Refrigerators with color-changing doors used as status indicators and their control methods

Abstract

The application provides a refrigerator with a color-changing door for state indication and a control method thereof, the refrigerator comprising a color-changing door body assembly, a cabinet, an app module, a WiFi module, an integrated temperature sensor and a control module; the color-changing door body assembly is hinged to the cabinet; the cabinet is provided with a plurality of compartments, the color-changing door body assembly comprises a plurality of color-changing door bodies, and the compartments are hinged to the color-changing door bodies; the control module acquires food material information in the compartments through the app module; when the food material period in the food material information reaches the shelf life, the control module controls the color-changing door body connected with the compartment to change the color state, so as to prompt that the food material is about to expire; the WiFi module is used to acquire real-time weather information; the color-changing door body is controlled to change the color state according to the weather information, so as to prompt the weather; the integrated temperature sensor is used to detect the temperature of the compartment in real time; when the temperature of the compartment is higher than the preset temperature of the compartment, the color-changing door body connected with the compartment is controlled to change the color state, so as to prompt the abnormal temperature.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and more particularly to a refrigerator with a color-changing door used as a status indicator and a control method thereof. Background Technology

[0002] A refrigerator is an electrical appliance used to keep food and other items at a constant low temperature. With the improvement of living standards, refrigerators, as essential household appliances, are receiving increasing attention for their functionality and user experience.

[0003] Refrigerators in related technologies use lights or sounds to indicate their operating status, but these methods often lack intuitiveness, making it difficult for users to quickly determine the refrigerator's specific condition. For example, if the internal temperature of the refrigerator is too high, a conventional display panel / app may not show this immediately, leading to food spoilage. However, as modern families increasingly demand food preservation and safety, especially in hot summer weather or during power outages, quickly identifying the refrigerator's status is particularly important. Therefore, there is an urgent need to address the problem of users being unable to promptly grasp the refrigerator's operating status. Summary of the Invention

[0004] This application provides a refrigerator with a color-changing door used as a status indicator and a control method thereof to solve the problem that users cannot keep track of the refrigerator's working status in a timely manner.

[0005] The first aspect of this application provides a refrigerator with a color-changing door used as a status indicator, including: a color-changing door body assembly, a cabinet, an app module, a WiFi module, an integrated temperature sensor, and a control module;

[0006] The color-changing door assembly is hinged to the housing; the housing contains several compartments, and the color-changing door assembly includes several color-changing doors, with each compartment hinged to one of the color-changing doors; the integrated temperature sensor is located inside each compartment, and the control module is communicatively connected to the app module, the WiFi module, the integrated temperature sensor, and the color-changing door; the control module is configured to:

[0007] The app module obtains information about the ingredients in the room.

[0008] When the food expiration date in the food information reaches its shelf life, the color-changing door connected to the compartment is controlled to change its color state to indicate that the food is about to expire.

[0009] Real-time weather information is obtained through the WiFi module;

[0010] The color-changing door is controlled to change its color status according to the real-time weather information to indicate the weather conditions.

[0011] The temperature of the room is detected in real time using the integrated temperature sensor.

[0012] When the temperature of the compartment is higher than the preset temperature of the compartment, the color-changing door connected to the compartment is controlled to change its color state to indicate an abnormal temperature.

[0013] The refrigerator with the color-changing door used as a status indicator can monitor the internal status of the refrigerator in real time and control the color change of the door body according to the internal status of the refrigerator to clearly convey the status indication information of the refrigerator. This not only improves the user experience, but also effectively prevents food safety issues and solves the problem that users cannot keep track of the refrigerator's working status in a timely manner.

[0014] Optionally, the refrigerator also includes a radar sensor;

[0015] The radar sensor is mounted on the housing, and the control module is communicatively connected to the radar sensor; the control module is configured to:

[0016] The radar sensor detects in real time whether anyone enters within a preset range of the refrigerator;

[0017] If no one enters the preset range of the refrigerator, the radar sensor continues to detect in real time whether anyone has entered the preset range of the refrigerator.

[0018] If someone enters within the preset range of the refrigerator, the color-changing door connected to the compartment will be controlled to change its color.

