Refrigerator

Abstract

The embodiment of the invention relates to the technical field of refrigeration equipment, in particular to a refrigerator. According to the refrigerator, the refrigerating chamber and the refrigerating evaporator chamber are arranged in the refrigerator body, and the refrigerating evaporator is arranged in the refrigerating evaporator chamber and used for refrigerating the refrigerating chamber. And an air supply volute is arranged, and a centrifugal fan is installed. The air supply volute is arranged on the side, in the width direction of the box body, of the refrigeration evaporator chamber, so that the centrifugal fan is located on one side of the refrigeration evaporator. An area A formed by projection of the air supply volute and an area B formed by projection of the refrigeration evaporator chamber at least partially coincide, so that the air supply volute utilizes at least part of space of the side face of the refrigeration evaporator chamber, the space, additionally occupied by the air supply volute and the centrifugal fan, in the depth direction of the refrigerator is reduced, and the compactness of the internal structure of the refrigerator is improved; and the effective volume of the refrigerator can be increased.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of refrigeration equipment, and in particular to a refrigerator. Background Art

[0002] A refrigerator is one of the indispensable household appliances in people's home life. With the improvement of people's living standards, the requirements for refrigerator products are getting higher and higher, especially for the occupied space and usable volume of the refrigerator.

[0003] In the related art, the evaporator is usually arranged at the rear side of the storage compartment, and a blower is arranged at the top of the evaporator so that the cold air passing through the evaporator enters the storage compartment under the action of the blower.

[0004] However, there are intervals between the left and right sides of the evaporator and the side walls of the box liner. This part of the interval is not effectively utilized and becomes an ineffective space, affecting the effective volume of the refrigerator. Summary of the Invention

[0005] The embodiments of the present application provide a refrigerator, which can improve the effective volume of the refrigerator.

[0006] In a first aspect, the embodiments of the present application provide a refrigerator, which includes:

[0007] A box body, in which a refrigerating compartment and a refrigerating evaporator chamber are arranged. The refrigerating evaporator chamber is located at the rear lower part of the refrigerating compartment, and a refrigerating evaporator is arranged in the refrigerating evaporator chamber; a air supply duct for the cold air in the refrigerating evaporator chamber to flow into the refrigerating compartment is provided between the refrigerating evaporator chamber and the refrigerating compartment;

[0008] An air supply volute, located at the rear lower part of the refrigerating compartment, in which a centrifugal blower is arranged. The extension line of the motor shaft of the centrifugal blower intersects with the rear wall of the box body; the air inlet of the air supply volute is communicated with the refrigerating evaporator chamber, and the air outlet of the air supply volute is communicated with the air supply duct;

[0009] The air supply volute is located on one side of the refrigerating evaporator chamber along the width direction of the box body, and the projection of the air supply volute on the side wall of the box body is area A, and the projection of the refrigerating evaporator chamber on the side wall of the box body is area B, and at least part of area A and area B overlap.

[0010] In the refrigerator according to the embodiment of the present application, a refrigerating compartment and a refrigerating evaporator chamber are provided inside the cabinet. A refrigerating evaporator is provided in the refrigerating evaporator chamber to refrigerate the refrigerating compartment. By providing a blower volute and installing a centrifugal fan, and arranging the blower volute on one side of the refrigerating evaporator chamber along the width direction of the cabinet, the centrifugal fan is located on one side of the refrigerating evaporator. Moreover, at least part of the area A formed by the projection of the blower volute coincides with at least part of the area B formed by the projection of the refrigerating evaporator chamber, so that the blower volute utilizes at least part of the space on the side of the refrigerating evaporator chamber, reducing the space occupied by the blower volute and the centrifugal fan in the depth direction of the refrigerator, improving the compactness of the internal structure of the refrigerator, and helping to increase the effective volume of the refrigerator.

[0011] In some embodiments of the present application, the projections of the blower volute and the refrigerating evaporator chamber on the rear wall of the cabinet are arranged side by side along the width direction of the cabinet.

[0012] With such an arrangement, the blower volute can occupy as much space on the side of the refrigerating evaporator chamber as possible, reducing the ineffective space on the side of the refrigerating evaporator chamber and increasing the effective volume of the refrigerator.

[0013] In some embodiments of the present application, along the height direction of the cabinet, the air inlet of the blower volute is located above the refrigerating evaporator, and the bottom end of the air inlet of the blower volute is not lower than the top end of the refrigerating evaporator.

[0014] With such an arrangement, the air flowing back from the refrigerating air return port can enter the air inlet of the blower volute after fully exchanging heat with the refrigerating evaporator.

[0015] In some embodiments of the present application, the blower volute includes an annular connecting portion, and the connecting portion abuts against the rear wall of the refrigerating compartment;

[0016] A notch is provided on the connecting portion to form the air inlet of the blower volute;

[0017] The air outlet of the blower volute is located on the side of the air inlet of the blower volute away from the refrigerating evaporator chamber.

[0018] In the blower volute according to the embodiment of the present application, by providing an annular connecting portion to abut against the rear wall of the refrigerating compartment, the blower volute is in sealing contact with the rear wall; moreover, a notch is provided on the connecting portion to form the air inlet of the blower volute, so that cold air enters the interior of the blower volute through the air inlet of the blower volute, preventing the cold air from escaping to the outside of the blower volute.

[0019] In some embodiments of the present application, a diversion air duct is provided between the air inlet of the air supply volute and the air outlet of the refrigerating evaporator chamber, so that the air outlet of the refrigerating evaporator chamber blows air towards the air inlet of the air supply volute; the diversion air duct is located above the refrigerating evaporator chamber.

[0020] The diversion air duct plays a role in restricting and guiding the cold air, so that the cold air can smoothly flow from the air outlet of the refrigerating evaporator chamber to the air inlet of the air supply volute, reducing the flow resistance of the cold air.

[0021] In some embodiments of the present application, the diversion air duct includes:

[0022] A first air duct wall, located above the refrigerating evaporator chamber; the first air duct wall extends upward and obliquely from the air outlet of the refrigerating evaporator chamber towards the air inlet of the air supply volute; the top end of the first air duct wall is higher than the top end of the air inlet of the air supply volute;

[0023] A second air duct wall, respectively connected to the top end of the first air duct wall and the top end of the air inlet of the air supply volute.

[0024] In the embodiments of the present application, by providing an inclined first air duct wall and an inclined second air duct wall, the diversion air duct restricts and guides the cold air blown out from the air outlet of the refrigerating evaporator chamber, so that it smoothly enters the air inlet of the air supply volute, which helps to reduce the wind resistance.

[0025] In some embodiments of the present application, the air supply air duct has a first side and a second side that are opposite and spaced apart along the width direction of the box body. The air supply volute is close to the first side of the air supply air duct, and the refrigerating evaporator chamber is close to the second side of the air supply air duct;

[0026] The air supply air duct includes: a first air duct section, a second air duct section, and a third air duct section;

[0027] One end of the first air duct section is communicated with the air outlet of the air supply volute, and the first air duct section extends upward and obliquely towards the second side of the air supply air duct;

[0028] Both the second air duct section and the third air duct section are communicated with the first air duct section, and the second air duct section and the third air duct section extend towards the first side and the second side of the air supply air duct respectively, and both the second air duct section and the third air duct section are communicated with the refrigerating compartment.

[0029] The air supply duct in the embodiment of the present application extends obliquely upward by setting a first air duct section, so as to guide the cold air from the air outlet of the air supply volute at the edge toward the middle of the left and right directions of the air supply duct, and by setting a second air duct section and a third air duct section, air is discharged on the left and right sides of the cold storage compartment, which helps to improve the uniformity of blowing air toward the cold storage compartment, thereby improving the uniformity of the refrigeration temperature inside the cold storage compartment.

