CN108378716A - A kind of heating tube, electric oven and control method - Google Patents
A kind of heating tube, electric oven and control method Download PDFInfo
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- CN108378716A CN108378716A CN201810038650.3A CN201810038650A CN108378716A CN 108378716 A CN108378716 A CN 108378716A CN 201810038650 A CN201810038650 A CN 201810038650A CN 108378716 A CN108378716 A CN 108378716A
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- heating tube
- electric oven
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- heating
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- 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
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- 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
- A47J37/0664—Accessories
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention belongs to heating element technical field, a kind of heating tube, including four independent heating pipes are disclosed, and four independent heating pipes and be respectively the first heating tube, the second heating tube, third heating tube and the 4th heating tube from inside to outside.Also disclose a kind of electric oven and control method, electric oven includes heating module, hot air circulation module, air draft module and temperature control modules, heating module includes heating tube, back heating tube and bottom-heated pipe, and heating tube is arranged on the roof inside electric oven.Above-mentioned heating tube is by being arranged four from inside to outside and the independent heating pipe that is all different of power, by the keying for controlling one or more of four independent heating pipes, the appearance at thermal field dead angle in electric oven can be effectively reduced, so that the thermal field in electric oven is uniform, the accurate baking to food materials is realized.
Description
Technical field
The present invention relates to a kind of heating element technical field more particularly to heating tube, electric oven and control methods.
Background technology
The common configuration of built-in type oven is inside and outside two heating tubes of setting, lower part, each cloth in back at the top of oven at this stage
A heating tube, oven top layout cooling fan are set, thermal circulation fan is arranged at oven back.It is generated by thermal circulation fan
Air-flow makes the hot-air inside oven recycle.The temperature that certain point in oven is acquired by NTC temp probes, is calculated with PID
Method controls the break-make of heating tube, and then achievees the effect that be heated evenly.But due to the invariablenes turning speed of back thermal circulation fan, make
The cycle dead angle for generating hot-air can only be led to there are one the constant speed in direction cycle by obtaining oven hot inside air.And above-mentioned knot
Structure makes door body nearby and the temperature near heat emission hole is difficult to keep consistent with other positions.And in top outside heating tube and top
Heating tube causes heat to be difficult to be recycled to each corner of oven so that from heating because power problem can not be opened simultaneously
The slightly remote position temperature of pipe is relatively low.
Also some ovens increase the quantity of NTC temp probes, while measuring the temperature of multiple spot inside oven.Pass through compensation
Algorithm makes thermal field inside oven reach a metastable value.But this mode can only optimize the thermal field under existing structure, nothing
Method solves the problems, such as thermal field unevenness.
Also some ovens make airflow circulating area increase by changing inner-tube structure, but this mode can not thoroughly solve certain
The thermal field dead angle of a little positions.And changing structure can be such that technology difficulty increases, and significantly increase product cost.
Invention content
The purpose of the present invention is to provide a kind of heating tube, electric oven and control methods, there is temperature to solve existing oven
Field dead angle, leads to the problem of thermal field unevenness.
For this purpose, the present invention uses following technical scheme：
A kind of heating tube, including four independent heating pipes, and four independent heating pipes and from inside to outside be respectively first plus
Heat pipe, the second heating tube, third heating tube and the 4th heating tube.
The structure setting preferably, body portion of first heating tube takes the shape of the letter U, the tube body of second heating tube
Divide undulate structure setting, the body portion of the third heating tube is in M shape structure settings, the pipe of the four or three heating tube
Body portion setting in rectangular configuration.
Preferably, the heating power of first heating tube, the second heating tube, the 4th heating tube and third heating tube
It is sequentially increased.
The present invention also provides a kind of electric ovens, including heating module, hot air circulation module, air draft module and temperature control
Module, the heating module include above-mentioned heating tube, back heating tube and bottom-heated pipe, and the heating tube is arranged in institute
It states on the roof inside electric oven, the back heating tube is arranged on the rear wall inside the electric oven, and the bottom adds
Heat pipe is arranged on the bottom wall inside the electric oven.
