Control method and device, refrigeration equipment and readable storage medium

Abstract

The invention relates to a control method and device, refrigeration equipment and a readable storage medium, and the control method comprises the steps that when it is determined that the refrigeration equipment is in a refrigeration state, the air circulation amount in a refrigeration air duct in the refrigeration equipment is obtained, and the air circulation amount is at least related to the frosting degree of an evaporator in the refrigeration equipment; based on the air circulation amount, the refrigeration equipment is controlled to execute a defrosting task; wherein the air circulation ranges corresponding to different tasks are different.

Description

Technical Field

[0001] The present disclosure relates to the field of refrigeration technology, and in particular to a control method, a device, a refrigeration equipment and a readable storage medium. Background Art

[0002] Air-cooled refrigeration equipment can extend the storage time of food and ensure the quality of food. Therefore, it is increasingly popular among consumers.

[0003] At present, the defrosting method of air-cooled refrigeration equipment is mainly timed defrosting, which is to defrost the evaporator by regularly starting the heater installed on the evaporator. However, the execution time of timed defrosting is fixed. On the one hand, it is easy to start defrosting when there is little frost, wasting energy; on the other hand, it is easy to cause the defrosting to be not clean, affecting the refrigeration. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a control method, a device, a refrigeration equipment and a readable storage medium.

[0005] A first aspect of the present disclosure provides a control method, comprising:

[0006] When it is determined that the refrigeration device is in a refrigeration state, obtaining the air flow rate in the refrigeration air duct in the refrigeration device, wherein the air flow rate is at least related to the degree of frost on the evaporator in the refrigeration device;

[0007] Based on the air circulation rate, the refrigeration device is controlled to perform a defrosting task; wherein different tasks correspond to different air circulation rate ranges.

[0008] Optionally, controlling the refrigeration equipment to perform a defrosting task based on the air circulation rate includes:

[0009] Determining a current refrigeration intensity of the refrigeration device based on an ambient temperature of the refrigeration device and an internal temperature of the refrigeration device;

[0010] Based on the current refrigeration intensity of the refrigeration equipment, determining a target flow rate interval corresponding to the current refrigeration intensity; wherein the target flow rate interval includes: a plurality of sub-intervals, and different sub-intervals correspond to different tasks;

[0011] According to the air circulation rate, the refrigeration equipment is controlled to perform the defrosting task corresponding to the target sub-interval.

[0012] Optionally, controlling the refrigeration device to perform a defrosting task corresponding to a target sub-interval according to the air circulation rate includes:

[0013] When the air flow rate is within a first sub-interval of the target flow rate interval, controlling the refrigeration device to stop refrigeration and perform a defrosting operation;

[0014] When it is monitored that the defrosting time of the defrosting operation is greater than or equal to a first preset value, the refrigeration device is controlled to stop defrosting.

[0015] Optionally, controlling the refrigeration device to perform a defrosting task corresponding to a target sub-interval according to the air circulation rate includes:

[0016] When the air circulation rate is within a second sub-interval of the target circulation rate interval, the evaporator of the refrigeration device is controlled to maintain refrigeration, and the air circulation rate indicated by the second sub-interval is greater than the air circulation rate indicated by the first sub-interval.

[0017] Optionally, controlling the refrigeration device to perform a defrosting task corresponding to a target sub-interval according to the air circulation rate includes:

[0018] When the air circulation rate is within the third sub-interval of the target circulation rate interval, a first alarm message is output, wherein the first alarm message is used to remind the user that the sensing module in the refrigeration equipment is damaged, and the air circulation rate indicated by the third sub-interval is greater than the air circulation rate indicated by the second sub-interval.

[0019] Optionally, controlling the refrigeration device to perform a defrosting task corresponding to a target sub-interval according to the air circulation rate includes:

[0020] When the air circulation rate is within the fourth sub-interval of the target circulation rate interval, the evaporator of the refrigeration equipment is controlled to stop refrigeration and a second alarm message is output, wherein the second alarm message is used to remind the user that the refrigeration equipment is severely frosted, and the air circulation rate indicated by the fourth sub-interval is smaller than the air circulation rate indicated by the first sub-interval.

[0021] Optionally, the method further includes:

[0022] detecting the internal temperature of the refrigeration equipment;

[0023] If the internal temperature is higher than a preset temperature, the refrigeration device is controlled to switch to a refrigeration state.

[0024] In a second aspect of the present disclosure, a refrigeration device is provided. The control method described in any one of the embodiments of the first aspect of the present disclosure can be applied to the refrigeration device. The refrigeration device includes:

[0025] Refrigeration air duct;

[0026] an evaporator, located in the refrigeration air duct;

[0027] A fan, located in the refrigeration air duct, for driving the cold air generated by the evaporator to circulate in the refrigeration air duct;

[0028] A sensing module is located in the refrigeration air duct and is used to detect the air flow rate in the refrigeration air duct; the air flow rate is at least related to the degree of frost on the evaporator;

[0029] A defrosting module is located in the refrigeration air duct;

[0030] A control module is connected to the evaporator, the sensing module and the defrost module, and is used to control the refrigeration equipment to perform a defrost task based on the air circulation rate; wherein different tasks correspond to different air circulation rate ranges.

[0031] A third aspect of the present disclosure provides a control device, which is applied to a refrigeration device, comprising:

[0032] an acquisition module, configured to acquire, when determining that the refrigeration device is in a refrigeration state, an air flow rate in a refrigeration air duct in the refrigeration device, wherein the air flow rate is at least related to a frost degree of an evaporator in the refrigeration device;

[0033] A control module is used to control the refrigeration equipment to perform a defrosting task based on the air circulation rate; wherein different tasks correspond to different air circulation rate ranges.

