Facial mask heating device, beauty makeup refrigerator, heating method and readable storage medium

Abstract

The invention discloses a mask heating device, a beauty makeup refrigerator, a heating method and a readable storage medium. The mask heating device comprises a mask heating module, a temperature control module and a waste heat utilization module. The mask heating module comprises a heating chamber, a heating medium container and a mask placing area, the heating chamber is used for heating a heating medium in the heating medium container, the mask placing area is located in the heating medium container, a mask is placed in the mask placing area, and the heating medium is used for transferring heat to indirectly heat the mask; the temperature control module is used for monitoring the temperature of the heating medium and the surface film in real time and performing control and adjustment; the waste heat utilization module comprises an air door and an air duct, and the air door and the air duct are arranged at the bottom of the heating cavity and used for transmitting waste heat of the mask heating module. Intelligent heating temperature control is carried out through the phase change process of the phase change material, energy consumption is reduced while it is guaranteed that the heating temperature of the mask is accurate, and the energy utilization rate is increased.

Description

Technical Field

[0001] This application relates to the field of temperature control technology, specifically to a facial mask heating device, a beauty refrigerator, a heating method, and a readable storage medium. Background Technology

[0002] In existing beauty refrigerators, the mask heating device mostly uses the traditional direct heating method, which results in inaccurate and unstable temperature control.

[0003] Especially when the temperature control system malfunctions, the heating temperature can easily become too high, causing irreversible denaturation or inactivation of mask ingredients such as active enzymes and vitamins, and resulting in waste of excess heat. This leads to low resource utilization. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a facial mask heating device, a beauty refrigerator, a heating method, and a readable storage medium.

[0005] The present invention adopts the following technical solution.

[0006] The first aspect of the present invention discloses a facial mask heating device, comprising: a facial mask heating module, a temperature control module, and a waste heat utilization module; The mask heating module includes a heating chamber, a heating medium container, and a mask placement area. The heating chamber is used to heat the heating medium in the heating medium container. The mask placement area is located inside the heating medium container, and the mask is placed in the mask placement area. The heating medium is used to transfer heat to indirectly heat the mask. The temperature control module is used to monitor and adjust the temperature of the heating medium and the mask in real time. The waste heat utilization module includes an air damper and an air duct, which are located at the bottom of the heating chamber and are used to transfer the waste heat of the mask heating module.

[0007] Preferably, the heating medium is a phase change material with a phase change temperature of 40-50℃, and heat is transferred through a water bath heating method.

[0008] Preferably, both the heating chamber and the heating medium container are box-shaped structures with openings at the top, and the heating medium container is nested within the heating chamber.

[0009] Preferably, the heating chamber includes a heating element connected to the temperature control module for adjusting the temperature of the heating medium.

[0010] Preferably, the temperature control module includes temperature sensors, which are respectively disposed inside the heating medium container and the mask placement area, and monitor the temperature of the heating medium and the mask in real time through the temperature sensors.

[0011] Preferably, the temperature control module includes a temperature control board, the temperature sensor is electrically connected to the temperature control board, and the temperature control board has a built-in PID control algorithm and a binary search method.

[0012] Preferably, the air duct is connected to the opening of the damper.

[0013] The second aspect of the present invention discloses a beauty refrigerator, including a mask heating device, a refrigeration area, and a freeze-dried mask reconstitution area as described in the first aspect; The refrigeration area and the freeze-dried mask reconstitution area are respectively connected to the air duct. When the air duct is opened, the heat of the heating medium is conducted to the refrigeration area and the freeze-dried mask reconstitution area through the air in the air duct.

