Double-cavity oven and double-cavity alternate heating control method and device

Abstract

The invention discloses a double-cavity oven and a double-cavity alternate heating control method and device, and relates to the technical field of ovens, the double-cavity alternate heating control method is applied to the double-cavity oven comprising a first cavity and a second cavity, and according to the method, heat transfer Q1 and compensation time T3 of the two cavities are calculated in real time; the heating duration is dynamically adjusted according to the thermal coupling effect between the cavities, different time distribution strategies are adopted for different scenes of preset total time Ta and Tb of the two cavities, when Ta is equal to Tb, load balancing is achieved through alternate heating, when Ta is larger than Tb, the adaptability of heat transfer and time distribution is ensured by correcting Q1 parameters, and when Ta is smaller than Tb, the heat transfer efficiency is improved. And alternately executing the heating time of the two cavities until the first cavity finishes heating, and continuously heating the second cavity for remaining time. According to the double-cavity alternate heating control method, the problem that temperature control is not accurate when the upper cavity and the lower cavity of the double-cavity oven alternately work is solved.

Description

Technical Field

[0001] This application relates to the technical field of ovens, and particularly to a double-chamber oven, a method and a device for controlling the alternating heating of double chambers. Background Art

[0002] Currently, a double-chamber oven has three working modes: the upper chamber (also called the first chamber) works alone, the lower chamber (also called the second chamber) works alone, and the upper and lower chambers work alternately. According to the baking mode, heating time / temperature set by the user, the heating tubes of the upper and lower chambers are controlled to work. That is, when the upper chamber works alone, the heating tubes of the upper chamber are controlled to work; when the lower chamber works alone, the heating tubes of the lower chamber are controlled to work; when the upper and lower chambers work alternately, the heating tubes of the upper and lower chambers are controlled to work alternately. In the process of implementing the present invention, the inventors found that at least the following problems exist:

[0003] When the upper and lower chambers work alternately, due to different set temperatures / times, the start times of the upper and lower chambers are different, and the temperatures of the upper and lower chambers are different, heat transfer will occur between the upper and lower chambers. Affected by the amount of heat transfer, and still relying on the temperature / time set by the user for control, the temperature will be inaccurate. For example, when the user sets the temperature of the upper chamber to 150°C, but due to heat transfer, the actual temperature of the upper chamber can reach 160°C. Summary of the Invention

[0004] The purpose of this application is to provide a double-chamber oven, a method and a device for controlling the alternating heating of double chambers, which solve the problem of inaccurate temperature control when the upper and lower chambers of the double-chamber oven work alternately.

[0005] To achieve the above purpose, this application provides a method for controlling the alternating heating of double chambers, which is applied to a double-chamber oven including a first chamber and a second chamber, and includes:

[0006] Set the first target temperature of the first chamber and the preset total time T a , the second target temperature of the second chamber and the preset total time T b ;

[0007] Calculate the duration T1 required for the first chamber to heat to the first target temperature according to the difference between the current temperature of the first chamber and the first target temperature, and calculate the heat Q1 = Q·T1·λ transferred to the second chamber within the time T1 based on the heating amount Q per unit time of the first chamber and the heat transfer coefficient λ;

[0008] Calculate the original heating duration T2 required for the second chamber to heat to the second target temperature according to the difference between the current temperature of the second chamber and the second target temperature, and calculate the compensation time T3 = Q1 / Q2 based on Q1 and the heating amount Q2 per unit time of the second chamber, and obtain the actual heating duration T2 - T3 for the second chamber to heat to the second target temperature;

[0009] When T a is equal to Tb When, alternately execute the first cavity heating T1 / T a time and the second cavity heating (T2 - T3) / T b time until the heating of the first cavity and the second cavity ends;

[0010] When T a is greater than T b , correct Q1 = Q·T1 / T a ·T b ·λ, alternately execute the first cavity heating T1 / T a time and the second cavity heating (T2 - T3) / T b time until after the heating of the second cavity ends, the first cavity continues to heat for the remaining time T1 - T1 / T a ·T b ;

[0011] When T a is less than T b , alternately execute the first cavity heating T1 / T a time and the second cavity heating (T2 - T3) / T b time until after the heating of the first cavity ends, the second cavity continues to heat for the remaining time (T2 - T3) - (T2 - T3) / T b ·T a .

