Refrigerator, control method and device thereof and storage medium

Abstract

The invention provides a refrigerator, a control method and device of the refrigerator and a storage medium. The refrigerator comprises a heat exchanger and a fan module. The fan module is configured to guide gas to exchange heat with the heat exchanger; the fan module comprises a stator assembly, a rotor assembly and an impeller assembly; the stator assembly is in magnetic suspension connection with the rotor assembly; the impeller assembly is fixedly connected with the rotor assembly; the control method comprises the steps that the rotor assembly is controlled to be in a preset suspension state; acquiring operation request information of the refrigerator; according to the operation request information, the required rotating speed of the impeller assembly is determined; and according to the required rotating speed, the stator assembly is controlled to provide first magnetic force matched with the required rotating speed, so that the rotor assembly rotates to drive the impeller assembly to rotate at the required rotating speed.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a refrigerator and a control method, device and storage medium thereof. Background Art

[0002] The refrigerator uses a fan to drive the gas to exchange heat with the internal heat exchanger to achieve the purpose of cooling the compartment. In the related art, the traditional refrigerator fan usually uses a mechanical bearing to support the rotor, which will generate friction during operation, resulting in low refrigeration efficiency. Summary of the invention

[0003] The present application provides a refrigerator and a control method, device and storage medium thereof, aiming to solve the problem in the prior art that friction is generated during the operation of the fan, resulting in low refrigeration efficiency.

[0004] In a first aspect, the present application provides a control method for a refrigerator, the refrigerator comprising a heat exchanger and a fan module; the fan module is configured to guide gas to exchange heat with the heat exchanger; the fan module comprises a stator assembly, a rotor assembly and an impeller assembly; the stator assembly is magnetically suspended and connected to the rotor assembly; the impeller assembly is fixedly connected to the rotor assembly; the control method comprises:

[0005] Controlling the rotor assembly to be in a preset suspension state;

[0006] Obtaining operation request information of the refrigerator;

[0007] Determining a required rotation speed of the impeller assembly according to the operation request information;

[0008] According to the required rotational speed, the stator assembly is controlled to provide a first magnetic force adapted to the required rotational speed, so that the rotor assembly rotates and drives the impeller assembly to rotate at the required rotational speed.

[0009] Optionally, controlling the rotor assembly to be in a preset suspension state comprises:

[0010] Obtaining a current operating state of the rotor assembly;

[0011] If the current running state of the rotor assembly is a stationary state, obtaining current position information of the rotor assembly;

[0012] According to the current position information, the stator assembly is controlled to provide a second magnetic force until the rotor assembly is in a preset suspension position.

[0013] Optionally, according to the current position information, controlling the stator assembly to provide a second magnetic force until the rotor assembly is in a preset suspension position comprises:

[0014] Controlling the second magnetic force provided by the stator assembly to gradually increase;

[0015] Acquiring first real-time position information of the rotor assembly;

[0016] determining whether the rotor assembly is in the preset suspension position according to the first real-time position information;

[0017] If not, continue to control the second magnetic force provided by the stator assembly to gradually increase until the rotor assembly is in the preset suspension position;

[0018] If so, the following steps are performed: according to the required rotational speed, the stator assembly is controlled to provide a first magnetic force that matches the required rotational speed.

[0019] Optionally, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes:

[0020] Acquiring real-time rotation speed and / or second real-time position information and / or vibration information of the rotor assembly;

[0021] The magnitude and / or direction of the first magnetic force provided by the stator assembly is adjusted according to the real-time rotation speed and / or the second real-time position information and / or vibration information.

[0022] Optionally, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes:

[0023] Acquiring temperature information of the stator assembly;

[0024] According to the temperature information, the magnitude of the first magnetic force provided by the stator component is adjusted or the stator component is controlled to stop providing the first magnetic force.

[0025] Optionally, the operation request information includes one of normal refrigeration operation request information, rapid refrigeration operation request information and defrost operation request information.

