Refrigerator

Abstract

The utility model relates to the technical field of refrigerators, and discloses a refrigerator which comprises a machine shell provided with a cleaning area and an ice making area. The water circulation system comprises a water inlet pipe, a water purification device and a sewage pipe, and the water purification device is provided with a water purification pipe and a wastewater pipe; wherein the two ends of the water inlet pipe are communicated with a water source and the water purifying device respectively, purified water generated after filtering of the water purifying device flows to the purified water pipe, waste water is discharged to the waste water pipe, the purified water pipe is communicated with the ice making area to make ice through the purified water, and the waste water pipe is communicated with the cleaning area to clean food materials through the waste water; in addition, the two ends of the sewage pipe are communicated with the cleaning area and the external environment respectively so as to discharge sewage generated after the food materials are cleaned. Therefore, the ice making area and the cleaning area are communicated with each other through the water circulation system, and the filtered purified water and wastewater are effectively utilized. Food materials stored in the refrigerator can be directly placed in the cleaning area to be cleaned after being taken out, and convenience is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, for example, to a refrigerator. Background Art

[0002] At present, refrigerators have become a common household appliance, which is used for freezing and refrigerating food, and has brought great convenience to people's lives. With people's demand for diversified functions of refrigerators, refrigerators with ice-making functions have been welcomed by users.

[0003] The related art discloses a refrigerator, which is provided with a water inlet pipe assembly, an ice water pipe assembly and an ice taking port; the refrigerator includes a filter installed on the water inlet pipe of the water inlet pipe assembly; a water tank is arranged in the refrigerator compartment of the refrigerator, and the water tank is respectively connected with the water inlet pipe and the ice water pipe of the ice water pipe assembly; an ice maker is arranged in the refrigerator compartment or the refrigeration compartment of the refrigerator, and the ice maker has a water inlet connected with the water tank and an ice outlet connected with the ice taking port; and a controller is electrically connected with the filter and the ice maker to control the operation of the filter and the ice maker. The filter is installed on the water inlet pipe, which can purify the water flowing into the water tank to improve the safety and taste of the water; the water tank is installed in the refrigerator compartment, and the water stored in the water tank can be instantly made into ice water under the action of the cold air in the refrigerator compartment; after the water in the water tank flows into the ice maker, ice cubes are instantly made under the action of the ice maker, so that the refrigerator can make clean and safe ice water and ice cubes in real time, which is convenient for users to take.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Ice is made in an ice maker using clean water purified by a filter, but waste water purified by the filter is not effectively utilized, resulting in a poor utilization rate of water resources.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a refrigerator, which solves the problem that waste water generated when the refrigerator makes ice is not effectively utilized.

[0009] In some embodiments, the refrigerator comprises:

[0010] The casing has a cleaning area and an ice-making area;

[0011] A water circulation system includes a water inlet pipe, a water purification device and a sewage pipe, and the water purification device is provided with a water purification pipe and a wastewater pipe; wherein the two ends of the water inlet pipe are respectively connected to a water source and the water purification device, the clean water generated after filtration by the water purification device flows to the water purification pipe, and the wastewater is discharged to the wastewater pipe, and the water purification pipe is connected to an ice-making area to make ice with the clean water, and the wastewater pipe is connected to a washing area to wash food with the wastewater; and the two ends of the sewage pipe are respectively connected to the washing area and the external environment to discharge the sewage after washing the food.

[0012] Optionally, the cleaning area is provided with an ultrasonic module.

[0013] Optionally, the cleaning area is provided with a cleaning basin, and the ultrasonic module is arranged at the bottom of the cleaning basin.

[0014] Optionally, the cleaning area is provided with a plurality of cleaning basins, the wastewater pipe is provided with a plurality of water outlets, and each water outlet is connected to a cleaning basin.

[0015] Optionally, the cleaning area is further provided with a water level sensor, which is electrically connected to the ultrasonic module; and the ultrasonic module is started or shut down according to a water level signal from the water level sensor.

