CN2261575Y - Microcomputer cooking controller - Google Patents

Abstract

The utility model relates to a microcomputer cooking controller which is used for domestic steaming and stewing. The utility model is composed of an integrated circuit of a single chip micro computer, an alarming protective circuit for dried water, a power control circuit, a key input circuit, a time display circuit, and an indicating circuit for a running state. The utility model is characterized in that the circuits has simple structure, low cost, and high reliability, and the electric heating power output of 0 to 100% can be obtained; the use and operation are simple and convenient, and the utility model has more functions; the utility model has triple protection for the dried water, and the safety of the power utilization is ensured; the utility model can display the steaming and stewing time, the remaining time of the steaming and stewing process, the insulated cumulative time, etc.

Description

Micro computer is stewed the handleless cup controller

The utility model relates to a kind of family and steams the stewed handleless cup of a micro computer controller of stewing usefulness.

At present, generally the electronics of Shi Yonging is stewed cup following weak point of existence: 1, stew owing to the mode of using solid carbon dioxide to cut off the power supply finishes steaming, water seldom can not guarantee can both to stew by Steam by water bath in the stewed overall process of steaming in the stewed handleless cup near solid carbon dioxide the time; 2, power is fixing can not regulate, and is difficult to satisfy the various different requirements of stewing of steaming; 3, can not show that the time of steam stewing and temperature retention time 4, function are simple, it is not high to control degree automatically; 5, adopt direct current to make the solid carbon dioxide signal source, signal terminal is polarized and the absorption incrustation scale easily, influence the reliability of solid carbon dioxide warning work etc.

The purpose of this utility model is exactly a kind of simple in structure, practical, adjustable power is provided in order to overcome above-mentioned weak point, shows to steam and stew and the micro computer of temperature retention time complete function is stewed a handleless cup controller.

The utility model is made up of monolithic computer IC 1, solid carbon dioxide alarm and protection circuit 1, power control circuit 2, button inputting circuits 3, time display circuit 4 and running status indicating circuit 5.

Solid carbon dioxide alarm and protection circuit 1 is made up of triode (TR1, TR2), diode (D1, D2), electric capacity (C1, C2) and resistance (R16-R20).

Power control circuit 2 is made up of triode TR3, diode D3, relay J and resistance R 14.

Button inputting circuits 3 is made up of button (K1, K2, K3) and resistance (R1-R6).

Time display circuit 4 is made up of double figures sign indicating number display led 5 and resistance R 21.

Running status indicating circuit 5 is made up of light emitting diode (LED1-LED4).

Seven I/O (I/O) mouth of monolithic computer IC 1 is by the seven section inputs corresponding connection of current-limiting resistance (R7-R13) with the double figures sign indicating number display led 5 of time display circuit 4; And the solid carbon dioxide alarm signal output ends (resistance R 17) of the positive pole of four light emitting diodes (LED1-LED4) of three inputs of button inputting circuits 3, running status indicating circuit 5 and solid carbon dioxide alarm and protection circuit 1 also is connected with seven I/O (I/O) mouth of IC 1 respectively.

The negative pole of the capacitor C 1 of solid carbon dioxide alarm and protection circuit 1 is connected with a terminal Y2 in two solid carbon dioxide signal terminals; the positive pole of capacitor C 1 then is connected with the positive pole of commutation diode D1 and the end of shunt resistance R20; another signal terminal Y1 is connected an end of T level of power transformer, and the colelctor electrode of triode TR2 is connected with the base stage of the driving triode TR3 of power control circuit 2.

An I/O (I/O) mouth of monolithic computer IC 1 is connected with the base stage of the driving triode TR3 of power control circuit 2 by resistance R 14, and the colelctor electrode that drives triode TR3 then is connected with relay J.

The utility model will be further described below in conjunction with accompanying drawing:

Fig. 1 is the utility model circuit block diagram.

Fig. 2 is the utility model circuit theory diagrams.

The utility model has adopted monolithic computer IC 1, cooperates simple peripheral circuit can realize that multiple power selection, time are provided with, show to steam and stew remaining time, temperature retention time, boiling power function such as conversion and solid carbon dioxide power-off protection automatically by software.

Seven I/O (I/O) mouth of monolithic computer IC 1 of the present utility model is by software timesharing control, the double figures sign indicating number display led 5 of direct driving time display circuit 4, four light emitting diodes (LED1-LED4) of running status indicating circuit 5, accept the programming instruction of three soft-touch type buttons and from the solid carbon dioxide alarm signal of the colelctor electrode of triode TR1, therefore, one group of I/O (I/O) mouth of IC 1 need not add any components and parts and just can drive double figures sign indicating number display led 5, four light emitting diodes (LED1-LED4), accept the input signal that button and solid carbon dioxide are reported to the police, make the utility model can simplified structure, reduce cost and improve reliability.

