CN110398112B - Accurate humidity-adjusting chamber of air-cooled refrigerator and control method thereof - Google Patents
Accurate humidity-adjusting chamber of air-cooled refrigerator and control method thereof Download PDFInfo
- Publication number
- CN110398112B CN110398112B CN201910815881.5A CN201910815881A CN110398112B CN 110398112 B CN110398112 B CN 110398112B CN 201910815881 A CN201910815881 A CN 201910815881A CN 110398112 B CN110398112 B CN 110398112B
- Authority
- CN
- China
- Prior art keywords
- chamber
- humidity
- air
- refrigerating
- refrigerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- 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
- 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
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
-
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
- F25D2317/04131—Control means therefor
-
- 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
-
- 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 discloses an accurate humidity control chamber of an air-cooled refrigerator and a control method thereof, and relates to the technical field of refrigerator humidity control. The invention comprises a humidifying chamber arranged in a refrigerating chamber; the humidity-adjusting chamber is a chamber surrounded by the coaming, the drawer and the sealing strip; the coaming is fixed on the inner side wall of the refrigerating chamber and the bottom surface of the refrigerating chamber to form a drawer box; the drawer is slidably arranged in the drawer box; the drawer is sealed with the drawer box through a sealing strip; the humidifying device is arranged between the refrigerator side wall and the inner wall of the humidifying chamber. After the main control board of the refrigerator receives the temperature of the humidifying chamber and the humidity of the humidifying chamber transmitted by the temperature and humidity sensor, the switch of the compressor, the air cooler, the electric air door of the refrigerating air duct and the electric air door of the humidifying chamber is controlled, so that the humidity in the humidifying chamber in the refrigerator is regulated, the food is preserved under the proper humidity, the preservation time of the food is prolonged, and the refrigerator is suitable for the cold preservation and the humidity preservation of different foods.
Description
Technical Field
The invention belongs to the technical field of refrigerator humidity control, and particularly relates to an accurate humidity control chamber of an air-cooled refrigerator and a control method of the accurate humidity control chamber.
Background
The occupancy of air-cooled refrigerators in the refrigerator market is increased year by year, and the air-cooled refrigerators are divided into two types, namely a single-system air-cooled refrigerator and a multi-system air-cooled refrigerator, and the main difference is whether a refrigerating chamber is provided with an evaporator or not. The single-system air-cooled refrigerator without an evaporator in the refrigerating chamber is favored by consumers due to high cost performance. However, compared with a double-system air-cooled refrigerator, the biggest disadvantage of the single-system air-cooled refrigerator is that the relative humidity in the refrigerating chamber is too low, the average no-load is generally 20% -30% Rh, and the humidity is difficult to adjust. The preservation of various food materials has different requirements for relative humidity, for example, the relative humidity of dried goods and tea leaves is less than 45%, the relative humidity of cosmetics and medicines is 50-60%, and the relative humidity of fruits and vegetables is more than 80%. The relative humidity directly influences the quality of the food material fresh-keeping effect.
In a single-system refrigerator, one or more areas which are independent in relative sealing are singly divided, so that a method for realizing a drying area (the relative humidity is below 45%) and a moisture preservation area (the relative humidity is above 90%) in the areas is realized by utilizing the current situation that the humidity of a refrigerating chamber of the single-system refrigerator is low, and the humidity is uncontrollable; the method for realizing the moisturizing area is a method for completely sealing an independent area without circulating wind and reserving moisture of food in the moisturizing area, and the moisturizing realized by the method enables harmful gas emitted by the food to accumulate, so that melons and fruits are easy to ripen and mould is easy to grow. The humidity control means of the humidity control area of the single-system air-cooled refrigerator is limited, and the current situation in the industry is that the humidity cannot be adjusted or the humidity adjusting cost is too high.
The invention provides an accurate humidity control chamber of an air-cooled refrigerator and a control method thereof, wherein the humidity control chamber is enclosed by a coaming, a drawer and a sealing strip in a refrigerating chamber; the air outlet of the humidifying chamber is communicated with the refrigerating chamber air duct, the humidifying chamber air return opening is communicated with the refrigerating air return duct, and a humidifying device is arranged between the refrigerator side wall and the inner wall of the humidifying chamber; meanwhile, after the main control board of the refrigerator receives the temperature of the humidifying chamber and the humidity of the humidifying chamber transmitted by the temperature and humidity sensor, the switch of the compressor, the air cooler, the refrigerating air duct electric air door and the humidifying chamber electric air door is controlled, so that the humidity in the humidifying chamber inside the refrigerator is regulated, the food is stored under the proper humidity, and the food storage time is prolonged.
