CN107592692A - The electromagnetic heating control system and its control method of a kind of electromagnetic oven - Google Patents
The electromagnetic heating control system and its control method of a kind of electromagnetic oven Download PDFInfo
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Abstract
The present invention relates to a kind of electromagnetic heating control system of electromagnetic oven, including：Electromagnetic heating coil；Module is tested and analyzed, is connected with electromagnetic heating coil, to detect the electrical parameter in electromagnetic heating coil；Control module, the input of control module is connected with testing and analyzing the output end of module, to control the heating power of electromagnetic heating coil or heat time；The output end connection of IGBT drive module, its input and control module；IGBT, IGBT C-terminal are connected with electromagnetic heating coil, and IGBT G ends are connected with IGBT drive module；The electromagnetic oven heating control system also includes human-computer interaction interface, and the human-computer interaction interface is connected with detection and analysis module, human-computer interaction interface, is connected with control module, and the temperature value that user is inputted is transferred to control module.Accurate control to temperature can be realized by the structure.
Description
Technical field
The present invention relates to technical field of kitchen wares, more particularly, to a kind of heating control system of electromagnetic oven, while also relates to
A kind of and control method of electromagnetic oven heating.
Background technology
Cooking apparatus such as electromagnetic oven etc. has been widely used in family, and electromagnetic oven structure generally comprises shell, located at outer
Panel on shell and the electromagnetic heating coil between shell and panel and control circuit board, the electricity of this ordinary construction
Magnetic stove is sufficient for the needs of heating, and after electromagnetic oven is opened, electromagnetic heating coil is powered and produces heat, is passed to by panel
Utensil to be heated, such as pan etc..
But common electromagnetic oven can not realize the control to temperature, heated condition is will always be in after electromagnetic oven is opened,
Can not be by heating and temperature control in a rational scope, therefore, being provided with temperature sensor, the temperature on some electromagnetic ovens
Degree sensor is generally located on close to the position of panel, can then pass through circuit with detection panel temperature by temperature sensor
Control, by panel temperature control within the specific limits, although this method can realize the control to temperature, but still exist very
It is more insufficient, such as, detection of the temperature sensor to temperature has certain hysteresis quality, therefore, its control accuracy to temperature compared with
It is low.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided a kind of precise control of temperature of being capable of
Electromagnetic oven heating control system and control method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of electromagnetic heating control system of electromagnetic oven, including：
Electromagnetic heating coil；
Module is tested and analyzed, is connected with electromagnetic heating coil, to detect the electrical parameter in electromagnetic heating coil；
Control module, the input of control module is connected with testing and analyzing the output end of module, to control electromagnetic heating coil
Heating power or the heat time；
The output end connection of IGBT drive module, its input and control module；
IGBT, IGBT C-terminal are connected with electromagnetic heating coil, and IGBT G ends are connected with IGBT drive module；
The electromagnetic oven heating control system also includes human-computer interaction interface, and the human-computer interaction interface connects with detection and analysis module
Connect,
Human-computer interaction interface, it is connected with control module, and the temperature value that user is inputted is transferred to control module.
Preferably, the electromagnetic oven includes the temperature control layer for being capable of electromagnetic signal caused by inductive electromagnetic heating coil.Institute
It is usually that ferromagnetism or ferrimagnetic material are made to state temperature control layer, such as permalloy, Precise Alloy, and its magnetic conductivity is in curie point
When, bust is understood to zero or close to zero, and the magnetic conductivity of the temperature control layer is 2000~200000 H/m, and the resistivity of temperature control layer is 30
~130 μ Ω cm.
Preferably, the temperature control layer is located at the top of electromagnetic heating coil.Specifically, the electromagnetic oven includes panel,
The temperature control layer is located on panel, or, pan is provided with above the electromagnetic oven, the temperature control layer is on pan.
Preferably, the temperature control layer is made up of permalloy material or Precise Alloy material.
Preferably, the Curie-point temperature of permalloy material or the Precise Alloy material is Celsius at 30 degrees Celsius to 500
Between degree.Preferably between 70 degrees Celsius to 400 degrees Celsius, more preferably between 180 degrees Celsius to 350 degrees Celsius.When
When temperature control layer temperature reaches temperature control layer curie point, by bust to close to zero, its temperature will top out temperature control layer magnetic conductivity.
