CN106510491A - Frying and roasting method and control device of food processor for frying and roasting foods by hot air - Google Patents
Frying and roasting method and control device of food processor for frying and roasting foods by hot air Download PDFInfo
- Publication number
- CN106510491A CN106510491A CN201610828065.4A CN201610828065A CN106510491A CN 106510491 A CN106510491 A CN 106510491A CN 201610828065 A CN201610828065 A CN 201610828065A CN 106510491 A CN106510491 A CN 106510491A
- Authority
- CN
- China
- Prior art keywords
- fan
- temperature
- control
- control unit
- rotating speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
- A47J37/0641—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements with forced air circulation, e.g. air fryers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/12—Deep fat fryers, e.g. for frying fish or chips
- A47J37/1257—Deep fat fryers, e.g. for frying fish or chips electrically heated
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/12—Deep fat fryers, e.g. for frying fish or chips
- A47J37/1276—Constructional details
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention relates to the field of kitchen appliances, in particular to a frying and roasting method and a control device of a food processor for frying and roasting foods by hot air. The frying and roasting method and the control device have the advantages that a fan can run at corresponding rotating speeds according to selected tap positions and working states of a heating tube, and circulating speed of air in the food processor is regulated through the rotating speeds of the fan, so that cooking temperatures can be regulated; the foods in a cooking chamber are heated through circular hot air flow, more uniform heating is achieved, and different tap positions can be selected to enable the fan to run at different speeds according to different cooking foods, so that food cooking effects are improved; the hot air flow is mitigated to reduce impact of heat on components of the food processors, and accordingly safety and reliability are achieved.
Description
Technical field
A kind of the present invention relates to field of kitchen electric appliance, more particularly to grillING of the food processor of employing hot blast grillING food
Method and control device.
Background technology
There is a kind of food processor to include cooking cavity and heating tube at present, cooked in cooking cavity as thermal source by the use of heating tube
Food, and the food processor to the control for cooking cavity temperature be all by the break-make of control heating tube completing,
There is a problem that temperature control is forbidden.Above-mentioned food processor includes that air fryer, electric baker, oven and food oven etc. are used for
The electrical equipment of baking, is fried by the air heated to the food of cooking cavity by the hot air apparatus being arranged in housing now with a kind of
Pot, the hot air apparatus of air fryer include fan and heating element heater, but air fryer is to cooking the control of cavity temperature scope
Remain by controlling the break-make of heating tube to complete, such control mode, heating tube frequently on-off action causes to cook
Prepare food intracavity temperature fluctuation amplitude it is big, the temperature control to cooking intracavity is inaccurate, and the fan also in thermal is all with complete
The maximum speed operation of power, the high thermal losses for causing stream of hot air of rotation speed of the fan are big, and the moisture content of food can be caused
Scatter and disappear more, so as to affect the cooking quality and taste of food cooking.
The content of the invention
It is an object of the invention to provide a kind of grillING method of the food processor of employing hot blast grillING food and control
Device.
For reaching above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of grillING method of the food processor of employing hot blast grillING food, the food processor includes housing, located at shell
Internal cooking cavity, hot air apparatus, control unit and temperature sensor, the hot air apparatus include heating element heater and fan, wind
Fan guides the heat of heating element heater to the culinary art intracavity, and temperature sensor is used for detecting the cooking temp of culinary art intracavity, institute
Stating food processor includes guidance panel, and the guidance panel is provided with corresponding temperature gear Tn, the temperature gear Tn with
Preset temperature Tn correspondences in control unit, described control unit internal memory contain the corresponding relation of preset temperature and rotation speed of the fan
Table,
The preset rotation speed of the corresponding fans of preset temperature Tn is An, and the method for the grillING food of the food processor includes：
The temperature gear Tn of the food processor is set, starts food processor, the described heating element heater of control unit control
Begin to warm up, the fan is brought into operation with rotating speed An, until the temperature that temperature sensor detects culinary art intracavity reaches Tn+
Tc, according to the temperature signal for detecting, control heating tube stops heating to control element, and fan continues to run the t seconds with An rotating speeds, so
Control fan afterwards to run with rotating speed An-1, wherein A n-1<An.
Further, the scope of the Tc is 0 ° -20 °.
Further, the fan continues to run with time t for 10s-30s.
Further, when the temperature of the culinary art intracavity is less than Tn-Tc, control element control heating element heater after
Continuous heating, the fan are run with rotating speed An, until the temperature of culinary art intracavity reaches Tn+Tc again, such iterative cycles, until
Culinary art terminates, and cycle-index is N, N >=1.