Disclosure of Invention
The invention aims to provide an accurate humidity control chamber of an air-cooled refrigerator and a control method thereof, wherein the humidity control chamber is enclosed by a coaming, a drawer and a sealing strip in a refrigerating chamber; the air outlet of the humidifying chamber is communicated with the refrigerating chamber air duct, the humidifying chamber air return opening is communicated with the refrigerating air return duct, and a humidifying device is arranged between the refrigerator side wall and the inner wall of the humidifying chamber; meanwhile, after the main control board of the refrigerator receives the temperature of the humidifying chamber and the humidity of the humidifying chamber transmitted by the temperature and humidity sensor, the switch of the compressor, the air cooler, the refrigerating air duct electric air door and the humidifying chamber electric air door is controlled, so that the humidity in the humidifying chamber inside the refrigerator is regulated, and food is stored under proper humidity.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an accurate humidity control chamber of an air-cooled refrigerator, which comprises a refrigerator body, a refrigerating chamber, a freezing chamber, an air circulation system, a defrosting system and a humidity control device, wherein the refrigerator body is provided with a refrigerating chamber and a refrigerating chamber; the refrigeration system comprises a compressor, an evaporator, a capillary tube, a filter and a condenser; the compressor is arranged in a compressor cavity below the freezing chamber; the evaporator is communicated with the compressor and is arranged in an evaporator cavity at the rear side of the freezing chamber;
the air circulation system comprises a freezing chamber air channel, a refrigerating chamber air channel and a refrigerating return air channel; one end of the freezing chamber air channel is communicated with the upper part of the evaporator cavity, and the other end of the freezing chamber air channel is communicated with the refrigerating chamber air channel; a refrigerating fan is arranged in the air duct of the freezing chamber; a refrigerating air duct electric air door is arranged at the joint of the refrigerating air return duct and the freezing chamber air duct; one end of the refrigerating return air channel is communicated with the refrigerating chamber through a refrigerating chamber return air inlet, and the other end of the refrigerating return air channel is communicated with the lower part of the evaporator cavity;
the defrosting system comprises a defrosting heater, a water receiving disc and a drain pipe; the defrosting heater is arranged at the bottom of the evaporator cavity; one end of the drain pipe is communicated with the bottom of the hair-dryer cavity, and the other end of the drain pipe is connected to a water receiving disc at the bottom of the refrigerator body; a humidity-adjusting chamber is arranged in the refrigerating chamber;
the humidifying chamber is a chamber surrounded by the coaming, the drawer and the sealing strip; the coaming is fixed on the inner side wall of the refrigerating chamber and the bottom surface of the refrigerating chamber to form a drawer box; the drawer is slidably arranged in the drawer box; the drawer and the drawer box are sealed by a sealing strip;
the back of the inner side of the humidity-adjusting chamber is provided with a humidity-adjusting chamber air outlet and a humidity-adjusting chamber air return opening respectively; the air outlet of the humidifying chamber is communicated with the air duct of the refrigerating chamber; the humidifying chamber air return port is communicated with the refrigerating air return channel; a humidity control chamber electric air door for controlling a humidity control chamber air return opening switch is arranged in the refrigerating chamber air duct; a temperature and humidity sensor is also arranged on the back of the inner side of the humidity regulating cavity;
the humidifying device is arranged between the refrigerator side wall and the inner wall of the humidifying chamber; the humidifying device comprises a connecting pipe, a one-way floating ball valve cavity and a fresh air fan; one end of the connecting pipe extending out of the refrigerator side wall is provided with an air vent cover; the other end of the connecting pipe is communicated with the bottom end of the vertically placed one-way floating ball valve cavity; a floating ball is arranged in the one-way floating ball valve cavity; one side of the one-way floating ball valve cavity is communicated with the fan protection cover; the fan protection cover is fixed on the inner wall of the humidity adjusting chamber and is communicated with the debugging chamber; the diameter of the floating ball is larger than that of the inlet of the one-way floating ball valve cavity, and the diameter of the cavity of the one-way floating ball valve cavity is smaller than that of the cavity of the one-way floating ball valve cavity;
a main control board of the refrigerator is arranged on the back outside the refrigerator body; an evaporator temperature sensor is arranged on the evaporator; the refrigerator main control board is used for receiving the temperature of the humidifying chamber monitored by the temperature and humidity sensor, the humidity of the humidifying chamber and the temperature of the evaporator transmitted by the evaporator temperature sensor; the refrigerator main control board is also used for controlling the switch of the compressor, the air cooler, the electric air door of the refrigerating air duct and the electric air door of the humidifying chamber.
Preferably, the air duct of the freezing chamber is provided with a plurality of freezing air outlets communicated with the freezing chamber; the refrigerating chamber air duct is provided with a plurality of refrigerating air outlets communicated with the refrigerating chamber.
Preferably, the refrigerating chamber liner is also provided with an adsorbent protective cover provided with a plurality of through holes; the absorbent protective cover corresponds to the fan protective cover in position; and the inner side of the adsorbent protecting cover is fixedly provided with a porous adsorbent.
Preferably, an annular fan cover sealing ring is arranged on the inner side wall of the fan protection cover.
Preferably, the top of the one-way floating ball valve cavity is provided with a movable sealing cover; and a reticular baffle is arranged at the communication part of the unidirectional floating ball valve cavity and the fan protection cover.
Preferably, the humidifying device is arranged at the upper part of the refrigerating chamber; the fresh air fan, the unidirectional floating ball valve cavity and the connecting pipe are distributed from top to bottom.
