A refrigerator

Abstract

The application discloses a refrigerator, and relates to the technical field of refrigeration equipment. The cabinet is assembled by a plurality of panels, and the sealing performance of the storage chamber of the cabinet can be improved. The refrigerator comprises a cabinet, the cabinet comprises a bottom panel and four side panels, and the bottom panel and the side panels enclose a storage chamber; two side panels connected with each other or the bottom panel and one of the side panels connected with each other are a first panel, and the other is a second panel; the first panel is connected with the second panel through a hanging device, the hanging device comprises a hook on the first panel and a fixed shaft in the second panel, and the extension direction of the fixed shaft is perpendicular to the first panel; wherein the hook can slide in a direction perpendicular to the second panel; the hanging device further comprises a locking mechanism, and when the hook is hung on the fixed shaft, the locking mechanism provides a pulling force for the hook to slide in a direction away from the fixed shaft. The refrigerator of the application is used for refrigerating articles.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to a refrigerator. BACKGROUND

[0002] The refrigerator is a common refrigeration equipment, which has the advantages of large storage space, high cost performance and the like, and is widely used for food refrigeration in supermarkets or other occasions. The refrigerator generally comprises a cabinet and a door body. The cabinet forms a storage room, and the door body is rotationally connected with the cabinet through a hinged structure. The door body can open or close the storage room in the process of rotation relative to the cabinet.

[0003] Generally, the cabinet of the refrigerator is integrally foamed and formed. The present application provides a refrigerator, wherein the cabinet is assembled and spliced by a plurality of panels. In order to facilitate the disassembly and assembly of the cabinet at any time, the two panels are generally fixedly connected through a screw connection structure. For example, a connecting piece can be arranged between the two adjacent panels. The connecting piece comprises a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are respectively fixedly connected with the two panels connected with each other through the screw connection structure. However, when the cabinet is fixedly connected through the screw connection structure, a splicing gap may occur between the two panels, and the sealing performance of the storage room of the cabinet is poor. SUMMARY

[0004] The embodiments of the present application provide a refrigerator. The cabinet of the refrigerator is assembled by a plurality of panels, which can improve the sealing performance of the storage room of the cabinet.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions:

[0006] The embodiments of the present application provide a refrigerator, which comprises: a cabinet, the cabinet comprising a bottom panel and a plurality of side panels, the bottom panel and the side panels surrounding a storage room; wherein the bottom panel constitutes a bottom wall of the storage room, the plurality of side panels are arranged along the circumference of the bottom panel, and the plurality of side panels are sequentially and detachably connected to constitute side walls of the storage room, and the bottom panel is detachably connected with each side panel; a door body, the door body being movably connected with the cabinet and being used for opening or closing an upper opening of the storage room. Two side panels connected with each other, or the bottom panel and one of the side panels connected with each other are a first panel, and the other is a second panel; the side wall of the first panel abuts against the inner wall of the second panel, and the first panel and the second panel are connected through a hanging device. The hanging device comprises: a hook, which is located on the first panel and extends out of the side wall of the first panel, and the hook is movably connected with the first panel and can slide in a direction perpendicular to the second panel; a fixed shaft, which is embedded in the second panel; wherein the extension direction of the fixed shaft is parallel to the contact surface of the first panel and the second panel; and a locking mechanism, which can exert a tension force on the hook when the hook extends into the second panel and is hung on the fixed shaft, and the tension force is used to make the hook slide away from the fixed shaft.

[0007] The refrigerator provided by the embodiment of the present application is characterized in that the first panel and the second panel are connected through the hooking device, the side wall of the first panel and the inner wall of the second panel are abutted together during the assembly of the cabinet, the part of the hook that extends out of the first panel is inserted into the second panel, and the hook is hooked on the fixed shaft, so as to limit the displacement of the first panel relative to the second panel in the direction perpendicular to the second panel. Then, the locking mechanism is used to apply a tension force to the hook, the tension force is used to make the hook slide in the direction away from the fixed shaft, the locking mechanism can make the hook and the fixed shaft have a tension force, the side wall of the first panel can be pressed on the inner wall of the second panel under the action of the tension force, on one hand, the gap at the connection between the first panel and the second panel can be prevented, and the sealing performance of the storage chamber can be improved, on the other hand, the first panel and the second panel can be reliably connected and fixed together. Compared with the prior art, the refrigerator of the embodiment of the present application is characterized in that the hook is arranged to extend out of the first panel, the fixed shaft is embedded in the second panel, when the first panel and the second panel are connected, the part of the hook that extends out of the first panel is inserted into the second panel, and the hook is hooked on the fixed shaft, so as to prevent the gap between the first panel and the second panel. In addition, the hooking device is provided with the locking mechanism, the side wall of the first panel can be pressed on the inner wall of the second panel by the locking mechanism, and the sealing performance of the storage chamber of the cabinet can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 FIG. 1 is a perspective view of the refrigerator according to the embodiment of the present application;

[0009] Figure 2 FIG. 2 is an exploded view of the refrigerator according to the embodiment of the present application;

[0010] Figure 3 FIG. 3 is an assembly view of the unit module of the refrigerator according to the embodiment of the present application;

[0011] Figure 4 FIG. 4 is an exploded view of the unit module of the refrigerator according to the embodiment of the present application;

[0012] Figure 5 FIG. 5 is a structural view of the suspension structure of the refrigerator according to the embodiment of the present application;

[0013] Figure 6 FIG. 6 is an internal structure view of the refrigerator according to the embodiment of the present application;

[0014] Figure 7 FIG. 7 is an installation position view of the side panel of the refrigerator according to the embodiment of the present application;

[0015] Figure 8 FIG. 8 is a partial enlarged view of A in FIG. 7; Figure 7

[0016] ​Figure 9 Fig. 4 is a partial enlarged view of the middle B; Figure 7 Fig. 5 is a side view of the hook of the refrigerator of the embodiment of the present application when the hook is hung on the fixed shaft;

[0017] Figure 10 Fig. 6 is a side view of the hook of the refrigerator of the embodiment of the present application when the hook is rotated into the first installation slot;

[0018] Figure 11 Fig. 7 is a side view of the locking mechanism of the refrigerator of the embodiment of the present application;

[0019] Figure 12 Fig. 8 is a perspective view of the locking mechanism of the refrigerator of the embodiment of the present application;

[0020] Figure 13 Fig. 9 is an axial view of the locking mechanism of the refrigerator of the embodiment of the present application;

[0021] Figure 14 Fig. 10 is a perspective view of the hook of the refrigerator of the embodiment of the present application;

[0022] Figure 15 Fig. 11 is a side view of the hook of the refrigerator of the embodiment of the present application;

[0023] Figure 16 Fig. 12 is a structural schematic view of the hook of the refrigerator of the embodiment of the present application when the hook is hung on the fixed shaft;

[0024] Figure 17 Fig. 13 is a structural schematic view of the hook of the refrigerator of the embodiment of the present application when the hook is locked on the fixed shaft;

[0025] Figure 18 Fig. 14 is an exploded structural schematic view of the hook assembly of the refrigerator of the embodiment of the present application;

[0026] Figure 19 Fig. 15 is an exploded structural schematic view of the fixed shaft assembly of the refrigerator of the embodiment of the present application;

[0027] Figure 20 Fig. 16 is an exploded structural schematic view of the air duct assembly of the refrigerator of the embodiment of the present application;

[0028] Figure 21 Fig. 17 is an assembled structural schematic view of the air duct assembly of the refrigerator of the embodiment of the present application;

[0029] Figure 22 Fig. 18 is a top view of the air duct assembly of the refrigerator of the embodiment of the present application;

[0030] Figure 23 Fig. 19 is a top view of the cabinet of the embodiment of the present application;

[0031] Figure 24 Fig. 20 is a schematic view of the gas flow direction of the storage chamber when the refrigerator of the embodiment of the present application starts to blow air;

[0032] Figure 25 A schematic view of the gas flow direction of the storage chamber of the refrigerator according to an embodiment of the present application after the air supply is stabilized;

[0033] Figure 26 A schematic view of the three-dimensional structure of the air guide member of the refrigerator according to an embodiment of the present application;

[0034] Figure 27 A schematic view of the horizontal cross section of the air guide member of the refrigerator according to an embodiment of the present application; Figure 23 A partial enlarged view of the middle C;

[0035] Figure 28 A schematic view of the horizontal cross section of the air guide member of the refrigerator according to an embodiment of the present application; Figure 1 ;

[0036] Figure 29 A schematic view of the horizontal cross section of the air guide member of the refrigerator according to an embodiment of the present application; Figure 2 ;

[0037] Figure 30 A partial enlarged view of the middle D; Figure 1

[0038] Reference signs

[0039] 1 - cabinet; 11 - bottom panel; 111 - ventilation opening; 12 - side panel; 121 - left panel; 122 - right panel; 123 - front panel; 124 - rear panel; 13 - suspension structure; 131 - support plate; 132 - hanger rod; 14 - cabinet frame; 141 - fixing groove.

