CN213841029U - Power-off forced shutdown control circuit for intelligent integrated cooker - Google Patents
Power-off forced shutdown control circuit for intelligent integrated cooker Download PDFInfo
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- CN213841029U CN213841029U CN202022940159.5U CN202022940159U CN213841029U CN 213841029 U CN213841029 U CN 213841029U CN 202022940159 U CN202022940159 U CN 202022940159U CN 213841029 U CN213841029 U CN 213841029U
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Abstract
The utility model discloses an integrated kitchen outage of intelligence forces shutdown control circuit relates to integrated kitchen intelligent control, aims at solving the commercial power outage back and puts out fire to the gas cooker, influences people to the problem of the normal use of gas cooker, uses its technical scheme main points to be: further comprising: the power supply circuit, the power failure detection circuit, the power supply switching circuit, the standby power supply and the power supply loop of the electromagnetic valve; the power supply circuit is connected with a mains supply and used for outputting 12V voltage to supply a power supply loop of the electromagnetic valve; the power failure detection circuit is coupled with the power supply circuit and responds to a power failure signal output when the commercial power is cut off; and the power supply switching circuit is coupled with the power-off detection circuit and responds to a power-off signal to conduct the standby power supply to the power supply loop. The utility model discloses a reed switch magnetic control and hysteresis comparison circuit realize the commercial power outage after, still can make its work to the solenoid valve power supply, when guaranteeing the gas-cooker security, can normal use.
Description
Technical Field
The utility model relates to an integrated kitchen intelligent control, more specifically say that it relates to an intelligent integrated kitchen outage forces shutdown control circuit.
Background
With the progress of technology, modern kitchen appliances gradually develop towards intellectualization and integration. The integrated cooker is a typical representative of the integrated cookers, is also called as an environment-friendly cooker or an integrated environment-friendly cooker in the industry, is a kitchen appliance integrating multiple functions of a range hood, a gas cooker, a disinfection cabinet, a storage cabinet and the like, and has the advantages of space saving, good oil fume extraction effect, energy saving, low consumption, environment friendliness and the like.
The intelligent integrated cooker with the power-off forced shutdown disclosed in the Chinese patent with the publication number of CN204268524U has the technical key points that: including the solenoid valve that control gas pipeline closed, open the thermocouple of solenoid valve according to the cooking utensils temperature, the relay, and with the power supply switch that the control coil of relay concatenated, wherein the thermocouple is connected with the normally closed contact of relay and forms gas control circuit with the solenoid valve, power supply switch's control end is used for receiving timing shutdown signal in order to break off gas control circuit, still is equipped with the commercial power detection circuit that links to each other with power supply switch's control end for send the compulsory shutdown signal to power supply switch when the commercial power outage.
Realize the commercial power outage among the above-mentioned scheme, at timing function failure, force the effect of shutting down to the gas-cooker, nevertheless carry out flame-out to the gas-cooker after the commercial power outage at once for when people are using the gas-cooker to cook, influence people's normal use.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an intelligent integrated kitchen outage forces shutdown control circuit realizes through tongue tube magnetic control switch and hysteresis comparison circuit that the commercial power outage back still can make its work to the solenoid valve power supply, when guaranteeing the gas-cooker security, can normal use.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an intelligent integrated kitchen outage forced shutdown control circuit, includes timing circuit, its characterized in that: further comprising: the power supply circuit, the power failure detection circuit, the power supply switching circuit, the standby power supply and the power supply loop of the electromagnetic valve;
the power supply circuit is connected with a mains supply and used for outputting 12V voltage to supply a power supply loop of the electromagnetic valve;
the power failure detection circuit is coupled with the power supply circuit and responds to a power failure signal output when the commercial power is cut off;
and the power supply switching circuit is coupled with the power-off detection circuit and responds to a power-off signal to conduct the standby power supply to the power supply loop.
Through adopting above-mentioned technical scheme, convert commercial power into 12V's direct current through power supply circuit and supply with the solenoid valve and normally work, when the commercial power outage, outage detection circuitry detects commercial power and 12V voltage and disappears, carries for power supply switching circuit switches on the circuit between stand-by power supply and the power supply circuit, supplies power to the solenoid valve, when the commercial power outage, can drive the solenoid valve, makes people still can normally use the gas-cooker to carry out work.
The utility model discloses further set up to: the power supply circuit comprises a rectifying circuit, a filter circuit and a voltage stabilizing circuit, the power-off detection circuit comprises a first relay, and the output end of the voltage stabilizing circuit is connected with the first relay in series and then grounded.