[0030] In some embodiments of the present application, an electrical connection chamber is provided on a side of the air supply volute away from the refrigerated evaporator chamber, and the electrical connection chamber is configured to provide an electrical connection space for at least the centrifugal fan;

[0031] The sum of the widths of the electrical connection chamber, the air supply volute, and the refrigeration evaporator chamber along the width direction of the box body is a first width;

[0032] The air supply duct has a second width along the width direction of the box body, and the second width is smaller than the first width.

[0033] The embodiment of the present application provides an electrical connection room on the side of the air supply volute away from the refrigeration evaporator chamber to provide electrical connection space for the centrifugal fan, the detection device on the refrigeration evaporator, the defrost heater, etc., which is not only convenient for maintenance, but also simple in structure and does not occupy the space of the first air duct component. The width of the air supply duct in the embodiment of the present application is small, so that there is a large gap between the left and right sides of the air supply duct and the left and right side walls of the refrigeration compartment, which is convenient for setting the air outlet of the air supply duct.

[0034] In some embodiments of the present application, a freezing chamber and a freezing evaporator chamber are further provided in the box body, and the freezing evaporator chamber is located behind the freezing chamber; a freezing evaporator is provided in the freezing evaporator chamber, and a freezing air duct is provided between the freezing evaporator chamber and the freezing chamber for cold air in the freezing evaporator chamber to flow into the freezing chamber;

[0035] A refrigeration fan is installed in the refrigeration air duct, and the refrigeration fan is located above the refrigeration evaporator chamber.

[0036] In the embodiment of the present application, the evaporators of the freezing compartment and the refrigerating compartment operate independently to avoid heat exchange between them, thereby making the temperature control more stable.

[0037] In a second aspect, an embodiment of the present application provides a refrigerator, comprising:

[0038] A box body; a refrigeration compartment is arranged in the box body;

[0039] An air supply volute and a refrigeration evaporator chamber are arranged at the rear of the lower part of the refrigeration compartment; a refrigeration evaporator is arranged in the refrigeration evaporator chamber;

[0040] The air supply volute is provided with a centrifugal fan, and the extension line of the motor shaft of the centrifugal fan is perpendicular to the rear wall of the box body;

[0041] The air outlet of the air supply volute is communicated with the air supply duct at the rear wall of the refrigerating compartment, and the air outlet of the air supply duct is used for supplying air to the refrigerating compartment;

[0042] The air inlet of the air supply volute is communicated with the air outlet of the refrigerating evaporator chamber, and is used for sucking air from the refrigerating evaporator chamber when the centrifugal fan rotates;

[0043] The refrigerating evaporator chamber is also communicated with the refrigerating compartment through a refrigerating return air duct;

[0044] The air supply volute and the refrigerating evaporator chamber are arranged side by side in the width direction of the box body;

[0045] The air supply volute and the refrigerating evaporator chamber are generally located at the same horizontal height of the box body.

[0046] In the refrigerator according to the embodiment of the present application, a refrigerating compartment and a refrigerating evaporator chamber are provided in the box body. A refrigerating evaporator is provided in the refrigerating evaporator chamber to refrigerate the refrigerating compartment. By providing an air supply volute and installing a centrifugal fan. Since the air supply volute and the refrigerating evaporator chamber are arranged side by side in the width direction of the box body, and the air supply volute and the refrigerating evaporator chamber are generally located at the same horizontal height of the box body, the structure of the air supply volute and the refrigerating evaporator chamber along the height direction of the box body is as compact as possible, reducing the installation occupation space of the two in the height direction; enabling the air supply volute to utilize at least part of the space on the side of the refrigerating evaporator chamber, which helps to improve the effective volume of the refrigerator. Description of the Drawings

[0047] In order to more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0048] Figure 1 The front view of the refrigerator provided by some embodiments of the present application;

[0049] Figure 2 For Figure 1 The A-A cross-sectional view in

[0050] Figure 3 The exploded view of the refrigerator provided by some embodiments of the present application;

[0051] Figure 4 The rear view of the box body provided by some embodiments of the present application;

[0052] Figure 5 is Figure 4 the sectional view taken along line B-B in

[0053] Figure 6 is Figure 5 the enlarged schematic view of region P in

[0054] Figure 7 the rear view of the centrifugal fan, the first air duct assembly, the air supply volute, and the refrigeration evaporator provided by some embodiments of the present application;

[0055] Figure 8 the rear view of the air supply volute and the centrifugal fan provided by some embodiments of the present application;

[0056] Figure 9 is Figure 8 the sectional view taken along line C-C in

[0057] Figure 10 the side view of the air supply volute and the centrifugal fan provided by some embodiments of the present application;

[0058] Figure 11 is Figure 10 the sectional view taken along line D-D in

[0059] Figure 12 is Figure 4 the sectional view taken along line E-E in

[0060] Figure 13 is Figure 12 the enlarged schematic view of region Q in

[0061] Figure 14 is Figure 4 the sectional view taken along line F-F in

[0062] Figure 15 is Figure 14 the enlarged schematic view of region R in

[0063] Figure 16 is Figure 7 the exploded view of the structure in

[0064] Figure 17 the wind field simulation diagram in the cold storage room interior in some embodiments of the present application.

[0065] Explanation of reference numerals:

[0066] 100: Cabinet; 110: Refrigerated compartment; 111: Rear wall; 120: Refrigerated evaporator chamber; 121: Refrigerated evaporator; 122: Air outlet of the refrigerated evaporator chamber; 123: Refrigerated air return opening; 130: Air supply duct; 131: Air outlet of the air supply duct; 132: First duct section; 133: Second duct section; 134: Third duct section; 140: Frozen compartment; 150: Frozen evaporator chamber; 151: Frozen evaporator; 152: Frozen air return opening; 160: Frozen air duct; 161: Frozen air supply opening; 170: Second duct assembly; 180: Frozen fan;

[0067] 200: First duct assembly; 210: First duct plate; 211: First sealing strip; 212: Second sealing strip; 220: First cover plate; 230: First part; 240: Second part; 250: Inclined part; 260: Diversion air duct; 261: First duct wall; 262: Second duct wall;

[0068] 300: Centrifugal fan;

[0069] 400: Air supply volute; 410: Air inlet of the air supply volute; 420: Air outlet of the air supply volute; 430: Volute part; 431: Communication port; 440: Connection part; 441: Connection plate part; 442: Contact plate part; 450: Installation part;

[0070] 500: Electrical connection chamber. Detailed implementation manners

[0071] To make the objectives, implementation manners and advantages of this application clearer, the following will clearly and completely describe the exemplary implementation manners of this application with reference to the accompanying drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only a part rather than all of the embodiments of this application.

[0072] It should be noted that the brief description of the terms in this application is only for facilitating the understanding of the subsequent described implementation manners, rather than intending to limit the implementation manners of this application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings.

[0073] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclusively include. For example, a product or device including a series of components does not necessarily have to be limited to those components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0074] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 should not be construed as a limitation of the present application.

[0075] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0076] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0077] The volume ratio of a refrigerator refers to the ratio between the effective internal volume and the external volume of the refrigerator, usually expressed as a percentage. The effective volume of the refrigerator refers to the space capacity actually available for storing food inside the refrigerator, which directly affects how much food the user can store. People's requirements for the volume ratio and effective volume of refrigerators are getting higher and higher.

[0078] As a heat exchange component for reducing the air temperature, the evaporator is installed at the rear side inside the liner, and through the air supply duct formed by the duct assembly, a blower is installed in the air supply duct to drive the cold air passing through the evaporator to enter the storage compartment of the refrigerator through the air supply duct.

[0079] The R & D personnel of the present application have found through research that there are intervals between the left and right sides of the evaporator and the side walls of the liner, and this part of the interval is not effectively utilized and becomes an ineffective space, affecting the effective volume of the refrigerator. In particular, when the evaporator is arranged in the refrigerating liner, since the refrigerating temperature is above zero degree, the volume of the evaporator is relatively small, resulting in intervals between the left and right sides of the evaporator and the side walls of the refrigerating liner, and this part of the interval is not fully utilized, thus affecting the volume ratio of the refrigerator.

