Refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator which comprises a refrigerator body, a refrigerator cover, a refrigerator cover and a refrigerator cover. At least one part of the refrigeration circulation pipeline is located between the shell and the refrigerator container and used for heat exchange of the refrigeration cavity, and at least one part of the refrigeration circulation pipeline extends into the refrigeration cavity and is marked as a reserved section; the ice-making chamber shell is arranged in the refrigerating chamber; the ice making unit is arranged in the ice making chamber shell; the refrigerating pipe is used for exchanging heat for the ice-making unit, at least one part of the refrigerating pipe extends out of the interior of the ice-making chamber shell and is marked as a connecting section, and the connecting section is connected with the reserved section; and the sealing heat preservation assembly covers the connecting position of the connecting section and the reserved section and is used for preventing heat exchange between the connecting position of the connecting section and the reserved section and surrounding air. According to the refrigerator, heat preservation can be conducted on the joint of the refrigeration pipe and the refrigeration circulation pipeline, 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] For an ice maker integrated in a refrigerator, there are usually two heat exchange methods: air-cooled heat exchange and direct-cooled heat exchange. Air-cooled heat exchange is to blow cold air into the ice maker to achieve heat exchange, and direct-cooled heat exchange is to extend a refrigerant pipe through which refrigerant flows into the ice maker to achieve heat exchange.

[0003] For an ice maker with direct-cooled heat exchange, the ice maker usually comes with its own refrigerant pipe. After the ice maker is installed on the refrigerator, the refrigerant pipe of the ice maker is connected to the refrigeration cycle pipeline of the refrigerator.

[0004] However, in order to facilitate the connection of the refrigerant pipe and the refrigeration cycle pipeline, usually a part of the refrigeration cycle pipeline extends into the refrigeration cavity of the refrigerator and is connected to the refrigerant pipe extending from the ice maker. Here, the refrigerant pipe and the refrigeration cycle pipeline are exposed on the wall of the refrigeration cavity, and will first exchange heat with the air in the refrigeration cavity and then exchange heat with the ice maker, which affects the heat exchange efficiency of the ice maker and is not conducive to ice making and ice storage of the ice maker. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a refrigerator that can insulate the connection part of the refrigerant pipe and the refrigeration cycle pipeline and improve the heat exchange efficiency.

[0006] To achieve the above purpose, the utility model provides a refrigerator, including:

[0007] A box body, including an outer shell and an inner liner arranged inside the outer shell, and a refrigeration cavity is formed inside the inner liner;

[0008] A refrigeration cycle pipeline, at least a part of which is located between the outer shell and the inner liner and is used for heat exchange of the refrigeration cavity, and at least a part of the refrigeration cycle pipeline also extends into the refrigeration cavity and is denoted as a reserved section;

[0009] An ice maker outer shell, arranged inside the refrigeration cavity;

[0010] An ice making unit, arranged inside the ice maker outer shell;

[0011] A refrigerant pipe, used for heat exchange of the ice making unit, at least a part of the refrigerant pipe extends out of the ice maker outer shell and is denoted as a connection section, and the connection section is connected to the reserved section;

[0012] A sealing and heat insulation assembly, covering the connection part of the connection section and the reserved section, and used for blocking the heat exchange between the connection part of the connection section and the reserved section and the surrounding air.

[0013] In some embodiments of the present application:

[0014] The sealing and heat insulation assembly includes a sealing cover plate and a heat insulation member. The heat insulation member covers the connection portion between the connection section and the reserved section. The sealing cover plate is disposed outside the heat insulation member and is hermetically connected to the chamber wall of the refrigeration chamber.

[0015] In some embodiments of the present application:

[0016] A sealing chamber is formed on the chamber wall of the refrigeration chamber. The sealing chamber is located inside the refrigeration chamber. The reserved section is located inside the sealing chamber. At least a part of the connection section enters the sealing chamber and is connected to the reserved section. The heat insulation member is disposed in the sealing chamber. The sealing cover plate seals the sealing chamber. The sealing cover plate is also hermetically connected to the chamber wall around the sealing chamber.

