CN115560506A - Refrigeration equipment control method, device and system and refrigeration equipment - Google Patents

Abstract

The application relates to a refrigeration equipment control method, after the refrigeration equipment is detected to finish defrosting, a compressor of the refrigeration equipment is controlled to be started and operated at a preset highest compressor rotating speed, and a fan of the refrigeration equipment is controlled to be started and operated at a preset lowest fan rotating speed, so that pre-refrigeration of an evaporator is realized. And after the pre-refrigeration meets the preset pre-refrigeration stop condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed to realize normal refrigeration operation. Before the defrosting is finished and the refrigeration is started, the pre-refrigeration is firstly carried out, the temperature and the humidity of the air in the space where the evaporator is located are quickly reduced, the rotating speed of the fan is extremely low, the moist hot air in the space where the evaporator is located is prevented from flowing into the storage chamber to a certain extent, the influence of the moist hot air blown into the storage chamber on articles in the storage chamber is reduced, the dry cold air can be conveyed to the storage chamber during the final refrigeration, and the storage effect of the articles in the storage chamber of the refrigeration equipment is effectively improved.

Description

Refrigeration equipment control method, device and system and refrigeration equipment

Technical Field

The present disclosure relates to the field of refrigeration technologies, and in particular, to a method, an apparatus, a system and a refrigeration device for controlling a refrigeration device.

Background

With the development of scientific technology and the continuous improvement of the living standard of people, refrigeration equipment such as refrigerators and the like are more and more widely used in the daily life of people, and great convenience is brought to the daily life of people. In the use process of the refrigeration equipment, the frosting phenomenon is easy to occur due to frequent door opening and closing and the like, and the power consumption of the refrigeration equipment is easy to increase, so the refrigeration equipment is generally provided with the defrosting function.

However, when the refrigeration equipment performs defrosting, the heating process is required to perform defrosting, which may cause the temperature and humidity of the space where the evaporator of the refrigeration equipment is located to increase, and when the refrigeration equipment is started, hot and humid air in the space where the evaporator is located may be easily blown into the storage compartment, which may seriously affect the storage effect of the articles in the storage compartment.

Disclosure of Invention

Accordingly, it is necessary to provide a method, an apparatus, a system and a refrigeration device for controlling the refrigeration device, which solve the problem that after the refrigeration device is defrosted, hot and humid air is blown into the storage compartment, which seriously affects the storage effect of the articles in the storage compartment.

A refrigeration device control method comprising: detecting whether the evaporator of the refrigeration equipment completes defrosting; if the evaporator finishes defrosting, controlling a compressor of the refrigeration equipment to start and operate at a preset highest compressor rotating speed, and simultaneously controlling a fan of the refrigeration equipment to start and operate at a preset lowest fan rotating speed so as to pre-refrigerate the evaporator; and if the pre-refrigeration meets the preset pre-refrigeration cut-off condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed.

According to the control method of the refrigeration equipment, after the refrigeration equipment is detected to finish defrosting, the compressor of the refrigeration equipment is controlled to start and operate at the preset highest compressor rotating speed, and meanwhile, the fan of the refrigeration equipment is controlled to start and operate at the preset lowest fan rotating speed, so that pre-refrigeration of the evaporator is realized. And after the pre-refrigeration meets the preset pre-refrigeration stop condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed to realize normal refrigeration operation. According to the scheme, before the defrosting is finished and the refrigeration is started, the pre-refrigeration is firstly carried out, and the compressor conveys the refrigerant to the evaporator at the highest rotating speed in the process, so that the temperature and the humidity of the air in the space where the evaporator is located are rapidly reduced. And because the rotational speed of the fan is extremely low, prevent the moist hot air of the space that the evaporator locates from flowing into the storeroom in a large number to a certain extent, reduce the moist hot air and insufflate the influence to the article in the storage room, can guarantee finally when refrigerating, to the storage room transport dry cold air, effectively improve the storage effect of the article in the refrigeration plant storage room.

In one embodiment, before detecting whether the evaporator of the refrigeration equipment completes defrosting, the method further includes: and if detecting that the evaporator of the refrigeration equipment starts defrosting, starting timing to obtain defrosting duration.

In one embodiment, if the evaporator finishes defrosting, controlling a compressor of the refrigeration equipment to start and operate at a preset maximum compressor rotation speed, and controlling a fan of the refrigeration equipment to start and operate at a preset minimum fan rotation speed, so as to perform pre-cooling on the evaporator, the method further includes: and starting timing to obtain the pre-cooling time length.

