CN113720089A - Air-cooled refrigerator control method and air-cooled refrigerator - Google Patents

Air-cooled refrigerator control method and air-cooled refrigerator Download PDF

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Publication number
CN113720089A
CN113720089A CN202111014731.8A CN202111014731A CN113720089A CN 113720089 A CN113720089 A CN 113720089A CN 202111014731 A CN202111014731 A CN 202111014731A CN 113720089 A CN113720089 A CN 113720089A
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CN
China
Prior art keywords
air
temperature
evaporator
cooled refrigerator
compartment
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111014731.8A
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Chinese (zh)
Inventor
臧艺强
刘建如
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
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Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202111014731.8A priority Critical patent/CN113720089A/en
Publication of CN113720089A publication Critical patent/CN113720089A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • 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
    • F25D2700/10—Sensors measuring the temperature of the evaporator
    • 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

Abstract

The invention provides an air-cooled refrigerator control method and an air-cooled refrigerator, wherein the air-cooled refrigerator control method comprises the following steps: controlling a compressor of the air-cooled refrigerator to stop after the refrigerating chamber of the air-cooled refrigerator is refrigerated to a preset shutdown temperature; acquiring the temperature of an evaporator of an air-cooled refrigerator; judging whether the temperature of the evaporator is greater than or equal to a first preset threshold value or not; and if so, controlling the operation of a refrigerating fan of the refrigerating chamber so as to improve the humidity of the refrigerating chamber by utilizing the airflow flowing through the evaporator. The first preset threshold is the lowest temperature at which the water vapor of the air in the refrigerating compartment does not precipitate crystals any more when the air in the refrigerating compartment flows through the evaporator. The temperature of the evaporator is judged before the refrigeration fan operates, and when the temperature of the evaporator reaches a first preset threshold value, the refrigeration fan operates. Therefore, the air flows through the evaporator again, and the humidity of the air is increased certainly, so that the technical problem that the humidity of the refrigerating chamber is low is solved.

Description

Air-cooled refrigerator control method and air-cooled refrigerator
Technical Field
The invention relates to household refrigeration equipment, in particular to an air-cooled refrigerator control method and an air-cooled refrigerator.
Background
The fresh fruits and vegetables need low-temperature and high-humidity environment in the storage process, the low-humidity environment can cause the fruits and vegetables to lose water and even to wither, and the low-humidity environment greatly influences the freshness of the fruits and vegetables. The air-cooled refrigerator adopts a method of conveying cold air into a refrigeration chamber of the refrigerator for refrigeration, the refrigeration chamber of the air-cooled refrigerator has the advantages of uniform temperature distribution, high cooling speed, frost-free performance and the like, but the defects of low humidity in the refrigeration chamber, easy water loss of food and even air drying exist.
Disclosure of Invention
The invention aims to provide an air-cooled refrigerator control method and an air-cooled refrigerator, which are used for solving the technical problem of low humidity of a refrigerating chamber.
Particularly, the invention provides a control method of an air-cooled refrigerator, which comprises the following steps:
controlling a compressor of the air-cooled refrigerator to stop after the refrigerating chamber of the air-cooled refrigerator is refrigerated to a preset shutdown temperature;
acquiring the temperature of an evaporator of an air-cooled refrigerator;
judging whether the temperature of the evaporator is greater than or equal to a first preset threshold value or not;
and if so, controlling the operation of a refrigerating fan of the refrigerating chamber so as to improve the humidity of the refrigerating chamber by utilizing the airflow flowing through the evaporator.
Optionally, the step of determining whether the temperature of the evaporator is greater than or equal to a first preset threshold further includes:
if the temperature of the evaporator is less than a first preset threshold value, controlling a refrigerating fan of the refrigerating chamber to stop; and the number of the first and second electrodes,
and returning to the step of acquiring the temperature of the evaporator of the air-cooled refrigerator.
Optionally, the step of controlling the operation of the cooling fan of the cooling compartment is followed by:
acquiring the temperature of the evaporator, and judging whether the temperature of the evaporator is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
and if so, controlling the refrigeration fan to stop running.
Optionally, the step of controlling the refrigeration fan to stop operating includes:
and if the temperature of the refrigerating room is greater than or equal to the preset starting temperature, controlling the compressor and the refrigerating fan to operate.
