Clean water dispenser

Abstract

The purification water dispenser comprises a water softening system, a water purification system and a hot water system, the water softening system is communicated with a raw water inlet of the purification water dispenser, the water purification system comprises a reverse osmosis filter element and a booster pump, and a water inlet of the reverse osmosis filter element is communicated with a first soft water outlet channel of the water softening system; the booster pump is arranged between a first soft water outlet channel of the water softening system and a water inlet of the reverse osmosis filter element, a water inlet of the hot water system is communicated with a water outlet of the reverse osmosis filter element, and the hot water system is used for providing hot water softened by the water softening system and purified by the water purification system for a user. According to the technical scheme, raw water can be softened through the water softening system, and the concentration of calcium and magnesium ions in water entering the reverse osmosis filter element is reduced, so that the service life of the reverse osmosis filter element is prolonged.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, and in particular to a water purifier. Background Technology

[0002] Water purifiers are typically equipped with reverse osmosis filters to purify raw water. They separate dissolved solids, salts, heavy metals, and microorganisms from water under high pressure through a semi-permeable membrane with a precision of 0.0001 microns, making it one of the most effective water purification technologies currently available.

[0003] However, in related technologies, water purifiers have relatively limited functions, resulting in a short lifespan for reverse osmosis filter cartridges. Utility Model Content

[0004] This application provides a water purifier designed to improve the problem of short service life of reverse osmosis filter cartridges.

[0005] To address the aforementioned technical problems, this application provides a water purifier, comprising:

[0006] A soft water system is connected to the raw water inlet of the water purifier;

[0007] A water purification system includes a reverse osmosis filter element and a booster pump. The inlet of the reverse osmosis filter element is connected to the first soft water outlet channel of the soft water system. The booster pump is located between the first soft water outlet channel of the soft water system and the inlet of the reverse osmosis filter element.

[0008] A hot water system, wherein the inlet of the hot water system is connected to the outlet of the reverse osmosis filter element, and the hot water system is used to provide users with hot water that has been softened by the water softening system and purified by the water purification system.

[0009] In some embodiments, the soft water system includes:

[0010] Resin tank; and

[0011] The soft water valve has its raw water inlet channel connected to the raw water inlet, its first soft water outlet channel connected to the inlet of the reverse osmosis filter element, and its raw water inlet channel and its first soft water outlet channel connected through the resin tank.

[0012] In some embodiments, the water softening system further includes:

[0013] The brine tank assembly is connected to the brine tank connector of the water softener valve, and the brine tank connector of the water softener valve is connected to the drain connector of the water softener valve through the resin pipe.

[0014] In some embodiments, the water softening system further includes:

[0015] A soft water quality testing device is installed between the first soft water outlet channel of the soft water valve and the inlet of the reverse osmosis filter element.

[0016] In some embodiments, the outlet of the reverse osmosis filter is connected to the pure water outlet of the water purifier.

[0017] In some embodiments, the water purification system further includes:

[0018] A pure water outlet valve is located between the pure water outlet and the outlet of the reverse osmosis filter element.

[0019] In some embodiments, the water purifier further includes:

[0020] A faucet is connected to the pure water outlet and the hot water system outlet, and is used to control the water flow from the pure water outlet and the hot water system outlet.

[0021] In some embodiments, the water purification system further includes:

[0022] The wastewater drainage pipe is connected to the wastewater outlet of the reverse osmosis filter element and is used to discharge the concentrated water from the reverse osmosis filter element.

[0023] In some embodiments, the wastewater drainage pipeline includes:

[0024] A wastewater drain pipe is connected to the wastewater outlet of the reverse osmosis filter element; and

[0025] Wastewater drain valve, installed on the wastewater drain pipe.

[0026] In some embodiments, the water purification system further includes:

[0027] The pure water return pipeline is connected at one end to the outlet of the reverse osmosis filter element and at the other end to the inlet of the reverse osmosis filter element.

[0028] In some embodiments, the pure water return pipeline includes:

[0029] A pure water return pipe, one end of which is connected to the outlet of the reverse osmosis filter element, and the other end of which is connected to the inlet of the reverse osmosis filter element; and

[0030] A pure water reflux control component is installed in the pure water reflux pipe to control whether the pure water reflux pipe is open.

[0031] In some embodiments, the pure water reflux control component is a pure water reflux check valve.

[0032] In some embodiments, the outlet of the pure water return pipeline is connected to the inlet of the booster pump.

[0033] In some embodiments, the hot water system includes:

[0034] A hot tank assembly, wherein the inlet of the hot tank assembly is connected to the outlet of the reverse osmosis filter element; and

[0035] A water pump, the inlet of which is connected to the outlet of the hot tank assembly.

[0036] In some embodiments, the hot tank assembly includes:

[0037] Tank body;

[0038] The heating element is at least partially located within the tank; and

[0039] A temperature control element, at least partially located inside the tank, is used to detect the water temperature inside the tank.

[0040] The water purifier also includes a control board, which is electrically connected to the temperature control element and the heating element to control the operation of the heating element based on the detection result of the temperature control element.

[0041] The water purifier in this embodiment incorporates a water softening system before the reverse osmosis filter cartridge. This system softens the raw water, reducing the concentration of calcium and magnesium ions entering the filter cartridge and preventing scale formation on the membrane surface, thus extending the filter cartridge's lifespan. Simultaneously, a hot water system heats the purified water, enhancing the water purifier's practicality. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the structure of an embodiment of the water purifier of this application;

[0044] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the water purifier of this application;

[0045] Figure 3 This is a schematic diagram of the structure of an embodiment of the water purifier of this application from another perspective;

[0046] Figure 4 This is a water circuit diagram of an embodiment of the water purifier of this application;

[0047] Figure 5 This is a water circuit diagram of yet another embodiment of the water purifier of this application;

[0048] Figure 6 This is a water circuit diagram of another embodiment of the water purifier of this application;

[0049] Figure 7 This is a schematic diagram of the structure of an embodiment of the hot tank assembly of this application;

[0050] Figure 8 This is a schematic diagram of the structure of one embodiment of the hot tank assembly of this application from another perspective;

[0051] Figure 9 for Figure 8 Sectional view at point AA;

[0052] Figure 10 This is an exploded view of an embodiment of the hot tank assembly of this application;

[0053] Figure 11 This is a schematic diagram of the structure of a soft water valve according to an embodiment of this application;

[0054] Figure 12 This is a cross-sectional structural schematic diagram of a soft water valve according to an embodiment of this application;

[0055] Figure 13 This is an exploded view of a soft water valve according to an embodiment of this application.