Preferably, the hot air circulation module includes the first motor with cup rotor being arranged inside the electric oven, connection
In the flabellum of the first motor with cup rotor output end, and the bull capacitance of electrical connection first motor with cup rotor.
Preferably, the air draft module includes the gas vent being opened on the electric oven roof, it is connected to the row
Second motor with cup rotor of stomata, and the wind deflector positioned at the second motor with cup rotor input end.
Preferably, the gas vent is placed in the middle position of the tube body of the M shape structures of the third heating tube.
The present invention also provides a kind of control method of the above-mentioned electric oven of power, control baking process enters warm-up phase, bakes
At least one of stage and equal the thermophase stage, wherein：
In the warm-up phase, the second motor with cup rotor, back heating tube, the first heating tube and third heating tube are opened,
Remaining heating tube is closed, and the first motor with cup rotor is run with the first rotating speed；
In the baking stage, the second motor with cup rotor, bottom-heated pipe, third heating tube and the 4th heating tube are opened,
Remaining heating tube is closed, and the first motor with cup rotor is run with the second rotating speed；
In the equal thermophase, the second motor with cup rotor, bottom-heated pipe, the second heating tube and the 4th heating tube are opened,
Remaining heating tube is closed, and the first motor with cup rotor is run with third rotating speed.
Preferably, in the warm-up phase, when the difference between the temperature in preset temperature and the electric oven is more than
When equal to the first set temperature value, judge to toast whether remaining time is zero；
When the baking remaining time is zero, terminate baking process；
When the baking remaining time portion is not zero, judge whether the baking remaining time is more than setting time,
When the baking remaining time is more than or equal to the setting time, into the baking stage；It is small in the baking remaining time
When the setting time, into the equal thermophase.
Preferably, in the baking stage, when the difference between the temperature in preset temperature and the electric oven is more than
When equal to the second set temperature value, the second motor with cup rotor, bottom-heated pipe, third heating tube and the 4th heating tube are being opened
Meanwhile opening the first heating tube；
When the difference between the temperature in preset temperature and the electric oven is less than the second set temperature value, described in judgement
It toasts whether remaining time is more than setting time, when the baking remaining time being more than or equal to the setting time, continues institute
State the baking stage；When the baking remaining time being less than the setting time, into the equal thermophase.
Preferably, in the equal thermophase, when the difference between the temperature in preset temperature and the electric oven is more than
When equal to third set temperature value, the second motor with cup rotor, bottom-heated pipe, the second heating tube and the 4th heating tube are being opened
Meanwhile opening the first heating tube.
The above-mentioned heating tube of the present invention is passed through by the independent heating pipe for being arranged four from inside to outside and power is all different
The keying for controlling one or more of four independent heating pipes, can effectively reduce the appearance at thermal field dead angle in electric oven, into
And make the thermal field in electric oven uniform, realize the accurate baking to food materials.
The above-mentioned electric oven of the present invention, can be real under the premise of not changing whole size by the way that above-mentioned heating tube is arranged
Now thermal field is accurately controlled, has effectively saved cost.
The present invention above-mentioned electric oven control method by control and heating module processed in each heating tube folding and first
The equilibrium of electric oven temperature can be effectively ensured in the frequency of motor with cup rotor, optimize the cured effect of electric oven.
The second motor with cup rotor, back heating tube, the first heating tube and third heating tube are opened in temperature-rise period, with most
The operation of high-power and maximum quantity of wind, can promote preheating speed.Relatively small power and air quantity are then used during baking
Ensure while maturation, the moisture in food materials will not be excessively lost in.By the above-mentioned means, the accurate baking to food materials can be reached
It is roasting.
Description of the drawings
Fig. 1 is the structural schematic diagram of heating tube of the present invention；
Fig. 2 is the front view of electric oven of the present invention；
Fig. 3 is the vertical view of electric oven of the present invention；
Fig. 4 is the structural schematic diagram that heating tube is shown at the top of electric oven of the present invention；
Fig. 5 is the control principle schematic diagram of electric oven of the present invention；
Fig. 6 is the flow chart of the control method of electric oven of the present invention.
