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CN108278825B - Refrigerator with a door - Google Patents

Refrigerator with a door Download PDF

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Publication number
CN108278825B
CN108278825B CN201711489435.7A CN201711489435A CN108278825B CN 108278825 B CN108278825 B CN 108278825B CN 201711489435 A CN201711489435 A CN 201711489435A CN 108278825 B CN108278825 B CN 108278825B
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CN
China
Prior art keywords
water
air duct
fan
air
rear wall
Prior art date
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Application number
CN201711489435.7A
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Chinese (zh)
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CN108278825A (en
Inventor
曹东强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Co Ltd filed Critical Qingdao Haier Co Ltd
Priority to CN201711489435.7A priority Critical patent/CN108278825B/en
Publication of CN108278825A publication Critical patent/CN108278825A/en
Priority to PCT/CN2018/125055 priority patent/WO2019129241A1/en
Application granted granted Critical
Publication of CN108278825B publication Critical patent/CN108278825B/en
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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
    • 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
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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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  • 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 a refrigerator which comprises an inner container, an air duct, an evaporator and a fan, wherein a storage compartment is defined in the inner container, the air duct extends from bottom to top along the rear wall of the inner container in the inner container, the evaporator is arranged on the outer side of the rear wall of the inner container and is configured to indirectly cool air in the air duct, and the fan is arranged in the air duct and is positioned at the lower part of the air duct and is configured to promote the air in the air duct cooled by the evaporator to flow into the storage compartment. According to the refrigerator, the fan is arranged at the lower part of the air duct, the evaporator is arranged on the outer side of the rear wall of the inner container, and wet air exchanges heat with the wall surface of the rear wall of the inner container when passing through the evaporator refrigerating area of the air duct.

Description

Refrigerator with a door
Technical Field
The invention relates to the technical field of household appliances, in particular to a refrigerator.
Background
The blower fan is an essential part of the air-cooled refrigerator, and functions to improve the heat exchange efficiency of the evaporator by forced convection. In order to prevent the defrosting water in the air duct from dropping on the fan, generally, the fan is arranged at the upper part of the evaporator, however, the fan and the air duct structure of the refrigerator with the structure occupy a part of the volume of the compartment, and the volume ratio of the refrigerator is reduced; secondly, the fan protrudes out of the air duct structure, so that the appearance is not attractive; in addition, the water outlet at the lower part of the air duct is far away from the fan, the return air is far away from the water outlet after being blown into the air duct from the bottom of the air duct, and the water outlet has certain icing risk; and the air flow rate passing through the upper part of the water accumulation groove is low, so that the humidifying effect is poor.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a refrigerator that overcomes or at least partially solves the above problems.
A further object of the present invention is to improve the humidifying effect of a refrigerator and to increase the capacity of the refrigerator.
The present invention provides a refrigerator, including:
the inner container is internally provided with a storage chamber;
the air duct extends from bottom to top along the rear wall of the inner container in the inner container;
the evaporator is arranged on the outer side of the rear wall of the inner container and is configured to indirectly cool the air in the air duct;
and the fan is arranged in the air duct and positioned at the lower part of the air duct, and is configured to promote the air in the air duct cooled by the evaporator to flow into the storage compartment.
Optionally, a water collecting groove which is sunken downwards is formed in the position, corresponding to the air duct, of the bottom wall of the inner container;
a water outlet is formed at the bottom of the water accumulating tank so as to discharge the defrosting water in the air duct.
Optionally, the water accumulation groove is a trapezoidal groove, and the section of the water accumulation groove parallel to the rear wall of the inner container is trapezoidal;
the upper edge of the water accumulating tank is a long trapezoidal edge, and the lower edge of the water accumulating tank is a short trapezoidal edge;
the water outlet is formed on the lower end surface of the water collecting tank.
Optionally, the fan is a centrifugal fan, and the fan is positioned at the upper part of the water outlet;
water retaining blocks protruding upwards are respectively formed on the two inclined end surfaces of the water accumulating tank at positions close to the water outlet; and is
Each water blocking block extends to the front end face of the water collecting tank from the rear wall of the inner container, so that a water collecting area is formed by the water blocking blocks and the inclined end faces where the water blocking blocks are located, and water in the water collecting area flows into the water outlet after passing over the water blocking blocks.
Optionally, the upper end surface of the water blocking block is lower than the upper edge of the front end surface of the water collecting groove, so that water in the water collecting area is prevented from permeating into the storage compartment through the upper edge of the front end surface of the water collecting groove.
Optionally, the refrigerator further comprises:
the air duct cover plate is arranged on the rear side of the storage chamber and defines an air duct together with the rear wall of the inner container.
Optionally, the fan is a centrifugal fan;
an air outlet communicated with the storage compartment is formed at the upper part and/or the side part of the air duct cover plate;
an air return opening communicated with the storage chamber is formed at the position, corresponding to the air inlet of the fan, of the lower part of the air duct cover plate.
