WO2019129241A1 - 冰箱 - Google Patents

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Publication number
WO2019129241A1
WO2019129241A1 PCT/CN2018/125055 CN2018125055W WO2019129241A1 WO 2019129241 A1 WO2019129241 A1 WO 2019129241A1 CN 2018125055 W CN2018125055 W CN 2018125055W WO 2019129241 A1 WO2019129241 A1 WO 2019129241A1
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WO
WIPO (PCT)
Prior art keywords
fan
water
air
air duct
cover
Prior art date
Application number
PCT/CN2018/125055
Other languages
English (en)
French (fr)
Inventor
曹东强
Original Assignee
青岛海尔股份有限公司
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 青岛海尔股份有限公司 filed Critical 青岛海尔股份有限公司
Publication of WO2019129241A1 publication Critical patent/WO2019129241A1/zh

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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

Definitions

  • the invention relates to the field of home appliance technology, and in particular to a refrigerator.
  • Fans are an integral part of air-cooled refrigerators and their function is to increase the heat transfer efficiency of the evaporator by forced convection.
  • the fan In order to prevent the defrosting water droplets in the air duct from falling onto the fan, in general, the fan is disposed at the upper part of the evaporator.
  • the structure of the refrigerator, the fan and the air duct structure occupy a considerable part of the volume of the compartment, reducing the refrigerator.
  • the volume ratio secondly, the fan protrudes from the air duct structure, which is not beautiful; in addition, the drain port located at the lower part of the air duct is far away from the fan, and the return air is far away from the bottom of the air duct after being blown into the air duct, and the drain port has a certain distance.
  • the risk of icing; and the low air flow rate above the water tank, the humidification effect is poor.
  • a further object of the present invention is to improve the humidifying effect of the refrigerator and increase the volume of the refrigerator.
  • the invention provides a refrigerator comprising:
  • a duct that extends from bottom to top along the inner wall of the inner bladder
  • the evaporator is disposed outside the rear wall of the liner and configured to indirectly cool the air in the air passage;
  • the fan disposed in the air duct and located at a lower portion of the air duct, is configured to cause air in the air passage cooled by the evaporator to flow into the storage compartment.
  • the bottom wall of the inner tank is formed with a downwardly recessed water reservoir at a position corresponding to the air passage;
  • the bottom of the trough of the sump is formed with a drain to facilitate the discharge of defrosted water in the duct.
  • the water tank is a trapezoidal groove, and the water tank is trapezoidal in a section parallel to the rear wall of the inner tank;
  • the upper edge of the sump is a long edge of a trapezoid, and the lower edge of the sump is a short edge of a trapezoid;
  • the drain port is formed on the lower end surface of the sump.
  • the fan is a centrifugal fan, and the fan is located at an upper portion of the drain port;
  • a position of the water sump on the two inclined end faces adjacent to the drain opening is respectively formed with a water blocking block protruding upward;
  • Each water block extends from the rear wall of the inner tank to the front end surface of the water tank to form a water accumulation area by using the water block and the inclined end surface where the water block is located, so that the water in the water storage area overflows and flows over the water block. Drainage port.
  • the upper end surface of the water block is lower than the upper edge of the front end surface of the water tank to prevent water in the water accumulation area from penetrating into the storage room over the upper edge of the front end surface of the water tank.
  • the refrigerator further includes:
  • the duct cover is disposed on the rear side of the storage compartment and defines a duct together with the rear wall of the liner.
  • the fan is a centrifugal fan
  • An upper air outlet and/or a side portion of the air duct cover is formed with an air outlet communicating with the storage compartment;
  • a lower portion of the duct cover is formed with a return air port communicating with the storage compartment at a position corresponding to the air inlet of the fan.
  • the refrigerator further includes:
  • a fan cover disposed on a wall surface of the air duct cover facing the rear wall of the inner tank;
  • the fan is disposed on the fan cover and located between the fan cover and the air duct cover;
  • the upper end of the fan cover has a shutter protruding toward the air duct cover
  • the shutter is spaced from the air duct cover to facilitate airflow in the air duct;
  • the lower end surface of the fan cover is formed with a venting opening through the air passage to connect the upper and lower air passages of the fan, so that under the action of the fan, part of the return air flows through the vent to the lower sump, and then upward Blowing into the storage compartment increases the humidity in the storage compartment.
  • the refrigerator further includes:
  • baffle located above the fan cover, formed or disposed on the wall surface of the air duct cover facing the rear wall of the inner liner, extending toward the rear wall of the inner casing and spaced apart from the rear wall of the inner casing;
  • a part of the surface of the baffle is directly above the shutter so that the baffle blocks part of the surface of the shutter to prevent the defrosted water in the air duct from falling onto the fan.
  • the shielding plate is disposed obliquely, and an end surface of the shielding plate facing the air duct cover is higher than an end surface of the shielding plate facing the rear wall of the inner casing;
  • the baffle is inclined, and the end surface of the baffle on the air duct cover is higher than the end surface of the baffle facing the rear wall of the inner tank.
  • the fan is disposed in the lower part of the air duct, which changes the position of the fan in the prior art, avoids the problem that the fan is disposed in the upper part of the air duct and affects the appearance of the refrigerator; and the evaporator is disposed inside
  • the outer side of the back wall of the bile is configured to indirectly cool the air in the air duct.
  • the temperature of the wall of the rear wall is higher than the temperature of the evaporator, thus reducing the amount of frosting of the humid air, ensuring that more water vapor is brought into the storage compartment instead of being mostly frozen by the evaporator to form frost.
  • the humidity in the storage room is increased, and the humidity of the food stored in the storage room is kept to prevent the food from being dried.
  • the refrigerator of the present invention a special structure of the water tank is adopted, and the water tank is formed with a water accumulation area, and the fan is close to the position of the water tank.
  • the cooling mode when the fan is running, the return air passes through the sump, and the sump A part of the water vapor in the water-storage area is taken back into the storage room by the return air, which accelerates the evaporation of the defrosting water in the water-storing area and further improves the humidity of the storage room.
  • the upper end of the fan cover has a shutter protruding toward the air duct cover, and the fan at the lower portion is blocked by the shutter to prevent the defrosting water droplets in the air duct from falling onto the fan and avoiding the fan. The risk of a short circuit due to contact with water.
  • the fan cover further has a baffle above the fan cover, and the baffle extends from the direction of the air duct cover toward the rear wall of the inner casing, and a part of the plate surface of the baffle is directly above the shutter.
  • the baffle blocks part of the surface of the shutter, so that the space above the fan is completely blocked by the baffle and the shutter, thereby preventing the defrosting water from falling onto the fan and increasing the safety of the fan operation.
  • FIG. 1 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention.
