WO2020173360A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2020173360A1
WO2020173360A1 PCT/CN2020/075887 CN2020075887W WO2020173360A1 WO 2020173360 A1 WO2020173360 A1 WO 2020173360A1 CN 2020075887 W CN2020075887 W CN 2020075887W WO 2020173360 A1 WO2020173360 A1 WO 2020173360A1
Authority
WO
WIPO (PCT)
Prior art keywords
return air
section
evaporator
diversion
space
Prior art date
Application number
PCT/CN2020/075887
Other languages
English (en)
French (fr)
Inventor
王晶
朱小兵
曹东强
姜明亮
李月振
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
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 青岛海尔电冰箱有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔电冰箱有限公司
Priority to ES20763876T priority Critical patent/ES2943316T3/es
Priority to AU2020227856A priority patent/AU2020227856B2/en
Priority to EP20763876.8A priority patent/EP3929511B1/en
Priority to US17/434,375 priority patent/US20220154997A1/en
Publication of WO2020173360A1 publication Critical patent/WO2020173360A1/zh

Links

Classifications

    • 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
    • F25D17/08—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 using ducts
    • 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
    • F25D17/065—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 with 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
    • 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
    • F25D21/04—Preventing the formation of frost or condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/066—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0651—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the bottom
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0683—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans not of the axial type

Definitions

  • the present invention relates to the technical field of home appliances, in particular to a refrigerator. Background technique
  • the evaporator In existing refrigerators, the evaporator is generally located at the rear of the lowermost storage space, which reduces the front and rear volume of the storage space, limits the depth of the storage space, and is inconvenient for placing large and difficult-to-separate items. Summary of the invention
  • an object of the present invention is to provide a refrigerator that overcomes the above problems or at least partially solves the above problems.
  • a further object of the present invention is to improve the heat exchange efficiency between the return air and the evaporator and facilitate the discharge of condensed water.
  • the present invention provides a refrigerator, including:
  • the box including the storage liner at the bottom;
  • the top cover separates the storage liner into a storage space at the top and a cooling space at the bottom in the storage liner;
  • At least one return air hood arranged at the front end of the top cover, and together with the top cover and the bottom wall of the storage liner to define a cooling space;
  • the evaporator is arranged in the cooling space and configured to cool the airflow entering the cooling space to form a cooling airflow;
  • the return air hood includes:
  • the return air frame at the front side has a first opening formed on the front wall and an open rear end;
  • the return air rear cover is inserted into the return air frame from the opening at the rear end of the return air frame, and is set to separate the first opening into a first front return air inlet located above and a second front return air inlet located below. It is convenient for the return air of the storage space to return to the cooling space through the first front return air inlet and the second front return air inlet.
  • a first return air duct located behind the first front return air inlet is defined between the return air frame and the return air rear cover, and the return air rear cover is formed with a first return air duct located behind the first front return air inlet and the first return air Air duct connection ⁇ second opening, so that the return air flow entering through the first front return air inlet enters the cooling space through the second opening;
  • a second return air duct located behind the second front return air inlet is also defined between the return air frame and the return air rear cover, so that the return air flow entering through the second front return air inlet enters through the second return air duct In the cooling space.
  • the return air frame includes a first diversion inclined section extending backward and upward from the upper end of the front wall surface of the return air frame, and a second diversion oblique section extending backward and downward from the front wall of the return air frame facing the position near the lower end. Diversion inclined section;
  • the return air rear cover includes a third oblique section extending forward and downward from back to front, a fourth oblique section extending forward and downward from the lower end of the third oblique section, and a fourth oblique section extending from the fourth oblique section.
  • the fifth diversion oblique section extending backward and downward from the front end and the sixth diversion oblique section extending backward and downward from the lower end of the fifth diversion oblique section; and the first diversion oblique section and the third diversion oblique section and
  • the fourth inclined diversion section defines the first return air duct, and the third inclined section is formed with a second opening;
  • the second diversion inclined section and the sixth diversion inclined section define a second return air duct.
  • the junction of the fourth inclined section and the fifth inclined section is located directly below the first inclined section, so that the condensed water condensed on the return air frame drips along the first inclined section It falls to the junction of the fourth inclined section and the fifth inclined section, and drops along the fifth inclined section to the second inclined section, and then flows to the bottom of the evaporator.
  • the sixth diversion inclined section is formed with a plurality of third openings sequentially distributed in the lateral direction, so that the return air flow passing through the second return air duct enters the cooling space through the plurality of third openings.
  • the lower surface of the top cover is spaced apart from the upper surface of the evaporator, and the front end of the top cover is located behind and above the front end of the evaporator, so that the top cover does not completely cover the upper surface of the evaporator;
  • the return air rear cover also includes a shielding portion extending backward and upward from the third diversion oblique section to the front end of the top cover to shield the section of the upper surface of the evaporator that is not covered by the top cover;
  • the shielding portion and the upper surface of the evaporator are spaced apart to form an airflow bypass channel that communicates with the second opening, so that at least part of the return airflow entering through the second opening enters the evaporator through the airflow bypass channel. Cool down.
  • the bottom wall of the storage liner includes a water receiving section formed below the evaporator;
  • the projection of the water receiving section on a vertical plane parallel to the side wall of the storage liner includes a rearward A front diversion oblique section extending below, a horizontal straight section extending horizontally backward from the front diversion oblique section, and a rear diversion oblique section extending backward and upward from the rear end of the horizontal straight section;
  • the horizontal straight section is formed with a drain to drain the condensed water.
  • the two return air hoods are laterally spaced apart.
  • the refrigerator further includes:
  • the vertical beam is arranged between the two return air hoods and extends vertically upward to the top wall of the storage liner to divide the front side of the storage liner into two horizontally distributed areas.
  • the refrigerator further includes:
  • the air supply duct is arranged on the inner side of the rear wall of the storage liner, communicates with the cooling space, and is configured to deliver at least part of the cooling airflow into the storage space;
  • the blower is located behind the evaporator, and its air outlet end is connected to the air inlet end of the air supply duct, and is configured to promote the cooling air flow into the air supply duct.
  • the storage liner is a frozen liner, and the storage space is a frozen space;
  • the refrigerator also includes:
  • the temperature-variable liner is located directly above the storage liner, and a temperature-variable space is defined inside;
  • the refrigerating liner is located directly above the temperature-variable liner, and a refrigerating space is defined therein.
  • the lowermost space of the refrigerator is a cooling space, which increases the height of the storage space above the cooling space, reduces the user's bending degree when picking and placing items in the storage space, and improves the user experience
  • the front side of the air return hood forms two return air inlets distributed up and down, which is not only visually beautiful, but also effectively prevents children's fingers or foreign objects from entering the cooling space; and, two return air areas distributed up and down can make the return air After entering the cooling space, it flows more evenly through the evaporator, which can avoid the problem of easy frosting on the front surface of the evaporator to a certain extent, not only can improve the heat exchange efficiency, but also extend the defrosting cycle, and save energy and efficiency.
  • the design structure of each inclined section of the return air frame and the design structure of each inclined section of the return air rear cover can divert the condensed water formed on the return air hood, which is convenient Drain water and avoid the sound of water droplets perceivable by human ears, which improves the user experience.
