CN110513936B - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
- Publication number
- CN110513936B CN110513936B CN201810496397.6A CN201810496397A CN110513936B CN 110513936 B CN110513936 B CN 110513936B CN 201810496397 A CN201810496397 A CN 201810496397A CN 110513936 B CN110513936 B CN 110513936B
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- Prior art keywords
- moisture permeable
- fixing plate
- air
- storage box
- space
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- 239000012528 membrane Substances 0.000 claims abstract description 22
- 238000005373 pervaporation Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000002209 hydrophobic effect Effects 0.000 claims description 13
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 5
- 229920006254 polymer film Polymers 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 3
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 3
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 235000013305 food Nutrition 0.000 description 4
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
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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
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
-
- 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
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—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 with forced air circulation
- F25D2317/066—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 with forced air circulation characterised by the air supply
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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
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, including: storing box and pass through wet subassembly. The air inlet of the air supply duct is arranged above the height of the upper surface of the storage box, and the vertical distance between the air inlet and the upper surface of the storage box is smaller than the preset distance. Moisture in the air in the moisture permeable space can be conveyed to the outside of the space through the pervaporation membrane through the vapor permeation component, so that the humidity in the moisture permeable space is always kept in a proper range, and condensation or water dripping in the space is prevented. The air inlet is slightly higher than the upper surface of the storage box, so that cold air of the air inlet sweeps over the upper surface of the moisture permeable component, moisture above the moisture permeable component can be taken away by the cold air, the humidity difference of two sides of the moisture permeable component is improved, and the moisture permeable speed is improved. In the refrigerator, the air inlet and the moisture permeable component are matched for use, so that the humidity of the air in the moisture permeable space can be controlled more conveniently.
Description
Technical Field
The invention relates to the field of refrigeration and freezing, in particular to a refrigerator.
Background
The air-cooled refrigerator is a refrigerator which utilizes cold air flow circulation to refrigerate a refrigerator chamber. In a common air-cooled refrigerator, the moisture of food can be taken away by cold air circulation, so that the food in a refrigerating chamber is easily dried in the air, and the fresh-keeping effect of the food is influenced.
In order to solve the above problems, the bottom of the refrigerating chamber of the conventional air-cooled refrigerator is provided with a storage drawer specially used for storing fruits and vegetables, and an approximately closed space is formed inside the storage drawer to keep the moisture of the fruits and vegetables. However, the moisture of fruits and vegetables is high, which tends to make the air inside the storage drawer humid. If the inside unnecessary moisture of storing drawer can't in time discharge, cause the inside vapor of drawer to pile up and form the condensation easily, still can produce when serious and drip, influence user's use and experience.
Disclosure of Invention
In view of the above, the present invention has been made to provide a refrigerator that overcomes or at least partially solves the above problems.
One purpose of the invention is to prevent the moisture in the moisture permeable space from forming condensation.
Another object of the present invention is to improve the moisture permeation effect of the moisture permeable component.
The present invention provides a refrigerator, including: the air supply device comprises a box body, a storage chamber and an air supply duct positioned at the rear part of the storage chamber are formed in the box body, and at least one air inlet communicated with the air supply duct is formed in the rear wall of the storage chamber; the storage box is arranged at the bottom of the storage chamber, a moisture permeable space is limited in the storage box, and an opening is formed in the upper surface of the storage box; the moisture permeable component is formed at the opening of the storage box and is configured to allow water vapor inside the moisture permeable space to permeate outside the moisture permeable space in a single direction; wherein the air inlet sets up in the top of storing box upper surface place height, and is less than the default distance with the vertical distance of storing box upper surface.
Optionally, the refrigerator further includes: each air door is arranged at the corresponding air inlet and is configured to controllably open or close the air inlet; and at least one fan arranged in the air supply duct and configured to convey the cold air in the air supply duct to the storage room.