Optionally, the refrigerator further comprises:
the fan cover is arranged on the wall surface of the air duct cover plate facing to the rear wall of the inner container;
the fan is arranged on the fan cover and is positioned in a space between the fan cover and the air duct cover plate;
the upper end of the fan cover is provided with a shielding plate protruding towards the direction of the air duct cover plate;
the shielding plate and the air duct cover plate are arranged at intervals so as to facilitate the air flow circulation in the air duct;
the lower end face of the fan cover is provided with a vent communicated with the air channel, so that the air channel of the upper part and the lower part of the fan is communicated, part of return air flows to the water accumulating groove below through the vent under the action of the fan, and then is blown upwards to enter the storage chamber, and the humidity of the storage chamber is improved.
Optionally, the refrigerator further comprises:
the baffle is positioned above the fan cover, formed or arranged on the wall surface of the air duct cover plate facing to the rear wall of the inner container, extends towards the direction of the rear wall of the inner container and is arranged at a distance from the rear wall of the inner container; and is
The partial face of baffle is located the sunshade directly over to make the baffle shelter from the partial face of sunshade, on falling the fan under with the defrosting of avoiding in the wind channel.
Optionally, the shielding plate is obliquely arranged, and the end surface of the shielding plate facing the air duct cover plate is higher than the end surface of the shielding plate facing the rear wall of the inner container;
the baffle is the slope setting, and the terminal surface that the baffle is located on the wind channel apron is higher than the terminal surface of baffle towards the inner bag back wall.
According to the refrigerator, the fan is arranged at the lower part of the air duct, so that the position of the fan in the prior art is changed, and the problems that the fan is arranged at the upper part of the air duct, the space is occupied, and the attractiveness of the refrigerator is influenced are solved; and the evaporator is arranged outside the rear wall of the inner container and is configured to indirectly cool the air in the air duct, when wet air passes through the evaporator refrigerating area of the air duct, the wet air does not directly contact with the evaporator but exchanges heat with the rear wall surface of the inner container, and the temperature of the rear wall surface of the inner container is higher than that of the evaporator, so that the frosting amount of the wet air is reduced, more water vapor is brought into the storage compartment chamber, and most of the water vapor is not frozen by the evaporator to form frosting, the humidity of the storage compartment chamber is improved, the humidity of food stored in the storage compartment chamber is kept conveniently, and the food is prevented from being air-dried.
Furthermore, in the refrigerator, the water accumulating groove with a special structure is adopted, the water accumulating groove is provided with the water accumulating area, the fan is close to the water accumulating groove, return air passes through the water collecting groove when the fan operates in the refrigeration mode, and part of water vapor in the water accumulating area of the water accumulating groove is taken away by the return air and enters the storage compartment, so that evaporation of defrosting water in the water accumulating area is accelerated, and the humidity of the storage compartment is further improved.
Furthermore, in the refrigerator, the upper end of the fan cover is provided with the shielding plate protruding towards the direction of the air duct cover plate, the fan at the lower part of the fan cover is shielded by the shielding plate, the defrosting water in the air duct is prevented from dropping on the fan, and the risk of line short circuit caused by the fact that the fan contacts water is avoided.
Furthermore, in the refrigerator, the baffle is arranged above the fan cover, the baffle extends from the direction of the air duct cover plate to the direction of the rear wall of the inner container, and part of the plate surface of the baffle is positioned right above the shielding plate, so that the baffle shields part of the plate surface of the shielding plate, the space above the fan is completely shielded by the baffle and the shielding plate, frost melting water is prevented from dropping on the fan, and the operation safety of the fan is improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a refrigerator according to one embodiment of the present invention;
FIG. 2 is a combined structure view of an evaporator, a liner, a fan guard, a fan and a duct cover of a refrigerator according to an embodiment of the present invention;
FIG. 3 is an exploded schematic view of FIG. 2;
FIG. 4 is a combined structure view of an inner container and a cover plate of an air duct of a refrigerator according to an embodiment of the present invention;
FIG. 5 is a combined block diagram of a duct cover, fan, and fan guard of a refrigerator according to one embodiment of the present invention;
FIG. 6 is an exploded view of the inner container and the duct cover according to one embodiment of the present invention; and
fig. 7 is a schematic structural view of an inner container of a refrigerator according to one embodiment of the present invention.
Detailed Description
The present embodiment first provides a refrigerator 100, and fig. 1 is a schematic structural view of the refrigerator 100 according to an embodiment of the present invention.
