A refrigerator

Abstract

The present invention discloses a refrigerator, which relates to the technical field of refrigerators and solves the problems in the prior art of small air volume on both sides of the storage chamber, uneven air volume distribution, and inconsistent cooling speed. The refrigerator comprises: a cabinet, which forms a storage chamber; a door, which is connected to the cabinet and is used to open or close the storage chamber; a fan, an evaporator, and an air duct assembly mounted on the rear panel of the cabinet, which forms an air duct for supplying air to the storage chamber; the air duct comprises: a first air inlet, which is located on the side wall of the air duct assembly opposite to the side panel, and the number of the first air inlets is multiple, and the multiple first air inlets are evenly distributed on the left side wall, right side wall, and upper side wall of the air duct assembly; a second air inlet, which is located on the front side wall of the air duct assembly, and the number of the second air inlets is multiple, and the multiple second air inlets are arranged in an array on the front side wall; and a return air inlet, which is located at the lower part of the storage chamber. The refrigerator of the present invention is used to store food.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator. Background Art

[0002] Refrigerators are common refrigeration and preservation appliances, widely used for storing food and other items. Air-cooled refrigerators are increasingly popular due to their large capacity, frost-free operation, and clean, fresh air. These refrigerators consist of at least an evaporator, a fan, an air duct, and at least one storage compartment. After cooling through the evaporator, air is drawn in by the fan and formed into an airflow. This airflow is then transported through the air duct into the storage compartment, where it exchanges heat with the air and items inside the compartment, lowering the compartment temperature.

[0003] The prior art provides an air-cooled refrigerator comprising a cabinet, a door, and a fan. The cabinet and door enclose a storage compartment, which includes a refrigerator, a freezer, and a temperature-controlled room. Multiple storage compartments share a common evaporator, and the fan is a centrifugal fan. Each storage compartment is equipped with an air duct assembly, which forms an air duct. The air duct includes at least one air inlet located in the middle of the rear sidewall of the cabinet along the width of the storage compartment. If there are multiple air inlets, they are spaced apart vertically, and cold air flows from the air inlet into the storage compartment in a direction from the rear sidewall of the cabinet toward the door.

[0004] However, conventional air-cooled refrigerators suffer from a problem: because the air inlets are located in the middle of the rear sidewall of the storage compartment, the air volume on either side of the inlet is less than that directly in front of it. Furthermore, due to the airflow characteristics of the centrifugal fan, the airflow entering the inlet is deflected toward the sidewalls of the cabinet, resulting in uneven air volume on both sides of the inlet. This results in uneven air volume distribution across the storage compartment, leading to inconsistent cooling rates. Summary of the Invention

[0005] The embodiments of the present invention provide a refrigerator that solves the problems of the prior art refrigerators, such as small air volume on both sides of the storage compartment, uneven air volume distribution in the storage compartment, and inconsistent cooling speed.

[0006] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0007] The embodiment of the present invention provides a refrigerator, comprising: a cabinet, the cabinet comprising a rear panel and side panels, the rear panel and the side panels forming a storage chamber; a door body movably connected to the cabinet, and used to open or close the storage chamber; an evaporator mounted on the rear panel, and used to cool the air flow; a fan mounted on the rear panel, and the fan is arranged close to the evaporator; an air duct assembly mounted on the rear panel, and an air outlet gap is left between the air duct assembly and the side panels, the air duct assembly forming an air duct, and the air duct is used to supply air to the storage chamber; the air duct comprises: a first Air inlet, the first air inlet is located on the side wall of the duct assembly opposite to the side panel, and there are multiple first air inlets, and the multiple first air inlets are evenly distributed on the left side wall, right side wall and upper side wall of the duct assembly; the second air inlet, the second air inlet is located on the front side wall of the duct assembly, and there are multiple second air inlets, and the multiple second air inlets are arranged in an array on the front side wall; the return air inlet, the return air inlet is located at the lower part of the storage room; wherein, the front side wall of the duct assembly refers to the side wall of the duct assembly close to the door body.

