CN110446284B - Electromagnetic heating equipment and temperature measuring method and device thereof - Google Patents
Electromagnetic heating equipment and temperature measuring method and device thereof Download PDFInfo
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- CN110446284B CN110446284B CN201810409171.8A CN201810409171A CN110446284B CN 110446284 B CN110446284 B CN 110446284B CN 201810409171 A CN201810409171 A CN 201810409171A CN 110446284 B CN110446284 B CN 110446284B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008859 change Effects 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 4
- 238000004861 thermometry Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 21
- 238000009529 body temperature measurement Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 12
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
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Abstract
The invention discloses electromagnetic heating equipment and a temperature measuring method and device thereof, wherein the temperature measuring method of the electromagnetic heating equipment comprises the following steps: dividing a heating area of the electromagnetic heating equipment into a plurality of areas according to different heating degrees; acquiring the temperatures of heated objects corresponding to at least two areas in the plurality of areas to obtain a plurality of temperature values; the temperature of the heated object is acquired from the plurality of temperature values. According to the temperature measuring method of the electromagnetic heating equipment, the temperatures of the heated objects are accurately obtained by simultaneously measuring the temperatures of different positions of the heated objects, so that the temperature measuring precision is greatly improved.
Description
Technical Field
The invention relates to the technical field of temperature measurement, in particular to a temperature measuring method of electromagnetic heating equipment, a temperature measuring device of the electromagnetic heating equipment and the electromagnetic heating equipment.
Background
In a conventional infrared temperature cooking appliance, a single infrared temperature measurement module is generally used to measure the temperature of an object to be heated. However, in some cases, the temperature of the measured point is greatly different due to the different positions of the heat generating sources, thereby causing inaccurate temperature measurement.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, a first object of the present invention is to provide a temperature measuring method of an electromagnetic heating apparatus, which can obtain the temperature of an object to be heated accurately by measuring the temperatures of different positions of the object to be heated at the same time, thereby greatly improving the temperature measuring accuracy.
A second object of the invention is to propose a non-transitory computer-readable storage medium.
The third purpose of the invention is to provide a temperature measuring device of electromagnetic heating equipment.
A fourth object of the present invention is to provide an electromagnetic heating apparatus.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a temperature measurement method for electromagnetic heating equipment, including the following steps: dividing a heating area of the electromagnetic heating equipment into a plurality of areas according to different heating degrees; acquiring the temperatures of heated objects corresponding to at least two areas in the plurality of areas to obtain a plurality of temperature values; the temperature of the heated object is acquired from the plurality of temperature values.
According to the temperature measuring method of the electromagnetic heating apparatus of the embodiment of the invention, the heating area of the electromagnetic heating apparatus is divided into a plurality of areas according to the heating degree, the temperatures of the heated objects corresponding to at least two areas in the plurality of areas are acquired to obtain a plurality of temperature values, and the temperatures of the heated objects are acquired according to the plurality of temperature values. Therefore, the temperature of the heated object can be accurately obtained by simultaneously measuring the temperatures of different positions of the heated object, so that the temperature measurement precision is greatly improved.
In addition, the temperature measuring method of the electromagnetic heating device according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, when the electromagnetic heating apparatus is heated by a coil disk, the plurality of regions include: the coil disc comprises a first circular area, a first annular area and a second annular area, wherein the inner diameter of the first annular area is equal to the diameter of the first circular area, the outer diameter of the first annular area is equal to the inner diameter of the second annular area, the inner diameter of the first annular area ranges from [ D1/4, D1/2], the outer diameter of the first annular area ranges from [ D1/3, 3D 1/4], and D1 is the diameter of the coil disc.
According to an embodiment of the present invention, a plurality of temperature values are obtained by acquiring the temperatures of the heated objects corresponding to the first circular region and the first annular region, and weighting the plurality of temperature values to obtain the temperature of the heated object.
According to one embodiment of the present invention, the temperature of the heated object is obtained by the following formula: temp. K1 times TEMP1+ K2 times TEMP2+ K3 times Δ T1+ K4 times Δ T2, where TEMP is the temperature of the heated object, TEMP1 is the temperature of the heated object corresponding to the first circular region, TEMP2 is the temperature of the heated object corresponding to the first circular region, Δ T1 is the temperature change rate of the heated object corresponding to the first circular region within a preset time, Δ T2 is the temperature change rate of the heated object corresponding to the first circular region within the preset time, K1, K2, K3, and K4 are preset coefficients, and K1 < K2.
