Refrigerator

Abstract

The invention relates to a refrigerator, and belongs to the technical field of household equipment. The refrigerator comprises a refrigerator body, a refrigerator liner, an air duct cover plate and an overturning buckle. A refrigeration chamber with an opening in the front end is defined by the refrigerator container, and a clamping groove is formed in the inner side wall of the refrigerator container; the air duct cover plate is arranged on the rear side wall of the refrigerator liner; a fixing part extending backwards is arranged on the edge of the back side of the air duct cover plate in a protruding mode, and a limiting table is arranged on the fixing part. The overturning buckle is rotationally connected to the fixing part and corresponds to the clamping groove. An abutting face matched with the overturning buckle is arranged on the rear side wall of the refrigerator container, the clamping groove is located on one side of the abutting face, and the abutting face is smoothly or smoothly connected with the groove side wall of the clamping groove. When the air duct cover plate is installed on the rear side wall of the refrigerator liner, the overturning buckle can abut against the abutting face, the overturning buckle rotates along the side facing the clamping groove, the first end of the overturning buckle can be clamped into the clamping groove, the second end of the overturning buckle can abut against the limiting table, the first end of the overturning buckle is fixed into the clamping groove, and the second end of the overturning buckle can abut against the limiting table. The technical problem that connection between an air duct cover plate and a refrigerator container is not stable enough is solved.

Description

Technical Field

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

[0002] Refrigerators have become an indispensable household appliance in people's daily lives, as they can refrigerate and freeze items.

[0003] A conventional refrigerator comprises a box body, a box liner arranged in the box body, and an air duct cover plate arranged on the rear side wall of the box liner. A buckle is arranged on the rear side wall of the air duct cover plate, and the buckle is engaged with a slot on the box liner to fix the air duct cover plate on the box liner.

[0004] However, currently, the air duct cover and the refrigerator are assembled with ordinary elastic buckles, and the strength of such elastic buckles is difficult to meet the assembly requirements of the air duct cover and the refrigerator in a strict drop test. The buckles often loosen during the transportation and testing of the refrigerator, causing the air duct cover to separate from the refrigerator. Summary of the invention

[0005] The object of the present invention is to provide a refrigerator to solve the technical problem that the connection between the existing air duct cover and the refrigerator is not stable enough.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a refrigerator, comprising: a box body, which forms an outer shell of the refrigerator; a box liner, which is arranged in the box body, and the box liner encloses a refrigeration compartment with a front opening; a card slot is provided on the inner side wall of the box liner; an air duct cover plate, which is arranged in the refrigeration compartment and is arranged on the rear side wall of the box liner; a fixing portion extending backward is convexly provided at the back edge of the air duct cover plate, and a limiting platform is provided on the fixing portion; a flip buckle, which is rotatably connected to the fixing portion and is arranged corresponding to the card slot; wherein a contact surface matching with the flip buckle is provided on the rear side wall of the box liner, and the card slot is located on the contact surface One side of the contact surface, and the abutment surface is smoothly or roundedly connected to the groove side wall of the slot; when the air duct cover is installed on the rear side wall of the box, the first end of the flip buckle can abut against the abutment surface to squeeze the flip buckle through the abutment surface to make the flip buckle rotate along a first direction toward one side of the slot; when the air duct cover moves to a first preset position in the direction close to the rear side wall of the box, the first end of the flip buckle can be inserted into the slot, and the second end can abut against the limit platform to fix the first end of the flip buckle in the slot, so that the air duct cover is locked on the box.

[0008] In some embodiments of the present application, a first extrusion surface is formed at the first end of the flip buckle, and the first extrusion surface is an arc-shaped surface; when the air duct cover is installed on the rear side wall of the box, the first extrusion surface can abut against the abutment surface, and the first extrusion surface of the flip buckle is squeezed by the abutment surface, so that the flip buckle rotates toward one side of the slot.

[0009] In some embodiments of the present application, two fixing parts are provided, and the two fixing parts are arranged at intervals; the fixing part includes a plate base, a connecting arm and an elastic arm; the base plate is arranged at the back edge of the air duct cover plate, and the connecting arm and the elastic arm are fixed to one end of the base plate away from the air duct cover plate; the flip buckle is rotatably connected between the two connecting arms; the limit platform is provided on the side wall of the elastic arm facing the other elastic arm.

[0010] In some embodiments of the present application, the side of the limit platform facing away from the air duct cover is constructed as a positioning surface, and the positioning surface is used to abut against the second end of the flip buckle; when the air duct cover moves to a first preset position in a direction close to the rear side wall of the box, the second end of the flip buckle abuts against the positioning surface to fix the first end of the flip buckle in the slot.

[0011] In some embodiments of the present application, an extrusion slope is formed on the side of the limit platform away from the positioning surface; when the air duct cover moves to a first preset position toward the rear side of the box body, the second end of the flip buckle can abut against the extrusion slope to make the elastic arm bend and deform toward the side away from the flip buckle; when the second end of the flip buckle passes over the limit platform, the elastic arm is restored to shape and makes the second end of the flip buckle abut against the positioning surface.