In one embodiment, the pre-refrigeration meeting a preset pre-refrigeration cut-off condition includes: the pre-refrigeration time reaches the accumulated defrosting time of a preset multiple, and the accumulated defrosting time is the defrosting time when the evaporator finishes defrosting.

In one embodiment, the refrigeration appliance control method further comprises: and acquiring the evaporator temperature of the evaporator in real time.

In one embodiment, the pre-refrigeration meeting a preset pre-refrigeration cut-off condition includes: the evaporator temperature meets a preset temperature condition.

In one embodiment, the evaporator temperature satisfying the preset temperature condition includes: the evaporator temperature is less than or equal to a preset temperature threshold.

In one embodiment, the determining of the preset temperature threshold includes: acquiring the initial evaporator temperature of the refrigeration equipment during defrosting starting; analyzing according to a preset temperature parameter and a preset lowest storage temperature corresponding to the storage chamber to obtain a calculated temperature; and taking the minimum value of the initial evaporator temperature and the calculated temperature as a preset temperature threshold value.

A refrigeration appliance control apparatus comprising: the defrosting detection module is used for detecting whether the evaporator of the refrigeration equipment completes defrosting or not; the pre-refrigeration module is used for controlling a compressor of the refrigeration equipment to start and operate at a preset highest compressor rotating speed and controlling a fan of the refrigeration equipment to start and operate at a preset lowest fan rotating speed to pre-refrigerate the evaporator if the evaporator completes defrosting; and the refrigeration module is used for controlling the compressor to operate at the preset refrigeration compressor rotating speed and controlling the fan to operate at the preset refrigeration fan rotating speed if the pre-refrigeration meets the preset pre-refrigeration cutoff condition.

A refrigeration equipment control system comprises an evaporator, a compressor, a controller and a fan, wherein the evaporator, the compressor and the fan are respectively connected with the controller, the compressor is connected with the evaporator, and the controller is used for performing refrigeration control according to any one of the refrigeration equipment control methods.

In one embodiment, the refrigeration device control system further comprises a temperature detector, the temperature detector is arranged on the evaporator, and the temperature detector is connected with the controller.

A refrigeration appliance comprising a refrigeration appliance control system as recited in any of the above.

In one embodiment, the refrigeration appliance is a refrigerator.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic flow chart illustrating a control method of a refrigeration apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic flow chart of a control method for a refrigeration apparatus according to another embodiment of the present application;

FIG. 3 is a schematic flow chart illustrating a control method for a refrigeration apparatus according to another embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a control device of a refrigeration apparatus according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a control system of a refrigeration appliance according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a refrigeration appliance control system according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a refrigeration device in another embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, a refrigeration apparatus control method includes steps 102, 104 and 106.

Step 102, detecting whether the evaporator of the refrigeration equipment completes defrosting.

Specifically, the refrigeration equipment is equipment capable of realizing a refrigeration function and providing a low-temperature and dry environment for article storage. The specific type of the refrigeration device is not exclusive, and the refrigeration device can be a refrigerator, a freezer and the like, and is not limited in particular. In the operation process of the refrigeration equipment, the evaporator condenses frost on the surface of the evaporator due to low temperature, and defrosting refers to removing the frost condensed on the evaporator. It should be noted that the implementation of the defrosting operation is not exclusive, and in a more detailed embodiment, the refrigeration apparatus is provided with an electric heating apparatus, and when defrosting is performed, the controller only needs to control the electric heating apparatus to operate, so as to heat the evaporator to raise the temperature of the evaporator.

It will be appreciated that the manner of detecting whether the evaporator has completed defrosting is not exclusive and in one embodiment, a predicted defrost time may be set for the evaporator and when defrosting is initiated to reach the predicted defrost time, the defrost is considered complete. In another embodiment, whether the evaporator completes defrosting can be further judged by detecting the temperature of the evaporator and the like, and the specific mode is not limited and can be set by combining with actual requirements.

And 104, if the evaporator finishes defrosting, controlling a compressor of the refrigeration equipment to start and operate at a preset highest compressor rotating speed, and simultaneously controlling a fan of the refrigeration equipment to start and operate at a preset lowest fan rotating speed so as to pre-refrigerate the evaporator.

Specifically, the preset maximum compressor rotation speed is the preset maximum rotation speed that can be reached by the compressor of the current refrigeration equipment in the operation process. The preset lowest fan rotating speed is the preset lowest rotating speed which can be reached by the fan of the current refrigeration equipment in the operation process.

