CN110375488B - Refrigerator with improved air duct structure - Google Patents

Refrigerator with improved air duct structure Download PDF

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Publication number
CN110375488B
CN110375488B CN201810333864.3A CN201810333864A CN110375488B CN 110375488 B CN110375488 B CN 110375488B CN 201810333864 A CN201810333864 A CN 201810333864A CN 110375488 B CN110375488 B CN 110375488B
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CN
China
Prior art keywords
cooling chamber
space
refrigerator
air
refrigerating
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CN201810333864.3A
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CN110375488A (en
Inventor
王晶
野田俊典
费斌
陈建全
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Haier Smart Home Co Ltd
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Haier Smart Home Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062Arrangements 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
    • F25D17/065Arrangements 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention provides a refrigerator with an improved air duct structure. Wherein the refrigerator comprises: the box body is internally limited with a cooling chamber and at least one storage space which is arranged above the cooling chamber at intervals; the door body is arranged on the front surface of the box body and is used for operably opening and closing the storage space; the evaporator is horizontally arranged in the cooling chamber in a flat cube shape as a whole and is configured to provide cooling capacity for the storage space; the upper end of the return air duct is provided with a return air inlet communicated with a storage space above the cooling chamber at intervals, the lower end of the return air duct is provided with a return air outlet communicated with the cooling chamber, and the return air outlet is provided with a drainage inclined plane and a heating wire so as to remove ice water existing in the return air duct. According to the refrigerator, the storage space has a certain ground clearance, a user is prevented from bending down or squatting down to take and put articles, and the drainage inclined plane and the heating wire are arranged at the return air outlet where the return air duct is communicated with the cooling chamber, so that the refrigerator can be prevented from being blocked by frost, and the fluency of the whole air path is effectively ensured.

Description

Refrigerator with improved air duct structure
Technical Field
The invention relates to the field of household appliances, in particular to a refrigerator with an improved air duct structure.
Background
Along with the increasing development of society and the continuous improvement of living standard of people, the living rhythm of people is faster and faster, so that people are willing to buy a lot of foods in the refrigerator, and the refrigerator becomes one of the household appliances indispensable in daily life of people.
The existing refrigerator is generally provided with a plurality of storage spaces, and can be configured into a refrigerating space, a freezing space, a temperature changing space or a fresh-keeping space according to different purposes. The user is very inconvenient when using the storing space of refrigerator bottom, often need squat down and operate, influences user's use experience. In addition, when the storage space arranged at the bottom of the refrigerator is set to be drawer-type opening, as the compressor bin is often arranged at the rear side of the bottom of the refrigerator, the compressor bin needs to occupy a part of drawer space, so that the drawer is special-shaped, and the storage space at the bottom of the refrigerator cannot be fully utilized. Moreover, the existing refrigerator bottom drawer is too deep in the longitudinal direction, so that users need to spend too much time to find when taking things, and time and energy of the users are wasted.
Disclosure of Invention
An object of the present invention is to increase the height of a storage space at the bottom of a refrigerator from the ground and to reduce the operation of bending down to take and put articles by a user.
The invention further aims to improve the utilization rate of the storage space of the refrigerator and improve the use experience of a user.
In particular, the present invention provides a refrigerator. The refrigerator includes: the box body is internally limited with a cooling chamber and at least one storage space which is arranged above the cooling chamber at intervals; the door body is arranged on the front surface of the box body and is used for operably opening and closing the storage space; the evaporator is horizontally arranged in the cooling chamber in a flat cube shape as a whole and is configured to provide cooling capacity for the storage space; and the upper end of the air return duct is provided with an air return inlet communicated with the storage space above the cooling chamber at intervals, the lower end of the air return duct is provided with an air return outlet communicated with the cooling chamber so as to realize the air return of the storage space to the cooling chamber, and the air return outlet is provided with a drainage inclined plane and a heating wire so as to remove ice water existing at the air return outlet.