[0016] Optionally, the ultrasonic module is configured to start when the water level signal is greater than or equal to a preset water level, and to shut down when the water level signal is less than the preset water level.

[0017] Optionally, the housing is further provided with an external kettle area, and the external kettle area is used to place a kettle;

[0018] The clean water pipe is also connected to the external water bottle area to supply clean water to the water bottle.

[0019] Optionally, the cleaning area is located on one side of the ice making area, and the external water bottle area is located between the cleaning area and the ice making area.

[0020] Optionally, the external water bottle area includes:

[0021] Tray for supporting the kettle;

[0022] The water injection nozzle is arranged above the tray and downward toward the kettle, and the water purification pipe is connected to the water injection nozzle.

[0023] Optionally, the chassis is connected to the washing area through a water pipe.

[0024] The refrigerator provided by the embodiment of the present disclosure can achieve the following technical effects:

[0025] A water source, such as tap water, flows to a water purification device through a water inlet pipe. The water purification device filters the water source flowing through it, and generates clean water and waste water after filtration. Among them, clean water flows to the ice-making area through a water purification pipe, and then ice is made with clean water. Waste water flows to the cleaning area through a wastewater pipe, and then the wastewater is used to wash food. The water in the cleaning area is called sewage after washing food, and the sewage is discharged to the external environment through a sewage pipe. In this way, the ice-making area and the cleaning area are interconnected through a water circulation system, and the filtered clean water and waste water are effectively utilized. After the food stored in the refrigerator is taken out, it can be directly placed in the cleaning area for cleaning, which is very convenient.

[0026] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0028] Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0029] Figure 2 is a schematic diagram of the structure of a water circulation system provided by an embodiment of the present disclosure;

[0030] Figure 3 is a schematic diagram of the structure of a cleaning basin and an ultrasonic module provided in an embodiment of the present disclosure;

[0031] Figure 4 It is a schematic diagram of the structure of the tray and the water injection nozzle provided in the embodiment of the present disclosure.

[0032] Reference numerals:

[0033] 100: housing; 110: cleaning area; 111: cleaning basin; 112: ultrasonic module; 120: ice making area; 130: portable kettle area; 131: tray; 132: water filling nozzle;

[0034] 200: water purification device; 210: water inlet pipe; 220: purified water pipe; 230: waste water pipe; 240: sewage pipe. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0041] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0043] Combination Figure 1-4 As shown, the embodiment of the present disclosure provides a refrigerator, including a housing 100 and a water circulation assembly. The housing 100 is provided with a washing area 110 and an ice-making area 120; the water circulation system includes a water inlet pipe 210, a water purification device 200 and a sewage pipe 240, and the water purification device 200 is provided with a clean water pipe 220 and a waste water pipe 230; the two ends of the water inlet pipe 210 are respectively connected to the water source and the water purification device 200, the clean water generated after filtration by the water purification device 200 flows to the clean water pipe 220, and the waste water is discharged to the waste water pipe 230, and the clean water pipe 220 is connected to the ice-making area 120 to make ice with the clean water, and the waste water pipe 230 is connected to the washing area 110 to wash food with the waste water; and the two ends of the sewage pipe 240 are respectively connected to the washing area 110 and the external environment to discharge the sewage after washing the food.

[0044] In this embodiment, a water source, such as tap water, flows to the water purification device 200 through the water inlet pipe 210, and the water purification device 200 filters the water source flowing through, and generates clean water and waste water after filtering. Here, clean water refers to the water obtained after the impurities and harmful substances in the water source are removed after filtering and purification by the water purification device 200, which meets the relevant national drinking water hygiene standards and can be directly drunk or used for other life purposes. Waste water refers to the remaining water after filtering and purification by the water purification device 200. This part of water usually contains more impurities such as suspended matter and organic matter and is not suitable for direct drinking. Among them, clean water flows to the ice making area 120 through the water purification pipe 220, and then ice is made using the clean water. Waste water flows to the washing area 110 through the waste water pipe 230, and then the waste water is used to wash the food. The water in the washing area 110 is called sewage after washing the food, and the sewage is discharged to the external environment through the sewage pipe 240. In this way, the ice making area 120 and the cleaning area 110 are interconnected through the water circulation system, and the filtered clean water and waste water are effectively utilized. The food stored in the refrigerator can be directly placed in the cleaning area 110 for cleaning after being taken out, which is very convenient.