In figure：
1, the first heating tube；2, the second heating tube；3, third heating tube；4, the 4th heating tube；5, fixing bracket；6, fixed
Bar；
10, back heating tube；20, bottom-heated pipe；30, relay；40, the first motor with cup rotor；50, bull capacitance；60、
Gas vent；70, the second motor with cup rotor；80, wind deflector；90, microcontroller；100, NTC temp probes.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of heating tube, as shown in Figure 1, the heating tube includes four independent heating pipes, and four independences
Heating tube and from inside to outside be respectively the first heating tube 1, the second heating tube 2, third heating tube 3 and the 4th heating tube 4, it is above-mentioned
First heating tube 1, the second heating tube 2, third heating tube 3 and the 4th heating tube 4 power be all different.
Referring to Fig.1, one end of aforementioned four independent heating pipe is connected by fixing bracket 5, above-mentioned second heating tube, 2 He
It is connected by fixed link 6 between 4th heating tube 4, fixed link 6 is specifically welded on the second heating tube 2 by way of spot welding
In the 4th heating tube 4, the supporting role to the second heating tube 2 and the 4th heating tube 4 is played.Above-mentioned third heating tube 3 and
It is connected also by fixed link 6 between four heating tubes 4, fixed link 6 is welded on third heating tube 3 and the 4th by way of spot welding
In heating tube 4, the supporting role to third heating tube 3 and the 4th heating tube 4 is played.
Take the shape of the letter U the body portion (main portions for playing heat effect) of above-mentioned first heating tube 1 structure setting, and power is most
It is small, preferably use 200W in the present embodiment, and in first heating tube 1 is wrapped in by the second heating tube 2.
The body portion undulate structure setting of above-mentioned second heating tube 2,5 points of above-mentioned fixing bracket are welded in the waveform
In structure, in the present embodiment, the power of second heating tube 2 is 1100W.
The body portion of above-mentioned third heating tube 3 is in M shape structure settings, and the third heating tube 3 is wrapped up above-mentioned second and added
Heat pipe 2 is arranged, and passes through the setting of the body portion of M shape structures so that the heating surface (area) (HS bigger of third heating tube 3, and then work as and answer
When using in electric oven, the appearance at thermal field dead angle in electric oven can be reduced.In the present embodiment, the work(of above-mentioned third heating tube 3
Rate is 1200W.
The body portion setting in rectangular configuration of above-mentioned 4th heating tube 4 is located at outermost and wraps up third heating tube 3
Setting.In the present embodiment, the power of above-mentioned 4th heating tube 4 is 1000W.
The present invention also provides a kind of electric ovens, as in Figure 2-4, the electric oven include heating module, hot air circulation module,
Air draft module and temperature control modules, wherein：
Heating module includes above-mentioned heating tube, back heating tube 10 and bottom-heated pipe 20, and wherein heating tube is arranged
On the roof inside electric oven, back heating tube 10 is arranged on the rear wall inside electric oven, and bottom-heated pipe 20 is arranged
On the bottom wall inside electric oven, above-mentioned each heating tube generates heat by internal resistance silk, leads to the hot spoke of external stainless steel tube
It penetrates and provides heat for electric oven inside.In the present embodiment, the power of above-mentioned back heating tube 10 is 2000W, bottom-heated pipe 20
Power be 1100W.Will not be excessive in order to ensure the general power of electric oven, the first heating tube 1, second heating of above-mentioned heating tube
Pipe 2, third heating tube 3 and the 4th heating tube 4 cannot be opened simultaneously, and total heating power of the independent heating pipe of unlatching should not surpass
Cross 2400W.And the total work for each heating tube (including heating tube, back heating tube 10 and bottom-heated pipe 20) that electric oven is opened
3500W is not to be exceeded in rate.The first heating tube 1, the second heating tube 2, third heating tube 3 and the 4th heating tube 4 of above-mentioned heating tube,
Back heating tube 10 and bottom-heated pipe 20 are connected to temperature control modules (shown in Fig. 5) by relay 30 respectively, pass through
Temperature control modules control the break-make of relay 30, to realize that the keying to each heating tube controls.
