Refrigerator

Abstract

The refrigerator comprises a refrigerator body and a door body, the refrigerator body comprises a refrigerator shell, an inner container is arranged in the refrigerator shell, the inner container comprises a surrounding plate and a bottom plate, the surrounding plate and the bottom plate define a refrigeration space, and the surrounding plate comprises a plurality of first plane walls and first cambered surface walls connected between every two adjacent first plane walls; a plurality of refrigerant circulation channels are formed in the heat exchange pipe, the heat exchange pipe comprises a second plane wall, the heat exchange pipe is wound around the outer wall of the surrounding plate, the second plane wall is attached to the outer wall of the surrounding plate, the heat exchange pipe passes through each first cambered surface wall once, the attaching reliability of the inner container and the heat exchange pipe is improved, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator. Background Art

[0002] The refrigerator includes a cabinet body and a door body. The cabinet body includes a cabinet shell, an inner liner and an evaporator. The cabinet shell forms a receiving cavity with an open top. The inner liner is arranged in the receiving cavity of the cabinet shell. The inner liner surrounds a refrigerated space with an open top. The evaporator tube (heat exchange tube) is arranged between the cabinet shell and the inner liner. The heat exchange tube exchanges heat with the inner liner to conduct heat to realize the refrigeration function in the refrigerated space. The door body is configured to close or open the refrigerated space.

[0003] The cabinet processing process includes: the inner tank consists of two parts: the enclosure and the bottom plate. The enclosure is first bent and pressed into a ring shape, and then spliced ​​with the bottom plate to form the inner tank. Then the heat exchange tube is wound around the outer side of the inner tank in a spiral way, and then fixed with heat-conducting aluminum foil tape. This production plan has the following disadvantages:

[0004] (1) The heat exchange tube is a round tube or a D-shaped tube. The contact area between the heat exchange tube and the inner tank is small, and the heat exchange efficiency is low.

[0005] (2) The heat exchange tube is supplied in the form of a coiled tube. It is taken out on site as it is coiled. It is straightened while being coiled. During this process, the heat exchange tube will be twisted. If the straightening state is not ideal, the heat exchange tube will be in intermittent contact with the inner liner panel, reducing the heat exchange efficiency.

[0006] (3) When the heat exchange tube is spirally wound around the inner liner, there are many bending positions. Due to the different material strengths of the heat exchange tube and the inner liner, the heat exchange tube and the liner are not well fitted during bending, which reduces the heat exchange efficiency.

[0007] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0008] In view of the problems pointed out in the background technology, the utility model provides a refrigerator to improve the reliability of the fitting between the inner tank and the heat exchange tube and improve the heat exchange efficiency.

[0009] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0010] In some embodiments, a refrigerator is provided, comprising:

[0011] The cabinet body forms a refrigerated space;

[0012] a door body, configured to close or open the refrigerated space;

[0013] The cabinet comprises:

[0014] A cabinet shell is formed with a receiving cavity;

[0015] An inner container is arranged in the accommodating cavity, the inner container comprises a surrounding plate and a bottom plate, the surrounding plate and the bottom plate enclose the refrigerated space, the surrounding plate comprises a plurality of first plane walls and a first curved wall connected between two adjacent first plane walls;

[0016] The heat exchange tube has multiple refrigerant flow channels formed inside. The heat exchange tube is a microchannel heat exchange tube, which helps to improve the heat exchange efficiency.

[0017] The heat exchange tube includes a second plane wall, and the heat exchange tube is wound around the outer wall of the enclosure. The second plane wall is fitted with the outer wall of the enclosure. The heat exchange tube passes through each of the first curved walls once, thereby reducing the number of times the heat exchange tube is bent, improving the reliability of the fit between the heat exchange tube and the inner tank, and thus improving the heat exchange efficiency.

