Floating heating method, floating heating system and cooking utensil

Abstract

The invention relates to a floating heating method, a floating heating system and a cooking utensil. The problems that aerospace food is low in heating speed and uneven in heating in a space microgravity environment can be solved. The floating heating method comprises the following steps: acquiring and comparing surface temperatures of two opposite sides of a food container floating in a microgravity environment; in response to the fact that the temperature difference between the two side surfaces is smaller than or equal to a preset temperature difference threshold value, the rotating speeds of draught fans corresponding to the two opposite side surfaces of the food container are adjusted and controlled, so that the hot air flowing speed directly blowing the two opposite side surfaces is kept consistent; and in response to the condition that the temperature difference between the two side surfaces is greater than the preset temperature difference threshold value, regulating and controlling the rotating speed of a fan corresponding to the two opposite side surfaces of the food container, so that the hot air flow speed of the side surface with the higher direct blowing temperature is greater than that of the side surface with the lower direct blowing temperature, the food container is made to float towards the side with the low surface temperature so as to be close to the heating piece corresponding to the surface of the side with the low temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of space cooking, and particularly to a floating heating method, a floating heating system and a cooking appliance. Background Art

[0002] As a special group, astronauts work in a microgravity environment. Not only is the diversity of their food greatly limited, but the limitations on food cooking methods are even more severe. Currently, during spaceflight, space food is usually heated and cooked by means of low-speed air flow and low-temperature heat transfer, resulting in a slow heating speed, insufficient and uneven heating of the food, which will to some extent limit the taste and flavor of the food and bring a bad experience to the astronauts.

[0003] The reason why existing space food usually uses low-speed air flow for heating is mainly that space food floats in the microgravity environment of space. If high-speed air flow is used for heating, the space food needs to be firmly fixed under the direct blowing of the high-speed air flow, which requires additional use of complex fixing parts, resulting in relatively complex cooking operations for space food. Summary of the Invention

[0004] Based on this, in view of the problems of slow heating speed and uneven heating of space food in the microgravity environment of space, the present invention provides a floating heating method, a floating heating system and a cooking appliance.

[0005] In one embodiment of the present application, the present invention provides a floating heating method, including the steps of:

[0006] Obtaining and comparing the surface temperatures of opposite sides of a food container floating in a microgravity environment;

[0007] In response to the difference between the two surface temperatures being less than or equal to a predetermined temperature difference threshold, adjusting the rotational speeds of the blowers corresponding to the opposite sides of the food container so that the hot air flow rates blowing directly on the opposite sides are kept consistent; and

[0008] In response to the difference between the two surface temperatures being greater than the predetermined temperature difference threshold, adjusting the rotational speeds of the blowers corresponding to the opposite sides of the food container so that the hot air flow rate blowing directly on the side with the higher surface temperature is greater than the hot air flow rate blowing directly on the side with the lower surface temperature, causing the food container to float towards the side with the lower surface temperature to approach the heating element corresponding to the side with the lower surface temperature.

[0009] According to one embodiment of the present application, the step of obtaining and comparing the surface temperatures of opposite sides of a food container floating in a microgravity environment includes the steps of:

[0010] Detect the temperatures of the first surface and the second surface arranged oppositely on the food container to obtain the first surface temperature data and the second surface temperature data;

[0011] Subtract the second surface temperature data from the first surface temperature data and take the absolute value to obtain the temperature difference between the two side surfaces of the food container; and

[0012] Determine whether the temperature difference between the two side surfaces is greater than the predetermined temperature difference threshold.

[0013] According to an embodiment of the present application, the step of adjusting the rotational speeds of the fans corresponding to the opposite side surfaces of the food container in response to the temperature difference between the two side surfaces being greater than the predetermined temperature difference threshold includes the steps of:

[0014] When the temperature of the first surface is greater than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, increase the rotational speed of the fan corresponding to the first surface to increase the hot air flow rate directly blowing on the first surface, so that the food container drifts towards the other side to approach the heating element corresponding to the second surface; and

[0015] When the temperature of the first surface is less than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, increase the rotational speed of the fan corresponding to the second surface to increase the hot air flow rate directly blowing on the second surface, so that the food container drifts towards the other side to approach the heating element corresponding to the first surface.