[0008] The refrigerator provided in an embodiment of the present invention comprises a rear panel and side panels. The side panels comprise a left panel located on the left side of the storage compartment, a right panel located on the right side of the storage compartment, an upper panel located at the top of the storage compartment, and a lower panel located at the bottom of the storage compartment. An evaporator, a fan, and an air duct assembly are mounted on the rear panel. The evaporator, fan, and air duct assembly work together to exchange heat for the storage compartment. The air duct assembly is laid flat on the rear panel, with an air outlet gap left between the air duct assembly and the side panels of the housing. Since the air duct assembly has a certain thickness, it protrudes a certain height from the rear panel, resulting in side walls of the air duct assembly opposing the side panels. An air duct is formed within the air duct assembly. One end of the air duct is connected to the fan, and the other end is connected to the storage compartment. The air duct is used to supply air to the storage compartment. In the refrigerator of an embodiment of the present invention, the air duct comprises a first air inlet, a second air inlet, and a return air outlet. The first air inlet is set on the side wall of the air duct assembly opposite the side panel. The airflow sent into the storage chamber through the first air inlet blows toward the side panel. Then, a portion of the airflow blows along the side panel toward the door body and forms a vortex near the door body near the side panel. A portion of the airflow bounces off the side panel and flows into the storage chamber at a certain angle, forming a vortex at the rear of the storage chamber near the first air inlet. The airflow sent into the storage chamber from the first air inlet can form two vortices in the storage chamber, and the two vortices are spaced apart along the thickness direction of the refrigerator, thereby strengthening the disturbance of the airflow in the storage chamber and increasing the flow area of ​​the airflow in the storage chamber. There are multiple first air inlets, and the multiple first air inlets are evenly distributed on the left wall, right wall, and upper wall of the air duct assembly. Due to the downward flow of cold air, setting the first air inlet on the upper wall of the air duct assembly can enable the cold airflow to be delivered to the top of the storage chamber. The vortex formed by the airflow delivered into the storage chamber by the first air inlet is located on the side panel of the storage chamber opposite the first air inlet. The first air inlet is provided on both the left and right walls of the air duct assembly, so that vortices can be formed on both sides of the storage chamber, and the airflow distribution on the left and right sides of the storage chamber is uniform. Multiple first air inlets are provided vertically on the left and right walls of the air duct assembly, so that the airflow distribution in the upper and lower parts of the storage chamber is uniform. The second air inlet is located on the front side wall of the air duct assembly, and there are multiple second air inlets, which are arranged in an array on the front side wall. The airflow delivered into the storage chamber by the second air inlet blows toward one side of the door body in a direction perpendicular to the front side wall. The vortex formed by the airflow flowing into the storage chamber by the first air inlet is located near the side panel of the storage chamber. When the width of the storage chamber is relatively wide, the second air inlet can also ensure that sufficient cold airflow is provided in the middle of the storage chamber, so that the storage chamber does not have the problem of large air volume on the two sides and small air volume in the middle. Multiple second air inlets are arranged in an array on the front side wall, so that the airflow sent into the storage compartment by the second air inlets flows evenly into the storage compartment. The return air inlet is arranged at the lower portion of the storage compartment. Based on the movement characteristics of the cold air flow, the cold air in the storage compartment flows to the lower portion of the storage compartment after heat exchange and flows out of the storage compartment through the return air inlet.Compared with the prior art, the refrigerator provided in the embodiment of the present invention, in which the first air inlet and the second air inlet cooperate to make the cold air blow evenly to various positions in the storage room, solves the problems of uneven air volume distribution in the storage room, too small local air volume, and inconsistent cooling speed in different areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of the three-dimensional structure of a refrigerator according to an embodiment of the present invention;

[0010] Figure 2 A front view of the refrigerator storage compartment after opening according to an embodiment of the present invention;

[0011] Figure 3 for Figure 2 Cross-sectional view of AA;

[0012] Figure 4 A front view of a refrigerator storage compartment according to an embodiment of the present invention;

[0013] Figure 5 for Figure 4 Cross-sectional view of the middle BB;

[0014] Figure 6 for Figure 5 A partial enlarged view of point b in the middle;

[0015] Figure 7 Schematic diagram of the exploded structure of the upper air duct assembly of the refrigerator according to an embodiment of the present invention;

[0016] Figure 8 for Figure 2 A local enlarged view of point a in the middle;

[0017] Figure 9 for Figure 7 A partial enlarged view of point c in the middle;

