CN1263230A

CN1263230A - Computer gas stove

Info

Publication number: CN1263230A
Application number: CN 99101917
Authority: CN
Inventors: 陈玉山
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-28
Filing date: 1999-01-28
Publication date: 2000-08-16
Anticipated expiration: 2019-01-28
Also published as: CN1114793C

Abstract

The computer gas range is formed from the devices of electric and gas switching control, automatic lighting control, temp. detection control, intelligent fuzzy control and gas leakage control, etc., and is equipped with three safet devices; (1). limiting gas-supplying time; (2) automatic lighting, when the flame is cut off unexpectedly, it can be relighted, and (3) when the gas is leaked or superhigh temp. is produced, it can alarm, and turn off power supply and gas source. Said invention can use gas, liquified gas and natural gas as heat source, and can be matched with iron pot, aluminium pot, frying pan and pressure cooker, and can be used for making various cooking processes of boiling, stewing, closed steaming and decocting, etc.. Besides, it possesses the time and temp. indication function.

Description

Computer gas stove

The present invention relates to the computer gas stove of automation control.

As everyone knows, used coal gas is gone up by society at present, and liquefied gas cooker is from opening air valve, igniting is cooked, and regulates the intensity of a fire, boil to close source of the gas and all get manually-operated, and the necessary personnel of the process of cooking is on the scene, otherwise take place easily that food burns or soup juice is excessive, cause combustion gas to be extinguished, leak, accidents caused.In view of the above, people transform gas-cooker, propose to increase the automatic control corollary apparatus.CN1101972A discloses as Chinese patent: " multifunctional protecting of liquid fuel burner and control circuit ", it has automatic sparking system, makes kitchen range that flame-out automatic resume combustion ability, leakage alarm, the function of holding one's breath be arranged.Chinese patent CN-2286838N discloses " gas-cooker microcomputer controller " and has sent the information control magnetic valve and the actuating of relay by single-chip microcomputer, so that in time turn-off gas circuit, has realized regularly boiling, and overtemperature alarm is flame-out.Chinese patent CN-2047759N discloses " kitchen range are controlled in combustion gas automatically ", and its function comprises automatic realization: igniting, big fire regularly heats, the temperature control heating, changes the regularly heating of little fire, leaks gas the fire alarm warning of stopping the supple of gas or steam.More than install all only local subproblem that solves gas-cooker.

The present invention seeks in order to overcome above defective, what the control of a kind of computer was provided has good combination property, a computer gas stove that applicability is wide.Heat energy is made in (seeing accompanying drawing 1) its available various combustion gas, matches with iron pan, aluminum pot, the pressure cooker of various models, possesses to boil, boil in a covered pot over a slow fire, stew, Baoshang, boil dry, gruel, boil water and the full-automation control function of constant temperature heat food.