[0016] According to an embodiment of the present application, when increasing the rotational speed of the fan corresponding to the first surface, correspondingly decrease the rotational speed of the fan corresponding to the second surface to reduce the hot air flow rate directly blowing on the second surface; when increasing the rotational speed of the fan corresponding to the second surface, correspondingly decrease the rotational speed of the fan corresponding to the first surface to reduce the hot air flow rate directly blowing on the first surface.

[0017] According to another aspect of the present application, an embodiment of the present application further provides a floating heating system, including: communicatively connected to each other

[0018] A temperature difference acquisition module for acquiring and comparing the surface temperatures of the opposite sides of a food container floating in a microgravity environment; and

[0019] A rotational speed regulation module, configured to regulate the rotational speeds of the fans corresponding to the opposite two surfaces of the food container in response to the temperature difference between the two opposite surfaces being less than or equal to a predetermined temperature difference threshold, so as to keep the hot air flow rates directly blowing on the two opposite surfaces consistent; and to regulate the rotational speeds of the fans corresponding to the opposite two surfaces of the food container in response to the temperature difference between the two opposite surfaces being greater than the predetermined temperature difference threshold, so as to make the hot air flow rate directly blowing on the surface with a higher temperature greater than the hot air flow rate directly blowing on the surface with a lower temperature, such that the food container drifts towards the side with a lower surface temperature to approach the heating element corresponding to the side with a lower surface temperature.

[0020] According to an embodiment of the present application, the temperature difference acquisition module includes: a temperature detection module communicatively connected to each other, configured to detect the temperatures of a first surface and a second surface oppositely arranged on the food container to obtain first surface temperature data and second surface temperature data; a difference processing module, configured to perform a difference operation on the first surface temperature data and the second surface temperature data and take the absolute value to obtain the temperature difference between the two opposite surfaces of the food container; and a temperature difference judgment module, configured to judge whether the temperature difference between the two opposite surfaces is greater than the predetermined temperature difference threshold.

[0021] According to an embodiment of the present application, the rotational speed regulation module includes a rotational speed increasing module, configured to increase the rotational speed of the fan corresponding to the first surface to increase the hot air flow rate directly blowing on the first surface when the temperature of the first surface is greater than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, such that the food container drifts towards the other side to approach the heating element corresponding to the second surface; and to increase the rotational speed of the fan corresponding to the second surface to increase the hot air flow rate directly blowing on the second surface when the temperature of the first surface is less than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, such that the food container drifts towards the other side to approach the heating element corresponding to the first surface.

[0022] According to an embodiment of the present application, the rotational speed regulation module further includes a rotational speed decreasing module communicatively connected to the rotational speed increasing module, configured to correspondingly decrease the rotational speed of the fan corresponding to the second surface when increasing the rotational speed of the fan corresponding to the first surface; and to correspondingly decrease the rotational speed of the fan corresponding to the first surface when increasing the rotational speed of the fan corresponding to the second surface.

[0023] According to another aspect of the present application, an embodiment of the present application further provides a cooking appliance for heating and cooking food contained in a food container in a microgravity environment, the cooking appliance including:

[0024] An appliance main body; and

[0025] The floating heating system described in any one of the above, the floating heating system being communicatively configured on the appliance main body.

[0026] According to an embodiment of the present application, the appliance body includes a heat preservation cavity, a hot air circulation component disposed within the heat preservation cavity, a heating component disposed within the heat preservation cavity, and a pair of temperature sensors for mounting on opposite side surfaces of the food container; the hot air circulation component includes a pair of fans and a pair of air supply channels that are respectively communicated with the air outlets of the corresponding fans and are arranged at intervals, and each of the air supply channels is provided with a plurality of air outlets facing the other air supply channel to form a convection space for accommodating the food container between the two air supply channels; the heating component includes a pair of heating elements arranged at intervals within the convection space, and each heating element is arranged adjacent to the air outlet of the corresponding air supply channel.