[0034] Optionally, the control module is further used to:

[0035] Determining a current refrigeration intensity of the refrigeration device based on an ambient temperature of the refrigeration device and an internal temperature of the refrigeration device;

[0036] Based on the current refrigeration intensity of the refrigeration equipment, determining a target flow rate interval corresponding to the current refrigeration intensity; wherein the target flow rate interval includes: a plurality of sub-intervals, and different sub-intervals correspond to different tasks;

[0037] According to the air circulation rate, the refrigeration equipment is controlled to perform the defrosting task corresponding to the target sub-interval.

[0038] Optionally, the control module is further used to:

[0039] When the air flow rate is within a first sub-interval of the target flow rate interval, controlling the refrigeration device to stop refrigeration and perform a defrosting operation;

[0040] When it is monitored that the defrosting time of the defrosting operation is greater than or equal to a first preset value, the refrigeration device is controlled to stop defrosting.

[0041] Optionally, the control module is further used to:

[0042] When the air circulation rate is within a second sub-interval of the target circulation rate interval, the evaporator of the refrigeration device is controlled to maintain refrigeration, and the air circulation rate indicated by the second sub-interval is greater than the air circulation rate indicated by the first sub-interval.

[0043] Optionally, the control module is further used to:

[0044] When the air circulation rate is within the third sub-interval of the target circulation rate interval, a first alarm message is output, wherein the first alarm message is used to remind the user that the sensing module in the refrigeration equipment is damaged, and the air circulation rate indicated by the third sub-interval is greater than the air circulation rate indicated by the second sub-interval.

[0045] Optionally, the control module is further used to:

[0046] When the air circulation rate is within the fourth sub-interval of the target circulation rate interval, the evaporator of the refrigeration equipment is controlled to stop refrigeration and a second alarm message is output, wherein the second alarm message is used to remind the user that the refrigeration equipment is severely frosted, and the air circulation rate indicated by the fourth sub-interval is smaller than the air circulation rate indicated by the first sub-interval.

[0047] Optionally, the device further comprises:

[0048] A monitoring module, used to detect the internal temperature of the refrigeration equipment;

[0049] If the internal temperature is higher than a preset temperature, the refrigeration device is controlled to switch to a refrigeration state.

[0050] A fourth aspect of the present disclosure provides a refrigeration device, comprising:

[0051] a memory for storing processor-executable instructions;

[0052] A processor connected to the memory;

[0053] Wherein, the processor is configured to execute the control method as described in any embodiment of the first aspect of the present disclosure.

[0054] According to a fourth aspect of the present disclosure, a non-temporary computer-readable storage medium is provided. When instructions in the storage medium are executed by a processor of a refrigeration device, the refrigeration device can execute the control method as described in any one of the embodiments of the first aspect of the present disclosure.

[0055] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0056] In the disclosed embodiment, when it is determined that the refrigeration device is in a refrigeration state, the degree of frost on the evaporator in the refrigeration device can be determined by obtaining the air flow in the refrigeration air duct in the refrigeration device, and then the refrigeration device is controlled to perform a defrosting task that matches the degree of frost according to the degree of frost on the evaporator. In this process, the degree of frost on the evaporator can be monitored in real time to achieve intelligent defrosting and abnormal warning.

[0057] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0059] Figure 1 A control method according to an exemplary embodiment of the present disclosure is shown in FIG. Figure 1 .

[0060] Figure 2 A control method according to an exemplary embodiment of the present disclosure is shown in FIG. Figure 2 .

[0061] Figure 3 A control method according to an exemplary embodiment of the present disclosure is shown in FIG. Figure 3 .

[0062] Figure 4 It is a structural schematic diagram of a refrigeration device according to an exemplary embodiment of the present disclosure.

[0063] Figure 5 It is a structural schematic diagram of a control device according to an exemplary embodiment of the present disclosure.

[0064] Figure 6 The block diagram of a refrigeration device is shown according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0065] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0066] The present invention provides a control method. Figure 1A control method according to an exemplary embodiment of the present disclosure is shown in FIG. Figure 1 ,like Figure 1 As shown, the control method includes:

[0067] Step S101, when it is determined that the refrigeration device is in a refrigeration state, obtaining the air flow rate in the refrigeration air duct of the refrigeration device, wherein the air flow rate is at least related to the frost degree of the evaporator in the refrigeration device;

[0068] Step S102, based on the air circulation rate, controlling the refrigeration equipment to perform a defrosting task; wherein different tasks correspond to different air circulation rate ranges.

[0069] In the embodiments of the present disclosure, the control method can be applied to refrigeration equipment, which can be independent equipment such as a smart refrigerator and a smart freezer, or a composite equipment including a smart refrigerator and a smart freezer.

[0070] In step S101, the refrigeration air duct may be a passage for an evaporator in a refrigeration device to transmit cold air to the interior of the refrigeration device. The interior of the refrigeration device may be an area in the refrigeration device to which cold air is delivered. For example, the interior of the refrigeration device may be a refrigerator or freezer in a smart refrigerator.

[0071] It is understandable that when it is determined that the refrigeration device is in a refrigeration state, the low-temperature condensed liquid passes through the evaporator, exchanges heat with the outside air, vaporizes and absorbs heat, and makes the evaporator surface very cold. When the evaporator surface becomes very cold, the evaporator absorbs heat from the surrounding environment and generates a certain amount of cold air. Then the fan in the refrigeration device drives the cold air generated by the evaporator to circulate in the refrigeration air duct.

[0072] When the evaporator absorbs heat from the surrounding environment, it will cause frost on the surface of the evaporator. The higher the degree of frost on the surface of the evaporator, on the one hand, the heat exchange capacity of the evaporator will be lower, and the efficiency of the evaporator in generating cold air will also be reduced; on the other hand, it will block the gaps between the evaporator pipes, hindering the wind generated by the fan from passing through the evaporator, so that less and less wind can be blown into the cooling air duct.

