Refrigerator

Abstract

The invention discloses a refrigerator which comprises a refrigerator shell, an inner container, a heat preservation layer, an evaporation upper cover, an extending piece and a connecting piece. The inner container is arranged in the box shell, and a storage space and an evaporator bin are arranged in the inner container. The heat preservation layer is arranged between the inner container and the box shell. The evaporator bin is covered with the upper evaporation cover, and an evaporation space is defined by the upper evaporation cover and the evaporator bin; the extending piece is inserted into the heat preservation layer; the connecting piece sequentially penetrates through the storage space and is connected with the upper evaporation cover, the inner container and the heat preservation layer. According to the refrigerator, the evaporation upper cover, the inner container, the heat preservation layer and the stretching-in piece are tightly combined and connected into an integral structure, when shrinkage deformation occurs, the heat preservation layer serves as a stable anchor point, reverse tension is provided through the stretching-in piece, the tension is transmitted to other connecting parts, deformation caused by low-temperature shrinkage of a plastic part is effectively counteracted, and the service life of the refrigerator is prolonged. Therefore, the air duct flash seam is prevented from being generated.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly to a freezer. Background Art

[0002] Air-cooled freezers are widely used due to their high refrigeration performance and good temperature uniformity. However, in the prior art, during the use of air-cooled freezers, especially after long-term operation or refrigeration cycles, due to the shrinkage and deformation of plastic parts at low temperatures, flash seams (i.e., gaps) are likely to appear in the air duct system. These flash seams will damage the sealing performance of the evaporator chamber, causing external water vapor to enter the inside of the evaporator chamber, and eventually icing occurs at the evaporator chamber, fan or air duct. This icing phenomenon not only reduces the refrigeration efficiency of the freezer but also may shorten its service life.

[0003] If improved by adding sponge strips, due to the limited sealing effect of the sponge strips, especially after the plastic parts shrink due to refrigeration, the flash seam problem still cannot be completely avoided, and the sponge strips may age or shift, weakening the sealing effect.

[0004] Therefore, there is an urgent need for a new technical solution that can effectively solve the flash seam problem of the air duct of the air-cooled freezer and improve the reliability of the seal and the overall performance of the system. Summary of the Invention

[0005] To solve the problem of insufficient sealing strength and the appearance of flash seams in the air duct of the air-cooled freezer in the prior art, the purpose of the present invention is to provide a freezer that can effectively improve the reliability of the seal and the overall performance of the system.

[0006] To achieve the above-mentioned invention purpose, an embodiment of the present invention provides a freezer, including:

[0007] A cabinet shell;

[0008] An inner liner, which is arranged inside the cabinet shell, and a storage space and an evaporator chamber are arranged inside the inner liner;

[0009] A thermal insulation layer, which is arranged between the inner liner and the cabinet shell;

[0010] An evaporation upper cover, which covers the evaporator chamber, and an evaporation space is enclosed by the evaporation upper cover and the evaporator chamber;

[0011] An insertion member, which is inserted into the thermal insulation layer;

[0012] A connecting member, which sequentially passes through and connects the evaporation upper cover, the inner liner and the thermal insulation layer from the storage space.

[0013] As a further improvement of the present invention, the inserted member includes a tensioning portion, a flanging portion, and a connecting portion. The tensioning portion is close to the inner container, the flanging portion is away from the inner container, the connecting portion is connected between the tensioning portion and the flanging portion, and the extending direction of the flanging portion intersects with the connecting direction of the connecting member.

[0014] As a further improvement of the present invention, the heat insulation layer is set as a foaming material, and the inserted member extends into the foaming material.

[0015] As a further improvement of the present invention, through holes are provided on the tensioning portion, the flanging portion, and the connecting portion for the foaming material to pass through.

[0016] As a further improvement of the present invention, the flanging portion is set as an annular shape, and the through holes on the flanging portion are set as a plurality of circles surrounding the flanging portion;

[0017] The tensioning portion is set as a circular shape, a threaded hole is provided at the center of the tensioning portion, the connecting member is connected to the threaded hole, and the through hole of the tensioning portion is provided around the threaded hole.

[0018] As a further improvement of the present invention, raised reinforcing ribs are provided on the connecting portion, and the reinforcing ribs extend to the flanging portion.

