CN107402588A - A kind of protein gel based food heating coagulation system based on Ohmic heating - Google Patents
A kind of protein gel based food heating coagulation system based on Ohmic heating Download PDFInfo
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Dairy Products (AREA)
Abstract
The present invention relates to a kind of protein gel based food based on Ohmic heating to heat coagulation system.The device includes control panel, cover, fuselage, base, power switch, three-hole power socket；Control panel is pasted onto on upper-cover by gum 3M468, and its control terminal is connected by wire and the corresponding interface of control board；Cover is made up of upper-cover, lower cover, control board, upper coupler, DS18B20 temperature sensor watertight transducers；Fuselage is made up of fuselage cover, heating inner liner, battery lead plate, stainless steel spring piece, lower coupler；The present apparatus, which is based on Ohmic heating, can realize one-touch making multiple protein gel based food and milk, soya-bean milk etc. food liquid sterilization heat treatment, its is multiple functional, it is simple to operate, it is small and beautiful, homogeneous heating, energy conversion efficiency is high, and cost is relatively low, and it is safe and reliable, the producing efficiency and quality of protein gel based food can be improved.
Description
Technical field
The present invention relates to a kind of food to heat solidification producing device, more particularly to a kind of protein gel based on Ohmic heating
Based food heats coagulation system.
Background technology
As the improvement of people's living standards, the nutritive value of soybean, egg and milk is increasingly paid attention to by people.Section
Research is learned to show, the bean product such as bean curd can pre- preventing bone rarefaction, angiocardiopathy, mitigate women's climacteric syndrome etc., tool
There is disease-prevention health effect.Egg custard etc. rich in lecithin, protein then have brain tonic and intelligence development, protection liver, preventing and treating artery sclerosis,
The functions such as pre- anti-cancer, anti-aging；And the dairy products such as milk pudding then have tonifying lung nourishing the stomach, ease constipation of promoting the production of body fluid, promote heart and god
Fatigue durability through system, moist skin, promote skeleton development and other effects.Therefore, as by pulpous states such as soybean, egg, milk
Material heating solidification gel protein gel based food, such as：The not only albumen such as bean curd, egg custard, egg-milk pudding, Yoghourt
Matter rich content, while be also enriched in several amino acids necessary to human body, the mineral matter such as calcium, phosphorus, iron, and multivitamin and
Cellulose etc., nutritive value is high, and wide in variety, and flavor, mouthfeel are various, therefore deep people like.
The manufacturing process of protein gel based food is exactly by being heated to slurry materials such as soya-bean milk, milk, egg liquids, accelerating egg
The strenuous exercise of white molecule, mutually hit due to intermolecular, split off the hydrogen bond of Protein requirement space structure, change original albumen
The space structure of matter, so as to destroy the hydration shell of outside, extramolecular electric double layer is removed, internal protein is combined, shape
Into colloidal sol, even if protein heat denaturation.And it is incubated a period of time generation gel reaction, final gel forming.I.e. have heating and
The isothermal solidifying stage.Heat time is long or too short, then can cause polypeptide breakdown and reaction of saltouing respectively, is unfavorable for the solidifying of gel
Gu shaping；And the rate of heat addition is too fast, gelling value can be caused uneven；Holding temperature is too high or too low, then can cause to eat respectively
Product nutrient component damages are big and gel reaction can not occur；Soaking time is too short, and gel forming can be caused insufficient.Therefore, add
Hot speed, isothermal solidifying temperature, soaking time directly affect gel-forming speed, coagulation grade and the matter of protein gel based food
Structure quality.
Made for egg custard, egg-milk pudding etc., there is presently no independent producing device, it is common to use baking box,
The heaters such as steamer heat making to it.Therefore the rate of heat addition whard to control, holding temperature and time, completely by virtue of experience,
Manufacture difficulty is larger, and research shows, when the rate of heat addition is too fast, and setting temperature is higher than 80 DEG C, is collided between protein molecule acute
Strong, gel network synthesis speed is fast, and the protein molecule of curling can not sufficiently stretch, and causes the hydrophobic group of inside can not fill
Divide and be exposed to molecular surface, therefore the texture of egg-milk pudding can be influenceed.And setting temperature is different, complete setting time also can
Vary widely, so as to influence to solidify hardness, i.e. quality.