[0026] In a second aspect, the present application further proposes a control device for a refrigerator, the refrigerator comprising a heat exchanger and a fan module; the fan module is configured to guide gas to exchange heat with the heat exchanger; the fan module comprises a stator assembly, a rotor assembly and an impeller assembly; the stator assembly is magnetically suspended and connected to the rotor assembly; the impeller assembly is fixedly connected to the rotor assembly; the control device comprises:

[0027] A control module, used for controlling the rotor assembly to be in a preset suspension state;

[0028] An acquisition module, used for acquiring operation request information of the refrigerator;

[0029] A determination module, configured to determine a required rotation speed of the impeller assembly according to the operation request information;

[0030] The control module is used to control the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, so as to rotate the rotor assembly and drive the impeller assembly to rotate at the required speed.

[0031] In a third aspect, the present application further proposes a refrigerator, wherein the impeller assembly is fixedly connected to the rotor assembly; and the controller is configured to execute the control method of the refrigerator as described above.

[0032] Optionally, the stator assembly includes a plurality of electromagnets, which are arranged at intervals along the rotation direction of the rotor assembly; the rotor assembly includes a permanent magnet, which, when the plurality of electromagnets are energized, causes the rotor assembly to be in a suspended state and drives the impeller assembly to rotate; and / or the heat exchanger includes a condenser or an evaporator.

[0033] In a fourth aspect, the present application further proposes a computer-readable storage medium on which a computer program is stored, and the computer program is loaded by a processor to execute the steps in the above refrigerator control method.

[0034] In the technical solution of the embodiment of the present application, the rotor assembly is placed in a preset suspension state, and the required rotational speed of the impeller assembly is determined based on the operation request information of the refrigerator, so that the stator assembly provides a first magnetic force that is adapted to the required rotational speed, so that the rotor assembly rotates and drives the impeller assembly to rotate at the required rotational speed, so that while meeting the operation request of the refrigerator, there is no friction between the impeller assembly and the external structure during rotation, and thus no wear, which is beneficial to improving the refrigeration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 is a flow chart of an embodiment of a method for controlling a refrigerator in an embodiment of the present application;

[0037] Figure 2 yes Figure 1 Schematic diagram of sub-steps of step S100;

[0038] Figure 3 yes Figure 2Schematic diagram of sub-steps of step S130;

[0039] Figure 4 It is a flowchart of another embodiment of the refrigerator control method in the embodiment of the present application;

[0040] Figure 5 is a flowchart of another embodiment of the method for controlling a refrigerator in an embodiment of the present application;

[0041] Figure 6 It is a structural schematic diagram of the control device of the refrigerator in the embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiment is only a component embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0044] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the invention can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0045] Refrigerators are common household appliances used to freeze or refrigerate food. The refrigerator's refrigeration system achieves cooling of the refrigerator compartment. The refrigeration system includes a heat exchanger, a throttling device, a compressor, a refrigerant pipe and a fan module. The heat exchanger includes a condenser and an evaporator. The fan module includes a first fan module for guiding air to exchange heat with the condenser and a second fan module for guiding air to exchange heat with the evaporator; the compressor compresses the refrigerant and sends it to the condenser; the first fan module drives the air to exchange heat with the condenser, so that the refrigerant in the condenser cools down; then the throttling device throttles and reduces pressure; then the low-temperature and low-pressure refrigerant enters the evaporator; the second fan module drives the air to exchange heat with the evaporator, the air is cooled, and the refrigerant temperature increases; the cooled air is sent into the compartment, and the refrigerant with increased temperature is sent back to the compressor to achieve the circulation of the refrigerant; in this way, the refrigeration system achieves cooling of the compartment.

[0046] In the related art, the fan module uses a mechanical bearing to support the fan shaft so that it is in a preset radial position. When rotating, the fan shaft rubs against the bearing, causing wear and reducing the refrigeration efficiency. To this end, the embodiments of the present application provide a refrigerator and a control method, device and storage medium thereof, which are described in detail below.

[0047] In the refrigerator provided in the embodiment of the present application, the refrigerator includes a heat exchanger and a fan module. The fan module is configured to guide the gas to exchange heat with the heat exchanger; the fan module includes a stator assembly, a rotor assembly and an impeller assembly; the stator assembly is magnetically suspended and connected to the rotor assembly; the impeller assembly is fixedly connected to the rotor assembly. The stator assembly can be placed in a preset suspension position, so that the impeller assembly does not have friction with the external structure when rotating, and thus does not have wear, which is conducive to improving the refrigeration efficiency.