[0018] In some embodiments, the heat exchange tube includes a plurality of first tube segments, a plurality of second tube segments, and a plurality of bent tube segments, wherein the bent tube segments are connected between adjacent first tube segments and second tube segments, the first tube segments extend along the height direction of the enclosure, and the second tube segments extend along a direction perpendicular to the height of the enclosure;

[0019] The plurality of first pipe segments and the plurality of curved pipe segments are arranged outside the first plane wall;

[0020] A portion of the plurality of second pipe segments is disposed outside the first plane wall, and another portion passes through the first arc wall.

[0021] In some embodiments, the enclosure includes a first enclosure and a second enclosure, wherein the second enclosure is formed by extending downward from a portion of a lower side edge of the first enclosure;

[0022] The plurality of first pipe segments include a first vertical pipe segment and a second vertical pipe segment, wherein the height of the first vertical pipe segment is greater than the height of the second vertical pipe segment;

[0023] The first vertical pipe section is arranged on the outer side of the first plane wall of the first enclosure plate and the second enclosure plate, and the second vertical pipe section is arranged on the outer side of the first plane wall of the first enclosure plate.

[0024] In some embodiments, the distance between two adjacent first pipe segments ranges from 150 to 400 mm.

[0025] In some embodiments, the enclosure includes a first enclosure and a second enclosure, wherein the second enclosure is formed by extending downward from a portion of a lower side edge of the first enclosure;

[0026] The plurality of second pipe segments include a first transverse pipe segment and a second transverse pipe segment, wherein the length of the first transverse pipe segment is greater than the length of the second transverse pipe segment;

[0027] The first transverse pipe section is arranged on the outer side of the first plane wall of the first enclosure plate, and the second transverse pipe section is arranged on the outer side of the first plane wall of the second enclosure plate.

[0028] In some embodiments, the distance between two adjacent second pipe segments ranges from 150 to 400 mm.

[0029] In some embodiments, the bending radius of the curved pipe segment ranges from 30 to 60 mm.

[0030] In some embodiments, the bending radius of the second pipe segment is R1, the bending radius of the first curved wall is R2, the wall thickness of the enclosure is T1, the thickness of the heat exchange tube in a direction perpendicular to the enclosure is T2, and R1-R2=0.5×(T1+T2).

[0031] In some embodiments, the enclosure is formed by bending a whole metal plate, a seam is formed at the bending joint of the metal plate, and the seam is located on the first plane wall;

[0032] The end of the heat exchange tube is provided with a pipeline connecting portion, and there is a distance between the pipeline connecting portion and the joint.

[0033] In some embodiments, a refrigerator is provided, comprising:

[0034] The cabinet body forms a refrigerated space;

[0035] a door body, configured to close or open the refrigerated space;

[0036] The cabinet comprises:

[0037] A cabinet shell is formed with a receiving cavity;

[0038] An inner container is arranged in the accommodating cavity, the inner container comprises a surrounding plate and a bottom plate, the surrounding plate and the bottom plate enclose the refrigerated space, the surrounding plate comprises a plurality of first plane walls and a first curved wall connected between two adjacent first plane walls;

[0039] A heat exchange tube having a plurality of refrigerant flow channels formed therein, the heat exchange tube comprising a second plane wall, the heat exchange tube being wound around the outer wall of the enclosure, the second plane wall being in contact with the outer wall of the enclosure, the heat exchange tube comprising a plurality of first heat exchange tubes and a plurality of second heat exchange tubes, the second heat exchange tube being connected between two adjacent first heat exchange tubes, the first heat exchange tube being arranged on the outer side of each of the first plane walls, and the second heat exchange tube being arranged on the outer side of each of the first curved walls.

[0040] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0042] Figure 1 is a structural diagram of a refrigerator according to some embodiments;

[0043] Figure 2 is a structural diagram of an inner liner according to some embodiments;

[0044] Figure 3 A structural diagram of an inner tank and a heat exchange tube according to some prior arts;

[0045] Figure 4 is an expanded view of a panel according to some embodiments;

[0046] Figure 5 A structural diagram of an inner tank and a heat exchange tube according to some embodiments;

[0047] Figure 6 is a structural diagram of a planar coil according to some embodiments;

[0048] Figure 7 A structural diagram of a planar coil and a shroud according to some embodiments;