[0027] In summary, since two hot air flows directly blow on opposite side surfaces of the food container at the same time, part of the forces exerted by the hot air on the food container can cancel each other out. Therefore, even if the flow rate of the hot air increases significantly, the food container does not need to use complex fixing parts, or even any fixing parts, and can be controlled to float within a certain range, realizing the relative fixation of the food container. In other words, the floating heating method of the present application can make it a reality to heat and cook aerospace food by using high-speed air flow and high-temperature heat transfer in the microgravity environment of space, which is conducive to greatly accelerating the heating speed and improving the cooking efficiency.

[0028] In addition, when the temperature difference between opposite side surfaces of the food container is greater than a predetermined temperature difference threshold, the floating heating method of the present application can adjust the rotational speeds of the fans corresponding to the opposite side surfaces of the food container, so that the flow rate of the hot air flow directly blowing on the side surface with a higher temperature is greater than the flow rate of the hot air flow directly blowing on the side surface with a lower temperature, causing the food container to drift towards the other side to approach the heating element corresponding to the side surface with a lower temperature. In this way, the side surface with a lower temperature on the food container can be quickly heated up due to approaching the heating element, so as to reduce the temperature difference between the opposite side surfaces of the food container, and make the temperature difference between the opposite side surfaces of the food container return within the predetermined temperature difference threshold; when the temperature difference between the two side surfaces is less than or equal to the predetermined temperature difference threshold, the rotational speeds of the fans corresponding to the opposite side surfaces of the food container can be adjusted again, so that the flow rates of the hot air flows directly blowing on the opposite side surfaces are kept consistent, enabling the temperature difference between the opposite side surfaces of the food container to be maintained within the predetermined temperature difference threshold for a long time, ensuring that the food in the food container can be fully and evenly heated, and facilitating the improvement of the taste and flavor of the food. Description of the Drawings

[0029] Figure 1 It is a schematic flow chart of a floating heating method according to an embodiment of the present application;

[0030] Figure 2It shows a schematic flowchart of the temperature difference acquisition step in the floating heating method according to the above embodiments of the present application;

[0031] Figure 3 It shows a schematic flowchart of the rotation speed regulation step in the floating heating method according to the above embodiments of the present application;

[0032] Figure 4 It is a schematic block diagram of a floating heating system according to an embodiment of the present application;

[0033] Figure 5 It is a schematic structural diagram of a cooking appliance according to an embodiment of the present application.

[0034] Main element symbol description: 1, cooking appliance; 10, floating heating system; 11, temperature difference acquisition module; 111, temperature detection module; 112, difference processing module; 113, temperature difference judgment module; 12, rotation speed regulation module; 121, rotation speed increasing module; 122, rotation speed decreasing module; 20, appliance main body; 21, heat preservation cavity; 22, hot air circulation component; 220, convection space; 221, fan; 222, air supply channel; 2220, air outlet; 23, heating component; 230, heating element; 24, temperature sensor; 25, restraint belt; 30, food container.

[0035] The above main element symbol description further elaborates on the present invention in conjunction with the accompanying drawings and specific embodiments. Specific Embodiments

[0036] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Considering that existing space foods are usually heated and cooked by means of low-speed air flow and low-temperature heat transfer, resulting in a slow heating speed, insufficient and uneven heating of the food, which will to some extent limit the taste and flavor of the food and bring a bad experience to astronauts. Therefore, in view of the problems of slow heating speed and uneven heating of space foods in the microgravity environment in space, the present invention provides a floating heating method, a floating heating system and a cooking appliance, which can accelerate the heating speed and ensure sufficient and uniform heating of the food so as to improve the taste and flavor of the food.

[0041] Specifically, referring to the appended Figure 1 As shown, an embodiment of the present application provides a floating heating method, including the steps of:

[0042] S100: Obtain and compare the surface temperatures of opposite sides of a food container floating in a microgravity environment;

[0043] S200: In response to the difference between the two surface temperatures being less than or equal to a predetermined temperature difference threshold, adjust the rotational speeds of the blowers corresponding to the opposite sides of the food container so that the hot air flow rates directly blowing on the opposite sides are kept consistent; and

[0044] S300: In response to the difference between the two surface temperatures being greater than the predetermined temperature difference threshold, adjust the rotational speeds of the blowers corresponding to the opposite sides of the food container so that the hot air flow rate directly blowing on the side with a higher surface temperature is greater than the hot air flow rate directly blowing on the side with a lower surface temperature, causing the food container to float towards the side with a lower surface temperature to approach the heating element corresponding to the side with a lower surface temperature.