[0048] In an embodiment, the heat exchanger may be a condenser; that is, when the rotor assembly is suspended, the fan module drives the air to exchange heat with the condenser to cool the refrigerant.

[0049] In an embodiment, the heat exchanger may be an evaporator; that is, when the rotor assembly is suspended, the fan module drives the air to exchange heat with the evaporator to cool the air, and the air with reduced temperature enters the room; and the refrigerant temperature is increased and then sent to the compressor for the next round of circulation.

[0050] In some embodiments, the condenser and evaporator of the refrigerator can both adopt the fan module illustrated in the embodiments of the present application, that is, the condenser and evaporator of the refrigerator both use a magnetically suspended fan to drive the air to exchange heat with it.

[0051] In some embodiments, the evaporator in the refrigerator may include a freezing evaporator and a refrigerating evaporator. In other embodiments, the evaporator in the refrigerator may have only one, that is, the refrigerator is a single-system refrigerator.

[0052] In the technical solution of the embodiment of the present application, the refrigerator also includes a controller, and the controller is used to execute the control method of the refrigerator provided by the embodiment of the present application.

[0053] In the technical solution of the embodiment of the present application, the stator assembly includes an electromagnet; the electromagnet is used to generate a magnetic field; the current (magnitude and direction) passing through the electromagnet can be adjusted to generate different magnetic fields. In some embodiments, the current in the electromagnet can be adjusted by a control circuit. The electromagnet selects copper or copper alloy with high conductivity and low loss as the coil material to improve the efficiency and response speed of the electromagnet.

[0054] In some embodiments, the rotor assembly includes a rotor housing and a permanent magnet; the permanent magnet is disposed in the rotor housing. The permanent magnet can be a high-performance rare earth permanent magnet, such as neodymium iron boron (NdFeB), to provide a strong magnetic field to ensure the stability and durability of the suspension force. The rotor housing is made of a lightweight, high-strength, and high-permeability material, such as an aluminum alloy or a special alloy, to reduce the weight of the rotor and improve the suspension stability and response speed.

[0055] In some embodiments, the stator assembly is provided with a plurality of electromagnets, which generate forces that interact with the permanent magnets by precisely controlling the current and magnetic field strength, so that the rotor can achieve stable suspension in the horizontal and vertical directions. Specifically, the stator assembly includes a plurality of electromagnets, which are arranged at intervals along the rotation direction of the rotor assembly. In an embodiment, each electromagnet can be configured to be powered separately, so that the current size and direction of each electromagnet can be controlled separately, so that the size and direction of the provided magnetic field can be adjusted, and the size of the magnetic force can be adjusted.

[0056] In some embodiments, the radial gap between the rotor assembly and the stator assembly is specifically set according to actual conditions.

[0057] In some embodiments, the fan housing is made of lightweight and high-strength materials, such as aluminum alloy or carbon fiber composite materials, to reduce the overall weight and improve heat dissipation performance. These materials not only have excellent mechanical properties and thermal stability, but also can reduce the operating noise and energy consumption of the fan.

[0058] like Figure 1 FIG. 1 is a flow chart of an embodiment of a method for controlling a refrigerator in an embodiment of the present application. The method for controlling a refrigerator includes:

[0059] S100, controlling the rotor assembly to be in a preset suspension state;

[0060] S200, obtaining operation request information of the refrigerator;

[0061] S300, determining a required rotation speed of the impeller assembly according to the operation request information;

[0062] S400, according to the required rotational speed, controlling the stator assembly to provide a first magnetic force adapted to the required rotational speed, so that the rotor assembly rotates and drives the impeller assembly to rotate at the required rotational speed.

[0063] In the technical solution of the embodiment of the present application, the rotor assembly is placed in a preset suspension state, and the required rotational speed of the impeller assembly is determined based on the operation request information of the refrigerator, so that the stator assembly provides a first magnetic force that is adapted to the required rotational speed, so that the rotor assembly rotates and drives the impeller assembly to rotate at the required rotational speed, so that while meeting the operation request of the refrigerator, there is no friction between the impeller assembly and the external structure during rotation, and thus no wear, which is beneficial to improving the refrigeration efficiency.

