Refrigerator

Abstract

The application discloses a refrigerator, comprising: a cabinet, a freezing chamber, a refrigerating chamber and a variable temperature chamber with a front opening are formed in the cabinet; a first connecting piece is arranged at the back of the freezing chamber and the variable temperature chamber, through holes of a first air duct, a second air duct and a third air duct are arranged in the first connecting piece at intervals, two ends of the first air duct are communicated with an air outlet of the refrigerating chamber and an air return respectively, two ends of the second air duct are communicated with an air supply of the variable temperature chamber and an air inlet of the variable temperature chamber respectively, and two ends of the third air duct are communicated with an air outlet of the variable temperature chamber and the air return respectively. In the application, the first connecting piece is arranged, the first air duct, the second air duct and the third air duct are arranged on the first connecting piece, the air supply of the variable temperature chamber, the air return of the refrigerating chamber and the air return of the variable temperature chamber share one connecting piece, pipeline arrangement is saved, installation is more convenient, and thus the cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of household appliances, and particularly relates to a refrigerator. BACKGROUND

[0002] The multi-temperature-zone refrigerator refers to a refrigerator with multiple temperature zones, and a typical example is a side-by-side three-temperature-zone refrigerator with a freezing chamber, a refrigerating chamber and a variable-temperature chamber. The conventional multi-temperature-zone refrigerator is composed of multiple refrigeration systems, and the refrigeration of different temperature zones of the refrigerator is realized by selecting different refrigeration systems. However, this way is relatively complex in structure, has a large refrigeration energy load and a high cost. At present, some multi-temperature-zone refrigerators can realize circulating air supply by setting a single refrigeration system in the freezing chamber and supplying cold air to the refrigerating chamber and the variable-temperature chamber through multiple air supply pipelines and returning air to the freezing chamber through multiple air return pipelines, so as to reduce the cost and the refrigeration energy consumption. However, in this way, there are too many pipelines, which are inconvenient to install and still have a relatively high cost. SUMMARY

[0003] The purpose of the present disclosure is to provide a refrigerator which can solve the problems of too many air supply and return pipelines, inconvenient installation and relatively high cost of the multi-temperature-zone refrigerator with a single refrigeration system.

[0004] The present disclosure discloses a refrigerator, comprising: a cabinet, a freezing chamber, a refrigerating chamber and a variable-temperature chamber are formed in the cabinet and have a front opening, a refrigerating chamber air outlet is formed on the inner wall of the refrigerating chamber, a variable-temperature chamber air inlet and a variable-temperature chamber air outlet are formed on the inner wall of the variable-temperature chamber, and a return air inlet is formed on the inner wall of the freezing chamber; the freezing chamber is communicated with the refrigerating chamber to supply cold air to the refrigerating chamber; a wind cavity is arranged in the freezing chamber, and a freezing chamber air inlet and a variable-temperature chamber air supply inlet are formed on the wind cavity; a refrigeration fan is arranged in the wind cavity, and the refrigeration fan is used to blow cold air to the freezing chamber air inlet and the variable-temperature chamber air supply inlet; a first connecting piece is arranged at the back of the freezing chamber and the variable-temperature chamber, and a first air duct, a second air duct and a third air duct are arranged in the first connecting piece and spaced apart; the two ends of the first air duct are respectively communicated with the refrigerating chamber air outlet and the return air inlet; the two ends of the second air duct are respectively communicated with the variable-temperature chamber air supply inlet and the variable-temperature chamber air inlet; and the two ends of the third air duct are respectively communicated with the variable-temperature chamber air outlet and the return air inlet.

[0005] In an exemplary embodiment of the present disclosure, the refrigerating chamber and the variable-temperature chamber are spaced apart in the up-down direction, and the refrigerating chamber and the variable-temperature chamber are located on the same side of the freezing chamber; the first air duct comprises a first section and a second section connected to the first section, the first section is communicated with the refrigerating chamber air outlet, the second section is communicated with the return air inlet, the second section protrudes in the front direction relative to the first section, the second air duct and the third air duct are spaced apart in the up-down direction, the second air duct is spaced apart from the first section in the front-rear direction, and the third air duct is spaced apart from the second section in the up-down direction.