Optionally, the refrigerator further includes: the first humidity sensor is arranged in the storage box and used for detecting the humidity value of the moisture permeable space; the air door is further configured to be opened when the humidity value of the moisture permeable space is detected to be larger than a first preset value; closing when the humidity value of the moisture permeable space is detected to be smaller than a second preset value; the first predetermined value is greater than the second predetermined value.
Optionally, the refrigerator further includes: the second humidity sensor is arranged in the storage chamber, is positioned above the storage box and is used for detecting the humidity value of the space above the storage box; the air door is further configured to be opened when the humidity value of the space above the storage box is detected to be larger than a third preset value; closing when the humidity value of the space above the storage box is detected to be smaller than a fourth preset value; the third predetermined value is greater than the fourth predetermined value.
Optionally, the moisture permeable assembly comprises: an upper fixing plate; a lower fixing plate; and a pervaporation membrane sandwiched between the upper and lower fixing plates.
Optionally, the pervaporation membrane comprises: the pervaporation membrane comprises a hydrophilic layer and a hydrophobic layer, wherein the hydrophilic layer and the hydrophobic layer are compounded to form a pervaporation membrane, one side, back to the hydrophobic layer, of the hydrophilic layer is exposed inside a moisture permeable space, and one side, back to the hydrophilic layer, of the hydrophobic layer is exposed outside the moisture permeable space.
Optionally, the hydrophilic layer is a polymeric membrane containing sulfonic acid functional groups; the hydrophobic layer is a non-woven fabric.
Optionally, the edge of the upper fixing plate is provided with a plurality of buckles, the edge of the lower fixing plate is provided with a plurality of bumps in a matching manner, and the upper fixing plate and the lower fixing plate are used for fixing and clamping the pervaporation membrane through clamping.
Optionally, the edge of the upper fixing plate is further provided with an outer edge for overlapping the edge of the opening.
Optionally, the upper fixing plate and the lower fixing plate are both provided with a plurality of air holes for water vapor diffusion.
The present invention provides a refrigerator, including: storing box and pass through wet subassembly. The moisture permeable component is arranged at the opening on the upper surface of the storage box. The air inlet of the refrigerator air supply duct is arranged above the height of the upper surface of the storage box, and the vertical distance between the air inlet and the upper surface of the storage box is smaller than the preset distance. Moisture in the air in the moisture permeable space can be conveyed to the outside of the space through the pervaporation membrane through the vapor permeation component, so that the humidity in the moisture permeable space is always kept in a proper range, and condensation or water dripping in the space is prevented. The air inlet is slightly higher than the upper surface of the storage box, so that cold air of the air inlet horizontally sweeps across the upper surface of the moisture permeable component, moisture above the moisture permeable component can be taken away by the cold air, the humidity difference of two sides of the moisture permeable component is improved, and the moisture permeable speed is improved. In the refrigerator, the air inlet and the moisture permeable component are matched for use, so that the humidity of the air in the moisture permeable space can be controlled more conveniently.
Further, the refrigerator of the present invention further comprises: a first humidity sensor. First humidity transducer sets up inside the storing box for detect and pass through the humidity value in wet space. The air door is configured to be opened when the humidity value of the moisture permeable space is detected to be larger than a first preset value; and closing when the humidity value of the moisture permeable space is detected to be smaller than a second preset value. The refrigerator of the present embodiment has a humidity sensor mounted therein. When the humidity in the moisture permeable space is detected to be higher, the air door is opened, the humidity in the space above the moisture permeable component is reduced, the humidity difference of the two sides of the moisture permeable component is improved, and therefore the moisture permeable rate of the moisture permeable component is improved. When the humidity in the moisture permeable space is lower, the air door is closed to reduce the moisture permeable rate of the moisture permeable assembly so as to prevent the moisture in the storage box from being excessively reduced. The air door of air intake is according to the above-mentioned humidity value switching that detects, can control more accurately and pass through the humidity range in wet space, has improved the moisturizing, the dehumidification effect of storing box.
