CN113218135A - Air-cooled refrigerator and control method thereof - Google Patents
Air-cooled refrigerator and control method thereof Download PDFInfo
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- CN113218135A CN113218135A CN202010072307.8A CN202010072307A CN113218135A CN 113218135 A CN113218135 A CN 113218135A CN 202010072307 A CN202010072307 A CN 202010072307A CN 113218135 A CN113218135 A CN 113218135A
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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
- F25D17/062—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 in household refrigerators
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
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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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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides an air-cooled refrigerator and a control method thereof, wherein the air-cooled refrigerator comprises a refrigerator body, an evaporator chamber, an air supply duct and a moisturizing air door, wherein the interior of the refrigerator body is limited with a moisturizing chamber, an evaporator is arranged in the evaporator chamber, the air supply duct is positioned at the downstream of the evaporator chamber, is communicated with the evaporator chamber and is provided with a moisturizing air supply opening communicated with the moisturizing chamber, and the moisturizing air door is arranged in the air supply duct and is configured to be opened when a compressor of the air-cooled refrigerator is stopped, the humidity of the moisturizing chamber is less than or equal to a first preset humidity and the temperature of the moisturizing chamber is greater than the first preset temperature so as to conduct the moisturizing chamber and the air supply duct, so that the moisturizing chamber is humidified by melting a frost layer of the evaporator after the compressor is stopped.
Description
Technical Field
The invention relates to the technical field of cold storage and freezing storage, in particular to an air-cooled refrigerator and a control method thereof.
Background
Compared with a direct-cooling refrigerator, the air-cooling refrigerator has obvious advantages, such as small temperature fluctuation, higher temperature uniformity, no need of manual defrosting and the like, and therefore the market share of the air-cooling refrigerator is higher and higher. However, in the cooling process, the air in the compartment passes through the low-temperature evaporator, and water vapor in the air is condensed into frost on the evaporator, so that the humidity of the compartment is obviously reduced, and the humidity in the compartment of the air-cooled refrigerator is low. For vegetables and fruits which need to be preserved with high humidity, when the vegetables and the fruits are stored in a refrigerating chamber of an air-cooled refrigerator, the water loss rate is high, and the fresh-keeping effect is poor.
The existing refrigerator is generally provided with a sealed box inside a refrigerating chamber, moisture evaporated from stored food cannot leak out, or a moisture permeable film with a specific specification is used on a cover plate of the box, and when the humidity in the box exceeds a certain value, the moisture can leak out, so that the moisture preservation effect is achieved.
However, since the sealed box is disposed inside the refrigerating chamber, the temperature of the sealed box is substantially the same as the temperature of the refrigerating chamber, and cannot be independently adjusted, and the air inside the sealed box is in a sealed state and is in natural convection, and the temperature uniformity is poor, the volume of the sealed box is generally difficult to expand.
Disclosure of Invention
An object of the present invention is to provide an air-cooled refrigerator and a control method thereof, which can solve at least the above technical problems.
It is a further object of the present invention to regulate the temperature and humidity of the humidity-maintaining compartment individually.
According to an aspect of the present invention, there is provided, in a first aspect, an air-cooled refrigerator including:
a case defining a moisturizing compartment therein;
an evaporator chamber within the tank housing an evaporator configured to cool an airflow passing therethrough forming a cooled airflow;
the air supply duct is positioned at the downstream of the evaporator chamber in the airflow flowing direction, is communicated with the evaporator chamber and is provided with a moisturizing air supply outlet communicated with the moisturizing chamber;
the air door of moisturizing, set up in the air supply wind channel, configure to and work as the compressor of air-cooled refrigerator is shut down, just the humidity of moisturizing room is less than or equal to first predetermined humidity just open when the temperature of moisturizing room is greater than first predetermined temperature, in order to incite somebody to action the moisturizing room with the air supply wind channel switches on, thereby utilizes after the compressor shuts down, melting on the frost layer of evaporimeter does the moisturizing room humidification.
Optionally, the moisture retention damper is further configured to be closed when a compressor of the air-cooled refrigerator is stopped, the humidity of the moisture retention chamber is equal to or greater than a second preset humidity or the temperature of the moisture retention chamber is equal to or less than a second preset temperature, the second preset humidity is greater than the first preset humidity, and the second preset temperature is less than the first preset temperature.
