Drainage assembly and refrigerator

Abstract

The utility model relates to the technical field of refrigerator defrosting water drainage, in particular to a drainage assembly and a refrigerator. The drainage assembly comprises a drainage pipe, a water pan and a connecting pipe, the drainage pipe is used for being connected and sealed with a refrigerator inner container, and defrosting water in the refrigerator inner container can be drained through the drainage pipe; the water receiving disc is used for receiving externally-discharged defrosting water, a fixing pipe is arranged on the water receiving disc, and a water discharging opening is formed in the fixing pipe; the connecting pipe is connected and sealed with the drainage pipe, the connecting pipe is provided with a water storage part and an inserting part, the inserting part is contained in the fixing pipe and is in clearance fit with the pipe wall of the fixing pipe so as to form a water seal cavity, and the water seal cavity is formed in the lower position of the drainage port in the vertical direction and is communicated with the drainage port. Through the arrangement of a water sealing structure, discharging of defrosting water can be guaranteed, internal and external air pressure can be balanced, and external humid and hot air can be effectively blocked.

Description

Technical Field

[0001] This application relates to the field of refrigerator defrost water drainage technology, and in particular to a drainage component and a refrigerator. Background Technology

[0002] During the defrosting process of a refrigerator, the frost on the evaporator surface melts and produces a large amount of condensate (defrost water), which needs to be drained outside the refrigerator. When the refrigerator is cooling, the internal air pressure will be lower than the external air pressure, so a device is needed to balance the internal and external air pressure of the refrigerator.

[0003] Existing technology utilizes a drainage assembly to simultaneously address the issues of defrost water drainage and pressure balance between the inside and outside of the refrigerator. This assembly includes a drain pipe with a vent, allowing defrost water to drain and outside air to enter, thus balancing the pressure inside and outside the refrigerator. However, this method keeps the outside of the refrigerator connected to the evaporator inside, causing continuous heat exchange between warm outside air and the cold air at the evaporator location, thereby increasing energy consumption. Utility Model Content

[0004] Therefore, it is necessary to provide a drainage component and a refrigerator that can reduce refrigerator energy consumption.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] A drainage assembly, the drainage assembly comprising:

[0007] A drain pipe is used to connect and seal with the inner liner of the refrigerator, and the defrosting water inside the inner liner of the refrigerator can be discharged through the drain pipe.

[0008] A water receiving tray is used to receive the defrosting water discharged from the outside. A fixed pipe is provided on the water receiving tray, and a drain outlet is formed on the fixed pipe. The drain outlet is located above the water receiving tray in the vertical direction.

[0009] A connecting pipe is connected and sealed to the drain pipe. The connecting pipe has a water storage part and a plug part. The plug part is housed in the fixed pipe and is fitted with the pipe wall of the fixed pipe to form a water seal chamber. The water seal chamber is located below the drain outlet in the vertical direction and communicates with the drain outlet. The water storage part is located above the plug part in the vertical direction, and the water storage part is capable of containing the defrosting water drawn up from the water seal chamber.

[0010] Understandably, this application provides a connecting pipe with a water storage section and a connector. The connecting pipe forms a water-sealed chamber with the fixed pipe through the connector, thereby creating a water-sealed structure at the connection between the connector and the fixed pipe. This prevents heat exchange between external hot air and internal cold air, thus reducing refrigerator energy consumption. When the defrost water in the water-sealed chamber is stored in the water storage section, external air can enter the refrigerator liner, thereby balancing the internal air pressure with the external air pressure and solving the problem of difficulty in opening the refrigerator door caused by negative pressure inside the refrigerator.

[0011] In one embodiment, the volume of the water storage section is set to V1, and the volume of the water seal chamber is set to V2, wherein V1 > V2.

[0012] It is understandable that by setting V1 > V2, the volume of the water storage section is greater than the volume of the water seal chamber. Therefore, the water storage section can hold all the defrosting water in the water seal chamber, which can prevent the defrosting water in the water seal chamber from being drawn back into the refrigerator, thus preventing frost and ice formation on the evaporator surface and ensuring insufficient defrosting reliability of the refrigerator.

