Refrigerator and control method thereof

Abstract

The application belongs to the technical field of refrigerators, and provides a refrigerator and a control method thereof. In the refrigerator, a wind channel cover plate is used to control the on-off of a wind channel and a first chamber; a first fan is used to deliver cold energy generated by an evaporator to the first chamber and a second chamber through the wind channel; a second fan is arranged in the first chamber and is used to enhance air disturbance in the first chamber; a semiconductor refrigeration module is arranged between the first chamber and the second chamber; a backflow channel that is in communication with a space where the evaporator is located is arranged in the second chamber; a controller is connected with the wind channel cover plate, the first fan, the second fan, the semiconductor refrigeration module and a compressor, and is configured to: in response to a deep cooling mode switching instruction, control the first chamber to operate in a deep cooling mode; according to an accumulated running time length of the compressor and a real-time temperature of the first chamber, control the compressor, the semiconductor refrigeration module and the first fan to operate at a target gear, so that the real-time temperature of the first chamber is maintained in a preset deep cooling interval.

Description

Technical Field

[0001] This application belongs to the field of refrigerator technology, and more specifically, relates to a refrigerator and its control method. Background Technology

[0002] As residents' living standards improve, users' demands for refrigerators have evolved from basic refrigeration and freezing to a more diversified range of features, including deep-freezing preservation and gentle thawing.

[0003] However, most refrigerators on the market currently have limited functions. Even if some refrigerators have a deep-freezing compartment or a defrosting compartment, the deep-freezing compartment and the defrosting compartment are set up independently, resulting in low space utilization. The various components of the refrigerator lack coordinated control, leading to serious waste of cooling capacity and high energy consumption.

[0004] In addition, cryogenic control methods mostly use fixed power, resulting in low temperature control accuracy and low energy utilization, which cannot meet users' food storage needs. Summary of the Invention

[0005] The purpose of this application is to provide a refrigerator and its control method, which aims to solve the technical problems of low temperature control accuracy and low energy utilization in the deep-cold control method of existing refrigerators.

[0006] To achieve the above objectives, according to a first aspect of this application, a refrigerator is provided, the refrigerator comprising: The enclosure includes a first compartment and a second compartment arranged adjacent to each other. The enclosure is equipped with an air duct, an evaporator, a compressor, an air duct cover, a first fan, a second fan, and a semiconductor refrigeration module. The duct cover is disposed on the duct and is used to control the connection between the duct and the first compartment; The first fan is used to transport the cooling energy generated by the evaporator to the first compartment and the second compartment through the air duct; The second fan is installed in the first room to enhance air disturbance in the first room; The semiconductor cooling module is disposed between the first compartment and the second compartment, and has a first output terminal and a second output terminal that can switch between cold and hot output; The second chamber is provided with a reflux channel that communicates with the space where the evaporator is located; The controller, connected to the duct cover, the first fan, the second fan, the semiconductor refrigeration module, and the compressor, is configured to: In response to the deep cooling mode switching command, the first chamber is controlled to operate in deep cooling mode, wherein, in the deep cooling mode, the air duct cover is opened, the first fan delivers cold air to the first chamber, the first output terminal of the semiconductor refrigeration module releases cold energy toward the first chamber, and the second output terminal of the semiconductor refrigeration module releases heat toward the second chamber. Based on the cumulative running time of the compressor and the real-time temperature of the first chamber, the compressor, the semiconductor refrigeration module, and the first fan are controlled to operate at the target speed so that the real-time temperature of the first chamber is maintained within the preset deep-cooling range.

[0007] The beneficial effects of the embodiments in this application compared with the prior art are: Unlike existing technologies that use fixed power to achieve deep-cold control, this application embodiment dynamically adjusts the operating levels of the compressor, semiconductor refrigeration module, and first fan when the first compartment is in deep-cold mode, based on the cumulative running time of the compressor and the real-time temperature of the first compartment. This achieves the goal of maintaining the temperature of the first compartment within a preset deep-cold range, effectively avoiding over-cooling or under-cooling, effectively reducing nutrient loss from food, and improving preservation.

[0008] With a bidirectional output design (first and second output terminals) for the semiconductor refrigeration module, and the ability to switch between cold and hot output from the first and second output terminals, in the deep-cooling mode of the first compartment, the first fan delivers cold air to the first compartment, the first output terminal of the semiconductor refrigeration module releases cold energy towards the first compartment, and the second output terminal releases heat towards the second compartment. Furthermore, the return channel in the second compartment can circulate the cold energy from the first compartment and the semiconductor refrigeration module to the components requiring cooling, avoiding waste of cold energy. This allows for the full utilization of the heat generated during semiconductor refrigeration, helping the second compartment maintain its normal freezing temperature without requiring additional compressor load for cooling, achieving energy cascade utilization and reducing overall energy consumption. Through the synergistic effect of the fan and semiconductor refrigeration, the overall energy consumption of the refrigerator is reduced, balancing energy saving and practicality.

[0009] According to a second aspect of this application, a method for controlling a refrigerator is provided. The refrigerator includes: a cabinet containing a first compartment and a second compartment arranged adjacent to each other. The cabinet is provided with an air duct, an evaporator, a compressor, an air duct cover, a first fan, a second fan, and a semiconductor refrigeration module. The duct cover is disposed on the duct and is used to control the connection between the duct and the first compartment; The first fan is used to transport the cooling energy generated by the evaporator to the first compartment and the second compartment through the air duct; The second fan is installed in the first room to enhance air disturbance in the first room; The semiconductor cooling module is disposed between the first compartment and the second compartment, and has a first output terminal and a second output terminal that can switch between cold and hot output; The second chamber is provided with a reflux channel that communicates with the space where the evaporator is located; The control method includes: In response to the deep cooling mode switching command, the first chamber is controlled to operate in deep cooling mode, wherein, in the deep cooling mode, the air duct cover is opened, the first fan delivers cold air to the first chamber, the first output terminal of the semiconductor refrigeration module releases cold energy toward the first chamber, and the second output terminal of the semiconductor refrigeration module releases heat toward the second chamber. Based on the cumulative running time of the compressor and the real-time temperature of the first chamber, the compressor, the semiconductor refrigeration module, and the first fan are controlled to operate at the target speed so that the real-time temperature of the first chamber is maintained within the preset deep-cooling range.

[0010] According to a third aspect of this application, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the electronic device causes the electronic device to perform the method as described in any one of the claims.

[0011] According to a fourth aspect of this application, a computer-readable storage medium is provided that stores a computer program, which, when executed by a processor, implements the method as described in any one of the claims.

[0012] According to a fifth aspect of this application, a computer program product is provided that, when run on an electronic device, causes the electronic device to perform the method described in any one of the first aspects above.

[0013] It is understandable that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application; Figure 2This is a schematic diagram of an optional refrigerator structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of an optional refrigerator structure provided in an embodiment of this application; Figure 4 This is a schematic diagram of an optional refrigerator structure provided in an embodiment of this application; Figure 5 This is a flowchart illustrating a refrigerator control method provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a refrigerator control device provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0016] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0017] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0018] It should also be understood that, in the description of this application, unless otherwise stated, the " / " used in the specification and appended claims indicates that the related objects are in an "or" relationship. For example, A / B can mean A or B. The "and / or" in this application is merely a description of the relationship between the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B together, or B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0019] Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, but are only used for distinguishing descriptions, and the terms "first" and "second" do not necessarily imply that they are different, nor should they be construed as indicating or implying relative importance.

[0020] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0021] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0022] As residents' living standards improve, users' functional needs for refrigerators have evolved from basic refrigeration and freezing to diversified needs that combine deep-freezing preservation, gentle thawing, and energy efficiency. In particular, the demand for deep-freezing storage (locking in nutrients) and safe thawing (preserving taste) of food is becoming increasingly urgent. This requires refrigerators not only to have basic cooling capabilities, but also to be able to flexibly switch between deep-freezing and thawing modes, as well as to ensure the coordinated and efficient operation of all components.

[0023] Currently, most refrigerators on the market only have single refrigeration and freezing functions. Even if some refrigerators have a deep-freezing compartment or a defrosting compartment, they still have the following drawbacks: On the one hand, the deep-freezing compartment and the defrosting compartment are independent of each other and cannot switch functions, resulting in low utilization of the internal space of the refrigerator and failing to meet the user's needs in different scenarios; on the other hand, the components of existing refrigerators (air duct cover, first fan, second fan, semiconductor refrigeration module, compressor, etc.) lack coordinated control logic. Each component operates independently and cannot form a linkage effect, resulting in low temperature control accuracy in deep-freezing mode, serious waste of cooling capacity, and high energy consumption.

[0024] Existing refrigerators mostly use fixed power operation for deep cooling control, without dynamically adjusting based on the compressor's cumulative running time and the real-time temperature of the first compartment. This results in either insufficient cooling, failing to achieve the deep cooling preservation effect, or excessive cooling, causing energy waste. At the same time, due to the lack of a clear preset deep cooling range, the controller cannot adjust the operating status of each component according to the actual working conditions, making it difficult to achieve stable temperature control in deep cooling mode.

