CN107592692B - Electromagnetic heating control system of electromagnetic oven and control method thereof - Google Patents
Electromagnetic heating control system of electromagnetic oven and control method thereof Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 163
- 238000000034 method Methods 0.000 title claims description 20
- 230000006698 induction Effects 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000003993 interaction Effects 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims description 73
- 229910045601 alloy Inorganic materials 0.000 claims description 58
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 229910000889 permalloy Inorganic materials 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 3
- 239000002902 ferrimagnetic material Substances 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 229910016028 MoTiAl Inorganic materials 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005272 metallurgy Methods 0.000 description 5
- 239000011572 manganese Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 2
- 229910001004 magnetic alloy Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to an electromagnetic heating control system of an induction cooker, which comprises: an electromagnetic heating coil; the detection analysis module is connected with the electromagnetic heating coil and used for detecting the electrical parameters in the electromagnetic heating coil; the input end of the control module is connected with the output end of the detection and analysis module and is used for controlling the heating power or the heating time of the electromagnetic heating coil; the input end of the IGBT driving module is connected with the output end of the control module; the C end of the IGBT is connected with the electromagnetic heating coil, and the G end of the IGBT is connected with the IGBT driving module; the induction cooker heating control system also comprises a human-computer interaction interface, wherein the human-computer interaction interface is connected with the detection analysis module, is connected with the control module and transmits the temperature value input by the user to the control module. By the structure, the temperature can be accurately controlled.
Description
Technical Field
The invention relates to the technical field of kitchenware, in particular to a heating control system of an induction cooker, and also relates to a heating control method of the induction cooker.
Background
The induction cooker of this general structure is sufficient to meet the heating requirement, and after the induction cooker is turned on, the electromagnetic heating coil is powered on and generates heat, and the heat is transferred to an appliance to be heated, such as a cooker and the like, through the panel.
However, the common electromagnetic oven cannot control the temperature, and the heating temperature cannot be controlled within a reasonable range because the electromagnetic oven is always in a heating state after being started.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an induction cooker heating control system and method capable of accurately controlling temperature.
In order to solve the technical problems, the invention adopts the technical scheme that:
an electromagnetic heating control system of an induction cooker, comprising:
an electromagnetic heating coil;
the detection analysis module is connected with the electromagnetic heating coil and used for detecting the electrical parameters in the electromagnetic heating coil;
the input end of the control module is connected with the output end of the detection and analysis module and is used for controlling the heating power or the heating time of the electromagnetic heating coil;
the input end of the IGBT driving module is connected with the output end of the control module;
the C end of the IGBT is connected with the electromagnetic heating coil, and the G end of the IGBT is connected with the IGBT driving module;
the induction cooker heating control system also comprises a human-computer interaction interface, the human-computer interaction interface is connected with the detection analysis module,
and the human-computer interaction interface is connected with the control module and transmits the temperature value input by the user to the control module.
Preferably, the induction cooker comprises a temperature control layer capable of inducing an electromagnetic signal generated by the electromagnetic heating coil. The temperature control layer is usually made of ferromagnetic or ferrimagnetic materials, such as permalloy and precision alloy, the magnetic permeability of the temperature control layer can be suddenly reduced to zero or close to zero when the magnetic permeability is at the Curie point, the magnetic permeability of the temperature control layer is 2000-200000H/m, and the resistivity of the temperature control layer is 30-130 mu omega-cm.
Preferably, the temperature control layer is arranged above the electromagnetic heating coil. Particularly, the electromagnetism stove includes the panel, the accuse temperature layer is located on the panel, perhaps, the electromagnetism stove top is equipped with the pan, the accuse temperature layer is located on the pan.
Preferably, the temperature control layer is made of permalloy material or precision alloy material.