[0019] The refrigerator, which uses the color-changing door as a status indicator, can control the color-changing door connected to the compartment to change its color state when it detects someone within a preset range of the refrigerator. This reduces power consumption and unnecessary operation and running time, effectively extending the service life of the color-changing door.

[0020] Optionally, the control module is configured as follows:

[0021] The radar sensor detects in real time whether the color-changing door is closed.

[0022] If the color-changing door is not closed and someone enters within the preset range of the refrigerator, the color-changing door will be controlled to change its color state to indicate that the door is not closed.

[0023] The refrigerator, whose color-changing door serves as a status indicator, can detect whether the color-changing door is closed and whether anyone has entered within a preset range of the refrigerator using the radar sensor. It can then control the color-changing door to change its color status to promptly remind the user, preventing food spoilage or energy waste caused by forgetting to close the door. This also reduces the refrigerator's energy consumption and extends its service life.

[0024] Optionally, the outer surface of the color-changing door is equipped with a full-color LED display screen; the control module is communicatively connected to the full-color LED display screen.

[0025] The full-color LED display screen can show a variety of pure color states, so that the color and light on the outer surface of the color-changing door can be richer, and the refrigerator can be decorated according to the user's preferences.

[0026] Optionally, the control module is configured as follows:

[0027] Obtain a timed do-not-disturb command through the app module;

[0028] According to the timed do-not-disturb command, the color-changing door assembly is controlled to turn off the full-color LED display screen within a preset time period.

[0029] The app module obtains a timed do-not-disturb command to control the color-changing door component to turn off the full-color LED display screen within a preset time period. This avoids unnecessary light pollution or visual interference from the color-changing door component during periods when the user does not wish to be disturbed, thereby providing a more comfortable and quiet environment.

[0030] Optionally, the control module is configured as follows:

[0031] The app module obtains the user's personalized color status customization instructions.

[0032] The color status parameters are set according to the user's personalized color status customization instructions so that different status indication information is indicated by different color status prompts.

[0033] Users can customize the color status according to their needs and preferences through the app module, making the user experience more personalized and intuitive, enabling them to more quickly identify and understand the current status indication information, and making the color status more in line with the user's personal style.

[0034] Optionally, the color state parameters include color parameters, brightness parameters, and flicker parameters.

[0035] By adjusting the color state parameters, precise control over the color state can be achieved, thereby meeting the needs of different scenarios.

[0036] Optionally, the control module is configured as follows:

[0037] The energy-saving mode command is obtained through the app module;

[0038] The brightness parameters are adjusted according to the energy-saving mode command to reduce power consumption.

[0039] By intelligently adjusting the brightness parameters of the color-changing door through the app module, unnecessary energy consumption can be significantly reduced, saving a lot of electricity when full brightness is not required.

[0040] Optionally, the refrigerator further includes an odor sensor disposed inside the compartment, and the control module is communicatively connected to the odor sensor. The control module is configured to:

[0041] The concentration of odor molecules is obtained in real time through the odor sensor;

[0042] If the concentration of the odor molecules exceeds a preset concentration value, the color-changing door connected to the compartment is controlled to change its color state to indicate that the food has spoiled.

[0043] The odor sensor acquires the concentration of odor molecules in real time to determine whether the food in the compartment has spoiled. Then, the color-changing door connected to the compartment with spoiled food changes color to indicate that the food has spoiled. This allows users to quickly identify which compartment has spoiled food and remind them to deal with expired or spoiled food in time. Furthermore, the location of spoiled food can be identified without opening the refrigerator to check each compartment, greatly improving the convenience and efficiency of use.

[0044] A second aspect of this application provides a refrigerator control method for using a color-changing door as a status indicator, applied to the refrigerator described in the first aspect where the color-changing door is used as a status indicator; the method includes:

[0045] Information about the ingredients inside the room can be obtained through the app module;

[0046] When the expiration date of the food in the food information reaches its shelf life, the color-changing door connected to the compartment is controlled to change its color to indicate that the food is about to expire.

[0047] Real-time weather information is obtained via WiFi module;

[0048] The color-changing door is controlled to change its color status according to the real-time weather information to indicate the weather conditions.