  • FIG. 2 is a combined structural view of an evaporator, a liner, a fan cover, a fan, and a duct cover of a refrigerator according to an embodiment of the present invention
  • Figure 3 is an exploded perspective view of Figure 2;
  • FIG. 4 is a combined structural view of a liner and a duct cover of a refrigerator according to an embodiment of the present invention
  • FIG. 5 is a combined structural view of a duct cover, a fan, and a fan cover of a refrigerator according to an embodiment of the present invention
  • FIG. 6 is an exploded structural view of a liner and a duct cover of a refrigerator according to an embodiment of the present invention
  • Fig. 7 is a schematic structural view of a liner of a refrigerator in accordance with one embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a refrigerator 100 according to an embodiment of the present invention.
  • the refrigerator 100 generally includes a case 110.
  • the case 110 defines at least one front open inner liner 120.
  • the inner liner 120 defines a storage compartment.
  • the inner circumference of the inner liner 120 is covered with a casing, and the outer casing is
  • the inner casing 120 is filled with a heat insulating material such as a foaming agent to prevent loss of cold.
  • the inner tank 120 is usually a plurality of, such as a refrigerating inner tank, a freezing inner tank, a temperature changing inner tank, etc., and the corresponding storage compartment is a refrigerating compartment 121, a freezing compartment 141, and a greenhouse.
  • the number and function of the specific liners 120 can be configured according to prior requirements.
  • the storage temperature of the refrigerating chamber 121 may be 2 to 9 ° C, or may be 4 to 7 ° C; the storage temperature of the freezing chamber 141 may be -22 to -14 ° C, or may be -20 to 16 ° C .
  • the freezing compartment 141 is disposed below the refrigerating compartment 121, and the changing greenhouse is disposed between the freezing compartment 141 and the refrigerating compartment 121.
  • the temperature within the freezer compartment 141 typically ranges from -14 °C to -22 °C.
  • the greenhouse can be adjusted to suit the needs of the food or as a storage room.
  • the storage compartment may be closed by a door body for opening and closing the storage compartment.
  • the refrigerating compartment door body 130, the freezing compartment door body 150, and the greenhouse door may be provided for each of the refrigerating compartment 121, the freezing compartment 141, and the changing greenhouse.
  • the door body can include a pivot type as well as a drawer type.
  • the pivoting door body can be pivotally opened by being hinged on one side of the front portion of the casing 110.
  • the refrigerator 100 can be a direct-cooling refrigerator or an air-cooled refrigerator.
  • the refrigerator 100 of the embodiment is an air-cooled refrigerator, which can use a compression refrigeration cycle as a cold source, and the refrigeration system can be a compressor, a condenser, and a throttle.
  • a refrigeration cycle system composed of a device, an evaporator 170, and the like.
  • the evaporator 170 is configured to provide a cooling capacity to the storage compartment. Since the refrigeration system and the refrigeration principle of the refrigerator 100 are well known and readily realized by those skilled in the art, in order not to obscure and obscure the inventive aspects of the present application, the refrigeration system itself will not be described later.
  • FIG. 2 is a combined structural view of an evaporator 170, a liner 120, a fan cover 191, a fan 190, and a duct cover 180 according to an embodiment of the present invention
  • FIG. 3 is an exploded perspective view of FIG. 2
  • FIG. 4 is a schematic view of FIG.
  • FIG. 5 is a combined structural view of the air duct cover 180, the fan 190, and the fan cover 191 of the refrigerator 100 according to an embodiment of the present invention.
  • the air duct 122 extends from the rear wall of the inner liner 120 to the inner side of the inner liner 120, and the evaporator 170 is disposed outside the rear wall of the inner tank 120, and is disposed in the cooling air passage 122.
  • the air, the fan 190 is disposed in the air duct 122 and located at a lower portion of the air duct 122, and is configured to cause air in the air passage 122 cooled by the evaporator 170 to flow into the storage compartment.
  • the inner liner 120 of the present embodiment may be a refrigerating inner tank, and correspondingly, the storage compartment is a refrigerating chamber 121.
  • the evaporator 170 of the present embodiment is located outside the rear wall of the inner liner 120 and can abut against the outer surface of the rear wall of the inner liner 120. Since the foaming layer is filled between the rear wall of the inner tank 120 and the outer casing of the tank, the evaporator 170 is located outside the rear wall of the inner tank 120.
  • a chamber is formed between the rear wall of the inner tank 120 and the foam layer, and evaporation
  • the heater 170 is located in the evaporator chamber between the rear wall of the inner tank 120 and the foaming layer, and the evaporator 170 indirectly cools the air in the air passage 122 through the rear wall of the inner tank 120.
  • the evaporator 170 Since the evaporator 170 is not in the air duct 122 and the humid air passes through the evaporator 170 of the air duct 122, it does not directly contact the evaporator 170, but exchanges heat with the rear wall surface of the inner tank 120 due to the inner tank 120.
  • the wall temperature of the rear wall is higher than the temperature of the evaporator 170, thereby reducing the amount of frosting of the humid air, ensuring that more water vapor is brought into the storage compartment instead of being mostly frozen by the evaporator 170 to form frost.
  • the humidity of the storage compartment is improved, and the humidity of the food stored in the storage compartment is maintained, and the food is prevented from being air-dried.
  • the refrigerator 100 further includes a duct cover 180.
  • the air duct cover 180 is disposed at a rear side of the storage compartment, and the air duct cover 180 and the rear wall of the inner tank 120 define a duct 122.
  • An air outlet 180a communicating with the storage compartment is formed in an upper portion and/or a side portion of the duct cover 180, and a lower portion of the duct cover 180 is formed with a return air port 180b communicating with the storage compartment.
  • a plurality of air outlets 180a are formed at the top of the air duct cover 180, and the air return port 180b can correspond to the air inlet of the fan 190 to be between the air duct 122 and the storage compartment.
  • a gas flow is formed. As shown in FIG.
  • the return air port 180b can be defined by a back style grille formed by the air duct cover 180, and the return style grille can be annular, that is, the lower part of the air duct cover 180 and the air inlet of the fan 190.
  • the position corresponding to the direction is formed with a loop-back style grille to define the return air opening 180b.
  • the bottom end of the air duct cover 180 may be formed with a downwardly protruding card member 180d.
  • the card member 180d may be a card board or a card block, and the bottom of the inner tank 120 corresponds to the air duct 122.
  • the position is formed with a card slot that cooperates with the card member 180d, and the card member 180d is engaged in the card slot to increase the stability of the installation of the air duct cover 180.
  • the card member 180d may be two, and the two card members 180d extend in the width direction of the duct cover 180.
  • the refrigerator 100 of the present embodiment further includes a fan cover 191.