[0056] Explanation of reference numerals in the attached figures:

[0057] 001. Water purifier; 001a. Raw water inlet; 1A. Faucet; 10. Housing assembly; 10A. Inner cavity; 002. Soft water system; 010. Resin tank; 020. Soft water valve; 021. Main valve body; 0211. Raw water inlet pipe; 0211A. Raw water inlet channel; 0212. First soft water outlet pipe; 0212A. First soft water outlet channel; 0213. Raw water outlet pipe; 0213A. Raw water outlet channel; 0214. Second soft water outlet pipe; 0214A. Second soft water outlet channel; 0215. 0215A, Main Chamber; 0215B, First Liquid Passage Channel; 022, Secondary Valve Body; 0221, Second Valve Body; 0221A, Fourth Liquid Passage Channel; 0221B, Fifth Liquid Passage Channel; 0221C, Sixth Liquid Passage Channel; 0222, First Tank Body Connector; 0222A, First Tank Body Passage; 0223, Second Tank Body Connector; 0223A, Second Tank Passage; 0224, Brine Tank Connector; 0224A, Brine Passage Channel; 0225, Drain Connector; 023, Valve Core Assembly; 023 1. Valve core; 0232. Drive unit; 024. Jet assembly; 030. Salt tank assembly; 040. Soft water quality testing component; 004. Hot water system; 20. Heating tank assembly; 21. Tank body; 211. Tank frame; 212. Tank top cover; 213. Tank bottom cover; 21a. Heating chamber; 22. Heating element; 221. Terminal; 23. Detection assembly; 232. Water level detection element; 233. High water level probe; 234. Low water level probe; 237. Temperature control element; 2371. Temperature control mounting plate; 2372. Temperature sensor. Sensor; 2373, Second through-hole; 251, Hot water tank water supply valve; 30, Water pump; 003, Water purification system; 50, Filtration system; 52, Pre-filter; 53, Reverse osmosis filter; 54, Wastewater drain pipe; 541, Wastewater drain pipe; 542, Wastewater drain valve; 56, Pure water return pipe; 561, Pure water return pipe; 562, Pure water return control component; 563, Pure water return check valve; 57, Water dispenser; 003a, Pure water outlet valve; 003b, High pressure switch; 70, Booster pump; 80, Control board. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0059] Water purifiers are typically equipped with reverse osmosis filters to purify raw water. They separate dissolved solids, salts, heavy metals, and microorganisms from water under high pressure through a semi-permeable membrane with a precision of 0.0001 microns, making it one of the most effective water purification technologies currently available.

[0060] However, in related technologies, water purifiers have relatively limited functions, resulting in a short lifespan for reverse osmosis filter cartridges. The raw water is typically hard water containing a large amount of calcium and magnesium ions. After being filtered by the reverse osmosis filter cartridge, these calcium and magnesium ions accumulate on the concentrate side of the cartridge. This makes it easy for calcium and magnesium ions to form scale on the membrane surface, leading to membrane blockage and excessively high in-membrane pressure. This reduces the water permeability of the reverse osmosis filter cartridge and shortens its lifespan.

[0061] To resolve the above issues, please refer to the following: Figures 1 to 3 This application provides a water purifier 001, which includes a water softening system 002, a water purification system 003, and a hot water system 004. The water softening system 002 is connected to the raw water inlet 001a of the water purifier 001. The water softening system 002 is mainly used to soften the raw water to reduce the content of calcium and magnesium ions in the raw water, thereby obtaining soft water. The water softening system 002 can soften the raw water by distillation, or by ion exchange, or by other methods, which are not specifically limited here.

[0062] Please see Figure 4 The water purification system 003 includes a reverse osmosis filter element 53 and a booster pump 70. The inlet of the reverse osmosis filter element 53 is connected to the first soft water outlet channel 0212A of the soft water system 002. The reverse osmosis module is mainly used to filter soft water to obtain pure water. The reverse osmosis filter element 53 can filter out microorganisms, dissolved salts, colloidal substances, heavy metal ions, etc. in the soft water, thereby achieving potable-grade pure water. The membrane of the reverse osmosis filter element 53 can be one or more of cellulose acetate membrane, polyamide membrane, etc.

[0063] A booster pump 70 is positioned between the inlet of the reverse osmosis filter element 53 and the first soft water outlet channel 0212A of the soft water system 002. Reverse osmosis technology utilizes the principle of a semi-permeable membrane. Under pressure higher than the osmotic pressure of the solution, water passes through the semi-permeable membrane, while microorganisms, dissolved salts, colloidal substances, heavy metal ions, etc., cannot pass through, thus achieving separation, purification, and concentration. The main function of the booster pump 70 is to increase the water pressure, providing sufficient driving force for the operation of the reverse osmosis filter element 53. This allows water to overcome the membrane resistance of the reverse osmosis filter element 53 and pass smoothly through it, effectively separating impurities and salts from the water.

[0064] Please see Figure 3 The inlet of the hot water system 004 is connected to the outlet of the reverse osmosis filter element 53. The hot water system 004 is used to provide users with hot water that has been softened by the water softening system 002 and purified by the water purification system 003.

[0065] The water purifier 001 in this embodiment incorporates a water softening system 002 before the reverse osmosis filter element 53. This softening system reduces the concentration of calcium and magnesium ions in the water entering the reverse osmosis filter element 53 by softening the raw water, thus preventing scale formation on the membrane surface and extending the lifespan of the filter element. Simultaneously, a hot water system 004 heats the purified water from the reverse osmosis filter element 53, further enhancing the practicality of the water purifier 001.

[0066] Please refer to the following: Figures 1 to 3 In some embodiments, the water purifier 001 includes a housing assembly 10, which has an inner cavity 10A. Both the water softening system 002 and the water purification system 003 are disposed within the inner cavity 10A, serving as the external frame of the entire water purifier 001. Its overall outer contour is rectangular. This design is particularly suitable for installation in kitchen areas. Kitchens typically have regular cabinet space, and the rectangular water purifier 001 can be easily integrated under the cabinets or placed in a corner of the kitchen countertop, blending seamlessly with the overall kitchen environment.