[0012] In some embodiments, before the step of calculating the heat quantity Q1 = Q·T1·λ transferred to the second cavity within the T1 time based on the heat quantity Q per unit time of the first cavity and the heat transfer coefficient λ, it further includes:

[0013] Obtain the thermal conductivity k, thickness d, and contact area S of the physical isolation material between the first cavity and the second cavity;

[0014] Calculate the heat transfer coefficient λ according to λ = (k⋅S) / d.

[0015] In some embodiments, the step of calculating the duration T1 required for the first cavity to be heated to the first target temperature according to the difference between the current temperature of the first cavity and the first target temperature includes:

[0016] Obtain the current temperature of the first cavity;

[0017] Judge whether it is established that the current temperature of the first cavity is less than the first target temperature. If so, start heating and calculate the duration T1 required for the first cavity to be heated to the first target temperature. If not, stop heating and set the duration T1 required for the first cavity to be heated to the first target temperature to zero.

[0018] In some embodiments, the dual - cavity alternating heating control method further includes:

[0019] Calculate the real-time temperature difference between the first chamber and the second chamber according to the current temperature of the first chamber and the current temperature of the second chamber;

[0020] When the real-time temperature difference between the first chamber and the second chamber exceeds the preset threshold, stop heating and trigger an artificial intervention instruction.

[0021] In some embodiments, the dual-chamber alternating heating control method further includes:

[0022] When the cumulative actual heating time of the first chamber reaches the duration T1 required for the first chamber to be heated to the first target temperature or the cumulative actual heating time of the second chamber reaches the actual heating duration T2 - T3 required for the second chamber to be heated to the second target temperature, forcibly terminate the heating operation of the corresponding chamber and trigger a temperature timeout alarm.

[0023] In some embodiments, the dual-chamber alternating heating control method further includes:

[0024] Obtain the types of heating objects in the first chamber and the second chamber;

[0025] Dynamically adjust the first target temperature and the preset total time T of the first chamber according to the type of the heating object in the first chamber a , and dynamically adjust the second target temperature and the preset total time T of the second chamber according to the type of the heating object in the second chamber b .

[0026] This application also provides a dual-chamber alternating heating control device, which adopts the dual-chamber alternating heating control method of any one of the above, and the dual-chamber alternating heating control device includes:

[0027] A setting module for setting the first target temperature and the preset total time T of the first chamber a , the second target temperature and the preset total time T of the second chamber b ;

[0028] A first-chamber heating calculation module for calculating the duration T1 required for the first chamber to be heated to the first target temperature according to the difference between the current temperature of the first chamber and the first target temperature, and calculating the heat Q1 = Q·T1·λ transferred to the second chamber within the time T1 based on the unit time heating amount Q and the heat transfer coefficient λ of the first chamber;

[0029] A second-chamber heating calculation module for calculating the original heating duration T2 required for the second chamber to be heated to the second target temperature according to the difference between the current temperature of the second chamber and the second target temperature, and calculating the compensation time T3 = Q1 / Q2 based on Q1 and the unit time heating amount Q2 of the second chamber, to obtain the actual heating duration T2 - T3 for the second chamber to be heated to the second target temperature;

[0030] A control module for when T a is equal to T bWhen, alternately execute the first cavity heating T1 / T a time and the second cavity heating (T2 - T3) / T b time until the heating of the first cavity and the second cavity ends; it is also used when T a is greater than T b to correct Q1 = Q·T1 / T a ·T b ·λ, alternately execute the first cavity heating T1 / T a time and the second cavity heating (T2 - T3) / T b time until after the heating of the second cavity ends, the first cavity continues to heat for the remaining time T1 - T1 / T a ·T b ; it is also used when T a is less than T b to alternately execute the first cavity heating T1 / T a time and the second cavity heating (T2 - T3) / T b time until after the heating of the first cavity ends, the second cavity continues to heat for the remaining time (T2 - T3) - (T2 - T3) / T b ·T a .

[0031] In some embodiments, the dual - cavity alternating heating control device further includes:

[0032] A first sensor, disposed in the first cavity and communicatively connected to the control module, for detecting the current temperature of the first cavity;

[0033] A second sensor, disposed in the second cavity and communicatively connected to the control module, for detecting the current temperature of the second cavity;

[0034] A first heating module, disposed in the first cavity and communicatively connected to the control module, for heating the first cavity;

[0035] A second heating module, disposed in the second cavity and communicatively connected to the control module, for heating the second cavity.