[0014] A third aspect of the present invention discloses a heating method based on a cosmetic refrigerator as described in the second aspect, comprising the following steps: Step 1: After the beauty refrigerator detects that a face mask has been placed inside, it heats the mask at a power of P01 for a time t1, and then proceeds to Step 2. Step 2: Real-time detection of the current temperature T1 of the heating medium, and calculation of the temperature difference between the current temperature T1 and the phase change temperature T2 of the heating medium. T = T2 - T1, proceed to step 3; Step 3: Based on temperature difference T, adjust the heating power P1 using the PID control algorithm, and after heating for t1 time, execute step 4; Step 4: Determine whether the current temperature T1 of the heating medium is equal to the phase change temperature T2. If yes, proceed to step 5; otherwise, return to step 2. Step 5: Using the initial bisection method, set the left boundary value P21=0 and the right boundary value P22=2*P2 for the heat preservation power P2. After heating for t2 time with the heat preservation power P2, proceed to step 6. Step 6: Determine whether the current temperature T1 of the heating medium is less than the phase change temperature T2. If yes, proceed to step 7; otherwise, proceed to step 8. Step 7: Update the left boundary value P21=P2 and adjust the insulation power. After heating for time t2, return to step 6; Step 8: Detect the mask temperature T3 in real time and determine whether the current mask temperature T3 is less than the phase transition temperature T2. If so, proceed to step 9; otherwise, proceed to step 10. Step 9: Update the right boundary value P22=P2 and adjust the insulation value. After heating for time t2, return to step 6; Step 10: Stop heating and remind the user that heating is complete.

[0015] Preferably, in step 3, the heating power P1 is adjusted to update the heating power P1 to... The This refers to the proportional gain in the PID control algorithm.

[0016] Preferably, after reminding the user that heating is complete, the system checks whether there is a defrosting request in the refrigeration area of ​​the current beauty refrigerator and whether there is a re-dissolving request in the freeze-dried mask re-dissolving area. If so, the system opens the air vent to transfer the temperature of the heating medium to the refrigeration area and / or the freeze-dried mask re-dissolving area through air circulation. If not, the heating ends.

[0017] A fourth aspect of the present invention discloses a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the heating method described in the third aspect.

[0018] Compared with the prior art, the beneficial effects of the present invention include at least the following: 1. This invention utilizes the phase change process of phase change materials to control the heating temperature, which can ensure that the maximum heating temperature of the mask is accurately and stably maintained at the target suitable temperature, while avoiding heating temperature exceeding the limit due to various situations, including abnormalities in the electronic control system (such as temperature sensor failure).

[0019] 2. In the heating electronic control system, the present invention uses PID control algorithm and binary method to control heating power and heat preservation power, and intelligently adjusts the heating power and heat preservation power of the heat source to the phase change material, thereby reducing energy consumption while ensuring that the heating time is controlled within a reasonable range.

[0020] 3. The present invention can utilize the residual heat of the phase change material after heating to defrost the refrigerator compartment of the beauty refrigerator and rehydrate the freeze-dried mask as needed, thereby improving energy utilization and reducing the overall energy consumption of the beauty refrigerator. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the mask heating device in this invention; Figure 2 This is a flowchart of the heating method in this invention; In the picture: 1. Heating chamber; 2. Container for heating medium; 3. Mask placement area; 4. Heating medium; 5. Heating element; 6. Air damper; 7. Air duct. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention.

[0023] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" 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 this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Furthermore, 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Embodiment 1 of the present invention provides a mask heating device, such as Figure 1 As shown, it includes a mask heating module, a temperature control module, and a waste heat utilization module; The mask heating module includes: a heating chamber 1, a heating medium container 2, and a mask placement area 3. The heating chamber 1 is used to heat the heating medium 4 in the heating medium container 2. The mask placement area 3 is located in the heating medium container 2, and the mask is placed in the mask placement area 3. The heating medium 4 is used to transfer heat to indirectly heat the mask. The temperature control module is used to monitor and adjust the temperature of the heating medium and the mask in real time. The waste heat utilization module includes a damper 6 and an air duct 7. The damper 6 is located at the bottom of the heating chamber 1, and the air duct 7 is connected to the opening of the damper 6 to transfer the waste heat of the mask heating module.

[0028] In a preferred but non-limiting embodiment of the present invention, the heating medium 4 is a phase change material with a phase change temperature of 40-50°C. Taking paraffin-based phase change material as an example, it is used as a heating medium to transfer heat through a water bath heating method, which can avoid the mask from directly contacting the high-temperature heat source.

[0029] This application utilizes phase change materials as a heating medium and controls the heating temperature of the phase change process of the phase change materials. This can ensure that the maximum heating temperature of the mask is accurately and stably maintained at the target suitable temperature to the greatest extent. At the same time, it can avoid the heating temperature exceeding the limit due to various situations, including abnormalities in the electronic control system (such as temperature sensor failure), which could lead to denaturation or failure of the active substances in the mask.