[0018] Figure 10 for Figure 7 The local enlarged view of point d in the middle;

[0019] Figure 11 is a front view of an air duct assembly of a refrigerator according to an embodiment of the present invention;

[0020] Figure 12 Schematic diagram of the exploded structure of the air duct assembly of the refrigerator according to an embodiment of the present invention;

[0021] Figure 13 for Figure 11 Cross-sectional view of CC;

[0022] Figure 14 for Figure 11 Cross-sectional view of the middle DD;

[0023] Figure 15 Schematic diagram of the exploded structure of the downwind duct assembly of the refrigerator according to an embodiment of the present invention;

[0024] Figure 16 Schematic diagram of the installation structure of the lighting assembly of the refrigerator according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] 1- cabinet; 11- rear panel; 12- side panel; 2- door; 3- evaporator; 4- fan; 41- support frame; 5- air duct assembly; 5a- upper air duct assembly; 5b- lower air duct assembly; 51- air duct; 51a- first air duct; 51b- second air duct; 511- first air inlet; 512- second air inlet; 513- return air inlet; 514- third air inlet; 515- air guide section; 52- air duct foam; 521- sealing strip; 53- air duct cover; 531- mounting slot; 54- air duct decorative panel; 541- air vent; 542- light hole; 55- air distribution cavity; 551- air inlet; 6- volute; 7- lighting assembly; 71- lighting component; 72- wires. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] Usually, refer to Figure 1 The refrigerator of this embodiment has a shape that is approximately rectangular. The refrigerator has a cabinet 1 and a door 2. The cabinet 1 encloses a storage chamber, and the door 2 can open or close the storage chamber. The refrigerator of the embodiment of the present invention is a double-door air-cooled refrigerator, and its upper part has a refrigerator chamber and a freezer chamber with double-door arrangements, and its lower part is provided with a variable temperature chamber. Usually, the cabinet and the door are formed by foaming, and both the cabinet and the door have an inner liner close to the storage chamber, an outer shell away from the storage chamber, end covers, and a foaming layer located within the inner liner, the outer shell, and the end covers. Among them, the cabinet includes a rear panel arranged opposite to the door body and a side panel perpendicular to the rear panel, and at least an evaporator, a fan, and an air duct assembly are installed on the rear panel. The evaporator, the fan, and the air duct assembly are used to cool the storage chamber.

[0032] An embodiment of the present invention provides a refrigerator, such as Figure 1 、 Figure 2 and Figure 3 As shown, it includes: a box body 1, which includes a rear panel 11 and a side panel 12, and the rear panel 11 and the side panel 12 enclose a storage chamber; a door body 2, which is movably connected to the box body 1 and is used to open or close the storage chamber; an evaporator 3, which is installed on the rear panel 11 and is used to cool the air flow; a fan 4, which is installed on the rear panel 11 and is set close to the evaporator 3; Figure 4 、 Figure 5 and Figure 6 The refrigerator of the embodiment of the present invention also includes an air duct assembly 5, which is installed on the rear panel 11. An air outlet gap is left between the air duct assembly 5 and the side panel 12. The air duct assembly 5 forms an air duct 51, which is used to supply air to the storage chamber; the air duct 51 includes: a first air inlet 511, the first air inlet 511 is located on the side wall of the air duct assembly 5 opposite to the side panel 12, the number of the first air inlets 511 is multiple, and the multiple first air inlets 511 are evenly distributed on the left wall, right wall and upper side wall of the air duct assembly 5; a second air inlet 512, the second air inlet 512 is located on the front side wall of the air duct assembly, the number of the second air inlet 512 is multiple, and the multiple second air inlets 512 are arranged in an array on the front side wall; a return air inlet 513, the return air inlet 513 is located at the lower part of the storage chamber.