[0019] As a further improvement of the present invention, the freezer further includes an air duct cover plate, the air duct cover plate is arranged between the evaporation upper cover and the inner container, and the connecting member sequentially passes through and connects the evaporation upper cover, the air duct cover plate, the inner container, and the heat insulation layer.

[0020] As a further improvement of the present invention, the freezer further includes a curvature sensor, and the curvature sensor abuts between the evaporation upper cover and the air duct cover plate, or between the air duct cover plate and the inner container.

[0021] As a further improvement of the present invention, the evaporation upper cover includes a groove body, the groove body includes a abutting surface and a perforation arranged in the vertical direction, the connecting member includes an abutting portion and a screw rod, the screw rod is inserted into the perforation, and the abutting portion abuts against the abutting surface.

[0022] As a further improvement of the present invention, the evaporation upper cover includes an evaporation cover plate, an evaporation heat insulation member, and an evaporation cap. The evaporation heat insulation member is arranged on one side of the evaporation cover plate facing the evaporator chamber, the groove body is arranged on the evaporation cover plate, the evaporation cap closes the groove body, and the outer surface of the evaporation cap is flush with the outer surface of the evaporation cover plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects: The freezer tightly combines the evaporation upper cover, the inner liner, the thermal insulation layer and the extending member to form an integral structure. When shrinkage deformation occurs, the thermal insulation layer serves as a stable "anchor point" and provides a reverse pulling force through the extending member. This pulling force is transmitted to other connecting components, effectively offsetting the deformation caused by the low-temperature shrinkage of the plastic parts, thereby preventing the generation of air duct flash seams. Therefore, the freezer makes full use of the stability of the thermal insulation layer, significantly improves the sealing performance and reliability of the air-cooled freezer, and brings a more efficient refrigeration experience and a longer service life of the equipment to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a partial structure of a freezer according to an embodiment of the present invention;

[0025] Figure 2 is a cross-sectional view of a freezer according to an embodiment of the present invention;

[0026] Figure 3 is Figure 2 a partial enlarged view of part A in

[0027] Figure 4 is a cross-sectional view of a freezer without a thermal insulation layer according to an embodiment of the present invention;

[0028] Figure 5 is Figure 4 a partial enlarged view of part B in

[0029] Figure 6 is a schematic diagram of the structure of an extending member according to an embodiment of the present invention from one perspective;

[0030] Figure 7 is a schematic diagram of the structure of an extending member according to an embodiment of the present invention from another perspective;

[0031] Figure 8 is an exploded view of a freezer according to an embodiment of the present invention;

[0032] Figure 9 is Figure 8 a partial enlarged view of part C in

[0033] Among them, 10, inner liner; 11, evaporator chamber; 110, evaporation space; 20, thermal insulation layer; 30, evaporation upper cover; 31, evaporation cover plate; 311, groove body; 312, abutting surface; 313, perforation; 32, evaporation heat insulation member; 33, evaporation cap; 40, extending member; 41, tensioning part; 411, threaded hole; 42, connecting part; 421, reinforcing rib; 43, flanging; 44, through hole; 50, connecting member; 51, abutting part; 52, screw; 60, curvature sensor; 70, air duct cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodical, or functional transformations made by those of ordinary skill in the art based on these embodiments are included within the protection scope of the present invention.

[0035] It should be understood that terms indicating relative spatial positions such as "upper", "above", "lower", "below", etc. used herein are for the purpose of facilitating description of the relationship between one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms of relative spatial positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the figures.

[0036] An embodiment of the present invention provides a refrigerator, which solves the problem of air duct flash seams caused by shrinkage deformation in existing air-cooled refrigerators, and improves the sealing performance and refrigeration efficiency of the refrigerator.

[0037] The refrigerator of the present invention mainly consists of the following components: a cabinet, an inner liner 10, a thermal insulation layer 20, an evaporation upper cover 30, an insertion member 40, and a connecting member 50. These components are tightly combined through specific connection methods to jointly form an efficient and sealed refrigeration system.

[0038] The cabinet, as the outer shell of the refrigerator, has a rectangular parallelepiped structure and serves to protect the internal structure and support the overall weight.

[0039] The inner liner 10 is disposed inside the cabinet, and its shape is basically adapted to that of the cabinet, also approximately having a rectangular parallelepiped structure.

[0040] As Figures 1 - 5 shown, the inner liner 10 is internally partitioned into a storage space and an evaporator compartment 11. The storage space is used for storing food, and the evaporator compartment 11 accommodates refrigeration components such as an evaporator.

