CN116007270A - Refrigerating and freezing device - Google Patents
Refrigerating and freezing device Download PDFInfo
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- CN116007270A CN116007270A CN202111234492.7A CN202111234492A CN116007270A CN 116007270 A CN116007270 A CN 116007270A CN 202111234492 A CN202111234492 A CN 202111234492A CN 116007270 A CN116007270 A CN 116007270A
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- 238000007710 freezing Methods 0.000 title claims abstract description 27
- 230000008014 freezing Effects 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 238000005057 refrigeration Methods 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 9
- 230000003020 moisturizing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract description 3
- 235000012055 fruits and vegetables Nutrition 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241001122767 Theaceae Species 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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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
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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
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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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- 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 relates to a refrigeration and freezing device, which comprises a storage compartment, an evaporator and further comprises: the storage device is arranged in the storage compartment and is provided with a device air supply opening and a device air return opening, and the device air return opening is exposed in the storage compartment; an air supply damper disposed at or on an airflow path between the evaporator and the device air supply port and configured to be controllably opened to allow cooling airflow into the storage device or controllably closed to prevent cooling airflow from entering the storage device; the circulating air path is arranged outside the storage device in a surrounding mode, and a part of sections of the circulating air path are positioned outside the air return port of the device; and a circulating fan arranged in the circulating air path and configured to be controlled to be started when the air supply air door is closed so as to enable air flow to circulate along the circulating air path, thereby forming an air curtain outside the device air return opening, wherein the air curtain forms a barrier between the device air return opening and the storage compartment so as to prevent humidity in the storage device from being influenced by the storage compartment.
Description
Technical Field
The invention relates to a refrigeration technology, in particular to a refrigeration device.
Background
As the refrigerating and freezing devices such as refrigerators go deep into people's daily lives, users have increasingly high demands on the quality of food preservation of such refrigerating and freezing devices. For example, users want to set up a region with higher water content in the refrigerating and freezing device, which is specially used for storing fruits and vegetables, so as to improve the fresh-keeping effect of fruits and vegetables and prevent the water loss of fruits and vegetables. As another example, users also want to provide areas in the refrigerator-freezer that are dedicated to storing dry goods such as rare products and tea leaves, to prevent the dry goods from being affected with moisture and spoiling. For another example, in order to avoid the waste of the storage space, the user also wants to switch a certain area in the refrigerating and freezing device between a moisturizing mode for storing fruits and vegetables and a drying mode for storing dried goods, so as to flexibly select the functional mode thereof, thereby selectively storing the food materials with different humidity requirements.
In order to meet the above-mentioned needs of users, drawers with adjustable humidity are arranged in the refrigerating chamber of the refrigerating and freezing device in the prior art. Such a refrigerating and freezing apparatus generally performs a drying function by inputting a cooling air flow flowing through an evaporator into a drawer, and accordingly, the drawer is provided with an air supply port and an air return port. When the drawer needs to be moisturized, cooling air flow is not needed in the drawer, at the moment, the cooling air flow is prevented from continuously entering the drawer by closing an air supply air door at an air supply opening in the prior art, however, an air return opening of the drawer is ignored, the air return opening of the drawer is directly exposed to the refrigerating chamber, and the condition that the air return of the refrigerating chamber enters the drawer through the air return opening of the drawer to influence the temperature and humidity in the drawer exists.
Disclosure of Invention
It is an object of the present invention to overcome at least one of the drawbacks of the prior art by providing a refrigerated freezer having an independent storage space with humidity of the storage space unaffected by the compartment.
Another object of the present invention is to reduce the cost of the refrigerator and simplify the control logic of the refrigerator.
