CN112747534A - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
- Publication number
- CN112747534A CN112747534A CN201911056779.8A CN201911056779A CN112747534A CN 112747534 A CN112747534 A CN 112747534A CN 201911056779 A CN201911056779 A CN 201911056779A CN 112747534 A CN112747534 A CN 112747534A
- Authority
- CN
- China
- Prior art keywords
- refrigerator
- storage device
- electrolysis
- oxygen
- evaporator
- 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.)
- Granted
Links
Images
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
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- 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
-
- 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
- F25D2317/0411—Treating air flowing to refrigeration compartments by purification by dehumidification
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The present invention provides a refrigerator, comprising: the refrigerator comprises a box body, a storage chamber, an evaporator cavity and an air supply duct, wherein the evaporator cavity and the air supply duct are formed in the box body and are positioned on the rear side of the storage chamber; a supply fan configured to cause airflow to be formed that circulates between the evaporator cavity, the supply air duct, and the evaporator cavity; the storage device is arranged in a storage room of the refrigerator, and the air return opening is arranged at the rear side of the storage device; the storing device includes: the oxygen removing assembly is obliquely arranged at the back of the storage device and is configured to consume oxygen inside the storage device through an electrolytic reaction and electrolyze water vapor outside the storage device; the electrolysis fan is configured to make the formation after the refrigerator gets into the defrosting mode and leads to the air current in return air inlet behind the inside one side of deoxidization subassembly back towards the storing device to supply the required vapor of electrolysis to the deoxidization subassembly, thereby can provide sufficient vapor as the reactant for the deoxidization subassembly, be favorable to improving electrolysis deoxidization efficiency.
Description
Technical Field
The invention relates to the field of refrigeration control, in particular to a refrigerator.
Background
The modified atmosphere preservation technology is a technology for prolonging the storage life of food by adjusting environmental gas. In the refrigerator field, through setting up the deoxidization subassembly, utilize its electrochemical reaction to consume inside oxygen and build the hypoxemia atmosphere, can improve fresh-keeping effect. The electrochemical reaction of the oxygen removal assembly consists of two half-reactions, which are carried out on a cathode plate and an anode plate, respectively, the reactant of the cathode plate comprises oxygen, and the reactant of the anode plate comprises water. The electrochemical reaction needs to be supplemented with reactants continuously, and if the anode plate cannot be supplemented with enough moisture in the oxygen removing process, the electrochemical reaction rate is low, so that the efficiency of electrolytic oxygen removal is not high.
In the prior art, a water source or a water delivery device is independently arranged for the deoxidizing component, and the structure is complex.
Disclosure of Invention
An object of the present invention is to provide a refrigerator which solves at least one of the above-mentioned technical problems.
It is a further object of the present invention to increase the oxygen scavenging efficiency of the oxygen scavenging assembly.
A further object of the present invention is to improve defrosting efficiency of a refrigerator.
It is another further object of the present invention to reduce the amount of frost formation in the evaporator of a refrigerator.
In particular, according to an aspect of the present invention, there is provided a refrigerator including: the refrigerator comprises a box body, a storage chamber, an evaporator cavity and an air supply duct, wherein the evaporator cavity and the air supply duct are formed in the box body and are positioned on the rear side of the storage chamber and used for placing an evaporator; the air supply fan is arranged in the air supply duct and is configured to promote the formation of air flow circulating among the evaporator cavity, the air supply duct and the evaporator cavity; the storage device is arranged in a storage room of the refrigerator, and the air return opening is arranged at the rear side of the storage device; the storing device includes: an oxygen removal assembly obliquely disposed at a back of the storage device, configured to consume oxygen inside the storage device through an electrolysis reaction and simultaneously electrolyze water vapor outside the storage device; and the electrolysis fan is configured to promote the formation of airflow which flows through the surface of the oxygen removing assembly back to the inside of the storage device and then leads to the air return opening after the refrigerator enters a defrosting mode so as to supplement water vapor required by electrolysis to the oxygen removing assembly.
Optionally, a return air interval is formed between the storage device and the bottom wall of the storage chamber, and the electrolytic fan is arranged between the return air interval and the return air inlet.
Optionally, the refrigerator further comprises a defrosting sensor configured to detect a temperature of an evaporator of the refrigerator; the refrigerator is configured to activate a defrost mode when the evaporator temperature is less than a first preset threshold.
Optionally, the oxygen removal assembly is configured to initiate electrolysis synchronously after the refrigerator initiates defrost mode.
Optionally, after the refrigerator starts a defrosting mode, the air supply fan operates at a first rotating speed, and the first rotating speed is the operating rotating speed of the air supply fan for promoting airflow in the storage compartment to flow to the evaporator cavity in the defrosting mode; the refrigerator is configured to exit the defrosting mode when the evaporator temperature is greater than or equal to a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value; after the refrigerator exits the defrosting mode and delays the set time interval, the refrigerator is configured to start the operation of the refrigerating system, the air supply fan is configured to operate at a second rotating speed when the refrigerating system starts to operate, the second rotating speed is the operating rotating speed of the air supply fan for forming cold circulation in the refrigerating mode, and the second rotating speed is greater than the first rotating speed.