The refrigerator 100 may generally include a cabinet 110, at least one inner container 120 with an open front defined in the cabinet 110, a storage compartment defined in the inner container 120, an outer shell wrapped around the inner container 120, and a thermal insulation material, such as a foaming agent, filled between the outer shell and the inner container 120 to prevent the dissipation of cold. The inner container 120 is generally a plurality of inner containers, such as a refrigerating inner container, a freezing inner container, a temperature-changing inner container, and the like, and the corresponding storage compartments are a refrigerating compartment 121, a freezing compartment 141, and a temperature-changing compartment. The number and function of the particular bladders 120 may be configured according to anticipated needs. In some embodiments, the storage temperature of the refrigerating compartment 121 may be 2 to 9 ℃, or may be 4 to 7 ℃; the preservation temperature of the freezing chamber 141 can be-22 to-14 ℃, or can be-20 to 16 ℃. The freezing chamber 141 is provided below the refrigerating chamber 121, and the temperature changing chamber is provided between the freezing chamber 141 and the refrigerating chamber 121. The temperature in the freezing chamber 141 is generally in the range of-14 ℃ to-22 ℃. The temperature-changing chamber can be adjusted according to the requirement to store proper food or be used as a fresh-keeping storage chamber.
The storage compartments can be closed by door bodies, and the door bodies are used for opening and closing the storage compartments. For example, the refrigerating chamber door 130, the freezing chamber door 150, and the temperature-varying chamber door may be provided for the refrigerating chamber 121, the freezing chamber 141, and the temperature-varying chamber, respectively. The door body may include a pivoting type as well as a drawer type. The pivoting door body may be hinged to one side of the front portion of the cabinet 110 and may be pivotally opened.
The refrigerator 100 may be a direct-cooling type refrigerator or an air-cooling type refrigerator, and the refrigerator 100 of the present embodiment is an air-cooling type refrigerator which may use a compression type refrigeration cycle as a cooling source, and the refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttling device, an evaporator 170, and the like. The evaporator 170 is configured to provide cooling energy into the storage compartment. Since the refrigeration system and the refrigeration principle of the refrigerator 100 are well known and easily implemented by those skilled in the art, the refrigeration system itself will not be described in detail hereinafter in order to avoid obscuring and obscuring the invention of the present application.
Fig. 2 is a combined structure view of an evaporator 170, an inner container 120, a fan guard 191, a fan 190 and an air duct cover 180 according to an embodiment of the present invention, fig. 3 is an exploded view of fig. 2, fig. 4 is a combined structure view of the inner container 120 and the air duct cover 180 of the refrigerator 100 according to an embodiment of the present invention, and fig. 5 is a combined structure view of the air duct cover 180, the fan 190 and the fan guard 191 of the refrigerator 100 according to an embodiment of the present invention.
In particular, in the refrigerator 100 of the embodiment, the air duct 122 extends from bottom to top along the rear wall of the inner container 120 inside the inner container 120, the evaporator 170 is disposed outside the rear wall of the inner container 120 and configured to cool the air in the air duct 122, and the fan 190 is disposed inside the air duct 122 and located at the lower portion of the air duct 122 and configured to promote the air in the air duct 122 cooled by the evaporator 170 to flow into the storage compartment.
The inner container 120 of the present embodiment may be a refrigerating inner container, and correspondingly, the storage compartment is a refrigerating compartment 121. The evaporator 170 of this embodiment is located outside the rear wall of the inner container 120 and can abut against the outer surface of the rear wall of the inner container 120. Since the foaming layer is filled between the rear wall of the inner container 120 and the housing, and the evaporator 170 is located outside the rear wall of the inner container 120, it can also be understood that a chamber is formed between the rear wall of the inner container 120 and the foaming layer, the evaporator 170 is located in the evaporator chamber between the rear wall of the inner container 120 and the foaming layer, and the evaporator 170 indirectly cools the air in the air duct 122 through the rear wall of the inner container 120.
Because the evaporator 170 is not in the air duct 122, the wet air does not directly contact the evaporator 170 but exchanges heat with the wall surface of the rear wall of the liner 120 when passing through the refrigerating area of the evaporator 170 of the air duct 122, and because the temperature of the wall surface of the rear wall of the liner 120 is higher than that of the evaporator 170, the frosting amount of the wet air is reduced, more water vapor is ensured to be brought into the storage compartment instead of being frozen by the evaporator 170 to form frosting, so that the humidity of the storage compartment is improved, the humidity of the food stored in the storage compartment is kept conveniently, and the food is prevented from being dried by air.
In this embodiment, the refrigerator 100 further includes an air duct cover plate 180, the air duct cover plate 180 is disposed at the rear side of the storage compartment, and the air duct cover plate 180 and the rear wall of the inner container 120 jointly define the air duct 122. An air outlet 180a communicated with the storage compartment is formed at the upper part and/or the side part of the air duct cover plate 180, and an air return opening 180b communicated with the storage compartment is formed at the lower part of the air duct cover plate 180. As shown in fig. 5, in the present embodiment, a plurality of air outlets 180a are formed at the top of the air duct cover plate 180, and the air return openings 180b may correspond to the air inlets of the fan 190, so as to form an air flow circulation between the air duct 122 and the storage compartment. As shown in fig. 4, the air return opening 180b may be defined by a return air grille formed by the duct cover plate 180, and the return air grille may be annular, that is, an annular return air grille is formed at a position of the lower portion of the duct cover plate 180 corresponding to the air intake direction of the fan 190 to define the air return opening 180 b.