[0045] It is understandable that the consistent hot air flow rate mentioned in this application means that the flow rates of the two hot air currents directly blowing on the opposite side surfaces of the food container can be exactly the same or slightly different, as long as the deviation is within the detection error range, which will not be elaborated in this application; the food container mentioned in this application can be the outer packaging of space food (such as a packaging box or a packaging bag), or a special utensil for holding space food, which will not be elaborated in this application.

[0046] It should be noted that since the two hot air currents directly blow on the opposite side surfaces of the food container at the same time, part of the forces exerted by the hot air on the food container can cancel each other out. Therefore, even if the flow rate of the hot air increases significantly, the food container does not need to use complex fixing parts, or even any fixing parts, and can be controlled to float within a certain range to achieve relative fixation of the food container. In other words, the floating heating method of this application can make it a reality to heat and cook space food in a space microgravity environment by using high-speed air flow and high-temperature heat transfer, which is conducive to greatly accelerating the heating speed and improving the cooking efficiency.

[0047] In addition, when the temperature difference between the opposite side surfaces of the food container is greater than the predetermined temperature difference threshold, the floating heating method of this application can increase the rotational speed of the fan corresponding to the surface with a higher temperature to increase the flow rate of the hot air directly blowing on this side surface, and / or decrease the rotational speed of the fan corresponding to the surface with a lower temperature to reduce the flow rate of the hot air directly blowing on this side surface, so that the food container drifts towards the other side to approach the heating element corresponding to the side surface with a lower surface temperature. In this way, the side surface with a lower temperature on the food container can quickly heat up due to approaching the heating element, so as to reduce the difference between the temperatures of the opposite side surfaces of the food container and make the temperature difference between the opposite side surfaces of the food container return within the predetermined temperature difference threshold; when the temperature difference between the two side surfaces is less than or equal to the predetermined temperature difference threshold, it can also adjust the rotational speeds of the fans corresponding to the opposite side surfaces of the food container to keep the flow rates of the hot air directly blowing on the opposite side surfaces consistent, so that the temperature difference between the opposite side surfaces of the food container can be kept within the predetermined temperature difference threshold for a long time, ensuring that the food in the food container can be fully and evenly heated, which is convenient for improving the taste and flavor of the food.

[0048] It is understandable that due to the different shapes and component stacking degrees of foods, traditional uniform hot air heating will surely cause different heating of each part of the food; while the floating heating method of this application uses hot air with different flow rates on the opposite side surfaces of the food container, so that the food container drifts towards the heating element corresponding to the side surface with a lower temperature, improving the heating efficiency of the side with a lower surface temperature, so as to compensate for the larger wind speed, making the food in the food container heated evenly.

[0049] More specifically, the predetermined temperature difference threshold can be, but is not limited to, implemented as 5°C, so that the temperature difference between the opposite two side surfaces of the food container can be maintained within 5°C for a long time, which helps to make the food in the food container heated more evenly.

[0050] Optionally, as Figure 2 shown, step S100 of the floating heating method of the present application may include the steps of:

[0051] S110: Detect the temperatures of the first surface and the second surface arranged oppositely on the food container to obtain the first surface temperature data and the second surface temperature data;

[0052] S120: Subtract the first surface temperature data from the second surface temperature data and take the absolute value to obtain the temperature difference between the two side surfaces of the food container; and

[0053] S130: Determine whether the temperature difference between the two side surfaces is greater than the predetermined temperature difference threshold.

[0054] It can be understood that the temperature difference between the two side surfaces mentioned in the present application refers to the absolute difference, that is, the absolute value of the difference between the temperature of the first surface and the temperature of the second surface.

