CN215446542U - Control panel control circuit of integrated cooker - Google Patents
Control panel control circuit of integrated cooker Download PDFInfo
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- CN215446542U CN215446542U CN202121025918.3U CN202121025918U CN215446542U CN 215446542 U CN215446542 U CN 215446542U CN 202121025918 U CN202121025918 U CN 202121025918U CN 215446542 U CN215446542 U CN 215446542U
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Abstract
The utility model discloses a control panel control circuit of an integrated cooker, which relates to intelligent control of electric appliances and aims to solve the problems that people need to manually touch a power key to operate during operation and the operation of people is inconvenient in an environment with poor light, and the technical scheme is as follows: the infrared sensor is used for acquiring a human body infrared signal to output an induction signal which is a voltage signal; the judging circuit is connected with the infrared sensor and used for receiving the sensing signal to output a trigger signal supplied to the lighting loop; and the modulation circuit is connected with the judgment circuit and the illumination circuit and responds to the trigger circuit to modulate the brightness of the illumination source in the illumination circuit. The utility model adjusts the conduction angle of the one-way silicon controlled rectifier, adjusts the illumination brightness of the LED lamp bank, is suitable for different light and shade environments, is more energy-saving and environment-friendly, realizes that the control panel can be lightened when a human body is close to the control panel, and is convenient for people to control and operate the integrated cooker.
Description
Technical Field
The utility model relates to intelligent control of electric appliances, in particular to a control circuit of a control panel of an integrated cooker.
Background
The integrated stove is a kitchen appliance integrating a plurality of functions of a range hood, a gas stove, a disinfection cabinet, a storage cabinet and the like, and is also called as an environment-friendly stove or an integrated environment-friendly stove in the industry. Has the advantages of space saving, good oil fume extraction effect, energy saving, low consumption, environmental protection and the like. The control end of a plurality of electrical appliances such as the range hood and the disinfection cabinet are arranged on the control panel in a centralized manner on the integrated kitchen, so that people can control the electrical appliances such as the range hood and the disinfection cabinet by touching the control panel.
Illumination sources such as the built-in LED banks of control panel on the market, each functional area provides to light on control panel, people of being convenient for observe and operate, but the illumination source lights the loss that has the electric energy for a long time, and influence the life of illumination sources such as LED banks, and though can solve the resource and be favorable to prolonging the life of electrical apparatus through the power key disconnection control panel power supply, but when the operation, people need manual touching power key to operate, the operation of people is not convenient for in the environment of light is bad.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a control panel control circuit of an integrated cooker, which is used for adjusting the conduction angle of a one-way silicon controlled rectifier and adjusting the illumination brightness of an LED lamp bank, is suitable for different light and shade environments, is more energy-saving and environment-friendly, and can light up the control panel when a human body approaches the control panel, so that people can conveniently control and operate the integrated cooker.
The technical purpose of the utility model is realized by the following technical scheme: the utility model provides an integrated kitchen control panel control circuit, includes the illumination return circuit of being connected with the power, still includes:
the infrared sensor is used for acquiring a human body infrared signal to output an induction signal which is a voltage signal;
the judging circuit is connected with the infrared sensor and used for receiving the sensing signal to output a trigger signal supplied to the lighting loop;
the modulation circuit is connected with the judgment circuit and the illumination circuit and responds to the trigger circuit to modulate the brightness of the illumination source in the illumination circuit;
the delay circuit is connected with the infrared sensor and the judgment circuit and responds to disappearance of the trigger signal to output a delay signal with preset duration;
and the switching circuit is connected with the delay circuit and the lighting circuit and responds to the delay signal to maintain the power supply of the lighting circuit.
Through adopting above-mentioned technical scheme, when people were close to control panel, infrared sensor detected human infrared signal output sensing signal and gives judgment circuit. The judging circuit receives the induction signal to enable the lighting circuit to supply power to start to light the control panel. When people approach the control panel, the control panel is automatically lightened, so that people can observe and operate the control panel. The time delay circuit and the switch circuit are arranged, so that the control panel is turned off in a time delay manner by matching the delay signal output by the time delay circuit with the switch circuit when people leave, and further energy and electricity are saved.
The utility model is further configured to: still include amplifier circuit and multistage comparison circuit, amplifier circuit electric connection is between infrared sensor and multistage comparison circuit for be the sensing signal that the infrared sensor of proportional amplification gathered, multistage comparison circuit is connected with delay circuit, and the response sensing signal is located the set voltage interval in order to carry the enabling signal in order to trigger delay circuit.
