CN115143719B - Anti-condensation fresh-keeping drawer device, refrigerator and anti-condensation method - Google Patents
Anti-condensation fresh-keeping drawer device, refrigerator and anti-condensation method Download PDFInfo
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- CN115143719B CN115143719B CN202210643980.1A CN202210643980A CN115143719B CN 115143719 B CN115143719 B CN 115143719B CN 202210643980 A CN202210643980 A CN 202210643980A CN 115143719 B CN115143719 B CN 115143719B
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- 238000009833 condensation Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 109
- 239000011229 interlayer Substances 0.000 claims abstract description 77
- 230000005494 condensation Effects 0.000 claims abstract description 45
- 238000005192 partition Methods 0.000 claims description 28
- 238000000926 separation method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 235000012055 fruits and vegetables Nutrition 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 235000013305 food Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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
- 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
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/02—Refrigerators including a heater
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 invention provides an anti-condensation fresh-keeping drawer device, a refrigerator and an anti-condensation method, relates to the technical field of refrigerators, and solves the technical problems that in the prior art, air in a fresh-keeping drawer is directly heated to avoid condensation and frosting, and the temperature in the drawer is easy to be greatly increased. The invention provides a condensation prevention fresh-keeping drawer device, which adopts a mode of only heating the inner wall of a fresh-keeping drawer, so that the improvement range of the whole ambient temperature in the drawer can be reduced, the phenomenon of condensation on the inner wall can be reduced, and the fresh-keeping effect of fruits and vegetables is achieved. In order to quickly reduce the temperature of the drawer wall, cold air can be introduced into the interlayer air duct, and the cold air can be return air of a refrigerating chamber of the refrigerator. Through utilizing the air return of the refrigerating chamber to mix with the wind entering the supporting box body from the outer air inlet in proportion, and the mixed wind is conveyed to the interlayer air duct, the inner wall of the drawer is gradually cooled, and condensation is prevented from being generated in the cooling process.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an anti-condensation fresh-keeping drawer device, a refrigerator and an anti-condensation method.
Background
Condensation refers to the phenomenon that when the temperature reaches or falls below the dew point temperature, the water vapor in the environment is greater than the maximum water vapor amount which can be contained in the unit volume of air, and the redundant water is condensed into water drops. The refrigerator condensation is that the temperature inside the refrigerator is far lower than the outside environment temperature due to refrigeration of the refrigerator, and the refrigerator is frequently opened in the using process, so that hot air enters the refrigerator, and at the moment, high-temperature and high-humidity gas rapidly reaches the dew point temperature when encountering cold, and the high-temperature and high-humidity gas is liquefied and condensed into the condensation on the inner wall of the refrigerator. The condensation phenomenon of the refrigerator is more common in summer, plum rain weather or areas with higher relative humidity.
The refrigerator condensation can be in the form of mist, bead, running water and the like, serious condensation phenomena such as bead, running water and the like are easy to cause mildew in the refrigerator, and food materials such as fruits and vegetables are easy to spoil and deteriorate in soaking water, so that the storage and preservation of the food materials are not facilitated. The most common effective method for reducing condensation at present is to adopt a thermal compensation mode, and directly heat the refrigerator to ensure that the temperature of the internal environment or components of the refrigerator is not lower than the dew point temperature, so that the refrigerator can contain more water vapor, thereby reducing the condensation phenomenon, and the door body, the middle beam, the door seal and the like of the part of the refrigerators sold in the market at present adopt the design.
The fresh-keeping drawer in the refrigerator is commonly used for fresh-keeping of fruits and vegetables, has a relatively sealed structure and high humidity, is often opened by a user, has a relatively common condensation phenomenon on the inner wall of the drawer, and is easy to breed bacteria and mold. Some of the prior patents also adopt a thermal compensation mode to directly heat the air in the drawer so as to reduce condensation generated after each drawer opening and closing. However, the method can greatly improve the temperature of the space in the fresh-keeping drawer, accelerate the water loss of fruits and vegetables, strengthen the metabolism of the fruits and vegetables and is not beneficial to the storage of the fruits and vegetables and food materials.
Therefore, in view of the problems, the invention adopts a mode of only heating the inner wall of the fresh-keeping drawer, which not only can reduce the increase range of the whole environment temperature in the drawer, but also can reduce the inner wall condensation phenomenon and give consideration to the fresh-keeping effect of fruits and vegetables.
Disclosure of Invention
The invention aims to provide an anti-condensation fresh-keeping drawer device, a refrigerator and an anti-condensation method, which solve the technical problems that in the prior art, air in a fresh-keeping drawer is directly heated to avoid condensation and frosting, and the temperature in the drawer is easy to be greatly increased. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides an anti-condensation fresh-keeping drawer device which comprises a drawer structure, a heating air supply structure, an air inlet duct and an air outlet duct, wherein an interlayer duct is formed in the drawer structure, the drawer structure is connected with the heating air supply structure through the air inlet duct, the air outlet duct is connected with the interlayer duct, and hot air is introduced into the interlayer duct through the heating air supply structure so as to heat the inner wall of the drawer structure.
Further, the drawer structure comprises a drawer and a supporting cylinder, wherein the supporting cylinder is of a cylindrical structure with one end open, and an air inlet connected with the air inlet duct and an air outlet connected with the air outlet duct are arranged on the supporting cylinder.
Further, the interlayer air duct comprises circumferential interlayer air ducts distributed along the circumferential direction of the drawer, gaps exist among the rear side face, the left side face and the right side face of the drawer and the supporting cylinder, an inner cavity is formed in the front side plate of the drawer, two ends of the inner cavity are respectively opened to the left side and the right side of the front side plate, and the inner cavity and the gaps are used for forming the circumferential interlayer air duct.
Further, a rear partition plate is arranged on the supporting cylinder, the air inlet and the air outlet are positioned on two sides of the rear partition plate, and the rear side face of the drawer is abutted to the rear partition plate.
Further, the interlayer air duct comprises a bottom interlayer air duct arranged at the bottom of the drawer, a supporting piece is arranged on the supporting cylinder, the drawer is supported on the supporting piece, and a bottom gap between the bottom surface of the drawer and the supporting cylinder is used for forming the bottom interlayer air duct; the bottom of the supporting cylinder is provided with a bottom partition plate, and the air inlet and the air outlet are positioned on two sides of the bottom partition plate.