Preferably, the curie point temperature of the permalloy material or precision alloy material is between 30 and 500 degrees celsius. Preferably 70 to 400 degrees celsius, and more preferably 180 to 350 degrees celsius. When the temperature of the temperature control layer reaches the Curie point of the temperature control layer, the magnetic permeability of the temperature control layer is suddenly reduced to be close to zero, and the temperature of the temperature control layer stops increasing.
Furthermore, the precision alloy material is a material with the Curie point temperature of 180-230 ℃. Such as precision alloy 4J36 (manufactured by shanghai kaiki metallurgy, inc.) or precision alloy 4J32 (manufactured by shanghai kaiki metallurgy, inc.). The precision alloy 4J36 is a special low-expansion iron-nickel alloy with an ultralow expansion coefficient, and the Curie point of the special low-expansion iron-nickel alloy is 230 ℃; the precision alloy 4J32 alloy is also known as Super Invar (Super-Invar) alloy and has a Curie point temperature of 220 ℃.
Through research and verification, the precise alloy material applicable to the patent is preferably an alloy material listed in the following standard numbers GB/T15018-94, YB/T5239-2005, YB/T5262-93 and YB/T5254-2011, wherein the standard number GB/T15018-94 refers to the national Standard precise alloy trade mark of the people's republic of China, and the standard number YB/T5254-2011 refers to the ferrous metallurgy industry standard of the people's republic of China.
| Type of alloy | Alloy brand | Curie point |
| Iron-manganese alloy | 4J59 | 70 |
| Constant elasticity alloy | 3J53 | 110 |
| Constant elasticity alloy | 3J53Y | 110 |
| Elastic alloy | Ni44MoTiAl | 120 |
| Constant elasticity 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 |
| Precision alloy | 4J36 | 230 |
| Precision alloy | 4J32 | 220 |
The chemical composition of the elastic alloy 3J53 in the table includes:
the content of C element is not more than 0.05%;
the content of S element is not more than 0.020%;
the content of the P element is not more than 0.020%;
the content of Mn element is not more than 0.80 percent;
the content of Si element is not more than 0.80%;
the content of Ni element is 41.5-43.0%;
the content of Cr element is 5.2-5.8%;
the content of Ti element is 2.3-2.7%;
the content of Al element is 0.5-0.8%;
the balance being Fe.
The chemical composition of elastic alloy 3J58 includes:
the content of C element is not more than 0.05%;
the content of S element is not more than 0.020%;
the content of the P element is not more than 0.020%;
the content of Mn element is not more than 0.80 percent;
the content of Si element is not more than 0.80%;
the content of Ni element is 43.0-43.6%;
the content of Cr element is 5.2-5.6%;
the content of Ti element is 2.3-2.7%;
the content of Al element is 0.5-0.8%;
the balance being Fe.
The chemical composition of the precision alloy 4J32 comprises:
the content of C element is not more than 0.05%;
the content of S element is not more than 0.020%;
the content of the P element is not more than 0.020%;
the content of Mn element is 0.20-0.60%;
the content of Si element is not more than 0.20 percent;
the content of Ni element is 31.5-33.0%;
the content of Co element is 3.2% -4.2%;
the content of Cu element is 0.4-0.8%;
the balance being Fe.
The chemical composition of the precision alloy 4J36 comprises:
the content of C element is not more than 0.05%;
the content of S element is not more than 0.020%;
the content of the P element is not more than 0.020%;
the content of Mn element is 0.20-0.60%;
the content of Si element is not more than 0.30%;
the content of Ni element is 35.0-37.0%;
the balance being Fe.
The alloy material can be produced and provided by Shanghai Kai metallurgy products and Co., Ltd or obtained through other public sales channels.
In addition, the permalloy contains 35-70% of iron and 30-65% of nickel.
The permalloy contains 35-70% of iron and 30-65% of nickel.