[0033] The refrigerator provided by the embodiment of the present invention is as follows Figure 1 and Figure 5As shown, the box body 1 includes a rear panel 11 and side panels 12, and the side panels 12 include a left panel located on the left side of the storage chamber, a right panel located on the right side of the storage chamber, an upper panel located on the top of the storage chamber, and a lower panel located at the bottom of the storage chamber. Figure 3 As shown, the rear panel 11 is equipped with an evaporator 3, a fan 4 and an air duct assembly 5, which work together to exchange heat for the storage room. Figure 5 and Figure 6 As shown, the air duct assembly 5 is laid flat on the rear panel 11, and an air outlet gap is left between the air duct assembly 5 and the side panel 12 of the box body 1. Since the air duct assembly 5 has a certain thickness, the air duct assembly 5 will protrude a certain height from the rear panel 11, so that the air duct assembly 5 has a side wall opposite to the side panel 12. An air duct 51 is formed in the air duct assembly 5, and the air duct 51 is used to supply air to the storage chamber. One end of the air duct 51 is connected to the fan 4, and the other end is connected to the storage chamber. In the refrigerator of the embodiment of the present invention, the air duct 51 includes a first air inlet 511, a second air inlet 512 and a return air outlet 513. Figure 5 、 Figure 7 and Figure 10The first air inlet 511 is set on the side wall of the air duct assembly 5 opposite to the side panel 12. The airflow sent into the storage chamber through the first air inlet 511 blows toward the side panel 12. Then, part of the airflow blows along the side panel 12 toward the door body 2 and forms a vortex near the door body 2 near the side panel 12; part of the airflow rebounds after passing through the side panel 12 and blows into the storage chamber at a certain angle, and forms a vortex at the rear of the storage chamber near the first air inlet 511. The airflow sent into the storage chamber from the first air inlet 511 can form two vortices in the storage chamber, and the two vortices are spaced apart along the thickness direction of the refrigerator, thereby strengthening the disturbance of the airflow in the storage chamber and increasing the flow area of ​​the airflow in the storage chamber. There are multiple first air inlets 511, and the multiple first air inlets 511 are evenly distributed on the left wall, right wall and upper side wall of the air duct assembly 5. Due to the downward flow of cold air, a first air inlet 511 is provided on the upper side wall of the air duct assembly 5 so that the cold air can be blown to the top of the storage chamber. The vortex formed by the airflow sent into the storage chamber by the first air inlet 511 is located on the side of the side panel 12 close to the storage chamber. First air inlets 511 are provided on both the left and right walls of the air duct assembly 5 so that vortices can be formed on both sides of the storage chamber, so that the airflow on the left and right sides of the storage chamber is evenly distributed. Multiple first air inlets 511 are provided in the vertical direction on the left and right walls of the air duct assembly 5 so that the airflow in the upper and lower parts of the storage chamber is evenly distributed. The second air inlet 512 is located on the front side wall of the air duct assembly 5, and the number of the second air inlets 512 is multiple, and the multiple second air inlets 512 are arranged in an array on the front side wall of the air duct assembly. The airflow from the second air inlet 512 is directed perpendicularly to the front sidewall toward one side of the door body 2. The vortex formed by the airflow delivered into the storage compartment by the first air inlet 511 is located on the side of the storage compartment near the side panel. When the storage compartment is wide, the airflow delivered by the second air inlet 512 ensures sufficient airflow in the center of the storage compartment, preventing the problem of high airflow on the sides and low airflow in the center. Multiple second air inlets 512 are arranged in an array on the front sidewall to ensure that the airflow delivered by the second air inlets 512 flows evenly throughout the storage compartment. The return air inlet 513 is located at the lower portion of the storage compartment. Based on the motion characteristics of the cold airflow, the cold air in the storage compartment flows toward the lower portion of the storage compartment after heat exchange and then exits the storage compartment through the return air inlet 513. Optionally, in some embodiments, the first air inlet 511 on the left and right walls of the air duct assembly 5 are symmetrically arranged to achieve more uniform airflow distribution on the same horizontal plane within the storage compartment. Compared with the prior art, the refrigerator provided in the embodiment of the present invention, the first air inlet 511 and the second air inlet 512 cooperate to evenly deliver cold air to various positions in the storage room, solving the problems of uneven air volume distribution in the storage room, too little local air volume, and inconsistent cooling speed in different areas.

[0034] In the prior art, the air inlet is usually set in the middle position of the rear side wall of the storage chamber. According to the characteristics of the centrifugal fan, the air flow entering the storage chamber from the air inlet will blow toward the inner wall of the door body near the door handle. The thickness of the thermal insulation material layer at the door handle is relatively thin, resulting in a lower temperature at the door handle on the outer wall of the door body. In the summer, especially at the door handle of the freezer, due to its low temperature and large temperature difference with the indoor temperature, condensation will form on the door handle. In the refrigerator of the embodiment of the present invention, the air flow sent into the storage chamber by the first air inlet 511 and the second air inlet 512 will not blow directly toward the door handle, which can effectively prevent condensation from forming on the door handle, thereby improving the user experience.