In the present embodiment, it is preferred that as shown in figure 4, the 4th heating tube 4 of above-mentioned heating tube is close to the one of electric oven door body
The distance L1 of lateral extent electric oven door body is minimum, and the distance of other lateral extent electric oven side walls of the 4th heating tube 4 is L2, and L2
More than L1.Temperature when being arranged with this configuration, can compensate for and improving electric oven baking at the position of door body so that electricity
Temperature Distribution inside oven is more uniform.
Above-mentioned hot air circulation module includes the first motor with cup rotor 40 being arranged inside electric oven, is connected to the first split-pole electricity
The flabellum (not shown) of 40 output end of machine, and it is electrically connected the bull capacitance 50 of the first motor with cup rotor 40.In the present embodiment,
Above-mentioned first motor with cup rotor 40 is for realizing the forced convertion of the hot-air inside electric oven, 40 band of specifically the first motor with cup rotor
Dynamic flabellum rotation, flabellum then disturb the hot-air inside electric oven, form convection current, realize the following in electric oven of hot-air
Ring.
Above-mentioned bull capacitance 50 is connected to temperature control modules, is controlled by temperature control modules and changes bull capacitance 50
Tap can change the input voltage of the first motor with cup rotor 40, and then change the rotating speed of the first motor with cup rotor 40, and then change heat
The circulation rate of air.In the present embodiment, above-mentioned bull capacitance 50 enables to the first motor with cup rotor 40 tool, and there are three input electricity
Pressure, the rotating speed of corresponding first motor with cup rotor 40 also there are three, specially 800rpm, 1200rpm, 2000rpm.
Said exhaust module includes the gas vent 60 being opened on electric oven roof, is connected to the second split-pole of gas vent 60
Motor 70, and the wind deflector 80 positioned at 70 input end of the second motor with cup rotor.The third heating tube 3M shape knots of above-mentioned heating tube
The tube body of structure enables to gas vent 60 to be placed in the middle position of the tube body of the M shape structures, i.e., by by third heating tube 3
Shaft design be M shape structures, enable to third heating tube 3 to avoid the position of gas vent 60, prevent temperature at gas vent 60
It is excessively high, influence the use of electric oven.
Above-mentioned second motor with cup rotor 70 is used to, to the air draft inside electric oven, play the role of adjusting heat dissipation moisture,
Second motor with cup rotor 70 is connected to temperature control modules by relay 30, controls relay 30 by temperature control modules, comes
Control the keying of the second motor with cup rotor 70.In the present embodiment, the invariablenes turning speed of the second motor with cup rotor 70 is 2300rpm.
There are two the settings of above-mentioned wind deflector 80, is symmetrically arranged in the both sides of the input terminal of the second motor with cup rotor 70, is used for
During air draft, the flow direction of hot-air is oriented to.Preferably, above-mentioned two wind deflector 80 is obliquely installed, and two are led
Aerofoil 80 is less than two wind deflectors 80 far from the second motor with cup rotor 70 close to the distance between one end of the second motor with cup rotor 70
The distance between one end.
Above-mentioned temperature control modules include microcontroller 90 and are connected to the NTC temp probes 100 of microcontroller 90, wherein
NTC temp probes 100 are used to acquire temperature in electric oven, and temperature data is passed to microcontroller 90, the then root of microcontroller 90
According to the temperature data of reception, each heating tube of above-mentioned heating module, the first motor with cup rotor 40 of hot air circulation module and more are controlled
Head capacitance 50, air draft module the second motor with cup rotor 70 work schedule, to realize to the equal control of temperature in electric oven, into
And reach best cured effect.
The present invention also provides a kind of control methods of electric oven, specifically control baking process and enter warm-up phase, bake
In at least one of stage and equal the thermophase stage, Fig. 5 is can refer to, which specifically includes following steps：
S10：Into warm-up phase, the second motor with cup rotor 70, back heating tube 10, the first heating tube 1 and third are opened
Heating tube 3 closes remaining heating tube, and runs the first motor with cup rotor 40 with the first rotating speed.