Further, the support and the bottom partition plate are the same component; alternatively, the support and the bottom divider plate are separate components; the bottom separation plate is abutted with the bottom surface of the drawer, and a space exists between the bottom separation plate and the opening end of the supporting cylinder.
Further, the interlayer air duct comprises a top interlayer air duct arranged at the top of the drawer, a cavity is formed in the top plate of the supporting cylinder, and the cavity is communicated with the air inlet and the air outlet to form the top interlayer air duct; the cavity is internally provided with a top separation plate, and the air inlet and the air outlet are positioned on two sides of the top separation plate.
Further, mounting holes are formed in the side plates of the drawer, and perspective films are arranged at the mounting holes.
Further, the heating air supply structure comprises a supporting box body, a heating device and a driving pump, wherein the heating device is arranged in the supporting box body, an outer air inlet and an air supply opening are formed in the supporting box body, the driving pump is arranged at the outer air inlet, and the air supply opening is connected with the air inlet duct.
Further, the air supply outlet is provided with a fan, and the fan is connected with a driving motor.
Further, the heating air supply structure further comprises a dehumidifying device, the dehumidifying device is arranged in the supporting box body, and air entering from the outer air inlet can be discharged from the air supply opening through the dehumidifying device.
Further, a cold air inlet is formed in the supporting box body, and return air in the refrigerating chamber of the refrigerator can flow to the cold air inlet through a refrigerating air duct.
The invention provides a refrigerator, which comprises the anti-condensation fresh-keeping drawer device.
The invention provides a condensation preventing method of the condensation preventing fresh-keeping drawer device, which comprises the following steps: detecting a temperature within the drawer; when the temperature in the drawer is lower than a temperature set value, the heating air supply structure is used for manufacturing warm air and introducing the warm air into the interlayer air duct.
Further, the internal temperature T of the drawer is detected in real time a And drawer wall temperature T b According to the temperature difference between the interior of the drawer and the drawer wall, the air outlet temperature T of the heating air supply structure is adjusted c 。
Further, when the temperature T in the drawer a ≤T a1 When in use, the air outlet temperature T of the heating air supply structure is controlled c Take the value at T c1 <T c ≤T c2 The method comprises the steps of carrying out a first treatment on the surface of the When the temperature T in the drawer is a1 <T a ≤T a2 When in use, the air outlet temperature T of the heating air supply structure is controlled c Take the value at T c2 <T c ≤T c3 The method comprises the steps of carrying out a first treatment on the surface of the When the temperature T in the drawer is a >T a2 When in use, the air outlet temperature T of the heating air supply structure is controlled c Take the value at T c3 <T c ≤T c4 。
Further, the method also comprises the following steps: judging |T a -T b Whether or not is not greater than Δt1; if yes, detecting whether the humidity of the drawer is smaller than a preset humidity value; if not, the rotating speed of the fan of the heating air supply structure is increased; wherein T is a T is the temperature in the drawer b For the temperature of the drawer wall, Δt1>0。
Further, if the humidity of the drawer is smaller than a preset humidity value and the temperature in the drawer is reduced, the temperature of the air outlet of the heating air supply structure is gradually reduced.
Further, the method also comprises the following steps: judging |T a -T b Whether or not is not greater than Δt2; if yes, judging whether the temperature in the drawer is reduced to a preset temperature range value; if so, stopping introducing air flow into the interlayer air duct, and if not, repeatedly executing gradual reduction of the air outlet temperature of the heating air supply structure.
Further, regarding the air supply of the heating air supply structure, the following is included: if the air outlet temperature T of the heating air supply structure is required c >T c1 When' the heating device in the heating air supply structure is started, the external air passing through the heating device is sent to the interlayer air duct; if the air outlet temperature T of the heating air supply structure is required c >T c1 When' the heating device in the heating air supply structure stops, and mixed external air and return air in the refrigerating chamber of the refrigerator are sent to the interlayer air duct; if the air outlet temperature T of the heating air supply structure is required c ≤T c2 ' at the time, the heatingAnd stopping the heating device in the air supply structure, and supplying the return air of the refrigerating chamber of the refrigerator to the interlayer air duct.
The invention provides a condensation prevention fresh-keeping drawer device, which adopts a mode of only heating the inner wall of a fresh-keeping drawer, so that the improvement range of the whole ambient temperature in the drawer can be reduced, the phenomenon of condensation on the inner wall can be reduced, and the fresh-keeping effect of fruits and vegetables is achieved.
The preferred technical scheme of the invention can at least have the following technical effects:
the temperature of the inner space of the drawer and the temperature of the inner wall of the drawer are monitored in real time, and the air supply temperature of the air supply opening is adjusted, so that the temperature of the inner wall of the drawer is not too high, and the fresh keeping of fruits and vegetables is facilitated;
the relative humidity in the drawer is monitored in real time, and when the humidity in the drawer is larger than a set humidity value, the conveying speed of warm air (namely the rotating speed of a fan of a heating air supply structure) is adjusted, so that redundant moisture can enter an interlayer air channel faster through a perspective film;
in order to quickly reduce the temperature of the drawer wall, cold air can be introduced into the interlayer air duct, so that a cold air inlet is arranged on the supporting box body, and a source of the cold air is provided by leading the return air of the refrigerating chamber of the refrigerator into the supporting box body. The source of cold air is not limited to the return air of the refrigerating chamber, but also can be air flow after being refrigerated by the refrigerator evaporator, in addition, the return air of the refrigerating chamber is mixed with the air entering the supporting box body from the outer air inlet in proportion, and the mixed air is conveyed to the interlayer air flue, so that the inner wall of the drawer is gradually cooled, and condensation is prevented in the cooling process.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an anti-condensation fresh-keeping drawer device provided by an embodiment of the invention, which is arranged in a refrigerator;
FIG. 2 is a schematic view of a drawer structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a drawer structure (drawer in pulled-out state) according to an embodiment of the present invention;
FIG. 4 is a schematic view of a support cylinder according to an embodiment of the present invention;
FIG. 5 is a schematic view of a drawer according to an embodiment of the present invention;
FIG. 6 is a schematic front view of a drawer structure according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of A-A of FIG. 6;
FIG. 8 is a schematic view in section B-B of FIG. 6;
FIG. 9 is a schematic cross-sectional view of C-C of FIG. 6;
FIG. 10 is a schematic diagram of a heating and air-supplying structure according to an embodiment of the present invention;
fig. 11 is a control flow chart of an anti-condensation method according to an embodiment of the present invention.