According to one embodiment of the present invention, the temperatures of the heated objects corresponding to at least two of the plurality of zones are acquired by a plurality of infrared measurement modules having a one-way infrared measurement function or one infrared measurement module having a multi-way infrared measurement function.
In order to achieve the above object, a second embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the temperature measuring method of the electromagnetic heating device.
According to the non-transitory computer-readable storage medium of the embodiment of the present invention, by performing the temperature measuring method of the electromagnetic heating apparatus described above, it is possible to simultaneously measure the temperatures of different positions of the heated object to accurately obtain the temperature of the heated object, thereby greatly improving the temperature measuring accuracy.
In order to achieve the above object, a temperature measuring device for an electromagnetic heating apparatus according to an embodiment of a third aspect of the present invention includes: a first acquisition unit configured to acquire temperatures of heated objects corresponding to at least two of a plurality of regions into which a heating region of the electromagnetic heating apparatus is divided according to a difference in heating degree, to obtain a plurality of temperature values; a second acquisition unit configured to acquire the temperature of the heated object from the plurality of temperature values.
According to the temperature measuring device of the electromagnetic heating apparatus of the embodiment of the present invention, the temperatures of the heated object corresponding to at least two of the plurality of zones are acquired by the first acquiring unit to obtain the plurality of temperature values, wherein the heating zone of the electromagnetic heating apparatus is divided into the plurality of zones according to the difference in the heating degree, and the temperature of the heated object is acquired by the second acquiring unit according to the plurality of temperature values. Therefore, the temperature of the heated object can be accurately obtained by simultaneously measuring the temperatures of different positions of the heated object, so that the temperature measurement precision is greatly improved.
In addition, the temperature measuring device of the electromagnetic heating apparatus according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, when the electromagnetic heating apparatus is heated by a coil disk, the plurality of regions include: the coil disc comprises a first circular area, a first annular area and a second annular area, wherein the inner diameter of the first annular area is equal to the diameter of the first circular area, the outer diameter of the first annular area is equal to the inner diameter of the second annular area, the inner diameter of the first annular area ranges from [ D1/4, D1/2], the outer diameter of the first annular area ranges from [ D1/3, 3D 1/4], and D1 is the diameter of the coil disc.
According to an embodiment of the present invention, the first acquisition unit acquires a plurality of temperature values by acquiring the temperatures of the heated object corresponding to the first circular region and the first annular region, and the second acquisition unit performs weighting processing on the plurality of temperature values to acquire the temperature of the heated object.
According to an embodiment of the present invention, the second acquiring unit acquires the temperature of the heated object by the following formula: temp. K1 times TEMP1+ K2 times TEMP2+ K3 times Δ T1+ K4 times Δ T2, where TEMP is the temperature of the heated object, TEMP1 is the temperature of the heated object corresponding to the first circular region, TEMP2 is the temperature of the heated object corresponding to the first circular region, Δ T1 is the temperature change rate of the heated object corresponding to the first circular region within a preset time, Δ T2 is the temperature change rate of the heated object corresponding to the first circular region within the preset time, K1, K2, K3, and K4 are preset coefficients, and K1 < K2.
According to an embodiment of the present invention, the first obtaining unit is a plurality of infrared measurement modules having a single-path infrared measurement function or one infrared measurement module having a multi-path infrared measurement function.
In order to achieve the above object, a fourth aspect of the present invention provides an electromagnetic heating apparatus, which includes the temperature measuring device of the electromagnetic heating apparatus.
According to the electromagnetic heating equipment provided by the embodiment of the invention, the temperature of different positions of the heated object can be measured simultaneously by the temperature measuring device of the electromagnetic heating equipment so as to accurately obtain the temperature of the heated object, so that the temperature measuring precision is greatly improved.
