refrigerator

Abstract

This application relates to the field of refrigerator technology, and more particularly to a refrigerator. The refrigerator includes: an outer shell, comprising: a back panel located at the rear of the outer shell along its depth direction; an inner liner disposed within the outer shell, forming a storage compartment and an equipment compartment; an evaporator disposed within the equipment compartment; an air duct disposed within the outer shell, between the inner liner and the back panel, one end of the air duct connecting to the storage compartment and the other end connecting to the equipment compartment; a first support structure located between the back panel and the air duct, with both ends abutting against the back panel and the air duct along the depth direction; and a second support structure located between the inner liner and the air duct, with both ends abutting against the inner liner and the air duct along the depth direction. This application can reduce the risk of foam material entering the storage compartment and equipment compartment.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and more particularly to a refrigerator. Background Technology

[0002] Currently, with the improvement of living standards, refrigerators have become an indispensable part of people's daily lives, as they can store and refrigerate items and extend their shelf life.

[0003] A refrigerator consists of an outer shell, an inner liner, and air ducts. The inner liner contains a storage compartment and an equipment compartment. The equipment compartment is connected to the storage compartment via air ducts to facilitate heat exchange between the two compartments.

[0004] In related technologies, both ends of the duct connect to ventilation openings on the inner liner, and the connection is sealed with sponge to prevent foam material from entering the storage room or equipment compartment through the ventilation openings when the insulation layer is formed inside the outer shell. However, in practice, there are still cases where foam material enters the storage room or equipment compartment through the ventilation openings. Utility Model Content

[0005] This application discloses a refrigerator that can reduce the risk of foam material entering the storage compartment and equipment compartment.

[0006] To achieve the above objectives, embodiments of this application disclose a refrigerator, comprising:

[0007] The housing includes:

[0008] The back plate is located on the rear side of the outer shell along its own depth direction;

[0009] An inner liner is located inside the outer shell, and a storage room and an equipment compartment are formed inside the inner liner;

[0010] The evaporator is located in the equipment compartment;

[0011] An air duct is disposed inside the outer shell and located between the inner liner and the back panel. One end of the air duct is connected to the storage chamber and the other end is connected to the equipment compartment.

[0012] A first support structure is located between the back plate and the air duct, and along the depth direction, both ends of the first support structure abut against the back plate and the air duct respectively;

[0013] The second support structure is located between the inner liner and the air duct, and along the depth direction, both ends of the second support structure abut against the inner liner and the air duct, respectively.

[0014] In this application, the back panel of the outer shell is located behind the inner liner, and the air duct is located between the inner liner and the back panel. A first support structure is provided between the back panel and the air duct, and a second support structure is provided between the inner liner and the air duct. When the refrigerator is lying down, the back panel, air duct, and inner liner are distributed sequentially from bottom to top. The back panel can support the inner liner through the first support structure, the air duct, and the second support structure, preventing the inner liner from moving downward after lying down and preventing gaps from forming between the inner liner and the mold used to support the inner liner. In this way, when the refrigerator is foaming, the mold can always be in contact with the inner wall of the inner liner to maintain the shape of the inner liner, prevent the inner liner from being dented and deformed under the pressure of the foaming material, ensure a tight connection between the air duct and the inner liner, and solve the problem of foaming material entering the storage compartment or equipment compartment due to gaps between the air duct and the inner liner.

[0015] In one alternative embodiment, the inner liner includes:

[0016] A refrigerated inner liner, wherein a refrigerated compartment is provided inside the refrigerated inner liner, and the refrigerated compartment includes the refrigerated compartment;

[0017] A freezing liner, wherein a freezing chamber and the equipment compartment are formed inside the freezing liner;

[0018] The air duct includes:

[0019] A refrigerated air inlet duct is used to transport cold air from the equipment compartment to the refrigerated compartment;

[0020] A refrigerated return air duct is used to introduce air from the refrigerated compartment into the equipment compartment, and a portion of the refrigerated return air duct is located on the back side of the freezer liner;

[0021] The first support structure is provided between the refrigerated return air duct and the back panel, and the second support structure is provided between the refrigerated return air duct and the frozen inner liner;

[0022] Along the depth direction, the first support structure is disposed opposite to the frozen inner liner.

[0023] In this embodiment, the first support structure and the freezing inner liner are arranged opposite each other along the depth direction, which can improve the stability of the entire support structure. The back plate forms a more balanced force transmission path for the freezing inner liner through the first support structure, the refrigerated return air duct and the second support structure, ensuring the stability of the freezing inner liner and preventing gaps from forming between it and the mold due to tilting.

[0024] In one alternative embodiment, the first support structure and the second support structure are staggered along the depth direction of the outer shell.

[0025] In this embodiment, the first support structure and the second support structure are staggered along the depth direction. When the freezer inner liner is subjected to external forces, such as lateral forces or uneven gravity distribution, the staggered first support structure and the second support structure can distribute the force at different locations. Compared with the case where the first support structure and the second support structure are aligned, the staggered arrangement can disperse the stress on the refrigeration return air duct and avoid the refrigeration return air duct from bearing excessive pressure and causing structural damage.