1-heating air supply structure in the figure; 101-supporting a box body; 1011-an outer air inlet; 1012-an air supply port; 1013-a cold air inlet; 102-a heating device; 103-a fan; 104-driving a pump; 105-a dehumidifying device; 2-an air inlet duct; 3-an air outlet duct; 4-drawers; 401-lumen; 5-a support cylinder; 501-an air inlet; 502-an air outlet; 503-a rear partition; 504-a support; 505-bottom separator plate; 506-cavity; 507-top separator plate; 6-perspective film; 7-refrigerating air duct; 8-the outer air inlet is connected with an air duct; 9-a first sensor; 10-a second sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
In the prior art, the air in the drawer is directly heated to reduce the condensation generated after the drawer is opened and closed each time, but the method can greatly improve the temperature of the space in the fresh-keeping drawer, and is not beneficial to the storage of fruit, vegetable and food materials. Based on the above, the invention provides the anti-condensation fresh-keeping drawer device, which adopts a mode of only heating the inner wall of the fresh-keeping drawer, so that the improvement range of the whole environment temperature in the drawer can be reduced, the inner wall condensation phenomenon can be reduced, and the fresh-keeping effect of fruits and vegetables is considered. The anti-condensation fresh-keeping drawer device has the following structure: including drawer structure, heating air supply structure 1, air inlet wind channel 2 and air-out wind channel 3, wherein, form the intermediate layer wind channel in the drawer structure, drawer structure is connected through air inlet wind channel 2 with heating air supply structure 1, and the warm braw that heating air supply structure 1 produced can send into the intermediate layer wind channel through air inlet wind channel 2, and air-out wind channel 3 is connected with the intermediate layer wind channel, and outside the air in the intermediate layer wind channel accessible air-out wind channel 3 was discharged the refrigerator, the inner wall that can heat drawer structure through heating air supply structure 1 lets in hot-blast to the intermediate layer wind channel. The temperature of the inner wall of the drawer is increased by passing dry hot air through the interlayer air duct, so that the temperature is always higher than the dew point temperature of the air, the formation of beaded and flowing water-like condensation is effectively prevented, and the mildewing phenomenon in the drawer is improved. In addition, by only heating the inner wall of the drawer, the increase of the whole ambient temperature in the drawer is reduced.
Regarding the drawer structure, the structure is as follows: referring to fig. 2 and 3, the drawer structure includes a drawer 4 and a support cylinder 5, the support cylinder 5 is a cylindrical structure with one end open, an air inlet 501 connected with the air inlet duct 2 and an air outlet 502 connected with the air outlet duct 3 are arranged on the support cylinder 5, and a gap between the drawer 4 and the support cylinder 5 can be used for forming an interlayer duct.
The intermediate layer wind channel includes the circumference intermediate layer wind channel that distributes along drawer 4 circumference direction, and there is the clearance between drawer 4's trailing flank, left flank and right flank and the support section of thick bamboo 5, forms inner chamber 401 on the preceding curb plate of drawer 4, and the both ends of inner chamber 401 open respectively to the left and right sides of preceding curb plate, and inner chamber 401 and clearance are used for forming circumference intermediate layer wind channel. Referring to fig. 5, an interior cavity 401 is illustrated. Referring to fig. 7, it can be seen that there are gaps between the rear, left and right sides of the drawer 4 and the support cylinder 5, and the gaps are in communication with the inner cavity 401. The support cylinder 5 is provided with a rear partition plate 503, the air inlet 501 and the air outlet 502 are located on both sides of the rear partition plate 503, and the rear side surface of the drawer 4 is abutted against the rear partition plate 503 (of course, the rear partition plate 503 may be provided on the rear side surface of the drawer 4 and abutted against the side surface corresponding to the support cylinder 5). In fig. 8, the flow direction of the air flow is shown, and the air flow enters from the air inlet 501, passes through the circumferential interlayer air duct, and is discharged from the air outlet 502 to the air outlet air duct 3. When warm air is introduced into the circumferential interlayer air channel, the front, back, left and right inner side wall surfaces of the drawer 4 can be heated so as to prevent condensation of the front, back, left and right inner side wall surfaces of the drawer 4.
The interlayer air duct further comprises a bottom interlayer air duct arranged at the bottom of the drawer 4, a support piece 504 is arranged on the support barrel 5, the drawer 4 is supported on the support piece 504, a bottom gap between the bottom surface of the drawer 4 and the support barrel 5 is used for forming the bottom interlayer air duct, and referring to fig. 9, the bottom interlayer air duct is schematically shown, and the bottom interlayer air duct is communicated with the air inlet 501 and the air outlet 502; the bottom surface of the support cylinder 5 is provided with a bottom partition plate 505, and the air inlet 501 and the air outlet 502 are located on both sides of the bottom partition plate 505. Referring to fig. 9, the flow direction of the air flow is shown, and the air flow enters from the air inlet 501, passes through the bottom interlayer air duct, and is discharged from the air outlet 502. By supplying warm air to the bottom interlayer air duct, the bottom surface of the drawer 4 can be heated to prevent condensation of the bottom inner side surface of the drawer 4.
The supporting member 504 and the bottom partition plate 505 may be the same component, that is, only the air inlet 501 and the air outlet 502 are disposed on the bottom partition plate 505, and the bottom partition plate 505 is also equivalent to the supporting member 504 at this time; but preferably the support 504 and the bottom separation plate 505 are different components, and referring to fig. 9, two support 504 are illustrated, and the two support 504 are respectively located on the left and right sides of the bottom separation plate 505; the bottom partition plate 505 abuts against the bottom surface of the drawer 4 and the bottom partition plate 505 is spaced apart from the open end of the support cylinder 5. Referring to fig. 9, the position of the bottom partition plate 505 on the support cylinder 5 is illustrated, and the bottom partition plate 505 is added to prevent warm air entering from the air inlet 501 from being directly discharged from the air outlet 502.