Further, the Precise Alloy material is material of the Curie-point temperature between 180 degrees Celsius to 230 degrees Celsius
Material.Such as Precise Alloy 4J36（The triumphant metallurgical metal products Co., Ltd production in Shanghai）Or Precise Alloy 4J32（The triumphant metallurgical category in Shanghai
Products Co., Ltd produces）.Precise Alloy 4J36 is a kind of special low bulk iron-nickel alloy with super-low expansion coefficient, its
Curie point is 230 degrees Celsius；Precise Alloy 4J32 alloys are also known as super invar (Super-Invar) alloy, and its Curie-point temperature is
220 degrees Celsius.
Verified through research, the Precise Alloy material that this patent can be applied to be preferably standard No. for GB/T15018-94,
Following alloy material cited by YB/T5239-2005, YB/T5262-93, YB/T5254-2011, wherein standard No. GB/
T15018-94 refers to《National Standard of the People's Republic of China's Precise Alloy trade mark》, standard No. YB/T5254-2011 refers to《In
Magnificent people's republic's iron and steel industry professional standard》.
| Types of alloys | Alloy designations | Curie point |
| Ferromanganese | 4J59 | 70 |
| Constant modulus alloy | 3J53 | 110 |
| Constant modulus alloy | 3J53Y | 110 |
| Elastic alloy | Ni44MoTiAl | 120 |
| Constant modulus alloy | 3J58 | 130 |
| Elastic alloy | 3J54 | 130 |
| Elastic alloy | 3J58 | 130 |
| Elastic alloy | 3J59 | 150 |
| Amorphous soft magnetic alloy | (FeNiCo)78(SiB)22 | 150 |
| Elastic alloy | 3J53 | 155 |
| Elastic alloy | 3J61 | 160 |
| Elastic alloy | 3J62 | 165 |
| Precise Alloy | 4J36 | 230 |
| Precise Alloy | 4J32 | 220 |
Elastic alloy 3J53 chemical composition includes in table：
C element content is not more than 0.05%；
The content of S elements is not more than 0.020%；
The content of P element is not more than 0.020%；
The content of Mn elements is not more than 0.80%；
The content of Si elements is not more than 0.80%；
The content of Ni elements is 41.5%~43.0%；
The content of Cr elements is 5.2%~5.8%；
The content of Ti elements is 2.3%~2.7%；
The content of Al elements is 0.5%~0.8%；
Surplus is Fe elements.
Elastic alloy 3J58 chemical composition includes：
C element content is not more than 0.05%；
The content of S elements is not more than 0.020%；
The content of P element is not more than 0.020%；
The content of Mn elements is not more than 0.80%；
The content of Si elements is not more than 0.80%；
The content of Ni elements is 43.0%~43.6%；
The content of Cr elements is 5.2%~5.6%；
The content of Ti elements is 2.3%~2.7%；
The content of Al elements is 0.5%~0.8%；
Surplus is Fe elements.
Precise Alloy 4J32 chemical composition includes：
C element content is not more than 0.05%；
The content of S elements is not more than 0.020%；
The content of P element is not more than 0.020%；
The content of Mn elements is 0.20%~0.60%；
The content of Si elements is not more than 0.20%；
The content of Ni elements is 31.5%~33.0%；
The content of Co elements is 3.2%~4.2%；
The content of Cu elements is 0.4%~0.8%；
Surplus is Fe elements.
Precise Alloy 4J36 chemical composition includes：
C element content is not more than 0.05%；
The content of S elements is not more than 0.020%；
The content of P element is not more than 0.020%；
The content of Mn elements is 0.20%~0.60%；
The content of Si elements is not more than 0.30%；
The content of Ni elements is 35.0%~37.0%；
Surplus is Fe elements.
Above alloy material can provide or pass through other public sale canals by the triumphant metallurgical metal products Co., Ltd production in Shanghai
Road obtains.
In addition, the content of iron is 35~70% in the permalloy, the content 30~65% of nickel.
The content of iron is 35~70% in permalloy, the content 30~65% of nickel.