[0040] 2 - door body.

[0041] 3 - hanging device; 3a - hook assembly; 3b - fixing shaft assembly; 31 - hook; 311 - mounting hole; 3111 - long hole section; 3112 - round hole section; 32 - fixing shaft; 33 - locking mechanism; 331 - cam; 332 - positioning structure; 3321 - ratchet; 3322 - tenon; 333 - rotation shaft; 3331 - operation part; 34 - first mounting seat; 341 - first mounting groove; 342 - rotation shaft hole; 34a - sub mounting seat; 35 - second mounting seat; 351 - second mounting groove; 36 - limiting structure; 361 - limiting protrusion; 362 - limiting groove; 37 - anti-slip structure; 371 - first anti-slip structure; 372 - second anti-slip structure.

[0042] 4 - air duct assembly; 41 - centrifugal fan; 42 - air duct plate; 421 - air duct; 4211 - air supply air duct; 4211a - pressure increasing section; 4211b - air guide section; 4212 - return air duct; 422 - avoidance passage; 423 - air duct groove; 43 - air guide member; 431 - air distribution cavity; 432 - air hole; 433 - flange; 4331 - chamfer; 434 - bent part; 44 - air duct partition; 441 - fan mounting groove. ​

[0043] 100 - refrigeration system; 101 - compressor; 102 - condenser; 103 - evaporator. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be apparently and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without any creative work fall within the protection scope of the present application.

[0045] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0046] The terms "first", "second", "third", etc. are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0047] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Generally, the refrigerator has a structure similar to a cuboid, including a cabinet and a door body, the cabinet forms a storage chamber, the upper part of the storage chamber has an opening, and the opening is used to store or take out the goods in the storage chamber. The door body is connected with the cabinet through a hinge, and the door body can rotate relative to the cabinet. The door body can be opened or closed during the rotation process to open or close the upper opening of the storage chamber. The refrigerator also includes a refrigeration system, which includes a compressor, an evaporator, a condenser, an expansion valve and a refrigerant pipeline. The compressor, evaporator, condenser and expansion valve are connected through the refrigerant pipeline to form a closed loop. The refrigerator includes a direct cooling type refrigerator and an air cooling type refrigerator. The air cooling type refrigerator further includes an air duct assembly, and the air duct assembly forms an air supply for the storage chamber.

[0049] The refrigerator provided by the embodiment of the present application, referring to Figure 1 and Figure 2 , includes a cabinet 1, the cabinet 1 includes a bottom panel 11 and four side panels 12, the bottom panel 11 constitutes the bottom wall of the storage chamber, and the four side panels 12 are arranged along the circumference of the bottom panel 11 and are sequentially and detachably connected to form the side walls of the storage chamber. The bottom panel 11 is detachably connected with each side panel 12; a door body 2 is movably connected with the cabinet 1 and is used to open or close the upper opening of the storage chamber; referring to Figure 3 、 Figure 4 and Figure 5 , the refrigerator further includes a refrigeration system 100, which is installed on the cabinet 1 and includes a compressor 101, a condenser 102 and an evaporator 103.

[0050] The refrigerator provided by the embodiment of the present application, referring to Figure 1 and Figure 2 , the cabinet 1 is assembled by the detachable bottom panel 11 and side panels 12. When a part of the cabinet 1 is damaged and cannot be used, only the bottom panel 11 or the side panel 12 where the damaged part is located needs to be replaced, thereby enhancing the maintainability of the cabinet 1 and reducing the maintenance cost of the refrigerator. In the prior art, the cabinet is integrally foamed and formed, and the storage chamber is formed in the cabinet, which occupies a large space. Compared with the prior art, in the packaging and transportation process, the bottom panel 11 and the side panels 12 of the cabinet 1 are temporarily not assembled, the cabinet 1 does not form a storage chamber, and the volume is small. Therefore, the use amount of packaging materials required by the refrigerator can be reduced, and the packaging cost of the refrigerator can be reduced. At the same time, due to the small volume of the refrigerator, a larger number of refrigerators can be placed in the same space during transportation, thereby increasing the transportation efficiency and reducing the transportation cost.

[0051] In some embodiments, referring to Figure 1 and Figure 2The box body 1 has a structure similar to a cuboid, and the four side panels 12 are respectively a left panel 121, a right panel 122, a front panel 123 and a rear panel 124. The four side panels 12 are sequentially and detachably connected end to end, which means that the left panel 121 is arranged opposite to the right panel 122, and the front panel 123 is arranged opposite to the rear panel 124. The left end of the rear panel 124 is detachably connected to the rear end of the left panel 121, the front end of the left panel 121 is detachably connected to the left end of the front panel 123, the right end of the front panel 123 is detachably connected to the front end of the right panel 122, and the rear end of the right panel 122 is detachably connected to the right end of the rear panel 124. In some embodiments, the left panel 121 and the right panel 122 have the same structure, and the front panel 123 and the rear panel 124 have the same structure, so as to increase the degree of generalization of the side panels 12, thereby reducing the difficulty of manufacturing the side panels 12, simplifying the manufacturing process of the box body 1 and reducing the manufacturing cost of the refrigerator. Meanwhile, the assembly difficulty of the box body 1 can also be reduced.

[0052] In some embodiments, the side wall of one of the two side panels 12 is abutted against the inner wall of the other side panel 12, so as to increase the contact area between the two adjacent side panels 12 and prevent a gap from being generated between the two adjacent side panels 12. For example, referring to Figure 2 In this embodiment, the front side wall of the left panel 121 and the front side wall of the right panel 122 are both abutted against the inner wall of the front panel 123, and the rear side wall of the left panel 121 and the rear side wall of the right panel 122 are both abutted against the inner wall of the rear panel 124. For example, referring to Figure 2 Figure 6 The bottom panel 11 is located in the middle of the four side panels 12, the side wall of the bottom panel 11 is abutted against the inner wall of each side panel 12, and the bottom panel 11 is perpendicular to each side panel 12. Compared with arranging the bottom panel 11 at the bottom of the side panel 12, arranging the bottom panel 11 in the middle of the four side panels 12 can improve the stability of the box body 1.

[0053] It should be noted that, generally, in order to improve the heat preservation of the storage compartment and reduce the heat exchange between the storage compartment and the external space, the side panel 12 and the bottom panel 11 usually include an inner container and an outer shell arranged opposite to each other, the four edges of the inner container are bent away from the storage compartment to form a side frame perpendicular to the inner container, the outer shell is fixedly connected to the end of the side frame away from the inner container, and the outer shell and the inner container together enclose a foaming cavity, which is filled with foaming material to form a foaming layer. In this embodiment, the inner wall of the side panel 12 refers to the side wall of the side panel 12 close to the storage compartment, that is, the inner container of the side panel 12; and the side wall of the side panel 12 refers to the side wall perpendicular to the inner wall of the side panel 12, that is, the side frame of the side panel 12.