[0064] In some technical solutions, the operating state of the fan module can be switched from one rotation state to another rotation state, such as reducing from one speed to another speed; the operating state of the fan module can be switched from a stop state to a rotation state, such as starting the fan module.

[0065] As an optional implementation of the above embodiment, Figure 2 As shown, controlling the rotor assembly to be in a preset suspension state includes:

[0066] S110, obtaining the current operating state of the rotor assembly;

[0067] S120, if the current operating state of the rotor assembly is a stationary state, obtaining current position information of the rotor assembly;

[0068] S130: Control the stator assembly to provide a second magnetic force according to the current position information until the rotor assembly is in a preset suspension position.

[0069] In this embodiment, when the fan module is started, the current operating state of the rotor assembly is a stationary state, at which time the current position information of the rotor assembly is obtained, and according to the current position information, the stator assembly is controlled to provide a second magnetic force so that the rotor assembly is in a preset suspension position. That is, when the fan module is started, the second magnetic force needs to be determined according to the current position of the rotor assembly so that the rotor assembly is in a preset suspension position, so that the impeller assembly is in a state of no contact with the outside when rotating.

[0070] In some embodiments, controlling the stator assembly to provide a second magnetic force includes controlling the magnitude and direction of the second magnetic force provided by the stator assembly, so that the rotor assembly is suspended from the current position information to a preset suspension position. In some embodiments, when the fan module stops, the rotor assembly is in an eccentric position of the stator assembly when there is no suspension force; this eccentric position is the current position of the rotor assembly; according to the eccentric position and the preset suspension position (which can be set to the center position of the stator assembly), the magnitude and direction of the second magnetic force that the stator assembly should provide is determined; for example, a portion of the multiple electromagnets in the stator assembly is controlled to be energized, and the magnitude and direction of the current are adjusted to suspend the rotor assembly in the eccentric position to the preset suspension position.

[0071] As an optional implementation of the above embodiment, Figure 3 As shown, according to the current position information, controlling the stator assembly to provide a second magnetic force until the rotor assembly is in a preset suspension position includes:

[0072] S131, controlling the second magnetic force provided by the stator assembly to gradually increase;

[0073] S132, obtaining first real-time position information of the rotor assembly;

[0074] S133, judging whether the rotor assembly is in the preset suspension position according to the first real-time position information;

[0075] S134, if not, continue to control the second magnetic force provided by the stator assembly to gradually increase until the rotor assembly is in the preset suspension position;

[0076] If so, execute step S400: according to the required rotational speed, control the stator assembly to provide a first magnetic force adapted to the required rotational speed.

[0077] That is, in the embodiment, the magnitude of the second magnetic force is gradually increased; that is, the fan module is soft-started from stop to start, which reduces the startup noise and impact, and is conducive to protecting the fan module. In the embodiment, the rotor assembly can be gradually suspended by adjusting the current of the electromagnet. In this process, by obtaining the first real-time position information in real time, it is determined whether it is in the preset suspension position; if not, the second magnetic force is gradually increased until it is determined that the rotor assembly is in the preset suspension position.

[0078] After the rotor assembly reaches the preset suspension position, the second magnetic force and the required rotational speed have a corresponding relationship to determine the second magnetic force that matches the required rotational speed; the second magnetic force and the current have a corresponding relationship, and then the electromagnet is controlled to obtain a current that matches the second magnetic force, so that the impeller assembly starts to rotate at the required rotational speed.

[0079] In an embodiment, the fan module is provided with a position sensor for measuring the position of the rotor assembly, and the position sensor feeds back the collected position signal to the controller; the controller determines the position state of the rotor assembly based on the position signal and determines whether it has reached a preset suspension position.

[0080] As an optional implementation of the above embodiment, Figure 4 As shown, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes:

[0081] S500, acquiring the real-time rotation speed and / or second real-time position information and / or vibration information of the rotor assembly;

[0082] S600: Adjust the magnitude and / or direction of the first magnetic force provided by the stator assembly according to the real-time rotation speed and / or the second real-time position information and / or vibration information.