[0049] Figure 8 is another structural diagram of an inner tank and a heat exchange tube according to some embodiments;

[0050] Fig. 9 is another structural diagram of a planar coil according to some embodiments;

[0051] Fig.10 is another structural diagram of a planar coil and a shroud according to some embodiments;

[0052] Fig.11 is another structural diagram of a planar coil according to some embodiments;

[0053] Fig.12 is another structural diagram of a planar coil and a shroud according to some embodiments;

[0054] Fig.13is a structural diagram of a heat exchange tube according to some embodiments;

[0055] Fig.14 A structural diagram of a first curved wall and a curved pipe segment according to some embodiments;

[0056] Fig.15 A structural diagram of an inner liner seam according to some embodiments.

[0057] Reference numerals:

[0058] 10. Cabinet;

[0059] 20. Door body;

[0060] 100, cabinet shell; 110, heat dissipation hole;

[0061] 200, inner liner; 210, refrigerated space; 220, enclosure; 221, first plane wall; 222, first curved wall; 223, first enclosure; 224, second enclosure; 225, first flange; 226, second flange; 230, bottom plate; 240, clearance space; 250, joint;

[0062] 300, heat exchange tube; 310, first tube section; 311, first vertical tube section; 312, second vertical tube section; 320, second tube section; 321, first horizontal tube section; 322, second horizontal tube section; 330, curved tube section; 340, second plane wall; 350, second curved wall; 360, refrigerant flow channel; 370, pipeline connection portion; 381, first heat exchange tube; 382, ​​second heat exchange tube;

[0063] 400, sheet metal;

[0064] 500. Flat coil. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0066] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are 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 device or element referred to 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.

[0067] 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0068] 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.

[0069] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0070] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0071] The refrigerator includes a cabinet body and a door body. The cabinet body includes a cabinet shell, an inner liner and an evaporator. The cabinet shell forms a receiving cavity with an open top. The inner liner is arranged in the receiving cavity of the cabinet shell. The inner liner surrounds a refrigerated space with an open top. The evaporator tube (heat exchange tube) is arranged between the cabinet shell and the inner liner. The heat exchange tube exchanges heat with the inner liner to conduct heat to realize the refrigeration function in the refrigerated space. The door body is configured to close or open the refrigerated space.

[0072] The cabinet processing process includes: Figure 3 The inner liner 200 includes a panel 220 and a bottom plate 230. The panel 220 is first bent and pressed into a ring shape, and then spliced ​​with the bottom plate 230 to form the inner liner 200. Then, the heat exchange tube 300 is wound around the outer side of the inner liner 200 in a spiral winding manner, and then fixed with a heat-conducting aluminum foil tape. This production scheme has the following disadvantages:

[0073] (1) The heat exchange tube 300 is a round tube or a D-shaped tube. The contact area between the heat exchange tube 300 and the inner tank 200 is small, and the heat exchange efficiency is low.

[0074] (2) The heat exchange tube 300 is supplied in the form of a circular coil and is taken out on site as it is wound. The tube is straightened while being wound around the inner liner. During this process, the heat exchange tube 300 will be twisted. When the straightening state is not ideal, the heat exchange tube 300 will be in intermittent contact with the enclosure 220 of the inner liner 200, thereby reducing the heat exchange efficiency.

[0075] (3) When the heat exchange tube 300 is spirally wound around the inner liner 200, there are many bending positions. Due to the different material strengths of the heat exchange tube 300 and the inner liner 200, the heat exchange tube 300 and the inner liner 200 are poorly fitted during bending, thereby reducing the heat exchange efficiency.

[0076] In order to solve the above technical problems, the refrigerator disclosed in the present invention, Figure 1 The structure diagram of a refrigerator includes a cabinet body 10, and a refrigerated space 210 is formed in the cabinet body 10. It is used to store items. The top of the refrigerated space 210 is open, which is convenient for storing and taking out items.

[0077] The refrigerator includes a door body 20 , and the door body 20 is configured to close or open a refrigerated space 210 .