[0035] Reference Figure 5 and Figure 6 In the refrigerator of this embodiment of the present invention, an air guide section 515 is provided at the first air inlet 511. The air guide section 515 extends at a predetermined angle to the rear panel 11, and the end of the air guide section 515 closest to the first air inlet 511 is tilted toward the door 2. This allows the airflow entering the storage compartment from the first air inlet 511 to be smoothly conveyed into the storage compartment through the air outlet gap between the air duct assembly 5 and the side panel 12. Furthermore, the airflow entering the storage compartment from the first air inlet 511, upon contact with the side panel 12, has a portion flow along the side panel 12 toward the door 2, while the other portion enters the storage compartment away from the rear panel, thereby forming two vortices within the storage compartment. The airflow flowing along the side panel 12 toward the door 2 forms a vortex near the door 2 near the side panel 12, while the airflow entering the storage compartment away from the rear panel 11 forms a cyclone at the rear of the storage compartment near the first air inlet 511. The air outlet direction of the first air inlet 511 refers to the flow direction of the airflow sent into the storage chamber from the first air inlet 511.

[0036] In some embodiments, as Figure 4 As shown, along the width direction of the refrigerator, multiple second air inlets 512 are arranged in multiple rows at intervals; along the height direction of the refrigerator, multiple second air inlets 512 are arranged in each row at intervals. Figure 4 As shown, there are six second air inlets 512 , which are arranged in two rows on the front sidewall of the air duct assembly 5 . Each row includes three second air inlets 512 , and the three second air inlets 512 are spaced apart in the vertical direction. The number and distribution of the second air inlets 512 can be flexibly set according to the volume of the storage compartment.

[0037] The refrigerator according to the embodiment of the present invention is as follows: Figure 3 and Figure 7As shown, the air duct assembly 5 includes an air duct foam 52, an air duct cover 53, and an air duct decorative plate 54. The air duct foam 52, the air duct cover 53, and the air duct decorative plate 54 are stacked along the thickness direction of the rear plate; and the air duct foam 52 is connected and fixed to the rear plate 11, and the air duct decorative plate 54 is arranged opposite to the door body 2. In some embodiments, as Figure 2 、 Figure 8 and Figure 9 As shown, each second air inlet 512 is composed of multiple vents 541 formed on the duct decorative plate 54. An air distribution cavity 55 is provided between the duct cover 53 and the duct decorative plate 54. The duct cover 53 is provided with an air inlet 551 that communicates with the air distribution cavity 55. The air inlet 551 communicates with the air duct 51, and the vents 541 communicate with the air distribution cavity 55. Cool air after heat exchange in the evaporator 3 is drawn into the air duct 51 by the fan 4, then enters the air distribution cavity 55 through the air inlet 551, and is then delivered into the storage compartment through the vents 541. Traditionally, the air inlet is a large rectangular opening. In the refrigerator of this embodiment of the present invention, the second air inlet 512 is configured to be composed of multiple vents 541. When the air flow rate of the fan 4 is constant, the air flow rate of the second air inlet 512 can be reduced, while the air flow rate of the first air inlet 511 can be increased. This increases the size of the vortex formed within the storage chamber, strengthens the disturbance of the airflow within the storage chamber, and ensures a more uniform airflow within the storage chamber. Furthermore, the small-hole shape of the second air inlet 512 enhances the aesthetics of the front sidewall of the air duct assembly 5. Alternatively, the vents 541 can be circular or polygonal.

[0038] It should be noted that the air duct assembly 5 also includes an annular sealing strip 521 arranged along the circumference of the air duct foam 52. Optionally, the annular sealing strip 521 is made of sponge, and the annular sealing strip 521 is adhered to the air duct foam 52 by bonding.