[0054] ​In some embodiments, two side panels 12 connected to each other, or one of the bottom panel 11 and the side panel 12 connected to each other is a first panel, and the other is a second panel, the first panel and the second panel are connected by the hanging device 3, that is, the side panel 12 and the side panel 12, and the side panel 12 and the bottom panel 11 are connected by the hanging device 3. In the embodiment of the application, the right panel 122 is taken as the first panel, and the rear panel 124 is taken as the second panel, and the side wall of the first panel abuts against the inner wall of the second panel. Referring to Figure 7 , Figure 8 and Figure 9 , the hanging device 3 comprises a hook 31 extending from the side wall of the first panel, and a fixed shaft 32 embedded in the second panel; wherein the extension direction of the fixed shaft 32 is parallel to the contact surface of the first panel and the second panel. If the hook 31 is arranged on the surface of the first panel, and the fixed shaft 32 is arranged on the surface of the second panel, a gap may be generated between the first panel and the second panel when the first panel and the second panel are assembled. Therefore, in the embodiment of the refrigerator of the application, the fixed shaft 32 is embedded in the interior of the second panel, and when the first panel and the second panel are assembled, the part of the hook 31 extending from the first panel extends into the interior of the second panel, and the hook 31 is hung on the fixed shaft 32; the hook 31 extends from the first panel, and the fixed shaft 32 is embedded in the second panel, which can prevent a gap between the two panels. It should be understood that the fixed shaft 32 can also be arranged on the first panel, and the hook 31 can be arranged on the second panel, which will not be described in detail in the embodiment of the application.

[0055] The extension direction of the fixed shaft 32 is parallel to the contact surface of the first panel and the second panel. When the hook 31 extends into the second panel and is hung on the fixed shaft 32, the hanging device 3 can limit the displacement of the first panel relative to the second panel in the direction perpendicular to the second panel. For example, referring to Figure 7 When the right panel 122 is connected to the rear panel 124 by the hanging device 3, the hanging device 3 can limit the displacement of the right panel 122 relative to the rear panel 124 in the direction perpendicular to the inner wall of the rear panel 124.

[0056] It should be noted that the first panel and the second panel can also be connected in other ways. For example, a right-angle connecting piece can be arranged at the corner of the two adjacent side panels 12, the right-angle connecting piece comprising a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate being respectively attached to the first panel and the second panel and being fixedly connected to the first panel and the second panel through a screwing structure. The screwing structure comprises connecting holes on the first connecting plate and the second connecting plate, threaded holes on the side panel 12 corresponding to the connecting holes, and connecting bolts. However, the above-mentioned screwing fixing mode has the following problems. On the one hand, the installation precision of the screwing structure is required to be high; on the other hand, if the right-angle connecting piece is arranged on the outer surface of the cabinet, the appearance of the cabinet will be affected, if the right-angle connecting piece is arranged on the inner surface of the cabinet, the assembly and installation of the cabinet will be inconvenient, and the accommodation space of the storage compartment will be occupied.

[0057] In some embodiments, in order to enhance the reliability of the connection between the first panel and the second panel and the stability of the cabinet 1, a plurality of hooking devices 3 are arranged on the contact surface of the first panel and the second panel. As shown in Figure 7 , the plurality of hooking devices 3 are uniformly distributed in the vertical direction on the contact surface of the right panel 122 and the rear panel 124.

[0058] In some embodiments, in order to improve the sealing performance of the storage compartment and prevent the contact surface of the first panel and the second panel from having a gap, the hook 31 is movably connected to the first panel, and the hooking device 3 further comprises a locking mechanism 33, when the hook 31 extends into the second panel and is hooked on the fixed shaft 32, the locking mechanism 33 can exert a tensioning force on the hook 31, the tensioning force being used to make the hook 31 slide away from the fixed shaft 32, so that the hook 31 can tension the fixed shaft 32. And when the hook 31 is hooked on the fixed shaft 32, there is a tension between the hook 31 and the fixed shaft 32, under the action of the tension, the side wall of the first panel can be pressed against the inner wall of the second panel, preventing a gap from occurring at the connection between the first panel and the second panel, thereby improving the sealing performance of the storage compartment.

[0059] In some embodiments, referring to Figure 10 and Figure 12 , the locking mechanism 33 comprises a cam 331, the cam 331 being rotatably connected to the first panel; referring to Figure 10 and Figure 14 , one end of the hook 31 is provided with a mounting hole 311, the mounting hole 311 being sleeved on the cam 331. Referring to Figure 16 and Figure 17When the hook 31 is hung on the fixed shaft 32 and the cam 331 is rotated, the cam 331 pushes the hook 31 to slide away from the fixed shaft 32, so that the hook 31 tightens the fixed shaft 32. When the hook 31 tightens the fixed shaft 32, the first panel can be pressed on the second panel, so that the gap on the contact surface of the first panel and the second panel is prevented, and the sealing performance of the storage room is improved. The locking mechanism 33 provided by the embodiment of the application has simple structure, and only needs to rotate the cam 331 to lock the hooking device 3, so that the operation is simple and convenient.

[0060] In some embodiments, the locking mechanism 33 further comprises a positioning structure 332. When the hook 31 tightens the fixed shaft 32 and the tension exists between the hook 31 and the fixed shaft 32, the positioning structure 332 is used to limit the reverse rotation of the cam 331. In the embodiment, the reverse rotation refers to the direction opposite to the rotation direction of the cam 331 when the hook 31 tightens the fixed shaft 32. Figure 15 Figure 16 When the hook 31 tightens the fixed shaft 32, the cam 331 is rotated, and the cam 331 applies a tension to the hook 31. The positioning structure 332 can prevent the reverse rotation of the cam 331 under the action of the reverse force of the tension. After the cam 331 is rotated to a certain angle, the cam 331 will not be reversed when it is released, so that the tension between the hook 31 and the fixed shaft 32 can be long-term and stable to tighten the first panel and the second panel. In the embodiment, the tension refers to the rightward pushing force applied by the cam 331 to the hook. Figure 17

[0061] In some embodiments, the cam 331 is provided with a positioning structure 332. When the hook 31 tightens the fixed shaft 32 and the tension exists between the hook 31 and the fixed shaft 32, the positioning structure 332 is used to limit the reverse rotation of the cam 331. In the embodiment, the reverse rotation refers to the direction opposite to the rotation direction of the cam 331 when the hook 31 tightens the fixed shaft 32. Figure 11 Figure 12 In some embodiments, the two sides of the cam 331 extend outward to form a rotating shaft 333, and the rotating shaft 333 is rotationally connected with the first panel. Figure 13 In the embodiment, the base circle radius of the cam 331 is R1, and the distance between the farthest point on the cam 331 from the rotation axis of the cam 331 and the rotation axis is L1. Figure 12 Figure 13 In the embodiment, the radius of the rotating shaft 333 is smaller than the base circle radius R1 of the cam 331. Figure 13 Figure 14 In the embodiment, along the axial direction of the mounting hole 311, the mounting hole 311 comprises a long hole section 3111 and a round hole section 3112. In the embodiment, the long hole section 3111 is sleeved on the outer side of the rotating shaft 333, the length of the long hole section 3111 is greater than the diameter of the rotating shaft 333, and the rotating shaft 333 can slide along the length direction of the long hole section 3111. Figure 15 Figure 16 ​​​​​​When the hook 31 is engaged with the fixed shaft 32, the length direction of the elongated section 3111 is perpendicular to the extension direction of the fixed shaft 32, so that the cam 331 can push the hook 31 to slide along a straight line perpendicular to the fixed shaft 32 away from the fixed shaft, thereby tightening the fixed shaft 32 with the hook 31. The circular section 3112 is fitted onto the outside of the cam 331, and the radius of the circular section 3112 is R2, where 2R2 < L1 + R1, and R2 < L1. (Refer to...) Figure 15 Since 2R2 < L1 + R1, the cam 331 structure can be smoothly installed into the circular hole section 3112. (Refer to...) Figure 15 and Figure 16 When cam 331 is rotated clockwise, since R2 < L1, cam 331 can fit against the inner wall of the circular hole section 3112 and move away from the fixed shaft 32. Figure 15 Pushing the hook 31 from the center to the left moves the hook 31 away from the fixed shaft 32, causing the inner wall of the hook 31 to fit against the outer wall of the fixed shaft 32. Continuing to rotate the cam 331 provides a tensioning force to the hook 31, causing it to slide away from the fixed shaft 32. Under this tensioning force, the side wall of the first panel is pressed against the inner wall of the second panel, preventing gaps between the first and second panels and thus improving the airtightness of the storage compartment.