Present invention also offers a kind of method for heating and controlling of electromagnetic oven, is providing the base of above-mentioned electromagnetic heating control system
On plinth, also comprise the following steps：
The temperature value of S1 setting Electromagnetic Heatings or electrical parameter values corresponding with temperature value, are designated as T0, the temperature value is particularly preferred
For the temperature value of temperature control layer；
Electrical parameter values in S2 detection electromagnetic heating coils, are designated as electrical parameters detection value P1, the detected value of electrical parameter is converted to
Corresponding detection temperature value T1, or, by step I）In set temperature value T0Corresponding electrical parameter values are converted to, are designated as electric ginseng
Number setting value P0；
S3 is by T1With T0+ Δ t is compared, and works as T1＜ T0During+Δ t, electromagnetic heating coil continues to heat, and works as T1≥ T0+Δt
When, electromagnetic heating coil stops heating or reduces heating power；Or
By P1With P0+ Δ p is compared,
S11 is when electrical parameter values and temperature value proportional and P1＜ P0During+Δ p, electromagnetic heating coil continues to heat, and works as P1
≥ P0During+Δ p, electromagnetic heating coil stops heating or reduces heating power；
S12 is in inversely prroportional relationship and P when electrical parameter values and temperature value1＞ P0During+Δ p, electromagnetic heating coil continues to heat, and works as P1
≤ P0During+Δ p, electromagnetic heating coil stops heating or reduces heating power.
The present invention is used as the foundation for judging temperature level by the electrical parameter values detected in electromagnetic heating coil, eliminates
The additional components such as temperature sensor, in addition, the control method can be used cooperatively together with temperature control layer, temperature control layer and Electromagnetic Heating
Coil can mutual induction, now the electrical parameter values in electromagnetic heating coil more can accurately react the temperature of temperature control layer,
That is the electrical parameter change by detecting electromagnetic heating coil can accurately detect the heating-up temperature value of testee, from
And the accurate control to temperature can be realized.
Preferably, 0≤Δ t≤5 DEG C, give set temperature value T0Increase a threshold range, temperature can be reduced as far as possible
Spend the frequency of detection.
Preferably, the electromagnetic parameter is electric current, voltage, resistance parameter or pulse signal, when the electrical parameter is electric current
During parameter, 0≤Δ p≤0.5A, when the electrical parameter is voltage parameter, 0≤Δ p≤50V, when the electrical parameter
For resistance parameter when, the Ω of 0≤Δ p≤5, when the electrical parameter is pulse signal, 0≤Δ p≤3.
Preferably, the electromagnetic oven is additionally provided with timing module, starts timing mould while electromagnetic heating coil is begun to warm up
Block timing, when timing time is M1, step S2 and S3 are performed, according to step S3 comparative result, if electromagnetic heating coil
Meet to continue heating condition, its continuation heat time is M2, step S2 and S3 is then repeated, if electromagnetic heating coil is again
Secondary to meet to continue heating condition, its continuation heat time is M2, and repeats above step.
Preferably, when performing step S2, electromagnetic heating coil stops heating.
Preferably, the M1 >=M2, specifically, 0.1 second≤M1≤600 second, 0.1 second≤M2≤300 second.Electromagnetic oven exists
Heating can be concentrated in a period of time after unlatching, when heating to a certain extent after carry out temperature detection again, this mode can be with
Greatly improve the efficiency of heating.
Preferably, the method for heating and controlling of the electromagnetic oven also includes the step of detection pan.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is used as the foundation for judging temperature level by the electrical parameter values detected in electromagnetic heating coil, eliminates temperature
The additional components such as sensor, in addition, the control method can be used cooperatively together with temperature control layer, temperature control layer and electromagnetic heating coil
Can mutual induction, now the electrical parameter values in electromagnetic heating coil more can accurately react the temperature of temperature control layer, that is,
To say, the electrical parameter by detecting electromagnetic heating coil changes the heating-up temperature value that can accurately detect testee, so as to
To realize the accurate control to temperature.
This patent preferably uses temperature control layer material of the Curie-point temperature between 30 degrees Celsius to 500 degrees Celsius, Neng Goujin
One step realizes the control to temperature control layer temperature in 30 degrees Celsius to 500 degree Celsius ranges, and this control method changes tradition
Manual control mode, realize temperature automatically controlled effect.
Brief description of the drawings
Fig. 1 is the logical framework figure of electromagnetic heating control system of the present invention；
Fig. 2 is electromagnetic heating coil umber of pulse of the present invention and temperature control layer temperature value corresponding relation schematic diagram；
Fig. 3 is electromagnetic heating coil umber of pulse of the present invention and temperature control layer temperature value another kind corresponding relation schematic diagram；
Fig. 4 is a kind of schematic diagram of temprature control method of the present invention；
Fig. 5 is the schematic diagram of another temprature control method of the present invention.