[0025] To address the aforementioned technical problems, this application provides an example of a refrigerator. Figures 1 to 4 The following are schematic structural diagrams illustrating one type of refrigerator provided in this application. Please refer to them. Figures 1 to 4 As shown, by way of example and not limitation, the refrigerator includes: The housing 100 includes a first chamber 1 and a second chamber 2 arranged adjacent to each other. The housing 100 is equipped with an air duct 3, an evaporator 300, a compressor (not shown in the figure), an air duct cover 30, a first fan 34, a second fan 12 and a semiconductor refrigeration module 200. The duct cover 30 is installed on the duct 3 and is used to control the connection between the duct 3 and the first chamber 1; The first fan 34 is used to transport the cooling capacity generated by the evaporator 300 to the first compartment 1 and the second compartment 2 through the air duct 3; The second fan 12 is installed in the first chamber 1 to enhance air disturbance in the first chamber 1; The semiconductor cooling module 200 is disposed between the first compartment 1 and the second compartment 2, and has a first output terminal and a second output terminal that can switch between cold and hot output; The second chamber 2 is equipped with a reflux channel 21 that connects to the space where the evaporator 300 is located; The controller (not shown in the figure) is connected to the duct cover 30, the first fan 34, the second fan 12, the semiconductor refrigeration module 200, and the compressor (not shown in the figure), and is configured as follows: In response to the deep-cooling mode switching command, the first chamber is controlled to operate in deep-cooling mode. In deep-cooling mode, the air duct cover is opened, the first fan delivers cold air to the first chamber, the first output terminal of the semiconductor refrigeration module releases cold energy toward the first chamber, and the second output terminal of the semiconductor refrigeration module releases heat toward the second chamber. Based on the compressor's cumulative running time and the real-time temperature of the first chamber, the compressor, semiconductor refrigeration module, and first fan are controlled to operate at the target speed so that the real-time temperature of the first chamber is maintained within the preset deep-cooling range.

[0026] In some embodiments, the refrigerator's cabinet structure includes a first compartment and a second compartment arranged vertically adjacent to each other. The first compartment is a functional switching compartment for defrosting and deep cooling, allowing switching between deep cooling and defrosting modes. The second compartment is a conventional freezer compartment. The first and second compartments are separated by a partition, enabling independent temperature control for each compartment and preventing mutual interference. The cabinet contains an air duct, evaporator, compressor, air duct cover, first fan, and semiconductor refrigeration module. The air duct cover is installed on the air duct within the cabinet, specifically positioned at the connection point between the air duct and the first compartment. It controls the connection between the air duct and the first compartment. When the first compartment is not switched to deep cooling mode, the air duct cover is closed, cutting off the connection between the air duct and the first compartment. When the first compartment is not switched to deep cooling mode, the air duct cover is open, ensuring that the cold air in the air duct can be smoothly delivered to the first compartment.

[0027] In some embodiments, a first fan is installed inside the air duct to directionally deliver the cold energy generated by the evaporator to the first and second compartments under the control of the controller, forming a complete air circulation loop in conjunction with the return channel. It should be understood that deep-freezing mode can be understood as an ultra-low temperature refrigeration function (e.g., -30°C to -40°C) far below conventional freezing temperatures (e.g., -18°C to -25°C, corresponding to the refrigeration temperature of a conventional freezer), which can quickly and deeply freeze food to lock in freshness. In deep-freezing mode, the first fan adjusts its speed according to the target setting determined by the controller, continuously delivering cold air to the first compartment to provide basic cooling for the first compartment, while also meeting the conventional freezing needs of the second compartment.

[0028] In some embodiments, the second fan is fixedly installed inside the first chamber and does not participate in the cold air delivery in the deep-cold mode. Instead, it is used to enhance the air disturbance in the first chamber, strengthen the heat exchange efficiency between the semiconductor refrigeration module and the air in the first chamber, so that the cold air can be evenly diffused into the first chamber, avoid local temperature unevenness in the first chamber, and ensure that the real-time temperature of the first chamber in the deep-cold mode can quickly and evenly reach the preset deep-cold range, thus ensuring the deep-cold preservation effect.

[0029] In some embodiments, the activation of the second fan forcibly disturbs the air inside the first compartment, forcing the descending cold air from the top to fully mix with the air at the bottom and sides, thus redistributing the cold energy accumulated at the bottom throughout the entire space of the first compartment. This forced convection makes the temperature fluctuations at any point in the first compartment more uniform, eliminating temperature dead zones caused by still or slow air diffusion, and ensuring that the storage surfaces in the first compartment under cryogenic mode receive a uniform low-temperature impact.

[0030] In some embodiments, the operation of the second fan forcibly disperses and mixes the heat generated at the hot end into the air throughout the first chamber, ensuring that the hot air evenly coats the surface of the food. This achieves hot air defrosting or uniform convection defrosting, preventing the loss of food juices and quality deterioration caused by localized overheating. Because the air is forcibly agitated, the temperature sensor in the first chamber detects the average temperature after uniform mixing, rather than localized extreme temperatures. This provides a more accurate feedback signal for controlling the start and stop of the semiconductor cooling module, thus improving the precision of temperature control.

[0031] In some embodiments, the semiconductor refrigeration module is installed on the intermediate partition between the first and second compartments, and has a first output terminal and a second output terminal facing the two compartments respectively. The semiconductor refrigeration module has a cold and hot output switching function, and the controller can switch the cold and hot states of the first and second output terminals according to different operating modes. In deep cooling mode, the controller controls the first output terminal of the semiconductor refrigeration module to release cold energy towards the first compartment to assist in deep cooling of the first compartment and accelerate the cooling rate of the first compartment; and also controls the second output terminal to release heat towards the second compartment, so as to fully recover and utilize the cold energy generated during the cooling process, and help the second compartment maintain the normal freezing temperature. There is no need for the compressor to be additionally loaded to cool the second compartment, realizing energy cascade utilization and reducing the overall energy consumption of the machine.

[0032] In some embodiments, the second compartment is equipped with a return channel, one end of which connects to the interior space of the second compartment, and the other end connects to the space where the evaporator is located, forming an air circulation system. In deep cooling mode, the return air from the first compartment and the return air from the second compartment merge through this return channel and enter the space where the evaporator is located. After reabsorbing the cooling capacity, the air is then transported to the first and second compartments by the first fan, improving the utilization rate of cooling capacity and the smoothness of air circulation, and maintaining the temperature stability in each compartment.

[0033] In some embodiments, the controller is electrically connected to the duct cover, the first fan, the second fan, the semiconductor refrigeration module, and the compressor, respectively, and can collect data such as the operating status of each component, the real-time temperature of the first compartment, and the cumulative running time of the compressor in real time, so as to ensure that both the deep cooling mode and the defrosting mode can operate stably.

[0034] In some embodiments, when the controller receives a user-triggered cryogenic mode switching command (such as clicking the cryogenic button, sending a command via remote control, etc.), it immediately responds to the command and controls the first chamber to switch to cryogenic mode, i.e., the first chamber is used as a cryogenic chamber. In cryogenic mode, the controller first controls the air duct cover to open, allowing the air duct to be unobstructed and connected to the first chamber; it controls the first fan to start, continuously delivering the cooling energy generated by the evaporator to the first chamber, providing basic cooling for the first chamber; it can also simultaneously control the semiconductor cooling module to start, adjusting the output state of the semiconductor cooling module so that the first output terminal of the semiconductor cooling module releases cooling energy towards the first chamber and the second output terminal releases heat towards the second chamber, forming a dual cooling synergy effect and accelerating the cooling speed of the first chamber.

[0035] In some embodiments, such as Figure 2 As shown (the arrows in the diagram indicate the airflow path), when the first chamber 1 serves as a cryogenic chamber, both the first damper 11 and the second damper 31 are open (i.e., the duct cover 30 is open to open the through-hole of the second damper 31; the first and second dampers open and close simultaneously). The first fan 34 in the duct 3 starts, supplying cooling energy to the first chamber 1. Simultaneously, the first output terminal 201 of the semiconductor cooling module 200 supplements the cooling energy into the first chamber 1, while the second output terminal 202, acting as the hot end, is located in the second chamber 2.

[0036] At this time, the first output terminal 201 of the semiconductor cooling module 200 replenishes the cooling capacity into the first compartment 1, causing the internal temperature of the first compartment 1 to quickly reach the deep cooling temperature. It can be seen that the temperature fluctuation of the first compartment 1 is reduced with the assistance of the semiconductor cooling module 200. Additionally, the heat output from the second output terminal 202 of the semiconductor chip module in the second compartment 2 is cooled by the cooling capacity output from the first damper 11. The cooling capacity output into the first compartment 1 flows through the first damper 11 into the second compartment 2, and then returns to the evaporator 300 in the refrigerator through the return channel 21 within the second compartment 2, thus forming a cycle.

[0037] When the first chamber 1 is used as a cryogenic chamber, i.e., the first chamber is continuously operating in cryogenic mode, the controller continuously monitors the cumulative running time of the compressor and collects the real-time temperature through the temperature sensor in the first chamber. This allows the controller to understand whether the current cooling progress meets the preset timing requirements, the difference between the real-time temperature and the preset cryogenic range, the stability of the temperature drop, and the temperature drop rate per unit time by continuously collecting real-time temperature data. This helps to determine whether the cooling efficiency meets the standard. Based on the cumulative running time and the real-time temperature of the first chamber, the controller can determine the target speed of the compressor, the semiconductor refrigeration module, and the first fan to ensure that the operating intensity of each component is adapted to the current cooling demand. This avoids both insufficient cooling leading to cooling lag and excessive cooling causing energy waste.

[0038] Subsequently, the controller adjusts the compressor speed, the output power of the semiconductor refrigeration module, and the speed of the first fan to control the compressor, semiconductor refrigeration module, and first fan to operate at the target level. This allows for accurate control of the cooling intensity of the first compartment, ultimately maintaining the real-time temperature of the first compartment within the preset deep-cold range (e.g., -30℃ to -40℃). This meets the deep-cold storage needs of any food, especially high-end food, while also ensuring the stability of the refrigerator's overall operation and reasonable energy consumption.

[0039] Compared with the prior art, the refrigerator provided in this application embodiment achieves physical integration of functions and energy recycling by arranging the hot and cold ends (first output end 201 and second output end 202) of the semiconductor refrigeration module in two adjacent compartments (first compartment 1 and second compartment 2) and cooperating with the opening and closing control of the first damper 11 and the second damper 31.