[0073] It can be seen that the degree of frost on the surface of the evaporator will change the air flow rate in the refrigeration duct of the refrigeration device. Then, by obtaining the air flow rate in the refrigeration duct of the refrigeration device, the degree of frost on the evaporator in the refrigeration device can be reflected to a certain extent, thereby enabling real-time monitoring of the degree of frost on the evaporator.

[0074] In step S102, the refrigeration equipment may be controlled to perform a defrosting task according to the air flow rate obtained in step S101.

[0075] The defrosting task includes: a defrosting operation and a plurality of non-defrosting operations associated with the defrosting operation. Different tasks correspond to different air flow ranges, thereby representing different frosting degrees of the evaporator.

[0076] It can be understood that the refrigeration device can perform a defrosting operation corresponding to the degree of frosting when the air circulation rate is in different air circulation rate ranges, that is, when reflecting different degrees of frosting of the evaporator.

[0077] In the disclosed embodiment, when it is determined that the refrigeration device is in a refrigeration state, the degree of frost on the evaporator in the refrigeration device can be determined by obtaining the air flow in the refrigeration air duct in the refrigeration device, and then the refrigeration device is controlled to perform a defrosting task that matches the degree of frost according to the degree of frost on the evaporator. In this process, the degree of frost on the evaporator can be monitored in real time to achieve intelligent defrosting and abnormal warning.

[0078] Optional, Figure 2 A control method according to an exemplary embodiment of the present disclosure is shown in FIG. Figure 2 ,like Figure 2 As shown, the step S102 of controlling the refrigeration equipment to perform the defrosting task based on the air circulation volume includes:

[0079] Step S201, determining the current refrigeration intensity of the refrigeration device based on the ambient temperature of the refrigeration device and the internal temperature of the refrigeration device;

[0080] Step S202, based on the current refrigeration intensity of the refrigeration equipment, determining a target flow rate interval corresponding to the current refrigeration intensity; wherein the target flow rate interval includes: a plurality of sub-intervals, and different sub-intervals correspond to different tasks;

[0081] Step S203: controlling the refrigeration device to execute the defrosting task corresponding to the target sub-interval according to the air circulation rate.

[0082] In the embodiment of the present disclosure, the ambient temperature is the temperature of the environment in which the refrigeration device is located, which can usually be room temperature. The internal temperature can be the temperature inside the refrigeration device, for example, the temperature of the cold storage room in a smart refrigerator.

[0083] It can be understood that the ambient temperature of the refrigeration equipment can be obtained through a temperature sensing device in the refrigeration equipment that contacts the external environment; the internal temperature of the refrigeration equipment can be obtained through a temperature sensing component arranged at an internal position in the refrigeration equipment; based on the temperature difference between the ambient temperature and the internal temperature of the refrigeration equipment, the refrigeration process of the refrigeration equipment can be obtained; based on the refrigeration process, the current refrigeration intensity of the refrigeration equipment can be determined.

[0084] For example, assuming that the refrigeration equipment needs to be turned on and preheated, when it is just turned on for cooling, the refrigeration process of the refrigeration equipment can be determined to be the initial refrigeration stage. In the initial refrigeration stage, in order to achieve a slow start of each component, the refrigeration intensity can be set to a low level of intensity. After the refrigeration equipment has been working for a period of time relative to when it was just turned on, each component in the refrigeration equipment has adapted to the working state, and the refrigeration intensity can be set to a high level of intensity.

[0085] In one embodiment, the internal temperature of the refrigeration device can be obtained through a temperature sensing component arranged at an internal position in the refrigeration device; the preset temperature set by the user according to demand can also be obtained; based on the temperature difference between the internal temperature of the refrigeration device and the preset temperature, the refrigeration demand of the refrigeration device can be obtained, and the refrigeration demand is used to indicate the current refrigeration intensity of the refrigeration device.

[0086] For example, assuming that the refrigeration equipment has completed preheating, at this time, if the temperature difference between the internal temperature and the preset temperature is large, it can be determined that the current refrigeration demand of the refrigeration equipment is high, and the refrigeration intensity can be set to a high level intensity accordingly. If the temperature difference between the internal temperature and the preset temperature is small, it can be determined that the current refrigeration demand of the refrigeration equipment is small, and the refrigeration intensity can be set to a low level intensity accordingly.

[0087] It should be noted that the current refrigeration intensity of the refrigeration equipment may also be determined based on a variety of parameters such as a preset operating time of the refrigeration equipment and a preset working mode, and no specific limitation is made to this.

[0088] In step S202, based on the intensity level corresponding to the current refrigeration intensity of the refrigeration equipment, the speed of the fan corresponding to the intensity level can be determined; based on the speed of the fan and the allowable air volume passing through the evaporator under different frosting conditions, the target flow rate range corresponding to the speed of the fan can be determined.

[0089] It can be understood that a plurality of flow rate intervals may be preset, and the plurality of flow rate intervals correspond to different cooling intensities respectively; the flow rate interval corresponding to the current cooling intensity is determined as the target flow rate interval.

[0090] The target flow rate interval includes a plurality of sub-intervals, and each of the plurality of sub-intervals corresponds to a different air flow rate range, thereby representing different frosting degrees of the evaporator and corresponding to different tasks.

[0091] In some embodiments, the flow rate ranges corresponding to different refrigeration intensities can be set according to actual needs, and no specific limitation is made to this.

[0092] In one embodiment, different cooling intensities may correspond to different flow rate intervals.