[0055] Optionally, as Figure 3 shown, step S300 of the floating heating method of the present application may include the steps of:

[0056] S310: When the temperature of the first surface is greater than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, increase the rotation speed of the fan corresponding to the first surface to increase the flow rate of the hot air flow directly blowing on the first surface, so that the food container drifts towards the other side to approach the heating element corresponding to the second surface; and

[0057] S320: When the temperature of the first surface is less than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, increase the rotation speed of the fan corresponding to the second surface to increase the flow rate of the hot air flow directly blowing on the second surface, so that the food container drifts towards the other side to approach the heating element corresponding to the first surface.

[0058] Optionally, in step S310 of the floating heating method of the present application: when increasing the rotation speed of the fan corresponding to the first surface, correspondingly decrease the rotation speed of the fan corresponding to the second surface to reduce the flow rate of the hot air flow directly blowing on the second surface. In this way, while ensuring that the food container can float as needed to approach the corresponding heating element, the present application can also ensure that the rotation speeds of the two side fans are regulated within a predetermined range, avoiding the continuous and alternating increase of the rotation speeds of the two side fans during the entire cooking process, resulting in uncontrollable regulation of the fan rotation speed.

[0059] Accordingly, in step S320 of the floating heating method of the present application: when the fan speed corresponding to the second surface is increased, the fan speed corresponding to the first surface is correspondingly decreased to reduce the hot air flow rate directly blowing on the first surface.

[0060] Exemplarily, taking the upper and lower surfaces of the food container as the opposite two side surfaces of the food container: at the start of cooking, the temperatures of the upper and lower surfaces of the food container are basically the same, that is, the temperature difference between the upper and lower surfaces is within 5°C. At this time, the fan speeds corresponding to the upper and lower surfaces are controlled so that the hot air flow rates directly blowing on the upper and lower surfaces are kept consistent, making the food container in a centered position; during the cooking process, if it is detected that the temperature of the upper surface is higher than that of the lower surface and the absolute difference is greater than 5°C, then the fan speed corresponding to the upper surface is increased to increase the hot air flow rate directly blowing on the upper surface, and the fan speed corresponding to the lower surface is decreased to reduce the hot air flow rate directly blowing on the lower surface, so that the food container drifts downward to approach the heating element corresponding to the lower surface to improve the heating efficiency of the lower surface, and the temperature of the lower surface of the food container rises faster; if it is detected that the temperature of the lower surface is higher than that of the upper surface and the absolute difference is greater than 5°C, then the fan speed corresponding to the lower surface is increased to increase the hot air flow rate directly blowing on the lower surface, and the fan speed corresponding to the upper surface is decreased to reduce the hot air flow rate directly blowing on the upper surface, so that the food container drifts upward to approach the heating element corresponding to the upper surface to improve the heating efficiency of the upper surface, and the temperature of the upper surface of the food container rises faster. In this way, during the entire cooking process, the food container will be heated while constantly floating up and down, which can not only make the food placed in the food container heated more evenly, but also save the fixing device for fixing the food container, helping to reduce costs and simplify the cooking operation.

[0061] It should be noted that when the food container drifts upward (or downward), if the distance between the upper surface (or lower surface) of the food container and the corresponding heating element is relatively close, the temperature of the upper side surface (or lower side surface) will rise rapidly, so that the temperature of this side surface is greater than that of the other side surface and the difference exceeds the predetermined temperature difference threshold; at this time, the floating heating method of the present application will increase the fan speed corresponding to the upper surface (or lower surface) to increase the hot air flow rate directly blowing on the upper surface (or lower surface), and decrease the fan speed corresponding to the lower surface (or upper surface) to reduce the hot air flow rate directly blowing on the lower surface (or upper surface), so that the food container drifts downward (or upward), avoiding the food container contacting the heating element or the inner wall of the cooking utensil during the up and down floating process, which helps to save the device for fixing the food container.

[0062] Of course, in order to prevent the food container from drifting in a direction deviating from the heating element, the present application can use fixing members such as restraint belts to limit the floating range of the food container, which will not be elaborated in the present application.