[0078] The cabinet body 10 includes a cabinet shell 100 , and a receiving cavity is formed in the cabinet shell 100 .

[0079] The cabinet 10 includes an inner container 200. Figure 2 1 is a structural diagram of the inner liner 200 , which is disposed in the receiving cavity of the cabinet 100 . The inner liner 200 encloses a refrigerated space 210 .

[0080] The cabinet body 10 includes a heat exchange tube 300 , which is wound around the outer peripheral wall of the inner liner 200 . The heat exchange tube 300 is located between the inner liner 200 and the cabinet shell 100 . Figure 5 It is a structural diagram of the inner tank 200 and the heat exchange tube 300. Figure 6 Another structural diagram of the inner liner 200 and the heat exchange tube 300.

[0081] The refrigerator includes a compressor and a condenser. When the refrigerator is working, the gaseous refrigerant discharged by the compressor flows through the condenser, and the condenser dissipates heat to the outside to liquefy the refrigerant. The liquefied refrigerant flows through the heat exchange tube 300, and the refrigerant absorbs heat in the refrigerated space 210 through the heat exchange tube 300 and the inner tank 200. The refrigerant absorbs heat and vaporizes. The vaporized refrigerant flows back to the compressor to form a refrigeration cycle.

[0082] Reference Figure 2 A clearance space 240 is formed at the bottom of the inner tank 200 , and the compressor and the condenser are arranged in the clearance space 240 .

[0083] Reference Figure 1 The cabinet shell 100 is provided with a heat dissipation hole 110 , and the heat dissipation hole 110 is directly opposite to the clearance space 240 , and the heat generated by the compressor and the condenser when working is discharged through the heat dissipation hole 110 .

[0084] In some embodiments, reference Figure 2 The inner liner 200 includes a surrounding plate 220, which forms a circumferential side wall of the inner liner 200. The surrounding plate 220 encloses a space that passes through from top to bottom.

[0085] The inner container 200 includes a bottom plate 230, which constitutes the bottom wall of the inner container 200. The bottom plate 230 closes the bottom opening of the space surrounded by the enclosure 220. The enclosure 220 and the bottom plate 230 enclose a refrigerated space 210 with an open top.

[0086] The enclosure 220 includes a plurality of first plane walls 221 and a first arc surface wall 222 connected between two adjacent first plane walls 221. The first arc surface wall 222 is equivalent to a transition connecting wall between two adjacent first plane walls 221.

[0087] For example, refer to Figure 2The enclosure 220 includes four first planar walls 221 and four first curved walls 222 .

[0088] Reference Figure 5 The four first plane walls 221 are respectively recorded as the first plane wall 221A, the first plane wall 221B, the first plane wall 221C, and the first plane wall 221D. The first plane wall 221A and the first plane wall 221C are arranged opposite to each other to form the front side wall and the rear side wall of the inner liner 200. The first plane wall 221B and the first plane wall 221D are arranged opposite to each other to form the left side wall and the right side wall of the inner liner 200.

[0089] The four first arc surface walls 222 are respectively marked as a first arc surface wall 222A, a first arc surface wall 222B, a first arc surface wall 222C, and a first arc surface wall 222D.

[0090] In some embodiments, reference Fig.13 A plurality of refrigerant flow channels 360 are formed inside the heat exchange tube 300. The heat exchange tube 300 is a microchannel heat exchange tube, which helps to improve the heat exchange efficiency.

[0091] In some embodiments, reference Fig.13 The heat exchange tube 300 is a flat tube. The heat exchange tube 300 includes two second plane walls 340 and two second arc walls 350. The two second plane walls 340 are arranged opposite to each other, and the two second arc walls 350 are arranged opposite to each other. The two second plane walls 340 are transitionally connected by the second arc walls 350.

[0092] In some embodiments, reference Figure 5 or Figure 8 The heat exchange tube 300 is wound around the outer wall of the enclosure 220, wherein one of the second plane walls 340 is in contact with the outer wall of the enclosure 220, thereby increasing the contact area between the heat exchange tube 300 and the enclosure 220 and helping to improve the heat exchange efficiency.

