Water production equipment and cleaning method thereof

Abstract

The invention relates to water production equipment and a cleaning method thereof. The water production equipment comprises a raw water tank, a filtering assembly, a pure water tank and a water adjusting assembly which are sequentially arranged in the water flow direction. The raw water tank is connected with the filtering assembly, the filtering assembly is connected with the pure water tank, the pure water tank is connected with the raw water tank through a water return pipeline, and the pure water tank is connected with the water adjusting assembly and / or water using equipment. The pure water tank is provided with a water outlet, and the water outlet of the pure water tank is connected with the water transfer assembly and / or the water consumption equipment through pipelines so as to convey the pure water to the water transfer assembly for continuous processing or directly output the pure water to a user side. The pure water tank is communicated with the raw water tank through the water return pipeline, and water flow in the pure water tank can flow back into the raw water tank and enters the pure water tank for reuse after being filtered for the second time, so that the influence of bacteria generated after the pure water is preserved for a long time on the body health of a user can be avoided.

Description

Technical Field

[0001] This invention relates to the field of drinking water, and more specifically to a water purification device and its cleaning method. Background Technology

[0002] With the continuous advancement of science and technology and the sustained improvement of people's living standards, home sparkling water makers that can produce sparkling water are becoming increasingly widely used in people's lives. These makers create refreshing sparkling water by dissolving carbon dioxide gas in water. However, existing technologies often result in bacteria growing inside the water tank after prolonged use, requiring regular cleaning. Current cleaning methods, however, have shortcomings, leaving bacterial residues even after cleaning. Summary of the Invention

[0003] This invention provides the following technical solution: A water purification device includes: a raw water tank, a filter assembly, a pure water tank, and a water conditioning assembly arranged sequentially along the water flow direction; The raw water tank is connected to the filter assembly, the filter assembly is connected to the pure water tank, the pure water tank is connected to the raw water tank through a return water pipe, and the pure water tank is connected to the water regulating assembly and / or water-using equipment.

[0004] Furthermore, the water purification device also includes: a base; The pure water tank is detachably mounted on the base. The base is provided with an outlet and an inlet. The pure water tank is provided with an outlet and an inlet. The inlet mates with the inlet and the outlet mates with the outlet. The inlet is connected to the filter assembly, and the outlet is connected to an outlet pipe, which is used to connect to the water regulating assembly and / or water-using equipment.

[0005] Furthermore, it also includes: water pumps and four-way valves; The water pump is connected to the base through the outlet pipe, and the water pump is connected to the four-way valve. The four-way valve is also connected to a first pipe, a second pipe, and a return pipe. The first pipe is connected to the water-using equipment, and the second pipe is used to connect to the water regulating equipment.

[0006] Furthermore, the water conditioning assembly includes: a mixing tank, a cooling assembly, a heating assembly, and a carbon canister; The heating component is disposed on the first pipe, the cooling component is disposed on the second pipe, the mixing tank is connected to the second pipe, the carbon canister is connected to the mixing tank, and the carbon canister is used to continuously output gas into the mixing tank.

[0007] Furthermore, it also includes: a cold water outlet pipe; The cold water outlet pipe is installed on the second pipe, and the second pipe is equipped with a control valve for connecting or disconnecting the water flow in the second pipe; the cold water outlet pipe is also connected to the mixing tank, and the cold water outlet pipe is used to output ice water or to output sparkling water.

[0008] Furthermore, it also includes: booster pumps and carbon canisters; The carbon canister is connected to the mixing tank, the booster pump is connected to the second pipeline, and the booster pump is connected to the mixing tank. The booster pump is used to pressurize the pure water entering the mixing tank.

[0009] Furthermore, a nozzle assembly is also provided inside the pure water tank; The nozzle assembly includes: a rotating component and a nozzle; The rotating component is disposed on the top wall of the pure water tank. The rotating component is connected to the nozzle, and the nozzle is connected to the raw water tank. The rotating component is used to drive the nozzle to rotate.

