Refrigerator

Abstract

The application relates to a refrigerator, which comprises a cabinet, an ice making device, a pipeline assembly and a water feeding pipe, a foaming layer is formed on the inner wall of the cabinet; the ice making device is arranged in the cabinet; the pipeline assembly is embedded in the foaming layer and forms an integrated structure with the foaming layer, one end of the pipeline assembly serves as a water outlet end, and the water outlet end is communicated with the ice making device; the water feeding pipe is movably arranged in the pipeline assembly and extends into the water outlet end of the pipeline assembly so as to convey the water in the water feeding pipe to the ice making device through the water outlet end of the pipeline assembly. The pipeline assembly embedded in the foaming layer is used to form a pipeline channel, and the water feeding pipe is movably arranged in the pipeline channel formed by the pipeline assembly; the pipeline assembly embedded in the foaming layer can simplify the sealing requirement and installation difficulty in the pipeline channel, and the movable arrangement of the water feeding pipe can facilitate plug-in maintenance, thereby improving the ice making performance of the refrigerator.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to a refrigerator. Background Technology

[0002] As society continues to develop, people have increasingly higher requirements for refrigerators, and the demand for refrigerators with ice-making functions is growing. Ice-making functions typically involve placing the ice maker in a specific area such as the refrigerator or freezer compartment, and the water used for ice making needs to be introduced into the ice maker through a water supply line.

[0003] In existing technologies, water supply pipelines are installed into the tank after the tank is foamed. However, since the water supply pipelines are installed after the tank is foamed, there are many heating and sealing structures, which are more complex and require higher installation precision. This can easily lead to problems such as ice formation or ice blockage in the water supply pipelines. Summary of the Invention

[0004] The purpose of this invention is to provide a refrigerator that optimizes the water supply pipeline of the ice-making device in the prior art, thereby improving the ice-making performance of the refrigerator.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] According to one aspect of the present invention, a refrigerator is provided, comprising: a cabinet having a foamed layer formed on its inner wall; an ice-making device disposed within the cabinet; and a piping assembly embedded in the foamed layer and forming an integral structure with the foamed layer, one end of the piping assembly serving as a water outlet connected to the ice-making device; and a water supply pipe movably passing through the piping assembly and extending into the water outlet of the piping assembly, so as to transport water in the water supply pipe through the water outlet of the piping assembly to the ice-making device.

[0007] According to some embodiments of this application, the refrigerator further includes a heating layer covering the outer wall of the piping assembly, the heating layer being embedded within the foaming layer along with the piping assembly.

[0008] According to some embodiments of this application, the pipeline assembly includes a water outlet, a connecting pipe, and a sleeve connected in sequence; the water outlet serves as the water outlet end of the pipeline assembly, and the end of the water outlet away from the connecting pipe is connected to the ice-making device; the sleeve is flexibly embedded in the foaming layer; the water delivery pipe passes through the sleeve and the connecting pipe in sequence and extends into the water outlet.

[0009] According to some embodiments of this application, the water outlet head includes an integrally formed water outlet pipe section and a water inlet pipe section, which are connected at an angle; the water outlet pipe section is located at the top of the ice-making device, and the bottom end of the water outlet pipe section communicates with the interior of the ice-making device; the water inlet pipe section extends obliquely upward from the top end of the water outlet pipe section; and the water supply pipe extends into and is arranged inside the water inlet pipe section.

[0010] According to some embodiments of this application, a notch is recessed at the bottom end of the water outlet pipe.

[0011] According to some embodiments of this application, a limiting rib is provided at one end of the water inlet pipe near the water outlet pipe, and the end of the water delivery pipe extending into the water inlet pipe can abut against the limiting rib.

[0012] According to some embodiments of this application, the pipeline assembly further includes a rubber plug disposed at the connection between the water outlet and the connecting pipe; the rubber plug is capable of sealing the port of the water outlet connected to the connecting pipe, and the rubber plug has a through hole for the water delivery pipe to extend into, and the rubber plug and the water delivery pipe are interference-fitted at the through hole.