[0006] In an exemplary embodiment of the present disclosure, a cover plate extends vertically in the freezing chamber, the cover plate and the rear wall of the freezing chamber enclosing the air cavity, the air inlet of the freezing chamber being arranged on the upper portion of the cover plate, and the air outlet of the variable-temperature chamber being arranged on the side wall of the variable-temperature chamber corresponding to the freezing chamber.

[0007] In an exemplary embodiment of the present disclosure, the first connecting member is arranged between the outer side wall of the freezing chamber and the outer side wall of the variable-temperature chamber, the air inlet and the air outlet of the variable-temperature chamber are arranged on the side wall of the variable-temperature chamber corresponding to the freezing chamber, the air return port is arranged on the side wall of the freezing chamber corresponding to the variable-temperature chamber, the two ends of the second air duct are respectively aligned with the air outlet of the variable-temperature chamber and the air inlet of the variable-temperature chamber, the two ends of the third air duct are respectively aligned with the air outlet of the variable-temperature chamber and the air return port, the air outlet of the variable-temperature chamber and the air return port are arranged in an upper and lower spaced manner, and the air inlet of the variable-temperature chamber and the air outlet of the variable-temperature chamber are arranged in an upper and lower spaced manner.

[0008] In an exemplary embodiment of the present disclosure, the first connecting member comprises a first shell and a second shell, the first shell covers the second shell, and the first air duct and the third air duct are formed between the first shell and the second shell, and the second air duct is arranged on the first shell or the second shell.

[0009] In an exemplary embodiment of the present disclosure, the upper portion of the rear wall of the freezing chamber corresponding to the air cavity is provided with a refrigerating chamber air outlet, and the upper portion of the rear wall of the refrigerating chamber is provided with a refrigerating chamber air inlet; the refrigerator further comprises a second connecting member arranged at the back of the refrigerating chamber and the freezing chamber, a fourth air duct is arranged in the second connecting member, and the two ends of the fourth air duct are respectively communicated with the refrigerating chamber air outlet and the refrigerating chamber air inlet.

[0010] In an exemplary embodiment of the present disclosure, a first air guide rib is further arranged on the inner side of the cover plate above the refrigeration fan, the first air guide rib separates the air inlet of the freezing chamber and the air outlet of the refrigerating chamber, and is used for guiding the cold air blown by the refrigeration fan to the air inlet of the freezing chamber and the air outlet of the refrigerating chamber respectively.

[0011] In an exemplary embodiment of the present disclosure, the refrigeration fan is arranged in the air cavity corresponding to the middle portion of the freezing chamber and close to the air outlet of the variable-temperature chamber, and a second air guide rib is further arranged on the air outlet side of the refrigeration fan, and the second air guide rib is used for guiding the cold air blown by the refrigeration fan to the air outlet of the variable-temperature chamber.

[0012] In an exemplary embodiment of the present disclosure, the second connecting member comprises a third shell and a fourth shell, the third shell covers the fourth shell, and the fourth air duct is formed between the third shell and the fourth shell.

[0013] In an exemplary embodiment of the present disclosure, a first air door is arranged at the air inlet of the refrigeration chamber for controlling opening and closing of the air inlet of the refrigeration chamber; and a second air door is arranged at the air inlet of the variable-temperature chamber for controlling opening and closing of the air inlet of the variable-temperature chamber.

[0014] The present application has the following beneficial effects:

[0015] In the present application, the first connecting member is provided, and the first air duct, the second air duct and the third air duct are arranged in the first connecting member, so that the air supply of the variable-temperature chamber, the air return of the refrigeration chamber and the air return of the variable-temperature chamber share one connecting member, the pipeline arrangement is saved, the installation is more convenient, and the cost is effectively reduced.

[0016] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 It is a schematic view of the front side structure of the refrigerator according to the present embodiment.

[0020] Figure 2 It is a schematic view of the rear side structure of the refrigerator according to the present embodiment.

[0021] Figure 3 It is a schematic view of the partial structure of the rear side of the refrigerator according to the present embodiment.

[0022] Figure 4 It is a side view of the freezing chamber of the refrigerator according to the present embodiment.

[0023] Figure 5 It is a side view of the variable-temperature chamber of the refrigerator according to the present embodiment.

[0024] Figure 6 It is a schematic view of the back structure of the cover plate in the refrigerator according to the present embodiment.

[0025] Figure 7 It is a schematic view of the structure of the first connecting member of the refrigerator according to the present embodiment.

[0026] Figure 8 is an exploded view. Figure 7

[0027] Figure 9 is a structural schematic view of another perspective of the first connecting piece in the refrigerator according to the present embodiment.