[0093] The heat exchange tube 300 adopts a microchannel heat exchange tube. Figure 3 The following problems may occur in the following way:

[0094] (1) If the microchannel heat exchange tube is supplied in rolls, when it goes through the coiling, cutting and welding processes at the production site, the heat exchange tube 300 is prone to be twisted during coiling, and the second plane wall 340 of the heat exchange tube 300 and the enclosure 220 are not well fitted, thereby reducing the heat exchange efficiency.

[0095] (2) If the microchannel heat exchange tube is cut and formed in advance, the two ends of the connection are welded, and then transported to the production site, on the one hand, the heat exchange tube 300 is too long and the transportation cost is high. On the other hand, the second plane wall 340 and the enclosure 220 will not fit well when the heat exchange tube is wrapped around the tube, thereby reducing the heat exchange efficiency.

[0096] In order to solve this technical problem, in some embodiments, the heat exchange tube 300 passes through each first curved wall 222 once, reducing the number of times the heat exchange tube 300 is bent, improving the reliability of the fit between the heat exchange tube 300 and the inner liner 200, and thus improving the heat exchange efficiency.

[0097] In other words, the heat exchange tube 300 extends on each first plane wall 221, for example, in an S-shaped manner, increasing the contact area between the heat exchange tube 300 and the first plane wall 221, thereby improving the heat exchange efficiency. The heat exchange tubes 300 on two adjacent first plane walls 221 extend along the first curved wall 222, so that the heat exchange tubes 300 can be continuously routed on four first plane walls 221, realizing the supply of finished products without the need for on-site welding of adapters.

[0098] In some embodiments, reference Figure 5 or Figure 8 The heat exchange tube 300 includes a plurality of first heat exchange tubes 381 and a plurality of second heat exchange tubes 382. The second heat exchange tube 382 is connected between two adjacent first heat exchange tubes 381. A first heat exchange tube 381 is disposed on the outer side of each first plane wall 221, and a second heat exchange tube 382 is disposed on the outer side of each first curved wall 222.

[0099] For example, the heat exchange tube 300 includes four first heat exchange tubes 381 and four second heat exchange tubes 382. The four first heat exchange tubes 381 are arranged in one-to-one correspondence with the four first plane walls 221, and the four second heat exchange tubes 382 are arranged in one-to-one correspondence with the four second curved walls 350.

[0100] Each first heat exchange tube 381 extends on the corresponding first plane wall 221, for example, in an S-shaped manner, to increase the contact area between the heat exchange tube 300 and the first plane wall 221, thereby improving the heat exchange efficiency. The two first heat exchange tubes 381 on two adjacent first plane walls 221 are connected by a second heat exchange tube 382, ​​and the second heat exchange tube 382 passes around the first curved wall 222, thereby realizing continuous pipe routing between two adjacent first heat exchange tubes 381, and realizing the supply of finished products without the need for on-site welding of adapters.

[0101] Each first curved wall 222 passes through a second heat exchange tube 382 , which reduces the number of times the heat exchange tube 300 is bent, improves the reliability of the fit between the heat exchange tube 300 and the inner liner 200 , and thus improves the heat exchange efficiency.

[0102] In some embodiments, the enclosure 220 is formed by bending a whole metal sheet 400, and a seam 250 is formed at the bending joint of the metal sheet 400. Figure 5 .

[0103] Reference Figure 4It is a structural diagram of the metal plate 400 when it is unfolded. The dotted line is the bending position. The first curved wall 222 is formed between two adjacent dotted lines after bending, and the first plane wall 221 is formed between two distant dotted lines.

[0104] In some embodiments, the enclosure 220 is formed by bending an aluminum plate or a steel plate, and the steel plate has an anti-corrosion coating. The aluminum plate or the steel plate helps to improve the heat exchange efficiency.

[0105] In some embodiments, the metal plate 400 and the heat exchange tube 300 are made of the same metal material. For example, the metal plate 400 is an aluminum plate, and the heat exchange tube 300 is an aluminum tube.