[0013] According to some embodiments of this application, a circumferentially extending assembly ring is protruding from the outer wall of the end of the water outlet connected to the connecting pipe; a plurality of circumferentially spaced locking protrusions are formed on the assembly ring; the end of the connecting pipe connected to the water outlet is provided with a buckle corresponding to the locking protrusion; and the end of the connecting pipe is sleeved on the corresponding end of the water outlet, and the buckle is able to engage with the locking protrusion; the rubber plug is sleeved on the end of the water outlet and sandwiched between the outer wall of the water outlet and the inner wall of the connecting pipe.

[0014] According to some embodiments of this application, the assembly ring is recessed with an anti-foolproof slot spaced apart from the protruding part; the end of the connecting tube is provided with an anti-foolproof block that engages with the anti-foolproof slot; when the buckle engages with the protruding part, the anti-foolproof block is engaged within the anti-foolproof slot.

[0015] According to some embodiments of this application, a positioning block is protruding on the outer wall of the end of the sleeve that connects to the connecting pipe; a positioning groove adapted to the positioning block is provided at the end of the connecting pipe that connects to the sleeve; the end of the connecting pipe is sleeved on the sleeve, and the positioning block is fitted into the positioning groove.

[0016] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects:

[0017] In the refrigerator of this invention, a pipe assembly pre-embedded within the foam layer forms a pipe channel, through which a water supply pipe is movably inserted. The pipe assembly pre-embedded within the foam layer forms an integral structure with the refrigerator body, simplifying the sealing requirements and installation difficulty within the pipe channel. The movable design of the water supply pipe facilitates plugging and unplugging for maintenance, thereby improving the refrigerator's ice-making performance, reducing production and maintenance costs, and enhancing the user experience. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of a refrigerator according to an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A magnified schematic diagram of a portion of the structure.

[0020] Figure 3 yes Figure 1 A sectional view along the AA direction.

[0021] Figure 4 yes Figure 1 A schematic diagram of the central pipeline assembly.

[0022] Figure 5 yes Figure 4 A magnified structural diagram of region B in the middle.

[0023] Figure 6 yes Figure 4 A partial sectional view.

[0024] Figure 7 yes Figure 4 A partial decomposition diagram.

[0025] Figure 8 yes Figure 7 A schematic diagram of the structure of the water outlet head.

[0026] Figure 9 yes Figure 8 A sectional view.

[0027] Figure 10 yes Figure 4 Another partial decomposition diagram.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Cabinet; 11. Refrigeration compartment; 2. Ice maker; 3. Piping assembly; 31. Water outlet; 32. Connecting pipe; 33. Pipe sleeve; 34. Rubber stopper; 35. Fixing base; 311. Water outlet section; 312. Water inlet section; 313. Fixing plate; 314. Assembly ring; 321. Buckle; 322. Anti-foolproof block; 323. Positioning groove; 331. Positioning block; 341. Perforation; 3110. Notch groove; 3121. Limiting rib; 3141. Protrusion; 3142. Anti-foolproof bayonet; 3201. Extension section; 3202. Connecting section; 31411. Guide surface; 4. Water supply pipe. Detailed Implementation

[0030] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] 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 one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] As society continues to develop, people have increasingly higher requirements for refrigerators, and the demand for refrigerators with ice-making functions is growing. Ice-making functions typically involve placing the ice maker in a specific area such as the refrigerator or freezer compartment, and the water used for ice making needs to be introduced into the ice maker through a water supply line.

[0035] In existing technologies, water supply pipelines are installed into the tank after the tank is foamed. However, since the water supply pipelines are installed after the tank is foamed, there are many heating and sealing structures, which are more complex and require higher installation precision. This can easily lead to problems such as ice formation or ice blockage in the water supply pipelines.

[0036] Figure 1 This is a cross-sectional view of a refrigerator according to an embodiment of the present invention. Figure 2 yes Figure 1 A magnified schematic diagram of a portion of the structure. Figure 3 yes Figure 1 A sectional view along the AA direction.

[0037] Please see Figure 1 and Figure 3 As shown, the refrigerator provided in this embodiment of the invention includes a cabinet 1, an ice-making device 2 disposed in the cabinet 1, and a pipeline assembly 3 and a water supply pipe 4 for supplying water to the ice-making device 2.

[0038] The cabinet 1 can be a cuboid structure. Multiple separate refrigeration compartments 11 can be set up inside the cabinet 1, such as freezers, refrigerators, and variable temperature compartments, to meet different refrigeration needs such as freezing, refrigeration, and variable temperature operation depending on the type of food. The multiple refrigeration compartments 11 can be arranged vertically or horizontally.