[0010] Furthermore, it also includes: a TDS detector and a controller; The TDS detector is installed in the pure water tank, and the controller is installed in the water purification equipment. The TDS detector is connected to the controller, and the controller is also connected to the four-way valve, the rotating component, and the nozzle.

[0011] Furthermore, the refrigeration assembly includes: a refrigeration component and a heat-conducting component; The refrigeration component is disposed in the cooling conductor, which has a first cooling conductor and a second cooling conductor. The pure water tank is disposed in the first cooling conductor, and the mixing tank is disposed in the second cooling conductor.

[0012] The present invention also provides a cleaning method for water purification equipment, comprising: The TDS value collected by the TDS detector in the pure water tank is obtained, and it is determined whether the current TDS value is greater than a preset value. When the controller determines that the current TDS value is greater than the preset value, it controls the four-way valve to connect the raw water tank and the pure water tank, and at the same time controls the water pump to work to transport the pure water in the pure water tank to the raw water tank; The controller controls the operation of the rotating component and the nozzle, so that the rotating component rotates inside the pure water tank and drives the nozzle to clean the side wall of the pure water tank.

[0013] The present invention also provides a cleaning method for water purification equipment, comprising: The TDS value collected by the TDS detector in the pure water tank is obtained, and it is determined whether the current TDS value is greater than a preset value. When the controller determines that the current TDS value is greater than the preset value, it controls the four-way valve to connect the raw water tank and the pure water tank, and at the same time controls the water pump to work to transport the pure water in the pure water tank to the raw water tank; Remove the pure water tank from the base, clean the pure water tank, and then reinstall the pure water tank on the base.

[0014] The raw water tank is used to store untreated water. It can be connected to municipal pipelines to provide water for water purification equipment. The filter assembly removes impurities from the raw water. The pure water tank stores the purified water after filtration. The pure water tank has an outlet, which is connected to the water conditioning assembly and / or water-using equipment via pipes to deliver the pure water to the water conditioning assembly for further processing or directly to the user. The return water pipe connects the pure water tank and the raw water tank, allowing the water in the pure water tank to flow back into the raw water tank. After secondary filtration, the water then enters the pure water tank for reuse. This prevents bacteria from growing in the purified water after long-term storage and affecting the user's health. Attached Figure Description To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is one of the water circuit diagrams of the water purification equipment provided in the embodiments of the present invention; Figure 2 This is the second water circuit diagram of the water purification device provided in the embodiments of the present invention; Figure 3 The third water circuit diagram of the water purification device provided in the embodiments of the present invention; Figure 4 A schematic diagram of the structure of the cooling component, the pure water tank, and the mixing tank is provided for embodiments of the present invention; Figure 5 This is a schematic diagram of the structure of the nozzle inside the pure water tank provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the overall structure of the water purification equipment provided in an embodiment of the present invention; Figure 7 A flowchart of a water purification equipment cleaning method provided in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 100-Water purification equipment; 10-Raw water tank; 20-Filter assembly; 30-Pure water tank; 31-Outlet water pipe; 40-Water conditioning assembly; 41-Mixing tank; 42-Refrigeration assembly; 421-Refrigeration component; 422-Cooling component; 423-First cooling section; 424-Second cooling section; 43-Heating assembly; 44-Carbon canister; 50-Base; 60-Water pump; 70-Four-way valve; 71-First pipe; 72-Second pipe; 73-Return water pipe; 80-Cold water outlet pipe; 81-Control valve; 82-Booster pump; 84-TDS detector; 90-Sprayer assembly; 91-Rotating component; 92-Nozzle; 93-Water-using equipment. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0019] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] With the continuous advancement of science and technology and the sustained improvement of people's living standards, home sparkling water makers that can produce sparkling water are becoming increasingly widely used in people's lives. These makers create refreshing sparkling water by dissolving carbon dioxide gas in water. However, existing technologies often result in bacteria growing inside the water tank after prolonged use, requiring regular cleaning. Current cleaning methods, however, have shortcomings, leaving bacterial residues even after cleaning.

