CN109458787B - Refrigeration system and control method, device, equipment and storage medium thereof - Google Patents
Refrigeration system and control method, device, equipment and storage medium thereof Download PDFInfo
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- CN109458787B CN109458787B CN201811305631.9A CN201811305631A CN109458787B CN 109458787 B CN109458787 B CN 109458787B CN 201811305631 A CN201811305631 A CN 201811305631A CN 109458787 B CN109458787 B CN 109458787B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a refrigeration system and a control method, a control device, equipment and a storage medium thereof, wherein the method comprises the following steps: when the refrigeration system is in a refrigeration mode, acquiring the real-time temperature of a refrigeration chamber in the refrigeration system; acquiring the temperature difference between the real-time temperature and the set refrigeration shutdown temperature; and acquiring a target temperature range where the temperature difference is positioned, determining the first number of air doors needing to be opened by the refrigeration system according to the target temperature range, and controlling to open the air doors consistent with the first number. According to the method, the opening number of the air doors is determined according to the temperature difference between the real-time temperature of the refrigerating chamber and the set refrigerating shutdown temperature, so that the heat exchange of the refrigerating chamber is sufficient, the temperature difference between different positions in the refrigerating chamber after refrigeration is reduced, and the refrigeration uniformity of the refrigerating system is improved.
Description
Technical Field
The invention relates to the technical field of electric appliance control, in particular to a refrigeration system, a control method, a control device, equipment and a storage medium thereof.
Background
At present, refrigerators have been popularized in various households. For the air-cooled refrigerator, when the refrigerating chamber needs to be refrigerated, the air door of the refrigerating chamber is controlled to be opened firstly, then the freezing fan blows cold air into the refrigerating chamber to refrigerate, and when the refrigerating chamber does not need to refrigerate, the air door is controlled to be closed.
However, the applicant finds that the existing command for controlling the refrigerator damper is a command for controlling a single damper, and in the control method, the refrigerator damper is generally in a fully open state or a fully closed state, so that the control method can cause insufficient heat exchange at a position deviated from the damper, so that the temperature of the whole refrigerating chamber is not uniform, the temperature difference at the upper position and the lower position of the refrigerating chamber is large, and the storage of food is not facilitated.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
To this end, a first object of the invention is to propose a control method of a refrigeration system. According to the method, a plurality of parallel air doors are arranged for the refrigeration system in advance, the opening number of the air doors is determined according to the temperature difference between the real-time temperature of the refrigeration chamber and the set refrigeration stop temperature, the rotating speed of the freezing fan is adjusted, the refrigeration speed is adjusted according to the refrigeration requirement, cold air is uniformly distributed in the refrigeration chamber, the sufficient heat exchange of the refrigeration chamber is ensured, the temperature difference between different positions in the refrigeration chamber after refrigeration is reduced, and the refrigeration uniformity of the refrigeration system is improved.
A second object of the present invention is to provide a control device for a refrigeration system.
A third object of the present invention is to provide a refrigeration system.
A fourth object of the invention is to propose an electronic device.
A fifth object of the present invention is to propose a computer-readable storage medium.
In order to achieve the above object, a first aspect of the present invention provides a method for controlling a refrigeration system, including the steps of:
when the refrigeration system is in a refrigeration mode, acquiring the real-time temperature of a refrigeration chamber in the refrigeration system;
acquiring the temperature difference between the real-time temperature and the set refrigeration shutdown temperature;
acquiring a target temperature range of the temperature difference, determining a first number of air doors to be opened of the refrigeration system according to the target temperature range, and controlling to open the air doors consistent with the first number
The control method of the refrigeration system comprises the steps of setting a set number of parallel air doors for the refrigeration system in advance, wherein the number of the air doors can be two or more, and each air door can be independently controlled to be opened or closed. Therefore, according to the method, the opening number of the air doors is determined according to the temperature difference between the real-time temperature of the refrigerating chamber and the set refrigerating shutdown temperature, and the rotating speed of the freezing fan is correspondingly adjusted, so that the refrigerating speed is adjusted according to the refrigerating requirement, the cold air is uniformly distributed in the refrigerating chamber, the heat exchange of the refrigerating chamber is sufficient, the temperature difference between different positions in the refrigerating chamber after refrigeration is reduced, and the refrigerating uniformity of the refrigerating system is improved.
