CN110513944B - Dual-system refrigerator humidity-adjusting chamber and control method thereof - Google Patents
Dual-system refrigerator humidity-adjusting chamber and control method thereof Download PDFInfo
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- CN110513944B CN110513944B CN201910917229.4A CN201910917229A CN110513944B CN 110513944 B CN110513944 B CN 110513944B CN 201910917229 A CN201910917229 A CN 201910917229A CN 110513944 B CN110513944 B CN 110513944B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- 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
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a dual-system refrigerator humidifying chamber and a control method thereof, and relates to the technical field of refrigerator humidifying. The invention comprises a refrigerator body, a freezing chamber, a refrigerating system of the refrigerating chamber and a refrigerating system of the freezing chamber; a humidity-adjusting chamber is arranged in the refrigerating chamber; the side wall of the humidifying chamber is provided with a humidifying device. The invention is characterized in that a refrigerating evaporator is arranged in a refrigerating chamber and is controlled to switch to refrigerating in the refrigerating chamber through an electric switching valve; by arranging a humidity-adjusting chamber in the refrigerating chamber; after the main control board of the refrigerator receives humidity of the humidifying chamber and temperature of the humidifying chamber transmitted by the humidity sensor of the humidifying chamber, the main control board of the refrigerator controls the electric switching valve to switch and controls the switch of the compressor, the refrigerating fan of the refrigerating chamber, the electric air door of the humidifying chamber and the fresh air fan to realize humidifying and humidifying in the refrigerating chamber; the food storage device is suitable for food with different humidity requirements and has strong adaptability.
Description
Technical Field
The invention belongs to the technical field of refrigerator humidity control, and particularly relates to a dual-system refrigerator humidity control chamber and a control method thereof.
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. A region is arranged in the double-system air-cooled refrigerator and is specially used for storing food materials sensitive to the relative humidity requirement, such as fruits and vegetables, wherein the high humidity is required to be more than 90%, the cosmetic and medicine are required to be 50% -60%, and the dry tea is required to be less than 45%. The high humidity and low humidity of the double-system refrigerator in the current industry are realized by a method of sealing a certain area.
The invention provides a humidity-regulating chamber of a double-system refrigerator and a control method thereof.A refrigerating evaporator is arranged in a refrigerating chamber and is controlled to be switched into the refrigerating chamber for refrigeration through an electric switching valve; by arranging a humidity-adjusting chamber in the refrigerating chamber; after the main control board of the refrigerator receives humidity of the humidifying chamber and temperature of the humidifying chamber transmitted by the humidity sensor of the humidifying chamber, the main control board of the refrigerator controls the electric switching valve to switch and controls the switch of the compressor, the refrigerating fan of the refrigerating chamber, the electric air door of the humidifying chamber and the fresh air fan to realize humidifying and humidifying in the refrigerating chamber; the food storage which is suitable for different humidity requirements; the applicability is strong.
Disclosure of Invention
The invention aims to provide a humidity-regulating chamber of a double-system refrigerator and a control method thereof, wherein a refrigerating evaporator is arranged in a refrigerating chamber and is controlled to be switched into the refrigerating chamber for refrigeration through an electric switching valve; by arranging a humidity-adjusting chamber in the refrigerating chamber; after the main control board of the refrigerator receives humidity of the humidifying chamber and temperature of the humidifying chamber transmitted by the humidity sensor of the humidifying chamber, the main control board of the refrigerator controls the electric switching valve to switch and controls the switch of the compressor, the refrigerating fan of the refrigerating chamber, the electric air door of the humidifying chamber and the fresh air fan to realize humidifying and humidifying in the refrigerating chamber; and the food storage device is suitable for food with different humidity requirements.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a humidity-regulating chamber of a double-system refrigerator, which comprises a refrigerator body, a freezing chamber, a refrigerating system of the refrigerating chamber and a refrigerating system of the freezing chamber; a humidity-adjusting chamber is arranged in the refrigerating chamber; a humidifying device is arranged on the side wall of the humidifying chamber;
