Microwave heating control method, microwave heating device, and computer storage medium

By introducing a temperature measuring mechanism and a control mechanism into the microwave heating device, the heating power is adjusted in real time, and the problem of low microwave heating efficiency in the prior art is solved, and a more efficient microwave heating effect is achieved.

CN115325577BActive Publication Date: 2025-06-06GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202210875527.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-22
Publication Date
2025-06-06
Estimated Expiration
2042-07-22

AI Technical Summary

Technical Problem

The existing microwave heating devices cannot finely control the microwave output power based on the heated object, resulting in waste of microwave energy and low heating efficiency.

Method used

A microwave heating device is designed, including a microwave mechanism, a temperature measurement mechanism and a control mechanism. The temperature of the heated object is measured in real time by the temperature measuring mechanism, and the heating power of the microwave mechanism is adjusted according to the preset heating temperature curve, so as to achieve fine heating of the heated object.

Benefits of technology

By finely adjusting the heating power, the waste of microwave energy is reduced, and the efficiency and effect of microwave heating is improved, so that the actual heating temperature curve of the heated object is more in line with the preset ideal heating temperature curve.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115325577B_ABST
    Figure CN115325577B_ABST
Patent Text Reader

Abstract

The present application discloses a microwave heating control method, a microwave heating device, and a computer storage medium. The microwave heating device includes: a microwave mechanism for performing microwave heating on a heated object; a temperature measuring mechanism for measuring the temperature of the heated object; a control mechanism, which is respectively connected to the microwave mechanism and the temperature measuring mechanism, and is used to determine the heating temperature curve of the heated object based on the information of the heated object; the control mechanism is also used to control the microwave mechanism to perform microwave heating on the heated object, and control the temperature measuring mechanism to measure the temperature of the heated object during the microwave heating of the heated object, and the control mechanism is also used to obtain the heating time corresponding to the temperature; the control mechanism is also used to match the temperature and the heating time with the heating temperature curve, and adjust the heating power of the heated object for microwave heating based on the matching result. In this way, the waste of microwave energy can be reduced, the microwave heating effect can be improved, and the efficiency of microwave heating can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of microwave heating, and in particular to a microwave heating control method, a microwave heating device, and a computer storage medium. Background Art

[0002] Existing microwave heating devices, such as microwave ovens, use magnetrons to emit microwaves for microwave heating. Such microwave ovens are divided into two types: fixed-frequency microwave ovens and variable-frequency microwave ovens; among them, the output power of fixed-frequency microwave ovens has only two gears: full power and no power, while the output power of variable-frequency microwave ovens can achieve multiple power levels.

[0003] However, whether it is a fixed-frequency microwave oven or a variable-frequency microwave oven, it is impossible to perform fine control of the microwave output power based on the conditions of the heated object, resulting in waste of microwave energy and poor heating effect, and low microwave heating efficiency. Summary of the invention

[0004] The present application provides a microwave heating control method, a microwave heating device, and a computer storage medium to improve microwave heating efficiency.

[0005] In order to solve the above technical problems, the present application proposes a microwave heating device. The microwave heating device includes: a microwave mechanism for performing microwave heating on a heated object; a temperature measuring mechanism for measuring the temperature of the heated object; a control mechanism connected to the microwave mechanism and the temperature measuring mechanism respectively, and used to determine the heating temperature curve of the heated object based on the information of the heated object; the control mechanism is also used to control the microwave mechanism to perform microwave heating on the heated object, and control the temperature measuring mechanism to measure the temperature of the heated object during the microwave heating of the heated object, and the control mechanism is also used to obtain the heating time corresponding to the temperature; the control mechanism is also used to match the temperature and the heating time with the heating temperature curve, and adjust the heating power of the microwave heating of the heated object based on the matching result.

[0006] In order to solve the above technical problems, the present application proposes a microwave heating control method. The microwave heating control method comprises: determining a preset heating temperature curve of the heated object based on information of the heated object; obtaining the temperature of the heated object and the heating time corresponding to the temperature during microwave heating of the heated object; matching the temperature and heating time with the preset heating temperature curve, and adjusting the heating power of the microwave heating of the heated object based on the matching result.

