Control method and device of refrigeration equipment and refrigeration equipment
By setting up temperature and timing modules in the refrigeration equipment and combining multiple data to determine solenoid valve failure, the problem of poor refrigeration effect caused by solenoid valve jamming is solved, accurate fault judgment and timely repair are achieved, and the user experience is improved.
Patent Information
- Application Number
- CN202510939050.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-08
- Publication Date
- 2025-09-09
AI Technical Summary
The solenoid valves in dual-system refrigeration equipment become stuck due to impurity accumulation, affecting the cooling effect. Existing technology makes it difficult to accurately determine the fault type and handle it in a timely manner.
By setting up a temperature acquisition module and a timing module in the refrigeration equipment, the temperature and working time of the refrigerated compartment, freezer compartment and evaporator are collected, and the type of solenoid valve switching fault is determined by combining multiple data, and maintenance information is generated and sent to the maintenance center.
It improves the accuracy of fault diagnosis and user experience, ensures the normal operation of refrigeration equipment, and reduces the problem of poor refrigeration effect caused by solenoid valve jamming.
Smart Images
Figure CN120609183A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of refrigeration equipment, and in particular to a control method and device for refrigeration equipment, and refrigeration equipment. Background Art
[0002] For dual-system refrigeration equipment, the refrigerator compartment and the freezer compartment each have independent evaporators and capillaries. The refrigeration system switching is achieved through a solenoid valve, so the solenoid valve is the core component of the dual-system refrigeration equipment.
[0003] However, since the compressor, refrigeration pipelines and other components contain impurities (especially iron filings), although the entire refrigeration system will first remove impurities through the drying filter during operation, some fine impurities will still be brought to the solenoid valve and accumulate. Excessive impurities will cause the solenoid valve to get stuck and not switch, thereby affecting the cooling effect of the refrigeration equipment and the user experience. Summary of the Invention
[0004] In view of this, the object of the present invention is to provide a control method, device and refrigeration equipment for refrigeration equipment. The present invention determines the switching fault type of the solenoid valve in the refrigeration equipment based on the temperature of the refrigeration compartment, the temperature of the freezer compartment, the temperature of the evaporator and the duration of the working state of the refrigeration equipment, thereby avoiding the judgment error caused by a single data and improving the accuracy of fault judgment. After determining the relevant switching fault type of the solenoid valve in the refrigeration equipment, corresponding maintenance information will be generated and sent to a maintenance center that communicates with the refrigeration equipment, so that users can obtain maintenance information in a timely manner, thereby improving the fault handling capability and improving the user experience.
[0005] According to a first aspect of the present invention, a control method for refrigeration equipment is provided, which is applied to a control module in the refrigeration equipment, wherein the refrigeration equipment further includes a first temperature acquisition module, a second temperature acquisition module, an evaporator temperature acquisition module, and a timing module. The first temperature acquisition module is arranged in the refrigeration compartment of the refrigeration equipment for detecting the temperature of the refrigeration compartment, the second temperature acquisition module is arranged in the freezer compartment of the refrigeration equipment for detecting the temperature of the freezer compartment, the evaporator temperature acquisition module is arranged adjacent to the evaporator in the refrigeration equipment for detecting the temperature of the evaporator, the timing module is arranged inside the refrigeration equipment for timing various working states of the refrigeration equipment, and the control module and the first temperature acquisition module are connected. The module, the second temperature acquisition module, the evaporator temperature acquisition module and the timing module are electrically connected, and the method includes: acquiring a first temperature of the refrigerated compartment acquired by the first temperature acquisition module; acquiring a second temperature of the evaporator acquired by the evaporator temperature acquisition module; acquiring a third temperature of the freezer compartment acquired by the second temperature acquisition module; acquiring a duration of the working state of the refrigeration device acquired by the timing module; determining a switching fault type of a solenoid valve in the refrigeration device based on the first temperature, the second temperature, the third temperature and the duration; generating maintenance information based on the switching fault type of the solenoid valve in the refrigeration device, and sending the maintenance information to a maintenance center in communication with the refrigeration device.
[0006] In a possible implementation manner of the first aspect, the duration includes a first duration, a second duration, a third duration and a fourth duration, the first duration is the duration corresponding to the refrigeration device when the first temperature is greater than or equal to the first temperature threshold corresponding to the first temperature, the second duration is the duration corresponding to the refrigeration device when the second temperature is greater than the second temperature threshold corresponding to the second temperature, the third duration is the duration corresponding to the refrigeration device when the first temperature is less than or equal to the third temperature threshold corresponding to the first temperature, the fourth duration is the duration corresponding to the refrigeration device when the second temperature is less than or equal to the fourth temperature threshold corresponding to the second temperature, the first temperature threshold is different from the third temperature threshold, and the second temperature threshold is different from the fourth temperature threshold, and the determining of the switching fault type of the solenoid valve in the refrigeration device based on the first temperature, the second temperature, the third temperature and the duration includes: comparing the size relationship between the first temperature and the first temperature threshold and the second temperature and the second temperature threshold; if the first temperature is greater than or equal to the first temperature threshold, the second If the temperature is greater than the second temperature threshold and the third temperature is within a preset temperature range, the first duration is compared with a first duration threshold corresponding to the first duration, and the second duration is compared with a second duration threshold corresponding to the second duration. If the first duration is greater than the first duration threshold and the second duration is greater than the second duration threshold, it is determined that the switching fault type of the solenoid valve in the refrigeration device is abnormal switching of the refrigeration compartment. The first temperature is compared with the third temperature threshold and the second temperature is compared with the fourth temperature threshold. If the first temperature is less than or equal to the third temperature threshold and the second temperature is less than or equal to the fourth temperature threshold, the third duration is compared with a third duration threshold corresponding to the third duration, and the fourth duration is compared with a fourth duration threshold corresponding to the fourth duration. If the third duration is greater than the third duration threshold and the fourth duration is greater than the fourth duration threshold, it is determined that the switching fault type of the solenoid valve in the refrigeration device is abnormal switching of the freezer compartment.