Further, the guidance panel is provided with least 2 temperature gears.
Further, methods described also judges step including rotation speed of the fan, and when heating tube stops heating, fan is with rotating speed An
After the rotating speed operation t seconds, first judge whether rotating speed An is minimum speed, if An is minimum speed, run with rotating speed An all the time；
Otherwise fan control fan is run with rotating speed An-1.
A kind of control device of the food processor for carrying out food oven using above-mentioned grillING method, it is single including control
Unit, power circuit, the heat driven circuit for controlling the heating element heater work, the fan drive circuit of control fan operation, with
And the temperature sensing circuit of cavity temperature is cooked in detection, described control unit includes single-chip microcomputer, and temperature sensor is cooked detection
Prepare food intracavity Temperature Feedback to control unit, control unit controls according to temperature signal whether heating element heater works, at the same adjust
The voltage of the fan in fan drive circuit is saved so as to control the running speed of fan.
Further, the fan drive circuit includes controllable silicon, and the single-chip microcomputer determines correspondence according to the rotating speed of fan
Silicon controlled copped wave value, the single-chip microcomputer by chop control silicon controlled make-and-break time, so as to adjust the rotating speed of fan.
Further, the fan drive circuit also includes optic coupling element, and the outfan of the optic coupling element passes through resistance
Silicon controlled gate pole is connected to, described control unit controls silicon controlled conducting by optic coupling element.
Further, described control unit also includes zero cross detection circuit, is closed in zero point for controlling controllable silicon.
Further, the fan includes motor with cup rotor and flabellum.
The invention has the beneficial effects as follows：
1. the grillING method of the application matches the corresponding rotating speed fortune of fan according to the gear of selection and the working condition of heating tube
OK, and by rotation speed of the fan the circulation rate of air in food processor is adjusted, the purpose of the temperature for adjusting culinary art is reached,
Due to cook intracavity heat foods be circulation stream of hot air, heating is more uniform, and stream of hot air more relaxes, and subtracts
Lack impact of the heat to food processor device, and simplify control program, it is relatively reliable.This control method correspondence mechanism
For high-temperature heating when using fan high rotating speed, during low-temperature heat using fan the slow-speed of revolution, for example, select gear temperature be
200 °, then corresponding rotation speed of the fan An is 3000 turns/min；Gear temperature is selected to be 150 °, then corresponding rotation speed of the fan An is
2000 turns/min, so in high-temperature heating state, the fan of high rotating speed operation provides more high wind speed will faster generate heat
Tubular heat is diffused into culinary art intracavity, the temperature of quick heating and balanced culinary art intracavity；In low-temperature heat state, so arrange and keep away
Exempt from easily to be lost in too many heat, the thermal losses for sucking cool ambient air and being likely to result in and temperature detection because crossing high wind speed
Fluctuating margin is big and inaccurate phenomenon occurs.When heating tube works, fan is rotated using corresponding temperature rotating speed An, works as heating
When pipe quits work, fan is changed into the rotating speed An-1 rotary speed working lower than An, An speed operations again with rotating speed An work a period of times
The big heat of heating tube can be diffused rapidly to cooking cavity by fan, the local temperature for preventing the unexpected heat of heating tube from gathering and causing
It is too high, so as to avoid the harmful effect to heating tube service life and all sidepiece part scorifications etc., An-1 rotating speeds from reducing heat
Scatter and disappear, it is more energy efficient, also avoid corresponding food moisture from too scattering and disappearing, improve the cooking quality of food.Further, according to cooking food
Difference can select the rotation speed of the fan of different gears to run so that cooking quality is improved, and improves food mouthfeel, Er Qie
When low temperature is cooked, fan low cruise, actual temperature rise decline, more safe and reliable.
2. the scope of Tc described in is 0 ° -20 °, if Tc is arranged, temperature is excessive, and temperature overshot can cause to decoct than more serious
Roasting temperature is not accurate enough, affects the taste of grillING food.Even in the gear for selecting temperature high, the life-span of product is affected.
3. it is 10s-30s that fan described in continues to run with time t, and when t is arranged, the time is too short, then the heat in possible heating tube
Amount is not fully taken away, and still can produce impact to the life-span of product, if arranging overlong time, may cause the temperature of cavity
Degree decline temperature is excessive.