A control method of an accurate humidity control chamber of an air-cooled refrigerator comprises the following steps:
when any compartment of the air-cooled refrigerator requests refrigeration to the main control board of the refrigerator;
s00: the main control board of the refrigerator judges whether the temperature of the humidity regulating cavity is higher than a refrigerating start point Ton; if yes, executing S01; if not, keeping the current state;
s01: the refrigerator main control board controls and opens the electric air door of the refrigerating air duct, the refrigerating fan, the electric air door of the humidifying chamber and the compressor to refrigerate the humidifying chamber; meanwhile, the temperature and humidity sensor transmits the monitored temperature of the humidifying chamber to a main control board of the refrigerator every 30 seconds;
s02: the main control board of the refrigerator judges whether the temperature of the humidifying cavity is smaller than a refrigerating stop point Toff; if yes, recording the total refrigerating time Son of the humidity-regulating chamber and executing S03; if not, keeping the current state;
s03: the main control board of the refrigerator closes the electric air door of the refrigerating air duct and the electric air door of the humidifying chamber to cool the freezing chamber, and simultaneously opens the fresh air fan to humidify the humidifying chamber;
s04: the main control board of the refrigerator judges whether the humidity of the current humidity control chamber reaches a preset humidity threshold H or not; if yes, the main control board of the refrigerator controls the fresh air fan to be turned off, records the shutdown humidification time Soff and executes S05; if not, the current state is maintained;
s05: the main control board of the refrigerator calculates the average humidity Hav in the refrigerating process of the humidifying chamber and the shutdown humidifying process, and calculates the difference delta H between the average humidity Hav and a preset humidity threshold H;
s06: the refrigerator main control board judges that delta H=0; if yes, soff remains unchanged; if not, executing S07;
s07: the refrigerator main control board judges delta H >0; if yes, soff=soff-n and S00 is performed; if not, soff=soff+n and performs S00;
where n is the shutdown humidification time per increase.
Preferably, the average humidity Hav in S05 is calculated as follows:
Hav＝∑(Hoff+H30s+H60s……HON)/(Son+Soff)；
wherein, hoff is the humidity value in the humidity control chamber when the fresh air fan is closed; the HON is a humidity value in the humidifying chamber when the electric air door of the refrigerating air duct and the electric air door of the humidifying chamber are opened; the H30s is a humidity value in the humidity regulating cavity after the electric air door of the refrigerating air duct is opened for 30 s; and H60s is a humidity value in the humidity regulating cavity after the electric air door of the refrigerating air duct is opened for 60 s.
One aspect of the present invention has the following beneficial effects:
1. the invention encloses a humidity-adjusting cavity through the coaming, the drawer and the sealing strip in the refrigerating chamber; the air outlet of the humidifying chamber is communicated with the refrigerating chamber air duct, the humidifying chamber air return opening is communicated with the refrigerating air return duct, and a humidifying device is arranged between the refrigerator side wall and the inner wall of the humidifying chamber; meanwhile, after the main control board of the refrigerator receives the temperature of the humidifying chamber and the humidity of the humidifying chamber transmitted by the temperature and humidity sensor, the switch of the compressor, the air cooler, the electric air door of the refrigerating air duct and the electric air door of the humidifying chamber is controlled, so that the humidity in the humidifying chamber in the refrigerator is regulated, the food is preserved under the proper humidity, the preservation time of the food is prolonged, and the refrigerator is suitable for the cold preservation of different foods;
2. according to the invention, a main control board of the refrigerator calculates the average humidity Hav in the refrigerating process of the humidifying chamber and the shutdown humidifying process, calculates the difference delta H between the average humidity Hav and a preset humidity threshold H, and determines the shutdown humidifying time Soff for one time of washing; the no-load average humidity of the humidity-regulating chamber is controlled to be between 30 and 90 percent, and the adjustment precision reaches 1 percent; the humidity of the humidity-regulating chamber of the air-cooled refrigerator can meet the storage requirements of various food materials, and the humidity-regulating chamber not only can be used for storing dry goods and tea (the relative humidity is below 45 percent), but also can be used for storing cosmetics and medicines (the relative humidity is about 50 percent) and fruits and vegetables (the relative humidity is above 80 percent); the adjusting range is large, the cost is low, and the precision is high.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a side cross-sectional view of an air-cooled refrigerator with a precision humidity chamber closed;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a front view of an air-cooled refrigerator with a precise humidity chamber of the present invention with the door opened;
FIG. 4 is an enlarged view of B in FIG. 3;
FIG. 5 is a table showing absolute humidity versus relative humidity;
fig. 6 is a flowchart of a control method of an accurate humidity control chamber of an air-cooled refrigerator.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "middle," "length," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-4, the invention discloses an accurate humidity control chamber of an air-cooled refrigerator, which comprises a refrigerator body, a refrigerating chamber 1, a freezing chamber 2, an air circulation system, a defrosting system and a humidity control device; the refrigeration system includes a compressor 31, an evaporator 32, a capillary tube, a filter, and a condenser; the compressor 31 is installed in the compressor chamber below the freezing chamber 2; the evaporator 32 communicates with the compressor 31 and the evaporator 32 is installed in an evaporator chamber at the rear side of the freezing chamber 2; the specific use is as follows: the main control board 6 of the refrigerator controls the compressor 31 and the refrigerating fan 22 to be opened, so that cold air is blown into the freezing chamber 2 for refrigeration; meanwhile, the main control board of the refrigerator controls cold air blowing and refrigeration to the refrigerating chamber through controlling the electric air door 13; since the evaporator 32 is kept below the low temperature of minus 18 ℃ for a long time, the temperature is far lower than the dew point temperature of the refrigerating chamber, and after cold air enters the refrigerating chamber 1 through the electric freezing chamber air duct 21 and the refrigerating chamber air duct 11, most of water vapor in the cold air is condensed on the evaporator 32 to become frost in the evaporator chamber, so that the relative humidity in the refrigerating chamber 1 is only 20-30%;