Optionally, the first preset threshold is selected from a range from a water freezing temperature of an environment where the air-cooled refrigerator is located to a preset shutdown temperature of the refrigeration compartment.
Optionally, the second preset threshold is selected from a range of values from a preset shutdown temperature to a preset startup temperature of the refrigeration compartment.
Optionally, the temperature of the evaporator is measured by a temperature sensor, and the temperature sensor is disposed at a refrigerant inlet of the evaporator.
Optionally, the step of controlling the operation of the cooling fan of the cooling compartment includes: the cooling fan is controlled to operate at a lower wind speed than when the cooling air flow is supplied to the cooling compartment.
According to a second aspect of the present invention, there is provided an air-cooled refrigerator comprising a memory, a processor and a machine executable program stored on the memory and running on the processor, and the processor when executing the machine executable program implements a method according to any one of the above embodiments.
Optionally, the refrigeration compartment comprises: a refrigerated compartment;
the cold storage chamber is provided with a cold storage evaporator and a cold storage fan which are specially used for the cold storage chamber.
The invention provides an air-cooled refrigerator control method and an air-cooled refrigerator, wherein the air-cooled refrigerator control method comprises the following steps: controlling a compressor of the air-cooled refrigerator to stop after the refrigerating chamber of the air-cooled refrigerator is refrigerated to a preset shutdown temperature; acquiring the temperature of an evaporator of an air-cooled refrigerator; judging whether the temperature of the evaporator is greater than or equal to a first preset threshold value or not; and if so, controlling the operation of a refrigerating fan of the refrigerating chamber so as to improve the humidity of the refrigerating chamber by utilizing the airflow flowing through the evaporator. The first preset threshold is the lowest temperature at which the water vapor of the air in the refrigerating compartment does not precipitate crystals any more when the air in the refrigerating compartment flows through the evaporator. The temperature of the evaporator is judged before the refrigeration fan operates, and when the temperature of the evaporator reaches a first preset threshold value, the refrigeration fan operates. Therefore, the air flows through the evaporator again, and the humidity of the air is increased certainly, so that the technical problem that the humidity of the refrigerating chamber is low is solved.
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 view of an air-cooled refrigerator according to one embodiment of the present invention;
FIG. 2 is a schematic view of a refrigeration system of an air-cooled refrigerator according to one embodiment of the present invention;
fig. 3 is a block diagram of an air-cooled refrigerator according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an air-cooled refrigerator control method according to one embodiment of the present invention;
fig. 5 is a flowchart of a control method of an air-cooled refrigerator according to an embodiment of the present invention.
Detailed Description
FIG. 1 is a schematic view of an air-cooled refrigerator according to one embodiment of the present invention; FIG. 2 is a schematic view of a refrigeration system of an air-cooled refrigerator according to one embodiment of the present invention; fig. 3 is a block diagram of an air-cooled refrigerator according to an embodiment of the present invention; FIG. 4 is a schematic diagram of an air-cooled refrigerator control method according to one embodiment of the present invention; fig. 5 is a flowchart of a control method of an air-cooled refrigerator according to an embodiment of the present invention.
Analysis shows that the main reason for the reduction of the humidity in the refrigerating chamber is that moisture in the air in the refrigerating chamber is condensed into frost on the surface of the evaporator in the process that the air in the refrigerating chamber is refrigerated by the evaporator in the refrigerating process of the compressor. As the air in the refrigeration compartment is continuously circulated between the refrigeration compartment and the evaporator compartment, the humidity in the refrigeration compartment is continuously decreased. That is, the evaporator is equivalent to a dehumidifier and continuously dehumidifies the refrigerating chamber, so that the humidity in the refrigerating chamber is continuously reduced, and the fresh-keeping effect of the refrigerating chamber on vegetables and fruits is influenced.
According to the control method of the air-cooled refrigerator 10 and the air-cooled refrigerator 10 provided by the embodiment of the invention, the evaporator compartment is arranged in the refrigerating compartment 100 of the air-cooled refrigerator 10, the evaporator and the refrigerating fan 134 are arranged in the evaporator compartment, and the refrigerating fan 134 is used for providing power for the air in the evaporator compartment so as to enable the air to circulate in the evaporator compartment and the refrigerating compartment 100. The specific type of air-cooled refrigerator 10 is not limited, for example, the refrigeration compartment 100 includes a refrigeration compartment 110 and a freezer compartment 120, wherein the refrigeration compartment 110 is a side-by-side door. In this embodiment, the refrigeration system of the air-cooled refrigerator 10 includes a refrigeration system of the refrigerating compartment 110 and a refrigeration system of the freezing compartment 120, and the refrigeration systems of the refrigerating compartment 110 and the freezing compartment 120 operate independently and do not interfere with each other.