[0083] In an embodiment, in order to ensure that the rotation speed of the impeller assembly is in a stable state, the magnitude of the first magnetic force provided by the stator assembly is adjusted by monitoring the real-time rotation speed and / or the second real-time position information and / or vibration information of the rotor assembly, so that the rotation speed is stable and the refrigerator provides stable cooling.

[0084] For example, in some embodiments, if the real-time rotation speed is lower than the required rotation speed, the first magnetic force can be increased; otherwise, the first magnetic force can be reduced to reasonably match the real-time rotation speed with the required rotation speed.

[0085] For example, in some embodiments, if it is determined based on the second real-time position information that the rotor assembly deviates from the preset suspension position, the magnitude and / or direction of the first magnetic force can be changed to return the rotor assembly to the preset suspension position, thereby improving operational stability.

[0086] For example, in some embodiments, when it is determined based on the vibration information that the vibration amplitude or frequency of the rotor assembly exceeds a preset amplitude or a preset frequency, the magnitude of the first magnetic force can be reduced to reduce its vibration and improve operational stability.

[0087] As an optional implementation of the above embodiment, Figure 5 As shown, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes:

[0088] S700, obtaining temperature information of the stator assembly;

[0089] S800: According to the temperature information, adjust the magnitude of the first magnetic force provided by the stator assembly or control the stator assembly to stop providing the first magnetic force.

[0090] In an embodiment, when the stator assembly provides the first magnetic force, it will generate heat because it is in a power supply state; therefore, in order to improve the operating safety of the fan module and prevent the stator assembly from overheating, the magnitude of the first magnetic force provided by the stator assembly can be adjusted or the stator assembly can be controlled to stop providing the first magnetic force. For example, when the temperature value corresponding to the temperature information of the stator assembly exceeds the preset temperature value, the magnitude of the first magnetic force can be reduced or the stator assembly can be controlled to stop providing the first magnetic force to reduce heat.

[0091] In some cases, the stator assembly may be overloaded or short-circuited and generate heat. In this case, the stator assembly may be controlled to stop providing the first magnetic force to ensure the safety of the refrigerator.

[0092] As an optional implementation of the above embodiment, the operation request information includes one of conventional refrigeration operation request information, rapid refrigeration operation request information and defrost operation request information. In some embodiments, the refrigerator has a conventional refrigeration mode, a rapid refrigeration mode and a defrost operation mode. In the conventional refrigeration mode, the required speed of the fan module is a first preset speed; in the rapid refrigeration mode, the required speed of the fan module is a second preset speed; the second preset speed is greater than the first preset speed, which increases the refrigeration capacity of the refrigerator; in the defrost operation mode, the required speed of the fan module is a third preset speed.

[0093] Users can select the required operating mode through APP operation or control panel operation. The refrigerator can also adaptively adjust the operating mode according to the temperature of the internal compartment.

[0094] In some embodiments, the operation request information may also be energy-saving operation request information, intelligent operation request information, noise reduction operation request information, valley power operation request information, ice-making operation request information, variable temperature operation request information, and the like.

[0095] In the technical solution of the embodiment of the present application, when the fan module needs to stop running, that is, when the operation request for the fan module to stop running is obtained, the magnetic force provided by the stator assembly is controlled to gradually decrease to 0, so that the rotor assembly gradually moves from a preset suspension position to a static position, so that the rotor assembly is stably stationary.

[0096] In order to better implement the refrigerator control method in the embodiment of the present application, based on the refrigerator control method, a refrigerator control device is also provided in the embodiment of the present application, such as Figure 6 As shown, the control device of the refrigerator includes:

[0097] A control module 10, used for controlling the rotor assembly to be in a preset suspension state;

[0098] An acquisition module 20, configured to acquire operation request information of the refrigerator;

[0099] A determination module 30, configured to determine a required rotation speed of the impeller assembly according to the operation request information;

[0100] The control module is used to control the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, so as to rotate the rotor assembly and drive the impeller assembly to rotate at the required speed.

[0101] Optionally, when the rotor assembly is controlled to be in a preset suspension state,

[0102] The acquisition module is further configured to acquire the current operating state of the rotor assembly; if the current operating state of the rotor assembly is a stationary state, then acquire the current position information of the rotor assembly;

[0103] The control module is further configured to control the stator assembly to provide a second magnetic force according to the current position information until the rotor assembly is in a preset suspension position.