And the existing Yogurt making machine that Yoghourt is fabricated separately of in the market, it is mainly carried out by Resistant heating mode to cow's milk
Heat-preservation fermentation is molded.But temperature is constant (45 degree or so), can not be heated at high temperature, therefore can only make Yoghourt, and function is single.
And the making of bean curd then mainly makes raw soya-bean milk by mode mashing offs such as straight fiery heating, Resistant heating, steam heating
In soybean protein produce thermal denaturation, and in insulating process pass through the effect of coagulator, occur gel reaction formed gel
Shape bean curd.And soya-bean milk interior temperature distribution is uneven during these traditional heating modes can all make mashing off, mashing off quality is influenceed, easily
Make the solidification failure of gel bean curd, and bean curd color and luster can be caused uneven, influence the intensity and texture uniformity of bean curd, cause energy consumption
Height, heat waste are serious, increase the production cost of bean curd.Therefore, the rate of heat addition and setting temperature, setting time are efficiently controlled
Making to protein gel based food is most important.Yet with different protein gel based foods, required optimal heating speed
Rate, setting temperature and setting time are also different, therefore do not occur a kind of independent multiple protein that makes also in the market and coagulate
The multi-function device of glue based food.
Ohmic heating, using the dielectric property of food in itself, is led to as a kind of Novel heating method with development potentiality
Cross to material both ends and apply electric field, make its internal generation electric current, convert electrical energy into heat energy, cause food temperature to raise, so as to
Reach Direct Uniform and add thermally-sterilized purpose.Compared with other conventional heating methods such as：Heat transfer, thermal convection current and heat radiation add
Heat, there is heating quick, homogeneous heating, can accurately control heating-up temperature, energy conversion rate up to 95% and environment-friendly, no
The advantages that phenomena such as heating surface produces fouling, is charred, the gel-like high particularly suitable for protein, amino acid content, liquid be present
The heating of the food such as body, sticky body.It is noiseless, pollution-free during whole system operation simultaneously.Due to egg liquid, milk, soya-bean milk
Containing a large amount of electrolyte such as abundant protein, amino acid, mineral ion, electric conductivity is excellent, is adapted to Ohmic heating, therefore make
Ohmic heating must be applied to make protein gel based food to be possibly realized.Therefore a kind of low cost is developed, simple to operate, function is neat
Entirely, can make the Ohmic heating coagulation system of multiple protein gel based food has wide market prospects and meaning.
The content of the invention
In order to reduce the manufacture difficulty of the protein gel based foods such as bean curd, egg custard, egg-milk cloth Yoghourt, albumen is improved
The producing efficiency and quality of gel based food, fill up the sky that in the market family expenses protein gel based food independently makes processing unit (plant)
In vain, the present invention provides a kind of protein gel based food heating coagulation system based on Ohmic heating, passes through the rate of heat addition, heating temperature
Degree, the accurate control of soaking time, realize one-touch convenient making multiple protein gel based food：Inner ester bean curd, egg-milk
Pudding, egg custard, Yoghourt etc., and the sterilization heat treatment of the food liquid such as milk, soya-bean milk, fruit juice.
The present invention is realized by following scheme：A kind of protein gel based food heating solidification dress based on Ohmic heating
Put, the device includes control panel (1), cover (2), fuselage (3), base (4), power switch (5), three-hole power socket
(6)；Control panel (1) is made up of LED light (101), function button (102), LCD1602 LCDs (103), control
Panel (1) processed is pasted onto on upper-cover (201) by gum 3M468, and its control terminal passes through wire and control board (203)
The corresponding interface connection；Cover (2) is by upper-cover (201), lower cover (202), control board (203), upper coupler
(204), DS18B20 temperature sensors watertight transducer (205) is formed, and upper-cover (201) is connected by screw and lower cover (202)
Connect, control board (203) and upper coupler (204) are fixed by screws on lower cover (202) respectively, DS18B20 temperature
Sensor water-proof probe (205) is connected by nut to be stretched out in the middle part of lower cover (202), when device covers tightly cover (2) work,
The detection collection of food temperature in heating inner liner is realized, its output end passes through wire and the corresponding interface of control board (203)
