Refrigerator capable of preventing air supply duct from falling

Abstract

The refrigerator comprises a top cover which divides a lowermost storage inner container into an upper storage space and a lower cooling space, an evaporator is arranged in the cooling space, and the air supply duct is arranged on the inner side of the rear wall of the storage inner container and communicates with the cooling space. The air flow conveying device is configured to convey at least part of the cooling air flow into the storage space, the height of the storage space located above the cooling space is increased through the cooling space, the bending degree of a user when the user takes and places articles in the storage space is reduced, and the use experience of the user is improved; the top cover comprises a top cover body and a supporting part protruding upwards from the rear end of the top cover body, a bearing part protruding forwards is formed on the front wall face of the air supply duct, and the top cover and the air supply duct are arranged in the mode that the supporting part abuts against the bearing part so that the air supply duct can be prevented from falling.

Description

[0001] This application is a divisional application of the Chinese patent application with application number 201910142771.7, application date February 26, 2019, and application name “Refrigerator for preventing air supply duct from falling”. Technical Field

[0002] The invention relates to the technical field of household appliances, and in particular to a refrigerator capable of preventing an air supply duct from falling. Background Art

[0003] In existing refrigerators, the evaporator is generally located at the rear of the lowest 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 items that are difficult to separate. Summary of the invention

[0004] In view of the above problems, an object of the present invention is to provide a refrigerator that overcomes the above problems or at least partially solves the above problems.

[0005] A further object of the present invention is to improve the stability of the air supply duct assembly.

[0006] The present invention provides a refrigerator, comprising:

[0007] The box body includes a storage liner located at the bottom;

[0008] A top cover is configured to separate the storage liner into a storage space located above and a cooling space located below;

[0009] an evaporator, disposed in the cooling space and configured to cool an airflow entering the cooling space to form a cooling airflow;

[0010] an air supply duct, disposed on the inner side of the rear wall of the storage liner, communicating with the cooling space, and configured to deliver at least part of the cooling airflow into the storage space;

[0011] The top cover includes a top cover body and a supporting portion protruding upward from the rear end of the top cover body, the front wall surface of the air supply duct is formed with a supporting portion protruding forward, and the top cover and the air supply duct are arranged so that the supporting portion supports the supporting portion to prevent the air supply duct from falling.

[0012] Optionally, the supporting portion extends from the back to the front in a downwardly inclined manner;

[0013] The upper end surface of the support portion includes a first inclined section extending downwardly from the back to the front, so that the formed condensed water flows forward and downward along the first inclined section to the top cover body.

[0014] Optionally, the front end surface of the support portion includes a vertical section extending vertically, and the vertical section is connected to the first inclined section through a first transition curved section to guide the condensed water to the top cover body.

[0015] Optionally, the upper surface of the top cover body includes a second inclined section extending downward from the back to the front, and the second inclined section is connected to the vertical section through a second transition curved section to guide the condensed water.

[0016] Optionally, the upper surface of the top cover body further includes a horizontal section extending forward from the front end of the second inclined section, and the horizontal section is formed with at least one water collecting trough to collect condensed water flowing down from the second inclined section.

[0017] Optionally, the air supply duct includes a duct front cover plate and a duct rear cover plate located at the rear side of the duct front cover plate, the duct front cover plate and the duct rear cover plate define a channel communicating with the cooling space, and the duct front cover plate is formed with a supporting portion;

[0018] In addition, the front cover plate of the air duct and the rear cover plate of the air duct are fixed by screws passing through the center of the air supply duct.

[0019] Optionally, the refrigerator further comprises:

[0020] 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 to enter the air supply duct.

[0021] Optionally, the refrigerator further comprises:

[0022] At least one return air cover is arranged at the front end of the top cover, and defines a cooling space together with the top cover and the bottom wall of the storage liner;

[0023] The return air hood includes:

[0024] The return air frame body located at the front side has a first opening formed on the front wall surface and an open rear end;

[0025] The return air rear cover is inserted into the return air frame from the rear end opening of the return air frame, and is configured to separate the first opening into a first front return air inlet located above and a second front return air inlet located below, so as to facilitate the return air of the storage space to flow back to the cooling space through the first front return air inlet and the second front return air inlet.

