CN111351306A - Refrigeration equipment, control method and control device thereof and storage medium - Google Patents
Refrigeration equipment, control method and control device thereof and storage medium Download PDFInfo
- Publication number
- CN111351306A CN111351306A CN202010162613.0A CN202010162613A CN111351306A CN 111351306 A CN111351306 A CN 111351306A CN 202010162613 A CN202010162613 A CN 202010162613A CN 111351306 A CN111351306 A CN 111351306A
- Authority
- CN
- China
- Prior art keywords
- freezing
- refrigeration
- evaporator
- outlet
- refrigerating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
-
- 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
- F25D2600/00—Control issues
- F25D2600/02—Timing
-
- 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The embodiment of the invention provides a refrigeration device, a control method and a control device thereof, and a storage medium, and belongs to the field of electric appliances. The refrigeration equipment comprises a compressor, a refrigeration evaporator and a freezing evaporator, wherein the compressor is respectively connected with the refrigeration evaporator and the freezing evaporator through electric valves, and the control method comprises the following steps: determining a first temperature difference between a refrigerating compartment temperature and a refrigerating target temperature and a second temperature difference between a freezing compartment temperature and a freezing target temperature when both the refrigerating compartment and the freezing compartment request refrigeration; when the first temperature difference is larger than or equal to the second temperature difference, the refrigeration outlet of the electric valve is opened; and when the first temperature difference is smaller than the second temperature difference, the freezing outlet of the electric valve is opened. Therefore, the prior compartment can be determined to be refrigerated according to the difference value between the current compartment temperature of the refrigerating compartment and the current compartment temperature of the freezing compartment and the corresponding target temperature, so that the refrigerating capacity of the refrigerating equipment can be more reasonably distributed, and the food storage is more facilitated.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to a refrigeration device, a control method and a control device thereof and a storage medium.
Background
Currently, some dual-system refrigerators are provided with an evaporator in each of a refrigerating chamber and a freezing chamber, and switch refrigerants to the refrigerating evaporator and the freezing evaporator through an electric valve for one inlet and two outlets, respectively, to refrigerate the refrigerating chamber and the freezing chamber, respectively. When the refrigerator refrigerates, the compressor is started, and the refrigerant compressed by the compressor enters the electric valve. The refrigerating priority of the refrigerating chamber is higher than that of the freezing chamber, namely when the refrigerating chamber requests refrigeration, a refrigerating outlet of the electric valve is opened, and the refrigerant flows to the refrigerating evaporator for refrigeration. When the refrigerating chamber does not request refrigeration, the freezing outlet of the electric valve is opened, the refrigerant flows to the freezing evaporator for refrigeration, and when the refrigerating chamber and the freezing chamber do not request refrigeration, the freezing outlet of the electric valve is kept opened, but the compressor is shut down.
Because the refrigeration logic of current refrigerator is that the priority of walk-in is higher to when walk-in and freezer all requested to refrigerate, can be preferential to refrigerate the walk-in, can lead to the temperature of freezer in time to drop to the target temperature like this, under the higher condition of temperature in the freezer, can influence the storage quality of freezing indoor food, thereby reduce user experience.
Disclosure of Invention
To at least partially solve the above problems in the prior art, an object of an embodiment of the present invention is to provide a refrigeration apparatus, a control method and a control device thereof, and a storage medium.
In order to achieve the above object, in a first aspect of embodiments of the present invention, there is provided a control method for a refrigeration apparatus including a compressor, a refrigerating evaporator provided in a refrigerating chamber, and a freezing evaporator provided in a freezing chamber, the compressor being connected to the refrigerating evaporator and the freezing evaporator respectively through an electric valve, a refrigerating outlet and a freezing outlet of the electric valve being alternately openable to deliver refrigerant compressed by the compressor to the refrigerating evaporator and the freezing evaporator respectively, the control method comprising: determining a first temperature difference between a current refrigerating compartment temperature of the refrigerating compartment and a refrigerating target temperature and a second temperature difference between a current freezing compartment temperature of the freezing compartment and a freezing target temperature in a case where both the refrigerating compartment and the freezing compartment request refrigeration; opening a refrigeration outlet of the electric valve to deliver the refrigerant to the refrigeration evaporator if the first temperature difference is greater than or equal to the second temperature difference; and when the first temperature difference is smaller than the second temperature difference, opening a freezing outlet of the electric valve to convey the refrigerant to the freezing evaporator.
Optionally, the chilled outlet or the chilled outlet is maintained for a preset length of time after opening.
Optionally, the control method further includes: after the cold storage outlet or the freezing outlet is opened for a preset time, re-determining the first temperature difference and the second temperature difference; opening a refrigeration outlet of the electric valve when the first temperature difference is greater than or equal to the second temperature difference; and opening a freezing outlet of the electric valve when the first temperature difference is smaller than the second temperature difference.
Optionally, the preset time period ranges from 6 minutes to 10 minutes.
Optionally, the control method further includes: closing the refrigeration outlet and/or the compressor in case the refrigeration compartment temperature reaches the refrigeration target temperature; closing the freezing outlet and/or the compressor in case the freezing compartment temperature reaches the freezing target temperature.
Optionally, the control method further includes: acquiring a first number of times that the refrigerating chamber reaches the refrigerating target temperature and a second number of times that the freezing chamber reaches the freezing target temperature; and under the condition that at least one of the first times and the second times is zero, if the refrigerating chamber and the freezing chamber both request refrigeration, controlling the opening of an outlet of the electric valve corresponding to one of the refrigerating evaporator and the freezing evaporator with higher priority.
Optionally, the refrigeration evaporator is higher priority than the freeze evaporator.
Optionally, an outlet of the compressor is connected to an inlet of the electric valve, an inlet of the refrigeration evaporator is connected to a refrigeration outlet of the electric valve, and an inlet of the freezing evaporator is connected to an outlet of the refrigeration evaporator and a freezing outlet of the electric valve, respectively.
In a second aspect of an embodiment of the present invention, there is provided a control device for a refrigeration apparatus, the control device including: the control method for the refrigeration equipment comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the control method for the refrigeration equipment.
In a third aspect of embodiments of the present invention, there is provided a refrigeration apparatus comprising: a compressor; the refrigeration evaporator is arranged in the refrigeration chamber; a freezing evaporator arranged in the freezing chamber; the electric valve is used for connecting the compressor with the refrigerating evaporator and the freezing evaporator respectively, and a refrigerating outlet and a freezing outlet of the electric valve can be opened alternately so as to convey the refrigerant compressed by the compressor to the refrigerating evaporator and the freezing evaporator respectively; and the control device for the refrigeration equipment.
Optionally, an outlet of the compressor is connected to an inlet of the electric valve, an inlet of the refrigeration evaporator is connected to a refrigeration outlet of the electric valve, and an inlet of the freezing evaporator is connected to an outlet of the refrigeration evaporator and a freezing outlet of the electric valve, respectively.
In a fourth aspect of embodiments of the present invention, there is provided a machine-readable storage medium having stored thereon instructions for enabling a processor to execute the above-described control method for a refrigeration appliance when executed by the processor.
Through the technical scheme, under the condition that the refrigerating chamber and the freezing chamber of the refrigerating device both request refrigeration, the prior compartment can be determined according to the difference value between the current compartment temperature of the refrigerating chamber and the current compartment temperature of the freezing chamber and the corresponding target temperature, so that the refrigeration capacity of the refrigerating device can be more reasonably distributed, the food storage is more facilitated, and the use experience of a user is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a flowchart illustrating a control method for a refrigeration apparatus according to an embodiment of the present invention;
FIG. 2 illustrates a block diagram of a refrigeration system of a refrigeration appliance provided in accordance with one embodiment of the present invention;
FIG. 3 illustrates a flow chart of a control method for a refrigeration appliance according to an alternative embodiment of the present invention; and
fig. 4 is a flowchart illustrating a control method for a refrigeration apparatus according to an embodiment of the present invention.
Description of the reference numerals
10 compressor 20 electric valve
31 refrigeration evaporator 32 refrigeration evaporator
40 control device
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a control method for a refrigeration apparatus according to an embodiment of the present invention. Fig. 2 is a block diagram schematically illustrating a refrigeration system of a refrigeration apparatus according to an embodiment of the present invention. As shown in fig. 1 and 2, an embodiment of the present invention provides a control method for a refrigeration apparatus. The refrigeration equipment can comprise a compressor 10, a refrigeration evaporator 31 arranged in a refrigeration chamber and a freezing evaporator 32 arranged in a freezing chamber, wherein the compressor 10 is respectively connected with the refrigeration evaporator 31 and the freezing evaporator 32 through an electric valve 20, and a refrigeration outlet and a freezing outlet of the electric valve 20 can be alternately opened so as to respectively convey refrigerant compressed by the compressor 10 to the refrigeration evaporator 31 and the freezing evaporator 32. The control method for the refrigeration equipment can comprise the following steps:
in step S11, in a case where both the refrigerating compartment and the freezing compartment request cooling, a first temperature difference between a current refrigerating compartment temperature of the refrigerating compartment and a refrigerating target temperature and a second temperature difference between a current freezing compartment temperature of the freezing compartment and a freezing target temperature are determined.
Step S12, opening the refrigeration outlet of the electric valve to convey the refrigerant to the refrigeration evaporator under the condition that the first temperature difference is larger than or equal to the second temperature difference; and in the case that the first temperature difference is smaller than the second temperature difference, opening a freezing outlet of the electric valve to convey the refrigerant to the freezing evaporator.
So, all request under the refrigerated condition when refrigeration plant's walk-in and freezer, can confirm that the priority refrigerates to which room according to the difference of the current room temperature of walk-in and freezer and the target temperature that corresponds to can ensure that refrigeration plant's cold volume distributes more rationally, and then more be favorable to the food storage, and improve user's use and experience.
In particular, the refrigeration device may be a refrigerator or freezer or the like, and the refrigeration device may comprise at least two compartments, a refrigerating compartment and a freezing compartment. A refrigerating evaporator 31 may be provided in the refrigerating chamber, and a freezing evaporator 32 may be provided in the freezing chamber. The refrigerating evaporator 31 and the freezing evaporator 32 share one compressor 10, and the compressor 10 may be connected to the refrigerating evaporator 31 and the freezing evaporator 32 through an electric valve 20, respectively. The electric valve 20 has an inlet and two outlets, the inlet of the electric valve 20 is connected to the compressor 10, the refrigerating outlet is connected to the inlet of the refrigerating evaporator 31, and the freezing outlet is connected to the inlet of the freezing evaporator 32. The refrigeration outlet and the freezing outlet of the electric valve 20 can be alternatively communicated, and when the refrigeration outlet is communicated, the refrigerant compressed by the compressor 10 can be conveyed to the refrigeration evaporator 31 to refrigerate the refrigeration chamber; when the freezing outlet is turned on, the refrigerant compressed by the compressor 10 may be delivered to the freezing evaporator 32 to cool the freezing chamber. A refrigerating temperature sensor for detecting a temperature inside the refrigerating chamber (i.e., a refrigerating compartment temperature) and a freezing temperature sensor for detecting a temperature inside the freezing compartment (i.e., a freezing compartment temperature) may be respectively provided in the refrigerating compartment and the freezing compartment. The refrigerating chamber requests refrigeration under the condition that the temperature of the refrigerating chamber reaches the temperature of a refrigerating starting point; in the case where the freezing compartment temperature reaches the freezing start-up point temperature, the freezing compartment requests cooling.
In the working process of the refrigerating equipment, under the condition that the refrigerating chamber and the freezing chamber simultaneously request refrigeration, the current refrigerating chamber temperature of the refrigerating chamber and the current freezing chamber temperature of the freezing chamber can be respectively obtained from the refrigerating temperature sensor and the freezing temperature sensor, and the refrigerating target temperature of the refrigerating chamber and the freezing target temperature of the freezing chamber are determined according to the refrigerating gear or the refrigerating temperature set by a user. Thereafter, a first temperature difference between the refrigerating compartment temperature and the refrigerating target temperature and a second temperature difference between the freezing compartment temperature and the freezing target temperature are determined. After determining the first temperature difference and the second temperature difference, the first temperature difference and the second temperature difference may be compared. If the first temperature difference is greater than or equal to the second temperature difference, it indicates that the current temperature of the refrigerating chamber is farther from the target temperature, and thus the refrigerating outlet of the electric valve 20 may be opened to deliver the refrigerant to the refrigerating evaporator 31, thereby refrigerating the refrigerating chamber. If the first temperature difference is less than the second temperature difference, indicating that the current temperature of the freezer compartment is further away from the target temperature, the freezer outlet of the electric valve 20 may be opened to deliver refrigerant to the freezer evaporator 32 to cool the freezer compartment.
Wherein, the cold storage outlet or the freezing outlet can be kept in the opening state for a preset time after being opened every time. After the cold storage outlet or the freezing outlet is opened for a preset time, the first temperature difference and the second temperature difference are determined again, and the outlet, which needs to be opened, of the electric valve 20 is determined according to the comparison result of the first temperature difference and the second temperature difference. In this way, frequent switching of the electric valve 20 between opening different outlets can be avoided, thereby prolonging the service life of the electric valve 20. For example, after the cold storage outlet is opened for a preset time period, the current cold storage room temperature and the current freezing room temperature can be obtained again, and the first temperature difference and the second temperature difference can be determined according to the obtained cold storage room temperature and the obtained freezing room temperature. If the redetermined first temperature difference is greater than or equal to the second temperature difference, the opening of the refrigerating outlet of the electric valve 20 is maintained again for the preset time period, and if the redetermined first temperature difference is less than the second temperature difference, the electric valve 20 opens the freezing outlet and the refrigerating outlet is closed. The preset time period may range from 6 minutes to 10 minutes, for example, the preset time period may be 6 minutes, 7 minutes, or 8 minutes.
In the process of opening the refrigeration outlet of the electric valve 20, if the temperature of the refrigeration compartment reaches the target refrigeration temperature, the refrigeration outlet of the electric valve 20 (i.e., the electric valve is switched from the refrigeration outlet opening to the freezing outlet opening) and/or the compressor 10 is immediately closed. Accordingly, in the process of opening the freezing outlet of the electric valve 20, if the freezing compartment temperature of the freezing compartment reaches the freezing target temperature, the freezing outlet of the electric valve 20 (i.e., the electric valve is switched from the freezing outlet opening to the refrigerating outlet opening) and/or the compressor 10 is immediately closed.
Fig. 3 is a flowchart illustrating a control method for a refrigeration apparatus according to an alternative embodiment of the present invention. As shown in fig. 3, in an alternative embodiment of the present invention, the control method may further include:
in step S21, a first number of times that the refrigerating compartment reaches a refrigerating target temperature and a second number of times that the freezing compartment reaches a freezing target temperature are acquired.
Step S22, if at least one of the first frequency and the second frequency is zero, if the refrigerating chamber and the freezing chamber both request cooling, the outlet of the electric valve corresponding to the higher priority one of the refrigerating evaporator and the freezing evaporator is controlled to be opened.
Specifically, after the refrigeration apparatus is powered on, the number of times the refrigerating compartment reaches the refrigerating target temperature (i.e., the first number) and the number of times the freezing compartment reaches the freezing target temperature (i.e., the second number) may be acquired. If either of the first and second times is zero, i.e., at least one of the fresh food and freezer compartments never reaches its corresponding target temperature, it is an indication that the refrigeration appliance was first powered up and that the temperatures of the fresh food and freezer compartments are both high. At this time, if both the refrigerating compartment and the freezing compartment request cooling, the outlet, which the electric valve 20 needs to be opened, may be determined according to the priorities of the refrigerating evaporator 31 and the freezing evaporator 32. For example, if the refrigerating evaporator 31 has a higher priority than the freezing evaporator 32, i.e. needs to preferentially cool the refrigerating compartment, the refrigerating outlet of the electric valve 20 is opened first to deliver refrigerant to the refrigerating evaporator 31 to cool the refrigerating compartment in case that both the refrigerating compartment and the freezing compartment require cooling after the refrigerating apparatus is powered on for the first time. After the temperature of the refrigerating chamber reaches the refrigerating target temperature, the electric valve 20 is switched to a freezing outlet to be opened so as to deliver the refrigerant to the freezing evaporator 32 to refrigerate the freezing chamber, and after the temperature of the freezing chamber reaches the freezing target temperature, the compressor 10 is closed.
In some embodiments, the refrigeration evaporator 31 may be prioritized over the freezing evaporator 32. In this case, the freezing evaporator may be connected in series to the rear side of the refrigerating evaporator. For example, as shown in fig. 2, the outlet of the compressor 10 may be connected to the inlet of the electric valve 20, the inlet of the refrigerating evaporator 31 may be connected to the refrigerating outlet of the electric valve 20, and the inlet of the freezing evaporator 32 may be connected to the outlet of the refrigerating evaporator 31 and the freezing outlet of the electric valve 20, respectively. Thus, the refrigerant is supplied to the freezing evaporator 32 after passing through the refrigerating evaporator 31, and the refrigerating chamber is cooled and the freezing chamber is slowly cooled. Note that, in fig. 2, solid lines indicate refrigerant delivery lines, arrows indicate the flow direction of refrigerant, and broken lines indicate electric control connection lines.
Fig. 4 is a flowchart illustrating a control method for a refrigeration apparatus according to an embodiment of the present invention. As shown in fig. 4 and 2, in one embodiment of the present invention, the outlet of the compressor 10 is connected to the inlet of the electric valve 20, the inlet of the refrigeration evaporator 31 is connected to the refrigeration outlet of the electric valve 20, and the inlet of the freezing evaporator 32 is connected to the outlet of the refrigeration evaporator 31 and the freezing outlet of the electric valve 20, respectively, that is, the freezing evaporator 32 is connected in series to the rear side of the refrigeration evaporator 31. After the refrigeration equipment is powered on, an instruction of requesting refrigeration of the refrigerating chamber and/or the freezing chamber can be obtained, and whether the refrigerating chamber and the freezing chamber reach respective corresponding target temperatures or not is judged.
If at least one of the fresh food compartment and the freezer compartment never reaches its corresponding target temperature, it is an indication that the refrigeration appliance was first powered up, when the temperatures of both the fresh food compartment and the freezer compartment are high. In this case, since the target temperature of the refrigerating compartment is relatively higher and the freezing evaporator 32 is generally connected in series to the rear side of the refrigerating evaporator 31, the refrigerating compartment may be preferentially cooled such that the refrigerating compartment reaches the refrigerating target temperature first. At this time, since the freezing evaporator 32 is connected in series to the rear side of the refrigerating evaporator 31, the freezing chamber is also cooled slowly. Specifically, when the refrigerating chamber requests refrigeration, the refrigerating outlet of the electric valve 20 is opened and the compressor 10 is started, regardless of whether the freezing chamber requests refrigeration or not; when the refrigerating chamber does not request refrigeration but the freezing chamber requests refrigeration, the freezing outlet of the electric valve 20 is opened and the compressor 10 is started; when neither the refrigerating chamber nor the freezing chamber requests cooling, the compressor 10 is turned off and the electric valve 20 is switched to the freezing outlet opening state.
If both the fresh food compartment and the freezer compartment have reached their respective target temperatures, this indicates that the refrigeration appliance is currently operating steadily. When the refrigerating equipment is in a stable operation state, when the refrigerating chamber requests refrigeration but the freezing chamber does not request refrigeration, the refrigerating outlet of the electric valve 20 is opened and the compressor 10 is started to refrigerate the refrigerating chamber; when the freezing chamber requests cooling but the refrigerating chamber does not request cooling, the freezing outlet of the electric valve 20 is opened and the compressor 10 is turned on to cool the freezing chamber. When neither the refrigerating chamber nor the freezing chamber requests cooling, the compressor 10 is turned off and the electric valve 20 is switched to the freezing outlet opening state. When both the refrigerating compartment and the freezing compartment request cooling, the current refrigerating compartment temperature TR1 and the refrigerating target temperature TR2 are acquired, and the current freezing compartment temperature TF1 and the freezing target temperature TF2 are acquired. Subsequently, a first temperature difference TR-TR 1-TR2 between the refrigerating compartment temperature and the refrigerating target temperature and a second temperature difference TF-TF 1-TF2 between the freezing compartment temperature and the freezing target temperature are calculated. Then, the magnitude of the first temperature difference TR and the second temperature difference TF are compared. If TR > is TF, the current temperature of the refrigerating chamber is more distant from the target temperature which needs to be reached by the refrigerating chamber, namely the urgency degree of the refrigerating chamber for requesting refrigeration is higher, therefore, the refrigerating outlet of