the refrigerating system comprises a refrigerating chamber evaporator and a refrigerating chamber capillary tube which are communicated with each other; the refrigerating chamber evaporator is arranged in the refrigerating chamber; the freezing chamber refrigerating system comprises a freezing chamber evaporator and a freezing chamber capillary tube which are communicated with each other; the refrigerating chamber evaporator and the freezing chamber evaporator are connected with the input end of the compressor; the refrigerating chamber capillary tube and the freezing chamber capillary tube are correspondingly connected with two output ends of the electric switching valve; the input end of the electric switching valve is connected with the output end of the compressor in the compressor cavity through the condenser;
the refrigerating chamber evaporator is arranged in an evaporator cavity between the rear wall of the refrigerating chamber and the refrigerating chamber fan housing; a refrigerating fan of the refrigerating chamber is arranged on the refrigerating chamber fan cover; a refrigerating air outlet communicated with the refrigerating chamber air inlet duct is formed in the refrigerating chamber air cover; a refrigerating air return port communicated with the refrigerating chamber air return channel is formed in the bottom of the rear wall of the refrigerating chamber; a refrigerating room temperature sensor is also arranged in the refrigerating room; a refrigerating evaporator temperature sensor is arranged on the refrigerating chamber evaporator;
the humidity-adjusting chamber is fixed between two parallel coamings between two side walls of the refrigerating chamber; a drawer is arranged in the humidifying cavity in a sealing way; the rear wall of the humidity-adjusting chamber is provided with a humidity-adjusting chamber air inlet and a humidity-adjusting chamber air return opening; the air inlet of the humidity-adjusting chamber is communicated with the air inlet of the refrigerating chamber through the air inlet of the humidity-adjusting chamber; the humidity-adjusting chamber return air inlet is communicated with the refrigerating chamber return air channel through the humidity-adjusting chamber return air channel; a humidifying chamber electric air door is arranged in the humidifying chamber air inlet duct; the rear wall of the humidifying chamber is also provided with a humidifying chamber temperature and humidity sensor;
the humidifying device is arranged between the side wall of the humidifying chamber and the inner side wall of the humidifying chamber; the refrigerating chamber humidifying device comprises a connecting pipe, a unidirectional floating ball valve cavity and a fresh air fan; one end of the connecting pipe extending out of the side wall of the humidity-adjusting chamber) 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 outer wall of the inner side wall of the humidity-adjusting chamber and is communicated with the humidity-adjusting 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 refrigerator main control board is arranged at the top of the refrigerator body; the refrigerator main control board is used for receiving the temperature of the refrigerating chamber transmitted by the temperature sensor of the refrigerating evaporator and the humidity of the humidifying chamber and the temperature of the humidifying chamber transmitted by the temperature sensor of the humidifying chamber; the refrigerator main control board is also used for controlling the switch of the electric switching valve, the switch of the compressor, the refrigerating fan of the refrigerating chamber, the electric air door of the humidifying chamber and the switch of the fresh air fan.
Preferably, the freezing chamber evaporator is arranged in an evaporator cavity between the rear wall of the freezing chamber and the freezing chamber fan housing; a freezing chamber refrigerating fan is arranged on the freezing chamber fan housing; a freezing air outlet communicated with the air inlet channel of the freezing chamber is formed in the freezing chamber fan housing; a freezing return air inlet communicated with the freezing chamber return air duct is formed in the bottom of the rear wall of the freezing chamber; a freezing chamber temperature sensor is also arranged in the freezing chamber; and a freezing evaporator temperature sensor is arranged on the freezing chamber evaporator.
Preferably, the inner side wall of the humidity-adjusting chamber 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 protective cover; a movable sealing cover is arranged at the top of the one-way floating ball valve cavity; and a reticular baffle is arranged at the communication part of the unidirectional floating ball valve cavity and the fan protection cover.