In order to achieve the above object, the present invention provides a refrigerating and freezing apparatus including a storage compartment for storing articles, an evaporator for providing a cooling air flow, further comprising:
a storage device arranged in the storage compartment and provided with a device air supply port for air flow to flow into the storage compartment and a device air return port for air flow to flow out of the storage compartment, wherein the device air return port is exposed in the storage compartment;
an air supply damper disposed at the device air supply port or on an air flow path between the evaporator and the device air supply port and configured to be controllably opened to allow cooling air flow into the storage device or controllably closed to prevent cooling air flow into the storage device;
the circulating air path is arranged outside the storage device in a surrounding mode, and a part of sections of the circulating air path are positioned outside the air return opening of the storage device; and
and the circulating fan is arranged in the circulating air path and is configured to be controlled to be started when the air supply air door is closed so as to promote air flow to circulate along the circulating air path, thereby forming an air curtain outside the air return opening of the device.
Optionally, the circulating fan is arranged so that the airflow direction of the formed air curtain is the same as the airflow direction in the storage compartment outside the air curtain.
Optionally, the device air supply opening is formed at the rear side of the storage device, and the device air return opening is formed at the front side of the storage device.
Optionally, the circulating air path surrounds the storage device along the front-back direction and the vertical direction, and comprises a first air path section positioned above the storage device, a second air path section positioned in front of the storage device, a third air path section positioned below the storage device and a fourth air path section positioned behind the storage device, wherein the first air path section, the second air path section, the third air path section and the fourth air path section are sequentially communicated; wherein the method comprises the steps of
The second air passage section is positioned in front of the device air return opening.
Optionally, the storage compartment is provided with a compartment air supply opening and a compartment air return opening, and the compartment air return opening is adjacent to the bottom of the storage compartment; and is also provided with
The airflow flowing direction of the storage compartment in the area in front of the second wind section is vertically downward, and the circulating fan is configured to promote airflow to flow through the second wind section in the vertically downward direction.
Optionally, the circulating air route is defined by an inner coaming and an outer coaming which are arranged inside and outside; and is also provided with
The front parts of the inner coaming and the outer coaming are provided with notches, so that the device air return opening is communicated with the storage compartment through the notches of the inner coaming and the outer coaming.
Optionally, the whole device air return opening extends along the vertical direction; and is also provided with
The positions of the notches of the inner coaming and the outer coaming in the vertical direction and the lengths of the notches of the inner coaming and the outer coaming in the vertical direction are respectively matched with the positions and the lengths of the air return opening of the device in the vertical direction.
Optionally, a moisture permeable membrane allowing moisture therein to be outwardly penetrated is arranged at the top of the storage device; and is also provided with
The inner coaming and the top of the storage device are arranged at intervals to form a moisture permeable space above the moisture permeable membrane; or, the upper section of the inner-layer coaming is adjacent to or close to the top of the storage device, and a perspective window above the moisture permeable film is formed in the upper section of the inner-layer coaming so as to allow the moisture permeable film to be exposed in the circulating air path.
Optionally, the storage device has a drying mode and a moisturizing mode with different preset humidity ranges; and is also provided with
The supply air damper is configured to be controllably opened or closed to selectively allow cooling air flow generated by the evaporator into the storage device when the storage device is in a dry mode, and to be controllably closed to prevent the cooling air flow from flowing into the storage device when the storage device is in a wet mode.
Optionally, the evaporator is disposed in an evaporator chamber located behind the storage compartment; and is also provided with
The evaporator chamber is communicated with the storage chamber through a chamber air supply duct and is communicated with the storage device through a device air supply duct, the chamber air supply duct and the device air supply duct are mutually independent, and the air supply air door is arranged at the end part of the device air supply duct, which is adjacent to the evaporator chamber.