[0036] In some embodiments, the first sensor and the second sensor are thermocouples or infrared temperature sensors;

[0037] The first heating module and the second heating module are one of a resistance wire heater, an infrared heating tube, or an electromagnetic induction heater.

[0038] This application also provides a double - cavity oven, including a first cavity and a second cavity, and further including the dual - cavity alternating heating control device of any one of the above, and the dual - cavity alternating heating control device is used for alternately heating the first cavity and the second cavity.

[0039] Compared with the above background art, the dual-chamber alternating heating control method provided by the embodiments of the present application is applied to a dual-chamber oven including a first chamber and a second chamber, and includes: setting a first target temperature of the first chamber and a preset total time T a , a second target temperature of the second chamber and a preset total time T b ; calculating the duration T1 required for the first chamber to heat to the first target temperature according to the difference between the current temperature of the first chamber and the first target temperature, and calculating the heat Q1 transferred to the second chamber within the time T1 based on the heating amount Q per unit time of the first chamber and the heat transfer coefficient λ, where Q1 = Q·T1·λ; calculating the original heating duration T2 required for the second chamber to heat to the second target temperature according to the difference between the current temperature of the second chamber and the second target temperature, and calculating the compensation time T3 = Q1 / Q2 based on Q1 and the heating amount Q2 per unit time of the second chamber, to obtain the actual heating duration T2 - T3 for the second chamber to heat to the second target temperature; when T a is equal to T b , alternately execute heating of the first chamber for T1 / T a time and heating of the second chamber for (T2 - T3) / T b time until the heating of the first chamber and the second chamber ends; when T a is greater than T b , correct Q1 = Q·T1 / T a ·T b ·λ, alternately execute heating of the first chamber for T1 / T a time and heating of the second chamber for (T2 - T3) / T b time until after the heating of the second chamber ends, the first chamber continues to heat for the remaining time T1 - T1 / T a ·T b ; when T a is less than T b , alternately execute heating of the first chamber for T1 / T a time and heating of the second chamber for (T2 - T3) / T b time until after the heating of the first chamber ends, the second chamber continues to heat for the remaining time (T2 - T3) - (T2 - T3) / T b ·T a .

[0040] The dual-chamber alternating heating control method set in this way has the following beneficial effects mainly including:

[0041] First, by calculating the heat transfer between the two cavities in real time (Q1 = Q·T1·λ) and the compensation time (T3 = Q1 / Q2), the system can dynamically adjust the heating duration according to the thermal coupling effect between the cavities, effectively reducing heat waste. For example, when the first cavity transfers heat to the second cavity, the heating requirement of the second cavity is automatically shortened through the compensation time T3, avoiding overshoot or redundant energy consumption caused by heat superposition in traditional dual-cavity devices, achieving precise temperature control of each cavity, and improving the overall energy efficiency ratio.

[0042] Second, for different scenarios of the preset total time T a 、T b (T a equals T b 、T a is greater than T b 、T a is less than T b ), a differential time allocation strategy is adopted. For example, when T a equals T b , alternating heating is used to achieve load balancing, avoiding both cavities entering the high-power heating state simultaneously, reducing the risk of local overheating of the device. Another example is when T a is greater than T b , it means that there is a heating compensation effect between the two cavities only within the time of T b . Then, by modifying the Q1 parameter (Q1 = Q·T1 / T a ·T b ·λ), the adaptability of heat transfer and time allocation is ensured, avoiding energy waste caused by mismatched heating cycles of the cavities. Another example is when T a is less than T b , it means that there is a heating compensation effect between the two cavities only within the time of T a . In this case, the heating time of the two cavities is alternately executed until the first cavity finishes heating, and then the second cavity continues to heat the remaining time, giving priority to ensuring that the first cavity completes heating on time, while the second cavity makes up for it through the remaining time, avoiding timeout due to waiting for the first cavity.

[0043] In summary, the above solutions solve the problems of low energy efficiency, insufficient temperature control accuracy, and short device life in traditional dual-cavity ovens. Brief Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0045] Figure 1This is the flowchart of the dual-chamber alternating heating control method in the embodiments of the present application;

[0046] Figure 2 This is the control block diagram of the dual-chamber alternating heating control device in the embodiments of the present application.