The interlayer air duct further comprises a top interlayer air duct arranged at the top of the drawer 4, a cavity 506 is formed in the top plate of the supporting cylinder 5, and the cavity 506 is communicated with the air inlet 501 and the air outlet 502 to form a top interlayer air duct; a top partition plate 507 is disposed inside the cavity 506, and the air inlet 501 and the air outlet 502 are located at both sides of the top partition plate 507. Referring to fig. 7, a top stack duct is illustrated, as is the flow of air in the top stack duct. The air flow enters the cavity 506 from the air inlet 501 and then exits from the air outlet 502. Through setting the roof of support section of thick bamboo 5 to the cavity structure, be convenient for to the inside wall heating of support section of thick bamboo 5 roof to prevent the condition that the condensation appears in the inside wall of support section of thick bamboo 5 roof.
Preferably, mounting holes are arranged on the side plates of the drawer 4, and perspective films 6 are arranged at the mounting holes. The moisture permeable membrane 6 allows permeation of moisture from a high humidity to a low humidity environment. The perspective film 6 is made of Thermoplastic Polyurethane (TPEE), thermoplastic polyester elastomer (TPU) and other materials, and can utilize the convection effect of hot air in the interlayer air duct when in operation, so that the excessive moisture in the drawer can enter the interlayer air duct through the moisture permeable film 6 and leave the refrigerator along with the drying air.
With respect to the arrangement of the see-through films 6 on the drawer 4, see fig. 5, it is illustrated that two see-through films 6 are symmetrically arranged on the drawer 4. Of course, the arrangement of the see-through film 6 on the drawer 4 is not limited to only two. The relative humidity inside the drawer is monitored in real time, and when the humidity in the drawer is larger than the set humidity value, the conveying speed of warm air (namely, the rotating speed of the fan 103 of the heating air supply structure 1 is adjusted) is adjusted, so that redundant moisture can enter the interlayer air channel faster through the perspective film 6.
Regarding the heating air blowing structure 1, the specific structure is as follows: referring to fig. 10, the heating air supply structure 1 includes a supporting box 101, a heating device 102 and a driving pump 104, the heating device 102 is disposed in the supporting box 101, an outer air inlet 1011 and an air supply port 1012 are disposed on the supporting box 101, the driving pump 104 is disposed at the outer air inlet 1011, the air supply port 1012 is connected with the air inlet duct 2, when the driving pump 104 acts, the driving pump 104 enters the air outside the refrigerator into the supporting box 101 through the outer air inlet 1011, and the air in the supporting box 101 is discharged from the air supply port 1012 after passing through the heating device 102.
A fan 103 is preferably provided in the air supply port 1012, and the fan 103 is connected to a driving motor. When the fan 103 rotates, heated air is conveniently discharged to the air inlet duct 2 through the air supply port 1012, and then is sent into the interlayer duct.
A first sensor 9 and a second sensor 10 are arranged in the drawer 4, and the first sensor 9 detects the temperature T of the inner wall of the drawer b The second sensor detects the temperature T inside the drawer 4 a The temperature of the inner space of the drawer and the temperature of the inner wall of the drawer are monitored in real time, and the air supply temperature of the air supply port 1012 is adjusted, so that the temperature of the inner wall of the drawer cannot be too high, and the fresh keeping of fruits and vegetables is facilitated. The outer air inlet 1011, the air outlet 1012 and the air outlet duct 3 are all provided with air valves.
When the temperature T in the drawer 4 a ≤T a1 At the time, the air outlet temperature T of the heating air supply structure 1 is controlled c Take the value at T c1 <T c ≤T c2 I.e. when opening the drawer 4 of the refrigerator, the second sensor detects the temperature T of the drawer 4 a ≤T a1 Time (T) a 1 Can take the value of 10 ℃ and T a The temperature of the air is larger than the preset refrigerating temperature range, the preset refrigerating temperature range is usually 5-7 ℃, the air valve on the outer air inlet 1011 is opened, the driving pump 104 and the heating device 102 are started, the temperature in the supporting box body 101 is increased, and when the temperature in the supporting box body 101 reaches T c1 ～T c2 (T c1 Can be 20 ℃, T c2 30 deg.c), the air valve of the air supply port 1012 and the air valve of the air outlet duct 3 are opened, and the fan 103 is rotated so that warm air enters the interlayer duct.
When the temperature T in the drawer 4 a1 <T a ≤T a2 At the time, the air outlet temperature T of the heating air supply structure 1 is controlled c Take the value at T c2 <T c ≤T c3 I.e. when opening the drawer 4 of the refrigerator, the second sensor detects the temperature T of the drawer 4 a1 <T a ≤T a2 Time (T) a 1 Can be 10 ℃, T a2 The value of (1) can be 20 ℃), the air valve on the outer air inlet 1011 is opened, the pump 104 and the heating device 102 are driven, the temperature in the supporting box body 101 is increased, and when the supporting box body 101 is inIs up to T c2 ～T c3 (T c2 Can be 30 ℃, T c3 May be 40 deg.c), the air valve of the air supply port 1012 is opened, the air valve on the air outlet duct 3 is opened, and the fan 103 is rotated so that warm air enters the interlayer duct.
When the temperature T in the drawer 4 a >T a2 At the time, the air outlet temperature T of the heating air supply structure 1 is controlled c Take the value at T c3 <T c ≤T c4 I.e. when opening the drawer 4 of the refrigerator, the second sensor detects the temperature T of the drawer 4 a >T a2 Time (T) a2 The value of (1) can be 20 ℃), the air valve on the outer air inlet 1011 is opened, the driving pump 104 and the heating device 102 are driven to increase the temperature in the supporting box body 101, and when the temperature in the supporting box body 101 reaches T c3 ～T c4 (T c3 Can be 40 ℃, T c4 May be 50 deg.c), the air valve of the air supply port 1012 is opened, and the air valve on the air outlet duct 3 is opened, and the fan 103 is rotated so that warm air enters the interlayer duct.