The refrigerating and freezing device comprises a storage compartment, an evaporator, a storage device arranged in the storage compartment and an air supply air door for selectively allowing cooling air flow to enter the storage device, so that independent storage space with adjustable humidity is realized in the storage device through the opening and closing control of the air supply air door. In particular, the refrigeration and freezing device further comprises a circulating air path and a circulating fan, wherein the circulating air path is arranged outside the storage device in a surrounding mode, and a part section of the circulating air path is arranged outside the device air return opening of the storage device (namely, one side of the device air return opening facing the storage compartment). When the air supply air door is closed, cooling air flow does not enter the storage device any more, air flow does not flow out of the air return opening of the device any more, and air flow in the storage compartment is not expected to enter the storage device through the air return opening of the device. At this time, the circulating fan is started to form an air curtain at the outer side of the air return opening of the device, the air curtain forms a barrier between the air return opening of the device and the storage compartment, and no matter whether the storage compartment is supplying air or not for refrigeration, air in the storage compartment can not enter the storage device through the air return opening of the device, so that the humidity of a storage space with adjustable humidity defined in the storage device is not influenced by the storage compartment.
Further, the inventors have recognized that a return air door may be added at the device return air opening in the face of the problem of how to avoid the effect of the storage compartment on the humidity within the storage device through the device return air opening. However, the addition of the return air door not only increases the cost, but also has smaller volume, large assembly difficulty and influence on the production efficiency, and most importantly, the return air door is precisely controlled, so that the burden of control logic is increased. For this reason, the invention provides a solution completely different from the principle of the air door. The invention uses the independent circulating air path and the circulating fan to prevent the air in the storage room from flowing to the device air return opening in a mode of forming an air curtain outside the device air return opening, and the design thought is novel and the effect is good.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic block diagram of a refrigeration and freezer according to one embodiment of the invention;
FIG. 2 is a schematic enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic block diagram of a circulating fan in an operational state according to one embodiment of the present invention;
FIG. 4 is a schematic block diagram of a circulating fan in a stopped state according to one embodiment of the present invention;
fig. 5 is a schematic view of a part of a refrigerating and freezing apparatus according to another embodiment of the present invention.
Detailed Description
The present invention provides a refrigerating and freezing apparatus, fig. 1 is a schematic structural view of the refrigerating and freezing apparatus according to an embodiment of the present invention, and fig. 2 is a schematic enlarged view of a portion a in fig. 1. Referring to fig. 1 and 2, the refrigerating and freezing apparatus 1 of the present invention includes a cabinet 10 and an evaporator 50 for providing a cooling air flow, and a storage compartment 11 is defined in the cabinet 10. Specifically, the storage compartment 11 is preferably a refrigerating compartment having a refrigerating storage environment, and may be another compartment capable of preserving freshness, such as a temperature changing compartment.
The refrigeration and freezer 1 also includes a storage apparatus 20 and a supply air damper 30. The storage device 20 is disposed in the storage compartment 11 and has a device air supply opening 21 for the flow of air therein and a device air return opening 22 for the flow of air therein, the device air return opening 22 being exposed to the storage compartment 11, that is, the device air return opening 22 being in communication with the storage compartment 11. The supply air damper 30 is disposed at the device supply air port 21 or in the airflow path between the evaporator 50 and the device supply air port 21 and is configured to be controllably opened to allow cooling airflow into the storage device 20 or to be controllably closed to prevent cooling airflow into the storage device 20. When the air supply damper 30 is opened, the cooling air flow generated by the evaporator 50 flows into the storage device 20, and the original air in the storage device 20 flows out through the device air return port 22 and returns to the evaporator 50 through the storage compartment 11, thereby replacing the air in the storage device 20. Because the air flow passes through the evaporator 50 with a lower temperature, the moisture in the air flow will condense on the evaporator 50, so that the temperature and humidity of the formed cooling air flow are lower, and thus a low-temperature and low-humidity dry storage space can be formed in the storage device 20 after the cooling air flow displaces the air in the storage device 20. When the air supply air door 30 is closed, the cooling air flow can be prevented from flowing into the storage device 20, and if the storage device 20 stores dry goods such as precious products and tea leaves, the closing of the air supply air door 30 can prevent the humidity in the storage device 20 from further reducing, so that ineffective dehumidification or excessive air drying of the dry goods can be avoided; if the storage device 20 stores fruits and vegetables with larger water content, the fruits and vegetables volatilize a large amount of water after the air supply damper 30 is closed, so that a high-humidity space with higher humidity is formed in the storage device 20, and the storage of the fruits and vegetables is facilitated. Thus, the opening and closing of the air supply air door 30 can be controlled to realize independent storage space with adjustable humidity in the storage device 20.