As shown in fig. 4 and 5, a downwardly protruding clip 180d may be formed at the bottom end of the air duct cover plate 180, the clip 180d may be a clip plate or a clip block, a clip groove matched with the clip 180d is formed at a position corresponding to the air duct 122 at the bottom of the inner container 120, and the clip 180d is clipped in the clip groove to increase the mounting stability of the air duct cover plate 180. The number of the latches 180d may be two, and the two latches 180d extend along the width direction of the duct cover 180.
As shown in fig. 3 and 5, the refrigerator 100 of the present embodiment further includes a fan guard 191, the fan guard 191 is disposed on a wall surface of the duct cover 180 facing the rear wall of the inner container 120, the fan guard 191 is disposed at a distance from the bottom of the inner container 120, an upper end of the fan guard 191 has a shielding plate 191a protruding toward the duct cover 180, and the shielding plate 191a is disposed at a distance from the duct cover 180.
The fan 190 is disposed on the fan cover 191 and located in a space between the fan cover 191 and the air duct cover plate 180, the fan 190 of this embodiment is a centrifugal fan, and an air inlet direction of the fan 190 faces the air return opening 180b of the air duct cover plate 180. Under the action of the fan 190, the airflow flowing out of the air return opening 180b flows upwards through the space between the fan cover 191 and the air duct cover plate 180, and enters the storage compartment after being indirectly cooled by the evaporator 170, so that airflow circulation is formed.
Fig. 6 is an exploded structural view of the inner container 120 and the air duct cover 180 of the refrigerator 100 according to an embodiment of the present invention, and fig. 7 is a schematic structural view of the inner container 120 of the refrigerator 100 according to an embodiment of the present invention.
As shown in fig. 6, a groove 125 recessed outward may be formed at a position of the rear wall of the inner container 120 close to the lower portion, and a portion of the air duct cover plate 180 corresponding to the groove 125 protrudes inward into the storage compartment, so as to provide a certain avoidance space for arrangement of structures such as the fan cover 191 and the fan 190, and due to the existence of the groove 125, a distance of the air duct cover plate 180 protruding inward into the storage compartment is reduced, thereby reducing an influence of arrangement of the structures such as the fan 190 and the fan cover 191 on the storage compartment space. Moreover, most of the plate surfaces of the air duct cover plate 180 are flat, so that the appearance is smoother, and the storage space of the storage compartment is increased, and meanwhile, the attractiveness of the refrigerator 100 is improved.
Because the inner wall of the air duct 122 may be frosted, the indirect heat exchange effect between the air in the air duct 122 and the evaporator 170 may be affected. Therefore, the refrigerator 100 is periodically subjected to a defrosting operation during use.
In this embodiment, as shown in fig. 6 and 7, a water collecting groove recessed downward is formed at a position corresponding to the air duct 122 on the bottom wall of the inner container 120, and a drain port 124a is formed at the bottom of the water collecting groove. During defrosting of the refrigerator 100, large frost blocks or defrosting water in the air duct 122 drop downward into the water collecting tank and are discharged through the water outlet 124 a. Generally, a water pipe is connected to the water outlet 124a, a water receiving tray is disposed in a compressor chamber (the compressor chamber is generally located at the rear of the lower portion of the freezing inner container) of the refrigerator 100, defrosting water enters the water pipe through the water outlet 124a and is delivered to the water receiving tray by the water pipe, and water in the water receiving tray can absorb heat released by a compressor and a condenser in the compressor chamber and evaporate.
A ventilation opening penetrating the air duct 122 may be formed in a lower end surface of the fan cover 191, so that an air path above and below the fan 190 is smooth. When the refrigerator 100 is refrigerating, under the action of the fan 190, a part of return air with higher temperature flowing out from the return air inlet 180b of the air duct cover plate 180 is blown to the upper evaporator 170, the other part of the return air is blown to the lower water collecting tank, and then the return air is blown to the evaporator 170 in the reverse direction, so that the evaporation speed of defrosting water in the water collecting tank is accelerated, a part of water vapor is taken away by the return air and enters the storage compartment, the evaporation of the defrosting water in the water collecting area is accelerated, and the humidity of the storage compartment is improved; in addition, the return air temperature blown to the water accumulation tank is high, so that the risk that the water outlet 124a is frozen due to too low temperature is avoided.
When the temperature of the storage compartment of the refrigerator 100 is reduced to the set temperature, the refrigerator 100 stops cooling, that is, the compressor is stopped, and at this time, the fan 190 is configured to operate at a lower rotation speed, so that the storage compartment is kept humidified while noise is kept low; meanwhile, the temperature uniformity in the storage room is better. That is, when the compressor is turned on and the refrigerator 100 cools, the fan 190 operates at the first rotational speed; the compressor is turned off, the refrigerator 100 stops cooling, and the blower fan 190 is operated at a second rotation speed lower than the first rotation speed to continuously provide high-humidity air to the storage compartment, thereby increasing the humidity and temperature uniformity in the storage compartment.