A control method of a humidity-adjusting chamber of a double-system refrigerator comprises the following steps:
let the preset humidity control value in the humidity control chamber be H:
when the humidity control preset value H is less than 45%, the humidity control method is as follows:
s00: after the refrigerating chamber 2 requests refrigeration, the main control board of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated and the refrigerating fan and the compressor of the refrigerating chamber are opened;
s01: the refrigerator main control board judges whether the temperature of the evaporator transmitted by the refrigerating evaporator temperature sensor is smaller than a preset temperature A or not; if yes, executing S04; if not, executing S02;
s02: the refrigerator main control board controls the electric air door of the humidity control chamber to keep an open state;
s03: the main control board of the refrigerator judges whether the humidity of the current humidity control chamber is greater than a preset humidity control value H or whether the temperature of the refrigerating chamber reaches a refrigerating chamber stop point Toff; if yes, executing S04; if not, executing S02;
s04: the refrigerator main control board controls the electric air door of the humidity control chamber to keep a closed state;
when 45% < humidity control preset value H < 90%, the humidity control method is as follows:
a00: after the refrigerating chamber 2 requests refrigeration, the main control board of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated, the refrigerating fan and the compressor of the refrigerating chamber are opened, and meanwhile, the electric air door of the humidifying chamber is opened;
a01: the main control board of the refrigerator judges whether the humidity of the current humidity control chamber is greater than a preset humidity control value H or not; if yes, executing A02; if not, executing A03;
a02: the refrigerator main control board controls and closes the electric air door of the humidity control chamber;
a03: the main control board of the refrigerator judges whether the temperature of the refrigerating chamber is smaller than a refrigerating chamber stop point Toff, if yes, a fresh air fan is turned on, and A01 is executed; if not, keeping the fresh air fan closed;
when the humidity control preset value H is more than 90%, the humidity control method is as follows:
b00: after the refrigerating chamber 2 requests refrigeration, the main control board of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated, the refrigerating fan and the compressor of the refrigerating chamber are opened, and the fresh air fan is opened at the same time;
b01: the main control board of the refrigerator judges whether the temperature of the refrigerating chamber is smaller than a refrigerating chamber stop point Toff, if yes, B02 is executed; if not, executing B00;
and B02: the refrigerator main control board controls the electric switching valve to switch so that the capillary tube of the freezing chamber is communicated and the compressor is closed, and simultaneously, the electric air door of the humidifying chamber is opened and the fresh air fan is closed;
b03: the refrigerator main control board judges whether the temperature of the evaporator is higher than a preset temperature B; if yes, closing an electric air door of the humidifying chamber and a refrigerating fan of the refrigerating chamber; if not, B02 is executed.
Preferably, the preset temperature A is < -5 ℃; the preset temperature B is more than 0 ℃.
One aspect of the present invention has the following beneficial effects:
1. the invention installs the refrigeration evaporator in the refrigeration room and switches to refrigeration room refrigeration through the control of the electric switching valve; by arranging a humidity-adjusting chamber in the refrigerating chamber; after the main control board of the refrigerator receives humidity of the humidifying chamber and temperature of the humidifying chamber transmitted by the humidity sensor of the humidifying chamber, the main control board of the refrigerator controls the electric switching valve to switch and controls the switch of the compressor, the refrigerating fan of the refrigerating chamber, the electric air door of the humidifying chamber and the fresh air fan to realize humidifying and humidifying in the refrigerating chamber; the food storage device is suitable for food with different humidity requirements and has strong adaptability.
2. According to the invention, after a refrigerating request is made in the refrigerating chamber; according to the difference that the humidity adjusting preset value H is less than 45 percent or 45 percent is less than 90 percent or the humidity adjusting preset value H is more than 90 percent, the electric air door of the humidity adjusting chamber, the refrigerating fan of the refrigerating chamber and the switch of the fresh air fan are controlled by different control methods, so that the efficient and rapid humidity adjusting and humidifying in the humidity adjusting chamber according to different humidity keeping requirements are realized, and the humidity adjusting efficiency is convenient and rapid.
3. According to the invention, the humidifying device introduces air with high external moisture content into the humidifying chamber in a forced convection mode, so that moisture supplement is completed in a short time, humidifying energy consumption is reduced, and fruit and vegetable fresh-keeping effect is greatly improved.
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 schematic view of a main view angle structure of a dual-system refrigerator humidity-controlling chamber without a door;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a vertical sectional view of a dual system refrigerator humidity conditioning chamber refrigerated compartment according to the present invention;
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 flow chart of a control method of a humidity control chamber of a dual system refrigerator according to the present invention when the preset humidity control value H is less than 45%;
FIG. 7 is a flow chart of a control method of a humidity control chamber of a dual system refrigerator according to the present invention when 45% < preset humidity control value H < 90%;
FIG. 8 is a flow chart of a control method of a humidity control chamber of a dual-system refrigerator according to the present invention when the preset humidity control value H is greater than 90%.