[0047] Among them:

[0048] 10 - Setting module, 20 - First-chamber heating calculation module, 30 - Second-chamber heating calculation module, 40 - Control module. Specific implementation manners

[0049] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0050] To enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0051] Please refer to Figure 1 , the dual-chamber alternating heating control method provided by the embodiments of the present application is applied to a dual-chamber oven including a first chamber and a second chamber, and includes:

[0052] S1: Set the first target temperature and the preset total time T of the first chamber a , the second target temperature and the preset total time T of the second chamber b ;

[0053] S2: Calculate the duration T1 required for the first chamber to heat to the first target temperature according to the difference between the current temperature of the first chamber and the first target temperature, and calculate the heat Q1 = Q·T1·λ transferred to the second chamber within the time T1 based on the heating amount Q per unit time of the first chamber and the heat transfer coefficient λ;

[0054] S3: Calculate the original heating duration T2 required for the second chamber to heat to the second target temperature according to the difference between the current temperature of the second chamber and the second target temperature, and calculate the compensation time T3 = Q1 / Q2 based on Q1 and the heating amount Q2 per unit time of the second chamber, and obtain the actual heating duration T2 - T3 for the second chamber to heat to the second target temperature;

[0055] S4: When T a is equal to T b , alternately execute the first chamber heating for T1 / T a time and the second chamber heating for (T2 - T3) / T bTime until the heating of the first chamber and the second chamber is completed; when T a is greater than T b , correct Q1 = Q·T1 / T a ·T b ·λ, alternately execute the heating time of the first chamber T1 / T a and the heating time of the second chamber (T2 - T3) / T b until after the heating of the second chamber is completed, the first chamber continues to heat for the remaining time T1 - T1 / T a ·T b ; when T a is less than T b , alternately execute the heating time of the first chamber T1 / T a and the heating time of the second chamber (T2 - T3) / T b until after the heating of the first chamber is completed, the second chamber continues to heat for the remaining time (T2 - T3) - (T2 - T3) / T b ·T a .

[0056] It should be noted that T1 / T a is the heating time per unit time of the first chamber, and (T2 - T3) / T b is the heating time per unit time of the second chamber. Since the heating elements in the first chamber and the second chamber do not heat continuously during the heating process, they heat in cycles, and the unit time is used as the cycle time. For example, the heating time per unit time refers to the working time required by the heating element in one minute. The preset total time is the working time set by the user and is a known value. The heating amount per unit time is related to the size of the chamber and the power of the heating tube and is also a known value.

[0057] On the one hand, by calculating the heat transfer (Q1 = Q·T1·λ) and compensation time (T3 = Q1 / Q2) between the two chambers in real time, the system can dynamically adjust the heating duration according to the thermal coupling effect between the chambers, effectively reducing heat waste. For example, when the first chamber transfers heat to the second chamber, the heating demand of the second chamber is automatically shortened through the compensation time T3, avoiding overshoot or redundant energy consumption caused by heat superposition in traditional double-chamber devices, achieving precise temperature control of each chamber, and improving the overall energy efficiency ratio.

[0058] On the other hand, for different scenarios of the preset total time T a , T b (T a equals T b , T a is greater than T b , T a is less than T b ), adopt a differential time allocation strategy. For example, when T a equals T b, Alternating heating is used to achieve load balancing, avoiding the two cavities entering the high-power heating state simultaneously, reducing the risk of local overheating of the equipment. For another example, when T a is greater than T b , it indicates that there is a heating compensation effect between the two cavities only within the time of T b . Then, by correcting the parameter Q1 (Q1 = Q·T1 / T a ·T b ·λ), the adaptability of heat transfer and time allocation is ensured, avoiding energy waste caused by mismatched heating cycles of the cavities. For another example, when T a is less than T b , it indicates that there is a heating compensation effect between the two cavities only within the time of T a . In this case, the heating times of the two cavities are alternately executed until the first cavity finishes heating, and then the second cavity continues to heat for the remaining time. This preferentially ensures that the first cavity completes heating on time, and the second cavity makes up for the remaining time, avoiding its own timeout due to waiting for the first cavity.

[0059] In summary, the above solution solves the problems of low energy efficiency, insufficient temperature control accuracy, and short equipment life existing in traditional double-cavity ovens.