Embodiment
With reference to embodiment, the present invention is further illustrated.Wherein, being given for example only property of accompanying drawing illustrates,
What is represented is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To those skilled in the art
For, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Same or analogous label corresponds to same or analogous part in the accompanying drawing of the embodiment of the present invention；In retouching for the present invention
In stating, it is to be understood that if it is based on accompanying drawing to have the orientation of the instructions such as term " on ", " under ", "left", "right" or position relationship
Shown orientation or position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply meaning
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore position relationship described in accompanying drawing
Term being given for example only property explanation, it is impossible to the limitation to this patent is interpreted as, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
As shown in figure 1, the present invention relates to a kind of heating control system of electromagnetic oven, including：
Electromagnetic heating coil；
Module is tested and analyzed, is connected with electromagnetic heating coil, to detect the electrical parameter in electromagnetic heating coil；
Control module, the input of control module is connected with testing and analyzing the output end of module, to control electromagnetic heating coil
Heating power or the heat time；
The output end connection of IGBT drive module, its input and control module；
IGBT, IGBT C-terminal are connected with electromagnetic heating coil, and IGBT G ends are connected with IGBT drive module；
The electromagnetic oven heating control system also includes human-computer interaction interface, and the human-computer interaction interface connects with detection and analysis module
Connect,
Human-computer interaction interface, it is connected with control module, and the temperature value that user is inputted is transferred to control module.
Preferably, the electromagnetic oven is additionally provided with timing module.
The heating control system of the electromagnetic oven also includes being capable of electromagnetic signal caused by inductive electromagnetic heating coil
Temperature control layer, the temperature control layer are located at the top of electromagnetic heating coil, and specifically, the temperature control layer can both be located at electromagnetic oven
On panel, the panel is located at the top of electromagnetic heating coil, and the temperature control layer can also be located on pan, such as the bottom of a pan or pot
With, when needing heating, the pan is put on electromagnetic oven panel.
The temperature control layer is made up of ferromagnetism or ferrimagnetic material, such as permalloy, Precise Alloy, and its magnetic conductivity exists
During curie point, for meeting bust to zero or close to zero, so-called permalloy is iron-nickel alloy.The magnetic conductivity of the temperature control layer be 2000~
200000 H/m, the resistivity of temperature control layer is 30~130 μ Ω cm.
For the present embodiment, the Precise Alloy material is preferably Precise Alloy 4J36（The triumphant metallurgical metal products in Shanghai are limited
Company produces）Or Precise Alloy 4J32（The triumphant metallurgical metal products Co., Ltd production in Shanghai）, the temperature control thickness degree is preferably 0.1
To 3 millimeters, the present embodiment is 1.5 millimeters.When temperature control layer is on pan, the temperature control layer can both make pan entirety,
Can also as a part for pan, by riveting, welding, meltallizing, printing the methods of it is combined with each other with pan main body.
When temperature control layer is on electromagnetic oven panel, the temperature control layer can both be located at panel upper surface, can also be located at panel following table
Face, when panel is composite structure, the temperature control layer can also be located between the upper and lower surface of panel.
The permalloy or the Curie-point temperature of Precise Alloy material that the present embodiment preferably uses are at 30 degrees Celsius to 500
Precise Alloy material between degree Celsius, further preferred Curie-point temperature is between 70 degrees Celsius to 400 degrees Celsius or 150 take the photograph
Family name's degree is to the Precise Alloy material between 350 degrees Celsius, and for the species of Precise Alloy material, this implementation is preferably using as follows
Alloy material：
| Types of alloys | Alloy designations | Curie point |
| Ferromanganese | 4J59 | 70 |
| Constant modulus alloy | 3J53 | 110 |
| Constant modulus alloy | 3J53Y | 110 |
| Elastic alloy | Ni44MoTiAl | 120 |
| Constant modulus alloy | 3J58 | 130 |
| Elastic alloy | 3J54 | 130 |
| Elastic alloy | 3J58 | 130 |
| Elastic alloy | 3J59 | 150 |
| Amorphous soft magnetic alloy | (FeNiCo)78(SiB)22 | 150 |
| Elastic alloy | 3J53 | 155 |
| Elastic alloy | 3J61 | 160 |
| Elastic alloy | 3J62 | 165 |
| Precise Alloy | 4J36 | 230 |
| Precise Alloy | 4J32 | 220 |
Temperature control layer, can also be by powdered or granular Precise Alloy material or permalloy material system in addition to laminated structure
Into, and be attached on panel, i.e., Precise Alloy material or permalloy material are fabricated to powdered or graininess, then passed through
Existing process is compounded on panel.