[0039] The housing 1 is a foamed housing 1, and a foamed layer is formed on its inner wall. The foamed layer can be formed by filling the inner wall of each refrigeration compartment 11 with foamed material.

[0040] An ice-making device 2 is located inside the refrigerator body 1 and is used to provide ice-making function for the refrigerator. The ice-making device 2 can be installed at the top of the refrigerator compartment or freezer compartment to facilitate water supply to the ice-making device 2 from top to bottom of the refrigerator compartment or freezer compartment.

[0041] Pipe assembly 3 is embedded within the foam layer and forms an integral structure with it. One end of pipe assembly 3 serves as the water outlet, which is connected to the ice-making device 2. The other end of pipe assembly 3 serves as the water inlet, extending out of the foam layer and connecting to the water valve and water tank. Pipe assembly 3 forms a water supply channel within the foam layer for the water delivery pipe 4 to extend into.

[0042] Figure 4 yes Figure 1 A schematic diagram of the structure of the central pipeline assembly 3. Figure 5 yes Figure 4 A magnified structural diagram of region B in the middle. Figure 6 yes Figure 4 A partial sectional view. Figure 7 yes Figure 4 A partial decomposition diagram.

[0043] Please see Figures 4 to 7 As shown, the water supply pipe 4 is movably installed within the water supply pipeline formed by the pipe assembly 3 and extends into the outlet end of the pipe assembly 3 to transport water from the water supply pipe 4 to the ice-making device 2 through the outlet end of the pipe assembly 3. It should be noted that because the water supply pipe 4 is movably installed within the pipe assembly 3, it can be pulled out of the pipe assembly 3 for easy insertion and removal for maintenance. The water supply pipe 4 can be made of PE pipe, which has excellent durability and a long service life.

[0044] Specifically, one end of the pipe assembly 3 can be positioned using the mounting bracket of the ice-making device 2, allowing the pipe assembly 3 to be pre-installed inside the housing 1. Then, foaming material is used to fill and foam the assembly, forming a foam box. The pipe assembly 3 is then embedded within the foam layer, and the pipe assembly 3 and the foaming material are integrally cured and molded, completing the pre-assembly of the housing 1. The water supply pipe 4 can be inserted into the pipe assembly 3 for use. Alternatively, the water supply pipe 4 can be pulled out of the pipe assembly 3 for inspection and maintenance as needed.

[0045] In some embodiments, a heating layer covers the outer wall of the piping assembly 3. Heating by the heating layer prevents icing inside the piping assembly 3. The heating layer is embedded within the foam layer along with the piping assembly 3, which simplifies the internal sealing structure of the piping assembly 3 and eliminates the need to consider the installation of the heating structure during assembly.

[0046] It should be noted that the heating layer can adopt common heating structures, such as heating wires wrapped around the outer wall of the pipe assembly 3.

[0047] Please see Figure 4 In some embodiments, the piping assembly 3 includes a water outlet 31, a connecting pipe 32, and a pipe sleeve 33 connected in sequence. The water supply pipe 4 passes through the pipe sleeve 33 and the connecting pipe 32 in sequence and extends into the water outlet 31. The heating layer can be disposed on the outer wall of the pipe sleeve 33, or on the outer wall of the water outlet 31 and the connecting pipe 32.

[0048] The water outlet 31 serves as the water outlet end of the piping assembly 3, with its end furthest from the connecting pipe 32 connected to the ice-making device 2. The water outlet 31 can be made of aluminum to improve the heating effect when the heating layer is heated on the outer wall of the water outlet 31.

[0049] Figure 8 yes Figure 7 A schematic diagram of the structure of the water outlet head 31. Figure 9 yes Figure 8 A sectional view.

[0050] Please see Figure 8 and Figure 9 As shown, in some embodiments, the water outlet 31 includes an integrally formed water outlet pipe 311 and a water inlet pipe 312, which are connected at an angle.

[0051] Please see Figure 8 and combined Figure 3 As shown, the water outlet pipe 311 is located at the top of the ice-making device 2, and the bottom end of the water outlet pipe 311 is connected to the interior of the ice-making device 2.