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 structural view of the inside of a refrigerator according to one embodiment of the present invention;
fig. 2 is a front schematic view of the structure of the inside of a refrigerator according to one embodiment of the present invention;
fig. 3 is a side sectional view of the structure of the inside of the refrigerator according to one embodiment of the present invention;
fig. 4 is an exploded schematic view of a moisture permeable assembly of a refrigerator according to one embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 3, an embodiment of the present invention provides a refrigerator including: a case and a storage box 100 and a moisture permeable assembly 300. The refrigerator body is internally provided with a storage chamber of the refrigerator. The storage box 100 is disposed inside the storage compartment. In this embodiment, the refrigerator may be an air-cooled refrigerator, and the storage compartment of the air-cooled refrigerator includes: a refrigerated compartment and a freezer compartment. The storage box 100 may be a drawer, the drawer is composed of a drawer body 111 and a drawing part 112, the moisture permeable assembly 300 is disposed on the top surface of the drawer body 111, and in some other embodiments of the present invention, the moisture permeable assembly 300 may also be disposed on the rear side surface of the drawer body 111. The drawer is detachably arranged at the bottom of a refrigerating chamber of the refrigerator, a plurality of pairs of convex ribs 221 are arranged at two sides of the inner container 220 of the refrigerating chamber, wherein the pair of convex ribs 221 at the bottom of the refrigerating chamber are used for limiting the installation position of the drawer. The refrigerator also comprises an air supply duct arranged at the rear side of the storage compartment, and an evaporator of the refrigerator is arranged in the air supply duct. The refrigerating compartment and the supply air duct are separated by a duct cover 210, that is, the duct cover 210 forms a rear wall of the refrigerating compartment. The air duct cover plate 210 is provided with a plurality of air inlets 212 for conveying cold air in the air supply duct to the storage compartment.
A moisture permeable space is defined in the storage box 100, and an opening is provided on an upper surface of the storage box 100. The moisture permeable component 300 is formed at the opening of the storage box 100 and is configured to allow water vapor inside the moisture permeable space to permeate to the outside of the moisture permeable space in a single direction. The moisture permeable assembly 300 can maintain the humidity in the moisture permeable space within a suitable range. Specifically, when the humidity in the moisture permeable space is greater than the preset humidity value, the moisture permeable assembly 300 allows the water vapor in the moisture permeable space to permeate outward, and when the humidity in the moisture permeable space is less than the preset humidity value, the moisture permeable assembly 300 prevents the water vapor in the moisture permeable space from permeating outward. Therefore, the humidity in the moisture permeable space can be always kept above a preset humidity value and is always in a certain range, so that the air drying of food such as fruits and vegetables in the moisture permeable space can be prevented, and the condensation in the moisture permeable space can be prevented. In this embodiment, the predetermined humidity value is 80% of the relative humidity.
In this embodiment, the openings are rectangular and are disposed on the top surface of the storage box 100. The opening is used for installing the moisture permeable component 300, and the size of the moisture permeable component 300 is matched with that of the opening, so that the component can completely seal the corresponding opening, and gas exchange between the inside of the moisture permeable space and the outside is prevented.
As shown in fig. 4, the moisture permeable assembly 300 includes: an upper fixing plate 320, a lower fixing plate 330, and a pervaporation membrane 310 sandwiched between the upper fixing plate 320 and the lower fixing plate 330. In the present embodiment, the pervaporation membrane 310 is a composite membrane, and the composite membrane is a membrane having a multi-layer structure formed by combining various plastics and paper, metal or other materials through a lamination extrusion coating, a coextrusion process, or other process technologies. In this embodiment, the composite film is formed by combining a polymer film and a nonwoven fabric. The polymer film forms a hydrophilic layer of the pervaporation membrane 310 and the non-woven fabric forms a hydrophobic layer. The polymer film contains sulfonic acid functional groups that have hydrophilic properties, so that water is readily soluble in the hydrophilic layer and penetrates into the hydrophobic layer of the material before evaporation. The non-woven fabric has good water repellency and is not easy to adsorb water. In this embodiment, the side of the hydrophilic layer facing away from the hydrophobic layer is exposed to the inside of the moisture-permeable space, and the side of the hydrophobic layer facing away from the hydrophilic layer is exposed to the outside of the moisture-permeable space. Moisture inside the moisture permeable space can be discharged to the outside of the moisture permeable space by the pervaporation membrane 310. The pervaporation membrane 310 can block the permeation of other gases while permeating water vapor, and prevent the gas exchange between the inside and the outside of the moisture permeable space.