So-called permalloy is also known as iron-nickel alloy, and the wherein content of iron is 35~70%, more preferably 63~67%, nickel
Content 30~65%, more preferably 37~58%.Iron-nickel alloy has a high magnetic permeability, and curie point can bust to close
Space permeability.
The invention further relates to a kind of method for heating and controlling of electromagnetic oven, comprise the following steps：
S1 sets the temperature value of Electromagnetic Heating, is designated as T0, the temperature value is especially preferably the temperature value of temperature control layer；Due to controlling
Specific corresponding relation in the presence of temperature, between temperature value and current value be present, a certain temperature value corresponds to specific current value, together
Reason, a certain current value also correspond to specific temperature value, and therefore, temperature value and current value have equivalent substitution relation, no matter set
Temperature value or current value, it can finally be reflected on temperature value；
Electrical parameter values in S2 detection electromagnetic heating coils, are designated as electrical parameters detection value P1, the detected value of electrical parameter is converted to
Corresponding detection temperature value T1, or, by step I）In set temperature value T0Corresponding electrical parameter values are converted to, are designated as electric ginseng
Number setting value P0；
S3 is by T1With T0+ Δ t is compared, and works as T1＜ T0During+Δ t, electromagnetic heating coil continues to heat, and works as T1≥ T0+Δt
When, electromagnetic heating coil stops heating or reduces heating power；Or
By P1With P0+ Δ p is compared,
S11 is when electrical parameter values and temperature value proportional and P1＜ P0During+Δ p, electromagnetic heating coil continues to heat, and works as P1
≥ P0During+Δ p, electromagnetic heating coil stops heating or reduces heating power；
S12 is in inversely prroportional relationship and P when electrical parameter values and temperature value1＞ P0During+Δ p, electromagnetic heating coil continues to heat, and works as P1
≤ P0During+Δ p, electromagnetic heating coil stops heating or reduces heating power.
Preferably, in step S3,0≤Δ t≤5.
Preferably, the electromagnetic parameter is electric current, voltage, resistance parameter or pulse signal, when the electrical parameter is electric current
During parameter, 0≤Δ p≤0.5A, when the electrical parameter is voltage parameter, 0≤Δ p≤50V, when the electrical parameter
For resistance parameter when, the Ω of 0≤Δ p≤5, when the electrical parameter is pulse signal, 0≤Δ p≤3.
Preferably, the electromagnetic oven is additionally provided with timing module, starts timing mould while electromagnetic heating coil is begun to warm up
Block timing, when timing time is M1, step S2 and S3 are performed, according to step S3 comparative result, if electromagnetic heating coil
Meet to continue heating condition, its continuation heat time is M2, step S2 and S3 is then repeated, if electromagnetic heating coil is again
Secondary to meet to continue heating condition, its continuation heat time is M2, and repeats above step.
Preferably, the M1 >=M2, such as, 0.1 second≤M1≤600 second, 0.1 second≤M2≤300 second, more specifically, than
Such as, M1=600 second, M2=300 second.
So in the incipient stage of heating, the electromagnetic oven can concentrate heating to improve the efficiency of heating surface.
Preferably, the method for heating and controlling of the electromagnetic oven also includes the step of detection pan.
Preferably, when performing step S2, electromagnetic heating coil stops heating, that is, detecting and heating can both be carried out simultaneously,
It can also carry out respectively, as shown in Figure 4,5.