[0026] In one optional embodiment, the dimension of the refrigerated return air duct along the width direction of the outer shell is a first dimension, and the first support structure and / or the second support structure are provided on both sides of the centerline of the first dimension of the refrigerated return air duct.

[0027] In this embodiment, when a first support structure is provided on both sides of the centerline of the first dimension of the refrigerated return air duct, the first support structure on both sides can resist the force in the depth direction when the edge portion of the refrigerated return air duct along the width direction of the outer shell is subjected to a force, thereby preventing the refrigerated return air duct from tipping over; when a second support structure is provided on both sides of the centerline of the first dimension of the refrigerated return air duct, the second support structure on both sides can also resist the force in the depth direction when the edge portion of the refrigerated return air duct along the width direction of the outer shell is subjected to a force, thereby preventing the refrigerated return air duct from tipping over.

[0028] In one alternative embodiment, the refrigerated return air duct includes a first sidewall and a second sidewall distributed along the width direction of the outer casing;

[0029] The first support structure is connected to the first sidewall; and / or, the second support structure is connected to the second sidewall.

[0030] Since the first support structure abuts against the refrigerated return air duct along its depth direction, it exerts a force on the duct along this direction. Compared to the third sidewall of the refrigerated return air duct, which is distributed along its depth direction, the first sidewall has a larger dimension along the depth direction. Therefore, connecting the first support structure to the first sidewall reduces the risk of the refrigerated return air duct denting or deforming. Similarly, connecting the second support structure to the second sidewall also reduces the risk of the refrigerated return air duct denting or deforming.

[0031] In one alternative embodiment, the refrigerated return air duct cooperates with the first support structure to stop and limit the first support structure in the direction from the back plate to the refrigerated return air duct; and / or, the refrigerated return air duct cooperates with the second support structure to stop and limit the second support structure in the direction from the freezer liner to the refrigerated return air duct.

[0032] During the refrigerator's foaming process, the first supporting structure applies a force to the refrigeration return air duct from the back panel towards the refrigeration return air duct. Therefore, this embodiment not only connects the first supporting structure to the first side wall but also uses the refrigeration return air duct to stop and limit the first supporting structure in the direction from the back panel towards the refrigeration return air duct. This distributes the stress at the connection between the first supporting structure and the first side wall, thereby preventing the first supporting structure from detaching from the first side wall. Similarly, this embodiment also prevents the first supporting structure from detaching from the first side wall.

[0033] In one optional embodiment, the sidewall of the refrigerated return air duct along the width direction of the outer shell is provided with a first stop portion, which cooperates with the first support structure to stop and limit the first support structure in the direction from the back plate to the refrigerated return air duct.

[0034] In this embodiment, the first stop portion is used to stop and limit the first support structure. The first stop portion is provided on the side wall of the refrigerated return air duct along the width direction of the outer shell, and is not provided on the third side wall distributed along the depth direction of the refrigerated return air duct. In this way, the force applied by the first stop portion will not be applied to the third side wall with a smaller dimension along the depth direction, thereby preventing the third side wall from being concave and deformed.

[0035] In one optional embodiment, the side wall of the refrigerated return air duct along the width direction of the outer shell is provided with a second stop portion, which cooperates with the second support structure to stop and limit the second support structure in the direction from the frozen inner liner to the refrigerated return air duct.

[0036] In this embodiment, the second stop is used to stop and limit the second support structure. The second stop is located on the side wall of the refrigerated return air duct along the width direction of the outer shell, and is not located on the third side wall of the refrigerated return air duct along the depth direction. In this way, the force applied by the second stop will not be applied to the third side wall with a smaller dimension along the depth direction, thereby preventing the third side wall from being concave and deformed.

[0037] In one optional embodiment, the first support structure is connected to the refrigerated return air duct, and a second positioning part is formed at the end of the first support structure away from the refrigerated return air duct. A first mating part is formed on the back plate, and the second positioning part mates with the first mating part to restrict the first support structure from moving relative to the back plate in a direction perpendicular to the depth direction.

[0038] In this embodiment, a second positioning part is formed on the first support structure, and a first mating part is formed on the back plate. The second positioning part and the first mating part cooperate to restrict the first support structure and the refrigeration return air duct from moving relative to the back plate in a direction perpendicular to the depth direction. Thus, when the refrigerator is foaming, even if the refrigeration return air duct is squeezed by the foaming material, it will not move in a direction perpendicular to the depth direction, thereby keeping the position between the refrigeration return air duct and the freezer inner liner unchanged, avoiding gaps between them, and preventing the foaming material from entering the freezer inner liner.