[0040] The first compartment is no longer a single-function freezer or defrost compartment, but can freely switch between deep-freeze and defrost modes, meeting users' needs for integrated food storage and pre-processing. Regardless of whether the first compartment is in deep-freeze or defrost mode, the refrigerator maintains a temperature balance. In deep-freeze mode, the cold end accelerates freezing in the first compartment, while the heat from the hot end is neutralized by the cooling energy delivered to the second compartment via the opened first air vent. In defrost mode, the hot end heats the first compartment to achieve defrosting, while the cooling energy output from the cold end is used to cool the second compartment. This design couples two originally independent functions through a semiconductor refrigeration module, creating a tiered utilization of energy.

[0041] Still Figure 2As shown, when the first chamber 1 is used as a cryogenic chamber, a dual-mode cooling system is employed, combining duct 3 cooling (with the cooling capacity of a conventional evaporator 300) and semiconductor refrigeration module 200 as auxiliary cooling. The first output terminal 201 of the semiconductor refrigeration module 200 directly compensates for cooling capacity within the first chamber 1, effectively adding a secondary cooling source to the traditional cooling system. Due to the direct intervention of the semiconductor refrigeration module 200, the temperature can be rapidly lowered, shortening the time required to reach cryogenic temperatures. Furthermore, the cooling output of the semiconductor refrigeration module 200 can compensate for localized temperature differences that are difficult to cover with air cooling, reducing temperature fluctuations within the first chamber 1 and exceeding the lower limit of the cooling capacity of a single evaporator 300, achieving even lower cryogenic temperature zones.

[0042] Still Figure 1 , Figure 2 , Figure 3 As shown, the height of the first chamber 1 is higher than that of the second chamber 2. The first fan is installed at the air inlet 33 of the air duct, at the same height as the first chamber. By placing the first fan at the air inlet of the air duct and at the same height as the first chamber, the first fan can directly extract cold air from the evaporator area and preferentially supply it to the higher-positioned first chamber. This facilitates the rapid filling of the entire first chamber with cold air, effectively improving heat exchange efficiency and accelerating the attainment of cryogenic temperatures.

[0043] In some embodiments, the controller performs control of the first compartment to operate in cryogenic mode, and is configured to: Control the compressor, semiconductor refrigeration module, and first fan to run at the initial speed, and start recording the cumulative running time of the compressor; The controller, based on the refrigerator's compressor's cumulative operating time and the real-time temperature of the first compartment, controls the compressor, semiconductor refrigeration module, and first fan to operate at the target speed, and is configured as follows: Obtain multiple preset runtimes and the target temperature corresponding to each preset runtime; If the cumulative running time reaches any preset running time, the corresponding target level is determined based on the relationship between the target temperature corresponding to the preset running time and the real-time temperature of the first room. Control the compressor, semiconductor refrigeration module, and first fan to operate at the target speed.

[0044] In some embodiments, after the cryogenic mode is activated and the airflow and semiconductor refrigeration module are configured, the controller directly controls the compressor, semiconductor refrigeration module, and first fan to operate at a preset initial setting (setting 1): the compressor operates stably at 4800 rpm, the semiconductor refrigeration module outputs cooling capacity at half power, and the first fan delivers cold air at 800 rpm. This initial setting balances startup stability with basic cooling requirements, enabling the stable establishment of a low-temperature environment in the first compartment. Furthermore, the controller's internal timing unit starts synchronously, continuously accumulating and recording the compressor's operating time, providing a timing reference for subsequent phased and leveled control, ensuring the cryogenic process is traceable and controllable.

[0045] In some embodiments, the controller pre-stores multiple preset runtimes (e.g., 40 minutes, 100 minutes, 200 minutes, 250 minutes), each preset runtime is matched with a corresponding target temperature (e.g., -20°C, -25°C, -30°C). Different preset runtimes and target temperatures work together to achieve a stepped temperature control strategy in which the first room is in deep-cold mode.

[0046] During the operation of the deep cooling mode, the controller compares the current cumulative running time of the compressor with each preset running time in real time. When the cumulative running time reaches any preset running time, the target temperature corresponding to the preset running time is retrieved and compared with the current real-time temperature of the first compartment.

[0047] Based on the relationship between the real-time temperature of the first chamber and the target temperature corresponding to the preset running time, the controller comprehensively evaluates the current cooling rate and cooling load, and then determines the target level that is suitable for the current operating conditions. It can then adjust the speed of the compressor, the output power of the semiconductor refrigeration module, and the speed of the first fan, so that the three can work together to switch to the target level.

[0048] By using the above-mentioned graded control method, the cooling intensity of the first compartment in deep-cold mode can be gradually increased. This ensures that the first compartment quickly approaches the deep-cold temperature and avoids energy consumption and reliability issues caused by the refrigerator's refrigeration components operating at full load for a long time. This makes the operation of deep-cold mode more stable and the temperature control more precise.

[0049] In some embodiments, multiple preset running durations include a first preset duration, a second preset duration, a third preset duration, and a fourth preset duration; the target temperature includes a first temperature, a second temperature, and a third temperature, wherein the first preset duration corresponds to the first temperature, the second preset duration corresponds to the second temperature, and both the third and fourth preset durations correspond to the third temperature; if the controller executes and the accumulated running duration reaches any one of the preset running durations, it determines the corresponding target level based on the relationship between the target temperature corresponding to the preset running duration and the real-time temperature of the first room, and configures it as follows: If the cumulative running time reaches the first preset time, the corresponding target level is determined based on the relationship between the real-time temperature of the first room and the first temperature. If the cumulative running time reaches the second preset time, the corresponding target level is determined based on the relationship between the real-time temperature of the first room and the second temperature, wherein the first preset time is less than the second preset time and the first temperature is greater than the second temperature. If the cumulative running time reaches the third preset time, the corresponding target level is determined based on the relationship between the real-time temperature of the first room and the third temperature, wherein the second preset time is less than the third preset time and the second temperature is greater than the third temperature. If the cumulative running time reaches the fourth preset time, the corresponding target level is determined based on the relationship between the real-time temperature of the first room and the third temperature, wherein the third preset time is less than the fourth preset time.

[0050] In this embodiment, when the compressor's cumulative running time reaches a first preset duration (e.g., 40 minutes), the controller executes control logic based on the relationship between the real-time temperature of the first compartment and a first temperature (e.g., -20°C) to determine the target speed. The specific operating parameters for each speed are predetermined to ensure accurate and practical temperature control. For example, the initial speed (speed 1) can be set to a compressor speed of 4800 rpm, half-power output of the semiconductor refrigeration module, and a first fan speed of 800 rpm. Similarly, the second speed (speed 2) can be set to a compressor speed of 4800 rpm, full-power output of the semiconductor refrigeration module, and a first fan speed of 1000 rpm. The overall operating parameters of the second speed are higher than those of the initial speed, resulting in a significant increase in cooling intensity.

[0051] In some embodiments, when the deep cooling mode has been running for a cumulative period of 40 minutes, the controller collects the real-time temperature through the temperature sensor in the first room and compares the real-time temperature with the first temperature -20°C.

[0052] If the real-time temperature of the first chamber is detected to be below -20℃, it means that the cooling intensity of the current initial setting has met the initial requirements of cryogenic cooling and the cooling progress has reached the target. The controller then determines the target setting as the initial setting and controls the compressor, semiconductor refrigeration module, and first fan to continue operating at the initial setting to avoid energy waste caused by blindly increasing the setting.

[0053] If the real-time temperature of the first chamber is detected to be no lower than -20℃, it indicates that the cooling intensity of the initial setting is insufficient and cannot achieve the expected cooling effect within the preset time sequence. The controller then determines the target setting as the second setting and controls the compressor, semiconductor refrigeration module, and first fan to switch to the second setting. By switching the semiconductor refrigeration module to full power and increasing the speed of the first fan to 1000rpm, the cooling output is enhanced, driving the temperature in the first chamber to drop rapidly and ensuring that the deep cooling process proceeds as expected.

[0054] In this embodiment, when the compressor's cumulative running time reaches the second preset time (e.g., 100 minutes), the controller executes control logic based on the relationship between the real-time temperature of the first compartment and the second temperature (e.g., -25°C) to determine the target gear. The operating parameters of the third gear (gear 3) are higher than those of the second gear. For example, the third gear can be set to a compressor speed of 5100 rpm, full power output of the semiconductor refrigeration module, and a first fan speed of 1200 rpm to further enhance the cooling intensity and adapt to the cooling demand or temperature control requirements during the middle of the deep cold mode operation.

[0055] In some embodiments, when the deep cooling mode has been running for 100 minutes, the controller collects the real-time temperature of the first chamber again, compares the real-time temperature of the first chamber with the second temperature of -25°C, and determines the target level for the next step based on the current operating level.

[0056] If the real-time temperature of the first chamber is detected to be no lower than -25℃, it means that the cooling intensity of the current operating level (which is either the initial level or the second level at this time) still does not meet the temperature control requirements in the middle of the deep cooling mode operation, and cannot achieve a continuous temperature drop to a deeper cooling range. The controller then determines the target level as the third level and controls the compressor, semiconductor refrigeration module, and first fan to switch to the third level operation simultaneously. For example, the cooling effect of the first chamber can be further enhanced and the temperature drop rate can be accelerated by increasing the speed of the compressor to 5100 rpm and the speed of the first fan to 1200 rpm.

[0057] If the real-time temperature of the first chamber is detected to be below -25℃, it indicates that the cooling intensity of the current operating level is sufficient to meet the temperature control requirements during the mid-term operation of the deep cooling mode, and the cooling progress is in line with expectations. The controller then determines the target level as the current operating level and controls the compressor, semiconductor refrigeration module, and first fan to continue operating at the current operating level to avoid increased energy consumption and component wear due to over-cooling.