[0039] In some embodiments, as Figure 2 and Figure 3As shown, to facilitate the storage of items in the storage room, partitions and drawers are usually provided in the storage room along the height direction of the refrigerator, and the partitions are located above the drawers. There are no baffles on the four sides of the storage space formed by the partitions in the storage room in the horizontal direction, so the airflow sent into the storage room by the first air inlet 511 and the second air inlet 512 can directly contact the items on the partitions. The drawers are all equipped with baffles, and there is also a partition above the drawers. The airflow sent into the storage room by the first air inlet 511 and the second air inlet 512 cannot directly enter the drawers. Therefore, in the refrigerator of the embodiment of the present invention, in order to allow sufficient air volume to enter the drawers, the air duct 51 also includes a third air inlet 514. The third air inlet 514 is located in the area of ​​the front side wall corresponding to the drawers. The third air inlet 514 is used to supply air into the drawers. In the refrigerator provided by the embodiment of the present invention, the first air inlet 511 and the second air inlet 512 are used to supply air to the storage space corresponding to the partition of the storage room, and the third air inlet 514 is used to directly supply air to the drawer, so that cold air can also be directly introduced into the drawer, and the problem of local air supply being too small will not occur, so that the air volume in each area of ​​the storage room is uniform, and the cooling speed of each area of ​​the storage room is the same or similar.

[0040] In some embodiments, as Figure 7 As shown, the refrigerator further includes a volute 6, and the fan 4 is arranged in the volute 6. Figure 11 ,and Figure 12 As shown, the air duct assembly 5 is divided into an upper air duct assembly 5a and a lower air duct assembly 5b; Figure 13 and Figure 14 The air duct 51 includes a first air duct 51a formed within the upper air duct assembly 5a and a second air duct 51b formed within the lower air duct assembly 5b. The first air duct 51a connects the volute 6 with the first air inlet 511 and the second air inlet 512, while the second air duct 51b connects the volute 6 with the third air inlet 514. A portion of the cold air generated by the fan 4 enters the first air duct 51a and is delivered through the first and second air inlets 511 and 512 to the storage areas corresponding to the storage compartment partitions. The remaining portion of the cold air flows through the second air duct 51b and the third air inlet 514 to the storage areas corresponding to the drawers.

[0041] In some embodiments, reference Figure 14 and Figure 15 The air duct assembly 5 further includes a heat insulating cotton 56 covering the side of the evaporator 3 close to the door body 2, a front cover 57 located on the side opposite to the heat insulating cotton 56 and the evaporator 3, and an air guide structure 58 between the volute 6 and the front cover 57; wherein the third air inlet 514 is located on the front cover 57, and the air guide structure 58 forms a second air duct 51b, one end of the second air duct 51b is connected to the volute 6, and the other end is connected to the third air inlet 514. Optionally, refer to Figure 12The evaporator 3 and the fan 4 are both arranged below the rear panel 11, and the fan 4 is located above the evaporator 3. The air duct foam 52, the air duct cover 53 and the air duct decorative plate 54 constitute the upper air duct assembly 5a, which is located above the fan 4. The heat insulation cotton 56, the front cover 57 and the air guide structure 58 constitute the lower air duct assembly 5b, which covers the fan 4 and the evaporator 3 on the side close to the door body 2. In some embodiments, as Figure 15 As shown, a sealing strip is provided at the position where the air guide structure 58 contacts the front cover plate 57 . Optionally, the sealing strip is made of sponge.

[0042] It should be noted that, usually, reference Figure 13 and Figure 14 The evaporator 3 and the fan 4 are both arranged below the rear plate 11, and the fan 4 is located above the evaporator 3. A fan support frame 41 is provided on the side of the fan 4 close to the rear plate 11, and the fan 4 is fixed to the volute 6 by the fan support frame 41. Optionally, the fan is arranged close to the evaporator 3. In the embodiment of the present invention, the fan is located 30 to 40 mm above the evaporator. The fan 4 is very close to the evaporator 3, and can quickly pass the air cooled by the evaporator 3 from the air guide ring along the axial direction of the fan into the interior of the fan 4. The fan 4 is a centrifugal fan. Then, the air is thrown out along the radial direction of the fan 4 and enters the first air duct 51a and the second air duct 51b from the volute 6, and then is sent into the storage room through the first air inlet 511, the second air inlet 512 and the third air inlet 514.