[0021] Please see Figure 1 and Figure 6 A water purification device 100 includes: a raw water tank 10, a filter assembly 20, a pure water tank 30, and a water conditioning assembly 40 arranged sequentially along the water flow direction; The raw water tank 10 is connected to the filter assembly 20, the filter assembly 20 is connected to the pure water tank 30, the pure water tank 30 is connected to the raw water tank 10 through the return water pipe 73, and the pure water tank 30 is connected to the water regulating assembly 40 and / or the water-using equipment 93.

[0022] The water purification device 100 of this invention includes: a raw water tank 10, which is used to store untreated water and can be connected to a municipal pipeline to provide a water source for the water purification device 100; a filter assembly 20, which is used to remove impurities from the raw water; and a pure water tank 30, which is used to store pure water filtered by the filter assembly. The pure water tank 30 is provided with an outlet, which is connected to a water regulating assembly 40 and / or a water user device 93 via a pipe to deliver pure water to the water regulating assembly 40 for further processing or to be directly output to the user. A return water pipe 73 connects the pure water tank 30 to the raw water tank 10, allowing the water in the pure water tank 30 to flow back to the raw water tank 10, undergo secondary filtration, and then re-enter the pure water tank 30 for reuse. This avoids the risk of bacteria from long-term storage of pure water affecting the user's health. Please see Figure 1 and Figure 2 In some embodiments, the water purification device 100 further includes: a base 50; The pure water tank 30 is detachably mounted on the base 50. The base 50 is provided with a water outlet and a water inlet. The pure water tank 30 is provided with a water outlet and a water inlet. The water inlet cooperates with the water inlet and the water outlet cooperates with the water outlet. The water inlet is connected to the filter assembly 20, and the water outlet is connected to the water outlet pipe 31, which is used to connect to the water regulating assembly 40 and / or the water-using equipment 93.

[0023] Understandably, the water purification device also includes a base 50, which is installed within the water purification equipment 100. The pure water tank 30 is detachably mounted on the base 50, specifically using a snap-fit ​​structure to allow complete separation of the pure water tank 30 from the base 50. This facilitates cleaning of the water purification equipment 100 after prolonged use. The base 50 is provided with an outlet and an inlet. To ensure compatibility between the pure water tank 30 and the base 50, an outlet and an inlet are also provided on the base 50. When the pure water tank 30 is installed on the base 50, the inlet is inserted into the inlet hole, and the outlet is inserted into the outlet hole to achieve connection. Thus, after the filter assembly 20 treats the raw water, it enters the pure water tank 30 through the inlet of the base 50 for storage. When water is needed, the water in the pure water tank 30 enters the outlet pipe 31 through the outlet of the base 50 to deliver pure water to the water regulating assembly 40 and / or the water-using equipment 93. This allows for quick disassembly of the pure water tank 30, facilitating cleaning of the pure water tank 30 after prolonged use or after long-term storage of the pure water within it.

[0024] Please see Figure 1 and Figure 2 In some embodiments, it also includes: a water pump 60 and a four-way valve 70; The water pump 60 is connected to the base 50 through the outlet pipe 31. The water pump 60 is also connected to the four-way valve 70. The four-way valve 70 is also connected to a first pipe 71, a second pipe 72, and a return pipe 73. The first pipe 71 is connected to the water-using equipment 93, and the second pipe 72 is used to connect to the water regulating equipment.

[0025] Understandably, this also includes a water pump 60 and a four-way valve 70. The water pump 60 is installed in the water purification equipment 100 and connected to the base 50 via the outlet pipe 31. This allows the water pump 60 to pressurize the pure water in the pure water tank 30. The water pump 60 is also connected to the four-way valve 70, which is connected to the first pipe 71, the second pipe 72, and the return water pipe 73. The four-way valve 70 can switch the water flow path: when connected to the first pipe 71, pure water is directly delivered to the water-using equipment 93 or directly to the user; when connected to the second pipe 72, pure water enters the water regulating component 40 for cooling or sparkling water preparation; when connected to the return water pipe 73, pure water can flow back to the original water tank 10 for recycling. This allows for water flow control. Of course, the four-way valve 70 can also simultaneously connect the first pipe 71 and the second pipe 72, allowing the water to enter the user's end or the water regulating equipment to prepare the water needed by the user.