[0060] It should be noted that the dual-cavity alternating heating control method provided in the embodiments of the present application is applied to a double-cavity oven, which is generally for household use and allows a maximum power of 2200W. Its heating method is two-cavity alternating heating, avoiding damage to the oven caused by the two cavities running simultaneously exceeding the allowed maximum power.

[0061] In some embodiments, before the step of calculating the heat Q1 transferred to the second cavity within the T1 time based on the heating quantity Q per unit time of the first cavity and the heat transfer coefficient λ, it further includes:

[0062] Obtaining the thermal conductivity k, thickness d, and contact area S of the physical isolation material between the first cavity and the second cavity;

[0063] Calculating the heat transfer coefficient λ according to λ = (k⋅S) / d.

[0064] It should be noted that the heat transfer coefficient λ between the first cavity and the second cavity is related to the thermal conductivity k, thickness d, and contact area S of the physical isolation material between the first cavity and the second cavity. Among them, the thermal conductivity k is an inherent property of the material, representing the heat passing through a unit area per unit time under a unit temperature gradient. The higher the thermal conductivity, the stronger the heat conduction ability of the material, and the larger the heat transfer coefficient λ between the cavities. The thickness d is inversely proportional to the heat transfer coefficient λ. The thinner the material (the smaller d), the larger the total heat transfer coefficient λ. The contact area S is directly proportional to the heat transfer coefficient λ. Increasing the contact area can increase the total amount of heat transfer per unit time.

[0065] This formula indicates that by selecting low - thermal - conductivity materials, reducing the contact area, or increasing the thickness, the heat transfer efficiency between cavities can be effectively reduced, facilitating the improvement of temperature control accuracy.

[0066] In some embodiments, the step of calculating the duration T1 required for heating the first cavity to the first target temperature based on the difference between the current temperature and the first target temperature of the first cavity includes:

[0067] Obtain the current temperature of the first cavity;

[0068] Determine whether it holds that the current temperature of the first cavity is less than the first target temperature. If so, start heating and calculate the duration T1 required for heating the first cavity to the first target temperature. If not, stop heating and set the duration T1 required for heating the first cavity to the first target temperature to zero.

[0069] Of course, according to actual needs, the current temperature of the first cavity can be detected by a thermocouple or an infrared temperature sensor in the first cavity. By judging the magnitude relationship between the current temperature and the first target temperature of the first cavity, it is determined whether to execute the step of starting heating and calculating the duration T1 required for heating the first cavity to the first target temperature.

[0070] In this way, by continuously obtaining the current temperature of the first cavity through the temperature sensor, it is ensured that the heating decision is based on the actual working conditions, avoiding temperature overshoot or insufficiency caused by traditional timed heating. When the temperature of the first cavity has reached the standard (T1 is set to zero), heating is immediately stopped, which can reduce the ineffective power consumption by about 15% - 30% compared with the fixed - cycle heating mode.

[0071] In some embodiments, the dual - cavity alternating heating control method further includes:

[0072] Calculate the real - time temperature difference between the first cavity and the second cavity according to the current temperature of the first cavity and the current temperature of the second cavity;

[0073] When the real - time temperature difference between the first cavity and the second cavity exceeds a preset threshold, stop heating and trigger an artificial intervention instruction.

[0074] It can be understood that by real - time monitoring the temperature difference (ΔT) between the two cavities, when the temperature difference exceeds the preset threshold, the system automatically stops heating and triggers artificial intervention. This mechanism can avoid thermal stress concentration caused by too large a temperature gradient. By timely intervention, the risk of thermal stress damage can be reduced by 30% - 50%.

[0075] When the temperature sensor is abnormal or the algorithm fails, the temperature difference threshold triggers forced shutdown to prevent equipment damage.

[0076] Moreover, the artificial intervention instruction can be extended to a multi - level response mechanism. For example:

[0077] The temperature difference range between the two chambers is 10~20°C: Automatically adjust the time slice allocation weight;

[0078] The temperature difference range between the two chambers is 20~30°C: Pause heating and send an alarm;

[0079] The temperature difference range between the two chambers is greater than 30°C: Cut off the power supply and start the cooling system associated with the oven.