Optionally, a storage chamber which is vertically distributed with the moisturizing chamber is further defined in the box body, and the volume of the storage chamber is larger than that of the moisturizing chamber;
the air supply duct is provided with a storage air supply outlet communicated with the storage chamber;
the air-cooled refrigerator also comprises a storage air door arranged in the air supply air channel, and the storage air door is configured to be opened when the temperature of the storage chamber is equal to or higher than a third preset temperature when the compressor runs so as to conduct the air supply air channel and the storage chamber, so that cold air flow is conveyed to the storage chamber.
Optionally, the moisture retention damper is further configured to open when the temperature of the moisture retention compartment is greater than a fourth preset temperature when the compressor is running, and the fourth preset temperature is greater than the first preset temperature.
Optionally, the air-cooled refrigerator further comprises:
the air feeder is arranged in the air feeding air duct and is configured to promote the cooling air cooled by the evaporator to enter the moisturizing chamber and/or the storage chamber;
the forced draught blower is still configured to be in when the compressor is moved, with first rotational speed operation the compressor is shut down just the humidity of moisturizing compartment is less than or equal to first predetermined humidity just the temperature of moisturizing compartment is greater than during the first predetermined temperature, with being less than the second rotational speed operation of first rotational speed.
Optionally, the compartment wall of the storage compartment is formed with a return air inlet communicated with the evaporator chamber, so that return air of the storage compartment flows into the evaporator chamber through the return air inlet and is cooled again by the evaporator.
Optionally, the air-cooled refrigerator further comprises:
the moisture-preserving return air duct is connected with the moisture-preserving chamber and the evaporator chamber, and is set to convey the return air of the moisture-preserving chamber to the evaporator chamber and cool the evaporator again.
According to another aspect of the present invention, the present invention further provides a control method for an air-cooled refrigerator, where the air-cooled refrigerator is any one of the air-cooled refrigerators, the control method includes:
detecting the state of a compressor of the air-cooled refrigerator;
detecting the temperature and humidity of the moisture-preserving chamber;
if the compressor is in a shutdown state, the humidity of the moisturizing chamber is less than or equal to a first preset humidity, and the temperature of the moisturizing chamber is greater than a first preset temperature, the moisturizing air door is opened.
Optionally, a storage compartment which is distributed up and down with the moisturizing compartment is further defined in the box body of the air-cooled refrigerator, a storage air supply opening communicated with the storage compartment is formed in an air supply duct of the air-cooled refrigerator, and the air-cooled refrigerator further comprises a storage air door;
the control method further comprises the following steps:
detecting the temperature of the storage chamber;
if the compressor is in an operating state, when the temperature of the storage chamber is equal to or greater than the third preset temperature, the storage air door is opened, if the temperature of the moisturizing chamber is greater than the fourth preset temperature, the moisturizing air door is opened, and the fourth preset temperature is greater than the first preset temperature.
Optionally, the air-cooled refrigerator further comprises a blower arranged in the blower duct and configured to force the cooling air cooled by the evaporator to enter the moisturizing compartment and/or the storage compartment;
the control method further comprises the following steps:
if the compressor is in the running state, the blower runs at a first rotating speed;
if the compressor is in a shutdown state, the humidity of the moisturizing chamber is less than or equal to the first preset humidity and the temperature of the moisturizing chamber is greater than during the first preset temperature, the blower operates at the second rotating speed which is less than the first rotating speed.
According to the air-cooled refrigerator and the control method thereof, the moisture preservation chamber is independently arranged in the refrigerator body, the evaporator chamber is communicated with the moisture preservation chamber through the air supply duct, when the compressor stops, the temperature of the evaporator gradually rises, the frost layer of the evaporator continuously melts, water vapor enters the moisture preservation chamber through the air supply duct to improve the humidity of the moisture preservation chamber, the frost layer of the evaporator melts to provide cold energy for the moisture preservation chamber, the temperature rise of the moisture preservation chamber is prolonged, and therefore the humidity and the temperature of the moisture preservation chamber can be independently adjusted; and because the moisturizing compartment is independently arranged, the selectivity of the volume design is more, and the storage volume of the moisturizing compartment can be enlarged. In addition, one of the conditions for opening the moisturizing air door is defined as that the temperature of the moisturizing chamber is higher than a first preset temperature, so that the phenomenon that when the moisturizing chamber is humidified, the temperature is too low to influence the freshness preservation of the articles in the moisturizing chamber is avoided.