[0026] Understandably, the aforementioned water pump 60 is used to transport pure water from the pure water tank 30. Specifically, a centrifugal pump or a plunger pump can be used. Its function is to transport the water from the pure water tank 30 to different pipelines through the outlet pipe 31. The four-way valve 70 refers to a valve with four ports. Specifically, an electromagnetic four-way valve 70 or a manual four-way valve 70 can be used. Its function is to control the water flow direction by switching the port connection status. The first pipeline 71 is used to transport pure water to external water terminals. The second pipeline 72 is used to transport pure water to the water regulating component 40 for temperature or gas mixing treatment. The return water pipeline 73 is used to return the water that needs to be circulated in the pure water tank 30 to the original water tank 10.

[0027] Please see Figures 1 to 3 In some embodiments, the water conditioning assembly 40 includes: a mixing tank 41, a cooling assembly 42, a heating assembly 43, and a carbon canister 44; The heating component 43 is disposed on the first pipe 71, the cooling component 42 is disposed on the second pipe 72, the mixing tank 41 is connected to the second pipe 72, the carbon canister 44 is connected to the mixing tank 41, and the carbon canister 44 is used to continuously output gas into the mixing tank 41.

[0028] Understandably, the water conditioning assembly 40 includes: a mixing tank 41, a cooling assembly 42, a heating assembly 43, and a carbon canister 44. The mixing tank 41 is a container used to mix pure water and gas, where gas injection causes the pure water to form carbonated water. The cooling assembly 42 is used to generate ice water, which can be achieved using a semiconductor cooling chip or a compressor refrigeration device, reducing the temperature of the pure water flowing through the second pipe 72 through heat exchange. The heating assembly 43 is used to heat the pure water in the first pipe 71. The carbon canister 44 is a container for storing compressed gas, used to stably supply gas to the mixing tank 41.

[0029] Understandably, the heating element 43 is installed on the first pipe 71, allowing it to heat the pure water flowing through it to meet the user's hot water needs. The cooling element 42 is installed on the second pipe 72, enabling cooling as pure water flows through it. The second pipe 72 is connected to the mixing tank 41, allowing pure water to be introduced into it. After receiving the cold water through the second pipe 72, the mixing tank 41 continuously outputs gas into it, mixing the cold water with the gas to form ice water or sparkling water. The cooling element 42 and the heating element 43 are installed on separate pipes to avoid thermal interference. The combination of the mixing tank 41 and the carbon canister 44 provides the dual function of providing both cold drinks and sparkling water.

[0030] Please see Figures 1 to 3 In some implementations, it also includes: a cold water outlet pipe 80; The cold water outlet pipe 80 is installed on the second pipe 72, and the second pipe 72 is equipped with a control valve 81. The control valve 81 is used to connect or disconnect the water flow in the second pipe 72. The cold water outlet pipe 80 is also connected to the mixing tank 41, and the cold water outlet pipe 80 is used to output ice water or to output sparkling water.

[0031] Understandably, this also includes: a cold water outlet pipe 80, which is used to directly output cold water to users. The cold water outlet pipe 80 is connected to the second pipe 72, so that the pure water in the second pipe 72 can be cooled and discharged to the user end for direct use through the cold water outlet pipe 80; the cold water outlet pipe 80 is also connected to the mixing tank 41, so that the sparkling water in the mixing tank 41 can also be discharged to the user end through the cold water outlet pipe 80. In order to allow the cold water outlet pipe 80 to discharge either the pure water in the second pipe 72 or the sparkling water in the mixing tank 41, a control valve 81 is installed on the second pipe 72 so that the control valve 81 can control whether the water flow in the second pipe 72 can be discharged through the cold water outlet pipe 80; specifically, the control valve 81 installed on the second pipe 72 does not affect the water flow into the mixing tank 41, but it can control whether the cold water is discharged through the cold water outlet pipe 80; when the control valve 81 is in the open state, the low-temperature pure water in the second pipe 72 can flow to the cold water outlet pipe 80. When the control valve 81 is closed, the cold water outlet pipe 80 is closed, so cold water cannot be output and thus the bubble water is discharged.