[0012] In some embodiments of the present application, a boss is provided on the abutting surface of the box liner, the boss protrudes toward the opening direction of the refrigeration compartment, and the boss forms a second extrusion surface toward one side of the slot; when the air duct cover moves to a first preset position in a direction close to the rear side wall of the box liner, the second extrusion surface can squeeze the first extrusion surface of the flip buckle so that the flip buckle rotates toward one side of the slot.

[0013] In some embodiments of the present application, a first de-elastic slope is further provided on the boss, and the first de-elastic slope is used to abut against the elastic arm to cause the elastic arm to bend and deform; the end of the elastic arm away from the air duct cover is provided with a second de-elastic slope that cooperates with the first de-elastic slope of the boss; when the air duct cover moves to a second preset position in a direction close to the rear side wall of the box, the first de-elastic slope on the boss squeezes the second de-elastic slope to cause the elastic arm to bend and deform to the side away from the flip buckle, so as to release the limit of the positioning surface of the limit table on the second end of the flip buckle.

[0014] In some embodiments of the present application, a limit groove is further provided on the abutting surface, and the limit groove is arranged on one side of the first de-elastic slope of the boss and is recessed in a direction away from the opening of the refrigeration chamber; when the air duct cover plate moves toward the rear side wall of the box, so that the rear end surface of the elastic arm is away from the air duct cover plate and abuts against the bottom wall of the limit groove, the air duct cover plate moves to a second preset position.

[0015] In some embodiments of the present application, a reset member is further included, which is connected to the flip buckle and the fixed portion, and is used to provide a reset force for the flip buckle; when the air duct cover moves to a second preset position in a direction close to the rear side wall of the box, and the positioning surface of the limit platform is released to limit the second end of the flip buckle; the reset member can drive the second end of the flip buckle to rotate toward the direction of the limit platform to exit the positioning surface; the flip buckle switches to a rotatable state, pulling the air duct cover to move in a direction away from the rear side wall of the box, which can drive the first end of the flip buckle to rotate out of the slot.

[0016] In some embodiments of the present application, a stop block is protruding from the fixed portion, and the stop block is used to abut against the second end of the flip buckle; when the flip buckle is reset, the second end of the flip buckle abuts against the stop block, so that the extension direction of the flip buckle forms an angle of 2°-6° with the peripheral side wall of the box liner.

[0017] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:

[0018] In this embodiment, a refrigerator is provided, wherein the box of the refrigerator is fixed to the air duct cover by a rotatable flip buckle. A fixing portion extending backward is convexly provided at the back edge of the air duct cover, and a limit table is provided on the fixing portion. The flip buckle is rotatably connected to the fixing portion and is arranged corresponding to the slot. When the air duct cover is installed on the rear side wall of the box, the abutting surface on the box can squeeze the flip buckle, so that the flip buckle rotates toward one side of the slot, one end of the flip buckle is inserted into the slot, and the other end abuts against the limit table, and the flip buckle is locked, so that the air duct cover is fixed to the box. Compared with the traditional snap buckle that is snapped by elastic deformation, the flip buckle in this embodiment enters the slot by rotation; this structure is not easy to be damaged during installation and disassembly, can meet the strong impact after assembly, and makes the air duct cover not easy to fall off, which can meet the assembly requirements of the strict drop test. In addition, the limit table is used to abut against the flip buckle to lock the rotation of the flip buckle, which further increases the stability of the connection between the air duct cover and the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the refrigerator after the box and air duct cover are installed.

[0020] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the middle box and air duct cover.

[0021] Figure 3 for Figure 1 Schematic diagram of the front view of the middle box.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0023] Figure 5 for Figure 2 Schematic diagram of the three-dimensional structure of the middle air duct cover.

[0024] Figure 6 for Figure 5 Schematic diagram of the rear view of the central air duct cover.

[0025] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of the fixed part and the flip buckle at B in the middle.

[0026] Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure after the middle flip buckle and the card slot are fixed.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing part on the air duct cover.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the flip buckle.

[0029] Fig.11 for Figure 7 Schematic diagram of the cross-sectional structure of the middle flip buckle and the fixing part.

[0030] Fig.12 for Figure 1 Schematic diagram of the front view of the middle box and the air duct cover.

[0031] Fig.13 for Fig.12 Schematic diagram of the CC cross-section structure.

[0032] Fig.14 for Fig.13 The enlarged structural diagram at D in the figure.

[0033] Fig.15 for Fig.12 Schematic diagram of the cross-sectional structure of EE.

[0034] Fig.16 for Fig.15 Enlarged structural diagram at F in the middle.