As an alternative embodiment, the heating and air-supplying structure 1 further includes a dehumidifying device 105, wherein the dehumidifying device 105 is disposed in the supporting case 101, and air entering from the external air inlet 1011 can be discharged from the air outlet 1012 through the dehumidifying device 105. The dehumidifying device 105 dehumidifies the air entering the supporting box 101 to improve the drying air flow into the interlayer air duct.
As an alternative embodiment, a cold air inlet 1013 is provided on the supporting case 101, and the return air of the refrigerator refrigerating chamber can flow to the cold air inlet 1013 through the refrigerating duct 7. The cold air inlet 1013 is provided with an air valve, and the cold air inlet 1013 is opened by the air valve, so that the return air of the refrigerator refrigerating chamber can flow to the cold air inlet 1013 through the refrigerating air duct 7. The cooling air is introduced into the supporting box 101 to lower the temperature of the side wall of the drawer 4.
When the drawer 4 is opened, the temperature inside the drawer 4 increases, and the temperature of the drawer wall is low, resulting in the formation of dew on the inner wall of the drawer easily. When the drawer 4 is opened, if the temperature of the drawer 4 is increased, warm air is introduced into the interlayer air duct, so that the condition of condensation on the inner wall of the drawer 4 is avoided. When the refrigerator door is closed, the temperature in the drawer 4 is gradually reduced, and at the moment, the temperature of the drawer wall needs to be reduced, and in order to quickly reduce the temperature of the drawer wall, cold air can be introduced into the interlayer air duct. Thus, a cold air inlet 1013 is provided in the support housing 101 to provide a source of "cold air" by routing the refrigerator fresh air back into the support housing 101. The source of the "cool air" is not limited to the return air of the refrigerating chamber, but may be an air flow cooled by the evaporator of the refrigerator.
In addition, the return air of the refrigerating chamber is mixed with the air entering the supporting box body 101 from the outer air inlet 1011 according to a proportion, and the mixed air is conveyed to the interlayer air duct, so that the inner wall of the drawer is gradually cooled, and condensation is prevented from being generated in the cooling process.
A refrigerator comprises the anti-condensation fresh-keeping drawer device provided by the invention. The anti-condensation fresh-keeping drawer device adopts a mode of only heating the inner wall of the fresh-keeping drawer, so that the improvement range of the whole ambient temperature in the drawer can be reduced, the phenomenon of condensation on the inner wall can be reduced, and the fresh-keeping effect of fruits and vegetables is achieved.
The condensation preventing method of the condensation preventing fresh-keeping drawer device comprises the following steps: detecting the temperature inside the drawer 4; when the temperature in the drawer 4 is lower than the temperature set value, the heating air supply structure 1 produces warm air and the warm air is introduced into the interlayer air duct. The temperature of the inner wall of the drawer is increased by passing dry hot air through the interlayer air duct, so that the temperature is always higher than the dew point temperature of the air, the formation of beaded and flowing water-like condensation is effectively prevented, and the mildewing phenomenon in the drawer is improved. In addition, by only heating the inner wall of the drawer, the increase of the whole ambient temperature in the drawer is reduced.
Real-time detection of drawer internal temperature T a And drawer wall temperature T b According to the internal temperature T of the drawer a And drawer wall temperature T b The temperature difference of the air outlet temperature T of the heating air supply structure 1 is adjusted c 。
In particular, when the temperature T in the drawer 4 a ≤T a1 At the time, the air outlet temperature T of the heating air supply structure 1 is controlled c Take the value at T c1 <T c ≤T c2 The method comprises the steps of carrying out a first treatment on the surface of the When the temperature T in the drawer 4 a1 <T a ≤T a2 In the time-course of which the first and second contact surfaces,control the air outlet temperature T of the heating air supply structure 1 c Take the value at T c2 <T c ≤T c3 The method comprises the steps of carrying out a first treatment on the surface of the When the temperature T in the drawer 4 a >T a2 At the time, the air outlet temperature T of the heating air supply structure 1 is controlled c Take the value at T c3 <T c ≤T c4 . The temperature of the inner space of the drawer and the temperature of the inner wall of the drawer are monitored in real time, and the air supply temperature of the air supply port 1012 is adjusted, so that the temperature of the inner wall of the drawer cannot be too high, and the fresh-keeping of fruits and vegetables is facilitated.
As an alternative embodiment, the following is also included: judging |T a -T b Whether or not is not greater than Δt1; if yes, detecting whether the humidity of the drawer 4 is smaller than a preset humidity value; if the humidity of the drawer 4 is not less than the preset humidity value, the rotating speed of the fan 103 for heating the air supply structure 1 is increased; wherein T is a T is the temperature in the drawer 4 b For the temperature of the drawer 4 wall, Δt1>0. Judging |T a -T b Judging whether the I is not more than deltat 1, i.e. judging the internal temperature T of the drawer a And drawer wall temperature T b Is already close to the temperature of (1) and deltat 1 may be 0.5 deg.c. If |T a -T b I is not more than deltat 1, indicating the internal temperature T of the drawer a And drawer wall temperature T b Can continue to judge whether the humidity of the drawer 4 is less than the preset humidity value, if the humidity of the drawer 4 is not less than the preset humidity value, the air in the drawer 4 needs to be dehumidified, at this time, the rotating speed of the fan 103 is increased, so that the redundant moisture in the drawer 4 can enter the interlayer air channel faster through the perspective film 6. When |T a -T b When I is larger than deltat 1, the internal temperature T of the drawer is indicated a And drawer wall temperature T b Is larger, and still needs to increase the drawer wall temperature T b Is set in the temperature range of (a).
Judging |T a -T b Whether or not is not greater than Δt1; if yes, detecting whether the humidity of the drawer 4 is smaller than a preset humidity value; if the humidity of the drawer 4 is less than the preset humidity value and the temperature in the drawer 4 is reduced (indicating that the refrigerator door is closed and the temperature in the drawer 4 is gradually cooled and reduced), the temperature of the air outlet of the heating air supply structure 1 is gradually reduced.