[0067] Please see Figure 4 In some embodiments, the hot water system 004 includes a hot water tank assembly 20 and a hot water tank inlet valve 251 connected to the hot water tank assembly 20. The hot water tank inlet valve 251 is connected to the outlet of the reverse osmosis filter element 53. The hot water tank assembly 20 is used to provide users with hot water that has been softened by the water softening system 002 and purified by the water purification system 003. The hot water tank assembly 20 is mainly used to store and heat pure water to provide hot water to users. With this configuration, the hot water tank assembly 20 can provide hot water to users in a timely manner when they need it, thereby shortening the time users wait for hot water to be heated and improving the user experience.

[0068] The hot water supply valve 251 is used to control the water inlet of the hot water tank assembly 20, thereby preventing the pure water filtered by the reverse osmosis filter element 53 from directly entering the hot water tank assembly 20 when the user draws water, which would affect the hot water temperature inside the hot water tank assembly 20. As a result, the hot water tank assembly 20 can provide the user with hot water at a stable temperature.

[0069] There are many ways to heat water in the hot water tank assembly 20. The hot water tank assembly 20 can heat water by resistance heating, induction heating, or infrared heating. No specific limitation is made here.

[0070] When the water in the heating tank assembly 20 is insufficient, the user can manually open the heating tank water supply valve 251 to replenish the heat pipe assembly with pure water. Alternatively, a water level detection component 23 and a control board 80 can be installed in the heating tank assembly 20. When the water level detection component 23 detects that the pure water in the heating tank assembly 20 is insufficient, the control board 80 will open the heating tank water supply valve 251 to replenish the heating tank assembly 20 with water. These methods will not be listed in detail here.

[0071] Please refer to the following: Figures 7 to 10 The following is a detailed description of the hot tank assembly 20.

[0072] The hot water tank assembly 20 includes a tank body 21, a heating element 22, and a detection assembly 23. The heating element 22 is at least partially located inside the tank body 21. The detection assembly 23 includes a water level detection element 232, which extends at least partially into the tank body 21. The water level detection element 232 is used to detect the water level inside the tank body 21. The water purifier 001 also includes a control board 80, which is electrically connected to the hot water tank replenishment valve 251 and the water level detection element 232 to control the operation of the hot water tank replenishment valve 251 according to the detection result of the water level detection element 232.

[0073] With this configuration, the control board 80 can detect the water level of pure water in the tank 21 through the water level detection element 232, and control the operation of the hot tank water supply valve 251 accordingly, thereby protecting the hot tank assembly 20.

[0074] For example, the water level detection element 232 is used to detect the minimum water level of pure water in the tank 21. When the water level in the tank 21 is lower than a preset value, the water level detection element 232 sends a signal to the control board 80. The control board 80 then controls the hot water tank replenishment valve 251 to open and replenish water to the tank 21, thereby preventing the heating element 22 from burning dry and causing damage to the hot water tank assembly 20. As another example, the water level detection element 232 is used to detect the maximum water level of pure water in the tank 21. When the water level in the tank 21 is higher than a preset value, the water level detection element 232 sends a signal to the control board 80. The control board 80 then controls the hot water tank replenishment valve 251 to close, thereby preventing pure water from overflowing from the tank 21 and affecting the normal operation of the water purifier 001. These are just a few examples.

[0075] Please see Figures 7 to 10The tank body 21 has a heating chamber 21a, which can be used to hold liquid. A heating element 22 is connected to the tank body 21 to heat the liquid within the heating chamber 21a. It is understood that the heating element 22 can be installed on or near the outer wall of the tank body 21 to transfer heat to the liquid within the heating chamber 21a via thermal conduction, thereby heating the liquid within the heating chamber 21a; alternatively, the heating element 22 can be installed inside the heating chamber 21a and connected to the tank body 21, in which case the heating element 22 can directly heat the liquid within the heating chamber 21a. This embodiment of the application does not specifically limit this approach.

[0076] When the heating element 22 is located in the heating chamber 21a, the terminal 221 of the heating element 22 can penetrate the tank 21 so that the terminal 221 extends out of the outer wall of the tank 21, so that the control board 80 can be electrically connected to the terminal 221, thereby facilitating the control board 80 to control the heating element 22 to work according to the set program, thereby realizing the heating of the liquid in the heating chamber 21a.

[0077] Specifically, the water level detection element 232 is connected to the tank 21 and communicates with the heating chamber 21a, so that the water level detection element 232 can detect the water level in the heating chamber 21a. Furthermore, this embodiment does not specifically limit the type of the water level detection element 232. For example, the water level detection element 232 can be one of a float-type water level sensor, an electrode-type water level sensor, and a capacitive water level sensor. The float-type water level sensor detects changes in water level by the up-and-down movement of a float. When the water level rises, the float rises accordingly; when the water level falls, the float falls. The movement of the float triggers a switch inside the float-type water level sensor, thereby outputting a corresponding electrical signal to the control board 80 to detect the water level in the heating chamber 21a. The electrode-type water level sensor detects the water level by placing electrodes in the heating chamber 21a and utilizing the conductivity of water. When the water level rises and contacts the electrode, the circuit is activated, outputting an electrical signal to the control board 80 to detect the water level in the heating chamber 21a. The capacitive water level sensor detects the water level by measuring the capacitance between the sensor and the water level. As the water level rises, the capacitance changes, outputting a corresponding electrical signal to the control board 80 to detect the water level in the heating chamber 21a.

[0078] Please continue reading. Figure 9Furthermore, in some embodiments, the water level detection element 232 includes a high water level probe 233 and a low water level probe 234. It is understood that the high water level probe 233 is used to detect the position of the highest water level in the heating chamber 21a, and the low water level probe 234 is used to detect the position of the lowest water level in the heating chamber 21a; that is, when the liquid in the heating chamber 21a rises to the highest water level, the water inlet pipe 25 stops supplying water to the heating chamber 21a to prevent the liquid in the heating chamber 21a from overflowing; when the liquid in the heating chamber 21a drops to the lowest water level, the water inlet pipe 25 supplies water to the heating chamber 21a to prevent the heating chamber 21a from drying out.

[0079] It should be noted that the embodiments of this application do not specifically limit the positions of the high water level probe 233 and the low water level probe 234 on the tank body 21.