[0032] Please see Figures 1 to 3 In some embodiments, it also includes: a booster pump 82 and a carbon canister 44; The carbon canister 44 is connected to the mixing tank 41, the booster pump 82 is connected to the second pipeline, and the booster pump 82 is connected to the mixing tank 41. The booster pump 82 is used to pressurize the pure water entering the mixing tank 41.

[0033] Understandably, the water purification equipment 100 also includes a booster pump 82 and a carbon canister 44. The carbon canister 44 is connected to the mixing tank 41, and the booster pump 82 is connected to the second pipeline and the mixing tank 41. That is, the booster pump 82 is located between the second pipeline and the mixing tank 41. When the control valve 81 is opened, the pure water in the second pipeline is pressurized by the booster pump 82 and enters the mixing tank 41 at high speed. At the same time, the carbon canister 44 continuously releases gas to the mixing tank 41 through an independent pipeline. The turbulence effect generated by the pressurized water flow promotes the rapid dispersion and dissolution of the gas, thereby achieving the preparation of sparkling water.

[0034] Please see Figure 5 In some embodiments, a nozzle assembly 90 is also provided inside the pure water tank 30; The nozzle assembly 90 includes: a rotating component 91 and a nozzle 92; The rotating component 91 is disposed on the top wall of the pure water tank. The rotating component 91 is connected to the nozzle 92, and the nozzle 92 is connected to the raw water tank 10. The rotating component 91 is used to drive the nozzle 92 to rotate.

[0035] Understandably, the pure water tank 30 also includes a nozzle assembly 90, which comprises a rotating component 91 and a nozzle 92. The rotating component 91 is mounted on the top wall of the pure water tank and can rotate around the top wall. This rotation can be achieved by a motor that drives the nozzle 92 to rotate around its axis via the rotation of its output shaft. The nozzle 92 is mounted on the rotating component 91 and is configured with a fan-shaped nozzle containing multiple spray holes. The angle of the spray holes can cover the cleaning area of ​​the side wall of the pure water tank 30.

[0036] Understandably, when the interior of the pure water tank 30 needs cleaning, water from the raw water tank 10 is delivered to the nozzle 92 via a connecting pipe. The rotating component 91 drives the nozzle 92 to rotate around its axis, causing the sprayed water to form a rotating sweeping trajectory that covers the side wall surface of the pure water tank 30. During this process, the rotational speed of the rotating component 91 can be adjusted, for example, by using a stepper motor to control the rotation frequency, thereby changing the coverage density of the water flow. This removes deposits from the surface of the pure water tank, ensuring that the interior of the tank remains clean for a long time.

[0037] In some implementations, it also includes: a TDS detector 84 and a controller; The TDS detector 84 is installed in the pure water tank, and the controller is installed in the water purification equipment 100. The TDS detector 84 is connected to the controller, and the controller is also connected to the four-way valve 70, the rotating part 91, and the nozzle 92.

[0038] Understandably, a TDS detector 84 is installed in the pure water tank. The TDS detector 84 is used to detect the total dissolved solids content in the water and indirectly reflects the water purity by measuring the conductivity of the water. A controller is also installed in the water purification equipment 100. The controller is used to receive sensor signals and output control commands. The TDS detector 84 is connected to the controller. When the TDS detector 84 detects the TDS value in the pure water tank, it sends it to the controller. When the controller determines that the TDS value exceeds a preset threshold, the controller sends a command to the four-way valve 70 to connect the return water pipe 73 between the pure water tank and the raw water tank 10. At the same time, the water pump 60 is started to discharge the pure water in the pure water tank 30 to the raw water tank 10, so as to realize the return of pure water and reuse the pure water after secondary filtration by the filter component 20, thereby reducing water waste.

[0039] Understandably, once the pure water in the pure water tank is drained, the controller can control the rotating part 91 and the nozzle 92 to work and clean the inner wall of the pure water tank, thus achieving rapid cleaning of the pure water tank.

[0040] Please see Figure 4 In some embodiments, the refrigeration assembly 42 includes: a refrigeration component 421 and a cooling component 422; The refrigeration component 421 is disposed in the cooling component 422. The cooling component 422 has a first cooling part 423 and a second cooling part 424. The pure water tank 30 is disposed in the first cooling part 423, and the mixing tank 41 is disposed in the second cooling part 424.

[0041] Understandably, the refrigeration assembly 42 includes a refrigeration element 421 and a cooling conductor 422. The refrigeration element 421 generates cooling capacity and can be implemented using a semiconductor cooling chip or a compressor refrigeration device. The cooling conductor 422 is made of a thermally conductive material and its function is to evenly conduct the cooling capacity generated by the refrigeration element 421 to different areas. The refrigeration element 421 is disposed within the cooling conductor 422, so that when the refrigeration element 421 generates cooling capacity, it can conduct the cooling capacity to the first cooling conductor 423 and the second cooling conductor 424. After the refrigeration element 421 is activated, the pure water tank 30 disposed in the first cooling conductor 423 can transfer the cooling capacity to the pure water tank 30 through the first cooling conductor 423 of the cooling conductor 422 to reduce the internal temperature of the pure water tank 30. Similarly, the second cooling conductor 424 transfers the cooling capacity to the mixing tank 41, causing the water temperature in the mixing tank 41 to drop. In this way, the cooling needs of both the pure water tank 30 and the mixing tank 41 can be met simultaneously. For example, when the mixing tank 41 needs to prepare ice water, the second cooling unit 424 can concentrate the cooling energy to the mixing tank 41 and simultaneously cool the pure water tank 30 to improve the cooling efficiency and meet the temperature requirements of different water use scenarios.

[0042] Please see Figure 7 The present invention also provides a cleaning method for a water purification device 100, comprising: The TDS value collected by the TDS detector 84 in the pure water tank 30 is obtained, and it is determined whether the current TDS value is greater than a preset value. When the controller determines that the current TDS value is greater than the preset value, it controls the four-way valve 70 to connect the raw water tank 10 and the pure water tank 30, and at the same time controls the water pump 60 to work to transport the pure water in the pure water tank 30 to the raw water tank 10. The controller controls the operation of the rotating component 91 and the nozzle 92, so that the rotating component 91 rotates inside the pure water tank and drives the nozzle to clean the side wall of the pure water tank.

[0043] Understandably, the TDS detector 84 refers to a sensor used to detect the total dissolved solids content in water. Specifically, it can be implemented using a conductivity sensor, indirectly reflecting the TDS value by measuring the conductivity of the water. The TDS detector 84 can periodically retrieve the TDS value of the pure water tank 30, for example, once every hour or once every two hours, and feed the retrieved TDS value back to the controller. The controller then determines whether the current TDS value in the pure water tank meets the water demand. When the TDS value in the pure water tank is less than the preset value, the pure water in the tank is considered suitable for drinking; when the TDS value in the pure water tank is greater than the preset value, the pure water in the tank is considered unsuitable for drinking, and the subsequent procedure is initiated.

[0044] Understandably, when the TDS value in the pure water tank exceeds the preset value, the controller first connects the pure water tank 30 and the raw water tank 10 through the four-way valve 70. Then, the water pump 60 starts to send the pure water in the pure water tank 30 to the raw water tank 10 through the return pipe. After the pure water in the pure water tank 30 is emptied, the controller controls the rotating component 91 to rotate and simultaneously supplies water to the nozzle 92. The rotating component 91 drives the nozzle 92 to rotate along the inner wall of the pure water tank 30, removing impurities deposited on the side wall through water jets, thus cleaning the pure water tank 30. The water generated after cleaning can be directly discharged from the water purification equipment 100 to achieve automatic cleaning of the pure water tank.