4., when the temperature of the culinary art intracavity is less than Tn-Tc, the control element control heating element heater continues heating,
The fan is run with rotating speed An, until the temperature of culinary art intracavity reaches Tn+Tc again, such iterative cycles, until culinary art knot
Beam.Cycle-index is N, N >=1.When heating tube is worked again, fan recovers An rotating speeds immediately, then can effectively prevent heating
When pipe is heated, heat accumulation, prevents the heat for gathering from causing temperature too high, affects culinary art effect and life of product.
5. guidance panel described in is provided with least 2 temperature gears.By the adjustment of different gears, so that product
It is suitable to cook different foods.
6. step is judged by arranging rotation speed of the fan, can prevent the too low fan work exception for causing of rotation speed of the fan, prevent
Only fan is operated outside working range, affects service life.
7. a kind of control device of the food processor for carrying out food oven using above-mentioned grillING method, control unit
Control whether heating element heater works according to the temperature of culinary art intracavity, while the rotating speed of fan, by the structure, can both realize
Temperature when heating tube does not work in cooking cavity body slowly declines, and has also ensured the normal intensification of culinary art intracavity, has effectively improved
The thermal efficiency.
8. fan drive circuit also includes optic coupling element, and the outfan of the optic coupling element is connected to controllable silicon by resistance
Gate pole, described control unit by optic coupling element control silicon controlled conducting, by optic coupling element, control can be effectively isolated
Unit and controllable silicon, ensure the safety of control unit.
9. described control unit also includes zero cross detection circuit, is closed in zero point for controlling controllable silicon.Due to can
Control silicon is closed in zero point, therefore, effectively prevent controllable silicon from electric arc occurring, effectively extend the silicon controlled life-span.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described.
Structural representations of the Fig. 1 for one electric oven of the embodiment of the present invention；
Schematic diagrams of the Fig. 2 for one electric oven control module of the embodiment of the present invention；
Fig. 3 is one fan drive circuit figure of the embodiment of the present invention；
Fig. 4 is one zero cross detection circuit figure of the embodiment of the present invention；
Fig. 5 is one electric oven control flow chart of the embodiment of the present invention；
Fig. 6 is one voltage chopping control flow chart of the embodiment of the present invention；
Fig. 7 is one voltage chopping curve synoptic diagram of the embodiment of the present invention；
Fig. 8 is two electric oven control flow chart of the embodiment of the present invention；
Fig. 9 is embodiment of the present invention three fan drive circuit figure.
Reference：1- upper shells, 11- cover plates, 12- containing cavities, 2- lower houses, 3- are complained and quarrel loudly, 31- handles, 32- fry baskets,
33- pots, 41- heating tubes, 42- flabellums, 43- motors, 5- single-chip microcomputers, 6- temperature sensors, 7- air outlets.
Specific embodiment
Embodiment one.
Such as Fig. 1, the present embodiment provides a kind of Household electric oven, including the fryer of upper shell 1, lower house 2 and cooking food
7, fryer is provided with the lower house 2, fryer 3 releasably can be arranged in the cavity, is provided with cover plate 11, institute in upper shell 1
The upper surface and 1 inwall of upper shell for stating cover plate 11 forms containing cavity 12, the lower surface of the cover plate 11 and 3 formation culinary arts of complaining and quarrel loudly
Chamber, is provided with hot air apparatus, control device, air channel, temperature sensor 6 in the upper shell 1, and the hot air apparatus include heating tube
41 and fan, the fan includes motor with cup rotor 43 and flabellum 42, and the motor with cup rotor 43 drives flabellum 42 to rotate, the control
Device and motor are arranged in the containing cavity 12, and the control device includes the outer surface guidance panel for being arranged on upper shell,
User carries out corresponding grillING work by guidance panel option program to control electric oven.The heating tube 41,42 and of flabellum
Temperature sensor 6 is arranged on the lower section of cover plate 11, and the flabellum 42 is arranged on the top of heating tube 41, and the heating tube 41
For snail heating tube, the temperature sensor 6 is arranged near heating tube 41, and the temperature sensor 6 is used for detecting culinary art
The cooking temp of intracavity.
The fryer 3 includes handle 31, pot 33 and the fry basket 32 being vacantly placed in pot 33, and fry basket 32 is used for placing
By fried food, on 32 wall of fry basket, air vent is usually provided with, when flabellum 42 is rotated, when flabellum 42 drives stream of hot air to circulate,
Stream of hot air passes through the through hole, stream of hot air is evenly contacted with food.During user's use, handle can be passed through
Fryer moving body easily from the cavity 3 of lower house 2 is taken out or is put in cavity 3 by 31.