Connection；Fuselage (3) by fuselage cover (301), heating inner liner (302), battery lead plate (303), stainless steel spring piece (304), lower coupling
Clutch (305) forms, two battery lead plates (303) be bolted it is parallel be relatively fixed at heating inner liner (302) both ends, with machine
The stainless steel spring piece (304) at body shell (301) both ends is in close contact, and two stainless steel spring pieces (304) are bolted
At fuselage cover (301) both ends, its bolt external part connects civil power 220V power cathodes and lower coupler by wire respectively
(305) electrode ports, by the combination of upper and lower coupler (204,305), realize and solid-state relay in control board (203)
The connection of device (701) output port；The outer end of three-hole power socket (6) can be connected with attaching plug, inner to pass through wire and electricity
Source switch (5) is connected, and by the combination of upper coupler (204) and lower coupler (303), the electricity with control board (203)
Source input connection；Base (4) is connected by screw with fuselage cover.The present apparatus is used based on Ohmic heating (electrified regulation)
PWM zero-crossing power adjustment control modes, gathered by the real-time detection to data messages such as operating voltage, electric current and food temperature values,
By correlation computations, the pwm signal that certain dutycycle is exported by single-chip microcomputer controls solid-state relay cycle break-make, defeated so as to adjust
Go out power, accurate constant, the guarantor of setting temperature in process of setting for controlling the rate of heat addition in protein gel based food heating process
Hold.User can manually set the rate of heat addition, setting temperature and setting time or operating in a key real by function button (102)
The heating solidification of existing multiple protein gel based food makes and food liquid sterilization heat treatment.
It is an advantage of the invention that：
In order to meet the needs of people are to family expenses protein gel based food producing device, bean curd, egg custard, egg ox are reduced
The manufacture difficulty of the protein gel based food such as milk pudding, Yoghourt, the producing efficiency and quality of protein gel based food are improved, is filled up
In the market protein gel based food independently makes the blank of processing unit (plant), and the present invention provides a kind of albumen based on Ohmic heating and coagulated
Glue based food heats coagulation system, and its is multiple functional, simple to operate, small and beautiful, and homogeneous heating, temperature fluctuation is small, and electric energy turns
Efficiency high is changed, cost is relatively low, and securely and reliably.
Brief description of the drawings
The protein gel based food that Fig. 1 is the present invention heats coagulation system surface structure schematic diagram
Fig. 2 is the control panel schematic diagram of the present invention
Fig. 3 is the upper-cover schematic diagram of the present invention
Fig. 4 is the lower cover schematic diagram of the present invention
Fig. 5 is the fuselage schematic diagram of the present invention
Fig. 6 is the base schematic diagram of the present invention
Fig. 7 is the control board schematic diagram of the present invention
Fig. 8 is the solid-state relay internal circuit schematic diagram of the present invention
Embodiment
Refering to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of protein gel based food based on Ohmic heating of the invention
Heat coagulation system, including control panel (1) [LED light (101), function button (102), LCD1602 LCDs
(103)], cover (2) [upper-cover (201), lower cover (202), control board (203), upper coupler (204), DS18B20
Temperature sensor watertight transducer (205)], fuselage (3) [fuselage cover (301), heating inner liner (302), battery lead plate (303), no
Become rusty steel bomb reed (304), lower coupler (305)], base (4), power switch (5), three-hole power socket (6).Plant bulk
For 240*215*280mm3(the long wide * of * are high), heating inner liner (302) size are 160*160*130mm3(the long wide * of * are high), make and hold
Measure as 2L；Peak power output is 1700W；Crust of the device is ABS resin material, is molded by 3D printing；Heating inner liner (302)
For food-grade fiberglass reinforced type PP sheet material matter, have safe and non-toxic, high temperature resistant, high mechanical strength, excellent chemical stability and
Electrical insulating property, it is light the features such as；Battery lead plate (303) is 316 food-grade stainless steel materials；Control panel (1) is frosted PC materials,
DS18B20 temperature sensors watertight transducer (205) is the encapsulation of 316 stainless steels, and pop one's head in long 100cm, has waterproof, antirust, triple
The features such as insulation.