[0041] The thermal insulation layer 20 is filled in the gap between the inner liner 10 and the cabinet, and polyurethane foam material can be used. It has excellent thermal insulation performance and effectively reduces cold loss.

[0042] The evaporation upper cover 30 is covered on the top of the evaporator compartment 11. The evaporation upper cover 30 and the evaporator compartment 11 enclose to form a closed evaporation space 110 to ensure that the cold air flows along the designed direction.

[0043] As Figure 2 and 3 shown, the insertion member 40 is inserted into the thermal insulation layer 20 and tightly combined with the thermal insulation layer 20, playing a role of fixing and tensioning.

[0044] As Figure 3 and 5As shown, the connecting piece 50 passes through the evaporation upper cover 30, the inner tank 10 and the extending piece 40 in sequence from the storage space, and is finally fixed in the heat preservation layer 20, tightly connecting all components together.

[0045] The extending piece 40 is inserted into the heat preservation layer 20 and is wrapped by the foaming material, forming an integral body with the heat preservation layer 20, so that the extending piece 40 plays an "anchoring" role in the heat preservation layer 20, enhancing the structural stability.

[0046] The connecting piece 50 passes through the evaporation upper cover 30, the inner tank 10 and the extending piece 40 from the storage space, tightly fixing these three together. Since the extending piece 40 is tightly combined with the heat preservation layer 20, the connecting piece 50 actually connects the evaporation upper cover 30, the inner tank 10 and the heat preservation layer 20 into an integral body.

[0047] When some parts of the freezer have a shrinking tendency due to low temperature during the refrigeration process, the heat preservation layer 20 provides a reverse pulling force to the extending piece 40, offsetting the shrinkage deformation, thereby preventing the generation of air duct flash seams.

[0048] Since the appearance of flash seams is avoided, the entry of water vapor into the evaporator bin 11 is also prevented, avoiding the influence of accidental frosting and icing on the evaporator and the fan, and eliminating the need for frequent defrosting operations, ensuring the stable operation of the refrigeration system.

[0049] The freezer has significant advantages in preventing air duct flash seams, improving sealing performance, optimizing refrigeration performance and extending service life, etc. It makes full use of the stability of the heat preservation layer 20, cleverly solves the problems in the prior art, and has extremely high practicality and market value.

[0050] As Figure 6 and 7 shown, the extending piece 40 includes a tensioning part 41, a flanging 43 and a connecting part 42. The tensioning part 41 is close to the inner tank 10, the flanging 43 is far from the inner tank 10, the connecting part 42 is connected between the tensioning part 41 and the flanging 43, and the extending direction of the flanging 43 intersects with the connecting direction of the connecting piece 50.

[0051] The tensioning part 41 is close to the inner tank 10 and adopts a flat circular structure, providing an anchor point for the connecting piece 50 (such as a screw or a bolt). The evaporator cover, the inner tank 10, the extending piece 40 and the heat preservation layer 20 are fixed together through the connecting piece 50. The position of the tensioning part 41 close to the inner tank 10 can ensure uniform distribution of the pulling force and avoid deformation of the inner tank 10.

[0052] The flanging 43 is located at one end of the connecting part 42 far from the inner tank 10, and the extending direction intersects with the connecting direction of the connecting piece 50. The flanging 43 can be deeply embedded into the heat preservation layer 20 (usually foam material). The extended surface of the flanging 43 increases the contact area with the heat preservation layer 20, providing a strong anchoring effect.

[0053] When the refrigerator is operating, especially during the cooling cycle, the flanging 43 utilizes the stability of the thermal insulation layer 20 to counteract the shrinkage force of the plastic components.

[0054] The connecting portion 42 connects the tensioning portion 41 and the flanging 43, and transmits the tension force of the flanging 43 to the tensioning portion 41.

[0055] As an implementation, as Figure 3 and 5 shown, the extension direction of the flanging 43 is perpendicular to the connection direction of the connecting member 50.

[0056] To clearly express the positions and directions described in this embodiment, in this embodiment, up and down are defined with reference to the direction of gravity. The refrigerator is basically a cuboid. The two sides in the length direction are left and right respectively, the two sides in the width direction are front and back respectively, and the depth direction is parallel to the up and down direction. In this way, the direction in which the connecting member 50 connects the parts is forward, and the opposite direction is backward. The connection direction of the connecting member 50 is the front-back direction, and the flanging 43 extends on the plane where up, down, left, and right are located.