[0080] The R & D personnel of this application continued to study how to utilize the space on the side of the evaporator. Among them, the blower is located above the evaporator, and cold air can enter the compartment from top to bottom. However, the blower occupies space in the depth direction of the refrigerator, which is not conducive to improving the volume ratio of the refrigerator.

[0081] Therefore, the embodiment of this application provides a refrigerator, in which the blower is arranged on the side of the evaporator along the width direction of the refrigerator, utilizing the space on the side of the evaporator, saving the depth space of the original blower arrangement position, increasing the storage space of the compartment, and helping to improve the effective volume of the refrigerator.

[0082] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0083] Combined Figure 1 and Figure 2 , some embodiments of this application provide a refrigerator, which includes a cabinet 100. The cabinet 100 can be constructed to form a storage compartment with an access opening for storing items.

[0084] Multiple storage compartments can be provided to expand the storage space. According to the different storage temperatures of the storage compartments, the storage compartments can include at least one refrigerating compartment 110 and at least one freezing compartment 140. Among them, the internal temperature of the refrigerating compartment 110 can be maintained between approximately 0°C and 5°C to store items in a refrigerating mode; the internal temperature of the freezing compartment 140 can be maintained between approximately -°C and 0°C to store items in a freezing mode.

[0085] In some possible implementation manners, at least one of the storage compartments can also be set as a vacuum chamber or a variable temperature chamber, etc., which will not be elaborated in the embodiments of this application.

[0086] Exemplarily, two storage compartments can be provided, and the two storage compartments can be stacked vertically; the two storage compartments can be arranged side by side in the horizontal direction. One of them can be set as the refrigerating compartment 110, and one of them can be set as the freezing compartment 140.

[0087] In some embodiments, combined Figure 1 and Figure 2, the cabinet 100 may include an inner container and an outer cabinet housing. The inner container may be configured to form a storage compartment with an opening at the front side, and the front side opening serves as the access opening. The outer cabinet housing may be connected to the outside of the inner container to form the appearance of the refrigerator. Among them, the refrigerating compartment 110 may include the refrigerating inner container and the space inside the refrigerating inner container, and the freezing compartment 140 may include the freezing inner container and the space inside the freezing inner container.

[0088] The cabinet 100 may further include a cabinet insulation layer, which may be disposed between the inner container and the outer cabinet housing. The cabinet insulation layer can keep the storage compartment warm to minimize the heat exchange between the storage compartment and the outside of the refrigerator, which is beneficial to ensuring the refrigeration effect of the refrigerator.

[0089] The refrigerator according to the embodiment of the present application may further include a door body, which is rotatably connected to the cabinet 100 to open or close the access opening. Exemplarily, the door body is hinged to the cabinet 100.

[0090] One door body may be correspondingly provided for each storage compartment; or, two door bodies may be correspondingly provided for each storage compartment, and the two door bodies may rotate in opposite directions to open or close the storage compartment.

[0091] Of course, in some possible implementation manners, a drawer is provided in the storage compartment, and the outer end of the drawer is configured to form a door body.

[0092] The refrigerator according to the embodiment of the present application may further include a refrigeration system for reducing the air temperature in the storage compartment. Exemplarily, the refrigeration system may be disposed in the cabinet 100. The refrigeration system may include a compressor, a condenser, a throttler, and an evaporator that are connected in a cycle.

[0093] When the refrigeration system operates, the compressor compresses the refrigerant vapor to generate high-temperature and high-pressure refrigerant vapor, and transports the refrigerant vapor into the condenser. The condenser liquefies the high-temperature and high-pressure refrigerant vapor to generate high-temperature and low-pressure refrigerant liquid, and transports it to the throttler. After the throttler reduces the pressure of the refrigerant liquid, the high-pressure and low-temperature refrigerant liquid is transformed into low-pressure and low-temperature refrigerant liquid, and is transported to the evaporator. After receiving the low-pressure and low-temperature refrigerant liquid, the evaporator causes it to boil under isobaric conditions, absorb heat and vaporize to form refrigerant vapor, so as to reduce the temperature in the storage compartment.

[0094] In some embodiments, there may be one evaporator, which is located at the rear side inside the freezing inner container and provides cold air for both the freezing compartment 140 and the refrigerating compartment 110 at the same time.

[0095] In some other embodiments, there may be one evaporator. The refrigerator may be provided with only a refrigerating inner container, and the evaporator may be disposed at the rear side inside the refrigerating inner container.

[0096] In still some other embodiments, such as Figure 2 andFigure 3 As shown, two evaporators can be provided, namely a refrigerating evaporator 121 and a freezing evaporator 151. The refrigerating evaporator 121 is arranged at the rear side inside the refrigerating cabinet liner and is used to provide cold air for the refrigerating compartment 110; the freezing evaporator 151 is arranged at the rear side inside the freezing cabinet liner and is used to provide cold air for the freezing compartment 140.

[0097] As Figure 2 and Figure 3 shown, a refrigerating compartment 110 and a refrigerating evaporator chamber 120 are arranged inside the cabinet 100. The refrigerating evaporator chamber 120 is located at the rear lower part of the refrigerating compartment 110, and a refrigerating evaporator 121 is arranged inside the refrigerating evaporator chamber 120.

[0098] A air supply duct 130 for the cold air inside the refrigerating evaporator chamber 120 to flow into the refrigerating compartment 110 is provided between the refrigerating evaporator chamber 120 and the refrigerating compartment 110. The air supply duct 130 can include a duct enclosure wall and a cold air flow channel inside the duct enclosure wall. In this way, the cold air passing through the refrigerating evaporator 121 enters the refrigerating compartment 110 via the air supply duct 130 to reduce the temperature of the refrigerating compartment 110.

[0099] Of course, the refrigerating evaporator chamber 120 is also communicated with the refrigerating compartment 110 through a refrigerating return air opening 123, so that the air inside the refrigerating compartment 110 returns to the refrigerating evaporator chamber 120 through the refrigerating return air opening 123. The refrigerating return air opening 123 can be located below the refrigerating evaporator 121, so that the air flowing back through the refrigerating return air opening 123 can pass through the refrigerating evaporator 121 for heat exchange as much as possible.

[0100] The refrigerating evaporator chamber 120 can include a housing and a space enclosed by the housing. In some embodiments, the housing can be independently arranged with good sealing performance. In other embodiments, the housing can also be formed by combining other components inside the refrigerator, with a compact structure and small installation space occupation.

[0101] In some embodiments, a first air duct assembly 200 is arranged inside the refrigerating cabinet liner. The first air duct assembly 200 is located at the rear side inside the refrigerating cabinet liner. The first air duct assembly 200 and the compartment wall of the refrigerating compartment 110 enclose to form the refrigerating evaporator chamber 120. A part of the first air duct assembly 200 for forming the refrigerating evaporator chamber 120 forms the refrigerating return air opening 123.

[0102] The first air duct assembly 200 can also form the air supply duct 130 to introduce the cold air inside the refrigerating evaporator chamber 120 into the refrigerating compartment 110. Or, the first air duct assembly 200 and the compartment wall of the refrigerating compartment 110 jointly form the air supply duct 130. An air outlet 131 of the air supply duct is arranged on the first air duct assembly 200 and is used for supplying air into the refrigerating compartment 110.

[0103] Reference Figures 4 to 6 As shown in Figures 4 to 6 , the first air duct assembly 200 may include a first air duct plate 210 and a first cover plate 220. The first air duct plate 210 may form a sunken channel and be hermetically connected to the compartment wall of the refrigerating compartment 110 to form a supply air duct 130. The first air duct plate 210 may be a foam plate and may also play a role in heat insulation and heat preservation. The first cover plate 220 may be disposed on the front side of the first air duct plate 210 to improve the structural strength and stability of the first air duct assembly 200, form a good appearance, and shield and protect the inner first air duct plate 210.