Specific work process：
Cover is opened, a certain amount of food liquid (milk, egg liquid or soya-bean milk) is slowly poured into heating inner liner (302)
In, cover is covered tightly, coupler (204) and lower coupler (305) is combined closely；Attaching plug is inserted into three-hole power socket
(6) electrically connect, turn on the power switch (5) with 220V cities, LCD1602 LCDs (103) shows current setting interface, presses
Lower setting button, the rate of heat addition, setting temperature, setting time can be manually set by adding, subtracting button；Or directly press corresponding food
The button (bean curd, pudding, Yoghourt, soya-bean milk) of product, system set optimal making parameter automatically；Pressed after being provided with startup/
Stop key, now, heating LED light is bright (red), and instruction device enters heating work state；After reaching setting temperature,
Heating LED light is gone out, and insulation LED light is bright (green), and instruction device enters isothermal solidifying working condition；During isothermal solidifying
Between reach after, insulation LED light is gone out, and it is bright to terminate LED light (yellow), while device sounding alarm, prompts end-of-job.
In whole manufacturing process, the current rate of heat addition of LCD1602 LCDs (103) real-time display, setting temperature and residue are solidifying
Gu the information such as time.User can also be turned USB data line by RS232 and be connected with the serial communication female seat in control board (203)
Connect, real-time acquisition device operational data information, for experimental analysis.
Refering to Fig. 7, control board of the invention (203) is the master control borad of the present apparatus, and control board (203) is double
Face pcb board, size are 175*106*1.6mm3 (the long wide * of * are thick)；Mainly include solid-state relay G3NB-240B-1 (701), string
Port communications circuit (702), LCD1602 liquid crystal display circuits (703), function button circuit (704), LED indicating circuit (705),
Singlechip minimum system circuit (706), buzzer sounding alarm circuit (707), DHT11 Temperature and Humidities circuit (708),
DS18B20 temperature sensing circuits (709), DC+5V switch power modules (710), voltage collection circuit (711), current acquisition electricity
Road (712)；Serial communication circuit (702) mainly includes RS232 female seats, electrical level transferring chip MAX232 and peripheral circuit, and it is sent out
Give, receiving port connects the corresponding serial ports pin of single-chip microcomputer respectively, USB data line is turned by RS232 and is connected with host computer, realize
The transmitted in both directions of data message；LCD1602 liquid crystal display circuits (703) are mainly by LCD1602 LCDs (103) and outer
Circuit composition is enclosed, I/O pin corresponding to single-chip microcomputer connects respectively for its data terminal and control terminal, data in realization device running
The real-time display of information (rate of heat addition, setting temperature, time, humidity, voltage, electric current, power etc.)；Function button circuit
(704) mainly it is made up of 8 function buttons (102), altogether, the other end is corresponding with single-chip microcomputer for one end of function button (102)
I/O pin connects；User carries out man-machine interaction by function button (102), and device work start and stop, parameter setting, display can be achieved
The one-touch making function of changing interface and multiple protein gel based food；LED indicating circuit (705) is by three different colours
LED light (101) series limiting resistor composition respectively, three paths of LEDs indicating circuits (705) one termination DC+5V, the other end point
Not Lian Jie the corresponding I/O pins of single-chip microcomputer, enter the different operating stage in device, by single-chip microcomputer control output low level, lead respectively
Logical three paths of LEDs indicator lamps (705), send different colours light, indicate different working condition (heating, insulation, done state)；
Singlechip minimum system circuit (706) is made up of STC12C5A60S2 single-chip microcomputers, reset circuit, crystal oscillating circuit, is realized to device
The control of system；Buzzer sounding alarm circuit (707) mainly includes source buzzer, and active buzzer one end connects DC+5V,
Other end I/O pins connection corresponding to single-chip microcomputer, by MCU driving active buzzer, controls its open and close, sends difference
Prompting alarm sound (start-up prompting sound, fault prompt tone, end-of-job prompt tone and button operation prompting during operation
Sound)；DHT11 Temperature and Humidities circuit (708) is made up of DHT11 Temperature Humidity Sensors and peripheral circuit, and its data output end connects
The corresponding I/O pin of single-chip microcomputer is connect, realizes the monitoring to device cover (2) inner control circuit plate (203) operating ambient temperature, humidity；
DS18B20 temperature sensing circuits (709) are made up of DS18B20 temperature sensors watertight transducer (205) and peripheral circuit, its data
The corresponding I/O pins of output end connection single-chip microcomputer, DS18B20 temperature sensors watertight transducer (205) are installed by screw thread and under
Cover (202) stretches out, the food temperature in the heating inner liner of detection collection in real time；DC+5V switch power modules (710) use
TL431 three-terminal voltage-stabilizing a reference sources are accurately controlled, and civil power AC220V is switched into DC+5V, and DC+5V is provided for control board (203)
Working power；Its AC input end connects 220V positive sources port and the 220V power supplys of upper coupler (204) by wire respectively
Negative pole port, DC output ends connect DC+5V and publicly GND respectively；Voltage collection circuit (711) by 1: 1 voltage transformer and
Corresponding sample circuit composition, its input is by conductor in parallel in upper coupler (204) electrode ports and 220V positive sources
Port, its output end are connected with Chip Microcomputer A/D C0I/O pins, are data signal by the analog voltage signal AD conversion of collection, real
The real-time detection of existing heating inner liner (302) both ends output voltage and data feedback；Current collection circuit (712) is by rated current
Than being formed for 10A/10mA current transformers L1 and peripheral circuit, by wired in series in main circuit, it is exported its input
End is connected with Chip Microcomputer A/D C1I/O pins, is data signal by the current signal AD conversion of collection, is realized heating inner liner (302)
The real-time detection of interior electric current and data feedback.