When needing to cook food, first food is placed in fry basket 72, then the fryer with fry basket is put
Enter in cavity 3, to complain and quarrel loudly and cooking cavity 31 is formed with cavity 3, start electric oven work, control device control heating tube heating and motor
Rotate, motor drives flabellum 42 to rotate, and air stream is blown out by flabellum 42 from flabellum sidepiece, and air stream is through heating tube 41 and carries
The heat which produces forms stream of hot air, and the stream of hot air guides the cooking cavity 31 into along duct flows, then along
The side wall of cooking cavity is moved downward, and stream of hot air enters cooking cavity and heats food, and it is backward that stream of hot air flow to cavity bottom
On turn back, and the air below the flabellum intermediate formation air negative pressure area, flabellum is then attracted and flows upward the air and bear
Nip, stream of hot air continue up flowing and again return at flabellum so that stream of hot air forms circulation in culinary art intracavity, so as to
More fully using the heat of stream of hot air, more energy-conservation.
The sidepiece of the upper shell 1 is provided with air outlet 7, and the cooking cavity 31 is connected with ambient atmosphere by air outlet 7.When
The air circulation flow of cooking cavity when flabellum 42 is rotated, is driven, is uniformly heated to cooking intracavity food, it is empty in cooking cavity 31
When gas expanded by heating pressure increases, cooking the unnecessary stream of hot air of intracavity can be flowed out by air outlet 7, active balance cooking cavity 31
Interior pressure, and more conducively accuracy controlling cooks the temperature of intracavity.
Such as Fig. 2, in the present embodiment, the control device includes control unit, power circuit, controls the heating element heater work
The heat driven circuit of work, the fan drive circuit of control fan operation, and the temperature detection electricity of detection culinary art cavity temperature
Road.Described control unit includes single-chip microcomputer 5 and guidance panel, temperature sensor 6 by the Temperature Feedback of the culinary art intracavity for detecting extremely
Control unit, control unit control according to temperature signal whether heating element heater works, while adjusting in fan drive circuit
So as to control the running speed of fan, guidance panel is the input signal of receive user and feedback process work to the voltage of fan
Situation, power circuit are that single-chip microcomputer and above-mentioned each circuit work provide the electric power support for driving, it is ensured that whole electric oven control system
The normal work of system.
Such as Fig. 5, electric oven are as follows by the particular content for adjusting the control principle cooked by rotation speed of the fan：Electric oven control
Element memory processed contains the mapping table of preset temperature Tn and rotation speed of the fan An, the control method of the grillING food of electric oven
For：
The temperature gear Tn of the food processor is set by guidance panel, starts food processor, control unit control institute
The heating element heater stated begins to warm up, and the fan is brought into operation with rotating speed An, until temperature sensor detects culinary art intracavity
Temperature reaches Tn+Tc, and according to the temperature signal for detecting, control heating tube stops heating to control element, and fan continues to turn with An
Speed operation t seconds, wherein t are 10-30s, then control fan and are run with rotating speed An-1, wherein A n-1<An.
When the temperature of the culinary art intracavity is less than Tn-Tc, the control element control heating element heater continues heating, and
Control fan is run with rotating speed An, until the temperature of culinary art intracavity reaches Tn+Tc again, such iterative cycles, until culinary art knot
Beam.Cycle-index is N, N >=1.When heating tube is worked again, fan recovers An rotating speeds immediately, then can effectively prevent heating
When pipe is heated, heat accumulation, prevents the heat for gathering from causing temperature too high, affects culinary art effect and life of product.The Tc values
For 10 °, according to cooking temp and the difference of time of different foods, the cycle-index of each cooking process is also different, for example：Grilled chicken
In wing program process, about 5 minutes heating-up times, the about 3 minutes time of each circulation in the constant temperature stage, the total time of whole culinary art
About 25 minutes.
This control method matches the corresponding rotating speed operation of fan according to the gear for selecting, and cooks intracavity by stream of hot air
Heat foods, heating are more uniform, and stream of hot air more relaxes, and reduces impact of the heat to electric oven device.This control
When method processed correspondence mechanism is high-temperature heating using fan high rotating speed, during low-temperature heat using fan the slow-speed of revolution, so exist
During high-temperature heating state, the fan of high rotating speed operation provides more high wind speed with faster by heat-generating pipe heat diffusion to cooking cavity
It is interior, the temperature of quick heating and balanced culinary art intracavity；In low-temperature heat state, so setting avoids easy because crossing high wind speed
The fluctuating margin for being lost in too many heat and temperature detection is big and inaccurate phenomenon occurs.