[0017] In some embodiments of the present application:

[0018] A first sealing structure is provided on the chamber wall around the sealing chamber. A second sealing structure corresponding to the first sealing structure is provided on the sealing cover plate. The first sealing structure cooperates with the second sealing structure.

[0019] In some embodiments of the present application:

[0020] The first sealing structure is a wire groove which is arranged around the sealing chamber. The second sealing structure is an annular rib corresponding to the wire groove. The rib is inserted into the wire groove. At least a part of the gap between the wire groove and the rib is filled with sealing cotton.

[0021] In some embodiments of the present application, the refrigerator further includes:

[0022] An air duct cover plate which is disposed on the chamber wall and completely covers the sealing cover plate. A drain groove is further provided on the air duct cover plate.

[0023] In some embodiments of the present application:

[0024] A water receiving portion is provided on the plate surface of the air duct cover plate facing the sealing cover plate. One end of the water receiving portion extends above the drain groove and inclines downward.

[0025] In some embodiments of the present application:

[0026] A water guiding portion is provided on the plate surface of the sealing cover plate facing away from the heat insulation member. One end of the water guiding portion close to the drain groove inclines downward.

[0027] In some embodiments of the present application:

[0028] The water guiding parts are arranged in multiple numbers and arranged in sequence from top to bottom, the water receiving parts are also arranged in multiple numbers and arranged in sequence from top to bottom, and the water guiding parts and the water receiving parts are arranged alternately.

[0029] The present utility model also provides a refrigerator, comprising:

[0030] A box body, inside which a refrigerating chamber is formed;

[0031] A refrigeration cycle pipeline, arranged inside the box body and used for heat exchange of the refrigerating chamber. At least a part of the refrigeration cycle pipeline extends into the refrigerating chamber and is denoted as a reserved section;

[0032] An ice-making chamber housing, arranged inside the refrigerating chamber;

[0033] A refrigeration pipe, at least a part of which extends out from inside the ice-making chamber housing and is denoted as a connecting section, and the connecting section is connected to the reserved section;

[0034] A sealing and heat-insulating assembly, covering the connection part of the connecting section and the reserved section. The sealing and heat-insulating assembly presses the connection part of the connecting section and the reserved section against the chamber wall of the refrigerating chamber to block air from contacting the connection part of the connecting section and the reserved section.

[0035] The refrigerator according to the embodiment of the present utility model has the following beneficial effects compared with the prior art:

[0036] The refrigerator according to the embodiment of the present utility model includes a box body, a refrigeration cycle pipeline, an ice-making chamber housing, an ice-making unit, a refrigeration pipe and a sealing and heat-insulating assembly. The refrigeration pipe has a connecting section extending out from inside the ice-making chamber housing, the refrigeration cycle pipeline has a reserved section extending into the refrigerating chamber, the connecting section is connected to the reserved section, and the sealing and heat-insulating assembly covers the connection part of the connecting section and the reserved section and is used to block heat exchange between the connection part of the connecting section and the reserved section and the surrounding air. By arranging the sealing and heat-insulating assembly, the contact between the connection part of the connecting section and the reserved section and the surrounding air can be reduced, so as to reduce the cold loss here and insulate the connection part of the refrigeration pipe and the refrigeration cycle pipeline. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a partial schematic diagram of the refrigerator according to the embodiment of the present utility model.

[0039] Figure 2 Schematic diagram of the position of the sealing and heat-insulating component of the present utility model.

[0040] Figure 3 Schematic diagram of the position of the sealing and heat-insulating component and the refrigeration pipe of the present utility model.

[0041] Figure 4 Schematic diagram of the position of the heat-insulating part and the refrigeration pipe of the present utility model.

[0042] Figure 5 Schematic diagram of the position of the refrigeration pipe and the sealing cavity of the present utility model.