[0043] In some embodiments, as Figure 2 As shown, the storage chamber includes a refrigerator and a freezer located at the upper part of the refrigerator, and a variable temperature chamber located at the lower part of the refrigerator; wherein, the refrigerator and the freezer are provided with double doors. Compared with the prior art, the refrigerator and the freezer share an evaporator and a fan, and the air ducts of the freezer and the refrigerator are interconnected, which makes it easy for the refrigerator and the freezer to have odors that cross-contaminate each other. In the refrigerator of the embodiment of the present invention, the refrigerator and the freezer are respectively provided with an evaporator 3 and a fan 4; the air duct assembly 5 includes a refrigerator air duct assembly and a freezer air duct assembly, and the refrigerator air duct assembly and the freezer air duct assembly operate independently, so that the air duct formed by the refrigerator air duct assembly and the air duct formed by the freezer air duct assembly are not interconnected, and there is no odor between the refrigerator and the freezer. Moreover, the refrigerator and the freezer respectively use two relatively independent air duct assemblies 5 for air supply, and the air volume is large, which can improve the refrigeration efficiency of the refrigerator.

[0044] Reference Figure 3 and Figure 7The air duct assembly 5 includes an air duct foam 52, an air duct cover plate 53 and an air duct decorative plate 54. The air duct foam 52, the air duct cover plate 53 and the air duct decorative plate 54 are stacked along the thickness direction of the rear plate; and the air duct foam 52 is connected and fixed to the rear plate 11, and the air duct decorative plate 54 is arranged opposite to the door body 2. Figure 16 As shown, the lighting assembly 7 is also included. The lighting assembly 7 includes: a lighting component 71, which is fixed between the air duct decorative plate 54 and the air duct cover plate 53; and a wire 72 for electrically connecting the lighting component 71 to a power source. A mounting groove 531 is provided on the air duct cover plate 53 at a position corresponding to the lighting component 71. The lighting component 71 is located in the mounting groove 531 and is fixedly connected to the mounting groove 531. A wire groove is provided on the air duct cover plate 53 at a position corresponding to the wire 72. The wire 72 is located in the wire groove. A light hole 542 is provided on the air duct decorative plate 54 at a position corresponding to the lighting component 71. The light hole 542 is composed of a plurality of small holes opened on the air duct decorative plate 54. Generally, in the prior art, the lighting lamp is usually mounted on the inner wall of the box body by clipping, and a lampshade is provided on the outside of the lighting lamp. In this embodiment of the present invention, the lighting component 71 is installed between the duct decorative plate 54 and the duct cover plate 53. A light hole 542, consisting of multiple small holes, is provided on the duct decorative plate 54 at a position corresponding to the lighting component 71. This allows the duct decorative plate 54 to function as a lampshade in conventional technology, thereby reducing the number of parts and costs. Furthermore, installing the lighting component 71 between the duct decorative plate 54 and the duct cover plate 53 reduces the space occupied by the lighting component 71 in the storage compartment. Because the light hole 542 consists of multiple small holes, the light generated by the lighting component 71 is softer and less glaring when it enters the storage compartment through the light hole 542.

[0045] It should be noted that, in some embodiments, the wire 72 may also be arranged between the air duct foam 52 and the air duct cover 53 , and the wire groove may be set on the side of the air duct foam 52 close to the air duct cover 53 .

[0046] In the embodiment of the present invention, the number of the lighting components 71 is multiple, and the multiple lighting components 71 are arranged in an array on the front side wall of the air duct assembly 5. Optionally, Figure 16 As shown, similar to the second air inlet 512, the embodiment of the present invention has six lighting components 71. These six lighting components 71 are arranged in two rows along the width of the refrigerator on the front side wall, with each row having three lighting components 71 spaced apart along the vertical direction of the refrigerator. The multiple arrays of lighting components 71 arranged on the front side wall prevent items in the storage compartment from affecting the illumination of the storage compartment through the light holes 542.