[0028] Figure 10 is a structural schematic view of the first shell mounted on the variable temperature chamber in the refrigerator according to the present embodiment.

[0029] Figure 11 is a structural schematic view of the third shell in the refrigerator according to the present embodiment.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 1, cabinet; 11, freezer chamber; 111, return air inlet; 112, freezer chamber air inlet; 113, variable temperature chamber air outlet; 114, cover plate; 115, refrigeration chamber air outlet; 116, first air guide rib; 117, second air guide rib; 12, refrigeration chamber; 121, refrigeration chamber air outlet; 122, refrigeration chamber air inlet; 123, first air door; 13, variable temperature chamber; 131, variable temperature chamber air inlet; 132, variable temperature chamber air outlet; 133, second air door; 2, refrigeration fan; 3, first connecting piece; 31, first air duct; 311, first section; 312, second section; 32, second air duct; 33, third air duct; 34, first shell; 341, guide column; 342, clamping groove; 35, second shell; 4, second connecting piece; 41, fourth air duct; 42, third shell; 421, overlapping portion; 422, clamping portion; 43, fourth shell; 5, evaporator. DETAILED DESCRIPTION

[0032] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art.

[0033] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the

[0034] ​The application will be described in further detail below with reference to the drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the drawings are exemplary and are intended to explain the application, but cannot be understood as limiting the application.

[0035] At present, the multi-temperature zone refrigerator can reduce the cost and energy consumption by setting a single refrigeration system in the freezer compartment and sending cold air to the refrigeration compartment and the variable temperature compartment through multiple air supply pipelines and returning air to the freezer compartment through multiple air return pipelines to achieve circulating air supply. However, in this way, there are too many pipelines, which are inconvenient to install, and the cost is still relatively high. The present application provides a refrigerator to solve the above problems.

[0036] For the convenience of description and understanding, the front side direction of the refrigerator facing the user is taken as the front side direction, and the direction away from the user is taken as the rear side direction.

[0037] Figure 1 The front side structure of the refrigerator according to the present embodiment is shown schematically. Figure 2 The rear side structure of the refrigerator according to the present embodiment is shown schematically. Figure 3 The partial structure of the rear side of the refrigerator according to the present embodiment is shown schematically.

[0038] Referring to Figures 1 to 3 The refrigerator is a device for storing goods at low temperature, such as various meats, vegetables and fruits, etc. Different goods require different storage temperatures. The multi-temperature zone refrigerator has multiple temperature zones with different temperatures to correspond to the storage of different types of goods. In the present embodiment, a three-temperature zone refrigerator is taken as an example for illustration. The refrigerator includes a cabinet 1, a refrigeration system, a first connecting member 3 and a second connecting member 4.

[0039] The cabinet 1 is the shell structure of the refrigerator, used to accommodate other components. The cabinet 1 is generally in the shape of a rectangular hollow cylinder, and the cabinet 1 forms a front side opening freezer compartment 11, a refrigeration compartment 12 and a variable temperature compartment 13. The temperature in the freezer compartment 11 is below zero, and the temperature is relatively low, which is mainly used to store meat that needs to be stored for a long time. The temperature in the refrigeration compartment 12 is relatively high, between 2℃ and 8℃, which is mainly used to store fruits and vegetables needed in daily life. The temperature in the variable temperature compartment 13 is between -3℃ and 2℃, which can better store food and make it easy to divide, and can meet more extensive use requirements.

[0040] The freezing chamber 11, the refrigerating chamber 12 and the variable-temperature chamber 13 can be respectively formed by a freezing chamber 11 tank, a refrigerating chamber 12 tank and a variable-temperature chamber 13 tank arranged in the cabinet 1, wherein the refrigerating chamber 12 and the variable-temperature chamber 13 are spaced apart in the up-down direction, the refrigerating chamber 12 and the variable-temperature chamber 13 are located on the same side of the freezing chamber 11, the refrigerating chamber 12 and the variable-temperature chamber 13 are connected by a middle beam at the front side, the freezing chamber 11 and the refrigerating chamber 12 and the variable-temperature chamber 13 are connected by a vertical beam, and the three doors are hinged at the front side of the cabinet 1 to correspond to the freezing chamber 11, the refrigerating chamber 12 and the variable-temperature chamber 13 to form a three-temperature-zone refrigerator with double doors. Of course, in some embodiments, the refrigerating chamber 12 and the variable-temperature chamber 13 can also be exchanged in the up-down direction, and the positions of the chambers can be adjusted according to the use requirements, and the number of the variable-temperature chambers 13 is not limited to one, but can also be multiple.