[0043] Figure 6 is Figure 5 Enlarged schematic diagram at position A in

[0044] Figure 7 Schematic diagram of the structure of the sealing cover plate of the present utility model.

[0045] Figure 8 Schematic diagram of the structure of the sealing cover plate of the present utility model from another angle.

[0046] Figure 9 Schematic diagram of the position of the air duct cover plate and the sealing and heat-insulating component of the present utility model.

[0047] Figure 10 Schematic diagram of the structure of the air duct cover plate of the present utility model.

[0048] Figure 11 is Figure 9 Enlarged schematic diagram at position B in

[0049] In the figure, 100, refrigeration chamber; 200, refrigeration cycle pipeline; 300, ice-making outer shell; 400, refrigeration pipe; 500, sealing and heat-insulating component; 600, air duct cover plate.

[0050] 110, sealing cavity; 120, first sealing structure; 210, reserved section; 410, connecting section; 510, sealing cover plate; 520, heat-insulating part; 511, second sealing structure; 512, water guiding part; 610, drainage groove; 620, water receiving part. Specific embodiments

[0051] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.

[0053] In the description of the present application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0054] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0055] See Figure 1 , a refrigerator according to a preferred embodiment of the present utility model includes: a box body, a refrigeration cycle pipeline 200, an ice-making chamber housing 300, an ice-making unit, a refrigeration pipe 400, and a sealing and heat-insulating member 520.

[0056] A refrigeration chamber 100 is formed inside the box body.

[0057] The box body generally includes a housing and an inner liner. The inner liner is disposed inside the housing, and an installation space is formed therebetween for installing other component structures of the refrigerator and forming a foamed heat-insulating layer. The refrigeration chamber 100 is formed inside the inner liner, that is, a refrigerating chamber, a variable-temperature chamber, or a freezing chamber.

[0058] The refrigeration cycle pipeline 200 is disposed inside the box body, at least a part of which is located between the housing and the inner liner and is used for heat exchange for the refrigeration chamber 100. At least a part of the refrigeration cycle pipeline 200 also extends into the refrigeration chamber 100 and is denoted as a reserved section 210.

[0059] To enable the refrigerator to maintain a low temperature in the refrigeration chamber 100, a refrigeration cycle system is also provided. The refrigeration cycle system generally includes components such as a compressor, a condenser, a dryer filter, a refrigeration cycle pipeline 200, and an evaporator connected by a refrigerant pipe. The operation of the refrigeration cycle system includes a compression process, a condensation process, a throttling process, and an evaporation process. Specifically, in the compression process: after the power cord of the refrigerator is plugged in and the contacts of the thermostat are closed, the compressor starts to work. The low-temperature and low-pressure refrigerant from the evaporator is sucked into the compressor and compressed into a high-temperature and high-pressure superheated gas in the compressor cylinder and then discharged into the condenser. In the condensation process: the high-temperature and high-pressure refrigerant gas dissipates heat through the condenser, and the temperature continuously drops, gradually being cooled into a normal-temperature and high-pressure saturated vapor, and further cooled into a saturated liquid, and the temperature no longer drops. The pressure of the refrigerant remains almost unchanged during the entire condensation process. In the throttling process: the condensed refrigerant saturated liquid flows into the refrigeration cycle pipeline 200 after being filtered by the dryer filter to remove moisture and impurities, and is throttled and depressurized through the refrigeration cycle pipeline 200, and the refrigerant becomes a normal-temperature and low-pressure wet vapor. In the evaporation process: the normal-temperature and low-pressure wet vapor enters the evaporator and starts to absorb heat for vaporization, reducing the temperature of the evaporator and its surroundings, enabling the refrigeration chamber 100 to be refrigerated, and turning the refrigerant into a low-temperature and low-pressure gas. The refrigerant coming out of the evaporator returns to the compressor again, repeating the above process, and energy conversion is carried out through the state change of the refrigerant, transferring the heat in the refrigerator to the air outside the box, thereby realizing the refrigeration cycle of the refrigerator. The above structural settings and operating principles of the refrigerator refrigeration cycle system are all prior arts and will not be elaborated in this application.