  • the fan cover 191 is disposed on the wall surface of the air duct cover 180 facing the rear wall of the inner tank 120, and the fan cover 191 is spaced from the bottom of the inner tank 120. It is provided that the upper end of the fan cover 191 has a shutter 191a protruding in the direction of the duct cover 180, and the shutter 191a is spaced apart from the duct cover 180.
  • the fan 190 is disposed on the fan cover 191 and located in the space between the fan cover 191 and the air duct cover 180.
  • the fan 190 of the embodiment is a centrifugal fan, and the air inlet direction of the fan 190 faces the air return port of the air duct cover 180. 180b. Under the action of the fan 190, the airflow flowing out of the air return port 180b flows upward through the space between the fan cover 191 and the air duct cover 180, and is indirectly cooled by the evaporator 170 to enter the storage room, thereby forming a circulation of the airflow. .
  • FIG. 6 is an exploded structural view of the inner liner 120 and the air duct cover 180 of the refrigerator 100 according to an embodiment of the present invention
  • FIG. 7 is a schematic structural view of the inner liner 120 of the refrigerator 100 according to an embodiment of the present invention.
  • the rear wall of the inner liner 120 is formed with a recess 125 recessed toward the outer side.
  • the portion of the air duct cover 180 corresponding to the recess 125 protrudes into the storage compartment to facilitate the fan.
  • the arrangement of the cover 191, the fan 190 and the like provides a certain avoidance space. Due to the presence of the recess 125, the distance from the air duct cover 180 to the storage compartment is reduced, thereby reducing the structure of the fan 190, the fan cover 191, and the like.
  • most of the panel surface of the air duct cover 180 is flat, and the appearance is more flat, and the aesthetic appearance of the refrigerator 100 is improved while increasing the storage space of the storage compartment.
  • the refrigerator 100 needs to be defrosted periodically during use.
  • the bottom wall of the inner liner 120 is formed with a water-sink which is recessed downward at a position corresponding to the air passage 122, and a drain opening 124a is formed in the bottom of the water tank.
  • a large block of frost or defrosting water in the air passage 122 is dropped down into the sump and discharged through the drain port 124a.
  • the water outlet port 124a is connected with a water pipe, and the compressor room of the refrigerator 100 (the compressor room is generally located at the lower rear side of the freezing inner tank) is provided with a water receiving tray, and the defrosting water enters the water pipe through the water outlet 124a, and is transported by the water pipe.
  • the water in the water tray can absorb the heat released by the compressor and the condenser in the compressor chamber and evaporate.
  • the lower end surface of the fan cover 191 may be formed with a vent opening penetrating the air passage 122, thereby making the air passage above and below the fan 190 unobstructed.
  • the refrigerator 100 stops cooling, that is, the compressor is stopped.
  • the fan 190 is configured to operate at a lower rotational speed, and continuously humidifies the storage compartment. At the same time, it keeps the noise low; at the same time, it makes the temperature uniformity in the storage room better. That is to say, when the compressor is turned on, when the refrigerator 100 is cooled, the fan 190 is operated at the first rotation speed; when the compressor is turned off, the refrigerator 100 stops cooling, and the fan 190 is operated at the second rotation speed lower than the first rotation speed to continuously store the storage.
  • the compartment provides high humidity air to increase humidity and temperature uniformity in the storage room.
  • the shutter 191a of the fan cover 191 protrudes toward the air duct cover 180, which can block a part of the space above the fan 190 to prevent the defrosting water from falling onto the fan 190.
  • the shutter 191a is disposed obliquely, and the end surface of the shutter 191a facing the air duct cover 180 is higher than the end surface of the rear wall facing the inner liner 120, that is, the front end surface of the shutter 191a is higher than the rear end surface, or It is said that the shutter 191a extends obliquely forward and upward from the upper end of the fan cover 191, so that the defrosting water slides down the inclined surface of the shutter 191a to the rear of the fan cover 191, and drops into the lower sump to avoid defrosting water droplets. Fall to the fan 190.
  • "front" means a direction close to the door of the storage compartment.
  • a baffle 180c may be disposed above the fan cover 191.
  • the baffle 180c is formed or disposed on the wall surface of the air duct cover 180 facing the rear wall of the inner tank 120, and faces the rear wall of the inner tank 120. The direction extends and is spaced apart from the rear wall of the inner tank 120, and a part of the surface of the baffle 180c is located directly above the shutter 191a, that is, a part of the surface of the baffle 180c blocks a part of the surface of the shutter 191a.
  • the baffle 180c extends from the air duct cover 180 toward the rear wall of the inner casing 120
  • the shutter 191a extends from the upper end of the fan cover 191 toward the air duct cover 180
  • the fan 190 is disposed between the air duct cover 180 and the fan cover 191. Therefore, under the common definition of the baffle 180c and the shutter 191a, the upper space of the fan 190 is completely blocked, so that the defrosted water drop can be prevented from falling onto the fan 190, and the risk of the line short circuit of the fan 190 due to contact with water can be avoided. Increase the safety of the operation of the fan 190.
  • the baffle 180c can be disposed obliquely, and the end surface of the baffle 180c on the air duct cover 180 is higher than the end surface of the baffle 180c facing the rear wall of the inner tank 120, that is, the front end surface of the baffle 180c is higher than the baffle plate.
  • the rear end surface of the 180c, or the baffle 180c extends obliquely rearward and downward from the position of the air duct cover 180, and the defrosted water dripping on the baffle 180c slides down the inclined surface of the baffle 180c to the lower baffle
  • the shutter 191a below the 180c is further slid back and down along the shutter 191a to the lower sump.
  • the water pool can be a trapezoidal groove, and the water tank parallel to the rear wall of the inner tank 120 has a trapezoidal cross section, and the upper edge of the water tank has a trapezoidal length.
  • the edge, the lower edge of the sump is a trapezoidal short edge, which can also be understood as: the notch of the sump corresponds to the long edge of the trapezoid, the lower end surface 124 of the sump corresponds to the short edge of the trapezoid, the notch of the sump and the sump
  • the opposite two oblique end faces 123 between the lower end faces 124 correspond to the two waists of the trapezoid.
  • the drain port 124a is formed on the lower end surface 124 of the water tank, and the defrosted water drops into the water pool, slides along the inclined end surface 123 of the water tank to the drain port 124a, and is discharged through the drain port 124a, thereby facilitating the timely defrosting water. discharge.
  • the positions of the two inclined end faces 123 of the water pool adjacent to the drain opening 124a may be respectively formed with upwardly protruding water blocking blocks 123a, and each water blocking block 123a is formed by the rear wall of the inner tank 120. Extending to the front end surface of the water tank to block the defrosting water that slides down along the inclined end surface 123, thereby forming a water accumulation area by the water blocking block 123a and the inclined end surface 123 where the water blocking block 123a is located, so as to make the water accumulation area After the frost water is accumulated, the defrosting water flows into the drain port 124a beyond the water block 123a.