The upper fixing plate 320 and the lower fixing plate 330 are rectangular and have the same size. The edge of the upper fixing plate 320 is provided with a plurality of buckles 321, the edge of the lower fixing plate 330 is provided with a plurality of projections 331 in a matching manner, and the upper fixing plate 320 and the lower fixing plate 330 fixedly clamp the pervaporation membrane 310 through buckling. The peripheral edge of the upper fixing plate 320 also has an outwardly extending outer edge 322 for overlapping the edge of the opening where the moisture permeable module 300 is installed.
The upper fixing plate 320 and the lower fixing plate 330 are both provided with a plurality of air holes 301 for water vapor diffusion, the air holes 301 are radially arranged at the center of the fixing plate, and the aperture of the air hole 301 far away from the center of the fixing plate is larger than that of the air hole 301 near the center of the fixing plate. And the position of each air hole 301 of the upper fixing plate 320 and the lower fixing plate 330 corresponds to each other to facilitate the circulation of water vapor.
The storage box 100 of the present embodiment includes a moisture permeable assembly 300. Moisture in the air inside the moisture permeable space can be transported to the outside of the space through the pervaporation membrane by the moisture permeable assembly 300 through vaporization and permeation, so that the humidity inside the moisture permeable space is always kept in a proper range, and condensation or water dripping inside the space is prevented.
The air inlet 212 is disposed above the height of the upper surface of the storage box 100, and the vertical distance between the air inlet and the upper surface of the storage box 100 is less than a predetermined distance. The preset distance may be set according to the type of the refrigerator and the size of the storage box 100, and in the present embodiment, preferably, the preset distance may be set to 5 cm. In this embodiment, the air inlet 212 is slightly higher than the upper surface of the storage box 100, so that the cool air from the air inlet 212 sweeps across the upper surface of the moisture permeable component 300 horizontally, and the cool air can take away the moisture above the moisture permeable component 300, thereby improving the dehumidification effect. After moisture is taken away by cold air, the cold air enters the air supply duct again through an air return opening on the air duct cover plate 210, and forms dry and cold air again after heat exchange with the evaporator. In the embodiment, a boss 211 protruding toward the front side of the refrigerator is further formed at a position of the duct cover 210 close to the storage box 100, and the front side of the boss 211 abuts against the back plate of the storage box 100. The air inlets 212 are disposed on the front side surface of the boss 211, so that the air flow of the air inlets 212 directly flows to the upper surface of the moisture permeable assembly 300, and the number of the air inlets 212 is 2, and the air inlets 212 are disposed on the left and right sides of the front surface of the boss 211.
The refrigerator of the present embodiment further includes: at least one damper and at least one fan. Each damper is disposed at a corresponding intake vent 212 and configured to controllably open or close the intake vent 212. In this embodiment, a mechanical transmission device connected to the damper is disposed at the air inlet 212 for opening and closing the damper. The fan is arranged inside the air supply duct and is configured to convey cold air in the air supply duct to the storage room through the air inlet 212. The fan may be an axial flow fan.