[0007] In a possible implementation of the first aspect, the step of generating maintenance information according to the switching fault type of the solenoid valve in the refrigeration equipment and sending the maintenance information to a maintenance center communicating with the refrigeration equipment includes: if the switching fault type of the solenoid valve in the refrigeration equipment is a refrigerated compartment switching abnormality, generating first maintenance information according to the refrigerated compartment switching abnormality, and sending the first maintenance information to the maintenance center communicating with the refrigeration equipment; if the switching fault type of the solenoid valve in the refrigeration equipment is a freezer compartment switching abnormality, obtaining the working status of the compressor in the refrigeration equipment, wherein the working status includes a power-on status and a power-off status; according to the working status of the compressor, adjusting the working status of the compressor and / or the working mode of the refrigeration fan in the refrigeration equipment, and generating second maintenance information according to the freezer compartment switching abnormality, and sending the second maintenance information to the maintenance center communicating with the refrigeration equipment, wherein the working mode of the refrigeration fan includes a frost suppression mode and a refrigeration mode.
[0008] In a possible implementation of the first aspect, the step of adjusting the working state of the compressor and / or the working state of the refrigeration fan in the refrigeration equipment according to the working state of the compressor includes: if the working state of the compressor is the on state, adjusting the speed gear of the compressor and adjusting the working mode of the refrigeration fan in the refrigeration equipment to the frost suppression mode; if the working state of the compressor is the off state, obtaining the fourth temperature of the refrigerated compartment collected by the first temperature collection module; and adjusting the working mode of the refrigeration fan according to the fourth temperature.
[0009] In a possible implementation of the first aspect, if the working state of the compressor is the on state, the step of adjusting the speed gear of the compressor includes: obtaining the current speed gear of the compressor; if the working state of the compressor is the on state, increasing the speed gear of the compressor based on the current gear.
[0010] In a possible implementation of the first aspect, the step of determining the working state of the refrigeration fan and the opening and closing state of the damper based on the fourth temperature includes: comparing the fourth temperature with a fifth temperature threshold corresponding to the fourth temperature; if the fourth temperature is greater than or equal to the fifth temperature threshold, adjusting the working state of the refrigeration fan to a cooling mode, and controlling the refrigeration damper to be in an open state, until the fourth temperature is less than the fifth temperature threshold, then controlling the refrigeration fan to be in a stopped state, and controlling the refrigeration damper to be in a closed state.
[0011] In a possible implementation of the first aspect, before the step of acquiring the first temperature of the refrigerated compartment acquired by the first temperature acquisition module, the method further includes: acquiring a working state of the refrigerated compartment, wherein the working state of the refrigerated compartment includes an enabled state and a function-off state; and the step of acquiring the first temperature of the refrigerated compartment acquired by the first temperature acquisition module includes: if the working state of the refrigerated compartment is the enabled state, acquiring the first temperature of the refrigerated compartment acquired by the first temperature acquisition module.
[0012] According to a second aspect of the present invention, a control device for refrigeration equipment is provided, which is applied to a control module in the refrigeration equipment, wherein the refrigeration equipment further includes a first temperature acquisition module, a second temperature acquisition module, an evaporator temperature acquisition module and a timing module, wherein the first temperature acquisition module is arranged in the refrigeration compartment of the refrigeration equipment and is used to detect the temperature of the refrigeration compartment, the second temperature acquisition module is arranged in the freezer compartment of the refrigeration equipment and is used to detect the temperature of the freezer compartment, the evaporator temperature acquisition module is arranged adjacent to the evaporator in the refrigeration equipment and is used to detect the temperature of the evaporator, the timing module is arranged inside the refrigeration equipment and is used to time various working states of the refrigeration equipment, and the control module is connected to the first temperature acquisition module, the second temperature acquisition module, the evaporator temperature acquisition module and The timing module is electrically connected, and the device includes: a first acquisition unit, used to acquire a first temperature of the refrigeration compartment acquired by the first temperature acquisition module; a second acquisition unit, used to acquire a second temperature of the evaporator acquired by the evaporator temperature acquisition module; a third acquisition unit, used to acquire a third temperature of the freezer compartment acquired by the second temperature acquisition module; a fourth acquisition unit, used to acquire a duration of the working state of the refrigeration device acquired by the timing module; a fault judgment unit, used to judge a switching fault type of the solenoid valve in the refrigeration device based on the first temperature, the second temperature, the third temperature and the duration; and an information sending unit, used to generate maintenance information according to the switching fault type of the solenoid valve in the refrigeration device, and send the maintenance information to a maintenance center in communication with the refrigeration device.
[0013] In a possible implementation of the second aspect, the fault judgment unit includes: a first comparison subunit, used to compare the size relationship between the first temperature and the first temperature threshold and the second temperature and the second temperature threshold; a second comparison subunit, used to compare the size relationship between the first duration and the first duration threshold corresponding to the first duration, and compare the size relationship between the second duration and the second duration threshold corresponding to the second duration if the first temperature is greater than or equal to the first temperature threshold, the second temperature is greater than the second temperature threshold, and the third temperature is within a preset temperature range; a first determination subunit, used to determine that the refrigeration equipment is faulty if the first duration is greater than the first duration threshold and the second duration is greater than the second duration threshold. The switching fault type of the solenoid valve in the refrigeration equipment is abnormal switching of the refrigerator compartment; the third comparing subunit is used to compare the size relationship between the first temperature and the third temperature threshold and between the second temperature and the fourth temperature threshold; the fourth comparing subunit is used to compare the size relationship between the third duration and the third duration threshold corresponding to the third duration, and to compare the size relationship between the fourth duration and the fourth duration threshold corresponding to the fourth duration if the first temperature is less than or equal to the third temperature threshold and the second temperature is less than or equal to the fourth temperature threshold; the second determining subunit is used to determine that the switching fault type of the solenoid valve in the refrigeration equipment is abnormal switching of the freezer compartment if the third duration is greater than the third duration threshold and the fourth duration is greater than the fourth duration threshold.