[0026] Optionally, the return air frame includes a first guide oblique section extending from the upper end of the front wall surface of the return air frame toward the rear and upward, and a second guide oblique section extending from the position of the front wall surface of the return air frame toward the rear and downward;

[0027] The return air rear cover includes a third guide oblique section extending from back to front to front and downward, a fourth guide oblique section extending from the lower end of the third guide oblique section to the front and downward, a fifth guide oblique section extending from the front end of the fourth guide oblique section to the rear and downward, and a sixth guide oblique section extending from the lower end of the fifth guide oblique section to the rear and downward;

[0028] Furthermore, the first guide oblique section, the third guide oblique section and the fourth guide oblique section define a first return air duct located behind the first front return air inlet, and the third guide oblique section is formed with a second opening;

[0029] The second guide oblique section and the sixth guide oblique section define a second return air duct located behind the second front return air inlet.

[0030] Optionally, the connection between the fourth guide slope section and the fifth guide slope section is located directly below the first guide slope section, so that the condensed water condensed on the return air frame can drip along the first guide slope section to the connection between the fourth guide slope section and the fifth guide slope section, and drip along the fifth guide slope section to the second guide slope section, and then flow to the bottom of the evaporator.

[0031] Optionally, the storage liner is a freezer liner and the storage space is a freezer space;

[0032] The refrigerator also includes:

[0033] The variable temperature liner is located directly above the storage liner and defines a variable temperature space therein;

[0034] The refrigeration inner tank is located directly above the temperature-variable inner tank, and defines a refrigeration space therein.

[0035] In the refrigerator of the present invention, the space at the bottom of the refrigerator is the cooling space, which raises the height of the storage space above the cooling space, reduces the degree of bending of the user when taking and placing items in the storage space, and improves the user experience; in addition, the top cover and the air supply duct have a special design structure, which prevents the air supply duct from falling when subjected to external force, making the installation of the air supply duct more stable, thereby ensuring the refrigeration effect during the operation of the refrigerator.

[0036] Furthermore, in the refrigerator of the present invention, the specially designed structures of the supporting part and the support part and the specially designed structure of the top cover body have the function of guiding and draining water, which is convenient for collecting condensed water on the top cover and facilitating timely cleaning by the user.

[0037] Furthermore, in the refrigerator of the present invention, two return air inlets are formed on the front side of the return air hood, which is not only visually pleasing, but also can effectively prevent children's fingers or foreign objects from entering the cooling space; and, the two return air areas distributed up and down can make the return air flow through the evaporator more evenly after entering the cooling space, which can avoid the problem of frosting on the front end surface of the evaporator to a certain extent, which can not only improve the heat exchange efficiency, but also extend the defrost cycle, saving energy and being efficient.

[0038] Furthermore, 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 guide the condensed water formed on the return air cover to facilitate drainage, avoid the production of water dripping sound that is perceptible to the human ear, and enhance the user experience.

[0039] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0041] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

[0042] Figure 2 It is a front view of the storage liner, air supply duct, return air cover, top cover and other components of a refrigerator after being assembled according to one embodiment of the present invention;

[0043] Figure 3 yes Figure 2 A magnified image of area A;

[0044] Figure 4 is a first partial exploded schematic diagram of a refrigerator according to an embodiment of the present invention;

[0045] Figure 5 It is a three-dimensional schematic diagram of the combination of a storage liner, an air supply duct, an air return cover, a top cover and other components of a refrigerator according to an embodiment of the present invention;

[0046] Figure 6 is a side view of an assembly of an air supply duct, an air return cover, a top cover, an evaporator and an air supply fan of a refrigerator according to an embodiment of the present invention;

[0047] Figure 7 is a second partial exploded schematic diagram of a refrigerator according to an embodiment of the present invention;

[0048] Figure 8 is an exploded schematic diagram of a return air frame and a return air rear cover of a refrigerator according to an embodiment of the present invention;

[0049] Fig. 9 is a partial cross-sectional view of a refrigerator according to an embodiment of the present invention; and

[0050] Fig.10 yes Fig. 9 Magnified view of area B in the middle. DETAILED DESCRIPTION

[0051] This embodiment provides a refrigerator 100. Figures 1 to 10 In the following description, the directions or positional relationships indicated by "front", "rear", "up", "down", "lateral", etc. are directions or positional relationships based on the refrigerator 100 itself as a reference. Figure 1 The direction indicated, such as Figure 2 As shown, “lateral” refers to a direction parallel to the width direction of the refrigerator 100 .

[0052] like Figure 1 As shown, the refrigerator 100 may generally include a box body, which includes an outer shell and at least one storage liner arranged on the inner side of the outer shell, the space between the outer shell and the storage liner is filled with insulation material (forming a foaming layer), the storage liner defines a storage space, and a corresponding door body is also provided on the front side of each storage liner to open and close the corresponding storage space.

[0053] The storage liner 130 at the bottom may be a freezer liner, and accordingly, the storage space 132 is a freezer space. Figure 1 As shown, there are multiple storage liners, namely, a storage liner 130 located at the bottom, two laterally distributed variable temperature liners 131 located just above the storage liner 130, and a refrigeration liner 120 located just above the two variable temperature liners 131. Each variable temperature liner 131 defines a variable temperature space, and the refrigeration liner 120 defines a refrigeration space 121.

[0054] As is well known to those skilled in the art, the temperature in the refrigerated space 121 is generally between 2°C and 10°C, preferably between 4°C and 7°C. The temperature in the freezer space is generally between -22°C and -14°C. The variable temperature space can be adjusted to -18°C to 8°C at will. Different types of items have different optimal storage temperatures and different suitable storage locations. For example, fruit and vegetable foods are suitable for storage in the refrigerated space 121, while meat foods are suitable for storage in the freezer space.

[0055] As those skilled in the art can appreciate, 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), etc. The evaporator 101 is connected to the compressor, the condenser, and the throttling element via a refrigerant pipeline to form a refrigeration cycle, and the temperature is reduced when the compressor is started to cool the air flowing through it.

[0056] In particular, in the present embodiment, the refrigerator 100 further includes a top cover 103, which is configured to separate the storage liner 130 located at the bottom into a storage space 132 located at the top and a cooling space located at the bottom, and the evaporator 101 is arranged in the cooling space.

[0057] In a traditional refrigerator 100, the bottom space of the refrigerator 100 is generally a storage space, which is located at a relatively low position. Users need to bend over or squat significantly to take and put items in the bottom storage space, which is inconvenient for users, especially for the elderly. In addition, since the evaporator occupies the rear area of ​​the bottom storage space, the depth of the bottom storage space is reduced. Furthermore, since the compressor cabin is generally located at the rear of the bottom storage space, the bottom storage space inevitably has to make way for the compressor cabin, resulting in the bottom storage space being irregular in shape, which is not convenient for storing large items that are difficult to divide.

[0058] In the refrigerator 100 of this embodiment, the bottom space of the refrigerator 100 is the cooling space, which raises the height of the storage space 132 located above the cooling space, reduces the degree of bending when the user takes out and puts items in the storage space 132, and improves the user's experience. In addition, the depth of the storage space 132 is guaranteed, and the press cabin can be located at the lower rear of the storage space 132. The storage space 132 does not need to make way for the press cabin, presenting a large and regular rectangular space, which is convenient for placing large and difficult to divide items, solving the pain point that large items cannot be placed in the storage space 132.

[0059] The evaporator 101 cools the airflow entering the cooling space to form a cooling airflow, and at least part of the cooling airflow is transported to the storage space 132 through the air supply duct 141. The air supply duct 141 can be arranged on the inner side of the rear wall of the storage liner 130 and communicated with the cooling space. Figure 1 As shown, the air supply duct 141 is formed with a plurality of air supply outlets 141 a communicating with the storage space 132 .

[0060] The refrigerator 100 also includes a variable temperature air duct (not shown) for conveying cooling air flow to the variable temperature space. The variable temperature air duct and the air supply duct 141 can be controllably connected through a variable temperature air door (not shown) to guide part of the cooling air flow in the air supply duct 141 into the variable temperature air duct.

[0061] The refrigerator 100 may also include a refrigeration air duct (not shown) for conveying cooling airflow to the refrigerated space. The refrigeration air duct may be controllably connected to the air supply duct 141 through a refrigeration air door to guide part of the cooling airflow of the air supply duct 141 into the refrigeration air duct. In some alternative embodiments, another evaporator may be arranged in the refrigeration liner 120 to cool the refrigerated space 121 by air cooling or direct cooling to form a refrigerator 100 with a dual refrigeration system to prevent odor from mixing between the storage space 132 and the refrigerated space 121.

[0062] In particular, if Figure 4 , and combined with Figure 3 As shown, 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 supply duct 141 is formed with a supporting portion 141b protruding forward. When the top cover 103 and the air supply duct 141 are assembled, the supporting portion 103b supports the supporting portion 141b to prevent the refrigerator 100 from being hit during transportation and causing the air supply duct 141 to fall.

[0063] The top of the air supply duct 141 usually passes through the top wall of the storage liner 130 to connect to the duct supplying air to other storage spaces (for example, the variable temperature duct (not shown) supplying air to the variable temperature space above the bottom storage liner 130). Figure 5 and Figure 7 As shown, a first top opening 141g is formed at the top of the air supply duct 141, and a second top opening 130d corresponding to the first top opening 141g is formed on the top wall of the storage liner 130, so that the first top opening 141g is connected to the air inlet of the variable temperature room duct through the second top opening 130d.

[0064] A damper may be provided at the first top opening 141g of the air supply duct 141 to control the opening and closing of the first top opening 141g. Figure 1 As shown, there are two variable temperature inner tanks 131, and accordingly, there are two variable temperature room air ducts, and there are two first top openings 141g and two second top openings 130d.

[0065] During the transportation of the refrigerator 100, it is inevitable that it will be hit, which may easily cause the air supply duct 141 to fall. Once the air supply duct 141 falls, a gap will appear 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. During the operation of the refrigerator 100, wind will cross-wind between the variable temperature space and the storage space 132 below, affecting the temperatures of the storage space 132 and the variable temperature space, and easily causing frost near the top of the air supply duct 141, affecting the delivery of cooling airflow and reducing the refrigeration effect.

[0066] In this embodiment, by specially designing the top cover 103 and the air supply duct 141 as above, the air supply duct 141 can be prevented from falling when subjected to external force, making the installation of the air supply duct 141 more stable, thereby ensuring the cooling effect during the operation of the refrigerator 100.

[0067] like Figure 6 , and combined with Figure 1 As shown, the air supply duct 141 includes a duct front cover plate 1411 and a duct rear cover plate 1412 located at the rear side of the duct front cover plate 1411. Accordingly, the duct front cover plate 1411 constitutes the front wall surface of the air supply duct 141, that is, the duct front cover plate 1411 is formed with the aforementioned supporting portion 141b; the duct front cover plate 1411 and the duct rear cover plate 1412 define a channel connected to the cooling space.

[0068] The air duct front cover plate 1411 and the air duct rear cover plate 1412 are fixed by screws (not shown) passing through the center of the air supply duct 141. Figure 1 As shown, a screw through hole 141c is formed at the approximate center of the air duct front cover 1411. Figure 7 As shown, a screw column 141d 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 locked together by screws passing through the screw through holes 141c and the screw column 141d, thereby assembling the air duct front cover plate 1411 and the air duct rear cover plate 1412 together. The aforementioned special design structure for preventing the air supply duct 141 from falling also avoids the problem of the air duct front cover plate 1411 moving down when the screws are loose.

[0069] Further particularly, the supporting portion 141b extends downwardly from back to front, and the upper end surface of the supporting portion 103b includes a first inclined section 103b1 extending downwardly from back to front, and the condensed water can flow forward and downward along the inclined surface of the supporting portion 141b and the inclined surface of the first inclined section 103b1 to the top cover body 103a.

[0070] The front end surface of the support portion 103b may include a vertical section 103b2 extending vertically, the vertical section 103b2 is connected to the first inclined section 103b1 through a first transition curve, and the vertical section 103b2 guides the condensed water sliding down the first inclined section 103b1 to the top cover body 103a.

[0071] The upper surface of the top cover body 103a may include a second inclined section 103a1 extending downward from the back to the front, and the second inclined section 103a1 is connected to the vertical section 103b2 through a second transition curve to further guide the condensed water.

[0072] 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 to collect the condensed water flowing down from the second inclined section 103a1, so that the user can centrally clean the condensed water. In this way, the special structure of the top cover 103 is used to realize the function of diversion and drainage. Figure 4 As shown, the horizontal section 103a2 is formed with two water collecting grooves 103a3 which are spaced apart from each other in the transverse direction.

[0073] In some embodiments, Figure 6 As shown, 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 force the cooling air flow into the air supply duct 141 to accelerate the air flow circulation and improve the refrigeration speed.

[0074] The blower 104 may be a centrifugal blower, an axial flow blower or a cross flow blower. Figure 6 As shown, in this embodiment, the blower 104 is a centrifugal blower, and the blower 104 is arranged upwardly tilted from front to back, and the blower 104 is detachably connected to the air supply duct 141. When the refrigerator 100 is assembled, the air duct rear cover plate 1412 is first assembled with the blower 104, and the air duct front cover plate 1411 is then assembled with the blower 104, and then the top cover 103 is installed on the storage liner 130, and the positions of the air duct rear cover plate 1412, the air duct front cover plate 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 plate 1411.

[0075] like Figure 4 and Figure 6 As shown, the rear end of the top cover 103 is formed with a positioning protrusion 103c protruding backwards, and the rear wall of the storage liner 130 is formed with a positioning groove (not shown) corresponding to and matching the positioning protrusion 103c. There can be two positioning protrusions 103c, which 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. In this way, the top cover 103 is assembled on the storage liner 130.

[0076] like Figures 1 to 4 As shown, the refrigerator 100 further includes at least one return air cover 102 , which is disposed at the front end of the top cover 103 and defines the aforementioned cooling space together with the top cover 103 and the bottom wall of the storage liner 130 .

[0077] Each return air hood 102 includes a return air frame 1021 and a return air rear cover 1022 located at the front side. The front wall of the return air frame 1021 is formed with a first opening 102c, and the rear end is open. The return air rear cover 1022 is inserted into the return air frame 1021 from the rear end opening of the return air frame 1021, and is configured to separate the first opening 102c into a first front return air inlet 102b located at the top and a second front return air inlet 102a located at the bottom, so as to facilitate the return air of the storage space 132 to flow back to the cooling space through the first front return air inlet 102b and the second front return air inlet 102a, and be cooled by the evaporator 101, thereby forming an air flow circulation between the storage space 132 and the cooling space.

[0078] In the present embodiment, two return air inlets (a first front return air inlet 102b and a second front return air inlet 102a) are formed on the front side of the return air hood 102, which are not only visually pleasing, but also can effectively prevent children's fingers or foreign objects from entering 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 on the front end surface of the evaporator 101 to a certain extent, which can not only improve the heat exchange efficiency, but also extend the defrost cycle, saving energy and being efficient.

[0079] like Figure 2 , Figure 5 As shown, there are two return air hoods 102, which are spaced apart in the transverse direction, and a vertical beam 150 is provided between the two return air hoods 102. The vertical beam 150 extends vertically upward to the top wall of the storage liner 130 to separate the front side of the storage liner 130 into two transversely distributed areas.

[0080] Two double-door bodies (not shown) may be provided on the front side of the storage liner 130 , and the two doors are used to open and close the two areas separated by the vertical beam 150 .

[0081] In particular, if Figures 8 to 10 As shown, the return air frame 1021 includes a first guide oblique section 1021a extending rearward and upward from the upper end of the front wall of the return air frame 1021, and a second guide oblique section 1021c extending rearward and downward from the position of the front wall of the return air frame 1021 near the lower end; the return air rear cover 1022 includes a third guide oblique section 1022a extending from back to front and forward and downward, a fourth guide oblique section 1022b extending forward and downward from the lower end of the third guide oblique section 1022a, a fifth guide oblique section 1022c extending rearward and downward from the front end of the fourth guide oblique section 1022b, and a sixth guide oblique section 1022d extending rearward and downward from the lower end of the fifth guide oblique section 1022c.