[0057] The synergistic effect of the tensioning portion 41 and the flanging 43 enhances the structural stability, increases the fixing depth and fixing area with the thermal insulation layer 20, effectively prevents the air duct from having a flash seam, and ensures the sealing performance.

[0058] Furthermore, the thermal insulation layer 20 is set as a foaming material, and the inserting member 40 extends into the foaming material.

[0059] The foaming material can be polyurethane foam, which provides excellent heat insulation performance. The inserting member 40 extends into the foam material, further enhancing the structural stability.

[0060] The thermal insulation layer 20 is formed by injecting polyurethane foam between the inner container 10 and the outer shell. After the foam expands and hardens, it fills the space, providing heat insulation and structural support. Its light weight and firm characteristics make it an ideal thermal insulation material.

[0061] The tensioning portion 41, the flanging 43, and the connecting portion 42 of the inserting member 40 are positioned in the area where the foam will be filled during assembly. After the foam is injected and cured, the foam surrounds and wraps the flanging 43, forming a firm connection between the inserting member 40 and the thermal insulation layer 20.

[0062] The inserting member 40 being embedded in the foam provides a firm anchoring effect, ensuring its stability under mechanical stress or temperature fluctuations.

[0063] As Figure 6 and 7 shown, through holes 44 are provided on the tensioning portion 41, the flanging 43, and the connecting portion 42 for the foaming material to pass through.

[0064] The tightening part 41 is close to the inner container 10 and is provided with a plurality of small through holes 44 around it, arranged in a circular pattern.

[0065] The flanging 43 penetrates deep into the foam, and its surface is distributed with a plurality of larger through holes 44, evenly distributed to maximize foam penetration.

[0066] The connecting part 42 is provided with through holes 44 along its length, usually designed to be slender or grooved to accommodate foam expansion and ensure a firm grip.

[0067] In this way, after the foam cures through the through holes 44, a bridging structure is formed, enhancing the mechanical interlock between the insert 40 and the thermal insulation layer 20. It also avoids the formation of dead spots and voids where the foaming material cannot pass around the insert 40, and the existence of unfoamed areas reduces the tightening effect.

[0068] In addition, the through holes 44 enable uniform stress distribution, enhancing the long-term stability of the insert 40.

[0069] Such as Figure 6 and 7 As shown, the flanging 43 is set to be circular, and the through holes 44 on the flanging 43 are set to be a plurality of circles around the flanging 43; the circular shape and the distribution of the through holes 44 ensure full foam penetration and form a strong anchor.

[0070] The tightening part 41 is set to be circular, a threaded hole 411 is provided at the center of the tightening part 41, the connecting piece 50 is connected to the threaded hole 411, and the through holes 44 of the tightening part 41 are arranged around the threaded hole 411.

[0071] The threaded hole 411 is used for fixing the connecting piece 50, and the symmetrical design balances the stress distribution of the connecting piece 50 and the foaming material, reducing the risk of structural failure.

[0072] Furthermore, raised reinforcing ribs 421 are provided on the connecting part 42, and the reinforcing ribs 421 extend to the flanging 43.

[0073] The reinforcing ribs 421 are raised structures integrally formed along the connecting part 42. In this embodiment, both the connecting part 42 and the reinforcing ribs 421 have four, distributed at intervals of 90 degrees. The reinforcing ribs 421 extend from the tightening part 41 to the flanging 43 and continue onto the flanging 43, enhancing the performance of resisting bending and torsional forces.

[0074] At the same time, the reinforcing ribs 421 not only increase the contact area with the foam but also enhance the anchoring effect of the insert 40.

[0075] Such as Figure 3 and 5 As shown, the freezer also includes an air duct cover plate 70, the air duct cover plate 70 is arranged between the evaporation upper cover 30 and the inner container 10, and the connecting piece 50 passes through and connects the evaporation upper cover 30, the air duct cover plate 70, the inner container 10, and the thermal insulation layer 20 in sequence.

[0076] The air duct cover plate 70 can be made of plastic material, which is shaped to match the evaporation upper cover 30. Multiple air outlet holes are provided on the cover plate to guide the cold air from the evaporator chamber 11 to the storage space, while preventing impurities from entering the air duct.

[0077] The connecting member 50 adopts a "one-through-four" design, passing through the evaporation upper cover 30, the air duct cover plate 70, the inner tank 10 and the extending member 40 in sequence from the inner side of the storage space, and finally fixed in the thermal insulation layer 20 to tightly connect all components into a whole. The addition of the air duct cover plate 70 further enhances the sealing performance and structural stability of the air duct system.

[0078] As Figure 3 and 5 shown, the refrigerator also includes a curvature sensor 60, which is abutted between the evaporation upper cover 30 and the air duct cover plate 70, or between the air duct cover plate 70 and the inner tank 10.

[0079] In the prior art, when air leakage occurs due to the flash seam, it is difficult to detect the problem in time, increasing the risk of failure. And when problems occur, since it is not a systematic collapse problem but a long-term adverse effect, it is also difficult to troubleshoot.

[0080] In this embodiment, a curvature sensor 60 is introduced to monitor the deformation of the air duct system and achieve a warning function.

[0081] The curvature sensor 60 is fixed on the inner or outer side of the air duct cover plate 70, located between the evaporation upper cover 30 and the air duct cover plate 70, and firmly attached by an adhesive.

[0082] The curvature sensor 60 adopts a resistive curvature sensor 60, which can detect local deformation and output an electrical signal. The sensitivity of the sensor is set to detect the deformation of the minimum preset threshold (for example, 2 mm).

[0083] When the deformation amount exceeds the preset threshold (2 mm), the sensor triggers a signal, which is transmitted to the refrigerator control system and a prompt for the user to check or reinforce is given on the display panel.

[0084] The curvature sensor 60 can detect the deformation of the air duct cover plate 70 or the evaporation upper cover 30 in real time, prevent seal failure, and the warning signal helps to quickly locate the problem and improve the maintenance efficiency; and through the prompt on the display panel, the user can take timely measures to avoid the decline of refrigeration performance.

[0085] As Figure 8 and 9 shown, the evaporation upper cover 30 includes a groove body 311, the groove body 311 includes a abutting surface 312 and a perforation 313 arranged in the vertical direction, the connecting member 50 includes an abutting portion 51 and a screw rod 52, the screw rod 52 is inserted into the perforation 313, and the abutting portion 51 abuts against the abutting surface 312.

[0086] The tank body 311 is located on the outer surface of the evaporation upper cover 30 and is stepped. The tank body 311 is provided with a perforation 313 whose diameter is slightly larger than that of the screw rod 52, facilitating the passing of the connecting piece 50. The tank body 311 can provide positioning and guidance, simplifying the installation process of the connecting piece 50.

[0087] The side wall of the tank body 311 is a smooth vertical surface, serving as the abutting surface 312, which is in close contact with the abutting portion 51 of the connecting piece 50. The abutting surface 312 increases the contact area, disperses stress, and improves the fixing reliability.

[0088] The connecting piece 50 includes a flat abutting portion 51 (circular or hexagonal) and a threaded screw rod 52. During installation, the screw rod 52 passes through the perforation 313 of the tank body 311, and the abutting portion 51 is fixed in fit with the abutting surface 312.

[0089] As Figure 8 shown, the evaporation upper cover 30 includes an evaporation cover plate 31, an evaporation heat-insulating member 32, and an evaporation cap 33. The evaporation heat-insulating member 32 is arranged on the side of the evaporation cover plate 31 facing the evaporator chamber 11. The tank body 311 is arranged on the evaporation cover plate 31. The evaporation cap 33 closes the tank body 311, and the outer surface of the evaporation cap 33 is flush with the outer surface of the evaporation cover plate 31.

[0090] The evaporation upper cover 30 is composed of an evaporation cover plate 31 made of ABS plastic, an evaporation heat-insulating member 32 formed by polyurethane foam, and an evaporation cap 33.

[0091] The tank body 311 is located on the outer surface of the evaporation cover plate 31. The evaporation cap 33 also uses ABS plastic, which matches the shape of the tank body 311 and is fixed by a buckle. Its outer surface is flush with the evaporation cover plate 31 to close the tank body 311.

[0092] The evaporation cap 33 closes the tank body 311, preventing dust and water vapor from entering the evaporator chamber 11, protecting against external impact or corrosion, and extending the service life. Moreover, the evaporation cap 33 makes the surface of the evaporation cover plate 31 flat without concavities or convexities, facilitating cleaning and improving the overall appearance.

