WO2019205769A1 - 低温烹饪装置、温度控制方法、微波炉、终端及存储介质 - Google Patents

低温烹饪装置、温度控制方法、微波炉、终端及存储介质 Download PDF

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Publication number
WO2019205769A1
WO2019205769A1 PCT/CN2019/074192 CN2019074192W WO2019205769A1 WO 2019205769 A1 WO2019205769 A1 WO 2019205769A1 CN 2019074192 W CN2019074192 W CN 2019074192W WO 2019205769 A1 WO2019205769 A1 WO 2019205769A1
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WO
WIPO (PCT)
Prior art keywords
heating
microwave
temperature
difference
low temperature
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Application number
PCT/CN2019/074192
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English (en)
French (fr)
Inventor
何春华
钟广雄
黎青海
李兆磊
周小金
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
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Application filed by 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Publication of WO2019205769A1 publication Critical patent/WO2019205769A1/zh

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Classifications

    • 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
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/68—Circuits for monitoring or control
    • 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
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/668—Microwave heating devices connected to a telecommunication network
    • 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
    • H05B6/64—Heating using microwaves
    • H05B6/80—Apparatus for specific applications
    • 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
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves

Definitions

  • the present application relates to the field of microwave cooking technology, and in particular, to a low temperature cooking device, a temperature control method, a microwave oven, a terminal, and a storage medium.
  • Low-temperature cooking is a newest cooking technique. It usually heats food at temperatures below 100 °C, which can avoid the damage caused by high-temperature heating to the food, and also ensure the taste of food to the utmost. There is no such thing as traditional cooking overheating and drying, which has become more and more widely used at home and abroad.
  • the main purpose of the present application is to provide a low temperature cooking device, a temperature control method, a microwave oven, a terminal, and a storage medium, which are aimed at solving the technical problems of high cost, low energy consumption, and poor heating uniformity in the prior art.
  • the present application provides a low temperature cooking apparatus including a microwave generating apparatus and a low temperature cooking vessel, the low temperature cooking vessel being placed in a microwave heating environment radiated by the microwave generating apparatus;
  • the vessel comprises a non-metallic outer basin, a metal inner tank and a metal cover, the metal inner tank is placed inside the non-metallic outer basin, and the first cooking liquid is filled between the outer wall of the metal inner tank and the inner wall of the non-metal outer basin, the metal inner tank Internally filling a second cooking liquid, the metal cover is capped on the non-metallic outer basin opening;
  • the cryogenic cooking device is also provided with a temperature sensor that detects low temperature cooking food in the metal liner.
  • a first through hole blocking the microwave is formed on the metal inner casing, and/or a second through hole blocking the microwave is formed on the metal cover, and the sensing end of the temperature sensor is opened through the metal cover.
  • the second through hole is inserted into the second cooking liquid in the metal liner.
  • the temperature sensor comprises a temperature measuring component and a fluorescent ceramic material
  • the fluorescent ceramic material is disposed on a side of the bottom of the non-metallic outer basin away from the first cooking liquid
  • the temperature measuring component is fixedly disposed away from the microwave generating device.
  • the temperature measuring component comprising an optical fiber for transmitting an optical signal, a transmitter disposed at one end of the optical fiber, and a light guiding member disposed at the other end of the optical fiber; the microwave generating device placing the device of the low temperature cooking vessel A transparent region is disposed on the side of the transparent region away from the low temperature cooking vessel, and the light guiding member establishes a light passage between the fluorescent ceramic material and the optical fiber, wherein the first light beam in the optical fiber is reflected by the light guiding member On the fluorescent ceramic material, a fluorescent ceramic material is excited which produces a second light beam that is reflected by the light guide into the optical fiber.
  • the microwave generating device is a microwave oven
  • the microwave heating environment radiated by the microwave generating device is a cavity of a microwave oven
  • the non-metal outer basin is a plastic or ceramic material
  • the metal liner and the metal cover are Metallic aluminum.
  • the present application also provides a temperature control method for a low temperature cooking device, the low temperature cooking device comprising a microwave generating device and a low temperature cooking vessel, the low temperature cooking vessel comprising a non-metallic outer basin, a metal liner and a metal cover, the metal inside The bile is placed inside the non-metallic outer pot, and the low temperature cooking device is further provided with a temperature sensor for detecting low temperature cooking food in the metal inner tank;
  • the temperature control method includes:
  • the control microwave generating device performs microwave heating on the low temperature cooking vessel according to the heating power corresponding to the numerical range in which the difference ⁇ T is located, wherein the larger the difference ⁇ T, the larger the heating power corresponding to the numerical range;
  • the step of controlling the microwave generating device to perform microwave heating on the low temperature cooking vessel according to the heating power corresponding to the numerical range in which the difference ⁇ T is located includes:
  • the method includes:
  • the heating power is constant, wherein T3 and T4 are the third parameter and the fourth parameter, T4 ⁇ T1;
  • the application also provides a terminal, the terminal comprising: a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, the computer readable instructions being The steps of the temperature control method of the above-described low temperature cooking device are implemented at the time of execution.
  • the present application also provides a microwave oven, the microwave oven comprising: a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, the computer readable instructions being The processor performs the steps of the temperature control method of the low temperature cooking device described above when executed.
  • the present application also provides a storage medium characterized by storing computer readable instructions on the storage medium, the computer readable instructions being executed by a processor to implement the steps of the temperature control method of the low temperature cooking apparatus described above.
  • the present invention provides a low temperature cooking device comprising a microwave generating device and a low temperature cooking vessel, the cryogenic cooking vessel being placed in a microwave heating environment radiated by the microwave generating device; the low temperature cooking vessel comprising a non-metal An outer basin, a metal liner and a metal cover, the metal liner is placed inside the non-metallic outer basin, the first cooking liquid is filled between the outer wall of the metal inner liner and the inner wall of the non-metallic outer basin, and the inner portion of the metal inner tank is filled with the second A cooking liquid is capped over the non-metallic outer basin opening.
  • the cooking liquid in the non-metallic outer pot is heated by microwave, and the heated cooking liquid heats the cooking liquid in the metal inner tank by heat transfer, thereby heating the food placed in the metal inner tank, so that the cooking liquid and the food temperature are consistent; the microwave is not directly Heating the food to make the food heated evenly and the temperature controllability is good, and then using microwave heating, the heating efficiency is high.
  • the present application also provides a temperature control method for a low temperature cooking device, the temperature control method comprising: obtaining a difference ⁇ T between a preset target temperature and a real-time temperature of the low-temperature cooking food, and determining the difference ⁇ T a range of values; controlling the microwave generating means to perform microwave heating on the low temperature cooking vessel according to the heating power corresponding to the range of values of the difference ⁇ T, wherein the larger the difference ⁇ T, the larger the heating power corresponding to the range of values Detecting and determining that the real-time temperature reaches the target temperature for the first time, calculating the heating time of the low-temperature cooking food; detecting and determining that the cumulative heating time reaches a preset value, and stopping the microwave heating of the low-temperature cooking food.
  • the difference ⁇ T is detected and determined to be in the value range T1 ⁇ ⁇ T ⁇ T2, adjusting the output power of the microwave oven to the first output power P1, achieving continuous low power frequency conversion control, improving the uniformity of heating, the problem of microwave focusing, and low energy consumption of microwave variable frequency heating.
  • FIG. 1 is a schematic structural diagram of a terminal/device in a hardware operating environment according to an embodiment of the present application
  • FIG. 2 is a schematic structural view of an embodiment of a low temperature cooking device of the present application
  • FIG. 3 is a schematic structural view of another embodiment of the low temperature cooking device of the present application.
  • FIG. 4 is a schematic flow chart of an embodiment of a temperature control method for a low temperature cooking device of the present application.
  • first, second and the like in this application are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • fixed may be a fixed connection, a detachable connection, or an integral; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. It may be the internal connection of two elements or the interaction of two elements unless explicitly defined otherwise.
  • specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • FIG. 1 is a schematic structural diagram of a terminal in a hardware operating environment involved in an embodiment of the present application.
  • the terminal can be implemented in various forms.
  • the terminal described in the present application may include home appliances such as an air conditioner, a television, a refrigerator, a washing machine, a water heater, an air purifier, a vacuum cleaner, and the like, and may also include, for example, a smart speaker, a mobile phone, a tablet computer, a notebook computer, a palmtop computer.
  • Personal digital assistant Personal Digital Assistant, PDA), Portable Media Player (Portable Media) Player, PMP), navigation device, wearable device, smart bracelet, pedometer and other terminals.
  • a microwave oven will be described as an example in the following description, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to other terminals such as smart speakers, in addition to components particularly for mobile purposes.
  • the terminal may include a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002.
  • the communication bus 1002 is used to implement connection communication between these components.
  • the user interface 1003 can include a display, an input unit such as a keyboard, and the optional user interface 1003 can also include a standard wired interface, a wireless interface.
  • the network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface).
  • the memory 1005 may be a high speed RAM memory or a stable memory (non-volatile) Memory), such as disk storage.
  • the memory 1005 can also optionally be a storage device independent of the aforementioned processor 1001.
  • the terminal may further include a camera, RF (Radio) Frequency, RF) circuits, sensors, audio circuits, WiFi modules, and more.
  • sensors such as light sensors, motion sensors, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display according to the brightness of the ambient light, and the proximity sensor may turn off the display and/or when the mobile terminal moves to the ear. Backlighting.
  • the gravity acceleration sensor can detect the magnitude of acceleration in each direction (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, Related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; of course, the mobile terminal can also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. No longer.
  • terminal structure shown in FIG. 1 does not constitute a limitation to the terminal, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements.
  • an operating system may be included in the memory 1005 as a computer storage medium.
  • the network interface 1004 is mainly used to connect to the background server and perform data communication with the background server;
  • the user interface 1003 is mainly used to connect the client (user end), and perform data communication with the client;
  • the processor 1001 can be used to invoke computer readable instructions stored in memory 1005.
  • the low temperature cooking device includes a microwave generating device (not shown) and a low temperature cooking vessel, and the low temperature cooking vessel is placed in a microwave radiated by the microwave generating device.
  • the low temperature cooking vessel comprises a non-metallic outer pot 1, a metal inner tank 2 and a metal cover 3, the metal inner tank 2 is placed inside the non-metallic outer pot 1, the outer wall of the metal inner liner 2 and the non-metal
  • a first cooking liquid 4 is filled between the inner walls of the outer tub 1
  • a second cooking liquid 41 is filled inside the metal inner liner 2
  • the metal cap 3 is capped on the opening of the non-metallic outer tub 1.
  • the metal liner 2 is used in combination with the metal cover 3, and a food that requires low-temperature cooking is placed therein, and the electromagnetic shielding effect of the metal is utilized so that the microwave cannot directly heat the food.
  • the shape of the metal liner 2 and the metal cover 3 is generally very smooth, and the curvature is small, so that discharge is less likely to occur.
  • the first cooking liquid 4 and the second cooking liquid 41 may select water, but are not limited to water, and other liquids that can be used for heating the food may be used as the first cooking liquid 4 and the second cooking liquid 41 of the present application.
  • the first cooking liquid 4 in the non-metallic outer basin 1 is heated by microwaves, and the heated first cooking liquid 4 heats the second cooking liquid 41 in the metal liner 2 by heat transfer, thereby heating the metal.
  • the food placed in the gallbladder 2 realizes that the second cooking liquid 41 is consistent with the temperature of the food; the microwave does not directly heat the food, so that the food is heated uniformly and the temperature is controllable, and the microwave heating is used, compared with the conventional heating tube and the heating tank. , high heating efficiency.
  • a first through hole 5 for blocking microwaves is formed on the metal liner 2, and/or the metal is A second through hole 51 for blocking the microwave is formed on the cover 3.
  • a first through hole 5 is defined in the metal liner 2, which may be at the bottom of the metal liner 2, or may be a sidewall of the metal liner 2, or a first through hole 5 may be formed in the bottom and the side wall.
  • the first through hole 5 can accelerate the heat transfer rate between the first cooking liquid 4 and the second cooking liquid filled between the non-metallic outer tub 1 and the metal liner 2, and detect and determine the first cooking liquid 4 and the second cooking
  • the liquid 41 is uniform, and during the process of adding the first cooking liquid 4 or the second cooking liquid 41, the metal inner liner 2 and the non-metallic outer pot 1 are directly connected through the first through hole 5, the first cooking liquid 4 or the second
  • the cooking liquid 41 is filled between the inside of the metal liner 2 and the metal liner 2 and the non-metal outer pot 1 at a time without separately filling the second cooking liquid 41 into the inside of the metal liner 2 and filling the first cooking liquid 4 into the metal Between the gallbladder 2 and the non-metallic outer basin 1.
  • the aperture of the first through hole 5 is not too large, and the microwave cannot be penetrated.
  • the aperture of the first through hole 5 can be as large as possible under the premise of ensuring that the microwave does not penetrate.
  • the shielding space formed between the metal liner 2 and the metal cover 3 is ensured to be non-magnetic leakage, and the heat transfer rate between the inside and the outside of the metal liner 2 is also accelerated, so that the cooking food is heated uniformly and the heating efficiency is improved. Reduce energy consumption.
  • a second through hole 51 is defined in the metal cover 3, and the second through hole 51 opens at least one.
  • the second through hole 51 releases the steam generated by the heated second cooking liquid 41 to ensure the air pressure inside the low temperature cooking vessel and the external atmospheric pressure. Consistently, the internal gas pressure of the low-temperature cooking vessel is prevented from being higher than the external atmospheric pressure during the heating process, so that the metal cover 3 is punched open and magnetic leakage occurs.
  • the heat transfer between the second cooking liquid 41 and the external first cooking liquid 4 inside the metal liner 2 is accelerated, so that the cooked food is heated evenly.
  • the heating efficiency is improved, the energy consumption is reduced, and the second through hole 51 is opened in the metal cover 3 to prevent the internal pressure of the low temperature cooking vessel from being higher than the external atmospheric pressure during the heating process, so that the metal cover 3 is punched open and magnetic leakage occurs.
  • the low temperature cooking device is further provided with a temperature sensor 6 for detecting low temperature cooking food in the metal liner 2.
  • the temperature sensor 6 can be a thermal resistor, a thermocouple or a fiber-optic temperature sensor 6, as long as temperature detection can be achieved.
  • the temperature sensor 6 detects the temperature of the second cooking liquid 41 in the metal liner 2, detects and determines the heat transfer/diffusion balance, the temperature of the second cooking liquid 41 approaches the temperature of the food, and detects the temperature of the cooked food. The feedback of the temperature is detected, and the power of the microwave heating is adjusted to ensure that the cooked food is kept in a constant temperature environment.
  • the sensing end of the temperature sensor 6 is inserted into the metal liner through the second through hole 51 opened in the metal cover 3. In the second cooking liquid 41.
  • the temperature sensor 6 is inserted into the second through hole 51 opened in the metal cover 3, and the temperature of the second cooking liquid 41 inside the metal liner 2 is detected by the temperature sensor 6 on the one hand, and the disassembly of the temperature sensor 6 is facilitated on the other hand.
  • the metal liner 2 and the metal cover 3 are cleaned.
  • the temperature sensor includes a temperature measuring component and a fluorescent ceramic material 71 disposed at a bottom of the non-metallic outer basin 1 away from the first cooking liquid 4 On one side, the temperature measuring component is fixedly disposed on the side of the device 8 away from the microwave cooking device.
  • the temperature measuring component includes an optical fiber 7 for transmitting an optical signal, a transmitter disposed at one end of the optical fiber, and a light guiding member 73 disposed at the other end of the optical fiber.