Optionally, after the refrigerator exits the defrosting mode, the oxygen removing assembly is configured to continue electrolysis according to a set operation time to continuously reduce water vapor outside the storage device, and the electrolysis is stopped after the set operation time is over, and the electrolysis fan is configured to stop operation after the oxygen removing assembly stops electrolysis.
Optionally, the storage device further comprises an oxygen concentration sensor configured to detect the oxygen content in the storage device after the refrigerator enters the cooling mode; the refrigerator is configured to initiate an oxygen scavenging mode when the oxygen content is greater than or equal to a preset oxygen concentration threshold.
Optionally, after the refrigerator starts the oxygen removing mode, the oxygen removing assembly starts electrolysis synchronously, and the electrolysis fan starts to operate and is configured to promote the formation of airflow which flows through the side of the oxygen removing assembly back to the inside of the storage device and then leads to the air return opening so as to supplement water vapor required by electrolysis to the oxygen removing assembly.
Optionally, the storage device further comprises: and the moisture permeable assembly is integrated at the top of the storage device and is configured to allow water vapor in the storage device to seep out.
Optionally, the storage device further comprises a drawer, wherein a storage space is formed inside the drawer; the drawer includes: a barrel configured to have a forward opening; and a drawer body which is arranged in the cylinder body in a drawing way.
According to the refrigerator, the air return opening is arranged on the rear side of the storage device, the deoxidizing component is obliquely arranged on the back of the storage device, the deoxidizing component can be close to the air return opening, the deoxidizing component is configured to consume oxygen inside the storage device through an electrolytic reaction and electrolyze water vapor outside the storage device, and the electrolytic fan is configured to promote airflow which flows through one surface of the deoxidizing component back to the inside of the storage device and then leads to the air return opening after the refrigerator enters a defrosting mode so as to supplement the water vapor required by electrolysis to the deoxidizing component. Because near the return air inlet be cold and hot air current intersection, the humidity under the defrosting mode is bigger, and the electrolysis fan makes the return air current blow to the deoxidization subassembly one side inside back towards the storing device, can provide enough vapor as the reactant of electrolytic reaction to the deoxidization subassembly, consequently need not to set up water source or water delivery device alone for the electrolysis deoxidization subassembly and can make the deoxidization subassembly obtain better deoxidization efficiency.
Furthermore, a return air interval is formed between the storage device of the refrigerator and the bottom wall of the storage chamber, the electrolytic fan is arranged between the return air interval and the return air inlet, the electrolytic fan is used for changing the air path of return air flow, after the refrigerator enters a defrosting mode, air flow which flows through one surface of the deoxidizing assembly back to the storage device and then leads to the return air inlet is promoted to be formed, so that water vapor required by electrolysis is supplemented to the deoxidizing assembly, the water vapor content in the return air flow can be reduced in the defrosting mode, and the defrosting efficiency is improved.
Furthermore, in the refrigerator, in the refrigeration mode, when the oxygen content in the storage device is greater than or equal to the preset oxygen content threshold, the deoxygenation mode is started, the deoxygenation assembly synchronously starts electrolysis, under the action of electrolysis voltage, one surface of the deoxygenation assembly facing the inside of the storage device is configured to consume the oxygen in the storage device to achieve the purpose of deoxygenation, one surface of the deoxygenation assembly facing away from the inside of the storage device is configured to electrolyze water vapor outside the storage device to achieve the purpose of water removal, the electrolysis fan prompts the return air flow to blow to the surface of the deoxygenation assembly facing away from the inside of the storage device by changing a gas circuit, the water vapor in the return air flow can provide reactants for the deoxygenation assembly, the deoxygenation assembly also reduces the water vapor content in the return air flow while deoxygenating, and the frost formation amount of the evaporator is reduced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic block diagram of a refrigerator according to one embodiment of the present invention;
FIG. 2 is a schematic view of the refrigerator shown in FIG. 1;
FIG. 3 is a schematic view of a compartment in the refrigerator shown in FIG. 1 where a storage device is located;
FIG. 4 is a schematic view of the airflow direction in the compartment of the refrigerator shown in FIG. 3, with the direction of the arrows showing the airflow direction;
FIG. 5 is a schematic view of a storage device in the refrigerator shown in FIG. 2;
FIG. 6 is a schematic exploded view of a storage device in the refrigerator shown in FIG. 5;
FIG. 7 is a schematic exploded view of an oxygen scavenging assembly of the storage device of the refrigerator shown in FIG. 6;
fig. 8 is a control flowchart of a defrosting mode of the refrigerator shown in fig. 1;
fig. 9 is a control flowchart of the oxygen removal mode of the refrigerator shown in fig. 1.