[0041] Figure 4 A side view of the freezing chamber of the refrigerator according to the embodiment. Figure 5 A side view of the variable-temperature chamber of the refrigerator according to the embodiment. Figure 6 A schematic view of the back structure of the cover plate of the refrigerator according to the embodiment.

[0042] Continuing to refer to Figures 4 to 6 The inner wall of the refrigerating chamber 12 is provided with a refrigerating chamber air inlet 122 and a refrigerating chamber air outlet 121, the inner wall of the variable-temperature chamber 13 is provided with a variable-temperature chamber air inlet 131 and a variable-temperature chamber air outlet 132, and the inner wall of the freezing chamber 11 is provided with a return air inlet 111, and the freezing chamber 11 is communicated with the refrigerating chamber 12.

[0043] The freezing chamber 11 is provided with an air cavity at the rear side, and the air cavity is provided with a freezing chamber air inlet 112, a refrigerating chamber air outlet 115 and a variable-temperature chamber air outlet 113. The refrigeration system includes an evaporator 5, a condenser, a compressor and a refrigeration fan 2, wherein the evaporator 5 and the refrigeration fan 2 are arranged in the air cavity, and the compressor and the condenser are arranged at the bottom of the cabinet 1. The working principle of the compressor and the condenser is the prior art, which will not be described here. The evaporator 5 is arranged in the air cavity and is used for cooling the air flowing therethrough to become cold air. The refrigeration fan 2 is arranged above the evaporator 5 and is used for blowing cold air to the freezing chamber air inlet 112, the refrigerating chamber air outlet 115 and the variable-temperature chamber air outlet 113.

[0044] The freezer compartment 11 is equipped with a vertically extending cover plate 114. The cover plate 114 and the rear wall of the freezer compartment 11 enclose the aforementioned air cavity. The cover plate 114 protects the evaporator 5 and the refrigeration fan 2 inside the air cavity, preventing them from directly contacting the items stored in the freezer compartment 11. The portion of the cover plate 114 corresponding to the refrigeration fan 2 is not shown in the figure. It is understood that the freezer compartment air inlet 112 is located on the upper part of the cover plate 114. Cold air flows into the freezer compartment 11 from the top and circulates downwards. There is a gap between the bottom of the cover plate 114 and the bottom wall of the freezer compartment 11, which facilitates the return of cold air from the bottom to the air cavity. At the same time, the variable temperature compartment air outlet 113 is located on the side wall of the freezer compartment 11 facing the variable temperature compartment 13, and the upper part of the rear wall of the freezer compartment 11 corresponding to the air cavity is provided with a refrigerator compartment air outlet 115.

[0045] A first air guide rib 116 is also provided on the inner side of the cover plate 114 above the refrigeration fan 2. The first air guide rib 116 separates the freezer compartment air inlet 112 and the refrigerator compartment air outlet 115, and is used to guide the cold air blown by the refrigeration fan 2 to the freezer compartment air inlet 112 and the refrigerator compartment air outlet 115 respectively. It can be understood that the first air guide rib 116 divides the air cavity above the refrigeration fan 2 into two independent chambers. The freezer compartment air inlet 112 and the refrigerator compartment air outlet 115 are located in the two chambers respectively. The first air guide rib 116 is located on the air outlet side of the refrigeration fan 2 to deliver air to the freezer compartment 11 and the refrigerator compartment 12, thereby improving the air delivery efficiency. In this embodiment, the freezer compartment air inlet 112 extends in the left-right direction above the cover plate 114. In order to increase the air intake of the freezer compartment 11, multiple freezer compartment air inlets 112 can be opened vertically, and a grille is provided in the middle of the freezer compartment air inlet 112.

[0046] Meanwhile, the air outlet side of the refrigeration fan 2 is also provided with a second air guide rib 117. The second air guide rib 117 is used to guide the cold air blown by the refrigeration fan 2 to the air outlet 113 of the variable temperature compartment. The refrigeration fan 2 is located in the air cavity corresponding to the middle of the freezer compartment 11 and close to the air outlet 113 of the variable temperature compartment. Thus, the refrigeration fan 2 is close to the evaporator 5, and the air supply efficiency is high. It is also close to both the refrigerator compartment 12 and the variable temperature compartment 13, and the air supply efficiency is high.