[0058] In some embodiments, when the cumulative running time of the compressor reaches the third preset time (e.g., 200 minutes) and the fourth preset time (e.g., 250 minutes), the controller determines the target gear and controls the operation of the compressor, the semiconductor refrigeration module, the first fan and other components based on the relationship between the real-time temperature of the first chamber and the third temperature (e.g., -30°C). It should be understood that the fourth gear (gear 4) is the highest operating gear, that is, the maximum cooling intensity gear in the deep cooling mode. For example, the fourth gear can be set to the compressor speed of 5400 rpm, the semiconductor refrigeration module at full power output, and the first fan speed of 1500 rpm.

[0059] In some embodiments, when the compressor's cumulative running time reaches a third preset duration of 200 minutes, the controller collects the real-time temperature of the first chamber and compares it with the third temperature of -30°C to determine the corresponding target setting. If the real-time temperature of the first chamber is detected to be not lower than -30°C, it indicates that the cooling intensity of the current operating setting (initial setting, second setting, or third setting) is still insufficient to reach the deep-cold target temperature. The controller then determines the target setting as the fourth setting and controls the compressor, semiconductor refrigeration module, first fan, and other components to simultaneously switch to the highest setting to drive the temperature of the first chamber down to below -30°C with maximum cooling intensity, entering the preset deep-cold range (-30°C to -40°C). If the real-time temperature of the first chamber is detected to be lower than -30°C, it indicates that the cooling intensity of the current operating setting can meet the deep-cold requirement, and the real-time temperature of the first chamber has entered the preset deep-cold range. The controller then determines the target setting as the current operating setting and controls the compressor, semiconductor refrigeration module, first fan, and other components to maintain the current setting to ensure a stable temperature drop and avoid energy waste.

[0060] In some embodiments, when the compressor's cumulative running time reaches a fourth preset duration of 250 minutes, the controller continues to compare the real-time temperature of the first compartment with the third temperature of -30°C to determine whether it is currently operating at the fourth (highest) setting. If the real-time temperature of the first compartment is detected to be no lower than -30°C, and all components such as the compressor, semiconductor refrigeration module, and first fan are already operating at the fourth setting, it indicates that even operating at maximum cooling intensity, the preset deep-cold temperature requirement cannot be achieved, and the refrigerator is malfunctioning. The controller immediately triggers an alarm output to remind the user to check the refrigerator's equipment status or the placement of food, ensuring safe use and equipment reliability.

[0061] If the real-time temperature of the first chamber is detected to be below -30℃, it means that the current highest cooling level has met the standard and the real-time temperature of the first chamber has entered the preset deep cooling range. The controller then determines the target level as the fourth level and controls the compressor, semiconductor refrigeration module, first fan and other components to maintain the highest level operation to continuously ensure the deep cooling effect, so that the real-time temperature in the first chamber can be stably maintained between -30℃ and -40℃.

[0062] In this embodiment, the cooling intensity of the initial, second, third, and fourth gears increases progressively, which not only achieves step-by-step temperature control during the deep-cold mode operation, but also ensures that the cooling effect of the first compartment of the refrigerator in deep-cold mode meets the standard and the energy consumption is reasonable through dual determination of temperature and time sequence, which is especially suitable for the deep-cold storage needs of high-end food.

[0063] In some embodiments, the controller is also configured to: When the real-time temperature of the first chamber is not lower than the third temperature, the compressor and semiconductor refrigeration module are controlled to run continuously. When the real-time temperature of the first chamber is lower than the third temperature, the compressor and semiconductor refrigeration module are controlled to continue running until the real-time temperature of the first chamber drops to the fourth temperature and then stops running. When the real-time temperature of the first chamber rises back to the third temperature, the compressor and semiconductor refrigeration module are restarted to maintain the real-time temperature of the first chamber within the preset deep-cold range.

[0064] In some embodiments, the third temperature and the fourth temperature jointly define a preset cryogenic range for the first compartment. The fourth temperature is lower than the third temperature; for example, but not limited to, the third temperature is -30°C, serving as the upper limit / maximum value of the preset cryogenic range, and the fourth temperature is -40°C, serving as the lower limit / minimum value of the preset cryogenic range. The controller ensures that the real-time temperature of the first compartment is stably maintained within the range of [-40°C, -30°C] by controlling the operating speed / operating status of the compressor, the semiconductor refrigeration module, and the duct fan.

[0065] During cryogenic mode operation, the controller continuously monitors the real-time temperature of the first chamber and controls the operation of the compressor and semiconductor refrigeration module based on the relationship between the real-time temperature and the third temperature (e.g., -30°C). When the real-time temperature of the first chamber is detected to be no lower than the third temperature of -30°C, it indicates that the current temperature has not yet entered the preset cryogenic range or is near the upper limit of the preset cryogenic range. Continuous cooling is required to maintain the cryogenic effect. The controller then controls the compressor and semiconductor refrigeration module to continue operating, ensuring continuous output of cooling capacity and driving the temperature to decrease steadily or remain within the preset cryogenic range.

[0066] When the real-time temperature of the first chamber is detected to be lower than the third temperature of -30°C, the controller does not immediately stop the compressor and the semiconductor refrigeration module from running. Instead, it continues to control them to run until the real-time temperature of the first chamber drops to the fourth temperature (e.g., -40°C). Only then will the controller stop the compressor and the semiconductor refrigeration module from running, in order to avoid unstable deep cooling effect due to excessively rapid temperature fluctuations.

[0067] After the compressor and semiconductor refrigeration module stop operating, the controller continues to monitor the real-time temperature of the first compartment. When the real-time temperature of the first compartment rises to the third temperature of -30°C, it indicates that the current temperature has exceeded the reasonable range of the preset deep-cold range. The compressor, the first fan, and the semiconductor refrigeration module can be restarted to replenish the cooling capacity. The controller then immediately restarts the compressor and the semiconductor refrigeration module to resume refrigeration operation. This ensures that the real-time temperature of the first compartment is stably maintained within the preset deep-cold range, such as -30°C to -40°C, thus guaranteeing the deep-cold preservation effect of high-end food and avoiding energy waste and component wear caused by frequent start-stop of refrigeration components.

[0068] In some embodiments, the controller is also configured to: During the deep cooling mode operation of the first compartment, in response to the door opening operation of the first compartment, the compressor and semiconductor refrigeration module are kept running, and the first fan is stopped. In response to the door closing operation of the first room, the first fan is restarted and resumed to the operating position before the door opening operation.

[0069] In some embodiments, to address the door opening condition during deep-freeze mode operation and prevent excessive cold energy from diffusing outwards and affecting the deep-freeze effect, this application embodiment also provides linkage control logic corresponding to door opening and closing, realizing cold energy management in deep-freeze mode, taking into account both preservation effect and energy consumption control.

[0070] During the refrigerator's deep-freeze mode operation, the controller monitors the opening and closing status of the refrigerator door corresponding to the first compartment (defrosting compartment / deep-freeze compartment) in real time. When it receives an opening operation signal for the first compartment, the controller controls the compressor and semiconductor refrigeration module to maintain normal operation and continuously generate cooling capacity. This prevents the temperature of the first compartment from rising rapidly due to shutdown, ensuring that the deep-freeze effect is uninterrupted. The controller also controls the first fan to stop running, cutting off the cold air delivery path and preventing the low-temperature cold air in the first compartment from diffusing outwards in large quantities through the open door. This reduces cooling capacity loss and avoids excessive compressor overload and large temperature fluctuations inside the refrigerator caused by cold energy leakage.

[0071] When the controller receives the door closing signal for the first compartment, it indicates that the door of the first compartment is now closed, eliminating the risk of cold air diffusion. The controller then restarts the first fan and restores it to the operating speed before the door opening operation. This ensures that the speed of the first fan matches the current cooling demand of the deep-cold mode, quickly restores the delivery of cold air, and stabilizes the internal temperature of the first compartment within the preset deep-cold range as soon as possible. This ensures the continuous and stable operation of the deep-cold mode, which not only avoids the waste of cold air but also ensures the deep-cold preservation quality of high-end ingredients.

[0072] In some embodiments, the controller is also configured to: When the real-time temperature of the second chamber rises back to the fifth temperature, the compressor and the first fan are kept running, and the semiconductor refrigeration module is stopped. When the real-time temperature of the second chamber drops to the sixth temperature, the compressor, the first fan, and the semiconductor refrigeration module are controlled to resume operation before the real-time temperature rises. The fifth temperature is greater than the sixth temperature. The fifth and sixth temperatures together define the preset cooling range of the second chamber, and all temperature values ​​within the preset cooling range of the second chamber are higher than all temperature values ​​within the preset cryogenic range.

[0073] In some embodiments, to address the issue of temperature rise in the second compartment (conventional freezer compartment) during deep-freeze mode operation, and to prevent abnormal temperature rise in the second compartment from affecting the conventional freezing function, while balancing overall energy consumption and operational stability, this application also provides temperature linkage control logic for the second compartment.

[0074] In some embodiments, the fifth temperature is greater than the sixth temperature, and the two together define the preset cooling range of the second compartment. All temperature values ​​within this preset cooling range are higher than the preset cryogenic range of the first compartment (e.g., -30°C to -40°C). While the first compartment is operating in cryogenic mode, the controller monitors the real-time temperature of the second compartment and dynamically adjusts the operating status of components such as the compressor, the first fan, and the semiconductor refrigeration module to ensure that the real-time temperature in the second compartment remains stable within the preset cooling range.