In the present embodiment, since the moisture permeable space continuously permeates water vapor from the moisture permeable member 300, the humidity of the space above the moisture permeable member 300 is large. When the humidity of the space above the moisture permeable assembly 300 is too high, the difference between the humidity inside and outside the moisture permeable space becomes small, thereby causing the moisture permeable effect of the moisture permeable assembly 300 to be reduced. According to the test of the inventor, when the humidity difference between two sides of the moisture permeable component 300 is 30%, the moisture permeable speed is only half of that when the humidity difference between two sides is 60%. The fan and the air door can be controllably opened and closed according to the humidity values of the moisture permeable space and the space above the moisture permeable component 300, air supply is started when the humidity of the moisture permeable space or the space above the moisture permeable component 300 is higher, the humidity difference of the spaces at two sides of the moisture permeable component 300 is improved, and the moisture permeable effect of the moisture permeable component 300 is improved.
Specifically, the refrigerator of the present embodiment includes two humidity sensors. The first humidity sensor is arranged inside the storage box 100 and used for detecting a humidity value in the moisture permeable space. The first humidity sensor may be disposed on a sidewall inside the storage box 100. The second humidity sensor is disposed inside the storage compartment and above the storage box 100 for detecting a humidity value of a space above the storage box 100. The second humidity sensor can be arranged on the side wall of the refrigerator inner container.
The air door is also configured to open when the humidity value inside the storage box 100 is detected to be greater than a first preset value and close when the humidity value inside the storage box 100 is detected to be less than a second preset value. The first preset value and the second preset value can be set according to the volume inside the storage box 100. In this embodiment, the first predetermined value may be set to 95% of the relative humidity, and the second predetermined value may be set to 85% of the relative humidity. When the humidity in the storage box 100 is detected to be too high, the air door is opened. The air inlet 212 starts to supply air to reduce the humidity in the space above the moisture permeable assembly 300, so as to increase the difference between the humidity inside and outside the moisture permeable assembly 300, and to discharge more moisture in the storage box 100 into the storage compartment, so as to reduce the humidity in the storage box 100 as soon as possible. If the humidity in the storage box 100 is low, the air door is closed to reduce the moisture permeation speed of the moisture permeation assembly 300, so as to prevent the excessive loss of the moisture in the storage box 100.
The air door is also configured to open when the humidity value of the space above the storage box 100 is detected to be greater than a third preset value; and when the humidity value of the space above the storage box 100 is detected to be smaller than a fourth preset value, the closing is carried out. The third preset value and the fourth preset value can be set according to the size inside the storage chamber. The third predetermined value may be set to 60% rh and the fourth predetermined value may be set to 30% rh. In this embodiment, when the humidity in the space above the storage box 100 is detected to be too high, the air door is opened, and the air inlet 212 starts to supply air, so as to increase the humidity difference between the two sides of the moisture permeable assembly 300, and more moisture in the storage box 100 is discharged into the storage compartment.
In this embodiment, as long as any one of the above-mentioned opening conditions of the air door is satisfied (the humidity value inside the storage box 100 is greater than the first preset value or the humidity value in the space above the storage box 100 is greater than the third preset value), the air door is automatically opened. In this embodiment, the opening and closing of the damper is controlled by the dual condition determination, and the control accuracy can be further improved. In other embodiments of the present invention, only the first humidity sensor or only the second humidity sensor may be provided. The refrigerator only controls the opening and closing of the air door according to the humidity value in the moisture permeable space or the humidity value above the storage box 100, and the specific working principle is not described again here.
The refrigerator of this embodiment, its internally mounted has humidity transducer for detect the humidity value in the moisture permeable space. The air door of the air inlet 212 is opened and closed according to the detected humidity value, so that when the humidity in the moisture permeable space is higher, the humidity in the space above the moisture permeable component 300 is reduced, the humidity difference between the two sides of the moisture permeable component 300 is improved, and the moisture permeable rate of the moisture permeable component 300 is improved.