In addition, the control method of the refrigeration system according to the above embodiment of the present invention may further have the following additional technical features:
in one embodiment of the present invention, the method for controlling a refrigeration system further includes: determining a target rotating speed of a freezing fan in the refrigeration system according to the target temperature range; and controlling the freezing fan to adjust the current rotating speed to the target rotating speed for operation.
In an embodiment of the present invention, after controlling the freezing fan to operate from the current rotational speed to the target rotational speed, the method further includes: controlling to continuously detect the real-time temperature of the refrigerating chamber, and updating the temperature difference by using the continuously detected real-time temperature; when the updated temperature difference is reduced to be less than or equal to a preset temperature threshold value from the target temperature range, controlling a second number of air doors to be kept open, and closing the rest of the air doors which are being opened; wherein the first number is greater than or equal to the second number; and controlling the freezing fan to adjust the target rotating speed to a set rotating speed for operation.
In one embodiment of the present invention, the method for controlling a refrigeration system further includes: the larger the temperature difference is, the larger the opening number of the air doors is, and the larger the target rotating speed of the refrigerating fan is.
In one embodiment of the present invention, controlling opening of the dampers in correspondence with the first number comprises: randomly controlling to open the air doors in accordance with the first number; or, according to the target temperature range, determining the identifier of the air doors needing to be opened, and controlling to open the air doors with the first number according to the identifier of the air doors; wherein different target temperature ranges correspond to different numbers of dampers that need to be opened.
In one embodiment of the present invention, before obtaining the real-time temperature of the refrigerating compartment in the refrigeration system when the refrigeration system is in the cooling mode, the method further includes: detecting whether a refrigeration request is received, and controlling the refrigeration system to enter the refrigeration mode if the refrigeration request is detected; controlling all dampers in the refrigeration system to be in a closed state if the cooling request is not detected.
In order to achieve the above object, according to another embodiment of the present invention, a control device for a refrigeration system includes:
the first acquisition module is used for acquiring the real-time temperature of a refrigerating chamber in the refrigerating system when the refrigerating system is in a refrigerating mode;
the second acquisition module is used for acquiring the temperature difference between the real-time temperature and the set refrigeration shutdown temperature;
and the control module is used for acquiring a target temperature range where the temperature difference is positioned, determining a first number of air doors needing to be opened by the refrigeration system according to the target temperature range, and controlling to open the air doors consistent with the first number.
The control device of the refrigeration system in the embodiment of the invention firstly obtains the real-time temperature of the refrigeration chamber in the refrigeration system, then determines the temperature difference between the real-time temperature and the set refrigeration shutdown temperature, finally obtains the target temperature range of the temperature difference, further determines the first number of air doors to be opened in the preset number of parallel air doors in the refrigeration system according to the target temperature range, and controls the opening of the air doors consistent with the first number. From this, the device is according to the difference in temperature between the real-time temperature of cold-storage room and the cold-storage shutdown temperature of setting for, confirms the quantity of opening of air door to the rotational speed of freezing fan of corresponding adjustment, thereby adjust the refrigeration speed according to the refrigeration demand, make air conditioning evenly distributed at cold-storage room, guaranteed that cold-storage room heat transfer is abundant, reduced the refrigerated temperature difference between the different positions in the cold-storage room of back, improved the refrigerated homogeneity of refrigerating system.
In order to achieve the above object, in another aspect, the present invention provides a refrigeration system, which includes the control device of the refrigeration system as described in the above embodiments, and a plurality of dampers.
In order to achieve the above object, another embodiment of the present invention provides an electronic device, including a processor and a memory, wherein the processor executes a program corresponding to an executable program code by reading the executable program code stored in the memory, so as to implement the control method of the refrigeration system according to the above embodiment.
To achieve the above object, another embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the control method of the refrigeration system according to the above embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart illustrating a method for controlling a refrigeration system according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a method for controlling a refrigeration system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control device of a refrigeration system according to an embodiment of the present invention; and
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The embodiment of the invention mainly aims at the technical problems that in the related technology, the refrigerator air door is generally a single air door, and when the refrigerator air door is controlled to be opened and closed, the refrigerator air door is generally in a fully-opened or fully-closed state, so that the heat exchange at the position deviated from the air door is insufficient, the temperature of the whole refrigerating chamber is uneven, and the temperature difference at the upper position and the lower position of the refrigerating chamber is large.
According to the control method of the refrigeration system, the set number of the parallel air doors is set for the refrigeration system in advance, the number of the air doors can be two or more, each air door can be independently controlled to be opened or closed, when the refrigeration system is specifically controlled, the opening number of the air doors is determined according to the temperature difference between the real-time temperature of the refrigeration chamber and the set refrigeration shutdown temperature, and the rotating speed of the freezing fan is correspondingly adjusted, so that the refrigeration speed is adjusted according to the refrigeration requirement, cold air is uniformly distributed in the refrigeration chamber, the sufficient heat exchange of the refrigeration chamber is ensured, the temperature difference among different positions in the refrigeration chamber after refrigeration is reduced, and the refrigeration uniformity of the refrigeration system is improved.
A refrigeration system, a control method, an apparatus, and a facility according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating a control method of a refrigeration system according to an embodiment of the present invention. As shown in fig. 1, the control method of the refrigeration system includes the following steps:
step 101, when the refrigeration system is in a refrigeration mode, acquiring real-time temperature of a refrigeration compartment in the refrigeration system.
Specifically, when the refrigeration system is in the refrigeration mode, it is first determined whether refrigeration is required to be performed on the refrigeration compartment, as a possible implementation manner, it may be detected whether a refrigeration request sent by a controller in the refrigeration compartment is received, if it is detected that the refrigeration request is received, it is determined that the refrigeration system needs to perform refrigeration on the refrigeration compartment, and if it is not detected that the refrigeration request is received, all dampers in the refrigeration system are controlled to be in a closed state, and the refrigeration system prohibits refrigeration on the refrigeration compartment.
Further, if it is determined that cooling is to be performed in the refrigerating compartment, the real-time temperature of the refrigerating compartment is first acquired. As a possible implementation manner, the temperature of the refrigerating compartment may be collected in real time by a temperature sensor provided at the refrigerating compartment to obtain the real-time temperature of the refrigerating compartment. In order to improve the accuracy of the acquired real-time temperature of the refrigerating chamber, temperature sensors can be arranged at different positions of the refrigerating chamber to acquire the real-time temperatures at different positions, then the acquired data are averaged to acquire an average temperature value of the refrigerating chamber in the current state, and the error in acquiring the temperature data is reduced.
Step 102, obtaining a temperature difference between the real-time temperature and the set refrigeration shutdown temperature.
The refrigeration shutdown temperature is a preset target temperature of a refrigeration chamber after refrigeration of the refrigeration system is finished, and can be automatically set by the system or set by a user. In specific implementation, after the real-time temperature of the refrigerating chamber in the refrigerating system is obtained, the difference between the real-time temperature and the refrigerating shutdown temperature can be obtained so as to obtain the temperature difference between the real-time temperature and the refrigerating shutdown temperature.
It can be understood that when the difference in temperature between the real-time temperature of cold-storage compartment and the cold-storage shutdown temperature is big, the refrigeration demand that shows cold-storage compartment is big to need control refrigerating system and refrigerate with faster speed, consequently, acquire the difference in temperature between real-time temperature and the cold-storage shutdown temperature of settlement, be convenient for follow-up according to difference in temperature control refrigerating system.
And 103, acquiring a target temperature range where the temperature difference is located, determining a first number of air doors needing to be opened by the refrigeration system according to the target temperature range, and controlling to open the air doors consistent with the first number.
Specifically, according to the refrigeration demands of the refrigerating chamber under different temperature differences, the temperature range of the temperature difference between the real-time temperature of the refrigerating chamber and the refrigerating shutdown temperature is divided in advance, and the opening number of the air doors corresponding to different temperature ranges is set. The number of the air doors can be two or more, and each air door can be independently controlled to be opened or closed, so that the opening number of the air doors can be adjusted according to the temperature range of the temperature difference to control the refrigerating speed of the refrigerating system.
Furthermore, after the temperature difference between the real-time temperature of the refrigerating chamber and the set refrigerating shutdown temperature is determined, the temperature difference is compared with a preset temperature range, so that a target temperature range to which the current temperature difference of the refrigerating chamber belongs is determined, the first number of the air doors needing to be opened corresponding to the target temperature range is obtained, and the air doors which are consistent with the first number are controlled to be opened.
Wherein, according to different practical applications, the air doors with the same number as the first number can be controlled to be opened in different modes.
As a possible implementation, a first number of dampers may be randomly selected among the set number of dampers and controlled to open, thereby reducing the waiting time for opening the dampers.
As another possible implementation manner, a distinguishing identifier is preset for a set number of air doors, for example, different labels are set for each air door to distinguish each air door, and then, a corresponding opening angle is set for each air door, so that each air door can convey cold air to different directions, thereby further improving the uniformity of heat exchange of the refrigerating chamber. Further, the air doors to be opened are determined in advance according to the temperature range where the temperature difference is located, that is, based on the opening angle of each air door, the number of air doors corresponding to each temperature range is selected from the set number of air doors, for example, the larger the temperature difference is, the larger the angle difference between the selected air doors is, so that the identifiers of the air doors of the first number of corresponding opened angles are determined according to the target temperature interval, and the mapping relationship between the target temperature interval and the identifiers of the opened air doors is formed. Furthermore, according to the target temperature range of the obtained temperature difference, the mapping relation between the temperature interval and the corresponding air door identification is inquired, the identification of the air door needing to be opened is determined, and the air doors with the first quantity consistent with the first quantity are controlled to be opened according to the identification of the air doors.
It will be appreciated that the refrigeration effect of the refrigeration system is also related to the speed of the freezer fan, with the same number of dampers open, the greater the speed of the freezer fan, the faster the refrigeration system can provide refrigeration to the refrigerated compartment. Therefore, in order to further improve the control effect of the refrigeration system, in the embodiment of the present invention, the rotation speed of the freezing fan corresponding to each temperature range may be preset, wherein the larger the temperature difference is, the larger the rotation speed of the freezing fan is. And then, determining the target rotating speed of a freezing fan in the refrigeration system according to the acquired target temperature range, and controlling the freezing fan to adjust the current rotating speed to the target rotating speed for operation.
In order to more clearly describe the implementation process of determining the first number of the air doors to be opened by the refrigeration system and the target rotating speed of the freezing fan according to the target temperature range, controlling to open the air doors consistent with the first number and adjusting the rotating speed of the freezing fan to the target rotating speed for operation, taking setting of N air doors as an example, and combining table 1 to describe in detail below.
Wherein N is the number of the preset air doors, N is a positive integer greater than or equal to two, Tr is the acquired real-time temperature of the refrigerating chamber, and Toff is the refrigerating shutdown temperature. T1-Tn are temperature threshold values of preset division temperature intervals, wherein T1 is the maximum value, Tn is the minimum value, Tn-1 is larger than Tn, and therefore the temperature range where the temperature difference between the real-time temperature and the refrigeration stop temperature of the N refrigeration compartments is located is divided in advance. F1 to Fn are the rotating speeds of the refrigerating fans corresponding to the temperature ranges, wherein F1 is the maximum value, Fn is the minimum value, and Fn-1 is larger than Fn, so that the opening number of the air doors and the rotating speed of the refrigerating fans corresponding to the temperature ranges are preset.
Furthermore, after the temperature difference between the real-time temperature of the refrigerating chamber and the set refrigerating shutdown temperature is obtained, the temperature difference is compared with the temperature range shown in the table 1, the target temperature range where the current temperature difference is located is determined, namely the current refrigerating requirement of the refrigerating chamber is determined, and then the first number of air doors required to be opened by the refrigerating system and the rotating speed of the refrigerating fan are determined. Furthermore, the refrigerating system opens the air doors with the same number as the first number in the N air doors, and adjusts the rotating speed of the freezing fan to the target rotating speed.
For example, when the obtained temperature difference is greater than Tn and less than Tn-1, it is indicated that the real-time temperature of the refrigerating chamber is close to the refrigerating shutdown temperature, the refrigerating demand of the refrigerating chamber is small, and the refrigerating system needs to perform low-speed refrigeration to ensure the uniformity of the temperature of the refrigerating chamber, so that only 1 air door is opened in N air doors, the other N-1 air doors are closed, and the freezing fan is controlled to operate at a low rotation speed Fn. When the obtained temperature difference is larger than Tn-1 and smaller than Tn-2, the difference exists between the real-time temperature of the refrigerating chamber and the refrigerating shutdown temperature, but the difference is smaller, the refrigerating requirement of the refrigerating chamber is smaller, therefore, 2 air doors are opened, other N-2 air doors are closed, and the refrigerating fan is controlled to operate at a lower rotating speed Fn-1. When the obtained temperature difference is larger than T2 and smaller than T1, the fact that the real-time temperature of the refrigerating chamber and the refrigerating shutdown temperature have large temperature difference indicates that the refrigerating demand of the refrigerating chamber is large, and a refrigerating system needs to refrigerate quickly is solved, so that except that 1 air door is closed, other N-1 air doors are controlled to be completely opened, and meanwhile, the refrigerating fan runs at a high rotating speed F2. When the obtained temperature difference is larger than T1, the real-time temperature of the refrigerating chamber is very high, the temperature difference between the real-time temperature of the refrigerating chamber and the refrigerating shutdown temperature is larger, and the refrigerating system needs to refrigerate at the fastest speed to avoid influencing the storage of food in the refrigerating chamber, so that the N air doors are controlled to be fully opened, and meanwhile, the freezing fan runs at the highest rotating speed F1.
The method for controlling the opening of the air door and adjusting the rotating speed of the fan can refer to the description of the above embodiments, and is not repeated herein.
TABLE 1
| Temperature range | Number of open air doors | Rotational speed of refrigerating fan |
| Tr-Toff≥T1 | N | F1 |
| T1＞Tr-Toff≥T2 | N-1 | F2 |
| … | … | … |
| Tn-2＞Tr-Toff≥Tn-1 | 2 | Fn-1 |
| Tn-1＞Tr-Tof≥Tn | 1 | Fn |
From this, according to the temperature range that the difference in temperature is located, confirm the first quantity of the air door that refrigerating system need open to and the target rotational speed of freezing fan, wherein, the difference in temperature is big more, and the quantity of opening of air door is big more, and the target rotational speed of freezing fan is big more, and then control refrigerating system opens the air door unanimous with first quantity and adjusts the rotational speed of freezing fan to the target rotational speed and move, makes refrigerating system's refrigerating speed accord with the refrigeration demand of cold-storage room, has guaranteed the homogeneity of cold-storage room temperature.
In summary, in the control method of the refrigeration system according to the embodiment of the present invention, a set number of parallel air doors is preset for the refrigeration system, the number of the air doors may be two or more, and each air door may be independently controlled to be opened or closed. Therefore, according to the method, the opening number of the air doors is determined according to the temperature difference between the real-time temperature of the refrigerating chamber and the set refrigerating shutdown temperature, and the rotating speed of the freezing fan is correspondingly adjusted, so that the refrigerating speed is adjusted according to the refrigerating requirement, the cold air is uniformly distributed in the refrigerating chamber, the heat exchange of the refrigerating chamber is sufficient, the temperature difference between different positions in the refrigerating chamber after refrigeration is reduced, and the refrigerating uniformity of the refrigerating system is improved.
Based on the above embodiment, after controlling to open the first number of air doors and adjusting the rotation speed of the freezing fan, the temperature of the refrigerating compartment may decrease, and if the refrigeration system continues to control the refrigeration in the same manner, the uniformity of the temperature of the refrigerating compartment may decrease, for example, referring to table 1, if the obtained temperature difference is greater than T2 and less than T1, the refrigerating system controls N-1 air doors to open and adjusts the freezing fan to operate at a higher rotation speed F2 for refrigeration, and then the temperature of the refrigerating compartment decreases, and after a certain time, the temperature decreases to Tn-2, and if the air conditioner maintains the current opening number of the air doors and the rotation speed of the freezing fan, insufficient heat exchange at a position deviated from the air doors may be caused, resulting in uneven temperature of the whole refrigerating compartment. In order to solve the above problems, the present application proposes a specific control method of a refrigeration system.
Fig. 2 is a schematic flow chart of a control method of a refrigeration system according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:
and step 201, controlling to continuously detect the real-time temperature of the refrigerating chamber, and updating the temperature difference by using the continuously detected real-time temperature.
Specifically, after the air doors with the same number as the first number are controlled to be opened and the rotating speed of the freezing fan is adjusted to the target rotating speed to operate, the temperature sensor at the refrigerating chamber is controlled to continuously collect the temperature of the refrigerating chamber, when the temperature of the refrigerating chamber is detected to change, the refrigerating shutdown temperature is subtracted from the real-time temperature of the changed refrigerating chamber to obtain the temperature difference under the current state, and the temperature difference is used as the temperature difference for controlling the refrigerating system to continuously operate.
And step 202, when the updated temperature difference is reduced to be less than or equal to a preset temperature threshold value from the target temperature range, controlling a second number of air doors to be kept open, and closing the remaining air doors which are being opened, wherein the first number is greater than or equal to the second number.
And step 203, controlling the refrigerating fan to operate from the target rotating speed to the set rotating speed.
Specifically, if the updated temperature difference is smaller than the lowest temperature threshold of the original target temperature range, the target temperature range to which the real-time temperature difference belongs is determined again, and the second number of the air doors which are required to be opened and correspond to the current target temperature range and the target rotating speed of the refrigerating fan are obtained. It can be known from the description of the above embodiment that the number of the air doors required to be opened in the corresponding temperature interval when the temperature difference is small and the rotating speed of the freezing fan are smaller than the number of the air doors required to be opened in the corresponding temperature interval when the temperature difference is large and the rotating speed of the freezing fan, so that the second number of the air doors required to be opened at present is smaller than the first number, and the target rotating speed of the freezing fan needs to be reduced. And further, controlling the second quantity of air doors to be kept open, closing other air doors which are still being opened in the first quantity of air doors, and adjusting the rotating speed of the freezing fan to operate from the target rotating speed in the original target temperature interval to the set rotating speed in the current temperature interval.
And if the updated temperature difference is still larger than or equal to the lowest temperature threshold value of the original target temperature range, continuously opening the air doors of the current number, and controlling the refrigerating fan to operate at the same target rotating speed.
For example, if the refrigeration system is provided with a damper 1 and a damper 2, the opening angle of the damper 1 is greater than that of the damper 2. When the temperature difference between the real-time temperature of the obtained refrigerating chamber and the set refrigerating shutdown temperature is greater than T1, the control damper 1 and the damper 2 are all opened, and the freezing fan operates at a high speed F1. Further, when the temperature sensor in the refrigerating compartment detects that the temperature difference is reduced to be less than T1 and greater than T2, the air door 2 is controlled to be closed, only the air door 1 is kept open, and the freezing fan is adjusted to operate from a high speed F1 to a medium speed F2. Furthermore, when the temperature sensor in the refrigerating compartment detects that the temperature difference is reduced to be less than T2 and greater than T3, the damper 2 is controlled to be opened, the damper 1 is controlled to be closed, and the freezing fan is adjusted to operate from the medium speed F2 to the low speed F3.
According to the control method of the refrigeration system, the opening number of the air doors and the rotating speed of the freezing fan are continuously adjusted according to the updated temperature difference, so that the opening number of the air doors and the rotating speed of the freezing fan meet the current refrigeration requirement of the refrigerated compartment after refrigeration, the temperature of the refrigerated compartment is ensured to be continuously uniform, and the control timeliness of the refrigeration system is improved.
In order to implement the above embodiments, the embodiment of the present invention further provides a control device of a refrigeration system. Fig. 3 is a schematic structural diagram of a control device of a refrigeration system according to an embodiment of the present invention.
As shown in fig. 3, the apparatus includes: a first acquisition module 100, a second acquisition module 200, and a control module 300.
The first obtaining module 100 is configured to obtain a real-time temperature of a refrigerating compartment in the refrigeration system when the refrigeration system is in a refrigeration mode.
And a second obtaining module 200 for obtaining a temperature difference between the real-time temperature and the set refrigeration shutdown temperature.
The control module 300 is configured to obtain a target temperature range where the temperature difference is located, determine a first number of air doors that the refrigeration system needs to open according to the target temperature range, and control to open the air doors that are the same as the first number.
In a possible implementation manner of the embodiment of the present invention, the first obtaining module 100 is further configured to detect whether a refrigeration request is received, control the refrigeration system to enter a refrigeration mode if the refrigeration request is detected, and control all dampers in the refrigeration system to be in a closed state if the refrigeration request is not detected.
Further, in a possible implementation manner of the embodiment of the present invention, the control module 300 is further configured to determine a target rotation speed of a freezing fan in the refrigeration system according to the target temperature range, and then control the freezing fan to operate from a current rotation speed to the target rotation speed.
In a possible implementation manner of the embodiment of the present invention, the control module 300 is specifically configured to randomly control to open the air doors in accordance with the first number; or determining the identification of the air doors needing to be opened according to the target temperature range, and controlling to open the air doors consistent with the first quantity according to the identification of the air doors, wherein different target temperature ranges correspond to different quantities of the air doors needing to be opened.