[0035] The following are the descriptions of the reference numerals:

[0036] 1. Box liner; 11. Refrigeration compartment; 12. Air duct mounting groove; 13. Slot; 14. Abutment surface; 15. Boss; 151. First de-elastic slope; 152. Second extrusion surface; 16. Limiting groove; 2. Air duct cover; 21. Fixing part; 211. Base plate; 212. Connecting arm; 213. Elastic arm; 2131. Second de-elastic slope; 22. Limiting platform; 221. Positioning surface; 222. Extrusion slope; 23. Stopper; 24. Protruding rib; 3. Flip buckle; 31. First end; 311. First extrusion surface; 32. Second end; 321. Notch; 33. Connecting shaft; 34. Retaining spring. DETAILED DESCRIPTION

[0037] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] At present, the air duct cover and the refrigerator are assembled with ordinary elastic buckles, which are difficult to meet the assembly requirements of the air duct cover and the refrigerator in a strict drop test. The buckles often loosen during the transportation and testing of the refrigerator, causing the air duct cover to separate from the refrigerator.

[0042] In view of the above problems, the inventor provides a refrigerator, which realizes the fixation with the card slot 13 on the box 1 by rotating the flip buckle 3 arranged on the air duct cover plate 2, so that the fixation of the air duct cover plate 2 and the box 1 is more stable, and it is also convenient to disassemble the air duct cover plate 2. The structure of the refrigerator is now described in conjunction with a specific embodiment.

[0043] It should be understood that in this embodiment, the refrigerator is placed on the ground as a reference, the opening direction of the refrigeration compartment 11 of the box 1 is the front, and the opening direction of the refrigeration compartment 11 away from the box 1 is the rear.

[0044] Figure 1 It is a schematic diagram of the three-dimensional structure of the refrigerator after the box 1 and the air duct cover 2 are installed; Figure 2 for Figure 1Schematic diagram of the exploded structure of the middle box 1 and the air duct cover 2.

[0045] See also Figure 1 and Figure 2 In this embodiment, the refrigerator includes a box body (not shown in the figure), a box 1, an air duct cover plate 2 and a flip buckle 3. The flip buckle 3 is rotatably connected to the air duct cover plate 2 and is used to fix the air duct cover plate 2 on the rear side wall of the box 1.

[0046] In some embodiments, the box body forms the outer shell of the refrigerator, and the interior thereof forms a receiving cavity for receiving other components. The box body is generally in the shape of a rectangular cylinder, and a rotating box door is provided on the front side thereof, and the box door can open or close the receiving cavity in the refrigerator.

[0047] See also Figure 1 and Figure 2 In this embodiment, the box liner 1 is arranged in the accommodating cavity of the box body, and the box liner 1 encloses a refrigerating chamber 11 with a front opening. The opening of the refrigerating chamber 11 is directly opposite to the door of the box body, so that the door can close or open the refrigerating chamber 11. When the door of the box body is closed, it just covers the opening of the refrigerating chamber 11, so that the refrigerating chamber 11 can form a closed storage space to store various items.

[0048] Figure 3 for Figure 1 A schematic diagram of the front structure of the middle box 1; Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0049] See also Figure 3 and Figure 4 In this embodiment, a duct installation groove 12 is recessed on the rear side wall of the box 1 for installing the duct cover plate 2. The duct cover plate 2 is covered on the duct installation groove 12 and closes the opening of the duct installation groove 12, so that a cooling duct is formed between the rear side wall of the duct cover plate 2 and the duct installation groove 12. The cooling duct can transport the cooling airflow to the refrigeration compartment 11, so that the refrigeration compartment 11 is kept in a low temperature environment.

[0050] Please continue reading Figure 3 In the present embodiment, a clamping groove 13 is recessed on the peripheral side wall of the air duct mounting groove 12 for cooperating with the flip buckle 3 on the air duct cover plate 2 to fix the air duct cover plate 2 .

[0051] See also Figure 4 A contact surface 14 cooperating with the flip buckle 3 is provided on the rear side wall of the box 1, and the card slot 13 is located on one side of the contact surface 14, and the contact surface 14 and the groove side wall of the card slot 13 are smoothly or roundly connected.

[0052] Specifically, in this embodiment, a plurality of slots 13 are evenly spaced on the peripheral side wall of the air duct mounting groove 12, so that the connection between the air duct cover plate 2 and the box 1 can be more stable. The side of the slot 13 away from the side wall of the air duct mounting groove 12 forms an abutment surface 14, which is used for a smooth transition between the rear side wall of the slot 13 and the rear side wall of the air duct mounting groove 12, so that the opening direction of the slot 13 forms an arc abutment surface 14. The flip buckle 3 can rotate along the abutment surface 14 to slide into the slot 13.

[0053] Figure 5 for Figure 2 A schematic diagram of the three-dimensional structure of the middle air duct cover plate 2; Figure 6 for Figure 5 A schematic diagram of the rear view structure of the middle air duct cover plate 2; Figure 7 for Figure 5 A schematic diagram of the enlarged structure of the flip buckle 3 and the fixing portion 21 at B in the middle; Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure after the middle flip buckle 3 and the card slot 13 are fixed.

[0054] See also Figures 5 to 8 In this embodiment, a fixing portion 21 extending backward is convexly provided at the back edge of the air duct cover plate 2, and a stopper 22 facing the flip buckle 3 is convexly provided on the fixing portion 21. The flip buckle 3 is rotatably connected to the fixing portion 21 and corresponds to the position of the card slot 13 on the box 1.

