Water purification system and refrigeration appliance

Abstract

The application provides a water purification system and a refrigeration equipment, and the water purification system comprises a water tank, a purification flow path, and a purification component, wherein the water tank is provided with a water inlet and a water outlet, and the water inlet and the water outlet are located on the same side of the water tank; the purification flow path comprises a first interface, a second interface and a third interface, the first interface is in communication with the water outlet, the second interface is in communication with the water inlet, and the third interface is used for connecting a water using equipment, and the first interface can be selectively in communication with the second interface or the third interface; the purification component is arranged in the purification flow path, and is used for circulating and purifying the liquid in the water tank when the first interface and the second interface are in communication, so that the liquid flowing out of the water tank through the water outlet is circulated and purified through the second interface and then flows back into the water tank. According to the water purification system, the liquid in the water tank can be used by the water using equipment through the purification flow path, and can also be circulated and purified through the purification flow path.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to a water purification system and a refrigeration device. Background Technology

[0002] In related technologies, the purified liquid in a water purification system is stored in a water tank. When a user needs water, the water in the tank is delivered to the water-using device. However, if the user does not use the water for a long time, bacteria will grow in the water stored in the tank due to prolonged stagnation, thus affecting the water quality. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, a first aspect of the present invention provides a water purification system.

[0005] A second aspect of the present invention also provides a refrigeration device.

[0006] In view of the above, a first aspect of the present invention provides a water purification system for use in refrigeration equipment. The water purification system includes: a water tank having an inlet and an outlet located on the same side of the water tank; a purification flow path including a first interface, a second interface, and a third interface, wherein the first interface is connected to the outlet, the second interface is connected to the inlet, and the third interface is used to connect a water-using device, and the first interface can be selectively connected to either the second or the third interface; and a purification component disposed in the purification flow path, used to, when the first interface and the second interface are connected, allow the liquid flowing out of the water tank from the outlet to be purified and then flow back to the water tank through the second interface, thereby circulating and purifying the liquid in the water tank.

[0007] The water purification system provided by this invention is used in refrigeration equipment. The system includes a water tank, a purification flow path, and a purification component. The water tank has an inlet and an outlet. The purification flow path includes a first interface, a second interface, and a third interface. The first interface is connected to the outlet, the second interface is connected to the inlet, and the third interface is used to connect to the water-using equipment. The purification component is located within the purification flow path. The first interface can selectively connect to either the second or third interface. When the first and third interfaces are connected, the liquid in the water tank can flow from the first interface to the third interface, and then from the third interface to the water-using equipment for user use. When the first and second interfaces are connected, the liquid in the water tank can flow out of the outlet, then through the first interface to the second interface, and be purified by the purification component during this flow. The purified liquid then flows back into the water tank from the inlet, achieving circulating purification of the liquid in the tank, maintaining the cleanliness of the liquid, improving the water quality, and preventing bacterial growth caused by prolonged stagnation of the liquid in the tank. In other words, in the embodiments proposed in this application, the liquid in the water tank can be used by the water equipment through the purification flow path, and can also be circulated and purified through the purification flow path, which improves the convenience of use. Furthermore, the liquid in the water tank is circulated and purified through the purification flow path, so there is no need to set up another water box to hold the purified liquid, which reduces the number of parts and also reduces the space occupied by the water purification system in the internal space of the refrigeration equipment.

[0008] The inlet and outlet are located on the same side of the water tank, which shortens the length of the ineffective pipeline outside and inside the water tank for the purification flow path. It also concentrates the interfaces of the purification flow path on the same side of the water tank, making the layout of the purification flow path more compact.

[0009] In some embodiments, optionally, the water purification system further includes: a valve body having an inlet, a first outlet, and at least two second outlets; a purification flow path including a first pipeline, a circulation pipeline, and at least two second pipelines, the first pipeline having a first interface, the circulation pipeline having a second interface, and the second pipelines having a third interface, the at least two second pipelines being used to connect different water-using devices; wherein, the inlet is connected to the first pipeline, the first outlet is connected to the circulation pipeline, the at least two second outlets are respectively connected to at least two second pipelines, and the valve body is used to switch the connection direction of the first pipeline so that the first pipeline is connected to the circulation pipeline or connected to at least one second pipeline.

[0010] In this embodiment, the water purification system also includes a valve body with an inlet, a first outlet, and at least two second outlets. The purification flow path includes a first pipe, a circulation pipe, and at least two second pipes. The first pipe has a first interface, the circulation pipe has a second interface, and the second pipes have a third interface. The at least two second pipes are used to connect different water-using devices. The inlet is connected to the first pipe, the first outlet is connected to the circulation pipe, and the at least two second outlets are each connected to at least two second pipes. Thus, when the valve body switches to connect the first pipe and the circulation pipe, the liquid in the water tank flows through the first pipe and the valve body, enters the circulation pipe, is purified by the purification components, and returns to the water tank, achieving circulation purification. When the valve body switches to connect the first pipe and any of the second pipes, the liquid flows through the corresponding second pipe to the specific water-using device, providing purified water to the user. The embodiment proposed in this application achieves centralized circulation purification and multi-channel water supply through a multi-port valve body, simplifying the pipe layout, improving system integration and space utilization, and flexibly adapting to multiple different water-using terminals within the refrigeration equipment.

[0011] In some embodiments, the purification component may optionally include: a first purification component disposed in a first pipeline for purifying liquid flowing through the first pipeline; and / or a second purification component disposed in a circulation pipeline for purifying liquid flowing through the circulation pipeline.

[0012] In this embodiment, the purification component includes a first purification component, which is disposed in the first pipeline and used to purify the liquid flowing through the first pipeline. Thus, when the valve body switches to connect the first pipeline to a second pipeline for external water supply, the liquid flowing through the first pipeline is purified by the first purification component before flowing into the second pipeline and then to the water-using equipment, ensuring the cleanliness of the liquid flowing to the water-using equipment. When the valve body switches to connect the first pipeline to a circulation pipeline for internal circulation, the liquid flowing through the first pipeline is purified by the first purification component before entering the circulation pipeline and then flowing back to the water tank. In other words, the first purification component can simultaneously purify the liquid in the water tank when supplying water to the water-using equipment, and purify it when circulating back to the water tank through the circulation pipeline, improving the utilization rate of the first purification component and the degree of purification of the liquid delivered to the water-using equipment. Optionally, when the purification component includes a second purification component, the second purification component is located in the circulation pipeline. Thus, when the first pipeline and the circulation pipeline are connected, the liquid enters the circulation pipeline from the first pipeline, is purified in the circulation pipeline, and then flows back to the water tank, ensuring the purification effect of the liquid. Optionally, when the purification component includes both a first and a second purification component, when the first pipeline and the circulation pipeline are connected, the liquid in the water tank flows into the first pipeline from the outlet, undergoes one purification by the first purification component, and then flows to the circulation pipeline, undergoes another purification by the second purification component. That is, when circulating and purifying the liquid in the water tank, the liquid in the water tank undergoes at least two purifications in one circulation, improving the circulation and purification effect of the liquid in the water tank. Furthermore, when the first pipeline and the second pipeline are connected, the purified water in the water tank can also undergo a second purification when passing through the first pipeline, further improving the cleanliness of the liquid flowing to the water-using equipment.