the air circulation system comprises a freezing chamber air duct 21, a refrigerating chamber air duct 11 and a refrigerating return air duct 12; one end of the freezing chamber air duct 21 is communicated with the upper part of the evaporator cavity, and the other end is communicated with the refrigerating chamber air duct 11; a refrigerating fan 22 is arranged in the freezing chamber air duct 21; a refrigerating air duct electric air door 13 is arranged at the joint of the refrigerating air return duct 12 and the freezing chamber air duct 21; one end of the refrigerating return air channel 12 is communicated with the refrigerating chamber 1 through a refrigerating chamber return air inlet, and the other end is communicated with the lower part of the evaporator cavity;
the defrosting system comprises a defrosting heater 33, a water receiving disc 35 and a drain pipe 34; the defrosting heater 33 is arranged at the bottom of the evaporator cavity; one end of the drain pipe 34 is communicated with the bottom of the hair-dryer cavity, and the other end is connected to a water receiving disc 35 at the bottom of the refrigerator body; the specific use is as follows: the main control board 6 of the refrigerator controls the defrosting heater 33 to start, the evaporator 32 is defrosted after heating, the defrosted water is discharged out of the water receiving disc 35 of the refrigerator through the drain pipe 34, and a high-temperature drain pipe is arranged in the water receiving disc 35 and used for evaporating the defrosted water;
a humidity-adjusting chamber is arranged in the refrigerating chamber 1; the humidity-adjusting chamber is a chamber surrounded by the coaming plate 51, the drawer 52 and the sealing strips; the coaming plate 51 is fixed on the inner side wall of the refrigerating chamber 2 and the bottom surface of the refrigerating chamber 2 to form a drawer box; drawer 52 is slidably mounted within the drawer box; the drawer 52 and the drawer box are sealed by sealing strips;
the back of the inner side of the humidity-adjusting chamber is provided with a humidity-adjusting chamber air outlet 53 and a humidity-adjusting chamber air return 54 respectively; the humidifying chamber air outlet 53 is communicated with the refrigerating chamber air duct 11; the humidifying chamber air return port 54 is communicated with the refrigerating air return duct 12; a humidifying chamber electric air door 55 for controlling the opening and closing of the humidifying chamber air return port 54 is arranged in the refrigerating chamber air duct 11; the back of the inner side of the humidity-adjusting chamber is also provided with a temperature and humidity sensor 56;
the humidifying device is arranged between the refrigerator side wall 5a and the humidifying chamber inner wall 5 b; the humidifying device comprises a connecting pipe 41, a one-way floating ball valve cavity 42 and a fresh air fan 43; one end of the connecting pipe 41 extending out of the refrigerator side 5a is provided with a vent cover 411; the other end of the connecting pipe 41 is communicated with the bottom end of a vertically arranged one-way floating ball valve cavity 42; a floating ball 44 is arranged in the unidirectional floating ball valve cavity 42; one side of the one-way floating ball valve cavity 42 is communicated with a fan protection cover 431; the fan protection cover 431 is fixed on the inner wall 5b of the humidity adjusting chamber and is communicated with the adjusting chamber; the diameter of the floating ball 44 is larger than that of the inlet of the one-way floating ball valve cavity 42 and smaller than that of the cavity of the one-way floating ball valve cavity 42;
the specific use is as follows: the main control board 6 of the refrigerator controls the fresh air fan 43 to rotate, the air suction surface of the fresh air fan 43 faces air outside the refrigerator body, and the air blowing surface faces the humidity adjusting chamber; the floating ball 44 in the unidirectional floating ball valve cavity 42 is lifted, and the outside high-humidity air enters the humidifying cavity to realize rapid humidification; when the air pressure in the humidifying cavity is smaller than the external air pressure after the refrigerating system and the air circulating system are started for a certain time and the floating ball 44 is lifted up, external high-humidity air enters the humidifying cavity, so that rapid humidification is realized;
from the thermodynamic perspective, the temperature and absolute humidity determine the relative humidity of the space; wherein, the absolute humidity refers to how much water vapor is contained in the gas; relative humidity refers to the ratio of absolute humidity to the saturated water vapor content of the temperature expressed in percent. When the humidity control chamber of the common air-cooled single-system refrigerator is refrigerated, most of absolute humidity is brought to the low-temperature evaporator 32 to be condensed through air circulation; after stopping the cooling, the relative humidity rises slowly and the peak is low, resulting in too low average relative humidity.
It is known from the air conditioning theory that absolute humidity contained in the same relative humidity is different at different temperatures. The higher the temperature, the greater the absolute humidity in the air; as can be seen from the table in fig. 5, the humidity of the refrigerating chamber 1 is practically supplemented with several grams of absolute humidity to humidify the refrigerating chamber;
suppose 1m at 5 DEG C 3 In the environment, when the relative humidity is about 70%, only 5.09g of water vapor is required to be added into the space. In the natural state, the air-cooled refrigerator can not supplement enough water vapor into the humidity-regulating cavity through gaps such as door seals, rotating beams and the like. Therefore, the invention aims at the problem by utilizing the forced convection method, introduces the air with high external humidity into the humidity-adjusting chamber, and completes the water supplement in a short time, so that the average value of relative humidity in the single-system air-cooled refrigerator is adjusted from the average value of relative humidityThe maximum of 20 percent is improved to 70 percent, thereby reaching the level of a double-system refrigerator and greatly improving the fresh-keeping effect of fruits and vegetables;
a main control board 6 of the refrigerator is arranged on the back outside the refrigerator body; the evaporator 32 is provided with an evaporator temperature sensor 321; the refrigerator main control board 6 is used for receiving the humidity control chamber temperature monitored by the temperature and humidity sensor 56, the humidity of the humidity control chamber and the evaporator temperature transmitted by the evaporator temperature sensor 321; the refrigerator main control board 6 is also used for controlling the switch of the compressor 31, the air cooler 22, the refrigerating air duct electric air door 13 and the humidifying chamber electric air door 55; when the refrigerator main control board 6 is particularly used, after receiving the temperature of the humidifying chamber and the humidity of the humidifying chamber transmitted by the temperature and humidity sensor 56, the refrigerator main control board controls the switches of the compressor 31, the air cooler 22, the refrigerating air duct electric air door 13 and the humidifying chamber electric air door 55, so that the humidity regulation in the humidifying chamber in the refrigerator is realized, the food is stored under the proper humidity, the food storage time is prolonged, and the refrigerator main control board is suitable for the cold storage of different foods.