In this embodiment, referring to fig. 5 again, the shielding plate 191a of the fan cover 191 protrudes toward the air duct cover 180, so as to just shield a part of the space above the fan 190, and prevent the defrosting water from dropping onto the fan 190. Preferably, the shielding plate 191a is disposed obliquely, an end surface of the shielding plate 191a facing the air duct cover plate 180 is higher than an end surface of the shielding plate facing the rear wall of the inner container 120, that is, a front end surface of the shielding plate 191a is higher than a rear end surface, or the shielding plate 191a extends obliquely from the upper end of the fan cover 191 to the front and upper side, so that the defrosting water slides to the rear of the fan cover 191 along the inclined surface of the shielding plate 191a and drops into the water collecting tank at the lower part, and the defrosting water is prevented from dropping onto the fan 190. In this embodiment, "front" refers to a direction close to the door of the storage compartment.
In this embodiment, referring to fig. 5 again, a baffle 180c may be disposed above the fan cover 191, the baffle 180c is formed or disposed on a wall surface of the air duct cover 180 facing the rear wall of the inner container 120, extends toward the rear wall of the inner container 120, and is spaced from the rear wall of the inner container 120, and a part of the plate surface of the baffle 180c is located directly above the shielding plate 191a, that is, a part of the plate surface of the baffle 180c shields a part of the plate surface of the shielding plate 191 a. Because baffle 180c is extended to inner bag 120 back wall direction by wind channel apron 180, sunshade 191a is extended to wind channel apron 180 direction by the upper end of fan guard 191, fan 190 is between wind channel apron 180 and fan guard 191, under the common limit of baffle 180c and sunshade 191a, the upper portion space of fan 190 is sheltered from completely to can avoid melting the frost water to drip on fan 190, avoid fan 190 to take place the risk of circuit short circuit because of contacting water, increase the security of fan 190 operation.
The baffle 180c may be disposed obliquely, and the end surface of the baffle 180c on the air duct cover plate 180 is higher than the end surface of the baffle 180c facing the back wall of the inner container 120, that is, the front end surface of the baffle 180c is higher than the back end surface of the baffle 180c, or the baffle 180c extends obliquely from the position of the air duct cover plate 180 to the back lower side, and the defrosting water dropping on the baffle 180c slides down to the shielding plate 191a below the baffle 180c along the oblique surface of the baffle 180c to further slide down to the water collecting tank at the lower part along the shielding plate 191 a.
In one embodiment of this embodiment, as shown in fig. 6 and 7, the water collecting tank may be a trapezoidal groove, and a cross section of the water collecting tank parallel to the rear wall of the inner container 120 is trapezoidal, an upper edge of the water collecting tank is a long edge of the trapezoidal groove, and a lower edge of the water collecting tank is a short edge of the trapezoidal groove, and it can also be understood that: the notch of the water collecting groove corresponds to the long edge of the trapezoid, the lower end surface 124 of the water collecting groove corresponds to the short edge of the trapezoid, and two opposite oblique end surfaces 123 between the notch of the water collecting groove and the lower end surface 124 of the water collecting groove correspond to the two waists of the trapezoid. The drainage port 124a is formed on the lower end surface 124 of the water collecting tank, and the defrosting water drops into the water collecting tank, slides to the drainage port 124a along the inclined end surface 123 of the water collecting tank, and is drained through the drainage port 124a, so that the defrosting water is drained in time.
In one embodiment of this embodiment, water-retaining blocks 123a protruding upward may be respectively formed on two inclined end surfaces 123 of the water collecting tank adjacent to the water outlet 124a, each water-retaining block 123a extends from the rear wall of the inner container 120 to the front end surface of the water collecting tank to block the defrosting water sliding down along the inclined end surfaces 123, so that the water-collecting area is formed by the water-retaining blocks 123a and the inclined end surfaces 123 where the water-retaining blocks 123a are located, and after the defrosting water in the water-collecting area is fully collected, the defrosting water flows into the water outlet 124a over the water-retaining blocks 123 a.
The water blocking block 123a may be directly formed on the upper surface of the inclined end surface 123 of the sump, that is, the water blocking block 123a protrudes upward from the upper surface of the inclined end surface 123 of the sump. The water stop 123a may be formed by upwardly recessing the lower surface of the inclined end surface 123 of the sump, that is, upwardly recessing the lower surface of the inclined end surface 123 of the sump (at a position indicated by a in fig. 2), thereby forming the water stop 123a on the upper surface of the inclined end surface 123. The two water blocks 123a located on the two inclined end surfaces 123 of the water collecting tank may be disposed oppositely, that is, the two water blocks 123a are symmetrically disposed with respect to the water discharge opening 124 a.