The refrigerating system of the refrigerating compartment 110 comprises a refrigerating evaporator 132 and a refrigerating fan 1341, the air-cooled refrigerator 10 further comprises a refrigerating evaporator 132 compartment, the refrigerating evaporator 132 compartment is arranged at the rear side of the refrigerating compartment 110, and the refrigerating evaporator 132 and the refrigerating fan 1341 are arranged in the refrigerating evaporator 132 compartment. The refrigeration fan 1341 is used to power the air within the refrigeration compartment 110 to circulate the air within the refrigeration evaporator 132 compartment and the refrigeration compartment 110 to gradually cool the air within the refrigeration compartment 110. The refrigeration system of the freezing compartment 120 comprises a freezing evaporator 133 and a freezing fan 1342, the air-cooled refrigerator 10 further comprises a freezing evaporator 133 compartment, the freezing evaporator 133 compartment is arranged at the rear side of the freezing compartment 120, the freezing evaporator 133 and the freezing fan 1342 are arranged in the freezing evaporator 133 compartment, and the freezing fan 1342 is used for providing power for the air in the freezing compartment 120 so as to enable the air to circulate in the freezing evaporator 133 compartment and the freezing compartment.
The air-cooled refrigerator 10 includes different types of independent refrigeration systems that facilitate maintaining the different compartments within their respective temperature ranges while also facilitating maintaining humidity within the refrigerated compartment 110. Taking this embodiment as an example, the temperature of the evaporator needs to be lower than the temperature of the refrigerating compartment 100 to exchange heat with the air in the refrigerating compartment 100 to cool the refrigerating compartment 100, the temperature of the refrigerating compartment 110 is slightly higher than the temperature of the freezing compartment 120, if the same evaporator is used for the refrigerating compartment 110 and the freezing compartment 120, the temperature of the evaporator will be lower than the temperature of the freezing compartment 120, and one evaporator will result in a very low humidity in the refrigerating compartment. The type of air-cooled refrigerator 10 and the refrigeration system of the air-cooled refrigerator 10 in this embodiment are exemplary only and not exclusive.
As shown in fig. 2, the air-cooled refrigerator 10 of the present embodiment employs a refrigeration system including a compressor 131, a condenser 150, a capillary tube 160, a refrigerating compartment evaporator and a freezing compartment evaporator, which are connected as follows. The outlet of the compressor 131 is connected to the inlet of the condenser 150, the outlet of the condenser 150 is connected to the inlet of the capillary tube 160, the outlet of the capillary tube 160 is connected to the inlet of the refrigerating chamber evaporator, the outlet of the refrigerating chamber evaporator is connected to the inlet of the freezing chamber evaporator, and the outlet of the freezing chamber evaporator is connected to the inlet of the compressor 131 to form a closed loop of refrigerant circulation. That is, the refrigerating chamber evaporator and the freezing chamber evaporator are connected in series, and a refrigerant flows from the compressor 131 to the condenser 150, the capillary tube 160, the refrigerating chamber evaporator, the freezing chamber evaporator, and then back to the compressor 131, thereby forming a cycle. It is apparent that the above-described connection relationship of the refrigerating compartment evaporator and the freezing compartment evaporator is merely exemplary and not exclusive. For example, the freezing chamber evaporator may be located upstream of the refrigerating chamber evaporator, or the refrigerating chamber evaporator and the freezing chamber evaporator may be connected in parallel, or a bypass and a valve may be provided between the refrigerating chamber evaporator and the freezing chamber evaporator to control the refrigerant to flow only through the refrigerating chamber or the freezing chamber.
As shown in fig. 3, the air-cooled refrigerator 10 of the present embodiment is further provided with a controller 170. The controller 170 may be a main control device of the air-cooled refrigerator 10, and the controller 170 may include a processor 172 and a memory 171. The memory 171 stores a machine-executable program 1711, and when the machine-executable program 1711 is executed by the processor 172, the method for controlling the air-cooled refrigerator 10 according to any of the embodiments is realized. Processor 172 may be a single core processor 172, a multi-core processor 172, a compute cluster, or any number of other configurations. The memory 171 may include a random access memory 171(RAM), a read only memory 171, a flash memory, or any other suitable storage system.