[0106] The metal plate 400 and the heat exchange tube 300 are made of the same metal material, which helps them fit better when bent.

[0107] In some embodiments, the processing of the liner 200 includes:

[0108] Cut the metal sheet 400 according to the size required, refer to Figure 4 ;

[0109] A planar coil 500 having a size smaller than that of the metal sheet 400 and a contour shape similar to that of the metal sheet 400 is manufactured, referring to Figure 6 or Fig. 9 or Fig.11 ;

[0110] Reference Figure 7 or Fig.10 or Fig.12 , stack the flat coil 500 on the metal plate 400, press the flat coil 500 and the metal plate 400 tightly together, and fix the flat coil 500 and the metal plate 400 together by vulcanization process or thermal conductive glue or double-sided tape or aluminum foil;

[0111] The metal plate 400 and the flat coil 500 are bent and enclosed together, the metal plate 400 is bent and enclosed to form an enclosure 220, and the flat coil 500 is bent to form a heat exchange tube 300;

[0112] The bottom plate 230 is fixedly installed to the bottom opening of the enclosure 220, and the inner liner 200 is processed.

[0113] In some embodiments, the metal sheet 400 and the planar coil 500 are bent together, and the planar coil 500 is bent only at the positions of the four first curved walls 222. The number of bending positions is small, which reduces the number of times the heat exchange tube 300 is bent, helps to improve the reliability of the fit between the heat exchange tube 300 and the inner liner 200, thereby improving the heat exchange efficiency.

[0114] In some embodiments, reference Figure 5 and Figure 8 , the joint 250 is located on the first plane wall 221. A pipe connection portion 370 is disposed at the end of the heat exchange tube 300, and there is a distance between the pipe connection portion 370 and the joint 250.

[0115] The pipe routing of the heat exchange tube 300 avoids the joint 250 to prevent the uneven structure at the joint 250 from reducing the reliable fit between the heat exchange tube 300 and the enclosure 220, thereby further improving the heat exchange efficiency.

[0116] In some embodiments, reference Figure 5 and Figure 6 as well as Figure 8 and Fig. 9 The heat exchange tube 300 includes a plurality of first tube segments 310 , which extend along the height direction of the enclosure 220 and are vertical tubes. The plurality of first tube segments 310 are disposed outside the first plane wall 221 .

[0117] The heat exchange tube 300 includes a plurality of second tube segments 320, which extend in a direction perpendicular to the height of the enclosure 220 and are transverse tubes. Some of the plurality of second tube segments 320 are disposed outside the first plane wall 221, and the other parts pass through the first curved wall 222.

[0118] The heat exchange tube 300 includes a plurality of curved tube sections 330 , and the curved tube sections 330 are connected between adjacent first tube sections 310 and second tube sections 320 . The plurality of curved tube sections 330 are disposed outside the first plane wall 221 .

[0119] The curved pipe section 330 is equivalent to a transition pipe section between the first pipe section 310 and the second pipe section 320 .

[0120] When the planar coil 500 is bent together with the metal plate 400, only a portion of the second tube section 320 of the planar coil 500 is bent, and the heat exchange tube 300 is bent less times, which helps to improve the reliability of the fit between the heat exchange tube 300 and the inner liner 200 and improve the heat exchange efficiency.

[0121] The first pipe section 310 and the second pipe section 320 are arranged on the first plane wall 221 of the enclosure 220 in a suitable manner, so as to increase the contact area between the heat exchange pipe 300 and the first plane wall 221 , thereby helping to improve the heat exchange efficiency.

[0122] In some embodiments, reference Fig.13 The width of the heat exchange tube 300 is W, and the range of W is 15-40 mm. Increasing the contact area between the heat exchange tube 300 and the enclosure 220 helps to improve the heat exchange efficiency.

[0123] In some embodiments, reference Figure 8The bending radius of the curved pipe section 330 is R3, and the range of R3 is 30-60 mm, which helps to improve the bending reliability of the curved pipe section 330 and avoid breakage and the like.

[0124] In some embodiments, reference Fig.14 , the bending radius of the second pipe section 320 is R1, the bending radius of the first curved wall 222 is R2, and the wall thickness of the enclosure 220 is T1. Fig.13 The thickness of the heat exchange tube 300 along the direction perpendicular to the enclosure 220 is T2, R1-R2=0.5×(T1+T2), so that the second tube section 320 matches the first curved wall 222, thereby improving the close fit between the second tube section 320 and the first curved wall 222.

[0125] In some embodiments, reference Figure 2 and Figure 4 The enclosure 220 includes a first enclosure 223 and a second enclosure 224, and the second enclosure 224 is formed by a portion of the lower side of the first enclosure 223 extending downward. The first enclosure 223 and the second enclosure 224 constitute a whole metal plate 400. The left and right opposite sides of the first enclosure 223 are butted to form a joint 250.

[0126] In some embodiments, the seam 250 is located on the first planar wall 221 with a small height, and the length of the seam 250 is short, which helps to improve the reliability of the metal plate 400 after being enclosed.

[0127] In some embodiments, reference Fig.15 A first flange 225 is provided on one side of the first enclosure 223, and a second flange 226 is provided on the other opposite side of the first enclosure 223. The first flange 225 and the second flange 226 are buckled with each other, and then the first flange 225 and the second flange 226 are pressed together by a pressing device to form a seam 250.

[0128] In some embodiments, reference Figure 5 and Figure 6 The plurality of first pipe segments 310 include a first vertical pipe segment 311 and a second vertical pipe segment 312 , and the height of the first vertical pipe segment 311 is greater than the height of the second vertical pipe segment 312 .

[0129] The first vertical pipe section 311 is disposed on the outer side of the first planar wall 221 of the first enclosure plate 223 and the second enclosure plate 224 , and the second vertical pipe section 312 is disposed on the outer side of the first planar wall 221 of the first enclosure plate 223 .

[0130] The heat exchange tube 300 can pass through the entire enclosure 220 with fewer bends, thereby increasing the contact area between the heat exchange tube 300 and the enclosure 220, improving the fitting reliability between the heat exchange tube 300 and the enclosure 220, and improving the heat exchange efficiency.

[0131] In some embodiments, reference Figure 5 The distance between two adjacent first pipe sections 310 is D1, and the range of D is 150-400 mm. The first pipe sections 310 are reasonably arranged on the limited enclosure 220 to improve the heat exchange efficiency.

[0132] In some embodiments, reference Figure 8 and Fig. 9 The plurality of second pipe segments 320 include a first transverse pipe segment 321 and a second transverse pipe segment 322 , and the length of the first transverse pipe segment 321 is greater than the length of the second transverse pipe segment 322 .

[0133] The first transverse pipe section 321 is disposed on the outer side of the first plane wall 221 of the first enclosure plate 223 , and the second transverse pipe section 322 is disposed on the outer side of the first plane wall 221 of the second enclosure plate 224 .

[0134] The heat exchange tube 300 can pass through the entire enclosure 220 with fewer bends, thereby increasing the contact area between the heat exchange tube 300 and the enclosure 220, improving the fitting reliability between the heat exchange tube 300 and the enclosure 220, and improving the heat exchange efficiency.

[0135] Fig. 9 and Fig.10 as well as Fig.11 and Fig.12 There are two different ways of winding the heat exchange tube 300 , which can be selected as needed according to the size of the enclosure 220 .

[0136] In some embodiments, reference Figure 8 The distance between two adjacent second pipe sections 320 is D2, and the range of D2 is 150-400 mm. The second pipe sections 320 are reasonably arranged on the limited enclosure 220 to improve the heat exchange efficiency.

[0137] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0138] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A refrigerator, comprising: The cabinet body forms a refrigerated space; a door body, configured to close or open the refrigerated space; Characterized in that the cabinet comprises: A cabinet shell is formed with a receiving cavity; An inner container is arranged in the accommodating cavity, the inner container comprises a surrounding plate and a bottom plate, the surrounding plate and the bottom plate enclose the refrigerated space, the surrounding plate comprises a plurality of first plane walls and a first curved wall connected between two adjacent first plane walls; A heat exchange tube has a plurality of refrigerant flow channels formed therein, the heat exchange tube includes a second plane wall, the heat exchange tube is wound around the outer wall of the enclosure, the second plane wall is in contact with the outer wall of the enclosure, and the heat exchange tube passes through each of the first curved walls once.