[0060] The ice-making chamber outer shell 300 is disposed in the refrigeration chamber 100. The ice-making chamber outer shell 300 defines an ice-making chamber.

[0061] The ice-making unit is disposed in the ice-making chamber outer shell 300, that is to say, the ice-making unit is disposed in the ice-making chamber.

[0062] At least a part of the refrigeration pipe 400 extends out from the inside of the ice-making chamber outer shell 300 and is denoted as a connection section 410, and the connection section 410 is connected to the reserved section 210.

[0063] The connection between the connection section 410 and the reserved section 210 enables the refrigeration cycle pipeline 200 and the refrigeration pipe 400 to form a mutually connected pipeline, enabling the refrigerant to move in the refrigeration pipe 400 and the refrigeration cycle pipeline 200.

[0064] Generally speaking, since the refrigeration pipe 400 can cool the ice-making chamber, the ice-making chamber housing 300 can be arranged in the refrigerating chamber or the freezing chamber.

[0065] The ice-making unit is provided with an ice tray, and a water pipe for supplying water to the ice tray at the same time. The refrigeration pipe 400 exchanges heat for the ice tray. After the water in the ice tray freezes, the driving device drives the ice tray to turn over so that the opening of the ice tray faces downward for ice-dropping operation. A storage box is usually arranged below the ice tray. The ice cubes falling off from the ice tray are stored by the storage box. The refrigeration pipe 400 exchanges heat with the air inside the ice-making chamber, and can also ensure a low-temperature state inside the storage box. Thereafter, the ice tray resets, and the water pipe adds water to the ice tray to repeat the ice-making process.

[0066] Please refer to Figures 2 - 3 , the sealing and heat-insulating component 500 covers the connection part of the connecting section 410 and the reserved section 210, and is used to block the heat exchange between the connection part of the connecting section 410 and the reserved section 210 and the surrounding air.

[0067] The sealing and heat-insulating component 500 completely covers the connection part of the connecting section 410 and the reserved section 210, so that the connection part of the connecting section 410 and the reserved section 210 reduces contact with the surrounding air. When the refrigerant passes through this connection part, it reduces heat exchange with the surrounding air, so that more cold energy can enter the interior of the ice-making chamber housing 300, thereby reducing the cold energy loss here, and further insulating the connection part of the refrigeration pipe 400 and the refrigeration cycle pipeline 200 to improve the heat exchange efficiency.

[0068] In this embodiment, after the refrigeration pipe 400 extends out of the ice-making chamber housing 300, it extends along the chamber wall of the refrigeration chamber 100. The sealing and heat-insulating component 500 presses the connection part of the connecting section 410 and the reserved section 210 against the chamber wall of the refrigeration chamber 100 to block the air from contacting the connection part of the connecting section 410 and the reserved section 210, thereby blocking the heat exchange between the connection part of the connecting section 410 and the reserved section 210 and the surrounding air.

[0069] In some embodiments, the connecting section 410 and the reserved section 210 are connected by a Rock ring. In other embodiments, other connection methods can also be adopted, such as welding.

[0070] In some embodiments, please refer to Figures 4 - 6 and Figure 9, the sealing and heat-insulating assembly 500 includes a sealing cover plate 510 and a heat-insulating member 520. The heat-insulating member 520 covers the connection part between the connecting section 410 and the reserved section 210. The sealing cover plate 510 is arranged outside the heat-insulating member 520, and the sealing cover plate 510 is hermetically connected to the chamber wall of the refrigeration chamber 100.

[0071] The heat-insulating member 520 can be made of heat-insulating materials such as a sponge pad. The heat-insulating member 520 covers the connection part between the connecting section 410 and the reserved section 210 to insulate the connection part between the connecting section 410 and the reserved section 210 and reduce the loss of cold quantity here.