[0013] In some embodiments, the first purification element may optionally include a filter or a UV sterilization component; and / or the second purification element may include a filter or a UV sterilization component.

[0014] In this embodiment, the first purification element includes a filter or a UV (ultraviolet) sterilization component, and / or the second purification element includes a filter or a UV sterilization component. When the first purification element is a filter, it can effectively filter out particulate impurities in the water supply path; when the first purification element is a UV sterilization component, it can disinfect the liquid in the water supply path with ultraviolet light. Similarly, if the second purification element installed on the circulation pipeline is a filter, it can remove suspended solids during the liquid circulation process in the water tank; if it is a UV sterilization component, it can continuously kill bacteria in the circulating liquid.

[0015] In some embodiments, the water purification system may optionally include a support frame, a water tank and a second purification component both mounted on the support frame, and the water tank and the support frame being detachably connected.

[0016] In this embodiment, the water purification system also includes a bracket, on which the water tank and the second purification component are both mounted. The bracket provides a common mounting base for the water tank and the second purification component. In addition, the detachable connection of the water tank allows it to be easily removed from or installed on the bracket, thereby facilitating users to clean the water tank, add water, or use large quantities of purified water from the tank.

[0017] In some embodiments, the outer bottom wall of the water tank is optionally provided with a groove, the groove being recessed into the water tank, and the second purification element is disposed below the water tank and at least partially located within the groove.

[0018] In this embodiment, the outer bottom wall of the water tank has a groove that is recessed into the water tank. The second purification component is located below the water tank and at least partially within the groove. This allows part of the structure of the second purification component to be embedded in the groove space at the bottom of the water tank, reducing the vertical height occupied by the second purification component alone below the water tank. This achieves a compact vertical layout of the water tank and the second purification component, helping to reduce the overall height or volume of the water purification system, and thus reducing the space utilization rate of the purification system within the refrigeration equipment. Simultaneously, placing the second purification component below and close to the water tank also helps to shorten the length of the circulation pipeline, improve circulation purification efficiency, and simplify pipeline layout.

[0019] In some embodiments, optionally, the second purification component includes: a mounting base connected to a bracket, the mounting base having an inlet and an outlet, and the mounting base being rotatable relative to the bracket between a first position and a second position; a filter bottle detachably connected to the mounting base, wherein when the filter bottle is connected to the mounting base, the inlet communicates with a first outlet and the filter bottle, and the outlet communicates with the filter bottle and a second interface; when the mounting base is in the first position, the filter bottle is received between a groove and the bracket; when the mounting base is in the second position, the filter bottle is inclined upward relative to the bracket along the height direction of the water tank to create a gap between the filter bottle and the bracket.

[0020] In this embodiment, the second purification component includes a mounting base and a filter bottle. The mounting base is connected to a bracket and can rotate relative to the bracket between a first position and a second position. The filter bottle is detachably connected to the mounting base. When the filter bottle is connected to the mounting base and the first pipeline is connected to the circulation pipeline, the liquid in the water tank can flow from the first pipeline to the circulation pipeline and from the inlet to the filter bottle for filtration. The filtered liquid flows from the outlet to the second port and then back to the water tank. Furthermore, when the mounting base is in the first position, the filter bottle is housed between the groove and the bracket. At this time, the filter bottle and the mounting base are in an installed state, which helps maintain a low overall height and integration of the water purification system. When the mounting base is in the second position, the filter bottle is tilted upward relative to the bracket along the height direction of the water tank, creating a gap between the filter bottle and the bracket. This provides operating space for the user, facilitating the disassembly and replacement of the filter bottle and improving the convenience of filter bottle maintenance.

[0021] In some embodiments, the water purification system may optionally further include: a one-way valve disposed in the circulation pipeline, the one-way valve being used to open the circulation pipeline in the direction from the first outlet to the second interface.

[0022] In this embodiment, the water purification system also includes a one-way valve located in the circulation pipeline. The one-way valve is used to open the circulation pipeline from the first outlet to the second interface. Thus, when the valve body switches to connect the first pipeline with the circulation pipeline, the liquid flowing out of the water tank can pass through the one-way valve and, after purification, flow back to the water tank via the second interface. The one-way valve prevents the liquid from flowing back from the second interface to the first outlet, ensuring unidirectional flow of the liquid in the circulation purification process. This prevents liquid backflow that may be caused by changes in internal pressure of the water purification system or external interference, ensuring the stability and reliability of the circulation purification process. It avoids problems such as incomplete purification, reduced purification efficiency, or abnormal pressure in the pipeline that may be caused by backflow, thereby ensuring the effectiveness of liquid circulation purification in the water tank and the stability of the system operation.

[0023] In some embodiments, the water purification system may optionally include a third purification component disposed within the water tank for purifying the liquid within the water tank.

[0024] In this embodiment, the water purification system further includes a third purification component, which is located inside the water tank and is used to purify the liquid stored in the water tank, thereby improving the purification effect of the liquid in the water tank.

[0025] In some embodiments, the water purification system may optionally further include: an inlet pipe, which is disposed in a water tank, with a first end connected to an inlet and a second end located in and connected to the water tank; and an outlet pipe, which is disposed in a water tank, with a first end connected to an outlet and a second end located in and connected to the water tank; wherein the second end of the outlet pipe is located below the second end of the inlet pipe.

[0026] In this embodiment, the water purification system also includes an inlet pipe and an outlet pipe, both located within the water tank. The first end of the inlet pipe is connected to the inlet, and the second end is connected to the water tank. The first end of the outlet pipe is connected to the outlet, and the second end is connected to the water tank. This allows liquid in the water tank to enter the outlet pipe from the second end and flow out of the water tank from the first end. When the first pipeline is connected to the circulation pipeline, the purified liquid enters the water tank from the second end of the inlet pipe. The second end of the outlet pipe is positioned below the second end of the inlet pipe, reducing resistance during water intake and ensuring reliable water output even when the water level in the tank is low. Furthermore, the lower position of the outlet pipe ensures overall circulation of the liquid within the water tank, reducing stagnant areas and promoting uniform water quality. Additionally, the higher inlet position also mitigates disturbance to any sediment that may be present at the bottom of the water tank from the incoming water flow.

[0027] In some embodiments, the water purification system may optionally include: a pump body disposed in the first pipeline, for pumping liquid in the water tank from the outlet to the first pipeline, and causing the liquid to flow to the second pipeline or the circulation pipeline.

[0028] In this embodiment, the water purification system also includes a pump body located in the first pipeline. The pump body is used to pump the liquid in the water tank from the outlet to the first pipeline. When the first pipeline is connected to the second pipeline, the liquid flows to the second pipeline. When the first pipeline is connected to the circulation pipeline, the liquid flows to the circulation pipeline. That is, the same pump body is used for the water supply to the water-using equipment and the purification and circulation operation of the water tank, which improves the utilization rate of the pump body, reduces the manufacturing cost, and reduces the space occupied by the water purification system in the internal space of the refrigeration equipment.

[0029] In some embodiments, the water purification system may optionally include: a control device connected to the valve body and the pump body, for controlling the operation of the valve body according to preset conditions, so as to switch the connection direction of the first pipeline and control the pump body to open or close.