[0047] Figure 7 This is a structural schematic diagram of the first connecting member of the refrigerator according to this embodiment. Figure 8 for Figure 7 Exploded view. Figure 9 This is a structural schematic diagram of the first connector in the refrigerator according to this embodiment from another perspective. Figure 10 This is a schematic diagram of the structure of the first shell of the refrigerator installed on the variable temperature compartment according to this embodiment.

[0048] See also Figures 7 to 10The first connecting piece 3 is arranged at the back of the freezing chamber 11 and the temperature-variable chamber 13, and a through first air duct 31, a second air duct 32 and a third air duct 33 are arranged in the first connecting piece 3. The two ends of the first air duct 31 are communicated with the refrigerating chamber air outlet 121 and the air return port 111 respectively. The two ends of the second air duct 32 are communicated with the temperature-variable chamber air inlet 131 and the temperature-variable chamber air outlet 113 respectively. The two ends of the third air duct 33 are communicated with the temperature-variable chamber air outlet 132 and the air return port 111 respectively.

[0049] The second connecting piece 4 is arranged at the back of the refrigerating chamber 12 and the freezing chamber 11, and a fourth air duct 41 is arranged in the second connecting piece 4. The two ends of the fourth air duct 41 are communicated with the refrigerating chamber air inlet 122 and the refrigerating chamber air outlet 115 respectively.

[0050] Therefore, the air paths of the freezing chamber 11, the refrigerating chamber 12 and the temperature-variable chamber 13 can include the following three. First, the refrigerating fan 2 sends cold air into the freezing chamber 11 through the freezing chamber air inlet 112, and the cold air circulates in the freezing chamber 11. Second, the refrigerating fan 2 sends cold air to the refrigerating chamber 12 through the refrigerating chamber air outlet 115, the fourth air duct 41 and the refrigerating chamber air inlet 122. The cold air in the refrigerating chamber 12 returns to the freezing chamber 11 through the refrigerating chamber air outlet 121, the first air duct 31 and the air return port 111, thereby achieving circulation. Third, the refrigerating fan 2 sends cold air to the temperature-variable chamber 13 through the temperature-variable chamber air outlet 113, the second air duct 32 and the temperature-variable chamber air inlet 131. The cold air in the temperature-variable chamber 13 returns to the freezing chamber 11 through the temperature-variable chamber air outlet 132, the third air duct 33 and the air return port 111, thereby achieving circulation.

[0051] In the present application, the first connecting piece 3 is arranged, and the first air duct 31, the second air duct 32 and the third air duct 33 are arranged on the first connecting piece 3. The air supply of the temperature-variable chamber 13, the air return of the refrigerating chamber 12 and the air return of the temperature-variable chamber 13 share one connecting piece, thereby saving pipeline arrangement and installation, and effectively reducing cost.

[0052] The first air duct 31 includes a first section 311 and a second section 312 connected with the first section 311. The first section 311 is communicated with the refrigerating chamber air outlet 121, and the second section 312 is communicated with the air return port 111. The second section 312 protrudes to the front side direction relative to the first section 311. The second air duct 32 and the first section 311 are spaced apart in front and back directions. The third air duct 33 and the second section 312 are spaced apart in up and down directions. The second air duct 32 and the third air duct 33 are spaced apart in up and down directions, so that the first air duct 31, the second air duct 32 and the third air duct 33 do not interfere with each other, and can be arranged on the first connecting piece 3, thereby saving pipeline arrangement.

[0053] Meanwhile, the variable-temperature chamber air inlet 131 and the variable-temperature chamber air outlet 132 are arranged on the side wall of the variable-temperature chamber 13 facing the freezing chamber 11, and the air return port 111 is arranged on the side wall of the freezing chamber 11 facing the variable-temperature chamber 13. The variable-temperature chamber air inlet 131, the variable-temperature chamber air outlet 132, and the air return port 111 are arranged opposite to each other. In this way, the two ends of the second air duct 32 are aligned with the variable-temperature chamber air outlet 113 and the variable-temperature chamber air inlet 131 respectively, and the two ends of the third air duct 33 are aligned with the variable-temperature chamber air outlet 132 and the air return port 111 respectively. The second air duct 32 and the third air duct 33 have a short extension distance and do not need to be bent, which is convenient for molding design. Therefore, the first connecting piece 3 is partially located between the outer side wall of the freezing chamber 11 and the outer side wall of the variable-temperature chamber 13, which is convenient for clamping and fixing the first connecting piece 3, and also makes the second air duct 32 and the third air duct 33 extend along a straight line to connect the corresponding air ports.