The up end of manger plate piece 123a is less than the top edge of the preceding terminal surface of ponding groove for the preceding terminal surface of ponding groove can not crossed to the ponding in ponding district, avoids ponding infiltration to be indoor between the storing.
In one embodiment of this embodiment, the above-mentioned slot 126 matched with the clip 180d at the bottom end of the air duct cover plate 180 may be formed on the front end surface of the water collecting tank, that is, the slot 126 matched with the clip 180d is formed on the front end surface of the water collecting tank, and the clip 180d is clipped in the slot 126, so as to increase the installation stability of the air duct cover plate 180.
In one embodiment of the present invention, the inner container 120 is a refrigerating inner container, correspondingly, the storage compartment is a refrigerating chamber 121, and a humidification air path penetrating the air duct 122 and extending from the rear wall of the refrigerating inner container to the front side is formed at the bottom of the refrigerating inner container. The fan 190 should be disposed near the humidification air path. A water storage area which is recessed downward is formed on the bottom wall of the humidification air passage, and an opening is formed at a position of the bottom wall of the refrigerating chamber 121 corresponding to the water storage area, so that the water storage area is communicated with the refrigerating chamber 121.
Fan 190 is also configured to facilitate channeling a portion of the return air of fresh food compartment 121 to the humidification air path. In the operation process of the fan 190, a part of return air flows upwards under the action of the fan 190, is directly or indirectly cooled by the evaporator 170 and then enters the refrigerating chamber 121, a part of return air is blown to the water storage area through the humidifying air path, and water in the water storage area is evaporated and then enters the refrigerating chamber 121 through an opening formed in the bottom wall of the refrigerating chamber 121, so that the humid air flows in the refrigerating chamber 121, and the humidity of the whole refrigerating chamber 121 is improved.
The water storage region may be located at a position near the front side of the humidification air path, that is, the water storage region is disposed closer to the refrigerating chamber door 130. The water storage area may serve as a sink for directly receiving water, or a separate water box may be disposed in the water storage area. The periphery of an opening formed at the position corresponding to the bottom wall of the refrigerating chamber 121 and the water storage area is covered with a detachable humidifying cover plate, a plurality of air holes are formed in the humidifying cover plate, and the wet air evaporated in the water storage area enters the refrigerating chamber 121 through the plurality of air holes, so that the humidity of the refrigerating chamber 121 is improved.
In one embodiment of the present invention, the refrigerator 100 may further include a damper and a humidity sensor disposed in the refrigerating compartment 121 and configured to monitor humidity of the refrigerating compartment 121. The damper is disposed at the front side of the air duct 122 and located at the rear side of the humidification air path, and the damper can be controlled to open or close the humidification air path according to the humidity of the refrigerating compartment 121 monitored by the humidity sensor, so as to flexibly adjust the humidity of the refrigerating compartment 121. For example, the damper is configured to open the humidification air path when the humidity of the refrigerating compartment 121 is lower than a set value, to pass the humidification air path through the refrigerating air duct 122, to blow part of return air flowing out of the refrigerating compartment 121 into the water storage region through the humidification air path by the fan 190, to allow wet air evaporated from the water storage region to enter the refrigerating compartment 121, to humidify the refrigerating compartment 121, and to flexibly adjust the humidity of the refrigerating compartment 121 according to the humidity requirement of the refrigerating compartment 121.
In one embodiment of the present invention, a boss protruding upward is formed at a position where the bottom wall of the humidification air path is located on the front side of the damper and on the rear side of the water storage region, a direction in which the rear wall of the refrigeration liner extends to the front side is defined as a longitudinal direction of the humidification air path, and the boss extends from one side to the other side in the width direction of the humidification air path. The position that freezer 121 diapire and boss correspond upwards protrudes for the boss provides dodge the space, and the up end of boss sets up with freezer 121's diapire interval to the air current circulates in the humidification wind path, and the up end of boss is higher than the open-ended up end that freezer 121 diapire and the position that the water storage district corresponds formed, thereby can prevent that the risk that the user from pouring too much water into the water storage district and lead to the air door to be soaked by water when careless.
The refrigerating compartment 121 may be partitioned by a partition wall to form a first storage compartment located at a lower portion of the partition wall and a second storage compartment located at an upper portion of the partition wall. The refrigerator 100 further includes a refrigerating drawer disposed in the first storage compartment and a bottle holder disposed at a position corresponding to the refrigerating drawer inside the refrigerating chamber door 130. The refrigerating drawer is spaced from the bottle holder by a certain distance, and the refrigerating drawer is spaced from the inner wall of the refrigerating chamber 121 so as to facilitate smooth air flow in the refrigerating chamber 121. Optionally, the refrigeration drawer is positioned directly in front of the air return opening 180b of the duct cover 180, and the air return opening 180b is not visible from the front side by the user to enhance the aesthetic appearance of the refrigerator 100.