  • the device 8 for placing the low temperature cooking vessel in the microwave generating device is provided with a transparent region 72, the light guiding member 73 is disposed on the side of the transparent region 72 away from the low temperature cooking vessel, and the light guiding member 73 establishes the fluorescent ceramic material 71 and the optical fiber. 7 between the optical paths, the first light beam in the optical fiber 7 is reflected by the light guiding member 73 onto the fluorescent ceramic material 71, and the fluorescent ceramic material 71 is excited. The fluorescent ceramic material 71 generates a second light beam, which is reflected by the light guiding member 73. In the optical fiber 7, the transmitter receives the second beam transmitter to calculate a temperature value based on the fluorescence lifetimes of the first beam and the second beam.
  • the fluorescent ceramic material 71 at the bottom of the non-metallic outer basin 1 is aligned with the transparent region 72 on the device 8, wherein the fluorescent ceramic material 71 can be disposed on the bottom of the non-metallic outer basin 1 by means of pasting, sintering or spraying, and the optical fiber 7 transmits the first light beam.
  • the blue light is reflected by the light guiding member 73 through the transparent region 72 to the fluorescent ceramic material 71.
  • the fluorescent ceramic material 71 is excited by the first light beam and the blue light to generate a second light beam, red fluorescent light, and the second light beam is red fluorescently exposed. After the transparent area 72 is reflected by the light guiding member 73, it is reflected back to the optical fiber 7.
  • the other end of the optical fiber 7 is connected with a transmitter, and the temperature value is calculated by the signal processing of the transmitter.
  • the fluorescent ceramic material 71 is a temperature sensitive material. After detecting and determining the temperature change of the material, the red fluorescence lifetime of the excited second beam will change, and the transmitter can calculate the temperature value according to the fluorescence lifetime characteristic.
  • the temperature value obtained by the above measurement is the temperature value of the bottom of the non-metal outer basin 1, and since the second cooking liquid 41 is in contact with the bottom of the non-metal outer basin 1, the second cooking liquid 41 is detected and determined after the heat transfer/diffusion balance is detected and determined.
  • the temperature of the cooked food at a low temperature is close to the temperature at the bottom of the non-metallic outer pot 1 to obtain the temperature of the food cooked at a low temperature.
  • the temperature of the food cooked at a low temperature is measured by the plug-in temperature measurement and the bottom temperature measurement, and the cleaning of the low-temperature cooking vessel is facilitated while ensuring accurate temperature measurement.
  • the microwave generating device is a microwave oven, and the microwave heating environment radiated by the microwave generating device is a cavity of a microwave oven, and the microwave generating device is placed at a low temperature.
  • the device 8 of the cooking vessel is a ceramic substrate in a microwave oven.
  • the non-metal outer basin 1 is made of plastic, ceramic material or glass, and the like, as long as it is a non-metal microwave-heatable material, and is not particularly limited herein. .
  • the metal liner 2 and the metal lid 3 are metal aluminum.
  • the metal liner 2 and the metal cover 3 are produced based on the low cost and high thermal conductivity of the metal aluminum.
  • Other metal materials such as copper, iron, alloy, etc., may be used to form the metal liner 2 and the metal cover 3 as long as the microwave can be shielded.
  • the application also provides a temperature control method for a low temperature cooking device. As shown in FIG. 4, the temperature control method includes:
  • Step S10 obtaining a difference ⁇ T between a preset target temperature and a real-time temperature of the low-temperature cooking food, and determining a numerical range in which the difference ⁇ T is located;
  • Target temperature heating temperature required for low-temperature cooking food, different food target temperature is different, for example, the control condition of hot spring egg is 65 ° C, the control condition of salmon is 52 ° C, the control condition of beef is 63 ° C, yogurt The control conditions were 43 °C.
  • the target temperature may be input by the user according to different food values, or the temperature control system of the microwave oven may pre-store the temperature values of different foods, and the user selects a corresponding temperature value according to the type of the food, or inputs or selects a corresponding temperature through the mobile terminal. Value.
  • Real-time temperature the temperature value detected by the temperature sensor in the metal liner at a specific moment, that is, the temperature of the food.
  • ⁇ T is the difference between the value of the target temperature minus the value of the real-time temperature, that is, the temperature control error.
  • the range of values generally consists of a maximum value and a minimum value, and the values between the maximum value and the minimum value belong to this value range.
  • the temperature sensor measures the temperature of the low-temperature cooking food in real time, and compares the measured temperature value with the target temperature value of the low-temperature cooking food to obtain a temperature control error, and determines the temperature control error according to the value of the temperature control error.
  • the range of values The range of values.
  • the low-temperature cooking food is placed in the metal liner, immersed in the second cooking liquid, the metal cover is covered, and the low-temperature cooking vessel containing the low-temperature cooking food is placed in the microwave generating device, that is, inside the microwave oven.
  • the target temperature of the low-temperature cooking corresponding to the low-temperature cooking food is set, the real-time temperature of the low-temperature cooking food is detected, and the difference ⁇ T between the target temperature and the real-time temperature is calculated, and the numerical range in which the difference ⁇ T is determined is determined.
  • Step S20 controlling the microwave generating device to perform microwave heating on the low temperature cooking vessel according to the heating power corresponding to the numerical range in which the difference ⁇ T is located, wherein the larger the difference ⁇ T, the larger the heating power corresponding to the numerical range ;
  • Different numerical ranges correspond to different heating powers, and the range of values is set according to the hardware conditions of the microwave oven and the accuracy of the temperature control.
  • the value range of the difference ⁇ T corresponds to a relatively large heating power, so that the real-time temperature is reached as soon as possible.
  • the target temperature is detected and determined to be small, that is, the difference between the real-time temperature and the target temperature is small, and the value range of the difference ⁇ T corresponds to a relatively small heating power to ensure uniformity of heating. .
  • Step S30 detecting and determining that the real-time temperature reaches the target temperature for the first time, and calculating the heating duration of the low-temperature cooking food;
  • the real-time temperature reaches the target temperature, that is, the temperature of the low-temperature cooking food reaches the temperature required for the low-temperature cooking
  • the constant temperature phase is entered, and the heating duration is recorded, that is, the length of cooking of the low-temperature cooking food at the target temperature is recorded.
  • step S40 it is detected and determined that the accumulated heating time reaches a preset value, and the microwave heating of the low temperature cooking food is stopped.
  • Preset value length of cooking at low temperature, different foods are cooked at different temperatures.
  • the temperature of the hot spring egg is 1.5h
  • the temperature of the salmon is 40min
  • the temperature of the beef is 1.5h.
  • the control conditions are constant temperature 7h.
  • the low-temperature cooking food is heated by the corresponding heating power to ensure uniform heating of the low-temperature cooking process.
  • Sex, and microwave variable frequency heating reduces heating energy consumption.
  • the controlling the microwave generating device to perform microwave heating on the low temperature cooking vessel according to the heating power corresponding to the numerical range in which the difference ⁇ T is located in step S20 includes:
  • Step S50 detecting and determining that the difference ⁇ T is in a value range T1 ⁇ ⁇ T ⁇ T2, adjusting the heating power to the first heating power P1 for microwave heating, wherein T1 and T2 are the first parameter and the second parameter.
  • the values of T1 and T2 are set according to the hardware condition of the microwave oven and the accuracy of temperature control. The smaller the difference between T1 and T2, the higher the accuracy of temperature control, the larger the value of T1 and T2, the real-time temperature and The greater the difference in target temperature.
  • the first heating power P1 is adapted to adjust the magnitude of the first heating power P1 according to the magnitude of the values of T1 and T2. For example, it is detected and determined that the values of T1 and T2 are large, that is, the real-time temperature deviates from the target temperature to a greater extent, and the higher power is used for heating, so that the real-time temperature reaches the target temperature as soon as possible to ensure that the food is at a constant temperature. It is detected and determined that the values of T1 and T2 are small, that is, the real-time temperature is not much different from the target temperature, and heating is performed with a smaller power, and low-power heating is performed to ensure uniformity of heating.