[0062] In some embodiments, refer to Figure 12 and Figure 13 The positioning structure 332 includes multiple ratchet teeth 3321 located on the outer wall of the cam 331, as shown in the figure. Figure 14 and Figure 15 And a tenon 3322 located on the inner wall of the circular hole section 3112 that matches the ratchet groove. Multiple ratchet teeth 3321 are evenly distributed along the circumference of the cam 331, with a ratchet groove formed between each pair of adjacent ratchet teeth 3321. (See reference...) Figure 16 and Figure 17 When the hook 31 tightens the fixing shaft 32, and the tenon 3322 engages in one of the ratchet grooves, the positioning structure 332 can prevent the cam 331 from rotating in the opposite direction without applying external force to the cam 331. To facilitate the disassembly of the first panel and the second panel, when a reverse torque is applied to the cam 331 and the reverse torque reaches a certain threshold, the tenon 3322 can slide out of the ratchet groove. This reverse torque threshold can prevent the tenon 3322 from disengaging from the ratchet groove, ensuring that the hook 31 can tighten the fixing shaft 32.

[0063] When a positive torque is applied to the cam 331, the tenon 3322 can slide into an adjacent ratchet slot in the reverse direction (counterclockwise) from a ratchet slot. When no torque is applied to the cam 331 and the tenon 3322 is located in one of the ratchet slots, the positioning structure 332 can prevent the cam 331 from rotating. When a reverse torque is applied to the cam 331 and the reverse torque reaches a certain threshold, the tenon 3322 can slide into an adjacent ratchet slot in the forward direction (clockwise) from a ratchet slot, facilitating the disassembly of the hooking device 3.

[0064] In some embodiments, when a reverse torque is applied to the cam 331, in order to facilitate the tenon 3322 to smoothly slide out of the ratchet slot, with reference to Figure 14 and Figure 15 , the surface of the tenon 3322 is a smooth curve, and when the cam 331 is rotated, the tenon 3322 can slide into an adjacent ratchet slot in the forward direction from a ratchet slot. Further, with reference to Figure 12 and Figure 13 , in order to facilitate the tenon 3322 to smoothly slide out of the ratchet slot, the surface of the ratchet 3321 is a smooth curve.

[0065] The refrigerator provided by the embodiments of the present application, in order to facilitate the connection of the hook 31 and the first panel, with reference to Figure 11 and Figure 18 , the hooking device 3 further comprises a first mounting seat 34, the first mounting seat 34 is fixedly connected with the first panel, and the hook 31 is connected and fixed with the first panel through the first mounting seat 34; in order to facilitate the connection of the fixed shaft 32 and the second panel, Figure 11 and Figure 19 , the hooking device 3 further comprises a second mounting seat 35, the second mounting seat 35 is embedded in the foamed layer of the second panel, the second mounting seat 35 is provided with a second mounting groove 351, the fixed shaft 32 is located in the second mounting groove 351, and the fixed shaft 32 is fixedly connected with the second mounting seat 351. The second mounting groove 351 can prevent the foaming material from covering the fixed shaft 32 when the second panel is foamed, and the second mounting groove 351 can further form a cavity near the fixed shaft 32, facilitating the hook 31 to extend into the second panel and be hooked with the fixed shaft 32.

[0066] In some embodiments, with reference to Figure 10 and Figure 11The first mounting seat 34 is embedded in the foamed layer of the first panel, the first mounting seat 34 is provided with a first mounting groove 341, the hook 31 is rotationally connected in the first mounting groove 341, further, the hook 31 can be rotated to be accommodated in the first mounting groove 341 or extended out of the first mounting groove 341. Before the box body 1 is assembled, the hook 31 is rotated to be accommodated in the first mounting groove 341, on the one hand, the volume of the first panel can be reduced, on the other hand, the hook 31 can be prevented from being hooked to other objects, the packaging and transportation of the bottom panel 11 and the side panel 12 are facilitated. When the box body 1 is assembled, the side wall of the first panel is abutted against the inner wall of the second panel, the opening of the first mounting groove 341 is opposite to the opening of the second mounting groove 351, then a positive torque is applied to the rotating shaft 333, the rotating shaft 333 is rotated, the hook 31 is driven to rotate by the cam 331, the hook 31 is extended out of the first mounting groove 341, is rotated to be accommodated in the second mounting groove 351 and is hung on the fixed shaft 32.

[0067] In order to facilitate the hook 31 to extend into the second panel and be hung on the fixed shaft 32, a cavity is arranged around the fixed shaft 32 of the second mounting groove 351. In order to prevent the hook 31 from shaking in the cavity after being hung on the fixed shaft 32, refer to Figure 10 and Figure 11 The limiting structure 36 is arranged between the first panel and the second panel, the limiting structure 36 is used for limiting the displacement of the first panel relative to the second panel in the direction parallel to the inner wall of the second panel. The hooking device and the limiting structure 36 are cooperated to connect and fix the first panel and the second panel, the assembly of the box body 1 is facilitated.

[0068] In some embodiments, refer to Figure 10 and Figure 11 The limiting structure 36 includes a limiting groove 362 arranged on the first mounting seat 34 close to the side wall of the second panel and a limiting protrusion 361 arranged on the second mounting seat 35 corresponding to the limiting groove 362. When the first panel is connected with the second panel, the limiting protrusion 361 extends into the limiting groove 362, the limiting protrusion 361 and the limiting groove 362 are cooperated to limit the displacement of the first panel in the direction parallel to the second panel. The bottom panel 11 and the side panel 12 are usually formed by foaming, the volume is large, if the limiting structure 36 is directly arranged on the bottom panel 11 and the side panel 12, the position precision of the limiting structure 36 is required to be high, the manufacturing difficulty is large, compared with the limiting structure 36 directly arranged on the first panel and the second panel, the limiting structure 36 is arranged on the first mounting seat 34 and the second mounting seat 35 in the embodiments of the present application, the structure is simple and the installation is convenient. It should be understood that the limiting protrusion 361 can be arranged on the first mounting seat 34 close to the side wall of the second panel and the limiting groove 362 can be arranged on the second mounting seat 35 close to the side wall of the first panel.

[0069] When the limiting protrusion 361 is matched with the limiting recess 362, the opening of the first mounting groove 341 is opposite to the opening of the second mounting groove 351, and when the hook 31 is rotated, the hook 31 can be rotated out of the first mounting groove 341 and hung on the fixed shaft 32. When the box body 1 is assembled, the relative positions of the first and second spliced plates are first determined by the limiting structure 36, and then the cam 331 is rotated to drive the hook 31 to rotate and then be hung on the fixed shaft 32, so that the assembly speed of the box body 1 can be improved.

[0070] In the embodiment of the present application, referring to Figure 10 and Figure 11 , the limiting structure 36 comprises a limiting protrusion 361 on the second mounting seat 35 and a limiting recess 362 on the first mounting seat 34. The limiting protrusion 361 is an annular flange protruding outward along the circumference of the second mounting groove 351, and the limiting recess 362 is an annular recess recessed inward along the circumference of the first mounting groove 341. When the limiting protrusion 361 is inserted into the limiting recess 362, the opening of the first mounting groove 341 is opposite to the opening of the second mounting groove 351. Further, the limiting protrusion 361 is inclined, and the outer end of the limiting protrusion 361 is inclined towards the second mounting groove 351; the side wall of the limiting recess 362 is inclined, and the outer end of the limiting recess 362 is inclined away from the first mounting groove 341. Because the limiting protrusion 361 and the limiting recess 362 are inclined, the limiting structure 36 also has a guiding effect. Even if there is a certain positional deviation between the limiting protrusion 361 and the limiting recess 362, the limiting protrusion 361 can still be easily inserted into the limiting recess 362. Compared with the form that the limiting protrusion 361 and the limiting recess 362 are perpendicular to the outer side wall of the first mounting seat 34 and / or the second mounting seat 35, in the embodiment, the limiting protrusion 361 and the limiting recess 362 are inclined, which can make the hooking device 3 adapt to larger manufacturing and installation errors, reduce the manufacturing difficulty of the hooking device 3, and reduce the cost of product control.