[0030] In this embodiment, the water purification system also includes a control device connected to the valve body and the pump body. The control device controls the operation of the pump body and, according to preset conditions, controls the operation of the valve body to switch the connection direction of the first pipeline. Specifically, the control device receives external commands or, when the operating parameters meet preset conditions, sends a control signal to the valve body to switch the first pipeline, connecting it to the circulation pipeline or the second pipeline.

[0031] In some embodiments, the water purification system may optionally include: a detection element connected to the pump body and the control device, used to detect the operating parameters of the pump body; wherein the preset conditions include the pump body's shutdown duration, the control device determines the pump body's shutdown duration according to the operating parameters, and when the shutdown duration is greater than or equal to the preset duration, controls the pump body to open and controls the valve body to switch the connection direction of the first pipeline so that the first pipeline is connected to the circulation pipeline.

[0032] In this embodiment, the water purification system also includes a detection device connected to the pump body and the control device. The detection device is used to detect the operating parameters of the pump body. The control device determines the shutdown duration of the pump body based on the operating parameters. If the shutdown duration is greater than or equal to the preset duration, it indicates that the water tank has been in a static state for a long time. At this time, the pump body is controlled to open, and the valve body is controlled to switch the connection direction of the first pipeline so that the first pipeline is connected to the circulation pipeline, thereby circulating and purifying the liquid in the water tank and improving the water quality of the liquid in the water tank.

[0033] According to a second aspect of the invention, a refrigeration device is also provided, comprising: a water-using device; and a water purification system as described in any of the above embodiments, wherein the water-using device is connected to a third interface.

[0034] The refrigeration equipment provided in the second aspect of the present invention, since it includes the water purification system proposed in any of the above embodiments, has all the beneficial effects of the water purification system.

[0035] In some embodiments, the water-using equipment may optionally include a water outlet and / or an ice-making assembly.

[0036] In this embodiment, the water-using equipment includes a water outlet and / or an ice-making component. The water outlet provides drinking water to the user, and the ice-making component prepares ice. A third interface of the water purification system can be connected to the water outlet and / or the ice-making component via a corresponding second pipe. When the valve switches to connect the first pipe to the second pipe connected to the water outlet, the purified liquid flows to the water outlet for the user to use; when connected to the second pipe connected to the ice-making component, it provides purified water to the ice-making component for ice production.

[0037] In some embodiments, the refrigeration equipment may optionally include: a housing, the housing including a refrigerator compartment and a freezer compartment, wherein at least a portion of a water tank and a purification flow path is disposed in the refrigerator compartment.

[0038] In this embodiment, the refrigeration equipment also includes a cabinet, which includes a refrigerator compartment and a freezer compartment. At least a portion of the water tank and the purification flow path are located in the refrigerator compartment. The low-temperature environment provided by the refrigerator compartment is beneficial for providing users with low-temperature water directly. It can also inhibit the growth of microorganisms in the water tank and at least a portion of the purification flow path, while avoiding the risk of ice formation inside the pipes or components that may occur in the freezer compartment. This ensures the smooth flow and reliability of the water purification system. In addition, placing the water tank and part of the pipes in the refrigerator compartment also makes it convenient for users to perform operations such as adding water and cleaning.

[0039] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 One of the structural schematic diagrams of a water purification system according to an embodiment of the present invention is shown;

[0042] Figure 2 A second schematic diagram of the structure of a water purification system according to an embodiment of the present invention is shown;

[0043] Figure 3 The third schematic diagram shows the structure of a water purification system according to an embodiment of the present invention;

[0044] Figure 4 The fourth schematic diagram shows the structure of a water purification system according to an embodiment of the present invention;

[0045] Figure 5 The fifth schematic diagram shows the structure of a water purification system according to an embodiment of the present invention;

[0046] Figure 6 A schematic diagram of the structure of a water purification system according to an embodiment of the present invention is shown in Figure 6.

[0047] Figure 7 The seventh schematic diagram shows the structure of a water purification system according to an embodiment of the present invention;

[0048] Figure 8 One of the structural schematic diagrams of a water purification system according to another embodiment of the present invention is shown;

[0049] Figure 9 A second schematic diagram of the structure of a water purification system according to another embodiment of the present invention is shown;

[0050] Figure 10 One of the structural schematic diagrams of a water purification system according to another embodiment of the present invention is shown;

[0051] Figure 11 A second schematic diagram of the structure of a water purification system according to another embodiment of the present invention is shown;

[0052] Figure 12 One of the structural schematic diagrams of a water purification system according to yet another embodiment of the present invention is shown;

[0053] Figure 13 A second schematic diagram of the structure of a water purification system according to yet another embodiment of the present invention is shown;

[0054] Figure 14 One of the schematic block diagrams of a water purification system according to an embodiment of the present invention is shown;

[0055] Figure 15 A second schematic block diagram of a water purification system according to an embodiment of the present invention is shown;

[0056] Figure 16 A third schematic block diagram of a water purification system according to an embodiment of the present invention is shown;

[0057] Figure 17 The fourth schematic block diagram shows a water purification system according to an embodiment of the present invention;

[0058] Figure 18 The fifth schematic block diagram shows a water purification system according to an embodiment of the present invention;

[0059] Figure 19 One of the structural schematic diagrams of a refrigeration device according to an embodiment of the present invention is shown;

[0060] Figure 20 A second schematic diagram of the structure of a refrigeration device according to an embodiment of the present invention is shown;

[0061] Figure 21 A third schematic diagram of the structure of a refrigeration device according to an embodiment of the present invention is shown;

[0062] Figure 22 The fourth schematic diagram shows the structure of a refrigeration device according to an embodiment of the present invention.

[0063] The components include: 1. Water tank; 10. Inlet; 12. Outlet; 14. Groove; 16. Filling port; 2. Purification flow path; 20. First interface; 21. Second interface; 22. Third interface; 23. First pipeline; 24. Circulation pipeline; 25. Second pipeline; 26. Check valve; 27. Inlet pipe; 28. Outlet pipe; 29. ​​Inlet pipeline; 290. Inlet valve; 3. Purification component; 30. First purification component; 32. Second purification component; 320. Mounting base; 3200. Liquid inlet; 3202. Liquid outlet; 322. Filter bottle; 4. Valve body; 40. Inlet; 42. First outlet; 44. Second outlet; 5. Bracket; 6. Pump body; 7. Control device; 8. Detection component; 9. Refrigeration equipment; 90. Water equipment; 900. Water outlet device; 902. Ice-making component; 92. Cabinet; 920. Refrigeration room; 922. Freezer room; 94. External water source. Detailed Implementation

[0064] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0065] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0066] The following reference Figures 1 to 22 A water purification system and refrigeration equipment are described according to some embodiments of the present invention.