2. The refrigerator according to claim 1, characterized in that: The heat exchange tube includes a plurality of first tube segments, a plurality of second tube segments and a plurality of bent tube segments, wherein the bent tube segments are connected between adjacent first tube segments and second tube segments, the first tube segments extend along the height direction of the enclosure plate, and the second tube segments extend along the direction perpendicular to the height of the enclosure plate; The plurality of first pipe segments and the plurality of curved pipe segments are arranged outside the first plane wall; A portion of the plurality of second pipe segments is disposed outside the first plane wall, and another portion passes through the first arc wall.

3. The refrigerator according to claim 2, characterized in that: The enclosure includes a first enclosure and a second enclosure, wherein the second enclosure is formed by extending downward from a portion of the lower side of the first enclosure; The plurality of first pipe segments include a first vertical pipe segment and a second vertical pipe segment, wherein the height of the first vertical pipe segment is greater than the height of the second vertical pipe segment; The first vertical pipe section is arranged on the outer side of the first plane wall of the first enclosure plate and the second enclosure plate, and the second vertical pipe section is arranged on the outer side of the first plane wall of the first enclosure plate.

4. The refrigerator according to claim 3, characterized in that: The distance between two adjacent first pipe sections ranges from 150 to 400 mm.

5. The refrigerator according to claim 2, characterized in that: The enclosure includes a first enclosure and a second enclosure, wherein the second enclosure is formed by extending downward from a portion of the lower side of the first enclosure; The plurality of second pipe segments include a first transverse pipe segment and a second transverse pipe segment, wherein the length of the first transverse pipe segment is greater than the length of the second transverse pipe segment; The first transverse pipe section is arranged on the outer side of the first plane wall of the first enclosure plate, and the second transverse pipe section is arranged on the outer side of the first plane wall of the second enclosure plate.

6. The refrigerator according to claim 5, characterized in that: The distance between two adjacent second pipe sections ranges from 150 to 400 mm.

7. The refrigerator according to any one of claims 2 to 6, characterized in that: The bending radius of the curved pipe section is in the range of 30-60 mm.

8. The refrigerator according to any one of claims 2 to 6, characterized in that: The bending radius of the second pipe section is R1, the bending radius of the first curved wall is R2, the wall thickness of the enclosure is T1, the thickness of the heat exchange tube in a direction perpendicular to the enclosure is T2, and R1-R2=0.5×(T1+T2).

9. The refrigerator according to any one of claims 1 to 6, characterized in that: The enclosure is formed by bending a whole metal plate, a seam is formed at the bending joint of the metal plate, and the seam is located on the first plane wall; The end of the heat exchange tube is provided with a pipeline connecting portion, and there is a distance between the pipeline connecting portion and the joint.

10. A refrigerator, comprising: The cabinet body forms a refrigerated space; a door body, configured to close or open the refrigerated space; Characterized in that the cabinet comprises: A cabinet shell is formed with a receiving cavity; An inner container is arranged in the accommodating cavity, the inner container comprises a surrounding plate and a bottom plate, the surrounding plate and the bottom plate enclose the refrigerated space, the surrounding plate comprises a plurality of first plane walls and a first curved wall connected between two adjacent first plane walls; A heat exchange tube having a plurality of refrigerant flow channels formed therein, the heat exchange tube including a second plane wall, the heat exchange tube being wound around the outer wall of the enclosure, the second plane wall being in contact with the outer wall of the enclosure, the heat exchange tube including a plurality of first heat exchange tubes and a plurality of second heat exchange tubes, the second heat exchange tube being connected between two adjacent first heat exchange tubes, the first heat exchange tube being arranged on the outer side of each of the first plane walls, and the second heat exchange tube being arranged on the outer side of each of the first curved walls.

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