[0080] In some embodiments, the dual-chamber alternating heating control method further includes:

[0081] When the cumulative actual heating time of the first chamber reaches the duration T1 required for the first chamber to be heated to the first target temperature or the cumulative actual heating time of the second chamber reaches the actual heating duration T2 - T3 required for the second chamber to be heated to the second target temperature, forcibly terminate the heating operation of the corresponding chamber and trigger a temperature timeout alarm.

[0082] In the dual-chamber heating control system, setting the forced termination of heating and the timeout alarm mechanism (i.e., when the cumulative actual heating time of any chamber reaches the duration required for the chamber to be heated to the corresponding target temperature, terminate the operation and alarm), the beneficial effects at least include: It can avoid the risk of infinite heating caused by sensor failure or algorithm misjudgment; at the same time, forcibly terminating heating can prevent material thermal fatigue or heating element burnout caused by long-term overloading operation. In addition, when the heating time reaches the preset value, it indicates that the target temperature has been reached or the system is abnormal, and terminating heating can reduce redundant energy consumption.

[0083] In some embodiments, the dual-chamber alternating heating control method further includes:

[0084] Obtain the types of heating objects in the first chamber and the second chamber;

[0085] Dynamically adjust the first target temperature and the preset total time T of the first chamber according to the type of heating object in the first chamber a and dynamically adjust the second target temperature and the preset total time T of the second chamber according to the type of heating object in the second chamber b .

[0086] It should be noted that according to different types of heating objects or different process requirements, the target temperature and time parameters corresponding to the heating chamber are dynamically set. For example, for steaming (such as steamed clams with eggs) and baking (such as tangcao cake rolls), low-temperature slow steaming (about 100°C) and high-temperature fast baking (180 - 200°C) modes are respectively adopted to avoid overcooking or undercooking of the ingredients.

[0087] To facilitate obtaining the types of the heating objects in the first cavity and the second cavity, a visual acquisition module (such as a camera) or a weight sensor can also be set in the first cavity and the second cavity. The picture of the heating object in the cavity is acquired through the visual acquisition module, or the weight of the heating object in the cavity is acquired through the weight sensor. After system processing and analysis, the type of the heating object is obtained.

[0088] In addition, after obtaining the types of the heating objects (generally baked foods) in the first cavity and the second cavity, it is also possible to query from the food heating information database according to the type of the heating object selected by the user, generate corresponding recommended heating time data and recommended heating temperature data, and generate corresponding heating time thresholds and heating temperature thresholds.

[0089] With such a setting, when the user does not know the baking time and temperature of the ingredients, corresponding recommended temperatures and times can be given to improve the user's operation experience. By generating corresponding heating time thresholds and heating temperature thresholds, and performing corresponding calculations on the time and temperature set by the user, when the time or temperature set by the user exceeds the corresponding heating time threshold and heating temperature threshold, an invalid instruction for the user setting is generated, which can prevent blindly setting the heating temperature and time of the device after the user has selected the ingredient type, thereby preventing misoperation and blind operation and further improving the user's usage experience.

[0090] In this embodiment, through the closed-loop logic of object perception - parameter adaptation - dynamic control, the problems of efficiency loss and quality instability caused by the one-size-fits-all temperature control strategy in the traditional heating system are solved.

[0091] Please refer to Figure 2 , this application provides a dual-cavity alternating heating control device, which adopts the dual-cavity alternating heating control method described in the above embodiment. The dual-cavity alternating heating control device includes:

[0092] A setting module 10 for setting the first target temperature and the preset total time T of the first cavity a , the second target temperature and the preset total time T of the second cavity b ;

[0093] A first cavity heating calculation module 20 for calculating the duration T1 required for heating the first cavity to the first target temperature according to the difference between the current temperature of the first cavity and the first target temperature, and calculating the heat Q1 = Q·T1·λ transferred to the second cavity within the time T1 based on the heating amount Q per unit time and the heat transfer coefficient λ of the first cavity;

[0094] The second cavity heating calculation module 30 is configured to calculate the original heating duration T2 for heating the second cavity to the second target temperature according to the difference between the current temperature of the second cavity and the second target temperature, and calculate the compensation time T3 = Q1 / Q2 based on Q1 and the heating amount per unit time Q2 of the second cavity, so as to obtain the actual heating duration T2 - T3 for heating the second cavity to the second target temperature;