Through adopting above-mentioned technical scheme, convert the commercial power into the direct current through rectifier circuit filter circuit and voltage stabilizing circuit, be connected through the output of first relay and voltage stabilizing circuit, through the breaking of low-voltage control first relay, realize the safety inspection to the commercial power outage.
The utility model discloses further set up to: the power switching circuit includes a first switch connected to the first relay, the power switching circuit closing the first switch to power the power supply loop through the backup power supply in response to the power-off signal.
Through adopting above-mentioned technical scheme, power supply switching circuit includes by the first switch of first relay hole for when the commercial power outage, can be through controlling first switch synchronous closure, and then make stand-by power supply to supply circuit, realize commercial power and stand-by power supply's quick linking up.
The utility model discloses further set up to: the circuit further comprises a hysteresis comparator based on the chip 555, wherein an input end of the hysteresis comparator is coupled with the power supply switching circuit and responds to the power-off signal to output a starting signal with a preset duration.
By adopting the technical scheme, the hysteresis comparator is coupled with the power supply switching circuit, and when the power supply switching circuit receives a power-off signal generated by the power-off of the mains supply, the starting signal with preset duration can be continuously output, so that the work of the electromagnetic valve is kept.
The utility model discloses further set up to: and the output end of the hysteresis comparator is connected with a second switching circuit for closing the power supply loop, and the second switching circuit responds to the starting signal to close the power supply loop.
Through adopting above-mentioned technical scheme, through the second switch circuit who connects at hysteresis comparator output, when realizing that the actuating signal lasts the output of predetermineeing for a long time, with second switch circuit closure to make stand-by power supply to supply power circuit, improve the stability of power supply, avoid causing stand-by power supply and commercial power to frequently switch and lead to equipment to damage because the commercial power is unstable.
The utility model discloses further set up to: the second switch circuit comprises a reed switch magnetic control switch and a switch controlled silicon, the switch controlled silicon is connected in series with the power supply loop, and the reed switch magnetic control switch is coupled with a control electrode of the switch controlled silicon and responds to the situation that the switch controlled silicon is conducted when the reed switch magnetic control switch is electrified.
By adopting the technical scheme, the coupling of the current control reed switch is realized through the reed switch magnetic control switch, so that the phenomenon that the current and the voltage are unstable to cause false touch is avoided, and meanwhile, the damage of a circuit caused by environments such as oil smoke is reduced.
The utility model discloses further set up to: the device also comprises a first switch circuit, a judgment circuit and a pulse circuit;
the pulse circuit is used for generating a pulse signal to be transmitted to the judgment circuit;
the judging circuit is coupled with the pulse circuit and the first switching circuit and responds to the pulse signal to transmit a power supply signal to the first switching circuit;
the first switch circuit is connected with the power supply loop and responds to the power supply signal to supply power to the power supply loop.
Through adopting above-mentioned technical scheme, produce pulse signal and carry for the decision circuit through pulse circuit, detect the operating condition of gas stove to power supply loop switches on when pulse signal triggers when carrying power supply signal, supplies power to the solenoid valve, and the control of cooperation timing circuit or external sensor realization to gas stove work.
The utility model discloses further set up to: the pulse circuit is a multivibrator circuit, and the first switching circuit comprises a switching triode and a second relay.
Through adopting above-mentioned technical scheme, select for use multivibrator circuit as pulse circuit for pulse circuit can be through stable, periodic pulse signal of self-excited oscillation's mode output, and select for use switch triode and second relay as first switch circuit, economical and practical, and be convenient for control the solenoid valve.
To sum up, the utility model discloses following beneficial effect has:
convert commercial power into 12V's direct current through power supply circuit and supply with the solenoid valve and normally work, when the commercial power outage, outage detection circuitry detects commercial power and 12V voltage and disappears, carries for power supply switching circuit switches on the circuit between stand-by power supply and the power supply circuit, supplies power to the solenoid valve, and when the commercial power outage, can drive the solenoid valve, makes people still can normally use the gas-cooker to work.
Drawings
Fig. 1 is a block diagram of the circuit structure of the present invention;
FIG. 2 is a schematic circuit diagram of a power supply circuit according to the present invention;
fig. 3 is a schematic circuit diagram of the power switching circuit of the present invention;
fig. 4 is a schematic circuit diagram of the middle determination circuit of the present invention.
In the figure: 1. a power supply circuit; 11. a rectifying circuit; 12. a voltage stabilizing circuit; 2. a power-off detection circuit; 3. a power switching circuit; 4. a hysteresis comparator; 5. a second switching circuit; 6. a first switching circuit; 7. a pulse circuit; 8. and a judgment circuit.