[0049] The temperature of the chamber is detected in real time by an integrated temperature sensor;

[0050] When the temperature of the compartment is higher than the preset temperature of the compartment, the color-changing door connected to the compartment is controlled to change its color state to indicate an abnormal temperature.

[0051] The above method can monitor the internal status of the refrigerator in real time and control the color change of the color-changing door according to the internal status of the refrigerator, so as to clearly convey the status indication information of the refrigerator. This not only improves the user experience, but also effectively prevents food safety and solves the problem that users cannot keep track of the refrigerator's working status in a timely manner.

[0052] As can be seen from the above technical solutions, this application provides a refrigerator with a color-changing door used as a status indicator and its control method. The refrigerator includes: a color-changing door assembly, a cabinet, an app module, a WiFi module, an integrated temperature sensor, and a control module; the color-changing door assembly is hinged to the cabinet; the cabinet has several compartments, and the color-changing door assembly includes several color-changing doors, with each compartment hinged to the color-changing door; the integrated temperature sensor is disposed inside each compartment, and the control module is communicatively connected to the app module, the WiFi module, the integrated temperature sensor, and the color-changing door. The control module obtains food information within the compartment via the app module. When the food's expiration date is approaching, it controls the color-changing door connected to the compartment to change its color to indicate that the food is about to expire. It also obtains real-time weather information via the WiFi module and controls the color-changing door to change its color based on the weather information to indicate the weather conditions. Furthermore, it uses an integrated temperature sensor to monitor the compartment's temperature in real time. When the compartment's temperature exceeds a preset temperature, it controls the color-changing door to change its color to indicate an abnormal temperature. This addresses the problem of users not being able to promptly monitor the refrigerator's operating status. Attached Figure Description

[0053] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a flowchart illustrating a refrigerator control method for using a color-changing door as a status indicator, as described in an embodiment of this application.

[0055] Figure 2 This is a schematic diagram of the first interface of the app module in a refrigerator where the color-changing door is used as a status indicator, as described in an embodiment of this application.

[0056] Figure 3 This is a schematic diagram of the second interface of the app module in a refrigerator where the color-changing door is used as a status indicator, as described in an embodiment of this application. Detailed Implementation

[0057] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application.

[0058] To address the issue of users being unable to promptly monitor the refrigerator's operating status, some embodiments of this application provide a refrigerator with a color-changing door used as a status indicator, comprising: a color-changing door assembly, a cabinet, an app module, a WiFi module, an integrated temperature sensor, and a control module;

[0059] The color-changing door assembly is hinged to the housing; the housing has several compartments, and the color-changing door assembly includes several color-changing doors, with the compartments hinged to the color-changing doors; the integrated temperature sensor is located inside the compartment, and the control module is communicatively connected to the app module, the WiFi module, the integrated temperature sensor, and the color-changing door.

[0060] It should be understood that the control module can be a microcontroller; the app module is an application program installed on any terminal device. Taking a four-door refrigerator as an example, the specific interface of the app module can be found in [reference needed]. Figure 2 and Figure 3 .

[0061] The control module is configured as follows:

[0062] The app module obtains information about the ingredients in the room.

[0063] When the food expiration date in the food information reaches its shelf life, the color-changing door connected to the compartment is controlled to change its color state to indicate that the food is about to expire.

[0064] Real-time weather information is obtained through the WiFi module;

[0065] The color-changing door is controlled to change its color status according to the real-time weather information to indicate the weather conditions.

[0066] The temperature of the room is detected in real time using the integrated temperature sensor.

[0067] When the temperature of the compartment is higher than the preset temperature of the compartment, the color-changing door connected to the compartment is controlled to change its color state to indicate an abnormal temperature.

[0068] It should be understood that the food information on the app module can be recorded when the user places the food in the compartment, specifically including the name, production date, shelf life, and placement date. The preset temperature of the compartment is the highest storage temperature set inside the compartment during factory testing based on food preservation requirements.

[0069] The refrigerator with the color-changing door used as a status indicator can monitor the internal status of the refrigerator in real time and control the color change of the door body according to the internal status of the refrigerator to clearly convey the status indication information of the refrigerator. This not only improves the user experience, but also effectively prevents food safety issues and solves the problem that users cannot keep track of the refrigerator's working status in a timely manner.