[0055] Specifically, the fixing parts 21 of this embodiment are provided with multiple groups, which are evenly spaced on the ribs 24 on the back side of the air duct cover plate 2. Each group of fixing parts 21 is rotatably connected to a flip buckle 3, so that the flip buckle 3 can rotate around its rotation axis.

[0056] like Figure 7 As shown, the first end 31 of the flip buckle 3 extends out of the fixing portion 21, so that when the air duct cover 2 moves toward the rear side wall of the box 1, the flip buckle 3 can abut against the abutment surface 14 on one side of the slot 13 to rotate into the slot 13 to fix the air duct cover 2 to the box 1.

[0057] See also Figure 4 , Figure 7 and Figure 8 When the air duct cover plate 2 moves toward the rear side wall of the box 1 to be installed on the rear side wall of the box 1. The first end 31 of the flip buckle 3 can abut against the abutting surface 14, and the abutting surface 14 can squeeze the flip buckle 3 to make the flip buckle 3 rotate along the first direction toward one side of the slot 13. When the air duct cover plate 2 moves to the first preset position in the direction close to the rear side wall of the box 1; the first end 31 of the flip buckle 3 can be clamped in the slot 13, and the second end 32 of the flip buckle 3 can abut against the limit platform 22 on the fixing portion 21, as shown in FIG. Figure 8As shown, at this time, the flip buckle 3 is fixed in the card slot 13 to achieve the locking of the air duct cover 2 and the box 1.

[0058] It should be understood that the first preset position in this embodiment refers to the position of the air duct cover plate 2 in the refrigeration compartment 11 when the air duct cover plate 2 and the box 1 are fixed to each other. The first direction referred to in this embodiment refers to the rotation direction of the first end 31 of the flip buckle 3 sliding along the abutment surface 14 into the card slot 13.

[0059] The refrigerator box 1 and the air duct cover plate 2 are fixed by a rotatable flip buckle 3. Compared with the traditional buckle that is connected by elastic deformation, the flip buckle 3 in this embodiment enters the card slot 13 by rotation. This structure is not easy to be damaged during the installation and disassembly process, can meet the strong impact after assembly, and makes the air duct cover plate 2 not easy to fall off, which can meet the requirements of the strict drop test for assembly. In addition, the limit table 22 is used to abut against the flip buckle 3 to lock the rotation of the flip buckle 3, which further increases the connection stability between the air duct cover plate 2 and the box 1.

[0060] In some embodiments, please refer to Figure 7 The first end 31 of the flip buckle 3 is formed with a first extrusion surface 311, and the first extrusion surface 311 is an arc surface.

[0061] When the air duct cover plate 2 moves toward the rear side wall of the box 1 to be installed on the rear side wall of the box 1, the first extrusion surface 311 on the flip buckle 3 can abut against the abutment surface 14 on the box 1. The abutment surface 14 presses the first extrusion surface 311 of the flip buckle 3, so that the first end 31 of the flip buckle 3 rotates toward one side of the slot 13.

[0062] The first pressing surface 311 of the flip buckle 3 for abutting against the abutting surface 14 is an arc-shaped surface with a certain curvature, which can make the flip buckle 3 rotate toward the slot 13 more smoothly without jamming.

[0063] In some embodiments, see Figure 4 A boss 15 is provided on the abutting surface 14 of the box 1, and the boss 15 protrudes toward the opening direction of the refrigeration chamber 11. A side of the boss 15 facing the slot 13 forms a second extrusion surface 152.

[0064] Specifically, two bosses 15 are protruded on the side of the abutting surface 14 away from the slot 13 , and a side of the boss 15 facing the slot 13 forms a second extrusion surface 152 , and a smooth transition is formed between the second extrusion surface 152 and the abutting surface 14 .

[0065] When the air duct cover plate 2 moves to the first preset position in the direction close to the rear side wall of the box 1, the first extrusion surface 311 of the flip buckle 3 on the air duct cover plate 2 first abuts against the second extrusion surface 152 on the boss 15. At this time, the second extrusion surface 152 generates an extrusion force on the first extrusion surface 311 in the direction of the slot 13, so as to cause the first end 31 of the flip buckle 3 to rotate toward the slot 13, so that the flip buckle 3 can be smoothly inserted into the slot 13, thereby achieving the fixation of the air duct cover plate 2 and the box 1.

[0066] By pressing the first pressing surface 311 of the flip buckle 3 with the second pressing surface 152 of the boss 15 toward the slot 13 , the flip buckle 3 can be more easily rotated in the first direction, and the flip buckle 3 is not easily stuck during the rotation process.

[0067] It should be understood that the number of the bosses 15 in this embodiment can be changed, and can be adjusted accordingly according to the shape of the first extrusion surface 311 on the first end 31 of the flip buckle 3 .