Detailed Description
Fig. 1 is a schematic block diagram of a refrigerator 10 according to an embodiment of the present invention, fig. 2 is a schematic diagram of the refrigerator 10 shown in fig. 1, fig. 3 is a schematic diagram of a compartment in which a storage device 200 is located in the refrigerator 10 shown in fig. 1, fig. 4 is a schematic diagram of an airflow direction of the compartment in which the storage device 200 is located in the refrigerator 10 shown in fig. 3, and an arrow direction shows the airflow direction. The refrigerator 10 may generally include a cabinet 100, an air supply fan 143, a storage device 200, an electrolytic fan 600, and a defrosting sensor 101.
The cabinet 100 has a storage compartment, an evaporator cavity (not shown) for accommodating the evaporator 160 and an air supply duct 140 formed therein at a rear side of the storage compartment, the air supply duct 140 is communicated with the storage compartment through an air supply outlet 150, and the evaporator cavity is communicated with the storage compartment through an air return outlet 170.
In this embodiment, the refrigerator 10 may be an air-cooled refrigerator 10, and the air-cooled refrigerator 10 cools the storage compartment by using air flow circulation. The air after heat exchange with the evaporator 160 enters the storage compartment through the top of the evaporator cavity, the air supply duct 140 and the air supply outlet 150, and the return air enters the bottom of the evaporator cavity through the bottom of the storage compartment and the air return inlet 170 to form air flowing circulation.
And an air supply fan 143 disposed in the air supply duct and positioned at the top of the evaporator chamber, and configured to promote the formation of air flow circulating among the evaporator chamber, the air supply duct, and the evaporator chamber.
Fig. 5 is a schematic view of the storage device 200 in the refrigerator 10 shown in fig. 2. A storage device 200 disposed in the storage compartment of the refrigerator 10, preferably, at the bottom of the storage compartment, and having a storage space 213 formed therein, and an air return opening 170 disposed at the rear side of the storage device 200; in this embodiment, the storage compartments may be one and the refrigerating compartment 110; in other alternative embodiments, the storage compartment may be multiple, including the refrigerating compartment 110 and the freezing compartment 120 located below the refrigerating compartment 110. The storage device 200 is disposed at the bottom of the refrigerating compartment 110, and a return air interval is formed between the bottom of the storage device 200 and the bottom wall of the refrigerating compartment 110, allowing return air to be blown toward the return air inlet 170 through the return air interval. The storage device 200 includes a storage container 210 (the storage container 210 is a drawer) having a storage space 213 formed therein, an oxygen removing module 300, a moisture permeable module 400, and a cover 500 provided on the storage container 210, and further includes an oxygen concentration sensor 270 provided in the storage container 210.
Fig. 6 is a schematic exploded view of the storage device 200 in the refrigerator 10 shown in fig. 5. The storage container 210 is a drawer, and the drawer is composed of a cylinder 211 and a drawer body 212. The drawer is drawably disposed at the bottom of the refrigeration compartment 110 of the refrigerator 10. A cylinder 211 provided with a forward opening; the drawer body 212 is drawably disposed in the cylinder 211.
The rear surface of the storage container 210 has a mounting frame 230 protruding backward, and the mounting frame 230 is configured to protrude gradually along the upward extending direction, so as to form an inclined angle with the rear surface of the storage container 210, that is, the surface of the mounting frame 230 facing away from the storage space 213 is configured to be inclined downward. The top surface of the storage container 210 is provided with a ventilation area, and the ventilation area is provided with through holes arranged in an array.
The oxygen removing assembly 300 is obliquely disposed at the back of the storage device 200, i.e., is attached to the mounting frame 230 disposed at the back of the storage container 210, and the surface facing the inside of the storage device 200 of the oxygen removing assembly is configured to consume oxygen inside the storage device 200 through an electrolytic reaction, and the surface facing away from the inside of the storage device 200 is simultaneously electrolyzed from water vapor outside the storage device 200. Since the side of the mounting frame 230 facing away from the interior of the storage device 200 is disposed to be inclined downward, the side of the oxygen removing assembly 300 facing away from the interior of the storage device 200 is also disposed to be inclined downward and close to the return air inlet 170. In the electrolysis process, the surface of the oxygen removing component 300 facing the inside of the storage device 200 consumes oxygen in the storage device 200 on the one hand and generates water vapor on the other hand, so that the humidity in the storage device 200 can be increased, and the fresh-keeping effect of the storage device 200 is improved.