Optionally, the interior of the case defines a plurality of storage spaces including a refrigerated space and at least one refrigerated space, and the case includes: a freezing liner, the interior of which is defined with a cooling chamber and at least one freezing space positioned right above the cooling chamber; and the refrigerating liner is arranged right above the freezing liner, and a refrigerating space is defined in the refrigerating liner.
Optionally, the refrigerator further includes: the evaporator cover plate is covered above the evaporator and serves as a top wall to jointly define a cooling chamber with the freezing liner.
Optionally, a refrigerating air return port communicated with the refrigerating space is arranged at the front end of the evaporator cover plate so as to realize air return of the refrigerating space to the cooling chamber.
Optionally, the refrigerator further includes: the air supply duct is arranged on the inner sides of the rear walls of the refrigeration inner container and the freezing inner container, the bottom end of the air supply duct is provided with an air supply inlet communicated with the cooling chamber, and air supply outlets are respectively arranged corresponding to the refrigeration space and the freezing space so as to transfer the cold energy provided by the evaporator to the storage space; and the return air duct is arranged on any side wall of the refrigeration liner and the freezing liner, the upper end of the return air duct is provided with a return air inlet communicated with the refrigeration space, and the lower end of the return air duct is provided with a return air outlet communicated with the cooling chamber so as to realize return air from the refrigeration space to the cooling chamber.
Optionally, the return air inlet is arranged at the front part of the side wall of the refrigeration liner, and the return air outlet is arranged at the front part of the side wall of the same side of the refrigeration liner.
Optionally, the return air duct is provided with two, and the symmetry sets up in two lateral wall fronts of cold-stored inner bag and freezing inner bag.
Optionally, the case further includes: the shell is arranged outside the freezing inner container and the refrigerating inner container; and the heat preservation layer is arranged between the shell and the refrigerating liner and between the shell and the freezing liner to isolate heat outside the refrigerator.
Optionally, the housing comprises: the first bottom plate sets up in the below of freezing inner bag, includes: a front bottom plate positioned at the front side of the bottom of the refrigerator, an inclined plate extending obliquely upwards and backwards from the rear end of the front bottom plate, and a rear top plate extending backwards from the upper end of the inclined plate, wherein a window is arranged on the inclined plate; the second bottom plate is positioned below the rear top plate, and the front end of the second bottom plate is arranged with the rear end of the front bottom plate at intervals to form a gap; and the air guide cover plate is covered at the window and divides the gap into a heat dissipation air inlet and a heat dissipation air outlet.
Optionally, the housing further comprises: two curb plates and a backplate, be configured to have the compressor storehouse with back roof, second bottom plate jointly, the compressor storehouse is located the rear of cooling chamber, and the refrigerator still includes: the condenser, the heat dissipation fan and the compressor are arranged in the compressor bin in sequence along the transverse direction, wherein the condenser is arranged on one side close to the heat dissipation air inlet, the compressor is arranged on one side close to the heat dissipation air outlet, and the heat dissipation fan is arranged between the condenser and the compressor.
The refrigerator of the present invention includes: the box body is internally limited with a cooling chamber and at least one storage space which is arranged above the cooling chamber at intervals; the door body is arranged on the front surface of the box body and is used for operably opening and closing the storage space; the evaporator is horizontally arranged in the cooling chamber in a flat cube shape as a whole and is configured to provide cooling capacity for the storage space; and the upper end of the air return duct is provided with an air return inlet communicated with the storage space above the cooling chamber at intervals, the lower end of the air return duct is provided with an air return outlet communicated with the cooling chamber so as to realize the air return of the storage space to the cooling chamber, and the air return outlet is provided with a drainage inclined plane and a heating wire so as to remove ice water existing at the air return outlet. The cooling chamber is arranged below the storage space, so that the storage space has a certain ground clearance, the user is prevented from bending down or squatting down to take and put articles, and the use experience of the user is improved. When the high-temperature and high-humidity gas in the refrigerating space approaches the ambient temperature under the circulating action of the air passage, condensation and even frosting may occur. The return air outlet that return air wind channel and cooling chamber intercommunication can be blocked by the frost, sets up drainage inclined plane and heater strip here and can avoid appearing this kind of problem, effectively guarantees the smoothness nature of whole wind path, improves the operational reliability of refrigerator.