[0068] Fig. 9 is a schematic diagram of the three-dimensional structure of the fixing portion 21 on the air duct cover plate 2; Fig.10 It is a schematic diagram of the three-dimensional structure of the flip buckle 3; Fig.11 for Figure 7 Schematic cross-sectional view of the middle flip buckle 3 and the fixing portion 21.

[0069] Please refer to 7 to Fig. 9 In this embodiment, two fixing parts 21 are provided, and the fixing parts 21 are plate-shaped. The two fixing parts 21 are relatively spaced and fixed on the ribs 24 on the rear side wall of the air duct cover plate 2. The interval between the two fixing parts 21 constitutes an installation space, and the flip buckle 3 is rotatably connected in the installation space between the two fixing parts 21.

[0070] Further, if Fig. 9 As shown, the fixing plate includes a base plate 211, a connecting arm 212 and an elastic arm 213. The base plate 211 is arranged at the back edge of the air duct cover plate 2, and the bottom of the base plate 211 is connected to the air duct cover plate 2. The connecting arm 212 and the elastic arm 213 are fixed to one end of the base plate 211 away from the air duct cover plate 2. The flip buckle 3 is rotatably connected between the two connecting arms 212; a limit platform 22 is provided on the side wall of the elastic arm 213 facing the other elastic arm 213.

[0071] The connecting arm 212 is provided with a through hole, and the flip buckle 3 is provided with a connecting shaft 33. Both ends of the connecting shaft 33 are provided through the through holes on the connecting arm 212, so as to realize the rotation connection between the flip buckle 3 and the connecting arm 212. In addition, the elastic arm 213 and the connecting arm 212 are separated from each other by a through groove, so that when the elastic arm 213 is deformed, it will not affect the connecting shaft 33 provided on the connecting arm 212.

[0072] See also Figure 8 and Fig. 9 In some embodiments, the side of the limiting platform 22 facing away from the air duct cover plate 2 is configured as a positioning surface 221 , and the positioning surface 221 is used to abut against the second end 32 of the flip buckle 3 .

[0073] When the air duct cover plate 2 moves to the first preset position in the direction close to the rear side wall of the box 1, the flip buckle 3 rotates to a state parallel to the air duct cover plate 2, such as Figure 8 As shown, the second end 32 of the flip buckle 3 abuts against the positioning surface 221 of the limiting platform 22 on the elastic arm 213 to fix the first end 31 of the flip buckle 3 in the slot 13 .

[0074] The flip buckle 3 is fixed in the slot 13 by abutting the positioning surface 221 on the limit platform 22 against the flip buckle 3, which can enhance the stability of the connection between the air duct cover 2 and the box 1, so that the air duct cover 2 and the box 1 will not be separated due to bumps.

[0075] See also Fig. 9 In some embodiments, a side of the limiting platform 22 away from the positioning surface 221 forms an extrusion slope 222. The extrusion slope 222 is used to cooperate with the second end 32 of the flip buckle 3 so that the second end 32 of the flip buckle 3 can smoothly pass over the limiting platform 22.

[0076] When the air duct cover plate 2 moves to the first preset position toward the rear side of the box 1, that is, the flip buckle 3 is Figure 7 The state shown is converted to Figure 8 During the process of the state shown. The second end 32 of the flip buckle 3 can abut against the extrusion slope 222 on the limit platform 22 and move relatively along the extrusion slope 222, so that the elastic arm 213 bends and deforms toward the side away from the flip buckle 3. When the second end 32 of the flip buckle 3 passes over the limit platform 22, the elastic arm 213 recovers and makes the second end 32 of the flip buckle 3 abut against the positioning surface 221 of the limit platform 22, so that the flip buckle 3 is engaged with the card slot 13.

[0077] Furthermore, the positioning surface 221 is perpendicular to the inner side wall of the elastic arm 213, so that the positioning surface 221 can better limit the second end 32 of the flip buckle 3, so as to increase the connection stability between the air duct cover plate 2 and the box 1. In addition, the extrusion slope 222 gradually inclines toward the positioning surface 221 along the protruding direction of the limiting platform 22, which can make the flip buckle 3 pass over the limiting platform 22 more easily.

[0078] See also Fig.10 The first end 31 and the second end 32 of the flip buckle 3 are respectively arranged on both sides of the connecting shaft 33, the first end 31 is cam-shaped, and the second end 32 is a three-dimensional rectangular structure.

[0079] In this embodiment, a receiving groove is also provided in the middle of the flip buckle 3 for installing a reset member to reset the flip buckle 3.

[0080] See also Figure 7 , Figure 8 and Fig.10 The reset member of this embodiment is a spring clip 34, which is inserted into the connecting shaft 33 of the flip buckle 3. One end of the spring clip 34 abuts against the flip buckle 3, and the other end abuts against the fixing portion 21. The spring clip 34 is used to provide a reset force for the flip buckle 3, so that the device can be kept in the state of being free from external force. Figure 7 The initial state is shown.