[0013] In one embodiment, V 1≥ V2.

[0014] Understandably, by setting V 1≥ V2 allows the water reservoir to fully contain all the defrost water in the water seal chamber, thereby further preventing the defrost water in the water seal chamber from being drawn back into the refrigerator.

[0015] In one embodiment, the water storage section encloses a spherical cavity, the radius of which is set to r1; the drain outlet is set to a height h along the vertical direction on the fixed pipe, and the radius of the fixed pipe is r2.

[0016] and, .

[0017] In one embodiment, the water receiving tray is further provided with a mounting protrusion, which is received inside the fixed pipe and engages with the insertion part;

[0018] The mounting protrusion forms a flow channel, which is located in the area of ​​the water seal chamber and communicates with the drain outlet.

[0019] Understandably, by setting the mounting protrusion to fit into the fixing tube, on the one hand, the fixing tube can be positioned during installation, and on the other hand, the fixing tube can be prevented from shifting due to collision after installation.

[0020] In one embodiment, the mounting protrusion can abut against and limit the insertion depth of the insertion portion in the vertical direction, thereby limiting the insertion depth of the insertion portion in the fixing tube.

[0021] In one embodiment, the mounting bump includes a first protrusion and a second protrusion connected to each other, the first protrusion and the second protrusion being arranged intersectingly, and the center line of the first protrusion and the center line of the second protrusion being arranged on the same straight line.

[0022] In one embodiment, the water storage section is positioned above the water receiving tray in the vertical direction.

[0023] It is understandable that by placing the water storage part above the water receiving tray in the vertical direction, the connecting pipe is only housed in the fixed pipe through the insertion part, and the water storage part on the connecting pipe does not contact the structure on the water receiving tray, thereby avoiding interference between the water storage part and other structures of the water receiving tray.

[0024] In one embodiment, the connecting pipe is configured as an insulated pipe.

[0025] Understandably, by configuring the connecting pipe as an insulated pipe, the loss of cold air inside the refrigerator liner due to heat conduction can be reduced, thereby reducing the refrigerator's energy consumption.

[0026] This application also provides the following technical solutions:

[0027] A refrigerator includes a refrigerator liner and a drainage assembly as described in any of the above embodiments; the drain pipe is connected and sealed to the refrigerator liner;

[0028] The refrigerator liner is configured as a refrigeration liner; or, the refrigerator liner is configured as a freezing liner.

[0029] Compared with the prior art, the drainage assembly has a connecting pipe with a water storage section and a plug section. The connecting pipe forms a water-sealed chamber with the fixed pipe through the plug section, thereby forming a water-sealed structure at the connection between the plug section and the fixed pipe. This prevents heat exchange between the external hot air and the internal cold air, thus reducing the refrigerator's energy consumption. When the defrost water in the water-sealed chamber is stored in the water storage section, external air can enter the refrigerator's inner liner, thereby balancing the internal air pressure with the external air pressure and solving the problem of difficulty in opening the refrigerator door caused by negative pressure inside the refrigerator. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the drainage component provided in this application installed in a refrigerator.

[0032] Figure 2 This is a schematic diagram of the drainage component structure provided in this application.

[0033] Figure 3 A front view of the drainage component provided in this application.

[0034] Figure 4 For this application Figure 3 Sectional view at point AA.

[0035] Figure 5 For this application Figure 4 Enlarged view of point B in the middle.

[0036] Figure 6 A schematic diagram of the water receiving tray structure provided in this application.

[0037] The component labels are as follows:

[0038] 100. Drainage assembly; 10. Drain pipe; 11. Defrosting water inlet; 12. Connecting surface; 20. Water receiving tray; 21. Fixing pipe; 211. Drain outlet; 22. Mounting protrusion; 221. First protruding plate; 222. Second protruding plate; 23. Flow channel; 30. Connecting pipe; 31. Water storage section; 311. Spherical cavity; 32. Insertion section; 33. Water seal chamber;

[0039] 200. Refrigerator; 210. Refrigerator liner; 220. Refrigerator inner liner; 230. Freezer inner liner. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0045] Please see Figures 1 to 6 This application provides a drainage component 100, which is disposed inside a refrigerator 200 for draining defrost water inside the refrigerator 200.