Through adopting above-mentioned technical scheme, amplifier circuit is connected with infrared sensor, when infrared sensor detected human infrared signal, can amplify infrared signal to through multistage comparison circuit, can compare infrared signal and reference signal's size, and then control delay circuit triggers, and the reaction is quick accurate, realizes that people are being close to and when keeping away from, the break-make of control lighting circuit.
The utility model is further configured to: the judgment circuit comprises a switch triode and a divider resistor, the output end of the infrared sensor is connected with the base electrode of the switch triode in series through the divider resistor, the collector electrode of the switch triode is connected to a power supply, and the emitting electrode of the switch triode is electrically connected to the modulation circuit.
By adopting the technical scheme, the judgment circuit is formed by connecting the switch triode and the divider resistor, and the circuit is simple in structure, low in cost and high in reaction speed.
The utility model is further configured to: the modulation circuit comprises a unidirectional silicon controlled rectifier and an adjustable potentiometer which are connected in series in the lighting loop, and an emitting electrode of the switching triode is connected with the adjustable potentiometer in series to a control end of the unidirectional silicon controlled rectifier.
By adopting the technical scheme, the adjustable potentiometer is used for adjusting the current and the voltage, so that the conduction angle of the unidirectional silicon controlled rectifier is adjusted, and the brightness of the illumination source in the illumination loop is adjusted.
The utility model is further configured to: the time delay circuit comprises a monostable trigger based on a chip NE555 and an indicator lamp, wherein the indicator lamp is connected in series between the monostable trigger and the switch circuit, and responds to a time delay signal to output a light signal.
Through adopting above-mentioned technical scheme, chip NE 555's monostable trigger when receiving low level signal, the transient steady state signal of stable output length of time of presetting lights the pilot lamp simultaneously and feedbacks, and the people of being convenient for know infrared sensor and detect the distance between human and the control panel.
The utility model is further configured to: the amplifying circuit comprises an integrated operational amplifier and a coupling capacitor, and the coupling capacitor is connected with the integrated operational amplifier and the infrared sensor in series.
By adopting the technical scheme, the integrated operational amplifier and the infrared sensor are connected in series with the coupling capacitor, so that the interference caused by external direct current signals can be isolated, and the detection and acquisition precision of the infrared sensor is improved.
The utility model is further configured to: the multistage comparator comprises a first voltage comparator and a second voltage comparator, wherein the reverse input end and the same-direction input end of the first voltage comparator and the second voltage comparator are both connected with the output end of the amplifying circuit, the same-direction input end of the first voltage comparator is connected with a reference circuit used for providing reference voltage, and the reverse input end of the second voltage comparator is grounded.
By adopting the technical scheme, when the voltage signal output by the amplifying circuit is greater than zero and smaller than the reference signal provided by the voltage comparator through the inverted input end, the first voltage comparator and the second voltage comparator both output high levels, and then the delay circuit is triggered through the NAND gate logic circuit.
The utility model is further configured to: the reference circuit comprises a pull-up resistor and an adjustable resistor, one end of the pull-up resistor is connected to a power supply, the other end of the pull-up resistor is connected with the adjustable resistor in series and then is grounded, and the input end of the first voltage comparator is electrically connected with the pull-up resistor and the adjustable resistor.
Through adopting above-mentioned technical scheme, divide voltage through pull-up resistance and adjustable resistor, and the resistance of adjustable resistor can adjust to adjust the size of reference signal.
In conclusion, the utility model has the following beneficial effects:
when people are close to the control panel, the infrared sensor detects human body infrared signals and outputs induction signals to the judgment circuit. The judging circuit receives the induction signal to enable the lighting circuit to supply power to start to light the control panel. When people approach the control panel, the control panel is automatically lightened, so that people can observe and operate the control panel. The time delay circuit and the switch circuit are arranged, so that the control panel is turned off in a time delay manner by matching the delay signal output by the time delay circuit with the switch circuit when people leave, and further energy and electricity are saved.
Drawings
FIG. 1 is a block diagram of the structure of the present invention;
FIG. 2 is a circuit schematic of the modulation circuit of the present invention;
fig. 3 is a circuit schematic diagram of the delay circuit of the present invention.
In the figure: 1. an illumination circuit; 2. an infrared sensor; 3. a judgment circuit; 4. a modulation circuit; 5. a delay circuit; 6. a switching circuit; 7. an amplifying circuit; 8. a multi-stage comparison circuit.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
A control panel circuit of an integrated cooker is shown in figures 1 and 2 and comprises an illumination loop 1 connected with a power supply, an infrared sensor 2 is used for collecting human body infrared signals and outputting induction signals serving as voltage signals, a judging circuit 3 is connected with the infrared sensor 2 and receives the induction signals to output trigger signals supplied to the illumination loop 1, a modulating circuit 4 is connected with the judging circuit 3 and the illumination loop 1 and responds to the trigger signals to modulate the brightness of an illumination source in the illumination loop 1, a delay circuit 5 is connected with the infrared sensor 2 and the judging circuit 3 and responds to the disappearance of the trigger signals to output delay signals with preset duration, and a switching circuit 6 is connected with the delay circuit 5 and the illumination loop 1 and responds to the delay signals to maintain the power supply of the illumination loop 1.