[0014] According to a third aspect of the present invention, a refrigeration device is provided, comprising: a first temperature acquisition module, the first temperature acquisition module being disposed in a refrigeration compartment of the refrigeration device and configured to detect the temperature of the refrigeration compartment; a second temperature acquisition module being disposed in a freezer compartment of the refrigeration device and configured to detect the temperature of the freezer compartment; an evaporator temperature acquisition module being disposed adjacent to an evaporator in the refrigeration device and configured to detect the temperature of the evaporator; a timing module being disposed within the refrigeration device and configured to time various operating states of the refrigeration device; and a control module being electrically connected to the first temperature acquisition module, the second temperature acquisition module, the evaporator temperature acquisition module, and the timing module, the control module being configured to execute the control method for the refrigeration device according to any possible implementation manner of the first aspect.
[0015] Based on any one of the above aspects, an embodiment of the present invention provides a control method and device for refrigeration equipment, and refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 A schematic flow chart of the steps of a method for controlling a refrigeration device according to one embodiment of the present invention; Figure 2 A schematic flow chart of the steps of a method for controlling a refrigeration device according to another embodiment of the present invention; Figure 3 A schematic diagram of the functional modules of the control device for the refrigeration equipment provided in this embodiment; Figure 4 This is a schematic diagram of the functional modules of the refrigeration equipment provided in this embodiment. DETAILED DESCRIPTION
[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.
[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0021] In the description of the present invention, it should be noted that the terms "upper" and "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.
[0022] It should be noted that, in the absence of conflict, different features in the embodiments of the present invention may be combined with each other.
[0023] In order to solve the technical problems mentioned in the above background technology, the inventors innovatively designed the following technical solutions, and the specific implementation solutions of the present invention will be described in detail below with reference to the accompanying drawings.
[0024] See Figure 1 , Figure 1 A schematic flow chart of the steps of a control method for a refrigeration device provided in one embodiment of the present invention is provided. The control method for the refrigeration device is applied to a control module in the refrigeration device. The refrigeration device further includes a first temperature acquisition module, a second temperature acquisition module, an evaporator temperature acquisition module, and a timing module. The first temperature acquisition module is arranged in the refrigeration chamber of the refrigeration device for detecting the temperature of the refrigeration compartment. The second temperature acquisition module is arranged in the freezer chamber of the refrigeration device for detecting the temperature of the freezer compartment. The evaporator temperature acquisition module is arranged adjacent to the evaporator in the refrigeration device for detecting the temperature of the evaporator. The first temperature acquisition module, the second temperature acquisition module, and the evaporator temperature acquisition module include at least one temperature sensor for collecting temperature. The first temperature acquisition module, the second temperature acquisition module, and the evaporator temperature acquisition module can be the same temperature acquisition module or different temperature acquisition modules. The timing module is arranged inside the refrigeration device for timing the various working states of the refrigeration device. The control module is electrically connected to the first temperature acquisition module, the second temperature acquisition module, the evaporator temperature acquisition module, and the timing module. The refrigeration device can be a refrigerator, a freezer, or other refrigeration equipment. The following will focus on Figure 1 The control method of the refrigeration equipment may specifically include the following steps: Step S110: Acquire the first temperature of the refrigerated compartment collected by the first temperature collection module.
[0025] The first temperature acquisition module may collect data at a preset data collection time, which may be a preset collection interval. The first temperature acquisition module may collect the temperature of the refrigerated compartment every preset collection interval. The first temperature acquisition module may also collect data in real time or after receiving a data processing instruction from the user.
[0026] Step S120: Acquire the second temperature of the evaporator collected by the evaporator temperature collection module.
[0027] The time for collecting the temperature of the evaporator by the evaporator temperature collection module may be the same as or different from the time for collecting the temperature of the first temperature collection module, which is not limited here.
[0028] Step S130: Acquire the third temperature of the freezing compartment collected by the second temperature collection module.
[0029] The time for the second temperature acquisition module to acquire the temperature of the freezing compartment may be the same as or different from the time for the first temperature acquisition module and the evaporator temperature acquisition module to acquire the temperature, which is not limited here.
[0030] Step S140: Acquire the duration of the working state of the refrigeration equipment collected by the timing module.
[0031] The timing module may collect the duration of the refrigeration equipment being in the power-on working state, the duration of the refrigeration equipment being in the cooling working state, or the duration of other working states of the refrigeration equipment.
[0032] Step S150: determining the switching fault type of the solenoid valve in the refrigeration equipment according to the first temperature, the second temperature, the third temperature, and the duration.
[0033] Switching failure types include, but are not limited to, abnormal switching to the refrigerator compartment and abnormal switching to the freezer compartment. A switching failure to the refrigerator compartment indicates that the solenoid valve cannot switch to the refrigerator compartment, resulting in a failure to properly cool the refrigerator compartment. A switching failure to the freezer compartment indicates that the solenoid valve cannot switch to the freezer compartment, resulting in a failure to properly cool the freezer compartment and overcooling the freezer compartment.
[0034] Furthermore, the type of switching fault of the solenoid valve in the refrigeration equipment can be determined based on the first temperature, the second temperature, the third temperature, and the duration. When the duration is greater than a duration threshold corresponding to the duration, the solenoid valve switching fault type is determined to be a refrigeration compartment abnormality; when the duration is less than the duration threshold, the solenoid valve switching fault type is determined to be a freezer compartment switching fault. Alternatively, the determination method may be to compare the first temperature with a first temperature threshold corresponding to the first temperature, the second temperature with a second temperature threshold corresponding to the second temperature, and the third temperature with a third temperature threshold corresponding to the third temperature. When the first temperature is greater than or equal to the first temperature threshold, the second temperature is greater than or equal to the second temperature threshold, and the third temperature is greater than or equal to the third temperature threshold, and the preset duration is greater than or equal to the preset duration threshold, the solenoid valve switching fault type is determined to be a refrigeration compartment abnormality; when the duration is less than the duration threshold, the solenoid valve switching fault type is determined to be a freezer compartment switching fault. The method for determining the type of switching fault of the solenoid valve can be set based on actual circumstances and is not limited herein.