[0093] It is understandable that, for air-cooled refrigeration equipment that uses a fan to drive cold air, when the refrigeration equipment is in a low-level intensity operation, the rotation speed of the fan in the refrigeration equipment is relatively slow, so that the cold air is driven to be slowly transmitted in the refrigeration duct. Accordingly, the target flow rate interval corresponding to the fan can be smaller in value as a whole. When the refrigeration equipment is in a high-level intensity operation, the rotation speed of the fan in the refrigeration equipment is relatively fast, so that the cold air is driven to be quickly transmitted in the refrigeration duct. Accordingly, the target flow rate interval corresponding to the fan can be larger in value as a whole.

[0094] For example, assuming that when the refrigeration intensity is a low level intensity, the corresponding flow rate interval may be 0-90, then, when the refrigeration intensity is a high level intensity, the corresponding flow rate interval may be 10-100.

[0095] It should be noted that the endpoints of the multiple sub-intervals within different flow rate intervals can be set according to the frosting degree of the evaporator under the refrigeration intensity corresponding to the flow rate interval, and no specific limitation is made to this.

[0096] In one embodiment, the flow rate interval corresponding to each cooling intensity may be the same, but the division of sub-intervals in each flow rate interval may be different.

[0097] It is understandable that, in order to monitor the entire flow rate interval, each flow rate interval can be set to be infinitely small to infinitely large. At the same time, according to the corresponding relationship between the degree of frost and the air flow rate under different refrigeration intensities, different sub-intervals are divided in the flow rate interval corresponding to each different refrigeration intensity.

[0098] Exemplarily, assuming that the range of all the flow intervals is 0-100, the three sub-intervals are divided in the corresponding flow interval when the refrigeration intensity is a low level intensity. Among them, the range of the first sub-interval can be 0-10, the range of the second sub-interval can be 10-30, and the range of the third sub-interval can be 30-100. When the refrigeration intensity is a high level intensity, the three sub-intervals are also divided in the corresponding flow interval, and the corresponding frost degree is the same as the frost degree corresponding to the three sub-intervals at the low level intensity. Among them, the range of the first sub-interval can be 0-20, the range of the second sub-interval can be 20-50, and the range of the third sub-interval can be 50-100.

[0099] It can be understood that when setting the air circulation range indicated by each sub-interval, the air circulation in the refrigeration duct under different frost degrees of the evaporator can be used as a reference; therefore, when the actually detected air circulation is within a certain sub-interval, it means that the current frost degree of the evaporator has reached the frost degree corresponding to the sub-interval, and the refrigeration equipment can be controlled to perform the task corresponding to the sub-interval.

[0100] In step S203, the target sub-interval among the multiple sub-intervals can be determined based on the correspondence between the air circulation volume obtained in step 101 and the air circulation volume indicated by multiple sub-intervals in the target circulation volume interval; and then the refrigeration equipment is controlled to perform the defrost task corresponding to the target sub-interval.

[0101] The corresponding relationship between the air circulation volume and the air circulation volumes indicated by the multiple sub-intervals may be that the value of the air circulation volume is within a value range corresponding to any one of the multiple sub-intervals.

[0102] It can be understood that the multiple sub-intervals correspond to different tasks respectively. When the value of the air circulation volume is within the value range corresponding to any target sub-interval, the refrigeration device can be controlled to perform the defrosting task corresponding to the target sub-interval.

[0103] In the disclosed embodiment, by acquiring the current refrigeration intensity of the refrigeration device, the target flow rate interval corresponding to the current refrigeration intensity can be determined; the target flow rate interval includes multiple sub-intervals, and according to the corresponding relationship between the air flow rate and the multiple sub-intervals, the refrigeration device can be controlled to perform the defrosting task corresponding to the sub-intervals. In this process, the refrigeration device can reasonably adjust the target flow rate interval based on the refrigeration intensity, and then adjust the multiple sub-intervals, so that the refrigeration device can more accurately determine the defrosting task that the air flow rate should correspond to under the current working state, thereby reducing the system error caused by the refrigeration device itself.

[0104] Optionally, the controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation rate in step S203 includes:

[0105] When the air flow rate is within a first sub-interval of the target flow rate interval, controlling the refrigeration device to stop refrigeration and perform a defrosting operation;

[0106] When it is monitored that the defrosting time of the defrosting operation is greater than or equal to a first preset value, the refrigeration device is controlled to stop defrosting.

[0107] In an embodiment of the present disclosure, when the air circulation rate is within the first sub-interval of the target circulation rate interval, that is, when the value of the air circulation rate is within the value range of the air circulation rate indicated by the first sub-interval, the refrigeration device is controlled to perform the defrost task corresponding to the first sub-interval.

[0108] The defrost task corresponding to the first sub-interval may include: stopping refrigeration and using a defrost module to perform defrosting.

[0109] It is understandable that the first sub-interval may correspond to a situation where defrosting is required, and the air flow indicated by the first sub-interval is set accordingly based on the air flow in the situation where defrosting is required as measured experimentally. Therefore, when the air flow is in the first sub-interval of the target flow interval, there is a serious frosting phenomenon in the refrigeration device, and the evaporator needs to be defrosted, and the refrigeration device is controlled to stop refrigeration and start defrosting.

[0110] The defrost task corresponding to the first sub-interval may further include: when it is monitored that the defrost time of the defrost operation is greater than or equal to a first preset value, controlling the refrigeration equipment to stop defrosting.

[0111] It is understandable that, through experiments, it can be obtained that when the defrost time of the defrost operation is greater than or equal to the first preset value, the frosting condition of the evaporator can be effectively improved. Therefore, when the defrost time of the defrost operation is greater than or equal to the first preset value, the refrigeration device can be controlled to stop defrosting to reduce power consumption.

[0112] The first preset value may be set according to actual conditions and is not specifically limited thereto.

[0113] In one embodiment, the first preset value can be set according to the intensity of the defrosting operation and the degree of frosting.