  • an airflow bypass channel is defined between the shielding portion of the return air rear cover, the top cover and the upper surface of the evaporator, which ensures that even when the front face of the evaporator is frosted, there is still return air entering
  • the evaporator exchanges heat with the evaporator, thereby ensuring the cooling effect of the evaporator, solving the problem that the cooling effect of the existing refrigerator is reduced due to frost on the front surface of the evaporator, and improving the cooling performance of the refrigerator.
  • Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention
  • Figure 2 is a front view of a refrigerator according to an embodiment of the present invention, after the storage liner, air supply duct, air return hood, top cover and other components are combined;
  • Figure 3 is an enlarged view of area A in Figure 2;
  • Fig. 4 is a partial exploded schematic diagram of a refrigerator according to an embodiment of the present invention.
  • Figure 5 is an exploded schematic view of a return air frame and a return air rear cover of a refrigerator according to an embodiment of the present invention
  • Fig. 6 is a partial cross-sectional view of a refrigerator according to an embodiment of the present invention.
  • Fig. 7 is an enlarged view of area B in Fig. 6;
  • Fig. 8 is a schematic structural diagram of a return air rear cover of a refrigerator according to an embodiment of the present invention
  • Fig. 9 is an air supply duct, return air hood, top cover, evaporator and blower of a refrigerator according to an embodiment of the present invention Side view after assembly;
  • Fig. 10 is a three-dimensional schematic diagram of the storage liner, air supply duct, air return hood, top cover and other components of the refrigerator according to an embodiment of the present invention. detailed description
  • This embodiment provides a refrigerator 100.
  • the refrigerator 100 according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 10.
  • the directions or positional relationships indicated by “front”, “rear”, “upper”, “lower”, “horizontal”, etc. are those based on the refrigerator 100 itself, and "front” and “rear” are as The direction indicated in FIG. 1, as shown in FIG. 2, “lateral” refers to a direction parallel to the width direction of the refrigerator 100.
  • the refrigerator 100 may generally include a box body including an outer shell and at least one storage liner arranged inside the shell, and a space between the outer shell and the storage liner is filled with a heat preservation material ( A foaming layer is formed), a storage space is defined in the storage liner, and a corresponding door is also provided on the front side of each storage liner to open and close the corresponding storage space.
  • a box body including an outer shell and at least one storage liner arranged inside the shell, and a space between the outer shell and the storage liner is filled with a heat preservation material ( A foaming layer is formed), a storage space is defined in the storage liner, and a corresponding door is also provided on the front side of each storage liner to open and close the corresponding storage space.
  • the storage liner 130 located at the bottom may be a freezing liner, and correspondingly, the storage space 132 is a freezing space.
  • Each temperature-variable liner 131 defines a temperature-variable space
  • the refrigerating liner 120 defines a refrigerating space 121.
  • the temperature in the refrigerating space 121 is generally between 2 ° C and 10 ° C, preferably between 4 ° C and 7 ° C.
  • the temperature range in the refrigerated space is generally -22 ° C to -14 ° C.
  • Space can be freely adjusted variable temperature -18 ° C to 8 ° C o different types of optimal storage temperature of the article is not the same, a suitable storage location is not the same as, for example, fruit and vegetable foods suitable for storage in the refrigerated space 121, and the meat Such foods are suitable for storage in the freezer space.
  • the refrigerator 100 of this embodiment may further include an evaporator 101, a blower 104, a compressor (not shown), a condenser (not shown), and a throttling element (not shown) Wait.
  • the evaporator 101 is connected to a compressor, a condenser, and a throttling element via a refrigerant pipeline to form a refrigeration cycle, and the temperature of the compressor is lowered when the compressor is started to cool the air flowing through it.
  • the refrigerator 100 further includes a top cover 103, which is configured to divide the storage liner 130 at the bottom into a storage space 132 located above and a cooling space located below, and the evaporator 101 is arranged in In the cooling space.
  • the lowermost space of the refrigerator 100 is generally a storage space, and the storage space is located at a low position.
  • the user needs to bend over or squat down to pick and place items in the lowermost storage space.
  • the compressor cabin is generally located at the lowest At the rear of the lower storage space, the lowermost storage space inevitably makes way for the compressor cabin, resulting in an abnormal shape of the lowermost storage space, which is inconvenient for the storage of large and difficult to divide items.
  • the space at the bottom of the refrigerator 100 is a cooling space, which raises the height of the storage space 132 above the cooling space, and reduces the user's bending when picking and placing items in the storage space 132 To improve the user experience.
  • the depth dimension of the storage space 132 is ensured, and the compressor cabin can be located below and behind the storage space 132.
  • the storage space 132 does not need to make room for the compressor cabin, and presents a large, well-shaped rectangular space, which is convenient Placing large objects that are not easily divided can solve the pain point of not being able to place large objects in the storage space 132.
  • the evaporator 101 cools the airflow entering the cooling space to form a cooling airflow. At least part of the cooling airflow is delivered to the storage space 132 through the air supply duct 141.
  • the air supply duct 141 may be arranged on the rear wall of the storage liner 130 The inside is connected to the cooling space. As shown in Figure 1, the air supply duct 141 is formed with A plurality of air outlets 141a communicated with the storage space 132.
  • the refrigerator 100 further includes a temperature-variable air duct (not shown) that delivers cooling airflow to the temperature-variable space, and the temperature-variable air duct and the air supply duct 141 can be controllably conducted through the temperature-variable damper (not shown) to displace the air Part of the cooling airflow in the duct 141 is introduced into the variable temperature air duct.
  • a temperature-variable air duct (not shown) that delivers cooling airflow to the temperature-variable space
  • the temperature-variable air duct and the air supply duct 141 can be controllably conducted through the temperature-variable damper (not shown) to displace the air Part of the cooling airflow in the duct 141 is introduced into the variable temperature air duct.
  • the refrigerator 100 may further include a refrigerating air duct (not shown) that conveys cooling airflow to the refrigerating space, and the refrigerating air duct can be controllably communicated with the air duct 141 through the refrigerating damper to connect a part of the air duct 141 The cooling airflow is introduced into the refrigerating air duct.
  • another evaporator may be arranged in the refrigerating liner 120 to cool the refrigerating space 121 through air cooling or direct cooling, so as to form a refrigerator 100 with a dual refrigeration system to prevent the storage space 132 from interacting with refrigeration There is a scent between the spaces 121.
  • the blower 104 is located behind the evaporator 101, and its air outlet end is connected to the air inlet end of the air supply duct 141, and is configured to promote the cooling airflow into the air supply duct 141, To accelerate the air circulation and increase the cooling speed.
  • the blower 104 may be a centrifugal fan, an axial flow fan or a cross flow fan. As shown in FIG. 9, in this embodiment, the blower 104 is a centrifugal fan.
  • the blower 104 is arranged inclined upward from front to back. The blower 104 and the air supply duct 141 detachable connection.
  • the refrigerator 100 further includes at least one return air hood 102, which is arranged at the front end of the top cover 103, and the top cover
  • the bottom wall of the storage liner 130 jointly defines the aforementioned cooling space.
  • Each return air hood 102 includes a return air frame 1021 and a return air rear cover 1022 located on the front side.
  • a first opening 102c is formed on the front wall of the return air frame 1021, and the rear end is open.
  • the opening at the rear end of the air frame 1021 is inserted into the return air frame 1021, and is configured to divide the first opening 102c into a first front return air inlet 102b located above and a second front return air inlet 102a located below to facilitate storage
  • the return air of the material space 132 flows back into the cooling space through the first front return air inlet 102b and the second front return air inlet 102a, and is cooled by the evaporator 101, thereby forming air circulation between the storage space 132 and the cooling space.