Wherein, the freezing chamber air duct 21 is provided with a plurality of freezing air outlets communicated with the freezing chamber 2; the refrigerating chamber air duct 11 is provided with a plurality of refrigerating air outlets communicated with the refrigerating chamber 1.
Wherein, the refrigerating chamber liner 1b is also provided with an adsorbent protective cover 45 provided with a plurality of through holes; the absorbent protective cover 45 corresponds to the fan protective cover 431 in position; the porous adsorbent 451 is fixed inside the adsorbent protective cover 45; can adsorb the small particle dust and dust oil smoke peculiar smell in the air, ensure that the fresh air sent into the refrigerating chamber is clean and odorless.
Wherein, the inner side wall of the fan protection cover 431 is provided with an annular fan cover sealing ring 432; the annular fan cover sealing ring 432 is composed of sponge, rubber and the like; is used for sealing, damping and reducing noise.
Wherein, the movable sealing cover 421 is arranged at the top of the one-way floating ball valve cavity 42; a reticular baffle 422 is arranged at the communication part of the unidirectional floating ball valve cavity 42 and the fan protection cover 431; the float ball 44 is prevented from entering the fan guard 431.
Wherein, the humidifying device is arranged at the upper part of the refrigerating chamber 1; the fresh air fan 43, the one-way floating ball valve cavity 42 and the connecting pipe 41 are distributed from top to bottom.
Referring to fig. 6, a control method for an accurate humidity control chamber of an air-cooled refrigerator includes the following steps:
when any compartment of the air-cooled refrigerator requests refrigeration to the refrigerator main control board 6;
s00: the main control board 6 of the refrigerator judges whether the temperature of the humidifying chamber is greater than a cold storage starting point Ton; if yes, executing S01; if not, keeping the current state; here, the temperature in the evaporator chamber increases due to the stoppage of the compressor 31 and the cooling fan 22 before, and the relative humidity of the air in the evaporator chamber is high, and at this time, the refrigerating chamber 1 and the humidity-adjusting chamber are cooled first, and the humidity in the refrigerating chamber 1 and the humidity-adjusting chamber is reduced relatively slowly;
s01: the refrigerator main control board 6 controls and opens the refrigerating air duct electric air door 13, the refrigerating fan 22, the humidifying chamber electric air door 55 and the compressor 31 to refrigerate the humidifying chamber; meanwhile, the temperature and humidity sensor 56 transmits the monitored temperature of the humidifying chamber to the main control board 6 of the refrigerator every 30 seconds; in the refrigerating process of the humidity-adjusting chamber, the air pressure in the humidity-adjusting chamber is larger than the atmospheric pressure outside the refrigerator because the refrigerating fan 22 continuously blows cold air into the humidity-adjusting chamber; therefore, the floating ball 44 is in a natural falling state, and plugs the inlet of the one-way floating ball valve cavity to prevent the cold air from leaking out;
s02: the refrigerator main control board 6 judges whether the temperature of the humidity control chamber is less than a refrigerating stop point Toff; if yes, recording the total refrigerating time Son of the humidity-regulating chamber and executing S03; if not, keeping the current state; here, the refrigeration stop point Toff is smaller than the refrigeration start point Ton, and the refrigeration stop point Toff and the refrigeration start point Ton are temperature intervals maintained by the humidity control chamber;
s03: the main control board 6 of the refrigerator closes the electric air door 13 of the refrigerating air channel and the electric air door 55 of the humidifying chamber to cool the freezing chamber 2, and simultaneously opens the fresh air fan 43 to humidify the humidifying chamber; in the process, as the freezing chamber 2 is refrigerated, air in the humidifying chamber returns to the evaporator chamber through the refrigerating return air duct 12, so that the air pressure in the humidifying chamber is smaller than the atmospheric pressure outside the refrigerator, the floating ball 44 is lifted, and high-humidity air outside the refrigerator enters the refrigerating chamber 1 through the connecting pipe 41 and the one-way floating ball valve cavity 42 to humidify the refrigerating chamber 1; meanwhile, the fresh air fan 43 is turned on, so that the humidifying efficiency is improved, the humidity in the humidifying chamber is improved in a shorter time, and the influence on the refrigerating effect due to the fact that too much cold is leaked for a longer time is avoided; in addition, the floating ball 44 can be kept in a lifted state under the action of the fresh air fan 43; in fact, after the fresh air fan 43 is simply turned on, the fresh air fan 43 blows air in the one-way floating ball valve cavity 42 into the humidity adjusting cavity, the air pressure in the one-way floating ball valve cavity 42 is reduced, and the floating ball 44 can be lifted;
s04: the main control board 6 of the refrigerator judges whether the humidity of the current humidity control chamber reaches a preset humidity threshold H; if yes, the refrigerator main control board 6 controls the fresh air fan 43 to be turned off, records the shutdown humidification time Soff and executes S05; if not, the current state is maintained; specifically, when the fresh air fan 43 is stopped, the air pressure in the humidity adjusting cavity is greater than the air pressure outside the refrigerator, the floating ball 44 is in a naturally falling state, and the inlet of the one-way floating ball valve cavity is blocked to prevent the cold air from leaking out;
s05: the refrigerator main control board 6 calculates the average humidity Hav in the refrigerating and shutdown humidifying process of the humidifying chamber and calculates the difference delta H between the average humidity Hav and a preset humidity threshold H;
s06: judging DeltaH=0 by the refrigerator main control board 6; if yes, soff remains unchanged; if not, executing S07;
s07: judging delta H >0 by the main control board 6 of the refrigerator; if yes, soff=soff-n and S00 is performed; if not, soff=soff+n and performs S00;
where n is the shutdown humidification time per increase.