FIG. 7 is a schematic exploded view of the oxygen scavenging assembly 300 of the storage device 200 in the refrigerator 10 shown in FIG. 6. The oxygen scavenging assembly 300 includes: an inner frame 310, an outer frame 350, an anode plate 340, a cathode plate 320, and a proton exchange membrane 330 sandwiched between the cathode plate 320 and the anode plate 340. The inner frame 310 and the outer frame 350 are respectively disposed at the inner and outer sides of the oxygen removing assembly 300, and are used for mounting and fixing the oxygen removing assembly 300. The surface of the cathode plate 320 opposite to the proton exchange membrane 330 is exposed inside the storage device 200 and configured to generate water by the reaction of hydrogen ions and oxygen; the surface of the anode plate 340 opposite to the proton exchange membrane 330 is exposed outside the storage device 200 and configured to electrolyze water vapor outside the storage device 200 to generate hydrogen ions and oxygen; and a proton exchange membrane 330 configured to transport hydrogen ions from the anode plate 340 side to the cathode plate 320 side. That is, the oxygen removing assembly 300 has at least 5 layers of structure, which is, in order from the outside to the inside, an outer frame 350, an anode plate 340, a proton exchange membrane 330, a cathode plate 320, and an inner frame 310.
The moisture permeable assembly 400 is integrated on the top surface of the storage device 200, configured to allow water vapor within the storage device 200 to seep out, and includes a tray and a moisture permeable membrane module 420.
And a support plate covering the air permeable region to form a skeleton of the moisture permeable assembly 400. The part of the supporting plate facing the upper part of the ventilation area is provided with an accommodating cavity. The bottom wall of the accommodating cavity is correspondingly provided with through holes arranged in an array, and the through holes are configured to allow water vapor permeated and exhausted through the moisture permeable membrane group 420 to be exhausted from the through holes.
The moisture permeable membrane group 420 is arranged between the breathable area and the supporting plate and located in the accommodating cavity of the supporting plate, and is configured to allow water vapor in the storage space 213 to permeate and discharge slowly, so that the humidity in the storage device 200 is always kept in a proper range, excessive moisture in the space is prevented from generating condensation or dripping water, other gases can be prevented from permeating, gas exchange inside and outside the storage space 213 is prevented, and the storage space 213 is kept in a proper fresh-keeping atmosphere.
And the electrolytic fan 600 is arranged between the return air interval and the return air inlet 170 and is configured to promote airflow which flows through the side, back to the inside of the storage device 200, of the oxygen removal assembly 300 and then leads to the return air inlet 170 after the refrigerator 10 enters a defrosting mode so as to supplement water vapor required by electrolysis to the oxygen removal assembly 300. In this embodiment, the electrolytic fan 600 may be a micro axial flow fan for changing the direction of the air path, so that the air flow passing through the return air interval is firstly blown to the side of the oxygen removing assembly 300 opposite to the inside of the storage device 200, and the water vapor in the air flow provides the reactant for the oxygen removing assembly 300. The included angle between the direction of the airflow blown by the electrolytic fan 600 to the surface of the oxygen removing assembly 300 back facing the inside of the storage device 200 and the direction of the plane where the oxygen removing assembly 300 is located can be set as required, and for example, can be any angle between 8 ° and 90 °. Air flow that reaches the side of the oxygen scavenging assembly 300 facing away from the interior of the storage device 200 will enter the air return opening 170 and enter the bottom of the evaporator cavity via the air return opening 170.
Because near the return air inlet 170 be cold and hot air current intersection, humidity ratio is great under the defrosting mode, and electrolysis fan 600 makes the return air current blow to deoxidization subassembly 300 one side inside towards storage device 200 dorsad, can provide sufficient vapor to deoxidization subassembly 300, consequently need not to set up water source or water delivery device alone for electrolysis deoxidization subassembly 300 and can make deoxidization subassembly 300 obtain better deoxidization efficiency.
The cover plate 500 forms an upper cover of the storage device 200 and covers the upper side of the moisture permeable assembly 400 to make the appearance neat.
And a defrosting sensor provided on the evaporator 160 and configured to detect a temperature of the evaporator 160 every predetermined time. Whether the defrosting mode needs to be started to defrost the evaporator 160 can be judged according to the temperature of the evaporator 160.
An oxygen concentration sensor 270 disposed inside the storage device 200 and configured to detect the oxygen content in the storage device 200 at predetermined intervals after the refrigerator 10 enters the cooling mode, preferably, the oxygen concentration sensor 270 may be disposed inside the storage container 210, and the oxygen content in the storage device 200 means the oxygen content in the storage container 210. Whether the oxygen removal mode needs to be started to remove oxygen from the storage device 200 can be judged according to the oxygen content, so that the preservation effect is improved.
In the cooling mode, the refrigerator 10 is configured to be switched to the defrosting mode or the oxygen removing mode according to actual use requirements.
In the cooling mode, the cooling system of the refrigerator 10 is started to operate, the evaporator 160 transfers cooling energy to airflow flowing through the evaporator, the airflow after heat exchange flows out from the top of the evaporator cavity, the air supply fan 143 operates at the second rotating speed, the airflow enters the storage compartment through the air supply duct 140 and the air supply outlet 150 under the action of the air supply fan 143, and the airflow in the storage compartment enters the bottom of the evaporator cavity through the air return interval and the air return inlet 170.