[0054] It should be noted that the variable-temperature chamber air outlet 113 and the air return port 111 are arranged in an up-down interval, and the variable-temperature chamber air inlet 131 and the variable-temperature chamber air outlet 132 are arranged in an up-down interval. In this way, the thickness of the first connecting piece 3 in the front-rear direction can be reduced, and the second air duct 32 and the third air duct 33 can be designed by using the up-down spatial relationship. Of course, in some embodiments, the second air duct 32 and the third air duct 33 can also be arranged in an interval in the front-rear direction, and correspondingly, the variable-temperature chamber air inlet 131 and the variable-temperature chamber air outlet 132 are arranged in an interval in the front-rear direction.

[0055] Further, the refrigeration chamber air outlet 121 is arranged on the rear wall of the refrigeration chamber 12, the first segment 311 of the first air duct 31 is located outside the rear wall of the refrigeration chamber 12 and extends downward while protruding to the front side to connect with the second segment 312, so as to be spaced apart from the second air duct 32 and the third air duct 33. The second segment 312 is located between the outer side wall of the variable-temperature chamber 13 and the outer side wall of the freezing chamber 11, and is arranged above and below one end of the third air duct 33 and communicates with the air return port 111 at the same time, so as to save space and have a more compact layout. In order to make the path of the first air duct 31 shorter, the refrigeration chamber air outlet 121 is located on the side of the bottom of the rear wall of the refrigeration chamber 12 close to the freezing chamber 11.

[0056] Specifically, the first connecting member 3 comprises a first shell 34 and a second shell 35, the first shell 34 covers the second shell 35, and the first air duct 31 and the third air duct 33 are formed between the first shell 34 and the second shell 35, so as to facilitate the molding of the first air duct 31 and the third air duct 33, and the first shell 34 and the second shell 35 can be fixedly connected by clamping or screwing. It can be understood that the first shell 34 and the second shell 35 both have grooves, the shapes of the grooves of the two are matched, so as to be able to be spliced to form the first air duct 31 and the third air duct 33, and the second air duct 32 is arranged on the first shell 34 or the second shell 35 as a whole. In the embodiment, the first shell 34 is close to the front side of the cabinet 1 relative to the second shell 35, and the second air duct 32 is arranged on the first shell 34, and in some other embodiments, if the second shell 35 is close to the front side of the cabinet 1 relative to the first shell 34, the second air duct 32 is arranged on the second shell 35.

[0057] In order to make the circulation effect better, the return air inlet 111 is arranged at a position close to the bottom of the side wall of the freezing chamber 11, the return air inlet 111 and the refrigeration chamber air outlet 121 of the refrigeration chamber 12 connected by the first air duct 31 are far away in the vertical direction, and the first section 311 in the first air duct 31 mainly extends along the vertical direction, and the first connecting member 3 as a whole extends along the vertical direction.

[0058] The first shell 34 is provided with a guide column 341 in the front-rear direction, and the outer side wall of the temperature-changing chamber 13 and / or the outer side wall of the freezing chamber 11 is provided with a guide groove in the front-rear direction, the guide column 341 is inserted into the guide groove, so as to provide guidance and support between the outer side wall of the temperature-changing chamber 13 and the outer side wall of the freezing chamber 11, and the edge of the first shell 34 can be further provided with a clamping groove 342, and the outer side wall of the temperature-changing chamber 13 and / or the outer side wall of the freezing chamber 11 is provided with a buckle, the buckle is buckled in the clamping groove 342, so as to install and fix the first connecting member 3.

[0059] Figure 11 A structural schematic view of a third shell in the refrigerator according to the embodiment.