[0067] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 19 As shown, according to an embodiment of the present invention, a water purification system is proposed for use in a refrigeration device 9. The water purification system includes: a water tank 1, which has an inlet 10 and an outlet 12, located on the same side of the water tank 1; a purification flow path 2, which includes a first interface 20, a second interface 21, and a third interface 22, wherein the first interface 20 is connected to the outlet 12, the second interface 21 is connected to the inlet 10, and the third interface 22 is used to connect to a water-using device 90, and the first interface 20 can be selectively connected to either the second interface 21 or the third interface 22; and a purification component 3, disposed in the purification flow path 2, which, when the first interface 20 and the second interface 21 are connected, allows the liquid flowing out of the water tank 1 from the outlet 12 to be purified and then flow back to the water tank 1 through the second interface 21, thereby circulating and purifying the liquid in the water tank 1.

[0068] The water purification system provided by the present invention is used in a refrigeration device 9. The water purification system includes a water tank 1, a purification flow path 2, and a purification component 3. The water tank 1 is provided with an inlet 10 and an outlet 12. The purification flow path 2 includes a first interface 20, a second interface 21, and a third interface 22. The first interface 20 is connected to the outlet 12, the second interface 21 is connected to the inlet 10, and the third interface 22 is used to connect to the water-using device 90. The purification component 3 is located in the purification flow path 2. The first interface 20 can be selectively connected to either the second interface 21 or the third interface 22. When the first interface 20 is connected to the third interface 22, the liquid in the water tank 1 can flow from the first interface 20 to the third interface 22, and then from the third interface 22 to the water-using device 90 for user use. When the first interface 20 is connected to the second interface 21, the liquid in the water tank 1 can flow out of the water tank 1 through the outlet 12, then flow from the first interface 20 to the second interface 21, and be purified by the purification component 3 during the flow to the second interface 21. Thus, the purified liquid flows back into the water tank 1 through the inlet 10, realizing the circulation and purification of the liquid in the water tank 1, maintaining the cleanliness of the liquid in the water tank 1, improving the water quality of the liquid in the water tank 1, and avoiding bacterial growth caused by prolonged stagnation of the liquid in the water tank 1. That is, in the embodiments proposed in this application, the liquid in the water tank 1 can be used by the water equipment 90 through the purification flow path 2, and can also be circulated and purified through the purification flow path 2, which improves the convenience of use. In addition, the liquid in the water tank 1 is circulated and purified through the purification flow path 2, so there is no need to set up another water box to hold the purified liquid, which reduces the number of parts and also reduces the space occupied by the water purification system on the internal space of the refrigeration equipment 9.

[0069] The inlet 10 and outlet 12 are located on the same side of the water tank 1, which shortens the length of the ineffective pipeline of the purification flow path 2 outside and inside the water tank 1, and also concentrates the interfaces of the purification flow path 2 on the same side of the water tank 1, thus making the layout of the purification flow path 2 more compact.

[0070] It is understood that the embodiments proposed in this application achieve the circulation and purification of the liquid in the water tank 1 by switching the communication direction of the first interface 20. This means that even if the liquid in the water tank 1 is left to stand for a long time or the water quality does not meet the requirements, it can continuously flow out of the water tank 1 for a target duration and flow back into the water tank 1 after purification, thereby achieving the purification of the liquid in the water tank 1. In other words, the embodiments proposed in this application purify the liquid in the water tank 1. For example, when the first interface 20 is connected to the second interface 21, the operating time of the pump body 6 is controlled by the control device 7 so that all or most of the liquid in the water tank 1 is purified at least once.

[0071] Optionally, the purification effect can be adjusted by controlling the circulation and purification time of the liquid in the water tank 1 through the purification flow path 2.

[0072] Optionally, the purification component 3 may include a filter bottle 322 or an ultraviolet sterilization device.

[0073] Optionally, the switching between the first interface 20, the second interface 21 and the third interface 22 can be achieved by the valve body 4 or by a detachable connection method. For example, the first interface 20 and the second interface 21 can be detachably connected, and the first interface 20 can also be detachably connected to the third interface 22.

[0074] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, optionally, the water purification system further includes: a valve body 4, which has an inlet 40, a first outlet 42, and at least two second outlets 44; the purification flow path 2 includes a first pipe 23, a circulation pipe 24, and at least two second pipes 25, the first pipe 23 having a first interface 20, the circulation pipe 24 having a second interface 21, and the second pipes 25 having a third interface 22, and the at least two second pipes 25 being used to connect different water-using devices 90; wherein, the inlet 40 is connected to the first pipe 23, the first outlet 42 is connected to the circulation pipe 24, the at least two second outlets 44 are respectively connected to at least two second pipes 25, and the valve body 4 is used to switch the connection direction of the first pipe 23 so that the first pipe 23 is connected to the circulation pipe 24 or to at least one second pipe 25.

[0075] In this embodiment, the water purification system also includes a valve body 4, which has an inlet 40, a first outlet 42 and at least two second outlets 44. The purification flow path 2 includes a first pipe 23, a circulation pipe 24 and at least two second pipes 25. The first pipe 23 has a first interface 20, the circulation pipe 24 has a second interface 21, and the second pipes 25 have a third interface 22. The at least two second pipes 25 are used to connect different water-using devices 90. In this system, inlet 40 is connected to the first pipe 23, first outlet 42 is connected to the circulation pipe 24, and at least two second outlets 44 are connected to at least two second pipes 25 respectively. Thus, when valve body 4 switches to connect the first pipe 23 with the circulation pipe 24, the liquid in water tank 1 flows through the first pipe 23 and valve body 4 into the circulation pipe 24, is purified by purification component 3, and then returns to water tank 1, achieving circulation purification. When valve body 4 switches to connect the first pipe 23 with any of the second pipes 25, the liquid flows through the corresponding second pipe 25 to a specific water-using device 90, providing purified water to the user. The embodiment proposed in this application achieves centralized circulation purification and multi-channel water supply through a multi-port valve body 4, simplifying pipe layout, improving system integration and space utilization, and flexibly adapting to multiple different water-using terminals within the refrigeration equipment 9.

[0076] Optionally, the valve body 4 can be a multi-position multi-way solenoid valve or a manual plug valve; alternatively, different flow rates or purification levels can be set for different second pipelines 25 to meet the specific needs of each water-using device 90.

[0077] In some embodiments, the purification component 3 may optionally include: a first purification component 30 disposed in the first pipeline 23 for purifying the liquid flowing through the first pipeline 23; and / or a second purification component 32 disposed in the circulation pipeline 24 for purifying the liquid flowing through the circulation pipeline 24.

[0078] In this embodiment, such as Figure 2 , Figure 3 , Figure 4 , Figure 9 , Figure 11 and Figure 13 As shown, the purification component 3 includes a first purification component 30, which is disposed in the first pipeline 23 and used to purify the liquid flowing through the first pipeline 23. Thus, when the valve body 4 switches to connect the first pipeline 23 to a second pipeline 25 for external water supply, the liquid flowing through the first pipeline 23 is purified by the first purification component 30 before flowing into the second pipeline 25 and then to the water-using device 90, ensuring the cleanliness of the liquid flowing to the water-using device 90. When the valve body 4 switches to connect the first pipeline 23 to the circulation pipeline 24 for internal circulation, the liquid flowing through the first pipeline 23 is purified by the first purification component 30 before entering the circulation pipeline 24 and then flowing back to the water tank 1. That is, the first purification component 30 can simultaneously purify the liquid in the water tank 1 when supplying water to the water-using device 90, and purify it when circulating back to the water tank 1 through the circulation pipeline 24, improving the utilization rate of the first purification component 30 and the purification level of the liquid delivered to the water-using device 90. Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 10 and Figure 11As shown, optionally, when the purification component 3 includes a second purification component 32, the second purification component 32 is disposed in the circulation pipe 24. Thus, when the first pipe 23 is connected to the circulation pipe 24, the liquid enters the circulation pipe 24 from the first pipe 23, is purified in the circulation pipe 24, and then flows back to the water tank 1, ensuring the purification effect of the liquid. Optionally, when the purification component 3 includes a first purification component 30 and a second purification component 32, when the first pipe 23 is connected to the circulation pipe 24, the liquid in the water tank 1 flows into the first pipe 23 from the outlet 12, undergoes one purification by the first purification component 30, and then flows to the circulation pipe 24 from the first purification component 30, undergoing another purification by the second purification component 32. That is, when circulating and purifying the liquid in the water tank 1, the liquid in the water tank 1 can undergo at least two purifications in one circulation, improving the circulation and purification effect of the liquid in the water tank 1. In addition, when the first pipe 23 is connected to the second pipe 25, the purified water in the water tank 1 can be purified again when passing through the first pipe 23, which also improves the cleanliness of the liquid flowing to the water-using equipment 90.

[0079] Optionally, the first purification element 30 and the second purification element 32 may be the same or different types of purification equipment, such as using different types of filter bottles 322, such as an activated carbon filter bottle 322 combined with an ultrafiltration membrane.

[0080] In some embodiments, the first purification element 30 may optionally include a filter or a UV sterilization component; and / or the second purification element 32 may include a filter or a UV sterilization component.

[0081] In this embodiment, the first purification element 30 includes a filter or a UV (ultraviolet) sterilization component, and / or the second purification element 32 includes a filter or a UV sterilization component. When the first purification element 30 is a filter, it can effectively filter out particulate impurities in the water supply path; when the first purification element 30 is a UV sterilization component, it can disinfect the liquid in the water supply path with ultraviolet light. Similarly, if the second purification element 32 installed on the circulation pipeline 24 is a filter, it can remove suspended solids in the liquid circulation process in the water tank 1; if it is a UV sterilization component, it can continuously kill bacteria in the circulating liquid.

[0082] It is understandable that the first purification component 30 and the second purification component 32 can both be filters, or both be UV sterilization components, or one can be a filter and the other can be a UV sterilization component.

[0083] like Figure 1 As shown, in some embodiments, optionally, the water purification system further includes: a support 5, a water tank 1 and a second purification component 32 both disposed on the support 5, and the water tank 1 and the support 5 are detachably connected.

[0084] In this embodiment, the water purification system also includes a bracket 5. The water tank 1 and the second purification component 32 are both mounted on the bracket 5. The bracket 5 provides a common mounting base for the water tank 1 and the second purification component 32. In addition, the detachable connection of the water tank 1 allows the water tank 1 to be easily removed from or installed on the bracket 5, thereby facilitating the user to clean the water tank 1, add water, or use large quantities of the purified water in the water tank 1.

[0085] Optionally, the detachable connection between the water tank 1 and the bracket 5 can be achieved through a quick-connect fitting or a threaded interface, which automatically closes the water passage to prevent liquid leakage during disassembly.

[0086] like Figure 1 and Figure 4 As shown, in some embodiments, optionally, the bottom wall of the water tank 1 is provided with a groove 14, the groove 14 is recessed into the water tank 1, and the second purification component 32 is provided below the water tank 1 and is at least partially located in the groove 14.

[0087] In this embodiment, the outer bottom wall of the water tank 1 is provided with a groove 14, which is recessed into the water tank 1. The second purification component 32 is located below the water tank 1 and is at least partially located within the groove 14. This allows part of the structure of the second purification component 32 to be embedded in the space of the groove 14 at the bottom of the water tank 1, reducing the vertical height occupied by the second purification component 32 alone below the water tank 1. This achieves a compact layout of the water tank 1 and the second purification component 32 in the vertical direction, which helps to reduce the overall height or volume of the water purification system, thereby reducing the space utilization rate of the purification system within the refrigeration equipment 9. At the same time, placing the second purification component 32 below and close to the water tank 1 also helps to shorten the length of the circulation pipe 24, improve the circulation purification efficiency, and simplify the pipe layout.

[0088] Optionally, the shape of the groove 14 matches the upper contour of the second purification component 32; optionally, a sealing ring or buffer pad can be provided between the groove 14 and the second purification component 32; optionally, the second purification component 32 can be installed on the bracket 5 corresponding to the groove 14 or at the bottom of the water tank 1 by snap-fit ​​or screw fixing.

[0089] like Figure 4 , Figure 5 , Figure 6 and Figure 8As shown, in some embodiments, optionally, the second purification component 32 includes: a mounting base 320 connected to the bracket 5, the mounting base 320 having an inlet 3200 and an outlet 3202, and the mounting base 320 being rotatable relative to the bracket 5 between a first position and a second position; a filter bottle 322 detachably connected to the mounting base 320, wherein when the filter bottle 322 is connected to the mounting base 320, the inlet 3200 connects to the first outlet 42 and the filter bottle 322, and the outlet 3202 connects to the filter bottle 322 and the second interface 21; when the mounting base 320 is in the first position, the filter bottle 322 is received between the groove 14 and the bracket 5; when the mounting base 320 is in the second position, along the height direction of the water tank 1, the filter bottle 322 is inclined upward relative to the bracket 5 so that there is a gap between the filter bottle 322 and the bracket 5.

[0090] In this embodiment, the second purification component 32 includes a mounting base 320 and a filter bottle 322. The mounting base 320 is connected to the bracket 5 and can rotate relative to the bracket 5 between a first position and a second position. The filter bottle 322 is detachably connected to the mounting base 320. When the filter bottle 322 is connected to the mounting base 320 and the first pipeline 23 is connected to the circulation pipeline 24, the liquid in the water tank 1 can flow from the first pipeline 23 to the circulation pipeline 24 and from the inlet 3200 into the filter bottle 322 for filtration. The filtered liquid flows from the outlet 3202 to the second interface 21 and then back to the water tank 1. In addition, when the mounting base 320 is in the first position, the filter bottle 322 is housed between the groove 14 and the bracket 5. At this time, the filter bottle 322 and the mounting base 320 are in the installed state, which helps to maintain a low overall height and integration of the water purification system. With the mounting base 320 in the second position, the filter bottle 322 is tilted upward relative to the bracket 5 along the height direction of the water tank 1, so that there is a gap between the filter bottle 322 and the bracket 5, thereby providing the user with operating space, making it easy to disassemble and replace the filter bottle 322, and improving the convenience of maintenance of the filter bottle 322.

[0091] Optionally, the mounting base 320 can be rotatably connected to the bracket 5 via a pivot or hinge; optionally, a positioning or locking mechanism can be provided in the first position and / or the second position; optionally, the filter bottle 322 and the mounting base 320 can be detachably connected by a threaded connection, a snap-fit ​​connection or a quick-connect interface.