[0063] In addition, in other examples of the present application, when the temperature difference between the two side surfaces returns within the predetermined temperature difference threshold, the floating heating method of the present application can also reduce the increased fan speed so that the hot air flow rates directly blowing on the two opposite side surfaces are kept consistent for uniform heating; thereafter, if the temperature difference between the two side surfaces is greater than the predetermined temperature difference threshold again, the fan speed is correspondingly adjusted again, and such cyclic adjustment can still achieve the effect of floating heating.

[0064] It is worth mentioning that, according to another aspect of the present application, as Figure 4 shown, the present application provides a floating heating system 10, which may include communicatively connected to each other: a temperature difference acquisition module 11 for acquiring and comparing the surface temperatures of opposite sides of a food container floating in a microgravity environment; and a rotation speed adjustment module 12 for, in response to the temperature difference between the two side surfaces being less than or equal to a predetermined temperature difference threshold, adjusting the fan rotation speeds corresponding to the opposite side surfaces of the food container so that the hot air flow rates directly blowing on the two opposite side surfaces are kept consistent; and in response to the temperature difference between the two side surfaces being greater than the predetermined temperature difference threshold, adjusting the fan rotation speeds corresponding to the opposite side surfaces of the food container so that the hot air flow rate directly blowing on the side surface with a higher temperature is greater than the hot air flow rate directly blowing on the side surface with a lower temperature, causing the food container to float towards the side surface with a lower temperature to approach the heating element corresponding to the side surface with a lower temperature.

[0065] It should be noted that, in an example of the present application, as Figure 4 shown, the temperature difference acquisition module 11 may include communicatively connected to each other: a temperature detection module 111 for detecting the temperatures of a first surface and a second surface oppositely arranged on the food container to obtain first surface temperature data and second surface temperature data; a difference processing module 112 for performing a difference operation on the first surface temperature data and the second surface temperature data and taking the absolute value to obtain the temperature difference between the two side surfaces of the food container; and a temperature difference judgment module 113 for judging whether the temperature difference between the two side surfaces is greater than the predetermined temperature difference threshold.

[0066] Optionally, as Figure 4 shown, the rotation speed adjustment module 12 includes a rotation speed increasing module 121 for, when the first surface temperature is greater than the second surface temperature and the absolute difference is greater than the predetermined temperature difference threshold, increasing the fan rotation speed corresponding to the first surface to increase the hot air flow rate directly blowing on the first surface, causing the food container to float towards the other side to approach the heating element corresponding to the second surface; and when the first surface temperature is less than the second surface temperature and the absolute difference is greater than the predetermined temperature difference threshold, increasing the fan rotation speed corresponding to the second surface to increase the hot air flow rate directly blowing on the second surface, causing the food container to float towards the other side to approach the heating element corresponding to the first surface.

[0067] Optionally, as Figure 4 shown, the rotational speed regulation module 12 further includes a rotational speed reduction module 122 communicatively connected to the rotational speed increase module 121, configured to correspondingly reduce the rotational speed of the blower corresponding to the second surface when increasing the rotational speed of the blower corresponding to the first surface; and to correspondingly reduce the rotational speed of the blower corresponding to the first surface when increasing the rotational speed of the blower corresponding to the second surface.

[0068] It is worth mentioning that, according to another aspect of the present application, as Figure 5 shown, an embodiment of the present application further provides a cooking appliance 1 for heating and cooking food contained in a food container 30 in a microgravity environment, which may include an appliance main body 20 and the above-mentioned floating heating system 10, and the floating heating system 10 is communicatively configured on the appliance main body 20 to achieve floating heating control of space food. It can be understood that the floating heating system 10 mentioned in the present application may but is not limited to be implemented as a controller integrated with corresponding modules and instructions, and the present application will not elaborate on this.