[0075] When the real-time temperature of the second compartment rises to the fifth temperature, it indicates that the temperature inside the second compartment has exceeded the upper limit of the preset cooling range, and the cooling demand has increased. Therefore, the controller can control the compressor and the first fan to maintain normal operation and continuously deliver cooling capacity to the second compartment, ensuring that the normal refrigeration function of the second compartment is not affected. In addition, the controller can also control the semiconductor refrigeration module to stop operating, to prevent the second output terminal of the semiconductor refrigeration module from continuously releasing heat and raising the temperature inside the second compartment, thereby relieving the cooling load of the second compartment and allowing the temperature inside the second compartment to drop quickly.

[0076] When the controller detects that the real-time temperature of the second compartment has dropped to the sixth temperature, it indicates that the temperature inside the second compartment has returned to the preset cooling range, the cooling load has been relieved, and the controller can then control the compressor, the first fan, and the semiconductor refrigeration module to return to the operating state before the temperature of the second compartment rose. This ensures that the deep-cooling mode of the first compartment is not affected, maintains the normal freezing effect of the second compartment, and achieves coordinated and stable operation of the first compartment in deep-cooling mode and the second compartment in normal freezing mode. This not only ensures that the functions of each compartment meet the standards, but also optimizes the overall energy consumption and operational reliability of the refrigerator.

[0077] In some embodiments, the controller is also configured to: In response to the refrigerator performing a defrost operation, the compressor, the first fan, and the semiconductor refrigeration module are all stopped. In response to the end of the defrosting operation, the control compressor, the first fan, and the semiconductor refrigeration module resume their operating states before the defrosting operation began; among them, the defrosting operation has the highest priority.

[0078] In some embodiments, in order to ensure normal heat exchange of the refrigerator evaporator and avoid the defrosting process from affecting the overall stability of the machine, this application embodiment also provides defrosting operation linkage control logic, which clarifies the priority of defrosting operation and the corresponding component control strategy. It should be understood that the control logic of defrosting operation has the highest priority, which is higher than all operation control logics such as constant temperature control, door opening control, and second room temperature rise control in deep cooling mode.

[0079] During refrigerator operation, when the controller receives a defrost command from the evaporator, indicating that the refrigerator is performing a defrost operation, regardless of the refrigerator's current operating state in deep cooling mode (including whether the compressor, first fan, and semiconductor refrigeration module are running or stopped), the controller immediately executes the corresponding component control logic for defrosting, controlling the compressor, first fan, and semiconductor refrigeration module to all stop operating. Furthermore, during defrosting, this prevents interference between the continuous operation of various refrigeration components and the evaporator's heating and defrosting process, avoids the heat generated during defrosting canceling out the cold generated by the refrigeration components, prevents a decrease in defrosting efficiency, reduces ineffective energy consumption, and also limits excessive temperature fluctuations in the second compartment during defrosting, especially preventing the temperature in the second compartment from rising too high, thus ensuring the storage quality of food in the second compartment.

[0080] When the controller detects that the defrosting operation has ended, meaning the evaporator defrosts and the temperature has returned to the normal heat exchange range, the controller responds to the defrosting end signal and controls the compressor, the first fan, and the semiconductor refrigeration module to all return to their operating states before the defrosting operation began. For example, if the refrigerator was operating at a certain setting in deep cooling mode before the defrosting operation, it will return to that setting; if some components were in a stopped state before the defrosting operation, they will return to the corresponding stopped state. This ensures a seamless transition between deep cooling mode and the regular freezing function of the second compartment, preventing the defrosting process from having an excessive impact on the temperature of each compartment, ensuring the continuity and stability of the refrigerator's overall operation, and balancing the defrosting effect with the functionality of each compartment meeting standards.

[0081] In some embodiments, the controller is also configured to: In response to the defrosting mode switching command, the first chamber is controlled to operate in defrosting mode. In defrosting mode, the air duct cover is closed, the first fan only delivers cold air to the second chamber, the first output end releases heat towards the first chamber, and the second output end releases cold energy towards the second chamber.

[0082] Based on the real-time temperature of the first chamber and the set temperature of the defrosting mode, the start and stop of the semiconductor cooling module and the second fan are controlled so that the real-time temperature of the first chamber is maintained within the preset defrosting range.

[0083] In some embodiments, and in the embodiments of this application, the first chamber can also be switched to be used as a thawing chamber based on the user's need for gentle thawing of food, that is, to run the thawing mode. This is especially suitable for application scenarios such as meat and aquatic products that need to be thawed evenly and slowly to retain the juice and freshness of the food, avoiding the problems of food spoilage, poor taste and nutrient loss caused by high temperature rapid thawing in related technologies.

[0084] During refrigerator operation, when the controller receives a defrost mode switching command, such as when the user manually selects the defrost function through the interactive interface or when the defrost program is automatically triggered according to the type of food, it controls the first compartment to switch from deep freezing mode to defrost mode, that is, the first compartment is switched from being a deep freezing compartment to being a defrost compartment.

[0085] When the first compartment is used as the defrosting chamber, i.e., in defrosting mode, the duct cover is closed, cutting off the airflow connection between the duct and the first compartment. This creates a relatively independent temperature-controlled space in the first compartment, preventing cold air from entering and causing insufficient or uneven defrosting. At this time, the first fan continues to operate, but only directs the cold air generated by the evaporator to the second compartment, maintaining a stable normal freezing temperature in the second compartment and ensuring that other frozen foods are not affected by the defrosting process. The semiconductor refrigeration module releases heat to the first compartment through its first output and cold air to the second compartment through its second output. Utilizing the thermoelectric conversion principle, it provides a controllable heat source to the first compartment and discharges the cold air generated during heating to the second compartment, achieving complementary use of hot and cold energy. This effectively offsets the impact of residual heat generated during defrosting on the entire system, eliminating the need for frequent compressor overload operation, reducing the overall heat load and compressor start-stop frequency, and achieving precise temperature control, lower energy consumption, and more stable operation during the defrosting process.

[0086] During continuous operation in defrosting mode in the first chamber, the controller collects the real-time temperature of the first chamber through a temperature sensor and compares it with the set temperature for defrosting mode. Based on the temperature difference, it dynamically controls the start / stop status of the semiconductor refrigeration module and the operation and stop of the second fan. Furthermore, by controlling the operation of the second fan, the controller can agitate the air in the first chamber, ensuring that the heat generated by the heating element is evenly distributed throughout the entire space, preventing localized overheating or underheating. The controller achieves closed-loop temperature control through start / stop regulation, maintaining the real-time temperature of the first chamber stably within the preset defrosting range. This ensures both defrosting efficiency and allows the food to defrost slowly within a suitable temperature range close to freezing point, maximizing its edible quality.

[0087] When the first chamber 1 is used as the thawing chamber, such as Figure 3 As shown (the arrows in the diagram indicate the airflow path), both the first damper 11 and the second damper 31 are closed (i.e., the duct cover 30 is closed to cover the through-hole of the second damper 31). The first fan 34 drives the cooling capacity in the lower duct 3 to be transported only from the air outlet 32 ​​into the second compartment 2. The first output terminal 201 of the semiconductor cooling module 200 provides heating to the first compartment 1, and the second output terminal 202 provides cooling to the second compartment 2. At this time, the heat in the first compartment 1 is entirely generated by the first output terminal 201 of the semiconductor cooling module 200, and the internal temperature of the first compartment 1 can be controlled by controlling the on / off state of the semiconductor cooling module 200. In addition, the second output terminal 202 of the semiconductor cooling module 200 supplements the cooling capacity of the second compartment 2, which can reduce the starting frequency of the compressor in the refrigerator and save energy.

[0088] like Figure 3As shown, when the first compartment 1 is used as the defrosting chamber, a thermoelectric separation design is adopted for hot-end defrosting and cold-end compensation. The heat of the first compartment 1 is entirely provided independently by the first output terminal 201 (hot end) of the semiconductor refrigeration module 200. The defrosting temperature can be precisely adjusted by controlling the start and stop of the semiconductor refrigeration module 200, avoiding the drawbacks of traditional heating tubes having large thermal inertia and difficult temperature control. In addition, traditional defrosting simply generates heat, which leads to heat entering the refrigerator and increasing the compressor load. In the refrigerator of this embodiment, while the semiconductor refrigeration module 200 generates heat at the first output terminal 201, the second output terminal 202 simultaneously generates cold energy in the second compartment 2. This part of the cold energy directly supplements the cooling capacity required by the second compartment 2, offsetting the heat load caused to the system by the defrosting process, thereby reducing the compressor start frequency and helping to reduce the overall energy consumption of the machine.

[0089] As can be seen, the refrigerator provided in this application embodiment can have both rapid deep freezing and intelligent defrosting functions. While improving the accuracy and uniformity of temperature control, it optimizes energy consumption through the coordinated management of cold and heat, thereby meeting the higher requirements of modern families for the whole-cycle preservation of food.

[0090] In some embodiments, the preset defrosting range refers to a temperature control range (unit: °C) preset when the first chamber operates in defrosting mode, in order to achieve gentle and slow defrosting of food while balancing defrosting efficiency and food quality. This preset defrosting range has a lower limit of the set temperature of the defrosting mode and an upper limit of the set temperature plus a preset temperature difference. The controller is configured to control the first chamber to operate in defrosting mode as follows: The semiconductor cooling module is controlled to operate at full power, the second fan is controlled to operate at a preset speed, and the real-time temperature of the first chamber is detected at a first preset cycle. The controller, based on the real-time temperature of the first compartment and the set temperature of the defrosting mode, controls the start and stop of the semiconductor refrigeration module and the second fan, and is configured as follows: If the real-time temperature of the first chamber is not higher than the set temperature within the first preset cycle, the semiconductor cooling module and the second fan will remain in operation. If the real-time temperature of the first room is higher than the set temperature within the first preset period, the real-time temperature of the first room will be detected within the second preset period. If the real-time temperature of the first chamber is not higher than the set temperature plus the preset temperature difference within the second preset cycle, the semiconductor cooling module and the second fan will remain in operation. If the real-time temperature of the first chamber is higher than the set temperature plus the preset temperature difference within the second preset cycle, the control semiconductor cooling module and the second fan will stop operating.