[0104] Optionally, according to the current position information, the stator assembly is controlled to provide a second magnetic force until the rotor assembly is in a preset suspension position.

[0105] The control module is further configured to control the second magnetic force provided by the stator assembly to gradually increase;

[0106] The acquisition module is further configured to acquire first real-time position information of the rotor assembly;

[0107] The judging module judges whether the rotor assembly is in the preset suspension position according to the first real-time position information;

[0108] The control module is further configured to, if not, continue to control the second magnetic force provided by the stator assembly to gradually increase until the rotor assembly is in the preset suspension position;

[0109] The control module is also configured to, if yes, execute the step: according to the required speed, control the stator assembly to provide a first magnetic force that matches the required speed.

[0110] Optionally, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed:

[0111] The acquisition module is further configured to acquire the real-time rotation speed and / or second real-time position information and / or vibration information of the rotor assembly;

[0112] The adjustment module is configured to adjust the magnitude and / or direction of the first magnetic force provided by the stator assembly according to the real-time rotation speed and / or the second real-time position information and / or vibration information.

[0113] Optionally, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed,

[0114] The acquisition module is configured to acquire temperature information of the stator assembly;

[0115] The control module is configured to adjust the magnitude of the first magnetic force provided by the stator component or control the stator component to stop providing the first magnetic force according to the temperature information.

[0116] Optionally, the operation request information includes one of normal refrigeration operation request information, rapid refrigeration operation request information and defrost operation request information.

[0117] An embodiment of the present application also proposes a control system for a refrigerator, comprising: one or more processors; a memory; and one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the refrigerator control method as described above.

[0118] In general, usually, the control system of the refrigerator includes: at least one processor, at least one memory, and a control program of the refrigerator control system stored in the memory and executable on the processor, and the control program of the refrigerator control system is configured to implement the steps of the foregoing control method.

[0119] The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. The processor may also include an AI (Artificial Intelligence) processor, which is used to process the control method operation of the control system of the refrigerator, so that the control method model of the control system of the refrigerator can be trained and learned autonomously to improve efficiency and accuracy.

[0120] The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one instruction, which is used to be executed by the processor to implement the refrigerator control method of the refrigerator control system provided in the method embodiment of the present application:

[0121] Controlling the rotor assembly to be in a preset suspension state;

[0122] Obtaining operation request information of the refrigerator;

[0123] Determining a required rotation speed of the impeller assembly according to the operation request information;

[0124] According to the required rotational speed, the stator assembly is controlled to provide a first magnetic force adapted to the required rotational speed, so that the rotor assembly rotates and drives the impeller assembly to rotate at the required rotational speed.

[0125] Optionally, controlling the rotor assembly to be in a preset suspension state comprises:

[0126] Obtaining a current operating state of the rotor assembly;

[0127] If the current running state of the rotor assembly is a stationary state, obtaining current position information of the rotor assembly;

[0128] According to the current position information, the stator assembly is controlled to provide a second magnetic force until the rotor assembly is in a preset suspension position.

[0129] Optionally, according to the current position information, controlling the stator assembly to provide a second magnetic force until the rotor assembly is in a preset suspension position comprises:

[0130] Controlling the second magnetic force provided by the stator assembly to gradually increase;

[0131] Acquiring first real-time position information of the rotor assembly;

[0132] determining whether the rotor assembly is in the preset suspension position according to the first real-time position information;

[0133] If not, continue to control the second magnetic force provided by the stator assembly to gradually increase until the rotor assembly is in the preset suspension position;

[0134] If so, the following steps are performed: according to the required rotational speed, the stator assembly is controlled to provide a first magnetic force that matches the required rotational speed.

[0135] Optionally, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes:

[0136] Acquiring real-time rotation speed and / or second real-time position information and / or vibration information of the rotor assembly;

[0137] The magnitude and / or direction of the first magnetic force provided by the stator assembly is adjusted according to the real-time rotation speed and / or the second real-time position information and / or vibration information.