Detailed Description
The utility model provides an intelligent integrated kitchen outage forced shutdown control circuit, as shown in fig. 1, includes timing circuit, still includes: the power supply circuit comprises a power supply circuit 1, a power failure detection circuit 2, a power supply switching circuit 3, a standby power supply and a power supply loop of the electromagnetic valve, wherein the power supply circuit 1 is connected with a mains supply and used for outputting 12V voltage to be supplied to the power supply loop of the electromagnetic valve, the power failure detection circuit 2 is coupled with the power supply circuit 1 and used for outputting a power failure signal when the mains supply is in a power failure state, and the power supply switching circuit 3 is coupled with the power failure detection circuit 2 and used for switching on the standby power supply to supply the power supply loop when the power failure signal is responded.
As shown in fig. 2, the power supply circuit 1 includes a rectifier circuit 11, a filter circuit and a voltage regulator circuit 12, specifically, the rectifier circuit 11 is a bridge rectifier circuit 11, so as to convert the transformed mains supply into a direct current, and filter the direct current through the filter circuit formed by the filter capacitor, and select a three-terminal regulator as the voltage regulator circuit 12, and stabilize the filtered direct current, so as to output a stable 12V voltage, and the power failure detection circuit 2 includes a first relay, and the output end of the voltage regulator circuit 12 is grounded after being connected in series with the first relay.
As shown in fig. 3, the power switching circuit 3 includes a first switch K1 connected to a first relay, the first switch K1 is connected in series with a 6V battery back to ground, and a connection point of the first switch K1 opposite to the battery is connected to a hysteresis comparator 4, wherein the first switch K1 is a controlled terminal of the first relay, the first relay is a normally closed relay, the hysteresis comparator 4 is a time-base circuit based on a chip 555, and 2 pins of the chip 555 are connected in series with a resistor R1 and an adjustable potentiometer RP2 in turn to be connected to a first switch K1, so that an input terminal of the hysteresis comparator 4 is coupled to the power switching circuit 3 to output a preset duration of start signal in response to a power-off signal, and an output terminal of the hysteresis comparator 4 is connected to a second switch circuit 5 for closing a power supply circuit, the second switch circuit 5 is connected to close the power supply circuit in response to the start signal, and specifically, the second switch circuit 5 includes a reed switch and a switch thyristor, the switch silicon controlled rectifier is connected in series with the power supply circuit, and the reed switch magnetic control switch is coupled with the control electrode of the switch silicon controlled rectifier, and when responding to the power-on of the reed switch magnetic switch, the switch silicon controlled rectifier is conducted, so that the first switch K1 is closed to supply power to the power supply circuit through the standby power supply when the power supply switching circuit 3 responds to the power-off signal.
As shown in fig. 1 and 4, the power supply device further includes a first switch circuit 6, a judgment circuit 8 and a pulse circuit 7, wherein the pulse circuit 7 is configured to generate a pulse signal to be transmitted to the judgment circuit 8, and the judgment circuit is coupled to the pulse circuit 7 and the first switch circuit 6, and the judgment circuit 8 is configured to transmit a power supply signal to the first switch circuit 6 in response to the pulse signal, and wherein the first switch circuit 6 is connected to the power supply loop to supply power to the power supply loop in response to the power supply signal.
Referring to fig. 3 and 4, wherein the pulse circuit 7 is a multivibrator circuit based on a chip 555, the output terminal of the pulse circuit 7 outputs a periodic square wave signal to the determination circuit 8, the determination circuit 8 is a D flip-flop based on a chip 74LS175, the output terminal of the multivibrator circuit is connected to the CLK terminal of the D flip-flop, the input terminal of the D flip-flop is connected to an ignition sensor connected to a timing circuit, the ignition device is detected, when the ignition signal is detected, the first switch circuit 6 is triggered by the determination circuit 8 to keep the solenoid valve in a conducting state, the first switch circuit 6 includes a switch triode based on an NPN type, the base of the switch triode is connected to the output terminal of the D flip-flop, and the collector of the switch triode is connected in series to a second relay and a resistor R3 to connect to a power source VCC, wherein the second relay is a normally open type relay, the first switch K1 is connected in parallel across the backup power supply and the solenoid valve.
The working process ignites control to the gas-cooker through ignition sensor at timing circuit, under the effect of pulse circuit 7 and D trigger, carries out real-time supervision, when judging that circuit 8 carries power supply signal and gives first switch circuit 6, makes the switch triode switch on, and the second relay gets electricity, makes the return circuit that solenoid valve and second relay's control switch constitute switch on make the gas-cooker when the commercial power is normally supplied power, carries out normal work.