[0091] In some embodiments, when the first chamber is used as a defrosting chamber, i.e., in defrosting mode, the controller executes targeted operational control logic to ensure a gentle and uniform defrosting process and precise control of the defrosting temperature. In specific applications, the controller can control the semiconductor refrigeration module to operate at full power. The first output terminal 201 (hot end) of the semiconductor refrigeration module 200 releases heat towards the first chamber (defrosting chamber), providing a stable heat source for the defrosting process. The controller also controls the second fan to operate at a preset speed, which can be set to 800 rpm, to enhance air turbulence within the first chamber, strengthen heat exchange, and ensure that heat is evenly distributed throughout the first chamber, preventing localized over-defrosting and undefrosted areas. During this process, the controller continuously monitors the real-time temperature of the first chamber at a first preset cycle to understand the defrosting progress and provide a basis for subsequent start / stop control.

[0092] In some embodiments, the duration of the first preset cycle should take into account both detection accuracy and energy consumption control, and can be set to 3-8 minutes, for example, 5 minutes.

[0093] In some embodiments, during the operation of the first chamber as a defrosting chamber in defrosting mode, the controller dynamically controls the start / stop status of the semiconductor refrigeration module and the second fan based on the real-time temperature of the first chamber and the set temperature of the defrosting mode. This achieves precise closed-loop control of the defrosting temperature, ensuring that the food in the first chamber defrosts slowly within a suitable temperature range. For example, within a first preset period (e.g., 5 minutes), the controller collects the real-time temperature of the first chamber and compares it with the set temperature. If the real-time temperature of the first chamber is not higher than the set temperature, it indicates that the current defrosting progress has not met the standard and the heat supply is insufficient. The controller then maintains the current operating status of the semiconductor refrigeration module and the second fan to continuously provide heat to the first chamber, thus driving the defrosting process forward.

[0094] If the real-time temperature of the first chamber is detected to be higher than the set temperature within the first preset period, it indicates that the current heat supply is too high and there is a risk of local overheating. The controller then switches the temperature detection period to continuously detect the real-time temperature of the first chamber in the second preset period. In some embodiments, the setting duration of the second preset period should take into account the sensitivity of temperature control. It can be set to 1-3 minutes, but is not limited to 1 minute. For example, it can be set to 1 minute, which shortens the detection interval and improves the sensitivity of temperature control compared to the first preset period.

[0095] In some embodiments, within a second preset period, the controller continues to compare the real-time temperature T1 of the first compartment with the set temperature T0 + preset temperature difference T2. For example, if the preset temperature difference T2 is set to 2°C, the controller compares the real-time temperature T1 with (set temperature T0 + 2°C). If the real-time temperature T1 of the first compartment is detected to be no higher than (set temperature T0 + preset temperature difference T2) within the second preset period, it indicates that although the current temperature is higher than the set temperature, it is within a reasonable range and will not affect the thawing quality of the food. The controller then maintains the operation of the semiconductor refrigeration module and the second fan to continuously maintain the heat supply.

[0096] If the real-time temperature T1 of the first chamber is detected to be higher than the set temperature T0 + preset temperature difference T2 within the second preset cycle, it indicates that the current heat supply is too high and the temperature in the first chamber is too high. Continuing to run will cause the food to spoil and lose juice. At this time, the controller will immediately control the semiconductor cooling module and the second fan to stop running and stop the heat supply. After the temperature in the first chamber drops back to a reasonable range, the temperature detection and operation control process will be restarted. This ensures that the temperature of the first chamber is stably maintained within the preset defrosting range of the set temperature to the set temperature + preset temperature difference, taking into account both defrosting efficiency and food quality.

[0097] Compared to existing technologies where the cryogenic compartment and defrost compartment are set up independently, resulting in wasted space inside the refrigerator, this application achieves the switching between cryogenic storage and gentle defrosting functions through a single first compartment. There is no need to set up separate cryogenic and defrost compartments, which can improve the utilization rate of the refrigerator's internal space and meet users' dual needs for cryogenic preservation and gentle defrosting of food.

[0098] In summary, the embodiments of this application achieve the dual requirements of deep-freezing preservation and gentle thawing through the coordinated control of various components, which not only improves the food preservation effect but also reduces energy consumption, solving the technical problems of single function, low energy utilization and insufficient temperature control accuracy of refrigerators in the prior art.

[0099] It should be noted that in this embodiment, the first compartment is no longer a single-function freezer or defrost compartment, but can freely switch between deep-freeze and defrost modes, meeting the user's need for integrated food storage and pre-processing. Regardless of whether the first compartment is in deep-freeze or defrost mode, the refrigerator can achieve a temperature balance. In deep-freeze mode, the first output accelerates the freezing effect in the first compartment, while the heat from the second output is neutralized by the cold air delivered to the second compartment by the opened first damper. In defrost mode, the first output heats the first compartment to achieve defrosting, while the cold air output from the second output can be used for cooling the second compartment. This design couples two originally independent functions through a semiconductor refrigeration module, forming a tiered utilization of energy.

[0100] The refrigerator described in this application has the dual functions of rapid deep freezing and intelligent defrosting. While improving the accuracy and uniformity of temperature control, it optimizes energy consumption through the coordinated management of cold and heat, thereby meeting the higher requirements of modern families for the whole-cycle preservation of food.

[0101] This application embodiment also provides a refrigerator control method. The refrigerator includes: a cabinet containing a first compartment and a second compartment arranged adjacent to each other; the cabinet contains an air duct, an evaporator, a compressor, an air duct cover, a first fan, a second fan, and a semiconductor refrigeration module; the air duct cover is disposed on the air duct and is used to control the connection and disconnection between the air duct and the first compartment; the first fan is used to transport the cooling energy generated by the evaporator to the first compartment and the second compartment through the air duct; the second fan is disposed in the first compartment and is used to enhance air turbulence in the first compartment; the semiconductor refrigeration module is disposed between the first compartment and the second compartment and has a first output terminal and a second output terminal that can switch between hot and cold output; the second compartment has a return channel communicating with the space where the evaporator is located; Figure 5 As shown, the control method includes: S501, in response to the cryogenic mode switching command, controls the first compartment to operate in cryogenic mode.

[0102] In the deep cooling mode, the air duct cover is opened, the first fan delivers cold air to the first chamber, the first output end of the semiconductor cooling module releases cold energy toward the first chamber, and the second output end of the semiconductor cooling module releases heat toward the second chamber.

[0103] S502 controls the compressor, semiconductor refrigeration module, and first fan to operate at the target speed based on the compressor's cumulative running time and the real-time temperature of the first chamber, so as to maintain the real-time temperature of the first chamber within the preset deep-cooling range.

[0104] In some embodiments, the refrigerator's cabinet structure includes a first compartment and a second compartment arranged vertically adjacent to each other. The first compartment is a functional switching compartment for defrosting and deep cooling, allowing switching between deep cooling and defrosting modes. The second compartment is a conventional freezer compartment. The first and second compartments are separated by a partition, enabling independent temperature control for each compartment and preventing mutual interference. The cabinet contains an air duct, evaporator, compressor, air duct cover, first fan, and semiconductor refrigeration module. The air duct cover is installed on the air duct within the cabinet and can be positioned at the connection point between the air duct and the first compartment. It controls the on / off state of the air duct and the first compartment. When the first compartment is not switched to deep cooling mode, the air duct cover is closed, cutting off the connection between the air duct and the first compartment. When the first compartment is not switched to deep cooling mode, the air duct cover is open, ensuring that the cold air in the air duct can be smoothly delivered to the first compartment.

[0105] In some embodiments, a first fan is installed inside the air duct to directionally deliver the cold energy generated by the evaporator to the first and second compartments under the control of the controller, forming a complete air circulation loop in conjunction with the return channel. It should be understood that deep-freezing mode can be understood as an ultra-low temperature refrigeration function (e.g., -30°C to -40°C) far below conventional freezing temperatures (e.g., -18°C to -25°C, corresponding to the refrigeration temperature of a conventional freezer), which can quickly and deeply freeze food to lock in freshness. In deep-freezing mode, the first fan adjusts its speed according to the target setting determined by the controller, continuously delivering cold air to the first compartment to provide basic cooling for the first compartment, while also meeting the conventional freezing needs of the second compartment.

[0106] In some embodiments, the second fan is fixedly installed inside the first chamber and does not participate in the cold air delivery in the deep-cold mode. Instead, it is used to enhance the air disturbance in the first chamber, strengthen the heat exchange efficiency between the semiconductor refrigeration module and the air in the first chamber, so that the cold air can be evenly diffused into the first chamber, avoid local temperature unevenness in the first chamber, and ensure that the real-time temperature of the first chamber in the deep-cold mode can quickly and evenly reach the preset deep-cold range, thus ensuring the deep-cold preservation effect.

[0107] In some embodiments, the activation of the second fan forcibly disturbs the air inside the first compartment, forcing the descending cold air from the top to fully mix with the air at the bottom and sides, thus redistributing the cold energy accumulated at the bottom throughout the entire space of the first compartment. This forced convection makes the temperature fluctuations at any point in the first compartment more uniform, eliminating temperature dead zones caused by still or slow air diffusion, and ensuring that the storage surfaces in the first compartment under cryogenic mode receive a uniform low-temperature impact.

[0108] In some embodiments, the operation of the second fan forcibly disperses and mixes the heat generated at the hot end into the air throughout the first chamber, ensuring that the hot air evenly coats the surface of the food. This achieves hot air defrosting or uniform convection defrosting, preventing the loss of food juices and quality deterioration caused by localized overheating. Because the air is forcibly agitated, the temperature sensor in the first chamber detects the average temperature after uniform mixing, rather than localized extreme temperatures. This provides a more accurate feedback signal for controlling the start and stop of the semiconductor cooling module, thus improving the precision of temperature control.