[0030] Preferably, both the heating chamber 1 and the heating medium container 2 are boxes with openings at the top, and the heating medium container 2 is nested inside the heating chamber 1.

[0031] More preferably, the heating chamber 1 includes a heating element 5, such as a PTC heating element or a heating wire, and the heating element is connected to a temperature control module for adjusting the temperature of the heating medium.

[0032] In a preferred but non-limiting embodiment of the present invention, the temperature control module includes a temperature sensor and a temperature control board. The temperature sensor is respectively disposed inside the heating medium container 2 and the mask placement area 3, and the temperature of the heating medium and the mask is monitored in real time through the temperature sensor. More preferably, the temperature sensor is electrically connected to the temperature control board, which has a built-in PID control algorithm and a binary search method. By combining the PID algorithm and the binary search method to adjust the heating power, the phase change temperature of the heating medium can be reached and maintained in a shorter time with less energy consumption.

[0033] The temperature control module of this invention uses a PID control algorithm and a binary method to control the heating power and heat preservation power, and intelligently adjusts the heating power and heat preservation power of the heat source to the phase change material, thereby reducing energy consumption while ensuring that the heating time is controlled within a reasonable range.

[0034] Embodiment 2 of the present invention provides a beauty refrigerator, including: a refrigeration area, a freeze-dried mask reconstitution area, and a mask heating device as described in Embodiment 1; The air duct 7 of the mask heating device is connected to the refrigeration area and the freeze-dried mask reconstitution area respectively. When the air damper 6 is opened, the heat of the phase change material can be conducted to the refrigeration area and the freeze-dried mask reconstitution area through the air in the air duct 7.

[0035] This invention utilizes the residual heat stored in the phase change material after heating to defrost the refrigerated compartment of a beauty refrigerator and rehydrate freeze-dried masks, thereby improving energy efficiency and reducing the overall energy consumption of the beauty refrigerator.

[0036] like Figure 2 As shown, Embodiment 3 of the present invention discloses a heating method based on the beauty refrigerator described in Embodiment 2, comprising the following steps: Step 1: Place the face mask in the face mask placement area 3. After the refrigerator detects that a face mask has been placed in, the heating element 5 heats the mask for time t1 at a heating power P1 (initial value equal to P01), and then proceeds to step 2.

[0037] Specifically, when the refrigerator is powered on and detects that a face mask has been placed inside, the heating element 5 heats the mask for time t1 at a heating power P1 (initial value equal to P01) before executing step 2.

[0038] The initial value of the heating power P1 is equal to the system setpoint P01.

[0039] Step 2: Real-time monitoring of the current temperature T1 of the phase change material 4 inside the heating medium container 2, and calculation of the temperature difference between T1 and the phase change temperature T2 of the phase change material 4. T = T2 - T1, proceed to step 3.

[0040] The phase transition temperature T2 is the final target temperature for heating the mask.

[0041] Step 3: Adjust the heating power using a PID control algorithm. After heating for time t1, proceed to step 4.

[0042] Specifically, adjust the heating power P1 to update the heating power P1 to... The The proportional gain in the PID control algorithm is the amplification factor of the proportional P part. Its value is adjusted according to the actual system characteristics (such as inertia and response speed).

[0043] Step 4: Detect whether the current temperature T1 of the phase change material 4 is equal to the phase change temperature T2. If yes, proceed to step 5; otherwise, return to step 2.

[0044] Step 5: Adjust the heating element to the heat preservation power P2, initially set the left and right boundary values ​​of the bisection method P21=0, P22=2*P2, and after heating for t2 time, proceed to step 6.

[0045] The initial value of the heat preservation power P2 is the system set value P02.

[0046] Step 6: Detect whether the current temperature T1 of the heating medium 4 is less than T2. ​​If so, proceed to step 7; otherwise, proceed to step 8.

[0047] Step 7: Update the left boundary value P21=P2 and adjust the insulation power. After heating for time t2, return to step 6.

[0048] Step 8: Detect the mask temperature T3 in real time and determine whether the current mask temperature T3 is less than the phase transition temperature T2. If so, proceed to step 9; otherwise, proceed to step 10.

[0049] Step 9: Update the right boundary value P22=P2 and adjust the insulation value. After heating for time t2, return to step 6.

[0050] Step 10: Stop heating, remind the user that heating is complete, and end heating.