  • the water block 123a can be directly formed on the upper surface of the inclined end surface 123 of the water tank, that is, the water block 123a protrudes upward from the upper surface of the inclined end surface 123 of the water tank.
  • the water block 123a may also be recessed upward by the lower surface of the inclined end surface 123 of the water tank, that is, the lower surface of the inclined end surface 123 of the water tank is recessed upward (as indicated by a in FIG. 2), thereby
  • the upper surface of the inclined end surface 123 forms a water block 123a.
  • the two water blocking blocks 123a located at the two inclined end faces 123 of the sump can be oppositely disposed, that is, the two water blocking blocks 123a are symmetrically disposed with respect to the drain opening 124a.
  • the upper end surface of the water block 123a is lower than the upper edge of the front end surface of the water tank, so that the water accumulated in the water accumulation area does not pass over the front end surface of the water pool, and the accumulated water is prevented from infiltrating into the storage compartment.
  • the above-mentioned card slot 126 engaging with the card member 180d at the bottom end of the air duct cover 180 may be formed on the front end surface of the water pool, that is, the front end surface of the water tank
  • the card slot 126 is formed to cooperate with the card member 180d, and the card member 180d is engaged in the card slot 126, which increases the stability of the installation of the air duct cover 180.
  • the inner tank 120 is a refrigerating inner tank, and correspondingly, the storage compartment is a refrigerating compartment 121, and the bottom of the refrigerating inner tank is formed with a duct 122 and a rear wall of the refrigerating inner tank.
  • the humidifying air passage extending forward is also understood to be defined by the humidifying air routing the bottom wall of the refrigerating chamber 121 and the bottom wall of the refrigerating inner tank, and the arrangement of the humidifying air passage does not occupy the space of the refrigerating chamber 121.
  • Fan 190 should be placed adjacent to the humidifying air path.
  • the bottom wall of the humidifying air passage is formed with a water storage area that is recessed downward, and a bottom wall of the refrigerating chamber 121 is formed with an opening at a position corresponding to the water storage area, thereby communicating the water storage area with the refrigerating chamber 121.
  • the fan 190 is also configured to cause a portion of the return air from the refrigerating chamber 121 to be directed to the humidifying air passage.
  • a part of the return air flows upward under the action of the fan 190, and is directly or indirectly cooled by the evaporator 170, and then enters the refrigerating chamber 121, and a part of the return air is blown to the water storage area through the humidifying air path, and is stored.
  • the water in the water zone evaporates and enters the refrigerating compartment 121 through the opening formed in the bottom wall of the refrigerating compartment 121, so that the humid air flows in the refrigerating compartment 121, improving the humidity of the entire refrigerating compartment 121.
  • the water storage zone may be located at a position near the front side of the humidifying air passage, that is, the water storage zone is disposed closer to the refrigerating compartment door body 130.
  • the water storage area can be used as a water tank for directly accommodating water, or a separate water tank is arranged in the water storage area.
  • the outer periphery of the opening formed at the bottom wall of the refrigerating chamber 121 corresponding to the water storage area is covered with a detachable humidifying cover plate, and the humidifying cover plate is formed with a plurality of venting holes through which the humid air evaporated in the water storage area passes. The vent hole enters the refrigerating chamber 121 to raise the humidity of the refrigerating chamber 121.
  • the refrigerator 100 may further include a damper and a humidity sensor, and the humidity sensor is disposed in the refrigerating chamber 121 and configured to monitor the humidity of the refrigerating chamber 121.
  • the damper is disposed on the front side of the air duct 122 and located at the rear side of the humidifying air passage. The damper can controlly open or close the humidifying air passage according to the humidity of the refrigerating chamber 121 monitored by the humidity sensor to flexibly adjust the humidity of the refrigerating chamber 121.
  • the damper is configured to open the humidifying air passage when the humidity of the refrigerating chamber 121 is lower than the set value, to penetrate the humidifying air passage and the refrigerating duct 122, and the fan 190 blows a part of the return air flowing out of the refrigerating chamber 121 through the humidifying air passage.
  • the humid air evaporated in the water storage area enters the refrigerating chamber 121, and humidifies the refrigerating chamber 121, so that the humidity of the refrigerating chamber 121 can be flexibly adjusted according to the humidity of the refrigerating chamber 121.
  • the bottom wall of the humidifying air passage is located at the front side of the damper and is located at a position on the rear side of the water storage area, and is formed with an upwardly projecting boss, and the humidifying wind is routed to the front side of the rear wall of the refrigerating inner tank.
  • the direction is recorded as the longitudinal direction of the humidifying air passage, and the boss extends from one side in the width direction of the humidifying air passage to the other side.
  • the bottom wall of the refrigerating chamber 121 protrudes upward from the position corresponding to the boss to provide a relief space for the boss, and the upper end surface of the boss is spaced apart from the bottom wall of the refrigerating chamber 121 to facilitate airflow in the humidifying air passage, and the boss
  • the upper end surface is higher than the upper end surface of the opening formed at the position corresponding to the bottom wall of the refrigerating chamber 121 and the water storage area, thereby preventing the user from inadvertently pouring too much water into the water storage area and causing the damper to be immersed in water.
  • 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 compartment door 130.
  • the refrigerating drawer is spaced apart from the bottle holder, and the refrigerating drawer is spaced apart from the inner wall of the refrigerating chamber 121 to facilitate the flow of air in the refrigerating chamber 121.
  • the refrigerating drawer is located directly in front of the air return port 180b of the air duct cover 180, and the user does not observe the return air port 180b from the front side to increase the aesthetics of the refrigerator 100.
  • the area in which the opening on the bottom wall of the refrigerating compartment 121 is located or the area in which the plurality of venting holes on the humidifying cover are located is opposite to the spacing area between the refrigerating drawer and the bottle holder, that is, the refrigerated drawer and the bottle holder
  • the space between the partitions is located on the bottom wall of the refrigerating compartment 121 or directly above the plurality of vent holes on the humidifying cover to form a humid air circulation space.
  • the vertical height of the bottom wall of the refrigerating drawer and the refrigerating chamber 121 is greater than or equal to 20 mm, and the horizontal distance between the refrigerating drawer and the bottle holder is greater than or equal to 20 mm to fully ensure the smoothness of the humidified air supply.
  • the fan 190 is disposed at the lower portion of the air duct 122, which changes the position of the fan 190 in the prior art, and avoids the problem that the fan 190 is disposed on the upper portion of the air duct 122 and takes up a large space and affects the appearance of the refrigerator 100.
  • the evaporator 170 is disposed on the outer side of the rear wall of the inner tank 120, and is configured to indirectly cool the air in the air passage 122. When the humid air passes through the evaporator 170 of the air duct 122, the air is not directly in contact with the evaporator 170. Rather, it exchanges heat with the wall surface of the inner wall of the inner liner 120.