[0060] Continuing to refer to Figure 11In the example, the second connecting member 4 comprises a third shell 42 and a fourth shell 43, the third shell 42 covers the fourth shell 43, and the fourth air duct 41 is formed between the third shell 42 and the fourth shell 43, so as to facilitate the forming of the fourth air duct 41. The third shell 42 and the fourth shell 43 can be fixed by clamping or screwing. It can be understood that the third shell 42 and the fourth shell 43 are both provided with grooves, and the grooves of the third shell 42 and the fourth shell 43 are matched in shape to be able to be spliced to form the fourth air duct 41. In the embodiment, the third shell 42 is close to the front side of the cabinet 1 relative to the fourth shell 43, the third shell 42 protrudes forward to form a lapping portion 421 and a clamping portion 422, the lapping portion 421 lapping on the top wall of the freezing chamber 11 and the top wall of the refrigerating chamber 12, and the clamping portion 422 clamping between the outer side wall of the refrigerating chamber 12 and the outer side wall of the freezing chamber 11, so as to fix the second connecting member 4, the refrigerating chamber air inlet 122 is arranged on the upper portion of the rear wall of the refrigerating chamber 12, and the fourth air duct 41 is located outside the rear wall of the refrigerating chamber 12 and the rear wall of the freezing chamber 11.

[0061] In some embodiments, the refrigerating chamber air outlet 115 and the refrigerating chamber air inlet 122 can also be arranged on the side wall of the freezing chamber 11 facing the refrigerating chamber 12 and the side wall of the freezing chamber 11 facing the refrigerating chamber 12 respectively, and the fourth air duct 41 is located between the outer side wall of the refrigerating chamber 12 and the outer side wall of the freezing chamber 11 and directly aligns with the refrigerating chamber air outlet 115 and the refrigerating chamber air inlet 122.

[0062] In order to more conveniently control the air volume of the air supply to the refrigerating chamber 12 and the variable-temperature chamber 13, the first air door 123 is arranged at the refrigerating chamber air inlet 122, the first air door 123 is used to control the opening and closing of the refrigerating chamber air inlet 122, and the second air door 133 is arranged at the variable-temperature chamber air inlet 131, the second air door 133 is used to control the opening and closing of the variable-temperature chamber air inlet 131. Of course, in some embodiments, the first air door 123 can also be arranged at the refrigerating chamber air outlet 115 or in the fourth air duct 41, and the second air door 133 can also be arranged at the variable-temperature chamber air outlet 113 or in the second air duct 32.

[0063] It can be understood that the first air door 123 can include a first driving member and a first baffle, the first driving member is connected with the first baffle, the first driving member can control the size of the first baffle covering the refrigeration chamber air inlet 122, when the first baffle completely covers the refrigeration chamber air inlet 122, the refrigeration chamber air inlet 122 is closed, when the first baffle partially covers the refrigeration chamber air inlet 122, the refrigeration chamber air inlet 122 is partially opened, so that when the first baffle does not cover the refrigeration chamber air inlet 122 completely, the refrigeration chamber air inlet 122 is completely opened, and the air inlet is maximum. Wherein, the first baffle can be arranged at the inner side of the refrigeration chamber air inlet 122, the first driving member can drive the first baffle to move linearly along the radial direction of the refrigeration chamber air inlet 122, or can drive the first baffle to rotate to cover the refrigeration chamber air inlet 122, to open or close the first air door 123. The first driving member can be connected with the controller of the refrigerator, to control the opening and closing of the first air door 123 according to the program setting. The principle and structure of the second air door 133 can be the same as those of the first air door 123, and will not be described here.

[0064] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise explicitly specified and limited.

[0065] In the present application, unless otherwise explicitly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the description of the present application, the description referring to the terms "some embodiments", "exemplarily" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate way in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0067] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are merely exemplary, and are not to be understood as limiting the present application, and any changes, modifications, replacements and variations of the above embodiments made by those skilled in the art within the scope of the present application should be included in the scope of the present application.