[0069] Optionally, as Figure 5 shown, the appliance main body 20 may include a heat preservation cavity 21, a hot air circulation component 22 arranged within the heat preservation cavity 21, a heating component 23 arranged within the heat preservation cavity 21, and a pair of temperature sensors 24 for mounting on opposite side surfaces of the food container 30; the hot air circulation component 22 includes a pair of blowers 221 and a pair of air supply channels 222 respectively communicating with the air outlets of the corresponding blowers 221 and arranged at intervals, and each air supply channel 222 is provided with a plurality of air outlets 2220 facing the other air supply channel 222 to form a convection space 220 for accommodating the food container 30 between the two air supply channels 222; the heating component 23 includes a pair of heating elements 230 arranged at intervals within the convection space 220, and each heating element 230 is arranged adjacent to the air outlet 2220 of the corresponding air supply channel 222. In this way, the air flowing out at high speed through the air outlets 2220 of the air supply channels 222 will first flow through the corresponding heating element 230 to be heated and then directly blow the food container 30 located in the convection space 220, so as to efficiently heat the food carried in the food container 30. It can be understood that each air supply channel 222 mentioned in the present application may be provided by a single air supply pipe or by a plurality of air supply pipes arranged side by side; in addition, the air supply pipes mentioned in the present application may but are not limited to be implemented as round pipes, square pipes or plate-shaped pipes, etc., as long as they can guide hot air to directly blow towards the food container 30 under the action of the corresponding blower 221, and the present application will not elaborate on this.

[0070] It should be noted that the heating element 230 can be, but is not limited to, implemented as an electric heating wire, a heating tube, or other heat-generating devices, as long as it can heat the air flowing out through the air outlet 2220 to form a hot air circulation within the heat preservation cavity 21. This application will not elaborate further on this. In addition, the floating heating system 10 is communicatively connected to the hot air circulation assembly 22 and the temperature sensor 24, so as to correspondingly adjust the fan speed of the hot air circulation assembly 22 according to the change in the surface temperatures of the two opposite sides of the food container 30, thereby realizing floating heating of the food placed in the food container 30.

[0071] Optionally, as Figure 5 shown, the appliance main body 20 may further include a restraint strap 25. One end of the restraint strap 25 is fixedly connected to the heat preservation cavity 21, and the other end of the restraint strap 25 is fixedly connected to the temperature sensor 24. In this way, in this application, only by attaching the temperature sensor 24 to the food container 30 can the restraint of the food container 30 be achieved, ensuring that the food container 30 floats back and forth within the convection space 220 between the two heating elements 230.

[0072] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0073] The above embodiments only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A floating heating method, characterized in that, Including the steps of: Obtaining and comparing the surface temperatures of opposite sides of a food container floating in a microgravity environment; In response to the temperature difference between the two side surfaces being less than or equal to a predetermined temperature difference threshold, regulating the rotational speeds of the fans corresponding to the opposite side surfaces of the food container so that the hot air flow rates directly blowing on the opposite side surfaces are kept consistent; and In response to the temperature difference between the two side surfaces being greater than the predetermined temperature difference threshold, regulating the rotational speeds of the fans corresponding to the opposite side surfaces of the food container so that the hot air flow rate directly blowing on the side surface with a higher temperature is greater than the hot air flow rate directly blowing on the side surface with a lower temperature, causing the food container to float towards the side with a lower surface temperature to approach the heating element corresponding to the side surface with a lower temperature.

2. The floating heating method according to claim 1, characterized in that, The step of obtaining and comparing the surface temperatures of opposite sides of a food container floating in a microgravity environment includes the steps of: Detecting the temperatures of a first surface and a second surface arranged oppositely on the food container to obtain first surface temperature data and second surface temperature data; Taking the difference between the first surface temperature data and the second surface temperature data and taking the absolute value to obtain the temperature difference between the two side surfaces of the food container; And Judging whether the temperature difference between the two side surfaces is greater than the predetermined temperature difference threshold.

3. The floating heating method according to claim 2, wherein The step of, in response to the temperature difference between the two side surfaces being greater than the predetermined temperature difference threshold, regulating the rotational speeds of the fans corresponding to the opposite side surfaces of the food container includes the steps of: When the first surface temperature is greater than the second surface temperature and the absolute difference is greater than the predetermined temperature difference threshold, increasing the rotational speed of the fan corresponding to the first surface to increase the hot air flow rate directly blowing on the first surface, causing the food container to float towards the other side to approach the heating element corresponding to the second surface; And When the first surface temperature is less than the second surface temperature and the absolute difference is greater than the predetermined temperature difference threshold, increasing the rotational speed of the fan corresponding to the second surface to increase the hot air flow rate directly blowing on the second surface, causing the food container to float towards the other side to approach the heating element corresponding to the first surface.