Specifically, after electromagnetic oven starts startup, electromagnetic heating coil produces electromagnetic signal and starts to carry out temperature control layer
Heating, the electromagnetic signal, which is acted on temperature control layer and is lost by temperature control layer, to decay, and the electrical parameter in electromagnetic heating coil is with temperature control
The change of layer temperature and change, and form specific corresponding relation, the electrical parameter include number of pulses, pulse width, impulse amplitude,
The linear relationship formed between voltage, electric current or resistance parameter etc., such as umber of pulse and temperature control layer temperature, as shown in Figure 2,3,
Detection and analysis module detects the electrical parameter values in electromagnetic heating coil, converts thereof into corresponding temperature value, and lead to user
Cross the set temperature value T of human-computer interaction interface setting0It is compared, if current detection temperature value T1Not less than set temperature value
T0, electromagnetic heating coil will continue to heat, i.e. electromagnetic heating coil can keep original power to improve power progress
Heating, if current detection temperature value T1More than or equal to set temperature value T0, electromagnetic heating coil will stop heating or reduction adds
Thermal power.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (16)
1. a kind of electromagnetic heating control system of electromagnetic oven, including：
Electromagnetic heating coil；
Module is tested and analyzed, is connected with electromagnetic heating coil, to detect the electrical parameter in electromagnetic heating coil；
Control module, the input of control module is connected with testing and analyzing the output end of module, to control electromagnetic heating coil
Heating power or the heat time；
The output end connection of IGBT drive module, its input and control module；
IGBT, IGBT C-terminal are connected with electromagnetic heating coil, and IGBT G ends are connected with IGBT drive module；
The electromagnetic oven heating control system also includes human-computer interaction interface, and the human-computer interaction interface connects with detection and analysis module
Connect,
Human-computer interaction interface, it is connected with control module, and the temperature value that user is inputted is transferred to control module.
2. electromagnetic heating control system according to claim 1, it is characterised in that the electromagnetic oven also includes sensing
The temperature control layer of electromagnetic signal caused by electromagnetic heating coil.
3. electromagnetic heating control system according to claim 2, it is characterised in that the temperature control layer is located at Electromagnetic Heating line
The top of circle.
4. electromagnetic heating control system according to claim 3, it is characterised in that the electromagnetic oven includes panel, described
Temperature control layer is located on panel, or, pan is provided with above the electromagnetic oven, the temperature control layer is on pan.
5. electromagnetic heating control system according to claim 2, it is characterised in that the temperature control layer is by permalloy or essence
Close alloy material is made.
6. electromagnetic heating control system according to claim 2, it is characterised in that the permalloy or Precise Alloy
The Curie-point temperature of material is between 30 degrees Celsius to 500 degrees Celsius.
7. the method for heating and controlling of electromagnetic oven according to claim 6, it is characterised in that the Precise Alloy material is precision
Alloy 4J36, Precise Alloy 4J32, ferromanganese 4J59, constant modulus alloy 3J53, constant modulus alloy 3J53Y, constant modulus alloy
3J58, elastic alloy 3J54, elastic alloy 3J58, elastic alloy 3J59, elastic alloy 3J53, elastic alloy 3J61, elasticity are closed
Golden 3J62, elastic alloy Ni44MoTiAl, Precise Alloy 4J36, Precise Alloy 4J32 or amorphous soft magnetic alloy (FeNiCo)78
(SiB)22。
8. electromagnetic heating control system according to claim 2, it is characterised in that in permalloy the content of iron be 35~
70%, the content 30~65% of nickel.
9. a kind of method for heating and controlling of electromagnetic oven, it is characterised in that the electromagnetism as described in claim 1 to 8 is any is provided and added
Thermal control system, also comprise the following steps：
The temperature value of S1 setting Electromagnetic Heatings or electrical parameter values corresponding with temperature value, are designated as T0；
Electrical parameter values in S2 detection electromagnetic heating coils, are designated as electrical parameters detection value P1, the detected value of electrical parameter is converted to
Corresponding detection temperature value T1, or, by step I）In set temperature value T0Corresponding electrical parameter values are converted to, are designated as electric ginseng
Number setting value P0；
S3 is by T1With T0+ Δ t is compared, and works as T1＜ T0During+Δ t, electromagnetic heating coil continues to heat, and works as T1≥ T0+Δt
When, electromagnetic heating coil stops heating or reduces heating power；Or
By P1With P0+ Δ p is compared,
S11 is when electrical parameter values and temperature value proportional and P1＜ P0During+Δ p, electromagnetic heating coil continues to heat, and works as P1
≥ P0During+Δ p, electromagnetic heating coil stops heating or reduces heating power；
S12 is in inversely prroportional relationship and P when electrical parameter values and temperature value1＞ P0During+Δ p, electromagnetic heating coil continues to heat, and works as P1
≤ P0During+Δ p, electromagnetic heating coil stops heating or reduces heating power.