[0114] It can be understood that the refrigeration equipment can determine the amount of frost that can be defrosted within each time unit according to the intensity of the defrost operation; the refrigeration equipment can determine the amount of frosted frost according to the degree of frosting on the evaporator; based on the amount of frosted frost and the amount of frost to be defrosted within each time unit, the time required for defrosting can be determined, and the time can be set to a first preset value.

[0115] In one embodiment, the frosting degree can be determined according to the air circulation volume obtained in step S101.

[0116] It can be understood that the frosting degree can have a one-to-one correspondence with the air circulation amount, and the frosting degree can be obtained based on the air circulation amount.

[0117] In the embodiment of the present disclosure, when it is determined that the air circulation rate is within the air circulation rate range corresponding to the first sub-interval, it can be determined that severe frosting exists in the refrigeration device, thereby controlling the refrigeration device to perform a defrosting operation to achieve automatic defrosting.

[0118] Optionally, the controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation rate in step S203 includes:

[0119] When the air circulation rate is within a second sub-interval of the target circulation rate interval, the evaporator of the refrigeration device is controlled to maintain refrigeration, and the air circulation rate indicated by the second sub-interval is greater than the air circulation rate indicated by the first sub-interval.

[0120] In an embodiment of the present disclosure, when the air circulation rate is within the second sub-interval of the target circulation rate interval, that is, when the value of the air circulation rate is within the value range of the air circulation rate indicated by the second sub-interval, the refrigeration device is controlled to perform the defrost task corresponding to the second sub-interval.

[0121] Among them, the air circulation amount indicated by the second sub-interval is greater than the air circulation amount indicated by the first sub-interval. The air circulation amount indicated by the first sub-interval may correspond to the situation where defrosting is required. It can be seen that compared with the situation where the air circulation amount is in the air circulation amount range corresponding to the first sub-interval, if the air circulation amount is in the air circulation amount range corresponding to the second sub-interval, it means that the degree of frosting of the evaporator is relatively light, or the evaporator is not frosted; at this time, the evaporator does not need to be defrosted. Therefore, the defrosting task corresponding to the second sub-interval may include: the evaporator keeps cooling.

[0122] The setting of the air flow rate range of the second sub-interval may be determined by referring to the air flow rate of the fan and the air flow attenuation degree when the evaporator is not frosted or slightly frosted.

[0123] In one embodiment, the maximum air flow rate indicated by the second sub-interval may be the same as the maximum achievable air flow rate corresponding to the rotation speed of the fan.

[0124] In the embodiment of the present disclosure, when it is determined that the air circulation rate is within the air circulation rate range corresponding to the second sub-interval, it can be determined that the degree of frost on the refrigeration equipment is relatively light. At this time, the refrigeration equipment can be reasonably controlled to continue cooling, reduce the frequency of defrosting operations, and save energy.

[0125] Optionally, the controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation rate in step S203 includes:

[0126] When the air circulation rate is within the third sub-interval of the target circulation rate interval, a first alarm message is output, wherein the first alarm message is used to prompt the user that the sensing module in the refrigeration equipment is damaged, and the air circulation rate indicated by the third sub-interval is greater than the air circulation rate indicated by the second sub-interval.

[0127] It should be noted that the sensing module is used to detect the air flow rate in the refrigeration duct.

[0128] In an embodiment of the present disclosure, when the air circulation rate is within the third sub-interval of the target circulation rate interval, that is, when the value of the air circulation rate is within the value range of the air circulation rate indicated by the third sub-interval, the refrigeration device is controlled to perform the defrost task corresponding to the third sub-interval.

[0129] Among them, the air circulation volume indicated by the third sub-interval is greater than the air circulation volume indicated by the second sub-interval. The air circulation volume indicated by the second sub-interval may correspond to a relatively light degree of frost, or a situation where the evaporator is not frosted. It can be seen that if the air circulation volume is within the circulation volume range corresponding to the third sub-interval, it means that the data of the air circulation volume detected by the sensing module is abnormal; at this time, the refrigeration device can be controlled to output the first alarm information. The first alarm information can prompt the user that the sensing module in the refrigeration device is damaged.

[0130] The setting of the air flow rate range of the third sub-interval may be determined with reference to the air flow rate of the fan.

[0131] In one embodiment, the minimum air flow rate indicated by the third sub-interval may be greater than the maximum achievable air flow rate corresponding to the rotation speed of the fan.

[0132] In the disclosed embodiment, when it is determined that the air circulation rate is within the circulation rate range corresponding to the third sub-interval and when it is determined that the value monitored by the refrigeration equipment sensing module is abnormal, a first alarm message is output to prompt the user to replace the damaged sensing module.

[0133] Optionally, the controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation rate in step S203 includes:

[0134] When the air circulation rate is within the fourth sub-interval of the target circulation rate interval, the evaporator of the refrigeration equipment is controlled to stop refrigeration and a second alarm message is output, wherein the second alarm message is used to remind the user that the refrigeration equipment is severely frosted, and the air circulation rate indicated by the fourth sub-interval is smaller than the air circulation rate indicated by the first sub-interval.

[0135] In an embodiment of the present disclosure, when the air circulation rate is within the fourth sub-interval of the target circulation rate interval, that is, when the value of the air circulation rate is within the value range of the air circulation rate indicated by the fourth sub-interval, the refrigeration device is controlled to perform the defrost task corresponding to the fourth sub-interval.

[0136] The air circulation volume indicated by the fourth sub-interval is smaller than the air circulation volume indicated by the first sub-interval. The air circulation volume indicated by the first sub-interval may correspond to the situation where defrosting is required. It can be seen that if the air circulation volume is within the circulation volume range corresponding to the fourth sub-interval, it means that the evaporator is severely frosted abnormally and may not be able to improve the degree of evaporator frosting by itself through defrosting operation. At this time, the evaporator of the refrigeration equipment can be controlled to stop refrigeration and output the second alarm information.