  • the front side of the air return hood 102 forms two return air inlets (the first front return air inlet 102b and the second front return air inlet 102a) distributed up and down, which are not only visually beautiful, but also effectively prevent children's fingers or foreign objects from entering In the cooling space; and, the two return air areas distributed up and down can make the return air flow through the evaporator 101 more evenly after entering the cooling space, which can avoid the problem of easy frost formation on the front face of the evaporator 101 to a certain extent, which can not only improve
  • the heat exchange efficiency can also extend the defrosting cycle and save energy and high efficiency.
  • FIG. 2 and 4 there are two return air hoods 102, and the two return air hoods 102 are distributed along the lateral interval.
  • a vertical beam 150 is arranged between the two return air hoods 102, and the vertical beam 150 extends vertically upward to
  • the top wall of the storage liner 130 separates the front side of the storage liner 130 into two horizontally distributed areas.
  • the front side of the storage liner 130 may be provided with two side-opening door bodies (not shown), and the two door bodies are respectively used for opening and closing two areas separated by the vertical beam 150.
  • a first return air duct located behind the first front return air inlet 102b is defined between the return air frame 1021 and the return air rear cover 1022.
  • the return air rear cover 1022 is formed with a first return air duct located behind the first front return air inlet 102b and the first return air inlet 102b.
  • the second opening 102d connected with the air duct is convenient for the return air entering through the first front return air inlet 102b to enter the cooling space through the second opening 102d.
  • a second return air duct located behind the second front return air inlet 102a is also defined between the return air frame 1021 and the return air rear cover 1022, so that the return air flow entering through the second front return air inlet 102a can pass through the second return air duct.
  • the air duct enters the cooling space.
  • the return air frame 1021 includes a first diversion oblique section 1021a extending backward and upward from the upper end of the front wall surface of the return air frame 1021, and the front of the return air frame 1021 The wall faces the second diversion oblique section 1021c extending backward and downward at the position near the lower end;
  • the return air rear cover 1022 includes a third diversion oblique section 1022a extending from back to front and forward and downward, and the third diversion oblique section 1022a
  • the fourth oblique section 1022b extending from the lower end forward and downward, the fifth oblique section 1022c extending backward and downward from the front end of the fourth oblique section 1022b, and the lower end of the fifth oblique section 1022c backward and downward
  • the extended sixth diversion oblique section 1022d o
  • the first inclined section 1021a, the third inclined section 1022a and the fourth inclined section 1022b define the aforementioned first return air duct
  • the third inclined section 1022a is formed with a second opening 102d
  • the third guide inclined section is formed with a plurality of second openings 1022a O 102d sequentially distributed in the transverse direction into the return air by the first front return air inlet 102b through the first return air damper passage, a second opening 102d It enters the cooling space and enters the evaporator 101 from the upper section of the evaporator 101 to exchange heat with the evaporator 101.
  • the second inclined diversion section 1021c and the sixth inclined section 1022d define the aforementioned second return air duct.
  • the return air entering from the second front return air inlet 102a enters the cooling space through the second return air duct, and enters the evaporator 101 from the lower section of the evaporator 101 to exchange heat with the evaporator 101.
  • the dotted arrow in Fig. 7 schematically represents the return air flow path.
  • the return air enters the cooling space through the upper and lower return air ducts, so that the return air passes through the evaporator 101 more evenly, and the heat exchange efficiency is improved.
  • the design of each inclined section of the return air frame body 1021 and the design of each inclined section of the return air rear cover 1022 divert the condensed water condensed on the return air hood 102 to facilitate drainage.
  • the second opening 102d is in the shape of a vertical strip, and a plurality of second openings 102d are sequentially distributed in the lateral direction to disperse the return air, so that the return air enters the upper section of the evaporator 101 more evenly In.
  • the sixth diversion inclined section 1022d may be formed with a plurality of third openings 102e distributed sequentially in the lateral direction, and the return air passing through the second return air duct is divided by each third opening 102e and then enters. In the space obtained, the return air enters the lower section of the evaporator 101 more evenly.
  • the sixth inclined diversion section 1022d may form a mounting portion 1022f, as shown in FIG. 8, the sixth inclined diversion section
  • the second diversion oblique section 1021c of the return air frame 1021 is formed with a matching portion that cooperates with the corresponding mounting portion 1022f to connect the return air frame 1021 with The return air rear cover 1022 is assembled.
  • the lower surface of the top cover 103 is spaced apart from the upper surface of the evaporator 101, and the front end of the top cover 103 is located behind and above the front end of the evaporator 101, that is to say The top cover 103 does not completely cover the upper surface of the evaporator 101, and the front section of the upper surface of the evaporator 101 is not blocked by the top cover 103.
  • the return air rear cover 1022 also includes a shielding portion (denoted as the first shielding portion 1022e) extending backward and upward from the third diversion inclined section 1022a to the front end of the top cover 103.
  • the first shielding portion 1022e is configured to shield the upper surface of the evaporator 101
  • the section not shielded by the top cover 103, and the first shielding portion 1022e is spaced from the upper surface of the evaporator 101 to form an airflow bypass channel that communicates with the second opening 102d, and at least a part of it enters through the second opening 102d
  • the return air can enter the evaporator 101 from above the evaporator 101 via the airflow bypass.
  • the space directly opposite the top cover 103 and the upper surface of the evaporator 101 is filled with windshield bubbles, that is, the rear of the airflow bypass channel is filled with windshield bubbles, so that the return air passing through the airflow bypass channel flows into the evaporation ⁇ 101 ⁇ 101.
  • the return air frame 1021 also includes a second shielding portion 1021b bent backward and upward from the first diversion oblique section 1021a to extend to the top cover 103, and the second shielding portion 1021b completely covers the first The shielding portion 1022e shields and keeps the appearance of the return air cover 102 beautiful.
  • the junction C of the fourth diagonal section 1022b and the fifth diagonal section 1022c is located directly below the first diagonal section 1021a, and is formed on the condensate edge of the return air frame 1021
  • the inclined surface of the first inclined diversion section 1021a drips down to the junction C between the fourth inclined section 1022b and the fifth inclined section 1022c directly below (that is, the fourth inclined section 1022b and The corner between the fifth inclined diversion section 1022c), and then drip along the inclined surface of the fifth inclined diversion section 1022c onto the second inclined diversion section 1021c, and then flow to the bottom of the evaporator 101.
  • the bottom of the evaporator 101 generally has a water receiving area, and the water receiving area is formed with a drain to drain the condensed water. In this way, the condensed water formed on the return air hood 102 is diverted and discharged, so that the sound of water droplets perceivable by human ears is avoided, and the user experience is improved.
  • the bottom wall of the storage liner 130 may be formed with a water receiving section below the evaporator 101.
  • the projection of the water receiving section on the vertical plane parallel to the side wall of the storage liner 130 includes a rearward and lower front side An extended front diversion oblique section 133, a horizontal straight section 134 extending horizontally backward from the front diversion oblique section 133, and a rear diversion oblique section 135 extending backward and upward from the rear end of the horizontal straight section 134, and a horizontal straight section 134
  • a drainage port (not shown) is formed.