[0070] In some embodiments, the refrigerator with the color-changing door used as a status indicator further includes a radar sensor;

[0071] The radar sensor is mounted on the housing, and the control module is communicatively connected to the radar sensor; the control module is configured to:

[0072] The radar sensor detects in real time whether anyone enters within a preset range of the refrigerator;

[0073] If no one enters the preset range of the refrigerator, the radar sensor continues to detect in real time whether anyone has entered the preset range of the refrigerator.

[0074] If someone enters within the preset range of the refrigerator, the color-changing door connected to the compartment will be controlled to change its color.

[0075] It should be understood that the preset range of the refrigerator can be set to 1 meter to 10 meters. The refrigerator, whose color-changing door serves as a status indicator, can control the color-changing door connected to the compartment to change its color state when it detects someone within the preset range, thereby reducing power consumption and unnecessary operation and running time, and effectively extending the service life of the color-changing door.

[0076] In some embodiments, the control module is configured to:

[0077] The radar sensor detects in real time whether the color-changing door is closed.

[0078] If the color-changing door is not closed and someone enters within the preset range of the refrigerator, the color-changing door will be controlled to change its color state to indicate that the door is not closed.

[0079] The refrigerator, whose color-changing door serves as a status indicator, can detect whether the color-changing door is closed and whether anyone has entered within a preset range of the refrigerator using the radar sensor. It can then control the color-changing door to change its color status to promptly remind the user, preventing food spoilage or energy waste caused by forgetting to close the door. This also reduces the refrigerator's energy consumption and extends its service life.

[0080] In some embodiments, the outer surface of the color-changing door is provided with a full-color LED display screen; the control module is communicatively connected to the full-color LED display screen.

[0081] The full-color LED display screen can show a variety of pure color states, enriching the color and light on the exterior surface of the color-changing door, thus allowing the refrigerator to be decorated according to user preferences. Specifically, users can set the refrigerator color based on the colors of the surrounding furniture, and can also upload images to display on the color-changing door assembly to decorate the refrigerator.

[0082] In some embodiments, the control module is configured to:

[0083] Obtain a timed do-not-disturb command through the app module;

[0084] According to the timed do-not-disturb command, the color-changing door assembly is controlled to turn off the full-color LED display screen within a preset time period.

[0085] It should be understood that during certain time periods, such as when sleeping at night or watching a projector, users may not wish to be disturbed by the light emitted by the color-changing door component. They can obtain a timed "Do Not Disturb" command through the app module to control the color-changing door component to turn off the full-color LED display screen during a preset period. The preset period can be arbitrarily selected, for example, it can be set to 23:00-07:00 the next day, to avoid unnecessary light pollution or visual interference from the color-changing door component during periods when users do not wish to be disturbed, thereby providing a more comfortable and quiet environment.

[0086] In some embodiments, the control module is configured to:

[0087] The app module obtains the user's personalized color status customization instructions.

[0088] The color status parameters are set according to the user's personalized color status customization instructions so that different status indication information is indicated by different color status prompts.

[0089] Specifically, if the color-changing door is not closed and someone enters within the preset range of the refrigerator, the color-changing door is controlled to change its color to a flashing yellow; if the food expiration date in the food information reaches its shelf life, the color-changing door connected to the compartment is controlled to change its color to a solid yellow; if the temperature of the compartment is higher than the preset temperature of the compartment, the color-changing door connected to the compartment is controlled to change its color to a solid red; if the weather information is a weather warning, the color-changing door is controlled to change its color to orange; if the weather information is sunny, the color-changing door is controlled to change its color to blue; if the weather information is cloudy, the color-changing door is controlled to change its color to purple.

[0090] Users can customize the color status according to their needs and preferences through the app module, making the user experience more personalized and intuitive, enabling them to more quickly identify and understand the current status indication information, and making the color status more in line with the user's personal style.

[0091] In some embodiments, the color state parameters include color parameters, brightness parameters, and flicker parameters.

[0092] By adjusting the color state parameters, precise control over the color state can be achieved, thereby meeting the needs of different scenarios.