  • the temperature of the wall surface of the inner wall of the inner liner 120 is higher than the temperature of the evaporator 170, the amount of frost of the humid air is reduced, and more water vapor is brought into the wall.
  • the storage compartment rather than being mostly frozen by the evaporator 170, forms frost, thereby increasing the humidity of the storage compartment, facilitating the maintenance of the humidity of the food stored in the storage compartment and preventing the food from being dried.
  • a water tank having a special structure is used, and the water pool is formed with a water accumulation zone, and the fan 190 is close to the water tank.
  • the return air passes through the sump. A part of the water vapor in the water accumulation area of the water tank is taken back into the storage room by the return air, which accelerates the evaporation of the defrosting water in the water storage area, further improving the humidity of the storage room.
  • the upper end of the fan cover 191 has a shutter 191a protruding toward the air duct cover 180, and the fan 190 at the lower portion thereof is blocked by the shutter 191a to prevent the air passage 122 from being immersed in the air passage 122.
  • the frost water drops onto the fan 190, avoiding the risk of the line 190 being short-circuited due to contact with the water.
  • the fan cover 191 further has a baffle 180c extending upward from the direction of the air duct cover 180 toward the rear wall of the inner casing 120, and a part of the baffle plate 180c.
  • the surface is located directly above the shutter 191a, so that the baffle 180c blocks a part of the surface of the shutter 191a, so that the space of the upper part of the fan 190 is completely blocked by the baffle 180c and the shutter 191a, thereby preventing the frosting water from falling onto the fan 190.

Abstract

一种冰箱，包括内胆（120）、风道（122）、蒸发器（170）和风机（190），内胆（120）内限定有储物间室，风道（122）在内胆（120）内沿内胆（120）后壁由下而上延伸，蒸发器（170）设置于内胆（120）后壁的外侧，配置为间接冷却风道（122）内的空气，风机（190），设置于风道（122）内且位于风道（122）的下部，配置为促使经蒸发器（170）冷却后的风道内的空气流入储物间室中；该冰箱的上述结构避免了风机（190）在风道（122）上部占用较大空间，影响美观性，同时降低了湿空气的结霜量，保证有较多的水蒸气被带入到储物间室中而不是大部分被蒸发器（170）冻结形成结霜，提升了储物间室的湿度，避免食品被风干。

Description

冰箱 技术领域
本发明涉及家电技术领域，特别是涉及冰箱。
背景技术
风机是风冷式冰箱必不可少的一部分，其作用在于通过强制对流提高蒸发器的换热效率。为避免风道内的化霜水滴落到风机上，一般来说，风机设置于蒸发器的上部，然而，这种结构的冰箱，风机及风道结构占用了间室相当一部分容积，降低了冰箱的容积率；其次，风机突出风道结构，不美观；另外，位于风道下部的排水口距离风机较远，回风从风道底部吹入风道后距离排水口距离较远，排水口有一定的结冰风险；并且通过积水槽上方的空气流速低，加湿效果差。
发明内容
鉴于上述问题，本发明的一个目的是要提供一种克服上述问题或者至少部分地解决上述问题的冰箱。
本发明一个进一步的目的是提高冰箱的加湿效果和增加冰箱的容积。
本发明提供了一种冰箱，包括：
内胆，其内限定有储物间室；
风道，其在内胆内沿内胆后壁由下而上延伸；
蒸发器，设置于内胆后壁的外侧，配置为间接冷却风道内的空气；
风机，设置于风道内且位于风道的下部，配置为促使经蒸发器冷却后的风道内的空气流入储物间室中。
可选地，内胆的底壁与风道对应的位置形成有向下凹陷的积水槽；
积水槽的槽底形成有排水口，以便于排出风道内的化霜水。
可选地，积水槽为梯形槽，且积水槽平行于内胆后壁的截面呈梯形；
积水槽的上边缘为梯形的长边缘，积水槽的下边缘为梯形的短边缘；
排水口形成于积水槽的下端面上。
可选地，风机为离心风机，风机位于排水口的上部；
积水槽的两个斜端面上临近排水口的位置分别形成有向上凸出的挡水块；并且
每个挡水块由内胆后壁延伸至积水槽的前端面，以利用挡水块与该挡水块所在的斜端面构成积水区，使得积水区的水满后越过挡水块流入排水口。
可选地，挡水块的上端面低于积水槽的前端面的上边缘，以避免积水区的水越过积水槽的前端面的上边缘渗入储物间室内。
可选地，冰箱，还包括：
风道盖板，设置于储物间室的后侧，与内胆后壁共同限定出风道。
可选地，风机为离心风机；
风道盖板的上部和/或侧部形成有与储物间室连通的出风口；
风道盖板的下部与风机的进风口对应的位置形成有与储物间室连通的回风口。
可选地，冰箱，还包括：
风机罩，设置于风道盖板朝向内胆后壁的壁面上；
风机设置于风机罩上，且位于风机罩与风道盖板之间的空间；