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 (5)
1. A refrigerator, comprising:
the air supply device comprises a box body, a storage chamber and an air supply duct positioned at the rear part of the storage chamber are formed in the box body, and at least one air inlet communicated with the air supply duct is formed in the rear wall of the storage chamber;
the storage box is arranged at the bottom of the storage chamber, a moisture permeable space is defined in the storage box, and an opening is formed in the central area of the upper surface of the storage box;
the moisture permeable component is formed at the opening of the storage box and is configured to allow water vapor inside the moisture permeable space to permeate outside the moisture permeable space in a single direction; wherein
The air inlet is arranged above the height of the upper surface of the storage box, and the vertical distance between the air inlet and the upper surface of the storage box is smaller than a preset distance;
the moisture permeable assembly comprises an upper fixing plate, a lower fixing plate and a pervaporation membrane clamped between the upper fixing plate and the lower fixing plate; the upper fixing plate and the lower fixing plate are both provided with a plurality of air holes for water vapor diffusion, the positions of the air holes of the upper fixing plate and the lower fixing plate correspond to each other so as to facilitate the circulation of water vapor, the air holes are radially distributed in the center of the upper fixing plate or the lower fixing plate, and the aperture of the air hole far away from the center of the upper fixing plate or the lower fixing plate is larger than that of the air hole close to the center of the upper fixing plate or the lower fixing plate; and is
The refrigerator also comprises at least one air door, at least one fan, a first humidity sensor and a second humidity sensor;
each air door is arranged at the corresponding air inlet and is configured to controllably open or close the air inlet, and the at least one fan is arranged in the air supply duct and is configured to convey cold air in the air supply duct into the storage compartment;
the first humidity sensor is arranged in the storage box and used for detecting the humidity value of the moisture permeable space; the damper is further configured to open when the humidity value of the moisture permeable space is detected to be greater than a first preset value; closing when the humidity value of the moisture permeable space is detected to be smaller than a second preset value; the first preset value is greater than the second preset value;
the second humidity sensor is arranged in the storage chamber, is positioned above the storage box and is used for detecting the humidity value of the space above the storage box; the air door is further configured to be opened when the humidity value of the space above the storage box is detected to be larger than a third preset value; closing when the humidity value of the space above the storage box is detected to be smaller than a fourth preset value; the third preset value is greater than the fourth preset value.
2. The refrigerator of claim 1, wherein the pervaporation membrane comprises:
a hydrophilic layer and a hydrophobic layer which are compounded to form the pervaporation membrane, wherein
The surface of the hydrophilic layer, which faces away from the hydrophobic layer, is exposed inside the moisture permeable space, and the surface of the hydrophobic layer, which faces away from the hydrophilic layer, is exposed outside the moisture permeable space.
3. The refrigerator of claim 2, wherein
The hydrophilic layer is a polymer film containing sulfonic acid functional groups;
the hydrophobic layer is non-woven fabric.
4. The refrigerator according to claim 3,
the edge of an upper fixing plate is provided with a plurality of buckles, the edge of a lower fixing plate is provided with a plurality of bumps in a matched mode, and the upper fixing plate and the lower fixing plate are clamped and clamped to fix the pervaporation membrane.
5. The refrigerator according to claim 4,
the edge of the upper fixing plate is also provided with an outer edge used for being overlapped at the edge of the opening.
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| CN201810496397.6A CN110513936B (en) | 2018-05-22 | 2018-05-22 | Refrigerator with a door |
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| CN201810496397.6A CN110513936B (en) | 2018-05-22 | 2018-05-22 | Refrigerator with a door |
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| CN110513936B true CN110513936B (en) | 2021-11-26 |
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| CN112964015A (en) * | 2019-12-12 | 2021-06-15 | 青岛海尔电冰箱有限公司 | Storage container and refrigerator |
| CN112097447B (en) * | 2020-09-29 | 2022-03-25 | 青岛海尔电冰箱有限公司 | Refrigerator and control method thereof |
| CN113915877B (en) * | 2021-04-01 | 2024-02-02 | 海信冰箱有限公司 | Refrigerator and control method thereof |
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| JP2009085545A (en) * | 2007-10-02 | 2009-04-23 | Panasonic Corp | Refrigerator |
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| KR100587353B1 (en) * | 2004-06-14 | 2006-06-08 | 엘지전자 주식회사 | apparatus storing vegetables in the refrigerator |
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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