In the defrosting mode, the refrigeration system of the refrigerator 10 stops operating, the evaporator 160 does not produce cold, and the air supply fan 143 operates at the first rotation speed at this time, in this embodiment, the first rotation speed of the air supply fan 143 is less than the second rotation speed, that is, the air supply fan 143 operates at a lower rotation speed, and the air flow with higher temperature in the storage compartment enters the bottom of the evaporator cavity through the return air interval and the return air inlet 170, so that the return air flow with higher temperature contacts the evaporator 160 with lower temperature, thereby achieving the purpose of defrosting the evaporator 160. Whether the defrosting mode needs to be started or not can be judged according to the temperature of the evaporator 160 so as to prevent frosting from influencing the heat exchange effect of the evaporator 160.
In the oxygen removal mode, the refrigeration system of the refrigerator 10 continues to operate, the air flow after heat exchange by the evaporator 160 flows out of the top of the evaporator chamber, and the air supply fan 143 operates at the first rotational speed. The oxygen removal assembly 300 initiates electrolysis and the electrolytic fan 600 begins operation. Electrolysis fan 600 makes the return air current blow to the inside one side of deoxidization subassembly 300 back towards storage device 200, for deoxidization subassembly 300 provides the required vapor of electrolysis, can improve the efficiency of electrolysis deoxidization.
In the cooling mode, the refrigerator 10 may be switched to the defrosting mode according to a use demand. For example, whether the defrosting mode needs to be entered may be determined according to the temperature of the evaporator 160. And judging whether the temperature of the evaporator 160 is less than a first preset threshold value, if so, starting the defrosting mode, and if not, not starting the defrosting mode. After the defrosting mode is started, the deoxidizing component 300 starts electrolysis synchronously, and the surface of the deoxidizing component, which faces back to the inside of the storage device 200, starts to electrolyze water vapor outside the storage device 200; the electrolysis fan 600 blows airflow through the return air interval to the side of the oxygen removal assembly 300, which faces away from the interior of the storage device 200, so as to supplement water vapor required by electrolysis to the oxygen removal assembly 300; the airflow that reaches the side of the oxygen scavenging assembly 300 facing away from the interior of the storage device 200 will pool to the bottom of the evaporator chamber.
Utilize electrolysis fan 600 to change return air flow path under the mode of defrosting, make the return air flow earlier through deoxidization subassembly 300 one side inside towards storage device 200 dorsad, then collect to evaporimeter chamber bottom again, can reduce the vapor content in the return air flow, avoid collecting to the return air flow of evaporimeter chamber bottom too much vapor and meet the frosting once more behind the evaporimeter 160 that the temperature is lower, can improve the efficiency of defrosting.
Whether the defrosting mode needs to be exited or not can also be judged according to the temperature of the evaporator 160, so as to prompt the refrigerator 10 to adjust the operation mode. For example, it is determined whether the temperature of the evaporator 160 is greater than or equal to a second preset threshold, where the second preset threshold is greater than the first preset threshold, if so, the defrosting mode is exited, and if not, the evaporator 160 continues to be defrosted according to the defrosting mode. After the refrigerator 10 exits the defrosting mode and delays the set time interval, the refrigeration system of the refrigerator 10 is allowed to start to operate, and the air supply fan 143 is allowed to operate at the second rotation speed. The oxygen scavenging assembly 300 is configured to continue electrolysis for a set operating time to continuously reduce water vapor outside the storage device 200 and to stop electrolysis after the set operating time has expired, and the electrolysis fan 600 is configured to stop operation after the oxygen scavenging assembly 300 has stopped electrolysis. The activation or deactivation of the defrost mode is determined by the temperature level of the evaporator 160, and the oxygen removing assembly 300 is configured to synchronously activate electrolysis after the defrost mode is activated, and the electrolysis operation is performed according to a set operation time, which in this embodiment is set to any time between 0.5h and 1.5h, for example, 1h, as required.
The oxygen removal mode is controlled to be turned on or off according to the amount of oxygen contained in the storage device 200 in a state where the cooling mode is turned on. For example, in the cooling mode, it is determined whether the oxygen concentration in the storage device 200 is greater than a preset oxygen concentration threshold, if so, the oxygen removal mode is activated, and if not, the oxygen removal mode is not activated. After the deoxygenation mode is started, the deoxygenation assembly 300 synchronously starts electrolysis, the refrigeration system continues to operate, oxygen in the storage device 200 is consumed through an electrolysis reaction under the action of an electrolysis voltage by the surface facing the inside of the storage device 200 of the deoxygenation assembly 300, and water vapor outside the storage device 200 is electrolyzed under the action of the electrolysis voltage by the surface facing away from the inside of the storage device 200. The electrolytic fan 600 is activated and configured to promote the formation of a gas stream that flows through the side of the oxygen removal assembly 300 facing away from the interior of the storage device 200 and then to the air return 170, so as to supplement the oxygen removal assembly 300 with water vapor required for electrolysis, provide sufficient reactant for the oxygen removal assembly 300, and improve the oxygen reduction efficiency.