Time display circuit 4 of the present utility model is provided with the processing of button "+" K1 and "-" K2 or software by the time, and double figures sign indicating number display led 5 can show and steams the remaining time and the temperature retention time of stewing setting-up time, steaming the process of stewing, a thing three usefulness.When pressing "+" or "-" button (K1, K2), will be set to required steaming and stew the time, the setting of whenever pressing the time of button (K1, K2) will change 0.5 hour and the prompting of buzzer BZ sounding, time is provided with scope and is (0.5 hour-9.5 hours), reduce 0.1 hour every 6 minutes show values in steaming the process of stewing, show value is for steaming the remaining time of the process of stewing.After steaming the process of stewing end, the utility model changes the insulation program automatically over to, transfers to show the temperature retention time (maximum was shown to 9.5 hours) of accumulation at insulation program double figures sign indicating number display led 5.

Power control circuit 2 of the present utility model by the software of monolithic computer IC 1, in the mode that commands relays J make-and-break time ratio changes, makes the utility model can obtain the electric thermal power output of 0-100% excursion.When pressing kinetic power button K3 continuously, will repeat successively strong, in, weak, Qiang Shizhong, strong+weak etc. five grades for you to choose, luminous and the buzzer BZ sounding prompting by indicator lamp (LED3, LED2, LED1, LED3 and LED2, LED3 and LED1) simultaneously, if when occurring to select the power shelves, stop to press the power that button K3 is exactly your required selection, this moment, corresponding indicator lamp kept luminous demonstration; When selecting two grades of " strong+in ", " strong+weak ", the utility model is earlier with prime time power Fast Heating, reach boiling the time turn to automatically " in " or " weak " shelves continue to steam and stew, so just simulated the operation of the firepower that slows down after people are extremely seethed with excitement with the vigorous fire steaming is stewed usually, make the work that needs a period of time to divert one's attention to pay close attention to usually, can operate automatically now and do not had trouble and worry.In addition, set " strong, in, weak " the third gear power of the utility model also can satisfy the various different needs that steam the condition of stewing.

Solid carbon dioxide alarm and protection circuit 1 of the present utility model, be to adopt AC power to make the solid carbon dioxide signal source, two signal electrode terminal (Y1, Y2) be installed in the bottom of stewing handleless cup, when water is arranged, the alternating voltage of T level of transformer, through Y1 terminal → water → Y2 terminal → capacitor C 1, after commutation diode D1 rectification and capacitor C 2 filtering, become DC voltage, and make triode TR1 saturation conduction, its colelctor electrode output low level, at this moment, low level is through the I/O mouth of R17 input ic IC1, be defined as non-solid carbon dioxide state, low level makes triode TR2 end simultaneously, TR3 does not have the shunting action of clamping down on to triode, at this moment the utility model is in normal operating condition, but when water level is lower than two signal electrode terminal Y1, during Y2 (being that water is done), there is not ac signal through the water conduction and by commutation diode D1 rectification, at this moment, triode TR1 does not end because of there being voltage input base stage, colelctor electrode output high level, be transported to an I/O mouth of IC 1 and be defined as the solid carbon dioxide signal through resistance R 17, after software is handled, monolithic computer IC 1 is with the base stage of output low level to the triode TR3 of power control circuit 2, make triode TR3 by causing the relay J outage to discharge, force heat-generating pipe H outage to quit work; Meanwhile; the high level of the triode TR1 output that ends makes triode TR2 conducting through resistance R 16; its colelctor electrode is clamped down in low level the base stage of triode TR3; force triode TR3 cutoff relay J outage to discharge; heat-generating pipe H outage is quit work; thereby play the effect of solid carbon dioxide power-off protection, above-mentioned software protection and circuit protection are simultaneously with identical to the pressure of the relay effect of cut-offfing, and effect is malfunctioning, and another is filled in addition.In addition, if both are all malfunctioning, the temperature after water is done in stewing handleless cup has reached when giving fixed ceiling temperature; the overtemperature prote fuse Q that connects with heat-generating pipe H will fuse; make heat-generating pipe H outage and quit work, the possibility of having avoided accident to take place, and reach the purpose of power-off protection.Triple protection effect of the present utility model greatly improves the safeguard protection effect of product.