  • the condensed water formed on the return air hood 102 is guided by the respective inclined sections of the return air frame 1021 and the return air rear cover 1022, flows along the front diversion inclined section 133 to the horizontal straight section 134, and is finally discharged by the drain ⁇ Mouth discharge.
  • the condensed water on the evaporator 101 flows along the front diversion inclined section 133 and the rear diversion inclined section 135 to the horizontal straight section 134, and is discharged from the drain.
  • the drain port is connected with a drain pipe (not shown), and the condensed water is guided to the evaporating dish of the refrigerator 100 through the drain pipe.
  • the evaporating dish can generally be located in the compressor cabin to utilize the condenser and/or compressor arranged in the compressor cabin. The heat evaporates the water in the evaporating dish.
  • the top cover 103 includes a top cover body 103a and a supporting portion 103b protruding upward from the rear end of the top cover body 103a, and the front wall surface of the air blowing duct 141 is formed There is a supporting portion 141b protruding forward.
  • the supporting portion 103b supports the supporting portion 141b to prevent the refrigerator 100 from being impacted during transportation.
  • the wind tunnel 141 fell.
  • the top end of the air supply duct 141 usually passes through the top wall of the storage liner 130 to communicate with the air ducts that supply air to other storage spaces (for example, the temperature change of the air supply to the temperature change space above the bottom storage liner 130).
  • Air duct (not shown)).
  • a first top opening (not shown) is formed at the top of the air supply duct 141.
  • the top wall of the storage liner 130 is formed with a second top opening corresponding to the first top opening. 130d, to connect the first top opening with the air inlet of the temperature-changing greenhouse air duct through the second top opening 130d.
  • a damper may be provided at the first top opening of the air supply duct 141 to control the opening and closing of the first top opening.
  • the refrigerator 100 will inevitably be bumped during the transportation process, which will easily lead to the air supply duct 141 When the air supply duct 141 drops, there will be a gap between the first top opening at the top of the air supply duct 141 and the second top opening corresponding to the top wall of the storage liner 130.
  • the air supply duct 141 can be prevented from falling when subjected to an external force, so that the installation of the air supply duct 141 is more stable. Ensure the cooling effect of the refrigerator 100 during operation.
  • the air supply air duct 141 includes a front air duct cover 1411 and a rear air duct cover 1412 located behind the front air duct cover 1411. Accordingly, the air duct front cover 1411 constitutes the air supply air duct.
  • the front wall surface of 141 that is, the air duct front cover 1411 is formed with the aforementioned supporting portion 141b; the air duct front cover 1411 and the air duct rear cover 1412 define a passage communicating with the cooling space.
  • the air duct front cover 1411 and the air duct rear cover 1412 are fixed by screws (not shown) passing through the center of the air duct 141.
  • a screw passage is formed at the approximate center of the air duct front cover 1411.
  • a screw post (not shown) is formed at the approximate center of the air duct rear cover plate 1412, and the air duct front cover plate 1411 and the air duct rear cover plate 1412 are matched and locked with the screw posts by screws passing through the screw through holes 141c, As a result, the air duct front cover 1411 and the air duct rear cover 1412 are assembled together.
  • the aforementioned special design structure to prevent the air supply duct 141 from falling down at the same time avoids the problem that the front cover 1411 of the air duct will move downward when the screws are loose.
  • the supporting portion 141b extends obliquely downward from back to front, and the upper end surface of the supporting portion 103b includes a first inclined section 103b 1 extending obliquely downward from back to front, and the condensed water can extend along the supporting The inclined surface of the portion 141b and the inclined surface of the first inclined section 103bl flow forward and downward to the top cover body 103a.
  • the front end surface of the support portion 103b may include a vertically extending vertical section 103b2, the vertical section 103b2 is connected to the first inclined section 103b1 through a first transition section, and the vertical section 103b2 will be along the first inclined section.
  • the condensed water that slides off the section 103bl is guided to the top cover body 103a.
  • the upper surface of the top cover body 103a may include a second inclined section 103a1 extending obliquely downward from back to front, and the second inclined section 103a1 is connected to the vertical section 103b2 through a second transition section to further prevent condensation. The water is diverted.
  • the upper surface of the top cover body 103a may further include a horizontal section 103a2 extending forward from the front end of the second inclined section 103a1, and the horizontal section 103a2 is formed with at least one water collecting groove 103a3 for receiving The condensed water flowing down from the second inclined section 103al is collected to facilitate the user to centrally clean the condensed water.
  • the special structure of the top cover 103 is used to realize the function of diversion and drainage.
  • the horizontal section 103a2 is formed with two water collection tanks 103a3 spaced apart laterally.
  • the air duct rear cover 1412 When the refrigerator 100 is assembled, the air duct rear cover 1412 is first assembled with the blower 104, the air duct front cover 1411 is then assembled with the blower 104, and then the top cover 103 is installed on the storage liner 130, and the air duct rear cover 1412.
  • the positions of the air duct front cover 1411 and the top cover 103 are such that the supporting portion 103b of the top cover 103 supports the supporting portion of the air duct front cover 1411.
  • the rear end of the top cover 103 is formed with positioning protrusions 103c protruding backward, and the rear wall of the storage liner 130 is formed with positioning grooves ( (Not shown), there may be two positioning protrusions 103c, and the two positioning protrusions 103c are respectively adjacent to the lateral sides of the rear end of the top cover 103, and are both located below the supporting portion 103b.
  • the top cover 103 is assembled on the storage liner 130.