Refering to Fig. 8, solid-state relay G3NB-240B-1 (701) of the invention it is internal mainly by BT138-600 is two-way can
Control silicon Q1, MOC3063 zero passage optocoupler scr triggering device U2 and corresponding auxiliary circuit composition, BT138-600 bidirectional triode thyristors Q1
Input A1, output terminals A 2 connect 220V positive sources port and the electrode tip of upper coupler (204) respectively by wire
Mouthful, in the case where upper and lower coupler (204,305) is combined closely, realize the conducting with civil power 220V positive sources and battery lead plate (303)；
Electric capacity C1 and resistance R1 composition RC resistance capaciting absorpting circuits are connected in parallel on bidirectional triode thyristor Q1 both ends, absorb reverse spike voltage, realize
The overvoltage protection of bidirectional triode thyristor.By infrarede emitting diode LED, zero passage detection inside zero passage optocoupler scr triggering device U1
Light-operated bidirectional triode thyristor composition, there is DC low-voltage control ac high voltage, electrical isolation effect.Its pin of input 1 connects directly
Voltage+5V is flowed, the pin of input 2 connects the corresponding I/O pins of single-chip microcomputer, by single-chip microcomputer output pwm signal, controls infrarede emitting diode
LED conductings are luminous；Its pin of output end 6 is connected by triggering current-limiting resistance R2 with bidirectional triode thyristor Q1 input A1, output end 4
Pin is extremely connected with BT138-600 bidirectional triode thyristors Q1 G, and the phase of output terminals A 2 for passing through gate electrode resistance R5 and bidirectional triode thyristor Q1
Connect；Gate electrode resistance R5 prevents false triggering, improves antijamming capability.When light emitting diode in zero passage optocoupler scr triggering device U1
LED conductings are luminous, at the same during civil power 220V AC voltage zero crossing, the light-operated bidirectional triode thyristor triggering and conducting of zero passage detection, simultaneously
The pin of output end 4 produces trigger signal, further triggers bidirectional triode thyristor Q1 conductings, connects AC load, exports continuous exchange
Voltage.I.e. by controlling the dutycycle of PWM input signals to adjust the cycle number of output voltage, so as to change power output, essence
Really the control rate of heat addition and temperature.
Claims (2)
1. a kind of protein gel based food heating coagulation system based on Ohmic heating, the device include control panel (1), cover
(2), fuselage (3), base (4), power switch (5), three-hole power socket (6)；Control panel (1) by LED light (101),
Function button (102), LCD1602 LCDs (103) composition, control panel (1) are pasted onto upper-cover by gum 3M468
(201) on, its control terminal is connected by wire with the corresponding interface of control board (203)；Cover (2) by upper-cover (201),
Lower cover (202), control board (203), upper coupler (204), DS18B20 temperature sensors watertight transducer (205) composition,
Upper-cover (201) is connected by screw with lower cover (202), and control board (203) and upper coupler (204) pass through spiral shell respectively
Nail is fixed on lower cover (202), and DS18B20 temperature sensors watertight transducer (205) is connected from lower cover (202) by nut
Middle part is stretched out, and when device covers tightly cover (2) work, realizes the detection collection of food temperature in heating inner liner, its output end is led to
The corresponding interface that wire is crossed with control board (203) is connected；Fuselage (3) by fuselage cover (301), heating inner liner (302),
Battery lead plate (303), stainless steel spring piece (304), lower coupler (305) composition, two battery lead plates (303) are bolted flat
Row is relatively fixed at heating inner liner (302) both ends, is in close contact with the stainless steel spring piece (304) at fuselage cover (301) both ends,
Two stainless steel spring pieces (304) are bolted on fuselage cover (301) both ends, and its bolt external part is distinguished by wire
The electrode ports of civil power 220V power cathodes and lower coupler (305) are connected, by the combination of upper and lower coupler (204,305),
Realize the connection with solid-state relay (701) output port in control board (203)；The outer end of three-hole power socket (6) can
It is connected with attaching plug, the inner is connected by wire with power switch (5), and passes through upper coupler (204) and lower coupler
(303) combination, it is connected with the power input of control board (203)；Base (4) is connected by screw with fuselage cover.