The scope of the Tc is 0 ° -20 °, and in the present embodiment, preferably Tc is 10 °.If it is excessive that Tc arranges temperature, temperature
Spending punching can cause the temperature of grillING not accurate enough than more serious, affect the taste of grillING food.Even selecting temperature high
During gear, the life-span of product is affected.
It is 10s-30s that the fan continues to run with time t, and in the present embodiment, preferably t is 20s, too short when the t setting times,
Then the heat in possible heating tube is not fully taken away, and still can produce impact to the life-span of product, if arranging overlong time,
Cooling at a temperature of cavity may be then caused to be spent many.
In the present embodiment, the guidance panel is provided with 3 temperature gears, by the adjustment of different gears, so that
Product is suitable to cook different foods.Single-chip microcomputer 5 internal memory corresponding with temperature gear contains preset temperature T and rotation speed of the fan A
Mapping table：Temperature gear：T1, T2, T3, and the rotation speed of the fan corresponding with temperature gear：A1, A2, A3, wherein, wind
Fan includes motor and flabellum, and flabellum is 3000rpm by the Motor drive, the motor maximum speed, is divided into 3 gears, its
Gear rotating speed is respectively：A1=1000 rev/min, A2=2000 rev/min, A3=3000 rev/min；Correspond
Preset temperature point be respectively：T1=120 DEG C, T2=160 DEG C, T3=200 DEG C.Food is selected by the guidance panel of electric oven
Required target temperature cooks gear accordingly, starts electric oven, the heating of Single-chip Controlling heating tube, and controlled motor is with target temperature
Corresponding rotation speed of the fan operation is spent, the heat that heating tube is produced by fan is guided the culinary art intracavity into along air channel and heated.
The fan drive circuit includes controllable silicon, and the single-chip microcomputer determines corresponding silicon controlled according to the rotating speed of fan
Copped wave value, the single-chip microcomputer pass through chop control silicon controlled make-and-break time, so as to adjust the rotating speed of fan, the fans drive
Circuit also includes optic coupling element, and the outfan of the optic coupling element is connected to silicon controlled gate pole, the control list by resistance
Unit controls silicon controlled conducting by optic coupling element.By optic coupling element, control unit and controllable silicon can be effectively isolated, be ensured
The safety of control unit.Such as Fig. 3, in the present embodiment, fan drive circuit includes controllable silicon TR2, optocoupler IC4, safety electric capacity CX3
And some peripheral resistance are constituted, wherein controllable silicon TR2 is used for chop control to reach the purpose for adjusting rotation speed of the fan, optocoupler IC4
For isolation drive controllable silicon, safety electric capacity CX3 is used for that anti-interference, controllable silicon to mislead when preventing electrical network impulse disturbances, other
Peripheral resistance be used for current limliting.Single-chip microcomputer 5 sends Continuity signal to the input of optic coupling element IC4, the output of optic coupling element IC4
Continuity signal is passed to the control gate pole of controllable silicon TR2, the TR2 conductings of triggering controllable silicon at end so that fan place circuit and fire
Line and zero line form conducting loop, so as to control fan work.In the circuit, it is copped wave that controllable silicon adjusts the mode of rotation speed of the fan
Control, i.e., by adjusting the silicon controlled angle of flow, selectively control silicon controlled is turned on and shut-off, to adjust average operation
The mode of voltage and average operating current realizes the adjustment effect to rotation speed of the fan.So arrange, the filtering net in foregoing circuit
Network can eliminate the harmonic wave interference produced when controllable silicon works, and make product meet the EMC Requirements of correlation；Utilizing simultaneously can
Control silicon wave chopping technology, realizes that the voltage of fan driving motor is adjustable, and then realizes that fan wind speed is adjustable, the driving electricity of such fan
Machine can directly adopt common electric machine, it is not necessary to custom-made gear motor, and design versatility is good, and integrated cost is low.
Such as Fig. 4, described control unit also include zero cross detection circuit, are closed in zero point for controlling controllable silicon.This
In embodiment, the zero cross detection circuit is used for coordinating the application of the controllable silicon wave chopping technology in fan drive circuit, the mistake
Zero detection circuit includes diode, optocoupler and some peripheral resistance, and wherein diode D8 is used for Half bridge rectifier, and diode D9 is used
In protection optocoupler, clamper optocoupler light terminal voltage, and forceful electric power signal is converted to weak electric signal, peripheral resistance for isolating by optocoupler
For current limliting.