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 present invention is a dual-system refrigerator humidity-controlling chamber, comprising a refrigerator body, a freezing chamber 1, a refrigerating chamber 2, a refrigerating system of the refrigerating chamber, and a refrigerating system of the freezing chamber; a humidity-adjusting chamber 5 is arranged in the refrigerating chamber 2; the side wall of the humidifying chamber 5 is provided with a humidifying device;
the refrigerating system of the refrigerating chamber comprises a refrigerating chamber evaporator 21 and a refrigerating chamber capillary tube which are communicated with each other; a refrigerating chamber evaporator 21 is installed in the refrigerating chamber 2; the refrigerating system of the freezing chamber comprises a freezing chamber evaporator and a freezing chamber capillary tube which are communicated with each other; the refrigerating chamber evaporator 21 and the freezing chamber evaporator are connected with the input end of the compressor 3; the refrigerating chamber capillary tube and the freezing chamber capillary tube are correspondingly connected with two output ends of the electric switching valve; the input end of the electric switching valve is connected with the output end of the compressor 3 in the compressor cavity through the condenser; wherein, the evaporator of the freezing chamber is arranged in the evaporator cavity between the rear wall of the freezing chamber and the fan housing of the freezing chamber; a refrigerating fan of the freezing chamber is arranged on the fan housing of the freezing chamber; a freezing air outlet communicated with the air inlet channel of the freezing chamber is arranged on the air cover of the freezing chamber; the bottom of the back wall of the freezing chamber is provided with a freezing air return port communicated with the freezing chamber air return channel; a freezing chamber temperature sensor is also arranged in the freezing chamber; a freezing evaporator temperature sensor is arranged on the freezing chamber evaporator; in the specific use process, the main control board 6 of the refrigerator realizes refrigeration of the freezing chamber 1 or the refrigerating chamber 2 by controlling the switching of the electric switching valve;
a refrigerating chamber evaporator 21 is installed in an evaporator chamber between a rear wall of the refrigerating chamber 2 and a refrigerating chamber fan housing 22; a refrigerating fan 23 of the refrigerating chamber is arranged on the refrigerating chamber fan cover 22; a refrigerating air outlet 221 communicated with the refrigerating air inlet duct is formed in the refrigerating chamber fan housing 22; a refrigerating return air port 222 communicated with the refrigerating chamber return air duct is formed in the bottom of the rear wall of the refrigerating chamber 2; a refrigerating room temperature sensor 24 is also arranged in the refrigerating room 2; a refrigerating evaporator temperature sensor 211 is installed on the refrigerating chamber evaporator 21;
the humidity-adjusting chamber 5 is fixed between two parallel coamings 51 between two side walls of the refrigerating chamber 2; a drawer 52 is arranged in the humidity-adjusting chamber 5 in a sealing way; the rear wall of the humidity-controlling chamber 5 is provided with a humidity-controlling chamber air inlet 53 and a humidity-controlling chamber air return 54; the humidity-adjusting chamber air inlet 53 is communicated with the refrigerating chamber air inlet through a humidity-adjusting chamber air inlet channel; the humidifying chamber air return port 54 is communicated with the refrigerating chamber air return port through a humidifying chamber air return port; a humidity-adjusting chamber electric air door 55 is arranged in the humidity-adjusting chamber air inlet duct; the rear wall of the humidity regulating chamber 5 is also provided with a humidity regulating chamber temperature and humidity sensor 56;
the humidifying device is arranged between the side wall 5a of the humidifying chamber and the inner side wall 5b of the humidifying chamber; the refrigerating chamber 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 side wall 5a of the humidity-adjusting chamber 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 outer wall of the inner side wall 5b of the humidity adjusting chamber and 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 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 cavity 5; the floating ball 44 in the unidirectional floating ball valve cavity 42 is lifted, and the outside high-humidity air enters the humidifying chamber 5, so that the rapid humidification is realized; the highest humidity point is raised from 30% to 70%;