The device is based on Ohmic heating, using PWM zero-crossing power adjustment control modes, by operating voltage, electric current and food temperature value etc.
The real-time detection collection of data message, by correlation computations, by single-chip microcomputer export certain dutycycle pwm signal control solid-state after
Electrical equipment (701) cycle break-make is accurate to control the rate of heat addition in protein gel based food heating process so as to adjust power output
It is constant, the holding of setting temperature in process of setting.User can manually set the rate of heat addition, solidification temperature by function button (102)
Degree and setting time or operating in a key realize that the heating solidification of multiple protein gel based food makes and food liquid sterilizes heat
Processing.Plant bulk is 240*215*280mm3(the long wide * of * are high), heating inner liner (302) size are 160*160*130mm3(long *
Wide * is high), making capacity be 2L；Peak power output is 1700W；Crust of the device is ABS resin material, is molded by 3D printing；
Heating inner liner (302) is food-grade fiberglass reinforced type PP sheet material matter；Battery lead plate (303) is 316L food-grade stainless steel materials, control
Panel (1) processed is frosted PC materials, and DS18B20 temperature sensors watertight transducer (205) encapsulates for 316L stainless steels.
2. a kind of protein gel based food heating coagulation system based on Ohmic heating according to claim 1, its feature
It is：Control board (203) is double-sided PCB board, size 175*106*1.6mm3(the long wide * of * are thick)；Mainly include solid-state relay
Device G3NB-240B-1 (701), serial communication circuit (702), LCD1602 liquid crystal display circuits (703), function button circuit
(704), LED indicating circuit (705), singlechip minimum system circuit (706), buzzer sounding alarm circuit (707), DHT11
Temperature and Humidity circuit (708), DS18B20 temperature sensing circuits (709), DC+5V switch power modules (710), voltage acquisition
Circuit (711), current collection circuit (712)；Serial communication circuit (702) mainly includes RS232 female seats, electrical level transferring chip
MAX232 and peripheral circuit, it sends, receiving port connects the corresponding serial ports pin of single-chip microcomputer respectively, turns usb data by RS232
Line is connected with host computer, realizes the transmitted in both directions of data message；LCD1602 liquid crystal display circuits (703) are mainly by LCD1602 liquid
The I/O pin connection corresponding to single-chip microcomputer respectively of crystal display screen (103) and peripheral circuit composition, its data terminal and control terminal, realizes dress
Put the real-time display of data message in running (rate of heat addition, setting temperature, time, humidity, voltage, electric current, power etc.)；
Function button circuit (704) is mainly made up of 8 function buttons (102), one end of function button (102) altogether, the other end with
The corresponding I/O pin connection of single-chip microcomputer；User by function button (102) carry out man-machine interaction, can be achieved device work start and stop,
The one-touch making function of parameter setting, display interface switching and multiple protein gel based food；LED indicating circuit (705)
By the LED light (101) of three different colours, series limiting resistor forms respectively, three paths of LEDs indicating circuits (705) one termination
DC+5V, the other end connect the corresponding I/O pins of single-chip microcomputer respectively, enter the different operating stage in device, are controlled and exported by single-chip microcomputer
Low level, three paths of LEDs indicator lamps (705) are respectively turned on, send different colours light, indicate that different working conditions (heating, is protected
Temperature, done state)；Singlechip minimum system circuit (706) is by STC12C5A60S2 single-chip microcomputers, reset circuit, crystal oscillating circuit group
Into realizing the control to apparatus system；Buzzer sounding alarm circuit (707) mainly includes source buzzer, active buzzer
One end connects DC+5V, other end I/O pins connection corresponding to single-chip microcomputer, by MCU driving active buzzer, controls its unlatching
Close, prompting alarm sound when sending different operating (start-up prompting sound, fault prompt tone, end-of-job prompt tone and