[0104] In the embodiment of the present application, by providing the first air duct assembly 200, the refrigerator can be used to form the refrigerating evaporator chamber 120 and also to form the supply air duct 130, making the structure inside the cabinet 100 compact, facilitating the reduction of the installation occupation space, and contributing to the improvement of the volume ratio of the refrigerator.

[0105] Continue to refer to Figure 5 and Figure 6 As shown in Figure 5 and Figure 6 , in some embodiments, the first air duct assembly 200 and the compartment wall of the refrigerating compartment 110 enclose to form the refrigerating evaporator chamber 120. There is a gap between the first air duct plate 210 above the refrigerating evaporator 121 and the rear wall 111 of the refrigerating compartment 110 to form an air outlet 122 of the refrigerating evaporator chamber.

[0106] The bottom end of the first air duct plate 210 is spaced above the bottom end of the first cover plate 220, and the bottom end of the first cover plate 220 is connected to the bottom wall of the refrigerating compartment 110. A refrigerating return air opening 123 is provided at the bottom end of the first cover plate 220 to communicate the refrigerating compartment 110 and the refrigerating evaporator chamber 120.

[0107] On the bottom wall of the refrigerating evaporator chamber 120, that is, the bottom wall portion of the refrigerating compartment 110 that encloses to form the refrigerating evaporator chamber 120, a connection port is provided for connecting a drainage structure to drain the defrosting water of the refrigerating evaporator 121.

[0108] Combined again with Figure 5 and Figure 6 As shown in Figure 5 and Figure 6 , in some embodiments, the bottom of the first air duct assembly 200 is located in front of the refrigerating evaporator 121, so that the bottom of the first air duct assembly 200 protrudes forward to provide an installation space for the refrigerating evaporator 121. The first air duct assembly 200 includes a first part 230, a second part 240, and an inclined part 250. The first part 230 is connected above the second part 240. The first part 230 is configured to form the supply air duct 130. Along the depth direction of the cabinet 100 (corresponding to Figure 5In the Y-axis direction, the front surface of the second part 240 protrudes forward relative to the front surface of the first part 230. The first part 230 and the second part 240 are connected by an inclined part 250, and the inclined part 250 is located above the refrigerating evaporator 121. At the connection of the inclined part 250 and the first part 230, and at the connection of the inclined part 250 and the second part 240, the surfaces facing the inner surface of the refrigerating evaporator chamber 120 are all arc-shaped surfaces, so that the flow resistance of the cold air can be reduced.

[0109] In some embodiments, only the refrigerating compartment 110 can be provided in the cabinet 100 for refrigerating articles. In other embodiments, as Figures 1 to 3 shown, a freezing compartment 140 is also provided in the cabinet 100 for freezing articles. The freezing compartment 140 can be independently configured with an evaporator. In this way, the refrigeration systems of the freezing compartment 140 and the refrigerating compartment 110 operate independently, avoiding heat and cold exchange, and enabling more stable temperature control.

[0110] The cabinet 100 can also be provided with a freezing evaporator chamber 150, and the freezing evaporator chamber 150 is located behind the freezing compartment 140; a freezing evaporator 151 is provided in the freezing evaporator chamber 150.

[0111] A freezing air duct 160 for allowing the cold air in the freezing evaporator chamber 150 to flow into the freezing compartment 140 is provided between the freezing evaporator chamber 150 and the freezing compartment 140. The freezing air duct 160 can include a duct enclosure wall and a cold air flow channel inside the duct enclosure wall.

[0112] The freezing evaporator chamber 150 can also communicate with the freezing compartment 140 through a freezing air return opening 152. The freezing air return opening 152 can be located below the freezing evaporator 151 so that the air flowing back through the freezing air return opening 152 can pass through the freezing evaporator 151 for heat exchange as much as possible. In this way, the cold air passing through the freezing evaporator 151 enters the freezing compartment 140 through the freezing air duct 160, and the air in the freezing compartment 140 returns to the freezing evaporator chamber 150 through the freezing air return opening 152. In this way, the cycle is repeated to reduce the temperature of the freezing compartment 140.

[0113] The freezing evaporator chamber 150 can include a housing and a space enclosed by the housing. In some embodiments, the housing can be independently provided with good sealing performance. In other embodiments, the housing can be formed by combining other components in the refrigerator, with a compact structure and small installation space occupation.

[0114] In some embodiments, a second air duct assembly 170 is provided inside the freezer liner. The second air duct assembly 170 is located at the rear side inside the freezer liner. The second air duct assembly 170 and the compartment wall of the freezer compartment 140 enclose a freezer evaporator chamber 150. There is a gap between the bottom end of the second air duct assembly 170 and the compartment wall of the freezer compartment 140 to form a freezer return air opening 152.

[0115] The second air duct assembly 170 can also form a freezer air duct 160 to introduce the cold air in the freezer evaporator chamber 150 into the freezer compartment 140. Alternatively, the second air duct assembly 170 and the compartment wall of the freezer compartment 140 jointly enclose to form a freezer air duct 160. A freezer air supply opening 161 is provided on the second air duct assembly 170, and the freezer air supply opening 161 communicates the freezer compartment 140 and the freezer air duct 160.

[0116] The second air duct assembly 170 can include a second air duct plate and a second cover plate. The second air duct plate can form a recessed channel and is sealingly connected to the compartment wall of the freezer compartment 140 to form a freezer air duct 160. The second air duct plate can be a foam plate and can also play a role in heat insulation and heat preservation. The second cover plate can be disposed on the front side of the second air duct plate to improve the structural strength and stability of the second air duct assembly 170, form a good appearance, and shield and protect the inner second air duct plate.

[0117] In the embodiments of the present application, by providing the second air duct assembly 170, it can be used to form both the freezer evaporator chamber 150 and the freezer air duct 160, making the structure inside the cabinet 100 compact, facilitating the reduction of the installation occupied space, and contributing to the improvement of the volume ratio of the refrigerator.

[0118] Combined with Figure 3 , in some embodiments, the volume of the freezer evaporator 151 can be larger than the volume of the refrigerating evaporator 121. In this way, it can not only ensure that the relatively large-volume freezer evaporator 151 provides enough cold air for the freezer compartment 140, but also reduce the installation occupied space by reducing the volume of the refrigerating evaporator 121.

[0119] Exemplarily, the freezer evaporator 151 has a generally rectangular first projection on the rear wall of the cabinet 100, and the refrigerating evaporator 121 has a generally rectangular second projection on the rear wall of the cabinet 100. The dimension of the second projection along the width direction of the cabinet 100 (corresponding to the X-axis direction in Figure 3 ) can be smaller than the dimension of the first projection along the width direction of the cabinet 100. The dimension of the second projection along the height direction of the cabinet 100 (corresponding to the Z-axis direction in Figure 3 ) can be smaller than the dimension of the first projection along the height direction of the cabinet 100.

[0120] Exemplarily, the freezing evaporator 151 has a generally rectangular third projection on the bottom wall of the cabinet 100, and the refrigerating evaporator 121 has a generally rectangular second projection on the bottom wall of the cabinet 100. The dimension of the second projection along the depth direction of the cabinet 100 may be smaller than the dimension of the first projection along the depth direction of the cabinet 100.

[0121] The freezing fan is installed in the freezing air duct and is located above the freezing evaporator chamber 150.

[0122] Continuing to refer to Figure 3 , the refrigerator may further include a freezing fan 180. The freezing fan 180 is installed in the freezing air duct 160 and is located above the freezing evaporator chamber 150. The freezing air duct 160 also forms a freezing air inlet so that the cold air in the freezing evaporator chamber 150 enters the freezing air duct 160 through the freezing air inlet. The freezing fan 180 and the freezing air inlet are opposite to each other along the depth direction of the refrigerator. Among them, the freezing fan 180 may be a centrifugal fan.