Regarding the "gradually reducing the temperature of the air outlet of the heating air supply structure 1", that is, the inner wall of the drawer is gradually cooled, condensation is prevented from being generated in the cooling process, the air outlet temperature of the heating air supply structure 1 can be adjusted downwards at every 2 ℃, so that the inner wall of the drawer is gradually reduced to a preset refrigeration temperature value in the drawer.
Judging |T a -T b Whether or not is not greater than Δt1; if yes, detecting whether the humidity of the drawer 4 is smaller than a preset humidity value; if the humidity of the drawer 4 is less than the preset humidity value and the temperature in the drawer 4 is reduced, the temperature of the air outlet of the heating air supply structure 1 is gradually reduced. Thereafter, the determination of |T is continued again a -T b Whether or not is not greater than Δt2; if yes, judging whether the temperature in the drawer 4 is reduced to a preset temperature range value; if the temperature in the drawer 4 is reduced to the preset temperature range value, the air flow is stopped from being introduced into the interlayer air duct, and if the temperature in the drawer 4 is not reduced to the preset temperature range value, the air outlet temperature of the heating air supply structure 1 is reduced by 2 ℃ for air supply.
When |T a -T b The I is not more than delta t2, which indicates that the temperature of the inner wall of the drawer is reduced to be close to a preset refrigeration temperature value in the drawer; i T a -T b I is greater than Deltat2, indicating the internal temperature T of the drawer a And drawer wall temperature T b When the temperature difference is larger, the internal temperature T of the drawer is continuously detected a And drawer wall temperature T b If T is the temperature of a <T b The temperature of the air outlet of the heating air supply structure 1 is adjusted to be 2 ℃ for supplying air, if T a >T b The air outlet temperature of the heating air supply structure 1 is unchanged, and at this time, the internal temperature T of the drawer a Descending.
The air supply of the heating air supply structure 1 includes the following: if the air outlet temperature T of the air supply structure 1 needs to be heated c >T c1 When' is carried out, the heating device 102 in the heating air supply structure 1 is started, and the external air passing through the heating device 102 is sent to the interlayer air channel; if the air outlet temperature T of the air supply structure 1 needs to be heated c2 '<T c ≤T c1 When' the heating device 102 in the heating air supply structure 1 is stopped, the mixed external air and the return air in the refrigerating chamber of the refrigerator are sent to the interlayer air duct; if the air outlet temperature T of the air supply structure 1 needs to be heated c ≤T c2 ' at the time of heating the air blowing structure 1The thermal device 102 is stopped and refrigerator fresh food compartment return air is directed to the sandwiched duct.
When the refrigerator door is closed, the temperature in the drawer 4 is gradually reduced, and at the moment, the temperature of the drawer wall needs to be reduced, and in order to quickly reduce the temperature of the drawer wall, cold air can be introduced into the interlayer air duct. Thus, a cold air inlet 1013 is provided in the support housing 101 to provide a source of "cold air" by routing the refrigerator fresh air back into the support housing 101. The source of the "cool air" is not limited to the return air of the refrigerating chamber, but may be an air flow cooled by the evaporator of the refrigerator.
In addition, the return air of the refrigerating chamber is mixed with the air entering the supporting box body 101 from the outer air inlet 1011 according to a proportion, and the mixed air is conveyed to the interlayer air duct, so that the inner wall of the drawer is gradually cooled, and condensation is prevented from being generated in the cooling process.
For the condensation control method, see the flowchart of fig. 11, specifically exemplified as follows:
when the user opens the drawer 4, the temperature of the space in the drawer 4 is determined, and the driving pump 104 and the heating device 102 are started, if the temperature T in the drawer 4 is the same a When the temperature is less than or equal to 10 ℃, the temperature of the supporting box body 101 is controlled to be 20 DEG C<T c Less than or equal to 30 ℃ (enabling the air outlet temperature T of the heating air supply structure 1 to be c The value is 20 DEG C<T c Not more than 30 ℃; when the temperature in the drawer 4 is 10 DEG C<T a When the temperature is less than or equal to 20 ℃, the temperature value of the supporting box body 101 is controlled to be 30 DEG C<T c 40 ℃ (so that the air outlet temperature T of the heating air supply structure 1 is less than or equal to 40℃) c The value is 30 DEG C<T c Less than or equal to 40 ℃; when the temperature T in the drawer 4 a >At 20deg.C, the temperature of the supporting box body 101 is controlled to 40 deg.C<T c 50 ℃ (so that the air outlet temperature T of the heating air supply structure 1 is less than or equal to 50℃) c The value is 40 DEG C<T c ≤50℃)。
When the temperature in the supporting case 101 reaches the above-mentioned requirement, the air supply port 1012 is opened, the fan 103 is operated, and the rotation speed of the fan is W. The dried warm air or hot air flows to the interlayer air duct through the air inlet air duct 2, and the first sensor 9 and the second sensor 10 detect the drawer wall temperature T in real time outside the refrigerator discharged through the air outlet air duct 3 b And drawTemperature T in drawer a 。
When |T a -T b When the temperature is less than or equal to 0.5, the second sensor detects the humidity in the drawer 4, and if the humidity in the drawer 4 is greater than a preset humidity value H 0 The rotation speed of the fan 103 is increased to dehumidify the inside of the drawer 4. When the humidity in the drawer 4 is not greater than the preset humidity value H 0 When the temperature in the drawer 4 is reduced (the refrigerator door is closed, the temperature in the drawer 4 is reduced by refrigeration), the temperature in the supporting box body 101 is gradually reduced, and the air outlet temperature of the heating air supply structure 1 can be adjusted downwards at every 2 ℃, so that the inner wall of the drawer is gradually reduced to a preset refrigeration temperature value in the drawer. With respect to T in the flow chart c ＝T c '-2℃，T c ' is the previous temperature value.