The machine-executable program 1711 may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages. In some embodiments, various aspects of the present invention may be implemented by personalizing an electronic circuit, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA), that may execute a machine executable program 1711 with state information of computer readable program instructions.
The operation of the refrigerator 10 of the above embodiment will be further described with reference to the control method for the air-cooled refrigerator 10 of the present embodiment, as shown in fig. 4.
Step S402: after the temperature of the refrigerating compartment 100 of the air-cooled refrigerator 10 is refrigerated to the preset shutdown temperature, the compressor 131 of the air-cooled refrigerator 10 is controlled to be shut down.
The temperature sensor 140 is arranged in the refrigerating compartment 100 of the air-cooled refrigerator 10, the temperature sensor 140 is used for detecting the temperature of the refrigerating compartment 100 in real time and sending the information to the controller 170 of the air-cooled refrigerator 10, and the controller 170 is used for judging whether the temperature of the refrigerating compartment 100 is lower than a preset shutdown temperature or not. If the temperature of the current refrigerating compartment 100 is lower than the preset shutdown temperature, the compressor 131 of the air-cooled refrigerator 10 is controlled to stop to prevent the evaporator from further releasing the cold energy to the refrigerating compartment 100.
The refrigeration compartment 100 may be a refrigeration compartment 110 or a freezer compartment 120, or may include both a refrigeration compartment 110 and a freezer compartment 120. The preset shutdown temperature is not particularly limited, and the user can set the shutdown temperature specifically according to needs. The refrigeration compartment 100 is exemplified by a refrigerating compartment, and the temperature of the refrigerating compartment 110 is set to 4 ℃, the shutdown temperature of the refrigerating compartment 110 is set to 2 ℃, and the startup temperature of the refrigerating compartment 110 is set to 6 ℃. When the temperature of the refrigerating compartment 110 is cooled to 2 ℃, the compressor 131 of the air-cooled refrigerator 10 is controlled to stop to prevent the evaporator from further releasing cold energy to the refrigerating compartment 100, so that the temperature of the refrigerating compartment 100 is lower than 2 ℃.
Step S404: the temperature of the evaporator of the air-cooled refrigerator 10 is acquired.
Before the compressor 131 is stopped, the cold energy is continuously released when the refrigerant flows through the evaporator, and the temperature of the evaporator is lower than that of the refrigerating chamber 100. Typically, the temperature of the evaporator is 5 ℃ lower than the set temperature of the refrigeration compartment 100, so that the air in the refrigeration compartment 100 is gradually cooled to the set shutdown temperature as it flows through the evaporator. Since the temperature of the evaporator is 5 ℃ lower than the set temperature of the refrigerating compartment 100, when the air in the refrigerating compartment 100 flows through the evaporator, water vapor in the air is continuously condensed, and the humidity in the air is continuously reduced. That is, in the cooling stage, the evaporator corresponds to a dryer, and the temperature and humidity of the air are continuously decreased as the air passes through the evaporator.
After the compressor 131 is stopped, the temperature of the evaporator is gradually increased, but in a short period, the temperature of the evaporator is still low. If the evaporator temperature is not obtained, the operation of the cooling fan 134 is continued after the compressor 131 is stopped. Under the condition that the temperature of the evaporator is low, when the fan runs, air flows through the evaporator, water vapor in the air can be further condensed, and the humidity of the air can be further reduced. This may result in a further reduction in the humidity and temperature of the air in the refrigeration compartment 100, i.e. may result in the air in the refrigeration compartment 100 being too cold and too dry, which is detrimental to the stabilization of the humidity and temperature of the air in the refrigeration compartment 100. On the contrary, the controller 170 of the air-cooled refrigerator 10 obtains the temperature of the evaporator of the air-cooled refrigerator 10, after the temperature of the evaporator is raised to a certain temperature, the controller 170 controls the operation of the cooling fan 134 of the cooling compartment 100, and after the air flows through the evaporator, the humidity of the air is raised, and the temperature is not changed too much.