[0071] It should be noted that the outer end of the limiting protrusion 361 refers to the end of the limiting protrusion 361 close to the first mounting seat 34, that is, Figure 11 the right end of the limiting protrusion 361; and the outer end of the limiting recess 362 refers to the end of the limiting recess 362 close to the second mounting seat 35, that is, Figure 11 the left end of the limiting recess 362.

[0072] In some embodiments, referring to Figure 11 , the cam 331 is arranged inside the first mounting groove 341, and the two ends of the rotating shaft 333 are rotationally connected with the first mounting seat 34. In order to facilitate the rotation of the rotating shaft 333 and then drive the cam 331 to rotate, in some embodiments, as shown inFigure 18 As shown, the first mounting groove 341 is provided with two rotating shaft holes 342 on the opposite two side walls, the two ends of the rotating shaft 333 are respectively located in the two rotating shaft holes 342, and the rotating shaft 333 can rotate relative to the rotating shaft hole 342. At least one end of the rotating shaft 333 is provided with an operating part 3331, and the rotating shaft 333 can be rotated by operating the operating part 3331, thereby driving the cam 331 to rotate. The rotating shaft hole 342 is a through hole provided on the first mounting seat 34, and the operating part 3331 can be operated through the rotating shaft hole 342, thereby operating the hook 31.

[0073] In some embodiments, the operating part 3331 can be a knob extending out of the side wall of the first mounting seat 34, and rotating the knob can drive the rotating shaft 333 to rotate, thereby controlling the rotation of the hook 31, or, with reference to Figure 11 , the operating part 3331 can be an internal hexagonal recess provided at the end of the rotating shaft 333, the internal hexagonal recess extends along the axial direction of the rotating shaft 333, and a hexagonal wrench can be inserted into the internal hexagonal recess, thereby driving the rotating shaft 333 to rotate.

[0074] Generally, in order to facilitate the manufacturing of the bottom panel 11 and the side panel 12, when the hooking device 3 is manufactured, the first mounting seat 34, the hook 31 and the cam 331 are assembled to form a hook assembly 3a; the second mounting seat 35 and the fixed shaft 32 are assembled to form a fixed shaft assembly 3b. The side panel 12 or the bottom panel 11 is foamed, and when the side panel 12 or the bottom panel 11 is foamed, the hook assembly 3a and / or the fixed shaft assembly 3b is installed in the foaming cavity of the side panel 12 or the bottom panel 11, and then the side panel 12 or the bottom panel 11 is foamed. During foaming, the foaming material can firmly fix the first mounting seat 34 and the second mounting seat 35 in the foaming layer. Since there is a pressing force between the first panel and the second panel after the box body 1 is assembled, if the outer surface of the first mounting seat 34 and the second mounting seat 35 is a smooth surface, the first mounting seat 34 and the second mounting seat 35 are easy to be pulled out from the foaming layer, which affects the stability and reliability of the connection of the box body 1. Therefore, in some embodiments, with reference to Figure 17 and Figure 18 , an anti-slip structure 37 is arranged on the outer surface of the first mounting seat 34 and the second mounting seat 35, and the anti-slip structure 37 is used to prevent the first mounting seat 34 and the second mounting seat 35 from sliding out of the foaming layer of the side panel 12 or the bottom panel 11.

[0075] According to the force analysis of the hooking device 3, the first mounting seat 34 and the second mounting seat 35 are subjected to force along the extension direction of the hook 31; during the process of the hook 31 from the hooking state to the tensioning state, the hook 31 exerts a force on the fixed shaft 32 along the radial direction of the fixed shaft 32. Therefore, in some embodiments, as Figure 18As shown, the first anti-skid structure 371 on the first mounting seat 34 includes a plurality of anti-skid ribs extending in the vertical direction and perpendicular to the outer surface of the first mounting seat 34, and a plurality of anti-skid ribs extending in the horizontal direction and perpendicular to the outer surface of the first mounting seat 34. Referring to Figure 19 , the second anti-skid structure 372 on the second mounting seat 35 includes a plurality of anti-skid ribs extending in the radial direction of the fixing shaft 32 and perpendicular to the outer surface of the second mounting seat 35, and at least one anti-skid rib extending in the vertical direction.

[0076] It should be understood that the first anti-skid structure 371 and the second anti-skid structure 372 can have many structures and forms, and the embodiment of the present application only provides one specific form of the first anti-skid structure 371 and the second anti-skid structure 372. The first anti-skid structure 371 and the second anti-skid structure 372 can also be provided in other forms as long as they can reliably fix the first mounting seat 34 and the second mounting seat 35 in the bottom panel 11 or the side panel 12. For example, the first anti-skid structure 371 can also be irregular corrugations on the outer surface of the first mounting seat 34.

[0077] In some embodiments, in order to facilitate the installation and fixation of the hook 31, the locking mechanism 33 and the first mounting seat 34, as shown, Figure 18 , the first mounting seat 34 has a split structure, and the first mounting seat 34 includes two sub-mounting seats 34a, which are combined into the first mounting seat 34 along the axial direction of the rotating shaft 333. The two sub-mounting seats 34a are fixedly connected by bolts.

[0078] The refrigerator of the embodiment of the present application, referring to Figure 2 , Figure 3 and Figure 4 , the refrigeration system 100 includes a compressor 101, a condenser 102 and an evaporator 103, and the compressor 101, the condenser 102 and the evaporator 103 are connected in sequence through refrigerant pipelines to form a closed loop. In some embodiments, referring to Figure 6 , the bottom panel 11 is located above the lower edge of the side panel 12, and an installation space is formed between the bottom panel 11 and the lower edge of the side panel 12; the refrigeration system 100 is located in the installation space.

[0079] In some embodiments, the refrigeration system 100 is fixedly connected with the bottom panel 11, the lower end surface of the refrigeration system 100 is higher than the lower side edge of the side panel 12, and the refrigeration system 100 has a clearance from the ground. In the embodiment of the present application, the height of the bottom panel 11 is higher than the lower side edge of the side panel 12, and the refrigerator is supported on the bottom surface through the bottom of the side panel 12. The installation space is formed between the bottom panel 11 and the lower edge of the side panel 12, the refrigeration system 100 is installed in the installation space, and the refrigeration system 100 is installed on the cabinet 1 through the bottom panel 11, and the refrigeration system 100 has a clearance from the ground. Compared with the prior art, the refrigerator of the embodiment of the present application suspends the refrigeration system 100 below the bottom panel, when the refrigerator is refrigerating, the vibration generated by the compressor 101 is transmitted to the cabinet 1 through the bottom panel 11, because the cabinet 1 has a large weight and a large inertia, the vibration will not cause the cabinet 1 to vibrate obviously, and the bottom of the side panel 12 will not collide with the ground; and because the refrigeration system 100 has a clearance from the ground, the lower end surface of the refrigeration system 100 will not collide with the ground, thereby reducing the noise generated by the refrigerator and improving the user experience.

[0080] The refrigerator of the embodiment of the present application is described with reference to Figure 3 、 Figure 4 and Figure 5 The refrigeration system 100 is fixedly connected with the bottom panel 11 through the suspension structure 13. The suspension structure 13 includes a supporting plate 131 and a hanging rod 132, the supporting plate 131 is located below the compressor 101 and the condenser 102 and is used for installing the compressor 101 and the condenser 102, one end of the hanging rod 132 is fixedly connected with the bottom panel 11, and the other end is fixedly connected with the supporting plate 131. In some embodiments, the hanging rod 132 is fixedly welded with the supporting plate 131, then the compressor 101 and the condenser 102 are fixed on the supporting plate 131 to form an integral whole, and then the integral whole is hung on the lower side wall of the bottom panel 11 through the hanging rod 132. The hanging rod 132 can swing within a certain range in the horizontal direction, can balance the vibration of the compressor 101 in the horizontal direction, and thereby reduces the noise of the refrigerator as a whole.

[0081] It should be noted that the supporting plate 131 can be a solid plate or a frame structure. When the supporting plate 131 is a frame structure, a base corresponding to the supporting plate is arranged on the lower side of the compressor 101 and the condenser 102, and the mounting seat is fixedly connected with the supporting plate 131. This way can save the material consumed by the supporting plate 131, reduce the weight of the suspension structure 13, and reduce the manufacturing cost of the refrigerator.