Furthermore, the volume of the moisturizing chamber is set to be smaller than that of the storage chamber, so that the refrigerating capacity required by the moisturizing chamber is far smaller than that of the storage chamber, and the frosting amount formed in the refrigerating process of the storage chamber can basically meet the refrigerating requirement of the moisturizing chamber.
Furthermore, according to the air-cooled refrigerator and the control method thereof, when the evaporator frosts less and the cold quantity provided for the moisturizing chamber is insufficient, the compressor can be used for providing the cold quantity for the moisturizing chamber, so that the moisturizing chamber can be adjusted to a proper temperature.
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 side sectional view of an air-cooled refrigerator according to one embodiment of the present invention with a moisture retention damper open;
FIG. 2 is a front cross-sectional view of an air-cooled refrigerator according to one embodiment of the present invention with the storage damper closed and the moisturizing damper open;
FIG. 3 is a side sectional view of an air-cooled refrigerator according to one embodiment of the present invention with a storage damper open;
FIG. 4 is a front cross-sectional view of an air-cooled refrigerator according to one embodiment of the present invention with the storage damper open and the moisturizing damper closed;
fig. 5 is a flowchart illustrating a control method of an air-cooled refrigerator according to an embodiment of the present invention; and
fig. 6 is a flowchart illustrating a control method of an air-cooled refrigerator according to another embodiment of the present invention.
Detailed Description
For convenience of description, the directions of "up", "down", "front", "back", "top", "bottom", "lateral", and the like mentioned in the specification are all defined according to the spatial position relationship of the air-cooled refrigerator 100 in the normal operating state. The air-cooled refrigerator 100 of the present embodiment is described in detail below with reference to fig. 1 to 4.
Fig. 1 is a side sectional view of an air-cooled refrigerator 100 according to an embodiment of the present invention, in which a moisture retention damper is open, fig. 2 is a front sectional view of the air-cooled refrigerator 100 according to an embodiment of the present invention, in which a storage damper 104 is closed and a moisture retention damper 103 is open, fig. 3 is a side sectional view of the air-cooled refrigerator 100 according to an embodiment of the present invention, in which the storage damper 104 is open, and fig. 4 is a front sectional view of the air-cooled refrigerator 100 according to an embodiment of the present invention, in which the storage damper 104 is open and the moisture retention damper 103 is closed.
The air-cooled refrigerator 100 generally includes a cabinet 110, an evaporator chamber 113 disposed within the cabinet 110, the evaporator chamber 113 having an evaporator 101 disposed therein, the evaporator 101 configured to cool an air flow passing therethrough to form a cooled air flow. Specifically, the cabinet 110 of the air-cooled refrigerator 100 of the present embodiment further defines a moisturizing compartment 112 therein, the air-cooled refrigerator 100 further includes a supply air duct 114 located downstream of the evaporator chamber 113 in the airflow direction, the supply air duct 114 communicates with the evaporator chamber 113 and has a moisturizing supply air outlet 112a communicating with the moisturizing compartment 112, that is, the cooling energy of the evaporator 101 can enter the moisturizing compartment 112 through the supply air duct 114 to regulate the temperature of the moisturizing compartment 112. The air supply duct 114 is further provided with a moisture retention damper 103 configured to be opened when the compressor 107 of the air-cooled refrigerator 100 is stopped, the humidity of the moisture retention chamber 112 is less than or equal to a first preset humidity, and the temperature of the moisture retention chamber 112 is greater than a first preset temperature, so as to conduct the moisture retention chamber 112 and the air supply duct 114, so that the moisture retention chamber 112 is humidified by melting of the frost layer of the evaporator 101 after the compressor 107 is stopped.
In the embodiment, the moisture-preserving chamber 112 is separately added in the box body 110, the evaporator chamber 113 is communicated with the moisture-preserving chamber 112 through the air supply duct 114, when the compressor 107 is stopped, the temperature of the evaporator 101 is gradually increased, the frost layer of the evaporator 101 is continuously melted, water vapor enters the moisture-preserving chamber 112 through the air supply duct 114 to improve the humidity of the moisture-preserving chamber 112, the melting of the frost layer of the evaporator 101 provides cold for the moisture-preserving chamber 112, the temperature rise of the moisture-preserving chamber 112 is prolonged, and therefore the humidity and the temperature of the moisture-preserving chamber 112 can be independently adjusted; in addition, since the moisturizing chamber 112 is independently provided, the volume design is more selective, and the storage volume of the moisturizing chamber 112 can be enlarged. In addition, one of the conditions for opening the moisturizing damper 103 is defined that the temperature of the moisturizing compartment 112 is higher than the first preset temperature, so that the situation that the temperature of the moisturizing compartment 112 is too low to affect the freshness keeping of the articles in the moisturizing compartment 112 when the moisturizing compartment 112 is humidified is avoided.
The first predetermined humidity may be determined according to a humidity range required by the stored articles in the humidity-maintaining chamber 112, where the first predetermined humidity is a lower limit of the humidity-maintaining chamber 112, and when the humidity of the humidity-maintaining chamber 112 is lower than the first predetermined humidity, the stored articles may be greatly affected. The first preset temperature may be determined according to a shutdown point temperature of the moisturizing chamber 112, where the shutdown point temperature of the moisturizing chamber 112 refers to a temperature at which the temperature of the moisturizing chamber 112 reaches the set temperature and cold transportation to the moisturizing chamber 112 needs to be stopped.
The humidity and temperature of the humidity chamber 112 can be detected by the temperature/humidity sensor 106 provided in the humidity chamber 112.
The moisture retention damper 103 is also configured to close when the compressor 107 is shut down, the humidity of the moisture retention compartment 112 is equal to or greater than a second preset humidity, which is obviously greater than the first preset humidity, or the temperature of the moisture retention compartment 112 is equal to or less than a second preset temperature, which is less than the first preset temperature. Therefore, the humidity of the moisture-keeping chamber 112 is adjusted to a proper value, and the temperature of the moisture-keeping chamber 112 is adjusted to a proper value, so that the moisture-keeping chamber is suitable for foods such as vegetables and fruits which need to be stored at high humidity, and is beneficial to keeping the freshness of the products.
The second predetermined humidity may be determined according to a humidity range required for storing the stored items in the humidity-maintaining chamber 112, where the second predetermined humidity is an upper limit value of the humidity-maintaining chamber 112, and when the humidity of the humidity-maintaining chamber 112 is higher than the second predetermined humidity, the second predetermined humidity may have a greater influence on the stored items. The second predetermined temperature may also be determined based on a shutdown point temperature of the moisturizing compartment 112, and the second predetermined temperature may be equal to or slightly less than the shutdown point temperature.
The air-cooled refrigerator 100 also includes a moisture retention return air duct 105 connecting the moisture retention compartment 112 and the evaporator compartment 113, and configured to convey return air from the moisture retention compartment 112 to the evaporator compartment 113 for re-cooling by the evaporator 101 to circulate air between the moisture retention compartment 112 and the evaporator compartment 113 to promote temperature uniformity within the moisture retention compartment 112.
In some embodiments, a storage compartment 111 is further defined in the cabinet 110, the storage compartment 111 is vertically distributed with the moisture retention compartment 112, the air supply duct 114 is formed with a storage air supply outlet 111a communicated with the storage compartment 111, and a storage damper 104 is disposed in the air supply duct 114, and is configured to open when the temperature of the storage compartment 111 is equal to or greater than a third preset temperature when the compressor 107 is operated, so as to communicate the air supply duct 114 with the storage compartment 111, thereby delivering a cold air flow into the storage compartment 111. In this way, the humidity and temperature of the moisturizing compartment 112 and the temperature of the storage compartment 111 are kept independent and do not affect each other by virtue of the storage air door 104, the moisturizing air door 103 and the air supply duct 114. The third preset temperature can be determined according to the starting point temperature of the storage chamber 111, where the starting point temperature of the storage chamber 111 means that the temperature of the storage chamber 111 rises to a certain value, and a cold airflow needs to be delivered to the storage chamber 111 to lower the storage chamber 111 to the set temperature. In this embodiment, the third predetermined temperature may be equal to or slightly less than the starting point temperature of the storage compartment 111.