The invention also provides a heating control method of the induction cooker, which comprises the following steps on the basis of providing the electromagnetic heating control system:
s1 setting electromagnetic heating temperature value or electric parameter value corresponding to the temperature value, and recording as T0The temperature value is particularly preferably the temperature value of the temperature control layer;
s2 detecting the electric parameter value in the electromagnetic heating coil, and recording as the electric parameter detection value P1Converting the detected value of the electrical parameter into a corresponding detected temperature value T1Alternatively, the temperature value T set in step S1 is used0Converting into corresponding electrical parameter value, and recording as electrical parameter set value P0；
S3 reaction of T1And T0+ Δ T is compared when T is1＜T0When the temperature is + delta T, the electromagnetic heating coil continues to heat, and when T is higher than the temperature1≥T0When the temperature is + delta t, the electromagnetic heating coil stops heating or reduces heating power; or
Will P1And P0The comparison is made with + deltap,
s11 when the electric parameter value is in direct proportion to the temperature value and P1＜P0When the temperature is + delta P, the electromagnetic heating coil continues to heat, and when the temperature is P1≥P0When the voltage is + delta p, the electromagnetic heating coil stops heating or reduces heating power;
s12 when the electric parameter value and the temperature value are in inverse proportion relation and P is1＞P0When the temperature is + delta P, the electromagnetic heating coil continues to heat, and when the temperature is P1≤P0At + Δ p, the electromagnetic heating coil stops heating or reduces heating power.
The invention can detect the electric parameter value in the electromagnetic heating coil as the basis for judging the temperature, thereby saving additional parts such as a temperature sensor, and the like.
Preferably, the delta T is more than or equal to 0 and less than or equal to 5 ℃, and a set temperature value T is given0Increasing a threshold range minimizes the frequency of temperature detection.
Preferably, the electromagnetic parameter is current, voltage, resistance parameter or pulse signal, when the electrical parameter is current parameter, Δ p is greater than or equal to 0 and less than or equal to 0.5A, when the electrical parameter is voltage parameter, Δ p is greater than or equal to 0 and less than or equal to 50V, when the electrical parameter is resistance parameter, Δ p is greater than or equal to 0 and less than or equal to 5 Ω, and when the electrical parameter is pulse signal, Δ p is greater than or equal to 0 and less than or equal to 3.
Preferably, the induction cooker is further provided with a timing module which starts timing while the induction heating coil starts heating, and when the timing time is M1, steps S2 and S3 are performed, and according to the comparison result of step S3, if the induction heating coil satisfies the continued heating condition, the continued heating time is M2, and then steps S2 and S3 are repeatedly performed, and if the induction heating coil satisfies the continued heating condition again, the continued heating time is M2, and the above steps are repeated.
Preferably, the electromagnetic heating coil stops heating when step S2 is executed.
Preferably, M1 is not less than M2, specifically, 0.1 second is not less than M1 is not less than 600 seconds, and 0.1 second is not less than M2 is not less than 300 seconds. The induction cooker can be heated in a centralized manner within a period of time after being started, and the temperature is detected after the induction cooker is heated to a certain degree, so that the heating efficiency can be greatly improved.
Preferably, the heating control method of the induction cooker further comprises the step of detecting a pot.
Compared with the prior art, the invention has the beneficial effects that:
the invention can detect the electric parameter value in the electromagnetic heating coil as the basis for judging the temperature, thereby saving additional parts such as a temperature sensor, and the like.
This patent is preferred to use the temperature control layer material of Curie point temperature between 30 degrees centigrade to 500 degrees centigrade, can further realize the control to temperature control layer temperature at 30 degrees centigrade to 500 degrees centigrade within range, and this kind of control method has changed traditional manual control mode, has realized automatic temperature control's effect.