The larger the temperature difference is, the larger the number of the dampers opened by the control module 300 is, and the larger the target rotating speed of the adjusted refrigerating fan is.
In a possible implementation manner of the embodiment of the present invention, after the freezing fan is controlled to operate from the current rotational speed to the target rotational speed, the control module 300 is further configured to continue to detect the real-time temperature of the refrigerating compartment, update the temperature difference by using the continuously detected real-time temperature, and when the updated temperature difference is reduced from the target temperature range to be less than or equal to the preset temperature threshold, control a second number of the air doors to remain open, close the remaining air doors that are being opened, where the first number is greater than or equal to the second number, and finally, control the freezing fan to operate from the target rotational speed to the set rotational speed.
It should be noted that the foregoing explanation of the embodiment of the control method of the refrigeration system is also applicable to the control device of the refrigeration system of the embodiment, and the implementation principle thereof is similar, and therefore, the detailed description is omitted here.
In summary, in the control device of the refrigeration system according to the embodiment of the present invention, the real-time temperature of the refrigeration compartment in the refrigeration system is first obtained, then the temperature difference between the real-time temperature and the set refrigeration stop temperature is determined, and finally the target temperature range where the temperature difference is located is obtained, and then the first number of the air doors to be opened in the preset number of parallel air doors in the refrigeration system is determined according to the target temperature range, and the air doors that are the same as the first number are controlled to be opened. From this, the device confirms the quantity of opening of air door according to the difference in temperature between the real-time temperature of cold-storage room and the cold-storage shutdown temperature of setting for to the rotational speed of freezing fan is adjusted correspondingly, thereby makes air conditioning evenly distributed at cold-storage room, has guaranteed that cold-storage room heat transfer is abundant, has reduced the difference in temperature of cold-storage room, has improved the refrigerated homogeneity of refrigerating system.
In order to implement the above embodiments, the embodiment of the present invention further provides a refrigeration system, which includes the control device of the refrigeration system as described in the above embodiments, and a plurality of dampers.
In order to implement the above embodiments, the present invention further provides an electronic device.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 4, the electronic device 120 includes: a processor 121 and a memory 122; the memory 122 is used for storing executable program code; the processor 121 executes a program corresponding to the executable program code by reading the executable program code stored in the memory 122, for implementing the control method of the refrigeration system as described in the above embodiment.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the control method of the refrigeration system according to the above embodiments.
In the description of the present specification, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (15)
1. A method of controlling a refrigeration system, the refrigeration system including a plurality of dampers; the method comprises the following steps:
when the refrigeration system is in a refrigeration mode, acquiring the real-time temperature of a refrigeration compartment in the refrigeration system;
acquiring the temperature difference between the real-time temperature and the set refrigeration shutdown temperature;
and acquiring a target temperature range where the temperature difference is positioned, determining a first number of air doors needing to be opened by the refrigeration system according to the target temperature range, and controlling to open the air doors consistent with the first number.
2. The method of controlling a refrigeration system of claim 1, further comprising:
determining a target rotating speed of a freezing fan in the refrigeration system according to the target temperature range;
and controlling the freezing fan to adjust the current rotating speed to the target rotating speed for operation.
3. The method of controlling a refrigeration system of claim 2, wherein the controlling the freezing fan to operate after adjusting the current speed to the target speed further comprises:
controlling to continuously detect the real-time temperature of the refrigerating chamber, and updating the temperature difference by using the continuously detected real-time temperature;
when the updated temperature difference is reduced to be less than or equal to a preset temperature threshold value from the target temperature range, controlling a second number of air doors to be kept open, and closing the rest of the air doors which are being opened; wherein the first number is greater than or equal to the second number;
and controlling the freezing fan to adjust the target rotating speed to a set rotating speed for operation.
4. A control method of a refrigerating system as set forth in claim 2, wherein the larger the temperature difference, the larger the opening number of the damper, and the larger the target rotation speed of the freezing fan.
5. A method of controlling a refrigeration system according to claim 1, wherein said controlling to open a damper corresponding to said first number comprises:
randomly controlling to open the air doors in accordance with the first number; alternatively, the first and second electrodes may be,
determining the identification of the air doors needing to be opened according to the target temperature range, and controlling to open the air doors with the first quantity according to the identification of the air doors; wherein different target temperature ranges correspond to different numbers of dampers that need to be opened.