In particular, the refrigeration and freezer 1 also includes a circulating air path 40 and a circulating fan 60. Fig. 3 is a schematic structural view of a circulation fan in an operating state according to an embodiment of the present invention, and fig. 4 is a schematic structural view of the circulation fan in a stopped state according to an embodiment of the present invention, arrows in fig. 3 and 4 indicating a general flow direction of air. The circulating air path 40 is enclosed outside the storage device 20, and a part of the circulating air path 40 is located outside the device return air opening 22. The circulation fan 60 is disposed in the circulation air path 40 and is configured to be controllably activated when the supply air damper 30 is closed to cause the air flow to circulate along the circulation air path 40 to form an air curtain outside the device return air opening 22. The outside of the device air return port 22 is the side of the device air return port 22 facing the storage compartment 11, and the inside opposite to the outside of the device air return port 22 is the side of the device air return port 22 facing the inside of the storage device 20.
When the air supply damper 30 is closed, the cooling air flow no longer enters the storage device 20, no air flow flows out of the device air return opening 22, and air flow in the storage compartment 11 is not expected to enter the storage device 20 through the device air return opening 22. At this time, the circulating fan 60 is turned on to form an air curtain outside the device air return opening 22, and the air curtain forms a barrier between the device air return opening 22 and the storage compartment 11, so that no matter whether the storage compartment 11 is supplying air or not, air in the storage compartment 11 will not enter the storage device 20 through the device air return opening 22, and therefore, the humidity of the storage space with adjustable humidity defined in the storage device 20 is not affected by the storage compartment 11.
In the face of the problem of how to avoid the effect of the storage compartment 11 on the humidity within the storage device 20 through the device return air opening 22, the inventors have appreciated that a return air door may be added at the device return air opening 22. However, the addition of the return air door not only increases the cost, but also has smaller volume, large assembly difficulty and influence on the production efficiency, and most importantly, the return air door is precisely controlled, so that the burden of control logic is increased. For this reason, the invention provides a solution completely different from the principle of the air door. The invention uses the independent circulating air path 40 and the circulating fan 60 to prevent the air in the storage compartment 11 from flowing to the device air return opening 22 by forming an air curtain outside the device air return opening 11, and the design thought is novel and the effect is good.
In some embodiments, the storage device 20 may have a drying mode and a moisturizing mode with different preset humidity ranges. The supply damper 30 is configured to be controllably opened or closed to selectively allow cooling air flow generated by the evaporator 50 into the storage device 20 when the storage device 20 is in the dry mode, and to be controllably closed to prevent cooling air flow into the storage device 20 when the storage device 20 is in the wet mode. When the storage device 20 is in the drying mode, the air supply damper 30 is opened to cool the air flowing into the storage device 20, and the humidity in the storage device 20 is reduced. When the humidity in the storage device 20 is reduced to the minimum humidity threshold corresponding to the drying mode, the air supply damper 30 may be closed, so that the whole cooling air flows to the storage compartment 11, and the refrigerating effect of the storage compartment 11 is ensured. When the humidity in the storage device 20 rises above the maximum humidity threshold corresponding to the drying mode, the air supply damper 30 may be opened again. When the storage device 20 is in the moisturizing mode, the air supply damper 30 is closed to form a relatively closed space in the storage device 20, and the moisture volatilized by the fruits and vegetables is utilized to improve the humidity in the storage device 20, so that the fresh-keeping effect of the fruits and vegetables is ensured.