Drawings
FIG. 1 is a logical block diagram of an electromagnetic heating control system of the present invention;
FIG. 2 is a schematic diagram showing the relationship between the number of pulses of the electromagnetic heating coil and the temperature value of the temperature control layer;
FIG. 3 is a schematic diagram showing another corresponding relationship between the number of pulses of the electromagnetic heating coil and the temperature value of the temperature control layer according to the present invention;
FIG. 4 is a schematic diagram of a temperature control method of the present invention;
FIG. 5 is a schematic diagram of another temperature control method of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
As shown in fig. 1, the present invention relates to a heating control system of an induction cooker, comprising:
an electromagnetic heating coil;
the detection analysis module is connected with the electromagnetic heating coil and used for detecting the electrical parameters in the electromagnetic heating coil;
the input end of the control module is connected with the output end of the detection and analysis module and is used for controlling the heating power or the heating time of the electromagnetic heating coil;
the input end of the IGBT driving module is connected with the output end of the control module;
the C end of the IGBT is connected with the electromagnetic heating coil, and the G end of the IGBT is connected with the IGBT driving module;
the induction cooker heating control system also comprises a human-computer interaction interface, the human-computer interaction interface is connected with the detection analysis module,
and the human-computer interaction interface is connected with the control module and transmits the temperature value input by the user to the control module.
Preferably, the induction cooker is further provided with a timing module.
The heating control system of electromagnetism stove is still including the accuse temperature layer that can the produced electromagnetic signal of induction heating coil, the top of induction heating coil is located on the accuse temperature layer, particularly, the accuse temperature layer both can locate on the panel of electromagnetism stove, electromagnetic heating coil's top is located to the panel, accuse temperature layer also can locate on the pan, for example on bottom of a boiler or the pot body, when needs heat, will the pan is put on the electromagnetism stove panel.
The temperature control layer is made of ferromagnetic or ferrimagnetic materials, such as permalloy and precision alloy, and the magnetic permeability of the temperature control layer can be suddenly reduced to zero or close to zero at the Curie point, so that the permalloy is iron-nickel alloy. The magnetic conductivity of the temperature control layer is 2000-200000H/m, and the resistivity of the temperature control layer is 30-130 [ mu ] omega-cm.
For the present embodiment, the precision alloy material is preferably precision alloy 4J36 (manufactured by shanghai kay metallurgy, ltd.) or precision alloy 4J32 (manufactured by shanghai kay metallurgy, ltd.), and the thickness of the temperature control layer is preferably 0.1 to 3 mm, and in the present embodiment is 1.5 mm. When the temperature control layer is arranged on the cooker, the temperature control layer can be made into the whole cooker or can be used as a part of the cooker, and the temperature control layer and the cooker main body are compounded together by riveting, welding, meltallizing, printing and other methods. When the temperature control layer is arranged on the panel of the induction cooker, the temperature control layer can be arranged on the upper surface of the panel and also can be arranged on the lower surface of the panel, and when the panel is of a composite structure, the temperature control layer can also be arranged between the upper surface and the lower surface of the panel.
In this embodiment, the permalloy or precision alloy material preferably used in the embodiment has a curie point temperature of 30 to 500 degrees celsius, and more preferably a curie point temperature of 70 to 400 degrees celsius or 150 to 350 degrees celsius, and in terms of the type of precision alloy material, the following alloy materials are preferably used in this embodiment:
| type of alloy | Alloy brand | Curie point |
| Iron-manganese alloy | 4J59 | 70 |
| Constant elasticity alloy | 3J53 | 110 |
| Constant elasticity alloy | 3J53Y | 110 |
| Elastic alloy | Ni44MoTiAl | 120 |
| Constant elasticity 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 |
| Precision alloy | 4J36 | 230 |
| Precision alloy | 4J32 | 220 |
Besides the sheet structure, the temperature control layer can also be made of powdery or granular precision alloy material or permalloy material and attached to the panel, namely, the precision alloy material or the permalloy material is made into powdery or granular material and then compounded on the panel by the prior art.