If the controller detects that the evaporator finishes defrosting, the refrigeration equipment is controlled to enter a pre-refrigeration running state, and in the running state, the controller controls the compressor of the refrigeration equipment to start running at the preset highest compressor rotating speed and controls the fan of the refrigeration equipment to start running at the preset lowest fan rotating speed. Because the compressor has higher running rotating speed, the temperature of the evaporator can be quickly reduced, and meanwhile, water molecules in the air of the space where the evaporator is located can start to desublimate, so that the air humidity is quickly reduced, and dry and cold air is obtained. Meanwhile, the fan is started and the rotating speed of the fan is set to the preset lowest rotating speed of the fan, so that the condition that the low-rotating-speed fan cannot blow air flow into the storage compartment of the refrigeration equipment is ensured. At the moment, the rotating speed of the fan is too low, weak oscillation and extremely low wind speed can be generated due to unstable operation, the oscillation can help the residual water drops on the evaporator to drip, and meanwhile, the low wind flow can convey the damp and hot air in the space where the evaporator is located to the vicinity of the evaporator. Because the temperature of the evaporator is rapidly reduced to be lower, water molecules in the gas disappear rapidly through physical liquefaction or condensation, so that the air in the space where the evaporator of the refrigeration equipment is located is restored to a cold dry state, and the gas with low humidity can achieve better refrigeration and food preservation effects.

It should be noted that the preset maximum compressor speed and the preset minimum fan speed are not unique in size, and the specific sizes of the preset maximum compressor speed and the preset minimum fan speed may be different according to the models of the actual refrigeration equipment. For example, in one preferred embodiment, the preset maximum compressor speed may be set to 4000 revolutions per second; the preset minimum fan speed may be set to any magnitude from 100 rpm to 300 rpm, such as 200 rpm, etc.

And step 106, if the pre-refrigeration meets the preset pre-refrigeration cut-off condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed.

Specifically, the preset rotating speed of the refrigeration compressor is the preset rotating speed corresponding to the compressor when the refrigeration equipment is used for normal refrigeration. The preset refrigeration fan rotating speed is the preset rotating speed corresponding to the fan when the current refrigeration equipment is used for normal refrigeration.

The controller can monitor the progress of the pre-refrigeration in real time after controlling the compressor and the fan to be started for pre-refrigeration, and finishes the pre-refrigeration operation when the pre-refrigeration meets the preset pre-refrigeration stop condition. Correspondingly, at the moment, the controller controls the compressor to operate at the preset refrigeration compressor rotating speed from the preset highest compressor rotating speed, and controls the fan to operate at the preset refrigeration fan rotating speed from the preset lowest fan rotating speed.

It should be noted that the preset rotational speed of the refrigeration compressor is not unique, and the corresponding preset rotational speed of the refrigeration compressor may be different according to different actual compressor types. For example, in a more detailed embodiment, the preset refrigerant compressor speed may be set to 2000 revolutions per second. Similarly, the preset cooling fan rotating speed is not unique, and the corresponding preset cooling fan rotating speeds are different according to different actual fan types. For example, in a more detailed embodiment, the preset refrigeration fan speed may be set at 1200 revolutions per second.

According to the control method of the refrigeration equipment, after the refrigeration equipment is detected to finish defrosting, the compressor of the refrigeration equipment is controlled to be started and operated at the preset highest compressor rotating speed, and meanwhile, the fan of the refrigeration equipment is controlled to be started and operated at the preset lowest fan rotating speed, so that pre-refrigeration of the evaporator is realized. And after the pre-refrigeration meets the preset pre-refrigeration stop condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed to realize normal refrigeration operation. According to the scheme, before the defrosting is finished and the refrigeration is started, the pre-refrigeration is firstly carried out, and the compressor conveys the refrigerant to the evaporator at the highest rotating speed in the process, so that the temperature and the humidity of the air in the space where the evaporator is located are rapidly reduced. And because the rotational speed of the fan is extremely low, prevent the moist hot air of the space that the evaporator locates from flowing into the storeroom in a large number to a certain extent, reduce the moist hot air and insufflate the influence to the article in the storage room, can guarantee finally when refrigerating, to the storage room transport dry cold air, effectively improve the storage effect of the article in the refrigeration plant storage room.

Referring to fig. 2, in one embodiment, before step 102, the method further includes step 202.

Step 202, if it is detected that the evaporator of the refrigeration equipment starts defrosting, timing is started to obtain defrosting duration.