[0046] Specifically, the drainage assembly 100 includes: a drain pipe 10, a drip tray 20, and a connecting pipe 30. The drain pipe 10 is used to connect and seal with the refrigerator inner liner 210, and the defrost water inside the refrigerator inner liner 210 can be discharged through the drain pipe 10. The drip tray 20 is used to receive the discharged defrost water, and a fixed pipe 21 is provided on the drip tray 20. A drain outlet 211 is formed on the fixed pipe 21, and the drain outlet 211 is located above the drip tray 20 in the vertical direction. The connecting pipe 30 is connected to the drain pipe. 10. A sealing connection is provided. The connecting pipe 30 has a water storage section 31 and a plug section 32. The plug section 32 is housed within the fixed pipe 21 and fits with the wall of the fixed pipe 21 to form a water seal chamber 33. The water seal chamber 33 is located below the drain outlet 211 in the vertical direction and communicates with the drain outlet 211. The water storage section 31 is located above the plug section 32 in the vertical direction and can collect defrosting water drawn up from the water seal chamber 33. Here, by placing the drain outlet 211 above the water receiving tray 20 in the vertical direction, the highest liquid level in the water receiving tray 20 is lower than the drain outlet 211, thereby preventing water in the water receiving tray 20 from flowing back from the drain outlet 211 into the water seal chamber 33.

[0047] As can be seen from the above, this application, by setting a connecting pipe 30 with a water storage section 31 and a plug section 32, forms a water-sealed chamber 33 with the fixed pipe 21 through the plug section 32. When the air pressure inside and outside the refrigerator 200 is balanced and defrost water is discharged, the defrost water first flows into the water-sealed chamber 33, and then flows into the water collection tray 20 through the drain outlet 211. The defrost water can be stored in the water-sealed chamber 33, thereby forming a water-sealed structure at the connection between the plug section and the fixed pipe 21. The water-sealed structure can seal the plug section 32, preventing external air from entering the refrigerator 200 and preventing heat exchange between the external hot air and the internal cold air, thus reducing the energy consumption of the refrigerator 200. When the defrost water in the water-sealed chamber 33 is stored in the water storage section 31, external air can enter the refrigerator 200, thereby balancing the air pressure inside the refrigerator 200 with the external air pressure, which can solve the problem of difficulty in opening the refrigerator 200 due to negative pressure inside the refrigerator 200.

[0048] like Figure 2 As shown, the drain pipe 10 has a defrost water inlet 11, and a connecting surface 12 is provided around the defrost water inlet 11. The drain pipe 10 is connected to the refrigerator inner liner 210 through the connecting surface 12. Here, the connecting surface 12 is fitted to the connecting surface 12 of the refrigerator inner liner 210 to prevent the edge of the connecting surface 12 from lifting up and causing interference or collision with other components on the refrigerator 200.

[0049] like Figure 4 and Figure 5As shown, the drain outlet 211 on the fixed pipe 21 can be the gap formed between the edge of the fixed pipe 21 and the insertion part 32, or it can be a groove opened on the fixed pipe 21. When the drain outlet 211 is a groove opened on the fixed pipe 21, the number of drain outlets 211 can be multiple, such as 2, 3, 4, etc. The drain outlets 211 facilitate the flow of defrosting water.

[0050] In this embodiment, the drain outlet 211 is configured as a groove opened on the fixed pipe 21, and the number of drain outlets 211 is 2.

[0051] like Figure 4 , Figure 5 and Figure 6 As shown, in one embodiment, the water receiving tray 20 is further provided with a mounting protrusion 22, which is housed within the fixed pipe 21 and engages with the insertion part 32. The mounting protrusion 22 forms a flow channel 23, which is located within the area of ​​the water seal chamber 33 and communicates with the drain outlet 211. Thus, by providing the mounting protrusion 22 to engage with the fixed pipe 21, on the one hand, it can position the fixed pipe 21 during installation; on the other hand, it can prevent the fixed pipe 21 from shifting due to collision after installation.