In particular, an area where the opening on the bottom wall of the refrigerating compartment 121 is located or an area where the plurality of ventilation holes on the humidifying cover plate are located is opposite to a spaced area between the refrigerating drawer and the bottle holder, that is, the spaced area between the refrigerating drawer and the bottle holder is located directly above the opening on the bottom wall of the refrigerating compartment 121 or the plurality of ventilation holes on the humidifying cover plate to form a humid air circulation space. Moreover, the vertical height of the bottom wall of the refrigerating drawer and the bottom wall of the refrigerating chamber 121 is greater than or equal to 20 mm, and the horizontal distance between the refrigerating drawer and the bottle seat is greater than or equal to 20 mm, so that the smoothness of humidifying and air supplying is fully guaranteed.
In the refrigerator 100 of the embodiment, the fan 190 is disposed at the lower portion of the air duct 122, so that the position of the fan 190 in the prior art is changed, and the problems that the fan 190 occupies a large space and affects the aesthetic property of the refrigerator 100 when being disposed at the upper portion of the air duct 122 are solved; furthermore, the evaporator 170 is disposed outside the rear wall of the inner container 120 and configured to indirectly cool the air in the air duct 122, and when wet air passes through the cooling area of the evaporator 170 of the air duct 122, the wet air does not directly contact the evaporator 170 but exchanges heat with the rear wall surface of the inner container 120, because the temperature of the rear wall surface of the inner container 120 is higher than that of the evaporator 170, the frosting amount of the wet air is reduced, and it is ensured that more water vapor is brought into the storage compartment instead of being mostly frozen by the evaporator 170 to form frosting, thereby increasing the humidity of the storage compartment, facilitating to maintain the humidity of the food stored in the storage compartment, and avoiding the food from being air-dried.
Further, in the refrigerator 100 of this embodiment, a water accumulation groove with a special structure is adopted, and the water accumulation groove is formed with a water accumulation area, and the fan 190 is close to the position of the water accumulation groove.
Furthermore, in the refrigerator 100 of the embodiment, the upper end of the fan cover 191 has a shielding plate 191a protruding toward the air duct cover plate 180, and the fan 190 at the lower portion is shielded by the shielding plate 191a, so that the frost formed in the air duct 122 is prevented from dropping on the fan 190, and the risk of line short circuit caused by the contact of the fan 190 with water is avoided.
Furthermore, in the refrigerator 100 of this embodiment, a baffle 180c is further disposed above the fan cover 191, the baffle 180c extends from the direction of the air duct cover plate 180 to the direction of the rear wall of the inner container 120, and a part of the panel surface of the baffle 180c is located right above the shielding plate 191a, so that the baffle 180c shields a part of the panel surface of the shielding plate 191a, and thus the space above the fan 190 is completely shielded by the baffle 180c and the shielding plate 191a, thereby preventing the melted frost from dropping on the fan 190 and increasing the safety of the operation of the fan 190.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (7)

1.一种冰箱，包括：1. A refrigerator comprising: 内胆，其内限定有储物间室；An inner tank, which defines a storage compartment; 风道，其在所述内胆内沿所述内胆后壁由下而上延伸；an air duct, which extends from bottom to top along the rear wall of the inner bladder in the inner bladder; 蒸发器，设置于所述内胆后壁的外侧，配置为间接冷却所述风道内的空气；an evaporator, arranged on the outer side of the rear wall of the inner tank, configured to indirectly cool the air in the air duct; 风机，设置于所述风道内且位于所述风道的下部，配置为促使经所述蒸发器冷却后的所述风道内的空气流入所述储物间室中；a fan, arranged in the air duct and located at the lower part of the air duct, configured to promote the air in the air duct cooled by the evaporator to flow into the storage compartment; 所述内胆的底壁与所述风道对应的位置形成有向下凹陷的积水槽，所述积水槽的槽底形成有排水口，以便于排出所述风道内的化霜水；The bottom wall of the inner tank is formed with a downwardly concave water trough at the position corresponding to the air duct, and a drainage port is formed at the bottom of the trough to facilitate the discharge of the defrosting water in the air duct; 所述积水槽为梯形槽，且所述积水槽平行于所述内胆后壁的截面呈梯形，所述积水槽的上边缘为所述梯形的长边缘，所述积水槽的下边缘为所述梯形的短边缘；所述排水口形成于所述积水槽的下端面上；The water collecting groove is a trapezoidal groove, and the cross section of the water collecting groove parallel to the back wall of the inner tank is a trapezoid, the upper edge of the water collecting groove is the long edge of the trapezoid, and the lower edge of the water collecting groove is the bottom edge of the trapezoid. the short edge of the trapezoid; the water outlet is formed on the lower end surface of the water tank; 所述风机为离心风机，所述风机位于所述排水口的上部；The fan is a centrifugal fan, and the fan is located at the upper part of the water outlet; 所述积水槽的两个斜端面上临近所述排水口的位置分别形成有向上凸出的挡水块；并且每个所述挡水块由所述内胆后壁延伸至所述积水槽的前端面，以利用所述挡水块与该挡水块所在的所述斜端面构成积水区，使得所述积水区的水满后越过所述挡水块流入所述排水口。