[0081] It is understandable that the reset member can also be an elastic member such as a spring or a spring sheet. At this time, one end of the reset member is connected to the flip buckle 3, and the other end is connected to the fixing portion 21 on the air duct cover plate 2, so that the flip buckle 3 is kept in the position as shown in FIG. Figure 7 In addition, the elastic force of the reset member can drive the flip buckle 3 to reset when the flip buckle 3 is not locked by the positioning surface 221.

[0082] See also Fig. 9 and Fig.10 In this embodiment, a stopper 23 is protruding from the fixing portion 21 , and a notch 321 is provided on the second end 32 of the flip buckle 3 .

[0083] like Fig.11 As shown, when the reset member drives the flip buckle 3 to reset, the stopper 23 on the fixed portion 21 is accommodated in the notch 321 of the flip buckle 3, and the stopper 23 abuts against the bottom wall of the notch 321, thereby limiting the flip buckle 3. In this state, the extension direction of the flip buckle 3 forms an angle of 2°-6° with the peripheral side wall of the box 1.

[0084] See also Fig.11 The flip buckle 3 forms an angle of 2°-6° with the peripheral side wall of the box 1. When the boss 15 on the abutting surface 14 abuts against the first end 31 of the flip buckle 3, a component force biased toward the slot 13 can be generated, making it easier for the flip buckle 3 to rotate in the first direction to fit into the slot 13.

[0085] It is understandable that the notch 321 may not be provided on the second end 32 of the flip buckle 3, and the second end 32 directly abuts against the stopper 23 on the fixing portion 21 to limit the flip buckle 3 so that the flip buckle 3 is kept in the fixed position under the action of the retaining spring 34 and the stopper 23. Fig.11 Status shown.

[0086] Fig.12 for Figure 1 A schematic front view of the middle box 1 and the air duct cover 2; Fig.13 for Fig.12 Schematic diagram of the CC section; Fig.14 for Fig.13 The enlarged structural diagram at D in FIG. Fig.15 for Fig.12 Schematic diagram of the EE cross section; Fig.16 for Fig.15 Enlarged schematic diagram at F in the middle.

[0087] See also Fig.16 Combined with Figure 4 In some embodiments, a first de-elasticity slope 151 is further provided on the boss 15 , and the first de-elasticity slope 151 is used to abut against the elastic arm 213 to make the elastic arm 213 bend and deform.

[0088] Specifically, two bosses 15 are provided, respectively corresponding to the two elastic arms 213. The first elastic-retracting inclined surface 151 of the boss 15 is arranged opposite to the inner side wall of the elastic arm 213, and the boss 15 can be embedded between the two elastic arms 213 to open the two elastic arms 213 to release the positioning surface 221 of the limit platform 22 from abutting against the second end 32 of the flip buckle 3.

[0089] When the air duct cover 2 continues to be pushed, so that the air duct cover 2 moves from the first preset position to the direction close to the rear side wall of the box 1 to the second preset position; the first de-elastic slope 151 on the boss 15 squeezes the inner wall of the elastic arm 213, so that the elastic arm 213 bends and deforms to the side away from the flip buckle 3, so as to release the positioning surface 221 of the limit platform 22 from limiting the second end 32 of the flip buckle 3.

[0090] At this time, the clamping spring 34 can drive the second end 32 of the flip buckle 3 to rotate at a small angle toward the limit platform 22, so that the second end 32 of the flip buckle 3 can exit the positioning surface 221. The flip buckle 3 is switched to a rotatable state, and then the air duct cover plate 2 is pulled away from the rear side wall of the box 1, which can drive the first end 31 of the flip buckle 3 to rotate and disengage from the card slot 13, thereby realizing the disassembly of the air duct cover plate 2 and the box 1.

[0091] By pushing the air duct cover plate 2 backward to the second preset position, the flip buckle 3 is unlocked, and then the air duct cover plate 2 is disassembled. The whole disassembly process is simple and convenient. The air duct cover plate 2 can be unlocked by simply pushing the air duct cover plate 2 backward to the second preset position. Compared with the traditional hard pulling disassembly of the air duct cover plate 2, the disassembly is achieved through the cooperation of the boss 15, the elastic arm 213 and the clip 34, and the inner side wall of the box 1 will not be scratched. The disassembly of the air duct cover plate 2 is more convenient, and it is also convenient for the maintenance of the refrigerator.

[0092] In some embodiments, see Fig.16 Combined with Figure 4A limiting groove 16 is further provided on the abutting surface 14 . The limiting groove 16 is provided on one side of the first elastic-retracting inclined surface 151 of the boss 15 and is recessed in a direction away from the opening of the refrigerating chamber 11 .

[0093] The limiting groove 16 is recessed in the direction of the opening of the refrigerating chamber 11 to reserve a moving position for the elastic arm 213. When the air duct cover plate 2 moves toward the rear side wall of the box 1, and the rear end surface of the elastic arm 213 is away from the air duct cover plate 2 and abuts against the bottom wall of the limiting groove 16, the air duct cover plate 2 moves to the second preset position. At this time, the first elastic release inclined surfaces 151 on both sides of the boss 15 spread the two elastic arms 213 apart, so that the elastic arms 213 drive the limiting platforms 22 thereon to move away from each other, so as to release the abutment limit of the positioning surface 221 on the flip buckle 3.