[0072] The size of the sealing cover plate 510 is larger than that of the heat-insulating member 520. The sealing cover plate 510 completely covers the outside of the heat-insulating member 520. Since the sealing cover plate 510 is hermetically connected to the chamber wall of the refrigeration chamber 100, the sealing cover plate 510 can reduce the exchange between the air inside the sealing cover plate 510 and the air outside the sealing cover plate 510, so as to separate the connection part between the connecting section 410 and the reserved section 210 from the outside. When the refrigerant passes through this connection part, the heat exchange with the surrounding air is reduced, and then more cold quantity can be brought into the ice-making outer shell 300, thus reducing the loss of cold quantity here.

[0073] In some embodiments, a sealing cavity 110 is formed on the chamber wall of the refrigeration chamber 100. The sealing cavity 110 is located inside the refrigeration chamber 100. The reserved section 210 is located inside the sealing cavity 110. At least a part of the connecting section 410 enters the sealing cavity 110 and is connected to the reserved section 210. The heat-insulating member 520 is arranged in the sealing cavity 110. The sealing cover plate 510 seals the sealing cavity 110, and the sealing cover plate 510 is also hermetically connected to the chamber wall around the sealing cavity 110.

[0074] The sealing cavity 110 is a groove-shaped cavity with an opening facing the inside of the refrigeration chamber 100. In this embodiment, it is generally rectangular, and the concave direction of the sealing cavity 110 faces the outside of the refrigeration chamber 100. Such a setting can accommodate the heat-insulating member 520, the connecting section 410 and the reserved section 210 inside the sealing cavity 110. After installing the sealing cover plate 510, the space between the sealing cover plate 510 and the inner wall of the refrigeration chamber 100 is relatively flat.

[0075] The refrigeration pipe 400 extends along the chamber wall of the refrigeration chamber 100 into the sealing cavity 110. A dedicated channel can be provided in the sealing cavity 110 for the refrigeration pipe 400 to pass through.

[0076] The refrigeration cycle pipeline 200 is mainly arranged in the foam insulation layer. The reserved section 210 extends from the outer wall of the refrigeration chamber 100 into the refrigeration chamber 100, and the specific position is on the chamber wall of the sealing chamber 110. The reserved section 210 directly extends from the outer wall of the refrigeration chamber 100 into the sealing chamber 110.

[0077] The sealing cover plate 510 seals the sealing chamber 110. The sealing cover plate 510 is also hermetically connected to the chamber wall around the sealing chamber 110, which can reduce the air circulation between the air inside the sealing chamber 110 and the air outside the sealing chamber 110, thereby reducing the loss of cold quantity.

[0078] In some embodiments, a first sealing structure 120 is arranged on the chamber wall around the sealing chamber 110, and a second sealing structure 511 corresponding to the first sealing structure 120 is arranged on the sealing cover plate 510. The first sealing structure 120 cooperates with the second sealing structure 511.

[0079] The first sealing structure 120 and the second sealing structure 511 cooperate with each other to form a sealed connection between the sealing cover plate 510 and the chamber wall of the refrigeration chamber 100. The first sealing structure 120 is arranged around the sealing chamber 110, and the second sealing structure 511 also surrounds the sealing chamber 110 and matches the first sealing structure 120.

[0080] With such an arrangement, a sealing structure exists in the part where the sealing cover plate 510 contacts the chamber wall of the refrigeration chamber 100, and has a good sealing effect.

[0081] In some embodiments, please refer to Figure 6 and Figure 8 , the first sealing structure 120 is a wire groove, the wire groove is arranged around the sealing chamber 110, the second sealing structure 511 is an annular rib corresponding to the wire groove, the rib is inserted into the wire groove, and at least a part of the gap between the wire groove and the rib is filled with sealing cotton.