  • T1 and T2 are different, corresponding to different first heating powers P1. For example, it is detected and determined that T1 is 0.1 ° C, T2 is 2 ° C, that is, when 0.1 ° C ⁇ ⁇ T ⁇ 2 ° C, microwave oven heating power is P1, P1 is 100 W; detecting and determining T1 is 2 ° C, T 2 is 4 ° C, ie 2 °C ⁇ ⁇ T ⁇ 4 ° C, microwave oven heating power is P1, P1 is 200W; detect and determine T1 is 4 ° C, T2 is 6 ° C, that is, 4 ° C ⁇ ⁇ T ⁇ 6 ° C, microwave oven heating power is P1, P1 is 300W; detect and determine T1 is 6 ° C, T2 is 8 ° C, that is, when 6 ° C ⁇ ⁇ T ⁇ 8 ° C, microwave oven heating power is P1, P1 is 400W and so on.
  • ⁇ T is in the value range T1 ⁇ ⁇ T ⁇ T2, corresponding to adjusting the first heating power P1 of the microwave oven, and heating is performed using the adjusted first heating power P1 until the accumulated time reaches a preset value. Achieve continuous low-power variable frequency control to improve heating uniformity and microwave focusing.
  • the method includes:
  • Step S60 detecting and determining that the difference ⁇ T is in a value range T3 ⁇ ⁇ T ⁇ T4, the heating power is constant, wherein T3 and T4 are the third parameter and the fourth parameter, T4 ⁇ T1;
  • the heating power of the microwave oven does not change. For example, it is detected and determined that T3 is -0.1 ° C, T4 is 0.1 ° C, that is, -0.1 ° C ⁇ ⁇ T ⁇ 0.1 ° C, and the heating power of the microwave oven is constant, so that the microwave oven does not start working frequently, and the service life of the relay can be improved.
  • Step S70 detecting and determining that the difference ⁇ T is in a value range ⁇ T ⁇ T5, stop microwave heating, wherein T5 is the fifth parameter, T5 ⁇ T3.
  • the microwave oven stops the heating operation to prevent the real-time temperature from being higher than the target temperature.
  • the microwave oven output power is P0, that is, the microwave oven stops heating
  • the first heating power of the microwave oven is 100W;
  • the first heating power of the microwave oven is 200W;
  • the first heating power of the microwave oven is 300 W;
  • the first heating power of the microwave oven is 400 W;
  • the first heating power of the microwave oven is 500 W;
  • the first heating power of the microwave oven is 600 W;
  • the first heating power of the microwave oven is 700 W;
  • the first heating power of the microwave oven is 800 W;
  • the first heating power of the microwave oven is 900 W;
  • the first output power of the microwave oven is 1000 W.
  • the microwave oven output power is unchanged, so that the microwave oven will not open frequently, can improve the life of the relay.
  • the control condition is constant temperature of 52 ° C for 40 min
  • the real-time temperature of the food is constant at about 52 ° C
  • the temperature control accuracy is ⁇ 0.5 ° C.
  • the final energy can be calculated by the temperature control method of the above-mentioned low-temperature cooking device.
  • the consumption is very low, about 0.1 kWh.
  • the present application also provides a microwave oven including a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, the computer readable instructions being executed by the processor.
  • a microwave oven including a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, the computer readable instructions being executed by the processor.
  • the application also provides a terminal, the terminal comprising: a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, the computer readable instructions being The steps of the temperature control method of the above-described low temperature cooking device are implemented at the time of execution.