The permalloy is also called an iron-nickel alloy, and the iron content is 35 to 70%, more preferably 63 to 67%, and the nickel content is 30 to 65%, more preferably 37 to 58%. The iron-nickel alloy has high magnetic permeability and suddenly drops to near vacuum permeability at the curie point.
The invention also relates to a heating control method of the induction cooker, which comprises the following steps:
s1 setting temperature value of electromagnetic heating, and recording as T0The temperature value is particularly preferably the temperature value of the temperature-control layer; because a specific corresponding relation exists between the temperature value and the current value under the action of temperature control, a certain temperature value corresponds to a specific current value, and similarly, a certain current value also corresponds to a specific temperature value, therefore, the temperature value and the current value have an equivalent alternative relation and have no equivalent alternative relationWhether the set temperature value or the current value can be reflected on the temperature value finally;
s2 detecting the electric parameter value in the electromagnetic heating coil, and recording as the electric parameter detection value P1Converting the detected value of the electrical parameter into a corresponding detected temperature value T1Alternatively, the temperature value T set in step S1 is used0Converting into corresponding electrical parameter value, and recording as electrical parameter set value P0；
S3 reaction of T1And T0+ Δ T is compared when T is1＜T0When the temperature is + delta T, the electromagnetic heating coil continues to heat, and when T is higher than the temperature1≥T0When the temperature is + delta t, the electromagnetic heating coil stops heating or reduces heating power; or
Will P1And P0The comparison is made with + deltap,
s11 when the electric parameter value is in direct proportion to the temperature value and P1＜P0When the temperature is + delta P, the electromagnetic heating coil continues to heat, and when the temperature is P1≥P0When the voltage is + delta p, the electromagnetic heating coil stops heating or reduces heating power;
s12 when the electric parameter value and the temperature value are in inverse proportion relation and P is1＞P0When the temperature is + delta P, the electromagnetic heating coil continues to heat, and when the temperature is P1≤P0At + Δ p, the electromagnetic heating coil stops heating or reduces heating power.
Preferably, in step S3, 0. ltoreq. Δ t. ltoreq.5.
Preferably, the electromagnetic parameter is current, voltage, resistance parameter or pulse signal, when the electrical parameter is current parameter, Δ p is greater than or equal to 0 and less than or equal to 0.5A, when the electrical parameter is voltage parameter, Δ p is greater than or equal to 0 and less than or equal to 50V, when the electrical parameter is resistance parameter, Δ p is greater than or equal to 0 and less than or equal to 5 Ω, and when the electrical parameter is pulse signal, Δ p is greater than or equal to 0 and less than or equal to 3.
Preferably, the induction cooker is further provided with a timing module which starts timing while the induction heating coil starts heating, and when the timing time is M1, steps S2 and S3 are performed, and according to the comparison result of step S3, if the induction heating coil satisfies the continued heating condition, the continued heating time is M2, and then steps S2 and S3 are repeatedly performed, and if the induction heating coil satisfies the continued heating condition again, the continued heating time is M2, and the above steps are repeated.
Preferably, M1 is equal to or greater than M2, such as, for example, 0.1 second equal to or less than M1 equal to or less than 600 seconds, 0.1 second equal to or less than M2 equal to or less than 300 seconds, more specifically, such as, for example, M1 equal to 600 seconds, and M2 equal to or less than 300 seconds.
Thus, the induction cooker can intensively heat at the beginning stage of heating to improve the heating efficiency.
Preferably, the heating control method of the induction cooker further comprises the step of detecting a pot.
Preferably, when step S2 is executed, the electromagnetic heating coil stops heating, that is, the detection and heating may be performed simultaneously or separately, as shown in fig. 4 and 5.