Further, the refrigerator of the present invention, the freezing liner, the inside of which is defined with a cooling chamber and at least one freezing space located right above the cooling chamber. The evaporator cover plate is covered above the evaporator and serves as a top wall to jointly define a cooling chamber with the freezing liner. The front end of the evaporator cover plate is provided with a refrigerating air return opening communicated with the refrigerating space so as to realize the return air of the refrigerating space to the cooling chamber. The refrigerating space adjacently arranged above the cooling chamber is directly returned through the refrigerating air return opening at the front end of the evaporator cover plate, so that the space of the refrigerator in the depth direction occupied by the return air channel arranged on the rear wall of the refrigerating space is avoided, and the storage volume is effectively improved. The return air duct can avoid that the cooling chamber can only return air to the refrigerating space when being arranged below the refrigerating space, but can not return air to the refrigerating space above the refrigerating space, thereby effectively ensuring the working reliability of the whole air path circulation of the refrigerator.
Furthermore, the refrigerator, the cooling chamber and the compressor bin are arranged at the bottom of the refrigerator body, and the compressor bin is arranged at the rear part of the cooling chamber, so that the storage space above the compressor bin and the cooling chamber is realized as a plane space, and the utilization rate of the storage space is improved compared with that of a special-shaped space. In addition, the depth of the storage space is effectively reduced, so that the storage of the articles is changed from stacked storage to unfolded storage, the users can find the articles conveniently, the time and energy of the users are saved, and the use experience of the users is further improved. Condenser, radiator fan and compressor set gradually along transversely in the compressor storehouse, and the condenser sets up in the one side that is close to the heat dissipation air intake, and the compressor sets up in the one side that is close to the heat dissipation air outlet, and radiator fan sets up between condenser and compressor, so set up and effectively utilize the space when guaranteeing to satisfy technical requirement, reduce the area that occupies the storing space.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a schematic view of a structure of a refrigerator according to an embodiment of the present invention;
fig. 2 is an internal schematic view of a refrigerator according to an embodiment of the present invention;
fig. 3 is an exploded view of a refrigerator according to an embodiment of the present invention;
fig. 4 is a partial schematic view of a refrigerator according to an embodiment of the present invention;
fig. 5 is a partial cross-sectional view of a refrigerator according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of region R of FIG. 5;
fig. 7 is a partial schematic view of a refrigerator according to another embodiment of the present invention;
fig. 8 is a schematic view of a structure of a bottom of a case of a refrigerator according to an embodiment of the present invention; and
fig. 9 is an exploded view of fig. 8.
Detailed Description
The embodiment first provides a refrigerator, sets up the cooling chamber in storing space below, can make the storing space have certain altitude from the ground, avoids the user to bend down or squat down and gets the operation of putting the article, promotes user's use experience. The air return air duct enables the storage space arranged above the cooling chamber at intervals to return air to the cooling chamber, and the working reliability of the whole air path circulation of the refrigerator is effectively guaranteed. Fig. 1 is a schematic structural view of a refrigerator 100 according to an embodiment of the present invention, fig. 2 is an internal schematic view of the refrigerator 100 according to an embodiment of the present invention, fig. 3 is an exploded schematic view of the refrigerator 100 according to an embodiment of the present invention, fig. 4 is a partial schematic view of the refrigerator 100 according to an embodiment of the present invention, fig. 5 is a partial sectional view of the refrigerator 100 according to an embodiment of the present invention, fig. 6 is an enlarged schematic view of a region R in fig. 5, and fig. 7 is a partial schematic view of the refrigerator 100 according to another embodiment of the present invention. As shown in fig. 1 to 7, the refrigerator 100 of the present embodiment may generally include: the box 10, the door 20, the evaporator 21 and the return air duct 32.