Such as Fig. 6, Fig. 7, in the present embodiment, controllable silicon adjusts the control program of the rotating speed of the fan by chop control
For：
Control unit reads fan preset rotation speed An corresponding with target temperature Tn；
Corresponding copped wave value tn, i.e., one chopping cycle, and tn=0 ~ 20 millisecond are calculated according to rotation speed of the fan An；
Described control unit also includes timing module, and when the voltage over zero, the timing module starts timing；
When the timing time D of timing module is more than copped wave value tn, the controlled silicon conducting is controlled；Otherwise, continue to keep time delay
Timing；
After the controlled silicon conducting, timing module continue timing, as timing time D >=the 2T '-X of timing module, it is described can
Control silicon shut-off.
Wherein, the normal voltage is U, and the chopping voltage value of the chop control is Ua, and 0.8U≤Ua≤0.97
U.Electric oven is operated under normal voltage U of 220 V and the frequency condition of 50Hz, and the chopping voltage value of the chop control is
Ua, and 176V≤Ua≤213V.So arrange, the regulating effect of rotation speed of the fan is good, and fan operates steadily.Work as chop control
Chopping voltage Ua ＜ 176V when, after copped wave, fan fluctuation of service, it may occur that operation clamping stagnation phenomenon, work as chop control
Chopping voltage Ua ＞ 213V when, may produce the rotation speed of the fan after inverse peak voltage, and copped wave will not change again.
After the controlled silicon conducting, timing module continues timing, as timing time D >=the 2T '-X of timing module, institute
Controllable silicon shut-off is stated, wherein, the scope of T '=20ms, X is 100us-1ms.As controllable silicon has after the conducting that is triggered,
By constant conduction to the characteristic that can just end during alternating voltage zero-crossing, so arrange, controllable silicon can be turned off in advance, it is ensured that controllable
Silicon cut-off is reliable.
It should be understood that the preset temperature T can be selected according to actual needs, such as 80 DEG C, 100 DEG C, 120
℃、140℃、160℃、180℃、200℃、220℃.When preset temperature is too low, food mouthfeel is relatively poor, works as preset temperature
When too high, user may be scalded.
It should be understood that the rotating speed A of fan can be adjusted according to practical situation, such as 500 revs/min, 1000 revs/min
Clock, 1500 revs/min, 2000 revs/min, 2500 revs/min, 3000 revs/min.If the rotating speed of fan is too low, its wind-force
It is weaker, it is impossible to heat to be blowed to downwards cooking cavity completely, if the rotating speed of fan is too high, stream of hot air is blown outside cooking cavity
Excessively, heat scatters and disappears greatly, and the noise of fan is excessive, affects surrounding.
Embodiment two.
Such as Fig. 8, the control method of the grillING food that the present embodiment is provided with the difference of embodiment one is：Including fan
The judgement step of rotating speed：
Before rotation speed of the fan will be for An-1 by An, first judge whether rotating speed An is minimum speed, if rotation speed of the fan An is for most
The slow-speed of revolution, then run to culinary art with An rotating speeds all the time and terminated；If rotation speed of the fan An is not minimum speed, fan fan will be
An-1 rotating speeds run.By arranging the step, the too low fan work exception for causing of rotation speed of the fan can be prevented, prevents fan from existing
It is operated outside working range, affects service life.
Remaining architectural feature of electric oven described in the present embodiment is identical with embodiment one, and here is omitted.
Embodiment three.
The present embodiment is that the drive circuit of rotation speed of the fan control is different with the difference of embodiment one.
Controllable silicon and interlock circuit is not provided with the fan drive circuit of the present embodiment, but adopts relay parallel circuit
To control the rotating speed of fan.Such as Fig. 9, in the present embodiment, the fan drive circuit includes relay K and some resistance R structures
Into wherein, relay K1 is connected with resistance R1, and relay K2 is connected with resistance R2, and relay K3 is connected with resistance R3, Ran Houshang
State the series circuit of relay two ends be connected in parallel again after with fan place circuit connected in series, formed fans drive electricity
Road.Single-chip microcomputer sends Continuity signal to relay road, controls each relay and is turned on or off so that the change in voltage at fan two ends,
So as to control fan work.The present embodiment can equally realize the technique effect of the control to rotation speed of the fan.