[0007] In order to solve the above technical problems, the present application proposes a computer storage medium having program instructions stored thereon, and the above microwave heating control method is implemented when the program instructions are executed by a processor.

[0008] Different from the prior art: the microwave heating control device of the present application uses a temperature measuring mechanism to measure the temperature of the heated object during the microwave heating process, and uses a control mechanism to match the temperature and heating time of the heated object during the microwave heating process with a preset heating temperature curve of the heated object, and adjusts the heating power of the microwave heating of the heated object based on the matching result, so that the actual heating temperature curve of the heated object is more consistent with its preset heating temperature curve, that is, more consistent with the preset, or ideal heating temperature curve, which can reduce the waste of microwave energy and improve the microwave heating effect, and can improve the efficiency of microwave heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0010] Figure 1 It is a flow chart of an embodiment of the microwave heating control method of the present application;

[0011] Figure 2 yes Figure 1 A specific flow chart of step S12 in the embodiment;

[0012] Figure 3 yes Figure 1 A specific flow chart of step S13 in the embodiment;

[0013] Figure 4 yes Figure 3 A specific flow chart of step S33 in the embodiment;

[0014] Figure 5 It is a schematic diagram of a flow chart of an embodiment of a microwave heating control method of the present application;

[0015] Figure 6 It is a structural schematic diagram of an embodiment of the microwave heating device of the present application;

[0016] Figure 7 yes Figure 6 Schematic diagram of the working process of the embodiment;

[0017] Figure 8 It is a structural diagram of an embodiment of a computer storage medium of the present application. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present application.

[0019] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0020] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0022] The microwave heating control method, microwave heating device and computer storage medium provided by the present application are described in detail below in conjunction with the embodiments.

[0023] This application first proposes a microwave heating control method for a microwave heating device, such as Figure 1 As shown, Figure 11 is a flow chart of an embodiment of the microwave heating control method of the present application. The microwave heating control method of this embodiment specifically comprises the following steps:

[0024] Step S11: determining a preset heating temperature curve of the object to be heated based on the information of the object to be heated.

[0025] The information of the heated object may include information such as the type and / or weight of the heated object. Since different types of heated objects have different heating rates and required heating temperatures during the heating process, and the same type of heated objects of different weights have different heating rates during the heating process, this embodiment may set different preset heating temperature curves for heated objects of different types and / or different weights, so that the heating power of microwave heating of the heated object, i.e., the heating power of the microwave mechanism in the microwave heating device, can be adjusted later according to the preset heating temperature curve corresponding to the type and / or weight of the heated object.

[0026] Optionally, before executing step S11, information about the object to be heated may also be obtained; for example, the type of the object to be heated may be obtained through an image recognition mechanism of the microwave heating device, and the weight of the object to be heated may be obtained through a pressure sensor of the microwave heating device. Of course, in other embodiments, the microwave heating device may also directly obtain information such as the type and / or weight of the object to be heated through an input mechanism.

[0027] The control mechanism of the microwave heating device obtains information of the object to be heated, and obtains a preset heating temperature curve corresponding to the information of the object to be heated from a plurality of preset heating temperature curves as a preset heating temperature curve for the object to be heated.

[0028] Step S12: in the process of heating the object with microwaves, obtaining the temperature of the object and the heating time corresponding to the temperature.

[0029] The control mechanism controls the microwave mechanism of the microwave heating device to generate microwaves so as to perform microwave heating on the object to be heated.

[0030] Among them, the microwave mechanism of this embodiment is a microwave solid-state source, which includes a controller and a signal generator connected to the controller. The controller is also connected to the control mechanism. The controller generates a heating instruction under the control of the control mechanism, and the signal generator generates a microwave signal based on the heating instruction to heat the heated object.

[0031] The microwave heating device of this embodiment uses a microwave solid-state source to generate a microwave signal, which can achieve stepless frequency modulation, so that each working frequency band of the microwave heating device can be smoothly adjusted. For example, the difference between the frequency bands of adjacent gears of a microwave heating device such as a microwave oven is small. This embodiment uses a microwave solid-state source to control the output power of the microwave signal, which can achieve the adjustment between these frequency bands with small differences.

[0032] A detailed introduction to the microwave heating device and its microwave solid-state source can be found below.