Specifically, during the operation process of the refrigeration equipment, the controller can be used for monitoring the operation of the refrigeration equipment by combining the operation state parameters of the refrigeration equipment in real time. And when the start of defrosting of the refrigeration equipment is detected, timing is started to obtain defrosting duration, and finally after defrosting is finished, the accumulated defrosting duration is obtained. According to the scheme, the defrosting time is counted, the controller can know the running state of the refrigeration equipment in time, and the running monitoring of the refrigeration equipment is realized.

It should be noted that the manner in which the evaporator is detected as beginning defrosting is not exclusive, and in one embodiment, it is contemplated that defrosting is initiated when the controller sends an on command to the electrical heating means for defrosting.

It will be appreciated that in one embodiment, the controller is provided with a timing function, and the timing operation may be specifically implemented directly by the controller. In another embodiment, an additional timer may be further disposed in the refrigeration apparatus, and the controller performs a corresponding timing function by controlling the timer to start, which is not limited herein.

Referring to fig. 3, in one embodiment, after step 104, the method further includes step 302.

Step 302, starting timing to obtain a pre-cooling time length.

Specifically, the pre-cooling time period is the duration of the pre-cooling time when the controller controls the compressor and the fan to be turned on. In the scheme of the embodiment, after the controller controls the start of pre-refrigeration, the controller also starts to time to obtain the length of the pre-refrigeration time, so that the controller can know the running state of the refrigeration equipment in time, and the running monitoring of the refrigeration equipment is realized.

In one embodiment, the pre-refrigeration meeting a preset pre-refrigeration cutoff condition includes: and the pre-refrigeration time reaches the accumulated defrosting time of a preset multiple, and the accumulated defrosting time is the defrosting time when the evaporator finishes defrosting.

Specifically, the pre-cooling cut-off condition is not unique, and in the scheme of this embodiment, the duration of the pre-cooling is used as a criterion for determining whether the pre-cooling cut-off condition is met, and when the pre-cooling time reaches the cumulative defrosting time of the preset multiple, the pre-cooling cut-off condition is considered to be met, that is, the pre-cooling is completed. According to the scheme, the pre-refrigeration stop detection is realized by detecting whether the pre-refrigeration time reaches the accumulated defrosting time of the preset multiple, and the method has the advantages of simple detection mode and high detection efficiency.

It should be noted that the preset multiple is not unique in magnitude, as long as it is less than the cumulative defrost period. For example, in a preferred embodiment, the predetermined multiple may be set to 1/6. Namely, when the controller is started to perform pre-refrigeration and time, the timing time reaches 1/6 times of the accumulated defrosting time, and the pre-refrigeration operation is finished.

In one embodiment, the refrigeration appliance control method further comprises: and acquiring the evaporator temperature of the evaporator in real time.

Specifically, during defrosting, the evaporator needs to be heated for defrosting, which causes the temperature of the evaporator to rise sharply, and when entering a pre-cooling state, the temperature of the evaporator drops rapidly due to the transmission of the refrigerant. Therefore, in the process of starting and operating the evaporator, the controller can acquire the temperature of the evaporator in real time, so that the operating state of the evaporator can be monitored according to the temperature of the evaporator.

It should be noted that the evaporator temperature is not necessarily obtained only, and in one embodiment, a temperature detector may be disposed at the evaporator, and the evaporator temperature is detected by the temperature detector in real time and sent to the controller.

In one embodiment, the pre-refrigeration satisfies a pre-refrigeration cutoff condition, including: the evaporator temperature meets the preset temperature condition.

Specifically, in the solution of this embodiment, since the evaporator temperature is rapidly decreased when the pre-cooling is performed, the evaporator temperature can be used as a criterion for determining whether the pre-cooling satisfies the pre-cooling cut-off condition. And when the controller analyzes according to the received evaporator temperature to obtain that the evaporator temperature meets the preset temperature condition, the pre-refrigeration at the moment is considered to meet the preset pre-refrigeration cut-off condition, namely the pre-refrigeration is finished.

According to the scheme, the temperature of the evaporator is used as a judgment basis for judging whether the pre-refrigeration is cut off, the pre-refrigeration operation is combined with the temperature of the evaporator, the pre-refrigeration accuracy is improved, and the operation reliability of the refrigeration equipment is ensured.

In one embodiment, the evaporator temperature satisfying the preset temperature condition includes: the evaporator temperature is less than or equal to a preset temperature threshold.