In some embodiments, the circulation fans 60 are arranged such that the airflow of the formed air curtain flows in the same direction as the airflow in the storage compartments 11 outside the air curtain. It will be appreciated that, since a portion of the circulation duct 40 is located outside the device return air opening 22, the formed air curtain is also located outside the device return air opening 22, i.e. the device return air opening 22 is located inside the air curtain, and the side of the air curtain facing away from the device return air opening 22 is the outside of the air curtain, which is still the space of the storage compartment 11. That is, when the air in the storage compartment 11 is cooled, the air flow is formed in the storage compartment 11, and the air flow direction outside the air curtain in the storage compartment 11 is the same as the air flow direction of the air curtain, so that the phenomenon that the air flow forming the air curtain and the air flow in the storage compartment 11 generate countercurrent or cross mixed flow to influence the normal flow of the two air flows can be avoided, and the normal formation of the air curtain and the normal air flow in the storage compartment 11 are ensured.
In some embodiments, the device air supply opening 21 is formed at the rear side of the storage device 20 to facilitate the input of cooling air into the storage device 20 and to simplify the duct structure. Preferably, the device air supply opening 21 may be formed at an upper portion of the rear side of the storage device 20 so that the cooling air flow is more uniformly distributed in the storage device 20.
In the prior art, the device air return opening 22 is also generally formed at the rear side of the storage device 20, so that even if the air door is disposed at the device air return opening 22, the air door is not exposed to the front side of the storage device 20, and the aesthetic appearance is not affected. However, since the device air supply opening 21 is also located at the rear side of the storage device 20 and is relatively close to the device air return opening 22, the cooling air flowing in through the device air supply opening 21 may flow out of the device air return opening 22 after flowing through only the rear region of the storage device 20, so that the humidity in the front region of the storage device 20 is not regulated.
Therefore, the device air return opening 22 of the embodiment of the present invention is formed at the front side of the storage device 20, that is, the device air return opening 22 and the device air supply opening 21 are respectively disposed at two opposite sides of the storage device 20, so that the cooling air flowing in through the device air supply opening 21 flows through most of the areas in the storage device 20 from back to front and then flows out of the device air return opening 22, thereby ensuring that each area in the storage device 20 has relatively uniform humidity. In addition, in the invention, the air curtain is formed outside the device air return opening 22 to prevent the air in the storage compartment 11 from entering the storage device 20, so that the structure such as an air door is not required to be arranged at the device air return opening 22, and the appearance of the refrigeration and freezing device 1 is not affected.
In some embodiments, the circulating air path 40 surrounds the storage device 20 in the front-rear direction and the vertical direction, and includes a first air path section 41 located above the storage device 20, a second air path section 42 located in front of the storage device 20, a third air path section 43 located below the storage device 20, and a fourth air path section 44 located behind the storage device 20, which are sequentially communicated, forming a closed loop air path structure. The second air path section 42 is located in front of the device air return opening 22, and when the circulating fan 60 is operated, an air curtain is formed in the second air path section 42 to isolate the device air return opening 22 from the storage compartment 11. When the circulation fan 60 stops operating, an air curtain is not formed in the second air path section 42, and the device air return opening 22 is communicated with the storage compartment 11 through the second air path section 42.
Further, the storage compartment 11 has a compartment supply air opening 111 and a compartment return air opening 112, the compartment return air opening 112 being adjacent to the bottom of the storage compartment 11. The direction of flow of the air flow in the area of the storage compartment 11 located in front of the second wind section 42 is vertically downward, and the circulation fan 60 is configured to cause the air flow to flow through the second wind section 42 in a vertically downward direction.
In some embodiments, the circulating air path 40 is defined by inner and outer shroud 45, 46 disposed inwardly and outwardly. The front portions of the inner shroud 45 and the outer shroud 46 are provided with notches so that the device return air opening 22 communicates with the storage compartment 11 through the notches of the inner shroud 45 and the outer shroud 46. It will be appreciated that the gap of the inner shroud 45 and the gap of the outer shroud 46 define the second wind path segment 42 therebetween. When the circulating fan 60 is in a stopped state, the air flow flowing out from the device air return opening 22 can flow to the storage compartment 11 through the notch, and then returns to the evaporator 40 through the storage compartment 11. When the circulating fan 60 is in an operating state, an air curtain is formed between the notch of the inner shroud 45 and the notch of the outer shroud 46.