[0033] In other embodiments, the execution order of the control mechanism acquiring the preset heating temperature curve of the object to be heated and the execution order of the control mechanism controlling the microwave mechanism to heat the object to be heated may not be limited.

[0034] When the control mechanism controls the microwave mechanism to start performing microwave heating on the object to be heated, the control mechanism controls the timer to start timing to obtain the heating time of the microwave heating on the object to be heated.

[0035] In the process of microwave heating of the object by the microwave mechanism, the control mechanism controls the temperature measuring mechanism of the microwave device to obtain the temperature of the object to be heated, and obtains the heating time corresponding to the acquisition time of the temperature (i.e., the timing time ending at the sampling time). The temperature may be the surface temperature of the object to be heated, such as the temperature of a certain point on the surface of the object to be heated, or the weighted value of the temperature of multiple points on the surface of the object to be heated, and the weight coefficients of the temperatures of the multiple points may be the same or different. In other embodiments, the temperature may also be the internal temperature of the object to be heated, etc.

[0036] Alternatively, one can Figure 2 The method shown implements step S12, and the method of this embodiment includes step S21 and step S22.

[0037] Step S21: in the process of performing microwave heating on the object to be heated, the current temperature and the current heating time of the object to be heated corresponding to the current sampling moment are obtained.

[0038] During the entire microwave heating process, the control mechanism controls the temperature measuring mechanism to obtain the temperature of the heated object at a series of sampling moments, and obtains the heating time corresponding to each sampling moment.

[0039] The temperature of the heated object obtained by the control mechanism at the current sampling time is the current temperature, and the heating time corresponding to the current sampling time, that is, the time between the start time of heating by the microwave mechanism and the current sampling time is the current heating time.

[0040] Step S22: Obtain the previous temperature and the previous heating time of the heated object corresponding to the previous sampling time of the current sampling time.

[0041] The temperature of the heated object obtained by the control mechanism at the sampling moment before the current sampling moment is the previous temperature, and the heating time corresponding to the previous sampling moment, that is, the time between the start time of heating by the microwave mechanism and the previous sampling moment is the previous heating time.

[0042] The previous temperature of the heated object and the previous heating time corresponding to the previous sampling moment before the current sampling moment have been collected and generated at the previous sampling moment. The acquisition of these information in step S22 refers to the control mechanism acquiring these information from the memory to perform the following related calculations.

[0043] Step S13: matching the temperature and heating time with a preset heating temperature curve, and adjusting the heating power of the microwave heating of the object to be heated based on the matching result.

[0044] The control mechanism matches the temperature of the heated object and the corresponding heating time with the preset heating temperature curve of the heated object, and adjusts the heating power of the microwave heating of the heated object based on the matching result to adjust the heating temperature of the heated object so that the actual heating temperature curve of the heated object is more consistent with its preset heating temperature curve.

[0045] This embodiment uses the matching result between the temperature and heating time of the object to be heated during microwave heating and the preset heating temperature curve of the object to be heated to adjust the heating power of the object to be heated with microwave, so that the actual heating temperature curve of the object to be heated is more consistent with its preset heating temperature curve, that is, more consistent with the preset, or ideal heating temperature curve, which can reduce the waste of microwave energy and improve the microwave heating effect, thereby improving the efficiency of microwave heating.

[0046] Alternatively, one can Figure 3 The method shown implements step S13, and the method of this embodiment includes steps S31 to S33.

[0047] Step S31: Calculate the current temperature change rate of the heated object based on the temperature and heating time.

[0048] This embodiment can calculate the current temperature change rate of the object to be heated based on the current temperature, the previous temperature, the current heating time and the previous heating time of the object to be heated. Specifically, the current temperature change rate is the ratio of the difference between the current temperature and the previous temperature to the difference between the current heating time and the previous heating time.

[0049] Step S32: Calculating a preset temperature change rate corresponding to the heating duration based on a preset heating temperature curve.

[0050] Specifically, the current preset temperature corresponding to the current heating time and the previous preset temperature corresponding to the previous heating time can be obtained from the preset heating temperature curve, and then the ratio of the difference between the current preset temperature and the previous preset temperature to the difference between the current heating time and the previous heating time is calculated as the preset temperature change rate.

[0051] Step S33: Match the current temperature change rate with the preset temperature change rate, and adjust the heating power of the microwave heating based on the matching result.