[0082] In some embodiments, with reference to Figure 5The hanger 132 is made of angle steel. The angle steel has sufficient tensile strength and small weight, so that the overall weight of the refrigerator is reduced. In addition, the supporting plate 131 can be lapped on the side wall of the angle steel, so that the connection and fixation of the supporting plate 131 and the hanger 132 are facilitated. It should be understood that the hanger 132 can also be made of other materials or other section steels, for example, the hanger 132 can also be made of square steel or cylindrical steel.

[0083] In some embodiments, the bottom of the side panel 12 is provided with a supporting leg or a caster, and the refrigerator is supported on the bottom surface by the supporting leg or the caster. The refrigerator is supported by the supporting leg or the caster, so that the contact area of the refrigerator with the ground is reduced, and the requirement for the flatness of the lower end surface of the cabinet 1 is lowered, thereby preventing the refrigerator from being unstable due to the unevenness of the ground or the lower end surface of the side panel 12.

[0084] In some embodiments, referring to Figure 4 , Figure 20 and Figure 21 , the air duct assembly 4 includes a centrifugal fan 41 and an air duct plate 42, the air duct plate 42 forms an air duct 421, the centrifugal fan 41 is located in the air duct 421, and the air duct 421 is used to send air into the storage compartment. Referring to Figure 3 and Figure 4 , the refrigeration system 100 and the bottom panel 11 have a space therebetween, and the air duct assembly 4 is installed in the space between the refrigeration system 100 and the bottom panel 11. In the prior art, the air duct assembly and the evaporator are usually installed in the storage compartment. Compared with the prior art, the refrigerator of the embodiment of the present application sets the air duct assembly 4 outside the storage compartment, so that the space occupied by the air duct assembly 4 in the storage compartment is reduced, the use space of the storage compartment is increased under the condition that the volume of the refrigerator is unchanged, and the user experience is improved.

[0085] Referring to Figure 4 , since the air duct plate 42 is located between the refrigeration system 100 and the bottom panel 11, the hanger 132 needs to pass through the air duct plate 42 to be connected and fixed with the bottom panel 11. Therefore, the refrigerator provided by the embodiment of the present application has, as described in Figure 21 and Figure 22 , an avoiding passage 422 at the position corresponding to the hanger 132, and the hanger 132 passes through the avoiding passage 422 from the side of the air duct plate 42 away from the bottom panel 11 to be fixedly connected with the bottom panel 11.

[0086] In order to save the use amount of packaging materials of the refrigerator and improve the transportation efficiency of the refrigerator, the refrigerator needs to be transported and sold in an unassembled state, and then assembled by the staff of the store or the user. In the embodiment of the present application, referring to Figure 2 and Figure 3The bottom plate 11, the refrigeration system 100 and the air duct assembly 4 are modularly designed and manufactured to form a unit module, so that all the assembly components of the cabinet 1 are modularly structured, the installation difficulty of the cabinet 1 can be reduced, and the operation is simple and convenient whether the user assembles at home or the staff of a store assembles before selling.

[0087] In some embodiments, with reference to Figure 22 , the air supply air duct 4211 is composed of a pressurization section 4211a and a flow guide section 4211b, the pressurization section 4211a is arranged close to the centrifugal fan 41, and the air duct curve of the pressurization section 4211a is an Archimedes spiral. After the airflow is thrown out by the centrifugal fan 41, it has very high kinetic energy, and when the airflow passes through the pressurization section 4211a, part of the kinetic energy of the airflow can be converted into pressure energy, thereby increasing the air pressure of the airflow. After the air pressure is increased, the flow speed of the airflow can be increased, thereby increasing the conveying distance of the airflow, increasing the wind field efficiency in the storage compartment, and improving the refrigeration performance of the refrigerator.

[0088] In some embodiments, a plurality of air supply openings in communication with the air supply air duct 4211 and a plurality of return air openings in communication with the return air duct 4212 are arranged in the storage compartment. The air supply openings are arranged in a staggered manner. The plurality of air supply openings can make the airflow sent by the air supply air duct 4211 circulate to each position in the storage compartment, avoiding the problem of too small local air volume or no airflow in the storage compartment. The air supply openings arranged in a staggered manner can increase the disturbance of the airflow in the storage compartment, improve the penetration ability of the airflow in the storage compartment, and increase the heat exchange time of the airflow in the storage compartment, thereby improving the refrigeration efficiency of the refrigerator.

[0089] In some embodiments, with reference to Figure 6 and Figure 22 , the number of air supply openings is two, and the two air supply openings are located at two adjacent corners of the storage compartment; each air supply opening extends in a vertical direction and blows air towards the center line of the storage compartment; the center line of the storage compartment refers to the line connecting the centers of the horizontal cross sections of the storage compartment. The air supply openings extend in the vertical direction, which can increase the span of the air supply openings in the storage compartment, ensuring that the airflow can cover all areas of the storage compartment from top to bottom. On the premise of ensuring that the airflow can be sent to each position in the storage compartment, the number of air supply openings is reduced, the airflow is not divided into multiple streams, the air volume loss of the airflow in the air supply air duct 4211 is reduced, the air volume sent into the storage compartment is increased, the flow speed of the airflow is increased, the heat exchange efficiency of the refrigerator is improved, and the refrigeration speed of the refrigerator is increased. Figure 25, two air outlets are located at two adjacent corners of the storage chamber, and each air outlet blows air towards the center line of the storage chamber; the two air flows can be avoided from blowing against each other, and the two air flows can form a vortex in the storage chamber, so that the air flow can flow to each position of the horizontal section of the storage chamber. Moreover, the spiral air field formed by the vortex has high heat exchange efficiency, strong penetration ability, and a large action area, which is beneficial to improve the refrigeration efficiency of the refrigerator.

[0090] In some embodiments, with reference to Figure 22 , the number of air supply air ducts 4211 is two, and the two air supply air ducts 4211 are in one-to-one correspondence with the two air supply outlets. One of the air supply air ducts 4211 has a length greater than that of the other air supply air duct 4211. With reference to Figure 24 , when the refrigerator starts to supply air for refrigeration, the two air flows with the same speed emitted from the centrifugal fan 41 pass through the air supply air ducts 4211 with different lengths, and then the two air flows are blown out from the two air outlets in sequence. The two air flows intersect with each other in the storage chamber. One of the air flows has a short path and reaches the center of the storage chamber first. The other air flow has a long path and reaches the center of the storage chamber later. The air flow that reaches later is deviated by the air flow that reaches earlier and forms a first vortex 01 on the side due to the viscosity of air. Finally, a spiral air field is formed under the action of the continuous air flow. When the air flow forms a stable spiral air field, as shown in Figure 25 , the two air flows intersect with each other to form a closed triangular area, and external air cannot be supplemented into the area. Due to the viscosity of air, two second vortices 02 are formed. The spiral air field formed by the vortices has high heat exchange efficiency, strong penetration ability, and a large action area, which is beneficial to improve the refrigeration efficiency of the refrigerator.

[0091] For example, with reference to Figure 22 , the length of the upper air supply air duct 4211 is greater than that of the lower air supply air duct 4211. With reference to Figure 25 , the upper air supply outlet is in communication with the air supply air duct 4211 with a shorter length, the lower air supply outlet is in communication with the air supply air duct 4211 with a longer length, and the first vortex 01 is formed below the center of the storage chamber.

[0092] In some embodiments, with reference to Figure 22 and Figure 23 , the number of return air ducts 4212 is two, and the storage chamber is provided with two return air outlets in one-to-one correspondence with the two return air ducts. The two return air outlets are located at the other two adjacent corners of the storage chamber.