[0092] like Figure 3 , Figure 4 and Figure 8 As shown, in some embodiments, the water purification system may optionally include a one-way valve 26 disposed in the circulation pipeline 24, the one-way valve 26 being used to open the circulation pipeline 24 in the direction from the first outlet 42 to the second interface 21.

[0093] In this embodiment, the water purification system also includes a one-way valve 26, which is located in the circulation pipeline 24. The one-way valve 26 is used to open the circulation pipeline 24 in the direction from the first outlet 42 to the second interface 21. Thus, when the valve body 4 switches to connect the first pipeline 23 to the circulation pipeline 24, the liquid flowing out of the water tank 1 can pass through the one-way valve 26 and, after purification, flow back to the water tank 1 via the second interface 21. The one-way valve 26 prevents the liquid from flowing back from the second interface 21 to the first outlet 42, ensuring unidirectional flow of the liquid in the circulation purification process. This prevents liquid backflow that may be caused by changes in internal pressure of the water purification system or external interference, ensuring the stability and reliability of the circulation purification process. It avoids problems such as incomplete purification, reduced purification efficiency, or abnormal pressure in the pipeline that may be caused by backflow, thereby ensuring the effectiveness of liquid circulation purification in the water tank 1 and the stability of the system operation.

[0094] Optionally, the check valve 26 may be a spring-loaded, gravity-operated, or diaphragm-type structure; alternatively, the check valve 26 may be located on the circulation pipeline 24 near the second port 21.

[0095] In some embodiments, the water purification system may optionally include a third purification component disposed in the water tank 1 for purifying the liquid in the water tank 1.

[0096] In this embodiment, the water purification system further includes a third purification component, which is disposed in the water tank 1 and is used to purify the liquid stored in the water tank 1, thereby improving the purification effect of the liquid in the water tank 1.

[0097] It is understandable that the third purification component can work in conjunction with the first purification component 30 and the second purification component 32 in the flow path to form a multi-stage purification system. For example, during the interval between circulation purification periods or during liquid settling, the third purification component can effectively inhibit bacterial growth in the water tank 1 or adsorb any odors that may be generated, helping to maintain the cleanliness and freshness of the liquid in the water tank 1 for a long time and improve the water quality of the final water supply equipment 90.

[0098] Optionally, the third purification component may be a filter rod, an ultraviolet lamp, or an ion sterilization module placed inside the water tank 1; alternatively, the third purification component may be a structure that facilitates installation and replacement from the opening of the water tank 1.

[0099] like Figure 7 As shown, in some embodiments, optionally, the water purification system further includes: an inlet pipe 27, which is disposed in the water tank 1, with its first end connected to the inlet 10 and its second end located in and connected to the water tank 1; and an outlet pipe 28, which is disposed in the water tank 1, with its first end connected to the outlet 12 and its second end located in and connected to the water tank 1; wherein the second end of the outlet pipe 28 is located below the second end of the inlet pipe 27.

[0100] In this embodiment, the water purification system also includes an inlet pipe 27 and an outlet pipe 28, both of which are located inside the water tank 1. The first end of the inlet pipe 27 is connected to the inlet 10, and the second end of the inlet pipe 27 is connected to the water tank 1. The first end of the outlet pipe 28 is connected to the outlet 12, and the second end of the outlet pipe 28 is connected to the water tank 1, so that the liquid in the water tank 1 enters the outlet pipe 28 from the second end of the outlet pipe 28 and flows out of the water tank 1 from the first end of the outlet pipe 28. When the first pipeline 23 is connected to the circulation pipeline 24, the purified liquid enters the water tank 1 from the second end of the inlet pipe 27. The second end of the outlet pipe 28 is located below the second end of the inlet pipe 27, which can reduce the resistance when water enters the inlet pipe 27 and also ensure the reliability of water output when the water level in the water tank 1 is low. In addition, the second end of the outlet pipe 28 is located below the second end of the inlet pipe 27, which can ensure the overall circulation of liquid inside the water tank 1, reduce local dead water areas, and help maintain uniform water quality. At the same time, the higher position of the inlet 10 can also reduce the disturbance of the inlet water flow to the sediment that may exist at the bottom of the water tank 1.

[0101] like Figure 1 and Figure 3 As shown, in some embodiments, the water purification system may optionally include: a pump body 6, disposed in the first pipeline 23, for pumping the liquid in the water tank 1 from the outlet 12 to the first pipeline 23, and causing the liquid to flow to the second pipeline 25 or the circulation pipeline 24.

[0102] In this embodiment, the water purification system also includes a pump body 6, which is located in the first pipeline 23. The pump body 6 is used to pump the liquid in the water tank 1 from the outlet 12 to the first pipeline 23. When the first pipeline 23 is connected to the second pipeline 25, the liquid flows to the second pipeline 25. When the first pipeline 23 is connected to the circulation pipeline 24, the liquid flows to the circulation pipeline 24. That is, the water supply to the water-using equipment 90 and the purification and circulation operation of the water tank 1 share the same pump body 6, which improves the utilization rate of the pump body 6, reduces the manufacturing cost and the space occupied by the water purification system in the internal space of the refrigeration equipment 9.

[0103] Optionally, the start and stop of the pump body 6 can be controlled in conjunction with the switching action of the valve body 4; optionally, the pump body 6 can have a speed adjustment function to adapt to different flow requirements.

[0104] Optionally, the pump body 6 is located in the first pipeline 23, between the outlet 12 and the first purification component 30.

[0105] like Figure 18As shown, in some embodiments, optionally, the water purification system further includes: a control device 7, connected to the valve body 4 and the pump body 6, for controlling the operation of the valve body 4 according to preset conditions, so that the valve body 4 switches the connection direction of the first pipeline 23, and controls the pump body 6 to open or close.

[0106] In this embodiment, the water purification system further includes a control device 7, which is connected to the valve body 4 and the pump body 6. The control device 7 controls the operation of the pump body 6 and the valve body 4 according to preset conditions, thereby switching the connection direction of the first pipeline 23. Specifically, the control device 7 receives external commands or, when the operating parameters meet preset conditions, sends a control signal to the valve body 4 to switch the first pipeline 23, connecting it to the circulation pipeline 24 or the second pipeline 25.

[0107] Optionally, preset conditions include the pump body 6 shutdown duration, timed start-up, water usage request signal, or water quality sensor feedback signal.

[0108] like Figure 18 As shown, in some embodiments, optionally, the water purification system further includes: a detection element 8, connected to the pump body 6 and the control device 7, for detecting the operating parameters of the pump body 6; wherein, the preset conditions include the shut-off duration of the pump body 6, the control device 7 determines the shut-off duration of the pump body 6 according to the operating parameters, and when the shut-off duration is greater than or equal to the preset duration, controls the pump body 6 to open, and controls the valve body 4 to switch the connection direction of the first pipeline 23 so that the first pipeline 23 is connected to the circulation pipeline 24.

[0109] In this embodiment, the water purification system also includes a detection element 8, which is connected to the pump body 6 and the control device 7. The detection element 8 is used to detect the operating parameters of the pump body 6. The control device 7 determines the shutdown duration of the pump body 6 based on the operating parameters. If the shutdown duration is greater than or equal to the preset duration, it indicates that the water tank 1 has been in a static state for a long time. At this time, the pump body 6 is turned on, and the valve body 4 is controlled to switch the connection direction of the first pipeline 23 so that the first pipeline 23 is connected to the circulation pipeline 24, thereby circulating and purifying the liquid in the water tank 1 and improving the water quality of the liquid in the water tank 1.

[0110] Optionally, the detection element 8 can be a timing module, and the preset duration can be set by the user on the control device 7 according to their usage habits or preset by the manufacturer.

[0111] Optionally, the inlet 10 and the outlet 12 are both located on the same side of the water tank 1. Optionally, the pump body 6 and the first purification component 30 are located on the same side of the water tank 1.

[0112] like Figure 19 , Figure 20 , Figure 21 and Figure 22As shown, according to one embodiment of the present invention, a refrigeration device 9 is also provided, comprising: a water-using device 90; and a water purification system as provided in any of the above embodiments, wherein the water-using device 90 is connected to a third interface 22.

[0113] The refrigeration equipment 9 provided by the present invention has all the beneficial effects of the water purification system because it includes the water purification system proposed in any of the above embodiments.

[0114] like Figure 20 , Figure 21 and Figure 22 As shown, in some embodiments, the water-using device 90 may optionally include a water outlet device 900 and / or an ice-making assembly 902.

[0115] In this embodiment, the water-using device 90 includes a water outlet 900 and / or an ice-making assembly 902. The water outlet 900 is used to provide drinking water to the user, and the ice-making assembly 902 is used to make ice. The third interface 22 of the water purification system can be connected to the water outlet 900 and / or the ice-making assembly 902 through a corresponding second pipe 25. When the valve body 4 switches to connect the first pipe 23 to the second pipe 25 connected to the water outlet 900, the purified liquid flows to the water outlet 900 for the user to use; when connected to the second pipe 25 connected to the ice-making assembly 902, it provides purified water to the ice-making assembly 902 for making ice.

[0116] like Figure 19 , Figure 20 , Figure 21 and Figure 22 As shown, in some embodiments, optionally, the refrigeration device 9 further includes a housing 92, which includes a refrigerator compartment 920 and a freezer compartment 922, with at least a portion of the water tank 1 and the purification flow path 2 disposed in the refrigerator compartment 920.

[0117] In this embodiment, the refrigeration equipment 9 also includes a housing 92, which includes a refrigerator compartment 920 and a freezer compartment 922. At least a portion of the water tank 1 and the purification flow path 2 are located in the refrigerator compartment 920. The low-temperature environment provided by the refrigerator compartment 920 is beneficial for providing users with low-temperature water directly. It can also inhibit the growth of microorganisms in the water tank 1 and at least a portion of the purification flow path 2. At the same time, it avoids the risk of freezing inside the pipes or components that may be caused by the freezer compartment 922, ensuring the smooth flow and reliability of the water purification system. In addition, placing the water tank 1 and part of the pipes in the refrigerator compartment 920 also makes it convenient for users to perform operations such as adding water and cleaning.

[0118] Optionally, the purification component 3 can also be installed in the refrigerator compartment 920 for easy maintenance and replacement. Optionally, the ice-making component 902 is installed in the freezer compartment 922.

[0119] Optionally, the refrigeration equipment 9 includes a refrigerator or freezer.

[0120] In some embodiments, the water purification system may optionally include a support frame 5, a first purification component 30 and / or a second purification component 32, a water tank 1, a pump body 6, a valve body 4 (e.g., a one-inlet multi-outlet valve), and a one-way valve 26, etc. Optionally, the first purification component 30 is a UV sterilization component, and the second purification component 32 is a filter. The filter includes a mounting base 320 and a water purification module, the water purification module including a filter bottle 322.

[0121] Optionally, the bracket 5 is equipped with a position switch and a water level sensor for the water tank 1. The water level sensor can be a capacitive non-contact water level sensor. When the water tank 1 is installed in place, the water tank 1 partially presses the position switch, causing the refrigerator to sense that the water tank 1 is installed in place. If the water tank 1 is not sensed to be in place, the refrigerator cannot start to add water to the water tank 1. The water level sensor monitors the water level in the water tank 1 in real time. When the water level is insufficient, it actively sends a signal to the control device 7. The control device 7 supplies power to the inlet valve 290 to complete the water filling action of the water tank 1.

[0122] Optionally, the back of the water tank 1 is provided with an inlet 10 and an outlet 12. When the water tank 1 is installed in place, the inlet 10 and the outlet 12 are sealed with the inlet and outlet silicone sealant respectively installed and fixed on the bracket 5. This mating structure allows the water tank 1 to be pulled out and disassembled horizontally. When the user needs to use a large amount of purified water, the water tank 1 can be pulled out for emptying. After pulling out the water tank 1, the water purification module is exposed. At this time, the water purification module can be rotated upward at a certain angle to make it easier to grip, and then the water purification module can be rotated clockwise to replace it.

[0123] Optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 10 , Figure 11 , Figure 14 and Figure 16 As shown, when the water purification system includes a second purification component 32, the second purification component 32 can be installed in the circulation path. When purifying the water tank 1, purified water flows out from the water purification module, flows through the circulation pipe 24 into the inlet silicone, and then flows into the water tank 1 from the inlet 10. When there is a need for water, water is supplied to the outside from the outlet 12 of the water tank 1. Optionally, the second port of the inlet pipe 27 in the water tank 1 is located near the upper part of the water tank 1 to reduce water flow resistance. The second port of the outlet pipe 28 of the water tank 1 extends to the bottom of the water tank 1 to ensure water supply even at low water levels.

[0124] Optionally, such as Figures 1 to 17As shown, when the water purification system includes the first purification component 30, the first purification component 30 is installed on the first pipe 23 of the purification flow path 2. When water-using equipment 90 such as the refrigerator's ice maker or distributor requests water supply, the pump body 6 is powered on and starts, pumping water out through the outlet 12 of the water tank 1. The UV sterilization component is activated to perform immediate sterilization treatment on the flowing water. When the water enters the one-in-three-out valve (i.e., valve body 4), water supply is achieved by switching different conduction positions of the valve body 4. During the water supply process, the flow path connected to the one-in-three-out valve and the one-way valve 26 is in a closed state to ensure that water quality circulation purification is not activated during water supply.

[0125] Optionally, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, when water tank 1 is replenished with external water, the water purification system includes an inlet valve 290. Tap water is connected to inlet 10 via inlet pipe 29 and flows through inlet valve 290. Inlet valve 290 is a normally closed valve that can be opened when energized. When inlet valve 290 is opened, tap water flows into inlet 3200 of mounting base 320. The water purification module is connected to mounting base 320, and the tap water is purified by the water purification module and flows out from outlet 3202 of mounting base 320, flowing into water tank 1 via inlet pipe 29. Optionally, as... Figure 8 , Figure 9 and Figure 15 As shown, when the water tank 1 is replenished with external tap water, the second purification component 32 may not be installed on the circulation pipe 24. For example, one end of the circulation pipe 24 with the second interface 21 is directly connected between the liquid outlet 3202 of the mounting base 320 and the water inlet 10 of the water tank 1. That is, the second purification component 32 is only used to purify the tap water replenishment.