10. the method for heating and controlling of electromagnetic oven according to claim 9, it is characterised in that 0≤Δ t≤5 DEG C.
11. the method for heating and controlling of electromagnetic oven according to claim 9, it is characterised in that the electromagnetic parameter is electric current, electricity
Pressure, resistance parameter or pulse signal, when the electrical parameter is current parameters, 0≤Δ p≤0.5A, when the electrical parameter
For voltage parameter when, 0≤Δ p≤50V, when the electrical parameter is resistance parameter, the Ω of 0≤Δ p≤5, when described
When electrical parameter is pulse signal, 0≤Δ p≤3.
12. the method for heating and controlling of electromagnetic oven according to claim 9, it is characterised in that the electromagnetic oven is additionally provided with timing
Module, while electromagnetic heating coil is begun to warm up start timing module timing, when timing time be M1, perform step S2 with
S3, according to step S3 comparative result, if electromagnetic heating coil meets to continue heating condition, its continuation heat time is M2,
Then step S2 and S3 are repeated, if electromagnetic heating coil meets to continue heating condition again, its continuation heat time is
M2, and repeat above step.
13. the method for heating and controlling of electromagnetic oven according to claim 12, it is characterised in that when performing step S2, electromagnetism adds
Heat coil stops heating.
14. the method for heating and controlling of electromagnetic oven according to claim 12, it is characterised in that the M1 >=M2.
15. the method for heating and controlling of electromagnetic oven according to claim 14, it is characterised in that 0.1 second≤M1≤600 second, 0.1
Second≤M2≤300 second.
16. the method for heating and controlling of electromagnetic oven according to claim 9, it is characterised in that the computer heating control of the electromagnetic oven
Method also includes the step of detection pan.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016105353418 | 2016-07-08 | ||
| CN201610535341 | 2016-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107592692A true CN107592692A (en) | 2018-01-16 |
| CN107592692B CN107592692B (en) | 2020-12-25 |
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ID=61041539
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720819444.7U Active CN209090936U (en) | 2016-07-08 | 2017-07-07 | A kind of cooker of controllable temperature |
| CN201720820045.2U Active CN207573656U (en) | 2016-07-08 | 2017-07-07 | A kind of electromagnetic heating control system of electromagnetic oven |
| CN201710552973.XA Active CN107592692B (en) | 2016-07-08 | 2017-07-07 | Electromagnetic heating control system of electromagnetic oven and control method thereof |
| CN201710552401.1A Pending CN107581919A (en) | 2016-07-08 | 2017-07-07 | A kind of cooker of controllable temperature and the method for controlling temperature |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110572893A (en) * | 2018-08-29 | 2019-12-13 | 肇庆市尚尼智能家居科技有限公司 | Electromagnetic heating device and temperature control method |
| CN111550835A (en) * | 2019-02-12 | 2020-08-18 | 陈景超 | Heating device with temperature measuring circuit and control method thereof |
| CN113654678A (en) * | 2020-05-12 | 2021-11-16 | 佛山市顺德区美的电热电器制造有限公司 | Heating temperature measurement circuit, temperature measurement method thereof, cooking device and storage medium |
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| CN209090936U (en) * | 2016-07-08 | 2019-07-12 | 肇庆市天宇进出口贸易有限公司 | A kind of cooker of controllable temperature |
| CN108414110A (en) * | 2018-02-09 | 2018-08-17 | 陈景超 | Induction temperature sensing device and temp measuring method, cooker and calutron |
| CN109028181B (en) * | 2018-07-10 | 2020-02-07 | 孙宏斌 | Single-tube electromagnetic oven circuit and single-tube electromagnetic oven control method |
| CN108784413A (en) * | 2018-07-14 | 2018-11-13 | 黄成娇 | A kind of electric baking pan intelligent thermoregulating control system |
| CN110553284A (en) * | 2018-08-29 | 2019-12-10 | 肇庆市尚尼智能家居科技有限公司 | cooking appliance and temperature control method |
| CN111385925B (en) * | 2018-12-29 | 2022-04-19 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic cooking appliance and control method thereof |
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Also Published As
| Publication number | Publication date |
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| CN207573656U (en) | 2018-07-03 |
| CN107592692B (en) | 2020-12-25 |
| CN107581919A (en) | 2018-01-16 |
| CN209090936U (en) | 2019-07-12 |
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