风机罩的上端具有向风道盖板方向凸出的遮板；
遮板与风道盖板间隔设置，以便于风道内的气流流通；
风机罩的下端面形成有与风道贯通的通风口，以使得风机的上部和下部的风路连通，以便于在风机的作用下，部分回风通过通风口流向下方的积水槽，之后再向上吹送进入储物间室中，从而提高储物间室的湿度。
可选地，冰箱，还包括：
挡板，位于风机罩的上方，形成或设置于风道盖板朝向内胆后壁的壁面上，并向内胆后壁方向延伸，且与内胆后壁间隔设置；并且
挡板的部分板面位于遮板的正上方，以使得挡板遮挡遮板的部分板面，以避免风道内的化霜水下落到风机上。
可选地，遮板呈倾斜设置，且遮板朝向风道盖板的端面高于遮板朝向内胆后壁的端面；
挡板呈倾斜设置，且挡板位于风道盖板上的端面高于挡板朝向内胆后壁的端面。
本发明的冰箱，风机设置于风道的下部，改变了现有技术中风机的位置，避免了风机布置在风道上部占用较大空间和影响冰箱美观性的问题；并且，蒸发器设置于内胆后壁的外侧，配置为间接冷却风道内的空气，湿空气通过风道的蒸发器制冷区时，并不是直接接触到蒸发器，而是与内胆的后壁壁面 换热，由于内胆后壁壁面温度高于蒸发器的温度，因而降低了湿空气的结霜量，保证有较多的水蒸气被带入到储物间室中而不是大部分被蒸发器冻结形成结霜，从而提升了储物间室的湿度，便于保持存储在储物间室中食品的湿度，避免食品被风干。
进一步地，本发明的冰箱中，采用特殊结构的积水槽，且积水槽形成有积水区，风机靠近积水槽的位置，在制冷模式下，风机运转时，回风通过集水槽，积水槽的积水区中的一部分水汽被回风带走进入储物间室中，加速了积水区中化霜水蒸发，进一步提高了储物间室的湿度。
更进一步地，本发明的冰箱中，风机罩的上端具有向风道盖板方向凸出的遮板，通过遮板遮挡其下部的风机，避免风道内的化霜水滴落到风机上，避免风机因接触到水而发生线路短路的风险。
更进一步地，本发明的冰箱中，风机罩的上方还具有挡板，挡板由风道盖板的方向向内胆后壁的方向延伸，挡板的部分板面位于遮板的正上方，使得挡板遮挡遮板的部分板面，从而利用挡板和遮板将风机上部的空间进行完全遮挡，避免化霜水滴落到风机上，增加风机运行的安全性。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的冰箱的示意性结构图；
图2是根据本发明一个实施例的冰箱的蒸发器、内胆、风机罩、风机和风道盖板的组合结构图；
图3是图2的分解示意图；
图4是根据本发明一个实施例的冰箱的内胆和风道盖板的组合结构图；
图5是根据本发明一个实施例的冰箱的风道盖板、风机和风机罩的组合结构图；
图6是根据本发明一个实施例的冰箱的内胆和风道盖板的分解结构图；以及
图7是根据本发明一个实施例的冰箱的内胆的示意性结构图。
具体实施方式
本实施例首先提供了一种冰箱100，图1是根据本发明一个实施例的冰箱100的示意性结构图。
冰箱100一般性地可包括箱体110，箱体110内限定有至少一个前部敞开的内胆120，内胆120内限定有储物间室，内胆120的外周包覆有外壳，外壳与内胆120之间填充有保温材料，例如发泡剂，以避免冷量散失。内胆120通常为多个，如冷藏内胆、冷冻内胆、变温内胆等，对应的储物间室为冷藏室121、冷冻室141、变温室。具体的内胆120的数量和功能可根据预先的需求进行配置。在一些实施例中，冷藏室121的保藏温度可为2～9℃，或者可为4～7℃；冷冻室141的保藏温度可为-22～-14℃，或者可为-20～16℃。冷冻室141设置于冷藏室121的下方，变温室设置于冷冻室141和冷藏室121之间。冷冻室141内的温度范围一般在-14℃至-22℃。变温室可根据需求进行调整，以储存合适的食物，或者作为保鲜储藏室。
上述储物间室可以由门体进行封闭，这些门体用于开闭储物间室。例如可以为冷藏室121、冷冻室141、变温室分别设置冷藏室门体130、冷冻室门体150、变温室门体。门体可以包括枢转式以及抽屉式。其中枢转式门体可以通过铰链设置于箱体110前部的一侧，以枢转的方式开启。
冰箱100可以为直冷式冰箱或者风冷式冰箱，本实施例的冰箱100为风冷式冰箱，其可以使用压缩式制冷循环作为冷源，制冷系统可为由压缩机、冷凝器、节流装置和蒸发器170等构成的制冷循环系统。蒸发器170配置成向储物间室内提供冷量。由于制冷系统以及冰箱100的制冷原理是是本领域技术人员习知且易于实现的，为了不掩盖和模糊本申请的发明点，后文对制冷系统本身不做赘述。
图2是根据本发明一个实施例的蒸发器170、内胆120、风机罩191、风机190和风道盖板180的组合结构图，图3是图2的分解示意图，图4是根据本发明一个实施例的冰箱100的内胆120和风道盖板180的组合结构图，图5是根据本发明一个实施例的冰箱100的风道盖板180、风机190和风机罩191的组合结构图。
特别地，本实施例的冰箱100，风道122在内胆120内沿内胆120后壁 由下而上延伸，蒸发器170设置于内胆120后壁的外侧，配置为冷却风道122内的空气，风机190设置于风道122内且位于风道122的下部，配置为促使经蒸发器170冷却后的风道122内的空气流入储物间室中。
本实施例的内胆120可为冷藏内胆，对应地，储物间室为冷藏室121。本实施例的蒸发器170位于内胆120后壁的外侧，可与内胆120后壁的外表面贴靠。由于内胆120后壁与箱体外壳之间填充有发泡层，蒸发器170位于内胆120后壁的外侧，也可理解为，内胆120后壁与发泡层之间形成室，蒸发器170位于内胆120后壁与发泡层之间的蒸发器室中，蒸发器170通过内胆120后壁间接地冷却风道122内的空气。
由于蒸发器170不在风道122内，湿空气通过风道122的蒸发器170制冷区时，并不是直接接触到蒸发器170，而是与内胆120的后壁壁面换热，由于内胆120后壁壁面温度高于蒸发器170的温度，因而降低了湿空气的结霜量，保证有较多的水蒸气被带入到储物间室中而不是大部分被蒸发器170冻结形成结霜，从而提升了储物间室的湿度，便于保持存储在储物间室中食品的湿度，避免食品被风干。
本实施例中，冰箱100还包括风道盖板180，风道盖板180设置于储物间室的后侧，风道盖板180与内胆120后壁共同限定出风道122。风道盖板180的上部和/或侧部形成有与储物间室连通的出风口180a，风道盖板180的下部形成有与储物间室连通的回风口180b。如图5所示，本实施例中，风道盖板180的顶部形成有多个出风口180a，回风口180b可与风机190的进风口对应，以在风道122和储物间室之间形成气流循环。如图4所示，回风口180b可由风道盖板180形成的回风格栅限定而成，回风格栅可呈环状，也即是风道盖板180的下部与风机190的进风方向对应的位置形成有环形回风格栅，以限定出回风口180b。
如图4、图5所示，风道盖板180的底端可形成有向下凸出的卡件180d，卡件180d可为卡板或卡块，内胆120底部与风道122对应的位置形成有与卡件180d配合的卡槽，卡件180d卡合在卡槽中，以增加风道盖板180安装的稳定性。卡件180d可为两个，两个卡件180d沿风道盖板180的宽度方向延伸。
如图3、图5所示，本实施例的冰箱100还包括风机罩191，风机罩191设置于风道盖板180朝向内胆120后壁的壁面上，风机罩191与内胆120底 部间隔设置，风机罩191的上端具有向风道盖板180方向凸出的遮板191a，遮板191a与风道盖板180间隔设置。