And, the volume of the storage compartment 111 is greater than the volume of the moisturizing compartment 112, in the foregoing embodiment, the thickness of the frost layer of the evaporator 101 is mainly determined by the cooling time supplied to the storage compartment 111, and the cooling capacity of the moisturizing compartment 112 is mainly derived from the melting of the frost layer on the evaporator 101, rather than the cooling capacity supplied by the compressor 107, so that the cooling capacity required for the moisturizing compartment 112 is much smaller than the cooling capacity of the storage compartment 111 by setting the volume of the moisturizing compartment 112 to be smaller than the volume of the storage compartment 111, and the amount of frosting formed during the cooling process of the storage compartment 111 can substantially satisfy the cooling demand of the moisturizing compartment 112. For example, the moisture retention compartment 112 has a volume less than or equal to 1/2 of the storage compartment 111.
The compartment wall of the storage compartment 111 is formed with a return air inlet 111b communicated with the evaporator compartment 113 so that the return air of the storage compartment 111 flows into the evaporator compartment 113 through the return air inlet 111b to be recooled by the evaporator 101 to form an air flow circulation between the storage compartment 111 and the evaporator compartment 113, thereby ensuring continuous refrigeration of the storage compartment 111.
As can be seen from the foregoing, the cooling of the humidity retention chamber 112 mainly results from the frost formation of the evaporator 101, not from the cooling capacity provided by the compressor 107, but when the temperature of the humidity retention chamber 112 rises too high, the air-cooled refrigerator 100 of the present embodiment may also provide the cooling capacity to the humidity retention chamber 112 through the compressor 107. Specifically, the moisturizing damper 103 is configured to open when the temperature of the moisturizing compartment 112 is greater than a fourth preset temperature when the compressor 107 is operated, wherein the fourth preset temperature is greater than the first preset temperature. Therefore, when the evaporator 101 has little frost and the cooling capacity provided to the humidity maintaining chamber 112 is insufficient, the air-cooled refrigerator 100 of the embodiment can still ensure the cooling capacity required by the humidity maintaining chamber 112 and adjust the humidity maintaining chamber 112 to a proper temperature.
The fourth preset temperature may be determined according to the temperature of the starting point of the moisturizing chamber 112, where the temperature of the starting point of the moisturizing chamber 112 is a temperature value at which the temperature of the moisturizing chamber 112 rises to a certain value and cooling capacity needs to be provided to the moisturizing chamber 112.
To accelerate the air circulation, a blower 102 may be disposed in the blower duct 114, and configured to force the cooling air cooled by the evaporator 101 into the humidity maintaining compartment 112 and/or the storage compartment 111, and the blower 102 is further configured to operate at a first rotation speed when the compressor 107 is operated, and to operate at a second rotation speed less than the first rotation speed when the compressor 107 is stopped, the humidity of the humidity maintaining compartment 112 is less than or equal to a first preset humidity, and the temperature of the humidity maintaining compartment 112 is greater than a first preset temperature. That is, when the compressor 107 operates to supply cold to the storage compartment 111 and/or, when the aforementioned conditions are satisfied, supplies cold to the moisturizing compartment 112, the blower 102 operates at a higher rotation speed, so that the storage compartment 111 and/or the moisturizing compartment 112 quickly reach a set temperature; when the compressor 107 is stopped and it is necessary to blow the moist air into the moisture retention chamber 112 by using the frost formed on the evaporator 101, the blower 102 is operated at a low rotation speed, so that the moisture retention chamber 112 is maintained at a high humidity, and the air flow speed in the moisture retention chamber 112 is reduced as much as possible, thereby preventing the air drying phenomenon caused by an excessively high air speed and facilitating the storage of the food with a high moisture content. In addition, the blower 102 consumes less power, saving energy.
In the embodiment shown in the drawings, referring to fig. 1 to 4, the aforementioned air supply duct 114 may include a rear moisture retention duct section 1141 located at the rear side of the storage compartment 111, a rear storage duct section 1143, a rear moisture retention duct section 1142 located at the rear side of the moisture retention compartment 112, and an upper storage duct section 1144 located above the moisture retention compartment 112, wherein, the rear moisturizing air duct section 1141 and the rear storage air duct section 1143 are distributed along the transverse direction, and are communicated with the evaporator chamber 113, the moisturizing air door 103 is arranged at one section 1141 of the rear moisturizing air channel, the storage air door 104 is arranged at one section 1143 of the rear storage air channel, the rear second section 1142 of the moisture retention air duct is connected and communicated with the first section 1141 of the rear moisture retention air duct, and the front wall thereof is provided with a moisture retention air supply outlet 112a communicated with the moisture retention compartment 112, the upper storage air duct section 1144 is connected and communicated with the rear storage air duct section 1143, and the lower wall of the upper storage air duct section is provided with a storage air supply outlet 111a communicated with the storage chamber 111. The air supply duct 114 with the special design is utilized to realize independent air supply to the moisturizing chamber 112 and the storage chamber 111, and the air supply duct 114 is ingenious in position design, compact in layout and small in occupied space.