Specifically, in the scheme of this embodiment, when analyzing whether the pre-cooling is stopped in combination with the steam temperature, specifically, the evaporator temperature is compared with the preset temperature threshold value for analysis, and when the evaporator temperature is less than or equal to the preset temperature threshold value, the pre-cooling is considered to satisfy the pre-cooling stop condition.

It should be noted that the magnitude of the preset temperature threshold is not exclusive, and in a more detailed embodiment, the preset temperature threshold may be directly set in the controller in combination with an actual usage scenario, for example, the preset temperature threshold is set to minus 28 degrees celsius (-28 ℃), and the like, which is not limited specifically.

Further, in one embodiment, the determining of the preset temperature threshold includes: acquiring the initial evaporator temperature when the refrigeration equipment starts defrosting; analyzing according to the preset temperature parameter and the preset lowest storage temperature corresponding to the storage chamber to obtain a calculated temperature; and taking the minimum value of the initial evaporator temperature and the calculated temperature as a preset temperature threshold value.

Specifically, the initial evaporator temperature is temperature data collected and sent by a temperature detector disposed in the evaporator when the evaporator is turned on for defrosting operation. Before the evaporator begins to defrost, the evaporator is in a frosting state, temperature regulation and control of the storage compartment are achieved in the temperature state, the temperature of the evaporator is generally low, and the refrigeration requirement can be met. In the operation process of a storage compartment of refrigeration equipment, a preset minimum storage temperature and a preset maximum storage temperature are usually set, and the temperature of the storage compartment in operation is generally kept between the preset minimum storage temperature and the preset maximum storage temperature so as to meet the storage requirement of articles.

According to the scheme of the embodiment, after the refrigeration equipment is started for defrosting, the initial evaporator temperature when the refrigeration equipment is just started for defrosting and the preset lowest storage temperature when the storage compartment is in refrigeration operation are acquired, the preset temperature parameter is combined for analysis to obtain the calculated temperature, and finally the smaller value of the initial evaporator temperature and the calculated temperature is used as the preset temperature threshold value and stored. And after the refrigeration equipment enters a pre-refrigeration running state, comparing and analyzing the acquired evaporator temperature with a preset temperature threshold, and ending the pre-refrigeration operation when the evaporator temperature is less than or equal to the preset temperature threshold.

It should be noted that the way of obtaining the calculated temperature by analyzing the preset temperature parameter and the preset minimum storage temperature corresponding to the storage chamber is not exclusive, and in one embodiment, the calculated temperature may be obtained by subtracting the preset minimum storage temperature from the preset temperature parameter.

It is understood that neither the preset temperature parameter nor the preset minimum storage temperature is unique, and the preset temperature parameter and the preset minimum storage temperature are distinguished by being specifically combined with actual refrigeration equipment. For example, in a more detailed embodiment, the preset temperature parameter may be set to 10 ℃ and the preset minimum storage temperature may be set to-18 ℃. Accordingly, in one embodiment, the calculated temperature is-18 ℃ to 10 ℃= -28 ℃, and at this time, the initial evaporator temperature is only required to be compared with-28 ℃, and if the initial evaporator temperature is greater than-28 ℃, the-28 ℃ is taken as the preset temperature threshold.

In order to facilitate understanding of the technical solutions of the present application, the present application is explained below with reference to more detailed embodiments.

Firstly, the refrigeration equipment detects that a defrosting condition is met, the controller controls the refrigeration equipment to be started for defrosting at the moment, when the electric heating device is started for defrosting, the temperature detector is started to acquire the temperature of the evaporator in real time, the temperature of the evaporator acquired at the moment of defrosting start is used as the initial temperature of the evaporator and is sent to the controller, and meanwhile the controller starts timing to obtain the defrosting duration.

And if the defrosting time reaches a certain value, meeting the defrosting ending condition, stopping the electric heater, ending the defrosting, and obtaining the accumulated defrosting time by the controller. And then the controller detects that the evaporator of the refrigeration equipment completes defrosting, the compressor is controlled to be started and operated at the preset highest compressor rotating speed, and meanwhile, the fan of the refrigeration equipment is controlled to be started and operated at the preset lowest fan rotating speed so as to pre-refrigerate the evaporator. After the compressor and the fan are started to operate, the controller starts timing, compares and analyzes the preset cooling time obtained by timing with the accumulated defrosting time (for example, 30 x 1/6=5 minutes) of the preset multiple (1/6), meets the preset cooling cut-off condition when the preset cooling time reaches 5 minutes, controls the compressor to operate at the preset rotating speed of the refrigeration compressor, controls the fan to operate at the preset rotating speed of the refrigeration fan, and enters a normal refrigeration mode.