6. The method of claim 1, further comprising, prior to obtaining a real-time temperature of a refrigeration compartment in the refrigeration system while the refrigeration system is in the cooling mode:
detecting whether a refrigeration request is received or not, and controlling the refrigeration system to refrigerate to a refrigeration compartment if the refrigeration request is detected;
controlling all dampers in the refrigeration system to be in a closed state if the cooling request is not detected.
7. A control for a refrigeration system, said refrigeration system including a plurality of dampers; the control device of the refrigeration system comprises:
the first acquisition module is used for acquiring the real-time temperature of a refrigerating chamber in the refrigerating system when the refrigerating system is in a refrigerating mode;
the second acquisition module is used for acquiring the temperature difference between the real-time temperature and the set refrigeration shutdown temperature;
and the control module is used for acquiring a target temperature range where the temperature difference is positioned, determining a first number of air doors needing to be opened by the refrigeration system according to the target temperature range, and controlling to open the air doors consistent with the first number.
8. The control device of claim 7, wherein the control module is further configured to:
determining a target rotating speed of a freezing fan in the refrigeration system according to the target temperature range;
and controlling the freezing fan to adjust the current rotating speed to the target rotating speed for operation.
9. The control device of claim 8, wherein after controlling the freezing fan to operate from the current speed to the target speed, the control module is further configured to:
controlling to continuously detect the real-time temperature of the refrigerating chamber, and updating the temperature difference by using the continuously detected real-time temperature;
when the updated temperature difference is reduced to be less than or equal to a preset temperature threshold value from the target temperature range, controlling a second number of air doors to be kept open, and closing the rest of the air doors which are being opened; wherein the first number is greater than or equal to the second number;
and controlling the freezing fan to adjust the target rotating speed to a set rotating speed for operation.
10. The control device of claim 8, wherein the greater the temperature difference, the greater the number of dampers the control module opens, and the greater the target speed of the refrigeration fan is adjusted.
11. The control device according to claim 7, wherein the control module is specifically configured to:
randomly controlling to open the air doors in accordance with the first number; alternatively, the first and second electrodes may be,
determining the identification of the air doors needing to be opened according to the target temperature range, and controlling to open the air doors with the first quantity according to the identification of the air doors; wherein different target temperature ranges correspond to different numbers of dampers that need to be opened.
12. The control device of claim 7, wherein prior to obtaining the real-time temperature of the refrigeration compartment in the refrigeration system, the first obtaining module is further configured to:
detecting whether a refrigeration request is received, and controlling the refrigeration system to enter the refrigeration mode if the refrigeration request is detected;
controlling all dampers in the refrigeration system to be in a closed state if the cooling request is not detected.
13. A refrigeration system, comprising: a control device for the refrigeration system of any of claims 7 to 12.
14. An electronic device comprising a memory, a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, for implementing the control method of the refrigeration system according to any one of claims 1 to 6.
15. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out a method of controlling a refrigeration system according to any one of claims 1-6.
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| CN111109187B (en) * | 2020-01-16 | 2022-04-12 | 成都工贸职业技术学院 | Transportation and preservation device and method for dormant living bodies |
| CN111649533B (en) * | 2020-05-21 | 2021-08-31 | 四川虹美智能科技有限公司 | Air door control method, device and system |
| CN112393501B (en) * | 2020-11-19 | 2021-11-16 | 珠海格力电器股份有限公司 | Refrigerator, control method of refrigerator, computer-readable storage medium, and processor |
| CN112710122B (en) * | 2020-12-28 | 2022-07-22 | 有研国晶辉新材料有限公司 | Chalcogenide glass air cooling device and air cooling control method thereof |
| CN112728847A (en) * | 2021-01-22 | 2021-04-30 | 珠海格力电器股份有限公司 | Refrigerator and control method thereof |
| CN113551477A (en) * | 2021-07-23 | 2021-10-26 | 珠海格力电器股份有限公司 | Air-cooled refrigerator temperature control method, air-cooled refrigerator and computer readable storage medium |
| CN113693403B (en) * | 2021-08-24 | 2022-07-22 | 珠海格力电器股份有限公司 | Closed refrigeration display cabinet control method and device and closed refrigeration display cabinet |
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