When the commercial power outage, owing to connect the first relay outage at voltage stabilizing circuit 12 output, and then make the first switch K1 of the first relay of normally closed type closed, make the battery supply power to chip 555's 2 pins through resistance R1, outage signal carries to hysteresis comparator 4 promptly, make hysteresis comparator 4's output convert the low level, thereby trigger tongue tube magnetic control switch, make tongue tube magnetic control switch actuation, provide silicon controlled rectifier starting current, make the silicon controlled rectifier switch on, realize the power supply of stand-by power supply to the solenoid valve, keep opening of solenoid valve, and then realize the gas-cooker when the commercial power outage, still can be through the mode of follow-up ignition, normal use.
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 intelligent integrated kitchen outage forced shutdown control circuit, includes timing circuit, its characterized in that: further comprising: the power supply circuit comprises a power supply circuit (1), a power failure detection circuit (2), a power supply switching circuit (3), a standby power supply and a power supply loop of an electromagnetic valve;
the power supply circuit (1) is connected with a mains supply and used for outputting 12V voltage to supply a power supply loop of the electromagnetic valve;
the power failure detection circuit (2) is coupled with the power supply circuit (1) and responds to the power failure of the mains supply to output a power failure signal;
and the power supply switching circuit (3) is coupled with the power failure detection circuit (2) and responds to a power failure signal to conduct the standby power supply loop.
2. The power-off forced shutdown control circuit of the intelligent integrated cooker according to claim 1, characterized in that: the power supply circuit (1) comprises a rectifying circuit (11), a filter circuit and a voltage stabilizing circuit (12), the power failure detection circuit (2) comprises a first relay, and the output end of the voltage stabilizing circuit (12) is connected with the first relay in series and then is grounded.
3. The power-off forced shutdown control circuit of the intelligent integrated cooker according to claim 2, characterized in that: the power switching circuit (3) comprises a first switch connected with the first relay, and the power switching circuit (3) closes the first switch to supply power to the power supply loop through the standby power supply when responding to the power failure signal.
4. The power-off forced shutdown control circuit of the intelligent integrated cooker according to claim 2, characterized in that: the circuit also comprises a hysteresis comparator (4) based on the chip 555, wherein the input end of the hysteresis comparator (4) is coupled with the power supply switching circuit (3) and responds to a power-off signal to output a starting signal with a preset duration.
5. The power-off forced shutdown control circuit of the intelligent integrated cooker according to claim 4, characterized in that: and the output end of the hysteresis comparator (4) is connected with a second switching circuit (5) for closing the power supply loop, and the second switching circuit (5) responds to the starting signal to close the power supply loop.
6. The power-off forced shutdown control circuit of the intelligent integrated cooker according to claim 5, characterized in that: the second switch circuit (5) comprises a reed switch magnetic control switch and a switch controlled silicon, the switch controlled silicon is connected in series with the power supply loop, the reed switch magnetic control switch is coupled with a control electrode of the switch controlled silicon, and the switch controlled silicon is conducted when the reed switch magnetic control switch is powered on.
7. The power-off forced shutdown control circuit of the intelligent integrated cooker according to claim 1, characterized in that: the device also comprises a first switch circuit (6), a judgment circuit (8) and a pulse circuit (7);
a pulse circuit (7) for generating a pulse signal to be transmitted to the judgment circuit (8);
a decision circuit (8) coupled to the pulse circuit (7) and the first switch circuit (6) for delivering a supply signal to the first switch circuit (6) in response to the pulse signal;
and the first switching circuit (6) is connected with the power supply loop and responds to the power supply signal to supply power to the power supply loop.
8. The power-off forced shutdown control circuit of the intelligent integrated cooker according to claim 7, characterized in that: the pulse circuit (7) is a multivibrator circuit, and the first switch circuit (6) comprises a switch triode and a second relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940159.5U CN213841029U (en) | 2020-12-10 | 2020-12-10 | Power-off forced shutdown control circuit for intelligent integrated cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940159.5U CN213841029U (en) | 2020-12-10 | 2020-12-10 | Power-off forced shutdown control circuit for intelligent integrated cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213841029U true CN213841029U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022940159.5U Active CN213841029U (en) | 2020-12-10 | 2020-12-10 | Power-off forced shutdown control circuit for intelligent integrated cooker |
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| Country | Link |
|---|---|
| CN (1) | CN213841029U (en) |
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- 2020-12-10 CN CN202022940159.5U patent/CN213841029U/en active Active
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