The average humidity Hav in S05 is calculated as follows:
Hav＝∑Hoff+H30s+H60s……HON/Son+Soff；
wherein Hoff is the humidity value in the humidity-adjusting chamber when the fresh air fan 43 is turned off; HON is the humidity value in the humidity control chamber when the refrigerating air duct electric air door 13 and the humidity control chamber electric air door 55 are opened; h30s is the humidity value in the humidity regulating cavity after the electric air door 13 of the refrigerating air duct is opened for 30 s; h60s is the humidity value in the humidity control chamber after 60s from the opening of the electric air door 13 of the refrigerating air duct.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. An accurate humidity control chamber of an air-cooled refrigerator comprises a refrigerator body, a refrigerating chamber (1), a freezing chamber (2), an air circulation system, a defrosting system and a humidity control device; the refrigerator body comprises a compressor (31), an evaporator (32), a capillary tube, a filter and a condenser; the compressor (31) is arranged in a compressor cavity below the freezing chamber (2); the evaporator (32) is communicated with the compressor (31), and the evaporator (32) is arranged in an evaporator cavity at the rear side of the freezing chamber (2);
the air circulation system comprises a freezing chamber air duct (21), a refrigerating chamber air duct (11) and a refrigerating return air duct (12); one end of the freezing chamber air duct (21) is communicated with the upper part of the evaporator cavity, and the other end of the freezing chamber air duct is communicated with the refrigerating chamber air duct (11); a refrigerating fan (22) is arranged in the freezing chamber air duct (21); a refrigerating air duct electric air door (13) is arranged at the joint of the refrigerating air duct (11) and the freezing air duct (21); one end of the refrigerating return air channel (12) is communicated with the refrigerating chamber (1) through a refrigerating chamber return air inlet, and the other end of the refrigerating return air channel is communicated with the lower part of the evaporator cavity;
the defrosting system comprises a defrosting heater (33), a water receiving disc (35) and a drain pipe (34); the defrosting heater (33) is arranged at the bottom of the evaporator cavity; one end of the drain pipe (34) is communicated with the bottom of the evaporator cavity, and the other end of the drain pipe is connected to a water receiving disc (35) at the bottom of the refrigerator body; the method is characterized in that: a humidity-adjusting chamber is arranged in the refrigerating chamber (1);
the humidifying chamber is a chamber surrounded by a coaming (51), a drawer (52) and a sealing strip; the coaming (51) is fixed on the inner side wall of the refrigerating chamber (1) and the bottom surface of the refrigerating chamber (1) to form a drawer box; the drawer (52) is slidably mounted within the drawer box; the drawer (52) and the drawer box are sealed by a sealing strip;
the back of the inner side of the humidity-adjusting chamber is provided with a humidity-adjusting chamber air outlet (53) and a humidity-adjusting chamber air return opening (54) respectively; the humidifying chamber air outlet (53) is communicated with the refrigerating chamber air duct (11); the humidifying cavity air return port (54) is communicated with the refrigerating air return duct (12); a humidifying chamber electric air door (55) for controlling the opening and closing of a humidifying chamber return air inlet (54) is arranged in the refrigerating chamber air duct (11); a temperature and humidity sensor (56) is also arranged on the back of the inner side of the humidity regulating cavity;
the humidifying device is arranged between the refrigerator side wall (5 a) and the humidifying chamber inner wall (5 b); the humidifying device comprises a connecting pipe (41), a one-way floating ball valve cavity (42) and a fresh air fan (43); one end of the connecting pipe (41) extending out of the refrigerator side wall (5 a) is provided with a vent cover (411); the other end of the connecting pipe (41) is communicated with the bottom end of a vertically placed one-way floating ball valve cavity (42); a floating ball (44) is arranged in the one-way floating ball valve cavity (42); one side of the one-way floating ball valve cavity (42) is communicated with a fan protection cover (431); the fan protection cover (431) is fixed on the inner wall (5 b) of the humidity adjusting chamber and is communicated with the humidity adjusting chamber; the diameter of the floating ball (44) is larger than that of the inlet of the one-way floating ball valve cavity (42), and the diameter of the cavity of the one-way floating ball valve cavity (42) is smaller than that of the inlet of the one-way floating ball valve cavity;