[0051] like Figure 2As shown, Embodiment 4 of the present invention discloses a heating method. Based on the heating method described in Embodiment 3, a further improvement scheme is proposed for the waste heat utilization module described in Embodiment 2, including the following steps: Step 1: The refrigerator is powered on. After detecting that a face mask has been placed inside, the heating element 5 heats the mask for time t1 at a heating power of P1 (initial value equal to P01), and then proceeds to step 2.

[0052] The initial value of the heating power P1 is equal to the system setpoint P01.

[0053] Step 2: Real-time detection of the current temperature T1 of the heating medium 4 inside the heating medium container 2, and calculation of the temperature difference between the current temperature T1 and the phase change temperature T2 of the heating medium 4. T = T2 - T1, proceed to step 3.

[0054] The phase transition temperature T2 is the final target temperature for heating the mask.

[0055] Step 3: Adjust the heating power using a PID control algorithm. After heating for time t1, proceed to step 4.

[0056] Specifically, adjust the heating power P1 to update the heating power P1 to... The The proportional gain in the PID control algorithm is the amplification factor of the proportional P part. Its value is adjusted according to the actual system characteristics (such as inertia and response speed).

[0057] Step 4: Detect whether the current temperature T1 of the heating medium 4 is equal to the phase change temperature T2. If yes, proceed to step 5; otherwise, return to step 2.

[0058] Step 5: Adjust the heating element to the heat preservation power P2, and set the left and right boundary values ​​P21=0 and P22=2*P2 using the initial binary method. After heating for t2 time, proceed to step 6.

[0059] The initial value of the heat preservation power P2 is the system set value P02.

[0060] Step 6: Detect whether the current temperature T1 of the heating medium 4 is less than T2. ​​If so, proceed to step 7; otherwise, proceed to step 8.

[0061] Step 7: Update the left boundary value P21=P2 and adjust the insulation power. After heating for time t2, return to step 6.

[0062] Step 8: Detect the mask temperature T3 in real time and determine whether the current mask temperature T3 is less than the phase transition temperature T2. If so, proceed to step 9; otherwise, proceed to step 10.

[0063] Step 9: Update the right boundary value P22=P2 and adjust the insulation value. After heating for time t2, return to step 6.

[0064] Step 10: Stop heating and remind the user that heating is complete, then proceed to Step 11.

[0065] Step 11: Check if there is a defrosting request in the current beauty refrigerator's refrigeration area and a rehydration request in the freeze-dried mask rehydration area. If so, proceed to step 12; otherwise, end the heating process.

[0066] Step 12: Open the corresponding air vents to transfer the temperature of the heating medium to the refrigeration area and / or the freeze-dried mask rehydration area through air circulation.

[0067] Embodiment 5 of the present invention discloses an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is loaded onto the processor, it implements the heating method according to Embodiment 3 or Embodiment 4.

[0068] Embodiment 6 of the present invention discloses a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the heating method according to Embodiment 3 or Embodiment 4.

[0069] Compared with the prior art, the beneficial effects of the present invention include at least the following: 1. This invention utilizes the phase change process of phase change materials to control the heating temperature, which can ensure that the maximum heating temperature of the mask is accurately and stably maintained at the target suitable temperature, while avoiding heating temperature exceeding the limit due to various situations, including abnormalities in the electronic control system (such as temperature sensor failure).

[0070] 2. In the heating electronic control system, the present invention uses PID control algorithm and binary method to control heating power and heat preservation power, and intelligently adjusts the heating power and heat preservation power of the heat source to the phase change material, thereby reducing energy consumption while ensuring that the heating time is controlled within a reasonable range.

[0071] 3. The present invention can utilize the residual heat of the phase change material after heating to defrost the refrigerator compartment of the beauty refrigerator and rehydrate the freeze-dried mask as needed, thereby improving energy utilization and reducing the overall energy consumption of the beauty refrigerator.

[0072] It is worth noting that in the embodiments of the present invention, "steps + numbers" is only a way of expressing the specific implementation of the test method, and not an absolute restriction on the order of the steps. Under the guidance of the core concept of the present invention, changing the order of these steps to obtain the same or similar technical effects all fall within the scope of the present invention.