[0109] In some embodiments, the semiconductor cooling module is installed on the intermediate partition between the first and second compartments, and has a first output terminal and a second output terminal facing the two compartments respectively. The semiconductor cooling module has a cold and hot output switching function, and the controller can switch the cold and hot states of the first and second output terminals according to different operating modes. In deep cooling mode, the controller controls the first output terminal of the semiconductor cooling module to release cold energy towards the first compartment to assist in deep cooling of the first compartment and accelerate the cooling speed of the first compartment; it also controls the second output terminal to release heat towards the second compartment, and the air duct cover opens and the first fan delivers cold air to the first compartment, making full use of the heat generated during the semiconductor cooling process to help the second compartment maintain the normal freezing temperature. There is no need for the compressor to be additionally loaded to cool the second compartment, realizing energy cascade utilization and reducing the overall energy consumption of the machine.

[0110] In some embodiments, the second compartment is equipped with a return channel, one end of which connects to the interior space of the second compartment, and the other end connects to the space where the evaporator is located, forming an air circulation system. In deep cooling mode, the return air from the first compartment and the return air from the second compartment merge through this return channel and enter the space where the evaporator is located. After reabsorbing the cooling capacity, the air is then transported to the first and second compartments by the first fan, improving the utilization rate of cooling capacity and the smoothness of air circulation, and maintaining the temperature stability in each compartment.

[0111] In some embodiments, the controller is electrically connected to the duct cover, the first fan, the second fan, the semiconductor refrigeration module, and the compressor, respectively, and can collect data such as the operating status of each component, the real-time temperature of the first compartment, and the cumulative running time of the compressor in real time, so as to ensure that both the deep cooling mode and the defrosting mode can operate stably.

[0112] In some embodiments, when the controller receives a user-triggered cryogenic mode switching command (such as clicking the cryogenic button, sending a command via remote control, etc.), it immediately responds to the command and controls the first chamber to switch to cryogenic mode, i.e., the first chamber is used as a cryogenic chamber. In cryogenic mode, the controller first controls the air duct cover to open, allowing unobstructed communication between the air duct and the first chamber; it controls the first fan to start, continuously delivering the cooling energy generated by the evaporator to the first chamber, providing basic cooling for the first chamber; it can also simultaneously control the semiconductor cooling module to start, adjusting the output state of the semiconductor cooling module so that the first output terminal of the semiconductor cooling module releases cooling energy towards the first chamber and the second output terminal releases cooling energy towards the second chamber, forming a dual cooling synergy effect and accelerating the cooling speed of the first chamber.

[0113] When the first chamber is used as a cryogenic chamber, i.e., when the first chamber is continuously operating in cryogenic mode, the controller continuously monitors the cumulative runtime of the compressor and collects real-time temperature data through temperature sensors inside the first chamber. This allows the controller to understand whether the current cooling progress meets the preset timing requirements, the difference between the real-time temperature and the preset cryogenic range, the stability of the temperature drop, and the temperature drop rate per unit time by continuously collecting real-time temperature data. This helps to determine whether the cooling efficiency meets the standard. Based on the cumulative runtime and the real-time temperature of the first chamber, the controller can determine the target speed of the compressor, semiconductor refrigeration module, and first fan to ensure that the operating intensity of each component is adapted to the current cooling demand. This avoids both insufficient cooling leading to cooling lag and excessive cooling causing energy waste.

[0114] Subsequently, the controller adjusts the compressor speed, the output power of the semiconductor refrigeration module, and the speed of the first fan to control the compressor, semiconductor refrigeration module, and first fan to operate at the target level. This allows for accurate control of the cooling intensity of the first compartment, ultimately maintaining the real-time temperature of the first compartment within the preset deep-cold range (e.g., -30℃ to -40℃). This meets the deep-cold storage needs of any food, especially high-end food, while also ensuring the stability of the refrigerator's overall operation and reasonable energy consumption.

[0115] Compared with the prior art, the refrigerator provided in this application embodiment arranges the cold and hot ends (first output end and second output end) of the semiconductor refrigeration module in two adjacent compartments (first compartment and second compartment). The first compartment is no longer a single-function freezer or defrost compartment, but can freely switch between deep-freeze and defrost modes, meeting the user's need for integrated food storage and pre-processing. Regardless of whether the first compartment is in deep-freeze or defrost mode, the refrigerator can achieve a temperature balance. In deep-freeze mode of the first compartment, the cold end accelerates the freezing effect, and the heat from the hot end is neutralized by the cold air delivered to the second compartment through the opened first air vent. In defrost mode of the first compartment, the hot end heats the first compartment to achieve defrost, and the cold air output from the cold end can be used for cooling the second compartment. This design achieves physical integration and energy recycling of two originally independent functions through the coupling of the semiconductor refrigeration module.

[0116] When the first chamber is used as a cryogenic chamber, a dual-mode cooling system is employed, combining duct cooling (evaporator base cooling capacity) and auxiliary cooling from a semiconductor refrigeration module. The first output of the semiconductor refrigeration module directly compensates for cooling capacity within the first chamber, effectively adding a secondary cooling source to traditional refrigeration. Due to the direct intervention of the semiconductor refrigeration module, the temperature can be rapidly lowered, shortening the time to reach cryogenic temperatures. Furthermore, the cooling output of the semiconductor refrigeration module can compensate for localized temperature differences that are difficult to cover with air cooling, reducing temperature fluctuations within the first chamber and enabling it to exceed the lower limit of single evaporator cooling capacity, achieving even lower cryogenic temperature zones.

[0117] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0118] It is understood that the embodiments of the refrigerator control method and any implementation thereof correspond to the refrigerator embodiments and any implementation thereof, respectively. The technical effects corresponding to the refrigerator control method embodiments and any implementation thereof can be found in the above-mentioned technical effects corresponding to the refrigerator embodiments and any implementation thereof, and will not be repeated here.

[0119] Corresponding to the refrigerator control method in the above embodiment, Figure 6 This is a schematic diagram of the structure of a refrigerator control device provided in an embodiment of this application. The device can be implemented as part or all of a computer device by software, hardware, or a combination of both. This computer device can be... Figure 7 The electronic device shown.

[0120] The refrigerator includes: a cabinet comprising a first compartment and a second compartment arranged adjacent to each other; the cabinet contains an air duct, an evaporator, a compressor, an air duct cover, a first fan, a second fan, and a semiconductor refrigeration module; the air duct cover is disposed on the air duct and is used to control the connection between the air duct and the first compartment; the first fan is used to transport the cooling energy generated by the evaporator through the air duct to the first compartment and the second compartment; the second fan is disposed in the first compartment and is used to enhance air turbulence within the first compartment; the semiconductor refrigeration module is disposed between the first compartment and the second compartment and has a first output terminal and a second output terminal that can switch between cooling and heating outputs; the second compartment has a return flow channel communicating with the space where the evaporator is located; see reference. Figure 6 The refrigerator's control device includes: The first control unit 601 is used to control the first compartment to operate in deep cooling mode in response to the deep cooling mode switching command. In deep cooling mode, the air duct cover is opened, the first fan delivers cold air to the first compartment, the first output terminal of the semiconductor refrigeration module releases cold energy toward the first compartment, and the second output terminal of the semiconductor refrigeration module releases cold energy toward the second compartment.

[0121] The second control unit 601 is used to control the compressor, the semiconductor refrigeration module, and the first fan to operate at the target speed according to the cumulative running time of the compressor and the real-time temperature of the first compartment, so as to maintain the real-time temperature of the first compartment in the preset deep-cooling range.

[0122] It is understood that the refrigerator control device embodiment and any implementation thereof correspond to the refrigerator embodiment, the refrigerator control method embodiment and any implementation thereof, respectively. The technical effects corresponding to the refrigerator control device embodiment and any implementation thereof can be found in the aforementioned technical effects corresponding to the refrigerator embodiment, the refrigerator control method embodiment and any implementation thereof, and will not be repeated here.

[0123] It should be noted that the refrigerator control device provided in the above embodiments is only an example of the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0124] The functional units and modules in the above embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of the embodiments of this application.

[0125] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0126] This application also provides an electronic device, which includes one or more processors and a memory; The memory is coupled to one or more processors. The memory is used to store computer program code, which includes computer instructions. One or more processors invoke the computer instructions to cause the electronic device to perform the aforementioned refrigerator control method.

[0127] Figure 7This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device 700 can be a mobile phone, smart screen, tablet computer, wearable electronic device, in-vehicle electronic device, augmented reality (AR) device, virtual reality (VR) device, laptop computer, ultra-mobile personal computer (UMPC), netbook, personal digital assistant (PDA), projector, or a communication device such as a server, storage device, or base station, or a smart car, etc. This application embodiment does not impose any limitations on the specific type of electronic device.

[0128] The memory 701 can be used to store computer software programs 702 and modules. The processor 703 executes various functional applications and data processing of the electronic device by running the software programs and modules stored in the memory 701. The memory 701 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device (such as audio data, telephone directory, etc.). In addition, the memory 701 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0129] The processor 703 may include one or more processors such as a central processing unit (CPU), an application processor (AP), and a baseband processor. The processor can serve as the nerve center and command center of the wireless router. The processor 703 can generate operation control signals based on instruction opcodes and timing signals to control instruction fetching and execution. The memory 701 can be used to store executable program code, including instructions. The processor 703 executes various functional applications and data processing of the network device by running the instructions stored in the memory. The memory 701 may include a program storage area and a data storage area, such as storing data for audio signals to be played. For example, the memory may be Double Data Rate Synchronous Dynamic Random Access Memory (DDR) or Flash memory.