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Abstract

一种冰箱，其包括将最下方储物内胆分隔为位于上方的储物空间和位于下方的冷却空间的顶盖，至少一个回风罩设置于顶盖的前端，与顶盖、储物内胆的底壁共同限定出冷却空间，蒸发器设置于冷却空间中；回风罩包括位于前侧的回风框体和从回风框体的后端敞开处插入回风框体中的回风后盖，回风后盖设置为将形成于回风框体前壁面的第一开口分隔为位于上方的第一前回风入口和位于下方的第二前回风入口，不但视觉美观，还可有效防止儿童手指或异物进入冷却空间中；并且，上下分布的两个回风区域可使回风进入冷却空间后更均匀流过蒸发器，可在一定程度上避免蒸发器前端面易结霜的问题，不但可提高换热效率，还可延长化霜周期，节能高效。

Description

冰箱
技术领域
本发明涉及家电技术领域， 特别是涉及一种冰箱。 背景技术
现有冰箱中， 蒸发器一般位于最下方的储物空间的后部， 减小了该储物 空间的前后容积， 限制了储物空间的进深， 不方便放置体积较大不易分隔的 物品。 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升回风与蒸发器的换热效率和方便冷凝 水的排出。
本发明提供了一种冰箱， 包括：
箱体， 包括位于最下方的储物内胆；
顶盖，在储物内胆内将储物内胆分隔为位于上方的储物空间和位于下方 的冷却空间；
至少一个回风罩， 设置于顶盖的前端， 与顶盖、 储物内胆的底壁共同限 定出冷却空间；
蒸发器， 设置于冷却空间中， 配置为冷却进入冷却空间中的气流， 以形 成冷却气流；
回风罩包括：
位于前侧的回风框体， 前壁面形成有第一开口， 后端敞开；
回风后盖， 由回风框体的后端敞开处插入回风框体中， 并设置为将第一 开口分隔为位于上方的第一前回风入口和位于下方的第二前回风入口， 以方 便储物空间的回风通过第一前回风入口和第二前回风入口回流至冷却空间 中。
可选地， 回风框体与回风后盖之间限定有位于第一前回风入口后方的第 一回风风道， 回风后盖形成有位于第一前回风入口后方与第一回风风道连通 的第二开口， 以便于通过第一前回风入口进入的回风气流通过第二开口进入 冷却空间中；
回风框体与回风后盖之间还限定有位于第二前回风入口后方的第二回 风风道， 以便于通过第二前回风入口进入的回风气流通过第二回风风道进入 冷却空间中。
可选地， 回风框体包括由回风框体的前壁面的上端向后上方延伸的第一 导流斜段以及由回风框体的前壁面临近下端的位置向后下方延伸的第二导 流斜段；
回风后盖包括由后至前向前下方延伸的第三导流斜段、 由第三导流斜段 的下端向前下方延伸的第四导流斜段、 由第四导流斜段的前端向后下方延伸 的第五导流斜段以及由第五导流斜段的下端向后下方延伸的第六导流斜段； 并且， 第一导流斜段、 第三导流斜段与第四导流斜段限定出位于第一回 风风道， 且第三导流斜段形成有第二开口；
第二导流斜段与第六导流斜段限定出第二回风风道。
可选地，第四导流斜段与第五导流斜段的连接处位于第一导流斜段的正 下方， 以便于凝结在回风框体的冷凝水沿第一导流斜段滴落至第四导流斜段 与第五导流斜段的连接处， 并沿第五导流斜段滴落到第二导流斜段， 进而流 动至蒸发器的下方。
可选地， 第六导流斜段形成有在横向上依次分布的多个第三开口， 以便 于通过第二回风风道的回风气流通过多个第三开口进入冷却空间中。
可选地， 顶盖的下表面与蒸发器的上表面间隔分布， 且顶盖的前端位于 蒸发器的前端的后上方， 以使得顶盖未完全遮挡蒸发器的上表面；
回风后盖还包括由第三导流斜段向后上方延伸至顶盖前端的遮蔽部， 以 遮蔽蒸发器上表面未被顶盖遮蔽的区段；
并且， 遮蔽部与蒸发器的上表面之间间隔， 以形成与第二开口连通的气 流旁道，从而使得经第二开口进入的至少部分回风气流经由气流旁道进入蒸 发器中由蒸发器进行冷却。
可选地， 储物内胆的底壁包括位于蒸发器的下方形成有接水区段； 接水区段在平行于储物内胆侧壁的竖直面的投影包括位于前侧的向后 下方延伸的前导流斜段、 由前导流斜段水平向后延伸的水平直段以及由水平 直段的后端向后上方延伸的后导流斜段； 水平直段形成有排水口， 以排出冷凝水。
可选地， 回风罩为两个， 两个回风罩横向间隔分布。
可选地， 冰箱还包括：
竖梁， 设置于两个回风罩之间， 并竖直向上延伸至储物内胆的顶壁， 以 将储物内胆的前侧分隔为横向分布的两个区域。
可选地， 冰箱还包括：
送风风道， 设置于储物内胆的后壁内侧， 与冷却空间连通， 配置为将至 少部分冷却气流输送至储物空间内；
送风机， 位于蒸发器的后方， 其出风端与送风风道的进风端连接， 配置 为促使冷却气流进入送风风道内。
可选地， 储物内胆为冷冻内胆， 储物空间为冷冻空间；
冰箱还包括：
变温内胆， 位于储物内胆的正上方， 其内限定有变温空间；
冷藏内胆， 位于变温内胆的正上方， 其内限定有冷藏空间。
本发明的冰箱， 冰箱最下方的空间为冷却空间， 抬高了位于冷却空间上 方的储物空间的高度， 降低用户对储物空间进行取放物品操作时的弯腰程 度， 提升用户的使用体验； 另外， 回风罩的前侧形成上下分布的两个回风入 口， 不但视觉美观， 还可有效防止儿童手指或异物进入冷却空间中； 并且， 上下分布的两个回风区域可使回风进入冷却空间后更均匀流过蒸发器， 可在 一定程度上避免蒸发器前端面易结霜的问题， 不但可提高换热效率， 还可延 长化霜周期， 节能高效。
进一步地， 本发明的冰箱中， 回风框体的各个倾斜区段的设计结构以及 回风后盖的各个倾斜区段的设计结构可对形成在回风罩上的冷凝水进行导 流， 便于排水， 并可避免产生人耳可感知的水滴声， 提升用户使用体验。
更进一步地， 本发明的冰箱中， 回风后盖的遮蔽部、 顶盖与蒸发器上表 面之间限定有气流旁道， 保证了即使在蒸发器前端面结霜时， 仍有回风进入 蒸发器与其换热， 从而保证蒸发器的制冷效果， 解决了现有冰箱因蒸发器前 端面结霜而导致制冷效果降低的问题， 提升了冰箱的制冷性能。
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储物内胆、 送风风道、 回风罩、 顶盖等部件组合后的前视图；
图 3是图 2中区域 A的放大图；
图 4是根据本发明一个实施例的冰箱的局部分解示意图；
图 5是根据本发明一个实施例的冰箱的回风框体和回风后盖的分解示意 图；
图 6是根据本发明一个实施例的冰箱的局部剖面图；
图 7是图 6中区域 B的放大图；
图 8是根据本发明一个实施例的冰箱的回风后盖的示意性结构图； 图 9是根据本发明一个实施例的冰箱的送风风道、 回风罩、 顶盖、 蒸发 器和送风机组合后的侧视图； 以及
图 10是根据本发明一个实施例的冰箱的储物内胆、 送风风道、 回风罩、 顶盖等部件组合后的立体示意图。 具体实施方式
本实施例提供了一种冰箱 100,下面参照图 1至图 10来描述本发明实施 例的冰箱 100。 在下文描述中， “前”、 “后”、 “上”、 “下”、 “横向” 等指示的方位或位置关系为基于冰箱 100本身为参考的方位， “前”、 “后” 为如图 1所指示的方向， 如图 2所示， “横向”是指与冰箱 100宽度方向平 行的方向。