[0052] Optionally, in response to the current temperature change rate being greater than the preset temperature change rate, the heating power for microwave heating of the object to be heated is reduced; in response to the current temperature change rate being less than the preset temperature change rate, the heating power for microwave heating of the object to be heated is increased.

[0053] If the current temperature change rate of the heated object is greater than the preset temperature change rate, it can be considered that the current temperature rise of the heated object is too fast, and the control mechanism reduces the heating power of the microwave mechanism to reduce the heating power of the microwave heating of the heated object, thereby reducing the temperature rise rate of the heated object; if the current temperature change rate of the heated object is less than the preset temperature change rate, it can be considered that the current temperature rise of the heated object is too slow, and the control mechanism increases the heating power of the microwave mechanism to increase the heating power of the microwave heating of the heated object, thereby increasing the temperature rise rate of the heated object; if the current temperature change rate of the heated object is equal to the preset temperature change rate, it can be considered that the current temperature rise of the heated object is moderate, and the control mechanism does not need to adjust the heating power of the microwave mechanism; in this way, the actual heating temperature curve of the heated object can be made to be more consistent with its preset heating temperature curve.

[0054] In another embodiment, the Figure 4 The method shown implements step S33, and the method of this embodiment includes steps S41 to S43.

[0055] Step S41: Calculate the difference between the current temperature change rate and the preset temperature change rate.

[0056] Step S42: In response to the difference being greater than a first preset difference, reducing the heating power for microwave heating of the object to be heated; wherein the first preset difference is greater than zero.

[0057] Step S43: In response to the difference being less than a second preset difference, increasing the heating power for microwave heating of the object to be heated; wherein the second preset difference is less than zero.

[0058] If the difference between the current temperature change rate of the heated object and the preset temperature change rate is greater than the first preset difference, it can be considered that the current temperature rise of the heated object is too fast, and the control mechanism reduces the heating power of the microwave mechanism to reduce the heating power of the microwave heating of the heated object, thereby reducing the temperature rise rate of the heated object; if the difference between the current temperature change rate of the heated object and the preset temperature change rate is less than the second preset difference, it can be considered that the current temperature rise of the heated object is too slow, and the control mechanism increases the heating power of the microwave mechanism to increase the heating power of the microwave heating of the heated object, thereby increasing the temperature rise rate of the heated object; if the difference between the current temperature change rate of the heated object and the preset temperature change rate is greater than or equal to the second preset difference, or less than or equal to the first preset difference, it can be considered that the current temperature rise of the heated object is moderate, and the control mechanism does not need to adjust the heating power of the microwave mechanism; in this way, the actual heating temperature curve of the heated object can be made to be more consistent with its preset heating temperature curve.

[0059] In this embodiment, a margin design is performed on the temperature change rate, that is, the above-mentioned difference, which can improve the problem of frequent adjustment of output power.

[0060] The present application further proposes another embodiment of a microwave heating control method, such as Figure 5 As shown, Figure 5 1 is a flow chart of an embodiment of the microwave heating control method of the present application. The microwave heating control method of this embodiment specifically comprises the following steps:

[0061] Step S51: determining a preset heating temperature curve of the object to be heated based on the information of the object to be heated.

[0062] The specific implementation manner can refer to the above embodiments.

[0063] Step S52: in the process of heating the object with microwaves, obtaining the temperature of the object and the heating time corresponding to the temperature.

[0064] The specific implementation manner can refer to the above embodiments.

[0065] Step S53: Matching the temperature and heating time with a preset heating temperature curve, and adjusting the heating power of the microwave heating of the object to be heated based on the matching result.

[0066] The specific implementation manner can refer to the above embodiments.

[0067] Step S54: obtaining the actual output power of microwave heating of the object to be heated.

[0068] The control mechanism controls the power detection circuit of the microwave heating device to obtain the actual output power of the microwave mechanism.

[0069] Step S55: Match the actual output power with the heating power, and adjust the heating power based on the matching result.