When using the utility model, plug in earlier, at this moment, double figures sign indicating number display led 5 shows 2.0 hours, expression the utility model is in wait state.For example needing " strong+in " shelves, steaming the time of stewing is five hours, press kinetic power button K3, when prime time indicator lamp LED3 and middle-grade indicator lamp LED2 are simultaneously luminous, stop by kinetic power button K3 just be confirmed to be by force+middle-grade, at this moment strong, middle indicator lamp (LED3, LED2) maintenance is luminous; Press "+" or "-" button (K1, K2) again and choose the stewed time of required steaming, press "+" key K1 this moment and arrive 5 demonstrations of double figures sign indicating number display led till 5.0 hours, be changed to 0.5 hour of each grade of time is set, when the power shelves or the time bay buzzer BZ can the sounding prompting when changing.Setting completed for application program, the utility model begins to enter duty, after it can heat water to boiling with the prime time earlier, automatically changing the middle-grade Steam by water bath that carries out over to stewes, in steaming the process of stewing, reduce 0.1 hour every 6 minutes digital displaying values, the show value of double figures sign indicating number display led 5 is to steam and stewes remaining time, when the time that double figures sign indicating number display led 5 shows is 0.0, steam and stew course of work end and change keeping warm mode automatically over to, this moment, buzzer BZ can extinguish by the stewed power indicator lamp of sounding prompting former steaming simultaneously, be incubated bright showing of indicator lamp LED4, steam stewing material temperature at insulating process approximately remains on about 75 degree and by the temperature retention time (per 6 minute change the time that shows insulation, maximum be shown to 9.5 hour) of double figures sign indicating number display led 5 with accumulation and shows.

Characteristics of the present utility model are: 1, the integrated circuit structure is very simple, therefore Be conducive to reduce cost and improve reliability; 2 when utilizing software control relay break-make Between straightforward procedure, the electric thermal power that can obtain the 0-100% excursion is defeated Go out; 3, use is simple to operation, practical, has several functions, can make usually Manually-operated become automatic operation; 4, have triple (computer software, electronics electricity Road, electric elements) the solid carbon dioxide protection, guarantee Electrical Safety, reduce human accident and take place Possibility; 4, double figures code display can show setting the time that stews, stewed The remaining time of journey and the accumulated time of insulation; 5, the variation of each function and time Setting or solid carbon dioxide warning buzzer all can sound production prompt, and indicator lamp indicated horsepower is arranged Power or running status etc.

Claims (1)

1. A kind of micro computer is stewed the handleless cup controller, it is characterized in that being made up of monolithic computer integrated circuit (IC1), solid carbon dioxide alarm and protection circuit (1), power control circuit (2), button inputting circuits (3), time display circuit (4) and running status indicating circuit (5);

   Solid carbon dioxide alarm and protection circuit (1) is made up of triode (TR1, TR2), diode (D1, D2), electric capacity (C1, C2) and resistance (R16-R20);

   Power control circuit (2) is made up of triode (TR3), diode (D3), relay (J) and resistance (R14);

   Button inputting circuits (3) is made up of button (K1, K2, K3) and resistance (R1-R6);

   Time display circuit (4) is made up of double figures sign indicating number display (LED5) and resistance (R21);

   Running status indicating circuit (5) is made up of light emitting diode (LED1-LED4);

   Seven I/O (I/O) mouth of monolithic computer integrated circuit (IC1) is by the seven section inputs corresponding connection of current-limiting resistance (R7-R13) with the double figures sign indicating number display (LED5) of time display circuit (4); And the solid carbon dioxide alarm signal output ends (resistance R 17) of the positive pole of four light emitting diodes (LED1-LED4) of three inputs of button inputting circuits (3), running status indicating circuit (5) and solid carbon dioxide alarm and protection circuit (1) also is connected with seven I/O (I/O) mouth of integrated circuit (IC1) respectively;

   The negative pole of the electric capacity (C1) of solid carbon dioxide alarm and protection circuit (1) is connected with a terminal (Y2) in two solid carbon dioxide signal terminals, the positive pole of electric capacity (C1) then is connected with the positive pole of commutation diode (D1) and an end of shunt resistance (R20), another signal terminal (Y1) is connected the secondary end of power transformer (T), and the colelctor electrode of triode (TR2) is connected with the base stage of the driving triode (TR3) of power control circuit (2);

   An I/O (I/O) mouth of monolithic computer integrated circuit (IC1) is connected with the base stage of the driving triode (TR3) of power control circuit (2) by resistance (R14), and the colelctor electrode that drives triode (TR3) then is connected with relay (J).

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