[0123] As Figure 3 shown, the refrigerator according to the embodiment of the present application may further include a centrifugal fan 300. The centrifugal fan 300 is configured to introduce the cold air in the refrigerating evaporator chamber 120 into the refrigerating compartment 110 through the air supply duct 130 and make the air in the refrigerating compartment 110 return to the refrigerating evaporator chamber 120 through the refrigerating air return opening 123.

[0124] In some embodiments of the present application, different from the freezing fan 180 being located above the freezing evaporator 151, the centrifugal fan 300 for supplying air to the refrigerating compartment 110 is arranged on one side of the refrigerating evaporator 121 along the width direction of the cabinet 100. Or rather, the centrifugal fan 300 and the refrigerating evaporator 121 are arranged side by side left and right along the width direction of the cabinet 100.

[0125] Combined with Figure 7 , in some embodiments of the present application, the refrigerator may further include an air supply volute 400. The air supply volute 400 is located behind the lower part of the refrigerating compartment 110, and a centrifugal fan 300 is arranged in the air supply volute 400.

[0126] The air supply volute 400 may be connected to the first air duct assembly 200, and the connection methods include but are not limited to bonding, clamping, etc., so as to avoid setting a fixing structure on the refrigerating box liner and affecting the sealing performance and heat preservation performance of the refrigerating box liner. A fan chamber is formed between the air supply volute 400 and the first air duct assembly 200, so that the centrifugal fan 300 is installed in the fan chamber.

[0127] The centrifugal fan 300 may be fixedly connected to the first air duct assembly 200. Exemplarily, the centrifugal fan 300 is fixed to the first air duct assembly 200 through a plurality of feet arranged at circumferential intervals, and the connection method is stable and reliable.

[0128] In the embodiment of the present application, the extension line of the motor shaft of the centrifugal fan 300 intersects the rear wall of the box body 100, so that the centrifugal fan 300 is not horizontally arranged. Among them, the rear wall of the box body 100 is perpendicular to and parallel to Figure 7 the XZ plane in, and the rear wall of the box body 100 is opposite to the open end of the refrigerating compartment 110 along the depth direction of the refrigerator.

[0129] For example, the extension line of the motor shaft of the centrifugal fan 300 is perpendicular to the rear wall of the box body 100, that is, the extension line of the motor shaft of the centrifugal fan 300 is parallel to the depth direction of the box body 100, so that the centrifugal fan 300 is vertically arranged, and the fan blades of the centrifugal fan 300 are arranged in the vertical plane. The vertical plane corresponds to Figure 7 the XZ plane in.

[0130] Generally, the diameter dimension of the centrifugal fan 300 is smaller than the dimension in the axial direction of its motor shaft. By setting the extension line of the motor shaft of the centrifugal fan 300 to intersect the rear wall of the box body 100, the smaller axial dimension of the centrifugal fan 300 can be arranged along the depth direction of the box body 100, and the larger diameter dimension is arranged in the vertical plane, reducing the space occupied by the centrifugal fan 300 in the depth direction.

[0131] Combined with Figure 7 , in some embodiments, the air inlet 410 of the air supply volute is communicated with the air outlet 122 of the refrigerating evaporator chamber, so that the air inlet 410 of the air supply volute is communicated with the refrigerating evaporator chamber 120, and is used to suck air from the refrigerating evaporator chamber 120 when the centrifugal fan 300 rotates. The air outlet 420 of the air supply volute is communicated with the air supply air duct 130.

[0132] Along the rotation direction of the centrifugal fan 300, the air outlet 420 of the air supply volute is located downstream of the air inlet 410 of the air supply volute. As Figure 7 shown, the centrifugal fan 300 is located on the left side of the refrigerating evaporator 121, and the centrifugal fan 300 rotates clockwise in the direction S. In the width direction of the box body 100, the air outlet 420 of the air supply volute is located on the left side of the air inlet 410 of the air supply volute.

[0133] In other embodiments, the centrifugal fan 300 can be located on the right side of the refrigerating evaporator 121. At this time, the centrifugal fan 300 rotates counterclockwise. In the width direction of the box body 100, the air outlet 420 of the air supply volute is located on the right side of the air inlet 410 of the air supply volute.

[0134] Thus, driven by the centrifugal fan 300, the cold air in the refrigerating evaporator chamber 120 enters the air supply volute 400 through the air inlet 410 of the air supply volute, and enters the air supply duct 130 through the air outlet 420 of the air supply volute, and then enters the refrigerating compartment 110 through the air outlet 131 of the air supply duct. The air in the refrigerating compartment 110 flows back to the refrigerating evaporator chamber 120 through the refrigerating return air inlet 123.

[0135] In some embodiments of the present application, the air supply volute 400 is located on one side of the refrigerating evaporator chamber 120 along the width direction of the cabinet 100. In Figure 7 the orientation shown, the air supply volute 400 is located on the left side of the refrigerating evaporator chamber 120. The projection of the air supply volute 400 on the side wall of the cabinet 100 is area A, and the projection of the refrigerating evaporator chamber 120 on the side wall of the cabinet 100 is area B. At least part of area A and area B overlap.

[0136] Wherein, the side wall of the cabinet 100 is perpendicular to the rear wall of the cabinet 100, and the side wall of the cabinet 100 is parallel to the YZ plane.

[0137] In the embodiments of the present application, by arranging the air supply volute 400 on one side of the refrigerating evaporator chamber 120 along the width direction of the cabinet 100, the centrifugal fan 300 is located on one side of the refrigerating evaporator 121. And at least part of the area A formed by the projection of the air supply volute 400 overlaps with the area B formed by the projection of the refrigerating evaporator chamber 120, so that the air supply volute 400 utilizes at least part of the space on the side of the refrigerating evaporator chamber 120, reducing the space occupied by the air supply volute 400 and the centrifugal fan 300 in the depth direction of the refrigerator, improving the compactness of the internal structure of the refrigerator, and helping to increase the effective volume of the refrigerator.

[0138] In some embodiments, area B can completely overlap with area A, so that the air supply volute 400 can utilize as much space on the side of the refrigerating evaporator chamber 120 as possible, further increasing the volume ratio of the refrigerator.

[0139] Combined with Figure 7 , in some embodiments, the projections of the air supply volute 400 and the refrigerating evaporator chamber 120 on the rear wall of the cabinet 100 are arranged side by side along the width direction of the cabinet. Such a setting can make the air supply volute 400 occupy as much space on the side of the refrigerating evaporator chamber 120 as possible, reduce the ineffective space on the side of the refrigerating evaporator chamber 120, and increase the effective volume of the refrigerator.

[0140] In some embodiments of the present application, the air supply volute 400 and the refrigerating evaporator chamber 120 are arranged side by side in the width direction of the cabinet 100, and the air supply volute 400 and the refrigerating evaporator chamber 120 are generally at the same horizontal height in the cabinet 100, so that the structures of the air supply volute 400 and the refrigerating evaporator chamber 120 in the height direction of the cabinet 100 are as compact as possible, reducing the installation space occupied by the two in the height direction.

[0141] The air supply volute 400 and the refrigerating evaporator chamber 120 are generally at the same horizontal height in the cabinet 100. It can be understood that the air supply volute 400 and the refrigerating evaporator chamber 120 are arranged at as many positions as possible in the height direction of the cabinet 100, and the overlapping part of area A and area B is as large as possible.