Remaining architectural feature of electric oven described in the present embodiment is identical with embodiment one, and here is omitted.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in all are answered
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of grillING method of the food processor of employing hot blast grillING food, the food processor include housing, are located at
Cooking cavity, hot air apparatus, control unit and temperature sensor in housing, the hot air apparatus include heating element heater and fan,
Fan guides the heat of heating element heater to the culinary art intracavity, and temperature sensor is used for detecting the cooking temp of culinary art intracavity,
The food processor includes guidance panel, and the guidance panel is provided with corresponding temperature gear Tn, it is characterised in that described
Temperature gear Tn is corresponding with the preset temperature Tn in control unit, and described control unit internal memory contains preset temperature and rotation speed of the fan
Mapping table,
The preset rotation speed of the corresponding fans of preset temperature Tn is An, and the method for the grillING food of the food processor includes：
The temperature gear Tn of the food processor is set, starts food processor, the described heating element heater of control unit control
Begin to warm up, the fan is brought into operation with rotating speed An, until the temperature that temperature sensor detects culinary art intracavity reaches Tn+
Tc, according to the temperature signal for detecting, control heating tube stops heating to control element, and fan continues to run the t seconds with An rotating speeds, so
Control fan afterwards to run with rotating speed An-1, wherein A n-1<An.
2. grillING method according to claim 1, it is characterised in that the scope of the Tc is 0 ° -20 °.
3. grillING method according to claim 1, it is characterised in that the fan continues to run with time t for 10s-30s.
4. grillING method according to claim 1, it is characterised in that when the temperature of the culinary art intracavity is less than Tn-Tc
When, the control element control heating element heater continues heating, and the fan is run with rotating speed An, until the temperature of culinary art intracavity is again
It is secondary to reach Tn+Tc, such iterative cycles, until culinary art terminates, cycle-index is N, N >=1.
5. grillING method according to claim 1, it is characterised in that the guidance panel is provided with least 2 temperature shelves
Position.
6. grillING method according to claim 1, it is characterised in that methods described also judges step including rotation speed of the fan,
When heating tube stops heating, after fan is with the rotating speed An rotating speeds operation t seconds, first judge whether rotating speed An is minimum speed, if An
For minimum speed, then run with rotating speed An all the time；Otherwise fan control fan is run with rotating speed An-1.
7. a kind of grillING method in employing claim 1 to 6 described in any one carries out the food processor of food oven
Control device, including control unit, power circuit, the heat driven circuit for controlling the heating element heater work, control fan fortune
Capable fan drive circuit, and the temperature sensing circuit of detection culinary art cavity temperature, described control unit include single-chip microcomputer, its
It is characterised by, by the Temperature Feedback of the culinary art intracavity for detecting to control unit, control unit is according to temperature signal for temperature sensor
To control whether heating element heater works, while adjusting the voltage of the fan in fan drive circuit so as to the operation for controlling fan turns
Speed.
8. control device according to claim 7, it is characterised in that the fan drive circuit includes controllable silicon, described
Single-chip microcomputer determines corresponding silicon controlled copped wave value according to the rotating speed of fan, and the single-chip microcomputer is logical by chop control silicon controlled
The disconnected time, so that adjust the rotating speed of fan.
9. control device according to claim 8, it is characterised in that the fan drive circuit also includes optic coupling element,
The outfan of the optic coupling element is connected to silicon controlled gate pole by resistance, and described control unit can by optic coupling element control
The conducting of control silicon.
10. control device according to claim 8, it is characterised in that described control unit also includes zero cross detection circuit,
Closed in zero point for controlling controllable silicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828065.4A CN106510491B (en) | 2016-09-19 | 2016-09-19 | Using the grillING method and control device of the food processor of hot wind grillING food |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828065.4A CN106510491B (en) | 2016-09-19 | 2016-09-19 | Using the grillING method and control device of the food processor of hot wind grillING food |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106510491A true CN106510491A (en) | 2017-03-22 |