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 refrigerating chamber 2 is refrigerated, most of the absolute humidity is brought to the refrigerating chamber evaporator 21 by the wind cycle to be condensed; 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 fig. 5, the table of correspondence between relative humidity and absolute humidity can be realized by actually adding several grams of absolute humidity to the refrigerating chamber 2;
assuming that a relative humidity of 70% is desired in a 1m3 environment at 5 ℃, only 5.09g of water vapor needs to be added to the space. In the natural state, the air-cooled refrigerator cannot supplement enough water vapor into the refrigerating chamber through gaps such as door seals, rotating beams and the like. Therefore, the invention aims at the problem, introduces air with high external moisture content into the refrigerating chamber 2 by using a forced convection method, completes moisture supplement in a short time, and greatly improves the fresh-keeping effect of fruits and vegetables;
a main control board 6 of the refrigerator is arranged at the top of the refrigerator body; the refrigerator main control board 6 is used for receiving the temperature of the refrigerating chamber transmitted by the refrigerating evaporator temperature sensor 211 and the humidity and the temperature of the humidifying chamber transmitted by the humidifying chamber temperature and humidity sensor 56; the refrigerator main control board 6 is also used for controlling the switch of the electric switching valve, and the switch of the compressor 3, the refrigerating chamber refrigerating fan 23, the humidifying chamber electric air door 55 and the fresh air fan 43; when the intelligent humidity control device is particularly used, after the main control board of the refrigerator receives humidity of the humidity control chamber and temperature of the humidity control chamber transmitted by the humidity sensor of the humidity control chamber, the electric switching valve is controlled to switch, and the switch of the compressor, the refrigerating fan of the refrigerating chamber, the electric air door of the humidity control chamber and the fresh air fan is controlled to realize humidity control and humidification in the refrigerating chamber; the storage of foods meeting different humidity requirements is strong in adaptability; the forced convection method is adopted to supplement water into the humidity-adjusting chamber 5 as required, so that the effect of humidity adjustment is achieved, and the preservation humidity of different food materials is met.
Wherein, the inner side wall 5b of the humidity adjusting chamber 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.
Wherein, the inner side wall of the fan protection cover 431 is provided with an annular fan cover sealing ring 432; a movable sealing cover 421 is arranged at the top of the one-way floating ball valve cavity 42; the one-way floating ball valve cavity 42 is provided with a net baffle 422 at the communication position with the fan protection cover 431.
Referring to fig. 6, a control method of a humidity control chamber of a dual-system refrigerator includes the following steps:
let the humidity control preset value in the humidity control chamber be H:
when the humidity control preset value H is less than 45%, the humidity control method is as follows:
s00: after the refrigerating chamber 2 requests refrigeration, the main control board 6 of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated and the refrigerating fan 23 of the refrigerating chamber and the compressor 3 are opened;
s01: the refrigerator main control board 6 judges whether the evaporator temperature transmitted by the refrigerating evaporator temperature sensor 211 is less than a preset temperature A; if yes, executing S04; if not, executing S02;
s02: the refrigerator main control board 6 controls the humidity control chamber electric air door 55 to keep an open state;
s03: the main control board 6 of the refrigerator judges whether the humidity of the current humidity control chamber is greater than a preset humidity control value H or the temperature of the refrigerating chamber reaches a refrigerating chamber stop point Toff; if yes, executing S04; if not, executing S02;
s04: the refrigerator main control board 6 controls the humidity control chamber electric air door 55 to keep a closed state;