[0070] Due to the existence of various interference factors, the heating power of the microwave mechanism controlled by the control mechanism may deviate to a certain extent from the actual output power of the microwave mechanism. Therefore, in order to reduce the deviation, the present embodiment obtains the actual output power of the microwave mechanism, and adjusts the heating power of the microwave mechanism based on the matching result between the actual output power and the heating power of the microwave mechanism controlled by the control mechanism, so that the actual output power of the microwave mechanism is consistent with the heating power of the microwave mechanism.

[0071] Specifically, in response to the actual output power being greater than the heating power, the heating power is reduced; in response to the actual output power being less than the heating power, the heating power is increased.

[0072] If the actual output power of the microwave mechanism is greater than the heating power, it can be considered that there are interference factors causing the actual output power of the microwave mechanism to be too large, and the control mechanism reduces the heating power of the microwave mechanism to reduce the actual output power of the microwave mechanism; if the actual output power of the microwave mechanism is less than the heating power, it can be considered that there are interference factors causing the actual output power of the microwave mechanism to be too small, and the control mechanism increases the heating power of the microwave mechanism to increase the actual output power of the microwave mechanism; if the actual output power of the microwave mechanism is equal to the heating power, it can be considered that the actual output power of the microwave mechanism has no deviation, and the control mechanism does not adjust the heating power of the microwave mechanism.

[0073] In other embodiments, the execution order of the power detection circuit acquiring the actual output power of the microwave mechanism and the temperature detection mechanism acquiring the temperature of the heated object is not limited.

[0074] The present application further proposes a microwave heating device, such as Figure 6 As shown, Figure 6 1 is a schematic diagram of the structure of an embodiment of the microwave heating device of the present application. The microwave heating device of this embodiment (not shown) includes: a microwave mechanism 61, a temperature measuring mechanism 62 and a control mechanism 63; wherein the microwave mechanism 61 is used to perform microwave heating on the object to be heated; the temperature measuring mechanism 62 is used to measure the temperature of the object to be heated; the control mechanism 63 is connected to the microwave mechanism 61 and the temperature measuring mechanism 62 respectively, and is used to determine the heating temperature curve of the object to be heated based on the information of the object to be heated; the control mechanism 63 is also used to control the microwave mechanism to perform microwave heating on the object to be heated, and control the temperature measuring mechanism 62 to measure the temperature of the object to be heated during the process of performing microwave heating on the object to be heated, and the control mechanism 63 is also used to obtain the heating time corresponding to the temperature; the control mechanism 63 is also used to match the temperature and the heating time with the heating temperature curve, and adjust the heating power of the object to be heated by microwave heating based on the matching result.

[0075] The information of the heated object may include information such as the type and / or weight of the heated object. Since different types of heated objects have different heating rates and required heating temperatures during the heating process, and the same type of heated objects of different weights have different heating rates during the heating process, the present embodiment may set different preset heating temperature curves for different types and / or different weights of heated objects, so that the heating power of microwave heating of the heated object, i.e., the heating power of the microwave mechanism 61, can be adjusted according to the preset heating temperature curve corresponding to the type and / or weight of the heated object. The control mechanism 63 controls the microwave mechanism 61 to generate microwaves so as to perform microwave heating on the heated object.

[0076] The control mechanism 63 obtains information of the object to be heated, and obtains a preset heating temperature curve corresponding to the information of the object to be heated from a plurality of preset heating temperature curves as a preset heating temperature curve for the object to be heated.

[0077] During the microwave heating of the object by the microwave mechanism 61, the control mechanism 63 controls the temperature measuring mechanism 62 to obtain the temperature of the object to be heated, and obtains the heating time corresponding to the acquisition time of the temperature (i.e., the timing time ending at the sampling time). The temperature may be the surface temperature of the object to be heated, such as the temperature of a certain point on the surface of the object to be heated, or the weighted value of the temperatures of multiple points on the surface of the object to be heated, and the weight coefficients of the temperatures of the multiple points may be the same or different. In other embodiments, the temperature may also be the internal temperature of the object to be heated, etc.

[0078] The microwave heating device of this embodiment is provided with a heating chamber 64, in which the object to be heated is placed, and the microwave mechanism 61 is connected to the heating chamber 64 to transmit the microwave signal to the heating chamber 64, so as to perform microwave heating on the object to be heated in the heating chamber 64; wherein the temperature measuring mechanism is arranged in the heating chamber 64, for obtaining the temperature of the object to be heated in the heating chamber 64, or obtaining the temperature in the heating chamber 64 as the temperature of the object to be heated, and so on.