The supply air duct 114 may further include an upstream section (not numbered) of the rear moisture retention duct section 1141 and the rear storage duct section 1143, the upstream section of the duct being connected to and communicating with the evaporator chamber 113, and the blower 102 being disposed in the upstream section of the duct for accelerating the flow of cold air to the moisture retention chamber 112 and/or the storage chamber 111.
The evaporator chamber 113 is located on the rear side of the storage compartment 111 and below the supply air duct 114, i.e., below the upstream section of the air duct. And the moisture retention return air duct 105 may extend from the lateral side wall of the moisture retention compartment 112 to a position below the evaporator compartment 113 so that the return air from the moisture retention compartment 112 enters the evaporator compartment 113 from below the evaporator 101 and thus may flow through the entire evaporator 101 from bottom to top for adequate cooling by the evaporator 101. The return air opening 111b of the storage compartment 111 may be formed at a position below the rear wall of the storage compartment 111 so that the return air of the storage compartment 111 enters the evaporator compartment 113 from below the evaporator 101.
In the embodiment shown in the drawings, the moisture-keeping compartment 112 is located above the storage compartment 111, the storage compartment 111 may be a refrigerating compartment, and the moisture-keeping compartment 112 and the storage compartment 111 may be two compartments defined by one inner container and distributed up and down.
Fig. 5 is a flowchart illustrating a control method of the air-cooled refrigerator 100 according to an embodiment of the present invention, and fig. 6 is a flowchart illustrating a control method of the air-cooled refrigerator 100 according to another embodiment of the present invention.
Referring to fig. 5, the present embodiment further provides a method for controlling the air-cooled refrigerator 100, which includes:
s102, detecting a state of a compressor 107 of the air-cooled refrigerator 100;
s104, detecting the temperature and the humidity of the moisture-preserving chamber 112;
s106, if the compressor 107 is in the shutdown state, the humidity of the humidity-preserving chamber 112 is less than or equal to the first preset humidity, and the temperature of the humidity-preserving chamber 112 is greater than the first preset temperature, the humidity-preserving damper 103 is opened.
In the control method of the embodiment, after the compressor 107 is stopped, the frost layer of the evaporator 101 is melted to raise the humidity of the moisture-preserving chamber 112, so that the humidity of the chamber is kept in a proper range, and the freshness of food in the chamber is kept; meanwhile, the melting of the frost layer of the evaporator 101 provides cold energy to the moisture retention chamber 112, and prolongs the temperature rise of the moisture retention chamber 112, so that the humidity and the temperature of the moisture retention chamber 112 can be independently adjusted.
In an embodiment where the air-cooled refrigerator 100 has the storage compartment 111, the method for controlling the air-cooled refrigerator 100 may further include:
detecting the temperature of the storage compartment 111;
if the compressor 107 is in the running state, the storage air door 104 is opened when the temperature of the storage chamber 111 is equal to or greater than the third preset temperature, and the moisturizing air door 103 is opened when the temperature of the moisturizing chamber 112 is greater than the fourth preset temperature, which is greater than the first preset temperature.
In this way, the humidity and temperature of the moisturizing compartment 112 and the temperature of the storage compartment 111 are kept independent and independent of each other by the storage damper 104, the moisturizing damper 103 and the air supply duct 114. Furthermore, when the temperature of the moisture retention chamber 112 rises high and the evaporator 101 frosts less enough to meet the cooling capacity required by the moisture retention chamber 112, the compressor 107 can be used to provide cooling capacity to the moisture retention chamber 112, so as to ensure that the moisture retention chamber can be adjusted to a proper temperature.