[0039] The second support structure is connected to the refrigerated return air duct. A first positioning part is formed at the end of the second support structure away from the refrigerated return air duct, and a second mating part is formed on the freezer inner liner. The first positioning part and the second mating part cooperate to restrict the movement of the second support structure relative to the freezer inner liner in a direction perpendicular to the depth direction.

[0040] In this embodiment, a first positioning part is formed on the second support structure, and a second mating part is formed on the freezer inner liner. The first positioning part and the second mating part cooperate to restrict the movement of the second support structure and the refrigeration return air duct relative to the back panel in a direction perpendicular to the depth direction. Thus, when the refrigerator is foaming, even if the refrigeration return air duct is squeezed by the foaming material, it will not move in a direction perpendicular to the depth direction, thereby keeping the position between the refrigeration return air duct and the freezer inner liner unchanged, avoiding the formation of gaps between them, and preventing the foaming material from entering the freezer inner liner.

[0041] In one optional embodiment, both the first support structure and the second support structure include:

[0042] Support legs, both the support legs of the first support structure and the support legs of the second support structure are connected to the refrigerated return air duct;

[0043] The abutment foot is connected to the support leg; the abutment foot of the first support structure abuts against the back plate, and the abutment foot of the second support structure abuts against the freezing inner liner.

[0044] One of the first support structure and the second support structure has a positioning hole on its abutting foot, and one of the back plate and the freezing inner liner has a positioning post corresponding to the positioning hole. The positioning hole and the positioning post are inserted into each other along the depth direction.

[0045] In this embodiment, the positioning post can restrict the movement of the abutment foot in a direction perpendicular to the depth direction. Thus, even if the refrigeration return air duct is squeezed by the foaming material during the refrigerator foaming process, it will not move in a direction perpendicular to the depth direction. This keeps the position between the refrigeration return air duct and the freezer inner liner unchanged, avoiding gaps between them and preventing the foaming material from entering the freezer inner liner.

[0046] In one optional embodiment, the refrigerated return air duct includes a first cover and a second cover distributed along the depth direction of the outer shell, the first cover and the second cover being detachably connected, and the second cover being located between the first cover and the freezing inner liner;

[0047] The first support structure is disposed on the first cover, and the second support structure is disposed on the second cover.

[0048] In this embodiment, the first support structure is located on the first cover, and the second support structure is located on the second cover. When the first support structure or the second support structure is damaged, only the corresponding first cover or second cover needs to be replaced, without the need to replace the entire refrigerated return air duct, thereby reducing maintenance costs. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the structure of the refrigerator disclosed in the embodiments of this application. Figure 1 ;

[0051] Figure 2 This is a schematic diagram of the structure of the refrigerator disclosed in the embodiments of this application. Figure 2 ;

[0052] Figure 3 For this application Figure 2 The diagram shows the structure behind the hidden back panel;

[0053] Figure 4 For this application Figure 3 Enlarged view of point A in the middle;

[0054] Figure 5 This is a partial structural diagram of a refrigerator that is placed horizontally, as disclosed in an embodiment of this application.

[0055] Figure 6 For this application Figure 5 Enlarged view of point B in the middle;

[0056] Figure 7 For this application Figure 3 A schematic diagram of the structure shown from another perspective;

[0057] Figure 8 For this application Figure 7 Enlarged view of point C in the middle;

[0058] Figure 9 This is a schematic diagram of the structure of the refrigerated return air duct disclosed in the embodiments of this application.

[0059] Explanation of reference numerals in the attached figures:

[0060] 100. Outer shell; 110. Back panel;

[0061] 200. Inner liner; 210. Refrigerated inner liner; 220. Frozen inner liner; 221. Second mating part;

[0062] 300, air duct; 301, first cover; 302, second cover; 310, refrigerated return air duct; 311, first side wall; 312, first stop; 313, second stop; 320, ice-making return air duct; 330, ice-making supply air duct;

[0063] 401. Support leg; 402. Abutment foot; 410. First support structure; 420. Second support structure; 421. First positioning part. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0065] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0066] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0067] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0068] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0069] Currently, with the improvement of living standards, refrigerators have become an indispensable part of people's daily lives, as they can store and refrigerate items and extend their shelf life.

[0070] A refrigerator consists of an outer shell, an inner liner, and air ducts. The inner liner contains a storage compartment and an equipment compartment. The equipment compartment is connected to the storage compartment via air ducts to facilitate heat exchange between the two compartments.

[0071] In related technologies, both ends of the duct connect to ventilation openings on the inner liner, and the connection is sealed with sponge to prevent foam material from entering the storage room or equipment compartment through the ventilation openings when the insulation layer is formed inside the outer shell. However, in practice, there are still cases where foam material enters the storage room or equipment compartment through the ventilation openings.

[0072] The inventors discovered that when foaming a refrigerator, the inner liner needs to be laid flat, with the openings of the storage compartment and equipment compartment facing upwards, and the air duct located below the inner liner. Then, the mold is placed inside the inner liner, with the mold fitting snugly against the inner wall of the inner liner to prevent the foaming material from squeezing the inner liner and causing it to deform.