The temperature of the air outlet of the heating air supply structure 1 is adjusted by 2 ℃, and the first sensor 9 and the second sensor 10 detect the temperature T of the drawer wall in real time b And the temperature T in the drawer a When |T a -T b Judging the temperature T in the drawer when the temperature is less than or equal to 0.2 a Whether the temperature is less than or equal to 5 ℃ T a If the temperature is less than or equal to 7 ℃, the fan 103 is stopped, and the air valves on the outer air inlet 1011, the air outlet 1012 and the air outlet duct 3 are all in a closed state; if T a And when the temperature is higher than 7 ℃, the air outlet temperature of the heating air supply structure 1 is adjusted to be 2 ℃ for air supply. If not meeting |T a -T b The temperature T in the drawer is less than or equal to 0.2 a And drawer wall temperature T b When the temperature difference is larger, the internal temperature T of the drawer is continuously detected a And drawer wall temperature T b If T is the temperature of a <T b The temperature of the air outlet of the heating air supply structure 1 is adjusted to be 2 ℃ for supplying air, if T a >T b The air outlet temperature of the heating air supply structure 1 is unchanged, and at this time, the internal temperature T of the drawer a Descending.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (19)
1. The anti-condensation fresh-keeping drawer device is characterized by comprising a drawer structure, a heating air supply structure (1), an air inlet duct (2) and an air outlet duct (3), wherein,
an interlayer air duct is formed in the drawer structure, the drawer structure is connected with the heating air supply structure (1) through the air inlet duct (2), the air outlet duct (3) is connected with the interlayer air duct, and hot air is introduced into the interlayer air duct through the heating air supply structure (1) so as to heat the inner wall of the drawer structure;
the drawer structure comprises a drawer (4) and a supporting cylinder (5), wherein the supporting cylinder (5) is of a cylindrical structure with one end open, and an air inlet (501) connected with the air inlet duct (2) and an air outlet (502) connected with the air outlet duct (3) are arranged on the supporting cylinder (5);
the interlayer air duct comprises a circumferential interlayer air duct formed between the drawer (4) and the supporting cylinder (5) and/or a bottom interlayer air duct formed at the bottom of the drawer (4) and/or a top interlayer air duct formed at the top of the drawer (4).
2. The anti-condensation fresh-keeping drawer device according to claim 1, wherein the interlayer air duct comprises circumferential interlayer air ducts distributed along the circumferential direction of the drawer (4), gaps exist among the rear side surface, the left side surface and the right side surface of the drawer (4) and the supporting cylinder (5), an inner cavity (401) is formed on a front side plate of the drawer (4), two ends of the inner cavity (401) are respectively opened to the left side and the right side of the front side plate, and the inner cavity (401) and the gaps are used for forming the circumferential interlayer air duct.
3. The anti-condensation fresh-keeping drawer device according to claim 2, wherein a rear partition plate (503) is arranged on the supporting cylinder (5), the air inlet (501) and the air outlet (502) are positioned on two sides of the rear partition plate (503), and the rear side surface of the drawer (4) is abutted against the rear partition plate (503).
4. The anti-condensation fresh-keeping drawer device according to claim 1, wherein the interlayer air duct comprises a bottom interlayer air duct arranged at the bottom of the drawer (4), a support piece (504) is arranged on the support cylinder (5), the drawer (4) is supported on the support piece (504), and a bottom gap between the bottom surface of the drawer (4) and the support cylinder (5) is used for forming the bottom interlayer air duct; the bottom of the supporting cylinder (5) is provided with a bottom partition plate (505), and the air inlet (501) and the air outlet (502) are positioned on two sides of the bottom partition plate (505).
5. The anti-condensation fresh-keeping drawer arrangement according to claim 4, characterized in that the support (504) is the same component as the bottom partition plate (505); alternatively, the support (504) and the bottom divider plate (505) are different components;
the bottom separation plate (505) is abutted with the bottom surface of the drawer (4), and a space exists between the bottom separation plate (505) and the opening end of the supporting cylinder (5).
6. The anti-condensation fresh-keeping drawer device according to claim 1, wherein the interlayer air duct comprises a top interlayer air duct arranged at the top of the drawer (4), a cavity (506) is formed in a top plate of the supporting cylinder (5), and the cavity (506) is communicated with the air inlet (501) and the air outlet (502) to form the top interlayer air duct; the cavity (506) is internally provided with a top separation plate (507), and the air inlet (501) and the air outlet (502) are positioned on two sides of the top separation plate (507).
7. The anti-condensation fresh-keeping drawer device according to any one of claims 1 to 6, wherein a mounting hole is arranged on a side plate of the drawer (4), and a perspective film (6) is arranged at the mounting hole.
8. The condensation preventing fresh keeping drawer device according to any one of claims 1 to 6, wherein the heating air supply structure (1) comprises a supporting box body (101), a heating device (102) and a driving pump (104), the heating device (102) is arranged in the supporting box body (101), an outer air inlet (1011) and an air supply port (1012) are arranged on the supporting box body (101), the driving pump (104) is arranged at the outer air inlet (1011), and the air supply port (1012) is connected with the air inlet duct (2).
9. The anti-condensation fresh-keeping drawer device according to claim 8, wherein the air supply opening (1012) is provided with a fan (103), and the fan (103) is connected with a driving motor.
10. The anti-condensation fresh-keeping drawer device according to claim 8, wherein the heating air supply structure (1) further comprises a dehumidifying device (105), the dehumidifying device (105) is arranged in the supporting box body (101), and air entering from the outer air inlet (1011) can be discharged from the air supply port (1012) through the dehumidifying device (105).
11. The anti-condensation fresh-keeping drawer device according to claim 8, wherein the supporting box body (101) is provided with a cold air inlet (1013), and the return air of the refrigerator refrigerating chamber can flow to the cold air inlet (1013) through the refrigerating air duct (7).
12. A refrigerator comprising the anti-condensation fresh-keeping drawer apparatus according to any one of claims 1 to 11.
13. A condensation preventing method of the condensation preventing fresh keeping drawer device according to any one of claims 1 to 11, comprising the following steps:
detecting a temperature inside the drawer (4);
when the temperature in the drawer (4) is lower than a temperature set value, the heating air supply structure (1) is used for manufacturing warm air and introducing the warm air into the interlayer air duct.