In embodiments where the air-cooled refrigerator 100 further includes a blower 102, the control method may further include:
if the compressor 107 is in the operating state, the blower 102 operates at a first rotational speed;
if the compressor 107 is in the shutdown state, the humidity of the humidity maintaining chamber 112 is less than or equal to the first preset humidity, and the temperature of the humidity maintaining chamber 112 is greater than the first preset temperature, the blower 102 operates at a second rotation speed less than the first rotation speed.
When the compressor 107 operates to supply cold energy to the storage chamber 111 and/or satisfy the aforementioned conditions and supply cold energy to the moisturizing chamber 112, the blower 102 operates at a higher rotation speed, so that the storage chamber 111 and/or the moisturizing chamber 112 quickly reach a set temperature; when the compressor 107 is stopped and it is necessary to blow the moist air into the moisture retention chamber 112 by using the frost formed on the evaporator 101, the blower 102 is operated at a low rotation speed, so that the moisture retention chamber 112 is maintained at a high humidity, and the air flow speed in the moisture retention chamber 112 is reduced as much as possible, thereby preventing the air drying phenomenon caused by an excessively high air speed and facilitating the storage of the food with a high moisture content. In addition, the blower 102 consumes less power, saving energy.
Referring to fig. 6, the present embodiment exemplarily shows a flowchart of another embodiment of a control method of the air-cooled refrigerator 100. The control method comprises the following steps:
s202, detecting a state of the compressor 107 of the air-cooled refrigerator 100;
s204, detecting the temperature and humidity of the moisturizing chamber 112 and the temperature of the storage chamber 111;
s206, if the compressor 107 is in the operating state, the cold storage air door is opened when the temperature of the storage compartment 111 is equal to or greater than the third preset temperature, and if the temperature of the moisture retention compartment 112 is greater than the fourth preset temperature, the moisture retention air door 103 is opened, and the blower 102 operates at the first rotation speed;
s208, if the compressor 107 is in the shutdown state, the humidity of the humidity-preserving chamber 112 is less than or equal to the first preset humidity, and the temperature of the humidity-preserving chamber 112 is greater than the first preset temperature, the humidity-preserving damper 103 is opened, and the blower 102 operates at a second rotation speed less than the first rotation speed.
The air-cooled refrigerator 100 of the embodiment can independently adjust the temperature and humidity of the storage chamber 111 and the humidity preservation chamber 112 by executing the control process, so as to ensure the uniformity of the humidity and the temperature of the humidity preservation chamber 112; in addition, the air flow speed in the moisturizing chamber 112 is reduced as much as possible while the moisturizing chamber 112 is maintained at a high humidity, and the air drying phenomenon caused by an excessively high wind speed is avoided.
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. An air-cooled refrigerator comprising:
a case defining a moisturizing compartment therein;
an evaporator chamber within the tank housing an evaporator configured to cool an airflow passing therethrough forming a cooled airflow;
the air supply duct is positioned at the downstream of the evaporator chamber in the airflow flowing direction, is communicated with the evaporator chamber and is provided with a moisturizing air supply outlet communicated with the moisturizing chamber;
the air door of moisturizing, set up in the air supply wind channel, configure to and work as the compressor of air-cooled refrigerator is shut down, just the humidity of moisturizing room is less than or equal to first predetermined humidity just open when the temperature of moisturizing room is greater than first predetermined temperature, in order to incite somebody to action the moisturizing room with the air supply wind channel switches on, thereby utilizes after the compressor shuts down, melting on the frost layer of evaporimeter does the moisturizing room humidification.
2. The air-cooled refrigerator of claim 1, wherein the air-cooled refrigerator is a refrigerator that uses air as a cooling medium
The air door of moisturizing still configures to and works as air-cooled refrigerator's compressor is shut down, the humidity of room of moisturizing equals or is greater than the second and predetermines humidity or the temperature of room of moisturizing equals or is less than the second and closes when predetermineeing the temperature, the second is predetermine humidity and is greater than first predetermined humidity, the second is predetermine the temperature and is less than first predetermined temperature.
3. The air-cooled refrigerator of claim 1, wherein the air-cooled refrigerator is a refrigerator that uses air as a cooling medium
A storage chamber which is vertically distributed with the moisturizing chamber is further limited in the box body, and the volume of the storage chamber is larger than that of the moisturizing chamber;
the air supply duct is provided with a storage air supply outlet communicated with the storage chamber;
the air-cooled refrigerator also comprises a storage air door arranged in the air supply air channel, and the storage air door is configured to be opened when the temperature of the storage chamber is equal to or higher than a third preset temperature when the compressor runs so as to conduct the air supply air channel and the storage chamber, so that cold air flow is conveyed to the storage chamber.
4. The air-cooled refrigerator of claim 3, wherein the air-cooled refrigerator is a refrigerator
The air door of moisturizing still configures to when the compressor is operation, when the temperature of moisturizing compartment is greater than the fourth and predetermines the temperature and open, the fourth is predetermine the temperature and is greater than first preset temperature.
5. The air-cooled refrigerator of claim 4, further comprising:
the air feeder is arranged in the air feeding air duct and is configured to promote the cooling air cooled by the evaporator to enter the moisturizing chamber and/or the storage chamber;
the forced draught blower is still configured to be in when the compressor is moved, with first rotational speed operation the compressor is shut down just the humidity of moisturizing compartment is less than or equal to first predetermined humidity just the temperature of moisturizing compartment is greater than during the first predetermined temperature, with being less than the second rotational speed operation of first rotational speed.
6. The air-cooled refrigerator of claim 3, wherein the air-cooled refrigerator is a refrigerator
And the compartment wall of the storage compartment is provided with a return air inlet communicated with the evaporator chamber, so that return air in the storage compartment flows into the evaporator chamber through the return air inlet and is cooled again by the evaporator.
7. The air-cooled refrigerator of claim 3, further comprising:
the moisture-preserving return air duct is connected with the moisture-preserving chamber and the evaporator chamber, and is set to convey the return air of the moisture-preserving chamber to the evaporator chamber and cool the evaporator again.
8. A control method of an air-cooled refrigerator according to any one of claims 1 to 7, comprising:
detecting the state of a compressor of the air-cooled refrigerator;
detecting the temperature and humidity of the moisture-preserving chamber;
if the compressor is in a shutdown state, the humidity of the moisturizing chamber is less than or equal to a first preset humidity, and the temperature of the moisturizing chamber is greater than a first preset temperature, the moisturizing air door is opened.
9. The control method according to claim 8, wherein
The refrigerator body of the air-cooled refrigerator is also internally limited with a storage chamber which is distributed up and down with the moisturizing chamber, an air supply duct of the air-cooled refrigerator is provided with a storage air supply outlet which is communicated with the storage chamber, and the air-cooled refrigerator also comprises a storage air door;
the control method further comprises the following steps:
detecting the temperature of the storage chamber;
if the compressor is in an operating state, when the temperature of the storage chamber is equal to or greater than the third preset temperature, the storage air door is opened, if the temperature of the moisturizing chamber is greater than the fourth preset temperature, the moisturizing air door is opened, and the fourth preset temperature is greater than the first preset temperature.
10. The control method according to claim 9, wherein
The air-cooled refrigerator also comprises a blower arranged in the air supply duct and configured to force cooling air cooled by the evaporator to enter the moisturizing chamber and/or the storage chamber;
the control method further comprises the following steps:
if the compressor is in the running state, the blower runs at a first rotating speed;
if the compressor is in a shutdown state, the humidity of the moisturizing chamber is less than or equal to the first preset humidity and the temperature of the moisturizing chamber is greater than during the first preset temperature, the blower operates at the second rotating speed which is less than the first rotating speed.
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| CN202010072307.8A CN113218135A (en) | 2020-01-21 | 2020-01-21 | Air-cooled refrigerator and control method thereof |
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| CN202010072307.8A CN113218135A (en) | 2020-01-21 | 2020-01-21 | Air-cooled refrigerator and control method thereof |
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| CN202010072307.8A Pending CN113218135A (en) | 2020-01-21 | 2020-01-21 | Air-cooled refrigerator and control method thereof |
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| CN113720089A (en) * | 2021-08-31 | 2021-11-30 | 青岛海尔电冰箱有限公司 | Air-cooled refrigerator control method and air-cooled refrigerator |
| DE102023106924A1 (en) | 2022-04-11 | 2023-10-12 | Liebherr-Hausgeräte Ochsenhausen GmbH | Refrigerator and/or freezer |
| DE102022108687A1 (en) | 2022-04-11 | 2023-10-12 | Liebherr-Hausgeräte Ochsenhausen GmbH | Refrigerator and/or freezer |
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Application publication date: 20210806 |