[0093] In some embodiments, the control module is configured to:

[0094] The energy-saving mode command is obtained through the app module;

[0095] The brightness parameters are adjusted according to the energy-saving mode command to reduce power consumption.

[0096] By intelligently adjusting the brightness parameters of the color-changing door through the app module, unnecessary energy consumption can be significantly reduced, saving a lot of electricity when full brightness is not required.

[0097] In some embodiments, the refrigerator with the color-changing door serving as a status indicator further includes an odor sensor disposed inside the compartment. The control module is communicatively connected to the odor sensor and is configured to:

[0098] The concentration of odor molecules is obtained in real time through the odor sensor;

[0099] If the concentration of the odor molecules exceeds a preset concentration value, the color-changing door connected to the compartment is controlled to change its color state to indicate that the food has spoiled.

[0100] Specifically, if the food expiration date in the food information reaches its shelf life, the color-changing door connected to the compartment is controlled to change its color to a long, bright brown.

[0101] The odor sensor acquires the concentration of odor molecules in real time to determine whether the food in the compartment has spoiled. Then, the color-changing door connected to the compartment with spoiled food changes color to indicate that the food has spoiled. This allows users to quickly identify which compartment has spoiled food and remind them to deal with expired or spoiled food in time. Furthermore, the location of spoiled food can be identified without opening the refrigerator to check each compartment, greatly improving the convenience and efficiency of use.

[0102] This application also provides a refrigerator control method for using a color-changing door as a status indicator in some embodiments, applied to the refrigerator described in the above embodiments where the color-changing door is used as a status indicator; see also Figure 1 The method includes:

[0103] S110: Obtain information about the ingredients in the room through the app module.

[0104] S120: When the food expiration date in the food information reaches the shelf life, control the color-changing door connected to the compartment to change its color state to indicate that the food is about to expire.

[0105] S210: Real-time weather information is obtained via WiFi module.

[0106] S220: Control the color-changing door to change its color state according to the real-time weather information to indicate the real-time weather.

[0107] S310: The temperature of the compartment is detected in real time by an integrated temperature sensor.

[0108] S320: When the temperature of the room is higher than the preset temperature of the room, the color-changing door connected to the room is controlled to change its color state to indicate an abnormal temperature.

[0109] The above method can monitor the internal status of the refrigerator in real time and control the color change of the color-changing door according to the internal status of the refrigerator, so as to clearly convey the status indication information of the refrigerator. This not only improves the user experience, but also effectively prevents food safety and solves the problem that users cannot keep track of the refrigerator's working status in a timely manner.

[0110] In some embodiments, see again Figure 1 The method is as follows:

[0111] S410: Real-time detection of whether anyone enters within a preset range of the refrigerator using radar sensors.

[0112] S420: If no one enters the preset range of the refrigerator, the radar sensor continues to detect in real time whether anyone has entered the preset range of the refrigerator.

[0113] S430: If someone enters within the preset range of the refrigerator, the color-changing door connected to the compartment is controlled to change its color state.

[0114] The above method can control the color-changing door connected to the compartment to change its color state when a person is detected within a preset range of the refrigerator, thereby reducing power consumption and unnecessary operation and running time, and effectively extending the service life of the color-changing door.

[0115] As can be seen from the above technical solutions, this application provides a refrigerator with a color-changing door used as a status indicator and a control method thereof. The refrigerator includes: a color-changing door assembly, a cabinet, an app module, a WiFi module, an integrated temperature sensor, and a control module; the color-changing door assembly is hinged to the cabinet; the cabinet has a plurality of compartments, and the color-changing door assembly includes a plurality of color-changing doors, the compartments being hinged to the color-changing doors; the integrated temperature sensor is disposed inside the compartment, and the control module communicates with the app module, the WiFi module, the integrated temperature sensor, and the color-changing doors respectively. The system connects to the refrigerator; the control module obtains food information within the compartment via the app module; when the food's expiration date is approaching, it controls the color-changing door connected to the compartment to change its color to indicate that the food is about to expire; it obtains real-time weather information via the WiFi module; based on the weather information, it controls the color-changing door to change its color to indicate the weather conditions; and it monitors the compartment temperature in real-time via the integrated temperature sensor; when the compartment temperature exceeds a preset temperature, it controls the color-changing door connected to the compartment to change its color to indicate an abnormal temperature. This solves the problem of users not being able to promptly monitor the refrigerator's operating status.