[0080] Please continue reading. Figure 10 In another embodiment, the water level detection element 232 may include two high water level probes 233 and one low water level probe 234. The two high water level probes 233 may be disposed on the tank top cover 212, and the high water level positions detected by the two high water level probes 233 are not identical; that is, there are first and second high water level positions within the heating chamber 21a, and the first high water level position is higher than the second high water level position in the height direction of the tank body 21. In this case, one high water level probe 233 is used to detect the first high water level position, and the other high water level probe 233 is used to detect the second high water level position. Even if the other high water level probe 233 malfunctions, detection can still be performed using the first high water level probe 233, thereby improving the accuracy of the high water level detection. Furthermore, the low water level probe 234 may be disposed on the tank top cover 212 or the tank bottom cover 213 to detect the lowest water level position within the heating chamber 21a.

[0081] Please continue reading. Figure 9 In some embodiments, the detection component 23 further includes a temperature control element 237, which is at least partially located inside the tank 21. The temperature control element 237 is used to detect the water temperature inside the tank 21. The control board 80 is electrically connected to the temperature control element 237 and the heating element 22 to control the operation of the heating element 22 based on the detection result of the temperature control element 237. With this configuration, the user can adjust the hot water temperature according to their needs, thereby improving the user experience.

[0082] When the temperature control element 237 detects that the water temperature is higher than the preset value, the temperature control component sends a signal to the control board 80, which then controls the heating element 22 to stop working, thereby preventing the water temperature from exceeding the preset value. When the temperature control element 237 detects that the water temperature is lower than the preset value, the temperature control component sends a signal to the control board 80, which then controls the heating element 22 to work, thereby maintaining the water temperature at the preset value.

[0083] The temperature control element 237 is connected to the tank body 21 and communicates with the heating chamber 21a; that is, a portion of the temperature control element 237 extends into the heating chamber 21a so that the temperature control element 237 can detect the temperature of the liquid in the heating chamber 21a. The temperature control element 237 may be disposed on the top cover 212 of the tank or on the body 211 of the tank, and this embodiment does not specifically limit the placement of the temperature control element 237.

[0084] Please continue reading. Figure 10 Furthermore, in some embodiments, the temperature control element 237 includes a temperature control fixing plate 2371 and a temperature sensor 2372. Specifically, the temperature control fixing plate 2371 is connected to the tank body 21; that is, when the temperature control element 237 is installed on the tank body 211, the temperature control fixing plate 2371 can be fixed to the tank body 211, the tank top cover 212, or the tank bottom cover 213 by welding, screwing, snapping, or bonding. The temperature control fixing plate 2371 is provided with a second through hole 2373 communicating with the heating chamber 21a. This allows the temperature sensor 2372 to extend into the heating chamber 21a through the second through hole 2373, so that the temperature sensor 2372 can detect the temperature of the liquid in the heating chamber 21a. When the temperature of the liquid is too high, the control board 80 can control the heating element 22 to stop heating, thereby protecting the tank body 21.

[0085] Please see Figure 4 In some embodiments, the water purification system 003 further includes a pre-filter element 52. The inlet of the pre-filter element 52 is connected to the first soft water outlet channel 0212A of the soft water system 002, and the outlet of the pre-filter element 52 is connected to the inlet of the reverse osmosis filter element 53. This can be understood as the pre-filter element 52 being positioned between the soft water system 002 and the reverse osmosis filter element 53. Alternatively, the inlet of the pre-filter element 52 is connected to the raw water inlet 001a, and the outlet of the pre-filter element 52 is connected to the inlet of the reverse osmosis filter element 53. This can also be understood as the pre-filter element 52 being positioned between the soft water system 002 and the raw water inlet 001a. With this configuration, the pre-filter element 52 filters large particulate impurities in the raw water or soft water, thereby reducing the filtration pressure on the reverse osmosis filter element 53 and thus increasing its service life.

[0086] The pre-filter element 52 can be one or more of the following: stainless steel filter element, PP cotton filter, ceramic filter, compressor filter, and activated carbon filter; no specific limitation is made here. The pre-filter element 52 can remove visible impurities such as sediment, rust, and insect eggs from the water.

[0087] Please see Figure 4In some embodiments, the water softening system 002 includes a resin tank 010 and a water softening valve 020. The raw water inlet channel 0211A of the water softening valve 020 is connected to the raw water inlet 001a, and the first soft water outlet channel 0212A of the water softening valve 020 is connected to the inlet of the reverse osmosis filter element 53. The raw water inlet channel 0211A and the first soft water outlet channel 0212A of the water softening valve 020 are connected through the resin tank 010. With this configuration, the resin tank 010 utilizes the physicochemical principle of ion exchange, eliminating the need for large amounts of chemical reagents, thus reducing environmental pollution and potential health hazards. Furthermore, the maintenance of the resin tank 010 is relatively simple, requiring no complex technology or specialized equipment. Regularly checking the resin's condition, replenishing brine (for water softening using ion exchange resin), and performing necessary cleaning are sufficient. The resin has a long service life; generally, with proper use and maintenance, it can be used for several years or even longer, reducing the maintenance cost of the water softening system 002.

[0088] Furthermore, the water softening system 002 also includes a brine tank assembly 030, which is connected to the brine tank connector 0224 of the water softening valve 020. The brine tank connector 0224 is connected to the drain connector 0225 of the water softening valve 020 via a resin pipe. With this configuration, the brine tank assembly 030 can provide salt to the resin tank 010. Raw water passes through the brine tank connector 0224 of the water softening valve 020 to obtain salt, forming brine. This brine then undergoes ion exchange with the resin tank 010 to complete the regeneration process, and finally is discharged through the drain connector 0225 of the water softening valve 020. This eliminates the need for users to manually add salt, thus making it easier for users to use the water purifier 001.

[0089] The water purifier 001 can periodically regenerate the resin tank 010, or it can regenerate the resin tank 010 when the soft water TDS value of the soft water flowing out of the first soft water outlet channel 0212A of the soft water system 002 is detected to be abnormal by the soft water quality testing device 040, without making any specific limitations.

[0090] Preferably, the water softening system 002 also includes a water softening quality detection element 040, which is located between the first soft water outlet channel 0212A of the water softening valve 020 and the inlet of the reverse osmosis filter element 53. With this configuration, when the water softening quality detection element 040 detects an abnormal TDS value in the soft water flowing out of the first soft water outlet channel 0212A of the water softening valve 020, the water purifier 001 will then restart the regeneration step of the resin tank 010. This saves water and salt resources, and timely regeneration of the resin tank 010 prevents excessively high calcium and magnesium ion content in the soft water flowing into the reverse osmosis filter element 53, which could shorten its lifespan.