As shown in fig. 1 and fig. 3, the infrared sensor further includes an amplifying circuit 7 and a multi-stage comparison circuit 8, the amplifying circuit 7 is electrically connected between the infrared sensor 2 and the multi-stage comparison circuit 8, and is configured to amplify the sensing signal collected by the infrared sensor 2 in a direct proportion, the multi-stage comparison circuit 8 is connected to the delay circuit 5, and is configured to transmit a start signal to trigger the delay circuit 5 in response to the sensing signal being in a set voltage interval, wherein the amplifying circuit 7 includes an integrated operational amplifier and a coupling capacitor, and the coupling capacitor is connected in series with the integrated operational amplifier and the infrared sensor 2.
As shown in fig. 2, the determining circuit 3 includes a switching transistor and a voltage dividing resistor, the output terminal of the infrared sensor 2 is connected in series with the voltage dividing resistor to the base of the switching transistor, the collector of the switching transistor is connected to the power supply, the emitter of the switching transistor is electrically connected to the modulating circuit 4, the modulating circuit 4 includes a one-way thyristor and an adjustable potentiometer connected in series in the lighting circuit 1, and the emitter of the switching transistor is connected in series with the adjustable potentiometer to the control terminal of the one-way thyristor.
As shown in fig. 3, the delay circuit 5 includes a monostable flip-flop and an indicator light based on a chip NE555, the indicator light is connected in series with the monostable flip-flop and the switch circuit 6, and the light signal is output in response to the delay signal, specifically, the delay circuit 5 is a monostable flip-flop which uses the chip NE555 as a chip IC1, a fixed resistor R4 and a capacitor C3, a pin 2 of the monostable flip-flop is connected with an output end of the nand gate logic circuit, and a pin 3 of the monostable flip-flop is connected with a triode and a relay, so that when the monostable flip-flop receives a low-level suspension signal, a delay signal with a set duration and a high level is transmitted to the triode, and an adjustable resistor RP2 connected in series with the fixed resistor R4 is coupled between the pin 6 of the chip IC1 and the power VCC, and the set duration is adjusted by adjusting a resistance value of the adjustable resistor RP 2.
As shown in fig. 3, the multi-stage comparator includes a first voltage comparator and a second voltage comparator, the inverting input terminal and the homodromous input terminal of the first voltage comparator and the second voltage comparator are both connected to the output terminal of the amplifying circuit 7, the homodromous input terminal of the first voltage comparator is connected to a reference circuit for providing a reference voltage, the inverting input terminal of the second voltage comparator is grounded, the output terminals of the first voltage comparator and the second voltage comparator are electrically connected to a nand gate logic circuit based on a chip 74HC00, the output terminal of the nand gate logic circuit is connected to the output terminal of the delay circuit 5, the reference circuit includes a pull-up resistor and an adjustable resistor, one end of the pull-up resistor is connected to a power supply, the other end of the pull-up resistor is connected in series with the adjustable resistor and then is grounded, and the input terminal of the first voltage comparator is electrically connected to the pull-up resistor and the adjustable resistor.
In this embodiment, the first voltage comparator and the second voltage comparator both use a voltage comparison circuit of the chip LM393, the switching transistor uses an NPN-type silicon transistor, the amplifying circuit 7 is an integrated operational amplifier based on the chip LM324, and the illumination source in the illumination circuit 1 uses an LED lamp set and is connected to a full-bridge rectification circuit.
The working process is as follows: when people are close to the control panel, infrared sensor 2 detects and exports the sensing signal for voltage signal to human infrared signal, when sensing signal through the resistance conversion who is connected with the switch triode for voltage and when conducting on the switch triode, modulation circuit 4 obtains the power supply, adjust the current-voltage size of supplying with one-way silicon controlled rectifier control end through the resistance of adjusting adjustable potentiometre, adjust the conduction angle of one-way silicon controlled rectifier, adjust the illumination brightness of LED banks, be adapted to different light and shade environment, energy-concerving and environment-protective more, realize when the human body is close to control panel, can light control panel, be convenient for people carry out control operation to integrated kitchen.