[0142] The air supply volute 400 has a first height in the height direction of the cabinet 100, and the refrigerating evaporator chamber 120 has a second height in the height direction of the cabinet 100. The second height can be greater than the first height. The bottom end of the air supply volute 400 does not protrude beyond the bottom end of the refrigerating evaporator chamber 120, and the top end of the air supply volute 400 does not protrude beyond the top end of the refrigerating evaporator chamber 120, so that the air supply volute 400 reuses the space on the side of the refrigerating evaporator chamber 120, and the air supply volute 400 does not need to additionally occupy the space in the depth direction of the refrigerator, so as to save the space occupied by the refrigerator components. The second height can be less than the first height. The bottom end of the refrigerating evaporator chamber 120 does not protrude beyond the bottom end of the air supply volute 400, and the top end of the refrigerating evaporator chamber 120 does not protrude beyond the top end of the air supply volute 400, so that the air supply volute 400 utilizes the space on the side of the refrigerating evaporator chamber 120, and only the part where the air supply volute 400 protrudes beyond the refrigerating evaporator chamber 120 additionally occupies the space in the depth direction, which can also play a role in saving the space occupied by the refrigerator components. Of course, when the second height is equal to the first height, area A and area B completely overlap in the height direction.

[0143] As Figure 7 shown, in some embodiments, in the height direction of the cabinet 100, the air inlet 410 of the air supply volute is located above the refrigerating evaporator 121, and the bottom end of the air inlet 410 of the air supply volute is not lower than the top end of the refrigerating evaporator 121, so that the air flowing back from the refrigerating air return opening 123 enters the air inlet 410 of the air supply volute after fully exchanging heat with the refrigerating evaporator 121. Moreover, the air outlet 122 of the refrigerating evaporator chamber is located above the refrigerating evaporator 121, and the refrigerating air return opening 123 is located below the refrigerating evaporator 121. Arranging the air inlet 410 of the air supply volute above the refrigerating evaporator 121 can make the air flow from the refrigerating air return opening 123 towards the air outlet 122 of the refrigerating evaporator chamber as much as possible, which helps to ensure the directionality of air flow, improve the heat exchange efficiency, and reduce the turbulent flow of air in the refrigerating evaporator 121 and affect the air flow rate.

[0144] Reference Figure 8 and Figure 9 In some embodiments of the present application, the air supply volute 400 includes a volute portion 430 which is configured to form a space for accommodating the centrifugal fan 300. The volute portion 430 is open on one side facing the first air duct assembly.

[0145] Combined with Figure 10 and Figure 11 the radial distance between the inner surface of the volute portion 430 facing the centrifugal fan 300 and the center of the centrifugal fan 300 gradually increases along the rotation direction of the centrifugal fan 300. In the structure shown in Figure 11 the centrifugal fan 300 rotates in the clockwise direction S, and the radial distance between the inner surface of the volute portion 430 facing the centrifugal fan 300 and the center of the centrifugal fan 300 gradually increases in the clockwise direction. Under the action of the centrifugal force of the impeller of the centrifugal fan 300, the gas is accelerated and gradually thrown towards the volute portion 430, so that the cold air enters the air supply duct 130 through the air outlet 420 of the air supply volute under the restriction of the volute portion 430.

[0146] As Figure 8 and Figure 9 shown, the volute portion 430 is configured to form a communication port 431 which is axially opposite to the centrifugal fan 300 along the motor axis. The communication port 431 can be a circular port.

[0147] Reference Figure 12 and Figure 13 the part of the volute portion 430 forming the communication port 431 has a gap with the rear wall 111 of the refrigerated compartment 110 in the depth direction of the cabinet 100 (corresponding to the Y-axis direction in Figure 13 ), so that the cold air can enter the interior of the air supply volute 400 through the air inlet 410 and the communication port 431 of the air supply volute.

[0148] Continuing to refer to Figure 8 and Figure 9 the air supply volute 400 may include a mounting portion 450 which is connected to the outside of the volute portion 430, and the mounting portion 450 is in surface contact with and connected to the first air duct assembly 200, which can not only mount the air supply volute 400 on the first air duct assembly 200, but also help to ensure the relative sealing of the air supply volute 400.

[0149] In some embodiments, the air supply volute 400 may further include an annular connecting portion 440 which is an open ring. The connecting portion 440 is provided with a notch to form the air inlet 410 of the air supply volute.

[0150] The connecting portion 440 is connected to the outer surface of the volute portion 430 facing away from the centrifugal fan 300. Exemplarily, the connecting portion 440 and the volute portion 430 are integrally formed as one piece, which is beneficial to improving the structural strength and relative sealing performance of the air supply volute 400.

[0151] The connecting portion 440 abuts against the rear wall 111 of the refrigerating compartment 110, thereby restricting cold air from entering the interior of the air supply volute 400 through the air inlet 410 and the communication port 431 of the air supply volute, and playing a role in restricting the flow of cold air. The volute portion 430 within the annular connecting portion 440 is recessed relative to the connecting portion 440 and has a gap with the rear wall 111 of the refrigerating compartment 110, so that the cold air at the air inlet 410 of the air supply volute enters the communication port 431 through this gap.

[0152] The connecting portion 440 may include a connecting plate portion 441 and an abutting plate portion 442. One side of the connecting plate portion 441 is connected to the volute portion 430, and the other side of the connecting plate portion 441 is connected to the abutting plate portion 442. The connecting plate portion 441 may be perpendicular to the abutting plate portion 442. The setting of the connecting plate portion 441 makes the portion of the abutting plate portion 442 and the volute portion 430 that forms the communication port 431 have a gap in the depth direction of the box body (corresponding to Figure 13 the Y-axis direction in

[0153] ), avoiding the abutting plate portion 442 from affecting the flow of cold air between the air inlet 410 and the communication port 431 of the air supply volute.

[0154] Refer to Figure 9 、 Figure 14 and Figure 15 , there is a gap between a part of the mounting portion 450 and the first air duct assembly 200 to form the air outlet 420 of the air supply volute. The air outlet 420 of the air supply volute is located on the side of the air inlet 410 of the air supply volute away from the refrigerating evaporator chamber 120, so that the air inlet 410 of the air supply volute is close to the refrigerating evaporator chamber 120, facilitating the connection between the air inlet 410 of the air supply volute and the air outlet 122 of the refrigerating evaporator chamber. And the air outlet 420 of the air supply volute is far from the refrigerating evaporator chamber 120, facilitating the connection between the air outlet 420 of the air supply volute and the air supply duct 130.

[0155] Combined with Figure 11, the air inlet 410 of the air supply volute is located on one side of the vertical center line of the centrifugal fan 300, and the air outlet 420 of the air supply volute is located on the other side of the vertical center line of the centrifugal fan 300. The vertical center line of the centrifugal fan 300 extends along the height direction of the refrigerator and passes through the center of the motor shaft of the centrifugal fan 300. Such a setting makes the air inlet 410 of the air supply volute and the air outlet 420 of the air supply volute stagger in the circumferential direction of the volute part 430. The air inlet 410 of the air supply volute and the air outlet 420 of the air supply volute respectively have dimensions in the depth direction of the refrigerator to ensure the air inlet and outlet areas.

[0156] In some embodiments, the air inlet 410 of the air supply volute can extend substantially along the circumferential direction of the volute part 430 so that the air inlet 410 of the air supply volute has a larger air inlet area.

[0157] The air supply volute 400 of the embodiment of the present application is in contact with the rear wall 111 of the refrigerating compartment 110 by providing an annular connecting part 440, so that the air supply volute 400 is in sealing contact with the rear wall 111; and, a notch is provided in the connecting part 440 to form the air inlet 410 of the air supply volute, so that cold air enters the interior of the air supply volute 400 through the air inlet 410 of the air supply volute, and the cold air is prevented from escaping to the outside of the air supply volute 400.

[0158] Refer to Figure 16 , in some embodiments, a diversion air duct 260 is provided between the air inlet 410 of the air supply volute and the air outlet 122 of the refrigerating evaporator chamber, so that the air outlet 122 of the refrigerating evaporator chamber blows air towards the air inlet 410 of the air supply volute. The diversion air duct is located above the refrigerating evaporator chamber.

[0159] The diversion air duct 260 plays a role in restricting and guiding the cold air, so that the cold air can flow smoothly from the air outlet 122 of the refrigerating evaporator chamber to the air inlet 410 of the air supply volute, reducing the flow resistance of the cold air.