[0073] The inventors further discovered that the mold inside the inner liner is suspended on the foaming equipment. In other words, the position of the mold does not change with the position of the inner liner. After the inner liner is placed lying down in the foaming equipment, it will move downward relative to the mold under its own weight. This will create a gap between the bottom wall of the inner liner (the side wall opposite the opening of the equipment compartment or storage room) and the bottom surface of the mold. During the foaming process, the foaming material will squeeze the inner liner, thereby squeezing and deforming the part of the bottom of the inner liner that is not attached to the mold inward. Since the ventilation opening of the inner liner is located at the bottom of the inner liner, the inward deformation of the bottom of the inner liner will create a gap between the ventilation opening and the air duct, causing the foaming material to enter the storage room or equipment compartment.

[0074] This application discloses a refrigerator that reduces the risk of foam material entering the storage compartment and equipment compartment. The refrigerator provided in this application will be described in detail below with reference to the accompanying drawings and specific embodiments and application scenarios.

[0075] Please see Figures 1 to 3 , Figure 5 and Figure 6 This application discloses a refrigerator, comprising:

[0076] The outer casing 100 forms the exterior surface of the refrigerator. The outer casing 100 can be square or other shapes. The outer casing 100 includes:

[0077] Back plate 110, located on the outer shell 100 along its own depth direction ( Figure 2 and Figure 3 The rear side (in the direction indicated by the arrow y). When the refrigerator is placed in the foaming equipment for foaming, the back panel 110 is placed inside the foaming equipment, and the foaming equipment can support the back panel 110. It should be noted that the rear side of the outer shell 100 refers to the side of the outer shell 100 away from the user when the refrigerator is in use.

[0078] The inner liner 200 is disposed within the outer shell 100, and a storage compartment and an equipment compartment are formed within the inner liner 200. For example, the inner liner 200 can be connected to the outer shell 100 by means of snap-fit, screw connection, etc. This application does not limit the connection method between the inner liner 200 and the outer shell 100.

[0079] An evaporator is located in the equipment compartment. For example, the evaporator, along with the refrigerator's compressor and condenser, is connected in series to form a refrigeration circuit, which can reduce the temperature of the equipment compartment.

[0080] The air duct 300 is located inside the outer shell 100 and between the inner liner 200 and the back panel 110. One end of the air duct 300 is connected to the storage room and the other end is connected to the equipment compartment, thereby realizing heat exchange between the equipment compartment and the storage room.

[0081] A first support structure 410 is located between the back panel 110 and the air duct 300. Along the depth direction, both ends of the first support structure 410 abut against the back panel 110 and the air duct 300, respectively. A second support structure 420 is located between the inner liner 200 and the air duct 300. Along the depth direction, both ends of the second support structure 420 abut against the inner liner 200 and the air duct 300, respectively. Exemplarily, the first support structure 410 can be connected to the air duct 300 or the back panel 110; the second support structure 420 can be connected to the air duct 300 or the inner liner 200. This application does not impose any limitations on this connection.

[0082] Specifically, the refrigerator should be placed in a lying position (such as...). Figure 5 When foaming (as shown), the back panel 110 is supported by the foaming equipment. The back panel 110 can support the air duct 300 through the first support structure 410, and the air duct 300 can support the inner liner 200 through the second support structure 420. Therefore, the back panel 110 can support the inner liner 200 through the first support structure 410, the air duct 300, and the second support structure 420 to prevent the inner liner 200 from moving downward.

[0083] In this application, the back panel 110 of the outer shell 100 is located behind the inner liner 200, and the air duct 300 is located between the inner liner 200 and the back panel 110. A first support structure 410 is provided between the back panel 110 and the air duct 300, and a second support structure 420 is provided between the inner liner 200 and the air duct 300. When the refrigerator is lying down, the back panel 110, the air duct 300, and the inner liner 200 are distributed sequentially from bottom to top. The back panel 110 can support the inner liner 200 through the first support structure 410, the air duct 300, and the second support structure 420. This design prevents the inner liner 200 from shifting downwards after lying down and prevents gaps from forming between the inner liner 200 and the mold inside the inner liner 200 that supports it. During foaming, the mold remains in contact with the inner wall of the inner liner 200 to maintain its shape and prevent it from denting or deforming under the pressure of the foaming material. This ensures a tight fit between the air duct 300 and the inner liner 200, and solves the problem of foaming material entering the storage compartment or equipment compartment due to gaps between the air duct 300 and the inner liner 200.

[0084] Please see Figure 1 , Figure 3 and Figure 5 In one alternative embodiment, the inner liner 200 includes:

[0085] The refrigerator inner liner 210 contains a refrigerator compartment, which is a storage compartment for frequently accessed food items such as vegetables and dairy products.

[0086] The freezer inner liner 220 contains a freezer compartment and an equipment compartment. Specifically, a partition (not shown in the figure) can be installed inside the freezer inner liner 220 to divide the space inside the freezer inner liner 220 into a freezer compartment and an equipment compartment. The storage compartment mentioned above may also include a freezer compartment.