[0079] This embodiment uses the matching result between the temperature and heating time of the object to be heated during microwave heating and the preset heating temperature curve of the object to be heated to adjust the heating power of the object to be heated with microwave, so that the actual heating temperature curve of the object to be heated is more consistent with its preset heating temperature curve, that is, more consistent with the preset, or ideal heating temperature curve, which can reduce the waste of microwave energy and improve the microwave heating effect, and can improve the efficiency of microwave heating.

[0080] Optionally, the microwave heating device of this embodiment further includes a timer (not shown). When the control mechanism 63 controls the microwave mechanism 61 to start microwave heating of the object to be heated, the control timer starts timing to obtain the heating time of the microwave heating of the object to be heated.

[0081] Optionally, the microwave heating device of this embodiment further includes an input mechanism 65, which is connected to the control mechanism 63 and is used to obtain information about the object to be heated. For example, the input mechanism 65 includes an image recognition mechanism (not shown) and / or a pressure sensor (not shown), etc. The control mechanism 63 can control the image recognition mechanism to obtain the type of the object to be heated, and control the pressure sensor to obtain the weight of the object to be heated. Of course, in other embodiments, information such as the type and / or weight of the object to be heated can also be directly obtained through the input mechanism.

[0082] In an application scenario, such as Figure 7 As shown, the control mechanism first determines a preset heating temperature curve corresponding to the food information based on the food information; then, the control mechanism sets the heating power of the microwave mechanism based on the preset heating temperature curve and the temperature of the food; then, the control mechanism continues to control the temperature measuring mechanism to obtain the temperature of the food, and determines whether the temperature change of the food conforms to the preset heating temperature curve, if not, the control mechanism continues to adjust the heating power of the microwave mechanism based on the preset heating temperature curve and the temperature of the food.

[0083] Optionally, the microwave mechanism 61 of this embodiment includes a microwave solid-state source, which includes a controller 611 and a signal generator 612 connected to the controller 611. The controller 611 is also connected to the control mechanism 63. The controller 611 generates a heating instruction under the control of the control mechanism 63, and the signal generator 612 generates a microwave signal based on the heating instruction to heat the object to be heated.

[0084] The microwave heating device of this embodiment uses a microwave solid-state source to generate a microwave signal, which can achieve stepless frequency modulation, so that each working frequency band of the microwave heating device can be smoothly adjusted. For example, the difference between the frequency bands of adjacent gears of a microwave heating device such as a microwave oven is small. This embodiment uses a microwave solid-state source to control the output power of the microwave signal, which can achieve the adjustment between these frequency bands with small differences.

[0085] Optionally, the microwave mechanism 61 of this embodiment also includes: a power detection circuit 614, which is respectively connected to the signal generator 612 and the controller 611, and is used to obtain the actual output power of the microwave signal output by the signal generator 612. The controller 612 is also used to match the actual output power with the heating power, and control the signal generator 612 to adjust the power of the microwave signal output by the signal generator 612 based on the matching result to adjust the heating power.

[0086] Due to the existence of various interference factors, the heating power of the microwave mechanism 61 controlled by the control mechanism 63 may deviate to a certain extent from the actual output power of the microwave mechanism 61. Therefore, in order to reduce the deviation, the present embodiment uses the power detection circuit 614 to obtain the actual output power of the microwave mechanism 61, that is, the actual output power of the microwave signal of the signal generator 612, and adjusts the heating power of the microwave mechanism 61 based on the matching result between the actual output power and the heating power of the microwave mechanism 61 controlled by the control mechanism 63, that is, adjusts the transmission power of the microwave signal of the signal generator 612, so that the actual output power of the microwave mechanism 61 is consistent with the heating power of the microwave mechanism 61.

[0087] Optionally, the microwave mechanism 61 of the present embodiment further includes: a power amplifier 613, which is connected to the signal generator 612 and the power detection circuit 614, respectively, and is used to amplify the microwave signal output by the signal generator 612, so that the power detection circuit 614 performs power detection on the amplified microwave signal. From the above analysis, it can be seen that the difference between the frequency bands of adjacent gears of the microwave solid-state source is small, and the power amplifier 613 is used to amplify the microwave signal generated by the signal generator 612 to achieve amplification of the heating power, which can improve the accuracy of power detection and ensure the normal stepless adjustment of multiple frequency bands of the microwave solid-state source.