[0093] In some embodiments, the evaporator 103 is located in the air duct 421, and the evaporator 103 is located on the side of the centrifugal fan 41 close to the return air duct 4212, and the contact area between the return air duct 4212 and the evaporator 103 is greater than the cross-sectional area of the guide section 4211b. The evaporator 103 is located close to the centrifugal fan 41, and the evaporator 103 is located on the side of the centrifugal fan 41 close to the return air duct 4212, and the contact area between the return air duct 4212 and the evaporator 103 is greater than the cross-sectional area of the guide section 4211b, so that the speed of the airflow flowing through the evaporator 103 is less than the speed of the airflow flowing through the guide section 4211b, reducing the airflow speed in the return air duct 4212, increasing the heat exchange time between the airflow and the evaporator 103, making the airflow and the evaporator 103 more fully heat exchanged, and improving the refrigeration efficiency of the refrigerator.

[0094] In some embodiments, the air duct plate 42 is recessed inward to form an air duct groove 423 close to the surface of the bottom panel 11, the air duct plate 42 abuts against the bottom wall of the bottom panel 11, and the air duct groove 423 and the bottom panel 11 form an air duct. Compared with arranging the air duct 421 inside the air duct plate 42, in this embodiment, the air duct groove 423 is arranged on the upper surface of the air duct plate 42, and the air duct groove 423 and the bottom panel 11 form the air duct 421, which is simple and convenient to manufacture, and has low cost. In this embodiment, the number of air duct plates 42 is one, and the return air duct 4212 and the supply air duct 4211 are located on the same air duct plate 42. The return air duct 4212 and the supply air duct 4211 are both formed on the same air duct plate 42 at one time, so that the air duct 421 is smooth and neat, avoiding the possibility of joint gaps or other connection structures that may cause resistance to airflow in the air duct 421, reducing the friction of the airflow in the air duct 421, and reducing the loss of the airflow in the air duct 421.

[0095] In some embodiments, the return air duct 4212 and the supply air duct 4211 are formed on the same air duct plate 42, in order to prevent the airflow in the return air duct 4212 from not passing through the heat exchange of the evaporator 103 and directly entering the supply air duct 4211 through the acceleration of the centrifugal fan 41. Referring to Figure 20In the embodiment, the air duct assembly 4 further comprises an air duct partition plate 44, which is installed on the air duct plate 42 and separates the air duct 421 into a supply air duct 4211 and a return air duct 4212. The air duct partition plate 44 is provided with a fan mounting groove 441, and the centrifugal fan 41 is located in the fan mounting groove 441. The bottom of the fan mounting groove 441 is provided with a passage in communication with the return air duct 4212, and the evaporator 103 is arranged at the communication position of the passage and the return air duct 4212. The fan mounting groove 441 is in communication with the supply air duct 4211. During the operation of the refrigerator, the airflow in the return air duct 4212 passes through the evaporator 103, enters the above-mentioned passage from the communication position of the supply air duct 4211 and the passage, and then flows to the bottom of the fan mounting groove 441. After being accelerated by the centrifugal fan 41, the airflow is sent into the storage compartment through the supply air duct 4211 and the air outlet. After the airflow exchanges heat in the storage compartment and its temperature decreases, the airflow flows back into the return air duct 4212, thereby completing the air circulation process of the refrigerator.

[0096] In some embodiments, with reference to Figure 6 and Figure 26 , the air outlet and the air return port are both long slit type openings extending in the vertical direction. The air flow of different regions can be adjusted according to the pressure difference resistance at the air outlet, thereby reducing the probability of the air outlet and the air return port being blocked. For example, when there are more articles stored on one side of the middle section of the air outlet close to the storage compartment, resulting in a larger airflow resistance at this position, the airflow of the middle section of the air outlet is reduced, and the airflow of the upper and lower ends of the air outlet is increased. Under the premise of the same air volume, the long slit type air outlet can increase the flow speed of the airflow, increase the air supply distance of the cold air, avoid dividing the airflow into multiple streams, reduce the air resistance, and improve the air circulation efficiency of the refrigerator.

[0097] In some embodiments, the air duct plate 42 and the air duct 421 are both located below the bottom panel 11. In order to enable the airflow in the supply air duct 4211 to be sent into the storage compartment and enable the airflow after heat exchange to flow back into the return air duct 4212, with reference to Figure 6 and Figure 26 , the air-cooled assembly 2 further comprises a plurality of air guide members 43 located in the storage compartment. The air guide members 43 are fixedly connected to the cabinet 1. With reference to Figure 23 and Figure 27 , the air guide members 43 are formed with air distribution cavities 431 in communication with the air duct 421. The plurality of air guide members 43 correspond to the supply air duct 4211 and the return air duct 4212 one by one and are in communication with the supply air duct 4211 or the return air duct 4212. With reference to Figure 6 、 Figure 26 and Figure 27The air guide 43 extends in the vertical direction in the storage chamber, and the air guide 43 has an air distribution cavity 431 in communication with the air duct 41. The air inlet and the air return are both long slot air vents 432 provided on the air guide 43 and in communication with the air distribution cavity 431. The air vent 432 on the air guide 43 in communication with the air supply duct 4211 is configured as an air supply port of the air supply duct 4211, and the air vent 432 on the air guide 43 in communication with the air return duct 4212 is configured as an air return port of the air supply duct 4212.

[0098] With reference to Figure 26 and Figure 27 , in order to further prevent the air vent 432 from being blocked by the objects in the storage chamber, the two sides of the air vent 432 are protruded to form flanges 433 in the direction of the storage chamber along the extension direction of the air vent 432. When the objects are stored in the storage chamber, the objects can be blocked by the flanges 433 away from the air vent 432, preventing the objects from blocking the air vent 432.

[0099] In some embodiments, with reference to Figure 27 and Figure 28 , the end of the flange 433 close to the storage chamber is provided with a chamfer 4331 to prevent the user from being scratched when accessing the objects, and at the same time, the objects stored in the storage chamber can be prevented from being torn by the flange 433.

[0100] In some embodiments, with reference to Figure 23 , the air guide 43 is located at the corner of the storage chamber, which can make the air flow of the air supply duct 4211 flow to each position of the storage chamber, and then flow out of the storage chamber through the air return duct 4212 after sufficient heat exchange, avoiding the problem of too small air volume or no air flow in the local storage chamber. In order to make the structure of the refrigerator more compact and not occupy too much space of the storage chamber, the air guide 43 abuts against the two side walls adjacent to the storage chamber.

[0101] In some embodiments, with reference to Figure 27 and Figure 28 , the air guide 43 and the two side walls adjacent to the storage chamber jointly enclose the air distribution cavity 431; the horizontal section of the air distribution cavity 431 is L-shaped, and the air vent 432 is located at the corner of the air distribution cavity 431. The air guide 43 is formed by bending the plate material, and the part of the air guide 43 close to the side wall of the storage chamber has a larger gap, which can save the manufacturing material of the air guide 43 and reduce the manufacturing cost of the air guide 43.

[0102] With reference to Figure 28 , the side edge of the air guide 43 abutting against the side wall of the storage chamber is bent to form a bending part 434, and the bending part 434 is attached to the two side panels 12 adjacent to the cabinet 1. By increasing the contact area of the air guide 43 and the side wall of the storage chamber, the sealing property between the air guide 43 and the side wall of the storage chamber is ensured, preventing the air flow in the air distribution cavity 431 from flowing into the storage chamber from the abutting place of the air guide 43 and the storage chamber.

[0103] It should be noted that, further, in order to increase the sealing of the air guide 43 and the storage chamber, in some embodiments, the air guide 43 and the storage chamber side wall are fixed by flexible adhesive with a certain thickness, for example, the air guide 43 and the storage chamber side wall are fixed by foam double-sided tape. When the air guide 43 is made, one side of the foam double-sided tape can be adhered to the outer side wall of the bending part 434 of the air guide 43, and a protective film is arranged on the side of the foam double-sided tape away from the bending part 434. When the cabinet 1 is assembled, only the protective film needs to be removed to adhere the air guide 43 to the side wall of the storage chamber. The air guide 43 can also be fixed to the cabinet 1 by other fixing structures, which will not be listed one by one here.

[0104] In some embodiments, referring to Figure 29 , the air guide 43 itself surrounds the air distribution cavity 431, and the horizontal cross section of the air distribution cavity 431 is L-shaped, and the air hole 432 is located at the corner of the air distribution cavity 431. Compared with the air guide 43 and the side wall of the storage chamber jointly surrounding the air distribution cavity 431, in this embodiment, since the air guide 43 itself surrounds the air distribution cavity 431, the air guide 43 does not need to consider the sealing of the air guide 43 and the side wall of the storage chamber when it is installed, which is simple and convenient to install.