[0087] Duct 300 includes:

[0088] The refrigerated air inlet duct (not shown in the figure) is used to deliver cold air from the equipment compartment to the refrigerated compartment.

[0089] The refrigerated return air duct 310 is used to introduce air from the refrigerated compartment into the equipment compartment, and a portion of the refrigerated return air duct 310 is located on the back side of the freezer liner 220.

[0090] A first support structure 410 is provided between the refrigerated return air duct 310 and the back panel 110, and a second support structure 420 is provided between the refrigerated return air duct 310 and the freezer inner liner 220. Along the depth direction, the first support structure 410 and the freezer inner liner 220 are arranged opposite to each other.

[0091] If the first support structure 410 is misaligned with the freezer inner liner 220 along the depth direction, the back plate 110 can still support the freezer inner liner 220 through the first support structure 410, the air duct 300, and the second support structure 420. However, this will result in uneven stress on the first support structure 410. Consequently, when components such as the freezer inner liner 220 and the refrigerated return air duct 310 are subjected to external forces, the misaligned first support structure 410 may not be able to effectively transfer the force to the back plate 110, which could easily cause the freezer inner liner 220 to tilt. In this embodiment, the first support structure 410 and the freezer inner liner 220 are arranged opposite each other along the depth direction, which improves the stability of the entire support structure. The back plate 110 forms a more balanced force transmission path for supporting the freezer inner liner 220 through the first support structure 410, the refrigerated return air duct 310, and the second support structure 420, ensuring the stability of the freezer inner liner 220 and preventing gaps from forming between it and the mold due to tilting.

[0092] For example, a partition structure can be provided in the cold storage room to form an ice-making chamber. In this case, the air duct 300 may include an ice-making air supply duct 330 and an ice-making air return duct 320. The ice-making air supply duct 330 is used to deliver cold air from the equipment compartment to the ice-making chamber, and the ice-making air return duct 320 is used to deliver air from the ice-making chamber to the equipment compartment.

[0093] Please see Figure 7 and Figure 8 In one alternative embodiment, the first support structure 410 and the second support structure 420 are staggered along the depth direction of the outer shell 100.

[0094] In this embodiment, the first support structure 410 and the second support structure 420 are staggered along the depth direction. When the freezer inner liner 220 is subjected to external forces, such as lateral forces or uneven gravity distribution, the staggered first support structure 410 and the second support structure 420 can distribute the force at different locations. Compared with the case where the first support structure 410 and the second support structure 420 are aligned, the staggered arrangement can disperse the stress on the refrigerated return air duct 310, avoiding excessive pressure on the refrigerated return air duct 310 and causing structural damage. Of course, the first support structure 410 and the second support structure 420 can also be arranged opposite each other along the depth direction of the outer shell 100, and this application does not limit this.

[0095] Please see Figure 8In one alternative embodiment, the refrigerated return air duct 310 is along the width direction of the outer casing 100. Figure 2 and Figure 3 The dimension (in the direction indicated by the arrow in the middle) is the first dimension. A first support structure 410 and / or a second support structure 420 are provided on both sides of the centerline of the first dimension of the refrigerated return air duct 310. That is, a first support structure 410 is provided on both sides of the centerline of the first dimension of the duct 310, and / or a second support structure 420 is provided on both sides of the centerline of the first dimension of the duct 310. Specifically, the width and depth directions of the outer shell 100 are perpendicular to the height direction of the outer shell 100. Figure 2 and Figure 3 (The direction indicated by the arrow in the middle).

[0096] In this embodiment, when a first support structure 410 is provided on both sides of the centerline of the first dimension of the refrigerated return air duct 310, the first support structures 410 on both sides can resist the force in the depth direction when the edge portion of the refrigerated return air duct 310 along the width direction of the outer shell 100 is subjected to a force, thereby preventing the refrigerated return air duct 310 from tipping over. When a second support structure 420 is provided on both sides of the centerline of the first dimension of the refrigerated return air duct 310, the second support structures 420 on both sides can also resist the force in the depth direction when the edge portion of the refrigerated return air duct 310 along the width direction of the outer shell 100 is subjected to a force, thereby preventing the refrigerated return air duct 310 from tipping over. Of course, the first support structure 410 and the second support structure 420 can also be set corresponding to the centerline of the first dimension of the refrigerated return air duct 310, and this application does not limit this.

[0097] Please see Figure 9 In one optional embodiment, the refrigerated return air duct 310 includes a first sidewall 311 and a second sidewall distributed along the width direction of the outer casing 100, and the first support structure 410 is connected to the first sidewall 311.