[0116] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A refrigerator in which a color-changing door is used as a state indicator, characterized by, The application relates to a refrigerator door body assembly, a box body, an app module, a WiFi module, an integrated temperature sensor, a radar sensor and a control module. The refrigerator door body assembly is hinged to the box body; the box body is internally provided with a plurality of compartments; the refrigerator door body assembly comprises a plurality of refrigerator door bodies; the compartments are hinged to the refrigerator door bodies; the integrated temperature sensor is arranged inside the compartments; the control module is in communication connection with the app module, the WiFi module, the integrated temperature sensor and the refrigerator door bodies; the control module is configured to: acquire food material information in the compartments through the app module; when the food material information reaches a shelf life, control the refrigerator door bodies connected with the compartments to change color states to prompt that the food material is about to expire; acquire real-time weather information through the WiFi module; control the refrigerator door bodies to change color states according to the real-time weather information to prompt the real-time weather; detect the temperature of the compartments in real time through the integrated temperature sensor; when the temperature of the compartments is higher than a preset temperature of the compartments, control the refrigerator door bodies connected with the compartments to change color states to prompt that the temperature is abnormal; the radar sensor is arranged on the box body, and the control module is in communication connection with the radar sensor; the control module is configured to: detect whether a person enters a preset range of the refrigerator in real time through the radar sensor; if no person enters the preset range of the refrigerator, continue to detect whether a person enters the preset range of the refrigerator in real time through the radar sensor; if a person enters the preset range of the refrigerator, control the refrigerator door bodies connected with the compartments to change color states; detect whether the refrigerator door bodies are closed in real time through the radar sensor; if the refrigerator door bodies are not closed and a person enters the preset range of the refrigerator, control the refrigerator door bodies to change color states to prompt that the refrigerator door bodies are not closed; acquire user individualized color state customization instructions through the app module; set color state parameters according to the user individualized color state customization instructions to make different state indication information be prompted by different color states; the color state parameters comprise color parameters, brightness parameters and flashing parameters. An outer surface of the refrigerator door body is provided with a full-color LED display screen; the control module is in communication connection with the full-color LED display screen. The control module is configured to: acquire a timing do-not-disturb instruction through the app module; and control the refrigerator door body assembly to close the full-color LED display screen in a preset time period according to the timing do-not-disturb instruction. The control module is configured to: acquire an energy-saving mode instruction through the app module; and adjust the brightness parameters according to the energy-saving mode instruction to reduce power consumption. The application further comprises an odor sensor arranged inside the compartments; the control module is in communication connection with the odor sensor; and the control module is configured to: acquire an odor molecule concentration in real time through the odor sensor. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The color changing door for use as a status indicator refrigerator according to claim 1, characterized in that, ​ 3. The color changing door for use as a status indicator refrigerator according to claim 2, characterized in that, ​ ​ ​ 4. The color changing door for use as a status indicator refrigerator according to claim 1, characterized in that, ​ ​ ​ 5. The color changing door for use as a status indicator refrigerator according to claim 1, characterized in that, ​ ​ If the concentration of the odor molecules exceeds the preset concentration value, the color-changing door body connected with the chamber is controlled to change the color state to prompt that the food material has deteriorated.

6. A refrigerator control method using a color-changing door as a status indicator, characterized by, The application is applied to the refrigerator using the color-changing door as state indication according to any one of claims 1-5; the method comprises: acquiring food material information in the chamber through an app module; when the food material expiration date in the food material information reaches the shelf life, the color-changing door body connected with the chamber is controlled to change the color state to prompt that the food material is about to expire; real-time weather live information is acquired through a WiFi module; the color-changing door body is controlled to change the color state according to the weather live information to prompt the weather live; the temperature of the chamber is detected in real time through an integrated temperature sensor; when the temperature of the chamber is higher than the preset temperature of the chamber, the color-changing door body connected with the chamber is controlled to change the color state to prompt temperature abnormality.

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