[0047] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0048] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A refrigerator comprising: A box body, the box body comprising a rear panel and side panels, the rear panel and the side panels forming a storage chamber; A door body, movably connected to the box body, for opening or closing the storage chamber; an evaporator, mounted on the rear plate, for cooling the airflow; a fan, mounted on the rear plate; The invention is characterized in that it further comprises an air duct assembly mounted on the rear panel, with an air outlet gap left between the air duct assembly and the side panel, the air duct assembly forming an air duct for supplying air to the storage compartment; the air duct comprises: a first air inlet, the first air inlet being located on a side wall of the air duct assembly opposite to the side panel, and the first air inlet being in a plurality, and the plurality of first air inlets being evenly distributed on a left side wall, a right side wall, and an upper side wall of the air duct assembly; a second air inlet, the second air inlet being located on the front side wall of the air duct assembly, the second air inlet being provided in a plurality and being arranged in an array on the front side wall; wherein the front side wall is the side wall of the air duct assembly close to the door body; an air return port, the air return port being located at the lower portion of the storage chamber; Along the width direction of the refrigerator, a plurality of the second air inlets are spaced apart and arranged into a plurality of rows; along the height direction of the refrigerator, a plurality of the second air inlets are spaced apart and arranged in each row; An air guide section is provided at the first air inlet. The extension direction of the air guide section forms a certain angle with the rear plate, and one end of the air guide section close to the side plate is inclined toward the door body.

2. The refrigerator according to claim 1, wherein: The air duct assembly includes an air duct foam, an air duct cover plate and an air duct decorative plate, wherein the air duct foam, the air duct cover plate and the air duct decorative plate are stacked along the thickness direction of the rear plate; Each of the second air inlets is composed of a plurality of air vents opened on the air duct decorative plate; an air distribution cavity is provided between the air duct cover plate and the air duct decorative plate, and an air inlet connected to the air distribution cavity is provided on the air duct cover plate, the air inlet is connected to the air duct, and the air vents are connected to the air distribution cavity.

3. The refrigerator according to any one of claims 1-2, characterized in that The storage room is provided with a partition and a drawer, and the first air inlet and the second air inlet are both located in the area corresponding to the air duct assembly and the partition; the air duct also includes a third air inlet, and the third air inlet is located in the area corresponding to the front side wall and the drawer, and the third air inlet is used to supply air into the drawer.

4. The refrigerator according to claim 3, characterized in that The refrigerator also includes a volute, and the fan is arranged in the volute; the air duct includes a first air duct and a second air duct, the first air duct is used to connect the volute with the first air inlet and the volute with the second air inlet, and the second air duct is used to connect the volute with the third air inlet.

5. The refrigerator according to claim 4, characterized in that The air duct assembly also includes Thermal insulation cotton, covering the evaporator and the volute on a side close to the door body; A front cover plate is located on a side of the heat insulation cotton opposite to the evaporator, and the third air inlet is located on the front cover plate; An air guide structure is located between the volute and the front cover plate, and the air guide structure forms the second air duct, one end of the second air duct is connected to the volute, and the other end is connected to the third air inlet.

6. The refrigerator according to claim 1, wherein: The storage compartment includes a refrigerating compartment and a freezing compartment located at the upper part of the refrigerator, and a temperature-changing room located at the lower part of the refrigerator; wherein the refrigerating compartment and the freezing compartment are provided with opposite doors; An evaporator and a fan are provided in the refrigerating chamber, and an evaporator and a fan are provided in the freezing chamber; the air duct assembly includes a refrigerating chamber air duct assembly and a freezing chamber air duct assembly, and the refrigerating chamber air duct assembly and the freezing chamber air duct assembly operate independently.

7. The refrigerator according to claim 1, wherein The air duct assembly includes an air duct foam, an air duct cover plate, and an air duct decorative plate, wherein the air duct foam, the air duct cover plate, and the air duct decorative plate are stacked along the thickness direction of the rear plate; the refrigerator also includes a lighting assembly, which includes: A lighting component is fixed between the air duct decorative plate and the air duct cover plate; a wire for electrically connecting the lighting component to a power source; In which, a mounting groove is provided on the air duct cover at a position corresponding to the lighting component, the lighting component is located in the mounting groove and fixedly connected to the mounting groove; a wire groove is provided on the air duct cover at a position corresponding to the wire, the wire is located in the wire groove; a light hole is provided on the air duct decorative plate at a position corresponding to the lighting component, and the light hole is composed of a plurality of small holes opened on the air duct decorative plate.

8. The refrigerator according to claim 7, characterized in that There are multiple lighting components, and the multiple lighting components are arranged in an array on the front side wall.

Images