It should be understood that, although the steps in the flowcharts related to the embodiments are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a part of the steps in the flowcharts related to the above embodiments may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.

Based on the same inventive concept, the embodiment of the application also provides a refrigeration equipment control device for realizing the refrigeration equipment control method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so specific limitations in one or more embodiments of the refrigeration equipment control device provided below can be referred to the limitations on the refrigeration equipment control method in the above, and details are not described herein again.

Referring to fig. 4, a refrigeration device control apparatus includes a defrost detection module 402, a pre-cooling module 404, and a cooling module 406.

The defrosting detection module 402 is configured to detect whether an evaporator of the refrigeration apparatus completes defrosting; the pre-refrigeration module 404 is configured to, if the evaporator completes defrosting, control a compressor of the refrigeration apparatus to start and operate at a preset highest compressor rotation speed, and control a fan of the refrigeration apparatus to start and operate at a preset lowest fan rotation speed, so as to pre-refrigerate the evaporator; the refrigeration module 406 is configured to control the compressor to operate at a preset refrigeration compressor rotation speed and control the fan to operate at a preset refrigeration fan rotation speed if the pre-refrigeration meets a preset pre-refrigeration cut-off condition.

In one embodiment, the defrost detection module 402 is further configured to start timing to obtain the defrost duration if it detects that the evaporator of the refrigeration apparatus starts to defrost.

In one embodiment, pre-chill module 404 is also configured to start a timer for a pre-chill duration.

In one embodiment, the refrigeration module 406 is further configured to obtain an evaporator temperature of the evaporator in real time.

The modules in the control device of the refrigeration equipment can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

According to the refrigeration equipment control device, after the refrigeration equipment is detected to finish defrosting, the compressor of the refrigeration equipment is controlled to start and operate at the preset highest compressor rotating speed, and meanwhile, the fan of the refrigeration equipment is controlled to start and operate at the preset lowest fan rotating speed, so that pre-refrigeration of the evaporator is realized. And after the pre-refrigeration meets the preset pre-refrigeration stop condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed to realize normal refrigeration operation. According to the scheme, before the defrosting is finished and the refrigeration is started, the pre-refrigeration is firstly carried out, and the compressor conveys the refrigerant to the evaporator at the highest rotating speed in the process, so that the temperature and the humidity of the air in the space where the evaporator is located are rapidly reduced. And because the rotating speed of the fan is extremely low, the phenomenon that a large amount of hot and humid air in the space where the evaporator is located flows into the storage chamber is avoided to a certain extent, the influence of the hot and humid air blown into the storage chamber on articles in the storage chamber is reduced, the dry and cold air can be conveyed to the storage chamber when refrigeration is finally carried out, and the storage effect of the articles in the storage chamber of the refrigeration equipment is effectively improved.

Referring to fig. 5, a refrigeration equipment control system includes an evaporator 501, a compressor 503, a controller 505 and a fan 507, the evaporator 501, the compressor 503 and the fan 507 are respectively connected to the controller 505, the compressor 503 is connected to the evaporator 501, and the controller 505 is configured to perform refrigeration control according to any one of the above refrigeration equipment control methods.

Specifically, during the operation of the refrigeration equipment, the evaporator 501 condenses frost on its surface due to its low temperature, and defrosting is to remove the frost condensed on the evaporator 501. It should be noted that the implementation of the defrosting operation is not exclusive, and in a more detailed embodiment, the refrigeration device is provided with an electric heating device, and when defrosting is performed, the controller 505 only needs to control the electric heating device to operate, so as to heat the evaporator 501 to raise the temperature thereof.

The preset maximum compressor rotation speed is the preset maximum rotation speed that can be reached by the compressor 503 of the current refrigeration equipment in the operation process. The preset lowest fan speed is the preset lowest speed that the fan 507 of the current refrigeration equipment can reach in the operation process.