如图 1所示， 冰箱 100—般性地可包括箱体， 箱体包括外壳和设置在外 壳内侧的至少一个储物内胆， 外壳与储物内胆之间的空间中填充有保温材料 （形成发泡层） ， 储物内胆中限定有储物空间， 每个储物内胆的前侧还设置 有对应的门体， 以开闭对应的储物空间。
位于最下方的储物内胆 130可为冷冻内胆， 相应地， 储物空间 132为冷 冻空间。如图 1所示， 储物内胆为多个， 分别为位于最下方的储物内胆 130、 位于储物内胆 130正上方的两个横向分布的变温内胆 131和位于两个变温内 胆 131正上方的冷藏内胆 120。 每个变温内胆 131内限定有变温空间， 冷藏 内胆 120内限定有冷藏空间 121。
如本领域技术人员所熟知的， 冷藏空间 121 内的温度一般处于 2°C至 10°C之间，优先为 4°C至 7°C。冷冻空间内的温度范围一般处于 -22°C至 -14°C。 变温空间可随意调到 -18 °C至 8°Co 不同种类的物品的最佳存储温度并不相 同，适宜存放的位置也并不相同，例如果蔬类食物适宜存放于冷藏空间 121， 而肉类食物适宜存放于冷冻空间。
如本领域技术人员可意识到的， 本实施例的冰箱 100还可包括蒸发器 101、 送风机 104、 压缩机（未示出） 、 冷凝器（未示出） 以及节流元件 （未 示出） 等。 蒸发器 101经由制冷剂管路与压缩机、 冷凝器、 节流元件连接， 构成制冷循环回路， 在压缩机启动时降温， 以对流经其的空气进行冷却。
特别地， 本实施例中， 冰箱 100还包括顶盖 103 , 其设置为将位于最下 方的储物内胆 130分隔为位于上方的储物空间 132和位于下方的冷却空间， 蒸发器 101布置于冷却空间中。
传统冰箱 100中， 冰箱 100的最下方空间一般为储物空间， 该储物空间 所处位置较低，用户需要大幅度弯腰或蹲下才能对最下方的储物空间进行取 放物品的操作， 不便于用户使用， 尤其不方便老人使用； 并且， 由于蒸发器 占用了最下方储物空间的后方区域， 使得最下方储物空间的进深深度减小， 再者， 由于压机舱一般地位于最下方储物空间的后部， 最下方储物空间不可 避免地要为压机舱让位， 导致最下方储物空间异形， 不便于体积较大且不易 分割物品的存放。
而本实施例的冰箱 100中， 冰箱 100最下方的空间为冷却空间， 抬高了 位于冷却空间上方的储物空间 132的高度， 降低用户对储物空间 132进行取 放物品操作时的弯腰程度，提升用户的使用体验。另外，保证了储物空间 132 的进深尺寸， 并且， 压机舱可位于储物空间 132的下后方， 储物空间 132无 需再为压机舱让位， 呈现体积较大、 形状规整的矩形空间， 便于放置体积较 大不易分割的物品， 解决无法在储物空间 132放置较大物品的痛点。
蒸发器 101冷却进入冷却空间中的气流， 以形成冷却气流， 至少部分冷 却气流经送风风道 141输送至储物空间 132内，送风风道 141可设置于储物 内胆 130的后壁内侧， 与冷却空间连通， 如图 1所示， 送风风道 141形成有 多个与储物空间 132连通的送风出口 141a。
冰箱 100还包括向变温空间输送冷却气流的变温风道（未示出） ， 变温 风道与送风风道 141可通过变温风门 （未示出）可受控地导通， 以将送风风 道 141内的部分冷却气流导入变温风道内。
冰箱 100还可包括向冷藏空间输送冷却气流的冷藏风道（未示出） ， 冷 藏风道可通过冷藏风门与送风风道 141可受控地导通， 以将送风风道 141的 部分冷却气流导入到冷藏风道中。 在一些替代性实施例中， 冷藏内胆 120内 可布置有另一蒸发器， 通过风冷或直冷的方式冷却冷藏空间 121， 以构成双 制冷系统的冰箱 100， 防止储物空间 132与冷藏空间 121之间串味。
在一些实施例中， 如图 9所示， 送风机 104位于蒸发器 101的后方， 其 出风端与送风风道 141 的进风端连接， 配置为促使冷却气流进入送风风道 141内， 以加速气流循环， 提升制冷速度。 送风机 104可为离心风机、 轴流 风机或贯流风机， 如图 9所示， 本实施例中， 送风机 104为离心风机， 送风 机 104由前至后呈向上倾斜布置， 送风机 104与送风风道 141可拆卸连接。
冰箱 100还包括至少一个回风罩 102， 设置于顶盖 103的前端， 与顶盖
103、 储物内胆 130的底壁共同限定出前述的冷却空间。
每一回风罩 102均包括位于前侧的回风框体 1021和回风后盖 1022， 回 风框体 1021的前壁面形成有第一开口 102c， 后端敞开， 回风后盖 1022由回 风框体 1021的后端敞开处插入回风框体 1021中，并设置为将第一开口 102c 分隔为位于上方的第一前回风入口 102b 和位于下方的第二前回风入口 102a, 以方便储物空间 132的回风通过第一前回风入口 102b和第二前回风 入口 102a回流至冷却空间中， 由蒸发器 101进行冷却， 由此在储物空间 132 与冷却空间之间形成气流循环。
本实施例中， 回风罩 102的前侧形成上下分布的两个回风入口 （第一前 回风入口 102b和第二前回风入口 102a） ， 不但视觉美观， 还可有效防止儿 童手指或异物进入冷却空间中； 并且， 上下分布的两个回风区域可使回风进 入冷却空间后更均匀流过蒸发器 101， 可在一定程度上避免蒸发器 101前端 面易结霜的问题， 不但可提高换热效率， 还可延长化霜周期， 节能高效。
如图 2、 图 4所示， 回风罩 102为两个， 两个回风罩 102沿横向间隔分 布， 两个回风罩 102之间设置有竖梁 150， 竖梁 150竖直向上延伸至储物内 胆 130的顶壁， 以将储物内胆 130的前侧分隔为横向分布的两个区域。 储物内胆 130的前侧可设置对开式的两个门体（未示出） ， 两个门体分 别用于开闭由竖梁 150分隔的两个区域。
回风框体 1021与回风后盖 1022之间限定有位于第一前回风入口 102b 后方的第一回风风道， 回风后盖 1022形成有位于第一前回风入口 102b后方 与第一回风风道连通的第二开口 102d， 以便于通过第一前回风入口 102b进 入的回风通过第二开口 102d进入冷却空间中。 回风框体 1021 与回风后盖 1022之间还限定有位于第二前回风入口 102a后方的第二回风风道， 以便于 通过第二前回风入口 102a进入的回风气流通过第二回风风道进入冷却空间 中。
具体地， 如图 5至图 7所示， 回风框体 1021包括由回风框体 1021的前 壁面的上端向后上方延伸的第一导流斜段 1021a以及由回风框体 1021的前 壁面临近下端的位置向后下方延伸的第二导流斜段 1021c； 回风后盖 1022 包括由后至前向前下方延伸的第三导流斜段 1022a、 由第三导流斜段 1022a 的下端向前下方延伸的第四导流斜段 1022b、 由第四导流斜段 1022b的前端 向后下方延伸的第五导流斜段 1022c以及由第五导流斜段 1022c的下端向后 下方延伸的第六导流斜段 1022do