Claims

1. A refrigerator characterized by comprising: The refrigerator comprises: a cabinet, a freezing chamber, a refrigerating chamber and a variable-temperature chamber are formed in the cabinet, a refrigerating chamber air outlet is formed on the inner wall of the refrigerating chamber, a variable-temperature chamber air inlet and a variable-temperature chamber air outlet are formed on the inner wall of the variable-temperature chamber, and a return air inlet is formed on the inner wall of the freezing chamber; the freezing chamber is communicated with the refrigerating chamber to send cold air to the refrigerating chamber; a wind cavity is arranged in the freezing chamber, and a freezing chamber air inlet and a variable-temperature chamber air outlet are formed on the wind cavity; a refrigeration fan is arranged in the wind cavity, and the refrigeration fan is used for blowing cold air to the freezing chamber air inlet and the variable-temperature chamber air outlet; a first connecting piece is arranged at the back of the freezing chamber and the variable-temperature chamber, through holes are formed in the first connecting piece, a first air duct, a second air duct and a third air duct are formed in the first connecting piece, two ends of the first air duct are communicated with the refrigerating chamber air outlet and the return air inlet respectively, two ends of the second air duct are communicated with the variable-temperature chamber air outlet and the variable-temperature chamber air inlet respectively, and two ends of the third air duct are communicated with the variable-temperature chamber air outlet and the return air inlet respectively; the refrigerating chamber and the variable-temperature chamber are spaced apart in the up-down direction, and the refrigerating chamber and the variable-temperature chamber are located on the same side of the freezing chamber; the first air duct comprises a first section and a second section connected with the first section, the first section is communicated with the refrigerating chamber air outlet, the second section is communicated with the return air inlet, the second section protrudes to the front side relative to the first section, the second air duct is spaced apart from the first section in the front-rear direction, the third air duct is spaced apart from the second section in the up-down direction, and the second air duct and the third air duct are spaced apart in the up-down direction.

2. The refrigerator according to claim 1, characterized in that, a cover plate extending in the vertical direction is arranged in the freezing chamber, the cover plate and the rear wall of the freezing chamber form the wind cavity, the freezing chamber air inlet is arranged on the upper part of the cover plate, and the variable-temperature chamber air outlet is arranged on the side wall of the freezing chamber corresponding to the wind cavity and facing the variable-temperature chamber.

3. The refrigerator according to claim 2, characterized in that, the first connecting piece is partially arranged between the outer side wall of the freezing chamber and the outer side wall of the variable-temperature chamber, the variable-temperature chamber air inlet and the variable-temperature chamber air outlet are arranged on the side wall of the variable-temperature chamber facing the freezing chamber, the return air inlet is arranged on the side wall of the freezing chamber facing the variable-temperature chamber, two ends of the second air duct are aligned with the variable-temperature chamber air outlet and the variable-temperature chamber air inlet respectively, two ends of the third air duct are aligned with the variable-temperature chamber air outlet and the return air inlet respectively, the variable-temperature chamber air outlet and the return air inlet are arranged in the up-down direction, and the variable-temperature chamber air inlet and the variable-temperature chamber air outlet are arranged in the up-down direction.

4. The refrigerator according to claim 1, characterized in that, the first connecting piece comprises a first shell and a second shell, the first shell covers the second shell, the first air duct and the third air duct are formed between the first shell and the second shell, and the second air duct is arranged on the first shell or the second shell.

5. The refrigerator according to claim 2, characterized in that, a refrigerating chamber air inlet is formed on the upper part of the refrigerating chamber rear wall corresponding to the wind cavity, and a refrigerating chamber air outlet is formed on the upper part of the refrigerating chamber rear wall; the refrigerator further comprises a second connecting piece, the second connecting piece is arranged at the back of the refrigerating chamber and the freezing chamber, a fourth air duct is formed in the second connecting piece, and two ends of the fourth air duct are communicated with the refrigerating chamber air outlet and the refrigerating chamber air inlet respectively.

6. The refrigerator according to claim 5, wherein The first air guide rib is arranged on the inner side of the cover plate above the refrigeration fan, and separates the freezing chamber air inlet and the refrigerating chamber air outlet, and is used for guiding the cold air blown by the refrigeration fan to the freezing chamber air inlet and the refrigerating chamber air outlet respectively. 7.The refrigerator of claim 5, wherein, The refrigeration fan is arranged in the air cavity corresponding to the middle part of the freezing chamber and close to the temperature changing chamber air outlet, and the air outlet side of the refrigeration fan is further provided with a second air guide rib used for guiding the cold air blown by the refrigeration fan to the temperature changing chamber air outlet. 8.The refrigerator of claim 5, wherein, The second connecting member comprises a third shell and a fourth shell, and the third shell covers the fourth shell, and the fourth air duct is formed between the third shell and the fourth shell.

9. The refrigerator according to claim 5, characterized in that, The first air door is further arranged at the refrigerating chamber air inlet, and is used for controlling the opening and closing of the refrigerating chamber air inlet. The second air door is further arranged at the temperature changing chamber air inlet, and is used for controlling the opening and closing of the temperature changing chamber air inlet.

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