In the present embodiment, above-mentioned second motor with cup rotor 70 is in operating status always after electric oven unlatching, for radiating,
And after entire baking process, above-mentioned second motor with cup rotor 70 can also work a period of time, until temperature drop in electric oven
It can just be closed to 60 DEG C or less, to achieve the purpose that accelerate the cooling rate of electric oven.
After entering warm-up phase, back heating tube 10, the first heating tube 1 and third being arranged at the top of electric oven are opened
Bottom-heated pipe 20 and the second heating tube 2,4 Close All of the 4th heating tube can met permission by heating tube 3 at this time
Under power rating so that heating heat reaches maximum.The first split-pole wind turbine is run (particular by adjusting with the first rotating speed simultaneously
The tap of bull capacitance 50 realizes the first rotating speed), in the present embodiment, the first rotating speed is 2000rpm, i.e. the first motor with cup rotor 40
Maximum (top) speed.It is rotated with maximum (top) speed by the first motor with cup rotor 40, the back heating tube 10, first opened is enabled to heat
Pipe 1 and the heat of third heating tube 3 radiate rapidly each position in electric oven, simultaneously as at this time without food, without
Worry that moisture can be largely lost.Temperature in warm-up phase, electric oven is constantly in ascent stage, therefore one is carried out per 1min
Secondary pid algorithm temperature control, main purpose are that the waveform of thermal field is made more to stablize when secondary undulation at the beginning of temperature.Specifically, above-mentioned
The mode of pid algorithm temperature control is as follows：I.e. by the temperature in NTC temp probes 100 in real time detection electric oven, and pass through microcontroller
90 calculate the difference between the temperature in the preset temperature and electric oven of 100 detection of NTC temp probes in real time, due to being in heating
Stage, the temperature in electric oven are less than preset temperature, when the difference between the temperature in preset temperature and electric oven is less than first
When set temperature value (the first set temperature value is 5 DEG C in the present embodiment), then back heating tube is persistently controlled by pid algorithm
10, the first heating tube 1 and third heating tube 3 heat up, when the difference between the temperature in preset temperature and electric oven is more than
When equal to the first set temperature value, judges to toast whether remaining time is zero, if baking remaining time is zero, directly terminate
Baking process completes baking.
If baking remaining time portion is not zero, judge to toast whether remaining time is more than setting time (this implementation
Example setting time is 5 minutes), if baking remaining time is more than or equal to setting time, enter the baking stage；If baking
When remaining time is less than setting time, then enter equal thermophase.
S20：Into the stage of baking, the second motor with cup rotor 70, bottom-heated pipe 20, third heating tube 3 and the 4th are opened
Heating tube 4 closes remaining heating tube, and runs the first motor with cup rotor 40 with the second rotating speed.
It is more than or equal to setting time when baking remaining time, into after the baking stage, the baking stage is the master of food maturation
The stage is wanted, accurate temperature control is needed at this time, i.e., carried out a pid algorithm temperature control every 30 seconds.In order to preferably realize to food materials
Baking is opened the second motor with cup rotor 70, bottom-heated pipe 20, third heating tube 3 and the 4th heating tube 4 in the stage of baking, is closed
Close remaining heating tube, it is because in the food temperature rise period to open third heating tube 3, and third heating tube 3 being capable of slow uniform spoke
Heat is penetrated, ensures the maturation of food.At this time in order to preserve the moisture inside food materials, the second rotating speed of the first motor with cup rotor 40 is
1200rpm。
In this step, if the difference between temperature in preset temperature and electric oven is more than or equal to the second set temperature value
When (the second set temperature value of the present embodiment is 3 DEG C), the first heating tube 1 is opened at this time, and the first heating tube 1 is the small of additional heat
Power heating tube, power only have 200W, this stage is used as additional heat during accurate temperature control.When judging to toast residue simultaneously
Between whether be zero, if baking remaining time be zero, directly terminate baking process, that is, complete baking.If baking is remaining
Between portion be not zero, continue to judge to toast whether remaining time is more than setting time (the present embodiment setting time is 5 minute), if
When toasting remaining time more than or equal to setting time, then continue the baking stage；If toast remaining time less than setting time,
Then enter equal thermophase.