Specifically, after the induction cooker starts, the electromagnetic heating coil generates an electromagnetic signal and starts to heat the temperature control layer, the electromagnetic signal acts on the temperature control layer and is attenuated by the loss of the temperature control layer, the electrical parameters in the electromagnetic heating coil change along with the change of the temperature control layer and form a specific corresponding relationship, the electrical parameters comprise pulse number, pulse width, pulse amplitude, voltage, current or resistance parameters and the like, for example, a linear relationship is formed between the pulse number and the temperature of the temperature control layer, as shown in fig. 2 and 3, the detection and analysis module detects the electrical parameter value in the electromagnetic heating coil, converts the electrical parameter value into a corresponding temperature value, and sets a set temperature value T through a man-machine interaction interface with a user0Comparing, if the current detected temperature value T1Does not exceed the set temperature value T0The electromagnetic heating coil will continue to heat, i.e. the electromagnetic heating coil can maintain the original power and also can increase the power to heat if the temperature value T is currently detected1Greater than or equal to set temperature value T0The electromagnetic heating coil will stop heating or reduce the heating power.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (16)
1. An electromagnetic heating control system of an induction cooker, comprising:
an electromagnetic heating coil;
the detection analysis module is connected with the electromagnetic heating coil and used for detecting electrical parameters in the electromagnetic heating coil, wherein the electrical parameters are one or more of pulse quantity, pulse width, pulse amplitude, voltage, current or resistance parameters;
the input end of the control module is connected with the output end of the detection and analysis module and is used for controlling the heating power or the heating time of the electromagnetic heating coil;
the input end of the IGBT driving module is connected with the output end of the control module;
the C end of the IGBT is connected with the electromagnetic heating coil, and the G end of the IGBT is connected with the IGBT driving module;
the induction cooker heating control system also comprises a human-computer interaction interface, the human-computer interaction interface is connected with the detection analysis module,
the human-computer interaction interface is connected with the control module and transmits the temperature value input by the user to the control module;
the induction cooker also comprises a temperature control layer which can induce electromagnetic signals generated by the electromagnetic heating coil;
the temperature control layer is arranged above the electromagnetic heating coil;
the electromagnetism stove includes the panel, the accuse temperature layer is located on the panel, perhaps, the electromagnetism stove top is equipped with the pan, the accuse temperature layer is located on the pan.
2. The electromagnetic heating control system of claim 1, wherein the temperature control layer is made of a ferromagnetic or ferrimagnetic material.
3. The electromagnetic heating control system of claim 1, wherein when the temperature control layer is disposed on the panel, the temperature control layer is disposed on an upper surface of the panel or a lower surface of the panel.
4. The electromagnetic heating control system of claim 1, wherein the temperature control layer is disposed between the upper and lower surfaces of the panel when the temperature control layer is disposed on the panel and the panel is of a composite structure.
5. An electromagnetic heating control system as claimed in claim 2, wherein the temperature control layer is made of permalloy or a precision alloy material.
6. An electromagnetic heating control system according to claim 5 wherein the Curie point temperature of the permalloy or precision alloy material is between 30 and 500 degrees Celsius.
7. The electromagnetic heating control system of claim 6, wherein the precision alloy material is precision alloy 4J36, precision alloy 4J32, Ferro-Mn alloy 4J59, constant elasticity alloy 3J53, constant elasticity alloy 3J53Y, constant elasticity alloy 3J58, elasticity alloy 3J54, elasticity alloy 3J58, elasticity alloy 3J59, elasticity alloy 3J53, elasticity alloy 3J61, elasticity alloy 3J62, elasticity alloy Ni44MoTiAl, precision alloy 4J36, precision alloy 4J32 or amorphous magnetically soft alloy (FeNiCo)78(SiB)22。
8. An electromagnetic heating control system as claimed in claim 5, wherein the permalloy has an iron content of 35 to 70% and a nickel content of 30 to 65%.