14. Condensation preventing method according to claim 13, characterized in that the internal temperature of the drawer (4) is detected in real timeDegree T a And drawer wall temperature T b According to the temperature difference between the interior of the drawer and the wall of the drawer, the air outlet temperature T of the heating air supply structure (1) is adjusted c 。
15. Condensation preventing method according to claim 14, characterized in that when the temperature T in the drawer (4) a ≤T a1 When in use, the air outlet temperature T of the heating air supply structure (1) is controlled c Take the value at T c1 ＜T c ≤T c2 ；
When the temperature T in the drawer (4) a1 ＜T a ≤T a2 When in use, the air outlet temperature T of the heating air supply structure (1) is controlled c Take the value at T c2 ＜T c ≤T c3 ；
When the temperature T in the drawer (4) a ＞T a2 When in use, the air outlet temperature T of the heating air supply structure (1) is controlled c Take the value at T c3 ＜T c ≤T c4 。
16. The condensation preventing method according to claim 13, further comprising the following:
judging |T a -T b Whether or not is not greater than Δt1;
if yes, detecting whether the humidity of the drawer (4) is smaller than a preset humidity value;
if not, the rotating speed of the fan (103) of the heating air supply structure (1) is increased;
wherein T is a T is the temperature in the drawer b For the temperature of the drawer wall Δt1 > 0.
17. The condensation preventing method according to claim 16, wherein if the humidity of the drawer (4) is less than a preset humidity value and the temperature in the drawer is reduced, the temperature of the air outlet of the heating air supply structure (1) is gradually reduced.
18. The condensation preventing method according to claim 17, further comprising the following:
judgment T a -T b Whether or not it is not greater than deltat 2;
if yes, judging whether the temperature in the drawer (4) is reduced to a preset temperature range value;
if so, stopping introducing air flow into the interlayer air duct, and if not, repeatedly executing gradual reduction of the air outlet temperature of the heating air supply structure (1).
19. The condensation preventing method according to claim 17, characterized in that the air supply with respect to the heating air supply structure (1) comprises the following:
if the air outlet temperature T of the heating air supply structure (1) is required c ＞T c1 When' is carried out, a heating device (102) in the heating air supply structure (1) is started, and external air passing through the heating device (102) is supplied to the interlayer air duct;
if the air outlet temperature T of the heating air supply structure (1) is required c2 '＜T c ≤T c1 When' is carried out, a heating device (102) in the heating air supply structure (1) is stopped, and mixed external air and return air in a refrigerating chamber of the refrigerator are supplied to the interlayer air duct;
if the air outlet temperature T of the heating air supply structure (1) is required c ≤T c2 And when' the heating device (102) in the heating air supply structure (1) is stopped, and the return air in the refrigerating chamber of the refrigerator is supplied to the interlayer air duct.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5729997A (en) * | 1996-02-29 | 1998-03-24 | General Electric Company | Refrigerator air circulation system |
| JP2006029650A (en) * | 2004-07-14 | 2006-02-02 | Shonan Shimadzu Kk | Thermostat |
| CN104930785A (en) * | 2015-06-17 | 2015-09-23 | 合肥华凌股份有限公司 | Refrigerator |
| CN107166868A (en) * | 2017-06-29 | 2017-09-15 | 青岛海尔股份有限公司 | The control system and control method of refrigerator |
| CN107514855A (en) * | 2017-07-14 | 2017-12-26 | 青岛海尔电冰箱有限公司 | Refrigerating device |
| CN206890963U (en) * | 2017-06-09 | 2018-01-16 | 合肥华凌股份有限公司 | Cold storage plant |
| CN110513957A (en) * | 2018-05-22 | 2019-11-29 | 青岛海尔股份有限公司 | Refrigerator and its control method |
| KR20200112605A (en) * | 2019-03-22 | 2020-10-05 | 엘지전자 주식회사 | Refrigerator |
| CN214250298U (en) * | 2020-11-26 | 2021-09-21 | 青岛海尔电冰箱有限公司 | Drawer assembly for refrigerator and refrigerator |
| CN113669996A (en) * | 2021-09-15 | 2021-11-19 | 珠海格力电器股份有限公司 | Preservation drawer, refrigerator with preservation drawer and temperature and humidity control method |
| JP2022032329A (en) * | 2020-08-11 | 2022-02-25 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
| CN114370738A (en) * | 2022-02-28 | 2022-04-19 | 海信（山东）冰箱有限公司 | Refrigerator and condensation prevention control method for drawer of refrigerator |
-
2022
- 2022-06-09 CN CN202210643980.1A patent/CN115143719B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5729997A (en) * | 1996-02-29 | 1998-03-24 | General Electric Company | Refrigerator air circulation system |
| JP2006029650A (en) * | 2004-07-14 | 2006-02-02 | Shonan Shimadzu Kk | Thermostat |
| CN104930785A (en) * | 2015-06-17 | 2015-09-23 | 合肥华凌股份有限公司 | Refrigerator |
| CN206890963U (en) * | 2017-06-09 | 2018-01-16 | 合肥华凌股份有限公司 | Cold storage plant |
| CN107166868A (en) * | 2017-06-29 | 2017-09-15 | 青岛海尔股份有限公司 | The control system and control method of refrigerator |
| CN107514855A (en) * | 2017-07-14 | 2017-12-26 | 青岛海尔电冰箱有限公司 | Refrigerating device |
| CN110513957A (en) * | 2018-05-22 | 2019-11-29 | 青岛海尔股份有限公司 | Refrigerator and its control method |
| KR20200112605A (en) * | 2019-03-22 | 2020-10-05 | 엘지전자 주식회사 | Refrigerator |
| JP2022032329A (en) * | 2020-08-11 | 2022-02-25 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
| CN214250298U (en) * | 2020-11-26 | 2021-09-21 | 青岛海尔电冰箱有限公司 | Drawer assembly for refrigerator and refrigerator |
| CN113669996A (en) * | 2021-09-15 | 2021-11-19 | 珠海格力电器股份有限公司 | Preservation drawer, refrigerator with preservation drawer and temperature and humidity control method |
| CN114370738A (en) * | 2022-02-28 | 2022-04-19 | 海信（山东）冰箱有限公司 | Refrigerator and condensation prevention control method for drawer of refrigerator |
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|---|---|
| CN115143719A (en) | 2022-10-04 |
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