[0094] In some embodiments, see Fig.16 Combined with Fig. 9 The end of the elastic arm 213 away from the air duct cover plate 2 is provided with a second elastic-retracting inclined surface 2131 matching the boss 15. The second elastic-retracting inclined surface 2131 is inclined toward the inner side of the elastic arm 213 to form an oblique cut.

[0095] When the air duct cover plate 2 moves to the second preset position in the direction close to the rear side wall of the box 1, the first elastic-retracting inclined surface 151 on the boss 15 presses the second elastic-retracting inclined surface 2131 on the elastic arm 213, so that the elastic arm 213 is bent and deformed toward the side away from the flip buckle 3, thereby releasing the position limit of the positioning surface 221 of the limit platform 22 on the second end 32 of the flip buckle 3, so that the air duct cover plate 2 can be pulled out along the opening direction of the refrigeration compartment 11.

[0096] It should be understood that the first de-elasticity slope 151 on the boss 15 and the second de-elasticity slope 2131 on the elastic arm 213 can be used selectively, as long as the boss 15 can be inserted between the two elastic arms 213 to open the two elastic arms 213. In addition, the slopes of the first de-elasticity slope 151 and the second de-elasticity slope 2131 can also be adjusted according to actual use requirements.

[0097] See also Figure 7 , Figure 8 , Fig.14 as well as Fig.16 This embodiment also provides a method for installing and disassembling the air duct cover 2.

[0098] S10, when installing the air duct cover plate 2: push the air duct cover plate 2 to move toward the air duct installation groove 12 on the rear side wall of the box 1. At this time, the flip buckle 3 on the air duct cover plate 2 is in the position as shown in FIG. Figure 7 In the middle state, the extension direction of the flip buckle 3 has an angle of 2°-6° with the peripheral side wall of the box 1.

[0099] When the air duct cover plate 2 moves to contact the boss 15 of the abutting surface 14, the boss 15 faces the second pressing surface 152 of the slot 13 to press the first pressing surface 311 on the first end 31 of the flip buckle 3. Fig.14 The flip buckle 3 is rotated in the counterclockwise direction in the box body to slide along the abutment surface 14 into the card slot 13 on the box body 1.

[0100] During this process, the second end 32 of the flip buckle 3 moves along the extrusion slope 222 of the limit platform 22, causing the elastic arm 213 to bend and deform toward the side away from the flip buckle 3. When the second end 32 of the flip buckle 3 passes over the limit platform 22, the elastic arm 213 recovers its deformation and causes the flipped second end 32 to abut against the positioning surface 221 of the limit platform 22. Fig.14 As shown, the flip buckle 3 is snapped into the slot 13 of the box 1 to fix the air duct cover 2.

[0101] S20, when the air duct cover plate 2 is removed: push the air duct cover plate 2 to continue moving toward the rear side wall of the box 1 to the second preset position. Make the elastic arm 213 of the air duct cover plate 2 contact with the boss 15 of the box 1, see Fig.16 The first de-elasticity inclined surfaces 151 on both sides of the boss 15 abut against the second de-elasticity inclined surfaces 2131 on the elastic arms 213, and the two elastic arms 213 are spread apart, so that the elastic arms 213 are bent and deformed toward the side away from the flip buckle 3, driving the limit platforms 22 on the elastic arms 213 to move away from each other.

[0102] At this time, the snap ring 34 drives the flip buckle 3 to the second direction ( Fig.14 The flip buckle 3 is rotated by a small angle (in the clockwise direction) to release the abutment of the positioning surface 221 of the limiting platform 22 against the second end 32 of the flip buckle 3, so that the flip buckle 3 is switched to a rotatable state.

[0103] Finally, the air duct cover plate 2 is pulled to move from the second preset position toward the direction away from the rear side wall of the box 1, and the flip buckle 3 gradually withdraws from the slot 13 on the box 1, completing the removal of the air duct cover plate 2.

[0104] In summary, the present embodiment achieves the fixation of the air duct cover plate 2 by rotating the connection between the air duct cover plate 2 and the card slot 13 of the box 1. Compared with the traditional card buckle that is connected by elastic deformation, the flip buckle 3 in the present embodiment enters the card slot 13 by rotation; this structure is not easy to be damaged during the installation and disassembly process, can meet the strong impact after assembly, and makes the air duct cover plate 2 not easy to fall off, which can meet the requirements of the strict drop test for assembly. In addition, the limit table 22 is used to abut against the flip buckle 3 to lock the rotation of the flip buckle 3, which further increases the stability of the connection between the air duct cover plate 2 and the box 1.