[0035] Step S160: Generate maintenance information according to the switching fault type of the solenoid valve in the refrigeration equipment, and send the maintenance information to a maintenance center that communicates with the refrigeration equipment.
[0036] In this embodiment, the maintenance information includes, but is not limited to, the switching fault type, maintenance method, and fault occurrence time. Sending this maintenance information to a maintenance center that communicates with the refrigeration equipment allows maintenance personnel to obtain fault information immediately and take repair actions, thereby improving the user experience of the refrigeration equipment.
[0037] The solution provided by the present invention determines the switching fault type of the solenoid valve in the refrigeration equipment based on the temperature of the refrigeration compartment, the temperature of the freezer compartment, the temperature of the evaporator and the duration of the working state of the refrigeration equipment, thereby avoiding the judgment error caused by a single data and improving the accuracy of the fault judgment. Moreover, after determining the relevant switching fault type of the solenoid valve in the refrigeration equipment, corresponding maintenance information is also generated and sent to a maintenance center that communicates with the refrigeration equipment, so that the user can obtain the maintenance information in a timely manner, thereby improving the fault handling capability and improving the user experience.
[0038] See Figure 2 , Figure 2 A flow chart showing the steps of a control method for a refrigeration device according to another embodiment of the present invention is provided below. Figure 2 The control method of the refrigeration equipment may specifically include the following steps: Step S201: Acquire the working status of the refrigeration compartment.
[0039] The working status of the refrigeration compartment includes an enabled state and a function disabled state.
[0040] Step S202: If the working state of the refrigeration compartment is the enabled state, a first temperature of the refrigeration compartment collected by a first temperature collection module is obtained.
[0041] Step S203: Acquire the second temperature of the evaporator collected by the evaporator temperature collection module.
[0042] Step S204: acquiring the third temperature of the freezing compartment collected by the second temperature collection module.
[0043] Step S205: Acquire the duration of the working state of the refrigeration equipment collected by the timing module.
[0044] In this embodiment, data is collected when the refrigeration compartment is in the active state, which ensures the accuracy of subsequent data collection and the accuracy of solenoid valve fault diagnosis. When the refrigeration compartment is in the active state, the detailed description of steps S202 to S205 can be found in the detailed description of steps S110 to S140 and will not be repeated here.
[0045] Furthermore, the duration includes a first duration, a second duration, a third duration and a fourth duration. The first duration is the duration corresponding to the refrigeration device when the first temperature is greater than or equal to the first temperature threshold corresponding to the first temperature. The second duration is the duration corresponding to the refrigeration device when the second temperature is greater than the second temperature threshold corresponding to the second temperature. The third duration is the duration corresponding to the refrigeration device when the first temperature is less than or equal to the third temperature threshold corresponding to the first temperature. The fourth duration is the duration corresponding to the refrigeration device when the second temperature is less than or equal to the fourth temperature threshold corresponding to the second temperature. The first temperature threshold is different from the third temperature threshold, and the second temperature threshold is different from the fourth temperature threshold.
[0046] Step S206: comparing the first temperature with the first temperature threshold and the second temperature with the second temperature threshold.
[0047] Step S207: If the first temperature is greater than or equal to the first temperature threshold, the second temperature is greater than the second temperature threshold, and the third temperature is within the preset temperature range, compare the first duration with the first duration threshold corresponding to the first duration, and compare the second duration with the second duration threshold corresponding to the second duration.
[0048] Step S208: If the first duration is greater than the first duration threshold, and the second duration is greater than the second duration threshold, it is determined that the switching fault type of the solenoid valve in the refrigeration equipment is abnormal refrigeration compartment switching.
[0049] In this embodiment, if the first temperature of the refrigerating compartment is greater than or equal to the first temperature threshold, the first duration for which the first temperature is greater than or equal to the first temperature threshold is greater than the first duration threshold, the second temperature of the evaporator is greater than or equal to the second temperature threshold, the second duration for which the second temperature is greater than or equal to the second temperature threshold is greater than the second duration threshold, and the third temperature of the freezer compartment is within a preset temperature range, it indicates that the refrigerating compartment is cooling normally, but the refrigerating compartment is cooling abnormally. In this case, the switching fault type of the solenoid valve is determined to be abnormal refrigerating compartment switching.
[0050] For example, assuming the first temperature threshold is 8°C, the second temperature threshold is 0°C, the preset temperature threshold range is [-18°C, -10°C], the first duration threshold is 6 hours, and the second duration threshold is 6 hours. If the first temperature is 10°C, the first temperature is 10°C for a duration greater than 6 hours, the second temperature is 1°C, the second temperature is 1°C for a duration greater than 6 hours, and the third temperature is -12°C, the solenoid valve switching fault type is determined to be a refrigerated compartment switching abnormality.
[0051] Step S209: comparing the first temperature with the third temperature threshold and the second temperature with the fourth temperature threshold.
[0052] Step S210: If the first temperature is less than or equal to the third temperature threshold, and the second temperature is less than or equal to the fourth temperature threshold, compare the third duration with the third duration threshold corresponding to the third duration, and compare the fourth duration with the fourth duration threshold corresponding to the fourth duration.
[0053] Step S211: If the third duration is greater than the third duration threshold, and the fourth duration is greater than the fourth duration threshold, it is determined that the switching fault type of the solenoid valve in the refrigeration equipment is abnormal freezing compartment switching.
[0054] In this embodiment, if the first temperature of the refrigerating compartment is less than or equal to the third temperature threshold, the third duration during which the first temperature is less than or equal to the third temperature threshold is greater than the third duration threshold, and the second temperature of the evaporator is less than or equal to the fourth temperature threshold, and the second duration during which the second temperature is less than or equal to the fourth temperature threshold is greater than the fourth duration threshold, then it is indicated that the refrigeration of the freezer compartment is normal, but the refrigerating compartment is abnormal, and the refrigerating compartment is over-cooled. In this case, the switching fault type of the solenoid valve is determined to be abnormal switching of the freezer compartment.