  • the present application also provides a storage medium (ie, a computer readable storage medium), wherein the storage medium stores computer readable instructions, and the computer readable instructions are executed by a processor to implement the low temperature cooking device described above The steps of the temperature control method.
  • the computer readable storage medium can be a non-transitory readable storage medium.
  • the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present application.

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Abstract

一种低温烹饪装置、温度控制方法、微波炉、终端及存储介质。低温烹饪装置包括微波发生装置和低温烹饪器皿，低温烹饪器皿放置于微波发生装置中；低温烹饪器皿包括非金属外盆（1）、金属内胆（2）和金属盖（3），金属内胆（2）放置于非金属外盆（1）内部，金属内胆（2）外壁与非金属外盆（1）内壁之间填第一充烹饪液体（4），金属内胆（2）内部填充第二烹饪液体（41），金属盖（3）封盖于非金属外盆（1）开口上。通过微波间接加热食物，使得食物加热均匀而且温度可控性好，使用微波加热，加热效率高。温度控制方法通过一维模糊控制原理，使微波发生装置不频繁开启工作，提高继电器的寿命；而且实现连续低功率变频控制，改善加热的均匀性、微波聚焦的问题，微波变频加热能耗低。

Description

低温烹饪装置、温度控制方法、微波炉、终端及存储介质
本申请要求于2018年04月26日提交中国专利局、申请号为201810391652.0、发明名称为“低温烹饪装置、温度控制方法、微波炉、终端及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在申请中。
技术领域
本申请涉及微波烹饪技术领域，尤其涉及一种低温烹饪装置、温度控制方法、微波炉、终端及存储介质。
背景技术
低温烹饪是一种最新的烹饪技术，通常是在低于100℃的温度下对食物进行加热，能最大程度的避免高温加热对食物营养造成的破坏，同时也能最大限度的保证食物的口感，不会出现传统烹饪过火，发干的现象，在国内外应用已越来越广泛。
目前的低温烹饪方案大多是以电阻类加热设备为热源，例如水浴锅和蒸汽炉，但这些方法较专业，成本较高，能耗大，不利于在家用推广；而微波加热装置具有加热快，使用方便，保有率高等特点，已经广泛应用于家用烹饪，十分适合在微波加热装置上开发低温烹饪功能。
发明内容
本申请的主要目的在于提供一种低温烹饪装置、温度控制方法、微波炉、终端及存储介质，旨在解决现有技术中低温烹饪成本较高，能耗大、加热均匀性差的技术问题。
为实现上述目的，本申请提供一种低温烹饪装置，所述低温烹饪装置包括微波发生装置和低温烹饪器皿，所述低温烹饪器皿放置于微波发生装置所辐射的微波加热环境中；所述低温烹饪器皿包括非金属外盆、金属内胆和金属盖，所述金属内胆放置于非金属外盆内部，所述金属内胆外壁与非金属外盆内壁之间填充第一烹饪液体，金属内胆内部填充第二烹饪液体，所述金属盖封盖于非金属外盆开口上；
所述低温烹饪装置还设置有检测金属内胆中低温烹饪食物的温度传感器。
可选地，所述金属内胆上开设阻隔微波的第一通孔，和/或所述金属盖上开设阻隔微波的第二通孔，所述温度传感器的感应端穿过金属盖上开设的第二通孔插入金属内胆中的第二烹饪液体中。
可选地，所述温度传感器包括测温组件和荧光陶瓷材料，所述荧光陶瓷材料设置于非金属外盆底部远离第一烹饪液体一侧，所述测温组件固定设置于微波发生装置远离放置低温烹饪器皿的器件一侧；所述测温组件包括传输光信号的光纤、设置在光纤一端的变送器和设置在光纤另一端的导光件；所述微波发生装置放置低温烹饪器皿的器件上设置有透明区，所述导光件设置于透明区远离低温烹饪器皿一侧，所述导光件建立荧光陶瓷材料和光纤之间光通路，所述光纤中第一光束经导光件反射到荧光陶瓷材料上，激发荧光陶瓷材料，所述荧光陶瓷材料产生第二光束，经导光件反射到光纤中。
可选地，所述微波发生装置为微波炉，所述微波发生装置所辐射的微波加热环境为微波炉的内腔；所述非金属外盆为塑料或者陶瓷材料；所述金属内胆和金属盖为金属铝材。
本申请还提供一种低温烹饪装置的温度控制方法，所述低温烹饪装置包括微波发生装置和低温烹饪器皿，所述低温烹饪器皿包括非金属外盆、金属内胆和金属盖，所述金属内胆放置于非金属外盆内部，所述低温烹饪装置还设置有检测金属内胆中低温烹饪食物的温度传感器；
所述温度控制方法包括：
获取低温烹饪食物的预设目标温度与实时温度的差值△T，确定所述差值△T所处的数值范围；
控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热，其中差值△T越大，所处的数值范围对应的加热功率越大；
检测并确定实时温度首次达到目标温度，计算低温烹饪食物的加热时长；
检测并确定累计加热时长达到预设值，停止对低温烹饪食物进行微波加热。
可选地，所述控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热的步骤，包括：
检测并确定所述差值△T处于数值范围T1 ≤ △T < T2，调整加热功率为第一加热功率P1进行微波加热，其中T1和T2为第一参数和第二参数。
可选地，所述调整加热功率为第一加热功率P1进行微波加热的步骤之后包括：
检测并确定所述差值△T处于数值范围T3 ≤ △T < T4，加热功率不变，其中T3和T4为第三参数和第四参数，T4≤ T1；
检测并确定所述差值△T处于数值范围△T < T5，停止微波加热，其中T5为第五参数，T5≤T3。
本申请还提供一种终端，所述终端包括：存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令，所述计算机可读指令被所述处理器执行时实现上述的低温烹饪装置的温度控制方法的步骤。
本申请还提供一种微波炉，其特征在于，所述微波炉包括：存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令，所述计算机可读指令被所述处理器执行时实现上述的低温烹饪装置的温度控制方法的步骤。
本申请还提供一种存储介质，其特征在于，所述存储介质上存储有计算机可读指令，所述计算机可读指令被处理器执行时实现上述的低温烹饪装置的温度控制方法的步骤。
本申请提供的一种低温烹饪装置，所述低温烹饪装置包括微波发生装置和低温烹饪器皿，所述低温烹饪器皿放置于微波发生装置所辐射的微波加热环境中；所述低温烹饪器皿包括非金属外盆、金属内胆和金属盖，所述金属内胆放置于非金属外盆内部，所述金属内胆外壁与非金属外盆内壁之间填充第一烹饪液体，金属内胆内部填充第二烹饪液体，所述金属盖封盖于非金属外盆开口上。通过微波加热非金属外盆中的烹饪液体，加热后的烹饪液体通过热传递加热金属内胆中的烹饪液体，进而加热金属内胆中放置的食物，实现烹饪液体与食物温度一致；微波不直接加热食物，使得食物加热均匀而且温度可控性好，再者使用微波加热，加热效率高。
本申请还提供的一种低温烹饪装置的温度控制方法，所述温度控制方法包括：获取低温烹饪食物的预设目标温度与实时温度的差值△T，确定所述差值△T所处的数值范围；控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热，其中差值△T越大，所处的数值范围对应的加热功率越大；检测并确定实时温度首次达到目标温度，计算低温烹饪食物的加热时长；检测并确定累计加热时长达到预设值，停止对低温烹饪食物进行微波加热。通过一维模糊控制原理，检测并确定所述差值△T处于数值范围T3 ≤ △T < T4，微波炉的输出功率不变，这样使微波炉不会频繁开启工作，可提高继电器的寿命；而且检测并确定所述差值△T处于数值范围T1 ≤ △T < T2，调整微波炉的输出功率为第一输出功率P1，实现连续低功率变频控制，改善加热的均匀性、微波聚焦的问题，而且微波变频加热能耗低。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1是本申请实施例方案涉及的硬件运行环境的终端/装置结构示意图；
图2为本申请低温烹饪装置一实施例的结构示意图；
图3为本申请低温烹饪装置另一实施例的结构示意图；
图4为本申请低温烹饪装置的温度控制方法一实施例的流程示意图。
附图标号说明：
标号 名称 标号 名称
1 非金属外盆 2 金属内胆
3 金属盖 4 第一烹饪液体
41 第二烹饪液体 5 第一通孔
51 第二通孔 6 温度传感器
7 光纤 8 器件
71 荧光陶瓷材料 72 透明区
73 导光件
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”
