminal of the monostable circuit and is turned on to operate in response to a control signal generated in a transient state.
7. The integrated cooker temperature control protection circuit according to claim 6, wherein the relay mechanical end is a normally open switch connected in series with the smoke exhaust fan (5).
8. The integrated cooker temperature-control protection circuit according to claim 1, further comprising a power circuit, wherein the power circuit comprises a voltage-reducing circuit and a voltage-stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022679414.5U CN214038533U (en) | 2020-11-18 | 2020-11-18 | Temperature control protection circuit of integrated stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022679414.5U CN214038533U (en) | 2020-11-18 | 2020-11-18 | Temperature control protection circuit of integrated stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214038533U true CN214038533U (en) | 2021-08-24 |
Family
ID=77359960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022679414.5U Active CN214038533U (en) | 2020-11-18 | 2020-11-18 | Temperature control protection circuit of integrated stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214038533U (en) |
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2020
- 2020-11-18 CN CN202022679414.5U patent/CN214038533U/en active Active
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