Drawings
FIG. 1 is a flow chart of a method of thermometry of an electromagnetic heating apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a heating zone of an electromagnetic heating apparatus according to one embodiment of the present invention divided into a plurality of zones;
FIG. 3 is a schematic diagram of a temperature sensing point of an electromagnetic heating apparatus according to one embodiment of the present invention;
fig. 4a is a schematic view for acquiring the temperature of a heated object by 1 infrared measuring module having a 2-way infrared detection function according to an embodiment of the present invention;
FIG. 4b is a schematic diagram of the acquisition of the temperature of a heated object by 2 infrared measuring modules having a one-way infrared detecting function according to an embodiment of the present invention;
fig. 5 is a block schematic diagram of a temperature measuring device of an electromagnetic heating apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A temperature measuring method of an electromagnetic heating apparatus, a non-transitory computer-readable storage medium, a temperature measuring device of an electromagnetic heating apparatus, and an electromagnetic heating apparatus proposed according to an embodiment of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a temperature measuring method of an electromagnetic heating apparatus according to an embodiment of the present invention. As shown in fig. 1, the temperature measuring method of the electromagnetic heating apparatus according to the embodiment of the present invention may include the following steps:
s1, dividing the heating area of the electromagnetic heating device into a plurality of areas according to the heating degree.
S2, the temperatures of the heated objects corresponding to at least two of the plurality of areas are acquired to obtain a plurality of temperature values.
Specifically, in the process of controlling an electromagnetic heating device (such as an induction cooker) to heat, a coil panel and a resonance capacitor in the electromagnetic heating device can be made to resonate by controlling the state of a power switch tube in the electromagnetic heating device, the coil panel can generate a high-frequency alternating magnetic field, and under the action of the high-frequency alternating magnetic field, eddy current is generated at the bottom of an object to be heated (such as a cooker), so that the object to be heated is heated. However, in practical application, because the distribution of the magnetic force lines is different, the distribution of the magnetic force lines is most concentrated at the central position of the coil disc, the magnetic field strength is strongest, and the heating of the heated object is most concentrated at the position, so that the temperature at the position is greatly different from the temperature at other positions, that is, the distribution of the magnetic force lines is denser, the temperature of the heated object at the position is higher, and at this time, if only a single infrared temperature measuring module is adopted to measure the temperature of a certain position of the heated object, the measurement result has a great error with the current actual temperature of the heated object.
Therefore, in the embodiment of the present invention, the heating area of the electromagnetic heating apparatus may be divided into a plurality of areas according to the density of the distribution of the magnetic lines of force, that is, the degree of heating the heated object, and the temperatures of the heated object corresponding to at least two areas of the plurality of areas may be simultaneously acquired to obtain a plurality of temperature values, and then the temperature of the heated object may be accurately acquired according to the plurality of temperature values.
According to an embodiment of the present invention, as shown in fig. 2, when the electromagnetic heating apparatus performs heating by the coil disk, the plurality of regions include: the coil comprises a first circular area, a first annular area and a second annular area, wherein the inner diameter D3 of the first annular area is equal to the diameter of the first circular area, the outer diameter D2 of the first annular area is equal to the inner diameter of the second annular area, the inner diameter D3 of the first annular area is in the range of [ D1/4, D1/2], the outer diameter D2 of the first annular area is in the range of [ D1/3, 3D 1/4], and D1 is the diameter of the coil disc.
Specifically, as shown in fig. 2, when the electromagnetic heating device heats through the circular coil panel, according to the difference of the heating degree, the heating area of the electromagnetic heating device can be divided into a first circular area, a first annular area and a second annular area, wherein the magnetic field intensity of the first annular area is strongest, so that the heating of the area is most concentrated, and the temperature of the pot at the position is highest. Assuming that the diameter of the coil disk is D1, the outer diameter D2 and the inner diameter D3 of the first annular region satisfy the following relations, respectively: d1/3 is not less than D2 is not less than 3 × D1/4, D1/4 is not less than D3 is not less than D1/2. In order to be able to accurately acquire the temperature of the heated object, temperature sensing points may be provided in at least two of the above three areas, for example, as shown in fig. 3, temperature sensing points may be provided at the center of the first circular area (i.e., at the center of the heating area) and in the first annular area where heat generation concentrates, respectively, and then the temperature of the heated object may be acquired through the two temperature sensing points to obtain two temperature values, so as to acquire the temperature of the heated object from the two temperature values, whereby the accuracy of temperature measurement may be effectively ensured.
It should be noted that, in the above example, a circular coil disc is taken as an example for explanation, but in practical application, the shape of the coil disc is not all circular, or may be elliptical, and the specific shape is not limited here, and for division of the heating area and arrangement of the temperature detection points, the thinner the area division is, the more the temperature detection points are arranged, the higher the accuracy of the obtained temperature value is, but at the same time, the hardware cost is increased.