| CN106510491B CN106510491B (en) | 2019-07-12 |
Family
ID=58344041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610828065.4A Active CN106510491B (en) | 2016-09-19 | 2016-09-19 | Using the grillING method and control device of the food processor of hot wind grillING food |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106510491B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108514343A (en) * | 2018-06-20 | 2018-09-11 | 佛山市艾美皓电子科技有限公司 | Double protection temperature control circuits and air fryer |
| CN110831469A (en) * | 2017-05-31 | 2020-02-21 | 德隆奇电器单一股东有限责任公司 | Automatic device for cooking food |
| CN110960107A (en) * | 2018-09-28 | 2020-04-07 | 广东美的厨房电器制造有限公司 | Electric oven control system and method and electric oven |
| CN114305086A (en) * | 2022-01-05 | 2022-04-12 | 嵊州楚平锅业有限公司 | Pressure cooker with air frying pan function based on Internet of things |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101622501A (en) * | 2006-11-29 | 2010-01-06 | Lg电子株式会社 | Method of controlling oven |
| EP2287533A1 (en) * | 2009-08-04 | 2011-02-23 | Indesit Company, S.p.A. | Method for controlling the operation of an oven |
| CN102483236A (en) * | 2009-09-17 | 2012-05-30 | 松下电器产业株式会社 | Heating device |
| CN203424828U (en) * | 2013-07-19 | 2014-02-12 | 慈溪市宏邦电器有限公司 | Air frying pan for sufficiently and uniformly heating foods |
| CN203852242U (en) * | 2014-05-28 | 2014-10-01 | 广东新宝电器股份有限公司 | Electric oven |
| CN204985016U (en) * | 2015-09-14 | 2016-01-20 | 广东美的厨房电器制造有限公司 | Control circuit and microwave oven of microwave oven fan |
-
2016
- 2016-09-19 CN CN201610828065.4A patent/CN106510491B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101622501A (en) * | 2006-11-29 | 2010-01-06 | Lg电子株式会社 | Method of controlling oven |
| EP2287533A1 (en) * | 2009-08-04 | 2011-02-23 | Indesit Company, S.p.A. | Method for controlling the operation of an oven |
| CN102483236A (en) * | 2009-09-17 | 2012-05-30 | 松下电器产业株式会社 | Heating device |
| CN203424828U (en) * | 2013-07-19 | 2014-02-12 | 慈溪市宏邦电器有限公司 | Air frying pan for sufficiently and uniformly heating foods |
| CN203852242U (en) * | 2014-05-28 | 2014-10-01 | 广东新宝电器股份有限公司 | Electric oven |
| CN204985016U (en) * | 2015-09-14 | 2016-01-20 | 广东美的厨房电器制造有限公司 | Control circuit and microwave oven of microwave oven fan |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831469A (en) * | 2017-05-31 | 2020-02-21 | 德隆奇电器单一股东有限责任公司 | Automatic device for cooking food |
| CN110831469B (en) * | 2017-05-31 | 2022-05-03 | 德隆奇电器单一股东有限责任公司 | Automatic device for cooking food |
| CN108514343A (en) * | 2018-06-20 | 2018-09-11 | 佛山市艾美皓电子科技有限公司 | Double protection temperature control circuits and air fryer |
| CN110960107A (en) * | 2018-09-28 | 2020-04-07 | 广东美的厨房电器制造有限公司 | Electric oven control system and method and electric oven |
| CN114305086A (en) * | 2022-01-05 | 2022-04-12 | 嵊州楚平锅业有限公司 | Pressure cooker with air frying pan function based on Internet of things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106510491B (en) | 2019-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105996805B (en) | A kind of control method of Household electric oven | |
| CN204192406U (en) | Air pot | |
| CN106510491A (en) | Frying and roasting method and control device of food processor for frying and roasting foods by hot air | |
| CN206560361U (en) | A kind of improved air fryer | |
| CN105615686B (en) | Air pot | |
| CN106618249B (en) | Control method of air fryer | |
| CN208740748U (en) | A kind of electric oven for frying function with air | |
| CN206867128U (en) | A kind of air fryer with power-down protection | |
| CN213371512U (en) | Cooking utensil | |
| CN209360464U (en) | A kind of pressure-air fryer machine | |
| CN209202775U (en) | A kind of Multifucntional pot | |
| CN104026995A (en) | Baking oven with climate controlled temperature limiter | |
| CN110464222A (en) | A kind of electric cooker control method, device and electric cooker | |
| CN213524863U (en) | Cooking utensil | |
| CN109549469A (en) | Cooking utensil | |
| CN102499590A (en) | Air flue type deep fryer | |
| CN206724241U (en) | A kind of temperature automatically controlled electric stove for not producing oil smoke | |
| CN209661263U (en) | Wind path valve and micro- with the device scorch all-in-one machine | |
| TW202220495A (en) | Electrical appliance, controller for use with electrical appliance, method of controlling electrical appliance, electrical heating appliance and electrical device | |
| CN209983985U (en) | Automatic system of cooking and use intelligent pot and induction cooker of this system | |
| CN211186911U (en) | Multifunctional air oven | |
| CN210291992U (en) | Smoke separation control system and cooker using same | |
| CN203634035U (en) | Low energy consumption air fryer | |
| CN109393954A (en) | Wind path valve and micro- with the device scorch all-in-one machine | |
| CN111728501A (en) | Baking control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |