CN115247929A - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
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- CN115247929A CN115247929A CN202110451786.9A CN202110451786A CN115247929A CN 115247929 A CN115247929 A CN 115247929A CN 202110451786 A CN202110451786 A CN 202110451786A CN 115247929 A CN115247929 A CN 115247929A
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- freezing
- refrigerating
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- evaporator
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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
- 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
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- 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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention relates to a refrigerator and a control method thereof, the refrigerator includes a cabinet defining a refrigerating chamber, a freezing chamber and an evaporator chamber therein, an evaporator provided in the evaporator chamber, a compressor connected to the evaporator, a refrigerating fan for causing an air flow in the evaporator chamber to flow toward the refrigerating chamber, and a freezing fan for causing an air flow in the evaporator chamber to flow toward the freezing chamber. The control method of the invention comprises the following steps: when the refrigerator is in a freezing-to-refrigerating mode for converting a freezing chamber into a refrigerating chamber, acquiring the temperature in the freezing chamber; and when the temperature in the freezing chamber reaches the freezing starting point temperature in the freezing-to-refrigerating mode, starting the compressor and the refrigerating fan, delaying for a first preset time, and then starting the freezing fan, so as to convey cooling air flow to the refrigerating chamber firstly, and conveying cooling air flow to the freezing chamber after delaying for the first preset time. Therefore, the flow of cooling air sent to the refrigerating chamber can be increased, and the refrigerating effect of the freezing chamber and the refrigerating chamber can be better.
Description
Technical Field
The invention relates to the field of refrigerating devices, in particular to a refrigerator and a control method thereof.
Background
At present, the common refrigerators in the market generally comprise at least two refrigerating compartments including a refrigerating compartment and a freezing compartment, wherein the storage temperature of the refrigerating compartment is approximately 0-8 ℃, and the storage temperature of the freezing compartment is approximately-24-14 ℃. However, the freezer compartment is less demanding for some users to use, and therefore, leaving the freezer compartment empty for extended periods of time results in wasted energy and storage space.
For this reason, in the prior art, a refrigerator using a freezing chamber as a refrigerating chamber is developed, and after the freezing chamber is used as the refrigerating chamber, the start and stop of the compressor are controlled by the temperature in the freezing chamber. However, the refrigerating effect of the refrigerating chamber is often sacrificed, and the temperature of the refrigerating chamber cannot be kept at 0-8 ℃, so that the food material in the refrigerating chamber is poor in storage effect and not fresh enough.
Disclosure of Invention
An object of the first aspect of the present invention is to overcome at least one of the drawbacks of the prior art and to provide a control method of a refrigerator which ensures a better storage effect of both a freezing chamber and a refrigerating chamber after freezing-to-refrigerating.
It is a further object of the first aspect of the invention to avoid affecting the refrigeration of the fresh food compartment after the freezer compartment has first reached the shutdown temperature.
The second aspect of the invention aims to provide a refrigerator which ensures that a freezing chamber and a refrigerating chamber have better storage effect after freezing and refrigerating are changed into cold storage.
According to a first aspect of the present invention, there is provided a control method of a refrigerator including a cabinet defining therein a refrigerating chamber, a freezing chamber and an evaporator chamber, an evaporator provided in the evaporator chamber, a compressor connected to the evaporator, a refrigerating fan for causing an air flow in the evaporator chamber to flow toward the refrigerating chamber, a freezing fan for causing an air flow in the evaporator chamber to flow toward the freezing chamber, the control method including:
when the refrigerator is in a freezing-to-refrigerating mode for converting the freezing chamber into a refrigerating chamber, acquiring the temperature in the freezing chamber; and
and when the temperature in the freezing chamber reaches the freezing starting point temperature in the freezing-to-refrigerating mode, starting the compressor and the refrigerating fan, delaying for a first preset time, and then starting the freezing fan, so as to convey cooling air flow to the refrigerating chamber firstly, and delaying for the first preset time, and then convey cooling air flow to the freezing chamber.
Optionally, the evaporator chamber is located at a rear side of the freezing chamber, and the refrigerating fan and the freezing fan are both located in the evaporator chamber, and the control method further includes:
acquiring the temperatures in the refrigerating chamber and the freezing chamber after the compressor is started;
judging whether the temperature in the refrigerating chamber reaches a refrigerating shutdown point temperature or not and whether the temperature in the freezing chamber reaches a freezing shutdown point temperature in the freezing-to-refrigerating mode or not;
if the temperature in the refrigerating chamber reaches the refrigerating shutdown point temperature, stopping the refrigerating fan, keeping the compressor running continuously until the temperature in the freezing chamber reaches the freezing shutdown point temperature in the freezing-to-refrigerating mode, and stopping the compressor and the freezing fan;
if the temperature in the freezing chamber reaches the freezing shutdown point temperature in the freezing-to-refrigerating mode, the freezing fan, the compressor and the refrigerating fan are kept running continuously until the temperature in the refrigerating chamber reaches the refrigerating shutdown point temperature, and then the freezing fan, the compressor and the refrigerating fan are stopped.
Optionally, after the temperature in the freezer compartment reaches the temperature of the freezing shutdown point in the freezing-to-refrigerating mode, the rotation speed of the freezing fan is less than or equal to the initial rotation speed of the freezing fan when the temperature in the freezer compartment does not reach the temperature of the freezing shutdown point in the freezing-to-refrigerating mode.
Optionally, when the temperature in the freezing chamber reaches the temperature of the freezing shutdown point in the freezing-to-refrigerating mode, the rotation speed of the freezing fan is 0.1 to 1 time of the initial rotation speed.
Optionally, the first preset time period is any time period value between 0.5 and 20 min.
According to a second aspect of the present invention, there is also provided a refrigerator comprising a cabinet defining therein a refrigerating compartment, a freezing compartment and an evaporator compartment, an evaporator provided in the evaporator compartment, a compressor connected to the evaporator, a refrigerating fan for causing an air flow in the evaporator compartment toward the refrigerating compartment, a freezing fan for causing an air flow in the evaporator compartment toward the freezing compartment, and a control device connected to the compressor, the refrigerating fan and the freezing fan, wherein the refrigerator comprises a first casing having a first end and a second end, and a second end opposite to the first end, and a third end, and a fourth end, the first end and the second end are connected to the first end and the second end, respectively, of the first casing and the second casing, respectively
The control apparatus comprises a processor and a memory, the memory having stored therein a machine executable program, and the machine executable program when executed by the processor is for implementing the control method of any one of the above aspects.
Optionally, the freezer is in the top of walk-in, the evaporator room is in the rear side of freezer, the cold-stored fan with the freezer fan sets up side by side along transversely in the evaporator room, and all be in the top of evaporimeter.
Optionally, a refrigerating air supply duct for supplying cooling air to the refrigerating chamber and a refrigerating return air duct for supplying return air in the refrigerating chamber to the evaporator chamber are further defined in the box body, the refrigerating air supply duct is communicated with the upper part of the evaporator chamber, and the refrigerating return air duct is communicated with the lower part of the evaporator chamber;
the refrigerating air supply duct includes an upper section adjacently located at a rear side of the freezing chamber and extending from top to bottom, and a lower section extending from the upper section downward to a rear of the refrigerating chamber.
Optionally, the freezing chamber and the evaporator chamber are separated by an air duct cover plate, and a freezing air supply outlet for conveying cooling air to the freezing chamber and a freezing air return outlet for returning return air in the freezing chamber to the evaporator chamber are respectively formed in the top and the bottom of the air duct cover plate.
Optionally, the refrigerating fan and the freezing fan are both axial flow fans blowing forward.
In this application, the refrigerator is including being used for respectively being the cold-stored fan and the freezing fan of walk-in and freezer air supply, change under the cold-stored mode at freezing, when the freezing start point temperature under this mode is reached to the temperature in the freezer, start compressor and cold-stored fan earlier, the first preset time of time delay is after starting freezing fan again, in order to carry the cooling air current to the walk-in earlier and refrigerate, after a period of time again to the freezer, that is to say, refrigerate the walk-in earlier a period of time through freezing fan's control, refrigerate walk-in and freezer simultaneously again, in order to increase the cooling airflow who is sent to the walk-in, make freezer and walk-in can both reach respective shutdown point temperature as far as possible, it can both have better refrigeration effect to have guaranteed walk-in and freezer.
Further, for a refrigerator with dual fans, when either of the cold room and the freezer room reaches the respective shutdown temperature, the fan corresponding to the compartment may be stopped to stop cooling the compartment and ensure that the other compartment continues to cool. However, the applicant has recognized that when the evaporator chamber is located at the rear side of the freezing chamber and the refrigerating fan and the freezing fan are both located in the evaporator, when the freezing chamber reaches the freezing-off point temperature in the mode, so that the freezing fan is turned off, part of the airflow in the freezing chamber is driven by the refrigerating fan to flow in a reverse direction from the freezing fan to the airflow inlet of the refrigerating fan, so that part of the airflow sent to the refrigerating chamber is the airflow of the freezing chamber which does not exchange heat with the evaporator, and the refrigerating efficiency of the refrigerating chamber is reduced. For this reason, this application is controlled freezing fan after the freezer reaches freezing shutdown point temperature under this mode and continues the operation, can avoid the airflow reverse flow in the freezer to the airflow inlet of cold-stored fan to guaranteed that the airflow that gets into in the freezer is the cooling air flow through the evaporimeter heat transfer, avoided producing the influence to the refrigeration of walk-in.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a refrigerator according to one embodiment of the present invention;
FIG. 2 is a schematic side view of a refrigerator according to one embodiment of the present invention;
fig. 3 is a schematic flowchart of a refrigerator control method according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a refrigerator control method according to another embodiment of the present invention;
fig. 5 is a schematic structural block diagram of a refrigerator according to one embodiment of the present invention.
Detailed Description
The present invention first provides a control method of a refrigerator, fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention, fig. 2 is a schematic side view of a refrigerator according to an embodiment of the present invention, and a dotted arrow in fig. 2 indicates an airflow direction when the refrigerator performs cooling. Referring to fig. 1 and 2, the refrigerator 1 of the present invention includes a cabinet 10 defining therein a refrigerating compartment 110, a freezing compartment 120 and an evaporator compartment 130, an evaporator 20 disposed in the evaporator compartment 130, a compressor 30 connected to the evaporator 20, a refrigerating fan 41 for causing an air flow in the evaporator compartment 130 toward the refrigerating compartment 110, and a freezing fan 42 for causing an air flow in the evaporator compartment 130 toward the freezing compartment 120. That is, the refrigerator 1 of the present invention employs the refrigerating fan 41 and the freezing fan 42 to blow air toward the refrigerating chamber 110 and the freezing chamber 120, respectively. Further, the refrigerator 1 may further include a refrigerating door 171 for opening and closing the refrigerating chamber 110 and a freezing door 172 for opening and closing the freezing chamber 120, respectively.
The refrigerating chamber 110 has a refrigerating mode in which a storage temperature is approximately 0 to 8 ℃. The freezing chamber 120 has two modes of a freezing mode and a freeze-to-cool mode. In the freezing mode, the storage temperature in the freezing chamber 120 is approximately-24 to-14 ℃. In the freeze-to-cold mode, the freezing chamber 120 is changed to a refrigerating chamber, and the storage temperature therein may be the same as that of the refrigerating chamber 110 or slightly lower than that of the refrigerating chamber 110.
The applicant of the present application recognized that the space of the freezing compartment 120 is generally smaller than that of the refrigerating compartment 110, and the set temperature range of the freezing compartment 120 is similar to that of the refrigerating compartment 110 when the freezing compartment 120 is converted to the refrigerating compartment for use, and thus, the freezing compartment 120 requires less cooling than the refrigerating compartment 110. When the start-stop of the compressor is controlled by the temperature in the freezing chamber 120, the temperature of the freezing shutdown point after the freezing is changed into the cold storage is easily reached to prompt the shutdown of the compressor 30. At this time, the refrigerating chamber may not reach the refrigerating shutdown point temperature yet, which is the root cause of poor refrigerating effect of the refrigerating chamber caused by controlling the start and stop of the compressor with the temperature of the freezing chamber after the existing freezing is changed into the refrigerating.
For this reason, the inventors have devised a control method of a refrigerator. The refrigerator control method of the present invention comprises:
acquiring a temperature inside the freezing chamber 120 while the refrigerator 1 is in a freezing-to-refrigerating mode in which the freezing chamber 120 is converted into a refrigerating chamber; and
when the temperature in the freezing chamber 120 reaches the freezing start point temperature in the freezing-to-refrigerating mode, the compressor 30 and the refrigerating fan 41 are started, and the freezing fan 42 is started after a delay of a first preset time period, so as to deliver the cooling air flow to the refrigerating chamber 110 first and deliver the cooling air flow to the freezing chamber 120 after a delay of the first preset time period.
That is, according to the present invention, when the temperature in the freezing chamber 120 reaches the freezing start-up point temperature in the freezing-to-refrigerating mode, the refrigeration of the refrigerating chamber 110 is performed for a period of time, and then the refrigerating chamber 110 and the freezing chamber 120 are simultaneously refrigerated by extending the start of the freezing fan 42, so that the flow rate of the cooling air supplied to the refrigerating chamber 110 is increased, the freezing chamber 120 and the refrigerating chamber 110 can reach respective shutdown point temperatures as much as possible, and the refrigerating chamber 110 and the freezing chamber 120 can have a good refrigeration effect.
Fig. 3 is a schematic flowchart of a refrigerator control method according to an embodiment of the present invention. Referring to fig. 3, in one embodiment, the control method of the present invention may include:
step S202, controlling the operation of the compressor 30, the refrigerating fan 42 and the freezing fan 43 according to the conventional setting;
step S203, acquiring the temperature in the freezing chamber 120;
step S204, judging whether the temperature in the freezing chamber 120 reaches the freezing starting point temperature in the freezing-to-refrigerating mode; if yes, go to step S205, otherwise, go back to step S203;
step S205, starting the compressor 30 and the refrigeration fan 41, and starting timing;
step S206, judging whether the timing time reaches a first preset time length; if yes, go to step S207, otherwise, continue timing;
in step S207, the freezing fan 42 is started.
If the refrigerator 1 is not in the freeze-to-cold mode, the refrigerator 1 is controlled to operate according to the conventional setting, and the conventional control logic of the refrigerator 1 is a technology easily obtained by those skilled in the art, so that the detailed description is omitted here.
In some embodiments, the amount of cooling delivered by the refrigeration fan 41 and the freezing fan 42 to the refrigeration compartment 110 and the freezing compartment 120, respectively, per unit time is comparable. At this time, the first preset period of time may be set such that the sum of the ratio between the amount of cooling delivered to the refrigerating chamber 110 by the refrigerating fan 41 for the first preset period of time and the total amount of cooling required for the refrigerating chamber 110 to reach the refrigerating shutdown point temperature and the ratio between the volume of the freezing chamber 120 and the volume of the refrigerating chamber 110 is substantially equal to 1. Therefore, when the temperature in the freezing chamber 120 reaches the freezing shutdown point temperature in the mode, the refrigerating chamber 110 also just reaches the refrigerating shutdown point temperature, so that the refrigerating effect in the freezing chamber 120 and the refrigerating chamber 110 can be ensured, and the cold energy waste caused by excessive refrigeration can be avoided.
Therefore, the length of the first preset time period may be adjusted according to the volume sizes of the refrigerating compartment 110 and the freezing compartment 120. Specifically, the first preset time period may be any time period value between 0.5 and 20 min. For example, the first preset time period may be 0.5min, 2min, 4min, 6min, 8min, 10min, 12min, 14min, 16min, 18min, 20min, or the like.
For the refrigerator 1 with two fans, when either of the refrigerating chamber 110 and the freezing chamber 120 reaches the respective shutdown temperature, the fan corresponding to the compartment may be stopped to stop cooling the compartment and ensure that the other compartment continues to cool. However, for some special-structure refrigerators, the control strategy described above has the problem of low refrigerating efficiency of the refrigerating chamber.
Specifically, in some embodiments, the evaporator chamber 130 of the refrigerator 1 may be at the rear side of the freezing chamber 120, with both the refrigerating fan 41 and the freezing fan 42 in the evaporator chamber 130. With the refrigerator configuration thus configured, applicants have recognized that the freezer fan 42 no longer provides any driving effect on the airflow, but rather acts as an opening, if the freezer compartment 120 reaches the freezer off point temperature in this mode such that the freezer fan 42 is turned off. At this time, the refrigerating fan 41 continues to operate to continue to supply cooling energy to the refrigerating compartment 110. In this process, a negative pressure is generated in a rear area of the refrigerating fan 41 (an air flow inlet of the refrigerating fan 41 is located at a rear side of the refrigerating fan 41), and not only the cooling air flow having undergone heat exchange in the evaporator chamber 130 flows to the air flow inlet of the refrigerating fan 41, but also the return air having not undergone heat exchange in the freezing chamber 120 flows to the air flow inlet of the refrigerating fan 41 through the freezing fan 42, so that the air flow supplied to the refrigerating chamber 110 is a mixed air flow of the cooling air flow and the freezing return air, and the temperature is slightly high, thereby affecting the refrigerating efficiency of the refrigerating chamber 110.
To this end, in some embodiments, the control method of the present invention further comprises:
acquiring temperatures in the refrigerating compartment 110 and the freezing compartment 120 after the compressor 30 is started;
judging whether the temperature in the refrigerating chamber 110 reaches a refrigerating shutdown point temperature or not and whether the temperature in the freezing chamber 120 reaches a freezing shutdown point temperature in a freezing-to-refrigerating mode or not;
if the temperature in the refrigerating chamber 110 reaches the refrigerating shutdown point temperature first, the refrigerating fan 41 is stopped, the compressor 30 is kept running continuously until the temperature in the freezing chamber 120 reaches the freezing shutdown point temperature in the freezing-to-refrigerating mode, and then the compressor 30 and the freezing fan 42 are stopped;
if the temperature in the freezing chamber 120 reaches the freezing-off point temperature in the freezing-to-refrigerating mode, the freezing fan 42, the compressor 30 and the refrigerating fan 41 are kept running until the temperature in the refrigerating chamber 110 reaches the refrigerating-off point temperature, and then the freezing fan 42, the compressor 30 and the refrigerating fan 41 are stopped.
That is to say, this application controls freezing fan 42 to continue to operate after freezing room 120 reaches the freezing shutdown point temperature under the freezing-to-refrigerating mode for freezing fan 42 continues to produce the drive power that drives the air current and flow towards in the freezing room 120, can avoid the air current in the freezing room 120 reverse flow to the air current entry of cold storage fan 41, thereby has ensured that the air current that gets into in refrigerating room 110 is the cooling air current through the heat transfer of evaporimeter 20, has avoided producing the influence to the refrigeration of refrigerating room 110.
Fig. 4 is a schematic flowchart of a refrigerator control method according to another embodiment of the present invention. Referring to fig. 4, in another embodiment, after step S207, the control method of the present invention may include:
step S208, acquiring temperatures in the refrigerating compartment 110 and the freezing compartment 120;
step S209, sequentially judging whether the refrigerating chamber 110 and the freezing chamber 120 reach respective shutdown point temperatures; if the first condition is satisfied (the refrigerating compartment 110 reaches its shutdown temperature, and the freezing compartment 120 does not reach its shutdown temperature), go to step S210; if the second condition is satisfied (the refrigerating compartment 110 does not reach the shutdown temperature thereof, and the freezing compartment 120 reaches the shutdown temperature thereof), go to step S211;
step S210, stopping the refrigeration fan 41, and stopping the compressor 30 and the freezing fan 42 after the temperature in the freezing chamber 120 reaches the freezing shutdown point temperature in the freezing-to-refrigeration mode;
in step S211, the operation of the freezing fan 42, the compressor 30 and the refrigerating fan 41 is kept until the temperature in the refrigerating chamber 110 reaches the refrigerating shutdown temperature, and then the freezing fan 42, the compressor 30 and the refrigerating fan 41 are stopped.
In some embodiments, after the temperature in the freezing compartment 120 reaches the freezing-off point temperature in the freeze-to-cool mode, the rotation speed of the freezing fan 42 is less than or equal to the initial rotation speed of the freezing fan 42 when the temperature in the freezing compartment 120 does not reach the freezing-off point temperature in the freeze-to-cool mode. That is, after the temperature in the freezing chamber 120 reaches the freezing-off point temperature in the freeze-to-cool mode, the rotation speed of the freezing fan 42 may decrease although the operation is continued. This is because, after the temperature in the freezing compartment 120 reaches the freezing-shutdown temperature in the freeze-to-cold mode, the freezing fan 42 continues to operate to prevent the cooling air flow from being supplied to the freezing compartment 120, but to ensure that the air flow from the evaporator compartment 130 to the freezing compartment 120 flows toward the freezing compartment 120, and to prevent the air flow from the freezing compartment 120 to the evaporator compartment 130 flowing backward through the freezing fan 42, so that the reduction of the rotational speed of the freezing fan 42 not only ensures that the air flow does not flow backward, but also reduces the energy consumption, ensures that more cooling air flow flows toward the refrigerating compartment 110, and promotes the refrigerating compartment 110 to reach the shutdown temperature thereof as soon as possible.
Further, when the temperature in the freezing chamber 120 reaches the freezing-off point temperature in the freezing-to-refrigerating mode, the rotation speed of the freezing fan 42 is 0.1 to 1 time of the initial rotation speed. For example, when the temperature in the freezing chamber 120 reaches the temperature at the freezing-off point in the freeze-to-cold storage mode, the rotational speed of the freezing fan 42 is 0.1 times, 0.2 times, 0.3 times, 0.4 times, 0.5 times, 0.6 times, 0.7 times, 0.8 times, 0.9 times, or 1 time the initial rotational speed.
In some embodiments, a refrigerating air duct 140 for supplying a cooling air flow to the refrigerating chamber 110 may be further defined in the casing 10, and a refrigerating damper may be provided in the refrigerating air duct 140. In these embodiments, step S205 may further include an operation of opening the refrigerating damper to open the refrigerating air duct 140, step S210 may further include an operation of closing the refrigerating damper to block the refrigerating air duct 140, and step S211 may further include a step of keeping the refrigerating damper open until the temperature in the refrigerating chamber 110 reaches the refrigerating shutdown point temperature and then closing the refrigerating damper.
Specifically, the opening degree of the refrigeration air door can be reasonably selected between 30% and 100% according to actual requirements.
The present invention also provides a refrigerator 1 including a cabinet 10 defining therein a refrigerating chamber 110, a freezing chamber 120 and an evaporator chamber 130, an evaporator 20 disposed in the evaporator chamber 130, a compressor 30 connected to the evaporator 20, a refrigerating fan 41 for causing an air flow in the evaporator chamber 130 toward the refrigerating chamber 110, a freezing fan 42 for causing an air flow in the evaporator chamber 130 toward the freezing chamber 120, and a control device 50 connected to the compressor 30, the refrigerating fan 41 and the freezing fan 42.
Fig. 5 is a schematic structural block diagram of a refrigerator according to one embodiment of the present invention. Referring to fig. 5, the control device 50 may include a processor 51 and a memory 52, the memory 52 storing a machine-executable program 53, and the machine-executable program 53 being executed by the processor 51 for implementing the control method according to any of the above embodiments.
Specifically, the processor 51 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The processor 51 transceives data through the communication interface. The memory 52 is used for storing programs executed by the processor 51. The memory 52 is any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, or a combination of memories. The machine-executable program 53 described above may be downloaded from a computer-readable storage medium to a corresponding computing/processing device or via a network (e.g., the internet, a local area network, a wide area network, and/or a wireless network) to a computer or external storage device.
Specifically, the control device 50 may be disposed at a rear side of the refrigerating compartment 110. In some alternative embodiments, the control device 50 may also be located at the top of the tank 10 or at the compressor compartment where the compressor 30 is located.
In some embodiments, the freezing compartment 120 is above the refrigerating compartment 110, the evaporator compartment 130 is at the rear side of the freezing compartment 120, and the refrigerating fan 41 and the freezing fan 42 are laterally disposed side by side in the evaporator compartment 130, both above the evaporator 20. That is, the control method of the present application is more applicable to a refrigerator in which the freezing chamber 120 is on the top, the refrigerating chamber 110 is on the bottom, and the evaporator chamber 130 is behind the freezing chamber 120.
In some embodiments, a refrigerating air supply duct 140 for supplying a cooling air flow to the refrigerating chamber 110 and a refrigerating return air duct 150 for supplying return air in the refrigerating chamber 110 to the evaporator chamber 130 are further defined in the cabinet 10, the refrigerating air supply duct 140 communicates with an upper portion of the evaporator chamber 130, and the refrigerating return air duct 150 communicates with a lower portion of the evaporator chamber 130, so that the return air in the refrigerating chamber 110 flows to a bottom portion of the evaporator chamber 130 and flows upward through the evaporator 20 to exchange heat with the evaporator 20 and then is supplied to the refrigerating chamber 110 through the refrigerating air supply duct 140.
Further, the refrigerating air blowing duct 140 includes an upper section 141 adjacently located at a rear side of the freezing chamber 120 and extending downward from above, and a lower section 142 extending downward from the upper section 141 to a rear of the refrigerating chamber 110. The refrigerating fan 41 may communicate with an upper end of the upper section 141 of the refrigerating air blowing duct 140. The lower section of the refrigerating air duct 140 is in fluid communication with the refrigerating compartment 110 through a plurality of air outlets.
In some embodiments, the freezing chamber 120 and the evaporator chamber 130 are separated by an air duct cover 160, and the top and bottom of the air duct cover 160 are respectively opened with a freezing air supply outlet 121 for supplying cooling air to the freezing chamber 120 and a freezing air return outlet 122 for returning return air in the freezing chamber 120 to the evaporator chamber 130. Accordingly, fluid circulation between the freezing chamber 120 and the evaporator chamber 130 can be achieved without providing an additional freezing air supply duct and a freezing return duct, and the structure of the refrigerator 1 is simplified.
In some embodiments, the refrigerating fan 41 and the freezing fan 42 are both axial flow fans blowing forward. Specifically, the freezing fan 42 may be disposed opposite to the freezing air supply outlet 121 on the duct cover 160 to blow air toward the freezing air supply outlet 121, so as to reduce resistance and reversing times of the air flow flowing to the freezing chamber 120, increase the air flow rate, and further improve the cooling efficiency of the freezing chamber 120. The refrigerating fan 41 may be positioned at a rear side of the refrigerating air blowing duct 140 to blow air toward the refrigerating air blowing duct 140 so that air flow is directed toward the refrigerating compartment 110 by the refrigerating air blowing duct 140. The air flow heat-exchanged by the evaporator 20 flows upward to the air flow inlets of the refrigerating fan 41 and the freezing fan 42 by the driving of the refrigerating fan 41 and the freezing fan 42, and is blown toward the refrigerating chamber 110 and the freezing chamber 120, respectively.
In some alternative embodiments, the refrigeration fan 41 and the freezing fan 42 are both centrifugal fans.
It will be understood by those skilled in the art that the refrigerator 1 of the present invention is a refrigerator in a broad sense, and includes not only a conventional refrigerator in a narrow sense but also a refrigerator, a refrigerator car, a freezer or other refrigerating and freezing apparatus having both a refrigerating chamber and a freezing chamber.
It should be further understood by those skilled in the art that the terms "upper", "lower", "front", "rear", "top", "bottom", etc. used in the embodiments of the present invention are used as terms for indicating the orientation or positional relationship with respect to the actual use state of the refrigerator 1, and these terms are only used for convenience of description and understanding of the technical solution of the present invention, and do not indicate or imply that the device referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A control method of a refrigerator including a cabinet defining therein a refrigerating chamber, a freezing chamber and an evaporator chamber, an evaporator provided in the evaporator chamber, a compressor connected to the evaporator, a refrigerating fan for causing an air flow in the evaporator chamber to flow toward the refrigerating chamber, a freezing fan for causing an air flow in the evaporator chamber to flow toward the freezing chamber, the control method comprising:
when the refrigerator is in a freezing-to-refrigerating mode for converting the freezing chamber into a refrigerating chamber, acquiring the temperature in the freezing chamber; and
and when the temperature in the freezing chamber reaches the freezing starting point temperature in the freezing-to-refrigerating mode, starting the compressor and the refrigerating fan, delaying for a first preset time, and then starting the freezing fan, so as to convey cooling air flow to the refrigerating chamber firstly, and delaying for the first preset time, and then convey cooling air flow to the freezing chamber.
2. The control method according to claim 1, wherein the evaporator chamber is at a rear side of the freezing chamber, and the refrigerating fan and the freezing fan are both in the evaporator chamber, the control method further comprising:
acquiring the temperatures in the refrigerating chamber and the freezing chamber after the compressor is started;
judging whether the temperature in the refrigerating chamber reaches a refrigerating shutdown point temperature or not and whether the temperature in the freezing chamber reaches a freezing shutdown point temperature in the freezing-to-refrigerating mode or not;
if the temperature in the refrigerating chamber reaches the refrigerating shutdown point temperature, stopping the refrigerating fan, keeping the compressor running continuously until the temperature in the freezing chamber reaches the freezing shutdown point temperature in the freezing-to-refrigerating mode, and stopping the compressor and the freezing fan;
if the temperature in the freezing chamber reaches the freezing shutdown point temperature in the freezing-to-refrigerating mode, the freezing fan, the compressor and the refrigerating fan are kept running continuously until the temperature in the refrigerating chamber reaches the refrigerating shutdown point temperature, and then the freezing fan, the compressor and the refrigerating fan are stopped.
3. The control method according to claim 2, wherein
When the temperature in the freezing chamber reaches after freezing shutdown point temperature under the freezing cold storage mode, the rotational speed of freezing fan is less than or equal to the freezing fan is in the temperature in the freezing chamber does not reach the initial rotational speed when freezing shutdown point temperature under the freezing cold storage mode is changeed in the freezing.
4. The control method according to claim 3, wherein
And when the temperature in the freezing chamber reaches the freezing shutdown point temperature in the freezing-to-refrigerating mode, the rotating speed of the freezing fan is 0.1-1 time of the initial rotating speed.
5. The control method according to claim 1,
the first preset duration is any duration value between 0.5 and 20 min.
6. A refrigerator comprising a cabinet defining therein a refrigerating compartment, a freezing compartment and an evaporator compartment, an evaporator disposed in the evaporator compartment, a compressor connected to the evaporator, a refrigerating fan for causing an air flow in the evaporator compartment toward the refrigerating compartment, a freezing fan for causing an air flow in the evaporator compartment toward the freezing compartment, and a control device connected to the compressor, the refrigerating fan and the freezing fan, wherein the refrigerating fan and the freezing fan are disposed in a direction substantially perpendicular to the refrigerating compartment, and the control device controls the refrigerating fan and the freezing fan to operate in a manner such that the air flow in the evaporator compartment flows toward the freezing compartment and the freezing compartment in a direction substantially perpendicular to the refrigerating compartment
The control device comprises a processor and a memory, in which a machine-executable program is stored, and which, when executed by the processor, is adapted to implement the control method according to any one of claims 1-5.
7. The refrigerator according to claim 6,
the freezer is in the top of walk-in, the evaporimeter room is in the rear side of freezer, the cold-stored fan with freezing fan sets up side by side along transversely in the evaporimeter is indoor, and all is in the top of evaporimeter.
8. The refrigerator according to claim 7,
a refrigerating air supply channel for conveying cooling air flow to the refrigerating chamber and a refrigerating return air channel for conveying return air in the refrigerating chamber to the evaporator chamber are further defined in the box body, the refrigerating air supply channel is communicated with the upper part of the evaporator chamber, and the refrigerating return air channel is communicated with the lower part of the evaporator chamber;
the refrigerating air supply duct includes an upper section adjacently located at a rear side of the freezing chamber and extending from top to bottom, and a lower section extending from the upper section downward to a rear of the refrigerating chamber.
9. The refrigerator according to claim 7,
the freezer with the evaporimeter room separates through the wind channel apron, the top and the bottom of wind channel apron are seted up respectively and are used for to the freezer carries the freezing supply-air outlet of cooling air current and is used for supplying the return air in the freezer returns the freezing return-air inlet of evaporimeter room.
10. The refrigerator according to claim 7,
the refrigerating fan and the freezing fan are both forward blowing axial fans.
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| CN202110451786.9A CN115247929B (en) | 2021-04-26 | 2021-04-26 | Refrigerator and control method thereof |
| PCT/CN2022/072545 WO2022227721A1 (en) | 2021-04-26 | 2022-01-18 | Refrigerator and control method therefor |
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| CN202110451786.9A CN115247929B (en) | 2021-04-26 | 2021-04-26 | Refrigerator and control method thereof |
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Also Published As
| Publication number | Publication date |
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| CN115247929B (en) | 2023-07-14 |
| WO2022227721A1 (en) | 2022-11-03 |
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