[0052] The bottom end of the water outlet pipe 311 is recessed with a notch 3110. The notch 3110 is a trapezoidal groove that is narrower at the top and wider at the bottom. This notch 3110 prevents water film from accumulating at the bottom end of the water outlet pipe 311 due to negative pressure, which could then freeze in a low-temperature environment, blocking the bottom outlet of the water outlet pipe 311 and preventing water from being injected for ice making. The notch 3110 can also be an arc-shaped structure. It is understood that multiple notches 3110 can be provided and arranged at intervals along the circumference of the water outlet pipe 311.

[0053] Please see Figure 6 The inner diameter of the bottom port of the water outlet pipe 311 gradually increases from top to bottom, making its water outlet gradually wider, thereby reducing the resistance when water flows into the ice-making device 2.

[0054] The bottom end of the water outlet pipe 311 has a rounded corner structure between it and the notch groove 3110 to prevent water film from accumulating and freezing.

[0055] Please see Figure 6 and combined Figure 3 As shown, a fixing plate 313 extends outward in the circumferential direction on the peripheral wall of the water outlet pipe 311. The fixing plate 313 is used to attach and fix it to the top of the ice making device 2.

[0056] The inlet pipe section 312 extends obliquely upward from the top of the outlet pipe section 311. At this time, the angle between the inlet pipe section 312 and the outlet pipe section 311 is greater than 90°. When the water supply pipe 4 is inserted into the inlet pipe section 312, the water in the water supply pipe 4 flows into the inlet pipe section 312 and automatically flows into the outlet pipe section 311, thus supplying water to the ice-making device 2. It should be noted that the angle between the inlet pipe section 312 and the outlet pipe section 311 only needs to be slightly greater than 90°.

[0057] Please see Figure 9 and combined Figure 6As shown, a limiting rib 3121 is provided at one end of the inlet pipe section 312 near the outlet pipe section 311. The end of the water supply pipe 4 extending into the inlet pipe section 312 can abut against the limiting rib 3121, so as to prevent the end of the water supply pipe 4 from penetrating into the lower temperature outlet pipe section 311 when the water supply pipe 4 is inserted or removed, thus preventing the water supply pipe 4 from freezing. In some embodiments, the limiting rib 3121 is provided on the top side wall of the inlet pipe section 312 to prevent residual water from accumulating on the side of the limiting rib 3121 and gradually accumulating and freezing.

[0058] The connecting pipe 32 is used to connect the water outlet head 31 and the pipe sleeve 33. One end of the connecting pipe 32 is connected to the end of the water inlet pipe 312 that is away from the water outlet pipe 311, and the other end of the connecting pipe 32 is connected to the pipe sleeve 33.

[0059] Please see Figure 7 and Figure 8 In some embodiments, a circumferentially extending mounting ring 314 protrudes from the outer wall of the end of the inlet pipe 312 near the connecting pipe 32. The mounting ring 314 has a plurality of circumferentially spaced latching protrusions 3141. Correspondingly, a latch 321 corresponding to the latching protrusions 3141 is provided at the end of the connecting pipe 32, and this end of the connecting pipe 32 is sleeved on the corresponding end of the outlet pipe 311, allowing the latch 321 to engage with the latching protrusions 3141. That is, when it is necessary to connect the connecting pipe 32 to the outlet head 31, the connecting pipe 32 can be sleeved on the end of the inlet pipe 312, and the latch 321 and latching protrusions 3141 can be used to securely connect the connecting pipe 32 to the outlet head 31.

[0060] Please see Figure 8 A guide surface 31411 is formed on the side wall edge of the latching protrusion 3141 facing the connecting pipe 32. This guide surface 31411 is inclined radially outward in a direction gradually moving away from the latching protrusion 3141. Therefore, when the latch 321 engages with the latching protrusion 3141, the latch 321 can smoothly engage with the latching protrusion 3141 along the guide surface 31411. It can be understood that the guide surface 31411 can be an inclined slope or a smoothly transitioned curved surface.