Further, the device return air opening 22 extends in the vertical direction as a whole. The vertical positions of the notches of the inner coaming 45 and the outer coaming 46 and the vertical lengths of the notches are matched with the vertical positions and the vertical lengths of the device air return openings 22 respectively. Therefore, any area of the device air return opening 22 can be exposed in the storage compartment 11, and when the circulating fan 60 operates, an air curtain can be formed on the outer side of any position of the device air return opening 22.
Specifically, the device air return opening 22 may be a strip air opening extending in the vertical direction, or may include a plurality of small through holes arranged in the vertical direction.
In some embodiments, the top of the storage device 20 is provided with a moisture permeable membrane 23 that allows moisture therein to pass outwardly. When the storage device 20 is in the moisturizing mode and the humidity in the storage device 20 exceeds the maximum humidity threshold corresponding to the moisturizing mode, the moisture in the storage device 20 is transmitted outwards through the moisture-permeable membrane 23, so as to ensure that the humidity in the storage device 20 is proper. Further, the humidity within the storage device 20 may be obtained by a humidity sensor disposed therein.
To ensure that the outwardly penetrating moisture is effectively dissipated, a certain space needs to be left above the moisture permeable membrane 23, for which purpose, in some embodiments, an inner shroud 45 is provided at a distance from the top of the storage device 20 to form a moisture permeable space above the moisture permeable membrane 23.
However, even if the moisture permeable film 23 is provided, the humidity in the storage device 20 may be high and even condensation may be generated. Prior to the present application, those skilled in the art generally considered that the moisture permeability of the moisture permeable film 23 was not satisfied and the moisture permeable film 23 was replaced, however, the problem of condensation was not solved effectively. The applicant has realized that in order to preserve as much as possible a sufficiently large effective storage space in the storage compartment 11, the size or height of the aforementioned vapor-permeable space has certain limitations, resulting in a slower flow rate of the air flow in the vapor-permeable space. When the humidity inside the storage device 20 is high, the humidity outside the moisture permeable membrane 23 also has high humidity due to low airflow speed, so that the humidity inside and outside the moisture permeable membrane 23 is balanced, and the moisture permeable membrane 23 loses the moisture permeable capability.
To this end, the invention also provides a more preferred embodiment. Fig. 5 is a schematic view of a part of a refrigerating and freezing apparatus according to another embodiment of the present invention. In a preferred embodiment, the upper section of the inner shroud 45 is positioned adjacent or immediately adjacent the top of the storage device 20, and the upper section of the inner shroud 45 is provided with a see-through window 451 positioned over the moisture permeable membrane 23 to allow the moisture permeable membrane 23 to be exposed within the circulating air path 40. Therefore, when the storage device 20 is in the moisturizing mode, the air supply air door 30 is closed, the circulating fan 60 is started to run, continuous flowing air flow is formed in the circulating air passage 40, moisture penetrating out of the moisture permeable membrane 23 can be timely dispersed to other areas, moisture is prevented from being gathered in the space above the moisture permeable membrane 23, and the influence of overhigh air humidity outside the moisture permeable membrane 23 on the moisture permeable effect of the moisture permeable membrane 23 is avoided.
In some embodiments, the evaporator 50 is disposed within the evaporator chamber 12 behind the storage compartment 11. The evaporator chamber 12 communicates with the storage chamber 11 through a chamber air supply duct 13 and communicates with the storage device 20 through a device air supply duct 14, the chamber air supply duct 13 and the device air supply duct 14 are provided independently of each other, and the air supply damper 30 is provided at an end portion of the device air supply duct 14 adjacent to the evaporator chamber 12. On the other hand, the air supply of the storage device 20 and the air supply of the storage compartment 11 are not affected, and when the air supply of the storage device 20 is needed, whether the storage compartment 11 is in a refrigerating state, whether the refrigeration is needed, the amount of the refrigerating capacity and the like are not needed, that is, the air supply of the storage device 20 does not affect the temperature of the storage compartment 11; on the other hand, all the air flows sent out through the device air supply duct 14 can flow to the storage device 20, and all the air flows sent out through the compartment air supply duct 13 can flow to the storage compartment 11, so that the air supply amount of the storage device 20 when air supply is needed and the air supply amount of the storage compartment 11 when refrigeration is needed are increased, and the humidity adjustment efficiency of the storage device 20 in a drying mode and the refrigeration efficiency of the storage compartment 11 are improved.