[0091] It should be noted that when the soft water quality testing device 040 detects an abnormal TDS value in the soft water, it can prompt the user to start the regeneration step of the resin tank 010 through a buzzer, or it can automatically start the regeneration step of the resin tank 010 through the control board 80. No specific limitation is made here.

[0092] Please refer to the following: Figures 11 to 12 A soft water valve 020 is used in a water purifier 001. The soft water valve 020 includes a valve body with an inlet raw water channel 0211A and a first soft water outlet channel 0212A. The inlet raw water channel 0211A receives raw water, and the first soft water outlet channel 0212A receives soft water generated after the raw water has been treated by the resin tank 010 of the water purifier 001. The valve body also has an outlet raw water channel 0213A and a second soft water outlet channel 0214A. The outlet raw water channel 0213A communicates with the inlet raw water channel 0211A to guide a portion of the raw water entering the inlet raw water channel 0211A to flow directly out of the inlet raw water channel 0211A. The second soft water outlet channel 0214A communicates with the first soft water outlet channel 0212A to guide a portion of the soft water entering the first soft water outlet channel 0212A to flow directly out of the first soft water outlet channel 0212A.

[0093] Please see Figure 11 In this embodiment, the soft water valve 020 can split and output raw water and soft water to meet different user needs and improve the user experience. The raw water, after being treated by the water purifier 001, is supplied to the user for domestic use, such as washing vegetables and watering plants, without requiring external piping to the water purifier 001, thus reducing material and installation costs. The soft water valve 020 of this application has two soft water output channels, capable of supplying different soft water-using components. For example, the first soft water outlet channel 0212A supplies the water purification system 003 to reduce scale buildup, while the second soft water outlet channel 0214A supplies drinking water to the user.

[0094] It should be noted that the soft water valve 020 includes a valve body and multiple control components disposed within the valve body. Multiple water delivery channels are formed within the valve body. These multiple water delivery channels are used to connect to external raw water pipelines, sewage pipelines, and the resin tank 010 and brine tank assembly 030 of the soft water system 002, respectively. The control components are used to control the opening and closing of the multiple water delivery channels to switch the flow path within the soft water valve 020, thereby realizing multiple functions such as soft water production, salt dissolution, salt absorption, and backwashing.

[0095] Please see Figure 11In some embodiments, the soft water valve 020 includes a main valve body 021, which includes an inlet raw water connector 0211 and an outlet raw water connector 0213. The inlet raw water connector 0211 has an inlet raw water channel 0211A, and the outlet raw water connector 0213 has an outlet raw water channel 0213A. The outlet raw water connector 0213 is located at the inlet raw water connector 0211, so that the outlet raw water channel 0213A is connected to the inlet raw water channel 0211A. Raw water entering the soft water valve 020 from the external raw water pipeline passes through the inlet raw water channel 0211A and the outlet raw water channel 0213A in sequence and is directly output from the soft water valve 020, thus shortening the path of raw water supply to the soft water valve 020 as much as possible, avoiding turbulence and pressure drop caused by multi-stage diversion, and ensuring rapid supply of raw water.

[0096] To meet various water usage scenarios, the main valve body 021 in this embodiment includes a first soft water outlet connector 0212 and a second soft water outlet connector 0214. The first soft water outlet connector 0212 has a first soft water outlet channel 0212A, and the second soft water outlet connector 0214 has a second soft water outlet channel 0214A. The main valve body 021 is equipped with two soft water outlet connectors, eliminating the need for additional T-junctions or other diversion devices, thus covering the needs of multiple scenarios. The second soft water outlet connector 0214 is located within the first soft water outlet connector 0212, allowing the first soft water outlet channel 0212A to connect with the second soft water outlet channel 0214A. The two soft water supply channels are internally connected to ensure balanced water pressure.

[0097] Please see Figure 12 In some embodiments, the main valve body 021 includes a first valve housing 0215, a raw water inlet connector 0211, and a first soft water outlet connector 0212. The raw water inlet connector 0211 has a raw water inlet channel 0211A, and the first soft water outlet connector 0212 has a first soft water outlet channel 0212A. The first valve housing 0215 has a main chamber 0215A. The raw water inlet connector 0211 and the first soft water outlet connector 0212 are disposed outside the first valve housing 0215 and respectively connected to the first valve housing 0215 to facilitate installation with other components. The soft water valve 020 also includes a valve core assembly 023, which is located in the main chamber 0215A. The raw water inlet channel 0211A is connected to the main chamber 0215A. The valve core assembly 023 is used to regulate the connection and disconnection between the main chamber 0215A and the resin tank 010 or brine tank assembly 030 of the water purifier 001, so as to control the supply of water from the raw water inlet channel 0211A to the resin tank 010 or brine tank assembly 030, thereby meeting the water supply requirements for soft water production or resin regeneration.

[0098] Please see Figure 12In some embodiments, the raw water inlet pipe 0211 and the first soft water outlet pipe 0212 are arranged side by side. The raw water inlet channel 0211A and the main chamber 0215A are connected by a first liquid passage 0215B located in the first valve housing 0215. The first liquid passage 0215B extends from the raw water inlet pipe 0211 toward the main chamber 0215A. The first liquid passage 0215B is designed in a straight line. The raw water does not need to pass through multiple bends in the raw water inlet channel 0211A and the first liquid passage 0215B, and can quickly flow to the main chamber 0215A, thereby improving the water flow efficiency.

[0099] Please see Figure 13 In some embodiments, the soft water valve 020 further includes a secondary valve body 022, which is used to connect to the resin tank 010 and the brine tank assembly 030. The secondary valve body 022 includes a second valve housing 0221 and a first tank connector 0222 and a second tank connector 0223 disposed on the second valve housing 0221. The second valve housing 0221 is connected to the first valve housing 0215. The first tank connector 0222 has a first tank channel 0222A, and the second tank connector 0223 has a second tank channel 0223A. The first tank channel 0222A and the second tank channel 0223A are respectively used to communicate with the resin cavity of the resin tank 010 to deliver raw water or brine to the resin tank 010.