Wherein, the box body 10 is internally limited with a cooling chamber 11 and at least one storage space which is arranged above the cooling chamber 11 at intervals. As shown in fig. 2, the refrigerator 100 of the present embodiment may include three storage spaces arranged from top to bottom: a first space 131, a second space 132, and a third space 133. The first space 131, the second space 132 and the third space 133 may be configured as a refrigerating space, a freezing space, a temperature changing space or a fresh keeping space according to the purpose. Each storage space may be divided into a plurality of storage areas by a division plate, and the storage of articles using racks or drawers.
Specifically, the refrigerator 100 of the present embodiment has a plurality of storage spaces defined therein, including a refrigerating space and at least one freezing space. As shown in fig. 2 and 3, the case 10 may include: a refrigerated liner 72 and a frozen liner 71. The freezing liner 71 defines therein a cooling chamber 11 and at least one freezing space located directly above the cooling chamber 11. The refrigerating liner 72 is disposed right above the freezing liner 71, and defines a refrigerating space therein. Specifically, the first space 131 is defined inside the refrigeration liner 72 of the present embodiment, and may be provided as a refrigeration space, the second space 132, the third space 133, and the cooling chamber 11 are defined inside the freezing liner 71, and the second space 132 and the third space 133 may be provided as a freezing space. That is, the second space 132 and the third space 133 of the refrigerator 100 of the present embodiment are adjacently disposed above the cooling chamber 11, and the first space 131 is spaced above the cooling chamber 11, and the return air to the cooling chamber is achieved through the return air duct 32.
In addition, the case 10 may further include: a housing 60 and an insulating layer (not shown). Wherein the housing 60 is disposed outside the freezing liner 71 and the refrigerating liner 72. The heat insulating layer is disposed between the casing 60 and the refrigerating liner 72 and the freezing liner 71 to insulate the heat outside the refrigerator 100.
The door 20 is provided at the front surface of the case 10 to operatively open and close the storage space. The door 20 is disposed corresponding to the storage spaces, i.e., each storage space corresponds to one or more doors. The door 20 may be pivotally disposed on the front surface of the case 10, for example, the door of the first space 131 of the present embodiment may be pivotally opened. The second space 132 and the third space 133 of the present embodiment may be drawer-type opened. The bottoms of the second space 132 and the third space 133 may be provided with drawer slides to ensure a gentle effect and noise reduction in the opening and closing process of the drawer.
The evaporator 21 is disposed horizontally in the cooling chamber 11 in a flat cubic shape as a whole, and is configured to supply cooling energy to the storage space. The evaporator 21 is horizontally arranged in the cooling chamber 11 in a flat cube shape, namely, the long and wide surfaces of the evaporator 21 are parallel to the horizontal plane, and the thickness surface is perpendicular to the horizontal plane. The evaporator 21 provides different amounts of cold to the various types of storage spaces, so that the temperatures within the various types of storage spaces are also different. For example, the temperature in the refrigerated space is generally between 2 ℃ and 10 ℃, preferably between 4 ℃ and 7 ℃. The temperature in the refrigerated space is generally in the range of-22 ℃ to-14 ℃. The optimal storage temperatures of different kinds of articles are not the same, and thus the storage spaces suitable for storage are not the same. For example, fruits and vegetables are suitable for storage in a refrigerated space or a fresh-keeping space, and meat is suitable for storage in a frozen space.
As shown in fig. 3, the refrigerator 100 may further include: the evaporator cover 111 is disposed over the evaporator 21, and defines a cooling chamber 11 as a top wall together with the freezing chamber 71. In a preferred embodiment, the front end of the evaporator cover 111 is provided with a refrigeration return air port 112 in communication with the refrigerated space to effect return air of the refrigerated space to the cooling compartment 11. Specifically, the refrigeration return 112 may be shutter-shaped. The second space 132 and the third space 133 of the present embodiment are provided adjacently above the cooling chamber 11 as cooling spaces, and return air to the cooling chamber 11 can be realized through the cooling return air port 112.