In some embodiments of the present invention, the temperatures of the heated objects corresponding to at least two of the plurality of zones may be obtained by a plurality of infrared measurement modules having a single-pass infrared measurement function or one infrared measurement module having a multi-pass infrared measurement function.
That is, the temperature of the heated object corresponding to at least two of the plurality of zones can be obtained by using the multi-channel temperature measurement system instead of the existing single infrared measurement module or directly using the plurality of existing single infrared measurement modules, so as to obtain the plurality of temperature values. For example, as shown in fig. 4a, two temperature measurement systems may be integrated on a single infrared measurement module, and the two temperature measurement systems respectively detect the temperatures at the center of the first circular area and in the first annular area where heat is concentrated, so as to obtain two temperature values; as shown in fig. 4b, the temperature at the center of the first circular area and in the first annular area where heat generation is concentrated shown in fig. 3 may be detected by two independent infrared measurement modules, respectively, to obtain two temperature values. In practical application, which mode is specifically selected can be selected according to actual needs.
S3, the temperature of the object to be heated is acquired from the plurality of temperature values.
Specifically, after obtaining a plurality of temperature values, the plurality of temperature values may be subjected to weighting processing to obtain the temperature of the heated object.
According to an embodiment of the present invention, as shown in fig. 3, the temperature of the heated object may be obtained by obtaining the temperatures of the heated object corresponding to the first circular region and the first annular region to obtain a plurality of temperature values, and performing weighting processing on the plurality of temperature values to obtain the temperature of the heated object.
Specifically, the temperature of the heated object can be obtained by the following formula (1):
TEMP＝K1*TEMP1+K2*TEMP2+K3*ΔT1+K4*ΔT2 (1)
the temperature of the heated object is TEMP, TEMP1 is the temperature of the heated object corresponding to the first circular region, TEMP2 is the temperature of the heated object corresponding to the first annular region, Δ T1 is the temperature change rate of the heated object corresponding to the first circular region within a preset time, Δ T2 is the temperature change rate of the heated object corresponding to the first annular region within the preset time, the value range of the preset time is 3s to 20s, preferably, the preset time is 5s, K1, K2, K3 and K4 are preset coefficients, and K1 is less than K2, and the preset coefficients K1, K2, K3 and K4 can be obtained in advance through a large number of experimental tests, for example, the preset coefficients K1, K2, K3 and K4 can be 0.4, 0.6, 0.2 and 0.2, respectively.
It can be understood that the first annular region is a main heat generating region, the temperature rises relatively fast, the weight of the corresponding temperature is relatively large, while the first annular region is a conductive temperature region, the temperature rise is relatively delayed, and the weight of the corresponding temperature is relatively small, so when calculating the temperature of the heated object, the temperature change rates of the first annular region and the first annular region should be considered at the same time, that is, in the present invention, the temperature TEMP of the heated object can be obtained from the temperature TEMP1 and the temperature change rate Δ T1 of the heated object corresponding to the first annular region and the temperature TEMP2 and the temperature change rate Δ T2 of the heated object corresponding to the first annular region, and the TEMP becomes F (TEMP1, TEMP2, Δ T1, Δ T2).
In practical application, as shown in fig. 4a, the infrared temperature measurement module may respectively and simultaneously detect the temperature TEMP1 at the center of the first circular region and the temperature TEMP2 in the first annular region shown in fig. 3 through two temperature measurement systems, and simultaneously obtain the temperature change rate Δ T1 of the first circular region and the temperature change rate Δ T2 of the first annular region within a preset time (e.g., 5s), and calculate the temperature of the heated object according to the above formula (1) from TEMP1, Δ T1, TEMP2, and Δ T2, and send the result to the main control unit.
As shown in fig. 4b, the temperature TEMP1 at the center of the first circular area shown in fig. 3 may be detected by one independent infrared measuring module and transmitted to the main control unit, and at the same time, the temperature TEMP2 in the first circular area shown in fig. 3 may be detected by another independent infrared measuring module and transmitted to the main control unit, and the main control unit simultaneously obtains the temperature change rate Δ T1 of the first circular area and the temperature change rate Δ T2 of the first circular area for a preset time (e.g., 5s) according to the detection results, and calculates the temperature of the heated object according to the above formula (1) from TEMP1, Δ T1, TEMP2 and Δ T2.
Therefore, the temperature of the heated object corresponding to at least two areas in the plurality of areas is obtained to obtain the temperature values of the heated object at different positions, and the temperature values of the heated object at different positions are weighted to obtain the temperature of the heated object, so that the temperature measurement precision is greatly improved, and the reliability is high.