[0100] Specifically, the first tank channel 0222A connects to the top of the resin chamber, and the second tank channel 0223A connects to the bottom of the resin chamber. When the soft water valve 020 is working, water enters the resin tank 010 through either the first tank channel 0222A or the second tank channel 0223A. For example, during the soft water production process of the soft water system 002, raw water enters the top of the resin tank 010 through the first tank channel 0222A, flows through the resin chamber, and then enters the soft water valve 020 through the second tank channel 0223A, which connects to the bottom of the resin chamber; during the resin regeneration process of the soft water system 002, raw water or brine enters the bottom of the resin tank 010 through the second tank channel 0223A, and then enters the soft water valve 020 through the first tank channel 0222A, which connects to the top of the resin chamber.

[0101] Please see Figure 12 In some embodiments, the valve core assembly 023 includes a valve core 0231 and a drive unit 0232. The drive unit 0232 is mounted on the first valve housing 0215 and connected to the valve core 0231 to drive the valve core 0231 to switch between multiple valve core positions, thereby adjusting the on / off state of the soft water valve 020 and the resin tank 010 or salt tank assembly 030 of the water purifier 001.

[0102] Please see Figure 13In some embodiments, the secondary valve body 022 further includes a brine tank connector 0224 connected to the second valve housing 0221. The brine tank connector 0224 has a brine passage 0224A, which is used to connect to the brine tank assembly 030. The second valve housing 0221 has a fourth liquid passage 0221A, which connects to the main chamber 0215A and the brine passage 0224A respectively. The valve core assembly 023 has a second valve core position. At the second valve core position, the raw water inlet channel 0211A, the main chamber 0215A, the fourth liquid passage 0221A, and the brine passage 0224A are connected in sequence to guide raw water from the brine tank connector 0224 into the brine tank assembly 030. That is, the second valve core position of the valve core assembly 023 defines the water injection path of the soft water valve 020. When the soft water valve 020 is actually working, the valve core assembly 023 switches to the second valve core position to realize the water injection action of the brine tank for resin regeneration, so as to facilitate the formation of brine for subsequent regeneration processes.

[0103] Please see Figure 13 In some embodiments, along the extension direction of the raw water inlet pipe 0211, the raw water inlet pipe 0211 and the first soft water outlet pipe 0212 are located on one side of the first valve housing 0215 and are arranged side by side to reduce the risk of interference in the pipeline installed on the soft water valve 020 caused by the staggered arrangement of the pipes. The secondary valve body 022 is located on the other side of the first valve housing 0215 to distribute the pipes on both sides of the soft water valve 020 along the extension direction of the raw water inlet pipe 0211, so as to facilitate the connection between the resin tank 010 and the brine tank assembly 030.

[0104] Please see Figure 11 In some embodiments, the inlet raw water connector 0211 and the first outlet soft water connector 0212 extend in the same direction. The portion of the valve housing having the outlet raw water channel 0213A extends perpendicularly to the extension direction of the inlet raw water connector 0211, meaning the outlet raw water connector 0213 is positioned perpendicular to the inlet raw water connector 0211. The internal water paths of the two are orthogonal, reducing pipe cross-cutting and installation complexity. The portion of the valve housing having the second outlet soft water channel 0214A extends perpendicularly to the extension direction of the first outlet soft water connector 0212, meaning the second outlet soft water connector 0214 is positioned perpendicular to the first outlet soft water connector 0212. The internal water paths of the two are orthogonal, reducing pipe cross-cutting and installation complexity.

[0105] Please see Figure 13In some embodiments, the second valve housing 0221 is further provided with a fifth liquid passage 0221B for connecting the fourth liquid passage 0221A and the second tank passage 0223A. The fifth liquid passage 0221B is connected to the salt passage 0224A. The sub-valve body 022 also includes a jet assembly 024, which is disposed in the fifth liquid passage 0221B of the second valve housing 0221 and is used to control the flow direction of water in the salt passage 0224A. The valve core assembly 023 of this application embodiment also has a third valve core position. In the third valve core position, the jet assembly 024 is activated and forms a negative pressure to cause the brine in the brine tank assembly 030 to flow back into the salt passage 0224A. Furthermore, at the third valve core position, the raw water inlet channel 0211A, the main chamber 0215A, the fourth liquid passage 0221A, the fifth liquid passage 0221B, and the second tank channel 0223A are sequentially connected, so that the brine formed in the brine tank assembly 030 and the raw water entering the soft water valve 020 merge and enter the bottom of the resin tank 010 through the second tank connector 0223 to regenerate the resin in the resin tank 010.

[0106] The second valve housing 0221 is also provided with a sixth liquid passage 0221C for connecting the main chamber 0215A and the second tank passage 0223A. The valve core assembly 023 of this application embodiment also has a fourth valve core position. At the fourth valve core position, the raw water inlet passage 0211A, the main chamber 0215A, the sixth liquid passage 0221C and the second tank passage 0223A are connected in sequence so that the raw water entering the soft water valve 020 enters the bottom of the resin tank 010 from the second tank connector 0223 to backwash the resin tank 010.

[0107] Please see Figure 11 In some embodiments, the second valve housing 0221 is provided with a drain pipe 0225, which is connected to the first tank channel 0222A. When the soft water system 002 is regenerating resin, the drain pipe 0225 is used to discharge regenerated wastewater from the first tank channel 0222A.

[0108] The water softening system 002 includes a resin tank 010, a brine tank assembly 030, and a water softening valve 020. The brine tank assembly 030 is arranged side-by-side with the resin tank 010 along a first direction. The water softening valve 020 is installed in the resin tank 010 and is connected to both the resin tank 010 and the brine tank assembly 030. In the water softening system 002, the water softening valve 020 controls the flow of raw water into the resin tank 010 to produce soft water. The water softening valve 020 also controls the flow of raw water into the brine tank assembly 030 to form brine, and controls the mixing of the brine with the raw water before it enters the resin tank 010 to regenerate the resin.

[0109] The water softening system 002 and the water purification system 003 are arranged side by side along a second direction, which is perpendicular to the first direction. In the water softening system 002, the water softening valve 020 directs the soft water formed in the resin tank 010 to the water purification system 003. In this way, the water purification system 003 filters the soft water, and the filter element in the water purification system 003 is less prone to clogging, thereby extending the service life of the filter element.

[0110] Further, please refer to Figure 4 The water purification system 003 also includes a high-pressure switch 003b. The inlet of the high-pressure switch 003b is connected to the outlet of the reverse osmosis filter element 53, and the outlet of the high-pressure switch 003b is connected to the inlet of the hot water tank make-up valve 251. The control board 80 is electrically connected to the high-pressure switch 003b and the booster pump 70. With this configuration, the high-pressure switch 003b monitors the water pressure in the system. When the pressure reaches the set upper limit, the high-pressure switch 003b sends a signal to the control board 80, which then controls the booster pump 70 to stop working. This is to prevent excessive system pressure from damaging the reverse osmosis filter element 53, and also to avoid shortening the service life of the booster pump 70 by operating under high pressure for extended periods.