9. A heating control method of an induction cooker, characterized in that the induction heating control system according to any one of claims 1 to 8 is provided, further comprising the steps of:
step S1 setting a temperature value for electromagnetic heating or electricity corresponding to the temperature valueValue of the parameter, noted as T0The temperature value is the temperature value of the temperature control layer;
step S2 detects the electric parameter value in the electromagnetic heating coil, and the electric parameter value is recorded as an electric parameter detection value P1Converting the detected value of the electrical parameter into a corresponding detected temperature value T1Alternatively, the temperature value T set in step S1 is used0Converting into corresponding electrical parameter value, and recording as electrical parameter set value P0；
Step S3 compares T1And T0+ Δ T is compared when T is1＜T0When the temperature is + delta T, the electromagnetic heating coil continues to heat, and when T is higher than the temperature1≥T0When the temperature is + delta t, the electromagnetic heating coil stops heating or reduces heating power; or
Will P1And P0The comparison is made with + deltap,
step S11 when the electric parameter value and the temperature value are in direct proportion and P is1＜P0When the temperature is + delta P, the electromagnetic heating coil continues to heat, and when the temperature is P1≥P0When the voltage is + delta p, the electromagnetic heating coil stops heating or reduces heating power;
step S12 when the electric parameter value and the temperature value are in inverse proportion and P is1＞P0When the temperature is + delta P, the electromagnetic heating coil continues to heat, and when the temperature is P1≤P0When the voltage is + delta p, the electromagnetic heating coil stops heating or reduces heating power;
both Δ t and Δ p represent threshold ranges.
10. The heating control method of the induction cooker according to claim 9, wherein Δ t is 0. ltoreq. Δ t.ltoreq.5 ℃.
11. The heating control method of the induction cooker according to claim 9, wherein the electrical parameter is a current, a voltage, a resistance parameter or a pulse signal, when the electrical parameter is a current parameter, Δ p is 0. ltoreq. Δ p.ltoreq.0.5A, when the electrical parameter is a voltage parameter, Δ p is 0. ltoreq. Δ p.ltoreq.50V, and when the electrical parameter is a resistance parameter, Δ p is 0. ltoreq. Δ p
p is less than or equal to 5 omega, and when the electrical parameter is a pulse signal, the delta p is less than or equal to 3 and less than or equal to 0.
12. The heating control method of the induction cooker according to claim 9, wherein the induction cooker is further provided with a timer module, the timer module is started to time while the induction heating coil starts heating, when the timer time is M1, steps S2 and S3 are performed, according to the comparison result of step S3, if the induction heating coil satisfies the continuous heating condition, the continuous heating time is M2, and then steps S2 and S3 are repeatedly performed, if the induction heating coil satisfies the continuous heating condition again, the continuous heating time is M2, and the above steps are repeated.
13. The heating control method of the induction cooker according to claim 12, wherein the heating of the induction heating coil is stopped when step S2 is executed.
14. The heating control method of the induction cooker according to claim 12, wherein M1 is M2 or more.
15. The heating control method of the induction cooker according to claim 14, wherein 0.1 second. ltoreq.M 1. ltoreq.600 seconds, 0.1 second. ltoreq.M 2. ltoreq.300 seconds.
16. The heating control method of the induction cooker according to claim 9, further comprising a step of detecting a pot.
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| 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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| 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 |
| CN108414110B (en) * | 2018-02-09 | 2024-12-20 | 新兴县热点智能家居科技有限公司 | Induction temperature measuring device and temperature measuring method, cooking device and electromagnetic device |
| 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 |
| CN110572893B (en) * | 2018-08-29 | 2023-02-17 | 新兴县热点智能家居科技有限公司 | Electromagnetic heating device 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 |
| CN111550835B (en) * | 2019-02-12 | 2024-06-28 | 陈景超 | Heating device with temperature measuring circuit and control method thereof |
| CN113654678B (en) * | 2020-05-12 | 2022-10-28 | 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 |
| CN120264518B (en) * | 2025-05-23 | 2025-09-19 | 渤海大学 | A vacuum induction heating temperature closed-loop control system integrated with SCADA |
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| CN107581919A (en) | 2018-01-16 |
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