[0105] Referring to Figure 6 and Figure 23 , the number of air guides 43 is four, and the four air guides 43 are located at the four corners of the storage chamber. When the horizontal cross section of the storage chamber is rectangular, two air guides 43 connected with two air supply ducts 4211 are located at two corners of the storage chamber that are close to each other. In some embodiments, the four air guides 43 in the storage chamber are the same structure and can be arbitrarily interchanged, which reduces the assembly difficulty of the cabinet 1 and improves the assembly efficiency; at the same time, it can improve the generalization degree of the air guide 43, without the need to design and manufacture air guides 43 of different specifications, thereby reducing the manufacturing cost of the air guide 43.

[0106] In some embodiments, referring to Figure 1 , Figure 2 and Figure 30 , the refrigerator further comprises a cabinet frame 14, the cabinet frame 14 is arranged along the circumference of the opening of the cabinet 1, and the cabinet frame 14 is provided with a slot close to one side of the cabinet 1, and the cabinet frame is buckled on the top of the cabinet 1; wherein the top of the side panel 12 is inserted into the slot. Since the side wall of the cabinet 1 is formed by four side panels 12, there is a joint seam on the end face where the opening of the cabinet 1 is located, and the cabinet frame 14 is arranged on the cabinet 1, which not only improves the flatness of the above-mentioned end face, facilitating the door body 2 to close the storage chamber, but also shields the joint seam and improves the appearance of the cabinet 1.

[0107] In some embodiments, the cross section of the slot is a C-shaped slot structure, the box frame 14 is made of elastic material, and the width of the slot is slightly smaller than the thickness of the side panel 12. The box frame 14 clamps the side panel 12 between the two opposite side walls of the slot. No additional connecting member is needed to fixedly connect the box frame 14 and the side panel 12. The structure is simple and convenient to install.

[0108] It should be noted that, in some embodiments, the air duct 421 formed by the air duct plate 42 is located on the side of the bottom panel 11 away from the storage compartment 101, and the air guide member 43 is located in the storage compartment 101. In order to facilitate the air distribution cavity 431 of the air guide member 43 to communicate with the air duct, in some embodiments, referring to Figure 4 A ventilation opening 111 matching the end of the air guide member 43 is formed on the bottom panel 11. Each air supply air duct 4211 and each return air duct 4212 respectively communicates with the storage compartment 101 through a ventilation opening 111.

[0109] In some embodiments, referring to Figure 30 The corner of the box frame 14 is provided with a fixing groove 141 corresponding to the air guide member 43. The fixing groove 141 is located in the storage compartment 101 and is used to fix the air guide member 43. The fixing groove 141 is buckled on the top of the air guide member 43. The lower end of the air guide member 43 extends into the ventilation opening 111 on the bottom panel 11 and is inserted with the bottom of the cabinet 1. The upper end is inserted with the cabinet through the fixing groove 141 of the box frame 14. The air guide member 43 is convenient to install.

[0110] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0111] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical range disclosed by the present application can be easily thought by those skilled in the art, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A refrigerator characterized by, include: The container includes a bottom panel and four side panels, which together form a storage compartment. The bottom panel forms the bottom wall of the storage room. Multiple side panels are arranged around the circumference of the bottom panel, and the multiple side panels are detachably connected end to end to form the side walls of the storage room. The bottom panel and each side panel are detachably connected. Among them, two side panels that are connected to each other, or one of the bottom panel and the side panel that are connected to each other, is a first panel and the other is a second panel. The door is movably connected to the box body and is used to open or close the upper opening of the storage room; The sidewall of the first panel abuts against the inner wall of the second panel, and the first panel and the second panel are connected by a hanging device; the hanging device includes: A hook is located on the first panel and extends out of the side wall of the first panel. The hook is movably connected to the first panel and can slide in a direction perpendicular to the second panel. A fixed shaft is embedded in the second panel; wherein the extending direction of the fixed shaft is parallel to the contact surface of the first panel and the second panel. The locking mechanism applies a tension force to the hook when the hook is inserted into the second panel and hooked onto the fixed shaft. The tension force is used to make the hook slide away from the fixed shaft. The locking mechanism includes: A cam is rotatably connected to the first panel; one end of the hook is provided with a mounting hole, which is fitted onto the cam. When the hook is engaged with the fixed shaft and the cam is rotated, the cam pushes the hook to slide away from the fixed shaft, so that the hook pulls the fixed shaft tight. The positioning structure is used to restrict the cam from rotating in the opposite direction when the hook pulls the fixed shaft; wherein, "opposite direction" means the direction of rotation of the cam is opposite to the direction of rotation of the cam when the hook pulls the fixed shaft. The two sides of the cam extend outward to form a rotating shaft, which is rotatably connected to the first panel; the base circle radius of the cam is R1, and the distance between the point on the cam farthest from the axis of rotation and the axis of rotation is L1; Along the axial direction of the mounting hole, the mounting hole includes an elongated section and a circular section. The elongated section is fitted onto the outside of the rotating shaft, and the length of the elongated section is greater than the diameter of the rotating shaft. The rotating shaft can slide along the length direction of the elongated section. When the hook is attached to the fixed shaft, the length direction of the elongated section is perpendicular to the second panel. The circular section is fitted onto the outside of the cam, and the radius of the circular section is R2, where 2R2 < L1 + R1, and R2 < L1. The positioning structure: The ratchet is a plurality of ratchet teeth, which are equidistantly distributed along the circumference of the cam, and a ratchet groove is formed between each pair of adjacent ratchet teeth. The tenon is located on the inner wall of the circular hole section; when the hook tightens the fixed shaft, the tenon is located in one of the ratchet grooves. When a reverse torque is applied to the cam, and the reverse torque reaches a certain threshold, the tenon can slide out of the ratchet groove. The surface of the tenon is a smooth curve, so that the tenon can slide in the positive direction from one ratchet groove to another adjacent ratchet groove. The surface of the ratchet is a smooth curve so that the tenon can disengage from the ratchet groove.

2. The refrigerator according to claim 1, wherein The mounting device also includes: A first mounting base is embedded in the first panel. The first mounting base has a first mounting groove. The cam is located in the first mounting groove, and the rotating shaft is rotatably connected to the first mounting base. The hook is rotatably connected to the first mounting groove. When the rotating shaft is rotated, the hook can extend out of the first mounting groove. The second mounting base is embedded in the second panel, and the second mounting base is provided with a second mounting groove, in which the fixed shaft is located.

3. The freezer according to claim 2, characterized in that, A limiting structure is also provided between the first panel and the second panel, the limiting structure including: The limiting groove is located on the side wall where the opening of the first mounting slot of the first mounting base is located. The limiting protrusion is located on the side wall where the second mounting groove opening of the second mounting base is located; When the limiting protrusion extends into the limiting groove, the opening of the first mounting groove is aligned with the opening of the second mounting groove.

4. The freezer according to claim 3, characterized in that, The limiting protrusion is an annular flange that protrudes outward along the circumference of the second mounting groove, and the limiting groove is an annular groove that is recessed inward along the circumference of the first mounting groove. The limiting protrusion is inclined, and the outer end of the limiting protrusion is inclined toward the direction of the second mounting groove; the sidewall of the limiting groove is inclined, and the outer end of the limiting groove is inclined away from the first mounting groove.

5. The freezer according to claim 2, characterized in that, Two rotating shaft holes are provided on the two opposite side walls of the first mounting groove. The two ends of the rotating shaft are respectively located in the two rotating shaft holes, and the rotating shaft can rotate relative to the rotating shaft holes. At least one end of the rotating shaft is provided with an operating part. Operating the operating part can rotate the rotating shaft, thereby driving the cam to rotate.

6. The freezer according to claim 2, characterized in that, The outer walls of both the first mounting base and the second mounting base are provided with anti-slip structures to prevent the first mounting base and the second mounting base from sliding out of the foam layer of the panel.

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