[0082] See also Fig.10The first guide oblique section 1021a, the third guide oblique section 1022a and the fourth guide oblique section 1022b define a first return air duct (not numbered) located behind the first front return air inlet 102b, and the third guide oblique section 1022a is formed with a second opening 102d. The return air entering from the first front return air inlet 102b enters the cooling space through the first return air duct and the second opening 102d, enters the evaporator 101 from the upper section of the evaporator 101 to exchange heat with the evaporator 101. The second guide oblique section 1021c and the sixth guide oblique section 1022d define a second return air duct (not numbered) located behind the second front return air inlet 102a. The return air entering from the second front return air inlet 102a enters the cooling space through the second return air duct, enters the evaporator 101 from the lower section of the evaporator 101 to exchange heat with the evaporator 101.

[0083] like Fig.10 As shown, Fig.10 The dotted arrows in the figure schematically indicate 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, improving the heat exchange efficiency. In addition, the design of each inclined section of the return air frame 1021 and the design of each inclined section of the return air rear cover 1022 guide the condensed water condensed on the return air cover 102 for easy drainage.

[0084] like Figure 8 As shown, the second opening 102 d is in a vertical strip shape, and a plurality of second openings 102 d are sequentially distributed in the transverse direction to disperse the return air so that the return air enters the upper section of the evaporator 101 more evenly.

[0085] The sixth guide section 1022d may be formed with a plurality of third openings (not shown) distributed in sequence in the transverse direction. The return air passing through the second return air channel is diverted by each third opening and then enters the cooling space, so that the return air enters the lower section of the evaporator 101 more evenly.

[0086] The sixth diverter section 1022d may form a mounting portion (not numbered), such as Figure 8 As shown, the sixth guide oblique section 1022d is formed with two installation parts distributed laterally at intervals. Correspondingly, the second guide oblique section 1021c of the return air frame 1021 is formed with a matching part that matches with the corresponding mounting part to assemble the return air frame 1021 and the return air rear cover 1022.

[0087] like Figure 4 As shown, and refer to Figure 8 and Fig.10The 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 above and behind 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 .

[0088] The return air rear cover 1022 also includes a shielding portion (referred to as the first shielding portion 1022e) extending rearward and upward from the third guide inclined section 1022a to the front end of the top cover 103. The first shielding portion 1022e is configured to shield the section of the upper surface of the evaporator 101 that is 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 connected to the second opening 102d. At least part of the return air entering through the second opening 102d can enter the evaporator 101 from above the evaporator 101 via the airflow bypass.

[0089] The space facing each other between the top cover 103 and the upper surface of the evaporator 101 is filled with windproof foam, that is, the rear of the airflow bypass is filled with windproof foam, so that the return air passing through the airflow bypass flows into the evaporator 101. This ensures that even when the front end of the evaporator 101 is frosted, the return air still enters the evaporator 101 to exchange heat with it, thereby ensuring the refrigeration effect of the evaporator 101, solving the problem of reduced refrigeration effect of the existing refrigerator 100 due to frosting on the front end of the evaporator 101, and improving the refrigeration performance of the refrigerator 100.

[0090] like Figure 8 and Fig.10 As shown, the return air frame 1021 also includes a second shielding portion 1021b that bends backward and upward from the first guide inclined section 1021a and extends to the top cover 103. The second shielding portion 1021b completely shields the first shielding portion 1022e to maintain the beautiful appearance of the return air cover 102.

[0091] See more particularly Fig.10 , the connection point C between the fourth guide slope 1022b and the fifth guide slope 1022c is located directly below the first guide slope 1021a, and the condensed water formed on the return air frame 1021 drips downward along the inclined surface of the first guide slope 1021a to the connection point C between the fourth guide slope 1022b and the fifth guide slope 1022c directly below (that is, the corner between the fourth guide slope 1022b and the fifth guide slope 1022c), and then drips along the inclined surface of the fifth guide slope 1022c to the second guide slope 1021c, and then flows 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 port to discharge the condensed water. In this way, the condensed water formed on the return air cover 102 is guided and discharged, avoiding the generation of water droplets perceptible to the human ear, and improving the user experience.

[0092] The bottom wall of the storage liner 130 may be formed with a water receiving section located 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 front flow guiding inclined section 133 extending backward and downward at the front side, a horizontal straight section 134 extending horizontally backward from the front flow guiding inclined section 133, and a rear flow guiding inclined section 135 extending backward and upward from the rear end of the horizontal straight section 134. The horizontal straight section 134 is formed with a drain port (not shown). The condensed water formed on the return air cover 102 flows along the front flow guiding inclined section 133 to the horizontal straight section 134 through the guidance of the various inclined sections of the return air frame 1021 and the return air rear cover 1022, and is finally discharged from the drain port. The condensed water on the evaporator 101 flows along the front flow guiding inclined section 133 and the rear flow guiding inclined section 135 to the horizontal straight section 134, and is discharged from the drain port.

[0093] The drain port is connected to a drain pipe (not shown), through which the condensed water is guided to an evaporating dish of the refrigerator 100. The evaporating dish may generally be located in a compressor compartment to evaporate the water in the evaporating dish using the heat of a condenser and / or a compressor arranged in the compressor compartment.

[0094] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A refrigerator that prevents an air supply duct from falling. include: The box body includes a storage liner located at the bottom; A top cover is configured to separate a storage space located above and a cooling space located below; an evaporator, disposed in the cooling space and configured to cool the airflow entering the cooling space to form a cooling airflow; The top cover does not completely cover the upper surface of the evaporator, and a front section of the upper surface of the evaporator is not covered by the top cover.

2. The refrigerator according to claim 1, wherein The section of the upper surface of the evaporator that is not covered by the top cover forms a gap on the upper surface of the evaporator to form an air flow bypass, and at least part of the return air can enter the evaporator from above the evaporator through the air flow bypass.

3. The refrigerator according to claim 2, wherein The facing space between the top cover and the upper surface of the evaporator is filled with wind-shielding foam, and the rear of the airflow bypass is filled with the wind-shielding foam, so that the return air passing through the airflow bypass flows into the evaporator.

4. The refrigerator according to claim 1, further comprising: include: an air supply duct, disposed on the inner side of the rear wall of the storage liner, communicating with the cooling space, and configured to deliver at least part of the cooling airflow into the storage space; The top cover includes a top cover body and a supporting portion protruding upward from the rear end of the top cover body, the front wall surface of the air supply duct is formed with a supporting portion protruding forward, and the top cover and the air supply duct are arranged so that the supporting portion supports the supporting portion to prevent the air supply duct from falling.

5. The refrigerator according to claim 4, wherein The air supply duct includes a duct front cover plate and a duct rear cover plate located at the rear side of the duct front cover plate, the duct front cover plate and the duct rear cover plate define a channel communicating with the cooling space, and the duct front cover plate is formed with the supporting portion; Furthermore, the air duct front cover plate and the air duct rear cover plate are fixed.

6. The refrigerator according to claim 1, further comprising: include: 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 force the cooling air flow into the air supply duct.

7. The refrigerator according to claim 1, further comprising: include: At least one return air cover, disposed at the front end of the top cover, and defining the cooling space together with the top cover and the bottom wall of the storage liner; The return air hood comprises: The return air frame body located at the front side has a first opening formed on the front wall surface and an open rear end; The return air rear cover is assembled with the return air frame.

8. The refrigerator according to claim 7, wherein The return air rear cover separates the first opening into a first front return air inlet located at the top and a second front return air inlet located at the bottom, so as to facilitate the return air of the storage space to flow back into the cooling space through the first front return air inlet and the second front return air inlet.

9. The refrigerator according to claim 8, wherein The return air rear cover defines a first return air duct located behind the first front return air inlet, and a second return air duct located behind the second front return air inlet; The return air entering through the first front return air inlet enters the cooling space through the first return air duct, enters the evaporator from the upper section of the evaporator to exchange heat with the evaporator; the return air entering through the second front return air inlet enters the cooling space through the second return air duct, enters the evaporator from the lower section of the evaporator to exchange heat with the evaporator.

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