[0061] Please see Figure 7 and Figure 6The assembly ring 314 has a recessed anti-foolproof slot 3142 that is circumferentially spaced from the locking protrusion 3141. The end of the connecting pipe 32 has an anti-foolproof block 322 that engages with the anti-foolproof slot 3142; when the buckle 321 engages with the locking protrusion 3141, the anti-foolproof block 322 can be engaged within the anti-foolproof slot 3142. When it is necessary to connect the connecting pipe 32 to the water outlet head 31, the anti-foolproof block 322 on the connecting pipe 32 can be aligned with the anti-foolproof slot 3142 on the assembly ring 314 first, and then the end of the connecting pipe 32 can be sleeved on the end of the water inlet pipe 312, so that the buckle 321 of the connecting pipe 32 can be smoothly engaged with the locking protrusion 3141 of the water inlet pipe 312. If the anti-foolproof block 322 on the connecting pipe 32 is not aligned with the anti-foolproof latch 3142 on the assembly ring 314, the buckle 321 of the connecting pipe 32 cannot be successfully fastened to the latch protrusion 3141 of the water inlet pipe 312.

[0062] Please see Figure 6 and Figure 7 In some embodiments, the connecting pipe 32 includes an extension section 3201 and a connecting section 3202 that are joined at an angle. The extension section 3201 is used to connect to the end of the water inlet pipe section 312, and the extension direction of the extension section 3201 is consistent with the direction of the water inlet pipe section 312, so that the water supply pipe 4 can be inserted into or withdrawn from the water inlet pipe section 312 along the extension section 3201. The connecting section 3202 is used to connect to the end of the pipe sleeve 33. The connecting section 3202 can extend in a straight line or extend in an arc shape to connect to the end of the pipe sleeve 33. A smooth transition can also be used between the extension section 3201 and the connecting section 3202.

[0063] Please refer to Figure 6 and Figure 7 In some embodiments, the piping assembly 3 further includes a rubber plug 34 disposed at the connection between the outlet head 31 and the connecting pipe 32. The rubber plug 34 is fitted onto the end of the outlet head 31. When the connecting pipe 32 is fitted onto the end of the outlet head 31, the structure that allows the rubber plug 34 to be fitted onto the outer wall of the outlet head 31 is sandwiched between the outer wall of the outlet head 31 and the inner wall of the connecting pipe 32. The rubber plug 34 can seal the port where the inlet pipe section 312 connects to the connecting pipe 32, and can simplify the sealing requirements of the piping assembly 3.

[0064] Please see Figure 9 and combined Figure 6The rubber stopper 34 has a through hole 341 for the water supply pipe 4 to extend into. The water supply pipe 4 is inserted into the water inlet pipe section 312 through the through hole 341, and the rubber stopper 34 and the water supply pipe 4 are press-fitted at the through hole 341. On the one hand, the water supply pipe 4 can be fixed by the rubber stopper 34, stabilizing the water supply pipe 4 in the water inlet pipe section 312; on the other hand, it can prevent water in the water inlet pipe section 312 from flowing into the connecting pipe 32 through the gap between the rubber stopper 34 and the water supply pipe 4, that is, it can prevent water backflow, and thus it is not necessary to consider the sealing problem between the connecting pipe 32 and the sleeve 33, or between the connecting pipe 32 and the sleeve 33.

[0065] Figure 10 yes Figure 4 Another partial decomposition diagram.

[0066] Please see Figure 10 and combined Figure 1 and Figure 4 As shown, the sleeve 33 can be bent and embedded in the foam layer, which reduces the installation space requirements inside the refrigerator. Therefore, the pipe assembly 3 can be adapted to refrigerators of different models and sizes.

[0067] Please see Figure 10 and combined Figure 6 In some embodiments, a positioning block 331 extending axially is provided on the outer wall of the end of the sleeve 33 that connects to the connecting pipe 32; the end of the connecting pipe 32 that connects to the sleeve 33 is provided with a positioning groove 323 adapted to the positioning block 331. When the end of the connecting pipe 32 is sleeved on the sleeve 33, the positioning block 331 can be inserted into the positioning groove 323. By utilizing the anti-fooling blocks 322 and positioning grooves 323 at both ends of the connecting pipe 32, the connecting pipe 32 can be connected to the outlet head 31 and the sleeve 33 in a specific direction and angle, facilitating the rapid installation and positioning of the pipeline assembly 3.

[0068] Please see Figure 4 A fixing seat 35 is provided at the other end of the sleeve 33 away from the connecting pipe 32. The fixing seat 35 is fixed inside the housing 1 and exposed outside the foam layer. The water supply pipe 4 can pass through the opening on the fixing seat 35 and extend into the sleeve 33.