风机190设置于风机罩191上，并位于风机罩191与风道盖板180之间的空间，本实施例的风机190为离心风机，风机190的进风方向朝向风道盖板180的回风口180b。在风机190的作用下，从回风口180b流出的气流经过风机罩191与风道盖板180之间的间隔空间向上流动，经蒸发器170间接冷却后进入储物间室，由此形成气流循环。
图6是根据本发明一个实施例的冰箱100的内胆120和风道盖板180的分解结构图，图7是根据本发明一个实施例的冰箱100的内胆120的示意性结构图。
如图6所示，内胆120后壁靠近下部的位置可形成有向外侧凹陷的凹槽125，风道盖板180与该凹槽125对应的部分向储物间室内凸出，便于为风机罩191、风机190等结构的布置提供一定的避让空间，由于凹槽125的存在，减小了风道盖板180向储物间室内凸出的距离，从而减少风机190、风机罩191等结构的布置对储物间室空间的影响。并且，风道盖板180的大部分板面为平面，外观更加平整，在增加储物间室存储空间的同时，提升冰箱100的美观性。
由于风道122内壁会因结霜而影响风道122内空气与蒸发器170的间接换热效果。因此，冰箱100在使用过程中，需定期对其进行除霜操作。
本实施例中，如图6、图7所示，内胆120的底壁与风道122对应的位置形成有向下凹陷的积水槽，积水槽的槽底形成有排水口124a。冰箱100在除霜过程中，风道122内大块的霜块或化霜水向下滴落至积水槽中，经排水口124a排出。一般地，排水口124a连接有水管，冰箱100的压缩机室(压缩机室一般位于冷冻内胆的下部后方)中设置有接水盘，化霜水经排水口124a进入水管中，由水管输送至接水盘中，接水盘中的水可吸收压缩机室中压缩机、冷凝器释放的热量而蒸发。
风机罩191的下端面可形成有与风道122贯通的通风口，由此使得风机190的上方和下方的风路通畅。冰箱100制冷时，在风机190的作用下，由风道盖板180的回风口180b流出的温度较高的回风的一部分吹向上方的蒸发器170，另一部分吹向下方的积水槽，之后再反向吹向蒸发器170，由此加速了积水槽中化霜水的蒸发速度，一部分水汽被回风带走进入储物间室 中，加速了积水区中化霜水蒸发，提高了储物间室的湿度；并且，吹向积水槽的回风温度较高，避免了排水口124a温度过低被冻结的风险。
当冰箱100的储物间室的温度降低到设定温度时，冰箱100停止制冷，也即是压缩机停机，此时，风机190配置为以较低转速运转，在持续向储物间室加湿的同时保持较低的噪音；同时使得储物间室内的温度均匀性更好。也即是说，压缩机开机，冰箱100制冷时，风机190以第一转速运行；压缩机关机，冰箱100停止制冷，风机190以低于第一转速的第二转速运行，以持续向储物间室提供高湿度空气，增加储物间室内的湿度和温度均匀性。
本实施例中，再次参见图5，风机罩191的遮板191a向风道盖板180方向凸出，恰好可遮挡风机190上部的部分空间，避免化霜水滴落到风机190上。优选地，遮板191a呈倾斜设置，遮板191a朝向风道盖板180的端面高于遮挡朝向内胆120后壁的端面，也即是说，遮板191a的前端面高于后端面，或者说，遮板191a由风机罩191的上端向前上方倾斜延伸，便于化霜水顺着遮板191a的倾斜面滑落到风机罩191的后方，滴落至下部的积水槽中，避免化霜水滴落到风机190上。本实施例中，“前”是指靠近储物间室门体的方向。
本实施例中，再次参见图5，风机罩191的上方可设置挡板180c，挡板180c形成或设置于风道盖板180朝向内胆120后壁的壁面上，并向内胆120后壁方向延伸，且与内胆120后壁间隔设置，并且，挡板180c的部分板面位于遮板191a的正上方，也即是说，挡板180c的部分板面遮挡遮板191a的部分板面。由于挡板180c由风道盖板180向内胆120后壁方向延伸，遮板191a由风机罩191的上端向风道盖板180方向延伸，风机190在风道盖板180与风机罩191之间，由此在挡板180c和遮板191a的共同限定下，完全遮挡风机190的上部空间，从而可避免化霜水滴落到风机190上，避免风机190因接触到水而发生线路短路的风险，增加风机190运行的安全性。
挡板180c可呈倾斜设置，且挡板180c位于风道盖板180上的端面高于挡板180c朝向内胆120后壁的端面，也即是说，挡板180c的前端面高于挡板180c的后端面，或者说，挡板180c由风道盖板180的位置向后下方倾斜延伸，滴落在挡板180c的化霜水沿挡板180c的倾斜斜面向后下方滑落至位于挡板180c下方的遮板191a上，并进一步沿遮板191a向后下方滑落至下部的积水槽中。
本实施例的其中一个实施方式中，如图6、图7所示，积水槽可为梯形槽，且积水槽平行于内胆120后壁的截面呈梯形，积水槽的上边缘为梯形的长边缘，积水槽的下边缘为梯形的短边缘，也可理解为：积水槽的槽口对应与梯形的长边缘，积水槽下端面124对应于梯形的短边缘，积水槽的槽口和积水槽的下端面124之间的相对的两个斜端面123对应于梯形的两个腰。排水口124a形成于积水槽的下端面124上，化霜水滴落到积水槽中，沿积水槽的斜端面123滑落至排水口124a处，经排水口124a排出，由此便于化霜水的及时排出。
本实施例的其中一个实施方式中，积水槽的两个斜端面123上临近排水口124a的位置可分别形成有向上凸出的挡水块123a，每个挡水块123a由内胆120后壁延伸至积水槽的前端面，以阻隔沿斜端面123向下滑落的化霜水，从而利用挡水块123a与该挡水块123a所在的斜端面123构成积水区，使得积水区的化霜水积满后，化霜水越过挡水块123a流入排水口124a中。
挡水块123a可直接形成于积水槽的斜端面123的上表面，也即是说，挡水块123a由积水槽的斜端面123的上表面向上凸出。挡水块123a也可由积水槽的斜端面123的下表面向上凹陷而成，也即是说，积水槽的斜端面123的下表面向上凹陷(如图2中a所指示的位置)，从而在斜端面123的上表面形成了挡水块123a。位于积水槽两个斜端面123的两个挡水块123a可相对设置，也即是说，两个挡水块123a相对于排水口124a对称设置。
挡水块123a的上端面低于积水槽的前端面的上边缘，使得积水区的积水不会越过积水槽的前端面，避免积水渗入到储物间室内。
本实施例的其中一个实施方式中，上述所说的与风道盖板180底端的卡件180d配合的卡槽126可形成于积水槽的前端面上，也即是说，积水槽的前端面形成与卡件180d配合的卡槽126，卡件180d卡合在卡槽126中，增加了风道盖板180安装的稳定性。
本实施例的其中一个实施方式中，内胆120为冷藏内胆，对应地，储物间室为冷藏室121，并且冷藏内胆的底部形成有与风道122贯通并由冷藏内胆后壁向前侧延伸的加湿风路，也可理解为，加湿风路由冷藏室121底壁和冷藏内胆底壁限定而成，加湿风路的设置不会占用冷藏室121的空间。风机190应临近加湿风路设置。加湿风路的底壁形成有向下凹陷的储水区，冷藏室121的底壁与储水区对应的位置形成有开口，从而将储水区与冷藏室121 连通。
风机190还配置为促使将冷藏室121的部分回风引导至加湿风路。在风机190运行的过程中，一部分回风在风机190的作用下向上流动经被蒸发器170直接或间接的冷却后进入冷藏室121，一部分回风则通过加湿风路吹向储水区，储水区中的水蒸发后通过冷藏室121底壁形成的开口进入冷藏室121中，从而使得湿空气在冷藏室121中流动，提高了整个冷藏室121的湿度。