等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
另外，本申请各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本申请的说明，其本身没有特定的意义。因此，“模块”、“部件”或“单元”可以混合地使用。
如图1所示，图1是本申请实施例方案涉及的硬件运行环境的终端结构示意图。
终端可以以各种形式来实施。例如，本申请中描述的终端可以包括诸如空调器、电视机、电冰箱、洗衣机、热水器、空气净化器、吸尘器等家电设备，也可包括诸如智能音箱、手机、平板电脑、笔记本电脑、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、便捷式媒体播放器(Portable Media Player，PMP)、导航装置、可穿戴设备、智能手环、计步器等终端。
后续描述中将以微波炉为例进行说明，本领域技术人员将理解的是，除了特别用于移动目的的元件之外，根据本申请的实施方式的构造也能够应用于其他诸如智能音箱等终端。
如图1所示，该终端可以包括：处理器1001，例如CPU，网络接口1004，用户接口1003，存储器1005，通信总线1002。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏（Display）、输入单元比如键盘（Keyboard），可选用户接口1003还可以包括标准的有线接口、无线接口。网络接口1004可选的可以包括标准的有线接口、无线接口（如WI-FI接口）。存储器1005可以是高速RAM存储器，也可以是稳定的存储器（non-volatile memory），例如磁盘存储器。存储器1005可选的还可以是独立于前述处理器1001的存储装置。
可选地，终端还可以包括摄像头、RF（Radio Frequency，射频）电路，传感器、音频电路、WiFi模块等等。其中，传感器比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示屏的亮度，接近传感器可在移动终端移动到耳边时，关闭显示屏和/或背光。作为运动传感器的一种，重力加速度传感器可检测各个方向上（一般为三轴）加速度的大小，静止时可检测出重力的大小及方向，可用于识别移动终端姿态的应用（比如横竖屏切换、相关游戏、磁力计姿态校准）、振动识别相关功能（比如计步器、敲击）等；当然，移动终端还可配置陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
本领域技术人员可以理解，图1中示出的终端结构并不构成对终端的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图1所示，作为一种计算机存储介质的存储器1005中可以包括操作系统、网络通信模块、用户接口模块以及计算机可读指令。
在图1所示的终端中，网络接口1004主要用于连接后台服务器，与后台服务器进行数据通信；用户接口1003主要用于连接客户端（用户端），与客户端进行数据通信；而处理器1001可以用于调用存储器1005中存储的计算机可读指令。
基于上述终端硬件结构以及通信网络系统，提出本申请低温烹饪装置的温度控制方法各个实施例。
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请提供一种低温烹饪装置，如图2所示，所述低温烹饪装置包括微波发生装置（图中未示出）和低温烹饪器皿，所述低温烹饪器皿放置于微波发生装置所辐射的微波加热环境中；所述低温烹饪器皿包括非金属外盆1、金属内胆2和金属盖3，所述金属内胆2放置于非金属外盆1内部，所述金属内胆2外壁与非金属外盆1内壁之间填充第一烹饪液体4，金属内胆2内部填充第二烹饪液体41，所述金属盖3封盖于非金属外盆1开口上。
使用金属内胆2与金属盖3结合，并将需要低温烹饪的食物放置其中，利用金属电磁屏蔽效应，使得微波无法直接加热该食物。该金属内胆2与金属盖3的形状一般十分圆滑，曲率较小，不容易产生放电的现象。
微波加热非金属外盆1与金属内胆2之间的第一烹饪液体4，通过热传递加热金属内胆2内部填充的第二烹饪液体41，从而加热金属内胆2内部放置的食物，保证对食物加热的均匀性。通过控制微波加热第一烹饪液体4的温度进而控制烹饪食物的温度，保证烹饪的食物恒定在最适宜的温度进行烹饪。
其中，第一烹饪液体4和第二烹饪液体41可选择水，但是并不限于水，其他可以用于对食物加热的液体都可作为本申请的第一烹饪液体4和第二烹饪液体41。
在本实施例中，通过微波加热非金属外盆1中的第一烹饪液体4，加热后的第一烹饪液体4通过热传递加热金属内胆2中的第二烹饪液体41，进而加热金属内胆2中放置的食物，实现第二烹饪液体41与食物温度一致；微波不直接加热食物，使得食物加热均匀而且温度可控性好，再者使用微波加热，相比传统的发热管、加热水槽，加热效率高。
可选地，在本申请一种低温烹饪装置的一实施例中，如图2至图3所示，所述金属内胆2上开设阻隔微波的第一通孔5，和/或所述金属盖3上开设阻隔微波的第二通孔51。
金属内胆2上开设第一通孔5，可以是在金属内胆2的底部，也可以是在金属内胆2的侧壁，或者底部和侧壁上均开设第一通孔5，所述第一通孔5可以加快非金属外盆1与金属内胆2之间填充的第一烹饪液体4和第二烹饪液体之间的热传递速率，检测并确定第一烹饪液体4和第二烹饪液体41一致，在添加第一烹饪液体4或者第二烹饪液体41的过程中，直接通过所述第一通孔5连通金属内胆2和非金属外盆1，第一烹饪液体4或者第二烹饪液体41一次性填充金属内胆2内部以及金属内胆2与非金属外盆1之间，而无需分别填充第二烹饪液体41到金属内胆2内部以及填充第一烹饪液体4到金属内胆2与非金属外盆1之间。
再者，所述第一通孔5的孔径不能太大，保证微波无法穿透即可，该第一通孔5的孔径在保证微波不穿透的前提下，可以尽可能的大，如此，既保证金属内胆2与金属盖3之间形成的屏蔽空间不漏磁，而且也能加快金属内胆2内部与外部之间的热传递速率，从而使得烹饪的食物加热均匀，提高加热效率，降低能源消耗。
金属盖3上开设第二通孔51，该第二通孔51至少开设一个，该第二通孔51释放被加热的第二烹饪液体41产生的蒸汽，保证低温烹饪器皿内部的气压与外界大气压一致，避免低温烹饪器皿内部气压在加热过程中高于外界大气压，使得金属盖3被冲开，出现漏磁现象。
在本实施例中，通过在金属内胆2上开设第一通孔5，进而加快金属内胆2内部第二烹饪液体41与外部第一烹饪液体4的热传递，使得烹饪的食物加热均匀，提高加热效率，降低能源消耗，再者在金属盖3上开设第二通孔51，避免低温烹饪器皿内部气压在加热过程中高于外界大气压，使得金属盖3被冲开，出现漏磁现象。
可选地，在本申请一种低温烹饪装置的一实施例中，所述低温烹饪装置还设置有检测金属内胆2中低温烹饪食物的温度传感器6。
通过温度传感器6的设置，可以更好的控制微波加热的强度，保证整个低温烹饪过程处于恒温状态，保证低温烹饪的效果。其中温度传感器6可以是热电阻、热电偶或者是光纤类的温度传感器6，只要能实现温度检测均可。温度传感器6检测金属内胆2中第二烹饪液体41的温度，检测并确定热传递/扩散平衡后，第二烹饪液体41的温度和食物温度接近，进而检测得到烹饪的食物的温度，通过该检测温度的反馈，调整微波加热的功率，保证烹饪食物保持在恒温环境中。
可选地，在本申请一种低温烹饪装置的一实施例中，如图3所示，所述温度传感器6的感应端穿过金属盖3上开设的第二通孔51插入金属内胆2中的第二烹饪液体41中。
利用金属盖3上开设的第二通孔51插入温度传感器6，一方面利用温度传感器6检测金属内胆2内部的第二烹饪液体41的温度，另一方面，方便温度传感器6的拆卸，便于清洗金属内胆2和金属盖3。
在本申请的另一实施例中，如图3所示，所述温度传感器包括测温组件和荧光陶瓷材料71，所述荧光陶瓷材料71设置于非金属外盆1底部远离第一烹饪液体4一侧，所述测温组件固定设置于微波发生装置远离放置低温烹饪器皿的器件8一侧。所述测温组件包括传输光信号的光纤7、设置在光纤一端的变送器和设置在光纤另一端的导光件73。所述微波发生装置放置低温烹饪器皿的器件8上设置有透明区72，所述导光件73设置于透明区72远离低温烹饪器皿一侧，所述导光件73建立荧光陶瓷材料71和光纤7之间光通路，所述光纤7中第一光束经导光件73反射到荧光陶瓷材料71上，激发荧光陶瓷材料71，所述荧光陶瓷材料71产生第二光束，经导光件73反射到光纤7中，变送器接收第二光束变送器根据第一光束和第二光束的荧光寿命计算出温度值。
非金属外盆1底部的荧光陶瓷材料71对准器件8上透明区72，其中荧光陶瓷材料71可以通过粘贴、烧结或喷涂等方式设置在非金属外盆1底部，光纤7传输第一光束，蓝色光，通过导光件73反射穿过透明区72照射到荧光陶瓷材料71上，荧光陶瓷材料71被第一光束，蓝色光激发，产生第二光束，红色荧光，该第二光束红色荧光穿过透明区72经导光件73反射后，反射回光纤7，光纤7另一端连接有变送器，通过变送器信号处理计算出温度值。荧光陶瓷材料71为温敏材料，检测并确定材料温度改变后，被激发的第二光束红色荧光寿命将发生改变，变送器根据荧光寿命特性即可解算出温度值。