[0045] Optionally, the refrigerant circulation system of the refrigerator is mainly composed of a compressor, a condenser, a filter, a capillary tube, an evaporator, etc. The refrigeration principle of the refrigerator is mainly to achieve refrigeration by utilizing the conversion between the gas and liquid states of the refrigerant and the absorption and release of heat.

[0046] In this embodiment, when the refrigerant is sucked in and compressed by the compressor, it will become a high-temperature and high-pressure superheated vapor, and then be discharged from the exhaust pipe. After these high-temperature and high-pressure superheated vapors enter the condenser, they will dissipate heat to the surrounding air and condense into low-temperature and high-pressure gas. These low-temperature and high-pressure gases are filtered by the drying filter and enter the capillary tube. In the capillary tube, due to the slender and obstructed passage, these gases are throttled and reduced in pressure to become low-temperature and low-pressure liquids. After these low-temperature and low-pressure liquids enter the evaporator, they will absorb a large amount of external heat and vaporize into dry saturated steam, and bring the cold into the refrigerator through the air duct assembly to achieve the refrigeration effect. Finally, these refrigerants become low-pressure superheated vapor again and are sucked in by the compressor, and then the next round of refrigeration process begins.

[0047] Optionally, the ice-making area 120 is provided with an ice-making machine, the ice-making machine is provided with a water inlet and an ice outlet, and the water purification pipe 220 is connected to the water inlet of the ice-making machine.

[0048] In this embodiment, a water source, such as tap water, flows to the water purification device 200 through the water inlet pipe 210. The water purification device 200 filters the water source flowing through it, and generates clean water and waste water after filtration, wherein the clean water flows to the water inlet of the ice maker through the water purification pipe 220. The ice maker makes ice through the circulation of refrigerant and temperature control. Here, the ice maker can use the same refrigerant circulation system as the refrigerator. When the temperature is lower than the set freezing point, the control system will trigger the ice making program to freeze the water into ice cubes in the ice making box. Then, the ice cubes are discharged from the ice outlet after they are made.

[0049] Optionally, the water purification device 200 includes a multi-stage filter element. When water flows through the filter element, each stage of the filter element will intercept impurities and harmful substances in the water, thereby obtaining purified water.

[0050] Exemplarily, the water purification device 200 includes three filter elements, each of which has different filtering functions. The first filter element adopts a fiber filter element, which can remove large particle impurities, suspended matter and sediments in the water. The second filter element adopts an activated carbon filter element, which can remove organic matter, residual chlorine, odor and discoloration in the water. The third filter element adopts an ultrafiltration membrane, which can remove harmful substances such as bacteria, viruses, heavy metal ions and pesticide residues in the water.

[0051] Optionally, the cleaning area 110 is provided with an ultrasonic module 112 .

[0052] In this embodiment, the ultrasonic module 112 can generate cavitation in the liquid through high-frequency ultrasonic vibration, that is, generate alternating changes in negative pressure and positive pressure, so as to peel off impurities and harmful substances in the water of the cleaning area 110. Specifically, the vibration of the ultrasonic wave will cause tiny bubbles in the water of the cleaning area 110 to be continuously generated and burst. When these bubbles burst, they will instantly generate high temperature, high pressure and high-speed impact flow. These forces are sufficient to peel off and crush impurities such as dirt and pesticide residues attached to the surface of vegetables and fruits. At the same time, the vibration of the ultrasonic wave can also accelerate the flow and mixing of the liquid and improve the cleaning efficiency. Compared with traditional cleaning methods, ultrasonic cleaning has higher cleaning efficiency and better cleaning effect. Especially for some vegetables and fruits with rough surfaces or irregular shapes, ultrasonic cleaning can better penetrate the surface and clean the dirt hidden in the depressions.