[0073] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0074] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0075] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0076] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A facial mask heating device, characterized in that: include: Mask heating module, temperature control module, and waste heat utilization module; The mask heating module includes: a heating chamber (1), a heating medium container (2), and a mask placement area (3). The heating chamber (1) is used to heat the heating medium (4) in the heating medium container (2). The mask placement area (3) is located in the heating medium container (2), and the mask is placed in the mask placement area (3). The heating medium (4) is used to transfer heat to indirectly heat the mask. The temperature control module is used to monitor and adjust the temperature of the heating medium and the mask in real time. The waste heat utilization module includes a damper (6) and an air duct (7), which are located at the bottom of the heating chamber (1) and are used to transfer the waste heat of the mask heating module.

2. The facial mask heating device according to claim 1, characterized in that: The heating medium (4) uses a phase change material with a phase change temperature of 40-50℃ as the heating medium and transfers heat through a water bath heating method.

3. The facial mask heating device according to claim 1, characterized in that: The heating chamber (1) and the heating medium container (2) are both boxes with openings at the top, and the heating medium container (2) is nested in the heating chamber (1).

4. The facial mask heating device according to claim 1, characterized in that: The heating chamber (1) includes a heating element (5), which is connected to the temperature control module and is used to adjust the temperature of the heating medium (4).

5. A facial mask heating device according to claim 1, characterized in that: The temperature control module includes a temperature sensor, which is respectively installed inside the heating medium container (2) and the mask placement area (3). The temperature sensor monitors the temperature of the heating medium (4) and the mask in real time.

6. A facial mask heating device according to claim 5, characterized in that: The temperature control module also includes a temperature control board, the temperature sensor is electrically connected to the temperature control board, and the temperature control board has a built-in PID control algorithm and a binary search method.

7. A facial mask heating device according to claim 1, characterized in that: The air duct (7) is connected to the opening of the air door (6).

8. A beauty refrigerator, characterized in that: Includes a facial mask heating device and a refrigeration area and a freeze-dried facial mask reconstitution area as described in any one of claims 1-7; The refrigeration area and the freeze-dried mask reconstitution area are respectively connected to the air duct (7). When the air door (6) is opened, the heat of the heating medium (4) is conducted to the refrigeration area and the freeze-dried mask reconstitution area through the air in the air duct (7).

9. A heating method, based on the beauty refrigerator of claim 8, characterized in that: Includes the following steps: Step 1: After the beauty refrigerator detects that a face mask has been placed inside, it heats the mask at a power of P01 for a time t1, and then proceeds to Step 2. Step 2: Real-time detection of the current temperature T1 of the heating medium (4), and calculation of the temperature difference between the current temperature T1 and the phase change temperature T2 of the heating medium (4). T = T2 - T1, proceed to step 3; Step 3: Based on temperature difference T, adjust the heating power P1 using the PID control algorithm, and after heating for t1 time, execute step 4; Step 4: Determine whether the current temperature T1 of the heating medium (4) is equal to the phase change temperature T2. If yes, proceed to step 5; otherwise, return to step 2. Step 5: Using the initial bisection method, set the left boundary value P21=0 and the right boundary value P22=2*P2 for the heat preservation power P2. After heating for t2 time with the heat preservation power P2, proceed to step 6. Step 6: Determine whether the current temperature T1 of the heating medium (4) is less than the phase change temperature T2. If yes, proceed to step 7; otherwise, proceed to step 8. Step 7: Update the left boundary value P21=P2 and adjust the insulation power. After heating for time t2, return to step 6; Step 8: Detect the mask temperature T3 in real time and determine whether the current mask temperature T3 is less than the phase transition temperature T2. If so, proceed to step 9; otherwise, proceed to step 10. Step 9: Update the right boundary value P22=P2 and adjust the insulation value. After heating for time t2, return to step 6; Step 10: Stop heating and remind the user that heating is complete.

10. A heating method according to claim 9, characterized in that: In step 3, the heating power P1 is adjusted to be updated to be... The This refers to the proportional gain in the PID control algorithm.

11. A heating method according to claim 9, characterized in that: After the user is reminded that the heating is complete, the system checks whether there is a defrosting request in the refrigeration area of ​​the current beauty refrigerator and whether there is a re-dissolving request in the freeze-dried mask re-dissolving area. If so, the system opens the air vent (6) and transfers the temperature of the heating medium (4) to the refrigeration area and / or the freeze-dried mask re-dissolving area through air circulation. If not, the heating ends.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the heating method according to any one of claims 9-11.

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