[0130] This application also provides a computer-readable storage medium storing computer instructions; when the computer-readable storage medium is used on an electronic device, it causes the electronic device to execute the aforementioned refrigerator control method.

[0131] The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or can include one or more data storage devices such as servers or data centers that can be integrated with media. The available medium can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media, or semiconductor media (e.g., solid-state disks (SSDs)).

[0132] This application also provides a computer program product containing computer instructions, which, when run on an electronic device, enables the electronic device to execute the aforementioned refrigerator control method.

[0133] The computer storage medium and computer program product provided in the embodiments of this application are used to execute the methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects corresponding to the methods provided above, and will not be repeated here.

[0134] In the above embodiments, implementation can also be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access, or a data storage device such as a server or data center that integrates one or more available media. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc., and the storage medium can also include combinations of the above types of memory.

[0135] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0136] In the embodiments provided in this application, it should be understood that the disclosed apparatus / network devices and methods can be implemented in other ways. For example, the apparatus / network device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0137] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0138] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A refrigerator, characterized in that, include: The enclosure includes a first compartment and a second compartment arranged adjacent to each other. The enclosure is equipped with an air duct, an evaporator, a compressor, an air duct cover, a first fan, a second fan, and a semiconductor refrigeration module. The duct cover is disposed on the duct and is used to control the connection between the duct and the first compartment; The first fan is used to transport the cooling energy generated by the evaporator to the first compartment and the second compartment through the air duct; The second fan is installed in the first room to enhance air disturbance in the first room; The semiconductor cooling module is disposed between the first compartment and the second compartment, and has a first output terminal and a second output terminal that can switch between cold and hot output; The second chamber is provided with a reflux channel that communicates with the space where the evaporator is located; The controller, connected to the duct cover, the first fan, the second fan, the semiconductor refrigeration module, and the compressor, is configured to: In response to the deep cooling mode switching command, the first chamber is controlled to operate in deep cooling mode, wherein, in the deep cooling mode, the air duct cover is opened, the first fan delivers cold air to the first chamber, the first output terminal of the semiconductor refrigeration module releases cold energy toward the first chamber, and the second output terminal of the semiconductor refrigeration module releases heat toward the second chamber. Based on the cumulative running time of the compressor and the real-time temperature of the first chamber, the compressor, the semiconductor refrigeration module, and the first fan are controlled to operate at the target speed so that the real-time temperature of the first chamber is maintained within the preset deep-cooling range.

2. The refrigerator according to claim 1, characterized in that, The controller is also configured to: In response to a defrosting mode switching command, the first chamber is controlled to operate in defrosting mode, wherein, in the defrosting mode, the duct cover is closed, the first fan only delivers cold air to the second chamber, the first output end releases heat toward the first chamber, and the second output end releases cold energy toward the second chamber; Based on the real-time temperature of the first chamber and the set temperature of the defrosting mode, the start and stop of the semiconductor cooling module and the second fan are controlled so that the real-time temperature of the first chamber is maintained within the preset defrosting range.

3. The refrigerator according to claim 1, characterized in that, The controller is configured to control the first compartment to operate in deep cooling mode, and to control the compressor, the semiconductor refrigeration module, and the first fan to operate at the initial speed, and to start recording the cumulative running time of the compressor. The controller is configured to control the compressor, the semiconductor refrigeration module, and the first fan to operate at a target speed based on the cumulative running time of the refrigerator's compressor and the real-time temperature of the first compartment. Obtain multiple preset runtime durations and the target temperature corresponding to each preset runtime duration; If the cumulative running time reaches any of the preset running times, then the corresponding target level is determined based on the relationship between the target temperature corresponding to the preset running time and the real-time temperature of the first room. Control the compressor, the semiconductor refrigeration module, and the first fan to operate at the target speed.

4. The refrigerator according to claim 3, characterized in that, The multiple preset running durations include a first preset duration, a second preset duration, a third preset duration, and a fourth preset duration; the target temperature includes a first temperature, a second temperature, and a third temperature, wherein the first preset duration corresponds to the first temperature, the second preset duration corresponds to the second temperature, and both the third and fourth preset durations correspond to the third temperature; the controller executes the following: if the cumulative running duration reaches any one of the preset running durations, then based on the relationship between the target temperature corresponding to the preset running duration and the real-time temperature of the first room, the corresponding target level is determined and configured as follows: If the cumulative running time reaches the first preset time, the corresponding target level is determined based on the relationship between the real-time temperature of the first room and the first temperature. If the cumulative running time reaches the second preset time, then based on the relationship between the real-time temperature of the first room and the second temperature, a corresponding target level is determined, wherein the first preset time is less than the second preset time, and the first temperature is greater than the second temperature; If the cumulative running time reaches the third preset time, then based on the relationship between the real-time temperature of the first room and the third temperature, a corresponding target level is determined, wherein the second preset time is less than the third preset time, and the second temperature is greater than the third temperature; If the cumulative running time reaches the fourth preset time, then based on the relationship between the real-time temperature of the first room and the third temperature, a corresponding target level is determined, wherein the third preset time is less than the fourth preset time.

5. The refrigerator according to claim 4, characterized in that, The preset cryogenic range is defined based on a third temperature and a fourth temperature, wherein the fourth temperature is lower than the third temperature, and the controller is further configured to: When the real-time temperature of the first chamber is not lower than the third temperature, the compressor and the semiconductor refrigeration module are controlled to run continuously. When the real-time temperature of the first chamber is lower than the third temperature, the compressor and the semiconductor refrigeration module are controlled to continue running until the real-time temperature of the first chamber drops to the fourth temperature and then stop running. When the real-time temperature of the first compartment rises back to the third temperature, the compressor and the semiconductor refrigeration module are restarted to maintain the real-time temperature of the first compartment within the preset cryogenic range.

6. The refrigerator according to any one of claims 1 to 5, characterized in that, The controller is also configured to: During the operation of the deep cooling mode in the first compartment, in response to the door opening operation corresponding to the first compartment, the compressor and the semiconductor refrigeration module are controlled to continue running, and the first fan is controlled to stop running; In response to the door closing operation corresponding to the first room, the first fan is controlled to restart and resume the operating mode before the door opening operation.

7. The refrigerator according to any one of claims 1 to 5, characterized in that, The controller is also configured to: When the real-time temperature of the second chamber rises back to the fifth temperature, the compressor and the first fan are kept running, and the semiconductor refrigeration module is stopped. When the real-time temperature of the second chamber drops to the sixth temperature, the compressor, the first fan, and the semiconductor refrigeration module are controlled to resume operation before the real-time temperature rises. Wherein, the fifth temperature is greater than the sixth temperature, the fifth temperature and the sixth temperature together define the preset cooling range of the second chamber, and all temperature values ​​in the preset cooling range of the second chamber are higher than all temperature values ​​in the preset cryogenic range.

8. The refrigerator according to any one of claims 1 to 5, characterized in that, The controller is also configured to: In response to the refrigerator performing a defrost operation, the compressor, the first fan, and the semiconductor refrigeration module are all controlled to stop operating. In response to the completion of the defrosting operation, the compressor, the first fan, and the semiconductor refrigeration module are controlled to resume operation from their pre-defrosting state; wherein the defrosting operation has the highest priority.

9. The refrigerator according to claim 2, characterized in that, The preset thawing range is defined based on the set temperature of the thawing mode and the set temperature plus a preset temperature difference, wherein the preset temperature difference is a positive number and the set temperature is less than the set temperature plus the preset temperature difference; The controller executes the control to operate the first compartment in a defrosting mode, and is configured as follows: The semiconductor cooling module is controlled to operate at full power, the second fan is controlled to operate at a preset speed, and the real-time temperature of the first chamber is detected at a first preset cycle. The controller, configured to control the start and stop of the semiconductor refrigeration module and the second fan based on the real-time temperature of the first chamber and the set temperature of the defrosting mode, is as follows: If the real-time temperature of the first room is not higher than the set temperature within the first preset period, then the operation of the semiconductor cooling module and the second fan is maintained. If the real-time temperature of the first room is higher than the set temperature within the first preset period, then the real-time temperature of the first room is detected for the second preset period. If the real-time temperature of the first chamber is not higher than the set temperature plus the preset temperature difference within the second preset period, then the operation of the semiconductor cooling module and the second fan is maintained. If the real-time temperature of the first chamber is higher than the set temperature plus a preset temperature difference within the second preset period, then the semiconductor cooling module and the second fan are controlled to stop operating.

10. A method for controlling a refrigerator, characterized in that, The refrigerator includes: a cabinet containing a first compartment and a second compartment arranged adjacent to each other; the cabinet contains an air duct, an evaporator, a compressor, an air duct cover, a first fan, a second fan, and a semiconductor refrigeration module. The duct cover is disposed on the duct and is used to control the connection between the duct and the first compartment; The first fan is used to transport the cooling energy generated by the evaporator to the first compartment and the second compartment through the air duct; The second fan is installed in the first room to enhance air disturbance in the first room; The semiconductor cooling module is disposed between the first compartment and the second compartment, and has a first output terminal and a second output terminal that can switch between cold and hot output; The second chamber is provided with a reflux channel that communicates with the space where the evaporator is located; The control method includes: In response to the deep cooling mode switching command, the first chamber is controlled to operate in deep cooling mode, wherein, in the deep cooling mode, the air duct cover is opened, the first fan delivers cold air to the first chamber, the first output terminal of the semiconductor refrigeration module releases cold energy toward the first chamber, and the second output terminal of the semiconductor refrigeration module releases heat toward the second chamber. Based on the cumulative running time of the compressor and the real-time temperature of the first chamber, the compressor, the semiconductor refrigeration module, and the first fan are controlled to operate at the target speed so that the real-time temperature of the first chamber is maintained within the preset deep-cooling range.

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