The solution of the present invention is that gas-cooker is set up computer control panel, thermometric hand, electromagnetism burnt gas switch valve, electric gas flow control valve, news sound device.Kitchen range housing (1) is designed to rectangle structure.Two LCDs (8,10) are equipped with in the panel center.Regulate all kinds of the cooking and the interlocking button (5) of pan and Light-Emitting Diode indicator lamp (7), loudspeaker (3), the hand switch (9) of correspondence of button, manual actuation of button, selection of clock and temperature.Kitchen range face central authorities are equipped with and can 360 ° execute commentaries on classics, and the thermometric hand (6) that shortens is freely extended in oscilaltion.Computer control circuit board (accompanying drawing 2, shown in Figure 3) by, air cock control device (Fig. 3-11) gas quantity regulation device (Fig. 3-12), automatic ignition control device (Fig. 3-13), temperature detecting and controlling unit (Fig. 3-14), Intelligent Fuzzy Control device (Fig. 3-15), six servomechanism installations of gas leakage control device (Fig. 3-16) are formed,, the air cock control device is by transformer B1, the liquid crystal electron clock, Ic1, integrated regulator U1, relay K 1, music-integrating block Ic2, voltage-stabiliser tube DW and capacitor C 1-4, resistance R 1-5, switching tube D7, rectifying tube D1-4, buzzer HTD, loudspeaker Y forms, gas flow control device (Fig. 3-12) is by transformer B2, magnetic valve K10, Ic5, tongue tube K5, K8, relay K 6, K7, motor M, intake valve and switching tube D14, rectifying tube D8-12, resistance R 19-21, capacitor C 9-10 forms, automatically ignition control device (Fig. 3-13) is by photodiode PD, integrated circuit Ic6, relay K 9, miniature transformer B3, high-tension transformer B4, and resistance R 22-27, capacitor C 11-12, triode V4, V5, V6, switching tube D15,1.5 volt dry cell, and composition is chewed in igniting, temperature detecting and controlling unit (Fig. 3-14) is by temperature control IcHX1281 able to programme, micro controller HXTMP intelligent digital temperature control plate, and relay K 2, triode V2, switching tube D6, button AN11-12 and can 360 ° of rotations, oscilaltion, the telescopic detection hand 6 in front and back is formed, Intelligent Fuzzy Control device (Fig. 3-16) is by Ic3, six interlocking button AN5-10, diode D7, six light emitting diodes and resistance R 14-18, capacitor C 5-6 forms.Gas leakage control device (Fig. 3-16) is by the QM-N5 gas sensor, integrated circuit LM311, triode V3, relay K 3 and resistance R 7-13, capacitor C 7-8 forms, above-mentioned burnt gas switch main valve is with 24 volts DC electromagnetic valve, and gas flow control valve is made up of motor M and flow valve.

Computer gas stove is compared with existing all kinds of gas-cookers and all kinds of control technology designed according to this invention, and following advantage is arranged:

1, can be scheduled to the time of cooking, select arbitrarily in 24 hours, computer gas stove is finished the process of cooking automatically when the time comes, and once predetermined use is repeatedly accomplished to follow one's bent.And be furnished with power autonomously, do not lost film and ring.

2, easy and simple to handle.As long as reserve the time in advance, choose the kind of cooking, put pan, food, thermal detector is pressed on the pot cover, plug in or click the startup button, can finish the process of cooking automatically, the alarm of playing music that finishes, automatic self-closing gas and power supply.

3, the computer gas stove applicability is wide.As long as mix corresponding tray for combustion, coal gas, liquefied gas, natural gas, biogas all are suitable for, and need not special-purpose pan, and the aluminum pot of any model, iron pan, pressure cooker can supportingly use.

4, has artificial intelligence fuzzy control function.Under unsupervised, boil automatically, boil in a covered pot over a slow fire, stew, Baoshang, boil dry, gruel, boil water and soup juice not excessive, food does not burn, the degree of boiling is just to suitable place.And can carry out the heating of food constant temperature, satisfy living needs.

5, igniting automatically.One opens the i.e. igniting automatically of gas valve, stops igniting after combustion gas is lighted automatically; In case certain reason fray-out of flame can be sent firing pulse again automatically again, lights combustion gas once more.

6, energy-conservation.Automatically control the intensity of a fire, the beginning very hot oven of cooking is hotted plate, and when food reaches boiling temperature in the pot, regulates the intensity of a fire automatically, keeps boiling temperature, and food boils automatic self-closing gas valve, power supply.If the constant temperature heating reaches design temperature and promptly closes source of the gas.

7, safe and reliable.Be provided with the triple safe protective device, avoid food to burn, accident such as leak is extinguished in combustion gas, guarantees the person, property safety.

8, programmed settings temperature voluntarily, thermometric hand can 360 ° of rotations, oscilaltion, front and back elongation, shorten, and operation need not be used simultaneously with pan is fixing freely.

9, computer gas stove has the good ratio of performance to price.

Below by most preferred embodiment, and in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 come further the computer gas stove overall process of cooking is described.

Fig. 1 is this computer gas stove front appearance schematic diagram.

Fig. 2 is the electrical block diagram of this computer gas stove.

Fig. 3 is the circuit theory diagrams of this computer gas stove.

Fig. 4 is the structural map of this computer gas stove thermometric hand.

(1) in the accompanying drawing 1 is that housing, (2) are time display screen for temperature display, (9) for hand switch, (10) for light emitting diode lamp, (8) for temperature detection hand, (7) for start button, (6) for loudspeaker, (4) rubber mat, (5) for tray for combustion, (3).

(11) in the accompanying drawing 3 are that electric switch control device, (12) are gas leakage control device for temperature detecting and controlling unit, (15) for Intelligent Fuzzy Control device, (16) for automatic ignition control device, (14) for gas flow control device, (13).

(17) in the accompanying drawing 4 are that transverse support bar, (18) are that base plate, (23) be temperature detecting head for vertical support bar, (21) for spheroid, (22) for fixed screw, (20) for fixed screw, (19).

Shown in accompanying drawing 1,2,3,4, housing is of a size of 720 * 476 * 200 (length * wide * height).Do the surface by 0.5 stainless steel forging forming, four jiaos are camber, and one deck Teflon lacquer, accomplish oily dirt free.The pad pin forms with rubber.Each member of housing is fixed by securing member.Electronic watch selects for use MT-9908C that regularly locking function is arranged, and 1.5 volts of power supplys are with No. 5 powered battery, and battery case and electronic clock shell are associated in simultaneously.It and micro controller HXTMP intelligent digital temperature control plate, six interlocking buttons, light emitting diode (φ 5) loudspeaker is separately fixed at housing relevant position, dead ahead shown in Figure 1.1.5 volts of power supplys and the electronic clock used in the automatic ignition device share.Electromagnetic valve model is Q23XD-2L, and operating voltage is 24 volts of direct currents, is contained in the back side in the housing, and air inlet is connected with the rubber tube of φ 9, and the gas outlet is connected with the intake valve of tray for combustion by φ 9 rubber tubes.Motor M operating voltage is 6 volts of direct currents, and the spindle end of motor is equipped with permanent magnet, and the intake valve of it and tray for combustion connects by the gear kissing, drives the intake valve forward and backward, regulates the gas quantity that enters tray for combustion.Tongue tube K5 is open in usual.Tongue tube K8 is a normally closed type, is contained in the both sides of motor M axle respectively, and normally closed tongue tube K8 institute holding position is in the driven by motor intake valve and goes to tray for combustion flame when the most prosperous, and motor M axle magnet just makes tool inhale the position of opening.Often open tongue tube K5 institute holding position and be in motor counter-rotating, drive intake valve and go to the weak position of tray for combustion flame.(can keep a pot interior boiling temperature, not extinguish again), promptly motor M axle upper magnet is just on the position of adhesive tongue tube K5.Transformer B2 selects power 40W for use, and output voltage is 24 volts and 6 volts of second gears, and transformer B1 power is 3W, 6 volts of output voltages, and the spare and accessory parts of six servo control mechanisms on the computer plate are by institute's model of marking and scale value installation among circuit theory Fig. 3.Above transformer and computer plate all are contained in the stainless steel box, are fixed on dead ahead centre in the housing.Tray for combustion is selected, if the tray for combustion that just selects liquefied gas to use with liquefied gas; If just use the gas-fired dish with coal gas.Thermometric hand structure as shown in Figure 4, its supporting member is designed to can 360 ° of rotations, ascending, descending up and down is forward and backward flexible, on the lid that adapts to the iron pan that is pressed in different model, aluminum pot, pressure cooker.Its horizontal, vertical support bar (17,20) all is socketed to form with four stainless steel tubes of different length and diameter, and wherein three can limitedly elongate or shorten.The spheroid welding of an end of one of maximum gauge and diameter 20mm in the vertical support bar (20), spheroid (21) is contained in 50 * 30 * 26 the stainless steel box, bottom central part part of box strikes out the arcwall face of diameter 22mm, with and spheroid (21) coincide so that vertical support bar can 360 ° of rotations.The other end and transverse support bar (17) are connected and fixed with screw, the other end of transverse support bar (17) and specification are 45 * 20 * 15 stainless steel box (23) welding, temperature control IcHX1281 able to programme is housed in the box, and the lead that is connected of temperature measuring head and computer plate passes through in horizontal, vertical support bar.Photodiode is contained in one of tray for combustion (2) and surveys, and can receive on the flame position on the tray for combustion.

The working procedure of computer gas stove is when cooking:

1, regularly provides each servo control mechanism power supply, open the combustion gas main valve, mix up gas flow.

See figure (3-1), with button AN1, AN2, set timing, configure maximum temperature with AN11, AN12, choose the kind of cooking with AN5-10, connect AC power, 6 volts of voltages of B1 level output of transformer after the D1-D4 rectification, are powered to timing means.Export or started by press button AN4 when the liquid crystal electron clock has timing signal, Ic1 2. pin is low level, and 3. pin is exported high level, and transformer B2 power supply is connected in relay K 1 adhesive, and each functional device gets electric, enters servo duty.Magnetic valve gets electric adhesive, sees figure (3-2), has opened gas valve.The normally-closed contact of relay K 6, K7 is powered to motor M simultaneously, and motor M is rotated.When with the rotating shaft of magnet during near normally closed tongue tube K7, tongue tube K7 inhales and opens the stall of motor M dead electricity.Combustion gas this moment controlling valve reaches maximum.Ic1 enters the time-delay time status simultaneously, the time that the control gas valve is opened, just closes the combustion gas main valve when reaching preset time (pre-1 hour).Avoid indivedual servo control mechanisms malfunctioning and cause the accident.

2, light combustion gas, begin to cook.

When opening gas valve and regulation and control gas flow, the igniter energising is chewed the igniting of generation high-voltage pulse by igniting, has lighted the combustion gas on the tray for combustion.(seeing Fig. 3-3) is before tray for combustion is unignited a little less than the light.Photodiode PD internal resistance is big, this moment Ic6 2. pin be low level, 3. pin is exported high level, relay K 9 adhesives, the power supply of connection high pressure generator is by V4 pipe, transformer B3 vibration, high-tension transformer B4 exports high-voltage pulse, chew the generation firing pulse in igniting, lighted tray for combustion, begin to cook.Photodiode PD is shone by light after combustion gas is lighted, and internal resistance descends rapidly, and to 2. pin input high level of Ic6, Ic6 is the pin output low level 3., and relay K 9 discharges, the high pressure generator dead electricity, and firing pulse stops.Owing to condition each other between photodiode PD and the high pressure generator, in case certain reason fray-out of flame, high pressure generator sends firing pulse again, and behind the ignition combustion dish, photodiode PD is shone by light, Ic6 is pin output low level again 3., relay K 9 discharges, and high pressure generator is dead electricity again, stops firing pulse output, the unlikely accident of assurance tray for combustion flame is extinguished, and causes the accident.

3, the control of fire of cooking.

See (Fig. 3-4), the gas quantity regulation device is by temperature controller IcHX1281, HXTMP digital display temperature control plate, relay K 2, integrated circuit Ic3, Ic5, relay K 6, K7, compositions such as tongue tube K5, K8 and direct current generator M.From (Fig. 3-2) as can be known, connect when power supply one, the combustion gas controlling valve is opened to maximum.After connecting power supply, temperature regulating device is just started working, the thermometric hand that is pressed on the pot cover is just detecting kettle temperature (arbitrarily lifting of thermometric hand, decide with the pot height), this moment, the DQ pin of adjustable temperature control IcHX1281 was a low level, when kettle temperature reaches boiling temperature, when promptly reaching the maximum temperature that IcHX1281 presets, the DQ pin activates, the output high level, by switching tube D transfer in (Fig. 3-2) Ic5 2., 6. pin, the circuit upset, Ic5 is the pin output low level 3., relay K 6, K7 adhesive, motor M get electric counter-rotating, magnet on being attached to rotating shaft is when often opening tongue tube K5, the K5 closure, to Ic6 2., 6. pin is sent to a negative pulse, and Ic6 is pin output high level 3., K6, the K7 dead electricity discharges, the motor M stall, combustion gas this moment controlling valve just transfers to the low baking temperature state, continues to cook.

4, the artificial intelligence fuzzy control of cooking.

When food temperature reaches boiling temperature in the pot, start working with the Intelligent Fuzzy Control device of manually cooking that Ic3 and resistance R 14-R18 and capacitor C 5, C6 form.See (Fig. 3-5), because temperature controller DQ pin state of activation is a high level, Q manages conducting, relay K 2 energising adhesives, connected the fuzzy control device power supply, Ic3 enters temporary stable state, picks up counting, circuit passes through R14, R15, R16, R17, the combination of setting among the R18 is to capacitor C 6 chargings, when reaching the time that food boils, (be various foods after boiling, reach boil required time) this moment Ic3 6., 7. pin voltage reach supply voltage 23, circuit upset, 3. the Ic1 of pin in (Fig. 3-1) be 6. by Ic3,7. pin is imported a forward voltage, make the upset of Ic1 circuit, relay K 1 dead electricity discharges, transformer B2 outage, magnetic valve discharges, closed the combustion gas main valve, turn-offed the power supply of each servo control mechanism simultaneously, the music IcKD153 in (Fig. 3-1) gets, loudspeaker rings, and tells owner the end-of-job of cooking.

5, when electricity, air cock control device the time, promptly start working by the gas leakage alarm device that QM-N5, LM311, relay K 3, triode 3DG6 and some resistance and electric capacity are formed on schedule to each servo control mechanism air feed, power supply.If gas leakage, airborne CO increases, when CO reaches finite concentration, the QM-N5 electrode resistance diminishes, and detects the signal of telecommunication and increases, through amplifying, relay K 3 adhesives, normally open contact K3-1 closure is with capacitor C 4 short circuits, Ic1 6.-7. pin voltage raises, the upset of Ic1 circuit, relay K 1 dead electricity, each servo control mechanism dead electricity, solenoid closure has turn-offed fuel gas source and power supply, has prevented the accident generation.