[0093] Compared with the conventional technology, the present embodiment has the following beneficial effects:

[0094] This refrigerator tightly combines the evaporation upper cover 30, the inner liner 10, the heat-insulating layer 20, and the extending member 40 into an integral structure. When shrinkage deformation occurs, the heat-insulating layer 20 serves as a stable "anchor point" and provides a reverse pulling force through the extending member 40. This pulling force is transmitted to other connecting parts 42, effectively offsetting the deformation caused by the low-temperature shrinkage of plastic parts, thereby preventing the generation of air duct flash seams. Therefore, this refrigerator makes full use of the stability of the heat-insulating layer 20, significantly improving the sealing performance and reliability of the air-cooled refrigerator, bringing a more efficient refrigeration experience and a longer equipment service life to users.

[0095] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0096] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigerator, characterized in that: include: Box shell; An inner container (10) is arranged in the box shell, and a storage space and an evaporator compartment (11) are arranged in the inner container (10); A heat-insulating layer (20) disposed between the inner container (10) and the box shell; An evaporation upper cover (30) is disposed on the evaporator bin (11), and the evaporation upper cover (30) and the evaporator bin (11) together enclose an evaporation space (110); An insert (40) inserted into the thermal insulation layer (20); A connecting piece (50) passes through the storage space in sequence and connects the evaporation upper cover (30), the inner container (10) and the thermal insulation layer (20).

2. The refrigerator according to claim 1, characterized in that: The extending member (40) comprises a tensioning portion (41), a flange (43) and a connecting portion (42), wherein the tensioning portion (41) is close to the inner liner (10), the flange (43) is far away from the inner liner (10), and the connecting portion (42) is connected between the tensioning portion (41) and the flange (43), and the extending direction of the flange (43) intersects with the connecting direction of the connecting member (50).

3. The refrigerator according to claim 2, characterized in that: The heat-insulating layer (20) is configured as a foaming material, and the extending member (40) extends into the foaming material.

4. The refrigerator according to claim 3, characterized in that: The tensioning portion (41), the flange (43) and the connecting portion (42) are all provided with through holes (44) for the foaming material to pass through.

5. The refrigerator according to claim 4, characterized in that: The flange (43) is configured in a circular ring shape, and the through holes (44) on the flange (43) are configured in the form of a plurality of circles surrounding the flange (43); The tightening portion (41) is circular, a threaded hole (411) is provided at the center of the tightening portion (41), the connecting piece (50) is connected to the threaded hole (411), and the through holes (44) of the tightening portion (41) are provided around the threaded hole (411).

6. The refrigerator according to claim 5, characterized in that: A raised reinforcing rib (421) is provided on the connecting portion (42), and the reinforcing rib (421) extends to the flange (43).

7. The refrigerator according to claim 1, characterized in that: The refrigerator further comprises an air duct cover plate (70), wherein the air duct cover plate (70) is arranged between the evaporation upper cover (30) and the inner liner (10), and the connecting member (50) passes through and connects the evaporation upper cover (30), the air duct cover plate (70), the inner liner (10) and the thermal insulation layer (20) in sequence.

8. The refrigerator according to claim 7, characterized in that: The refrigerator further comprises a curvature sensor (60), wherein the curvature sensor (60) is abutted between the evaporation upper cover (30) and the air duct cover plate (70), or between the air duct cover plate (70) and the inner container (10).

9. The refrigerator according to claim 1, characterized in that: The evaporation upper cover (30) comprises a groove body (311), the groove body (311) comprises a supporting surface (312) and a through hole (313) arranged in a vertical direction, the connecting piece (50) comprises a supporting portion (51) and a screw rod (52), the screw rod (52) is inserted into the through hole (313), and the supporting portion (51) is in contact with the supporting surface (312).

10. The refrigerator according to claim 9, characterized in that: The evaporation upper cover (30) comprises an evaporation cover plate (31), an evaporation heat-insulating component (32) and an evaporation cap (33); the evaporation heat-insulating component (32) is arranged on a side of the evaporation cover plate (31) facing the evaporator bin (11); the groove body (311) is arranged on the evaporation cover plate (31); the evaporation cap (33) closes the groove body (311); and the outer surface of the evaporation cap (33) is flush with the outer surface of the evaporation cover plate (31).

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