As shown in fig. 3, the refrigerator 100 may further include: and an air supply duct 31. The air supply duct 31 is disposed inside the rear walls of the refrigeration liner 72 and the freezing liner 71, as shown in fig. 3 and 4, and has an air supply inlet 312 at the bottom end thereof for communicating with the cooling chamber 11, and an air supply outlet 311 corresponding to the refrigeration space and the freezing space, respectively, so as to transfer the cooling capacity provided by the evaporator 21 to the storage space. Since the air supply outlet 311 is located at the rear side of each storage space, the cooling capacity of each storage space is transferred from the rear side to the front side.
In a preferred embodiment, as shown in fig. 4, a cooling fan 22 may be further disposed at the rear side of the evaporator 21, the cooling fan 22 may be disposed at the rear side of the evaporator 21 in a forward tilting manner, and the air outlet direction of the cooling fan 22 may face the air supply inlet 312, so that the cooling capacity generated by the evaporator 21 smoothly enters the air supply duct 31. The axis of the refrigeration fan 22 is at an angle of + -10 deg. to the inlet 312. And, the included angle between the axis of the cooling fan 22 and the horizontal plane is 30 ° to 45 °. The cooling fan 22 is obliquely arranged according to the angle, so that the smoothness of the whole air path can be effectively ensured, and the working reliability of the refrigerator 100 is improved.
As shown in fig. 3, the return air duct 32 may be disposed on any side wall of the refrigerating liner 72 and the freezing liner 71, and has a return air inlet at an upper end thereof for communicating with the refrigerating space, and a return air outlet at a lower end thereof for communicating with the cooling chamber 11, so as to return the refrigerating space to the cooling chamber 11. Specifically, the return air inlet is disposed at the front portion of the sidewall of the refrigeration liner 72, the return air outlet 323 is disposed at the front portion of the sidewall of the same side of the refrigeration liner 71, and the return air outlet 323 is disposed on the sidewall of the refrigeration liner 71 at the cooling chamber 11. The return air inlet and outlet 323 are disposed at the front parts of the side walls of the refrigerating liner 72 and the freezing liner 71, so that the cold energy in the refrigerating space can be fully cooled from the back to the front, and then returned to the cooling chamber 11 through the return air duct. In a preferred embodiment, the return air duct 32 may be provided in two and may be symmetrically disposed on both sidewalls of the refrigeration liner 72 and the freezing liner 71.
The first space 131 in this embodiment is a refrigerating space, and an independent temperature changing space may be further disposed inside the first space. The temperature change space can be internally provided with a heater, so that the article can be heated in a closed manner, and the temperature of the external refrigeration space is not influenced when the article is heated. Thus, as shown in fig. 4, a refrigerating air return inlet 321 and a temperature-changing air return inlet 322 are provided at the first space 131 in this embodiment, so that both the refrigerating space and the temperature-changing space can independently realize air return through the air return duct 32. After the air in the refrigerating space and the temperature changing space is returned to the cooling chamber 11, the evaporator 21 can be effectively defrosted.
As shown in fig. 5 and 6, the region R is a return air outlet 323 where the return air duct 32 communicates with the cooling chamber 11, and a drainage slope 33 is provided. As shown in fig. 7, a heater wire 34 is further disposed at the return air outlet 323. The drain slope 33 and the heater wire 34 cooperate to remove ice water present at the return air outlet 323. When the high-temperature and high-humidity gas in the refrigerating space approaches the ambient temperature under the circulating action of the air passage, condensation and even frosting may occur. The return air outlet 323 where the return air duct 32 communicates with the cooling chamber 11 may be blocked by frost for a long time, and a drainage slope 33 and a heating wire 34 are provided to avoid this problem. The water draining slope 33 can drain the ice water existing in the water draining slope, and the heating wire 34 can work according to the corresponding program to assist in draining the ice water.