[0137] It is understandable that when the air flow rate is in the fourth sub-interval of the target flow rate interval, the air flow rate is small, indicating that the frosting degree of the refrigeration equipment has exceeded the maximum frosting degree allowed for maintaining the stable operation of the refrigeration equipment, which is an abnormal situation. At this time, the evaporator of the refrigeration equipment can be controlled to stop refrigeration to prevent continuous frosting, and a second alarm message can be output. The second alarm message can prompt the user that the frost of the refrigeration equipment is abnormally serious.

[0138] After obtaining the second alarm information, the user may also disconnect the power supply of the refrigeration equipment to accelerate the defrosting of the evaporator and ensure that the refrigeration equipment is not damaged.

[0139] In some embodiments, when the second alarm information is detected, the refrigeration device may be controlled to perform a defrosting operation, and the execution time of the defrosting operation is a second preset value.

[0140] The second preset value can be set according to actual needs and is at least greater than the first preset value.

[0141] It can be understood that the refrigeration equipment outputs the second alarm information, which at least indicates that the refrigeration equipment is severely frosted. At this time, the refrigeration equipment can attempt to perform a defrost operation and control the time of the defrost operation (the second preset value) to be greater than the time required for normal defrosting (the first preset value), thereby enhancing the defrost intensity and realizing self-rescue of the refrigeration equipment.

[0142] When the execution time of the defrost operation is greater than or equal to a second preset value, the refrigeration device can re-acquire the air circulation volume in the refrigeration channel to determine whether the current air circulation volume changes, and accordingly execute the defrost task corresponding to the air circulation volume.

[0143] In the embodiment of the present disclosure, when it is determined that the air circulation rate is within the circulation rate range corresponding to the fourth sub-interval, it can be determined that the refrigeration equipment is severely frosted abnormally, and the refrigeration equipment can be controlled to stop refrigeration and output an alarm message to prevent damage to the refrigeration equipment.

[0144] Optionally, the method further includes:

[0145] detecting the internal temperature of the refrigeration equipment;

[0146] If the internal temperature is higher than a preset temperature, the refrigeration device is controlled to switch to a refrigeration state.

[0147] In the embodiment of the present disclosure, the internal temperature of the refrigeration device can be obtained by a temperature sensing component arranged at an internal position in the refrigeration device; the preset temperature set by the user according to the refrigeration demand can also be obtained; if the internal temperature is higher than the preset temperature, that is, the internal temperature does not meet the refrigeration demand, the refrigeration device can be controlled to switch to the refrigeration state.

[0148] When the refrigeration device is switched to the refrigeration state, the evaporator is controlled to start working to achieve refrigeration.

[0149] The control method in the embodiment of the present disclosure is described below with reference to specific examples.

[0150] Figure 3 A control method according to an exemplary embodiment of the present disclosure is shown in FIG. Figure 3 ,like Figure 3 As shown, the control method includes:

[0151] Step S301, the refrigeration equipment is turned on and waits;

[0152] Step S302, confirm whether a cooling demand is received, if yes, execute step S303; if no, execute step S301;

[0153] Step S303, confirming that the cooling demand has been received, and starting the evaporator to start cooling;

[0154] Step S304, obtaining the air flow rate in the cooling air duct; if a<air flow rate≤b, executing step S305; if b<air flow rate≤c, executing step S306; if c<air flow rate, executing step S307; if air flow rate≤b, executing step S308;

[0155] Step S305, exit refrigeration, control the evaporator to stop working; start defrosting, control the defrost module to start working; then execute step S309;

[0156] Step S306, continue cooling and keep the cooling state of the evaporator unchanged; then execute step S310;

[0157] Step S307, outputting the first alarm information;

[0158] Step S308, stop cooling and output a second alarm message;

[0159] Step S309, determining whether the defrost time reaches the first preset value, if so, executing step S302; if not, executing step S309;

[0160] Step S3010, determine whether refrigeration is completed, if so, execute step S302; if not, execute step S310.

[0161] In the disclosed embodiment, when it is determined that the refrigeration device is in a refrigeration state, the degree of frost on the evaporator in the refrigeration device can be determined by obtaining the air flow in the refrigeration air duct in the refrigeration device, and then the refrigeration device is controlled to perform a defrosting task that matches the degree of frost according to the degree of frost on the evaporator. In this process, the degree of frost on the evaporator can be monitored in real time to achieve intelligent defrosting and abnormal warning.

[0162] The present disclosure provides a refrigeration device. Figure 4 FIG. 1 is a schematic diagram of a refrigeration device according to an exemplary embodiment of the present disclosure. Figure 4 As shown, the refrigeration equipment comprises:

[0163] Refrigeration air duct 401;

[0164] The evaporator 402 is located in the cooling air duct 401;

[0165] A fan 403 is located in the cooling air duct 401 and is used to drive the cold air generated by the evaporator 402 to circulate in the cooling air duct 401;

[0166] The sensing module 404 is located in the cooling air duct 401 and is used to detect the air flow rate in the cooling air duct 401; the air flow rate is at least related to the degree of frost on the evaporator 401;

[0167] The defrosting module 405 is located in the refrigeration air duct 402;

[0168] The control module is connected to the evaporator 402, the sensing module 404 and the defrosting module 405, and is used to control the refrigeration equipment to perform a defrosting task based on the air circulation rate; wherein different tasks correspond to different air circulation rate ranges.

[0169] In the disclosed embodiment, the refrigeration air duct includes an evaporator, a fan, a sensing module and a defrosting module. The fan is located at a first side of the evaporator and blows air to the evaporator to drive the cold air generated by the evaporator to flow toward the sensing module located at a second side of the evaporator. After passing through the sensing module, the cold air is output from the refrigeration air duct to the inside of the refrigeration device.