[0069] Based on the above technical solution, the embodiments of the present invention have at least the following advantages and positive effects:

[0070] In the refrigerator of this embodiment, a pipe assembly 3 pre-embedded in the foam layer can be used to form a pipe channel, and a water supply pipe 4 can be movably inserted into the pipe channel formed by the pipe assembly 3. The pipe assembly 3 pre-embedded in the foam layer forms an integral structure with the cabinet 1, which simplifies the sealing requirements and installation difficulty within the pipe channel. The movable design of the water supply pipe 4 facilitates plugging and unplugging for maintenance.

[0071] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigerator characterized by comprising: The refrigerator comprises: a cabinet, an inner wall of which is provided with a foaming layer; an ice making device arranged in the cabinet; a pipeline assembly embedded in the foaming layer and integrated with the foaming layer, one end of the pipeline assembly serving as a water outlet end, the water outlet end being in communication with the ice making device; a water delivery pipe movably arranged in the pipeline assembly and extending into the water outlet end of the pipeline assembly to deliver water in the water delivery pipe to the ice making device through the water outlet end of the pipeline assembly; the pipeline assembly comprises a water outlet head, a connecting pipe and a pipe sleeve connected in sequence, the water outlet head comprising an integrally formed water outlet pipe portion and a water inlet pipe portion; a limiting rib is arranged on an end of the water inlet pipe portion close to the water outlet pipe portion, and an end of the water delivery pipe extending into the water inlet pipe portion can abut against the limiting rib; the limiting rib is arranged on a top side wall in the water inlet pipe portion. The refrigerator further comprises a heating layer wrapped on an outer wall of the pipeline assembly, the heating layer being embedded in the foaming layer together with the pipeline assembly.

3. The refrigerator of claim 1, wherein 2. The refrigerator according to claim 1, wherein the water outlet head serves as the water outlet end of the pipeline assembly, and an end of the water outlet head away from the connecting pipe is in communication with the ice making device; the pipe sleeve is embedded in the foaming layer in a bendable manner; the water delivery pipe movably passes through the pipe sleeve and the connecting pipe in sequence and extends into the water outlet head; the water outlet pipe portion and the water inlet pipe portion are connected at an angle; the water outlet pipe portion is arranged at a top of the ice making device, and a bottom end of the water outlet pipe portion is in communication with an inside of the ice making device; the water inlet pipe portion is bent and extended upwardly from a top end of the water outlet pipe portion; 4. The refrigerator according to claim 3, wherein the water delivery pipe extends into the water inlet pipe portion; a notch groove is concavely arranged on a port of the bottom end of the water outlet pipe portion; the pipeline assembly further comprises a rubber plug arranged at a connecting position of the water outlet head and the connecting pipe; 5. The refrigerator according to claim 4, wherein the rubber plug can seal a port of the water outlet head connected with the connecting pipe, a through hole is formed in the rubber plug for the water delivery pipe to extend into, and the rubber plug is in interference fit with the water delivery pipe at the through hole; 6. The refrigerator according to claim 3, wherein an assembly ring extending in a circumferential direction is convexly arranged on an outer wall of an end of the water outlet head connected with the connecting pipe; a plurality of clamping protrusions arranged in a circumferential direction are formed on the assembly ring; a clamping buckle corresponding to the clamping protrusions is arranged on an end of the connecting pipe connected with the water outlet head; the end of the connecting pipe is sleeved on the corresponding end of the water outlet head, and the clamping buckle can be clamped with the clamping protrusions; 7. The refrigerator according to claim 6, wherein the rubber plug is sleeved on the end of the water outlet head and clamped between the outer wall of the water outlet head and the inner wall of the connecting pipe. a foolproof clamping hole is concavely arranged on the assembly ring at a position spaced apart from the clamping protrusions; a foolproof block is arranged on the end of the connecting pipe and embedded in the foolproof clamping hole when the clamping buckle is clamped with the clamping protrusions; a positioning block is convexly arranged on an outer wall of an end of the pipe sleeve connected with the connecting pipe; a positioning groove corresponding to the positioning block is arranged on an end of the connecting pipe connected with the pipe sleeve; 8. The refrigerator according to claim 7, wherein the end of the connecting pipe is sleeved on the pipe sleeve, and the positioning block is embedded in the positioning groove. ​ 9. The refrigerator according to claim 7, wherein ​ ​

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