[0105] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigerator, characterized in that: include: a cabinet, which forms the outer shell of the refrigerator; A box liner is arranged in the box body, and the box liner encloses a refrigeration chamber with an opening at the front end; a card slot is arranged on the inner side wall of the box liner; The air duct cover is arranged in the refrigeration room and on the rear side wall of the box; a fixing portion extending backward is convexly provided on the back edge of the air duct cover, and a limiting platform is provided on the fixing portion; A flip buckle, rotatably connected to the fixing portion and arranged corresponding to the card slot; Wherein, a contact surface cooperating with the flip buckle is provided on the rear side wall of the box, the card slot is located on one side of the contact surface, and the contact surface is smoothly or roundly connected with the side wall of the card slot; When the air duct cover is installed on the rear side wall of the box, the first end of the flip buckle can abut against the abutting surface, so as to squeeze the flip buckle through the abutting surface, so that the flip buckle rotates along the first direction toward one side of the slot; When the air duct cover moves to a first preset position in a direction close to the rear side wall of the box, the first end of the flip buckle can be inserted into the slot, and the second end can abut against the limit platform to fix the first end of the flip buckle in the slot, so that the air duct cover is locked on the box.

2. The refrigerator according to claim 1, characterized in that: The first end of the flip buckle is formed with a first extrusion surface, and the first extrusion surface is an arc-shaped surface; When the air duct cover is installed on the rear side wall of the box, the first extrusion surface can abut against the abutment surface, and the abutment surface squeezes the first extrusion surface of the flip buckle to rotate the flip buckle toward one side of the slot.

3. The refrigerator according to claim 2, characterized in that: There are two fixing parts, and the two fixing parts are arranged at intervals; The fixing part includes a plate base, a connecting arm and an elastic arm; the base is arranged at the back edge of the air duct cover, and the connecting arm and the elastic arm are fixed to one end of the base facing away from the air duct cover; the flip buckle is rotatably connected between the two connecting arms; the limit platform is provided on the side wall of the elastic arm facing the other elastic arm.

4. The refrigerator according to claim 3, characterized in that: The side of the limit platform facing away from the air duct cover is configured as a positioning surface, and the positioning surface is used to abut against the second end of the flip buckle; When the air duct cover moves to a first preset position in a direction close to the rear side wall of the box, the second end of the flip buckle abuts against the positioning surface to fix the first end of the flip buckle in the slot.

5. The refrigerator according to claim 4, characterized in that: The side of the limiting platform away from the positioning surface forms an extrusion inclined surface; When the air duct cover moves to a first preset position toward the rear side of the box, the second end of the flip buckle can abut against the extrusion slope, so that the elastic arm bends and deforms toward a side away from the flip buckle; When the second end of the flip buckle passes over the limiting platform, the elastic arm recovers its deformation and makes the second end of the flip buckle abut against the positioning surface.

6. The refrigerator according to claim 5, characterized in that: A boss is provided on the abutting surface of the box liner, the boss protrudes toward the opening direction of the refrigeration compartment, and a side of the boss facing the slot forms a second extrusion surface; When the air duct cover moves to a first preset position in a direction close to the rear side wall of the box, the second extrusion surface can squeeze the first extrusion surface of the flip buckle to rotate the flip buckle toward one side of the slot.

7. The refrigerator according to claim 6, characterized in that: The boss is also provided with a first elastic-retracting inclined surface, and the first elastic-retracting inclined surface is used to abut against the elastic arm to make the elastic arm bend and deform; One end of the elastic arm facing away from the air duct cover is provided with a second elastic-retracting inclined surface matching the first elastic-retracting inclined surface of the boss; When the air duct cover moves to a second preset position toward the rear side wall of the box, the first de-elastic slope on the boss squeezes the second de-elastic slope to make the elastic arm bend and deform toward the side away from the flip buckle, so as to release the limit of the positioning surface of the limit platform on the second end of the flip buckle.

8. The refrigerator according to claim 7, characterized in that: The abutting surface is also provided with a limiting groove, which is arranged on one side of the first elastic-retracting inclined surface of the boss and is recessed in a direction away from the opening of the refrigerating chamber; When the air duct cover plate moves toward the rear side wall of the box, so that the rear end surface of the elastic arm is away from the air duct cover plate and abuts against the bottom wall of the limiting groove, the air duct cover plate moves to the second preset position.

9. The refrigerator according to claim 7 or 8, characterized in that: It also includes a reset member, which is connected to the flip buckle and the fixing portion and is used to provide a reset force for the flip buckle; When the air duct cover plate moves to the second preset position in the direction close to the rear side wall of the box, and the positioning surface of the limiting platform is released from limiting the second end of the flip buckle; The reset member can drive the second end of the flip buckle to rotate toward the limit platform to exit the positioning surface; the flip buckle is switched to a rotatable state, pulling the air duct cover plate to move away from the rear side wall of the box, which can drive the first end of the flip buckle to rotate and disengage from the slot.

10. The refrigerator according to claim 9, characterized in that: A stopper is also protruding from the fixing portion, and the stopper is used to abut against the second end of the flip buckle; When the flip buckle is reset, the second end of the flip buckle abuts against the stopper, so that the extending direction of the flip buckle forms an angle of 2°-6° with the peripheral side wall of the box liner.

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