the electric valve 20 is opened, the freezing outlet is closed, and the refrigerating chamber is preferentially refrigerated. If TR < TF, it indicates that the current temperature of the freezing chamber is farther from the target temperature that the freezing chamber needs to reach, i.e. the urgency of the freezing chamber requesting cooling is higher, so the freezing outlet of the electric valve 20 is opened and the refrigerating outlet is closed, and the freezing chamber is preferentially cooled. In addition, in order to avoid frequent switching of the electric valve 20 between opening the refrigeration outlet and opening the freezing outlet due to the relatively close first temperature difference TR and the second temperature difference TF, the opening of the refrigeration outlet may be maintained for a preset time (for example, 8 minutes) after the electric valve 20 is switched to the refrigeration outlet opening or the freezing outlet opening each time, unless the compartment corresponding to the refrigeration outlet does not request cooling any more. So, after refrigeration plant steady operation, can request refrigerated urgent degree control motorised valve 20 corresponding export to open according to different compartments to carry out rational distribution to the cold volume of each compartment, and then more be favorable to the storage of food among the refrigeration plant, improve user's use and experience, still have energy-conserving power saving's effect simultaneously.
Embodiments of the present invention also provide a control apparatus for a refrigeration apparatus, which may include: the control method for the refrigeration equipment comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor executes the computer program to realize the control method for the refrigeration equipment. The control device may include a processor, a microcontroller, a chip or a main control board, etc.
As shown in fig. 2, an embodiment of the present invention also provides a refrigeration apparatus, which may include: compressor 10, electric valve 20, refrigerating evaporator 31, freezing evaporator 32 and control device 40. The refrigeration evaporator 31 is provided in the refrigeration compartment, and the freezing evaporator 32 is provided in the freezing compartment. The electric valve 20 is used to connect the compressor 10 with the refrigerating evaporator 31 and the freezing evaporator 32, respectively. The refrigerating outlet and the freezing outlet of the electric valve 20 can be alternately opened to deliver the refrigerant compressed by the compressor 10 to the refrigerating evaporator 31 and the freezing evaporator 32, respectively. The control device 40 is connected to the compressor 10 and the electric valve 20 and is used to execute the above-described control method for the refrigeration appliance. Wherein, the refrigeration equipment can be a refrigerator or an ice chest and the like.
Furthermore, the present invention also provides a machine-readable storage medium, which stores instructions thereon, and the instructions are used for enabling a processor to execute the control method for the refrigeration equipment when the instructions are executed by the processor.
While the invention has been described in detail with reference to the drawings, the invention is not limited to the details of the embodiments, and various simple modifications can be made within the technical spirit of the embodiments of the invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.
Those skilled in the art will appreciate that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes instructions for causing a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the embodiments of the present invention.
Claims (12)
1. A control method for a refrigeration apparatus, the refrigeration apparatus including a compressor, a refrigeration evaporator disposed in a refrigeration chamber, and a freezing evaporator disposed in a freezing chamber, the compressor being connected to the refrigeration evaporator and the freezing evaporator respectively through an electric valve, a refrigeration outlet and a freezing outlet of the electric valve being capable of being opened alternately to deliver refrigerant compressed by the compressor to the refrigeration evaporator and the freezing evaporator respectively, the control method comprising:
determining a first temperature difference between a current refrigerating compartment temperature of the refrigerating compartment and a refrigerating target temperature and a second temperature difference between a current freezing compartment temperature of the freezing compartment and a freezing target temperature in a case where both the refrigerating compartment and the freezing compartment request refrigeration;
opening a refrigeration outlet of the electric valve to deliver the refrigerant to the refrigeration evaporator if the first temperature difference is greater than or equal to the second temperature difference;
and when the first temperature difference is smaller than the second temperature difference, opening a freezing outlet of the electric valve to convey the refrigerant to the freezing evaporator.
2. The control method of claim 1, wherein the refrigerating outlet or the freezing outlet is maintained for a preset time period after being opened.
3. The control method according to claim 2, characterized by further comprising:
after the cold storage outlet or the freezing outlet is opened for a preset time, re-determining the first temperature difference and the second temperature difference;
opening a refrigeration outlet of the electric valve when the first temperature difference is greater than or equal to the second temperature difference;
and opening a freezing outlet of the electric valve when the first temperature difference is smaller than the second temperature difference.
4. The control method according to claim 2, wherein the preset time period ranges from 6 minutes to 10 minutes.
5. The control method according to claim 2, characterized by further comprising:
closing the refrigeration outlet and/or the compressor in case the refrigeration compartment temperature reaches the refrigeration target temperature;
closing the freezing outlet and/or the compressor in case the freezing compartment temperature reaches the freezing target temperature.
6. The control method according to claim 1, characterized by further comprising:
acquiring a first number of times that the refrigerating chamber reaches the refrigerating target temperature and a second number of times that the freezing chamber reaches the freezing target temperature;
and under the condition that at least one of the first times and the second times is zero, if the refrigerating chamber and the freezing chamber both request refrigeration, controlling the opening of an outlet of the electric valve corresponding to one of the refrigerating evaporator and the freezing evaporator with higher priority.
7. The control method of claim 6, wherein the refrigeration evaporator is given a higher priority than the freeze evaporator.
8. The control method according to any one of claims 1 to 7, wherein an outlet of the compressor is connected to an inlet of the electric valve, an inlet of the refrigerating evaporator is connected to a refrigerating outlet of the electric valve, and an inlet of the freezing evaporator is connected to an outlet of the refrigerating evaporator and a freezing outlet of the electric valve, respectively.
9. A control device for a refrigeration appliance, characterized in that it comprises: memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the computer program to implement the control method for a refrigeration device according to any one of claims 1 to 8.
10. A refrigeration appliance, characterized in that it comprises:
a compressor;
the refrigeration evaporator is arranged in the refrigeration chamber;
a freezing evaporator arranged in the freezing chamber;
the electric valve is used for connecting the compressor with the refrigerating evaporator and the freezing evaporator respectively, and a refrigerating outlet and a freezing outlet of the electric valve can be opened alternately so as to convey the refrigerant compressed by the compressor to the refrigerating evaporator and the freezing evaporator respectively; and
the control device for a refrigeration appliance according to claim 9.
11. The refrigeration apparatus as claimed in claim 10, wherein the outlet of the compressor is connected to the inlet of the electric valve, the inlet of the refrigeration evaporator is connected to the refrigeration outlet of the electric valve, and the inlet of the freezing evaporator is connected to the outlet of the refrigeration evaporator and the freezing outlet of the electric valve, respectively.
12. A machine-readable storage medium, characterized in that it has stored thereon instructions for enabling a processor, when executed by said processor, to carry out a control method for a refrigeration appliance according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162613.0A CN111351306A (en) | 2020-03-10 | 2020-03-10 | Refrigeration equipment, control method and control device thereof and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162613.0A CN111351306A (en) | 2020-03-10 | 2020-03-10 | Refrigeration equipment, control method and control device thereof and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111351306A true CN111351306A (en) | 2020-06-30 |
Family
ID=71192598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010162613.0A Pending CN111351306A (en) | 2020-03-10 | 2020-03-10 | Refrigeration equipment, control method and control device thereof and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111351306A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146329A (en) * | 2020-09-04 | 2020-12-29 | 海信容声(广东)冷柜有限公司 | Refrigeration equipment and control method thereof |