[0160] The diversion air duct 260 may include a duct enclosure wall and a cold air flow channel formed by enclosing the duct enclosure wall. The duct enclosure wall can be provided independently or can be formed by combining other structures in the refrigerator. In some embodiments of the present application, a part of the first air duct assembly 200 and a part of the compartment wall of the refrigerating compartment 110 are combined to form the diversion air duct 500.

[0161] In some embodiments, the diversion air duct 260 includes: a first air duct wall 261, and the first air duct wall 261 can be formed on the side of the first air duct plate 210 facing the rear wall 111 of the refrigerating compartment 110.

[0162] The first air duct wall 261 is located above the refrigerated evaporator chamber 120. The first air duct wall 261 extends upwardly from the air outlet 122 of the refrigerated evaporator chamber toward the air inlet 410 of the air supply volute. The first air duct wall 261 may be an inclined arc wall or an inclined straight wall.

[0163] The bottom end of the first air duct wall 261 is located at one end of the air outlet 122 of the refrigerated evaporator chamber away from the centrifugal fan 300, and the bottom end of the first air duct wall 261 can be located at the inclined portion 250 of the first air duct assembly 200. The top end of the first air duct wall 261 is higher than the top end of the air inlet 410 of the air supply volute, and the top end of the first air duct wall 261 is closer to the center of the centrifugal fan 300 relative to the end of the air outlet 122 of the refrigerated evaporator chamber facing the centrifugal fan 300.

[0164] Thus, the first air duct wall 261 extends obliquely upward, and the first air duct wall 261 extends along the width direction of the box body (corresponding to Figure 16 The length of the first air duct wall 261 along the height direction of the box (corresponding to the X-axis direction in the middle) covers the air outlet 122 of the refrigerated evaporator chamber, so that the first air duct wall 261 is opposite to the air outlet 122 of the refrigerated evaporator chamber along the width direction of the box. Figure 16 The length of the first air duct wall 261 (in the Z-axis direction) covers the air inlet 410 of the air supply volute, so that the first air duct wall 261 is opposite to the air inlet 410 of the air supply volute along the height direction of the box body.

[0165] Thus, the cold air discharged upward from the air outlet 122 of the refrigerated evaporator chamber can be blown toward the first air duct wall 261, and the cold air flows toward the air inlet 410 of the air supply volute under the restriction of the inclined first air duct wall 261.

[0166] The guide air duct 260 may further include a second air duct wall 262, which may be formed on the side of the first air duct wall 261 facing the rear wall 111 of the refrigerating compartment 110. Both ends of the second air duct wall 262 are respectively connected to the top of the first air duct wall 261 and the top of the air inlet 410 of the air supply volute. The second air duct wall 262 may be an inclined arc wall, or may be an inclined straight wall.

[0167] The second air duct wall 262 is opposite to the first air duct wall 261 along the width direction of the box, and the second air duct wall 262 is opposite to the air inlet 410 of the air supply volute along the height direction of the box. In this way, the cold air flows toward the second air duct wall 262 and the air inlet 410 of the air supply volute under the restriction of the first air duct wall 261, and enters the air inlet 410 of the air supply volute under the restriction of the second air duct wall 262, so that the cold air flows more smoothly in the guide air duct 260.

[0168] The second air duct wall 262 and the first air duct wall 261 are connected by an arc-shaped wall, so that the connection between the second air duct wall 262 and the first air duct wall 261 has a smooth transition, making the flow of cold air in the diversion air duct 260 smoother and reducing the cross-flow of cold air in the diversion air duct 260, etc.

[0169] In the embodiment of the present application, by providing the inclined first air duct wall 261 and the inclined second air duct wall 262, the diversion air duct 260 restricts and guides the cold air blown out from the air outlet 122 of the refrigerating evaporator chamber, so that it smoothly enters the air inlet 410 of the air supply volute, which helps to reduce the wind resistance.

[0170] Continue to refer to Figure 16 , the air supply duct 130 has a first side and a second side that are opposite and spaced apart in the width direction of the cabinet. The air supply volute 400 is close to the first side of the air supply duct 130, and the refrigerating evaporator chamber 120 is close to the second side of the air supply duct 130. In Figure 16 In the shown perspective, the left side is the first side of the air supply duct 130, and the right side is the second side of the air supply duct 130.

[0171] The air supply duct 130 includes: a first air duct section 132, a second air duct section 133, and a third air duct section 134.

[0172] One end of the first air duct section 132 is communicated with the air outlet 420 of the air supply volute, and the first air duct section 132 extends obliquely upward and toward the second side of the air supply duct 130. It can be understood that the first air duct section 132 extends obliquely upward to the right to facilitate guiding the air to the left and right sides of the refrigerating compartment.

[0173] Both the second air duct section 133 and the third air duct section 134 are communicated with the first air duct section 132, and both the second air duct section 133 and the third air duct section 134 are located above the first air duct section 132. The second air duct section 133 and the third air duct section 134 extend toward the first side and the second side of the air supply duct 130 respectively, and both the second air duct section 133 and the third air duct section 134 are communicated with the refrigerating compartment.

[0174] The second air duct section 133 and the third air duct section 134 are respectively provided with air outlets 131 of the air supply duct, which is beneficial to improving the uniformity of the air outlet in the refrigerating compartment.

[0175] In the air supply duct 130 of the embodiment of the present application, by providing the first air duct section 132 to extend obliquely upward, the cold air at the air outlet 420 of the air supply volute at the edge is guided toward the middle in the left and right directions of the air supply duct 130, and by providing the second air duct section 133 and the third air duct section 134, the air is discharged from the left and right sides of the refrigerating compartment, which helps to improve the uniformity of the air blowing toward the refrigerating compartment, and further improves the uniformity of the refrigerating temperature in the refrigerating compartment.

[0176] In some embodiments, the air outlet 131 of the air supply duct can blow air forward, that is, the air outlet 131 of the air supply duct faces the door body of the refrigerator, so that cold air can directly vertically reach the items in the refrigerating compartment.

[0177] In other embodiments, the air outlet 131 of the air supply duct can blow air toward the left and right walls of the refrigerating compartment to avoid direct blowing of cold air onto the items.

[0178] In some embodiments of the present application, the second duct section 133 is close to the first side of the air supply duct 130, and the third duct section 134 is close to the second side of the air supply duct 130. In Figure 16 the shown perspective, the second duct section 133 is located on the left side and the third duct section 134 is located on the right side. The second duct section 133 extends to the left edge of the air supply duct 130 and is configured to form an air outlet that blows air toward the left side of the refrigerating compartment. The third duct section 134 extends to the right edge of the air supply duct 130 and is configured to form an air outlet that blows air toward the right side of the refrigerating compartment. The top end of at least one of the second duct section 133 and the third duct section 134 extends to the top end of the air supply duct 130 and is configured to form an air outlet that blows air toward the top side of the refrigerating compartment. In this way, the left and right sides and the top side of the refrigerating compartment all have the air outlets 131 of the air supply duct, forming a three-dimensional air supply mode, which helps to improve the uniformity of the cold air distribution in the refrigerating compartment.

[0179] In some embodiments, the rear side of the first duct plate 210, that is, the side of the first duct plate 210 facing the rear wall of the refrigerating compartment, is partially recessed to form the air supply duct 130 and the diversion duct 260. The non-recessed part abuts against the rear wall of the refrigerating compartment so that the air supply duct 130 and the diversion duct 260 are relatively sealed.

[0180] Continue to refer to Figure 7 and Figure 16 , the refrigerator may further include a first sealing strip 211. The first sealing strip 211 is disposed on the rear side of the first duct plate 210 and is located at the edges of the air supply duct 130 and the diversion duct 260. The first sealing strip 211 is arranged according to the shapes of the air supply duct 130 and the diversion duct 260 to ensure the relative sealing of the air supply duct 130 and the diversion duct 260.