Button operation prompt tone)；DHT11 Temperature and Humidities circuit (708) is made up of DHT11 Temperature Humidity Sensors and peripheral circuit, its
The corresponding I/O pin of data output end connection single-chip microcomputer, is realized to device cover (2) inner control circuit plate (203) working environment temperature
Degree, the monitoring of humidity；DS18B20 temperature sensing circuits (709) are by DS18B20 temperature sensors watertight transducer (205) and periphery
Circuit forms, and the corresponding I/O pins of its data output end connection single-chip microcomputer, DS18B20 temperature sensors watertight transducer (205) passes through
Screw thread is installed and stretched out from lower cover (202), the food temperature in the heating inner liner of detection collection in real time；DC+5V Switching Power Supply moulds
Block (710) is accurately controlled using TL431 three-terminal voltage-stabilizing a reference sources, and civil power AC220V is switched into DC+5V, is control board
(203) DC+5V working powers are provided；Its AC input end connects the 220V positive sources of upper coupler (204) by wire respectively
Port and 220V power cathodes port, DC output ends connect DC+5V and publicly GND respectively；Voltage collection circuit (711) is by 1:
1 voltage transformer and corresponding sample circuit composition, its input by conductor in parallel in upper coupler (204) electrode ports and
220V positive sources port, its output end are connected with Chip Microcomputer A/D COI/O pins, are by the analog voltage signal AD conversion of collection
Data signal, realize real-time detection and the data feedback of heating inner liner (302) both ends output voltage；Current collection circuit (712)
It is that 10A/10mA current transformers L1 and peripheral circuit form by rated current ratio, its input is by wired in series in main circuit
In, its output end is connected with Chip Microcomputer A/D C1I/O pins, is data signal by the current signal AD conversion of collection, realizes heating
The real-time detection of inner bag (302) interior electric current and data feedback.
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| CN201710223414.4A CN107402588A (en) | 2017-03-31 | 2017-03-31 | A kind of protein gel based food heating coagulation system based on Ohmic heating |
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| CN201710223414.4A CN107402588A (en) | 2017-03-31 | 2017-03-31 | A kind of protein gel based food heating coagulation system based on Ohmic heating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113133483A (en) * | 2020-01-20 | 2021-07-20 | 内蒙古蒙牛乳业（集团）股份有限公司 | Method for producing yoghourt by ohmic sterilization process |
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| EP0113940A1 (en) * | 1982-05-07 | 1984-07-25 | P.A. Consulting Services Limited | A method of producing a water-insoluble milk based foam material, and material produced by the method |
| CN103152845A (en) * | 2013-01-30 | 2013-06-12 | 中国农业大学 | Automatic temperature control energy-saving ohmic heating device for food material processing |
| CN105494681A (en) * | 2015-12-16 | 2016-04-20 | 西北农林科技大学 | Domestic ohmic heating bean curd making machine with controllable heating speed and heat preservation |
| CN205485663U (en) * | 2015-12-28 | 2016-08-17 | 西北农林科技大学 | Protein gel class food adds hot set control system based on ohmic heating |
| CN207082029U (en) * | 2017-03-31 | 2018-03-09 | 西北农林科技大学 | A kind of protein gel based food heating coagulation system based on Ohmic heating |
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2017
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| EP0113940A1 (en) * | 1982-05-07 | 1984-07-25 | P.A. Consulting Services Limited | A method of producing a water-insoluble milk based foam material, and material produced by the method |
| CN103152845A (en) * | 2013-01-30 | 2013-06-12 | 中国农业大学 | Automatic temperature control energy-saving ohmic heating device for food material processing |
| CN105494681A (en) * | 2015-12-16 | 2016-04-20 | 西北农林科技大学 | Domestic ohmic heating bean curd making machine with controllable heating speed and heat preservation |
| CN205485663U (en) * | 2015-12-28 | 2016-08-17 | 西北农林科技大学 | Protein gel class food adds hot set control system based on ohmic heating |
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| CN113133483A (en) * | 2020-01-20 | 2021-07-20 | 内蒙古蒙牛乳业（集团）股份有限公司 | Method for producing yoghourt by ohmic sterilization process |
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