Fig. 8 is a schematic view of the structure of the bottom of the case 60 of the refrigerator 100 according to an embodiment of the present invention, and fig. 9 is an exploded schematic view of fig. 8. As shown in fig. 8 and 9, the housing 60 may include: a first base plate 61, a second base plate 62 and an air guiding cover plate 63. The first bottom plate 61 is disposed below the freezing liner 71, and includes: a front bottom plate 611 positioned at a front side of a bottom of the refrigerator 100, a tilting plate 612 extending obliquely upward and rearward from a rear end of the front bottom plate 611, and a rear top plate 613 extending rearward from an upper end of the tilting plate 612, the tilting plate 612 being provided with a window 614. The second bottom plate 62 is positioned below the rear top plate 613, and a gap is formed between the front end of the second bottom plate 62 and the rear end of the front bottom plate 611. The air guiding cover plate 63 is covered at the window 614 and divides the gap into a heat dissipation air inlet 121 and a heat dissipation air outlet 122.
In addition, the housing 60 may further include: the two side plates 64 and one back plate 65 are configured to define, in combination with the back top plate 613 and the second bottom plate 62, a compressor compartment 12, the compressor compartment 12 being located rearward of the cooling compartment 11. The refrigerator 100 may further include: the condenser 25, the heat dissipation fan 24 and the compressor 23 are sequentially arranged in the compressor bin 12 along the transverse direction, the condenser 25 is arranged on one side close to the heat dissipation air inlet 121, the compressor 23 is arranged on one side close to the heat dissipation air outlet 122, and the heat dissipation fan 24 is arranged between the condenser 25 and the compressor 23. The components are arranged in the compressor bin 12 in such a way that the space is effectively utilized while the technical requirements are met, and the area occupying the storage space is reduced. In a specific embodiment, the refrigerator 100 may further include: the evaporation pan 50 is disposed below the condenser 25, so as to evaporate the moisture in the evaporation pan 50 by using the heat of the condenser 25, and take away the moisture by the heat dissipation fan 24 to dissipate heat.
It should be noted that, the refrigerator 100 of the embodiment may be an embedded refrigerator, and in order to ensure the overall aesthetic degree, the reserved distance between the embedded refrigerator and the surrounding walls or cabinets is smaller, and the bottom air inlet and bottom air outlet may be adopted. Therefore, the refrigerator 100 of the embodiment is provided with the heat dissipation air inlet 121 and the heat dissipation air outlet 122 at the bottom of the casing 60, and the air outside the refrigerator 100 enters the compressor bin 12 from the heat dissipation air inlet 121, sequentially passes through the condenser 25, the heat dissipation fan 24 and the compressor 23, and flows out from the heat dissipation air outlet 122, so that the whole heat dissipation cycle process is reasonably completed.
The refrigerator 100 of the present embodiment includes: a case 10 having a cooling chamber 11 and at least one storage space spaced above the cooling chamber 11 defined therein; a door body 20 provided at a front surface of the case body 10 to operatively open and close the storage space; an evaporator 21 which is horizontally arranged in the cooling chamber 11 in a flat cube shape as a whole and is configured to supply cold to the storage space; and a return air duct 32, the upper end of which is provided with a return air inlet communicated with the storage space arranged above the cooling chamber 11 at intervals, the lower end of which is provided with a return air outlet 323 communicated with the cooling chamber 11 so as to realize the return air of the storage space to the cooling chamber 11, and the return air outlet 323 is provided with a drainage inclined plane 33 and a heating wire 34 so as to remove ice water existing at the return air outlet 323. The cooling chamber 11 is arranged below the storage space, so that the storage space has a certain ground clearance, the user is prevented from bending down or squatting down to take and put articles, and the use experience of the user is improved. When the high-temperature and high-humidity gas in the refrigerating space approaches the ambient temperature under the circulating action of the air passage, condensation and even frosting may occur. The return air outlet 323 of the return air duct 32 communicated with the cooling chamber 11 may be blocked by frost, and the drainage inclined plane 33 and the heating wire 34 are arranged at the position to avoid the problem, so that the smoothness of the whole air path is effectively ensured, and the working reliability of the refrigerator 100 is improved.