[0126] Optionally, such as Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 16 and Figure 17 As shown, water tank 1 may not be connected to an external water source 94. For example, water tank 1 may also be equipped with a water inlet 16, through which users can add water to water tank 1.

[0127] Generally, during water supply, the water level can be synchronously detected by the water level sensor on water tank 1. When the water purification system is connected to tap water and includes an inlet valve 290, the water replenishment and shut-off actions during water supply are achieved by switching the closed and open states of the inlet valve 290. Optionally, based on water usage and user needs, the inlet valve 290 can be set not to be opened during water supply, and no water replenishment operation can be performed.

[0128] Optionally, when it is detected that the pump body 6 has not been activated for a long time, i.e., the water in the water tank 1 has been stored for a long time, the system periodically enters the circulation purification mode of the water tank 1 according to the set time. Optionally, after entering the circulation purification mode of the water tank 1, if the water purification system is equipped with an inlet valve 290, the inlet valve 290 is in the closed state. In the circulation purification mode, the pump body 6 and UV sterilization are activated, and only the flow path connected to the one-in-three-out valve and the one-way valve 26 is open. At this time, the water in the water tank 1 is drawn, sterilized by UV, and then flows into the circulation pipeline 24 through the flow path connected to the one-in-three-out valve and the one-way valve 26. If the circulation pipeline 24 is equipped with a filter, the liquid enters the water purification module through the liquid inlet 3200 of the mounting base 320, is treated by the water purification module, and then flows into the water tank 1, forming a water quality constant freshness treatment circulation water circuit. Because the liquid in water tank 1 flows out of water tank 1 from the bottom and flows back to water tank 1 from the top, it can ensure that all the water in water tank 1 can be pumped out for purification.

[0129] Optionally, the UV sterilization component can be replaced with a UV lamp, which is arranged inside the water tank 1 or corresponding to the water tank 1, to periodically sterilize the water inside the water tank 1. The flow path for circulating and purifying the water tank 1 can share the pump body 6, UV sterilization component, and valve body 4, as proposed in the embodiment, with the water supply flow path. Alternatively, a separate water pump, valve, and UV sterilization passage can be provided, specifically for the circulation of water for maintaining water quality freshness and purification.

[0130] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installed," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "linked" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0131] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0132] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A water purification system, characterized in that, The water purification system is used in refrigeration equipment, and the water purification system includes: A water tank, wherein the water tank is provided with an inlet and an outlet, and the inlet and the outlet are located on the same side of the water tank; A purification flow path includes a first interface, a second interface, and a third interface. The first interface is connected to the water outlet, the second interface is connected to the water inlet, and the third interface is used to connect water-using equipment. The first interface can be selectively connected to either the second interface or the third interface. A purification component, disposed in the purification flow path, is used to allow the liquid flowing out of the water tank from the outlet to be purified and then flow back to the water tank through the second interface when the first interface and the second interface are connected, so as to circulate and purify the liquid in the water tank.

2. The water purification system according to claim 1, characterized in that, Also includes: The valve body is provided with an inlet, a first outlet and at least two second outlets; The purification flow path includes a first pipeline, a circulation pipeline, and at least two second pipelines. The first pipeline is provided with the first interface, the circulation pipeline is provided with the second interface, and the second pipeline is provided with the third interface. The at least two second pipelines are used to connect different water-using devices. The inlet is connected to the first pipeline, the first outlet is connected to the circulation pipeline, and at least two second outlets are respectively connected to at least two second pipelines. The valve body is used to switch the connection direction of the first pipeline so that the first pipeline is connected to the circulation pipeline or to at least one second pipeline.

3. The water purification system according to claim 2, characterized in that, The purification component includes: A first purification element, disposed in the first pipeline, is used to purify the liquid flowing through the first pipeline; and / or The second purification component is installed in the circulation pipeline and is used to purify the liquid flowing through the circulation pipeline.

4. The water purification system according to claim 3, characterized in that, The first purification element includes a filter or a UV sterilization component; and / or The second purification component includes a filter or a UV sterilization component.

5. The water purification system according to claim 3, characterized in that, Also includes: The water tank and the second purification component are both mounted on the bracket, and the water tank and the bracket are detachably connected.

6. The water purification system according to claim 5, characterized in that, The outer bottom wall of the water tank is provided with a groove, which is recessed into the water tank. The second purification component is located below the water tank and is at least partially located in the groove.

7. The water purification system according to claim 6, characterized in that, The second purification component includes: The mounting base is connected to the bracket, and the mounting base is provided with a liquid inlet and a liquid outlet, and the mounting base can rotate relative to the bracket between a first position and a second position; The filter bottle is detachably connected to the mounting base. When the filter bottle is connected to the mounting base, the inlet is connected to the first outlet and the filter bottle, and the outlet is connected to the filter bottle and the second interface. With the mounting base in the first position, the filter bottle is received between the groove and the bracket; With the mounting base in the second position, the filter bottle is tilted upward relative to the bracket along the height direction of the water tank, so that there is a gap between the filter bottle and the bracket.

8. The water purification system according to claim 2, characterized in that, Also includes: A one-way valve is provided in the circulation pipeline, and the one-way valve is used to open the circulation pipeline in the direction from the first outlet to the second interface.

9. The water purification system according to any one of claims 1 to 8, characterized in that, Also includes: The third purification component is located inside the water tank and is used to purify the liquid inside the water tank.

10. The water purification system according to any one of claims 1 to 8, characterized in that, Also includes: A water inlet pipe is provided inside the water tank. The first end of the water inlet pipe is connected to the water inlet, and the second end of the water inlet pipe is located inside the water tank and connected to the water tank. A water outlet pipe is provided inside the water tank. The first end of the water outlet pipe is connected to the water outlet, and the second end of the water outlet pipe is located inside the water tank and connected to the water tank. The second end of the outlet pipe is located below the second end of the inlet pipe.

11. The water purification system according to any one of claims 2 to 8, characterized in that, Also includes: The pump body is located in the first pipeline and is used to pump the liquid in the water tank from the outlet to the first pipeline and to make the liquid flow to the second pipeline or the circulation pipeline.

12. The water purification system according to claim 11, characterized in that, Also includes: A control device, connected to the valve body and the pump body, is used to control the operation of the valve body according to preset conditions, so as to switch the connection direction of the first pipeline and control the pump body to open or close.

13. The water purification system according to claim 12, characterized in that, Also includes: A detection component, connected to the pump body and the control device, is used to detect the operating parameters of the pump body; The preset conditions include the pump body's shutdown duration. The control device determines the pump body's shutdown duration based on the operating parameters. If the shutdown duration is greater than or equal to the preset duration, the control device controls the pump body to open and controls the valve body to switch the connection direction of the first pipeline so that the first pipeline is connected to the circulation pipeline.

14. A refrigeration device, characterized in that, include: Water-using equipment; In any one of claims 1 to 13, the water-using equipment is connected to the third interface.

15. The refrigeration equipment according to claim 14, characterized in that, The water-using equipment includes a water outlet device and / or an ice-making assembly.

16. The refrigeration equipment according to claim 14, characterized in that, Also includes: The housing includes a refrigerator compartment and a freezer compartment, with at least a portion of the water tank and the purification flow path located in the refrigerator compartment.

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