In summary, according to the temperature measuring method of the electromagnetic heating apparatus of the embodiment of the present invention, the heating area of the electromagnetic heating apparatus is divided into a plurality of areas according to the heating degree, the temperatures of the heated objects corresponding to at least two areas of the plurality of areas are acquired to obtain a plurality of temperature values, and the temperatures of the heated objects are acquired according to the plurality of temperature values. Therefore, the temperature of the heated object can be accurately obtained by simultaneously measuring the temperatures of different positions of the heated object, so that the temperature measurement precision is greatly improved.
In addition, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the temperature measuring method of the electromagnetic heating apparatus described above.
According to the non-transitory computer-readable storage medium of the embodiment of the present invention, by performing the temperature measuring method of the electromagnetic heating apparatus described above, it is possible to simultaneously measure the temperatures of different positions of the heated object to accurately obtain the temperature of the heated object, thereby greatly improving the temperature measuring accuracy.
Fig. 5 is a block schematic diagram of a temperature measuring device of an electromagnetic heating apparatus according to an embodiment of the present invention. As shown in fig. 5, the temperature measuring device of the electromagnetic heating apparatus according to the embodiment of the present invention includes: a first acquisition unit 100 and a second acquisition unit 200.
The first acquiring unit 100 is configured to acquire temperatures of heated objects corresponding to at least two areas of a plurality of areas to obtain a plurality of temperature values, wherein a heating area of the electromagnetic heating apparatus is divided into the plurality of areas according to a heating degree; the second acquisition unit 200 is used to acquire the temperature of the heated object from the plurality of temperature values.
According to an embodiment of the present invention, when the electromagnetic heating apparatus performs heating by the coil disk, the plurality of regions include: the coil disc comprises a first circular area, a first annular area and a second annular area, wherein the inner diameter of the first annular area is equal to the diameter of the first circular area, the outer diameter of the first annular area is equal to the inner diameter of the second annular area, the inner diameter of the first annular area ranges from [ D1/4, D1/2], the outer diameter of the first annular area ranges from [ D1/3, 3X D1/4], and D1 is the diameter of the coil disc.
Further, the first acquisition unit 100 acquires a plurality of temperature values by acquiring the temperatures of the heated object corresponding to the first circular region and the first annular region, and the second acquisition unit 200 performs weighting processing on the plurality of temperature values to acquire the temperature of the heated object.
Specifically, the second acquisition unit 200 acquires the temperature of the heated object by the following equation: temp. K1 temp. 1+ K2 temp. 2+ K3 Δ T1+ K4 Δ T2, where temp. is the temperature of the object to be heated, temp. 1 is the temperature of the object to be heated corresponding to the first circular region, temp. 2 is the temperature of the object to be heated corresponding to the first annular region, Δ T1 is the temperature change rate of the object to be heated corresponding to the first circular region within a preset time, Δ T2 is the temperature change rate of the object to be heated corresponding to the first annular region within a preset time, K1, K2, K3 and K4 are preset coefficients, and K1 < K2.
According to an embodiment of the present invention, the first obtaining unit 100 is a plurality of infrared measurement modules having a single-path infrared measurement function or one infrared measurement module having a multi-path infrared measurement function.
It should be noted that, details that are not disclosed in the temperature measuring device of the electromagnetic heating apparatus according to the embodiment of the present invention refer to details that are disclosed in the temperature measuring method of the electromagnetic heating apparatus according to the embodiment of the present invention, and detailed descriptions thereof are omitted here.
According to the temperature measuring device of the electromagnetic heating apparatus of the embodiment of the present invention, the temperatures of the heated object corresponding to at least two of the plurality of zones are acquired by the first acquiring unit to obtain the plurality of temperature values, wherein the heating zone of the electromagnetic heating apparatus is divided into the plurality of zones according to the difference in the heating degree, and the temperature of the heated object is acquired by the second acquiring unit according to the plurality of temperature values. Therefore, the temperature of the heated object can be accurately obtained by simultaneously measuring the temperatures of different positions of the heated object, so that the temperature measurement precision is greatly improved.
In addition, the embodiment of the invention also provides electromagnetic heating equipment which comprises the temperature measuring device of the electromagnetic heating equipment.