If the difference between temperature in preset temperature and electric oven is less than the second set temperature value, need not open
First heating tube 1 first judges to toast whether remaining time is zero at this time, if baking remaining time is zero, directly terminates to dry
Roasted journey completes baking.If baking remaining time portion is not zero, when whether continuing to judge to toast remaining time more than setting
Between (the present embodiment setting time be 5 minutes) continue to bake rank if baking remaining time is more than or equal to setting time
Section；If toast remaining time less than setting time, enter equal thermophase.
S30：Into equal thermophase, the second motor with cup rotor 70, bottom-heated pipe 20, the second heating tube 2 and the 4th are opened
Heating tube 4 closes remaining heating tube, and runs the first motor with cup rotor 40 with third rotating speed.
The equal thermophase is the colouring stage, specifically, be to bake crackling on food materials surface, at this time the second motor with cup rotor 70,
Bottom-heated pipe 20, the second heating tube 2 and the 4th heating tube 4, close remaining heating tube.Open the purpose of the second heating tube 2
Be because its wavy shaped configuration tube body can quick radiations heat energy, achieve the purpose that rapid burned food materials surface.First cover
The third rotating speed of pole motor 40 is 800rpm.
In the equal thermophase, when the difference between the temperature in preset temperature and electric oven is more than or equal to third set temperature
When value (in the present embodiment, third set temperature value is 5 DEG C), add in the second motor with cup rotor 70 of unlatching, bottom-heated pipe 20, second
While heat pipe 2 and the 4th heating tube 4, the first heating tube 1 is opened, is used as additional heat during accurate temperature control.And sentence
Whether disconnected baking remaining time is zero, if baking remaining time is zero, terminates baking process, that is, completes baking.If dried
Roasting remaining time, portion was not zero, then continued equal thermophase.
In the equal thermophase, when the difference between the temperature in preset temperature and electric oven is less than third set temperature value
When (in the present embodiment, third set temperature value is 5 DEG C), then the first heating tube 1 need not be opened, when judging that baking is remaining at this time
Between whether be zero, if baking remaining time be zero, terminate baking process, that is, complete baking.If toasting remaining time portion
It is not zero, then repeats to judge whether the difference between the temperature in preset temperature and electric oven is more than or equal to third set temperature
Value, and the operation after judging is repeated, until remaining time is zero, terminate baking process.
It by the above three stage, enables to food materials in entire baking process, reaches best cured effect, and energy
It is enough that specific food materials (such as meat food materials) are more accurately controlled.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (11)
1. a kind of heating tube, which is characterized in that including four independent heating pipes, and four independent heating pipes and distinguish from inside to outside
For the first heating tube (1), the second heating tube (2), third heating tube (3) and the 4th heating tube (4).
2. heating tube according to claim 1, which is characterized in that the body portion of first heating tube (1) takes the shape of the letter U knot
Structure is arranged, the body portion undulate structure setting of second heating tube (2), the tube body of the third heating tube (3)
Divide is in M shape structure settings, the body portion setting in rectangular configuration of the four or three heating tube.
3. heating tube according to claim 1, which is characterized in that first heating tube (1), the second heating tube (2),
The heating power of four heating tubes (4) and third heating tube (3) is sequentially increased.
4. a kind of electric oven, including heating module, hot air circulation module, air draft module and temperature control modules, feature exist
In the heating module includes claim 1-3 any heating tube, back heating tube (10) and the bottom-heated pipe
(20), the heating tube is arranged on the roof inside the electric oven, and back heating tube (10) setting is roasting in the electricity
On rear wall inside case, the bottom-heated pipe (20) is arranged on the bottom wall inside the electric oven.