[0082] The wire groove is a strip-shaped groove, and the shape of the wire groove matches the shape of the rib. When the sealing cover plate 510 is connected to the chamber wall of the refrigeration chamber 100, the rib is inserted into the wire groove, and the gap between the rib and the wire groove is filled with the sealing cotton, so as to block the air circulation between the inside and the outside of the sealing chamber 110, so that the connection part between the connection section 410 and the reserved section 210 is separated from the outside, and the refrigerant reduces heat exchange with the surrounding air when passing through this connection part, and then can bring more cold quantity into the ice-making outer shell 300, thereby reducing the cold quantity loss here.

[0083] In this embodiment, the wire groove is provided as only one wire groove. In other embodiments, the wire groove may also be provided as a plurality of wire grooves, and the number, position and shape of the convex ribs match the wire grooves.

[0084] The cavity wall around the sealed cavity 110 bulges toward the interior of the refrigeration chamber 100, and the sealed cavity 110 is surrounded by the bulged portion. The sealing cover plate 510 is also covered on the bulged portion, and the bulged portion can be attached to the sealing cover plate 510. The first sealing structure 120, that is, the wire groove is arranged on the bulged portion to ensure the sealing effect.

[0085] In some embodiments, please refer to Figure 10 The refrigerator further comprises an air duct cover plate 600 , wherein the air duct cover plate 600 is arranged on the cavity wall and completely covers the sealing cover plate 510 , and a drainage groove 610 is also arranged on the air duct cover plate 600 .

[0086] Due to the temperature difference between the inside and outside of the sealing and heat-insulating assembly 500, the outer surface of the sealing cover plate 510 contacts the air outside the sealing cavity 110, and condensation will condense on the outer surface of the sealing cover plate 510. Since the air duct cover plate 600 shields the sealing and heat-insulating assembly 500, the condensation on the sealing cover plate 510 is separated from the items stored in the refrigeration chamber 100 to prevent affecting the items stored in the refrigeration chamber 100.

[0087] Similarly, condensation may also exist on the air duct cover plate 600 , and after the condensation flows down, it will be discharged from the drainage groove 610 .

[0088] In some embodiments, a water receiving portion 620 is provided on the plate surface of the air duct cover plate 600 facing the sealing cover plate 510 , and one end of the water receiving portion 620 extends to above the drainage groove 610 and tilts downward.

[0089] The water receiving portion 620 is a strip-shaped edge protruding from the plate surface of the air duct cover plate 600. When condensation on the air duct cover plate 600 flows down, the water receiving portion 620 will receive the condensation. Due to the inclined setting of the water receiving portion 620 itself, the water will flow to the lower end of the water receiving portion 620 due to its own gravity, and then slide into the drainage groove 610.

[0090] In some embodiments, please refer to Figure 7 and Figure 8 A water guide portion 512 is provided on the plate surface of the sealing cover plate 510 away from the heat-insulating component 520 , and one end of the water guide portion 512 close to the drainage groove 610 is inclined downward.

[0091] The water guiding part 512 is a strip-shaped edge protruding from the plate surface of the air duct cover plate 600. When the condensed water on the sealing cover plate 510 flows down along the sealing cover plate 510, it will be caught by the water guiding part 512. Since one end of the water guiding part 512 close to the drain groove 610 is inclined downward, the condensed water in the water guiding part 512 will also flow to the lower end of the water receiving part 620 due to its own gravity and then slide into the drain groove 610.

[0092] In some embodiments, a plurality of the water guiding parts 512 are arranged in sequence from top to bottom, and a plurality of the water receiving parts 620 are also arranged in sequence from top to bottom, and the water guiding parts 512 and the water receiving parts 620 are arranged alternately.

[0093] A plurality of the water guiding parts 512 are provided, and a plurality of the water receiving parts 620 are also provided. The number of the water guiding parts 512 matches the number of the water receiving parts 620, and there is also a gap between the two in the up-and-down direction, which can also ensure that the water receiving part 620 can utilize the water in the water guiding part 512.

[0094] By providing a plurality of the water guiding parts 512, the sealing cover plate 510 can be partitioned to prevent a large amount of condensed water from forming a water flow at the same position and directly flushing into the drain groove 610, resulting in overflow.