According to the electromagnetic heating equipment provided by the embodiment of the invention, the temperature of different positions of the heated object can be measured simultaneously by the temperature measuring device of the electromagnetic heating equipment so as to accurately obtain the temperature of the heated object, so that the temperature measuring precision is greatly improved.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In addition, in the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A temperature measuring method of electromagnetic heating equipment is characterized by comprising the following steps:
dividing a heating area of the electromagnetic heating equipment into a plurality of areas according to different heating degrees;
acquiring the temperatures of heated objects corresponding to at least two areas in the plurality of areas to obtain a plurality of temperature values;
acquiring the temperature of the heated object according to the plurality of temperature values; wherein when the electromagnetic heating apparatus is heated by a coil disk, the plurality of regions include: a first circular area, a first annular area and a second annular area, wherein the inner diameter of the first annular area is equal to the diameter of the first circular area, the outer diameter of the first annular area is equal to the inner diameter of the second annular area, the inner diameter of the first annular area is in the range of [ D1/4, D1/2], the outer diameter of the first annular area is in the range of [ D1/3, 3D 1/4], and D1 is the diameter of the coil disc;
obtaining a plurality of temperature values by obtaining the temperatures of the heated objects corresponding to the first circular area and the first annular area, and performing weighting processing on the plurality of temperature values to obtain the temperatures of the heated objects;
the temperature of the heated object is obtained by the following formula: temp. K1 times TEMP1+ K2 times TEMP2+ K3 times Δ T1+ K4 times Δ T2, where TEMP is the temperature of the heated object, TEMP1 is the temperature of the heated object corresponding to the first circular region, TEMP2 is the temperature of the heated object corresponding to the first circular region, Δ T1 is the temperature change rate of the heated object corresponding to the first circular region within a preset time, Δ T2 is the temperature change rate of the heated object corresponding to the first circular region within the preset time, K1, K2, K3, and K4 are preset coefficients, and K1 < K2.
2. The temperature measuring method of an electromagnetic heating apparatus according to claim 1, wherein the temperatures of the heated objects corresponding to at least two of the plurality of zones are obtained by a plurality of infrared measuring modules having a one-way infrared measuring function or one infrared measuring module having a multi-way infrared measuring function.
3. A non-transitory computer-readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements a method for thermometry of an electromagnetic heating apparatus according to any one of claims 1-2.
4. A temperature measuring device of electromagnetic heating equipment is characterized by comprising:
a first acquisition unit configured to acquire temperatures of heated objects corresponding to at least two of a plurality of regions into which a heating region of the electromagnetic heating apparatus is divided according to a difference in heating degree, to obtain a plurality of temperature values;
a second acquisition unit configured to acquire the temperature of the heated object from the plurality of temperature values;
wherein when the electromagnetic heating apparatus is heated by a coil disk, the plurality of regions include: a first circular area, a first annular area and a second annular area, wherein the inner diameter of the first annular area is equal to the diameter of the first circular area, the outer diameter of the first annular area is equal to the inner diameter of the second annular area, the inner diameter of the first annular area is in the range of [ D1/4, D1/2], the outer diameter of the first annular area is in the range of [ D1/3, 3D 1/4], and D1 is the diameter of the coil disc; the first acquisition unit acquires a plurality of temperature values by acquiring the temperatures of the heated object corresponding to the first circular region and the first annular region, and the second acquisition unit performs weighting processing on the plurality of temperature values to acquire the temperature of the heated object; the second acquiring unit acquires the temperature of the heated object by the following formula: temp. K1 times TEMP1+ K2 times TEMP2+ K3 times Δ T1+ K4 times Δ T2, where TEMP is the temperature of the heated object, TEMP1 is the temperature of the heated object corresponding to the first circular region, TEMP2 is the temperature of the heated object corresponding to the first circular region, Δ T1 is the temperature change rate of the heated object corresponding to the first circular region within a preset time, Δ T2 is the temperature change rate of the heated object corresponding to the first circular region within the preset time, K1, K2, K3, and K4 are preset coefficients, and K1 < K2.
5. The temperature measuring apparatus of electromagnetic heating equipment according to claim 4, wherein the first acquiring unit is a plurality of infrared measuring modules having a single-path infrared measuring function or one infrared measuring module having a multi-path infrared measuring function.
6. An electromagnetic heating apparatus, characterized by comprising the temperature measuring device of the electromagnetic heating apparatus according to any one of claims 4 to 5.
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