[0053] Alternatively, if Figure 2 and Figure 3 As shown, the cleaning area 110 is provided with a cleaning basin 111 , and the ultrasonic module 112 is disposed at the bottom of the cleaning basin 111 .

[0054] In this embodiment, a water source, such as tap water, flows to the water purification device 200 through the water inlet pipe 210, and the water purification device 200 filters the water source flowing through it to generate purified water and waste water, wherein the waste water flows to the washing basin 111 through the waste water pipe 230. In this way, the food stored in the refrigerator is taken out and placed in the washing basin 111, and the user washes the food in the washing basin 111, and at the same time, the ultrasonic module 112 can be used to deeply clean the food, which is not only convenient but also has excellent cleaning effect.

[0055] Optionally, the washing basin 111 is configured in a rectangular shape, and the ultrasonic module 112 is disposed at the center of a bottom plate of the washing basin 111 .

[0056] In this embodiment, the rectangular washing basin 111 design can achieve a larger washing capacity within a limited space, which is conducive to improving space utilization efficiency. In addition, the ultrasonic module 112 is located at the center of the bottom plate, which can ensure that the sound waves are evenly transmitted to the entire washing basin 111. When the ultrasonic wave propagates in the rectangular washing basin 111, it can evenly cover the entire washing area 110, ensuring that every part of vegetables, fruits and other ingredients can be fully washed, thereby improving the washing effect.

[0057] Optionally, the cleaning area 110 is provided with a plurality of cleaning basins 111 , and the wastewater pipe 230 is provided with a plurality of water outlets, each of which is connected to a cleaning basin 111 .

[0058] In this embodiment, multiple washing basins 111 are provided to provide multiple washing spaces. When multiple ingredients are not suitable for washing in the same basin, different ingredients can be placed in different basins for washing, thereby improving the washing efficiency. A water source, such as tap water, flows to the water purification device 200 through the water inlet pipe 210. The water purification device 200 filters the water source flowing through the water source to generate clean water and waste water after filtration, wherein the waste water flows to the corresponding washing basin 111 through multiple water outlets of the waste water pipe 230.

[0059] Exemplarily, the cleaning area 110 is provided with two cleaning basins 111 , and the two cleaning basins 111 are arranged adjacent to each other.

[0060] In another exemplary embodiment, the cleaning area 110 is provided with three cleaning basins 111 , and the three cleaning basins 111 are arranged adjacent to each other in sequence.

[0061] Optionally, each water outlet of the waste water pipe 230 is provided with a flow valve.

[0062] In this embodiment, the water flow rate of the corresponding water outlet can be adjusted by the flow valve to achieve accurate control of the wastewater discharge amount of each washing basin 111. This helps to optimize the use of water resources and avoid waste. In addition, the flow valve is provided to help maintain the stable operation of the wastewater pipe 230, avoid the imbalance of water pressure in the wastewater pipe 230 due to excessive or insufficient flow of a certain water outlet, and ensure the normal operation of the water circulation system.

[0063] Optionally, the cleaning area 110 is further provided with a water level sensor, which is electrically connected to the ultrasonic module 112 and is used to transmit a water level signal to the ultrasonic module 112; and the ultrasonic module 112 is started or shut down according to the water level signal of the water level sensor.

[0064] In this embodiment, the water level in the washing basin 111 can be monitored in real time by the water level sensor. The high-precision monitoring of the water level sensor enables the ultrasonic module 112 to be accurately started or shut down according to the water level signal, thereby ensuring the stability and consistency of the washing process and realizing automatic control of the washing process. The automatically controlled ultrasonic module 112 can reduce the user's operation steps and burden. The user only needs to put the food into the washing basin 111, and then the water level sensor and ultrasonic module 112 automatically complete the washing process.

[0065] Optionally, the ultrasonic module 112 is configured to start when the water level signal is greater than or equal to a preset water level, and to shut down when the water level signal is less than the preset water level.