Further, the refrigerator 100 of the present embodiment has a freezing liner 71 having a cooling chamber 11 and at least one freezing space located directly above the cooling chamber 11 defined therein. The evaporator cover 111 is disposed over the evaporator 21, and defines a cooling chamber 11 as a top wall together with the freezing chamber 71. The front end of the evaporator cover 111 is provided with a refrigerating air return port 112 communicating with the refrigerating space to return the refrigerating space to the cooling chamber 11. The refrigerating space adjacently arranged above the cooling chamber 11 is directly returned through the refrigerating air return port 112 at the front end of the evaporator cover plate 111, so that the space of the refrigerator 100 in the depth direction is prevented from being occupied by the return air duct arranged on the rear wall of the refrigerating space, and the storage volume is effectively increased. The return air duct 32 can avoid that the cooling chamber 11 can only return air to the refrigerating space when being arranged below the refrigerating space, but can not return air to the refrigerating space above the refrigerating space, thereby effectively ensuring the working reliability of the whole air path circulation of the refrigerator 100.
Still further, in the refrigerator 100 of the present embodiment, the cooling chamber 11 and the compressor compartment 12 are all disposed at the bottom of the box 10, and the compressor compartment 12 is disposed at the rear of the cooling chamber 11, so that the storage space above the compressor compartment 12 and the cooling chamber 11 is realized as a planar space, and the availability of the storage space is improved compared with a special-shaped space. In addition, the depth of the storage space is effectively reduced, so that the storage of the articles is changed from stacked storage to unfolded storage, the users can find the articles conveniently, the time and energy of the users are saved, and the use experience of the users is further improved. The condenser 25, the heat dissipation fan 24 and the compressor 23 are arranged in the compressor bin 12 in sequence along the transverse direction, the condenser 25 is arranged on one side close to the heat dissipation air inlet 121, the compressor 23 is arranged on one side close to the heat dissipation air outlet 122, the heat dissipation fan 24 is arranged between the condenser 25 and the compressor 23, so that the space is effectively utilized while the technical requirements are met, and the area occupying the storage space is reduced.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (7)

1. A refrigerator, comprising:
the box body is internally limited with a cooling chamber and at least one storage space which is arranged above the cooling chamber at intervals;
the door body is arranged on the front surface of the box body and is used for operably opening and closing the storage space;
an evaporator which is horizontally arranged in the cooling chamber in a flat cube shape as a whole and is configured to provide cooling capacity for the storage space; and
the upper end of the return air duct is provided with a return air inlet communicated with the storage space above the cooling chamber at intervals, the lower end of the return air duct is provided with a return air outlet communicated with the cooling chamber so as to realize the return air of the storage space to the cooling chamber, the return air outlet is provided with a drainage inclined plane and a heating wire so as to remove ice water existing at the return air outlet,
a plurality of storage spaces including a refrigerating space and at least one freezing space are defined inside the case, and the case includes: a freezing liner having the cooling chamber and at least one freezing space located directly above the cooling chamber defined therein; the refrigerating liner is arranged right above the freezing liner, and the refrigerating space is limited in the refrigerating liner;
the box further includes: the shell is arranged outside the freezing inner container and the refrigerating inner container; the heat preservation layer is arranged between the shell and the refrigerating liner and between the refrigerating liner and the freezing liner so as to isolate heat outside the refrigerator;
the housing includes: the first bottom plate set up in the below of freezing inner bag includes: a front bottom plate positioned at the front side of the bottom of the refrigerator, an inclined plate extending obliquely upwards and backwards from the rear end of the front bottom plate, and a rear top plate extending backwards from the upper end of the inclined plate, wherein a window is arranged on the inclined plate; the second bottom plate is positioned below the rear top plate, and the front end of the second bottom plate and the rear end of the front bottom plate are arranged at intervals to form a gap; and an air guide cover plate, which is arranged at the window and separates the gap into a heat dissipation air inlet and a heat dissipation air outlet,
the storage space is divided into a plurality of storage areas by the dividing plate.