a main control board (6) of the refrigerator is arranged on the back outside the refrigerator body; an evaporator temperature sensor (321) is arranged on the evaporator (32); the refrigerator main control board (6) is used for receiving the humidity control chamber temperature monitored by the temperature and humidity sensor (56), the humidity of the humidity control chamber and the evaporator temperature transmitted by the evaporator temperature sensor (321); the refrigerator main control board (6) is also used for controlling the switch of the compressor (31), the refrigerating fan (22), the refrigerating air duct electric air door (13) and the humidifying chamber electric air door (55);
the control method of the accurate humidity control chamber of the air-cooled refrigerator comprises the following steps:
when any compartment of the air-cooled refrigerator requests refrigeration from a main control board (6) of the refrigerator;
s00: the main control board (6) of the refrigerator judges whether the temperature of the humidifying chamber is higher than a refrigerating start point Ton; if yes, executing S01; if not, keeping the current state;
s01: the refrigerator main control board (6) controls and opens the refrigerating air duct electric air door (13), the refrigerating fan (22), the humidifying cavity electric air door (55) and the compressor (31) to refrigerate the humidifying cavity; simultaneously, the temperature and humidity sensor (56) transmits the monitored temperature of the humidifying chamber to the main control board (6) of the refrigerator every 30 seconds;
s02: the refrigerator main control board (6) judges whether the temperature of the humidifying cavity is smaller than a refrigerating stop point Toff; if yes, recording the total refrigerating time Son of the humidity-regulating chamber and executing S03; if not, keeping the current state;
s03: the main control board (6) of the refrigerator closes the electric air door (13) of the refrigerating air channel and the electric air door (55) of the humidifying chamber to cool the freezing chamber (2), and simultaneously opens the fresh air fan (43) to humidify the humidifying chamber;
s04: the main control board (6) of the refrigerator judges whether the humidity of the current humidity-adjusting chamber reaches a preset humidity threshold H or not; if yes, the refrigerator main control board (6) controls the fresh air fan (43) to be closed, records the shutdown humidifying time Soff and executes S05; if not, the current state is maintained;
s05: the refrigerator main control board (6) calculates the average humidity Hav in the refrigerating process of the humidifying chamber and the shutdown humidifying process, and calculates the difference delta H between the average humidity Hav and a preset humidity threshold H;
s06: the refrigerator main control board (6) judges delta H=0; if yes, soff remains unchanged; if not, executing S07;
s07: the refrigerator main control board (6) judges delta H >0; if yes, soff=soff-n and S00 is performed; if not, soff=soff+n and performs S00;
where n is the shutdown humidification time per increase;
the average humidity Hav in S05 is calculated as follows:
Hav＝∑(Hoff+H30s+H60s……HON)/(Son+Soff)；
wherein, hoff is the humidity value in the humidity control chamber when the fresh air fan (43) is closed; the HON is a humidity value in the humidifying chamber when the electric air door (13) of the refrigerating air duct and the electric air door (55) of the humidifying chamber are opened; the H30s is a humidity value in the humidity regulating cavity after the electric air door (13) of the refrigerating air duct is opened for 30 s; and H60s is a humidity value in the humidity regulating cavity after the electric air door (13) of the refrigerating air duct is opened for 60 s.
2. The precise humidity-adjusting chamber of the air-cooled refrigerator according to claim 1, wherein the freezing chamber air duct (21) is provided with a plurality of freezing air outlets communicated with the freezing chamber (2); the refrigerating chamber air duct (11) is provided with a plurality of refrigerating air outlets communicated with the refrigerating chamber (1).
3. The precise humidity-regulating chamber of the air-cooled refrigerator according to claim 1, wherein the refrigerating chamber liner (1 b) is also provided with an adsorbent protective cover (45) provided with a plurality of through holes; the absorbent protection cover (45) corresponds to the fan protection cover (431) in position; the porous adsorbent (451) is fixed inside the adsorbent protective cover (45).
4. The precise humidity-conditioning chamber of an air-cooled refrigerator according to claim 1, wherein an annular fan cover sealing ring (432) is installed on the inner side wall of the fan protection cover (431).
5. The precise humidity-regulating chamber of the air-cooled refrigerator according to claim 1, wherein a movable sealing cover (421) is arranged at the top of the unidirectional floating ball valve cavity (42); a reticular baffle (422) is arranged at the communication part of the unidirectional floating ball valve cavity (42) and the fan protection cover (431).