参见图 7, 第一导流斜段 1021a、 第三导流斜段 1022a与第四导流斜段 1022b限定出前述的第一回风风道， 且第三导流斜段 1022a形成有第二开口 102d, 例如， 第三导流斜段 1022a形成有在横向上依次分布的多个第二开口 102do 由第一前回风入口 102b进入的回风经第一回风风道、 第二开口 102d 进入冷却空间中， 由蒸发器 101的上部区段进入蒸发器 101中与蒸发器 101 换热。第二导流斜段 1021c与第六导流斜段 1022d限定出前述的第二回风风 道。 由第二前回风入口 102a进入的回风经第二回风风道进入冷却空间中， 由蒸发器 101的下部区段进入蒸发器 101中与蒸发器 101换热。
如图 7所示， 图 7中的虚线箭头示意性地表示了回风流动路径。 回风通 过上下两个回风风道进入冷却空间中，使得回风更加均匀地通过蒸发器 101， 提升换热效率。 并且， 回风框体 1021 的各个倾斜区段的设计以及回风后盖 1022的各个倾斜区段的设计对凝结在回风罩 102上的冷凝水进行导流，便于 排水。
如图 5所示， 第二开口 102d呈竖条状， 多个第二开口 102d在横向上依 次分布， 对回风进行分散， 使得回风更加均匀地进入蒸发器 101的上部区段 中。
如图 8所示， 第六导流斜段 1022d可形成有在横向上依次分布的多个第 三开口 102e， 通过第二回风风道的回风通过由各个第三开口 102e进行分流 再进入所却空间中， 使得回风更加均匀地进入蒸发器 101的下部区段中。
第六导流斜段 1022d可形成安装部 1022f， 如图 8所示， 第六导流斜段
1022d形成有横向间隔分布的两个安装部 1022f， 相应地， 回风框体 1021的 第二导流斜段 1021c形成有与对应的安装部 1022f配合的配合部， 以将回风 框体 1021与回风后盖 1022进行装配。
如图 4所示， 并参照图 6和图 7 , 顶盖 103的下表面与蒸发器 101的上 表面间隔分布， 且顶盖 103的前端位于蒸发器 101的前端的后上方， 也即是 说， 顶盖 103未完全遮挡蒸发器 101的上表面， 蒸发器 101的上表面的前区 段未被顶盖 103遮挡。
回风后盖 1022还包括由第三导流斜段 1022a 向后上方延伸至顶盖 103 前端的遮蔽部 （记为第一遮蔽部 1022e） ， 第一遮蔽部 1022e设置为遮蔽蒸 发器 101上表面未被顶盖 103遮蔽的区段， 并且， 第一遮蔽部 1022e与蒸发 器 101 的上表面之间间隔， 以形成与第二开口 102d连通的气流旁道， 经第 二开口 102d进入的至少部分回风可经由气流旁道由蒸发器 101 的上方进入 蒸发器 101中。
顶盖 103与蒸发器 101上表面之间的正对空间填充有挡风泡沬， 也即是 说， 气流旁道的后方填充有挡风泡沬， 使得经过气流旁道的回风均流入蒸发 器 101 中。 由此保证了即使在蒸发器 101前端面结霜时， 仍有回风进入蒸发 器 101与其换热， 从而保证蒸发器 101的制冷效果， 解决了现有冰箱 100因 蒸发器 101前端面结霜而导致制冷效果降低的问题， 提升了冰箱 100的制冷 性能。
如图 5和图 7所示， 回风框体 1021还包括由第一导流斜段 1021a向后 上方弯折延伸至顶盖 103的第二遮蔽部 1021b， 第二遮蔽部 1021b完全将第 一遮蔽部 1022e遮蔽， 保持回风罩 102外形的美观。
进一步特别地， 参见图 7 , 第四导流斜段 1022b与第五导流斜段 1022c 的连接处 C位于第一导流斜段 1021a的正下方， 形成于回风框体 1021 的冷 凝水沿第一导流斜段 1021a 的斜面向下恰好滴落到正下方的第四导流斜段 1022b与第五导流斜段 1022c的连接处 C上 （也即是第四导流斜段 1022b与 第五导流斜段 1022c之间的拐角处） ， 再沿第五导流斜段 1022c的斜面滴落 到第二导流斜段 1021c上， 进而流动至蒸发器 101的下方。 蒸发器 101的下 方一般具有接水区， 接水区形成有排水口， 从而将冷凝水排出。 由此对形成 在回风罩 102上的冷凝水进行导流并排出， 避免产生人耳可感知的水滴声， 提升用户使用体验。
储物内胆 130的底壁可形成有位于蒸发器 101下方的接水区段，接水区 段在平行于储物内胆 130侧壁的竖直面的投影包括位于前侧的向后下方延伸 的前导流斜段 133、 由前导流斜段 133水平向后延伸的水平直段 134以及由 水平直段 134的后端向后上方延伸的后导流斜段 135 , 水平直段 134形成有 排水口 （未示出） 。 形成于回风罩 102上的冷凝水经前述回风框体 1021和 回风后盖 1022的各个倾斜区段的导流， 沿前导流斜段 133流动至水平直段 134,并最终由排水口排出。蒸发器 101上的冷凝水分别沿着前导流斜段 133、 后导流斜段 135流动至水平直段 134， 由排水口排出。
排水口连接有排水管（未示出） ， 冷凝水通过排水管引导至冰箱 100的 蒸发皿中， 蒸发皿一般可位于压机舱中， 以利用布置于压机舱内的冷凝器和 /或压缩机的热量将蒸发皿中的水蒸发。
进一步特别地， 如图 3， 并结合图 9所示， 顶盖 103包括顶盖本体 103a 和由顶盖本体 103a的后端向上凸起的支托部 103b， 送风风道 141的前壁面 形成有向前凸出的承托部 141b，顶盖 103和送风风道 141在装配时，使得支 托部 103b顶托着承托部 141b， 以防止冰箱 100在运输过程中受到碰撞而导 致送风风道 141下坠。
送风风道 141的顶端通常穿过储物内胆 130的顶壁， 以连通向其他储物 空间送风的风道（例如， 向最下方储物内胆 130上方的变温空间送风的变温 风道 （未示出） ） 。 具体地， 送风风道 141的顶端形成有第一顶开口 （未示 出） ， 如图 10所示， 储物内胆 130的顶壁形成有与第一顶开口—对应的 第二顶开口 130d， 以通过第二顶开口 130d将第一顶开口与变温室风道的进 风口连通。
送风风道 141的第一顶开口处可设置有风门， 以受控开闭第一顶开口。 如图 1所示， 变温内胆 131为两个， 相应地， 变温室风道为两个， 第一顶开 口、 第二顶开口 130d均为两个。
冰箱 100在搬运过程中， 不可避免地会受到碰撞， 易导致送风风道 141 下坠， 一旦送风风道 141下坠， 送风风道 141的顶端的第一顶开口与储物内 胆 130的顶壁对应的第二顶开口之间即会出现缝隙， 冰箱 100运行过程中， 变温空间与下方的储物空间 132之间会串风，影响储物空间 132和变温空间 的温度，而且易于导致送风风道 141的顶端附近结霜，影响冷却气流的输送， 降低制冷效果。
本实施例中， 通过对顶盖 103和送风风道 141进行如上特别的设计， 可 避免送风风道 141在受到外力作用时下坠， 使得送风风道 141的安装更加稳 固， 由此可保证冰箱 100运行过程中的制冷效果。
如图 9所示，送风风道 141包括风道前盖板 1411和位于风道前盖板 1411 后侧的风道后盖板 1412， 相应地， 风道前盖板 1411构成送风风道 141的前 壁面， 也即是说， 风道前盖板 1411形成有前述的承托部 141b; 风道前盖板 1411与风道后盖板 1412限定有与冷却空间连通的通道。