If the controller 505 detects that the evaporator 501 completes defrosting, the refrigeration equipment is controlled to enter a pre-cooling operation state, in the operation state, the controller 505 controls the compressor 503 of the refrigeration equipment to start to operate at a preset highest compressor rotation speed, and simultaneously controls the fan 507 of the refrigeration equipment to start to operate at a preset lowest fan rotation speed. The compressor 503 has a high operating speed, so that the temperature of the evaporator 501 can be quickly reduced, water molecules in the air in the space where the evaporator 501 is located can be desublimated, the air humidity is quickly reduced, and dry and cold air is obtained. Meanwhile, the fan 507 is started and the rotating speed of the fan is set to the preset minimum rotating speed of the fan, so that the condition that the low-rotating-speed fan 507 cannot blow air flow into the storage compartment of the refrigeration equipment is ensured. At this time, the rotating speed of the fan is too low, the fan is not stable in operation but generates weak oscillation and extremely low wind speed, the oscillation can help the water drops remained on the evaporator 501 to drip, and meanwhile, the low wind flow can convey the humid and hot air in the space where the evaporator 501 is located to the vicinity of the evaporator 501. Because the temperature of the evaporator 501 is rapidly reduced to be lower, water molecules in the gas disappear rapidly through physical liquefaction or condensation, so that the air in the space where the evaporator 501 of the refrigeration equipment is located is restored to a cold dry state, and the gas with low humidity can achieve better refrigeration and food preservation effects.

The controller 505 can monitor the progress of the pre-cooling in real time after controlling the compressor 503 and the fan 507 to be started for the pre-cooling, and when the pre-cooling meets a preset pre-cooling stop condition, the pre-cooling operation is finished. Correspondingly, at this time, the controller 505 controls the compressor 503 to operate at the preset refrigeration compressor rotation speed from the preset maximum compressor rotation speed, and controls the fan 507 to operate at the preset refrigeration fan rotation speed from the preset minimum fan rotation speed.

Referring to fig. 6, in an embodiment, the refrigeration equipment control system further includes a temperature detector 509, the temperature detector 509 is disposed on the evaporator 501, and the temperature detector 509 is connected to the controller 505.

Specifically, during the defrosting process, the evaporator 501 needs to be heated for defrosting, which causes the temperature of the evaporator 501 to rise sharply, and when entering the pre-cooling state, the temperature of the evaporator 501 drops rapidly due to the transmission of the refrigerant. Therefore, the evaporator 501 may be provided with a temperature detector 509, and the temperature of the evaporator 501 may be detected in real time by the temperature detector and sent to the controller 505. So that the controller 505 monitors the operating state of the evaporator 501 according to the temperature of the evaporator 501.

According to the refrigeration equipment control system, after the refrigeration equipment is detected to finish defrosting, the compressor 503 of the refrigeration equipment is controlled to start and operate at the preset highest compressor rotating speed, and meanwhile the fan 507 of the refrigeration equipment is controlled to start and operate at the preset lowest fan rotating speed, so that pre-refrigeration of the evaporator 501 is realized. After the pre-refrigeration meets the preset pre-refrigeration stop condition, the compressor 503 is controlled to operate at the preset refrigeration compressor rotating speed, and meanwhile, the fan 507 is controlled to operate at the preset refrigeration fan rotating speed, so that the normal refrigeration operation is realized. In the above-described configuration, before the defrosting is finished and the cooling is started, the pre-cooling is performed first, and in this process, the compressor 503 delivers the refrigerant to the evaporator 501 at the highest rotation speed, so that the temperature and humidity of the air in the space where the evaporator 501 is located are rapidly reduced. Moreover, because the rotating speed of the fan 507 is extremely low, a large amount of hot and humid air in the space where the evaporator 501 is located is prevented from flowing into the storage chamber to a certain extent, the influence of the hot and humid air blown into the storage chamber on articles in the storage chamber is reduced, the dry and cold air can be conveyed to the storage chamber during the final refrigeration, and the storage effect of the articles in the storage chamber of the refrigeration equipment is effectively improved.

A refrigeration appliance comprising a refrigeration appliance control system as claimed in any one of the preceding claims.

Specifically, referring to fig. 7, the specific structure of the refrigeration equipment control system is as shown in the above embodiments and the accompanying drawings, and will not be described herein again. According to the refrigeration equipment, after the refrigeration equipment is detected to finish defrosting, the compressor of the refrigeration equipment is controlled to be started and operated at the preset highest compressor rotating speed, and meanwhile, the fan of the refrigeration equipment is controlled to be started and operated at the preset lowest fan rotating speed, so that pre-refrigeration of the evaporator is realized. And after the pre-refrigeration meets the preset pre-refrigeration cut-off condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed to realize normal refrigeration operation. According to the scheme, before the defrosting is finished and the refrigeration is started, the pre-refrigeration is firstly carried out, and the compressor conveys the refrigerant to the evaporator at the highest rotating speed in the process, so that the temperature and the humidity of the air in the space where the evaporator is located are rapidly reduced. And because the rotating speed of the fan is extremely low, the phenomenon that a large amount of hot and humid air in the space where the evaporator is located flows into the storage chamber is avoided to a certain extent, the influence of the hot and humid air blown into the storage chamber on articles in the storage chamber is reduced, the dry and cold air can be conveyed to the storage chamber when refrigeration is finally carried out, and the storage effect of the articles in the storage chamber of the refrigeration equipment is effectively improved.