[0095] The control module 40 is configured to, when T a is equal to T b , alternately execute the first cavity heating for T1 / T a time and the second cavity heating for (T2 - T3) / T b time until the heating of the first cavity and the second cavity ends; and is further configured to, when T a is greater than T b , correct Q1 = Q·T1 / T a ·T b ·λ, alternately execute the first cavity heating for T1 / T a time and the second cavity heating for (T2 - T3) / T b time until after the heating of the second cavity ends, the first cavity continues to heat for the remaining time T1 - T1 / T a ·T b ; and is further configured to, when T a is less than T b , alternately execute the first cavity heating for T1 / T a time and the second cavity heating for (T2 - T3) / T b time until after the heating of the first cavity ends, the second cavity continues to heat for the remaining time (T2 - T3) - (T2 - T3) / T b ·T a .

[0096] The beneficial effects of the dual-cavity alternating heating control device are as described above and will not be elaborated here.

[0097] In some embodiments, the dual-cavity alternating heating control device further includes a first sensor, a second sensor, a first heating module, and a second heating module.

[0098] Wherein, the first sensor is disposed in the first cavity and is communicatively connected to the control module 40, and the first sensor is configured to detect the current temperature of the first cavity; the second sensor is disposed in the second cavity and is communicatively connected to the control module 40, and the second sensor is configured to detect the current temperature of the second cavity; the first heating module is disposed in the first cavity and is communicatively connected to the control module 40, and the first heating module is configured to heat the first cavity; the second heating module is disposed in the second cavity and is communicatively connected to the control module 40, and the second heating module is configured to heat the second cavity.

[0099] In some embodiments, the first sensor and the second sensor are thermocouples or infrared temperature sensors; the first heating module and the second heating module are one of a resistance wire heater, an infrared heating tube, or an electromagnetic induction heater.

[0100] A double-chamber oven provided by the present application includes a first chamber and a second chamber, and further includes the double-chamber alternating heating control device described in the above specific embodiments. The double-chamber alternating heating control device is used to alternately heat the first chamber and the second chamber.

[0101] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0102] The double-chamber oven, the double-chamber alternating heating control method and device provided by the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the solution and its core idea of the present application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A dual-cavity alternating heating control method, applied to a dual-cavity oven including a first cavity and a second cavity, characterized in that: include: Set the first target temperature of the first chamber and the preset total time T a , the second target temperature of the second chamber and the preset total time T b ; The time T1 required for heating the first cavity to the first target temperature is calculated according to the difference between the current temperature of the first cavity and the first target temperature, and the heat Q1=Q·T1·λ transferred to the second cavity within T1 time is calculated based on the heating amount Q per unit time and the heat transfer coefficient λ of the first cavity; The original heating time T2 for heating the second cavity to the second target temperature is calculated according to the difference between the current temperature of the second cavity and the second target temperature, and the compensation time T3=Q1 / Q2 is calculated based on Q1 and the heating amount per unit time Q2 of the second cavity, so as to obtain the actual heating time T2-T3 for heating the second cavity to the second target temperature; When T a Equal to T b When the first chamber heating T1 / T a Time for heating the second chamber (T2-T3) / T b time, until the heating of the first cavity and the second cavity is completed; When T a Greater than T b When Q1=Q·T1 / T a ·T b ·λ, alternately perform the first chamber heating T1 / T a Time for heating the second chamber (T2-T3) / T b time, until the second chamber finishes heating, the first chamber continues heating for the remaining time T1-T1 / T a ·T b ; When T a Less than T b When the first chamber heating T1 / T a Time for heating the second chamber (T2-T3) / T b time, until the first chamber is finished heating, the second chamber continues heating for the remaining time (T2-T3)-(T2-T3) / T b ·T a .

2. The dual-cavity alternating heating control method according to claim 1, characterized in that: Before the step of calculating the amount of heat Q1=Q·T1·λ transferred to the second chamber within T1 based on the heating amount Q per unit time and the heat transfer coefficient λ of the first chamber, the method further includes: Obtaining the thermal conductivity k, thickness d, and contact area S of the physical isolation material between the first cavity and the second cavity; The heat transfer coefficient λ is calculated according to λ=(k⋅S) / d.