5. electric oven according to claim 4, which is characterized in that the hot air circulation module includes that setting is roasting in the electricity
The first motor with cup rotor (40) inside case is connected to the flabellum of the first motor with cup rotor (40) output end, and electrical connection institute
State the bull capacitance (50) of the first motor with cup rotor (40).
6. electric oven according to claim 4, which is characterized in that the air draft module includes being opened in the electric oven top
Gas vent (60) on wall is connected to the second motor with cup rotor (70) of the gas vent (60), and is located at second split-pole
The wind deflector (80) of motor (70) input end.
7. electric oven according to claim 6, which is characterized in that the gas vent (60) is placed in the third heating tube
(3) middle position of the tube body of M shape structures.
8. a kind of control method of any electric ovens of claim 4-7, which is characterized in that control baking process enters pre-
The hot stage bakes at least one of stage and equal the thermophase stage, wherein：
In the warm-up phase, the second motor with cup rotor (70), back heating tube (10), the first heating tube (1) and third are opened
Heating tube (3) closes remaining heating tube, and runs the first motor with cup rotor (40) with the first rotating speed；
In the baking stage, the second motor with cup rotor (70), bottom-heated pipe (20), third heating tube (3) and the 4th are opened
Heating tube (4) closes remaining heating tube, and runs the first motor with cup rotor (40) with the second rotating speed；
In the equal thermophase, the second motor with cup rotor (70), bottom-heated pipe (20), the second heating tube (2) and the 4th are opened
Heating tube (4) closes remaining heating tube, and runs the first motor with cup rotor (40) with third rotating speed.
9. control method according to claim 8, which is characterized in that in the warm-up phase, when preset temperature with it is described
When the difference between temperature in electric oven is more than or equal to the first set temperature value, judge to toast whether remaining time is zero；
When the baking remaining time is zero, terminate baking process；
When the baking remaining time portion is not zero, judge whether the baking remaining time is more than setting time, described
When toasting remaining time more than or equal to the setting time, into the baking stage；It is less than institute in the baking remaining time
When stating setting time, into the equal thermophase.
10. control method according to claim 9, which is characterized in that in the baking stage, when preset temperature with it is described
When the difference between temperature in electric oven is more than or equal to the second set temperature value, the second motor with cup rotor (70), bottom are being opened
While heating tube (20), third heating tube (3) and the 4th heating tube (4), the first heating tube (1) is opened；
When the difference between the temperature in preset temperature and the electric oven is less than the second set temperature value, judge that baking is remaining
Whether the time is zero, if baking remaining time is zero, terminates baking process；If baking remaining time portion is not zero, after
It is continuous to judge to toast whether remaining time is more than setting time, when the baking remaining time being more than or equal to the setting time,
Continue the baking stage；When the baking remaining time being less than the setting time, into the equal thermophase.
11. control method according to claim 9, which is characterized in that in the equal thermophase, when preset temperature with it is described
When the difference between temperature in electric oven is more than or equal to third set temperature value, the second motor with cup rotor (70), bottom are being opened
While heating tube (20), the second heating tube (2) and the 4th heating tube (4), the first heating tube (1) is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038650.3A CN108378716A (en) | 2018-01-16 | 2018-01-16 | A kind of heating tube, electric oven and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109164849A (en) * | 2018-08-17 | 2019-01-08 | 北海飞九天电子科技有限公司 | A kind of control method and its control system based on heating time and temperature control oven |
| CN109171484A (en) * | 2018-09-14 | 2019-01-11 | 广东美的厨房电器制造有限公司 | The control method and cooking appliance of cooking appliance |
| CN109460086A (en) * | 2018-12-26 | 2019-03-12 | 仪晟科学仪器(嘉兴)有限公司 | Multi-channel intelligent temperature control vacuum system apparatus for baking |
| CN111419079A (en) * | 2020-05-20 | 2020-07-17 | 青岛海尔智慧厨房电器有限公司 | Steaming and baking oven and integrated stove with same |
| CN113974426A (en) * | 2021-10-18 | 2022-01-28 | 华帝股份有限公司 | Multi-section temperature field control method and system for steam oven and storage medium |
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