CN2429760Y - Computer gas stove - Google Patents

Abstract

The utility model relates to a computer gas stove; a computer control plate, a temperature measuring handle, an electromagnetic valve, an electric control flow valve, a display and a sound device are added on an existing gas stove. A servo device is composed of an electric gas opening and closing control device, an automatic ignition control device, a temperature detecting control device, an automatic fire control device, an intelligent fuzzy control device, a gas leakage control device, etc. The utility model is provided with three safety devices for limiting the gas supply time of automatic ignition, alarming for gas leakage of reignition when the flame is accidentally extinguished and cutting off a gas source. The utility model can use gas, liquefied gas and natural gas as heat energy for matching with iron pans, aluminium pans and pressure cookers with different calibers; the utility model can carry out the full automatic control of arbitrarily timing for cooking and heating water and timing heating.

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, boils to close source of the gas and all get manually-operated, and the process of cooking is must personnel on the scene, otherwise takes place easily that food burns or soup juice is excessive, cause combustion gas extinguish, 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, the function that makes kitchen range flame-out automatic resume combustion ability, leakage alarm be arranged, hold one's breath.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, change the regularly heating of little fire, the gas leakage 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 gruel dry, 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.A LED display (7) is equipped with in the center before the panel; Regulate the button (8) of clock and temperature; Select all kinds of cooking and the interlocking button (5) of pan; Light-Emitting Diode indicator lamp (4) with correspondence; Loudspeaker (9); Behind the kitchen range face central authorities be equipped with can 360 degree rotate freely, oscilaltion, freely extend the thermometric hand (6) of shortening; Computer control circuit board (accompanying drawing 2, shown in Figure 3), by electricity, air cock control device (Fig. 3-1), gas quantity regulation device (Fig. 3-2), automatic ignition control device (Fig. 3-3), temperature detecting and controlling unit (Fig. 3-4), Intelligent Fuzzy Control device (Fig. 3-5), six servomechanism installations of gas leakage control device (Fig. 3-6) are formed; Electricity, air cock control device (Fig. 3-1) are by transformer B ₁, liquid crystal electron clock, IC ₁, integrated regulator U ₁, relay K ₁, music integrated block IC ₂, voltage-stabiliser tube DW and capacitor C, capacitor C _1-4Resistance R _1-5, R _28-29, switching tube D ₇, rectifying tube D _1-4, buzzer HTD, loudspeaker Y, LED _1-2, magnetic valve K ₄Form; Gas flow control device (Fig. 3-2) is by transformer B ₂, the integrated U of three-terminal voltage-stabilizing ₂, IC ₅, tongue tube K ₅, K ₈, relay K ₆, K ₇, motor M, intake valve and switching tube D ₁₄Rectifying tube D _8-12, resistance R _19-21, capacitor C _9-10, C _13-14Form; Automatically ignition control device (Fig. 3-3) is by photodiode PD, integrated circuit IC ₆, relay K ₉, miniature transformer B ₃, high-tension transformer B ₄, and resistance R _22-27, capacitor C _11-12, triode V ₄, V ₅, V ₆, switching tube D ₁₅, 1.5 volts of dry cells, and the igniting pin is formed; Temperature detecting and controlling unit (Fig. 3-4) is by temperature control ICHX1281 able to programme, micro controller HXTMP intelligent digital temperature control plate and relay K ₂, triode V ₂, switching tube D ₆, button AN _11-12And can rotate by 360 degree, oscilaltion, the telescopic mechanical detection hands in front and back (6) are formed; Intelligent Fuzzy Control device (Fig. 3-5) is by IC ₃, six interlocking button AN _5-10, diode D ₇, diode (LED) is indicated in six light emitting diodes, boilings ₃And resistance R _14-18, R ₃₀Capacitor C _5-6Form; Gas leakage control device (Fig. 3-6) is by the QM-N5 gas sensor, integrated circuit LM311, triode V ₃, relay K ₃, and resistance R _7-13, R ₄, RT, capacitor C _7-8Form; Above-mentioned burnt gas switch main valve is with 24 volts DC electromagnetic valve, and the gas flow control valve is made up of motor M and control 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, computer gas stove has regularly open and close gas valve, and automatic temperature-adjusting is regulated, control, and igniting automatically, flame-out, gas leakage alarm are also closed source of the gas, multiple functions such as artificial intelligence fuzzy control, constant temperature heating, the bulletin of playing music.

2, full-automatic intensity of a fire control, the time-out very hot oven is hotted plate, and regulates the intensity of a fire when food reaches boiling point in the pot automatically, keeps boiling temperature, can transfer the big fire heating again automatically to if be lower than boiling temperature.Food boils automatic self-closing gas valve and power supply.If source of the gas is closed in the constant temperature heating when reaching design temperature.

3, can be scheduled to the time of cooking, select, and can set for one day five times arbitrarily in 24 hours, computer gas stove will be finished the process of cooking automatically by setting-up time when the time comes, once set repeatedly and use, and can follow one's bent.And be furnished with stand-by power supply, not being subjected to have a power failure influences.

4, easy and simple to handle.As long as configure the time, choose the kind of cooking, put pan, food, press push button, the thermometric hand will rise in stove automatically, regulates height and orientation automatically, and temperature measuring head is pressed on the pot cover, during to setting-up time, can cook automatically, boil play music bulletin and automatic self-closing gas and power supply.

5, the computer gas stove applicability is wide.As long as mix corresponding burner and control valve, 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.

6, has artificial intelligence fuzzy control function.Under unsupervised, boil automatically, boil in a covered pot over a slow fire, stew, Baoshang, boil meal, gruel dry, the multiple cooking such as boil water, and soup juice is not excessive, food does not burn, the degree of boiling is just right; And can carry out the heating of food constant temperature, satisfy the various demands of daily life.

7, igniting automatically.One opens the i.e. igniting automatically of gas valve, stops igniting after combustion gas is lighted automatically; If when causing fray-out of flame because of outside cause, combustion gas is lighted in igniting again automatically once more again.

8, energy-conservation.Automatically the control intensity of a fire during cooking food, can be divided strong, weak two kinds of intensity of a fire, and can regulate automatically.

9, safe and reliable.Be provided with the maltilevel security protective device, (1) limits the gas supply time automatically; (2) autompulse igniting is lighted a fire when the flame accident is extinguished, again until lighting combustion gas; (3) run into gas leakage, can report to the police and automatic powered-down and source of the gas.Can avoid food to burn, the generation of contingencies such as leaking is extinguished in combustion gas, guarantees user's personal safety and safety of property,

10, the thermometric hand can rotate freely by 360 degree, oscilaltion, elastic, and operation need not be used with the pan disjunctor freely.

Below by preferred example, 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 a housing, and (2) are burner, and (3) are support, (4) LED light, (5) eight interlocking buttons, (6) thermometric hand, (7), time, temperature display, (8) time, temperature adjustment buttons, (9) loudspeaker, (10) rubber mat.

(1) in the accompanying drawing 3 is the electric switch control device, and (2) are gas flow control device, and (3) are automatic ignition control device, and (4) are the temperature detecting and controlling unit, and (5) are the Intelligent Fuzzy Control device, and (6) reveal control device for combustion gas.

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

Shown in accompanying drawing 1,2,3,4, housing is of a size of 720mm * 476mm * 200mm (length * wide * height).Do the surface by 0.5mm 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 gas-cookers such as housing, burner, air inlet pipe is fixed by securing member.Electronics should possess one day can five to be opened, five close, locking function regularly, and power supply saves (No. 5) with 1.5 volts batteries one and powers, and battery case and electronic clock shell are associated in together; Display screen and temperature display are shared.It and micro controller HXTMP intelligent digital temperature control plate, six interlocking buttons (5), light emitting diode (4) (φ 3), loudspeaker (9) is separately fixed at housing relevant position, dead ahead shown in Figure 1; Power supply in the automatic ignition device (Fig. 3-3) is fixed in the body by special box with 1.5 volts of batteries, one joint (No. 2).Electromagnetic valve model is Q23XD-2L, and operating voltage is 24 volts of direct currents, is contained in the back in the housing, and air inlet is connected with band tubing, and the gas outlet is connected with the intake valve of burner by aluminum pipe; Motor M operating voltage is 12 volts of direct currents, and the spindle end of motor is equipped with permanent magnet, and the intake valve of it and burner connects by the gear kissing, drives the intake valve forward and backward, regulates the gas quantity that enters burner; Tongue tube K ₅For open in usual.Tongue tube K ₈For normally closed type, be contained in the both sides of motor M axle respectively, normally closed tongue tube K ₈Institute's holding position is in the driven by motor intake valve and goes to burner flame when the most prosperous, the position that motor M axle magnet just makes its suction open; Often open tongue tube K ₅Institute's holding position is in motor counter-rotating, drives intake valve and goes to the weak position of burner flame.(can keep a pot interior boiling temperature, not extinguish again), i.e. motor M axle upper magnet adhesive tongue tube K just ₅The position on; Transformer B ₂Select 40 watts of power for use, output voltage is 24 volts and 12 volts of second gears, transformer B ₁Power is 3 watts, and 7.5 volts of output voltages, the spare and accessory parts of six servo control mechanisms on the computer plate are by institute's model of mark and scale value installation in the circuit theory (Fig. 3): above transformer and computer plate all are contained in the stainless steel box, are fixed on the interior dead ahead of housing centre.Burner is selected, if the burner that just selects liquefied gas to use with liquefied gas; If just use gas burner with coal gas; The thermometric hand can be designed to electronic, also can be designed to manually, this machine thermometric hand is manual, and structure is shown in (Fig. 4), its supporting member be designed to can 360 degree rotations, oscilaltion, elastic so that adapt on the lid of 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 degree 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 a side of burner (2), can receive on the flame position on the burner.

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), use button AN ₁, AN ₂Set timing, use AN ₁₁, AN ₁₂Configure maximum temperature, use AN _5-10Choose the kind of cooking, pull-up thermometric hand, adjusting height, angle on pot cover, connect AC power with the thermometric hand, transformer B ₁7.5 volts of voltages of secondary output are through D ₁-D ₄Rectification, the integrated U of three-terminal voltage-stabilizing ₁5 volts of voltage stabilizing output direct currents are to electricity, air cock control device and the power supply of gas leakage control device, LED at this moment ₁Indicator tube is bright, and the expression power supply is normal.When the liquid crystal electron clock has timing signal output or started by press button AN ₄, IC ₁2. pin is low level, and 3. pin is exported high level, relay K ₁Adhesive, contact K _1-1Connect transformer B ₂Power supply, each functional device gets electric, enters servo duty, at this moment LED ₂Indicator tube is bright, and expression enters the program of cooking, magnetic valve K ₄Get electric adhesive, see figure (3-1), opened gas valve, simultaneously relay K ₆, K ₇Normally-closed contact power to motor M, motor M is rotated, when with the rotating shaft of magnet near normally closed tongue tube K ₇The time, tongue tube K ₇Suction is opened, the stall of motor M dead electricity, and combustion gas this moment controlling valve reaches maximum, simultaneously IC ₁Enter the time-delay time status, the time that the control gas valve is opened, just close the combustion gas main valve when reaching preset time (about 30 minutes).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 produces the high-voltage pulse igniting by the igniting pin, has lighted the combustion gas on the burner (seeing Fig. 3-3).Before burner is unignited a little less than the light.Photodiode PD internal resistance is big, at this moment IC ₆2. pin is low level, and 3. pin is exported high level, relay K ₉Adhesive, the power supply of connection high pressure generator passes through V ₄Pipe, transformer B ₃Vibration, high-tension transformer B ₄The output high-voltage pulse produces firing pulse at the igniting pin, has lighted burner, begins to cook.Photodiode PD is shone by light after combustion gas is lighted, and internal resistance descends rapidly, to IC ₆2. pin input high level, IC ₆3. pin output low level, relay K ₉Discharge, the high pressure generator dead electricity, firing pulse stops.Because condition each other between photodiode PD and the high pressure generator, in case certain reason fray-out of flame, high pressure generator is exported firing pulse again, behind the ignition combustion device, photodiode PD is shone by light, IC ₆3. pin output low level again, relay K ₉Discharge, high pressure generator is dead electricity again, stops firing pulse output, and the unlikely accident of assurance burner flame is extinguished, and causes the accident.

3, the control of fire of cooking.

See (Fig. 3-4), gas flow control device is by temperature controller ICHX1281, HXTMP digital display temperature control plate; Relay K ₂IC ₃, IC ₅Relay K ₆, K ₇Tongue tube K ₅, K ₈With compositions such as direct current generator M.From (Fig. 3-2) as can be known, connect when power supply one, the combustion gas controlling valve has been opened to maximum, after connecting power supply, temperature regulating device is just started working, and the temperature measuring head that is pressed on the pot cover is just detecting kettle temperature (arbitrarily lifting of thermometric hand, decide with the pot height), when temperature was lower than boiling temperature, 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 QD pin activates, and the output high level passes through capacitor C ₁₃Transfer to the IC in (Fig. 3-2) ₅2. pin, circuit upset, IC ₅3. pin output low level, relay K ₆, K ₇Adhesive, motor M get electric counter-rotating, as the close tongue tube K that often opens of magnet that is attached in the rotating shaft ₅The time, K ₅Closure is to IC ₆2. pin is sent to a negative pulse, IC ₆3. pin is exported high level, K ₆, K ₇Dead electricity discharges, the motor M stall, and 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, with IC ₃And resistance R ₁₄-R ₁₈, R ₃₀, LED ₃And capacitor C ₅, C ₆The Intelligent Fuzzy Control device of forming of manually cooking is started working.See (Fig. 3-5), because temperature controller DQ pin state of activation is a high level, Q manages conducting, relay K ₂The energising adhesive has been connected the fuzzy control device power supply, indicator lamp LED ₃Reached fluidized state in the bright expression pot.IC ₃Enter temporary stable state, pick up counting, circuit passes through R ₁₄, R ₁₅, R ₁₆, R ₁₇, R ₁₈The middle combination of setting is to capacitor C ₆Charging, when reaching the time that food boils, (be various foods after boiling, reach boil required time) this moment IC ₃6., 7. pin voltage reaches 2/3 of supply voltage, the circuit upset is by IC ₃3. the IC of pin in (Fig. 3-1) ₁6., 7. import a forward voltage, wink crack short circuit makes IC ₁The circuit upset, relay K ₁Dead electricity discharges, transformer B ₂Outage, magnetic valve K ₄Discharge, closed the combustion gas main valve, turn-offed the power supply of each servo control mechanism simultaneously, the music integrated block IC KD153 in (Fig. 3-1) gets electric, and trigger end is subjected to IC ₃3. the triggering of pin forward electromotive force, loudspeaker ring, and tell owner the end-of-job of cooking.

5, one connect with the mains (Fig. 3-6), by QM-N5, LM311, relay K ₃, triode 3DG6 and resistance R _7-13, R ₄Rt and capacitor C _7-8The gas leakage alarm device of forming is promptly started working.As if gas leakage, airborne CO increases in cooking, and when CO reached finite concentration, the QM-N5 electrode resistance diminished, and detects the signal of telecommunication and increases, through amplifying relay K ₃Adhesive, normally open contact K _3-1Closure is with capacitor C ₄Short circuit, IC ₁6.-7. pin voltage raises, IC ₁The circuit upset, relay K ₁Dead electricity, each servo control mechanism dead electricity, solenoid closure has turn-offed fuel gas source and power supply, has prevented the accident generation.

Claims (3)

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, LED display (7) is equipped with in the center before the panel, regulates all kinds of the cooking and the interlocking button (5) of pan and light emitting diode lamp (4), the loudspeaker (9) of correspondence of button (8), manual actuation of button, selection of clock and temperature; Central authorities are equipped with and can 360 ° rotate freely oscilaltion, the thermometric hand (6) that freely stretches in front and back behind the kitchen range face; The computer control circuit board is made up of electricity, air cock control device, gas quantity regulation device, automatic ignition control device, temperature detecting and controlling unit, Intelligent Fuzzy Control device, gas leakage control device; Electricity, air cock control device are by transformer B ₁, liquid crystal electron clock, IC ₁, U ₁, relay K ₁, music integrated circuit IC ₂, voltage-stabiliser tube DW and capacitor C _1-4, resistance R _1-5, R _28-25, switching tube D ₇, rectifying tube D _1-4, buzzer HTD, loudspeaker Y form, gas flow control device is by transformer B ₂, IC ₅, tongue tube K ₅, K ₈, relay K ₆, K ₇, motor M, adjusting air valve and switching tube D ₁₄, rectifying tube D _8-12, resistance R _19-21, capacitor C _9-10, C _13-14Form; Automatically ignition control device is by photodiode PD, relay K ₉, transformer B ₃, high-tension transformer B ₄, and resistance R _22-27, capacitor C _11-12, triode V ₄, V ₅, V ₆, switching tube D ₁₅, the 1.5V dry cell, and the igniting pin forms, the temperature detecting and controlling unit is by temperature control IcHX1281 able to programme, micro controller HXTMP intelligent digital temperature control plate and relay K ₂, triode V ₂, switching tube D ₆, button AN _11-12And can 360 ° of rotations, oscilaltion, the telescopic thermometric hands in front and back (6) are formed; The Intelligent Fuzzy Control device is by IC ₃, six interlocking button AN _5-10, diode D ₇, six light emitting diodes, boiling indicator tube LED ₃, and resistance R _14-18, capacitor C _5-6Form; The gas leakage control device is by the QM-N5 gas sensor, integrated circuit LM311, triode V ₃, relay K ₃, and resistance R _7-13, R ₄, RT, capacitor C _7-8Form; The above-mentioned burnt gas switch main valve DC electromagnetic valve of 24V, be fixed on the back side in the housing, air inlet is connected with band tubing, the gas outlet is connected with the electric gas flow control valve by copper pipe or aluminum pipe, the electric gas flow control valve is made up of motor M and adjusting air valve, motor M front-end of spindle or adjusting valve shaft front end are equipped with permanent magnet, and its both sides are equipped with tongue tube K ₅, K ₈, tongue tube K ₅For open in usual, tongue tube K ₈Be normally closed type; Normally closed type tongue tube K ₈Institute's holding position is in motor drives to be regulated air valve and goes to burner flame when the most prosperous, and an axle upper magnet just makes its normally closed interlock inhale open position, often opens K reed pipe K ₅Institute's holding position is in motor counter-rotating, drives to regulate air valve and go to burner flame when being in little fire, and an axle upper magnet just makes on the position of its normally open contact adhesive.

2, it is characterized in that according to the described computer gas stove of claim 1: can 360 ° of rotations, oscilaltion, elastic thermometric hand is a thermometric on pot cover; Its horizontal stroke, vertical support bar (17,20) all be socketed to form with four stainless steel tubes of different length and diameter, 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 the stainless steel box, the bottom central part of box strikes out the arcwall face of diameter 22mm, coincide with spheroid (21), the other end and transverse support bar (17) are connected and fixed with screw, the other end of transverse support bar (17) and a specification are stainless steel box (23) welding, temperature control IcHX1281 able to programme is housed in the box, and the connecting line of temperature measuring head and computer plate is from horizontal stroke, pass through in the vertical support bar.

3, computer gas stove according to claim 1 and 2 is characterized in that: be provided with 3 safety guards in the kitchen range, be respectively: (1), qualification gas supply total time device.(2), automatically igniting, fray-out of flame is automatic ignition device again.(3), gas leakage control device.

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