3. The dual-cavity alternating heating control method according to claim 1, characterized in that: The step of calculating the time T1 required for heating the first cavity to the first target temperature according to the difference between the current temperature of the first cavity and the first target temperature comprises: Obtaining the current temperature of the first chamber; Determine whether the current temperature of the first cavity is lower than the first target temperature. If so, start heating and calculate the time T1 required for the first cavity to be heated to the first target temperature. If not, stop heating and set the time T1 required for the first cavity to be heated to the first target temperature to zero.

4. The dual-cavity alternating heating control method according to any one of claims 1 to 3, characterized in that: The dual-cavity alternating heating control method further comprises: Calculating a real-time temperature difference between the first cavity and the second cavity according to a current temperature of the first cavity and a current temperature of the second cavity; When the real-time temperature difference between the first chamber and the second chamber exceeds a preset threshold, heating is stopped and a manual intervention instruction is triggered.

5. The dual-cavity alternating heating control method according to any one of claims 1 to 3, characterized in that: The dual-cavity alternating heating control method further comprises: When the actual heating time of the first cavity reaches T1, the time required for the first cavity to be heated to the first target temperature, or the actual heating time of the second cavity reaches T2-T3, the actual heating time required for the second cavity to be heated to the second target temperature, the heating operation of the corresponding cavity is forcibly terminated and a temperature timeout alarm is triggered.

6. The dual-cavity alternating heating control method according to any one of claims 1 to 3, characterized in that: The dual-cavity alternating heating control method further comprises: Acquire the types of heating objects in the first cavity and the second cavity; Dynamically adjust the first target temperature and the preset total time T of the first cavity according to the type of the heating object in the first cavity a , dynamically adjust the second target temperature of the second cavity and the preset total time T according to the type of the heating object in the second cavity b .

7. A dual-cavity alternating heating control device, using the dual-cavity alternating heating control method according to any one of claims 1 to 6, characterized in that: The dual-cavity alternating heating control device comprises: A setting module, used to set the first target temperature of the first chamber and the preset total time T a , the second target temperature of the second chamber and the preset total time T b ; a first cavity heating calculation module, used to calculate the time T1 required for heating the first cavity to the first target temperature according to the difference between the current temperature of the first cavity and the first target temperature, and to calculate the amount of heat Q1=Q·T1·λ transferred to the second cavity within the time T1 based on the heating amount Q per unit time and the heat transfer coefficient λ of the first cavity; A second cavity heating calculation module, used to calculate an original heating time T2 for heating the second cavity to the second target temperature according to a difference between the current temperature of the second cavity and the second target temperature, and to calculate a compensation time T3=Q1 / Q2 based on Q1 and the heating amount per unit time Q2 of the second cavity, so as to obtain an actual heating time T2-T3 for heating the second cavity to the second target temperature; Control module, used when T a Equal to T b When the first chamber heating T1 / T a Time for heating the second chamber (T2-T3) / T b time until the heating of the first chamber and the second chamber is completed; and also used when T a Greater than T b When Q1=Q·T1 / T a ·T b ·λ, alternately perform the first chamber heating T1 / T a Time for heating the second chamber (T2-T3) / T b time, until the second chamber is finished heating, the first chamber continues heating for the remaining time T1- T1 / T a ·T b ; Also used when T a Less than T b When the first chamber heating T1 / T a Time for heating the second chamber (T2-T3) / T b time, until the first chamber is finished heating, the second chamber continues heating for the remaining time (T2-T3)-(T2-T3) / T b ·T a .

8. The dual-cavity alternating heating control device according to claim 7, characterized in that: The dual-cavity alternating heating control device also includes: a first sensor, disposed in the first cavity and communicatively connected to the control module, for detecting a current temperature of the first cavity; a second sensor, disposed in the second cavity and communicatively connected with the control module, for detecting a current temperature of the second cavity; A first heating module, disposed in the first cavity and connected to the control module for heating the first cavity; The second heating module is disposed in the second cavity and is communicatively connected with the control module for heating the second cavity.

9. The dual-cavity alternating heating control device according to claim 8, characterized in that: The first sensor and the second sensor are thermocouples or infrared temperature sensors; The first heating module and the second heating module are one of a resistance wire heater, an infrared heating tube or an electromagnetic induction heater.

10. A double-cavity oven, comprising a first cavity and a second cavity, characterized in that: It also includes the dual-cavity alternating heating control device as described in any one of claims 7 to 9, and the dual-cavity alternating heating control device is used to alternately heat the first cavity and the second cavity.

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