in the actual use process: the humidity in the humidity-adjusting chamber 5 is rapidly reduced to about 20% and the fresh air fan 43 is not opened in the whole course; after the temperature of the refrigerating chamber reaches the refrigerating chamber stop point Toff, the humidifying chamber electric damper 55 is closed; then, the humidity regulating chamber 5 is sealed, and no other moisture enters, and the maximum value is slowly increased by about 50%, so that the average humidity is kept at a level less than 45%;
referring to fig. 7, when 45% < preset humidity H < 90%, the humidity control method is as follows:
a00: after the refrigerating chamber 2 requests refrigeration, the main control board 6 of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated, the refrigerating fan 23 of the refrigerating chamber and the compressor 3 are opened, and meanwhile, the electric damper 55 of the humidifying chamber is opened;
a01: the main control board 6 of the refrigerator judges whether the humidity of the current humidity control chamber is greater than a preset humidity control value H; if yes, executing A02; if not, executing A03;
a02: the refrigerator main control board 6 controls and closes the humidity control chamber electric air door 55;
s03: the main control board 6 of the refrigerator judges whether the temperature of the refrigerating chamber is smaller than the shutdown point Toff of the refrigerating chamber, if yes, the fresh air fan 43 is turned on and A01 is executed; if not, keeping the fresh air fan 43 closed;
in the actual use process: because the opening of the electric damper 55 of the humidifying chamber is synchronous with the opening of the refrigerating fan 23 of the refrigerating chamber, the damp-heat load in the evaporator chamber is large, the refrigerating chamber evaporator 21 is seriously overheated, and the overall temperature is high, so that the dehumidifying capacity in the humidifying chamber 5 is reduced; therefore, the lowest humidity point in the humidity-adjusting chamber 5 is generally above 40%; when the humidity sensor 56 of the humidity control chamber monitors the preset humidity control value H, the electric air door 55 of the humidity control chamber is closed; at this time, if the temperature of the refrigerating chamber does not reach the refrigerating chamber stop point Toff yet, the humidity-adjusting chamber electric damper 55 is kept in a closed state, and meanwhile, the refrigerating chamber refrigerating fan 23 and the compressor 3 continue to work to cool the refrigerating chamber 2, in the process, the air pressure in the humidity-adjusting chamber 5 is smaller than the external atmospheric pressure of the refrigerator body, the one-way floating ball valve cavity 42 floats up due to the negative pressure suction effect, and a small amount of high-humidity air enters the humidity-adjusting chamber 5; the humidity in the humidity control chamber 5 rises; if the temperature of the refrigerating chamber reaches the refrigerating chamber stop point Toff, the refrigerating fan 23 and the compressor 3 of the refrigerating chamber stop working, the negative pressure in the humidifying chamber 5 disappears, the main control board 6 of the refrigerator controls the opening of the fresh air fan 43, the one-way floating ball valve cavity 42 is lifted, after the humidity sensor 56 of the humidifying chamber monitors the humidifying preset value H, the fresh air fan 43 is closed, the humidity in the humidifying chamber is humidified by the outside high humidity air in the process, the humidity in the humidifying chamber is rapidly increased, and the overall humidity is 45% -90%;
referring to fig. 8, when the humidity control preset value H is greater than 90%, the humidity control method is as follows:
b00: after the refrigerating chamber 2 requests refrigeration, the main control board 6 of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated, the refrigerating fan 23 of the refrigerating chamber and the compressor 3 are opened, and the fresh air fan 43 is opened at the same time;
b01: the main control board 6 of the refrigerator judges whether the temperature of the refrigerating chamber is smaller than the shutdown point Toff of the refrigerating chamber, if yes, B02 is executed; if not, executing B00;
and B02: the refrigerator main control board 6 controls the electric switching valve to switch so that the capillary tube of the freezing chamber is communicated and the compressor 3 is closed, and simultaneously, the humidifying chamber electric air door 55 is opened and the fresh air fan 43 is closed;
b03: the refrigerator main control board 6 judges whether the temperature of the evaporator is higher than a preset temperature B; if yes, closing the humidifying chamber electric air door 55 and the refrigerating chamber refrigerating fan 23; if not, B02 is executed.
Wherein the preset temperature A is < -5 ℃; the preset temperature B is more than 0 ℃.
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 (4)
1. The control method of the humidity-regulating chamber of the double-system refrigerator is characterized in that the humidity-regulating chamber of the double-system refrigerator comprises a refrigerator body, a freezing chamber (1), a refrigerating chamber (2), a refrigerating chamber refrigerating system and a freezing chamber refrigerating system; a humidity-adjusting chamber (5) is arranged in the refrigerating chamber (2); a humidifying device is arranged on the side wall of the humidifying chamber (5);
the refrigerating system comprises a refrigerating chamber evaporator (21) and a refrigerating chamber capillary tube which are communicated with each other; the refrigerating chamber evaporator (21) is arranged in the refrigerating chamber (2); the freezing chamber refrigerating system comprises a freezing chamber evaporator and a freezing chamber capillary tube which are communicated with each other; the refrigerating chamber evaporator (21) and the freezing chamber evaporator are connected with the input end of the compressor (3); the refrigerating chamber capillary tube and the freezing chamber capillary tube are correspondingly connected with two output ends of the electric switching valve; the input end of the electric switching valve is connected with the output end of a compressor (3) in the compressor cavity through a condenser;
the refrigerating chamber evaporator (21) is arranged in an evaporator cavity between the rear wall of the refrigerating chamber (2) and the refrigerating chamber fan cover (22); a refrigerating fan (23) of the refrigerating chamber is arranged on the refrigerating chamber fan cover (22); a refrigerating air outlet (221) communicated with the refrigerating chamber air inlet duct is formed in the refrigerating chamber air cover (22); a refrigerating air return port (222) communicated with the refrigerating chamber air return channel is formed in the bottom of the rear wall of the refrigerating chamber (2); a refrigerating chamber temperature sensor (24) is also arranged in the refrigerating chamber (2); a refrigerating evaporator temperature sensor (211) is arranged on the refrigerating chamber evaporator (21);
the humidity-adjusting chamber (5) is fixed between two parallel coamings (51) between two side walls of the refrigerating chamber (2); a drawer (52) is arranged in the humidifying chamber (5) in a sealing way; the rear wall of the humidifying chamber (5) is provided with a humidifying chamber air inlet (53) and a humidifying chamber air return opening (54); the humidifying chamber air inlet (53) is communicated with the refrigerating chamber air inlet through the humidifying chamber air inlet duct; the humidifying chamber air return port (54) is communicated with the refrigerating chamber air return port through the humidifying chamber air return port; a humidifying chamber electric air door (55) is arranged in the humidifying chamber air inlet duct; the rear wall of the humidifying chamber (5) is also provided with a humidifying chamber temperature and humidity sensor (56);
the humidifying device is arranged between a side wall (5 a) of the humidifying chamber and an inner side wall (5 b) of the humidifying chamber; the refrigerating chamber 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 side wall (5 a) of the humidity-adjusting chamber 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 outer wall of the inner side 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 refrigerator main control board (6) is arranged at the top of the refrigerator body; the refrigerator main control board (6) is used for receiving the temperature of the refrigerating chamber transmitted by the temperature sensor (211) of the refrigerating evaporator and the humidity and the temperature of the humidifying chamber transmitted by the temperature and humidity sensor (56) of the humidifying chamber; the refrigerator main control board (6) is also used for controlling the switch of the electric switching valve, the switch of the compressor (3), the refrigerating fan (23) of the refrigerating chamber, the electric air door (55) of the humidifying chamber and the switch of the fresh air fan (43);
the control method of the humidity-adjusting chamber of the double-system refrigerator comprises the following steps:
let the preset humidity control value in the humidity control chamber be H:
when the humidity control preset value H is less than 45%, the humidity control method is as follows:
s00: after the refrigerating chamber (2) requests refrigeration, the main control board (6) of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated and the refrigerating fan (23) of the refrigerating chamber and the compressor (3) are opened;
s01: the refrigerator main control board (6) judges whether the evaporator temperature transmitted by the refrigerating evaporator temperature sensor (211) is smaller than a preset temperature A; if yes, executing S04; if not, executing S02;
s02: the refrigerator main control board (6) controls the humidity control chamber electric air door (55) to keep an open state;
s03: the main control board (6) of the refrigerator judges whether the humidity of the current humidity-adjusting chamber is greater than a humidity-adjusting preset value H or whether the temperature of the refrigerating chamber reaches a refrigerating chamber stop point Toff; if yes, executing S04; if not, executing S02;
s04: the refrigerator main control board (6) controls the humidity control chamber electric air door (55) to keep a closed state;
when 45% < humidity control preset value H < 90%, the humidity control method is as follows:
a00: after the refrigerating chamber (2) requests refrigeration, the main control board (6) of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated, the refrigerating fan (23) of the refrigerating chamber and the compressor (3) are opened, and meanwhile, the electric air door (55) of the humidifying chamber is opened;
a01: the main control board (6) of the refrigerator judges whether the humidity of the current humidity regulating chamber is greater than a preset humidity regulating value H; if yes, executing A02; if not, executing A03;
a02: the refrigerator main control board (6) controls and closes the humidifying chamber electric air door (55);
a03: the main control board (6) of the refrigerator judges whether the temperature of the refrigerating chamber is smaller than the shutdown point Toff of the refrigerating chamber, if yes, a fresh air fan (43) is turned on, and A01 is executed; if not, keeping the fresh air fan (43) closed;
when the humidity control preset value H is more than 90%, the humidity control method is as follows:
b00: the refrigerator main control board (6) controls the electric switching valve to switch so that the refrigerating chamber capillary is communicated, the refrigerating chamber refrigerating fan (23) and the compressor (3) are opened, and the fresh air fan (43) is opened at the same time;
b01: the main control board (6) of the refrigerator judges whether the temperature of the refrigerating chamber is smaller than the shutdown point Toff of the refrigerating chamber, if yes, B02 is executed; if not, executing B00;
and B02: after the refrigerating chamber (2) requests refrigeration, the main control board (6) of the refrigerator controls the electric switching valve to switch so that the capillary tube of the refrigerating chamber is communicated and the compressor (3) is closed, and simultaneously, the electric air door (55) of the humidifying chamber is opened and the fresh air fan (43) is closed;
b03: the refrigerator main control board (6) judges whether the temperature of the evaporator is higher than a preset temperature B; if yes, closing a humidifying cavity electric air door (55) and a refrigerating chamber refrigerating fan (23); if not, executing B02;
the preset temperature A is below-5 ℃; the preset temperature B is more than 0 ℃.