[0045] The present invention also provides a cleaning method for a water purification device 100, comprising: The TDS value collected by the TDS detector 84 in the pure water tank 30 is obtained, and it is determined whether the current TDS value is greater than a preset value. When the controller determines that the current TDS value is greater than the preset value, it controls the four-way valve 70 to connect the raw water tank 10 and the pure water tank 30, and at the same time controls the water pump 60 to work to transport the pure water in the pure water tank 30 to the raw water tank 10. Remove the pure water tank 30 from the base 50, clean the pure water tank 30, and then reinstall the pure water tank 30 on the base 50 after cleaning.

[0046] Understandably, the TDS detector 84 refers to a sensor used to detect the total dissolved solids content in water. Specifically, it can be implemented using a conductivity sensor, indirectly reflecting the TDS value by measuring the conductivity of the water. The TDS detector 84 can periodically retrieve the TDS value of the pure water tank 30, for example, once every hour or once every two hours, and feed the retrieved TDS value back to the controller. The controller then determines whether the current TDS value in the pure water tank meets the water demand. When the TDS value in the pure water tank is less than the preset value, the pure water in the tank is considered suitable for drinking; when the TDS value in the pure water tank is greater than the preset value, the pure water in the tank is considered unsuitable for drinking, and the subsequent procedure is initiated.

[0047] Understandably, when the TDS value in the pure water tank exceeds the preset value, the controller first connects the pure water tank 30 and the raw water tank 10 via the four-way valve 70. Then, the water pump 60 starts to send the pure water in the pure water tank 30 to the raw water tank 10 through the return pipe. After the pure water in the pure water tank 30 is emptied, the user can manually remove the pure water tank 30 from the base 50 and manually clean it. Specifically, an openable cover can be installed on the top of the pure water tank 30. After removing the pure water tank 30 from the base 50, the inside of the pure water tank 30 can be cleaned by opening the cover, thus achieving complete cleaning of the inside of the pure water tank 30 and improving the water quality of the water purification equipment 100.

[0048] In some implementations, when the TDS value in the pure water tank is greater than a preset value, the controller first controls the connection between the pure water tank 30 and the raw water tank 10 through the four-way valve 70, and then the water pump 60 starts to send the pure water in the pure water tank 30 to the raw water tank 10 through the return pipe. After the pure water in the pure water tank 30 is drained, the controller controls the rotating part 91 to rotate and simultaneously supplies water to the nozzle 92. The rotating part 91 drives the nozzle 92 to rotate along the inner wall of the pure water tank 30, removing impurities deposited on the side wall by spraying water, thus cleaning the pure water tank 30. The water generated after cleaning can be directly discharged from the water purification device 100. After the water generated for cleaning is completely drained from the pure water tank 30, the user can manually remove the pure water tank 30 from the base 50 and manually clean the pure water tank 30. Specifically, an openable cover can be installed on the top of the pure water tank 30. After removing the pure water tank 30 from the base 50, the inside of the pure water tank 30 can be cleaned by opening the cover on the top of the pure water tank 30, so as to achieve complete cleaning of the inside of the pure water tank 30 and improve the water quality of the water purification device 100.

[0049] In this invention, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the invention. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this invention can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this invention can be arbitrarily combined to form yet another embodiment that does not depart from the spirit and scope of the technical solution of this invention, provided there is no contradiction between them.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of the present invention should not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A water purification device, characterized in that, include: The raw water tank, filter assembly, pure water tank, and water conditioning assembly are arranged sequentially along the water flow direction. The raw water tank is connected to the filter assembly, the filter assembly is connected to the pure water tank, the pure water tank is connected to the raw water tank through a return water pipe, and the pure water tank is connected to the water regulating assembly and / or water-using equipment.