| CN113154725A (en) * | 2021-05-27 | 2021-07-23 | 江苏拓米洛环境试验设备有限公司 | Control method of multi-chamber electronic expansion valve of refrigeration system and refrigeration system |
| CN113654298A (en) * | 2021-08-23 | 2021-11-16 | 珠海格力电器股份有限公司 | Refrigeration equipment control method, storage medium, electronic equipment and refrigeration equipment |
| CN113834280A (en) * | 2021-09-24 | 2021-12-24 | 珠海格力电器股份有限公司 | Control method and device of freezing and refrigerating system and refrigerator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233735A (en) * | 1998-04-28 | 1999-11-03 | 东芝株式会社 | Method for controlling refrigeratory |
| CN1382949A (en) * | 2001-03-21 | 2002-12-04 | 广东科龙电器股份有限公司 | Refrigerator and its control method |
| US20050235667A1 (en) * | 2004-03-23 | 2005-10-27 | Samsung Electronics Co., Ltd. | Refrigerator and control method thereof |
| CN101627269A (en) * | 2007-03-13 | 2010-01-13 | 星崎电机株式会社 | Refrigeration storage and method of operation thereof |
| CN106766533A (en) * | 2016-12-28 | 2017-05-31 | 青岛海尔股份有限公司 | For the refrigeration control method and refrigerator of refrigerator |
-
2020
- 2020-03-10 CN CN202010162613.0A patent/CN111351306A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233735A (en) * | 1998-04-28 | 1999-11-03 | 东芝株式会社 | Method for controlling refrigeratory |
| CN1382949A (en) * | 2001-03-21 | 2002-12-04 | 广东科龙电器股份有限公司 | Refrigerator and its control method |
| US20050235667A1 (en) * | 2004-03-23 | 2005-10-27 | Samsung Electronics Co., Ltd. | Refrigerator and control method thereof |
| CN101627269A (en) * | 2007-03-13 | 2010-01-13 | 星崎电机株式会社 | Refrigeration storage and method of operation thereof |
| CN106766533A (en) * | 2016-12-28 | 2017-05-31 | 青岛海尔股份有限公司 | For the refrigeration control method and refrigerator of refrigerator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146329A (en) * | 2020-09-04 | 2020-12-29 | 海信容声(广东)冷柜有限公司 | Refrigeration equipment and control method thereof |
| CN113154725A (en) * | 2021-05-27 | 2021-07-23 | 江苏拓米洛环境试验设备有限公司 | Control method of multi-chamber electronic expansion valve of refrigeration system and refrigeration system |
| CN113654298A (en) * | 2021-08-23 | 2021-11-16 | 珠海格力电器股份有限公司 | Refrigeration equipment control method, storage medium, electronic equipment and refrigeration equipment |
| CN113654298B (en) * | 2021-08-23 | 2022-05-20 | 珠海格力电器股份有限公司 | Refrigeration equipment control method, storage medium, electronic equipment and refrigeration equipment |
| CN113834280A (en) * | 2021-09-24 | 2021-12-24 | 珠海格力电器股份有限公司 | Control method and device of freezing and refrigerating system and refrigerator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111351306A (en) | Refrigeration equipment, control method and control device thereof and storage medium | |
| JP3464949B2 (en) | refrigerator | |
| CN106482441B (en) | Refrigeration equipment working method and refrigeration equipment | |
| KR0160439B1 (en) | Refrigerator and control method of having high efficient cooling cycle | |
| US9970698B2 (en) | Multiple evaporator control using PWM valve/compressor | |
| JP3126363B2 (en) | Apparatus for controlling dual evaporator dual fan refrigerator with independent temperature controller | |
| EP2390588A2 (en) | Hot water supply device associated with heat pump | |
| CA2609089A1 (en) | Distributed refrigeration system for kitchens | |
| CN109855351A (en) | Refrigerator and its control method | |
| WO2020175829A1 (en) | Method for controlling refrigerator | |
| US10473388B2 (en) | Refrigerator and method for controlling constant temperature thereof | |
| JP2007107815A (en) | Cooling storage and operation method thereof | |
| CN111059824A (en) | Air-cooled refrigerator | |
| CN107014133B (en) | Refrigerator and control method thereof | |
| CN214581999U (en) | Freezing and refrigerating device | |
| CN111059841B (en) | Control method for refrigerating and freezing device and refrigerating and freezing device | |
| CN111059842B (en) | Control method for refrigerating and freezing device and refrigerating and freezing device | |
| JP2005098605A (en) | Refrigerator | |
| CN111059835B (en) | Control method for refrigerating and freezing device and refrigerating and freezing device | |
| CN111059837B (en) | Control method for refrigerating and freezing device and refrigerating and freezing device | |
| JP2002286347A (en) | Cooling storage box | |
| CN215447022U (en) | A kind of refrigerator | |
| CN211625831U (en) | Refrigerating and freezing device | |
| US11879681B2 (en) | Method for controlling refrigerator | |
| KR20070072223A (en) | Refrigerator and controlling method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200630 |