[0098] Since the first support structure 410 abuts against the refrigerated return air duct 310 along the depth direction, the first support structure 410 will exert a force on the refrigerated return air duct 310 along the depth direction. Compared with the third sidewall distributed along the depth direction of the refrigerated return air duct 310, the first sidewall 311 has a larger dimension along the depth direction. Therefore, connecting the first support structure 410 and the first sidewall 311 can reduce the risk of the refrigerated return air duct 310 being dented and deformed.

[0099] Please see Figure 9 In one optional embodiment, the refrigerated return air duct 310 includes a first sidewall 311 and a second sidewall distributed along the width direction of the outer casing 100, and the second support structure 420 is connected to the second sidewall.

[0100] Since the second support structure 420 abuts against the refrigerated return air duct 310 along the depth direction, the second support structure 420 will exert a force on the refrigerated return air duct 310 along the depth direction. Compared with the third sidewall distributed along the depth direction of the refrigerated return air duct 310, the second sidewall has a larger dimension along the depth direction. Therefore, connecting the second support structure 420 to the second sidewall can reduce the risk of the refrigerated return air duct 310 being dented or deformed.

[0101] Please see Figure 9 In order to improve the connection stability between the refrigerated return air duct 310 and the first support structure 410, in an optional embodiment, the refrigerated return air duct 310 cooperates with the first support structure 410 to stop and limit the first support structure 410 in the direction from the back plate 110 to the refrigerated return air duct 310.

[0102] During the foaming process in the refrigerator, the first support structure 410 applies a force to the refrigeration return air duct 310 in the direction from the back plate 110 toward the refrigeration return air duct 310. Therefore, this embodiment not only connects the first support structure 410 to the first side wall 311, but also uses the refrigeration return air duct 310 to stop and limit the first support structure 410 in the direction from the back plate 110 toward the refrigeration return air duct 310. This can distribute the stress at the connection between the first support structure 410 and the first side wall 311, thereby preventing the first support structure 410 from detaching from the first side wall 311.

[0103] Please see Figure 9 In one alternative embodiment, the refrigerated return air duct 310 cooperates with the second support structure 420 to stop and limit the second support structure 420 in the direction from the freezer inner liner 220 to the refrigerated return air duct 310.

[0104] During the foaming process in the refrigerator, the second support structure 420 applies a force to the refrigerator return air duct 310 in the direction from the freezer inner liner 220 to the refrigerator return air duct 310. Therefore, this embodiment not only connects the second support structure 420 to the second side wall, but also uses the refrigerator return air duct 310 to stop and limit the second support structure 420 in the direction from the freezer inner liner 220 to the refrigerator return air duct 310. This can distribute the stress at the connection between the second support structure 420 and the second side wall, thereby preventing the second support structure 420 from detaching from the second side wall.

[0105] Please see Figure 9 In one optional embodiment, the sidewall of the refrigerated return air duct 310 along the width direction of the outer shell 100 is provided with a first stop portion 312. The first stop portion 312 cooperates with the first support structure 410 to stop and limit the first support structure 410 in the direction from the back plate 110 to the refrigerated return air duct 310.

[0106] In this embodiment, the first stop portion 312 is used to stop and limit the first support structure 410. The first stop portion 312 is provided on the side wall of the refrigerated return air duct 310 along the width direction of the outer shell 100, and is not provided on the third side wall of the refrigerated return air duct 310 distributed along the depth direction. In this way, the force applied by the first stop portion 312 will not be applied to the third side wall with a smaller dimension along the depth direction, thereby preventing the third side wall from being concave and deformed.

[0107] Please see Figure 9 In one optional embodiment, the side wall of the refrigerated return air duct 310 along the width direction of the outer shell 100 is provided with a second stop portion 313. The second stop portion 313 cooperates with the second support structure 420 to stop and limit the second support structure 420 in the direction from the frozen inner liner 220 to the refrigerated return air duct 310.

[0108] In this embodiment, the second stop portion 313 is used to stop and limit the second support structure 420. The second stop portion 313 is provided on the side wall of the refrigerated return air duct 310 along the width direction of the outer shell 100, and is not provided on the third side wall of the refrigerated return air duct 310 distributed along the depth direction. In this way, the force applied by the second stop portion 313 will not be applied to the third side wall with a smaller dimension along the depth direction, thereby preventing the third side wall from being concave and deformed.

[0109] Please see Figure 3 and Figure 4 In one optional embodiment, the first support structure 410 is connected to the refrigerated return air duct 310. A second positioning portion is formed at the end of the first support structure 410 away from the refrigerated return air duct 310, and a first mating portion is formed on the back plate 110. The second positioning portion mates with the first mating portion to restrict the first support structure 410 from moving relative to the back plate 110 in a direction perpendicular to the depth direction. For example, one of the second positioning portion and the first mating portion can be a positioning recess, and the other can be a positioning protrusion; wherein, the positioning recess can be a positioning groove, a positioning hole, etc., and the positioning protrusion can be a positioning protrusion, a positioning post, etc.