[0066] In this embodiment, when the water level in the clean water basin is greater than or equal to the preset water level, the ultrasonic module 112 is activated to achieve a better cleaning effect. When the water level is less than the preset water level, the ultrasonic module 112 is turned off, avoiding the ultrasonic module 112 from running idle and wasting energy due to too low a water level.

[0067] Exemplarily, a water source, such as tap water, flows to the water purification device 200 through the water inlet pipe 210, and the water purification device 200 filters the water source flowing through it, and generates clean water and waste water after filtration, wherein the waste water flows to the washing basin 111 through the waste water pipe 230. As the waste water continues to accumulate in the washing basin 111, the water level rises accordingly, and when the water level signal detected by the water level sensor is equal to the preset water level, the ultrasonic module 112 automatically starts. At this time, ultrasonic waves are used to deeply clean the food. After cleaning is completed, the water in the washing area 110 becomes sewage, and the sewage is discharged to the external environment through the sewage pipe 240. As the sewage is gradually discharged from the washing basin 111, when the water level signal detected by the water level sensor is less than the preset water level, the ultrasonic module 112 automatically turns off.

[0068] Optionally, by adjusting the value of the preset water level, the start and shut down timing of the ultrasonic module 112 can be controlled.

[0069] In this embodiment, different foods have different optimal water levels. When using the ultrasonic module 112 to clean foods, cleaning at the optimal water level has the best cleaning effect. In this way, the preset water level is adjusted to the optimal water level, so that the cleaning area 110 can adapt to a variety of cleaning scenarios and needs, thereby improving the flexibility and versatility of the cleaning area 110.

[0070] Exemplarily, the washing area 110 is provided with two washing basins 111, which are respectively referred to as the first washing basin and the second washing basin. The first washing basin is used for washing fruits and vegetables, and the second washing basin is used for washing meat. Among them, the optimal water level for fruits and vegetables is called the first water level, and the optimal water level for meat is called the second water level. The preset water level in the first washing basin is set to the first water level, and the preset water level in the second washing basin is set to the second water level. Here, the wastewater filtered by the water purification device 200 flows to the first washing basin and the second washing basin respectively through the two water outlets of the wastewater pipe 230. When the water level in the first washing basin reaches the first water level, the ultrasonic module 112 in the first washing basin is started, thereby achieving the best washing effect for fruits and vegetables; when the water level in the second washing basin reaches the second water level, the ultrasonic module 112 in the second washing basin is started, thereby achieving the best washing effect for meat.

[0071] Alternatively, if Figure 1 As shown, the housing 100 is also provided with an external water bottle area 130, and the external water bottle area 130 is used to place the water bottle; the purified water pipe 220 is also connected to the external water bottle area 130 to supply purified water to the water bottle.

[0072] In this embodiment, by providing an externally portable kettle area 130, the refrigerator has the function of supplying portable purified water to the user. Here, the externally portable kettle area 130, the ice making area 120 and the cleaning area 110 are interconnected through a water circulation system. A water source, such as tap water, flows to the water purification device 200 through the water inlet pipe 210, and the water purification device 200 filters the water source flowing through it to generate purified water and waste water after filtration. The purified water flows to the externally portable kettle area 130 through the water purification pipe 220, and then the purified water can be supplied to the kettle. The user can easily take out the kettle filled with purified water, thereby meeting the user's demand for purified water.

[0073] Optionally, the cleaning area 110 is located at one side of the ice-making area 120 , and the external water bottle area 130 is located between the cleaning area 110 and the ice-making area 120 .

[0074] In this embodiment, the cleaning area 110 is arranged on one side of the ice making area 120, which helps to optimize the spatial layout inside the refrigerator housing 100 and improve the compactness and efficiency of the refrigerator. At the same time, the external water bottle area 130 is placed between the cleaning area 110 and the ice making area 120, which can more conveniently connect the clean water pipe 220, the waste water pipe 230 and other related pipes, and optimize the pipe layout of the water circulation system. And through a reasonable spatial layout, the appearance of the refrigerator can be made more beautiful and neat, which helps to improve the user's experience and overall evaluation of the refrigerator.