[0052] Furthermore, the mounting protrusion 22 can abut against and limit the insertion depth of the insertion part 32 in the vertical direction, thereby limiting the insertion depth of the insertion part 32 in the fixed tube 21. By using the mounting protrusion 22 to abut and limit the insertion depth of the insertion part 32 in the vertical direction, the insertion depth of the fixed tube 21 can be restricted, allowing the flow channel 23 to communicate with the drain outlet 211, thus ensuring that defrosting water can overflow from the drain outlet 211 to the water receiving tray 20 after passing through the flow channel 23.

[0053] In this embodiment, the mounting protrusion 22 includes a first protruding plate 221 and a second protruding plate 222 connected to each other. The first protruding plate 221 and the second protruding plate 222 are arranged intersectingly, and the center line of the first protruding plate 221 and the center line of the second protruding plate 222 are on the same straight line. By setting the intersecting first protruding plate 221 and the second protruding plate as the mounting protrusion 22, the mounting position of the fixing tube 21 can be positioned. At the same time, since the first protruding plate 221 and the second protruding plate are intersecting, a flow channel 23 is naturally formed between them, eliminating the need to open the flow channel 23 on the mounting protrusion 22, making the processing of the mounting protrusion 22 more convenient.

[0054] In one embodiment, the volume of the water storage section 31 is set to V1, and the volume of the water seal chamber 33 is set to V2, wherein V1 > V2. It is understood that by setting V1 > V2, the volume of the water storage section 31 is greater than the volume of the water seal chamber 33. Therefore, the water storage section 31 can hold all the defrost water from the water seal chamber 33, preventing the defrost water in the water seal chamber 33 from being drawn back into the refrigerator 200.

[0055] It needs to be explained that the connecting pipe 30 has a cavity structure. The volume V1 of the water storage section 31 is defined as the volume of the cavity structure used to store defrost water when the water receiving tray 20 is full. The volume V2 of the water seal chamber 33 represents the volume occupied by defrost water in the cavity structure and the fixed pipe 21 at this time. Therefore, there are two cases: one is when the water receiving tray 20 is full of defrost water, the cavity structure does not contain defrost water, and the volume of defrost water in the fixed pipe 21 is V1; the other is when the water receiving tray 20 is full of defrost water, the cavity structure contains defrost water, and the volume of defrost water in the fixed pipe 21 is V. a The volume of defrosting water inside the cavity structure is V. b V2=V a +V b At this point, the condition that needs to be met is V1 > V. a +V b .

[0056] In one embodiment, V 1≥ V2. By setting V 1≥ V2 ensures that the water storage section 31 can fully contain all the defrosting water in the water seal chamber 33, and prevents the defrosting water in the water seal chamber 33 from being sucked back into the refrigerator 200.

[0057] In this embodiment, when the water tray 20 is full of defrost water, the cavity structure does not contain defrost water, and the water storage part 31 encloses a spherical cavity 311, the radius of which is set to r1; the height of the drain outlet 211 along the vertical direction on the fixed pipe 21 is set to h, and the radius of the fixed pipe 21 is r2; and, It needs to be explained that only when the lowest point of the spherical cavity 311 is higher in the vertical direction than the height of the water receiving tray 20 when it is full of defrosting water can the cavity structure be free of defrosting water, thereby preventing water from the water receiving tray 20 from flowing back into the spherical cavity 311. This ensures that the volume of the spherical cavity 311 is the same as the volume V1 of the water storage section 31, and the volume of the fixed pipe 21 is the same as the volume V2 of the water seal chamber 33.

[0058] In one embodiment, the water storage part 31 is disposed above the water receiving tray 20 in the vertical direction. By disposing of the water storage part 31 above the water receiving tray 20 in the vertical direction, the connecting pipe 30 is accommodated in the fixed pipe 21 only through the insertion part 32, and the water storage part 31 on the connecting pipe 30 does not contact the structure on the water receiving tray 20, thereby avoiding interference between the water storage part 31 and other structures of the water receiving tray 20.