[0170] It is understandable that when the evaporator absorbs heat from the surrounding environment, it will cause frost on the surface of the evaporator. The higher the degree of frost on the surface of the evaporator, on the one hand, the lower the heat exchange capacity of the evaporator will be, and the efficiency of the evaporator in generating cold air will also be reduced; on the other hand, it will block the gaps between the evaporator pipes, hindering the wind generated by the fan from passing through the evaporator, so that less and less wind can be blown into the cooling air duct.

[0171] Therefore, by acquiring the air flow rate in the refrigeration duct in the refrigeration device through the sensing module, the frost degree of the evaporator in the refrigeration device can be reflected to a certain extent, thereby enabling real-time monitoring of the frost degree of the evaporator.

[0172] Wherein, the sensing module may be a gas flow meter.

[0173] The control module of the refrigeration device is connected to the evaporator, the sensing module and the defrosting module, so that the sensing module can be controlled to monitor the air circulation; based on the air circulation, the refrigeration device can be controlled to perform the defrosting task;

[0174] It can be understood that, based on the air flow rate, the process of controlling the refrigeration device to perform the defrosting task can refer to Figures 1 to 3 For the sake of brevity, the description in the corresponding embodiments will not be repeated here.

[0175] In the embodiment of the present disclosure, by setting a sensing module in the refrigeration duct of the refrigeration equipment, the refrigeration equipment can be controlled to obtain the air circulation volume in real time through the sensing module, and then the frosting degree of the evaporator can be judged based on the air circulation volume, thereby realizing intelligent defrosting and abnormal warning.

[0176] The present disclosure provides a control device. Figure 5is a schematic diagram of a control device according to an exemplary embodiment of the present disclosure. Figure 5 As shown, the control device 500 includes:

[0177] An acquisition module 501 is used to acquire the air flow rate in the refrigeration air duct of the refrigeration device when it is determined that the refrigeration device is in a refrigeration state, wherein the air flow rate is at least related to the frost degree of the evaporator in the refrigeration device;

[0178] The control module 502 is used to control the refrigeration device to perform a defrosting task based on the air circulation rate; wherein different tasks correspond to different air circulation rate ranges.

[0179] Optionally, the control module 502 is further configured to:

[0180] Determining a current refrigeration intensity of the refrigeration device based on an ambient temperature of the refrigeration device and an internal temperature of the refrigeration device;

[0181] Based on the current refrigeration intensity of the refrigeration equipment, determining a target flow rate interval corresponding to the current refrigeration intensity; wherein the target flow rate interval includes: a plurality of sub-intervals, and different sub-intervals correspond to different tasks;

[0182] According to the air circulation rate, the refrigeration equipment is controlled to perform the defrosting task corresponding to the target sub-interval.

[0183] Optionally, the control module 502 is further configured to:

[0184] When the air flow rate is within a first sub-interval of the target flow rate interval, controlling the refrigeration device to stop refrigeration and perform a defrosting operation;

[0185] When it is monitored that the defrosting time of the defrosting operation is greater than or equal to a first preset value, the refrigeration device is controlled to stop defrosting.

[0186] Optionally, the control module 502 is further configured to:

[0187] When the air circulation rate is within a second sub-interval of the target circulation rate interval, the evaporator of the refrigeration device is controlled to maintain refrigeration, and the air circulation rate indicated by the second sub-interval is greater than the air circulation rate indicated by the first sub-interval.

[0188] Optionally, the control module 502 is further configured to:

[0189] When the air circulation rate is within the third sub-interval of the target circulation rate interval, a first alarm message is output, wherein the first alarm message is used to remind the user that the circulation rate detection device in the refrigeration equipment is damaged, and the air circulation rate indicated by the third sub-interval is greater than the air circulation rate indicated by the second sub-interval.

[0190] Optionally, the control module 502 is further configured to:

[0191] When the air circulation rate is within the fourth sub-interval of the target circulation rate interval, the evaporator of the refrigeration equipment is controlled to stop refrigeration and a second alarm message is output, wherein the second alarm message is used to remind the user that the refrigeration equipment is severely frosted, and the air circulation rate indicated by the fourth sub-interval is smaller than the air circulation rate indicated by the first sub-interval.

[0192] Optionally, the device further comprises:

[0193] A monitoring module, used to detect the internal temperature of the refrigeration equipment;

[0194] If the internal temperature is higher than a preset temperature, the refrigeration device is controlled to switch to a refrigeration state.

[0195] Figure 6 1 is a block diagram of a refrigeration device according to an exemplary embodiment of the present disclosure. For example, the refrigeration device may be a smart refrigerator, a smart freezer, etc.

[0196] Reference Figure 6 The refrigeration device 80 may include one or more of the following components: a processing component 83, a memory 84, a power component 85, a multimedia component 86, an audio component 87, an input / output (I / O) interface 88, a sensor component 89, and a communication component 810.

[0197] The processing component 83 generally controls the overall operation of the refrigeration device 80, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 83 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 83 may include one or more modules to facilitate the interaction between the processing component 83 and other components. For example, the processing component 83 may include a multimedia module to facilitate the interaction between the multimedia component 86 and the processing component 83.

[0198] The memory 84 is configured to store various types of data to support operations on the refrigeration device 80. Examples of such data include instructions for any application or method operating on the refrigeration device 80, contact data, phone book data, messages, pictures, videos, etc. The memory 84 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0199] The power supply assembly 85 provides power to the various components of the refrigeration equipment 80. The power supply assembly 85 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the refrigeration equipment 80.