In some embodiments, the number of the storage devices 20 may be one, two or more, and when the number of the storage devices 20 is two, the two storage devices 20 may be disposed at the bottom of the storage compartment 11 side by side along the lateral direction.
It will be appreciated by those skilled in the art that the refrigeration and freezer 1 of the present invention includes not only refrigerators but also storage devices for refrigeration, freezing or other storage functions, such as freezers, coolers, etc.
It will be further understood by those skilled in the art that terms such as "upper", "lower", "front", "rear", "top", "bottom", etc. used in the embodiments of the present invention are with reference to the actual use state of the refrigeration and freezer 1, and these terms are merely for convenience of description and understanding of the technical solution of the present invention, and do not indicate or imply that the devices or components referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (10)
1. A refrigeration and freezer comprising a storage compartment for storing items, an evaporator for providing a cooling air flow, further comprising:
a storage device arranged in the storage compartment and provided with a device air supply port for air flow to flow into the storage compartment and a device air return port for air flow to flow out of the storage compartment, wherein the device air return port is exposed in the storage compartment;
an air supply damper disposed at the device air supply port or on an air flow path between the evaporator and the device air supply port and configured to be controllably opened to allow cooling air flow into the storage device or controllably closed to prevent cooling air flow into the storage device;
the circulating air path is arranged outside the storage device in a surrounding mode, and a part of sections of the circulating air path are positioned outside the air return opening of the storage device; and
and the circulating fan is arranged in the circulating air path and is configured to be controlled to be started when the air supply air door is closed so as to promote air flow to circulate along the circulating air path, thereby forming an air curtain outside the air return opening of the device.
2. A refrigerating and freezing apparatus according to claim 1, wherein,
the circulating fan is arranged so that the airflow flowing direction of the formed air curtain is the same as the airflow flowing direction in the storage compartment outside the air curtain.
3. A refrigerating and freezing apparatus according to claim 2, wherein,
the device air supply outlet is formed at the rear side of the storage device, and the device air return outlet is formed at the front side of the storage device.
4. A refrigerating and freezing apparatus according to claim 3, wherein,
the circulating air passage surrounds the storage device along the front-back direction and the vertical direction and comprises a first air passage section positioned above the storage device, a second air passage section positioned in front of the storage device, a third air passage section positioned below the storage device and a fourth air passage section positioned behind the storage device, wherein the first air passage section, the second air passage section, the third air passage section and the fourth air passage section are sequentially communicated; wherein the method comprises the steps of
The second air passage section is positioned in front of the device air return opening.
5. A refrigerating and freezing apparatus as recited in claim 4, wherein,
the storage compartment is provided with a compartment air supply opening and a compartment air return opening, and the compartment air return opening is adjacent to the bottom of the storage compartment; and is also provided with
The airflow flowing direction of the storage compartment in the area in front of the second wind section is vertically downward, and the circulating fan is configured to promote airflow to flow through the second wind section in the vertically downward direction.
6. A refrigerating and freezing apparatus according to claim 3, wherein,
the circulating air route is defined by an inner coaming and an outer coaming which are arranged inside and outside the circulating air route; and is also provided with
The front parts of the inner coaming and the outer coaming are provided with notches, so that the device air return opening is communicated with the storage compartment through the notches of the inner coaming and the outer coaming.