Furthermore, the refrigeration equipment is equipment which can realize the refrigeration function and provide a low-temperature and dry environment for storing articles. The specific type is not exclusive, and the refrigerator can be a refrigerator, a freezer and the like, and is not limited in particular.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims (13)

1. A refrigeration apparatus control method, comprising:

detecting whether the evaporator of the refrigeration equipment completes defrosting;

if the evaporator finishes defrosting, controlling a compressor of the refrigeration equipment to start and operate at a preset highest compressor rotating speed, and simultaneously controlling a fan of the refrigeration equipment to start and operate at a preset lowest fan rotating speed so as to pre-refrigerate the evaporator;

and if the pre-refrigeration meets the preset pre-refrigeration stop condition, controlling the compressor to operate at the preset refrigeration compressor rotating speed, and simultaneously controlling the fan to operate at the preset refrigeration fan rotating speed.

2. The refrigeration appliance control method according to claim 1, wherein before the detecting whether or not the evaporator of the refrigeration appliance completes defrosting, the method further comprises:

and if detecting that the evaporator of the refrigeration equipment starts defrosting, starting timing to obtain defrosting duration.

3. The method as claimed in claim 2, wherein if the evaporator is defrosted, the method further comprises the steps of controlling a compressor of the refrigeration apparatus to operate at a preset maximum compressor speed, and controlling a fan of the refrigeration apparatus to operate at a preset minimum fan speed, so as to pre-cool the evaporator:

and starting timing to obtain the pre-cooling time length.

4. The refrigeration apparatus control method according to claim 3, wherein the pre-cooling satisfies a preset pre-cooling cutoff condition, including:

the pre-refrigeration time reaches the accumulated defrosting time of a preset multiple, and the accumulated defrosting time is the defrosting time when the evaporator finishes defrosting.

5. The refrigeration appliance control method according to claim 1, further comprising:

and acquiring the evaporator temperature of the evaporator in real time.

6. The refrigeration apparatus control method according to claim 5, wherein the pre-cooling satisfies a preset pre-cooling cutoff condition, including:

the evaporator temperature meets a preset temperature condition.

7. The refrigeration appliance control method as claimed in claim 6, wherein the evaporator temperature satisfying a preset temperature condition includes:

the evaporator temperature is less than or equal to a preset temperature threshold.

8. The refrigeration appliance control method as claimed in claim 7, wherein the preset temperature threshold is determined in a manner comprising:

acquiring the initial evaporator temperature of the refrigeration equipment during defrosting starting;

analyzing according to a preset temperature parameter and a preset lowest storage temperature corresponding to the storage chamber to obtain a calculated temperature;

and taking the minimum value of the initial evaporator temperature and the calculated temperature as a preset temperature threshold value.

9. A refrigeration apparatus control device, comprising:

the defrosting detection module is used for detecting whether the evaporator of the refrigeration equipment completes defrosting or not;

the pre-refrigeration module is used for controlling a compressor of the refrigeration equipment to start and operate at a preset highest compressor rotating speed and controlling a fan of the refrigeration equipment to start and operate at a preset lowest fan rotating speed to pre-refrigerate the evaporator if the evaporator completes defrosting;

and the refrigeration module is used for controlling the compressor to operate at the preset refrigeration compressor rotating speed and controlling the fan to operate at the preset refrigeration fan rotating speed if the pre-refrigeration meets the preset pre-refrigeration cutoff condition.

10. A refrigeration device control system, comprising an evaporator, a compressor, a controller and a fan, wherein the evaporator, the compressor and the fan are respectively connected with the controller, the compressor is connected with the evaporator, and the controller is used for performing refrigeration control according to the refrigeration device control method of any one of claims 1 to 8.

11. The refrigeration appliance control system of claim 10 further comprising a temperature detector disposed in the evaporator, the temperature detector being coupled to the controller.

12. A refrigeration appliance comprising a refrigeration appliance control system as claimed in any one of claims 10 to 11.

13. The refrigeration appliance of claim 12 wherein the refrigeration appliance is a refrigerator.

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