In other embodiments, the temperature of the evaporator is measured by a temperature sensor 140, and the temperature sensor 140 is disposed at the refrigerant inlet of the evaporator. The refrigerant inlet of the evaporator is a position where the temperature of the evaporator is the lowest, and the temperature sensor 140 is disposed at the refrigerant inlet of the evaporator, that is, the temperature sensor 140 is disposed at the lowest temperature of the evaporator. The setting position of evaporimeter is used for guaranteeing that the temperature of the evaporimeter that obtains is the minimum temperature of evaporimeter, if the air can not further frosting at the minimum of the temperature of evaporimeter, and the temperature of air can not further reduce, and when other positions of the evaporimeter were flowed through to the air, vapor in the air can not further frosting yet, and the temperature of air can not further reduce yet. Therefore, the temperature sensor 140 is disposed at the refrigerant inlet of the evaporator to ensure that the humidity and temperature of the air are not further reduced when the air flows through the entire evaporator, so as to ensure that the temperature and humidity of the refrigerating compartment 100 are stable.
Step S406: and judging whether the temperature of the evaporator is greater than or equal to a first preset threshold value or not.
The specific value of the first preset threshold is not limited, and in the current environment, the first preset threshold is the lowest temperature at which the water vapor in the air in the refrigeration compartment 100 does not precipitate crystals any more when the air in the refrigeration compartment 100 flows through the evaporator. Therefore, the specific temperature of the first preset threshold is not limited, and is specifically determined according to the temperature of the refrigeration compartment 100, the evaporator temperature, and the like set by the user. Therefore, when the temperature of the evaporator is greater than or equal to the first preset threshold, the humidity of the air can be obviously increased when the air flows through the evaporator.
In other embodiments, if the refrigerated compartment 100 is a refrigerated compartment 110, the first predetermined threshold is selected from a range of values from the freezing temperature of water in the environment in which the air-cooled refrigerator 10 is located to a predetermined shutdown temperature of the refrigerated compartment 100. The refrigeration compartment 100 is a refrigerating compartment, for example, and the freezing temperature of water in the environment where the air-cooled refrigerator 10 is located is 0 ℃ under normal atmospheric pressure. The temperature of the cold storage compartment 110 is set to 4 ℃, the shutdown temperature of the cold storage compartment 110 is 2 ℃, the startup temperature of the cold storage compartment 110 is 6 ℃, and the evaporator temperature is-3 ℃. When the temperature of the cold storage compartment 110 reaches 2 c, the compressor 131 is turned off, at which time the temperature of the air is 2 c and the humidity of the air is at equilibrium humidity upon contact with the-3 c evaporator. Over time, the temperature of both the refrigeration compartment 110 and the evaporator increases, but the humidity of the air in the refrigeration compartment 110 is the humidity at the lowest temperature, i.e., the saturated humidity to which the air comes into contact with the evaporator at the lower temperature of refrigeration. When the temperature of the evaporator is greater than a first predetermined threshold, and the air flows through the evaporator at this temperature, the humidity in the air will reach a humidity equilibrium again within a slightly higher temperature range, so as to increase the humidity in the air. That is, at this time, the cooling fan 134 starts to operate, and the air passes through the evaporator again, and the humidity thereof must be increased. Therefore, the first preset value is set to be selected within a numerical range from the freezing temperature of water in the environment where the air-cooled refrigerator 10 is located to the preset shutdown temperature of the refrigerating compartment 100, which ensures that the humidity of the air in the refrigerating compartment 100 is gradually increased. When the refrigerating compartment 100 is the refrigerating compartment 110, the preset shutdown temperature of the refrigerating compartment is 2 ℃ higher than the freezing temperature of the refrigerating compartment by 0 ℃. Therefore, within the first preset threshold range, the frost on the evaporator also starts to melt, that is, the air increases in humidity for the reason mentioned above, and the frost on the evaporator also starts to melt, which further increases the air humidity. However, if the refrigerating compartment 100 is the freezing compartment 120, the first preset threshold may be set to a preset shutdown temperature, and at this time, the humidity of the air in the freezing compartment 120 gradually increases as the air flows through the evaporator.
Thus, the first predetermined threshold may be the freezing temperature of the water in the environment of the air-cooled refrigerator 10, where the frost on the evaporator just begins to melt and the humidity of the air gradually increases as the air flows through the evaporator. The first predetermined threshold may also be a value at a predetermined shutdown temperature of the refrigerator 10, and when the humidity of the air in the refrigerating compartment 100 is the shutdown temperature, the air contacts with the evaporator to reach a saturation humidity, and when the air flows through the evaporator at the temperature, the humidity of the air is again in a slightly higher temperature range to reach a humidity balance, so as to increase the humidity of the air.
In some other embodiments, the step of determining whether the temperature of the evaporator is greater than or equal to the first preset threshold further includes: if the temperature of the evaporator is less than a first preset threshold value, controlling a refrigerating fan 134 of the refrigerating compartment 100 to stop; and, the step of acquiring the temperature of the evaporator of the air-cooled refrigerator 10 is returned to be executed.
The first preset threshold is the lowest temperature at which the water vapor of the air can not be crystallized when the air flows through the evaporator. That is, if the temperature of the evaporator is lower than the first predetermined threshold, the water vapor in the air will continue to frost while the air flows through the evaporator, and the humidity of the air will then decrease. Therefore, if the temperature of the evaporator is less than the first preset threshold, the cooling fan 134 of the cooling compartment 100 is controlled to stop to prevent the humidity of the air in the cooling compartment 100 from further decreasing, and the temperature of the air is decreased to be lower than the preset shutdown temperature, so as to prevent the temperature of the cooling compartment 100 from being unstable.
The step of obtaining the temperature of the evaporator of the air-cooled refrigerator 10 is executed again until the temperature of the evaporator is greater than the first preset threshold, at this time, the water vapor of the air is not separated out when the air flows through the evaporator, and the humidity of the air can be increased after the air flows through the evaporator.
Step S408: if so, the operation of the cooling fan 134 of the cooling compartment 100 is controlled to increase the humidity of the cooling compartment 100 by the air flow passing through the evaporator.
When the temperature of the evaporator is greater than the first preset threshold, the cooling fan 134 starts to operate, and at this time, when the air in the cooling compartment 100 flows through the evaporator, the humidity of the air is increased, and the temperature of the air can be maintained within the temperature range set by the wet cooling compartment.
In other embodiments, the step of controlling the operation of the cooling fan 134 of the cooling compartment 100 includes obtaining the temperature of the evaporator, and determining whether the temperature of the evaporator is greater than a second preset threshold, where the second preset threshold is greater than the first preset threshold; if yes, the cooling fan 134 is controlled to stop operating.
The specific value of the second preset threshold is not limited, for example, the second preset threshold is selected from a range of values from the preset shutdown temperature to the preset startup temperature of the refrigeration compartment 100.
The refrigeration compartment 100 is a refrigeration compartment, for example, the temperature of the refrigeration compartment 110 is set to 4 ℃, the shutdown temperature of the refrigeration compartment 110 is 2 ℃, the startup temperature of the refrigeration compartment 110 is 6 ℃, and the temperature of the evaporator in the refrigeration state is-3 ℃. When the temperature of the cold storage compartment 110 reaches 2 c, the compressor 131 is turned off, at which time the temperature of the air is 2 c and the humidity of the air is at equilibrium humidity upon contact with the-3 c evaporator. As time goes by, the temperatures of the refrigerating compartment 110 and the evaporator are both increased, but the humidity of the air in the refrigerating compartment 110 is the humidity at the lowest temperature, and at this time, if the cooling fan 134 starts to operate, the humidity of the air passing through the evaporator again is necessarily increased. When the temperature of the evaporator is increased to 4 ℃, frost on the evaporator is completely melted, the optimum temperature of the refrigerating compartment 100 is also 4 ℃, if the refrigerating fan 134 continues to operate, the temperature of the refrigerating compartment 100 is increased, and the humidity is not greatly influenced. Therefore, when the temperature of the evaporator is greater than the second preset threshold, the cooling fan 134 is controlled to stop operating, so that energy is saved, and the temperature of the cooling compartment 100 is prevented from increasing.
In other embodiments, the step of controlling the operation of the cooling fan 134 includes: if the temperature of the refrigerating compartment 100 is greater than or equal to the preset starting temperature, the compressor 131 and the refrigerating fan 134 are controlled to operate.
When the temperature of the refrigerating chamber 100 is greater than or equal to the starting temperature, the temperature of the refrigerating chamber 100 is already too high, the compressor 131 is controlled to operate, and the refrigerant flows through the evaporator again to release cold. The cooling fan 134 operates to cause air in the cooling compartment 100 to flow through the evaporator to reduce the temperature of the cooling compartment 100.
The starting temperature is not particularly limited, and may be selected according to specific needs, and the refrigeration compartment 100 may be the refrigeration compartment 110 or the freezing compartment 120, or include both the refrigeration compartment 110 and the freezing compartment 120. The preset shutdown temperature is not particularly limited, and the user can set the shutdown temperature specifically according to needs. The refrigeration compartment 100 is exemplified by a refrigerating compartment, and the temperature of the refrigerating compartment 110 is set to 4 ℃, the shutdown temperature of the refrigerating compartment 110 is set to 2 ℃, and the startup temperature of the refrigerating compartment 110 is set to 6 ℃.
The step of controlling the operation of the cooling fan 134 of the cooling compartment 100 includes: the cooling fan 134 is controlled to operate at a lower wind speed than when the cooling air flow is supplied to the cooling compartment 100. That is, the rotational speed of the cooling fan 134 is relatively high in the cooling stage, and the rotational speed of the cooling fan 134 is relatively low in the humidification stage. In the cooling stage, the rotation speed of the cooling fan 134 is high, the contact time of the air and the evaporator is short, the water vapor in the air is not condensed, or the condensed water vapor is blown away without being deposited on the evaporator, so that the condensation amount of the water vapor in the air is reduced. Meanwhile, the high rotation speed of the cooling fan 134 can cool the cooling compartment 100 quickly. During the humidification stage, the rotational speed of the refrigeration fan 134 is relatively low so that the air in the refrigeration compartment 100 has sufficient time to increase its humidity.
Fig. 5 is a flowchart of a control method of the air-cooled refrigerator 10 according to an embodiment of the present invention, and as shown in fig. 5, the present embodiment can be further implemented as follows.
Step S502: after the temperature of the refrigerating compartment 100 of the air-cooled refrigerator 10 is refrigerated to the preset shutdown temperature, the compressor 131 of the air-cooled refrigerator 10 is controlled to be shut down.
Step S504: the temperature of the evaporator of the air-cooled refrigerator 10 is acquired.
Step S506: and judging whether the temperature of the evaporator is greater than or equal to a first preset threshold value or not.
Step S508: if the temperature of the evaporator is less than a first preset threshold value, controlling a refrigerating fan of the refrigerating chamber 100 to stop; and, the step of acquiring the temperature of the evaporator of the air-cooled refrigerator 10 is returned to be executed.
Step S510: if so, the operation of the cooling fan 134 of the cooling compartment 100 is controlled to increase the humidity of the cooling compartment by the air flow passing through the evaporator.
Step S520: and acquiring the temperature of the evaporator, and judging whether the temperature of the evaporator is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value.
Step S530: if yes, the cooling fan 134 is controlled to stop operating.
Step S540: if the temperature of the refrigerating compartment 100 is greater than or equal to the preset starting temperature, the compressor and the refrigerating fan 134 are controlled to operate.
According to a second aspect of the present invention, the present invention also provides an air-cooled refrigerator 10, comprising a memory 171, a processor 172 and a machine executable program 1711 stored on the memory 171 and running on the processor 172, and the processor 172 implements the method according to any one of the above embodiments when executing the machine executable program 1711.
In other embodiments, the refrigerated compartment 100 includes a refrigerated compartment 110; the refrigerating compartment 110 is provided with a refrigerating evaporator 132 and a refrigerating fan 1341 dedicated to the refrigerating compartment 110. The air-cooled refrigerator 10 includes different types of independent refrigeration systems that facilitate maintaining the different compartments within their respective temperature ranges while also facilitating maintaining humidity within the refrigerated compartment 110. Taking this embodiment as an example, the temperature of the evaporator needs to be lower than the temperature of the refrigerating compartment 100 to exchange heat with the air in the refrigerating compartment 100 to cool the refrigerating compartment 100, the temperature of the refrigerating compartment 110 is slightly higher than the temperature of the freezing compartment 120, if the same evaporator is used for the refrigerating compartment 110 and the freezing compartment 120, the temperature of the evaporator will be lower than the temperature of the freezing compartment 120, and one evaporator will result in a very low humidity in the refrigerating compartment. The type of air-cooled refrigerator 10 and the refrigeration system of the air-cooled refrigerator 10 in this embodiment are exemplary only and not exclusive.
In the description of the present embodiments, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 an air-cooled refrigerator comprises the following steps:
after the temperature of the refrigerating chamber of the air-cooled refrigerator is refrigerated to a preset shutdown temperature, controlling a compressor of the air-cooled refrigerator to be shut down;
acquiring the temperature of an evaporator of the air-cooled refrigerator;
judging whether the temperature of the evaporator is greater than or equal to a first preset threshold value or not;
and if so, controlling a refrigerating fan of the refrigerating chamber to operate so as to improve the humidity of the refrigerating chamber by utilizing the airflow flowing through the evaporator.
2. The air-cooled refrigerator control method of claim 1,
after the step of judging whether the temperature of the evaporator is greater than or equal to a first preset threshold value, the method further comprises the following steps:
if the temperature of the evaporator is lower than the first preset threshold value, controlling a refrigerating fan of the refrigerating chamber to stop; and the number of the first and second electrodes,
and returning to the step of acquiring the temperature of the evaporator of the air-cooled refrigerator.
3. The air-cooled refrigerator control method of claim 1, wherein the step of controlling the operation of the cooling fan of the cooling compartment is followed by:
acquiring the temperature of the evaporator, and judging whether the temperature of the evaporator is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
and if so, controlling the refrigeration fan to stop running.
4. The air-cooled refrigerator control method of claim 3, wherein the step of controlling the cooling fan to stop operating comprises:
and if the temperature of the refrigerating chamber is greater than or equal to the preset starting temperature, controlling the compressor and the refrigerating fan to operate.
5. The air-cooled refrigerator control method of claim 1,
the first preset threshold value is selected from a numerical range from the water freezing temperature of the environment where the air-cooled refrigerator is located to the shutdown temperature preset in the refrigeration compartment.
6. The air-cooled refrigerator control method of claim 4,
and the second preset threshold value is selected from a numerical range from a preset shutdown temperature of the refrigeration compartment to the preset startup temperature.
7. The control method of the air-cooled refrigerator as claimed in claim 1, wherein the temperature of the evaporator is measured by a temperature sensor, and the temperature sensor is disposed at a refrigerant inlet of the evaporator.
8. The air-cooled refrigerator control method according to claim 1, wherein the step of controlling the operation of the cooling fan of the cooling compartment includes: controlling the refrigerating fan to operate at a lower wind speed than when the refrigerating airflow is supplied to the refrigerating compartment.
9. An air-cooled refrigerator comprising a memory, a processor and a machine executable program stored on the memory and run on the processor, and the processor when executing the machine executable program implements the method of any one of claims 1 to 8.
10. The air-cooled refrigerator of claim 9,
the refrigeration compartment includes: a refrigerated compartment;
the cold storage chamber is provided with a cold storage evaporator and a cold storage fan which are specially used for the cold storage chamber.
CN202111014731.8A 2021-08-31 2021-08-31 Air-cooled refrigerator control method and air-cooled refrigerator Pending CN113720089A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298349A2 (en) * 1987-07-09 1989-01-11 INDUSTRIE ZANUSSI S.p.A. Refrigerating appliance for different temperatures with single-compressor refrigerant circuit and single-thermostat temperature control
US20060144063A1 (en) * 2004-12-30 2006-07-06 Samsung Electronics Co., Ltd. Method for controlling operation of refrigerator
WO2013037176A1 (en) * 2011-09-14 2013-03-21 合肥美的荣事达电冰箱有限公司 Refrigerator and humidity control method for chilling chamber of refrigerator
US20180172331A1 (en) * 2016-12-15 2018-06-21 Samsung Electronics Co., Ltd. Refrigerator
CN113218135A (en) * 2020-01-21 2021-08-06 青岛海尔电冰箱有限公司 Air-cooled refrigerator and control method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298349A2 (en) * 1987-07-09 1989-01-11 INDUSTRIE ZANUSSI S.p.A. Refrigerating appliance for different temperatures with single-compressor refrigerant circuit and single-thermostat temperature control
US20060144063A1 (en) * 2004-12-30 2006-07-06 Samsung Electronics Co., Ltd. Method for controlling operation of refrigerator
WO2013037176A1 (en) * 2011-09-14 2013-03-21 合肥美的荣事达电冰箱有限公司 Refrigerator and humidity control method for chilling chamber of refrigerator
US20180172331A1 (en) * 2016-12-15 2018-06-21 Samsung Electronics Co., Ltd. Refrigerator
CN113218135A (en) * 2020-01-21 2021-08-06 青岛海尔电冰箱有限公司 Air-cooled refrigerator and control method thereof

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