7. A refrigerating and freezing apparatus as recited in claim 6, wherein,
the whole air return opening of the device extends along the vertical direction; and is also provided with
The positions of the notches of the inner coaming and the outer coaming in the vertical direction and the lengths of the notches of the inner coaming and the outer coaming in the vertical direction are respectively matched with the positions and the lengths of the air return opening of the device in the vertical direction.
8. A refrigerating and freezing apparatus as recited in claim 6, wherein,
the top of the storage device is provided with a moisture permeable film which allows moisture in the storage device to be outwards penetrated out; and is also provided with
The inner coaming and the top of the storage device are arranged at intervals to form a moisture permeable space above the moisture permeable membrane; or, the upper section of the inner-layer coaming is adjacent to or close to the top of the storage device, and a perspective window above the moisture permeable film is formed in the upper section of the inner-layer coaming so as to allow the moisture permeable film to be exposed in the circulating air path.
9. The refrigeration and chiller of claim 1 wherein the storage means has a drying mode and a moisturizing mode with a predetermined humidity range being different; and is also provided with
The supply air damper is configured to be controllably opened or closed to selectively allow cooling air flow generated by the evaporator into the storage device when the storage device is in a dry mode, and to be controllably closed to prevent the cooling air flow from flowing into the storage device when the storage device is in a wet mode.
10. A refrigerating and freezing apparatus according to claim 1, wherein,
the evaporator is arranged in an evaporator chamber positioned behind the storage compartment; and is also provided with
The evaporator chamber is communicated with the storage chamber through a chamber air supply duct and is communicated with the storage device through a device air supply duct, the chamber air supply duct and the device air supply duct are mutually independent, and the air supply air door is arranged at the end part of the device air supply duct, which is adjacent to the evaporator chamber.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234492.7A CN116007270A (en) | 2021-10-22 | 2021-10-22 | Refrigerating and freezing device |
| PCT/CN2022/121347 WO2023065979A1 (en) | 2021-10-22 | 2022-09-26 | Refrigerating and freezing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234492.7A CN116007270A (en) | 2021-10-22 | 2021-10-22 | Refrigerating and freezing device |
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| CN116007270A true CN116007270A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111234492.7A Pending CN116007270A (en) | 2021-10-22 | 2021-10-22 | Refrigerating and freezing device |
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| CN (1) | CN116007270A (en) |
| WO (1) | WO2023065979A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050906B (en) * | 2006-04-06 | 2011-09-28 | 海尔集团公司 | Circulation air path of air cooling type refrigerator |
| JP4703692B2 (en) * | 2008-07-11 | 2011-06-15 | 株式会社東芝 | Air conditioning control system, air supply switching controller used therefor, and air conditioning control method |
| CN105716349B (en) * | 2015-03-31 | 2019-01-25 | 海信容声(广东)冷柜有限公司 | A kind of refrigerator and its control method |
| CN105674658B (en) * | 2015-03-31 | 2018-07-31 | 海信容声(广东)冷柜有限公司 | A kind of refrigerator and its control method |
| CN205690797U (en) * | 2016-06-24 | 2016-11-16 | 合肥美菱股份有限公司 | A kind of wind cooling refrigerator |
| CN207247666U (en) * | 2017-03-20 | 2018-04-17 | 青岛海尔电冰箱有限公司 | A kind of energy-saving refrigerator |
| CN209054826U (en) * | 2018-11-17 | 2019-07-02 | 中山市雅淇制冷设备有限公司 | A kind of refrigerator with the double-deck circulation air path |
| CN111365927A (en) * | 2018-12-26 | 2020-07-03 | 青岛海尔股份有限公司 | Refrigerator with a door |
| CN112066616B (en) * | 2019-06-11 | 2023-10-13 | 青岛海尔特种电冰柜有限公司 | Refrigerator with air curtain function |
| CN113494811A (en) * | 2020-04-03 | 2021-10-12 | 青岛海尔电冰箱有限公司 | Refrigerator and control method thereof |
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2021
- 2021-10-22 CN CN202111234492.7A patent/CN116007270A/en active Pending
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| WO2023065979A1 (en) | 2023-04-27 |
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