[0111] Please see Figure 4 In some embodiments, the outlet of the reverse osmosis filter 53 is connected to the pure water outlet of the water purifier 001. With this configuration, the water purifier 001 can supply pure water to the user through the pure water outlet, thereby improving the user experience.

[0112] Furthermore, the water purification system 003 also includes a pure water outlet valve 003a, which is located between the pure water outlet and the outlet of the reverse osmosis filter element 53. With this configuration, the user can control the flow of pure water or stop the flow by controlling the opening and closing of the pure water outlet valve 003a.

[0113] Specifically, the water purifier 001 also includes a faucet 1A, which is connected to both the pure water outlet and the hot water system 004 outlet. Faucet 1A controls the water flow from both the pure water outlet and the hot water system 004 outlet. This configuration allows users to switch between pure water and hot water outlets as needed via faucet 1A, facilitating operation and allowing adjustment of the water flow rate to obtain water at a suitable temperature.

[0114] Please see Figure 4In some embodiments, the water purification system 003 further includes a wastewater drain pipe 54, which is connected to the wastewater outlet of the reverse osmosis filter element 53. The wastewater drain pipe 54 is used to discharge the concentrated water from the reverse osmosis filter element 53. This configuration, by discharging the concentrated water from the reverse osmosis filter element 53 through the wastewater drain pipe 541, maintains the osmotic pressure balance of the reverse osmosis filter element 53, thereby ensuring the filtration effect of the reverse osmosis filter element 53. Furthermore, the concentrated water contains high concentrations of impurities and salts that may crystallize and precipitate on the membrane surface of the reverse osmosis filter element 53, causing membrane pore blockage and reducing the membrane's permeability. Therefore, discharging the concentrated water can protect the reverse osmosis filter element 53, thereby extending its service life.

[0115] Wastewater drainage pipeline 54 may only include wastewater drainage pipe 541, that is, after the reverse osmosis filter element 53 produces concentrated water, it is directly discharged through wastewater drainage pipe 541. Wastewater drainage pipeline 54 may also include wastewater drainage pipe 541 and wastewater drainage valve 542, through which the flow rate of concentrated water of reverse osmosis filter element 53 is controlled. These will not be listed one by one here.

[0116] Preferably, please refer to Figure 4 The wastewater drainage pipeline 54 includes a wastewater drainage pipe 541 and a wastewater drainage valve 542. The wastewater drainage pipe 541 is connected to the wastewater outlet of the reverse osmosis filter element 53, and the wastewater drainage valve 542 is installed on the wastewater drainage pipe 541. This configuration controls the flow rate of the concentrated water in the wastewater drainage pipe 541 through the wastewater drainage valve 542, thereby ensuring that the filtration efficiency of the reverse osmosis filter element 53 is at its optimal state. It can process a certain amount of soft water per unit time, effectively separating it into pure water and concentrated water. The system operates stably, and the ratio of pure water to concentrated water remains relatively stable, meeting the designed processing capacity.

[0117] When the drainage rate is too slow, the concentrated water stays on the membrane surface of the reverse osmosis filter element 53 for too long, which hinders the contact and separation process between the subsequent feed water and the membrane of the reverse osmosis filter element 53, reducing the filtration efficiency of the reverse osmosis filter element 53. This manifests as a decrease in the output water volume and a reduction in the amount of soft water processed per unit time. When the drainage rate is too fast, although it can quickly remove the concentrated water, it may cause changes in the pressure difference across the membrane, affecting the driving force for water molecules to pass through the membrane of the reverse osmosis filter element 53. This will also reduce the filtration efficiency, causing the permeate output to decrease instead of increase, and may also increase energy consumption.

[0118] Please see Figure 4In some embodiments, the water purifier 001 also includes a water dispenser 57, which is connected to the outlet of the reverse osmosis filter 53. With this configuration, users can obtain purified water filtered by the water softening system 002 and the reverse osmosis filter 53 through the water dispenser 57. The water dispenser 57 typically offers multiple water volume options, allowing users to easily select the desired water volume via buttons or touch controls, eliminating the need for additional containers for measurement. This convenience avoids the problem of dispensing too much or too little water, thereby improving the user experience.

[0119] Considering that during the shutdown of water purifier 001, concentrated water may reverse through the membrane of reverse osmosis filter 53 back to the inlet side, resulting in increased salt and other impurity content in the first cup of water upon restarting, please refer to [the relevant documentation]. Figure 5 The water purification system 003 also includes a pure water return pipe 56. One end of the pure water return pipe 56 is connected to the outlet of the reverse osmosis filter element 53, and the other end of the pure water return pipe 56 is connected to the inlet of the reverse osmosis filter element 53. With this configuration, when the water purifier 001 is turned on, the water flowing out of the outlet of the reverse osmosis filter element 53 first enters the inlet of the reverse osmosis filter element 53 through the pure water return pipe 56, so that the reverse osmosis filter element 53 filters the water again, ensuring that the TDS value of the first cup of water is normal. Thus, the user does not need to discard a certain amount of water to ensure water safety, thereby avoiding waste of water resources.

[0120] It should be noted that the pure water return pipeline 56 may include a pure water return pipe 561 and a one-way valve. The one-way valve can prevent the soft water from the soft water system 002 from bypassing the reverse osmosis filter element 53 directly through the pure water return pipe 561. The pure water return pipeline 56 may also include a pure water return pipe 561 and a pure water return control component 562. The flow of the pure water return pipeline 56 is controlled by the pure water return control component 562. The pure water return pipeline 56 may also include a pure water return pipe 561, a pure water return control component 562, and a water pump. The water pump drives water to flow from the outlet of the reverse osmosis filter element 53 to the inlet of the reverse osmosis filter element 53. No specific limitation is made here.