[0110] In this embodiment, a second positioning part is formed on the first support structure 410, and a first mating part is formed on the back plate 110. The second positioning part and the first mating part cooperate to restrict the first support structure 410 and the refrigeration return air duct 310 from moving relative to the back plate 110 in a direction perpendicular to the depth direction. Thus, when the refrigerator is foaming, even if the refrigeration return air duct 310 is squeezed by the foaming material, it will not move in a direction perpendicular to the depth direction, thereby keeping the position between the refrigeration return air duct 310 and the freezer inner liner 220 unchanged, avoiding gaps between them, and preventing the foaming material from entering the freezer inner liner 220.

[0111] In one optional embodiment, the second support structure 420 is connected to the refrigerated return air duct 310. A first positioning portion 421 is formed at the end of the second support structure 420 away from the refrigerated return air duct 310, and a second mating portion 221 is formed on the freezer inner liner 220. The first positioning portion 421 and the second mating portion 221 cooperate to restrict the movement of the second support structure 420 relative to the freezer inner liner 220 in a direction perpendicular to the depth direction. For example, one of the first positioning portion 421 and the second mating portion 221 can be a positioning recess, and the other can be a positioning protrusion; wherein the positioning recess can be a positioning groove, a positioning hole, etc., and the positioning protrusion can be a positioning protrusion, a positioning post, etc.

[0112] In this embodiment, a first positioning part 421 is formed on the second support structure 420, and a second mating part 221 is formed on the freezer inner liner 220. The first positioning part 421 and the second mating part 221 cooperate to restrict the movement of the second support structure 420 and the refrigeration return air duct 310 relative to the back plate 110 in a direction perpendicular to the depth direction. Thus, when the refrigerator is foaming, even if the refrigeration return air duct 310 is squeezed by the foaming material, it will not move in a direction perpendicular to the depth direction, thereby keeping the position between the refrigeration return air duct 310 and the freezer inner liner 220 unchanged, avoiding the formation of gaps between them, and preventing the foaming material from entering the freezer inner liner 220.

[0113] Please see Figure 4 In one optional embodiment, both the first support structure 410 and the second support structure 420 include:

[0114] The support leg 401 of the first support structure 410 and the support leg 401 of the second support structure 420 are both connected to the refrigerated return air duct 310. For example, the support leg 401 of the first support structure 410 and the support leg 401 of the second support structure 420 can be integrally formed with the refrigerated return air duct 310.

[0115] The abutment foot 402 is connected to the support leg 401. The abutment foot 402 of the first support structure 410 abuts against the back plate 110, and the abutment foot 402 of the second support structure 420 abuts against the freezer inner liner 220. For example, the support leg 401 and the abutment foot 402 of the first support structure 410 can be integrally formed, and the support leg 401 and the abutment foot 402 of the second support structure 420 can be integrally formed.

[0116] One of the first support structure 410 and the second support structure 420 has a positioning hole on its abutment foot 402. The back plate 110 and the freezer inner liner 220 have a positioning post corresponding to the positioning hole. The positioning hole and the positioning post are inserted along the depth direction. That is to say, the positioning post can restrict the movement of the abutment foot 402 in a direction perpendicular to the depth direction. In this way, when the refrigerator is foaming, even if the refrigeration return air duct 310 is squeezed by the foaming material, it will not move in a direction perpendicular to the depth direction. This keeps the position between the refrigeration return air duct 310 and the freezer inner liner 220 unchanged, avoids gaps between the two, and prevents the foaming material from entering the freezer inner liner 220.

[0117] Please see Figure 9 In one optional embodiment, the refrigerated return air duct 310 includes a first cover 301 and a second cover 302 distributed along the depth direction of the outer shell 100. The first cover 301 and the second cover 302 are detachably connected. The second cover 302 is located between the first cover 301 and the freezer inner liner 220. A first support structure 410 is disposed on the first cover 301, and a second support structure 420 is disposed on the second cover 302.

[0118] In this embodiment, the first support structure 410 is provided on the first cover 301, and the second support structure 420 is provided on the second cover 302. When the first support structure 410 or the second support structure 420 is damaged, only the corresponding first cover 301 or second cover 302 needs to be replaced, without the need to replace the entire refrigerated return air duct 310, thereby reducing maintenance costs.

[0119] The foregoing embodiments of this application focus on describing the differences between various embodiments. As long as the different optimization features between embodiments are not contradictory, they can be combined to form better embodiments. For the sake of brevity, these differences will not be elaborated upon here. The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art, under the guidance of this application, can make many modifications without departing from the spirit and scope of the claims, all of which fall within the protection scope of this application.

Claims

1. A refrigerator characterized by comprising: include: The housing (100) includes: The back plate (110) is located on the rear side of the outer shell (100) along its own depth direction; An inner liner (200) is disposed inside the outer shell (100), and a storage room and an equipment compartment are formed inside the inner liner (200); The evaporator is located in the equipment compartment; A duct (300) is disposed inside the outer shell (100) and located between the inner liner (200) and the back panel (110). One end of the duct (300) is connected to the storage room and the other end is connected to the equipment compartment. A first support structure (410) is located between the back plate (110) and the air duct (300). Along the depth direction, the two ends of the first support structure (410) abut against the back plate (110) and the air duct (300) respectively. The second support structure (420) is located between the inner liner (200) and the air duct (300). Along the depth direction, the two ends of the second support structure (420) abut against the inner liner (200) and the air duct (300) respectively.