4. The floating heating method according to claim 3, characterized in that, When increasing the rotational speed of the fan corresponding to the first surface, correspondingly decreasing the rotational speed of the fan corresponding to the second surface to reduce the hot air flow rate directly blowing on the second surface; when increasing the rotational speed of the fan corresponding to the second surface, correspondingly decreasing the rotational speed of the fan corresponding to the first surface to reduce the hot air flow rate directly blowing on the first surface.

5. Floating heating system, characterized in that, Including components communicatively connected to each other: A temperature difference acquisition module for obtaining and comparing the surface temperatures of opposite sides of a food container floating in a microgravity environment; And A rotational speed regulation module for, in response to the temperature difference between the two side surfaces being less than or equal to a predetermined temperature difference threshold, regulating the rotational speeds of the fans corresponding to the opposite side surfaces of the food container so that the hot air flow rates directly blowing on the opposite side surfaces are kept consistent; in response to the temperature difference between the two side surfaces being greater than the predetermined temperature difference threshold, regulating the rotational speeds of the fans corresponding to the opposite side surfaces of the food container so that the hot air flow rate directly blowing on the side surface with a higher temperature is greater than the hot air flow rate directly blowing on the side surface with a lower temperature, causing the food container to float towards the side with a lower surface temperature to approach the heating element corresponding to the side surface with a lower temperature.

6. The floating heating system according to claim 5, wherein, The temperature difference acquisition module includes: a temperature detection module communicatively connected to each other, configured to detect the temperatures of the first surface and the second surface oppositely arranged on the food container to obtain first surface temperature data and second surface temperature data; a difference processing module configured to perform a difference operation on the first surface temperature data and the second surface temperature data and take the absolute value to obtain the temperature difference between the two side surfaces of the food container; and a temperature difference judgment module configured to judge whether the temperature difference between the two side surfaces is greater than the predetermined temperature difference threshold.

7. The floating heating system according to claim 6, wherein The rotation speed regulation module includes a rotation speed increasing module configured to, when the temperature of the first surface is greater than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, increase the rotation speed of the blower corresponding to the first surface to increase the hot air flow rate directly blowing on the first surface, so that the food container drifts towards the other side to approach the heating element corresponding to the second surface; when the temperature of the first surface is less than the temperature of the second surface and the absolute difference is greater than the predetermined temperature difference threshold, increase the rotation speed of the blower corresponding to the second surface to increase the hot air flow rate directly blowing on the second surface, so that the food container drifts towards the other side to approach the heating element corresponding to the first surface.

8. The floating heating system according to claim 7, wherein, The rotation speed regulation module further includes a rotation speed decreasing module communicatively connected to the rotation speed increasing module, configured to, when increasing the rotation speed of the blower corresponding to the first surface, correspondingly decrease the rotation speed of the blower corresponding to the second surface; when increasing the rotation speed of the blower corresponding to the second surface, correspondingly decrease the rotation speed of the blower corresponding to the first surface.

9. A cooking appliance for heating and cooking food contained in a food container in a microgravity environment, characterized in that, The cooking appliance includes: an appliance main body; and a floating heating system as described in any one of claims 5 to 8, the floating heating system being communicatively configured on the appliance main body.

10. The cooking appliance according to claim 9, wherein, The appliance main body includes a heat preservation cavity, a hot air circulation assembly arranged within the heat preservation cavity, a heating assembly arranged within the heat preservation cavity, and a pair of temperature sensors for mounting on the opposite side surfaces of the food container; the hot air circulation assembly includes a pair of blowers and a pair of air supply channels respectively communicated with the air outlets of the corresponding blowers and arranged at intervals from each other, and each air supply channel is provided with a plurality of air outlets facing the other air supply channel to form a convection space for accommodating the food container between the two air supply channels; the heating assembly includes a pair of heating elements arranged at intervals within the convection space, and each heating element is arranged adjacent to the air outlet of the corresponding air supply channel.

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