[0088] The microwave solid-state source is a device that uses solid-state active devices to generate microwave signals, and its signal transmitter 61 may include a transferred electron oscillator, an avalanche diode oscillator or a microwave transistor oscillator.

[0089] In other embodiments, the control mechanism and the controller may be integrated, that is, the above control may be implemented through the same control mechanism or the controller.

[0090] The microwave heating device of this embodiment is also used to implement the above-mentioned microwave heating control method, which will not be described in detail here.

[0091] The microwave heating device of this embodiment can be a microwave heating device such as a microwave oven, a microwave oven, a microwave rice cooker, etc.; the number of solid-state microwave sources includes a single, two or more than two; the microwave heating device also includes an antenna, and the microwaves generated by the solid-state microwave source are fed into the heating chamber 64 through the antenna; the input mechanism 65 can include at least one of a button, a knob switch, a microphone and a touch display screen; the temperature measuring mechanism 62 can be a temperature sensor, for example, a contact temperature sensor such as a thermistor, or a non-contact temperature sensor such as an infrared thermometer, etc.

[0092] The present application can quantitatively detect the microwave output power of the microwave heating device, can realize precise control of microwave output by detecting the output microwave energy, and can realize intelligent microwave heating control without setting the heating time. During the operation of the microwave heating device, the output power can be finely controlled, and the output power can be adjusted steplessly from 0 to the maximum power; and the output power can be adjusted in real time according to the load information or the heating temperature requirement.

[0093] The present application further proposes a computer storage medium, such as Figure 8 As shown, Figure 8 It is a structural diagram of an embodiment of a computer storage medium of the present application. The computer storage medium 80 of this embodiment stores program instructions 81. When the program instructions 81 are executed by the processor, the microwave heating control method of the above embodiment is implemented.

[0094] The computer storage medium of this embodiment can be but is not limited to a USB flash drive, an SD card, a PD optical drive, a mobile hard disk, a large-capacity floppy drive, a flash memory, a multimedia memory card, a server, etc.

[0095] Different from the prior art: The microwave heating control method of the present application first determines the preset heating temperature curve of the heated object based on the information of the heated object, and then obtains the temperature of the heated object and the heating time corresponding to the temperature during the microwave heating of the heated object; finally, the temperature and the heating time corresponding to the temperature are matched with the preset heating temperature curve of the heated object, and the heating power of the microwave heating of the heated object is adjusted based on the matching result. In this way, the present application uses the matching result between the temperature and heating time of the heated object during the microwave heating process and the preset heating temperature curve of the heated object to adjust the heating power of the microwave heating of the heated object, so that the actual heating temperature curve of the heated object is more consistent with its preset heating temperature curve, that is, more consistent with the preset, or ideal heating temperature curve, which can reduce the waste of microwave energy and improve the microwave heating effect, and can improve the efficiency of microwave heating.

[0096] In addition, if the above functions are implemented in the form of software functions and sold or used as independent products, they can be stored in a storage medium readable by a mobile terminal, that is, the present application also provides a storage device storing program data, the program data can be executed to implement the method of the above embodiment, and the storage device can be, for example, a USB flash drive, an optical disk, a server, etc. In other words, the present application can be embodied in the form of a software product, which includes a number of instructions for enabling a smart terminal to execute all or part of the steps of the method described in each embodiment.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0098] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0099] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (which can be a personal computer, server, network device or other system that can fetch instructions from the instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0100] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A microwave heating device, It is characterized in that include: A microwave mechanism, used for performing microwave heating on the object to be heated; A temperature measuring mechanism, used for measuring the temperature of the heated object; a control mechanism connected to the microwave mechanism and the temperature measuring mechanism, respectively, and used to determine a heating temperature curve of the heated object based on information of the heated object; the control mechanism is also used to control the microwave mechanism to perform microwave heating on the heated object, and control the temperature measuring mechanism to measure the temperature of the heated object during microwave heating of the heated object, and the control mechanism is also used to obtain a heating time corresponding to the temperature; the control mechanism is also used to match the temperature and the heating time with the heating temperature curve, and adjust the heating power of the microwave heating of the heated object based on the matching result; The control mechanism is further used to obtain the actual output power of the microwave heating of the heated object, match the actual output power with the heating power, and adjust the heating power based on the matching result; The control mechanism is also used to calculate the current temperature change rate of the heated object based on the temperature and the heating time, calculate the preset temperature change rate corresponding to the heating time based on the heating temperature curve, match the current temperature change rate with the preset temperature change rate, and adjust the heating power of the microwave heating of the heated object based on the matching result.