Claims

1, computer gas stove comprises gas-cooker, it is characterized in that setting up in the gas-cooker computer control panel, thermometric hand, electromagnetism burnt gas switch valve, electric gas flow control valve, news sound device; Kitchen range housing (1) is designed to rectangle structure, two LCDs (8,10) are equipped with in the panel center, regulate all kinds of the cooking and the interlocking button (5) of pan and light emitting diode lamp (7), loudspeaker (3), the hand switch (9) of correspondence of button, manual actuation of button, selection of clock and temperature; Kitchen range face central authorities are equipped with can 360 ° of rotations, oscilaltion, the thermometric hand (6) that freely stretches in front and back; Computer control circuit board (accompanying drawing 2, shown in Figure 3) is made up of electricity, air cock control device (Fig. 3-11) gas quantity regulation device (Fig. 3-12), automatic ignition control device (Fig. 3-13), temperature detecting and controlling unit (Fig. 3-14), Intelligent Fuzzy Control device (Fig. 3-15), six servomechanism installations of gas leakage control device (Fig. 3-16); ; the air cock control device is by transformer B1; the liquid crystal electron clock; Ic1; integrated regulator U1; relay K 1; music-integrating block Ic2; voltage-stabiliser tube DW and capacitor C 1-4; resistance R 1-5; switching tube D7; rectifying tube D1-4; buzzer HTD; loudspeaker Y forms; gas flow control device (Fig. 3-12) is by transformer B2; magnetic valve K10; Ic5; tongue tube K5; K8; relay K 6; K7; motor M; intake valve and switching tube DI4; rectifying tube D8-12; resistance R 19-21; capacitor C 9-10 forms; automatically ignition control device (Fig. 3-13) is by photodiode PD; integrated circuit Ic6; relay K 9; miniature transformer B3; high-tension transformer B4; and resistance R 22-27; capacitor C 11-12; triode V4; V5; V6; switching tube D15; 1.5 volt dry cell; and composition is chewed in igniting; temperature detecting and controlling unit (Fig. 3-14) is by temperature control IcHX1281 able to programme; micro controller HXTMP intelligent digital temperature control plate; and relay K 2; triode V2; switching tube D6; button AN11-12 and can 360 ° of rotations; oscilaltion; the telescopic detection hands in front and back (6) are formed; Intelligent Fuzzy Control device (Fig. 3-15) is by Ic3; six interlocking button AN5-10; diode D7; six light emitting diodes and resistance R 14-18; capacitor C 5-6 forms; gas leakage control device (Fig. 3-16) is by the QM-N5 gas sensor; integrated circuit LM311; triode V3; relay K 3; and resistance R 7-13; capacitor C 7-8 forms; above-mentioned burnt gas switch main valve is with 24 volts DC electromagnetic valve; be fixed on the back side in the housing; air inlet is connected with the rubber tube of Φ 9; the gas outlet is connected with electronic intake valve by rubber tube; gas flow control valve is made up of motor M and flow valve; motor M front-end of spindle or air inlet valve shaft front end are equipped with permanent magnet; its both sides are equipped with tongue tube K5; K8; tongue tube K5 is open in usual, and tongue tube K8 is a normally closed type; Normally closed tongue tube K8 institute holding position is in the motor drives intake valve and goes to tray for combustion flame when the most prosperous, the axle upper magnet just makes its normally closed interlock inhale open position, often open K reed pipe K5 institute holding position and be in the motor counter-rotating, drive intake valve and go to the weak position of tray for combustion flame, (can keep a pot interior boiling temperature, do not extinguish again), promptly the axle upper magnet is just on the position of adhesive tongue tube K5.

2, according to claim 1, the structure of thermometric hand is that its supporting member is designed to can 360 ° of rotations, oscilaltion, elastic, to adapt to the iron pan that is pressed in different model, aluminum pot, on the lid of pressure cooker, its horizontal stroke, vertical support bar (17,20) all be socketed to form with four stainless steel tubes of different length and diameter, wherein three can limitedly elongate or shorten, the hollow ball welding of an end of one of maximum gauge and diameter 20mm in the vertical support bar (20), spheroid (21) is contained in 50 * 30 * 26 the stainless steel box, bottom central part part of box strikes out the arcwall face of diameter 22mm, coincide with spheroid (21), so that vertical support bar can 360 ° of rotations, the other end and transverse support bar (17) are connected and fixed with screw, the other end of transverse support bar (17) and specification are 45 * 20 * 15 stainless steel box (23) welding, and temperature control IcHX1281 able to programme is housed in the box, temperature measuring head and computer plate be connected lead from horizontal stroke, pass through in the vertical support bar.

3, according to the claim 1 of computer gas stove, automatic ignition device is formed automatic ignition device by photo resistance or photodiode and electronics high pressure generator.When opening gas valve and regulation and control combustion gas metered valve, produce the high-voltage pulse igniting automatically, after tray for combustion is lighted, because the effect of illumination, the photodiode internal resistance descends, the time base Ic6 the internal circuit upset, automatically shut down the high pressure generator power supply, stop high-voltage pulse and take place.Wherein become the mutual restriction relation between photo resistance and the high pressure generator, in case certain reason fray-out of flame can be lighted a fire again again automatically, stop igniting after lighting again automatically, the unlikely accident of assurance tray for combustion flame is extinguished.

4, according to claim 1, this computer gas stove has 3 safety guards, is respectively: 1, set gas supply total time.2, igniting automatically, fray-out of flame is igniting automatically again.3, gas leakage, superhigh temperature warning device.