Water blocking blocks protruding upward are respectively formed on the two inclined end surfaces of the water storage tank at positions adjacent to the water outlet; and each of the water blocking blocks extends from the rear wall of the inner tank to the bottom of the water storage tank. The front end surface is formed by the water blocking block and the inclined end surface where the water blocking block is located to form a water accumulation area, so that the water in the water accumulation area flows over the water blocking block and flows into the drainage port after the water accumulation area is full. 2.根据权利要求1所述的冰箱，其中2. The refrigerator according to claim 1, wherein 所述挡水块的上端面低于所述积水槽的前端面的上边缘，以避免所述积水区的水越过所述积水槽的前端面的上边缘渗入所述储物间室内。The upper end surface of the water blocking block is lower than the upper edge of the front end surface of the water collecting groove, so as to prevent the water in the water collecting area from infiltrating into the storage compartment through the upper edge of the front end surface of the water collecting groove. 3.根据权利要求1所述的冰箱，还包括：3. The refrigerator according to claim 1, further comprising: 风道盖板，设置于所述储物间室的后侧，与所述内胆后壁共同限定出所述风道。The air duct cover plate is arranged on the rear side of the storage compartment, and defines the air duct together with the rear wall of the inner container. 4.根据权利要求3所述的冰箱，其中4. The refrigerator according to claim 3, wherein 所述风机为离心风机；The fan is a centrifugal fan; 所述风道盖板的上部和/或侧部形成有与所述储物间室连通的出风口；An air outlet communicated with the storage compartment is formed on the upper part and/or the side part of the air duct cover; 所述风道盖板的下部与所述风机的进风口对应的位置形成有与所述储物间室连通的回风口。A return air opening communicated with the storage compartment is formed at a position corresponding to the air inlet of the fan at the lower part of the air duct cover. 5.根据权利要求4所述的冰箱，还包括：5. The refrigerator according to claim 4, further comprising: 风机罩，设置于所述风道盖板朝向所述内胆后壁的壁面上；The fan cover is arranged on the wall surface of the air duct cover facing the rear wall of the inner tank; 所述风机设置于所述风机罩上，且位于所述风机罩与所述风道盖板之间的空间；The fan is arranged on the fan cover, and is located in the space between the fan cover and the air duct cover; 所述风机罩的上端具有向所述风道盖板方向凸出的遮板；The upper end of the fan cover has a shutter protruding toward the direction of the air duct cover; 所述遮板与所述风道盖板间隔设置，以便于所述风道内的气流流通；The shutter and the air duct cover plate are arranged at intervals to facilitate the airflow in the air duct; 所述风机罩的下端面形成有与所述风道贯通的通风口，以使得所述风机的上部和下部的风路连通，以便于在所述风机的作用下，部分回风通过所述通风口流向下方的所述积水槽，之后再向上吹送进入所述储物间室中，从而提高所述储物间室的湿度。The lower end surface of the fan cover is formed with a ventilation opening that passes through the air duct, so that the upper and lower air ducts of the fan are connected, so that under the action of the fan, part of the return air passes through the ventilation The mouth flows to the water sump below, and then blows upwards into the storage compartment, thereby increasing the humidity of the storage compartment. 6.根据权利要求5所述的冰箱，还包括：6. The refrigerator according to claim 5, further comprising: 挡板，位于所述风机罩的上方，形成或设置于所述风道盖板朝向所述内胆后壁的壁面上，并向所述内胆后壁方向延伸，且与所述内胆后壁间隔设置；并且A baffle, located above the fan cover, is formed or arranged on the wall surface of the air duct cover facing the rear wall of the inner tank, and extends toward the rear wall of the inner tank, and is connected to the rear of the inner tank. wall spacing; and 所述挡板的部分板面位于所述遮板的正上方，以使得所述挡板遮挡所述遮板的部分板面，以避免所述风道内的化霜水下落到所述风机上。A part of the surface of the baffle is located directly above the shutter, so that the baffle shields a part of the surface of the shutter to prevent the defrost water in the air duct from falling onto the fan. 7.根据权利要求6所述的冰箱，其中7. The refrigerator according to claim 6, wherein 所述遮板呈倾斜设置，且所述遮板朝向所述风道盖板的端面高于所述遮板朝向所述内胆后壁的端面；The shutter is arranged obliquely, and the end face of the shutter facing the air duct cover plate is higher than the end face of the shutter facing the rear wall of the inner container; 所述挡板呈倾斜设置，且所述挡板位于所述风道盖板上的端面高于所述挡板朝向所述内胆后壁的端面。The baffle is arranged obliquely, and the end face of the baffle located on the air duct cover plate is higher than the end face of the baffle facing the rear wall of the inner container.
CN201711489435.7A 2017-12-29 2017-12-29 Refrigerator with a door Active CN108278825B (en)

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Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee after: Haier Smart Home Co., Ltd.

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