2. The refrigerator according to claim 1, characterized in that, The inner liner (200) includes: A refrigerated inner liner (210) is provided with a refrigerated compartment inside the refrigerated inner liner (210), and the refrigerated compartment includes the refrigerated compartment; A freezing liner (220) is provided, wherein a freezing chamber and the equipment compartment are formed within the freezing liner (220); The air duct (300) includes: A refrigerated air inlet duct is used to transport cold air from the equipment compartment to the refrigerated compartment; A refrigerated return air duct (310) is used to introduce air from the refrigerated compartment into the equipment compartment, and a portion of the refrigerated return air duct (310) is located on the back side of the freezer liner (220). The first support structure (410) is provided between the refrigerated return air duct (310) and the back panel (110), and the second support structure (420) is provided between the refrigerated return air duct (310) and the frozen inner liner (220); Along the depth direction, the first support structure (410) is disposed opposite to the frozen inner liner (220).

3. The refrigerator according to claim 2, characterized in that, Along the depth direction of the outer shell (100), the first support structure (410) and the second support structure (420) are staggered.

4. The refrigerator according to claim 2, characterized in that, The dimension of the refrigerated return air duct (310) along the width direction of the outer shell (100) is a first dimension, and the first support structure (410) and / or the second support structure (420) are provided on both sides of the centerline of the first dimension of the refrigerated return air duct (310).

5. The refrigerator according to claim 2, characterized in that, The refrigerated return air duct (310) includes a first sidewall (311) and a second sidewall distributed along the width direction of the outer shell (100); The first support structure (410) is connected to the first sidewall (311); and / or, the second support structure (420) is connected to the second sidewall.

6. The refrigerator according to claim 5, characterized in that, The refrigerated return air duct (310) cooperates with the first support structure (410) to stop and limit the first support structure (410) in the direction from the back plate (110) to the refrigerated return air duct (310); And / or, the refrigerated return air duct (310) cooperates with the second support structure (420) to stop and limit the second support structure (420) in the direction from the freezer liner (220) to the refrigerated return air duct (310).

7. The refrigerator according to claim 6, characterized in that, The refrigerated return air duct (310) has a first stop (312) on its side wall along the width direction of the outer shell (100). The first stop (312) cooperates with the first support structure (410) to stop and limit the first support structure (410) in the direction from the back plate (110) toward the refrigerated return air duct (310); and / or, The side wall of the refrigerated return air duct (310) along the width direction of the outer shell (100) is provided with a second stop (313), which cooperates with the second support structure (420) to stop and limit the second support structure (420) in the direction from the frozen inner liner (220) to the refrigerated return air duct (310).

8. The refrigerator according to claim 2, characterized in that, The first support structure (410) is connected to the refrigerated return air duct (310). A second positioning part is formed at the end of the first support structure (410) away from the refrigerated return air duct (310). A first mating part is formed on the back plate (110). The second positioning part mates with the first mating part to restrict the first support structure (410) from moving relative to the back plate (110) in a direction perpendicular to the depth direction; or, The second support structure (420) is connected to the refrigerated return air duct (310). A first positioning part (421) is formed at the end of the second support structure (420) away from the refrigerated return air duct (310). A second mating part (221) is formed on the frozen inner liner (220). The first positioning part (421) and the second mating part (221) cooperate to restrict the second support structure (420) from moving relative to the frozen inner liner (220) in a direction perpendicular to the depth direction.

9. The refrigerator according to claim 2, characterized in that, Both the first support structure (410) and the second support structure (420) include: Support leg (401), the support leg (401) of the first support structure (410) and the support leg (401) of the second support structure (420) are both connected to the refrigerated return air duct (310); Abutting foot (402) is connected to the supporting leg (401). The abutting foot (402) of the first supporting structure (410) abuts against the back plate (110), and the abutting foot (402) of the second supporting structure (420) abuts against the freezing inner liner (220). The first support structure (410) and the second support structure (420) have a positioning hole on their abutment foot (402). The back plate (110) and the freezing inner liner (220) have a positioning post corresponding to the positioning hole. The positioning hole and the positioning post are inserted into each other along the depth direction.

10. The refrigerator according to claim 2, characterized in that, The refrigerated return air duct (310) includes a first cover (301) and a second cover (302) distributed along the depth direction of the outer shell (100). The first cover (301) and the second cover (302) are detachably connected, and the second cover (302) is located between the first cover (301) and the frozen inner liner (220). The first support structure (410) is disposed on the first cover (301), and the second support structure (420) is disposed on the second cover (302).

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