[0095] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A refrigerator, characterized in that: include: The box body comprises an outer shell and a box liner arranged inside the outer shell, and a refrigeration chamber is formed inside the box liner; A refrigeration cycle pipeline, at least a portion of which is located between the shell and the box liner and is used to exchange heat for the refrigeration chamber, and at least a portion of which extends into the refrigeration chamber and is recorded as a reserved section; An ice-making chamber shell is arranged in the refrigeration chamber; An ice-making unit is disposed in the ice-making chamber housing; A refrigeration pipe, used for exchanging heat for the ice-making unit, wherein at least a portion of the refrigeration pipe extends from the interior of the ice-making chamber shell and is marked as a connecting section, and the connecting section is connected to the reserved section; The sealing and heat-insulating component is covered at the connection between the connecting section and the reserved section, and is used to block the heat exchange between the connection between the connecting section and the reserved section and the surrounding air.

2. The refrigerator according to claim 1, characterized in that: The sealing and heat-insulating assembly comprises a sealing cover plate and a heat-insulating component, wherein the heat-insulating component covers the connection between the connecting section and the reserved section, the sealing cover plate is arranged outside the heat-insulating component, and the sealing cover plate is sealed and connected to the cavity wall of the refrigeration chamber.

3. The refrigerator according to claim 2, characterized in that: A sealed cavity is formed on the cavity wall of the refrigeration cavity, the sealed cavity is located in the refrigeration cavity, the reserved section is located in the sealed cavity, at least a part of the connecting section enters the sealed cavity and is connected to the reserved section, the thermal insulation component is arranged in the sealed cavity, the sealing cover plate covers the sealed cavity, and the sealing cover plate is also sealed and connected to the cavity wall around the sealed cavity.

4. The refrigerator according to claim 3, characterized in that: A first sealing structure is arranged on the cavity wall around the sealed cavity, and a second sealing structure corresponding to the first sealing structure is arranged on the sealing cover plate, and the first sealing structure cooperates with the second sealing structure.

5. The refrigerator according to claim 4, characterized in that: The first sealing structure is a wire groove, which is arranged around the sealing cavity. The second sealing structure is an annular convex rib corresponding to the wire groove, and the convex rib is inserted into the wire groove. At least a part of the gap between the wire groove and the convex rib is filled with sealing cotton.

6. The refrigerator according to claim 2, characterized in that: Also includes: The air duct cover plate is arranged on the cavity wall and completely covers the sealing cover plate. The air duct cover plate is also provided with a drainage groove.

7. The refrigerator according to claim 6, characterized in that: A water receiving portion is provided on the plate surface of the air duct cover plate facing the sealing cover plate, and one end of the water receiving portion extends to the top of the drainage groove and tilts downward.

8. The refrigerator according to claim 7, characterized in that: A water guide is provided on the plate surface of the sealing cover plate away from the heat-insulating component, and one end of the water guide close to the drainage groove is inclined downward.

9. The refrigerator according to claim 8, characterized in that: The water guide parts are provided in plurality and are arranged sequentially from top to bottom, the water receiving parts are also provided in plurality and are arranged sequentially from top to bottom, and the water guide parts and the water receiving parts are arranged alternately.

10. A refrigerator, characterized in that: include: A box body having a refrigeration chamber formed therein; A refrigeration cycle pipeline is arranged inside the box body and is used for heat exchange for the refrigeration chamber. At least a part of the refrigeration cycle pipeline extends into the refrigeration chamber and is recorded as a reserved section; An ice-making chamber shell is arranged in the refrigeration chamber; A refrigeration pipe, at least a portion of which extends from the interior of the ice-making chamber shell and is recorded as a connecting section, and the connecting section is connected to the reserved section; A sealing and heat-insulating component is covered at the connection between the connecting section and the reserved section, and the sealing and heat-insulating component presses the connection between the connecting section and the reserved section against the wall of the refrigeration chamber to prevent air from contacting the connection between the connecting section and the reserved section.

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