[0059] In one embodiment, the connecting pipe 30 is configured as an insulated pipe. By configuring the connecting pipe 30 as an insulated pipe, the loss of cold air inside the refrigerator liner 210 due to heat conduction can be reduced, thereby reducing the energy consumption of the refrigerator 200. Here, the connecting pipe 30 can be an aerogel felt pipe, a high-density polyethylene pipe, or the like.

[0060] This application also provides the following technical solutions:

[0061] A refrigerator 200, such as Figure 1 As shown, the refrigerator 200 includes a refrigerator liner 210 and a drainage assembly 100 in any of the above embodiments; the drain pipe 10 is connected and sealed to the refrigerator liner 210; the refrigerator liner 210 is configured as a refrigerator liner 220; or, the refrigerator liner 210 is configured as a freezer liner 230.

[0062] In this embodiment, the refrigerator liner 210 is configured as a freezer liner 230.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A drainage assembly, characterized in that, The drainage assembly (100) includes: A drain pipe (10) is used to connect and seal with the refrigerator liner (210), and the defrosting water in the refrigerator liner (210) can be discharged through the drain pipe (10); A water receiving tray (20) is used to receive the defrosting water discharged from the outside. A fixed pipe (21) is provided on the water receiving tray (20), and a drain outlet (211) is formed on the fixed pipe (21). The drain outlet (211) is located above the water receiving tray (20) in the vertical direction. A connecting pipe (30) is connected and sealed to the drain pipe (10). The connecting pipe (30) has a water storage part (31) and a plug part (32). The plug part (32) is housed in the fixed pipe (21) and is fitted with the wall of the fixed pipe (21) to form a water seal chamber (33). The water seal chamber (33) is located below the drain outlet (211) in the vertical direction and communicates with the drain outlet (211). The water storage part (31) is located above the plug part (32) in the vertical direction. The water storage part (31) can contain the defrosting water drawn up from the water seal chamber (33).

2. The drainage assembly according to claim 1, characterized in that, The volume of the water storage section (31) is set to V1, and the volume of the water seal chamber (33) is set to V2, wherein V1 > V2.

3. The drainage assembly according to claim 2, characterized in that, in, V 1≥ V2.

4. The drainage assembly according to claim 2, characterized in that, The water storage section (31) encloses a spherical cavity (311), the radius of which is set to r1; the drain outlet (211) is set to h at a height along the vertical direction on the fixed pipe (21), and the radius of the fixed pipe (21) is r2. and, .

5. The drainage assembly according to claim 1, characterized in that, The water receiving tray (20) is also provided with a mounting protrusion (22), which is housed in the fixed pipe (21) and is inserted into the plug part (32); The mounting protrusion (22) has a flow channel (23), which is located in the area of ​​the water seal chamber (33) and communicates with the drain outlet (211).

6. The drainage assembly according to claim 5, characterized in that, The mounting protrusion (22) can abut against and limit the insertion part (32) in the vertical direction, thereby limiting the insertion depth of the insertion part (32) in the fixed tube (21).

7. The drainage assembly according to claim 5 or 6, characterized in that, The mounting protrusion (22) includes a first protrusion (221) and a second protrusion (222) connected to each other. The first protrusion (221) and the second protrusion (222) are arranged crosswise, and the center line of the first protrusion (221) and the center line of the second protrusion (222) are arranged on the same straight line.

8. The drainage assembly according to claim 1, characterized in that, The water storage section (31) is located above the water receiving tray (20) in the vertical direction.

9. The drainage assembly according to claim 1, characterized in that, The connecting pipe (30) is configured as an insulated pipe.

10. A refrigerator, characterized in that, Includes a refrigerator liner (210) and a drainage assembly (100) as described in any one of claims 1 to 9; the drain pipe (10) is connected and sealed to the refrigerator liner (210); The refrigerator liner (210) is configured as a refrigerated liner (220); or, the refrigerator liner (210) is configured as a frozen liner (230).

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