2. The microwave heating device according to claim 1, It is characterized in that The microwave mechanism comprises a solid-state microwave source, and the solid-state microwave source comprises: A controller, connected to the control mechanism, and configured to generate a heating instruction under the control of the control mechanism; A signal generator is connected to the controller and is used to generate a microwave signal based on the heating instruction to perform microwave heating on the object to be heated.

3. The microwave heating device according to claim 2, It is characterized in that The solid-state microwave mechanism also includes: A power detection circuit is connected to the signal generator and the controller respectively, and is used to obtain the actual output power of the microwave signal output by the signal generator. The controller is also used to match the actual output power with the heating power, and control the signal generator to adjust the power of the microwave signal output by the signal generator based on the matching result to adjust the heating power.

4. The microwave heating device according to claim 3, It is characterized in that The solid-state microwave mechanism also includes: a power amplifier, which is connected to the signal generator and the power detection circuit respectively, and is used to amplify the microwave signal output by the signal generator so that the power detection circuit can perform power detection on the amplified microwave signal.

5. A microwave heating control method, It is characterized in that include: determining a preset heating temperature curve of the heated object based on information of the heated object; In the process of performing microwave heating on the object to be heated, obtaining the temperature of the object to be heated and the heating time corresponding to the temperature; Matching the temperature and the heating time with the preset heating temperature curve, and adjusting the heating power of the microwave heating of the heated object based on the matching result; Wherein, the microwave heating control method further comprises: Obtaining actual output power of microwave heating of the object to be heated; matching the actual output power with the heating power, and adjusting the heating power based on the matching result; The step of matching the temperature and the heating time with the preset heating temperature curve, and adjusting the heating power of the microwave heating of the heated object based on the matching result, comprises: Calculating a current temperature change rate of the heated object based on the temperature and the heating duration; Calculating a preset temperature change rate corresponding to the heating duration based on the preset heating temperature curve; The current temperature change rate is matched with the preset temperature change rate, and the heating power of the microwave heating of the heated object is adjusted based on the matching result.

6. The microwave heating control method according to claim 5, It is characterized in that The step of adjusting the heating power based on the matching result comprises: In response to the actual output power being greater than the heating power, reducing the heating power; In response to the actual output power being less than the heating power, the heating power is increased.

7. The microwave heating control method according to claim 5, It is characterized in that The matching of the current temperature change rate with the preset temperature change rate, and adjusting the heating power of the microwave heating of the heated object based on the matching result, comprises: In response to the current temperature change rate being greater than the preset temperature change rate, reducing the heating power of the microwave heating of the heated object; In response to the current temperature change rate being less than the preset temperature change rate, increasing the heating power of the microwave heating of the heated object; or Calculating the difference between the current temperature change rate and the preset temperature change rate; In response to the difference being greater than a first preset difference, reducing the heating power of the microwave heating of the object to be heated; In response to the difference being less than a second preset difference, increasing the heating power for performing microwave heating on the object to be heated; The first preset difference is greater than zero, and the second preset difference is less than zero.

8. A computer storage medium, It is characterized in that Program instructions are stored thereon, and when the program instructions are executed by a processor, the microwave heating control method according to any one of claims 5 to 7 is implemented.

Citation Information

Patent Citations

  • Heating control method

    CN102147594A

  • Solid-state microwave power source and control method of microwave heating device

    CN109451619A

  • Control method, device and facility for water heater

    CN113758016A

  • Control method, control device, cooking equipment and readable storage medium

    CN113812856A

  • adaptive SEMICONDUCTOR MICROWAVE GENERATOR FOR PRECISE HEATING OF OBJECTS AND CHEMICAL SAMPLES

    DE102017108747A1