[0121] Preferably, please refer to Figure 5The pure water return pipeline 56 includes a pure water return pipe 561 and a pure water return control component 562. One end of the pure water return pipe 561 is connected to the outlet of the reverse osmosis filter element 53, and the other end of the pure water return pipe 561 is connected to the inlet of the reverse osmosis filter element 53. The pure water return control component 562 is installed on the pure water return pipe 561 and is used to control whether the pure water return pipe 561 is flowing. With this configuration, the pure water return control component 562 can close the pure water return pipe 561, thereby preventing water flowing out of the outlet of the reverse osmosis filter element 53 from entering the pure water return pipe 561 and causing a decrease in the water output efficiency of the water purifier 001. When the user turns on the water purifier 001 for the first time, the pure water return control component 562 opens the pure water return pipe 56, so that the water flowing out of the outlet of the reverse osmosis filter element 53 first returns to the inlet of the reverse osmosis filter element 53 through the pure water return pipe 561.

[0122] It should be noted that the pure water return pipe 56 can operate in several ways. For example, when the water purifier 001 is off, the pure water return control 562 can remain open, allowing the water in the reverse osmosis filter 53 to circulate and filter through the pure water return pipe 561. When the user turns on the water purifier 001, the pure water return control 562 closes, ensuring the water purifier 001 provides potable pure water promptly, thus improving the user experience. Alternatively, when the water purifier 001 is started, the pure water return control 562 activates, while the hot water tank filler valve 251 or the pure water outlet valve 003a remains closed. After the pure water return process is complete, the pure water return control 562 closes, and the hot water tank filler valve 251 or the pure water outlet valve 003a opens. These variations are not listed here.

[0123] Specifically, please refer to Figure 6 The pure water reflux control component 562 is a pure water reflux check valve 563. This configuration prevents the soft water from the soft water system 002 from bypassing the reverse osmosis filter element 53 directly through the pure water reflux pipe 561.

[0124] Preferably, please refer to Figure 4 The outlet of the pure water return pipe 56 is connected to the inlet of the booster pump 70. This configuration allows the booster pump 70 to drive the water in the pure water return pipe 56, thereby accelerating the return efficiency of the pure water return pipe 56 and shortening the user's waiting time. Simultaneously, the booster pump 70 can both drive the flow of water in the pure water return pipe 56 and pressurize the reverse osmosis filter element 53 to improve filtration efficiency, thus optimizing the structure of the water purifier 001.

[0125] Please see Figure 4In some embodiments, the hot water system 004 includes a heating tank assembly 20 and a water pump 30. The inlet of the heating tank assembly 20 is connected to the outlet of the reverse osmosis filter element 53, and the inlet of the water pump 30 is connected to the outlet of the heating tank assembly 20. This configuration allows for the storage of pure water through the heating tank assembly 20, and enables the heating tank assembly 20 to quickly provide hot water when needed, eliminating the need for the user to wait a long time for the hot water system 004 to heat the water. Simultaneously, the water pump 30 improves the water output efficiency of the heating tank assembly 20.

[0126] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0127] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0128] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0129] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0130] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water purifier, characterized in that, include: A soft water system is connected to the raw water inlet of the water purifier; A water purification system includes a reverse osmosis filter element and a booster pump. The inlet of the reverse osmosis filter element is connected to the first soft water outlet channel of the soft water system, and the booster pump is located between the first soft water outlet channel of the soft water system and the inlet of the reverse osmosis filter element. as well as A hot water system, wherein the inlet of the hot water system is connected to the outlet of the reverse osmosis filter element, and the hot water system is used to provide users with hot water that has been softened by the water softening system and purified by the water purification system; The water softening system includes a resin tank and a water softening valve. The raw water inlet channel of the water softening valve is connected to the raw water inlet, and the first water softening outlet channel of the water softening valve is connected to the inlet of the reverse osmosis filter element. The raw water inlet channel of the water softening valve and the first water softening outlet channel of the water softening valve are connected through the resin tank.

2. The water purifier as described in claim 1, characterized in that, The soft water system also includes: The brine tank assembly is connected to the brine tank connector of the water softener valve, and the brine tank connector of the water softener valve is connected to the drain connector of the water softener valve through the resin pipe.

3. The water purifier as described in claim 2, characterized in that, The soft water system also includes: A soft water quality testing device is installed between the first soft water outlet channel of the soft water valve and the inlet of the reverse osmosis filter element.

4. The water purifier as described in claim 1, characterized in that, The outlet of the reverse osmosis filter is connected to the pure water outlet of the water purifier.

5. The water purifier as described in claim 4, characterized in that, The water purification system also includes: A pure water outlet valve is located between the pure water outlet and the outlet of the reverse osmosis filter element.

6. The water purifier as described in claim 4, characterized in that, Also includes: A faucet is connected to the pure water outlet and the hot water system outlet, and is used to control the water flow from the pure water outlet and the hot water system outlet.

7. The water purifier as described in claim 1, characterized in that, The water purification system also includes: The wastewater drainage pipe is connected to the wastewater outlet of the reverse osmosis filter element and is used to discharge the concentrated water from the reverse osmosis filter element.

8. The water purifier as described in claim 7, characterized in that, The wastewater drainage pipeline includes: A wastewater drain pipe is connected to the wastewater outlet of the reverse osmosis filter element; and Wastewater drain valve, installed on the wastewater drain pipe.

9. The water purifier as described in claim 1, characterized in that, The water purification system also includes: The pure water return pipeline is connected at one end to the outlet of the reverse osmosis filter element and at the other end to the inlet of the reverse osmosis filter element.

10. The water purifier as described in claim 9, characterized in that, The pure water return pipeline includes: A pure water return pipe, one end of which is connected to the outlet of the reverse osmosis filter element, and the other end of which is connected to the inlet of the reverse osmosis filter element; and A pure water reflux control component is installed in the pure water reflux pipe to control whether the pure water reflux pipe is open.

11. The water purifier as described in claim 10, characterized in that, The pure water reflux control component is a pure water reflux check valve.

12. The water purifier as described in claim 9, characterized in that, The outlet of the pure water return pipeline is connected to the inlet of the booster pump.

13. The water purifier as described in claim 1, characterized in that, The hot water system includes: A hot tank assembly, wherein the inlet of the hot tank assembly is connected to the outlet of the reverse osmosis filter element; and A water pump, the inlet of which is connected to the outlet of the hot tank assembly.

14. The water purifier as described in claim 13, characterized in that, The hot tank assembly includes: Tank body; The heating element is at least partially located within the tank; and A temperature control element, at least partially located inside the tank, is used to detect the water temperature inside the tank. The water purifier also includes a control board, which is electrically connected to the temperature control element and the heating element to control the operation of the heating element based on the detection result of the temperature control element.

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