再者，上述测量所得的温度值为非金属外盆1底部的温度值，由于第二烹饪液体41与非金属外盆1底部接触，检测并确定热传递/扩散平衡后，第二烹饪液体41和低温烹饪食物温度将与非金属外盆1底部的温度接近，进而得到低温烹饪食物的温度。
在本实施例中，通过插入式测温和底部测温两种方式，测量低温烹饪的食物的温度，在保证温度测量准确的同时，方便低温烹饪器皿的清洗。
可选地，在本申请一种低温烹饪装置的一实施例中，所述微波发生装置为微波炉，所述微波发生装置所辐射的微波加热环境为微波炉的内腔，所述微波发生装置放置低温烹饪器皿的器件8为微波炉中的陶瓷底板。
可选地，在本申请一种低温烹饪装置的一实施例中，所述非金属外盆1为塑料、陶瓷材料或者玻璃等，只要是非金属可微波加热的材料均可，在此不作特殊限定。
所述金属内胆2和金属盖3为金属铝材。基于金属铝价格便宜、热导率较高的性能，制作金属内胆2和金属盖3。也可以采用其它金属材料，例如，铜、铁、合金等，制作金属内胆2和金属盖3，只要能够屏蔽微波即可。
本申请还提供一种低温烹饪装置的温度控制方法，如图4所示，所述温度控制方法包括：
步骤S10，获取低温烹饪食物的预设目标温度与实时温度的差值△T，确定所述差值△T所处的数值范围；
目标温度，低温烹饪的食物需要的加热温度，不同的食物的目标温度不一样，例如，温泉蛋的控制条件为65℃，三文鱼的控制条件为52℃，牛肉的控制条件为63℃，酸奶的控制条件为43℃。该目标温度可以用户根据不同的食物输入不同的温度数值，也可以微波炉温度控制系统预先存储不同食物的温度数值，用户根据食物的种类选择对应的温度数值，或者通过移动终端输入或者选择对应的温度数值。
实时温度，温度传感器检测到的金属内胆内低温烹饪食物某一具体时刻的温度数值，即该食物的温度。△T为目标温度的数值减去实时温度的数值得到的差值，即控温误差。数值范围，一般包含一个最大值和一个最小值，最大值和最小值之间的数值均属于该数值范围。温度传感器实时测量低温烹饪食物的温度，并将测量得到的温度数值与该低温烹饪食物的目标温度数值进行比较，得到控温误差，根据该控温误差的数值，判断该控温误差所处的数值范围。
首先，将低温烹饪食物放入到金属内胆内，并浸没在第二烹饪液体中，盖好金属盖，将该装有低温烹饪食物的低温烹饪器皿放置到微波发生装置中，即微波炉的内腔中，设置该低温烹饪食物对应的低温烹饪的目标温度，检测低温烹饪食物的实时温度，并计算目标温度与实时温度的差值△T，确定该差值△T所处的数值范围。
步骤S20，控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热，其中差值△T越大，所处的数值范围对应的加热功率越大；
不同的数值范围对应不同的加热功率，数值范围根据微波炉的硬件条件以及控温的精确程度进行设定。一般来说，差值△T越大，即实时温度与目标温度的差值越大，那么该差值△T所处的数值范围对应一相对较大的加热功率，以便尽快的使得实时温度达到目标温度，检测并确定差值△T较小，即实时温度与目标温度的差值较小，那么该差值△T所处的数值范围对应一相对较小的加热功率，保证加热的均匀性。
步骤S30，检测并确定实时温度首次达到目标温度，计算低温烹饪食物的加热时长；
在实时温度达到目标温度时，即该低温烹饪食物的温度达到低温烹饪需要的温度，此时进入恒温阶段，开始记录加热时长，即记录该低温烹饪食物在目标温度下烹饪的时长。
步骤S40，检测并确定累计加热时长达到预设值，停止对低温烹饪食物进行微波加热。
预设值，低温烹饪的时间长度，不同的食物低温烹饪的时长不一，例如温泉蛋的控制条件为恒温1.5h，三文鱼的控制条件为恒温40min，牛肉的控制条件为为恒温1.5h，酸奶的控制条件为恒温7h。
从第一次达到目标温度计时开始到累计加热时长达到预设值，即低温烹饪完成，此时，停止对低温烹饪食物进行微波加热。
在本实施例中，通过计算差值△T，并判断差值△T所处的数值范围对应的加热功率，进而采用对应加热功率对低温烹饪食物进行加热，保证低温烹饪整个恒温过程加热的均匀性，而且微波变频加热降低加热能耗。
在步骤S20中所述控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热包括：
步骤S50，检测并确定所述差值△T处于数值范围T1 ≤ △T < T2，调整加热功率为第一加热功率P1进行微波加热，其中T1和T2为第一参数和第二参数。
T1和T2的数值根据微波炉的硬件条件以及控温的精确程度进行设定，T1和T2之间的差值越小，控温的精确程度越高，T1和T2的数值越大，实时温度与目标温度的差距越大。第一加热功率P1，根据T1和T2的数值大小适应调整第一加热功率P1的大小。例如，检测并确定T1和T2数值较大，即实时温度偏离目标温度的程度较大，使用较大功率进行加热，使得实时温度尽快达到目标温度，以保证该食物处于恒温状态。检测并确定T1和T2数值较小，即实时温度偏离目标温度的程度不大，使用较小功率进行加热，低功率加热，保证加热的均匀性。
T1和T2取值不同，对应不同的第一加热功率P1。例如，检测并确定T1为0.1℃，T2为2℃，即当0.1℃≤△T<2℃，微波炉加热功率为P1，P1为100W；检测并确定T1为2℃，T2为4℃，即2℃≤△T<4℃，微波炉加热功率为P1，P1为200W；检测并确定T1为4℃，T2为6℃，即4℃≤△T<6℃，微波炉加热功率为P1，P1为300W；检测并确定T1为6℃，T2为8℃，即6℃≤△T<8℃时，微波炉加热功率为P1，P1为400W等等。
根据差值△T处于数值范围T1 ≤ △T < T2，对应调整微波炉的第一加热功率P1，使用调整后的第一加热功率P1进行加热，直至累计时间达到预设值。实现连续低功率变频控制，改善加热的均匀性、微波聚焦的问题。
在步骤S50调整加热功率为第一加热功率P1进行微波加热之后，包括：
步骤S60，检测并确定所述差值△T处于数值范围T3 ≤ △T < T4，加热功率不变，其中T3和T4为第三参数和第四参数，T4≤ T1；
对于实时温度与目标温度的差值很小，属于温度测量的误差范围之内，此时，微波炉的加热功率不变。例如，检测并确定T3为-0.1℃，T4为0.1℃，即-0.1℃≤△T<0.1℃，微波炉加热功率不变，这样使微波炉不会频繁开启工作，可提高继电器的使用寿命。
步骤S70，检测并确定所述差值△T处于数值范围△T < T5，停止微波加热，其中T5为第五参数，T5≤T3。
例如，T5取值为-0.1℃时，如果目标温度与实时温度的差值小于-0.1℃，即实时温度比目标温度高，此时，微波炉停止加热操作，避免实时温度高于目标温度。
为辅助理解上述低温烹饪装置的温度控制方法恒温变频控制过程，现举一实例。假设目标温度为Tgoal，实时温度为T，控温误差为：△T=Tgoal -T。
检测并确定△T<-0.1℃，微波炉输出功率为P0，即微波炉停止加热；
检测并确定-0.1℃≤△T<0.1℃，微波炉加热功率不变；
检测并确定0.1℃≤△T<2℃，微波炉第一加热功率为100W；
检测并确定2℃≤△T<4℃，微波炉第一加热功率为200W；
检测并确定4℃≤△T<6℃，微波炉第一加热功率为300W；
检测并确定6℃≤△T<8℃，微波炉第一加热功率为400W；
检测并确定8℃≤△T<10℃，微波炉第一加热功率为500W；
检测并确定10℃≤△T<12℃，微波炉第一加热功率为600W；
检测并确定12℃≤△T<14℃，微波炉第一加热功率为700W；
检测并确定14℃≤△T<16℃，微波炉第一加热功率为800W；
检测并确定16℃≤△T<18℃，微波炉第一加热功率为900W；
检测并确定18℃≤△T时，微波炉第一输出功率为1000W。
检测并确定-0.1℃≤△T<0.1℃，微波炉输出功率不变，这样使微波炉不会频繁开启工作，可提高继电器的寿命。检测并确定△T不处于-0.1℃≤△T<0.1℃，根据实时温度与目标温度差值的不同变频控制微波炉加热，实现连续低功率控制，改善均匀性、微波聚焦的问题，而且微波变频加热能耗低。
以三文鱼低温烹饪为例，其控制条件为52℃恒温40min，食物的实时温度被恒定在52℃左右，控温精度为±0.5℃，通过上述低温烹饪装置的温度控制方法，计算得到最终的能耗非常低，约为0.1度电。
本申请还提供一种微波炉，所述微波炉包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机可读指令，所述计算机可读指令被所述处理器执行时实现上述的低温烹饪装置的温度控制方法的步骤。
本申请还提供一种终端，所述终端包括：存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令，所述计算机可读指令被所述处理器执行时实现上述的低温烹饪装置的温度控制方法的步骤。
本申请还提供一种存储介质（即计算机可读存储介质），其特征在于，所述存储介质上存储有计算机可读指令，所述计算机可读指令被处理器执行时实现上述的低温烹饪装置的温度控制方法的步骤。计算机可读存储介质可以为非易失性可读存储介质。