储水区可位于加湿风路靠近前侧的位置，也即是说，储水区更加靠近冷藏室门体130布置。储水区可作为直接容纳水的水槽，或者，储水区中布置有独立的水盒。冷藏室121的底壁与储水区对应的位置处形成的开口的外周覆盖有可拆卸的加湿盖板，加湿盖板上形成有多个透气孔，储水区蒸发的湿空气通过该多个透气孔进入冷藏室121中，提升冷藏室121的湿度。
本发明的一个实施例中，冰箱100还可包括风门和湿度传感器，湿度传感器设置于冷藏室121内，配置为监测冷藏室121的湿度。风门设置于风道122的前侧并位于加湿风路的后侧，风门可根据湿度传感器监测的冷藏室121的湿度大小而受控打开或关闭加湿风路，以灵活调整冷藏室121的湿度。例如，风门配置为当冷藏室121的湿度低于设定值时打开加湿风路，将加湿风路与冷藏风道122贯通，风机190将流出冷藏室121的部分回风通过加湿风路吹向储水区中，储水区蒸发的湿空气进入冷藏室121中，对冷藏室121进行加湿，从而可根据冷藏室121的湿度需要灵活调整冷藏室121的湿度。
本发明的一个实施例中，加湿风路的底壁位于风门的前侧且位于储水区后侧的位置形成有向上凸出的凸台，加湿风路由冷藏内胆后壁向前侧延伸的方向记为加湿风路的长度方向，凸台由加湿风路宽度方向的一侧延伸至另一侧。冷藏室121底壁与凸台对应的位置向上凸出，以为凸台提供避让空间，凸台的上端面与冷藏室121的底壁间隔设置，以便于气流在加湿风路内流通，并且凸台的上端面高于冷藏室121底壁与储水区对应的位置形成的开口的上端面，从而可防止用户疏忽时向储水区倒入过多水而导致风门被水浸泡的风险。
冷藏室121可由分隔壁分隔形成位于分隔壁下部的第一存储间室和位于分隔壁上部的第二存储间室。冰箱100还包括设置于第一存储间室中的冷藏抽屉和设置于冷藏室门体130内侧与冷藏抽屉对应的位置的瓶座。冷藏抽屉 与瓶座间隔一定距离，冷藏抽屉与冷藏室121的内壁间隔设置，以便于冷藏室121中的气流流通顺畅。可选地，冷藏抽屉位于风道盖板180的回风口180b的正前方，用户从前侧观测不到回风口180b，以增加冰箱100的美观性。
特别地，冷藏室121底壁上的开口所在的区域或者加湿盖板上的多个透气孔所在的区域与冷藏抽屉和瓶座之间的间隔区域相对，也即是说，冷藏抽屉和瓶座之间间隔区域处于冷藏室121底壁上的开口或者加湿盖板上的多个透气孔的正上方，以形成湿空气流通空间。并且，冷藏抽屉与冷藏室121底壁的竖直高度大于或等于20毫米，冷藏抽屉与瓶座的水平距离大于或等于20毫米，以充分保证加湿送风的流畅。
本实施例的冰箱100，风机190设置于风道122的下部，改变了现有技术中风机190的位置，避免了风机190布置在风道122上部占用较大空间和影响冰箱100美观性的问题；并且，蒸发器170设置于内胆120后壁的外侧，配置为间接冷却风道122内的空气，湿空气通过风道122的蒸发器170制冷区时，并不是直接接触到蒸发器170，而是与内胆120的后壁壁面换热，由于内胆120后壁壁面温度高于蒸发器170的温度，因而降低了湿空气的结霜量，保证有较多的水蒸气被带入到储物间室中而不是大部分被蒸发器170冻结形成结霜，从而提升了储物间室的湿度，便于保持存储在储物间室中食品的湿度，避免食品被风干。
进一步地，本实施例的冰箱100中，采用特殊结构的积水槽，且积水槽形成有积水区，风机190靠近积水槽的位置，在制冷模式下，风机190运转时，回风通过集水槽，积水槽的积水区中的一部分水汽被回风带走进入储物间室中，加速了积水区中化霜水蒸发，进一步提高了储物间室的湿度。
更进一步地，本实施例的冰箱100中，风机罩191的上端具有向风道盖板180方向凸出的遮板191a，通过遮板191a遮挡其下部的风机190，避免风道122内的化霜水滴落到风机190上，避免风机190因接触到水而发生线路短路的风险。
更进一步地，本实施例的冰箱100中，风机罩191的上方还具有挡板180c，挡板180c由风道盖板180的方向向内胆120后壁的方向延伸，挡板180c的部分板面位于遮板191a的正上方，使得挡板180c遮挡遮板191a的部分板面，从而利用挡板180c和遮板191a将风机190上部的空间进行完全遮挡，避免化霜水滴落到风机190上，增加风机190运行的安全性。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种冰箱，包括：
    内胆，其内限定有储物间室；
    风道，其在所述内胆内沿所述内胆后壁由下而上延伸；
    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；
    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。
  2. 根据权利要求1所述的冰箱，其中
    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。
  3. 根据权利要求2所述的冰箱，其中
    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。
  4. 根据权利要求3所述的冰箱，其中
    所述风机为离心风机，所述风机位于所述排水口的上部；
    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。
  5. 根据权利要求4所述的冰箱，其中
    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。
  6. 根据权利要求2所述的冰箱，还包括：
    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。
  7. 根据权利要求6所述的冰箱，其中
    所述风机为离心风机；
    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；
    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。
  8. 根据权利要求7所述的冰箱，还包括：
    风机罩，设置于所述风道盖板朝向所述内胆后壁的壁面上；
    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；
    所述风机罩的上端具有向所述风道盖板方向凸出的遮板；
    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；
    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。
  9. 根据权利要求8所述的冰箱，还包括：
    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
    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。
  10. 根据权利要求9所述的冰箱，其中
    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；
    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。
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