[0138] Optionally, after controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes:

[0139] Acquiring temperature information of the stator assembly;

[0140] According to the temperature information, the magnitude of the first magnetic force provided by the stator component is adjusted or the stator component is controlled to stop providing the first magnetic force.

[0141] Optionally, the operation request information includes one of normal refrigeration operation request information, rapid refrigeration operation request information and defrost operation request information.

[0142] The above is a detailed introduction to a refrigerator and its control method, device and storage medium provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A refrigerator control method, characterized in that: The refrigerator comprises a heat exchanger and a fan module; the fan module is configured to guide the gas to exchange heat with the heat exchanger; the fan module comprises a stator assembly, a rotor assembly and an impeller assembly; the stator assembly is magnetically suspended and connected to the rotor assembly; the impeller assembly is fixedly connected to the rotor assembly; the control method comprises: Controlling the rotor assembly to be in a preset suspension state; Obtaining operation request information of the refrigerator; Determining a required rotation speed of the impeller assembly according to the operation request information; According to the required rotational speed, the stator assembly is controlled to provide a first magnetic force adapted to the required rotational speed, so that the rotor assembly rotates and drives the impeller assembly to rotate at the required rotational speed.

2. The control method according to claim 1, characterized in that: The controlling the rotor assembly to be in a preset suspension state comprises: Obtaining a current operating state of the rotor assembly; If the current running state of the rotor assembly is a stationary state, obtaining current position information of the rotor assembly; According to the current position information, the stator assembly is controlled to provide a second magnetic force until the rotor assembly is in a preset suspension position.

3. The control method according to claim 2, characterized in that: According to the current position information, controlling the stator assembly to provide a second magnetic force until the rotor assembly is in a preset suspension position comprises: Controlling the second magnetic force provided by the stator assembly to gradually increase; Acquiring first real-time position information of the rotor assembly; determining whether the rotor assembly is in the preset suspension position according to the first real-time position information; If not, continue to control the second magnetic force provided by the stator assembly to gradually increase until the rotor assembly is in the preset suspension position; If so, the following steps are performed: according to the required rotational speed, the stator assembly is controlled to provide a first magnetic force that matches the required rotational speed.

4. The control method according to claim 1, characterized in that: After controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes: Acquiring real-time rotation speed and / or second real-time position information and / or vibration information of the rotor assembly; The magnitude and / or direction of the first magnetic force provided by the stator assembly is adjusted according to the real-time rotation speed and / or the second real-time position information and / or vibration information.

5. The control method according to claim 1, characterized in that: After controlling the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, the control method further includes: Acquiring temperature information of the stator assembly; According to the temperature information, the magnitude of the first magnetic force provided by the stator component is adjusted or the stator component is controlled to stop providing the first magnetic force.

6. The control method according to claim 1, characterized in that: The operation request information includes one of normal cooling operation request information, rapid cooling operation request information and defrosting operation request information.

7. A refrigerator control device, characterized in that: The refrigerator comprises a heat exchanger and a fan module; the fan module is configured to guide the gas to exchange heat with the heat exchanger; the fan module comprises a stator assembly, a rotor assembly and an impeller assembly; the stator assembly is magnetically suspended and connected to the rotor assembly; the impeller assembly is fixedly connected to the rotor assembly; the control device comprises: A control module, used for controlling the rotor assembly to be in a preset suspension state; An acquisition module, used for acquiring operation request information of the refrigerator; A determination module, configured to determine a required rotation speed of the impeller assembly according to the operation request information; The control module is used to control the stator assembly to provide a first magnetic force adapted to the required speed according to the required speed, so as to rotate the rotor assembly and drive the impeller assembly to rotate at the required speed.

8. A refrigerator, characterized in that: The impeller assembly is fixedly connected to the rotor assembly; and the controller is configured to execute the refrigerator control method according to any one of claims 1 to 6.

9. The refrigerator according to claim 8, characterized in that: The stator assembly includes a plurality of electromagnets, which are arranged at intervals along the rotation direction of the rotor assembly; the rotor assembly includes a permanent magnet, which, when the plurality of electromagnets are energized, causes the rotor assembly to be in a suspended state and drives the impeller assembly to rotate; and / or The heat exchanger includes a condenser or an evaporator.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the refrigerator control method according to any one of claims 1 to 6.

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