[0181] Refer to Figure 15 and Figure 16 , the refrigerator may further include a second sealing strip 212. The second sealing strip 212 is disposed between the connecting portion 440 of the air supply volute 400 and the rear wall 111 of the refrigerating compartment to ensure the sealing between the air supply volute 400 and the rear wall 111 of the refrigerating compartment.

[0182] Figure 17 This is a simulation diagram of the air flow field in the refrigerating compartment in some embodiments of the present application. Refer to Figure 17, the cold air in the refrigeration evaporator chamber is smoothly guided by the diversion air duct and enters the air supply volute; after being accelerated and pressurized by the air supply volute, it is sent into the refrigerated compartment through the air supply duct. And, as can be seen from Figure 17 , the flow path of the cold air from the refrigeration evaporator chamber to the refrigerated compartment is smooth, without swirling eddies, etc.

[0183] Referring to Figure 7 , in some embodiments of the present application, an electrical connection chamber 500 is provided on the side of the air supply volute 400 facing away from the refrigeration evaporator chamber 120. The electrical connection chamber 500 is configured to provide at least an electrical connection space for the centrifugal fan 300. The electrical connection chamber 500 can also provide an electrical connection space for detection devices, defrost heaters, etc. on the refrigeration evaporator 121. In this way, it is possible to avoid providing an electrical connection space for electrical connection devices on the first air duct assembly 200.

[0184] In the embodiments of the present application, by providing an electrical connection chamber 500 on the side of the air supply volute 400 facing away from the refrigeration evaporator chamber 120 to provide an electrical connection space for the centrifugal fan 300, detection devices, defrost heaters, etc. on the refrigeration evaporator 121, it is not only convenient for maintenance, but also has a simple structure and does not occupy the space of the first air duct assembly 200.

[0185] The electrical connection chamber 500, the air supply volute 400, and the refrigeration evaporator chamber 120 are arranged side by side in the width direction of the box body. The sum of the widths of the electrical connection chamber 500, the air supply volute 400, and the refrigeration evaporator chamber 120 is the first width.

[0186] The air supply duct 130 has a second width in the width direction of the box body, and the second width is smaller than the first width. It can be understood that the first part 230 of the first air duct assembly 200 has a second width in the width direction of the box body, and the second part 240 has a first width in the width direction of the box body.

[0187] The width of the air supply duct 130 in the embodiments of the present application is small, so that there is a large interval between the left and right sides of the air supply duct 130 and the left and right side walls of the refrigerated compartment, which is convenient for setting the air outlet 131 of the air supply duct.

[0188] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0189] For ease of explanation, the foregoing description has been presented in connection with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived in accordance with the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: A box body, wherein a refrigeration compartment and a refrigeration evaporator compartment are arranged in the box body, wherein the refrigeration evaporator compartment is located at the lower rear of the refrigeration compartment, and a refrigeration evaporator is arranged in the refrigeration evaporator compartment; an air supply duct is arranged between the refrigeration evaporator compartment and the refrigeration compartment for cold air in the refrigeration evaporator compartment to flow into the refrigeration compartment; An air supply volute is located at the lower rear of the refrigerated compartment, a centrifugal fan is arranged in the air supply volute, and an extension line of the motor shaft of the centrifugal fan intersects with the rear wall of the box body; an air inlet of the air supply volute is connected to the refrigerated evaporator chamber, and an air outlet of the air supply volute is connected to the air supply duct; The air supply volute is located on one side of the refrigerated evaporator chamber along the width direction of the box body, and the projection of the air supply volute on the side wall of the box body is area A, and the projection of the refrigerated evaporator chamber on the side wall of the box body is area B, and the area A and the area B at least partially overlap.

2. The refrigerator according to claim 1, characterized in that: The projections of the air supply volute and the refrigeration evaporator chamber on the rear wall of the box body are arranged side by side along the width direction of the box body.

3. The refrigerator according to claim 1, characterized in that: Along the height direction of the box body, the bottom end of the air inlet of the air supply volute is not lower than the top end of the refrigeration evaporator.

4. The refrigerator according to claim 3, characterized in that: The air supply volute comprises an annular connecting portion, and the connecting portion abuts against the rear wall of the refrigerating compartment; The connecting portion is provided with a notch to form an air inlet of the air supply volute; The air outlet of the air supply volute is located on a side of the air inlet of the air supply volute away from the refrigeration evaporator chamber.

5. The refrigerator according to claim 3, characterized in that: A guide air duct is arranged between the air inlet of the air supply volute and the air outlet of the refrigerated evaporator chamber, so that the air outlet of the refrigerated evaporator chamber supplies air toward the air inlet of the air supply volute; the guide air duct is located above the refrigerated evaporator chamber.

6. The refrigerator according to claim 5, characterized in that: The air guide duct comprises: A first air duct wall is located above the refrigerated evaporator chamber; the first air duct wall extends obliquely upward from the air outlet of the refrigerated evaporator chamber toward the air inlet of the air supply volute; the top of the first air duct wall is higher than the top of the air inlet of the air supply volute; The second air duct wall is respectively connected to the top of the first air duct wall and the top of the air inlet of the air supply volute.

7. The refrigerator according to any one of claims 1 to 6, characterized in that: The air supply duct has a first side and a second side that are opposite and spaced apart from each other along the width direction of the box body, the air supply volute is close to the first side of the air supply duct, and the refrigeration evaporator chamber is close to the second side of the air supply duct; The air supply duct comprises: a first duct section, a second duct section and a third duct section; One end of the first air duct section is connected to the air outlet of the air supply volute, and the first air duct section extends obliquely upward and toward the second side of the air supply duct; The second air duct section and the third air duct section are both connected to the first air duct section, and the second air duct section and the third air duct section extend toward the first side and the second side of the air supply duct respectively, and the second air duct section and the third air duct section are both connected to the refrigerating compartment.

8. The refrigerator according to any one of claims 1 to 6, characterized in that: An electrical connection chamber is provided on a side of the air supply volute away from the refrigeration evaporator chamber, and the electrical connection chamber is configured to provide an electrical connection space for at least the centrifugal fan; The sum of the widths of the electrical connection chamber, the air supply volute, and the refrigeration evaporator chamber along the width direction of the box body is a first width; The air supply duct has a second width along the width direction of the box body, and the second width is smaller than the first width.

9. The refrigerator according to any one of claims 1 to 6, characterized in that: The box body is also provided with a freezing chamber and a freezing evaporator chamber, wherein the freezing evaporator chamber is located behind the freezing chamber; a freezing evaporator is provided in the freezing evaporator chamber, and a freezing air duct is provided between the freezing evaporator chamber and the freezing chamber for cold air in the freezing evaporator chamber to flow into the freezing chamber; A refrigeration fan is installed in the refrigeration air duct, and the refrigeration fan is located above the refrigeration evaporator chamber.

10. A refrigerator, characterized in that: include A box body; a refrigeration compartment is arranged in the box body; An air supply volute and a refrigeration evaporator chamber are arranged at the rear of the lower part of the refrigeration compartment; a refrigeration evaporator is arranged in the refrigeration evaporator chamber; A centrifugal fan is arranged in the air supply volute, and an extension line of the motor shaft of the centrifugal fan is perpendicular to the rear wall of the box body; The air outlet of the air supply volute is connected to the air supply duct at the rear wall of the refrigerated compartment, and the air outlet of the air supply duct is used to supply air to the refrigerated compartment; The air inlet of the air supply volute is connected to the air outlet of the refrigerated evaporator chamber, and is used to draw air from the refrigerated evaporator chamber when the centrifugal fan rotates; The refrigerated evaporator chamber is also connected to the refrigerated compartment via a refrigerated return air vent; The air supply volute and the refrigeration evaporator chamber are arranged side by side in the width direction of the box body; The air supply volute and the refrigeration evaporator chamber are substantially located at the same level of the box body.

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