When people leave the control panel, the human body infrared signal detected by the infrared sensor 2 is gradually reduced, the voltage of the induction signal is gradually reduced, the induction signal is amplified in a positive proportion through an amplifying circuit 7, and then passes through a first voltage comparator and a second voltage comparator, when the voltage of the induction signal is between the reference signal received by the first voltage comparator and zero, the first voltage comparator and the second voltage comparator both output high level, and simultaneously output a low level signal to the delay circuit 5 through the NAND gate logic circuit, because the delay circuit 5 is a monostable flip-flop, it can output a high level signal with a preset duration, then make triode Q2 switch on to make the relay get electric, maintain switching on of switch triode, reach the effect that the time delay was closed, avoid people to frequently walk and lead to the LED banks frequent bright and go out and influence LED banks life's the condition.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (8)
1. The utility model provides an integrated kitchen control panel control circuit, includes illumination return circuit (1) of being connected with the power, its characterized in that: further comprising:
the infrared sensor (2) is used for collecting human body infrared signals to output induction signals which are voltage signals;
the judgment circuit (3) is connected with the infrared sensor (2) and receives the induction signal to output a trigger signal supplied to the lighting circuit (1);
a modulation circuit (4) connected with the judgment circuit (3) and the illumination loop (1) and responding to the trigger circuit to modulate the brightness of the illumination source in the illumination loop (1);
the delay circuit (5) is connected with the infrared sensor (2) and the judgment circuit (3) and responds to disappearance of the trigger signal to output a delay signal with preset duration;
and the switching circuit (6) is connected with the delay circuit (5) and the lighting circuit (1) and responds to the delay signal to maintain the power supply of the lighting circuit (1).
2. The control panel circuit of an integrated cooker according to claim 1, wherein: still include amplifier circuit (7) and multistage comparison circuit (8), amplifier circuit (7) electric connection is between infrared sensor (2) and multistage comparison circuit (8) for be the sensing signal that infrared sensor (2) gathered of direct proportion amplification, multistage comparison circuit (8) are connected with delay circuit (5), and it is in order to carry the enabling signal in order to trigger delay circuit (5) in order to send the start signal in response to sensing signal position in the settlement voltage interval.
3. The control panel circuit of an integrated cooker according to claim 1, wherein: the judgment circuit (3) comprises a switch triode and a divider resistor, the output end of the infrared sensor (2) is connected with the base of the divider resistor in series to the switch triode, the collector of the switch triode is connected to a power supply, and the emitter of the switch triode is electrically connected to the modulation circuit (4).
4. The control panel circuit of an integrated cooker according to claim 3, wherein: the modulation circuit (4) comprises a unidirectional silicon controlled rectifier and an adjustable potentiometer which are connected in series in the lighting loop (1), and an emitting electrode of the switching triode is connected in series with the adjustable potentiometer to a control end of the unidirectional silicon controlled rectifier.
5. The control panel circuit of an integrated cooker according to claim 2, wherein: the time delay circuit (5) comprises a monostable trigger based on a chip NE555 and an indicator lamp, the indicator lamp is connected between the monostable trigger and the switch circuit (6) in series, and the light signal is output in response to the time delay signal.
6. The control panel circuit of an integrated cooker according to claim 2, wherein: the amplifying circuit (7) comprises an integrated operational amplifier and a coupling capacitor, and the coupling capacitor is connected with the integrated operational amplifier and the infrared sensor (2) in series.
7. The control panel circuit of an integrated cooker according to claim 2, wherein: the multistage comparator comprises a first voltage comparator and a second voltage comparator, wherein the reverse input end and the same-direction input end of the first voltage comparator and the second voltage comparator are both connected with the output end of the amplifying circuit (7), the same-direction input end of the first voltage comparator is connected with a reference circuit used for providing reference voltage, and the reverse input end of the second voltage comparator is grounded.
8. The control panel circuit of an integrated cooker according to claim 7, wherein: the reference circuit comprises a pull-up resistor and an adjustable resistor, one end of the pull-up resistor is connected to a power supply, the other end of the pull-up resistor is connected with the adjustable resistor in series and then is grounded, and the input end of the first voltage comparator is electrically connected with the pull-up resistor and the adjustable resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121025918.3U CN215446542U (en) | 2021-05-13 | 2021-05-13 | Control panel control circuit of integrated cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121025918.3U CN215446542U (en) | 2021-05-13 | 2021-05-13 | Control panel control circuit of integrated cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215446542U true CN215446542U (en) | 2022-01-07 |
Family
ID=79707244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121025918.3U Active CN215446542U (en) | 2021-05-13 | 2021-05-13 | Control panel control circuit of integrated cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215446542U (en) |
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2021
- 2021-05-13 CN CN202121025918.3U patent/CN215446542U/en active Active
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