[0075] Alternatively, if Figure 4 As shown, the external water bottle area 130 includes a tray 131 and a water injection nozzle 132. The tray 131 is used to support the water bottle; the water injection nozzle 132 is arranged above the tray 131 and downward toward the water bottle, and the water purification pipe 220 is connected to the water injection nozzle 132.

[0076] In this embodiment, a water source, such as tap water, flows to the water purification device 200 through the water inlet pipe 210. The water purification device 200 filters the water source flowing through it to generate clean water and waste water. The clean water flows to the water injection nozzle 132 through the clean water pipe 220. When the user needs to take water, the user places the kettle on the tray 131, and then uses the water injection nozzle 132 to inject clean water into the kettle. When the water injection is completed, the user can take the kettle out of the tray 131.

[0077] Optionally, the chassis is connected to the washing area 110 via a water pipe.

[0078] In this embodiment, when the user receives water from the portable kettle area 130, the splashed or overflowed water flows onto the bottom plate. The quality of this part of water does not meet the requirements for ice making, so this part of water is guided to the washing area 110 through the water pipe for washing food. In this way, water can be effectively reused and water resources can be saved.

[0079] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigerator, characterized in that: include: The housing (100) is provided with a cleaning area (110) and an ice making area (120); A water circulation system comprises a water inlet pipe (210), a water purification device (200) and a sewage pipe (240), wherein the water purification device (200) is provided with a water purification pipe (220) and a waste water pipe (230); wherein the two ends of the water inlet pipe (210) are respectively connected to a water source and the water purification device (200); the purified water generated after filtration by the water purification device (200) flows to the water purification pipe (220), and the waste water is discharged to the waste water pipe (230); the water purification pipe (220) is connected to an ice making area (120) to make ice using purified water, and the waste water pipe (230) is connected to a washing area (110) to wash food using waste water; and the two ends of the sewage pipe (240) are respectively connected to the washing area (110) and the external environment to discharge waste water after washing food.

2. The refrigerator according to claim 1, characterized in that: The cleaning area (110) is provided with an ultrasonic module (112).

3. The refrigerator according to claim 2, characterized in that: The cleaning area (110) is provided with a cleaning basin (111), and the ultrasonic module (112) is arranged at the bottom of the cleaning basin (111).

4. The refrigerator according to claim 3, characterized in that: The cleaning area (110) is provided with a plurality of cleaning basins (111), and the waste water pipe (230) is provided with a plurality of water outlets, each of which is connected to a cleaning basin (111).

5. The refrigerator according to claim 2, characterized in that: The cleaning area (110) is also provided with a water level sensor, which is electrically connected to the ultrasonic module (112); and the ultrasonic module (112) is activated or deactivated according to a water level signal from the water level sensor.

6. The refrigerator according to claim 5, characterized in that: The ultrasonic module (112) is configured to start when the water level signal is greater than or equal to a preset water level, and to shut down when the water level signal is less than the preset water level.

7. The refrigerator according to any one of claims 1 to 6, characterized in that: The housing (100) is also provided with an external kettle area (130), and the external kettle area (130) is used to place a kettle; The clean water pipe (220) is also connected to the external water bottle area (130) to supply clean water to the water bottle.

8. The refrigerator according to claim 7, characterized in that: The cleaning area (110) is located on one side of the ice-making area (120), and the external water bottle area (130) is located between the cleaning area (110) and the ice-making area (120).

9. The refrigerator according to claim 7, characterized in that: The external water bottle area (130) includes: A tray (131) for supporting the kettle; The water injection nozzle (132) is arranged above the tray (131) and faces downward toward the kettle, and the water purification pipe (220) is connected to the water injection nozzle (132).

10. The refrigerator according to claim 9, characterized in that: The bottom plate is connected to the washing area (110) through a water pipe.

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