[0200] The multimedia component 86 includes a screen that provides an output interface between the refrigeration device 80 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 86 includes a front camera and / or a rear camera. When the refrigeration device 80 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0201] The audio component 87 is configured to output and / or input audio signals. For example, the audio component 87 includes a microphone (MIC), and when the refrigeration device 80 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 84 or sent via the communication component 810. In some embodiments, the audio component 87 also includes a speaker for outputting audio signals.

[0202] I / O interface 88 provides an interface between processing component 83 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button and lock button.

[0203] The sensor assembly 89 includes one or more sensors for providing various aspects of status assessment for the refrigeration device 80. For example, the sensor assembly 89 can detect the open / closed state of the refrigeration device 80, the relative positioning of the components, such as the display and keypad of the refrigeration device 80, and the sensor assembly 89 can also detect the position change of the refrigeration device 80 or a component of the refrigeration device 80, the presence or absence of user contact with the refrigeration device 80, the orientation or acceleration / deceleration of the refrigeration device 80 and the temperature change of the refrigeration device 80. The sensor assembly 89 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 89 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 89 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0204] The communication component 810 is configured to facilitate wired or wireless communication between the refrigeration device 80 and other devices. The refrigeration device 80 can access a wireless network based on a communication standard, such as Wi-Fi, 4G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 810 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 810 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0205] In an exemplary embodiment, the refrigeration device 80 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0206] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 84 including instructions, which can be executed by a processor 820 of the refrigeration device 80 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0207] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0208] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A control method, characterized in that: The method is applied to refrigeration equipment, and the method comprises: When it is determined that the refrigeration device is in a refrigeration state, obtaining the air flow rate in the refrigeration air duct in the refrigeration device, wherein the air flow rate is at least related to the degree of frost on the evaporator in the refrigeration device; Based on the air circulation rate, the refrigeration device is controlled to perform a defrosting task; wherein different tasks correspond to different air circulation rate ranges.

2. The method according to claim 1, characterized in that The controlling the refrigeration equipment to perform the defrosting task based on the air flow rate includes: Determining a current refrigeration intensity of the refrigeration device based on an ambient temperature of the refrigeration device and an internal temperature of the refrigeration device; Based on the current refrigeration intensity of the refrigeration equipment, determining a target flow rate interval corresponding to the current refrigeration intensity; wherein the target flow rate interval includes: a plurality of sub-intervals, and different sub-intervals correspond to different tasks; According to the air circulation rate, the refrigeration equipment is controlled to perform the defrosting task corresponding to the target sub-interval.

3. The method according to claim 2, characterized in that The controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation volume includes: When the air flow rate is within a first sub-interval of the target flow rate interval, controlling the refrigeration device to stop refrigeration and perform a defrosting operation; When it is monitored that the defrosting time of the defrosting operation is greater than or equal to a first preset value, the refrigeration device is controlled to stop defrosting.

4. The method according to claim 2, characterized in that: The controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation volume includes: When the air circulation rate is within a second sub-interval of the target circulation rate interval, the evaporator of the refrigeration device is controlled to maintain refrigeration, and the air circulation rate indicated by the second sub-interval is greater than the air circulation rate indicated by the first sub-interval.

5. The method according to claim 2, characterized in that: The controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation volume includes: When the air circulation rate is within the third sub-interval of the target circulation rate interval, a first alarm message is output, wherein the first alarm message is used to remind the user that the sensing module in the refrigeration equipment is damaged, and the air circulation rate indicated by the third sub-interval is greater than the air circulation rate indicated by the second sub-interval.

6. The method according to claim 2, characterized in that The controlling the refrigeration device to perform the defrosting task corresponding to the target sub-interval according to the air circulation volume includes: When the air circulation rate is within the fourth sub-interval of the target circulation rate interval, the evaporator of the refrigeration equipment is controlled to stop refrigeration and a second alarm message is output, wherein the second alarm message is used to remind the user that the refrigeration equipment is severely frosted, and the air circulation rate indicated by the fourth sub-interval is smaller than the air circulation rate indicated by the first sub-interval.

7. The method according to claim 1, characterized in that The method further comprises: detecting the internal temperature of the refrigeration equipment; If the internal temperature is higher than a preset temperature, the refrigeration device is controlled to switch to a refrigeration state.

8. A refrigeration device, characterized in that: The control method according to any one of claims 1 to 7 is applied to the refrigeration equipment, and the refrigeration equipment comprises: Refrigeration air duct; an evaporator, located in the refrigeration air duct; A fan, located in the refrigeration air duct, for driving the cold air generated by the evaporator to circulate in the refrigeration air duct; A sensing module is located in the refrigeration air duct and is used to detect the air flow rate in the refrigeration air duct; the air flow rate is at least related to the degree of frost on the evaporator; A defrosting module is located in the refrigeration air duct; A control module is connected to the evaporator, the sensing module and the defrost module, and is used to control the refrigeration equipment to perform a defrost task based on the air circulation rate; wherein different tasks correspond to different air circulation rate ranges.

9. A control device, characterized in that: The device is applied to refrigeration equipment, including: an acquisition module, configured to acquire, when determining that the refrigeration device is in a refrigeration state, an air flow rate in a refrigeration air duct in the refrigeration device, wherein the air flow rate is at least related to a frost degree of an evaporator in the refrigeration device; A control module is used to control the refrigeration equipment to perform a defrosting task based on the air circulation rate; wherein different tasks correspond to different air circulation rate ranges.

10. A refrigeration device, characterized in that: include: a memory for storing processor-executable instructions; A processor connected to the memory; Wherein, the processor is configured to execute the control method as described in any one of claims 1 to 7.

11. A non-transitory computer-readable storage medium, characterized in that: When the instructions in the storage medium are executed by a processor of a refrigeration device, the refrigeration device can execute the control method according to any one of claims 1 to 7.

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