The oxygen scavenging assembly 300 reduces the oxygen content of the storage device 200 while also consuming water vapor from the return air stream flowing to the return air inlet 170, reducing the water vapor content of the return air stream, reducing the frost formation of the evaporator 160, and allowing the refrigerator 10 to maintain a good refrigeration efficiency.
The oxygen removing assembly 300 starts electrolysis synchronously after the oxygen removing mode is started, and the electrolysis operation is performed according to the set oxygen removing time after the start, and in the embodiment, the set oxygen removing time is set to any time between 0.5h and 3h, such as 1h, 1.5h and 2h, according to the requirement. After the electrolysis is continuously finished according to the set oxygen removal time, the oxygen removal mode is exited, the oxygen removal assembly 300 stops the electrolysis, and the electrolysis fan 600 stops running.
Fig. 8 is a control flowchart of a defrosting mode of the refrigerator 10 shown in fig. 1. The control method of the defrosting mode of the refrigerator 10 includes:
step S802, acquiring the temperature of the evaporator 160 detected by the defrosting sensor;
step S804, determining whether the temperature of the evaporator 160 is less than a first preset threshold, if so, performing step S806, starting the defrosting mode, otherwise, not starting the defrosting mode, and acquiring the temperature of the evaporator 160 again after every predetermined time.
And step S806, starting a defrosting mode. Accordingly, the refrigeration system of the refrigerator 10 stops operating and the evaporator 160 no longer generates cooling energy.
Step S808, the air supply fan 143 is operated at the first rotation speed, the oxygen removal module 300 performs an electrolytic reaction, and the electrolytic fan 600 is operated. The blower 143 causes the air flow to circulate among the evaporator chamber, the storage compartment, and the evaporator chamber to continuously deliver the higher temperature air in the storage compartment to the evaporator chamber to take away the cold on the evaporator 160, thereby defrosting the evaporator 160. The electrolytic fan 600 makes the circulating air flow pass through the deoxidizing component 300, so that the water vapor in the return air flow is used for providing reactants for the deoxidizing component 300, the defrosting efficiency can be improved, and the deoxidizing efficiency in the storage device can be improved.
In step S810, the temperature of the evaporator 160 detected by the defrosting sensor is acquired.
Step S812, determining whether the temperature of the evaporator 160 is greater than or equal to a second preset threshold, if so, executing step S814, exiting the defrosting mode, if not, continuing defrosting, and acquiring the temperature of the evaporator 160 again after every predetermined time.
And step S814, exiting the defrosting mode and delaying the set time interval.
In step S816, the refrigeration system is started to operate, and the air supply fan 143 operates at the second rotation speed. The evaporator 160 begins to produce cold, which exchanges heat with the airflow passing through it. The air supply fan 143 promotes the air flow after heat exchange to form circulation among the evaporator cavity, the air supply duct 140 and the evaporator cavity so as to refrigerate the storage compartment.
In step S818, the oxygen removing assembly 300 stops operating after the electrolysis is completed within the set operation time, and the electrolysis fan 600 stops operating.
Fig. 9 is a control flowchart of the oxygen removal mode of the refrigerator 10 shown in fig. 1. The method of controlling the oxygen removal mode of the refrigerator 10 includes:
in step S902, the oxygen concentration detected by the oxygen concentration sensor is acquired.
Step S904, determining whether the oxygen concentration in the storage device 200 is greater than a preset oxygen concentration threshold, if so, executing step S906, starting the oxygen removal mode, and if not, acquiring the oxygen concentration again after every preset time.
Step S906, the oxygen removal mode is started, the oxygen removal assembly 300 performs electrolysis, and the electrolytic fan 600 operates.
In step S908, the oxygen removing assembly 300 stops operating after the electrolysis is completed within the set oxygen removing time, and the electrolysis fan 600 stops operating.
In the refrigerator 10 of the present embodiment, the air return opening 170 is disposed at the rear side of the storage device 200, the oxygen removing assembly 300 is disposed at the back of the storage device 200 in an inclined manner, that is, the oxygen removing assembly 300 is close to the air return opening 170 and configured to consume oxygen inside the storage device 200 through an electrolysis reaction and simultaneously electrolyze water vapor outside the storage device 200, and the electrolysis fan 600 is configured to promote an airflow passing through a face of the oxygen removing assembly 300 back toward the inside of the storage device 200 and then leading to the air return opening 170 after the refrigerator 10 enters a defrosting mode, so as to supplement the water vapor required for electrolysis to the oxygen removing assembly 300. Because near the return air inlet 170 be cold and hot air current intersection, humidity ratio is great under the defrosting mode, and electrolysis fan 600 makes the return air current blow to deoxidization subassembly 300 one side inside towards storage device 200 dorsad, can provide sufficient vapor to deoxidization subassembly 300, consequently need not to set up water source or water delivery device alone for electrolysis deoxidization subassembly 300 and can make deoxidization subassembly 300 obtain better deoxidization efficiency.