2. The water purification equipment according to claim 1, characterized in that, The water purification equipment also includes: a base; The pure water tank is detachably mounted on the base. The base is provided with a water outlet and a water inlet. The pure water tank is provided with a water outlet and a water inlet. The water inlet mates with the water inlet, and the water outlet mates with the water outlet. The inlet is connected to the filter assembly, and the outlet is connected to an outlet pipe, which is used to connect to the water regulating assembly and / or water-using equipment.

3. The water purification equipment according to claim 2, characterized in that, Also includes: Water pump, four-way valve; The water pump is connected to the base through the outlet pipe, and the water pump is connected to the four-way valve. The four-way valve is also connected to a first pipe, a second pipe, and a return pipe. The first pipe is connected to the water-using equipment, and the second pipe is used to connect to the water regulating equipment.

4. The water purification equipment according to claim 3, characterized in that, The water conditioning assembly includes: a mixing tank, a cooling assembly, a heating assembly, and a carbon canister; The heating component is disposed on the first pipe, the cooling component is disposed on the second pipe, the mixing tank is connected to the second pipe, the carbon canister is connected to the mixing tank, and the carbon canister is used to continuously output gas into the mixing tank.

5. The water purification equipment according to claim 4, characterized in that, Also includes: Cold water outlet pipe; The cold water outlet pipe is installed on the second pipe, and the second pipe is equipped with a control valve for connecting or disconnecting the water flow in the second pipe; the cold water outlet pipe is also connected to the mixing tank, and the cold water outlet pipe is used to output ice water or to output sparkling water.

6. The water purification equipment according to claim 5, characterized in that, Also includes: Booster pump; The carbon canister is connected to the mixing tank, the booster pump is connected to the second pipeline, and the booster pump is connected to the mixing tank. The booster pump is used to pressurize the pure water entering the mixing tank.

7. The water purification equipment according to claim 6, characterized in that, The pure water tank is also equipped with a nozzle assembly; The nozzle assembly includes: a rotating component and a nozzle; The rotating component is disposed on the top wall of the pure water tank. The rotating component is connected to the nozzle, and the nozzle is connected to the raw water tank. The rotating component is used to drive the nozzle to rotate.

8. The water purification equipment according to claim 7, characterized in that, Also includes: TDS detector and controller; The TDS detector is installed in the pure water tank, and the controller is installed in the water purification equipment. The TDS detector is connected to the controller, and the controller is also connected to the four-way valve, the rotating component, and the nozzle.

9. The water purification equipment according to any one of claims 4 to 8, characterized in that, The refrigeration assembly includes: a refrigeration component and a heat-conducting component; The refrigeration component is disposed in the cooling conductor, which has a first cooling conductor and a second cooling conductor. The pure water tank is disposed in the first cooling conductor, and the mixing tank is disposed in the second cooling conductor.

10. A cleaning method for a water purification device as described in any one of claims 1 to 9, characterized in that, include: The TDS value collected by the TDS detector in the pure water tank is obtained, and it is determined whether the current TDS value is greater than a preset value. When the controller determines that the current TDS value is greater than the preset value, it controls the four-way valve to connect the raw water tank and the pure water tank, and at the same time controls the water pump to work to transport the pure water in the pure water tank to the raw water tank; The controller controls the operation of the rotating component and the nozzle, so that the rotating component rotates inside the pure water tank and drives the nozzle to clean the side wall of the pure water tank.

11. A cleaning method for a water purification device as described in any one of claims 1 to 9, characterized in that, include: The TDS value collected by the TDS detector in the pure water tank is obtained, and it is determined whether the current TDS value is greater than a preset value. When the controller determines that the current TDS value is greater than the preset value, it controls the four-way valve to connect the raw water tank and the pure water tank, and at the same time controls the water pump to work to transport the pure water in the pure water tank to the raw water tank; Remove the pure water tank from the base, clean the pure water tank, and then reinstall the pure water tank on the base.

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