2. The refrigerator of claim 1, further comprising:
the evaporator cover plate is covered above the evaporator and serves as a top wall to jointly define the cooling chamber with the freezing inner container.
3. The refrigerator of claim 2, wherein,
the front end of the evaporator cover plate is provided with a refrigerating air return opening communicated with the refrigerating space so as to enable the refrigerating space to return air to the cooling chamber.
4. The refrigerator of claim 1, further comprising:
the air supply duct is arranged on the inner sides of the rear walls of the refrigerating inner container and the freezing inner container, the bottom end of the air supply duct is provided with an air supply inlet communicated with the cooling chamber, and air supply outlets are respectively arranged corresponding to the refrigerating space and the freezing space so as to transfer the cold energy provided by the evaporator to the storage space; and is also provided with
The air return duct is arranged on any side wall of the refrigeration liner and any side wall of the refrigeration liner, the upper end of the air return duct is provided with an air return inlet communicated with the refrigeration space, and the lower end of the air return duct is provided with an air return outlet communicated with the cooling chamber so as to realize air return of the refrigeration space to the cooling chamber.
5. The refrigerator of claim 4, wherein,
the air return inlet is arranged at the front part of the side wall of the refrigerating liner, and the air return outlet is arranged at the front part of the side wall of the same side of the refrigerating liner.
6. The refrigerator of claim 4, wherein,
the two return air channels are symmetrically arranged at the front parts of the two side walls of the refrigerating liner and the freezing liner.
7. The refrigerator of claim 1, wherein the housing further comprises:
two side plates and a back plate configured to define, with the rear top plate and the second bottom plate, a compressor compartment located behind the cooling chamber, and
the refrigerator further includes: the cooling device comprises a compressor bin, a condenser, a cooling fan and a compressor, wherein the condenser, the cooling fan and the compressor are sequentially arranged in the compressor bin along the transverse direction, the condenser is arranged on one side close to the cooling air inlet, the compressor is arranged on one side close to the cooling air outlet, and the cooling fan is arranged between the condenser and the compressor.
CN201810333864.3A 2018-04-13 2018-04-13 Refrigerator with improved air duct structure Active CN110375488B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112097445B (en) * 2020-09-15 2021-11-30 海信容声(广东)冰箱有限公司 A kind of refrigerator
CN113639512B (en) * 2021-08-17 2023-02-03 长虹美菱股份有限公司 Cooling chamber return air structure and refrigerator
CN115507604B (en) * 2022-09-30 2024-02-23 海信冰箱有限公司 Refrigerator with a refrigerator body

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WO2011060500A1 (en) * 2009-11-20 2011-05-26 Electrolux Home Products Pty Limited A condensation inhibition arrangement and cold or cool appliance construction
CN105333672A (en) * 2015-11-25 2016-02-17 青岛海尔股份有限公司 Drawer type refrigerator
CN105783368A (en) * 2014-12-19 2016-07-20 博西华电器(江苏)有限公司 Refrigerator
CN107621114A (en) * 2016-07-13 2018-01-23 海信容声(广东)冰箱有限公司 A kind of wind cooling refrigerator
CN208817810U (en) * 2018-04-13 2019-05-03 青岛海尔股份有限公司 Refrigerator

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Publication number Priority date Publication date Assignee Title
WO2011060500A1 (en) * 2009-11-20 2011-05-26 Electrolux Home Products Pty Limited A condensation inhibition arrangement and cold or cool appliance construction
CN105783368A (en) * 2014-12-19 2016-07-20 博西华电器(江苏)有限公司 Refrigerator
CN105333672A (en) * 2015-11-25 2016-02-17 青岛海尔股份有限公司 Drawer type refrigerator
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CN208817810U (en) * 2018-04-13 2019-05-03 青岛海尔股份有限公司 Refrigerator

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