2. The method of claim 1, wherein the freezing chamber evaporator is installed in an evaporator chamber between a rear wall of the freezing chamber and a freezing chamber fan housing; a freezing chamber refrigerating fan is arranged on the freezing chamber fan housing; a freezing air outlet communicated with the air inlet channel of the freezing chamber is formed in the freezing chamber fan housing; a freezing return air inlet communicated with the freezing chamber return air duct is formed in the bottom of the rear wall of the freezing chamber; a freezing chamber temperature sensor is also arranged in the freezing chamber; and a freezing evaporator temperature sensor is arranged on the freezing chamber evaporator.
3. The control method of a humidity control chamber of a dual system refrigerator according to claim 1, wherein the inside wall (5 b) of the humidity control chamber is further provided with an adsorbent protection 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 control method of a humidity control chamber of a dual system refrigerator according to claim 1, wherein an annular fan cover sealing ring (432) is installed on an inner side wall of the fan cover (431); a 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).
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| CN201910917229.4A CN110513944B (en) | 2019-09-26 | 2019-09-26 | Dual-system refrigerator humidity-adjusting chamber and control method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060349A (en) * | 1990-09-27 | 1992-04-15 | 三菱电机株式会社 | Refrigerating and cold storage refrigerator |
| JP2001280784A (en) * | 2000-03-30 | 2001-10-10 | Sanyo Electric Co Ltd | Humidity adjusting refrigerator |
| 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 |
| CN105972905A (en) * | 2016-05-17 | 2016-09-28 | 合肥美菱股份有限公司 | Control method of humidifying module of air-cooling refrigerator |
| 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 |
| CN109373694A (en) * | 2018-10-18 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN110207443A (en) * | 2019-06-19 | 2019-09-06 | 长虹美菱股份有限公司 | A kind of adjustable wind cooling refrigerator of humidity and its adjusting method |
| CN210663535U (en) * | 2019-09-26 | 2020-06-02 | 长虹美菱股份有限公司 | Humidity adjusting chamber of dual-system refrigerator |
-
2019
- 2019-09-26 CN CN201910917229.4A patent/CN110513944B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060349A (en) * | 1990-09-27 | 1992-04-15 | 三菱电机株式会社 | Refrigerating and cold storage refrigerator |
| JP2001280784A (en) * | 2000-03-30 | 2001-10-10 | Sanyo Electric Co Ltd | Humidity adjusting refrigerator |
| 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 |
| CN105972905A (en) * | 2016-05-17 | 2016-09-28 | 合肥美菱股份有限公司 | Control method of humidifying module of air-cooling refrigerator |
| 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 |
| CN109373694A (en) * | 2018-10-18 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN110207443A (en) * | 2019-06-19 | 2019-09-06 | 长虹美菱股份有限公司 | A kind of adjustable wind cooling refrigerator of humidity and its adjusting method |
| CN210663535U (en) * | 2019-09-26 | 2020-06-02 | 长虹美菱股份有限公司 | Humidity adjusting chamber of dual-system refrigerator |
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