In the refrigerator 10 of this embodiment, the electrolytic fan 600 is disposed between the return air space and the return air inlet 170, and the electrolytic fan 600 is used to change the path of the return air flow in the defrosting mode, so that the return air flow firstly passes through the deoxidizing component 300 and faces away from the storage device 200, and then is collected to the return air inlet 170 to supplement the water vapor required by electrolysis to the deoxidizing component 300, thereby reducing the water vapor content in the return air flow and improving the defrosting efficiency. In the cooling mode, when the oxygen content in the storage device 200 is greater than or equal to the preset oxygen content threshold, the deoxidizing mode is started, the deoxidizing component 300 synchronously starts electrolysis, and the deoxidizing component 300 consumes the water vapor in the return air flow flowing to the return air inlet 170 while reducing the oxygen content in the storage device 200, so that the water vapor content in the return air flow is reduced, the frosting amount of the evaporator 160 is reduced, and the refrigerator 10 can keep better cooling efficiency.
It should be understood by those skilled in the art that, unless otherwise specified, terms used for indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", "front", "rear", and the like in the embodiments of the present invention are based on the actual use state of the refrigerator, and these terms are only used for convenience of describing and understanding the technical solution of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation, and thus, should not be construed as limiting the present invention.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A refrigerator, comprising:
the refrigerator comprises a box body, a storage compartment, an evaporator cavity and an air supply duct, wherein the evaporator cavity and the air supply duct are formed in the box body and are positioned on the rear side of the storage compartment and used for placing an evaporator;
an air supply fan disposed in the air supply duct and configured to urge an air flow circulating among the evaporator cavity, the air supply duct, and the evaporator cavity;
the storage device is arranged in a storage room of the refrigerator, and the air return opening is arranged at the rear side of the storage device; the storage device includes:
an oxygen removal assembly obliquely disposed at a back of the storage device, configured to consume oxygen inside the storage device through an electrolysis reaction and simultaneously electrolyze water vapor outside the storage device; and the electrolytic fan is configured to promote airflow which flows through the surface of the oxygen removing assembly back to the inside of the storage device and then leads to the air return opening after the refrigerator enters a defrosting mode so as to supplement water vapor required by electrolysis to the oxygen removing assembly.
2. The refrigerator according to claim 1,
and a return air interval is formed between the storage device and the bottom wall of the storage chamber, and the electrolytic fan is arranged between the return air interval and the return air inlet.
3. The refrigerator according to claim 1,
the refrigerator further includes a defrosting sensor configured to detect a temperature of an evaporator of the refrigerator; the refrigerator is configured to activate the defrost mode when the evaporator temperature is less than a first preset threshold.
4. The refrigerator according to claim 3,
the oxygen scavenging assembly is configured to initiate electrolysis synchronously after the refrigerator initiates the defrost mode.
5. The refrigerator according to claim 3,
after the refrigerator starts the defrosting mode, the air supply fan runs at a first rotating speed, and the first rotating speed is the running rotating speed of the air supply fan for promoting airflow in the storage compartment to flow to the evaporator cavity in the defrosting mode;
the refrigerator is configured to exit the defrost mode when the evaporator temperature is greater than or equal to a second preset threshold, the second preset threshold being greater than the first preset threshold; after the refrigerator exits the defrosting mode and delays for a set time interval, the refrigerator is configured to start to operate the refrigeration system, the air supply fan is configured to operate at a second rotating speed when the refrigeration system starts to operate, the second rotating speed is the operating rotating speed of the air supply fan for forming cold circulation in the refrigeration mode, and the second rotating speed is greater than the first rotating speed.
6. The refrigerator according to claim 5,
after the refrigerator exits the defrosting mode, the deoxidizing component is configured to continue electrolysis according to a set operation time so as to continuously reduce water vapor outside the storage device, and the electrolysis is stopped after the set operation time is finished, and the electrolysis fan is configured to stop operation after the deoxidizing component stops electrolysis.
7. The refrigerator according to claim 1,
the storage device further comprises an oxygen concentration sensor configured to detect the oxygen content in the storage device after the refrigerator enters a refrigeration mode; the refrigerator is configured to initiate an oxygen scavenging mode when the oxygen content is greater than or equal to a preset oxygen concentration threshold.
8. The refrigerator according to claim 7,
after the refrigerator starts the deoxidization mode, the deoxidization subassembly starts the electrolysis in step, the electrolysis fan starts the operation, configures into to the messenger and flows through the deoxidization subassembly is carried on the back towards the inside one side of storing device after accesss to the air current of return air inlet, with to the required vapor of deoxidization subassembly replenishment electrolysis.
9. The refrigerator of claim 1, wherein the storage device further comprises:
the moisture permeable assembly is arranged at the top of the storage device and is configured to allow water vapor in the storage device to seep out.