[0055] For example, if the third temperature threshold is 0°C, the fourth temperature threshold is -10°C, the third duration threshold is 3 hours, and the fourth duration threshold is 3 hours, when the third temperature is -2°C and the duration of the third temperature at -2°C is greater than 3 hours, and the fourth temperature is -12°C and the duration of the fourth temperature at -12°C is greater than 3 hours, the switching fault type of the solenoid valve is determined to be a freezer compartment switching abnormality.
[0056] Step S212: If the switching fault type of the solenoid valve in the refrigeration equipment is refrigeration compartment switching abnormality, first maintenance information is generated according to the refrigeration compartment switching abnormality, and the first maintenance information is sent to a maintenance center communicating with the refrigeration equipment.
[0057] In this embodiment, the first maintenance information may include information such as the switching fault type of the solenoid valve, the time when the fault occurs, and the fault resolution method.
[0058] Furthermore, to enhance the user experience with the refrigeration appliance, relevant information can be displayed to the user, for example, on a display screen on the refrigeration appliance. The relevant information can also be sent to an application on the user's mobile device that communicates with the refrigeration appliance. Mobile devices include, but are not limited to, smartphones, tablets, and smartwatches.
[0059] For example, the display screen prompts the user that a solenoid valve in the refrigeration equipment is faulty, and the fault is abnormal switching of the refrigerator compartment, while the freezer compartment is in normal condition. Please empty the food in the refrigerator compartment as soon as possible.
[0060] Step S213: If the switching fault type of the solenoid valve in the refrigeration equipment is abnormal switching of the freezing compartment, the working state of the compressor in the refrigeration equipment is obtained.
[0061] The working state includes the power-on state and the power-off state.
[0062] Step S214: adjusting the working state of the compressor and / or the working mode of the refrigeration fan in the refrigeration equipment according to the working state of the compressor, generating second maintenance information according to the abnormal switching of the freezing compartment, and sending the second maintenance information to the maintenance center communicating with the refrigeration equipment.
[0063] Among them, the working modes of the refrigeration fan include frost suppression mode and cooling mode.
[0064] In this embodiment, when the solenoid valve switching fault type is a freezer compartment switching abnormality, it indicates that excessive cold air is flowing into the refrigerator compartment. To ensure normal use of the refrigerator compartment in the event of a freezer compartment switching fault, when excessive cold air enters the refrigerator compartment, the operating state of the compressor and / or the operating mode of the refrigerator fan are adjusted to reduce the amount of cold air in the refrigerator compartment.
[0065] For example, to ensure the normal use of the refrigeration compartment, the working mode of the refrigeration fan can be switched from the cooling mode to the frost suppression mode, thereby reducing the cold air in the refrigeration compartment.
[0066] In some embodiments, the step of adjusting the operating state of the compressor and / or the operating state of a refrigeration fan in the refrigeration equipment based on the operating state of the compressor includes: if the operating state of the compressor is on, adjusting the speed level of the compressor and adjusting the operating mode of the refrigeration fan in the refrigeration equipment to a frost suppression mode. If the operating state of the compressor is off, obtaining a fourth temperature of the refrigerated compartment collected by the first temperature collection module. Based on the fourth temperature, adjusting the operating mode of the refrigeration fan.
[0067] In this embodiment, adjusting the compressor speed gear can speed up or slow down the circulation of the intercooled air in the compressor. The compressor speed gear can be adjusted based on the current speed gear to increase or decrease, or the startup speed gear can be adjusted when the compressor starts working.
[0068] Specifically, if the operating state of the compressor is the on state, the step of adjusting the speed gear of the compressor includes: obtaining the current speed gear of the compressor. If the operating state of the compressor is the on state, increasing the speed gear of the compressor based on the current gear.
[0069] Furthermore, the step of determining the operating state of the refrigeration fan and the open / close state of the damper based on the fourth temperature includes comparing the fourth temperature with a fifth temperature threshold corresponding to the fourth temperature. If the fourth temperature is greater than or equal to the fifth temperature threshold, adjusting the operating state of the refrigeration fan to a cooling mode and controlling the refrigeration damper to be in an open state. The step of determining the operating state of the refrigeration fan and the open / close state of the damper based on the fourth temperature includes comparing the fourth temperature with a fifth temperature threshold corresponding to the fourth temperature. If the fourth temperature is greater than or equal to the fifth temperature threshold, adjusting the operating state of the refrigeration fan to a cooling mode and controlling the refrigeration damper to be in an open state. If the fourth temperature is less than the fifth temperature threshold, the refrigeration fan is controlled to be in a stopped state and the refrigeration damper is controlled to be in a closed state.
[0070] In this embodiment, the refrigeration damper is used to control the flow of cold air entering the refrigeration compartment. When the solenoid valve switching fault type is a freezer compartment switching fault, to ensure normal operation of the refrigeration compartment, and because the compressor is in the off state, indicating that no cold air is being generated and circulated within the refrigeration equipment, the refrigeration damper can be opened and closed to circulate cold air within the refrigeration compartment to improve the efficiency of natural defrosting of the evaporator in the refrigeration compartment. When the fourth temperature in the refrigeration compartment is greater than or equal to the fifth temperature threshold, the refrigeration damper is controlled to remain open to increase the flow of cold air into the refrigeration compartment. The refrigeration damper is closed when the fourth temperature falls below the fifth temperature threshold.
[0071] It is understandable that the fifth temperature threshold may be a threshold set manually, or may be the shutdown point temperature of the refrigeration compartment, and may also be set according to actual conditions.
[0072] For example, taking the fifth temperature threshold of 2°C as an example, when the fourth temperature of the refrigerated compartment is 5°C, the refrigerated damper is controlled to be in an open state to increase the flow of cold air in the refrigerated compartment. When the fourth temperature of the refrigerated compartment is less than 2°C, the refrigerated damper is controlled to be in a closed state.
[0073] The solution provided by the present invention determines the switching fault type of the solenoid valve in the refrigeration equipment based on the temperature of the refrigeration compartment, the temperature of the freezer compartment, the temperature of the evaporator, and the duration of the working state of the refrigeration equipment when the working state of the refrigeration compartment is enabled, thereby avoiding the judgment error caused by a single data and improving the accuracy of the fault judgment. Moreover, after determining the relevant switching fault type of the solenoid valve in the refrigeration equipment, corresponding maintenance information is also generated and sent to a maintenance center that communicates with the refrigeration equipment, so that the user can obtain the maintenance information in a timely manner, thereby improving the fault handling capability and improving the user experience.
[0074] Based on the same inventive concept, see Figure 3 , Figure 3 This embodiment provides a schematic diagram of the functional modules of a control device for a refrigeration device. This embodiment can divide the functional modules of the control device 100 for the refrigeration device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present invention is schematic and is only a logical functional division. There may be other division methods for actual implementation. For example, in the case of dividing each functional module according to each function, Figure 3 The control device 100 for a refrigeration device shown is merely a schematic diagram. The control module employed in the refrigeration device further includes a first temperature acquisition module, a second temperature acquisition module, an evaporator temperature acquisition module, and a timing module. The first temperature acquisition module is located in the refrigeration compartment of the refrigeration device and is used to detect the temperature of the refrigeration compartment. The second temperature acquisition module is located in the freezer compartment of the refrigeration device and is used to detect the temperature of the freezer compartment. The evaporator temperature acquisition module is located adjacent to the evaporator within the refrigeration device and is used to detect the evaporator temperature. The timing module is located within the refrigeration device and is used to time the various operating states of the refrigeration device. The control module is electrically connected to the first temperature acquisition module, the second temperature acquisition module, the evaporator temperature acquisition module, and the timing module. The functions of each functional module of the control device 100 for the refrigeration device are described in detail below.
[0075] The first acquisition unit 110, in this embodiment, can be used to perform Figure 1 As shown in step S110 , for a detailed description of the first obtaining unit 110 , please refer to the description of step S110 .
[0076] The second acquisition unit 120, in this embodiment, can be used to perform Figure 1 As shown in step S120, for a detailed description of the second obtaining unit 120, please refer to the description of step S120.
[0077] The third acquisition unit 130, in this embodiment, the third acquisition unit 130 can be used to perform Figure 1 As shown in step S130, for a detailed description of the third obtaining unit 130, please refer to the description of step S130.
[0078] The fourth acquisition unit 140, in this embodiment, the fourth acquisition unit 140 can be used to perform Figure 1 As shown in step S140, for a detailed description of the fourth obtaining unit 140, please refer to the description of step S140.
[0079] Fault judgment unit 150, in this embodiment, the fault judgment unit 150 can be used to perform Figure 1 As shown in step S150 , for a detailed description of the fault judgment unit 150 , please refer to the description of step S150 .
[0080] Information sending unit 160, in this embodiment, the information sending unit 160 can be used to execute Figure 1 As shown in step S160, for a detailed description of the information sending unit 160, please refer to the description of step S160.
[0081] Specifically, the duration includes a first duration, a second duration, a third duration and a fourth duration. The first duration is the duration corresponding to the refrigeration device when the first temperature is greater than or equal to the first temperature threshold corresponding to the first temperature, the second duration is the duration corresponding to the refrigeration device when the second temperature is greater than the second temperature threshold corresponding to the second temperature, the third duration is the duration corresponding to the refrigeration device when the first temperature is less than or equal to the third temperature threshold corresponding to the first temperature, and the fourth duration is the duration corresponding to the refrigeration device when the second temperature is less than or equal to the fourth temperature threshold corresponding to the second temperature. The first temperature threshold is different from the third temperature threshold, and the second temperature threshold is different from the fourth temperature threshold. The fault judgment unit includes: a first comparison subunit, used to compare the size relationship between the first temperature and the first temperature threshold and the second temperature and the second temperature threshold; a second comparison subunit, used to compare the first duration with the first duration if the first temperature is greater than or equal to the first temperature threshold, the second temperature is greater than the second temperature threshold, and the third temperature is within a preset temperature range. a first determining subunit for determining, if the first duration is greater than the first duration threshold and the second duration is greater than the second duration threshold, a switching fault type of the solenoid valve in the refrigeration device is a refrigeration compartment switching abnormality; a third comparing subunit for comparing, if the first temperature is less than or equal to the third temperature threshold and the second temperature is less than or equal to the fourth temperature threshold, a size relationship between the third duration and the third duration threshold corresponding to the third duration, and a size relationship between the fourth duration and the fourth duration threshold corresponding to the fourth duration; a second determining subunit for determining, if the third duration is greater than the third duration threshold and the fourth duration is greater than the fourth duration threshold, a switching fault type of the solenoid valve in the refrigeration device is a freezer compartment switching abnormality.
[0082] Based on the same inventive concept, see Figure 4 , Figure 4The present embodiment provides a schematic diagram of the functional modules of a refrigeration device 10. The present embodiment can divide the functional modules of the refrigeration device 10 according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present invention is schematic and is only a logical functional division. There may be other division methods for actual implementation. For example, in the case of dividing each functional module according to each function, Figure 4 The refrigeration device 10 shown is only a schematic diagram of a device. The refrigeration device includes a first temperature acquisition module 11 , a second temperature acquisition module 12 , an evaporator temperature acquisition module 13 , a timing module 14 and a control module 15 .
[0083] A first temperature acquisition module 11 is provided in the refrigeration compartment of the refrigeration equipment and is used to detect the temperature of the refrigeration compartment; A second temperature acquisition module 12 is provided in the freezer compartment of the refrigeration equipment and is used to detect the temperature of the freezer compartment; The evaporator temperature acquisition module 13 is provided adjacent to the evaporator in the refrigeration equipment and is used to detect the temperature of the evaporator; The timing module 14 is provided inside the refrigeration equipment and is used to time various working states of the refrigeration equipment; The control module 15 is electrically connected to the first temperature acquisition module 11, the second temperature acquisition module 12, the evaporator temperature acquisition module 13 and the timing module 14. The control module 15 is used to execute the control method of the refrigeration equipment provided in any embodiment of the present application.
[0084] Furthermore, an embodiment of the present invention also provides a computer storage medium storing an executable program. When the executable program is executed, it can be used to implement the control method of the refrigeration equipment provided by the above method embodiment.
[0085] Of course, the computer storage medium containing an executable program provided by an embodiment of the present invention is not limited to the above method operations, and its executable program can also execute related operations in the control method of the refrigeration equipment provided by any embodiment of the present invention.
[0086] In summary, the present invention provides a control method, device and refrigeration equipment for refrigeration equipment, which determine the switching fault type of the solenoid valve in the refrigeration equipment according to the temperature of the cold storage compartment, the temperature of the freezer compartment, the temperature of the evaporator and the duration of the working state of the refrigeration equipment, thereby avoiding the judgment error caused by a single data and improving the accuracy of the fault judgment. Moreover, after determining the relevant switching fault type of the solenoid valve in the refrigeration equipment, corresponding maintenance information will be generated and sent to the maintenance center that communicates with the refrigeration equipment, so that the user can obtain the maintenance information in time, thereby improving the fault handling capability and improving the user's usage experience.
[0087] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, devices, and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.
[0088] Although the present invention has been described herein in conjunction with various embodiments, in the process of implementing the claimed invention, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. The fact that certain strategies are described in different dependent claims does not mean that these strategies cannot be combined to produce good results.
[0089] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A method for controlling a refrigeration device, characterized in that: A control module applied to a refrigeration device, wherein the refrigeration device further includes a first temperature acquisition module, a second temperature acquisition module, an evaporator temperature acquisition module, and a timing module. The first temperature acquisition module is disposed in a refrigeration compartment of the refrigeration device and is used to detect the temperature of the refrigeration compartment. The second temperature acquisition module is disposed in a freezer compartment of the refrigeration device and is used to detect the temperature of the freezer compartment. The evaporator temperature acquisition module is disposed adjacent to an evaporator in the refrigeration device and is used to detect the temperature of the evaporator. The timing module is disposed inside the refrigeration device and is used to time various operating states of the refrigeration device. The control module is electrically connected to the first temperature acquisition module, the second temperature acquisition module, the evaporator temperature acquisition module, and the timing module. The method includes: Acquiring a first temperature of the refrigerated compartment collected by the first temperature collection module; Acquiring a second temperature of the evaporator collected by the evaporator temperature collection module; Acquiring a third temperature of the freezing compartment collected by the second temperature collection module; Obtaining the duration of the working state of the refrigeration equipment collected by the timing module; determining a switching fault type of the solenoid valve in the refrigeration equipment according to the first temperature, the second temperature, the third temperature, and the duration; Maintenance information is generated according to the switching fault type of the solenoid valve in the refrigeration equipment, and the maintenance information is sent to a maintenance center in communication with the refrigeration equipment.
2. The control method for refrigeration equipment according to claim 1, characterized in that: The duration includes a first duration, a second duration, a third duration, and a fourth duration. The first duration is the duration corresponding to when the first temperature of the refrigeration device is greater than or equal to a first temperature threshold corresponding to the first temperature. The second duration is the duration corresponding to when the second temperature of the refrigeration device is greater than a second temperature threshold corresponding to the second temperature. The third duration is the duration corresponding to when the first temperature of the refrigeration device is less than or equal to a third temperature threshold corresponding to the first temperature. The fourth duration is the duration corresponding to when the second temperature of the refrigeration device is less than or equal to a fourth temperature threshold corresponding to the second temperature. The first temperature threshold is different from the third temperature threshold, and the second temperature threshold is different from the fourth temperature threshold. Determining the switching fault type of the solenoid valve in the refrigeration device based on the first temperature, the second temperature, the third temperature, and the duration includes: comparing the first temperature with the first temperature threshold and the second temperature with the second temperature threshold; If the first temperature is greater than or equal to the first temperature threshold, the second temperature is greater than the second temperature threshold, and the third temperature is within a preset temperature range, comparing the first duration with a first duration threshold corresponding to the first duration, and comparing the second duration with a second duration threshold corresponding to the second duration; If the first duration is greater than the first duration threshold, and the second duration is greater than the second duration threshold, it is determined that the switching fault type of the solenoid valve in the refrigeration equipment is abnormal refrigeration compartment switching; comparing the first temperature with the third temperature threshold and the second temperature with the fourth temperature threshold; If the first temperature is less than or equal to the third temperature threshold, and the second temperature is less than or equal to the fourth temperature threshold, comparing the third duration with a third duration threshold corresponding to the third duration, and comparing the fourth duration with a fourth duration threshold corresponding to the fourth duration; If the third duration is greater than the third duration threshold, and the fourth duration is greater than the fourth duration threshold, it is determined that the switching fault type of the solenoid valve in the refrigeration equipment is abnormal freezing compartment switching.
3. The control method for refrigeration equipment according to claim 2, characterized in that: The step of generating maintenance information according to the switching fault type of the solenoid valve in the refrigeration equipment and sending the maintenance information to a maintenance center in communication with the refrigeration equipment includes: If the switching fault type of the solenoid valve in the refrigeration device is a refrigeration compartment switching abnormality, generating first maintenance information according to the refrigeration compartment switching abnormality, and sending the first maintenance information to a maintenance center in communication with the refrigeration device; If the switching fault type of the solenoid valve in the refrigeration device is abnormal switching of the freezing compartment, obtaining the working state of the compressor in the refrigeration device, wherein the working state includes an on state and an off state; According to the working status of the compressor, the working status of the compressor and / or the working mode of the refrigeration fan in the refrigeration equipment are adjusted, and second maintenance information is generated according to the abnormal switching of the freezer compartment, and the second maintenance information is sent to a maintenance center that communicates with the refrigeration equipment, wherein the working mode of the refrigeration fan includes a frost suppression mode and a refrigeration mode.
4. The control method for refrigeration equipment according to claim 3, characterized in that: The step of adjusting the working state of the compressor and / or the working state of the refrigeration fan in the refrigeration equipment according to the working state of the compressor includes: If the working state of the compressor is the on state, the speed gear of the compressor is adjusted, and the working mode of the refrigeration fan in the refrigeration equipment is adjusted to the frost suppression mode; If the working state of the compressor is the off state, obtaining the fourth temperature of the refrigerated compartment collected by the first temperature collection module; The operating mode of the refrigeration fan is adjusted according to the fourth temperature.
5. The control method for refrigeration equipment according to claim 4, characterized in that: If the working state of the compressor is the on state, the step of adjusting the speed gear of the compressor includes: Obtaining the current speed gear of the compressor; If the working state of the compressor is the on state, the speed gear of the compressor is increased based on the current gear.
6. The control method for refrigeration equipment according to claim 4, characterized in that: The step of determining the operating state of the refrigeration fan and the open / close state of the damper according to the fourth temperature includes: comparing the fourth temperature with a fifth temperature threshold corresponding to the fourth temperature; If the fourth temperature is greater than or equal to the fifth temperature threshold, the working state of the refrigeration fan is adjusted to the cooling mode, and the refrigeration damper is controlled to be in the open state, until the fourth temperature is lower than the fifth temperature threshold, the refrigeration fan is controlled to be in the shutdown state, and the refrigeration damper is controlled to be in the closed state.
7. The control method for refrigeration equipment according to any one of claims 1 to 6, characterized in that: Before the step of acquiring the first temperature of the refrigerated compartment acquired by the first temperature acquisition module, the method further includes: Acquiring the working state of the refrigeration compartment, wherein the working state of the refrigeration compartment includes an enabled state and a function disabled state; The step of obtaining the first temperature of the refrigerated compartment collected by the first temperature collection module includes: If the working state of the refrigerating compartment is the enabled state, a first temperature of the refrigerating compartment collected by the first temperature collecting module is obtained.
8. A control device for refrigeration equipment, characterized in that: A control module applied to a refrigeration device, wherein the refrigeration device further includes a first temperature acquisition module, a second temperature acquisition module, an evaporator temperature acquisition module, and a timing module. The first temperature acquisition module is disposed in the refrigeration compartment of the refrigeration device and is used to detect the temperature of the refrigeration compartment. The second temperature acquisition module is disposed in the freezer compartment of the refrigeration device and is used to detect the temperature of the freezer compartment. The evaporator temperature acquisition module is disposed adjacent to the evaporator in the refrigeration device and is used to detect the temperature of the evaporator. The timing module is disposed inside the refrigeration device and is used to time various working states of the refrigeration device. The control module is electrically connected to the first temperature acquisition module, the second temperature acquisition module, the evaporator temperature acquisition module, and the timing module. The device includes: a first acquiring unit, configured to acquire the first temperature of the refrigerated compartment acquired by the first temperature acquiring module; a second acquiring unit, configured to acquire the second temperature of the evaporator acquired by the evaporator temperature acquiring module; a third acquiring unit, configured to acquire the third temperature of the freezing compartment acquired by the second temperature acquiring module; a fourth acquiring unit, configured to acquire the duration of the working state of the refrigeration device collected by the timing module; a fault judgment unit, configured to judge a switching fault type of the solenoid valve in the refrigeration equipment according to the first temperature, the second temperature, the third temperature, and the duration; An information sending unit is used to generate maintenance information according to the switching fault type of the solenoid valve in the refrigeration equipment, and send the maintenance information to a maintenance center that communicates with the refrigeration equipment.
9. The control device for refrigeration equipment according to claim 8, characterized in that: The duration includes a first duration, a second duration, a third duration, and a fourth duration. The first duration is the duration corresponding to when the first temperature of the refrigeration device is greater than or equal to a first temperature threshold corresponding to the first temperature. The second duration is the duration corresponding to when the second temperature of the refrigeration device is greater than a second temperature threshold corresponding to the second temperature. The third duration is the duration corresponding to when the first temperature of the refrigeration device is less than or equal to a third temperature threshold corresponding to the first temperature. The fourth duration is the duration corresponding to when the second temperature of the refrigeration device is less than or equal to a fourth temperature threshold corresponding to the second temperature. The first temperature threshold is different from the third temperature threshold, and the second temperature threshold is different from the fourth temperature threshold. The fault judgment unit includes: a first comparing subunit, configured to compare the first temperature with the first temperature threshold and the second temperature with the second temperature threshold; a second comparing subunit, configured to compare the first duration with a first duration threshold corresponding to the first duration, and to compare the second duration with a second duration threshold corresponding to the second duration, if the first temperature is greater than or equal to the first temperature threshold, the second temperature is greater than the second temperature threshold, and the third temperature is within a preset temperature range; a first determining subunit, configured to determine that the switching fault type of the solenoid valve in the refrigeration equipment is a refrigeration compartment switching abnormality if the first duration is greater than the first duration threshold and the second duration is greater than the second duration threshold; a third comparing subunit, configured to compare the first temperature with the third temperature threshold and the second temperature with the fourth temperature threshold; a fourth comparing subunit, configured to, if the first temperature is less than or equal to the third temperature threshold and the second temperature is less than or equal to the fourth temperature threshold, compare the third duration with a third duration threshold corresponding to the third duration, and compare the fourth duration with a fourth duration threshold corresponding to the fourth duration; The second determining subunit is configured to determine that the switching fault type of the solenoid valve in the refrigeration equipment is a freezing compartment switching abnormality if the third duration is greater than the third duration threshold and the fourth duration is greater than the fourth duration threshold.
10. A refrigeration device, characterized in that: The refrigeration equipment comprises: a first temperature acquisition module, the first temperature acquisition module being disposed in the refrigeration compartment of the refrigeration equipment and being used to detect the temperature of the refrigeration compartment; a second temperature acquisition module, the second temperature acquisition module being disposed in the freezer compartment of the refrigeration equipment and being used to detect the temperature of the freezer compartment; an evaporator temperature acquisition module, the evaporator temperature acquisition module being disposed adjacent to the evaporator in the refrigeration equipment and being used to detect the temperature of the evaporator; A timing module, which is provided inside the refrigeration device and is used to time various working states of the refrigeration device; A control module, wherein the control module is electrically connected to the first temperature acquisition module, the second temperature acquisition module, the evaporator temperature acquisition module, and the timing module, and the control module is used to execute the control method of the refrigeration equipment according to any one of claims 1 to 7.