风道前盖板 1411和风道后盖板 1412通过穿过送风风道 141中心的螺钉 （未示出） 固定， 如图 1所示， 风道前盖板 1411的大致中心位置形成有螺 钉穿过孔 141c。 风道后盖板 1412的大致中心位置形成有螺钉柱（未示出）， 风道前盖板 1411和风道后盖板 1412通过穿过螺钉穿过孔 141c的螺钉与螺 钉柱适配锁紧， 由此将风道前盖板 1411和风道后盖板 1412装配在一起。 前 述的防止送风风道 141下坠的特别设计结构同时避免了在螺钉松动时而导致 风道前盖板 1411下移的问题。
进一步特别地， 承托部 141b由后至前呈向下倾斜延伸， 支托部 103b的 上端面包括由后至前呈向下倾斜延伸的第一倾斜区段 103b 1 , 冷凝水可沿承 托部 141b的斜面、第一倾斜区段 103bl的斜面向前下方流动至顶盖本体 103a 上。
支托部 103b 的前端面可包括竖直延伸的竖直区段 103b2， 竖直区段 103b2通过第一过渡曲段与第一倾斜区段相接 103bl， 竖直区段 103b2将沿 第一倾斜区段 103bl滑落的冷凝水引导至顶盖本体 103a上。
顶盖本体 103a的上表面可包括由后至前向下倾斜延伸的第二倾斜区段 103al， 第二倾斜区段 103al通过第二过渡曲段与竖直区段 103b2相接， 以 进一步对冷凝水进行导流。
顶盖本体 103a的上表面还可包括由第二倾斜区段 103al的前端向前延 伸的水平区段 103a2， 水平区段 103a2形成有至少一个集水槽 103a3 , 以收 集从第二倾斜区段 103al流下的冷凝水， 方便用户将冷凝水集中清理。 由此 利用顶盖 103的特别结构实现导流排水功能。 如图 4所示， 水平区段 103a2 形成有两个横向间隔分布的集水槽 103a3。
冰箱 100在装配时， 风道后盖板 1412先与送风机 104装配， 风道前盖 板 1411再与送风机 104装配， 之后， 顶盖 103再安装在储物内胆 130上， 风道后盖板 1412、 风道前盖板 1411及顶盖 103的位置满足使得的顶盖 103 的支托部 103b顶托着风道前盖板 1411的承托部。
如图 4和图 9所示， 顶盖 103的后端形成有向后凸出的定位凸 103c，储 物内胆 130的后壁形成有与定位凸 103c 一一对应并适配的定位槽（未示出）， 定位凸 103c可为两个，两个定位凸 103c分别临近顶盖 103后端的横向两侧， 并均位于支托部 103b的下方。 由此将顶盖 103装配在储物内胆 130上。
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

权 利 要 求
1. 一种冰箱， 包括：
箱体， 包括位于其最下方的储物内胆；
顶盖，在所述储物内胆内将所述储物内胆分隔为位于上方的储物空间和 位于下方的冷却空间；
至少一个回风罩， 设置于所述顶盖的前端， 与所述顶盖、 所述储物内胆 的底壁共同限定出所述冷却空间；
蒸发器， 设置于所述冷却空间中， 配置为冷却进入所述冷却空间中的气 流， 以形成冷却气流；
所述回风罩包括：
位于前侧的回风框体， 前壁面形成有第一开口， 后端敞开；
回风后盖， 由所述回风框体的后端敞开处插入所述回风框体中， 并设置 为将所述第一开口分隔为位于上方的第一前回风入口和位于下方的第二前 回风入口， 以便所述储物空间的回风通过所述第一前回风入口和所述第二前 回风入口回流至所述冷却空间中。
2. 根据权利要求 1所述的冰箱， 其中
所述回风框体与所述回风后盖之间限定有位于所述第一前回风入口后 方的第一回风风道， 所述回风后盖形成有位于所述第一前回风入口后方与所 述第一回风风道连通的第二开口， 以便于通过所述第一前回风入口进入的回 风气流通过所述第二开口进入所述冷却空间中；
所述回风框体与所述回风后盖之间还限定有位于所述第二前回风入口 后方的第二回风风道， 以便于通过所述第二前回风入口进入的回风气流通过 所述第二回风风道进入所述冷却空间中。
3. 根据权利要求 2所述的冰箱， 其中
所述回风框体包括由所述回风框体的前壁面的上端向后上方延伸的第 一导流斜段以及由所述回风框体的前壁面临近下端的位置向后下方延伸的 第二导流斜段；
所述回风后盖包括由后至前向前下方延伸的第三导流斜段、 由所述第三 导流斜段的下端向前下方延伸的第四导流斜段、 由所述第四导流斜段的前端 向后下方延伸的第五导流斜段以及由所述第五导流斜段的下端向后下方延 伸的第六导流斜段；
并且， 所述第一导流斜段、 所述第三导流斜段与所述第四导流斜段限定 出位于所述第一回风风道， 且所述第三导流斜段形成有所述第二开口； 所述第二导流斜段与所述第六导流斜段限定出所述第二回风风道。
4. 根据权利要求 3所述的冰箱， 其中
所述第四导流斜段与所述第五导流斜段的连接处位于所述第一导流斜 段的正下方， 以便于凝结在所述回风框体的冷凝水沿所述第一导流斜段滴落 至所述第四导流斜段与第五导流斜段的连接处， 并沿所述第五导流斜段滴落 到所述第二导流斜段， 进而流动至所述蒸发器的下方。
5. 根据权利要求 3所述的冰箱， 其中
所述第六导流斜段形成有在横向上依次分布的多个第三开口， 以便于通 过所述第二回风风道的回风气流通过所述多个第三开口进入所述冷却空间 中。
6. 根据权利要求 3所述的冰箱， 其中
所述顶盖的下表面与所述蒸发器的上表面间隔分布， 且所述顶盖的前端 位于所述蒸发器的前端的后上方， 以使得所述顶盖未完全遮挡所述蒸发器的 上表面；
所述回风后盖还包括由所述第三导流斜段向后上方延伸至所述顶盖前 端的遮蔽部， 以遮蔽所述蒸发器上表面未被所述顶盖遮蔽的区段；
并且， 所述遮蔽部与所述蒸发器的上表面之间间隔， 以形成与所述第二 开口连通的气流旁道，从而使得经所述第二开口进入的至少部分回风气流经 由所述气流旁道进入所述蒸发器中由所述蒸发器进行冷却。
7. 根据权利要求 1所述的冰箱， 其中
所述储物内胆的底壁包括位于所述蒸发器的下方形成有接水区段； 所述接水区段在平行于所述储物内胆侧壁的竖直面的投影包括位于前 侧的向后下方延伸的前导流斜段、 由所述前导流斜段水平向后延伸的水平直 段以及由所述水平直段的后端向后上方延伸的后导流斜段； 所述水平直段形成有排水口， 以排出冷凝水。
8. 根据权利要求 1所述的冰箱， 其中
所述回风罩为两个， 两个所述回风罩横向间隔分布。
9. 根据权利要求 8所述的冰箱， 还包括：
竖梁， 设置于两个所述回风罩之间， 并竖直向上延伸至所述储物内胆的 顶壁， 以将所述储物内胆的前侧分隔为横向分布的两个区域。
10. 根据权利要求 1所述的冰箱， 还包括：
送风风道， 设置于所述储物内胆的后壁内侧， 与所述冷却空间连通， 配 置为将至少部分所述冷却气流输送至所述储物空间内；
送风机， 位于所述蒸发器的后方， 其出风端与所述送风风道的进风端连 接， 配置为促使所述冷却气流进入所述送风风道内。 l i. 根据权利要求 1所述的冰箱， 其中
所述储物内胆为冷冻内胆， 所述储物空间为冷冻空间；
所述冰箱还包括：
变温内胆， 位于所述储物内胆的正上方， 其内限定有变温空间； 冷藏内胆， 位于所述变温内胆的正上方， 其内限定有冷藏空间。
PCT/CN2020/075887 2019-02-26 2020-02-19 冰箱 WO2020173360A1 (zh)

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