在本申请微波炉、终端和存储介质的实施例中，包含了上述低温烹饪装置的温度控制方法各实施例的全部技术特征，说明书拓展和解释内容与上述低温烹饪装置的温度控制方法各实施例基本相同，在此不做赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (18)

  1. 一种低温烹饪装置，其特征在于，所述低温烹饪装置包括微波发生装置和低温烹饪器皿，所述低温烹饪器皿放置于微波发生装置的微波加热环境中；所述低温烹饪器皿包括非金属外盆、金属内胆和金属盖，所述金属内胆放置于非金属外盆内部，所述金属内胆外壁与非金属外盆内壁之间填充第一烹饪液体，金属内胆内部填充第二烹饪液体，所述金属盖封盖于非金属外盆开口上；
    所述低温烹饪装置还设置有检测金属内胆中低温烹饪食物的温度传感器。
  2. 如权利要求1所述的低温烹饪装置，其特征在于，所述微波发生装置为微波炉，所述微波发生装置所辐射的微波加热环境为微波炉的内腔；所述非金属外盆为塑料或者陶瓷材料；所述金属内胆和金属盖为金属铝材。
  3. 如权利要求1所述的低温烹饪装置，其特征在于，所述金属内胆上开设阻隔微波的第一通孔，和/或所述金属盖上开设阻隔微波的第二通孔，所述温度传感器的感应端穿过金属盖上开设的第二通孔插入金属内胆中的第二烹饪液体中。
  4. 如权利要求3所述的低温烹饪装置，其特征在于，所述微波发生装置为微波炉，所述微波发生装置所辐射的微波加热环境为微波炉的内腔；所述非金属外盆为塑料或者陶瓷材料；所述金属内胆和金属盖为金属铝材。
  5. 如权利要求1所述的低温烹饪装置，其特征在于，所述温度传感器包括测温组件和荧光陶瓷材料，所述荧光陶瓷材料设置于非金属外盆底部远离第一烹饪液体一侧，所述测温组件固定设置于微波发生装置远离放置低温烹饪器皿的器件一侧；所述测温组件包括传输光信号的光纤、设置在光纤一端的变送器和设置在光纤另一端的导光件；所述微波发生装置放置低温烹饪器皿的器件上设置有透明区，所述导光件设置于透明区远离低温烹饪器皿一侧，所述导光件建立荧光陶瓷材料和光纤之间光通路，所述光纤中第一光束经导光件反射到荧光陶瓷材料上，激发荧光陶瓷材料，所述荧光陶瓷材料产生第二光束，经导光件反射到光纤中。
  6. 如权利要求5所述的低温烹饪装置，其特征在于，所述微波发生装置为微波炉，所述微波发生装置所辐射的微波加热环境为微波炉的内腔；所述非金属外盆为塑料或者陶瓷材料；所述金属内胆和金属盖为金属铝材。
  7. 一种低温烹饪装置的温度控制方法，其特征在于，所述低温烹饪装置包括微波发生装置和低温烹饪器皿，所述低温烹饪器皿包括非金属外盆、金属内胆和金属盖，所述金属内胆放置于非金属外盆内部，所述低温烹饪装置还设置有检测金属内胆中低温烹饪食物的温度传感器；
    所述温度控制方法包括：
    获取低温烹饪食物的预设目标温度与实时温度的差值△T，确定所述差值△T所处的数值范围；
    控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热，其中差值△T越大，所处的数值范围对应的加热功率越大；
    检测并确定实时温度首次达到目标温度，计算低温烹饪食物的加热时长；
    检测并确定累计加热时长达到预设值，停止对低温烹饪食物进行微波加热。
  8. 如权利要求7所述的低温烹饪装置的温度控制方法，其特征在于，所述控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热的步骤，包括：
    检测并确定所述差值△T处于数值范围T1 ≤ △T < T2，-调整加热功率为第一加热功率P1进行微波加热，其中T1和T2为第一参数和第二参数。
  9. 如权利要求8所述的低温烹饪装置的温度控制方法，其特征在于，所述调整加热功率为第一加热功率P1进行微波加热的步骤之后包括：
    检测并确定所述差值△T处于数值范围T3 ≤ △T < T4，加热功率不变，其中T3和T4为第三参数和第四参数，T4≤ T1；
    检测并确定所述差值△T处于数值范围△T < T5，停止微波加热，其中T5为第五参数，T5≤T3。
  10. 一种终端，其特征在于，所述终端包括：存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令，所述计算机可读指令被所述处理器执行时实现如下的步骤：
    获取低温烹饪食物的预设目标温度与实时温度的差值△T，确定所述差值△T所处的数值范围；
    控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热，其中差值△T越大，所处的数值范围对应的加热功率越大；
    检测并确定实时温度首次达到目标温度，计算低温烹饪食物的加热时长；
    检测并确定累计加热时长达到预设值，停止对低温烹饪食物进行微波加热。
  11. 如权利要求10所述的终端，其特征在于，所述控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热的步骤，包括：
    检测并确定所述差值△T处于数值范围T1 ≤ △T < T2，调整加热功率为第一加热功率P1进行微波加热，其中T1和T2为第一参数和第二参数。
  12. 如权利要求11所述的终端，其特征在于，所述调整加热功率为第一加热功率P1进行微波加热的步骤之后，所述计算机可读指令被所述处理器执行时实现如下的步骤：
    检测并确定所述差值△T处于数值范围T3 ≤ △T < T4，加热功率不变，其中T3和T4为第三参数和第四参数，T4≤ T1；
    检测并确定所述差值△T处于数值范围△T < T5，停止微波加热，其中T5为第五参数，T5≤T3。
  13. 一种微波炉，其特征在于，所述微波炉包括：存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令，所述计算机可读指令被所述处理器执行时实现下的步骤：
    获取低温烹饪食物的预设目标温度与实时温度的差值△T，确定所述差值△T所处的数值范围；
    控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热，其中差值△T越大，所处的数值范围对应的加热功率越大；
    检测并确定实时温度首次达到目标温度，计算低温烹饪食物的加热时长；
    检测并确定累计加热时长达到预设值，停止对低温烹饪食物进行微波加热。
  14. 如权利要求13所述的微波炉，其特征在于，所述控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热的步骤，包括：
    检测并确定所述差值△T处于数值范围T1 ≤ △T < T2，调整加热功率为第一加热功率P1进行微波加热，其中T1和T2为第一参数和第二参数。
  15. 如权利要求14所述的微波炉，其特征在于，所述调整加热功率为第一加热功率P1进行微波加热的步骤之后，所述计算机可读指令被所述处理器执行时实现如下的步骤：
    检测并确定所述差值△T处于数值范围T3 ≤ △T < T4，加热功率不变，其中T3和T4为第三参数和第四参数，T4≤ T1；
    检测并确定所述差值△T处于数值范围△T < T5，停止微波加热，其中T5为第五参数，T5≤T3。
  16. 一种存储介质，其特征在于，所述存储介质上存储有计算机可读指令，所述计算机可读指令被处理器执行时实现如下的步骤：
    获取低温烹饪食物的预设目标温度与实时温度的差值△T，确定所述差值△T所处的数值范围；
    控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热，其中差值△T越大，所处的数值范围对应的加热功率越大；
    检测并确定实时温度首次达到目标温度，计算低温烹饪食物的加热时长；
    检测并确定累计加热时长达到预设值，停止对低温烹饪食物进行微波加热。
  17. 如权利要求16所述的存储介质，其特征在于，所述控制微波发生装置根据所述差值△T所处的数值范围对应的加热功率对低温烹饪器皿进行微波加热的步骤，包括：
    检测并确定所述差值△T处于数值范围T1 ≤ △T < T2，调整加热功率为第一加热功率P1进行微波加热，其中T1和T2为第一参数和第二参数。
  18. 如权利要求17所述的存储介质，其特征在于，所述调整加热功率为第一加热功率P1进行微波加热的步骤之后，所述计算机可读指令被所述处理器执行时实现如下的步骤：
    检测并确定所述差值△T处于数值范围T3 ≤ △T < T4，加热功率不变，其中T3和T4为第三参数和第四参数，T4≤ T1；
    检测并确定所述差值△T处于数值范围△T < T5，停止微波加热，其中T5为第五参数，T5≤T3。
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