10. The refrigerator according to claim 1,
the storage device also comprises a drawer, and a storage space is formed in the drawer; the drawer includes:
a barrel configured to have a forward opening; and
the drawer body is arranged in the cylinder in a drawable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911056779.8A CN112747534B (en) | 2019-10-31 | 2019-10-31 | Refrigerator with a door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911056779.8A CN112747534B (en) | 2019-10-31 | 2019-10-31 | Refrigerator with a door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112747534A true CN112747534A (en) | 2021-05-04 |
| CN112747534B CN112747534B (en) | 2023-03-17 |
Family
ID=75644937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911056779.8A Active CN112747534B (en) | 2019-10-31 | 2019-10-31 | Refrigerator with a door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112747534B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274168A1 (en) * | 2021-06-30 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigerator |
| WO2023098388A1 (en) * | 2021-12-03 | 2023-06-08 | 青岛海尔电冰箱有限公司 | Electrolytic deoxygenation system and control method therefor, and refrigerator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679660A (en) * | 2011-03-17 | 2012-09-19 | 株式会社东芝 | Refrigerator |
| CN107289722A (en) * | 2017-06-12 | 2017-10-24 | 青岛海尔股份有限公司 | A kind of depository dish and the refrigerator with it |
| CN206739725U (en) * | 2017-05-11 | 2017-12-12 | Tcl家用电器（合肥）有限公司 | Wind cooling refrigerator |
| CN108168181A (en) * | 2017-12-22 | 2018-06-15 | 青岛海尔股份有限公司 | Refrigerator |
| CN108278823A (en) * | 2017-12-22 | 2018-07-13 | 青岛海尔股份有限公司 | Refrigerator |
| CN109855378A (en) * | 2017-11-30 | 2019-06-07 | 青岛海尔股份有限公司 | Refrigerating device and its container for storing |
| CN109855377A (en) * | 2017-11-30 | 2019-06-07 | 青岛海尔股份有限公司 | Refrigerating device and its container for storing |
-
2019
- 2019-10-31 CN CN201911056779.8A patent/CN112747534B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679660A (en) * | 2011-03-17 | 2012-09-19 | 株式会社东芝 | Refrigerator |
| CN206739725U (en) * | 2017-05-11 | 2017-12-12 | Tcl家用电器（合肥）有限公司 | Wind cooling refrigerator |
| CN107289722A (en) * | 2017-06-12 | 2017-10-24 | 青岛海尔股份有限公司 | A kind of depository dish and the refrigerator with it |
| CN109855378A (en) * | 2017-11-30 | 2019-06-07 | 青岛海尔股份有限公司 | Refrigerating device and its container for storing |
| CN109855377A (en) * | 2017-11-30 | 2019-06-07 | 青岛海尔股份有限公司 | Refrigerating device and its container for storing |
| CN108168181A (en) * | 2017-12-22 | 2018-06-15 | 青岛海尔股份有限公司 | Refrigerator |
| CN108278823A (en) * | 2017-12-22 | 2018-07-13 | 青岛海尔股份有限公司 | Refrigerator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274168A1 (en) * | 2021-06-30 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigerator |
| WO2023098388A1 (en) * | 2021-12-03 | 2023-06-08 | 青岛海尔电冰箱有限公司 | Electrolytic deoxygenation system and control method therefor, and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112747534B (en) | 2023-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101572716B1 (en) | Refrigerator and device for reducing oxygen | |
| KR101505721B1 (en) | Refrigerator | |
| CN112747534B (en) | Refrigerator with a door | |
| CN112747525A (en) | Refrigerator with a door | |
| CN112747550B (en) | Storage device for refrigerator and refrigerator with storage device | |
| WO2021083433A1 (en) | Refrigerator | |
| CN112747526A (en) | Refrigerator with a door | |
| CN112747531A (en) | Refrigerator with a door | |
| JP2016080241A (en) | Oxygen reducing device and storage container | |
| JP2014020722A (en) | Refrigerator | |
| WO2017043433A1 (en) | Hydrogen water refrigerator | |
| CN111059829B (en) | Refrigerator with a door | |
| JP6125174B2 (en) | Hypoxic system | |
| JP6226708B2 (en) | Oxygen reduction device and refrigerator | |
| CN112747529A (en) | Refrigerator with a door | |
| CN112747528A (en) | Refrigerator with a door | |
| CN112747524A (en) | Refrigerator with a door | |
| JP6013046B2 (en) | refrigerator | |
| CN112747530B (en) | Refrigerator with a door | |
| JP2014037958A (en) | Oxygen reduction device | |
| CN112747537A (en) | Refrigerator with a door | |
| JP6712301B2 (en) | Storage | |
| CN112747536B (en) | Refrigerator | |
| CN211823361U (en) | Refrigerator with a door | |
| JP6419439B2 (en) | Storage |
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 |