6. The precise humidity control chamber of an air-cooled refrigerator according to claim 1, wherein the humidity control device is arranged at the bottom of the refrigerating chamber (1); the fresh air fan (43), the one-way floating ball valve cavity (42) and the connecting pipe (41) are distributed from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815881.5A CN110398112B (en) | 2019-08-30 | 2019-08-30 | Accurate humidity-adjusting chamber of air-cooled refrigerator and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815881.5A CN110398112B (en) | 2019-08-30 | 2019-08-30 | Accurate humidity-adjusting chamber of air-cooled refrigerator and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110398112A CN110398112A (en) | 2019-11-01 |
| CN110398112B true CN110398112B (en) | 2023-09-15 |
Family
ID=68329552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910815881.5A Active CN110398112B (en) | 2019-08-30 | 2019-08-30 | Accurate humidity-adjusting chamber of air-cooled refrigerator and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110398112B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710115A (en) * | 2020-12-29 | 2021-04-27 | 安徽康佳同创电器有限公司 | Dehumidification refrigerator and refrigerator drawer |
| CN112944797B (en) * | 2021-03-08 | 2022-05-10 | 长虹美菱股份有限公司 | Refrigerator vacuum chamber control method |
| CN115875901A (en) * | 2021-09-28 | 2023-03-31 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN115164472A (en) * | 2022-07-20 | 2022-10-11 | 长虹美菱股份有限公司 | A kind of refrigerator |
| CN115289778B (en) * | 2022-08-17 | 2024-04-12 | 长虹美菱股份有限公司 | Temperature and humidity control method and device for medicine refrigerator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122374A (en) * | 2000-10-13 | 2002-04-26 | Sharp Corp | Refrigerator |
| CN102410600A (en) * | 2011-10-31 | 2012-04-11 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and moisture-preserving device |
| CN102937364A (en) * | 2012-10-30 | 2013-02-20 | 合肥美菱股份有限公司 | Control method of air-cooled refrigerator fan |
| CN203837367U (en) * | 2014-04-09 | 2014-09-17 | 澳柯玛股份有限公司 | Moisture preserving mechanism used for refrigerator |
| CN104567192A (en) * | 2014-12-24 | 2015-04-29 | 合肥华凌股份有限公司 | Refrigerator |
| CN204535258U (en) * | 2015-01-22 | 2015-08-05 | 澳柯玛股份有限公司 | A kind of refrigerator moisture keeping preservation device |
| CN105972929A (en) * | 2016-06-24 | 2016-09-28 | 合肥美菱股份有限公司 | Air-cooling refrigerator and control method thereof |
| CN107328154A (en) * | 2017-06-01 | 2017-11-07 | 澳柯玛股份有限公司 | A kind of wind cooling refrigerator and humidification preservation method |
| CN211575653U (en) * | 2019-08-30 | 2020-09-25 | 长虹美菱股份有限公司 | Accurate humidifying cavity of air-cooled refrigerator |
-
2019
- 2019-08-30 CN CN201910815881.5A patent/CN110398112B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122374A (en) * | 2000-10-13 | 2002-04-26 | Sharp Corp | Refrigerator |
| CN102410600A (en) * | 2011-10-31 | 2012-04-11 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and moisture-preserving device |
| CN102937364A (en) * | 2012-10-30 | 2013-02-20 | 合肥美菱股份有限公司 | Control method of air-cooled refrigerator fan |
| CN203837367U (en) * | 2014-04-09 | 2014-09-17 | 澳柯玛股份有限公司 | Moisture preserving mechanism used for refrigerator |
| CN104567192A (en) * | 2014-12-24 | 2015-04-29 | 合肥华凌股份有限公司 | Refrigerator |
| CN204535258U (en) * | 2015-01-22 | 2015-08-05 | 澳柯玛股份有限公司 | A kind of refrigerator moisture keeping preservation device |
| CN105972929A (en) * | 2016-06-24 | 2016-09-28 | 合肥美菱股份有限公司 | Air-cooling refrigerator and control method thereof |
| CN107328154A (en) * | 2017-06-01 | 2017-11-07 | 澳柯玛股份有限公司 | A kind of wind cooling refrigerator and humidification preservation method |
| CN211575653U (en) * | 2019-08-30 | 2020-09-25 | 长虹美菱股份有限公司 | Accurate humidifying cavity of air-cooled refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110398112A (en) | 2019-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110398112B (en) | Accurate humidity-adjusting chamber of air-cooled refrigerator and control method thereof | |
| CN110398111B (en) | Accurate humidifying device of air-cooled refrigerator and control method thereof | |
| CN110440502B (en) | Defrosting and humidifying device of air-cooled refrigerator and control method thereof | |
| US8998177B2 (en) | Humidifying and fresh-keeping device for refrigerator | |
| CN105526758B (en) | A kind of refrigerator | |
| CN207214592U (en) | Wind cooling refrigerator | |
| CN211575653U (en) | Accurate humidifying cavity of air-cooled refrigerator | |
| CN107504755A (en) | Object storage component and there is its refrigeration plant and control method | |
| CN106091535A (en) | Chill box damping control method and wind cooling refrigerator | |
| CN110411115A (en) | A kind of wind cooling refrigerator humidifying device and its control method | |
| CN102287998A (en) | Refrigerator | |
| CN210463716U (en) | Air-cooling moisture-preserving refrigerator | |
| CN210441512U (en) | Accurate humidification device of forced air cooling refrigerator | |
| CN202101488U (en) | Refrigerator | |
| CN207113361U (en) | Refrigerator | |
| CN207214593U (en) | Wind cooling refrigerator | |
| CN207113362U (en) | Refrigerator | |
| CN112393492A (en) | Humidity control method for refrigerating chamber and refrigerator | |
| JP2624051B2 (en) | Freezer refrigerator | |
| CN110513944B (en) | Dual-system refrigerator humidity-adjusting chamber and control method thereof | |
| JP2006010162A (en) | Refrigerator | |
| CN210463715U (en) | Defrosting and humidifying device of air-cooled refrigerator | |
| CN210663535U (en) | Humidity adjusting chamber of dual-system refrigerator | |
| JP3549358B2 (en) | refrigerator | |
| JP2008292140A (en) | Refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |